From: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Date: Wed, 29 Aug 2018 04:42:40 -0500
Subject: dpaa2-eth: Move DPAA2 Ethernet driver from staging to drivers/net
Git-commit: 34ff68465a17d0c1f022ec9086504cb27dbb2fd7
Patch-mainline: v4.20-rc1
References: fate#326530,fate#326531,fate#326535,fate#326538,fate#326539
The DPAA2 Ethernet driver supports Freescale/NXP SoCs with DPAA2
(DataPath Acceleration Architecture v2). The driver manages
network objects discovered on the fsl-mc bus.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
Documentation/networking/dpaa2/ethernet-driver.rst | 185 +
Documentation/networking/dpaa2/index.rst | 1
MAINTAINERS | 4
drivers/net/ethernet/freescale/Kconfig | 8
drivers/net/ethernet/freescale/Makefile | 2
drivers/net/ethernet/freescale/dpaa2/Makefile | 11
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-trace.h | 158 +
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 2654 +++++++++++++++++
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h | 412 ++
drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c | 280 +
drivers/net/ethernet/freescale/dpaa2/dpkg.h | 480 +++
drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h | 518 +++
drivers/net/ethernet/freescale/dpaa2/dpni.c | 1600 ++++++++++
drivers/net/ethernet/freescale/dpaa2/dpni.h | 824 +++++
drivers/staging/fsl-dpaa2/Kconfig | 8
drivers/staging/fsl-dpaa2/Makefile | 1
drivers/staging/fsl-dpaa2/ethernet/Makefile | 11
drivers/staging/fsl-dpaa2/ethernet/TODO | 18
drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth-trace.h | 158 -
drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c | 2654 -----------------
drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h | 412 --
drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c | 280 -
drivers/staging/fsl-dpaa2/ethernet/dpkg.h | 480 ---
drivers/staging/fsl-dpaa2/ethernet/dpni-cmd.h | 518 ---
drivers/staging/fsl-dpaa2/ethernet/dpni.c | 1600 ----------
drivers/staging/fsl-dpaa2/ethernet/dpni.h | 824 -----
drivers/staging/fsl-dpaa2/ethernet/ethernet-driver.rst | 185 -
27 files changed, 7135 insertions(+), 7151 deletions(-)
create mode 100644 Documentation/networking/dpaa2/ethernet-driver.rst
create mode 100644 drivers/net/ethernet/freescale/dpaa2/Makefile
create mode 100644 drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-trace.h
create mode 100644 drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
create mode 100644 drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
create mode 100644 drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
create mode 100644 drivers/net/ethernet/freescale/dpaa2/dpkg.h
create mode 100644 drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h
create mode 100644 drivers/net/ethernet/freescale/dpaa2/dpni.c
create mode 100644 drivers/net/ethernet/freescale/dpaa2/dpni.h
delete mode 100644 drivers/staging/fsl-dpaa2/ethernet/Makefile
delete mode 100644 drivers/staging/fsl-dpaa2/ethernet/TODO
delete mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth-trace.h
delete mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
delete mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h
delete mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
delete mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpkg.h
delete mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpni-cmd.h
delete mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpni.c
delete mode 100644 drivers/staging/fsl-dpaa2/ethernet/dpni.h
delete mode 100644 drivers/staging/fsl-dpaa2/ethernet/ethernet-driver.rst
--- /dev/null
+++ b/Documentation/networking/dpaa2/ethernet-driver.rst
@@ -0,0 +1,185 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. include:: <isonum.txt>
+
+===============================
+DPAA2 Ethernet driver
+===============================
+
+:Copyright: |copy| 2017-2018 NXP
+
+This file provides documentation for the Freescale DPAA2 Ethernet driver.
+
+Supported Platforms
+===================
+This driver provides networking support for Freescale DPAA2 SoCs, e.g.
+LS2080A, LS2088A, LS1088A.
+
+
+Architecture Overview
+=====================
+Unlike regular NICs, in the DPAA2 architecture there is no single hardware block
+representing network interfaces; instead, several separate hardware resources
+concur to provide the networking functionality:
+
+- network interfaces
+- queues, channels
+- buffer pools
+- MAC/PHY
+
+All hardware resources are allocated and configured through the Management
+Complex (MC) portals. MC abstracts most of these resources as DPAA2 objects
+and exposes ABIs through which they can be configured and controlled. A few
+hardware resources, like queues, do not have a corresponding MC object and
+are treated as internal resources of other objects.
+
+For a more detailed description of the DPAA2 architecture and its object
+abstractions see *Documentation/networking/dpaa2/overview.rst*.
+
+Each Linux net device is built on top of a Datapath Network Interface (DPNI)
+object and uses Buffer Pools (DPBPs), I/O Portals (DPIOs) and Concentrators
+(DPCONs).
+
+Configuration interface::
+
+ -----------------------
+ | DPAA2 Ethernet Driver |
+ -----------------------
+ . . .
+ . . .
+ . . . . . . . . . . . .
+ . . .
+ . . .
+ ---------- ---------- -----------
+ | DPBP API | | DPNI API | | DPCON API |
+ ---------- ---------- -----------
+ . . . software
+ ======= . ========== . ============ . ===================
+ . . . hardware
+ ------------------------------------------
+ | MC hardware portals |
+ ------------------------------------------
+ . . .
+ . . .
+ ------ ------ -------
+ | DPBP | | DPNI | | DPCON |
+ ------ ------ -------
+
+The DPNIs are network interfaces without a direct one-on-one mapping to PHYs.
+DPBPs represent hardware buffer pools. Packet I/O is performed in the context
+of DPCON objects, using DPIO portals for managing and communicating with the
+hardware resources.
+
+Datapath (I/O) interface::
+
+ -----------------------------------------------
+ | DPAA2 Ethernet Driver |
+ -----------------------------------------------
+ | ^ ^ | |
+ | | | | |
+ enqueue| dequeue| data | dequeue| seed |
+ (Tx) | (Rx, TxC)| avail.| request| buffers|
+ | | notify| | |
+ | | | | |
+ V | | V V
+ -----------------------------------------------
+ | DPIO Driver |
+ -----------------------------------------------
+ | | | | | software
+ | | | | | ================
+ | | | | | hardware
+ -----------------------------------------------
+ | I/O hardware portals |
+ -----------------------------------------------
+ | ^ ^ | |
+ | | | | |
+ | | | V |
+ V | ================ V
+ ---------------------- | -------------
+ queues ---------------------- | | Buffer pool |
+ ---------------------- | -------------
+ =======================
+ Channel
+
+Datapath I/O (DPIO) portals provide enqueue and dequeue services, data
+availability notifications and buffer pool management. DPIOs are shared between
+all DPAA2 objects (and implicitly all DPAA2 kernel drivers) that work with data
+frames, but must be affine to the CPUs for the purpose of traffic distribution.
+
+Frames are transmitted and received through hardware frame queues, which can be
+grouped in channels for the purpose of hardware scheduling. The Ethernet driver
+enqueues TX frames on egress queues and after transmission is complete a TX
+confirmation frame is sent back to the CPU.
+
+When frames are available on ingress queues, a data availability notification
+is sent to the CPU; notifications are raised per channel, so even if multiple
+queues in the same channel have available frames, only one notification is sent.
+After a channel fires a notification, is must be explicitly rearmed.
+
+Each network interface can have multiple Rx, Tx and confirmation queues affined
+to CPUs, and one channel (DPCON) for each CPU that services at least one queue.
+DPCONs are used to distribute ingress traffic to different CPUs via the cores'
+affine DPIOs.
+
+The role of hardware buffer pools is storage of ingress frame data. Each network
+interface has a privately owned buffer pool which it seeds with kernel allocated
+buffers.
+
+
+DPNIs are decoupled from PHYs; a DPNI can be connected to a PHY through a DPMAC
+object or to another DPNI through an internal link, but the connection is
+managed by MC and completely transparent to the Ethernet driver.
+
+::
+
+ --------- --------- ---------
+ | eth if1 | | eth if2 | | eth ifn |
+ --------- --------- ---------
+ . . .
+ . . .
+ . . .
+ ---------------------------
+ | DPAA2 Ethernet Driver |
+ ---------------------------
+ . . .
+ . . .
+ . . .
+ ------ ------ ------ -------
+ | DPNI | | DPNI | | DPNI | | DPMAC |----+
+ ------ ------ ------ ------- |
+ | | | | |
+ | | | | -----
+ =========== ================== | PHY |
+ -----
+
+Creating a Network Interface
+============================
+A net device is created for each DPNI object probed on the MC bus. Each DPNI has
+a number of properties which determine the network interface configuration
+options and associated hardware resources.
+
+DPNI objects (and the other DPAA2 objects needed for a network interface) can be
+added to a container on the MC bus in one of two ways: statically, through a
+Datapath Layout Binary file (DPL) that is parsed by MC at boot time; or created
+dynamically at runtime, via the DPAA2 objects APIs.
+
+
+Features & Offloads
+===================
+Hardware checksum offloading is supported for TCP and UDP over IPv4/6 frames.
+The checksum offloads can be independently configured on RX and TX through
+ethtool.
+
+Hardware offload of unicast and multicast MAC filtering is supported on the
+ingress path and permanently enabled.
+
+Scatter-gather frames are supported on both RX and TX paths. On TX, SG support
+is configurable via ethtool; on RX it is always enabled.
+
+The DPAA2 hardware can process jumbo Ethernet frames of up to 10K bytes.
+
+The Ethernet driver defines a static flow hashing scheme that distributes
+traffic based on a 5-tuple key: src IP, dst IP, IP proto, L4 src port,
+L4 dst port. No user configuration is supported for now.
+
+Hardware specific statistics for the network interface as well as some
+non-standard driver stats can be consulted through ethtool -S option.
--- a/Documentation/networking/dpaa2/index.rst
+++ b/Documentation/networking/dpaa2/index.rst
@@ -6,3 +6,4 @@ DPAA2 Documentation
:maxdepth: 1
overview
+ ethernet-driver
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4170,9 +4170,9 @@ F: drivers/soc/fsl/dpio
DPAA2 ETHERNET DRIVER
M: Ioana Radulescu <ruxandra.radulescu@nxp.com>
-L: linux-kernel@vger.kernel.org
+L: netdev@vger.kernel.org
S: Maintained
-F: drivers/staging/fsl-dpaa2/ethernet
+F: drivers/net/ethernet/freescale/dpaa2
DPT_I2O SCSI RAID DRIVER
M: Adaptec OEM Raid Solutions <aacraid@adaptec.com>
--- a/drivers/net/ethernet/freescale/Kconfig
+++ b/drivers/net/ethernet/freescale/Kconfig
@@ -97,4 +97,12 @@ config GIANFAR
source "drivers/net/ethernet/freescale/dpaa/Kconfig"
+config FSL_DPAA2_ETH
+ tristate "Freescale DPAA2 Ethernet"
+ depends on FSL_MC_BUS && FSL_MC_DPIO
+ depends on NETDEVICES && ETHERNET
+ ---help---
+ Ethernet driver for Freescale DPAA2 SoCs, using the
+ Freescale MC bus driver
+
endif # NET_VENDOR_FREESCALE
--- a/drivers/net/ethernet/freescale/Makefile
+++ b/drivers/net/ethernet/freescale/Makefile
@@ -21,3 +21,5 @@ ucc_geth_driver-objs := ucc_geth.o ucc_g
obj-$(CONFIG_FSL_FMAN) += fman/
obj-$(CONFIG_FSL_DPAA_ETH) += dpaa/
+
+obj-$(CONFIG_FSL_DPAA2_ETH) += dpaa2/
--- /dev/null
+++ b/drivers/net/ethernet/freescale/dpaa2/Makefile
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the Freescale DPAA2 Ethernet controller
+#
+
+obj-$(CONFIG_FSL_DPAA2_ETH) += fsl-dpaa2-eth.o
+
+fsl-dpaa2-eth-objs := dpaa2-eth.o dpaa2-ethtool.o dpni.o
+
+# Needed by the tracing framework
+CFLAGS_dpaa2-eth.o := -I$(src)
--- /dev/null
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-trace.h
@@ -0,0 +1,158 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
+/* Copyright 2014-2015 Freescale Semiconductor Inc.
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM dpaa2_eth
+
+#if !defined(_DPAA2_ETH_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _DPAA2_ETH_TRACE_H
+
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include "dpaa2-eth.h"
+#include <linux/tracepoint.h>
+
+#define TR_FMT "[%s] fd: addr=0x%llx, len=%u, off=%u"
+/* trace_printk format for raw buffer event class */
+#define TR_BUF_FMT "[%s] vaddr=%p size=%zu dma_addr=%pad map_size=%zu bpid=%d"
+
+/* This is used to declare a class of events.
+ * individual events of this type will be defined below.
+ */
+
+/* Store details about a frame descriptor */
+DECLARE_EVENT_CLASS(dpaa2_eth_fd,
+ /* Trace function prototype */
+ TP_PROTO(struct net_device *netdev,
+ const struct dpaa2_fd *fd),
+
+ /* Repeat argument list here */
+ TP_ARGS(netdev, fd),
+
+ /* A structure containing the relevant information we want
+ * to record. Declare name and type for each normal element,
+ * name, type and size for arrays. Use __string for variable
+ * length strings.
+ */
+ TP_STRUCT__entry(
+ __field(u64, fd_addr)
+ __field(u32, fd_len)
+ __field(u16, fd_offset)
+ __string(name, netdev->name)
+ ),
+
+ /* The function that assigns values to the above declared
+ * fields
+ */
+ TP_fast_assign(
+ __entry->fd_addr = dpaa2_fd_get_addr(fd);
+ __entry->fd_len = dpaa2_fd_get_len(fd);
+ __entry->fd_offset = dpaa2_fd_get_offset(fd);
+ __assign_str(name, netdev->name);
+ ),
+
+ /* This is what gets printed when the trace event is
+ * triggered.
+ */
+ TP_printk(TR_FMT,
+ __get_str(name),
+ __entry->fd_addr,
+ __entry->fd_len,
+ __entry->fd_offset)
+);
+
+/* Now declare events of the above type. Format is:
+ * DEFINE_EVENT(class, name, proto, args), with proto and args same as for class
+ */
+
+/* Tx (egress) fd */
+DEFINE_EVENT(dpaa2_eth_fd, dpaa2_tx_fd,
+ TP_PROTO(struct net_device *netdev,
+ const struct dpaa2_fd *fd),
+
+ TP_ARGS(netdev, fd)
+);
+
+/* Rx fd */
+DEFINE_EVENT(dpaa2_eth_fd, dpaa2_rx_fd,
+ TP_PROTO(struct net_device *netdev,
+ const struct dpaa2_fd *fd),
+
+ TP_ARGS(netdev, fd)
+);
+
+/* Tx confirmation fd */
+DEFINE_EVENT(dpaa2_eth_fd, dpaa2_tx_conf_fd,
+ TP_PROTO(struct net_device *netdev,
+ const struct dpaa2_fd *fd),
+
+ TP_ARGS(netdev, fd)
+);
+
+/* Log data about raw buffers. Useful for tracing DPBP content. */
+TRACE_EVENT(dpaa2_eth_buf_seed,
+ /* Trace function prototype */
+ TP_PROTO(struct net_device *netdev,
+ /* virtual address and size */
+ void *vaddr,
+ size_t size,
+ /* dma map address and size */
+ dma_addr_t dma_addr,
+ size_t map_size,
+ /* buffer pool id, if relevant */
+ u16 bpid),
+
+ /* Repeat argument list here */
+ TP_ARGS(netdev, vaddr, size, dma_addr, map_size, bpid),
+
+ /* A structure containing the relevant information we want
+ * to record. Declare name and type for each normal element,
+ * name, type and size for arrays. Use __string for variable
+ * length strings.
+ */
+ TP_STRUCT__entry(
+ __field(void *, vaddr)
+ __field(size_t, size)
+ __field(dma_addr_t, dma_addr)
+ __field(size_t, map_size)
+ __field(u16, bpid)
+ __string(name, netdev->name)
+ ),
+
+ /* The function that assigns values to the above declared
+ * fields
+ */
+ TP_fast_assign(
+ __entry->vaddr = vaddr;
+ __entry->size = size;
+ __entry->dma_addr = dma_addr;
+ __entry->map_size = map_size;
+ __entry->bpid = bpid;
+ __assign_str(name, netdev->name);
+ ),
+
+ /* This is what gets printed when the trace event is
+ * triggered.
+ */
+ TP_printk(TR_BUF_FMT,
+ __get_str(name),
+ __entry->vaddr,
+ __entry->size,
+ &__entry->dma_addr,
+ __entry->map_size,
+ __entry->bpid)
+);
+
+/* If only one event of a certain type needs to be declared, use TRACE_EVENT().
+ * The syntax is the same as for DECLARE_EVENT_CLASS().
+ */
+
+#endif /* _DPAA2_ETH_TRACE_H */
+
+/* This must be outside ifdef _DPAA2_ETH_TRACE_H */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE dpaa2-eth-trace
+#include <trace/define_trace.h>
--- /dev/null
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
@@ -0,0 +1,2654 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/* Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2016-2017 NXP
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/etherdevice.h>
+#include <linux/of_net.h>
+#include <linux/interrupt.h>
+#include <linux/msi.h>
+#include <linux/kthread.h>
+#include <linux/iommu.h>
+#include <linux/net_tstamp.h>
+#include <linux/fsl/mc.h>
+
+#include <net/sock.h>
+
+#include "dpaa2-eth.h"
+
+/* CREATE_TRACE_POINTS only needs to be defined once. Other dpa files
+ * using trace events only need to #include <trace/events/sched.h>
+ */
+#define CREATE_TRACE_POINTS
+#include "dpaa2-eth-trace.h"
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Freescale Semiconductor, Inc");
+MODULE_DESCRIPTION("Freescale DPAA2 Ethernet Driver");
+
+static void *dpaa2_iova_to_virt(struct iommu_domain *domain,
+ dma_addr_t iova_addr)
+{
+ phys_addr_t phys_addr;
+
+ phys_addr = domain ? iommu_iova_to_phys(domain, iova_addr) : iova_addr;
+
+ return phys_to_virt(phys_addr);
+}
+
+static void validate_rx_csum(struct dpaa2_eth_priv *priv,
+ u32 fd_status,
+ struct sk_buff *skb)
+{
+ skb_checksum_none_assert(skb);
+
+ /* HW checksum validation is disabled, nothing to do here */
+ if (!(priv->net_dev->features & NETIF_F_RXCSUM))
+ return;
+
+ /* Read checksum validation bits */
+ if (!((fd_status & DPAA2_FAS_L3CV) &&
+ (fd_status & DPAA2_FAS_L4CV)))
+ return;
+
+ /* Inform the stack there's no need to compute L3/L4 csum anymore */
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+}
+
+/* Free a received FD.
+ * Not to be used for Tx conf FDs or on any other paths.
+ */
+static void free_rx_fd(struct dpaa2_eth_priv *priv,
+ const struct dpaa2_fd *fd,
+ void *vaddr)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ dma_addr_t addr = dpaa2_fd_get_addr(fd);
+ u8 fd_format = dpaa2_fd_get_format(fd);
+ struct dpaa2_sg_entry *sgt;
+ void *sg_vaddr;
+ int i;
+
+ /* If single buffer frame, just free the data buffer */
+ if (fd_format == dpaa2_fd_single)
+ goto free_buf;
+ else if (fd_format != dpaa2_fd_sg)
+ /* We don't support any other format */
+ return;
+
+ /* For S/G frames, we first need to free all SG entries
+ * except the first one, which was taken care of already
+ */
+ sgt = vaddr + dpaa2_fd_get_offset(fd);
+ for (i = 1; i < DPAA2_ETH_MAX_SG_ENTRIES; i++) {
+ addr = dpaa2_sg_get_addr(&sgt[i]);
+ sg_vaddr = dpaa2_iova_to_virt(priv->iommu_domain, addr);
+ dma_unmap_single(dev, addr, DPAA2_ETH_RX_BUF_SIZE,
+ DMA_FROM_DEVICE);
+
+ skb_free_frag(sg_vaddr);
+ if (dpaa2_sg_is_final(&sgt[i]))
+ break;
+ }
+
+free_buf:
+ skb_free_frag(vaddr);
+}
+
+/* Build a linear skb based on a single-buffer frame descriptor */
+static struct sk_buff *build_linear_skb(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_channel *ch,
+ const struct dpaa2_fd *fd,
+ void *fd_vaddr)
+{
+ struct sk_buff *skb = NULL;
+ u16 fd_offset = dpaa2_fd_get_offset(fd);
+ u32 fd_length = dpaa2_fd_get_len(fd);
+
+ ch->buf_count--;
+
+ skb = build_skb(fd_vaddr, DPAA2_ETH_SKB_SIZE);
+ if (unlikely(!skb))
+ return NULL;
+
+ skb_reserve(skb, fd_offset);
+ skb_put(skb, fd_length);
+
+ return skb;
+}
+
+/* Build a non linear (fragmented) skb based on a S/G table */
+static struct sk_buff *build_frag_skb(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_channel *ch,
+ struct dpaa2_sg_entry *sgt)
+{
+ struct sk_buff *skb = NULL;
+ struct device *dev = priv->net_dev->dev.parent;
+ void *sg_vaddr;
+ dma_addr_t sg_addr;
+ u16 sg_offset;
+ u32 sg_length;
+ struct page *page, *head_page;
+ int page_offset;
+ int i;
+
+ for (i = 0; i < DPAA2_ETH_MAX_SG_ENTRIES; i++) {
+ struct dpaa2_sg_entry *sge = &sgt[i];
+
+ /* NOTE: We only support SG entries in dpaa2_sg_single format,
+ * but this is the only format we may receive from HW anyway
+ */
+
+ /* Get the address and length from the S/G entry */
+ sg_addr = dpaa2_sg_get_addr(sge);
+ sg_vaddr = dpaa2_iova_to_virt(priv->iommu_domain, sg_addr);
+ dma_unmap_single(dev, sg_addr, DPAA2_ETH_RX_BUF_SIZE,
+ DMA_FROM_DEVICE);
+
+ sg_length = dpaa2_sg_get_len(sge);
+
+ if (i == 0) {
+ /* We build the skb around the first data buffer */
+ skb = build_skb(sg_vaddr, DPAA2_ETH_SKB_SIZE);
+ if (unlikely(!skb)) {
+ /* Free the first SG entry now, since we already
+ * unmapped it and obtained the virtual address
+ */
+ skb_free_frag(sg_vaddr);
+
+ /* We still need to subtract the buffers used
+ * by this FD from our software counter
+ */
+ while (!dpaa2_sg_is_final(&sgt[i]) &&
+ i < DPAA2_ETH_MAX_SG_ENTRIES)
+ i++;
+ break;
+ }
+
+ sg_offset = dpaa2_sg_get_offset(sge);
+ skb_reserve(skb, sg_offset);
+ skb_put(skb, sg_length);
+ } else {
+ /* Rest of the data buffers are stored as skb frags */
+ page = virt_to_page(sg_vaddr);
+ head_page = virt_to_head_page(sg_vaddr);
+
+ /* Offset in page (which may be compound).
+ * Data in subsequent SG entries is stored from the
+ * beginning of the buffer, so we don't need to add the
+ * sg_offset.
+ */
+ page_offset = ((unsigned long)sg_vaddr &
+ (PAGE_SIZE - 1)) +
+ (page_address(page) - page_address(head_page));
+
+ skb_add_rx_frag(skb, i - 1, head_page, page_offset,
+ sg_length, DPAA2_ETH_RX_BUF_SIZE);
+ }
+
+ if (dpaa2_sg_is_final(sge))
+ break;
+ }
+
+ WARN_ONCE(i == DPAA2_ETH_MAX_SG_ENTRIES, "Final bit not set in SGT");
+
+ /* Count all data buffers + SG table buffer */
+ ch->buf_count -= i + 2;
+
+ return skb;
+}
+
+/* Main Rx frame processing routine */
+static void dpaa2_eth_rx(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_channel *ch,
+ const struct dpaa2_fd *fd,
+ struct napi_struct *napi,
+ u16 queue_id)
+{
+ dma_addr_t addr = dpaa2_fd_get_addr(fd);
+ u8 fd_format = dpaa2_fd_get_format(fd);
+ void *vaddr;
+ struct sk_buff *skb;
+ struct rtnl_link_stats64 *percpu_stats;
+ struct dpaa2_eth_drv_stats *percpu_extras;
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpaa2_fas *fas;
+ void *buf_data;
+ u32 status = 0;
+
+ /* Tracing point */
+ trace_dpaa2_rx_fd(priv->net_dev, fd);
+
+ vaddr = dpaa2_iova_to_virt(priv->iommu_domain, addr);
+ dma_unmap_single(dev, addr, DPAA2_ETH_RX_BUF_SIZE, DMA_FROM_DEVICE);
+
+ fas = dpaa2_get_fas(vaddr, false);
+ prefetch(fas);
+ buf_data = vaddr + dpaa2_fd_get_offset(fd);
+ prefetch(buf_data);
+
+ percpu_stats = this_cpu_ptr(priv->percpu_stats);
+ percpu_extras = this_cpu_ptr(priv->percpu_extras);
+
+ if (fd_format == dpaa2_fd_single) {
+ skb = build_linear_skb(priv, ch, fd, vaddr);
+ } else if (fd_format == dpaa2_fd_sg) {
+ skb = build_frag_skb(priv, ch, buf_data);
+ skb_free_frag(vaddr);
+ percpu_extras->rx_sg_frames++;
+ percpu_extras->rx_sg_bytes += dpaa2_fd_get_len(fd);
+ } else {
+ /* We don't support any other format */
+ goto err_frame_format;
+ }
+
+ if (unlikely(!skb))
+ goto err_build_skb;
+
+ prefetch(skb->data);
+
+ /* Get the timestamp value */
+ if (priv->rx_tstamp) {
+ struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb);
+ __le64 *ts = dpaa2_get_ts(vaddr, false);
+ u64 ns;
+
+ memset(shhwtstamps, 0, sizeof(*shhwtstamps));
+
+ ns = DPAA2_PTP_CLK_PERIOD_NS * le64_to_cpup(ts);
+ shhwtstamps->hwtstamp = ns_to_ktime(ns);
+ }
+
+ /* Check if we need to validate the L4 csum */
+ if (likely(dpaa2_fd_get_frc(fd) & DPAA2_FD_FRC_FASV)) {
+ status = le32_to_cpu(fas->status);
+ validate_rx_csum(priv, status, skb);
+ }
+
+ skb->protocol = eth_type_trans(skb, priv->net_dev);
+ skb_record_rx_queue(skb, queue_id);
+
+ percpu_stats->rx_packets++;
+ percpu_stats->rx_bytes += dpaa2_fd_get_len(fd);
+
+ napi_gro_receive(napi, skb);
+
+ return;
+
+err_build_skb:
+ free_rx_fd(priv, fd, vaddr);
+err_frame_format:
+ percpu_stats->rx_dropped++;
+}
+
+/* Consume all frames pull-dequeued into the store. This is the simplest way to
+ * make sure we don't accidentally issue another volatile dequeue which would
+ * overwrite (leak) frames already in the store.
+ *
+ * Observance of NAPI budget is not our concern, leaving that to the caller.
+ */
+static int consume_frames(struct dpaa2_eth_channel *ch)
+{
+ struct dpaa2_eth_priv *priv = ch->priv;
+ struct dpaa2_eth_fq *fq;
+ struct dpaa2_dq *dq;
+ const struct dpaa2_fd *fd;
+ int cleaned = 0;
+ int is_last;
+
+ do {
+ dq = dpaa2_io_store_next(ch->store, &is_last);
+ if (unlikely(!dq)) {
+ /* If we're here, we *must* have placed a
+ * volatile dequeue comnmand, so keep reading through
+ * the store until we get some sort of valid response
+ * token (either a valid frame or an "empty dequeue")
+ */
+ continue;
+ }
+
+ fd = dpaa2_dq_fd(dq);
+ fq = (struct dpaa2_eth_fq *)(uintptr_t)dpaa2_dq_fqd_ctx(dq);
+ fq->stats.frames++;
+
+ fq->consume(priv, ch, fd, &ch->napi, fq->flowid);
+ cleaned++;
+ } while (!is_last);
+
+ return cleaned;
+}
+
+/* Configure the egress frame annotation for timestamp update */
+static void enable_tx_tstamp(struct dpaa2_fd *fd, void *buf_start)
+{
+ struct dpaa2_faead *faead;
+ u32 ctrl, frc;
+
+ /* Mark the egress frame annotation area as valid */
+ frc = dpaa2_fd_get_frc(fd);
+ dpaa2_fd_set_frc(fd, frc | DPAA2_FD_FRC_FAEADV);
+
+ /* Set hardware annotation size */
+ ctrl = dpaa2_fd_get_ctrl(fd);
+ dpaa2_fd_set_ctrl(fd, ctrl | DPAA2_FD_CTRL_ASAL);
+
+ /* enable UPD (update prepanded data) bit in FAEAD field of
+ * hardware frame annotation area
+ */
+ ctrl = DPAA2_FAEAD_A2V | DPAA2_FAEAD_UPDV | DPAA2_FAEAD_UPD;
+ faead = dpaa2_get_faead(buf_start, true);
+ faead->ctrl = cpu_to_le32(ctrl);
+}
+
+/* Create a frame descriptor based on a fragmented skb */
+static int build_sg_fd(struct dpaa2_eth_priv *priv,
+ struct sk_buff *skb,
+ struct dpaa2_fd *fd)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ void *sgt_buf = NULL;
+ dma_addr_t addr;
+ int nr_frags = skb_shinfo(skb)->nr_frags;
+ struct dpaa2_sg_entry *sgt;
+ int i, err;
+ int sgt_buf_size;
+ struct scatterlist *scl, *crt_scl;
+ int num_sg;
+ int num_dma_bufs;
+ struct dpaa2_eth_swa *swa;
+
+ /* Create and map scatterlist.
+ * We don't advertise NETIF_F_FRAGLIST, so skb_to_sgvec() will not have
+ * to go beyond nr_frags+1.
+ * Note: We don't support chained scatterlists
+ */
+ if (unlikely(PAGE_SIZE / sizeof(struct scatterlist) < nr_frags + 1))
+ return -EINVAL;
+
+ scl = kcalloc(nr_frags + 1, sizeof(struct scatterlist), GFP_ATOMIC);
+ if (unlikely(!scl))
+ return -ENOMEM;
+
+ sg_init_table(scl, nr_frags + 1);
+ num_sg = skb_to_sgvec(skb, scl, 0, skb->len);
+ num_dma_bufs = dma_map_sg(dev, scl, num_sg, DMA_BIDIRECTIONAL);
+ if (unlikely(!num_dma_bufs)) {
+ err = -ENOMEM;
+ goto dma_map_sg_failed;
+ }
+
+ /* Prepare the HW SGT structure */
+ sgt_buf_size = priv->tx_data_offset +
+ sizeof(struct dpaa2_sg_entry) * num_dma_bufs;
+ sgt_buf = netdev_alloc_frag(sgt_buf_size + DPAA2_ETH_TX_BUF_ALIGN);
+ if (unlikely(!sgt_buf)) {
+ err = -ENOMEM;
+ goto sgt_buf_alloc_failed;
+ }
+ sgt_buf = PTR_ALIGN(sgt_buf, DPAA2_ETH_TX_BUF_ALIGN);
+ memset(sgt_buf, 0, sgt_buf_size);
+
+ sgt = (struct dpaa2_sg_entry *)(sgt_buf + priv->tx_data_offset);
+
+ /* Fill in the HW SGT structure.
+ *
+ * sgt_buf is zeroed out, so the following fields are implicit
+ * in all sgt entries:
+ * - offset is 0
+ * - format is 'dpaa2_sg_single'
+ */
+ for_each_sg(scl, crt_scl, num_dma_bufs, i) {
+ dpaa2_sg_set_addr(&sgt[i], sg_dma_address(crt_scl));
+ dpaa2_sg_set_len(&sgt[i], sg_dma_len(crt_scl));
+ }
+ dpaa2_sg_set_final(&sgt[i - 1], true);
+
+ /* Store the skb backpointer in the SGT buffer.
+ * Fit the scatterlist and the number of buffers alongside the
+ * skb backpointer in the software annotation area. We'll need
+ * all of them on Tx Conf.
+ */
+ swa = (struct dpaa2_eth_swa *)sgt_buf;
+ swa->skb = skb;
+ swa->scl = scl;
+ swa->num_sg = num_sg;
+ swa->sgt_size = sgt_buf_size;
+
+ /* Separately map the SGT buffer */
+ addr = dma_map_single(dev, sgt_buf, sgt_buf_size, DMA_BIDIRECTIONAL);
+ if (unlikely(dma_mapping_error(dev, addr))) {
+ err = -ENOMEM;
+ goto dma_map_single_failed;
+ }
+ dpaa2_fd_set_offset(fd, priv->tx_data_offset);
+ dpaa2_fd_set_format(fd, dpaa2_fd_sg);
+ dpaa2_fd_set_addr(fd, addr);
+ dpaa2_fd_set_len(fd, skb->len);
+ dpaa2_fd_set_ctrl(fd, FD_CTRL_PTA | FD_CTRL_PTV1);
+
+ if (priv->tx_tstamp && skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)
+ enable_tx_tstamp(fd, sgt_buf);
+
+ return 0;
+
+dma_map_single_failed:
+ skb_free_frag(sgt_buf);
+sgt_buf_alloc_failed:
+ dma_unmap_sg(dev, scl, num_sg, DMA_BIDIRECTIONAL);
+dma_map_sg_failed:
+ kfree(scl);
+ return err;
+}
+
+/* Create a frame descriptor based on a linear skb */
+static int build_single_fd(struct dpaa2_eth_priv *priv,
+ struct sk_buff *skb,
+ struct dpaa2_fd *fd)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ u8 *buffer_start, *aligned_start;
+ struct sk_buff **skbh;
+ dma_addr_t addr;
+
+ buffer_start = skb->data - dpaa2_eth_needed_headroom(priv, skb);
+
+ /* If there's enough room to align the FD address, do it.
+ * It will help hardware optimize accesses.
+ */
+ aligned_start = PTR_ALIGN(buffer_start - DPAA2_ETH_TX_BUF_ALIGN,
+ DPAA2_ETH_TX_BUF_ALIGN);
+ if (aligned_start >= skb->head)
+ buffer_start = aligned_start;
+
+ /* Store a backpointer to the skb at the beginning of the buffer
+ * (in the private data area) such that we can release it
+ * on Tx confirm
+ */
+ skbh = (struct sk_buff **)buffer_start;
+ *skbh = skb;
+
+ addr = dma_map_single(dev, buffer_start,
+ skb_tail_pointer(skb) - buffer_start,
+ DMA_BIDIRECTIONAL);
+ if (unlikely(dma_mapping_error(dev, addr)))
+ return -ENOMEM;
+
+ dpaa2_fd_set_addr(fd, addr);
+ dpaa2_fd_set_offset(fd, (u16)(skb->data - buffer_start));
+ dpaa2_fd_set_len(fd, skb->len);
+ dpaa2_fd_set_format(fd, dpaa2_fd_single);
+ dpaa2_fd_set_ctrl(fd, FD_CTRL_PTA | FD_CTRL_PTV1);
+
+ if (priv->tx_tstamp && skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)
+ enable_tx_tstamp(fd, buffer_start);
+
+ return 0;
+}
+
+/* FD freeing routine on the Tx path
+ *
+ * DMA-unmap and free FD and possibly SGT buffer allocated on Tx. The skb
+ * back-pointed to is also freed.
+ * This can be called either from dpaa2_eth_tx_conf() or on the error path of
+ * dpaa2_eth_tx().
+ */
+static void free_tx_fd(const struct dpaa2_eth_priv *priv,
+ const struct dpaa2_fd *fd)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ dma_addr_t fd_addr;
+ struct sk_buff **skbh, *skb;
+ unsigned char *buffer_start;
+ struct dpaa2_eth_swa *swa;
+ u8 fd_format = dpaa2_fd_get_format(fd);
+
+ fd_addr = dpaa2_fd_get_addr(fd);
+ skbh = dpaa2_iova_to_virt(priv->iommu_domain, fd_addr);
+
+ if (fd_format == dpaa2_fd_single) {
+ skb = *skbh;
+ buffer_start = (unsigned char *)skbh;
+ /* Accessing the skb buffer is safe before dma unmap, because
+ * we didn't map the actual skb shell.
+ */
+ dma_unmap_single(dev, fd_addr,
+ skb_tail_pointer(skb) - buffer_start,
+ DMA_BIDIRECTIONAL);
+ } else if (fd_format == dpaa2_fd_sg) {
+ swa = (struct dpaa2_eth_swa *)skbh;
+ skb = swa->skb;
+
+ /* Unmap the scatterlist */
+ dma_unmap_sg(dev, swa->scl, swa->num_sg, DMA_BIDIRECTIONAL);
+ kfree(swa->scl);
+
+ /* Unmap the SGT buffer */
+ dma_unmap_single(dev, fd_addr, swa->sgt_size,
+ DMA_BIDIRECTIONAL);
+ } else {
+ netdev_dbg(priv->net_dev, "Invalid FD format\n");
+ return;
+ }
+
+ /* Get the timestamp value */
+ if (priv->tx_tstamp && skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) {
+ struct skb_shared_hwtstamps shhwtstamps;
+ __le64 *ts = dpaa2_get_ts(skbh, true);
+ u64 ns;
+
+ memset(&shhwtstamps, 0, sizeof(shhwtstamps));
+
+ ns = DPAA2_PTP_CLK_PERIOD_NS * le64_to_cpup(ts);
+ shhwtstamps.hwtstamp = ns_to_ktime(ns);
+ skb_tstamp_tx(skb, &shhwtstamps);
+ }
+
+ /* Free SGT buffer allocated on tx */
+ if (fd_format != dpaa2_fd_single)
+ skb_free_frag(skbh);
+
+ /* Move on with skb release */
+ dev_kfree_skb(skb);
+}
+
+static netdev_tx_t dpaa2_eth_tx(struct sk_buff *skb, struct net_device *net_dev)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct dpaa2_fd fd;
+ struct rtnl_link_stats64 *percpu_stats;
+ struct dpaa2_eth_drv_stats *percpu_extras;
+ struct dpaa2_eth_fq *fq;
+ u16 queue_mapping;
+ unsigned int needed_headroom;
+ int err, i;
+
+ percpu_stats = this_cpu_ptr(priv->percpu_stats);
+ percpu_extras = this_cpu_ptr(priv->percpu_extras);
+
+ needed_headroom = dpaa2_eth_needed_headroom(priv, skb);
+ if (skb_headroom(skb) < needed_headroom) {
+ struct sk_buff *ns;
+
+ ns = skb_realloc_headroom(skb, needed_headroom);
+ if (unlikely(!ns)) {
+ percpu_stats->tx_dropped++;
+ goto err_alloc_headroom;
+ }
+ percpu_extras->tx_reallocs++;
+
+ if (skb->sk)
+ skb_set_owner_w(ns, skb->sk);
+
+ dev_kfree_skb(skb);
+ skb = ns;
+ }
+
+ /* We'll be holding a back-reference to the skb until Tx Confirmation;
+ * we don't want that overwritten by a concurrent Tx with a cloned skb.
+ */
+ skb = skb_unshare(skb, GFP_ATOMIC);
+ if (unlikely(!skb)) {
+ /* skb_unshare() has already freed the skb */
+ percpu_stats->tx_dropped++;
+ return NETDEV_TX_OK;
+ }
+
+ /* Setup the FD fields */
+ memset(&fd, 0, sizeof(fd));
+
+ if (skb_is_nonlinear(skb)) {
+ err = build_sg_fd(priv, skb, &fd);
+ percpu_extras->tx_sg_frames++;
+ percpu_extras->tx_sg_bytes += skb->len;
+ } else {
+ err = build_single_fd(priv, skb, &fd);
+ }
+
+ if (unlikely(err)) {
+ percpu_stats->tx_dropped++;
+ goto err_build_fd;
+ }
+
+ /* Tracing point */
+ trace_dpaa2_tx_fd(net_dev, &fd);
+
+ /* TxConf FQ selection relies on queue id from the stack.
+ * In case of a forwarded frame from another DPNI interface, we choose
+ * a queue affined to the same core that processed the Rx frame
+ */
+ queue_mapping = skb_get_queue_mapping(skb);
+ fq = &priv->fq[queue_mapping];
+ for (i = 0; i < DPAA2_ETH_ENQUEUE_RETRIES; i++) {
+ err = dpaa2_io_service_enqueue_qd(fq->channel->dpio,
+ priv->tx_qdid, 0,
+ fq->tx_qdbin, &fd);
+ if (err != -EBUSY)
+ break;
+ }
+ percpu_extras->tx_portal_busy += i;
+ if (unlikely(err < 0)) {
+ percpu_stats->tx_errors++;
+ /* Clean up everything, including freeing the skb */
+ free_tx_fd(priv, &fd);
+ } else {
+ percpu_stats->tx_packets++;
+ percpu_stats->tx_bytes += dpaa2_fd_get_len(&fd);
+ }
+
+ return NETDEV_TX_OK;
+
+err_build_fd:
+err_alloc_headroom:
+ dev_kfree_skb(skb);
+
+ return NETDEV_TX_OK;
+}
+
+/* Tx confirmation frame processing routine */
+static void dpaa2_eth_tx_conf(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_channel *ch,
+ const struct dpaa2_fd *fd,
+ struct napi_struct *napi __always_unused,
+ u16 queue_id __always_unused)
+{
+ struct rtnl_link_stats64 *percpu_stats;
+ struct dpaa2_eth_drv_stats *percpu_extras;
+ u32 fd_errors;
+
+ /* Tracing point */
+ trace_dpaa2_tx_conf_fd(priv->net_dev, fd);
+
+ percpu_extras = this_cpu_ptr(priv->percpu_extras);
+ percpu_extras->tx_conf_frames++;
+ percpu_extras->tx_conf_bytes += dpaa2_fd_get_len(fd);
+
+ /* Check frame errors in the FD field */
+ fd_errors = dpaa2_fd_get_ctrl(fd) & DPAA2_FD_TX_ERR_MASK;
+ free_tx_fd(priv, fd);
+
+ if (likely(!fd_errors))
+ return;
+
+ if (net_ratelimit())
+ netdev_dbg(priv->net_dev, "TX frame FD error: 0x%08x\n",
+ fd_errors);
+
+ percpu_stats = this_cpu_ptr(priv->percpu_stats);
+ /* Tx-conf logically pertains to the egress path. */
+ percpu_stats->tx_errors++;
+}
+
+static int set_rx_csum(struct dpaa2_eth_priv *priv, bool enable)
+{
+ int err;
+
+ err = dpni_set_offload(priv->mc_io, 0, priv->mc_token,
+ DPNI_OFF_RX_L3_CSUM, enable);
+ if (err) {
+ netdev_err(priv->net_dev,
+ "dpni_set_offload(RX_L3_CSUM) failed\n");
+ return err;
+ }
+
+ err = dpni_set_offload(priv->mc_io, 0, priv->mc_token,
+ DPNI_OFF_RX_L4_CSUM, enable);
+ if (err) {
+ netdev_err(priv->net_dev,
+ "dpni_set_offload(RX_L4_CSUM) failed\n");
+ return err;
+ }
+
+ return 0;
+}
+
+static int set_tx_csum(struct dpaa2_eth_priv *priv, bool enable)
+{
+ int err;
+
+ err = dpni_set_offload(priv->mc_io, 0, priv->mc_token,
+ DPNI_OFF_TX_L3_CSUM, enable);
+ if (err) {
+ netdev_err(priv->net_dev, "dpni_set_offload(TX_L3_CSUM) failed\n");
+ return err;
+ }
+
+ err = dpni_set_offload(priv->mc_io, 0, priv->mc_token,
+ DPNI_OFF_TX_L4_CSUM, enable);
+ if (err) {
+ netdev_err(priv->net_dev, "dpni_set_offload(TX_L4_CSUM) failed\n");
+ return err;
+ }
+
+ return 0;
+}
+
+/* Free buffers acquired from the buffer pool or which were meant to
+ * be released in the pool
+ */
+static void free_bufs(struct dpaa2_eth_priv *priv, u64 *buf_array, int count)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ void *vaddr;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ vaddr = dpaa2_iova_to_virt(priv->iommu_domain, buf_array[i]);
+ dma_unmap_single(dev, buf_array[i], DPAA2_ETH_RX_BUF_SIZE,
+ DMA_FROM_DEVICE);
+ skb_free_frag(vaddr);
+ }
+}
+
+/* Perform a single release command to add buffers
+ * to the specified buffer pool
+ */
+static int add_bufs(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_channel *ch, u16 bpid)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ u64 buf_array[DPAA2_ETH_BUFS_PER_CMD];
+ void *buf;
+ dma_addr_t addr;
+ int i, err;
+
+ for (i = 0; i < DPAA2_ETH_BUFS_PER_CMD; i++) {
+ /* Allocate buffer visible to WRIOP + skb shared info +
+ * alignment padding
+ */
+ buf = napi_alloc_frag(dpaa2_eth_buf_raw_size(priv));
+ if (unlikely(!buf))
+ goto err_alloc;
+
+ buf = PTR_ALIGN(buf, priv->rx_buf_align);
+
+ addr = dma_map_single(dev, buf, DPAA2_ETH_RX_BUF_SIZE,
+ DMA_FROM_DEVICE);
+ if (unlikely(dma_mapping_error(dev, addr)))
+ goto err_map;
+
+ buf_array[i] = addr;
+
+ /* tracing point */
+ trace_dpaa2_eth_buf_seed(priv->net_dev,
+ buf, dpaa2_eth_buf_raw_size(priv),
+ addr, DPAA2_ETH_RX_BUF_SIZE,
+ bpid);
+ }
+
+release_bufs:
+ /* In case the portal is busy, retry until successful */
+ while ((err = dpaa2_io_service_release(ch->dpio, bpid,
+ buf_array, i)) == -EBUSY)
+ cpu_relax();
+
+ /* If release command failed, clean up and bail out;
+ * not much else we can do about it
+ */
+ if (err) {
+ free_bufs(priv, buf_array, i);
+ return 0;
+ }
+
+ return i;
+
+err_map:
+ skb_free_frag(buf);
+err_alloc:
+ /* If we managed to allocate at least some buffers,
+ * release them to hardware
+ */
+ if (i)
+ goto release_bufs;
+
+ return 0;
+}
+
+static int seed_pool(struct dpaa2_eth_priv *priv, u16 bpid)
+{
+ int i, j;
+ int new_count;
+
+ /* This is the lazy seeding of Rx buffer pools.
+ * dpaa2_add_bufs() is also used on the Rx hotpath and calls
+ * napi_alloc_frag(). The trouble with that is that it in turn ends up
+ * calling this_cpu_ptr(), which mandates execution in atomic context.
+ * Rather than splitting up the code, do a one-off preempt disable.
+ */
+ preempt_disable();
+ for (j = 0; j < priv->num_channels; j++) {
+ for (i = 0; i < DPAA2_ETH_NUM_BUFS;
+ i += DPAA2_ETH_BUFS_PER_CMD) {
+ new_count = add_bufs(priv, priv->channel[j], bpid);
+ priv->channel[j]->buf_count += new_count;
+
+ if (new_count < DPAA2_ETH_BUFS_PER_CMD) {
+ preempt_enable();
+ return -ENOMEM;
+ }
+ }
+ }
+ preempt_enable();
+
+ return 0;
+}
+
+/**
+ * Drain the specified number of buffers from the DPNI's private buffer pool.
+ * @count must not exceeed DPAA2_ETH_BUFS_PER_CMD
+ */
+static void drain_bufs(struct dpaa2_eth_priv *priv, int count)
+{
+ u64 buf_array[DPAA2_ETH_BUFS_PER_CMD];
+ int ret;
+
+ do {
+ ret = dpaa2_io_service_acquire(NULL, priv->bpid,
+ buf_array, count);
+ if (ret < 0) {
+ netdev_err(priv->net_dev, "dpaa2_io_service_acquire() failed\n");
+ return;
+ }
+ free_bufs(priv, buf_array, ret);
+ } while (ret);
+}
+
+static void drain_pool(struct dpaa2_eth_priv *priv)
+{
+ int i;
+
+ drain_bufs(priv, DPAA2_ETH_BUFS_PER_CMD);
+ drain_bufs(priv, 1);
+
+ for (i = 0; i < priv->num_channels; i++)
+ priv->channel[i]->buf_count = 0;
+}
+
+/* Function is called from softirq context only, so we don't need to guard
+ * the access to percpu count
+ */
+static int refill_pool(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_channel *ch,
+ u16 bpid)
+{
+ int new_count;
+
+ if (likely(ch->buf_count >= DPAA2_ETH_REFILL_THRESH))
+ return 0;
+
+ do {
+ new_count = add_bufs(priv, ch, bpid);
+ if (unlikely(!new_count)) {
+ /* Out of memory; abort for now, we'll try later on */
+ break;
+ }
+ ch->buf_count += new_count;
+ } while (ch->buf_count < DPAA2_ETH_NUM_BUFS);
+
+ if (unlikely(ch->buf_count < DPAA2_ETH_NUM_BUFS))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int pull_channel(struct dpaa2_eth_channel *ch)
+{
+ int err;
+ int dequeues = -1;
+
+ /* Retry while portal is busy */
+ do {
+ err = dpaa2_io_service_pull_channel(ch->dpio, ch->ch_id,
+ ch->store);
+ dequeues++;
+ cpu_relax();
+ } while (err == -EBUSY);
+
+ ch->stats.dequeue_portal_busy += dequeues;
+ if (unlikely(err))
+ ch->stats.pull_err++;
+
+ return err;
+}
+
+/* NAPI poll routine
+ *
+ * Frames are dequeued from the QMan channel associated with this NAPI context.
+ * Rx, Tx confirmation and (if configured) Rx error frames all count
+ * towards the NAPI budget.
+ */
+static int dpaa2_eth_poll(struct napi_struct *napi, int budget)
+{
+ struct dpaa2_eth_channel *ch;
+ int cleaned = 0, store_cleaned;
+ struct dpaa2_eth_priv *priv;
+ int err;
+
+ ch = container_of(napi, struct dpaa2_eth_channel, napi);
+ priv = ch->priv;
+
+ while (cleaned < budget) {
+ err = pull_channel(ch);
+ if (unlikely(err))
+ break;
+
+ /* Refill pool if appropriate */
+ refill_pool(priv, ch, priv->bpid);
+
+ store_cleaned = consume_frames(ch);
+ cleaned += store_cleaned;
+
+ /* If we have enough budget left for a full store,
+ * try a new pull dequeue, otherwise we're done here
+ */
+ if (store_cleaned == 0 ||
+ cleaned > budget - DPAA2_ETH_STORE_SIZE)
+ break;
+ }
+
+ if (cleaned < budget && napi_complete_done(napi, cleaned)) {
+ /* Re-enable data available notifications */
+ do {
+ err = dpaa2_io_service_rearm(ch->dpio, &ch->nctx);
+ cpu_relax();
+ } while (err == -EBUSY);
+ WARN_ONCE(err, "CDAN notifications rearm failed on core %d",
+ ch->nctx.desired_cpu);
+ }
+
+ ch->stats.frames += cleaned;
+
+ return cleaned;
+}
+
+static void enable_ch_napi(struct dpaa2_eth_priv *priv)
+{
+ struct dpaa2_eth_channel *ch;
+ int i;
+
+ for (i = 0; i < priv->num_channels; i++) {
+ ch = priv->channel[i];
+ napi_enable(&ch->napi);
+ }
+}
+
+static void disable_ch_napi(struct dpaa2_eth_priv *priv)
+{
+ struct dpaa2_eth_channel *ch;
+ int i;
+
+ for (i = 0; i < priv->num_channels; i++) {
+ ch = priv->channel[i];
+ napi_disable(&ch->napi);
+ }
+}
+
+static int link_state_update(struct dpaa2_eth_priv *priv)
+{
+ struct dpni_link_state state;
+ int err;
+
+ err = dpni_get_link_state(priv->mc_io, 0, priv->mc_token, &state);
+ if (unlikely(err)) {
+ netdev_err(priv->net_dev,
+ "dpni_get_link_state() failed\n");
+ return err;
+ }
+
+ /* Chech link state; speed / duplex changes are not treated yet */
+ if (priv->link_state.up == state.up)
+ return 0;
+
+ priv->link_state = state;
+ if (state.up) {
+ netif_carrier_on(priv->net_dev);
+ netif_tx_start_all_queues(priv->net_dev);
+ } else {
+ netif_tx_stop_all_queues(priv->net_dev);
+ netif_carrier_off(priv->net_dev);
+ }
+
+ netdev_info(priv->net_dev, "Link Event: state %s\n",
+ state.up ? "up" : "down");
+
+ return 0;
+}
+
+static int dpaa2_eth_open(struct net_device *net_dev)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ int err;
+
+ err = seed_pool(priv, priv->bpid);
+ if (err) {
+ /* Not much to do; the buffer pool, though not filled up,
+ * may still contain some buffers which would enable us
+ * to limp on.
+ */
+ netdev_err(net_dev, "Buffer seeding failed for DPBP %d (bpid=%d)\n",
+ priv->dpbp_dev->obj_desc.id, priv->bpid);
+ }
+
+ /* We'll only start the txqs when the link is actually ready; make sure
+ * we don't race against the link up notification, which may come
+ * immediately after dpni_enable();
+ */
+ netif_tx_stop_all_queues(net_dev);
+ enable_ch_napi(priv);
+ /* Also, explicitly set carrier off, otherwise netif_carrier_ok() will
+ * return true and cause 'ip link show' to report the LOWER_UP flag,
+ * even though the link notification wasn't even received.
+ */
+ netif_carrier_off(net_dev);
+
+ err = dpni_enable(priv->mc_io, 0, priv->mc_token);
+ if (err < 0) {
+ netdev_err(net_dev, "dpni_enable() failed\n");
+ goto enable_err;
+ }
+
+ /* If the DPMAC object has already processed the link up interrupt,
+ * we have to learn the link state ourselves.
+ */
+ err = link_state_update(priv);
+ if (err < 0) {
+ netdev_err(net_dev, "Can't update link state\n");
+ goto link_state_err;
+ }
+
+ return 0;
+
+link_state_err:
+enable_err:
+ disable_ch_napi(priv);
+ drain_pool(priv);
+ return err;
+}
+
+/* The DPIO store must be empty when we call this,
+ * at the end of every NAPI cycle.
+ */
+static u32 drain_channel(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_channel *ch)
+{
+ u32 drained = 0, total = 0;
+
+ do {
+ pull_channel(ch);
+ drained = consume_frames(ch);
+ total += drained;
+ } while (drained);
+
+ return total;
+}
+
+static u32 drain_ingress_frames(struct dpaa2_eth_priv *priv)
+{
+ struct dpaa2_eth_channel *ch;
+ int i;
+ u32 drained = 0;
+
+ for (i = 0; i < priv->num_channels; i++) {
+ ch = priv->channel[i];
+ drained += drain_channel(priv, ch);
+ }
+
+ return drained;
+}
+
+static int dpaa2_eth_stop(struct net_device *net_dev)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ int dpni_enabled;
+ int retries = 10;
+ u32 drained;
+
+ netif_tx_stop_all_queues(net_dev);
+ netif_carrier_off(net_dev);
+
+ /* Loop while dpni_disable() attempts to drain the egress FQs
+ * and confirm them back to us.
+ */
+ do {
+ dpni_disable(priv->mc_io, 0, priv->mc_token);
+ dpni_is_enabled(priv->mc_io, 0, priv->mc_token, &dpni_enabled);
+ if (dpni_enabled)
+ /* Allow the hardware some slack */
+ msleep(100);
+ } while (dpni_enabled && --retries);
+ if (!retries) {
+ netdev_warn(net_dev, "Retry count exceeded disabling DPNI\n");
+ /* Must go on and disable NAPI nonetheless, so we don't crash at
+ * the next "ifconfig up"
+ */
+ }
+
+ /* Wait for NAPI to complete on every core and disable it.
+ * In particular, this will also prevent NAPI from being rescheduled if
+ * a new CDAN is serviced, effectively discarding the CDAN. We therefore
+ * don't even need to disarm the channels, except perhaps for the case
+ * of a huge coalescing value.
+ */
+ disable_ch_napi(priv);
+
+ /* Manually drain the Rx and TxConf queues */
+ drained = drain_ingress_frames(priv);
+ if (drained)
+ netdev_dbg(net_dev, "Drained %d frames.\n", drained);
+
+ /* Empty the buffer pool */
+ drain_pool(priv);
+
+ return 0;
+}
+
+static int dpaa2_eth_set_addr(struct net_device *net_dev, void *addr)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct device *dev = net_dev->dev.parent;
+ int err;
+
+ err = eth_mac_addr(net_dev, addr);
+ if (err < 0) {
+ dev_err(dev, "eth_mac_addr() failed (%d)\n", err);
+ return err;
+ }
+
+ err = dpni_set_primary_mac_addr(priv->mc_io, 0, priv->mc_token,
+ net_dev->dev_addr);
+ if (err) {
+ dev_err(dev, "dpni_set_primary_mac_addr() failed (%d)\n", err);
+ return err;
+ }
+
+ return 0;
+}
+
+/** Fill in counters maintained by the GPP driver. These may be different from
+ * the hardware counters obtained by ethtool.
+ */
+static void dpaa2_eth_get_stats(struct net_device *net_dev,
+ struct rtnl_link_stats64 *stats)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct rtnl_link_stats64 *percpu_stats;
+ u64 *cpustats;
+ u64 *netstats = (u64 *)stats;
+ int i, j;
+ int num = sizeof(struct rtnl_link_stats64) / sizeof(u64);
+
+ for_each_possible_cpu(i) {
+ percpu_stats = per_cpu_ptr(priv->percpu_stats, i);
+ cpustats = (u64 *)percpu_stats;
+ for (j = 0; j < num; j++)
+ netstats[j] += cpustats[j];
+ }
+}
+
+/* Copy mac unicast addresses from @net_dev to @priv.
+ * Its sole purpose is to make dpaa2_eth_set_rx_mode() more readable.
+ */
+static void add_uc_hw_addr(const struct net_device *net_dev,
+ struct dpaa2_eth_priv *priv)
+{
+ struct netdev_hw_addr *ha;
+ int err;
+
+ netdev_for_each_uc_addr(ha, net_dev) {
+ err = dpni_add_mac_addr(priv->mc_io, 0, priv->mc_token,
+ ha->addr);
+ if (err)
+ netdev_warn(priv->net_dev,
+ "Could not add ucast MAC %pM to the filtering table (err %d)\n",
+ ha->addr, err);
+ }
+}
+
+/* Copy mac multicast addresses from @net_dev to @priv
+ * Its sole purpose is to make dpaa2_eth_set_rx_mode() more readable.
+ */
+static void add_mc_hw_addr(const struct net_device *net_dev,
+ struct dpaa2_eth_priv *priv)
+{
+ struct netdev_hw_addr *ha;
+ int err;
+
+ netdev_for_each_mc_addr(ha, net_dev) {
+ err = dpni_add_mac_addr(priv->mc_io, 0, priv->mc_token,
+ ha->addr);
+ if (err)
+ netdev_warn(priv->net_dev,
+ "Could not add mcast MAC %pM to the filtering table (err %d)\n",
+ ha->addr, err);
+ }
+}
+
+static void dpaa2_eth_set_rx_mode(struct net_device *net_dev)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ int uc_count = netdev_uc_count(net_dev);
+ int mc_count = netdev_mc_count(net_dev);
+ u8 max_mac = priv->dpni_attrs.mac_filter_entries;
+ u32 options = priv->dpni_attrs.options;
+ u16 mc_token = priv->mc_token;
+ struct fsl_mc_io *mc_io = priv->mc_io;
+ int err;
+
+ /* Basic sanity checks; these probably indicate a misconfiguration */
+ if (options & DPNI_OPT_NO_MAC_FILTER && max_mac != 0)
+ netdev_info(net_dev,
+ "mac_filter_entries=%d, DPNI_OPT_NO_MAC_FILTER option must be disabled\n",
+ max_mac);
+
+ /* Force promiscuous if the uc or mc counts exceed our capabilities. */
+ if (uc_count > max_mac) {
+ netdev_info(net_dev,
+ "Unicast addr count reached %d, max allowed is %d; forcing promisc\n",
+ uc_count, max_mac);
+ goto force_promisc;
+ }
+ if (mc_count + uc_count > max_mac) {
+ netdev_info(net_dev,
+ "Unicast + multicast addr count reached %d, max allowed is %d; forcing promisc\n",
+ uc_count + mc_count, max_mac);
+ goto force_mc_promisc;
+ }
+
+ /* Adjust promisc settings due to flag combinations */
+ if (net_dev->flags & IFF_PROMISC)
+ goto force_promisc;
+ if (net_dev->flags & IFF_ALLMULTI) {
+ /* First, rebuild unicast filtering table. This should be done
+ * in promisc mode, in order to avoid frame loss while we
+ * progressively add entries to the table.
+ * We don't know whether we had been in promisc already, and
+ * making an MC call to find out is expensive; so set uc promisc
+ * nonetheless.
+ */
+ err = dpni_set_unicast_promisc(mc_io, 0, mc_token, 1);
+ if (err)
+ netdev_warn(net_dev, "Can't set uc promisc\n");
+
+ /* Actual uc table reconstruction. */
+ err = dpni_clear_mac_filters(mc_io, 0, mc_token, 1, 0);
+ if (err)
+ netdev_warn(net_dev, "Can't clear uc filters\n");
+ add_uc_hw_addr(net_dev, priv);
+
+ /* Finally, clear uc promisc and set mc promisc as requested. */
+ err = dpni_set_unicast_promisc(mc_io, 0, mc_token, 0);
+ if (err)
+ netdev_warn(net_dev, "Can't clear uc promisc\n");
+ goto force_mc_promisc;
+ }
+
+ /* Neither unicast, nor multicast promisc will be on... eventually.
+ * For now, rebuild mac filtering tables while forcing both of them on.
+ */
+ err = dpni_set_unicast_promisc(mc_io, 0, mc_token, 1);
+ if (err)
+ netdev_warn(net_dev, "Can't set uc promisc (%d)\n", err);
+ err = dpni_set_multicast_promisc(mc_io, 0, mc_token, 1);
+ if (err)
+ netdev_warn(net_dev, "Can't set mc promisc (%d)\n", err);
+
+ /* Actual mac filtering tables reconstruction */
+ err = dpni_clear_mac_filters(mc_io, 0, mc_token, 1, 1);
+ if (err)
+ netdev_warn(net_dev, "Can't clear mac filters\n");
+ add_mc_hw_addr(net_dev, priv);
+ add_uc_hw_addr(net_dev, priv);
+
+ /* Now we can clear both ucast and mcast promisc, without risking
+ * to drop legitimate frames anymore.
+ */
+ err = dpni_set_unicast_promisc(mc_io, 0, mc_token, 0);
+ if (err)
+ netdev_warn(net_dev, "Can't clear ucast promisc\n");
+ err = dpni_set_multicast_promisc(mc_io, 0, mc_token, 0);
+ if (err)
+ netdev_warn(net_dev, "Can't clear mcast promisc\n");
+
+ return;
+
+force_promisc:
+ err = dpni_set_unicast_promisc(mc_io, 0, mc_token, 1);
+ if (err)
+ netdev_warn(net_dev, "Can't set ucast promisc\n");
+force_mc_promisc:
+ err = dpni_set_multicast_promisc(mc_io, 0, mc_token, 1);
+ if (err)
+ netdev_warn(net_dev, "Can't set mcast promisc\n");
+}
+
+static int dpaa2_eth_set_features(struct net_device *net_dev,
+ netdev_features_t features)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ netdev_features_t changed = features ^ net_dev->features;
+ bool enable;
+ int err;
+
+ if (changed & NETIF_F_RXCSUM) {
+ enable = !!(features & NETIF_F_RXCSUM);
+ err = set_rx_csum(priv, enable);
+ if (err)
+ return err;
+ }
+
+ if (changed & (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM)) {
+ enable = !!(features & (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM));
+ err = set_tx_csum(priv, enable);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+static int dpaa2_eth_ts_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(dev);
+ struct hwtstamp_config config;
+
+ if (copy_from_user(&config, rq->ifr_data, sizeof(config)))
+ return -EFAULT;
+
+ switch (config.tx_type) {
+ case HWTSTAMP_TX_OFF:
+ priv->tx_tstamp = false;
+ break;
+ case HWTSTAMP_TX_ON:
+ priv->tx_tstamp = true;
+ break;
+ default:
+ return -ERANGE;
+ }
+
+ if (config.rx_filter == HWTSTAMP_FILTER_NONE) {
+ priv->rx_tstamp = false;
+ } else {
+ priv->rx_tstamp = true;
+ /* TS is set for all frame types, not only those requested */
+ config.rx_filter = HWTSTAMP_FILTER_ALL;
+ }
+
+ return copy_to_user(rq->ifr_data, &config, sizeof(config)) ?
+ -EFAULT : 0;
+}
+
+static int dpaa2_eth_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ if (cmd == SIOCSHWTSTAMP)
+ return dpaa2_eth_ts_ioctl(dev, rq, cmd);
+
+ return -EINVAL;
+}
+
+static const struct net_device_ops dpaa2_eth_ops = {
+ .ndo_open = dpaa2_eth_open,
+ .ndo_start_xmit = dpaa2_eth_tx,
+ .ndo_stop = dpaa2_eth_stop,
+ .ndo_set_mac_address = dpaa2_eth_set_addr,
+ .ndo_get_stats64 = dpaa2_eth_get_stats,
+ .ndo_set_rx_mode = dpaa2_eth_set_rx_mode,
+ .ndo_set_features = dpaa2_eth_set_features,
+ .ndo_do_ioctl = dpaa2_eth_ioctl,
+};
+
+static void cdan_cb(struct dpaa2_io_notification_ctx *ctx)
+{
+ struct dpaa2_eth_channel *ch;
+
+ ch = container_of(ctx, struct dpaa2_eth_channel, nctx);
+
+ /* Update NAPI statistics */
+ ch->stats.cdan++;
+
+ napi_schedule_irqoff(&ch->napi);
+}
+
+/* Allocate and configure a DPCON object */
+static struct fsl_mc_device *setup_dpcon(struct dpaa2_eth_priv *priv)
+{
+ struct fsl_mc_device *dpcon;
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpcon_attr attrs;
+ int err;
+
+ err = fsl_mc_object_allocate(to_fsl_mc_device(dev),
+ FSL_MC_POOL_DPCON, &dpcon);
+ if (err) {
+ dev_info(dev, "Not enough DPCONs, will go on as-is\n");
+ return NULL;
+ }
+
+ err = dpcon_open(priv->mc_io, 0, dpcon->obj_desc.id, &dpcon->mc_handle);
+ if (err) {
+ dev_err(dev, "dpcon_open() failed\n");
+ goto free;
+ }
+
+ err = dpcon_reset(priv->mc_io, 0, dpcon->mc_handle);
+ if (err) {
+ dev_err(dev, "dpcon_reset() failed\n");
+ goto close;
+ }
+
+ err = dpcon_get_attributes(priv->mc_io, 0, dpcon->mc_handle, &attrs);
+ if (err) {
+ dev_err(dev, "dpcon_get_attributes() failed\n");
+ goto close;
+ }
+
+ err = dpcon_enable(priv->mc_io, 0, dpcon->mc_handle);
+ if (err) {
+ dev_err(dev, "dpcon_enable() failed\n");
+ goto close;
+ }
+
+ return dpcon;
+
+close:
+ dpcon_close(priv->mc_io, 0, dpcon->mc_handle);
+free:
+ fsl_mc_object_free(dpcon);
+
+ return NULL;
+}
+
+static void free_dpcon(struct dpaa2_eth_priv *priv,
+ struct fsl_mc_device *dpcon)
+{
+ dpcon_disable(priv->mc_io, 0, dpcon->mc_handle);
+ dpcon_close(priv->mc_io, 0, dpcon->mc_handle);
+ fsl_mc_object_free(dpcon);
+}
+
+static struct dpaa2_eth_channel *
+alloc_channel(struct dpaa2_eth_priv *priv)
+{
+ struct dpaa2_eth_channel *channel;
+ struct dpcon_attr attr;
+ struct device *dev = priv->net_dev->dev.parent;
+ int err;
+
+ channel = kzalloc(sizeof(*channel), GFP_KERNEL);
+ if (!channel)
+ return NULL;
+
+ channel->dpcon = setup_dpcon(priv);
+ if (!channel->dpcon)
+ goto err_setup;
+
+ err = dpcon_get_attributes(priv->mc_io, 0, channel->dpcon->mc_handle,
+ &attr);
+ if (err) {
+ dev_err(dev, "dpcon_get_attributes() failed\n");
+ goto err_get_attr;
+ }
+
+ channel->dpcon_id = attr.id;
+ channel->ch_id = attr.qbman_ch_id;
+ channel->priv = priv;
+
+ return channel;
+
+err_get_attr:
+ free_dpcon(priv, channel->dpcon);
+err_setup:
+ kfree(channel);
+ return NULL;
+}
+
+static void free_channel(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_channel *channel)
+{
+ free_dpcon(priv, channel->dpcon);
+ kfree(channel);
+}
+
+/* DPIO setup: allocate and configure QBMan channels, setup core affinity
+ * and register data availability notifications
+ */
+static int setup_dpio(struct dpaa2_eth_priv *priv)
+{
+ struct dpaa2_io_notification_ctx *nctx;
+ struct dpaa2_eth_channel *channel;
+ struct dpcon_notification_cfg dpcon_notif_cfg;
+ struct device *dev = priv->net_dev->dev.parent;
+ int i, err;
+
+ /* We want the ability to spread ingress traffic (RX, TX conf) to as
+ * many cores as possible, so we need one channel for each core
+ * (unless there's fewer queues than cores, in which case the extra
+ * channels would be wasted).
+ * Allocate one channel per core and register it to the core's
+ * affine DPIO. If not enough channels are available for all cores
+ * or if some cores don't have an affine DPIO, there will be no
+ * ingress frame processing on those cores.
+ */
+ cpumask_clear(&priv->dpio_cpumask);
+ for_each_online_cpu(i) {
+ /* Try to allocate a channel */
+ channel = alloc_channel(priv);
+ if (!channel) {
+ dev_info(dev,
+ "No affine channel for cpu %d and above\n", i);
+ err = -ENODEV;
+ goto err_alloc_ch;
+ }
+
+ priv->channel[priv->num_channels] = channel;
+
+ nctx = &channel->nctx;
+ nctx->is_cdan = 1;
+ nctx->cb = cdan_cb;
+ nctx->id = channel->ch_id;
+ nctx->desired_cpu = i;
+
+ /* Register the new context */
+ channel->dpio = dpaa2_io_service_select(i);
+ err = dpaa2_io_service_register(channel->dpio, nctx);
+ if (err) {
+ dev_dbg(dev, "No affine DPIO for cpu %d\n", i);
+ /* If no affine DPIO for this core, there's probably
+ * none available for next cores either. Signal we want
+ * to retry later, in case the DPIO devices weren't
+ * probed yet.
+ */
+ err = -EPROBE_DEFER;
+ goto err_service_reg;
+ }
+
+ /* Register DPCON notification with MC */
+ dpcon_notif_cfg.dpio_id = nctx->dpio_id;
+ dpcon_notif_cfg.priority = 0;
+ dpcon_notif_cfg.user_ctx = nctx->qman64;
+ err = dpcon_set_notification(priv->mc_io, 0,
+ channel->dpcon->mc_handle,
+ &dpcon_notif_cfg);
+ if (err) {
+ dev_err(dev, "dpcon_set_notification failed()\n");
+ goto err_set_cdan;
+ }
+
+ /* If we managed to allocate a channel and also found an affine
+ * DPIO for this core, add it to the final mask
+ */
+ cpumask_set_cpu(i, &priv->dpio_cpumask);
+ priv->num_channels++;
+
+ /* Stop if we already have enough channels to accommodate all
+ * RX and TX conf queues
+ */
+ if (priv->num_channels == dpaa2_eth_queue_count(priv))
+ break;
+ }
+
+ return 0;
+
+err_set_cdan:
+ dpaa2_io_service_deregister(channel->dpio, nctx);
+err_service_reg:
+ free_channel(priv, channel);
+err_alloc_ch:
+ if (cpumask_empty(&priv->dpio_cpumask)) {
+ dev_err(dev, "No cpu with an affine DPIO/DPCON\n");
+ return err;
+ }
+
+ dev_info(dev, "Cores %*pbl available for processing ingress traffic\n",
+ cpumask_pr_args(&priv->dpio_cpumask));
+
+ return 0;
+}
+
+static void free_dpio(struct dpaa2_eth_priv *priv)
+{
+ int i;
+ struct dpaa2_eth_channel *ch;
+
+ /* deregister CDAN notifications and free channels */
+ for (i = 0; i < priv->num_channels; i++) {
+ ch = priv->channel[i];
+ dpaa2_io_service_deregister(ch->dpio, &ch->nctx);
+ free_channel(priv, ch);
+ }
+}
+
+static struct dpaa2_eth_channel *get_affine_channel(struct dpaa2_eth_priv *priv,
+ int cpu)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ int i;
+
+ for (i = 0; i < priv->num_channels; i++)
+ if (priv->channel[i]->nctx.desired_cpu == cpu)
+ return priv->channel[i];
+
+ /* We should never get here. Issue a warning and return
+ * the first channel, because it's still better than nothing
+ */
+ dev_warn(dev, "No affine channel found for cpu %d\n", cpu);
+
+ return priv->channel[0];
+}
+
+static void set_fq_affinity(struct dpaa2_eth_priv *priv)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ struct cpumask xps_mask;
+ struct dpaa2_eth_fq *fq;
+ int rx_cpu, txc_cpu;
+ int i, err;
+
+ /* For each FQ, pick one channel/CPU to deliver frames to.
+ * This may well change at runtime, either through irqbalance or
+ * through direct user intervention.
+ */
+ rx_cpu = txc_cpu = cpumask_first(&priv->dpio_cpumask);
+
+ for (i = 0; i < priv->num_fqs; i++) {
+ fq = &priv->fq[i];
+ switch (fq->type) {
+ case DPAA2_RX_FQ:
+ fq->target_cpu = rx_cpu;
+ rx_cpu = cpumask_next(rx_cpu, &priv->dpio_cpumask);
+ if (rx_cpu >= nr_cpu_ids)
+ rx_cpu = cpumask_first(&priv->dpio_cpumask);
+ break;
+ case DPAA2_TX_CONF_FQ:
+ fq->target_cpu = txc_cpu;
+
+ /* Tell the stack to affine to txc_cpu the Tx queue
+ * associated with the confirmation one
+ */
+ cpumask_clear(&xps_mask);
+ cpumask_set_cpu(txc_cpu, &xps_mask);
+ err = netif_set_xps_queue(priv->net_dev, &xps_mask,
+ fq->flowid);
+ if (err)
+ dev_err(dev, "Error setting XPS queue\n");
+
+ txc_cpu = cpumask_next(txc_cpu, &priv->dpio_cpumask);
+ if (txc_cpu >= nr_cpu_ids)
+ txc_cpu = cpumask_first(&priv->dpio_cpumask);
+ break;
+ default:
+ dev_err(dev, "Unknown FQ type: %d\n", fq->type);
+ }
+ fq->channel = get_affine_channel(priv, fq->target_cpu);
+ }
+}
+
+static void setup_fqs(struct dpaa2_eth_priv *priv)
+{
+ int i;
+
+ /* We have one TxConf FQ per Tx flow.
+ * The number of Tx and Rx queues is the same.
+ * Tx queues come first in the fq array.
+ */
+ for (i = 0; i < dpaa2_eth_queue_count(priv); i++) {
+ priv->fq[priv->num_fqs].type = DPAA2_TX_CONF_FQ;
+ priv->fq[priv->num_fqs].consume = dpaa2_eth_tx_conf;
+ priv->fq[priv->num_fqs++].flowid = (u16)i;
+ }
+
+ for (i = 0; i < dpaa2_eth_queue_count(priv); i++) {
+ priv->fq[priv->num_fqs].type = DPAA2_RX_FQ;
+ priv->fq[priv->num_fqs].consume = dpaa2_eth_rx;
+ priv->fq[priv->num_fqs++].flowid = (u16)i;
+ }
+
+ /* For each FQ, decide on which core to process incoming frames */
+ set_fq_affinity(priv);
+}
+
+/* Allocate and configure one buffer pool for each interface */
+static int setup_dpbp(struct dpaa2_eth_priv *priv)
+{
+ int err;
+ struct fsl_mc_device *dpbp_dev;
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpbp_attr dpbp_attrs;
+
+ err = fsl_mc_object_allocate(to_fsl_mc_device(dev), FSL_MC_POOL_DPBP,
+ &dpbp_dev);
+ if (err) {
+ dev_err(dev, "DPBP device allocation failed\n");
+ return err;
+ }
+
+ priv->dpbp_dev = dpbp_dev;
+
+ err = dpbp_open(priv->mc_io, 0, priv->dpbp_dev->obj_desc.id,
+ &dpbp_dev->mc_handle);
+ if (err) {
+ dev_err(dev, "dpbp_open() failed\n");
+ goto err_open;
+ }
+
+ err = dpbp_reset(priv->mc_io, 0, dpbp_dev->mc_handle);
+ if (err) {
+ dev_err(dev, "dpbp_reset() failed\n");
+ goto err_reset;
+ }
+
+ err = dpbp_enable(priv->mc_io, 0, dpbp_dev->mc_handle);
+ if (err) {
+ dev_err(dev, "dpbp_enable() failed\n");
+ goto err_enable;
+ }
+
+ err = dpbp_get_attributes(priv->mc_io, 0, dpbp_dev->mc_handle,
+ &dpbp_attrs);
+ if (err) {
+ dev_err(dev, "dpbp_get_attributes() failed\n");
+ goto err_get_attr;
+ }
+ priv->bpid = dpbp_attrs.bpid;
+
+ return 0;
+
+err_get_attr:
+ dpbp_disable(priv->mc_io, 0, dpbp_dev->mc_handle);
+err_enable:
+err_reset:
+ dpbp_close(priv->mc_io, 0, dpbp_dev->mc_handle);
+err_open:
+ fsl_mc_object_free(dpbp_dev);
+
+ return err;
+}
+
+static void free_dpbp(struct dpaa2_eth_priv *priv)
+{
+ drain_pool(priv);
+ dpbp_disable(priv->mc_io, 0, priv->dpbp_dev->mc_handle);
+ dpbp_close(priv->mc_io, 0, priv->dpbp_dev->mc_handle);
+ fsl_mc_object_free(priv->dpbp_dev);
+}
+
+static int set_buffer_layout(struct dpaa2_eth_priv *priv)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpni_buffer_layout buf_layout = {0};
+ int err;
+
+ /* We need to check for WRIOP version 1.0.0, but depending on the MC
+ * version, this number is not always provided correctly on rev1.
+ * We need to check for both alternatives in this situation.
+ */
+ if (priv->dpni_attrs.wriop_version == DPAA2_WRIOP_VERSION(0, 0, 0) ||
+ priv->dpni_attrs.wriop_version == DPAA2_WRIOP_VERSION(1, 0, 0))
+ priv->rx_buf_align = DPAA2_ETH_RX_BUF_ALIGN_REV1;
+ else
+ priv->rx_buf_align = DPAA2_ETH_RX_BUF_ALIGN;
+
+ /* tx buffer */
+ buf_layout.private_data_size = DPAA2_ETH_SWA_SIZE;
+ buf_layout.pass_timestamp = true;
+ buf_layout.options = DPNI_BUF_LAYOUT_OPT_PRIVATE_DATA_SIZE |
+ DPNI_BUF_LAYOUT_OPT_TIMESTAMP;
+ err = dpni_set_buffer_layout(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_TX, &buf_layout);
+ if (err) {
+ dev_err(dev, "dpni_set_buffer_layout(TX) failed\n");
+ return err;
+ }
+
+ /* tx-confirm buffer */
+ buf_layout.options = DPNI_BUF_LAYOUT_OPT_TIMESTAMP;
+ err = dpni_set_buffer_layout(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_TX_CONFIRM, &buf_layout);
+ if (err) {
+ dev_err(dev, "dpni_set_buffer_layout(TX_CONF) failed\n");
+ return err;
+ }
+
+ /* Now that we've set our tx buffer layout, retrieve the minimum
+ * required tx data offset.
+ */
+ err = dpni_get_tx_data_offset(priv->mc_io, 0, priv->mc_token,
+ &priv->tx_data_offset);
+ if (err) {
+ dev_err(dev, "dpni_get_tx_data_offset() failed\n");
+ return err;
+ }
+
+ if ((priv->tx_data_offset % 64) != 0)
+ dev_warn(dev, "Tx data offset (%d) not a multiple of 64B\n",
+ priv->tx_data_offset);
+
+ /* rx buffer */
+ buf_layout.pass_frame_status = true;
+ buf_layout.pass_parser_result = true;
+ buf_layout.data_align = priv->rx_buf_align;
+ buf_layout.data_head_room = dpaa2_eth_rx_head_room(priv);
+ buf_layout.private_data_size = 0;
+ buf_layout.options = DPNI_BUF_LAYOUT_OPT_PARSER_RESULT |
+ DPNI_BUF_LAYOUT_OPT_FRAME_STATUS |
+ DPNI_BUF_LAYOUT_OPT_DATA_ALIGN |
+ DPNI_BUF_LAYOUT_OPT_DATA_HEAD_ROOM |
+ DPNI_BUF_LAYOUT_OPT_TIMESTAMP;
+ err = dpni_set_buffer_layout(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_RX, &buf_layout);
+ if (err) {
+ dev_err(dev, "dpni_set_buffer_layout(RX) failed\n");
+ return err;
+ }
+
+ return 0;
+}
+
+/* Configure the DPNI object this interface is associated with */
+static int setup_dpni(struct fsl_mc_device *ls_dev)
+{
+ struct device *dev = &ls_dev->dev;
+ struct dpaa2_eth_priv *priv;
+ struct net_device *net_dev;
+ int err;
+
+ net_dev = dev_get_drvdata(dev);
+ priv = netdev_priv(net_dev);
+
+ /* get a handle for the DPNI object */
+ err = dpni_open(priv->mc_io, 0, ls_dev->obj_desc.id, &priv->mc_token);
+ if (err) {
+ dev_err(dev, "dpni_open() failed\n");
+ return err;
+ }
+
+ /* Check if we can work with this DPNI object */
+ err = dpni_get_api_version(priv->mc_io, 0, &priv->dpni_ver_major,
+ &priv->dpni_ver_minor);
+ if (err) {
+ dev_err(dev, "dpni_get_api_version() failed\n");
+ goto close;
+ }
+ if (dpaa2_eth_cmp_dpni_ver(priv, DPNI_VER_MAJOR, DPNI_VER_MINOR) < 0) {
+ dev_err(dev, "DPNI version %u.%u not supported, need >= %u.%u\n",
+ priv->dpni_ver_major, priv->dpni_ver_minor,
+ DPNI_VER_MAJOR, DPNI_VER_MINOR);
+ err = -ENOTSUPP;
+ goto close;
+ }
+
+ ls_dev->mc_io = priv->mc_io;
+ ls_dev->mc_handle = priv->mc_token;
+
+ err = dpni_reset(priv->mc_io, 0, priv->mc_token);
+ if (err) {
+ dev_err(dev, "dpni_reset() failed\n");
+ goto close;
+ }
+
+ err = dpni_get_attributes(priv->mc_io, 0, priv->mc_token,
+ &priv->dpni_attrs);
+ if (err) {
+ dev_err(dev, "dpni_get_attributes() failed (err=%d)\n", err);
+ goto close;
+ }
+
+ err = set_buffer_layout(priv);
+ if (err)
+ goto close;
+
+ return 0;
+
+close:
+ dpni_close(priv->mc_io, 0, priv->mc_token);
+
+ return err;
+}
+
+static void free_dpni(struct dpaa2_eth_priv *priv)
+{
+ int err;
+
+ err = dpni_reset(priv->mc_io, 0, priv->mc_token);
+ if (err)
+ netdev_warn(priv->net_dev, "dpni_reset() failed (err %d)\n",
+ err);
+
+ dpni_close(priv->mc_io, 0, priv->mc_token);
+}
+
+static int setup_rx_flow(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_fq *fq)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpni_queue queue;
+ struct dpni_queue_id qid;
+ struct dpni_taildrop td;
+ int err;
+
+ err = dpni_get_queue(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_RX, 0, fq->flowid, &queue, &qid);
+ if (err) {
+ dev_err(dev, "dpni_get_queue(RX) failed\n");
+ return err;
+ }
+
+ fq->fqid = qid.fqid;
+
+ queue.destination.id = fq->channel->dpcon_id;
+ queue.destination.type = DPNI_DEST_DPCON;
+ queue.destination.priority = 1;
+ queue.user_context = (u64)(uintptr_t)fq;
+ err = dpni_set_queue(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_RX, 0, fq->flowid,
+ DPNI_QUEUE_OPT_USER_CTX | DPNI_QUEUE_OPT_DEST,
+ &queue);
+ if (err) {
+ dev_err(dev, "dpni_set_queue(RX) failed\n");
+ return err;
+ }
+
+ td.enable = 1;
+ td.threshold = DPAA2_ETH_TAILDROP_THRESH;
+ err = dpni_set_taildrop(priv->mc_io, 0, priv->mc_token, DPNI_CP_QUEUE,
+ DPNI_QUEUE_RX, 0, fq->flowid, &td);
+ if (err) {
+ dev_err(dev, "dpni_set_threshold() failed\n");
+ return err;
+ }
+
+ return 0;
+}
+
+static int setup_tx_flow(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_fq *fq)
+{
+ struct device *dev = priv->net_dev->dev.parent;
+ struct dpni_queue queue;
+ struct dpni_queue_id qid;
+ int err;
+
+ err = dpni_get_queue(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_TX, 0, fq->flowid, &queue, &qid);
+ if (err) {
+ dev_err(dev, "dpni_get_queue(TX) failed\n");
+ return err;
+ }
+
+ fq->tx_qdbin = qid.qdbin;
+
+ err = dpni_get_queue(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_TX_CONFIRM, 0, fq->flowid,
+ &queue, &qid);
+ if (err) {
+ dev_err(dev, "dpni_get_queue(TX_CONF) failed\n");
+ return err;
+ }
+
+ fq->fqid = qid.fqid;
+
+ queue.destination.id = fq->channel->dpcon_id;
+ queue.destination.type = DPNI_DEST_DPCON;
+ queue.destination.priority = 0;
+ queue.user_context = (u64)(uintptr_t)fq;
+ err = dpni_set_queue(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_TX_CONFIRM, 0, fq->flowid,
+ DPNI_QUEUE_OPT_USER_CTX | DPNI_QUEUE_OPT_DEST,
+ &queue);
+ if (err) {
+ dev_err(dev, "dpni_set_queue(TX_CONF) failed\n");
+ return err;
+ }
+
+ return 0;
+}
+
+/* Hash key is a 5-tuple: IPsrc, IPdst, IPnextproto, L4src, L4dst */
+static const struct dpaa2_eth_hash_fields hash_fields[] = {
+ {
+ /* IP header */
+ .rxnfc_field = RXH_IP_SRC,
+ .cls_prot = NET_PROT_IP,
+ .cls_field = NH_FLD_IP_SRC,
+ .size = 4,
+ }, {
+ .rxnfc_field = RXH_IP_DST,
+ .cls_prot = NET_PROT_IP,
+ .cls_field = NH_FLD_IP_DST,
+ .size = 4,
+ }, {
+ .rxnfc_field = RXH_L3_PROTO,
+ .cls_prot = NET_PROT_IP,
+ .cls_field = NH_FLD_IP_PROTO,
+ .size = 1,
+ }, {
+ /* Using UDP ports, this is functionally equivalent to raw
+ * byte pairs from L4 header.
+ */
+ .rxnfc_field = RXH_L4_B_0_1,
+ .cls_prot = NET_PROT_UDP,
+ .cls_field = NH_FLD_UDP_PORT_SRC,
+ .size = 2,
+ }, {
+ .rxnfc_field = RXH_L4_B_2_3,
+ .cls_prot = NET_PROT_UDP,
+ .cls_field = NH_FLD_UDP_PORT_DST,
+ .size = 2,
+ },
+};
+
+/* Set RX hash options
+ * flags is a combination of RXH_ bits
+ */
+static int dpaa2_eth_set_hash(struct net_device *net_dev, u64 flags)
+{
+ struct device *dev = net_dev->dev.parent;
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct dpkg_profile_cfg cls_cfg;
+ struct dpni_rx_tc_dist_cfg dist_cfg;
+ u8 *dma_mem;
+ int i;
+ int err = 0;
+
+ if (!dpaa2_eth_hash_enabled(priv)) {
+ dev_dbg(dev, "Hashing support is not enabled\n");
+ return 0;
+ }
+
+ memset(&cls_cfg, 0, sizeof(cls_cfg));
+
+ for (i = 0; i < ARRAY_SIZE(hash_fields); i++) {
+ struct dpkg_extract *key =
+ &cls_cfg.extracts[cls_cfg.num_extracts];
+
+ if (!(flags & hash_fields[i].rxnfc_field))
+ continue;
+
+ if (cls_cfg.num_extracts >= DPKG_MAX_NUM_OF_EXTRACTS) {
+ dev_err(dev, "error adding key extraction rule, too many rules?\n");
+ return -E2BIG;
+ }
+
+ key->type = DPKG_EXTRACT_FROM_HDR;
+ key->extract.from_hdr.prot = hash_fields[i].cls_prot;
+ key->extract.from_hdr.type = DPKG_FULL_FIELD;
+ key->extract.from_hdr.field = hash_fields[i].cls_field;
+ cls_cfg.num_extracts++;
+
+ priv->rx_hash_fields |= hash_fields[i].rxnfc_field;
+ }
+
+ dma_mem = kzalloc(DPAA2_CLASSIFIER_DMA_SIZE, GFP_KERNEL);
+ if (!dma_mem)
+ return -ENOMEM;
+
+ err = dpni_prepare_key_cfg(&cls_cfg, dma_mem);
+ if (err) {
+ dev_err(dev, "dpni_prepare_key_cfg error %d\n", err);
+ goto err_prep_key;
+ }
+
+ memset(&dist_cfg, 0, sizeof(dist_cfg));
+
+ /* Prepare for setting the rx dist */
+ dist_cfg.key_cfg_iova = dma_map_single(dev, dma_mem,
+ DPAA2_CLASSIFIER_DMA_SIZE,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(dev, dist_cfg.key_cfg_iova)) {
+ dev_err(dev, "DMA mapping failed\n");
+ err = -ENOMEM;
+ goto err_dma_map;
+ }
+
+ dist_cfg.dist_size = dpaa2_eth_queue_count(priv);
+ dist_cfg.dist_mode = DPNI_DIST_MODE_HASH;
+
+ err = dpni_set_rx_tc_dist(priv->mc_io, 0, priv->mc_token, 0, &dist_cfg);
+ dma_unmap_single(dev, dist_cfg.key_cfg_iova,
+ DPAA2_CLASSIFIER_DMA_SIZE, DMA_TO_DEVICE);
+ if (err)
+ dev_err(dev, "dpni_set_rx_tc_dist() error %d\n", err);
+
+err_dma_map:
+err_prep_key:
+ kfree(dma_mem);
+ return err;
+}
+
+/* Bind the DPNI to its needed objects and resources: buffer pool, DPIOs,
+ * frame queues and channels
+ */
+static int bind_dpni(struct dpaa2_eth_priv *priv)
+{
+ struct net_device *net_dev = priv->net_dev;
+ struct device *dev = net_dev->dev.parent;
+ struct dpni_pools_cfg pools_params;
+ struct dpni_error_cfg err_cfg;
+ int err = 0;
+ int i;
+
+ pools_params.num_dpbp = 1;
+ pools_params.pools[0].dpbp_id = priv->dpbp_dev->obj_desc.id;
+ pools_params.pools[0].backup_pool = 0;
+ pools_params.pools[0].buffer_size = DPAA2_ETH_RX_BUF_SIZE;
+ err = dpni_set_pools(priv->mc_io, 0, priv->mc_token, &pools_params);
+ if (err) {
+ dev_err(dev, "dpni_set_pools() failed\n");
+ return err;
+ }
+
+ /* have the interface implicitly distribute traffic based on
+ * the default hash key
+ */
+ err = dpaa2_eth_set_hash(net_dev, DPAA2_RXH_DEFAULT);
+ if (err)
+ dev_err(dev, "Failed to configure hashing\n");
+
+ /* Configure handling of error frames */
+ err_cfg.errors = DPAA2_FAS_RX_ERR_MASK;
+ err_cfg.set_frame_annotation = 1;
+ err_cfg.error_action = DPNI_ERROR_ACTION_DISCARD;
+ err = dpni_set_errors_behavior(priv->mc_io, 0, priv->mc_token,
+ &err_cfg);
+ if (err) {
+ dev_err(dev, "dpni_set_errors_behavior failed\n");
+ return err;
+ }
+
+ /* Configure Rx and Tx conf queues to generate CDANs */
+ for (i = 0; i < priv->num_fqs; i++) {
+ switch (priv->fq[i].type) {
+ case DPAA2_RX_FQ:
+ err = setup_rx_flow(priv, &priv->fq[i]);
+ break;
+ case DPAA2_TX_CONF_FQ:
+ err = setup_tx_flow(priv, &priv->fq[i]);
+ break;
+ default:
+ dev_err(dev, "Invalid FQ type %d\n", priv->fq[i].type);
+ return -EINVAL;
+ }
+ if (err)
+ return err;
+ }
+
+ err = dpni_get_qdid(priv->mc_io, 0, priv->mc_token,
+ DPNI_QUEUE_TX, &priv->tx_qdid);
+ if (err) {
+ dev_err(dev, "dpni_get_qdid() failed\n");
+ return err;
+ }
+
+ return 0;
+}
+
+/* Allocate rings for storing incoming frame descriptors */
+static int alloc_rings(struct dpaa2_eth_priv *priv)
+{
+ struct net_device *net_dev = priv->net_dev;
+ struct device *dev = net_dev->dev.parent;
+ int i;
+
+ for (i = 0; i < priv->num_channels; i++) {
+ priv->channel[i]->store =
+ dpaa2_io_store_create(DPAA2_ETH_STORE_SIZE, dev);
+ if (!priv->channel[i]->store) {
+ netdev_err(net_dev, "dpaa2_io_store_create() failed\n");
+ goto err_ring;
+ }
+ }
+
+ return 0;
+
+err_ring:
+ for (i = 0; i < priv->num_channels; i++) {
+ if (!priv->channel[i]->store)
+ break;
+ dpaa2_io_store_destroy(priv->channel[i]->store);
+ }
+
+ return -ENOMEM;
+}
+
+static void free_rings(struct dpaa2_eth_priv *priv)
+{
+ int i;
+
+ for (i = 0; i < priv->num_channels; i++)
+ dpaa2_io_store_destroy(priv->channel[i]->store);
+}
+
+static int set_mac_addr(struct dpaa2_eth_priv *priv)
+{
+ struct net_device *net_dev = priv->net_dev;
+ struct device *dev = net_dev->dev.parent;
+ u8 mac_addr[ETH_ALEN], dpni_mac_addr[ETH_ALEN];
+ int err;
+
+ /* Get firmware address, if any */
+ err = dpni_get_port_mac_addr(priv->mc_io, 0, priv->mc_token, mac_addr);
+ if (err) {
+ dev_err(dev, "dpni_get_port_mac_addr() failed\n");
+ return err;
+ }
+
+ /* Get DPNI attributes address, if any */
+ err = dpni_get_primary_mac_addr(priv->mc_io, 0, priv->mc_token,
+ dpni_mac_addr);
+ if (err) {
+ dev_err(dev, "dpni_get_primary_mac_addr() failed\n");
+ return err;
+ }
+
+ /* First check if firmware has any address configured by bootloader */
+ if (!is_zero_ether_addr(mac_addr)) {
+ /* If the DPMAC addr != DPNI addr, update it */
+ if (!ether_addr_equal(mac_addr, dpni_mac_addr)) {
+ err = dpni_set_primary_mac_addr(priv->mc_io, 0,
+ priv->mc_token,
+ mac_addr);
+ if (err) {
+ dev_err(dev, "dpni_set_primary_mac_addr() failed\n");
+ return err;
+ }
+ }
+ memcpy(net_dev->dev_addr, mac_addr, net_dev->addr_len);
+ } else if (is_zero_ether_addr(dpni_mac_addr)) {
+ /* No MAC address configured, fill in net_dev->dev_addr
+ * with a random one
+ */
+ eth_hw_addr_random(net_dev);
+ dev_dbg_once(dev, "device(s) have all-zero hwaddr, replaced with random\n");
+
+ err = dpni_set_primary_mac_addr(priv->mc_io, 0, priv->mc_token,
+ net_dev->dev_addr);
+ if (err) {
+ dev_err(dev, "dpni_set_primary_mac_addr() failed\n");
+ return err;
+ }
+
+ /* Override NET_ADDR_RANDOM set by eth_hw_addr_random(); for all
+ * practical purposes, this will be our "permanent" mac address,
+ * at least until the next reboot. This move will also permit
+ * register_netdevice() to properly fill up net_dev->perm_addr.
+ */
+ net_dev->addr_assign_type = NET_ADDR_PERM;
+ } else {
+ /* NET_ADDR_PERM is default, all we have to do is
+ * fill in the device addr.
+ */
+ memcpy(net_dev->dev_addr, dpni_mac_addr, net_dev->addr_len);
+ }
+
+ return 0;
+}
+
+static int netdev_init(struct net_device *net_dev)
+{
+ struct device *dev = net_dev->dev.parent;
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ u32 options = priv->dpni_attrs.options;
+ u64 supported = 0, not_supported = 0;
+ u8 bcast_addr[ETH_ALEN];
+ u8 num_queues;
+ int err;
+
+ net_dev->netdev_ops = &dpaa2_eth_ops;
+ net_dev->ethtool_ops = &dpaa2_ethtool_ops;
+
+ err = set_mac_addr(priv);
+ if (err)
+ return err;
+
+ /* Explicitly add the broadcast address to the MAC filtering table */
+ eth_broadcast_addr(bcast_addr);
+ err = dpni_add_mac_addr(priv->mc_io, 0, priv->mc_token, bcast_addr);
+ if (err) {
+ dev_err(dev, "dpni_add_mac_addr() failed\n");
+ return err;
+ }
+
+ /* Set MTU upper limit; lower limit is 68B (default value) */
+ net_dev->max_mtu = DPAA2_ETH_MAX_MTU;
+ err = dpni_set_max_frame_length(priv->mc_io, 0, priv->mc_token,
+ DPAA2_ETH_MFL);
+ if (err) {
+ dev_err(dev, "dpni_set_max_frame_length() failed\n");
+ return err;
+ }
+
+ /* Set actual number of queues in the net device */
+ num_queues = dpaa2_eth_queue_count(priv);
+ err = netif_set_real_num_tx_queues(net_dev, num_queues);
+ if (err) {
+ dev_err(dev, "netif_set_real_num_tx_queues() failed\n");
+ return err;
+ }
+ err = netif_set_real_num_rx_queues(net_dev, num_queues);
+ if (err) {
+ dev_err(dev, "netif_set_real_num_rx_queues() failed\n");
+ return err;
+ }
+
+ /* Capabilities listing */
+ supported |= IFF_LIVE_ADDR_CHANGE;
+
+ if (options & DPNI_OPT_NO_MAC_FILTER)
+ not_supported |= IFF_UNICAST_FLT;
+ else
+ supported |= IFF_UNICAST_FLT;
+
+ net_dev->priv_flags |= supported;
+ net_dev->priv_flags &= ~not_supported;
+
+ /* Features */
+ net_dev->features = NETIF_F_RXCSUM |
+ NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+ NETIF_F_SG | NETIF_F_HIGHDMA |
+ NETIF_F_LLTX;
+ net_dev->hw_features = net_dev->features;
+
+ return 0;
+}
+
+static int poll_link_state(void *arg)
+{
+ struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)arg;
+ int err;
+
+ while (!kthread_should_stop()) {
+ err = link_state_update(priv);
+ if (unlikely(err))
+ return err;
+
+ msleep(DPAA2_ETH_LINK_STATE_REFRESH);
+ }
+
+ return 0;
+}
+
+static irqreturn_t dpni_irq0_handler_thread(int irq_num, void *arg)
+{
+ u32 status = ~0;
+ struct device *dev = (struct device *)arg;
+ struct fsl_mc_device *dpni_dev = to_fsl_mc_device(dev);
+ struct net_device *net_dev = dev_get_drvdata(dev);
+ int err;
+
+ err = dpni_get_irq_status(dpni_dev->mc_io, 0, dpni_dev->mc_handle,
+ DPNI_IRQ_INDEX, &status);
+ if (unlikely(err)) {
+ netdev_err(net_dev, "Can't get irq status (err %d)\n", err);
+ return IRQ_HANDLED;
+ }
+
+ if (status & DPNI_IRQ_EVENT_LINK_CHANGED)
+ link_state_update(netdev_priv(net_dev));
+
+ return IRQ_HANDLED;
+}
+
+static int setup_irqs(struct fsl_mc_device *ls_dev)
+{
+ int err = 0;
+ struct fsl_mc_device_irq *irq;
+
+ err = fsl_mc_allocate_irqs(ls_dev);
+ if (err) {
+ dev_err(&ls_dev->dev, "MC irqs allocation failed\n");
+ return err;
+ }
+
+ irq = ls_dev->irqs[0];
+ err = devm_request_threaded_irq(&ls_dev->dev, irq->msi_desc->irq,
+ NULL, dpni_irq0_handler_thread,
+ IRQF_NO_SUSPEND | IRQF_ONESHOT,
+ dev_name(&ls_dev->dev), &ls_dev->dev);
+ if (err < 0) {
+ dev_err(&ls_dev->dev, "devm_request_threaded_irq(): %d\n", err);
+ goto free_mc_irq;
+ }
+
+ err = dpni_set_irq_mask(ls_dev->mc_io, 0, ls_dev->mc_handle,
+ DPNI_IRQ_INDEX, DPNI_IRQ_EVENT_LINK_CHANGED);
+ if (err < 0) {
+ dev_err(&ls_dev->dev, "dpni_set_irq_mask(): %d\n", err);
+ goto free_irq;
+ }
+
+ err = dpni_set_irq_enable(ls_dev->mc_io, 0, ls_dev->mc_handle,
+ DPNI_IRQ_INDEX, 1);
+ if (err < 0) {
+ dev_err(&ls_dev->dev, "dpni_set_irq_enable(): %d\n", err);
+ goto free_irq;
+ }
+
+ return 0;
+
+free_irq:
+ devm_free_irq(&ls_dev->dev, irq->msi_desc->irq, &ls_dev->dev);
+free_mc_irq:
+ fsl_mc_free_irqs(ls_dev);
+
+ return err;
+}
+
+static void add_ch_napi(struct dpaa2_eth_priv *priv)
+{
+ int i;
+ struct dpaa2_eth_channel *ch;
+
+ for (i = 0; i < priv->num_channels; i++) {
+ ch = priv->channel[i];
+ /* NAPI weight *MUST* be a multiple of DPAA2_ETH_STORE_SIZE */
+ netif_napi_add(priv->net_dev, &ch->napi, dpaa2_eth_poll,
+ NAPI_POLL_WEIGHT);
+ }
+}
+
+static void del_ch_napi(struct dpaa2_eth_priv *priv)
+{
+ int i;
+ struct dpaa2_eth_channel *ch;
+
+ for (i = 0; i < priv->num_channels; i++) {
+ ch = priv->channel[i];
+ netif_napi_del(&ch->napi);
+ }
+}
+
+static int dpaa2_eth_probe(struct fsl_mc_device *dpni_dev)
+{
+ struct device *dev;
+ struct net_device *net_dev = NULL;
+ struct dpaa2_eth_priv *priv = NULL;
+ int err = 0;
+
+ dev = &dpni_dev->dev;
+
+ /* Net device */
+ net_dev = alloc_etherdev_mq(sizeof(*priv), DPAA2_ETH_MAX_TX_QUEUES);
+ if (!net_dev) {
+ dev_err(dev, "alloc_etherdev_mq() failed\n");
+ return -ENOMEM;
+ }
+
+ SET_NETDEV_DEV(net_dev, dev);
+ dev_set_drvdata(dev, net_dev);
+
+ priv = netdev_priv(net_dev);
+ priv->net_dev = net_dev;
+
+ priv->iommu_domain = iommu_get_domain_for_dev(dev);
+
+ /* Obtain a MC portal */
+ err = fsl_mc_portal_allocate(dpni_dev, FSL_MC_IO_ATOMIC_CONTEXT_PORTAL,
+ &priv->mc_io);
+ if (err) {
+ if (err == -ENXIO)
+ err = -EPROBE_DEFER;
+ else
+ dev_err(dev, "MC portal allocation failed\n");
+ goto err_portal_alloc;
+ }
+
+ /* MC objects initialization and configuration */
+ err = setup_dpni(dpni_dev);
+ if (err)
+ goto err_dpni_setup;
+
+ err = setup_dpio(priv);
+ if (err)
+ goto err_dpio_setup;
+
+ setup_fqs(priv);
+
+ err = setup_dpbp(priv);
+ if (err)
+ goto err_dpbp_setup;
+
+ err = bind_dpni(priv);
+ if (err)
+ goto err_bind;
+
+ /* Add a NAPI context for each channel */
+ add_ch_napi(priv);
+
+ /* Percpu statistics */
+ priv->percpu_stats = alloc_percpu(*priv->percpu_stats);
+ if (!priv->percpu_stats) {
+ dev_err(dev, "alloc_percpu(percpu_stats) failed\n");
+ err = -ENOMEM;
+ goto err_alloc_percpu_stats;
+ }
+ priv->percpu_extras = alloc_percpu(*priv->percpu_extras);
+ if (!priv->percpu_extras) {
+ dev_err(dev, "alloc_percpu(percpu_extras) failed\n");
+ err = -ENOMEM;
+ goto err_alloc_percpu_extras;
+ }
+
+ err = netdev_init(net_dev);
+ if (err)
+ goto err_netdev_init;
+
+ /* Configure checksum offload based on current interface flags */
+ err = set_rx_csum(priv, !!(net_dev->features & NETIF_F_RXCSUM));
+ if (err)
+ goto err_csum;
+
+ err = set_tx_csum(priv, !!(net_dev->features &
+ (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM)));
+ if (err)
+ goto err_csum;
+
+ err = alloc_rings(priv);
+ if (err)
+ goto err_alloc_rings;
+
+ err = setup_irqs(dpni_dev);
+ if (err) {
+ netdev_warn(net_dev, "Failed to set link interrupt, fall back to polling\n");
+ priv->poll_thread = kthread_run(poll_link_state, priv,
+ "%s_poll_link", net_dev->name);
+ if (IS_ERR(priv->poll_thread)) {
+ dev_err(dev, "Error starting polling thread\n");
+ goto err_poll_thread;
+ }
+ priv->do_link_poll = true;
+ }
+
+ err = register_netdev(net_dev);
+ if (err < 0) {
+ dev_err(dev, "register_netdev() failed\n");
+ goto err_netdev_reg;
+ }
+
+ dev_info(dev, "Probed interface %s\n", net_dev->name);
+ return 0;
+
+err_netdev_reg:
+ if (priv->do_link_poll)
+ kthread_stop(priv->poll_thread);
+ else
+ fsl_mc_free_irqs(dpni_dev);
+err_poll_thread:
+ free_rings(priv);
+err_alloc_rings:
+err_csum:
+err_netdev_init:
+ free_percpu(priv->percpu_extras);
+err_alloc_percpu_extras:
+ free_percpu(priv->percpu_stats);
+err_alloc_percpu_stats:
+ del_ch_napi(priv);
+err_bind:
+ free_dpbp(priv);
+err_dpbp_setup:
+ free_dpio(priv);
+err_dpio_setup:
+ free_dpni(priv);
+err_dpni_setup:
+ fsl_mc_portal_free(priv->mc_io);
+err_portal_alloc:
+ dev_set_drvdata(dev, NULL);
+ free_netdev(net_dev);
+
+ return err;
+}
+
+static int dpaa2_eth_remove(struct fsl_mc_device *ls_dev)
+{
+ struct device *dev;
+ struct net_device *net_dev;
+ struct dpaa2_eth_priv *priv;
+
+ dev = &ls_dev->dev;
+ net_dev = dev_get_drvdata(dev);
+ priv = netdev_priv(net_dev);
+
+ unregister_netdev(net_dev);
+
+ if (priv->do_link_poll)
+ kthread_stop(priv->poll_thread);
+ else
+ fsl_mc_free_irqs(ls_dev);
+
+ free_rings(priv);
+ free_percpu(priv->percpu_stats);
+ free_percpu(priv->percpu_extras);
+
+ del_ch_napi(priv);
+ free_dpbp(priv);
+ free_dpio(priv);
+ free_dpni(priv);
+
+ fsl_mc_portal_free(priv->mc_io);
+
+ free_netdev(net_dev);
+
+ dev_dbg(net_dev->dev.parent, "Removed interface %s\n", net_dev->name);
+
+ return 0;
+}
+
+static const struct fsl_mc_device_id dpaa2_eth_match_id_table[] = {
+ {
+ .vendor = FSL_MC_VENDOR_FREESCALE,
+ .obj_type = "dpni",
+ },
+ { .vendor = 0x0 }
+};
+MODULE_DEVICE_TABLE(fslmc, dpaa2_eth_match_id_table);
+
+static struct fsl_mc_driver dpaa2_eth_driver = {
+ .driver = {
+ .name = KBUILD_MODNAME,
+ .owner = THIS_MODULE,
+ },
+ .probe = dpaa2_eth_probe,
+ .remove = dpaa2_eth_remove,
+ .match_id_table = dpaa2_eth_match_id_table
+};
+
+module_fsl_mc_driver(dpaa2_eth_driver);
--- /dev/null
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
@@ -0,0 +1,412 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
+/* Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ */
+
+#ifndef __DPAA2_ETH_H
+#define __DPAA2_ETH_H
+
+#include <linux/netdevice.h>
+#include <linux/if_vlan.h>
+#include <linux/fsl/mc.h>
+
+#include <soc/fsl/dpaa2-io.h>
+#include <soc/fsl/dpaa2-fd.h>
+#include "dpni.h"
+#include "dpni-cmd.h"
+
+#include "dpaa2-eth-trace.h"
+
+#define DPAA2_WRIOP_VERSION(x, y, z) ((x) << 10 | (y) << 5 | (z) << 0)
+
+#define DPAA2_ETH_STORE_SIZE 16
+
+/* Maximum number of scatter-gather entries in an ingress frame,
+ * considering the maximum receive frame size is 64K
+ */
+#define DPAA2_ETH_MAX_SG_ENTRIES ((64 * 1024) / DPAA2_ETH_RX_BUF_SIZE)
+
+/* Maximum acceptable MTU value. It is in direct relation with the hardware
+ * enforced Max Frame Length (currently 10k).
+ */
+#define DPAA2_ETH_MFL (10 * 1024)
+#define DPAA2_ETH_MAX_MTU (DPAA2_ETH_MFL - VLAN_ETH_HLEN)
+/* Convert L3 MTU to L2 MFL */
+#define DPAA2_ETH_L2_MAX_FRM(mtu) ((mtu) + VLAN_ETH_HLEN)
+
+/* Set the taildrop threshold (in bytes) to allow the enqueue of several jumbo
+ * frames in the Rx queues (length of the current frame is not
+ * taken into account when making the taildrop decision)
+ */
+#define DPAA2_ETH_TAILDROP_THRESH (64 * 1024)
+
+/* Buffer quota per queue. Must be large enough such that for minimum sized
+ * frames taildrop kicks in before the bpool gets depleted, so we compute
+ * how many 64B frames fit inside the taildrop threshold and add a margin
+ * to accommodate the buffer refill delay.
+ */
+#define DPAA2_ETH_MAX_FRAMES_PER_QUEUE (DPAA2_ETH_TAILDROP_THRESH / 64)
+#define DPAA2_ETH_NUM_BUFS (DPAA2_ETH_MAX_FRAMES_PER_QUEUE + 256)
+#define DPAA2_ETH_REFILL_THRESH DPAA2_ETH_MAX_FRAMES_PER_QUEUE
+
+/* Maximum number of buffers that can be acquired/released through a single
+ * QBMan command
+ */
+#define DPAA2_ETH_BUFS_PER_CMD 7
+
+/* Hardware requires alignment for ingress/egress buffer addresses */
+#define DPAA2_ETH_TX_BUF_ALIGN 64
+
+#define DPAA2_ETH_RX_BUF_SIZE 2048
+#define DPAA2_ETH_SKB_SIZE \
+ (DPAA2_ETH_RX_BUF_SIZE + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
+
+/* Hardware annotation area in RX/TX buffers */
+#define DPAA2_ETH_RX_HWA_SIZE 64
+#define DPAA2_ETH_TX_HWA_SIZE 128
+
+/* PTP nominal frequency 1GHz */
+#define DPAA2_PTP_CLK_PERIOD_NS 1
+
+/* Due to a limitation in WRIOP 1.0.0, the RX buffer data must be aligned
+ * to 256B. For newer revisions, the requirement is only for 64B alignment
+ */
+#define DPAA2_ETH_RX_BUF_ALIGN_REV1 256
+#define DPAA2_ETH_RX_BUF_ALIGN 64
+
+/* We are accommodating a skb backpointer and some S/G info
+ * in the frame's software annotation. The hardware
+ * options are either 0 or 64, so we choose the latter.
+ */
+#define DPAA2_ETH_SWA_SIZE 64
+
+/* Must keep this struct smaller than DPAA2_ETH_SWA_SIZE */
+struct dpaa2_eth_swa {
+ struct sk_buff *skb;
+ struct scatterlist *scl;
+ int num_sg;
+ int sgt_size;
+};
+
+/* Annotation valid bits in FD FRC */
+#define DPAA2_FD_FRC_FASV 0x8000
+#define DPAA2_FD_FRC_FAEADV 0x4000
+#define DPAA2_FD_FRC_FAPRV 0x2000
+#define DPAA2_FD_FRC_FAIADV 0x1000
+#define DPAA2_FD_FRC_FASWOV 0x0800
+#define DPAA2_FD_FRC_FAICFDV 0x0400
+
+/* Error bits in FD CTRL */
+#define DPAA2_FD_RX_ERR_MASK (FD_CTRL_SBE | FD_CTRL_FAERR)
+#define DPAA2_FD_TX_ERR_MASK (FD_CTRL_UFD | \
+ FD_CTRL_SBE | \
+ FD_CTRL_FSE | \
+ FD_CTRL_FAERR)
+
+/* Annotation bits in FD CTRL */
+#define DPAA2_FD_CTRL_ASAL 0x00020000 /* ASAL = 128B */
+
+/* Frame annotation status */
+struct dpaa2_fas {
+ u8 reserved;
+ u8 ppid;
+ __le16 ifpid;
+ __le32 status;
+};
+
+/* Frame annotation status word is located in the first 8 bytes
+ * of the buffer's hardware annoatation area
+ */
+#define DPAA2_FAS_OFFSET 0
+#define DPAA2_FAS_SIZE (sizeof(struct dpaa2_fas))
+
+/* Timestamp is located in the next 8 bytes of the buffer's
+ * hardware annotation area
+ */
+#define DPAA2_TS_OFFSET 0x8
+
+/* Frame annotation egress action descriptor */
+#define DPAA2_FAEAD_OFFSET 0x58
+
+struct dpaa2_faead {
+ __le32 conf_fqid;
+ __le32 ctrl;
+};
+
+#define DPAA2_FAEAD_A2V 0x20000000
+#define DPAA2_FAEAD_UPDV 0x00001000
+#define DPAA2_FAEAD_UPD 0x00000010
+
+/* Accessors for the hardware annotation fields that we use */
+static inline void *dpaa2_get_hwa(void *buf_addr, bool swa)
+{
+ return buf_addr + (swa ? DPAA2_ETH_SWA_SIZE : 0);
+}
+
+static inline struct dpaa2_fas *dpaa2_get_fas(void *buf_addr, bool swa)
+{
+ return dpaa2_get_hwa(buf_addr, swa) + DPAA2_FAS_OFFSET;
+}
+
+static inline __le64 *dpaa2_get_ts(void *buf_addr, bool swa)
+{
+ return dpaa2_get_hwa(buf_addr, swa) + DPAA2_TS_OFFSET;
+}
+
+static inline struct dpaa2_faead *dpaa2_get_faead(void *buf_addr, bool swa)
+{
+ return dpaa2_get_hwa(buf_addr, swa) + DPAA2_FAEAD_OFFSET;
+}
+
+/* Error and status bits in the frame annotation status word */
+/* Debug frame, otherwise supposed to be discarded */
+#define DPAA2_FAS_DISC 0x80000000
+/* MACSEC frame */
+#define DPAA2_FAS_MS 0x40000000
+#define DPAA2_FAS_PTP 0x08000000
+/* Ethernet multicast frame */
+#define DPAA2_FAS_MC 0x04000000
+/* Ethernet broadcast frame */
+#define DPAA2_FAS_BC 0x02000000
+#define DPAA2_FAS_KSE 0x00040000
+#define DPAA2_FAS_EOFHE 0x00020000
+#define DPAA2_FAS_MNLE 0x00010000
+#define DPAA2_FAS_TIDE 0x00008000
+#define DPAA2_FAS_PIEE 0x00004000
+/* Frame length error */
+#define DPAA2_FAS_FLE 0x00002000
+/* Frame physical error */
+#define DPAA2_FAS_FPE 0x00001000
+#define DPAA2_FAS_PTE 0x00000080
+#define DPAA2_FAS_ISP 0x00000040
+#define DPAA2_FAS_PHE 0x00000020
+#define DPAA2_FAS_BLE 0x00000010
+/* L3 csum validation performed */
+#define DPAA2_FAS_L3CV 0x00000008
+/* L3 csum error */
+#define DPAA2_FAS_L3CE 0x00000004
+/* L4 csum validation performed */
+#define DPAA2_FAS_L4CV 0x00000002
+/* L4 csum error */
+#define DPAA2_FAS_L4CE 0x00000001
+/* Possible errors on the ingress path */
+#define DPAA2_FAS_RX_ERR_MASK (DPAA2_FAS_KSE | \
+ DPAA2_FAS_EOFHE | \
+ DPAA2_FAS_MNLE | \
+ DPAA2_FAS_TIDE | \
+ DPAA2_FAS_PIEE | \
+ DPAA2_FAS_FLE | \
+ DPAA2_FAS_FPE | \
+ DPAA2_FAS_PTE | \
+ DPAA2_FAS_ISP | \
+ DPAA2_FAS_PHE | \
+ DPAA2_FAS_BLE | \
+ DPAA2_FAS_L3CE | \
+ DPAA2_FAS_L4CE)
+
+/* Time in milliseconds between link state updates */
+#define DPAA2_ETH_LINK_STATE_REFRESH 1000
+
+/* Number of times to retry a frame enqueue before giving up.
+ * Value determined empirically, in order to minimize the number
+ * of frames dropped on Tx
+ */
+#define DPAA2_ETH_ENQUEUE_RETRIES 10
+
+/* Driver statistics, other than those in struct rtnl_link_stats64.
+ * These are usually collected per-CPU and aggregated by ethtool.
+ */
+struct dpaa2_eth_drv_stats {
+ __u64 tx_conf_frames;
+ __u64 tx_conf_bytes;
+ __u64 tx_sg_frames;
+ __u64 tx_sg_bytes;
+ __u64 tx_reallocs;
+ __u64 rx_sg_frames;
+ __u64 rx_sg_bytes;
+ /* Enqueues retried due to portal busy */
+ __u64 tx_portal_busy;
+};
+
+/* Per-FQ statistics */
+struct dpaa2_eth_fq_stats {
+ /* Number of frames received on this queue */
+ __u64 frames;
+};
+
+/* Per-channel statistics */
+struct dpaa2_eth_ch_stats {
+ /* Volatile dequeues retried due to portal busy */
+ __u64 dequeue_portal_busy;
+ /* Number of CDANs; useful to estimate avg NAPI len */
+ __u64 cdan;
+ /* Number of frames received on queues from this channel */
+ __u64 frames;
+ /* Pull errors */
+ __u64 pull_err;
+};
+
+/* Maximum number of queues associated with a DPNI */
+#define DPAA2_ETH_MAX_RX_QUEUES 16
+#define DPAA2_ETH_MAX_TX_QUEUES 16
+#define DPAA2_ETH_MAX_QUEUES (DPAA2_ETH_MAX_RX_QUEUES + \
+ DPAA2_ETH_MAX_TX_QUEUES)
+
+#define DPAA2_ETH_MAX_DPCONS 16
+
+enum dpaa2_eth_fq_type {
+ DPAA2_RX_FQ = 0,
+ DPAA2_TX_CONF_FQ,
+};
+
+struct dpaa2_eth_priv;
+
+struct dpaa2_eth_fq {
+ u32 fqid;
+ u32 tx_qdbin;
+ u16 flowid;
+ int target_cpu;
+ struct dpaa2_eth_channel *channel;
+ enum dpaa2_eth_fq_type type;
+
+ void (*consume)(struct dpaa2_eth_priv *priv,
+ struct dpaa2_eth_channel *ch,
+ const struct dpaa2_fd *fd,
+ struct napi_struct *napi,
+ u16 queue_id);
+ struct dpaa2_eth_fq_stats stats;
+};
+
+struct dpaa2_eth_channel {
+ struct dpaa2_io_notification_ctx nctx;
+ struct fsl_mc_device *dpcon;
+ int dpcon_id;
+ int ch_id;
+ struct napi_struct napi;
+ struct dpaa2_io *dpio;
+ struct dpaa2_io_store *store;
+ struct dpaa2_eth_priv *priv;
+ int buf_count;
+ struct dpaa2_eth_ch_stats stats;
+};
+
+struct dpaa2_eth_hash_fields {
+ u64 rxnfc_field;
+ enum net_prot cls_prot;
+ int cls_field;
+ int size;
+};
+
+/* Driver private data */
+struct dpaa2_eth_priv {
+ struct net_device *net_dev;
+
+ u8 num_fqs;
+ struct dpaa2_eth_fq fq[DPAA2_ETH_MAX_QUEUES];
+
+ u8 num_channels;
+ struct dpaa2_eth_channel *channel[DPAA2_ETH_MAX_DPCONS];
+
+ struct dpni_attr dpni_attrs;
+ u16 dpni_ver_major;
+ u16 dpni_ver_minor;
+ u16 tx_data_offset;
+
+ struct fsl_mc_device *dpbp_dev;
+ u16 bpid;
+ struct iommu_domain *iommu_domain;
+
+ bool tx_tstamp; /* Tx timestamping enabled */
+ bool rx_tstamp; /* Rx timestamping enabled */
+
+ u16 tx_qdid;
+ u16 rx_buf_align;
+ struct fsl_mc_io *mc_io;
+ /* Cores which have an affine DPIO/DPCON.
+ * This is the cpu set on which Rx and Tx conf frames are processed
+ */
+ struct cpumask dpio_cpumask;
+
+ /* Standard statistics */
+ struct rtnl_link_stats64 __percpu *percpu_stats;
+ /* Extra stats, in addition to the ones known by the kernel */
+ struct dpaa2_eth_drv_stats __percpu *percpu_extras;
+
+ u16 mc_token;
+
+ struct dpni_link_state link_state;
+ bool do_link_poll;
+ struct task_struct *poll_thread;
+
+ /* enabled ethtool hashing bits */
+ u64 rx_hash_fields;
+};
+
+#define DPAA2_RXH_SUPPORTED (RXH_L2DA | RXH_VLAN | RXH_L3_PROTO \
+ | RXH_IP_SRC | RXH_IP_DST | RXH_L4_B_0_1 \
+ | RXH_L4_B_2_3)
+
+/* default Rx hash options, set during probing */
+#define DPAA2_RXH_DEFAULT (RXH_L3_PROTO | RXH_IP_SRC | RXH_IP_DST | \
+ RXH_L4_B_0_1 | RXH_L4_B_2_3)
+
+#define dpaa2_eth_hash_enabled(priv) \
+ ((priv)->dpni_attrs.num_queues > 1)
+
+/* Required by struct dpni_rx_tc_dist_cfg::key_cfg_iova */
+#define DPAA2_CLASSIFIER_DMA_SIZE 256
+
+extern const struct ethtool_ops dpaa2_ethtool_ops;
+extern int dpaa2_phc_index;
+
+static inline int dpaa2_eth_cmp_dpni_ver(struct dpaa2_eth_priv *priv,
+ u16 ver_major, u16 ver_minor)
+{
+ if (priv->dpni_ver_major == ver_major)
+ return priv->dpni_ver_minor - ver_minor;
+ return priv->dpni_ver_major - ver_major;
+}
+
+/* Hardware only sees DPAA2_ETH_RX_BUF_SIZE, but the skb built around
+ * the buffer also needs space for its shared info struct, and we need
+ * to allocate enough to accommodate hardware alignment restrictions
+ */
+static inline unsigned int dpaa2_eth_buf_raw_size(struct dpaa2_eth_priv *priv)
+{
+ return DPAA2_ETH_SKB_SIZE + priv->rx_buf_align;
+}
+
+static inline
+unsigned int dpaa2_eth_needed_headroom(struct dpaa2_eth_priv *priv,
+ struct sk_buff *skb)
+{
+ unsigned int headroom = DPAA2_ETH_SWA_SIZE;
+
+ /* For non-linear skbs we have no headroom requirement, as we build a
+ * SG frame with a newly allocated SGT buffer
+ */
+ if (skb_is_nonlinear(skb))
+ return 0;
+
+ /* If we have Tx timestamping, need 128B hardware annotation */
+ if (priv->tx_tstamp && skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)
+ headroom += DPAA2_ETH_TX_HWA_SIZE;
+
+ return headroom;
+}
+
+/* Extra headroom space requested to hardware, in order to make sure there's
+ * no realloc'ing in forwarding scenarios
+ */
+static inline unsigned int dpaa2_eth_rx_head_room(struct dpaa2_eth_priv *priv)
+{
+ return priv->tx_data_offset + DPAA2_ETH_TX_BUF_ALIGN -
+ DPAA2_ETH_RX_HWA_SIZE;
+}
+
+static int dpaa2_eth_queue_count(struct dpaa2_eth_priv *priv)
+{
+ return priv->dpni_attrs.num_queues;
+}
+
+#endif /* __DPAA2_H */
--- /dev/null
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
@@ -0,0 +1,280 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/* Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ */
+
+#include <linux/net_tstamp.h>
+
+#include "dpni.h" /* DPNI_LINK_OPT_* */
+#include "dpaa2-eth.h"
+
+/* To be kept in sync with DPNI statistics */
+static char dpaa2_ethtool_stats[][ETH_GSTRING_LEN] = {
+ "[hw] rx frames",
+ "[hw] rx bytes",
+ "[hw] rx mcast frames",
+ "[hw] rx mcast bytes",
+ "[hw] rx bcast frames",
+ "[hw] rx bcast bytes",
+ "[hw] tx frames",
+ "[hw] tx bytes",
+ "[hw] tx mcast frames",
+ "[hw] tx mcast bytes",
+ "[hw] tx bcast frames",
+ "[hw] tx bcast bytes",
+ "[hw] rx filtered frames",
+ "[hw] rx discarded frames",
+ "[hw] rx nobuffer discards",
+ "[hw] tx discarded frames",
+ "[hw] tx confirmed frames",
+};
+
+#define DPAA2_ETH_NUM_STATS ARRAY_SIZE(dpaa2_ethtool_stats)
+
+static char dpaa2_ethtool_extras[][ETH_GSTRING_LEN] = {
+ /* per-cpu stats */
+ "[drv] tx conf frames",
+ "[drv] tx conf bytes",
+ "[drv] tx sg frames",
+ "[drv] tx sg bytes",
+ "[drv] tx realloc frames",
+ "[drv] rx sg frames",
+ "[drv] rx sg bytes",
+ "[drv] enqueue portal busy",
+ /* Channel stats */
+ "[drv] dequeue portal busy",
+ "[drv] channel pull errors",
+ "[drv] cdan",
+};
+
+#define DPAA2_ETH_NUM_EXTRA_STATS ARRAY_SIZE(dpaa2_ethtool_extras)
+
+static void dpaa2_eth_get_drvinfo(struct net_device *net_dev,
+ struct ethtool_drvinfo *drvinfo)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+ strlcpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
+
+ snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+ "%u.%u", priv->dpni_ver_major, priv->dpni_ver_minor);
+
+ strlcpy(drvinfo->bus_info, dev_name(net_dev->dev.parent->parent),
+ sizeof(drvinfo->bus_info));
+}
+
+static int
+dpaa2_eth_get_link_ksettings(struct net_device *net_dev,
+ struct ethtool_link_ksettings *link_settings)
+{
+ struct dpni_link_state state = {0};
+ int err = 0;
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+ err = dpni_get_link_state(priv->mc_io, 0, priv->mc_token, &state);
+ if (err) {
+ netdev_err(net_dev, "ERROR %d getting link state\n", err);
+ goto out;
+ }
+
+ /* At the moment, we have no way of interrogating the DPMAC
+ * from the DPNI side - and for that matter there may exist
+ * no DPMAC at all. So for now we just don't report anything
+ * beyond the DPNI attributes.
+ */
+ if (state.options & DPNI_LINK_OPT_AUTONEG)
+ link_settings->base.autoneg = AUTONEG_ENABLE;
+ if (!(state.options & DPNI_LINK_OPT_HALF_DUPLEX))
+ link_settings->base.duplex = DUPLEX_FULL;
+ link_settings->base.speed = state.rate;
+
+out:
+ return err;
+}
+
+#define DPNI_DYNAMIC_LINK_SET_VER_MAJOR 7
+#define DPNI_DYNAMIC_LINK_SET_VER_MINOR 1
+static int
+dpaa2_eth_set_link_ksettings(struct net_device *net_dev,
+ const struct ethtool_link_ksettings *link_settings)
+{
+ struct dpni_link_cfg cfg = {0};
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ int err = 0;
+
+ /* If using an older MC version, the DPNI must be down
+ * in order to be able to change link settings. Taking steps to let
+ * the user know that.
+ */
+ if (dpaa2_eth_cmp_dpni_ver(priv, DPNI_DYNAMIC_LINK_SET_VER_MAJOR,
+ DPNI_DYNAMIC_LINK_SET_VER_MINOR) < 0) {
+ if (netif_running(net_dev)) {
+ netdev_info(net_dev, "Interface must be brought down first.\n");
+ return -EACCES;
+ }
+ }
+
+ cfg.rate = link_settings->base.speed;
+ if (link_settings->base.autoneg == AUTONEG_ENABLE)
+ cfg.options |= DPNI_LINK_OPT_AUTONEG;
+ else
+ cfg.options &= ~DPNI_LINK_OPT_AUTONEG;
+ if (link_settings->base.duplex == DUPLEX_HALF)
+ cfg.options |= DPNI_LINK_OPT_HALF_DUPLEX;
+ else
+ cfg.options &= ~DPNI_LINK_OPT_HALF_DUPLEX;
+
+ err = dpni_set_link_cfg(priv->mc_io, 0, priv->mc_token, &cfg);
+ if (err)
+ /* ethtool will be loud enough if we return an error; no point
+ * in putting our own error message on the console by default
+ */
+ netdev_dbg(net_dev, "ERROR %d setting link cfg\n", err);
+
+ return err;
+}
+
+static void dpaa2_eth_get_strings(struct net_device *netdev, u32 stringset,
+ u8 *data)
+{
+ u8 *p = data;
+ int i;
+
+ switch (stringset) {
+ case ETH_SS_STATS:
+ for (i = 0; i < DPAA2_ETH_NUM_STATS; i++) {
+ strlcpy(p, dpaa2_ethtool_stats[i], ETH_GSTRING_LEN);
+ p += ETH_GSTRING_LEN;
+ }
+ for (i = 0; i < DPAA2_ETH_NUM_EXTRA_STATS; i++) {
+ strlcpy(p, dpaa2_ethtool_extras[i], ETH_GSTRING_LEN);
+ p += ETH_GSTRING_LEN;
+ }
+ break;
+ }
+}
+
+static int dpaa2_eth_get_sset_count(struct net_device *net_dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS: /* ethtool_get_stats(), ethtool_get_drvinfo() */
+ return DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+/** Fill in hardware counters, as returned by MC.
+ */
+static void dpaa2_eth_get_ethtool_stats(struct net_device *net_dev,
+ struct ethtool_stats *stats,
+ u64 *data)
+{
+ int i = 0;
+ int j, k, err;
+ int num_cnt;
+ union dpni_statistics dpni_stats;
+ u64 cdan = 0;
+ u64 portal_busy = 0, pull_err = 0;
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct dpaa2_eth_drv_stats *extras;
+ struct dpaa2_eth_ch_stats *ch_stats;
+
+ memset(data, 0,
+ sizeof(u64) * (DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS));
+
+ /* Print standard counters, from DPNI statistics */
+ for (j = 0; j <= 2; j++) {
+ err = dpni_get_statistics(priv->mc_io, 0, priv->mc_token,
+ j, &dpni_stats);
+ if (err != 0)
+ netdev_warn(net_dev, "dpni_get_stats(%d) failed\n", j);
+ switch (j) {
+ case 0:
+ num_cnt = sizeof(dpni_stats.page_0) / sizeof(u64);
+ break;
+ case 1:
+ num_cnt = sizeof(dpni_stats.page_1) / sizeof(u64);
+ break;
+ case 2:
+ num_cnt = sizeof(dpni_stats.page_2) / sizeof(u64);
+ break;
+ }
+ for (k = 0; k < num_cnt; k++)
+ *(data + i++) = dpni_stats.raw.counter[k];
+ }
+
+ /* Print per-cpu extra stats */
+ for_each_online_cpu(k) {
+ extras = per_cpu_ptr(priv->percpu_extras, k);
+ for (j = 0; j < sizeof(*extras) / sizeof(__u64); j++)
+ *((__u64 *)data + i + j) += *((__u64 *)extras + j);
+ }
+ i += j;
+
+ for (j = 0; j < priv->num_channels; j++) {
+ ch_stats = &priv->channel[j]->stats;
+ cdan += ch_stats->cdan;
+ portal_busy += ch_stats->dequeue_portal_busy;
+ pull_err += ch_stats->pull_err;
+ }
+
+ *(data + i++) = portal_busy;
+ *(data + i++) = pull_err;
+ *(data + i++) = cdan;
+}
+
+static int dpaa2_eth_get_rxnfc(struct net_device *net_dev,
+ struct ethtool_rxnfc *rxnfc, u32 *rule_locs)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+ switch (rxnfc->cmd) {
+ case ETHTOOL_GRXFH:
+ /* we purposely ignore cmd->flow_type for now, because the
+ * classifier only supports a single set of fields for all
+ * protocols
+ */
+ rxnfc->data = priv->rx_hash_fields;
+ break;
+ case ETHTOOL_GRXRINGS:
+ rxnfc->data = dpaa2_eth_queue_count(priv);
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+int dpaa2_phc_index = -1;
+EXPORT_SYMBOL(dpaa2_phc_index);
+
+static int dpaa2_eth_get_ts_info(struct net_device *dev,
+ struct ethtool_ts_info *info)
+{
+ info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
+ SOF_TIMESTAMPING_RX_HARDWARE |
+ SOF_TIMESTAMPING_RAW_HARDWARE;
+
+ info->phc_index = dpaa2_phc_index;
+
+ info->tx_types = (1 << HWTSTAMP_TX_OFF) |
+ (1 << HWTSTAMP_TX_ON);
+
+ info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
+ (1 << HWTSTAMP_FILTER_ALL);
+ return 0;
+}
+
+const struct ethtool_ops dpaa2_ethtool_ops = {
+ .get_drvinfo = dpaa2_eth_get_drvinfo,
+ .get_link = ethtool_op_get_link,
+ .get_link_ksettings = dpaa2_eth_get_link_ksettings,
+ .set_link_ksettings = dpaa2_eth_set_link_ksettings,
+ .get_sset_count = dpaa2_eth_get_sset_count,
+ .get_ethtool_stats = dpaa2_eth_get_ethtool_stats,
+ .get_strings = dpaa2_eth_get_strings,
+ .get_rxnfc = dpaa2_eth_get_rxnfc,
+ .get_ts_info = dpaa2_eth_get_ts_info,
+};
--- /dev/null
+++ b/drivers/net/ethernet/freescale/dpaa2/dpkg.h
@@ -0,0 +1,480 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
+/* Copyright 2013-2015 Freescale Semiconductor Inc.
+ */
+#ifndef __FSL_DPKG_H_
+#define __FSL_DPKG_H_
+
+#include <linux/types.h>
+
+/* Data Path Key Generator API
+ * Contains initialization APIs and runtime APIs for the Key Generator
+ */
+
+/** Key Generator properties */
+
+/**
+ * Number of masks per key extraction
+ */
+#define DPKG_NUM_OF_MASKS 4
+/**
+ * Number of extractions per key profile
+ */
+#define DPKG_MAX_NUM_OF_EXTRACTS 10
+
+/**
+ * enum dpkg_extract_from_hdr_type - Selecting extraction by header types
+ * @DPKG_FROM_HDR: Extract selected bytes from header, by offset
+ * @DPKG_FROM_FIELD: Extract selected bytes from header, by offset from field
+ * @DPKG_FULL_FIELD: Extract a full field
+ */
+enum dpkg_extract_from_hdr_type {
+ DPKG_FROM_HDR = 0,
+ DPKG_FROM_FIELD = 1,
+ DPKG_FULL_FIELD = 2
+};
+
+/**
+ * enum dpkg_extract_type - Enumeration for selecting extraction type
+ * @DPKG_EXTRACT_FROM_HDR: Extract from the header
+ * @DPKG_EXTRACT_FROM_DATA: Extract from data not in specific header
+ * @DPKG_EXTRACT_FROM_PARSE: Extract from parser-result;
+ * e.g. can be used to extract header existence;
+ * please refer to 'Parse Result definition' section in the parser BG
+ */
+enum dpkg_extract_type {
+ DPKG_EXTRACT_FROM_HDR = 0,
+ DPKG_EXTRACT_FROM_DATA = 1,
+ DPKG_EXTRACT_FROM_PARSE = 3
+};
+
+/**
+ * struct dpkg_mask - A structure for defining a single extraction mask
+ * @mask: Byte mask for the extracted content
+ * @offset: Offset within the extracted content
+ */
+struct dpkg_mask {
+ u8 mask;
+ u8 offset;
+};
+
+/* Protocol fields */
+
+/* Ethernet fields */
+#define NH_FLD_ETH_DA BIT(0)
+#define NH_FLD_ETH_SA BIT(1)
+#define NH_FLD_ETH_LENGTH BIT(2)
+#define NH_FLD_ETH_TYPE BIT(3)
+#define NH_FLD_ETH_FINAL_CKSUM BIT(4)
+#define NH_FLD_ETH_PADDING BIT(5)
+#define NH_FLD_ETH_ALL_FIELDS (BIT(6) - 1)
+
+/* VLAN fields */
+#define NH_FLD_VLAN_VPRI BIT(0)
+#define NH_FLD_VLAN_CFI BIT(1)
+#define NH_FLD_VLAN_VID BIT(2)
+#define NH_FLD_VLAN_LENGTH BIT(3)
+#define NH_FLD_VLAN_TYPE BIT(4)
+#define NH_FLD_VLAN_ALL_FIELDS (BIT(5) - 1)
+
+#define NH_FLD_VLAN_TCI (NH_FLD_VLAN_VPRI | \
+ NH_FLD_VLAN_CFI | \
+ NH_FLD_VLAN_VID)
+
+/* IP (generic) fields */
+#define NH_FLD_IP_VER BIT(0)
+#define NH_FLD_IP_DSCP BIT(2)
+#define NH_FLD_IP_ECN BIT(3)
+#define NH_FLD_IP_PROTO BIT(4)
+#define NH_FLD_IP_SRC BIT(5)
+#define NH_FLD_IP_DST BIT(6)
+#define NH_FLD_IP_TOS_TC BIT(7)
+#define NH_FLD_IP_ID BIT(8)
+#define NH_FLD_IP_ALL_FIELDS (BIT(9) - 1)
+
+/* IPV4 fields */
+#define NH_FLD_IPV4_VER BIT(0)
+#define NH_FLD_IPV4_HDR_LEN BIT(1)
+#define NH_FLD_IPV4_TOS BIT(2)
+#define NH_FLD_IPV4_TOTAL_LEN BIT(3)
+#define NH_FLD_IPV4_ID BIT(4)
+#define NH_FLD_IPV4_FLAG_D BIT(5)
+#define NH_FLD_IPV4_FLAG_M BIT(6)
+#define NH_FLD_IPV4_OFFSET BIT(7)
+#define NH_FLD_IPV4_TTL BIT(8)
+#define NH_FLD_IPV4_PROTO BIT(9)
+#define NH_FLD_IPV4_CKSUM BIT(10)
+#define NH_FLD_IPV4_SRC_IP BIT(11)
+#define NH_FLD_IPV4_DST_IP BIT(12)
+#define NH_FLD_IPV4_OPTS BIT(13)
+#define NH_FLD_IPV4_OPTS_COUNT BIT(14)
+#define NH_FLD_IPV4_ALL_FIELDS (BIT(15) - 1)
+
+/* IPV6 fields */
+#define NH_FLD_IPV6_VER BIT(0)
+#define NH_FLD_IPV6_TC BIT(1)
+#define NH_FLD_IPV6_SRC_IP BIT(2)
+#define NH_FLD_IPV6_DST_IP BIT(3)
+#define NH_FLD_IPV6_NEXT_HDR BIT(4)
+#define NH_FLD_IPV6_FL BIT(5)
+#define NH_FLD_IPV6_HOP_LIMIT BIT(6)
+#define NH_FLD_IPV6_ID BIT(7)
+#define NH_FLD_IPV6_ALL_FIELDS (BIT(8) - 1)
+
+/* ICMP fields */
+#define NH_FLD_ICMP_TYPE BIT(0)
+#define NH_FLD_ICMP_CODE BIT(1)
+#define NH_FLD_ICMP_CKSUM BIT(2)
+#define NH_FLD_ICMP_ID BIT(3)
+#define NH_FLD_ICMP_SQ_NUM BIT(4)
+#define NH_FLD_ICMP_ALL_FIELDS (BIT(5) - 1)
+
+/* IGMP fields */
+#define NH_FLD_IGMP_VERSION BIT(0)
+#define NH_FLD_IGMP_TYPE BIT(1)
+#define NH_FLD_IGMP_CKSUM BIT(2)
+#define NH_FLD_IGMP_DATA BIT(3)
+#define NH_FLD_IGMP_ALL_FIELDS (BIT(4) - 1)
+
+/* TCP fields */
+#define NH_FLD_TCP_PORT_SRC BIT(0)
+#define NH_FLD_TCP_PORT_DST BIT(1)
+#define NH_FLD_TCP_SEQ BIT(2)
+#define NH_FLD_TCP_ACK BIT(3)
+#define NH_FLD_TCP_OFFSET BIT(4)
+#define NH_FLD_TCP_FLAGS BIT(5)
+#define NH_FLD_TCP_WINDOW BIT(6)
+#define NH_FLD_TCP_CKSUM BIT(7)
+#define NH_FLD_TCP_URGPTR BIT(8)
+#define NH_FLD_TCP_OPTS BIT(9)
+#define NH_FLD_TCP_OPTS_COUNT BIT(10)
+#define NH_FLD_TCP_ALL_FIELDS (BIT(11) - 1)
+
+/* UDP fields */
+#define NH_FLD_UDP_PORT_SRC BIT(0)
+#define NH_FLD_UDP_PORT_DST BIT(1)
+#define NH_FLD_UDP_LEN BIT(2)
+#define NH_FLD_UDP_CKSUM BIT(3)
+#define NH_FLD_UDP_ALL_FIELDS (BIT(4) - 1)
+
+/* UDP-lite fields */
+#define NH_FLD_UDP_LITE_PORT_SRC BIT(0)
+#define NH_FLD_UDP_LITE_PORT_DST BIT(1)
+#define NH_FLD_UDP_LITE_ALL_FIELDS (BIT(2) - 1)
+
+/* UDP-encap-ESP fields */
+#define NH_FLD_UDP_ENC_ESP_PORT_SRC BIT(0)
+#define NH_FLD_UDP_ENC_ESP_PORT_DST BIT(1)
+#define NH_FLD_UDP_ENC_ESP_LEN BIT(2)
+#define NH_FLD_UDP_ENC_ESP_CKSUM BIT(3)
+#define NH_FLD_UDP_ENC_ESP_SPI BIT(4)
+#define NH_FLD_UDP_ENC_ESP_SEQUENCE_NUM BIT(5)
+#define NH_FLD_UDP_ENC_ESP_ALL_FIELDS (BIT(6) - 1)
+
+/* SCTP fields */
+#define NH_FLD_SCTP_PORT_SRC BIT(0)
+#define NH_FLD_SCTP_PORT_DST BIT(1)
+#define NH_FLD_SCTP_VER_TAG BIT(2)
+#define NH_FLD_SCTP_CKSUM BIT(3)
+#define NH_FLD_SCTP_ALL_FIELDS (BIT(4) - 1)
+
+/* DCCP fields */
+#define NH_FLD_DCCP_PORT_SRC BIT(0)
+#define NH_FLD_DCCP_PORT_DST BIT(1)
+#define NH_FLD_DCCP_ALL_FIELDS (BIT(2) - 1)
+
+/* IPHC fields */
+#define NH_FLD_IPHC_CID BIT(0)
+#define NH_FLD_IPHC_CID_TYPE BIT(1)
+#define NH_FLD_IPHC_HCINDEX BIT(2)
+#define NH_FLD_IPHC_GEN BIT(3)
+#define NH_FLD_IPHC_D_BIT BIT(4)
+#define NH_FLD_IPHC_ALL_FIELDS (BIT(5) - 1)
+
+/* SCTP fields */
+#define NH_FLD_SCTP_CHUNK_DATA_TYPE BIT(0)
+#define NH_FLD_SCTP_CHUNK_DATA_FLAGS BIT(1)
+#define NH_FLD_SCTP_CHUNK_DATA_LENGTH BIT(2)
+#define NH_FLD_SCTP_CHUNK_DATA_TSN BIT(3)
+#define NH_FLD_SCTP_CHUNK_DATA_STREAM_ID BIT(4)
+#define NH_FLD_SCTP_CHUNK_DATA_STREAM_SQN BIT(5)
+#define NH_FLD_SCTP_CHUNK_DATA_PAYLOAD_PID BIT(6)
+#define NH_FLD_SCTP_CHUNK_DATA_UNORDERED BIT(7)
+#define NH_FLD_SCTP_CHUNK_DATA_BEGGINING BIT(8)
+#define NH_FLD_SCTP_CHUNK_DATA_END BIT(9)
+#define NH_FLD_SCTP_CHUNK_DATA_ALL_FIELDS (BIT(10) - 1)
+
+/* L2TPV2 fields */
+#define NH_FLD_L2TPV2_TYPE_BIT BIT(0)
+#define NH_FLD_L2TPV2_LENGTH_BIT BIT(1)
+#define NH_FLD_L2TPV2_SEQUENCE_BIT BIT(2)
+#define NH_FLD_L2TPV2_OFFSET_BIT BIT(3)
+#define NH_FLD_L2TPV2_PRIORITY_BIT BIT(4)
+#define NH_FLD_L2TPV2_VERSION BIT(5)
+#define NH_FLD_L2TPV2_LEN BIT(6)
+#define NH_FLD_L2TPV2_TUNNEL_ID BIT(7)
+#define NH_FLD_L2TPV2_SESSION_ID BIT(8)
+#define NH_FLD_L2TPV2_NS BIT(9)
+#define NH_FLD_L2TPV2_NR BIT(10)
+#define NH_FLD_L2TPV2_OFFSET_SIZE BIT(11)
+#define NH_FLD_L2TPV2_FIRST_BYTE BIT(12)
+#define NH_FLD_L2TPV2_ALL_FIELDS (BIT(13) - 1)
+
+/* L2TPV3 fields */
+#define NH_FLD_L2TPV3_CTRL_TYPE_BIT BIT(0)
+#define NH_FLD_L2TPV3_CTRL_LENGTH_BIT BIT(1)
+#define NH_FLD_L2TPV3_CTRL_SEQUENCE_BIT BIT(2)
+#define NH_FLD_L2TPV3_CTRL_VERSION BIT(3)
+#define NH_FLD_L2TPV3_CTRL_LENGTH BIT(4)
+#define NH_FLD_L2TPV3_CTRL_CONTROL BIT(5)
+#define NH_FLD_L2TPV3_CTRL_SENT BIT(6)
+#define NH_FLD_L2TPV3_CTRL_RECV BIT(7)
+#define NH_FLD_L2TPV3_CTRL_FIRST_BYTE BIT(8)
+#define NH_FLD_L2TPV3_CTRL_ALL_FIELDS (BIT(9) - 1)
+
+#define NH_FLD_L2TPV3_SESS_TYPE_BIT BIT(0)
+#define NH_FLD_L2TPV3_SESS_VERSION BIT(1)
+#define NH_FLD_L2TPV3_SESS_ID BIT(2)
+#define NH_FLD_L2TPV3_SESS_COOKIE BIT(3)
+#define NH_FLD_L2TPV3_SESS_ALL_FIELDS (BIT(4) - 1)
+
+/* PPP fields */
+#define NH_FLD_PPP_PID BIT(0)
+#define NH_FLD_PPP_COMPRESSED BIT(1)
+#define NH_FLD_PPP_ALL_FIELDS (BIT(2) - 1)
+
+/* PPPoE fields */
+#define NH_FLD_PPPOE_VER BIT(0)
+#define NH_FLD_PPPOE_TYPE BIT(1)
+#define NH_FLD_PPPOE_CODE BIT(2)
+#define NH_FLD_PPPOE_SID BIT(3)
+#define NH_FLD_PPPOE_LEN BIT(4)
+#define NH_FLD_PPPOE_SESSION BIT(5)
+#define NH_FLD_PPPOE_PID BIT(6)
+#define NH_FLD_PPPOE_ALL_FIELDS (BIT(7) - 1)
+
+/* PPP-Mux fields */
+#define NH_FLD_PPPMUX_PID BIT(0)
+#define NH_FLD_PPPMUX_CKSUM BIT(1)
+#define NH_FLD_PPPMUX_COMPRESSED BIT(2)
+#define NH_FLD_PPPMUX_ALL_FIELDS (BIT(3) - 1)
+
+/* PPP-Mux sub-frame fields */
+#define NH_FLD_PPPMUX_SUBFRM_PFF BIT(0)
+#define NH_FLD_PPPMUX_SUBFRM_LXT BIT(1)
+#define NH_FLD_PPPMUX_SUBFRM_LEN BIT(2)
+#define NH_FLD_PPPMUX_SUBFRM_PID BIT(3)
+#define NH_FLD_PPPMUX_SUBFRM_USE_PID BIT(4)
+#define NH_FLD_PPPMUX_SUBFRM_ALL_FIELDS (BIT(5) - 1)
+
+/* LLC fields */
+#define NH_FLD_LLC_DSAP BIT(0)
+#define NH_FLD_LLC_SSAP BIT(1)
+#define NH_FLD_LLC_CTRL BIT(2)
+#define NH_FLD_LLC_ALL_FIELDS (BIT(3) - 1)
+
+/* NLPID fields */
+#define NH_FLD_NLPID_NLPID BIT(0)
+#define NH_FLD_NLPID_ALL_FIELDS (BIT(1) - 1)
+
+/* SNAP fields */
+#define NH_FLD_SNAP_OUI BIT(0)
+#define NH_FLD_SNAP_PID BIT(1)
+#define NH_FLD_SNAP_ALL_FIELDS (BIT(2) - 1)
+
+/* LLC SNAP fields */
+#define NH_FLD_LLC_SNAP_TYPE BIT(0)
+#define NH_FLD_LLC_SNAP_ALL_FIELDS (BIT(1) - 1)
+
+/* ARP fields */
+#define NH_FLD_ARP_HTYPE BIT(0)
+#define NH_FLD_ARP_PTYPE BIT(1)
+#define NH_FLD_ARP_HLEN BIT(2)
+#define NH_FLD_ARP_PLEN BIT(3)
+#define NH_FLD_ARP_OPER BIT(4)
+#define NH_FLD_ARP_SHA BIT(5)
+#define NH_FLD_ARP_SPA BIT(6)
+#define NH_FLD_ARP_THA BIT(7)
+#define NH_FLD_ARP_TPA BIT(8)
+#define NH_FLD_ARP_ALL_FIELDS (BIT(9) - 1)
+
+/* RFC2684 fields */
+#define NH_FLD_RFC2684_LLC BIT(0)
+#define NH_FLD_RFC2684_NLPID BIT(1)
+#define NH_FLD_RFC2684_OUI BIT(2)
+#define NH_FLD_RFC2684_PID BIT(3)
+#define NH_FLD_RFC2684_VPN_OUI BIT(4)
+#define NH_FLD_RFC2684_VPN_IDX BIT(5)
+#define NH_FLD_RFC2684_ALL_FIELDS (BIT(6) - 1)
+
+/* User defined fields */
+#define NH_FLD_USER_DEFINED_SRCPORT BIT(0)
+#define NH_FLD_USER_DEFINED_PCDID BIT(1)
+#define NH_FLD_USER_DEFINED_ALL_FIELDS (BIT(2) - 1)
+
+/* Payload fields */
+#define NH_FLD_PAYLOAD_BUFFER BIT(0)
+#define NH_FLD_PAYLOAD_SIZE BIT(1)
+#define NH_FLD_MAX_FRM_SIZE BIT(2)
+#define NH_FLD_MIN_FRM_SIZE BIT(3)
+#define NH_FLD_PAYLOAD_TYPE BIT(4)
+#define NH_FLD_FRAME_SIZE BIT(5)
+#define NH_FLD_PAYLOAD_ALL_FIELDS (BIT(6) - 1)
+
+/* GRE fields */
+#define NH_FLD_GRE_TYPE BIT(0)
+#define NH_FLD_GRE_ALL_FIELDS (BIT(1) - 1)
+
+/* MINENCAP fields */
+#define NH_FLD_MINENCAP_SRC_IP BIT(0)
+#define NH_FLD_MINENCAP_DST_IP BIT(1)
+#define NH_FLD_MINENCAP_TYPE BIT(2)
+#define NH_FLD_MINENCAP_ALL_FIELDS (BIT(3) - 1)
+
+/* IPSEC AH fields */
+#define NH_FLD_IPSEC_AH_SPI BIT(0)
+#define NH_FLD_IPSEC_AH_NH BIT(1)
+#define NH_FLD_IPSEC_AH_ALL_FIELDS (BIT(2) - 1)
+
+/* IPSEC ESP fields */
+#define NH_FLD_IPSEC_ESP_SPI BIT(0)
+#define NH_FLD_IPSEC_ESP_SEQUENCE_NUM BIT(1)
+#define NH_FLD_IPSEC_ESP_ALL_FIELDS (BIT(2) - 1)
+
+/* MPLS fields */
+#define NH_FLD_MPLS_LABEL_STACK BIT(0)
+#define NH_FLD_MPLS_LABEL_STACK_ALL_FIELDS (BIT(1) - 1)
+
+/* MACSEC fields */
+#define NH_FLD_MACSEC_SECTAG BIT(0)
+#define NH_FLD_MACSEC_ALL_FIELDS (BIT(1) - 1)
+
+/* GTP fields */
+#define NH_FLD_GTP_TEID BIT(0)
+
+/* Supported protocols */
+enum net_prot {
+ NET_PROT_NONE = 0,
+ NET_PROT_PAYLOAD,
+ NET_PROT_ETH,
+ NET_PROT_VLAN,
+ NET_PROT_IPV4,
+ NET_PROT_IPV6,
+ NET_PROT_IP,
+ NET_PROT_TCP,
+ NET_PROT_UDP,
+ NET_PROT_UDP_LITE,
+ NET_PROT_IPHC,
+ NET_PROT_SCTP,
+ NET_PROT_SCTP_CHUNK_DATA,
+ NET_PROT_PPPOE,
+ NET_PROT_PPP,
+ NET_PROT_PPPMUX,
+ NET_PROT_PPPMUX_SUBFRM,
+ NET_PROT_L2TPV2,
+ NET_PROT_L2TPV3_CTRL,
+ NET_PROT_L2TPV3_SESS,
+ NET_PROT_LLC,
+ NET_PROT_LLC_SNAP,
+ NET_PROT_NLPID,
+ NET_PROT_SNAP,
+ NET_PROT_MPLS,
+ NET_PROT_IPSEC_AH,
+ NET_PROT_IPSEC_ESP,
+ NET_PROT_UDP_ENC_ESP, /* RFC 3948 */
+ NET_PROT_MACSEC,
+ NET_PROT_GRE,
+ NET_PROT_MINENCAP,
+ NET_PROT_DCCP,
+ NET_PROT_ICMP,
+ NET_PROT_IGMP,
+ NET_PROT_ARP,
+ NET_PROT_CAPWAP_DATA,
+ NET_PROT_CAPWAP_CTRL,
+ NET_PROT_RFC2684,
+ NET_PROT_ICMPV6,
+ NET_PROT_FCOE,
+ NET_PROT_FIP,
+ NET_PROT_ISCSI,
+ NET_PROT_GTP,
+ NET_PROT_USER_DEFINED_L2,
+ NET_PROT_USER_DEFINED_L3,
+ NET_PROT_USER_DEFINED_L4,
+ NET_PROT_USER_DEFINED_L5,
+ NET_PROT_USER_DEFINED_SHIM1,
+ NET_PROT_USER_DEFINED_SHIM2,
+
+ NET_PROT_DUMMY_LAST
+};
+
+/**
+ * struct dpkg_extract - A structure for defining a single extraction
+ * @type: Determines how the union below is interpreted:
+ * DPKG_EXTRACT_FROM_HDR: selects 'from_hdr';
+ * DPKG_EXTRACT_FROM_DATA: selects 'from_data';
+ * DPKG_EXTRACT_FROM_PARSE: selects 'from_parse'
+ * @extract: Selects extraction method
+ * @extract.from_hdr: Used when 'type = DPKG_EXTRACT_FROM_HDR'
+ * @extract.from_data: Used when 'type = DPKG_EXTRACT_FROM_DATA'
+ * @extract.from_parse: Used when 'type = DPKG_EXTRACT_FROM_PARSE'
+ * @extract.from_hdr.prot: Any of the supported headers
+ * @extract.from_hdr.type: Defines the type of header extraction:
+ * DPKG_FROM_HDR: use size & offset below;
+ * DPKG_FROM_FIELD: use field, size and offset below;
+ * DPKG_FULL_FIELD: use field below
+ * @extract.from_hdr.field: One of the supported fields (NH_FLD_)
+ * @extract.from_hdr.size: Size in bytes
+ * @extract.from_hdr.offset: Byte offset
+ * @extract.from_hdr.hdr_index: Clear for cases not listed below;
+ * Used for protocols that may have more than a single
+ * header, 0 indicates an outer header;
+ * Supported protocols (possible values):
+ * NET_PROT_VLAN (0, HDR_INDEX_LAST);
+ * NET_PROT_MPLS (0, 1, HDR_INDEX_LAST);
+ * NET_PROT_IP(0, HDR_INDEX_LAST);
+ * NET_PROT_IPv4(0, HDR_INDEX_LAST);
+ * NET_PROT_IPv6(0, HDR_INDEX_LAST);
+ * @extract.from_data.size: Size in bytes
+ * @extract.from_data.offset: Byte offset
+ * @extract.from_parse.size: Size in bytes
+ * @extract.from_parse.offset: Byte offset
+ * @num_of_byte_masks: Defines the number of valid entries in the array below;
+ * This is also the number of bytes to be used as masks
+ * @masks: Masks parameters
+ */
+struct dpkg_extract {
+ enum dpkg_extract_type type;
+ union {
+ struct {
+ enum net_prot prot;
+ enum dpkg_extract_from_hdr_type type;
+ u32 field;
+ u8 size;
+ u8 offset;
+ u8 hdr_index;
+ } from_hdr;
+ struct {
+ u8 size;
+ u8 offset;
+ } from_data;
+ struct {
+ u8 size;
+ u8 offset;
+ } from_parse;
+ } extract;
+
+ u8 num_of_byte_masks;
+ struct dpkg_mask masks[DPKG_NUM_OF_MASKS];
+};
+
+/**
+ * struct dpkg_profile_cfg - A structure for defining a full Key Generation
+ * profile (rule)
+ * @num_extracts: Defines the number of valid entries in the array below
+ * @extracts: Array of required extractions
+ */
+struct dpkg_profile_cfg {
+ u8 num_extracts;
+ struct dpkg_extract extracts[DPKG_MAX_NUM_OF_EXTRACTS];
+};
+
+#endif /* __FSL_DPKG_H_ */
--- /dev/null
+++ b/drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h
@@ -0,0 +1,518 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ */
+#ifndef _FSL_DPNI_CMD_H
+#define _FSL_DPNI_CMD_H
+
+#include "dpni.h"
+
+/* DPNI Version */
+#define DPNI_VER_MAJOR 7
+#define DPNI_VER_MINOR 0
+#define DPNI_CMD_BASE_VERSION 1
+#define DPNI_CMD_ID_OFFSET 4
+
+#define DPNI_CMD(id) (((id) << DPNI_CMD_ID_OFFSET) | DPNI_CMD_BASE_VERSION)
+
+#define DPNI_CMDID_OPEN DPNI_CMD(0x801)
+#define DPNI_CMDID_CLOSE DPNI_CMD(0x800)
+#define DPNI_CMDID_CREATE DPNI_CMD(0x901)
+#define DPNI_CMDID_DESTROY DPNI_CMD(0x900)
+#define DPNI_CMDID_GET_API_VERSION DPNI_CMD(0xa01)
+
+#define DPNI_CMDID_ENABLE DPNI_CMD(0x002)
+#define DPNI_CMDID_DISABLE DPNI_CMD(0x003)
+#define DPNI_CMDID_GET_ATTR DPNI_CMD(0x004)
+#define DPNI_CMDID_RESET DPNI_CMD(0x005)
+#define DPNI_CMDID_IS_ENABLED DPNI_CMD(0x006)
+
+#define DPNI_CMDID_SET_IRQ DPNI_CMD(0x010)
+#define DPNI_CMDID_GET_IRQ DPNI_CMD(0x011)
+#define DPNI_CMDID_SET_IRQ_ENABLE DPNI_CMD(0x012)
+#define DPNI_CMDID_GET_IRQ_ENABLE DPNI_CMD(0x013)
+#define DPNI_CMDID_SET_IRQ_MASK DPNI_CMD(0x014)
+#define DPNI_CMDID_GET_IRQ_MASK DPNI_CMD(0x015)
+#define DPNI_CMDID_GET_IRQ_STATUS DPNI_CMD(0x016)
+#define DPNI_CMDID_CLEAR_IRQ_STATUS DPNI_CMD(0x017)
+
+#define DPNI_CMDID_SET_POOLS DPNI_CMD(0x200)
+#define DPNI_CMDID_SET_ERRORS_BEHAVIOR DPNI_CMD(0x20B)
+
+#define DPNI_CMDID_GET_QDID DPNI_CMD(0x210)
+#define DPNI_CMDID_GET_TX_DATA_OFFSET DPNI_CMD(0x212)
+#define DPNI_CMDID_GET_LINK_STATE DPNI_CMD(0x215)
+#define DPNI_CMDID_SET_MAX_FRAME_LENGTH DPNI_CMD(0x216)
+#define DPNI_CMDID_GET_MAX_FRAME_LENGTH DPNI_CMD(0x217)
+#define DPNI_CMDID_SET_LINK_CFG DPNI_CMD(0x21A)
+#define DPNI_CMDID_SET_TX_SHAPING DPNI_CMD(0x21B)
+
+#define DPNI_CMDID_SET_MCAST_PROMISC DPNI_CMD(0x220)
+#define DPNI_CMDID_GET_MCAST_PROMISC DPNI_CMD(0x221)
+#define DPNI_CMDID_SET_UNICAST_PROMISC DPNI_CMD(0x222)
+#define DPNI_CMDID_GET_UNICAST_PROMISC DPNI_CMD(0x223)
+#define DPNI_CMDID_SET_PRIM_MAC DPNI_CMD(0x224)
+#define DPNI_CMDID_GET_PRIM_MAC DPNI_CMD(0x225)
+#define DPNI_CMDID_ADD_MAC_ADDR DPNI_CMD(0x226)
+#define DPNI_CMDID_REMOVE_MAC_ADDR DPNI_CMD(0x227)
+#define DPNI_CMDID_CLR_MAC_FILTERS DPNI_CMD(0x228)
+
+#define DPNI_CMDID_SET_RX_TC_DIST DPNI_CMD(0x235)
+
+#define DPNI_CMDID_ADD_FS_ENT DPNI_CMD(0x244)
+#define DPNI_CMDID_REMOVE_FS_ENT DPNI_CMD(0x245)
+#define DPNI_CMDID_CLR_FS_ENT DPNI_CMD(0x246)
+
+#define DPNI_CMDID_GET_STATISTICS DPNI_CMD(0x25D)
+#define DPNI_CMDID_GET_QUEUE DPNI_CMD(0x25F)
+#define DPNI_CMDID_SET_QUEUE DPNI_CMD(0x260)
+#define DPNI_CMDID_GET_TAILDROP DPNI_CMD(0x261)
+#define DPNI_CMDID_SET_TAILDROP DPNI_CMD(0x262)
+
+#define DPNI_CMDID_GET_PORT_MAC_ADDR DPNI_CMD(0x263)
+
+#define DPNI_CMDID_GET_BUFFER_LAYOUT DPNI_CMD(0x264)
+#define DPNI_CMDID_SET_BUFFER_LAYOUT DPNI_CMD(0x265)
+
+#define DPNI_CMDID_SET_TX_CONFIRMATION_MODE DPNI_CMD(0x266)
+#define DPNI_CMDID_SET_CONGESTION_NOTIFICATION DPNI_CMD(0x267)
+#define DPNI_CMDID_GET_CONGESTION_NOTIFICATION DPNI_CMD(0x268)
+#define DPNI_CMDID_SET_EARLY_DROP DPNI_CMD(0x269)
+#define DPNI_CMDID_GET_EARLY_DROP DPNI_CMD(0x26A)
+#define DPNI_CMDID_GET_OFFLOAD DPNI_CMD(0x26B)
+#define DPNI_CMDID_SET_OFFLOAD DPNI_CMD(0x26C)
+
+/* Macros for accessing command fields smaller than 1byte */
+#define DPNI_MASK(field) \
+ GENMASK(DPNI_##field##_SHIFT + DPNI_##field##_SIZE - 1, \
+ DPNI_##field##_SHIFT)
+
+#define dpni_set_field(var, field, val) \
+ ((var) |= (((val) << DPNI_##field##_SHIFT) & DPNI_MASK(field)))
+#define dpni_get_field(var, field) \
+ (((var) & DPNI_MASK(field)) >> DPNI_##field##_SHIFT)
+
+struct dpni_cmd_open {
+ __le32 dpni_id;
+};
+
+#define DPNI_BACKUP_POOL(val, order) (((val) & 0x1) << (order))
+struct dpni_cmd_set_pools {
+ /* cmd word 0 */
+ u8 num_dpbp;
+ u8 backup_pool_mask;
+ __le16 pad;
+ /* cmd word 0..4 */
+ __le32 dpbp_id[DPNI_MAX_DPBP];
+ /* cmd word 4..6 */
+ __le16 buffer_size[DPNI_MAX_DPBP];
+};
+
+/* The enable indication is always the least significant bit */
+#define DPNI_ENABLE_SHIFT 0
+#define DPNI_ENABLE_SIZE 1
+
+struct dpni_rsp_is_enabled {
+ u8 enabled;
+};
+
+struct dpni_rsp_get_irq {
+ /* response word 0 */
+ __le32 irq_val;
+ __le32 pad;
+ /* response word 1 */
+ __le64 irq_addr;
+ /* response word 2 */
+ __le32 irq_num;
+ __le32 type;
+};
+
+struct dpni_cmd_set_irq_enable {
+ u8 enable;
+ u8 pad[3];
+ u8 irq_index;
+};
+
+struct dpni_cmd_get_irq_enable {
+ __le32 pad;
+ u8 irq_index;
+};
+
+struct dpni_rsp_get_irq_enable {
+ u8 enabled;
+};
+
+struct dpni_cmd_set_irq_mask {
+ __le32 mask;
+ u8 irq_index;
+};
+
+struct dpni_cmd_get_irq_mask {
+ __le32 pad;
+ u8 irq_index;
+};
+
+struct dpni_rsp_get_irq_mask {
+ __le32 mask;
+};
+
+struct dpni_cmd_get_irq_status {
+ __le32 status;
+ u8 irq_index;
+};
+
+struct dpni_rsp_get_irq_status {
+ __le32 status;
+};
+
+struct dpni_cmd_clear_irq_status {
+ __le32 status;
+ u8 irq_index;
+};
+
+struct dpni_rsp_get_attr {
+ /* response word 0 */
+ __le32 options;
+ u8 num_queues;
+ u8 num_tcs;
+ u8 mac_filter_entries;
+ u8 pad0;
+ /* response word 1 */
+ u8 vlan_filter_entries;
+ u8 pad1;
+ u8 qos_entries;
+ u8 pad2;
+ __le16 fs_entries;
+ __le16 pad3;
+ /* response word 2 */
+ u8 qos_key_size;
+ u8 fs_key_size;
+ __le16 wriop_version;
+};
+
+#define DPNI_ERROR_ACTION_SHIFT 0
+#define DPNI_ERROR_ACTION_SIZE 4
+#define DPNI_FRAME_ANN_SHIFT 4
+#define DPNI_FRAME_ANN_SIZE 1
+
+struct dpni_cmd_set_errors_behavior {
+ __le32 errors;
+ /* from least significant bit: error_action:4, set_frame_annotation:1 */
+ u8 flags;
+};
+
+/* There are 3 separate commands for configuring Rx, Tx and Tx confirmation
+ * buffer layouts, but they all share the same parameters.
+ * If one of the functions changes, below structure needs to be split.
+ */
+
+#define DPNI_PASS_TS_SHIFT 0
+#define DPNI_PASS_TS_SIZE 1
+#define DPNI_PASS_PR_SHIFT 1
+#define DPNI_PASS_PR_SIZE 1
+#define DPNI_PASS_FS_SHIFT 2
+#define DPNI_PASS_FS_SIZE 1
+
+struct dpni_cmd_get_buffer_layout {
+ u8 qtype;
+};
+
+struct dpni_rsp_get_buffer_layout {
+ /* response word 0 */
+ u8 pad0[6];
+ /* from LSB: pass_timestamp:1, parser_result:1, frame_status:1 */
+ u8 flags;
+ u8 pad1;
+ /* response word 1 */
+ __le16 private_data_size;
+ __le16 data_align;
+ __le16 head_room;
+ __le16 tail_room;
+};
+
+struct dpni_cmd_set_buffer_layout {
+ /* cmd word 0 */
+ u8 qtype;
+ u8 pad0[3];
+ __le16 options;
+ /* from LSB: pass_timestamp:1, parser_result:1, frame_status:1 */
+ u8 flags;
+ u8 pad1;
+ /* cmd word 1 */
+ __le16 private_data_size;
+ __le16 data_align;
+ __le16 head_room;
+ __le16 tail_room;
+};
+
+struct dpni_cmd_set_offload {
+ u8 pad[3];
+ u8 dpni_offload;
+ __le32 config;
+};
+
+struct dpni_cmd_get_offload {
+ u8 pad[3];
+ u8 dpni_offload;
+};
+
+struct dpni_rsp_get_offload {
+ __le32 pad;
+ __le32 config;
+};
+
+struct dpni_cmd_get_qdid {
+ u8 qtype;
+};
+
+struct dpni_rsp_get_qdid {
+ __le16 qdid;
+};
+
+struct dpni_rsp_get_tx_data_offset {
+ __le16 data_offset;
+};
+
+struct dpni_cmd_get_statistics {
+ u8 page_number;
+};
+
+struct dpni_rsp_get_statistics {
+ __le64 counter[DPNI_STATISTICS_CNT];
+};
+
+struct dpni_cmd_set_link_cfg {
+ /* cmd word 0 */
+ __le64 pad0;
+ /* cmd word 1 */
+ __le32 rate;
+ __le32 pad1;
+ /* cmd word 2 */
+ __le64 options;
+};
+
+#define DPNI_LINK_STATE_SHIFT 0
+#define DPNI_LINK_STATE_SIZE 1
+
+struct dpni_rsp_get_link_state {
+ /* response word 0 */
+ __le32 pad0;
+ /* from LSB: up:1 */
+ u8 flags;
+ u8 pad1[3];
+ /* response word 1 */
+ __le32 rate;
+ __le32 pad2;
+ /* response word 2 */
+ __le64 options;
+};
+
+struct dpni_cmd_set_max_frame_length {
+ __le16 max_frame_length;
+};
+
+struct dpni_rsp_get_max_frame_length {
+ __le16 max_frame_length;
+};
+
+struct dpni_cmd_set_multicast_promisc {
+ u8 enable;
+};
+
+struct dpni_rsp_get_multicast_promisc {
+ u8 enabled;
+};
+
+struct dpni_cmd_set_unicast_promisc {
+ u8 enable;
+};
+
+struct dpni_rsp_get_unicast_promisc {
+ u8 enabled;
+};
+
+struct dpni_cmd_set_primary_mac_addr {
+ __le16 pad;
+ u8 mac_addr[6];
+};
+
+struct dpni_rsp_get_primary_mac_addr {
+ __le16 pad;
+ u8 mac_addr[6];
+};
+
+struct dpni_rsp_get_port_mac_addr {
+ __le16 pad;
+ u8 mac_addr[6];
+};
+
+struct dpni_cmd_add_mac_addr {
+ __le16 pad;
+ u8 mac_addr[6];
+};
+
+struct dpni_cmd_remove_mac_addr {
+ __le16 pad;
+ u8 mac_addr[6];
+};
+
+#define DPNI_UNICAST_FILTERS_SHIFT 0
+#define DPNI_UNICAST_FILTERS_SIZE 1
+#define DPNI_MULTICAST_FILTERS_SHIFT 1
+#define DPNI_MULTICAST_FILTERS_SIZE 1
+
+struct dpni_cmd_clear_mac_filters {
+ /* from LSB: unicast:1, multicast:1 */
+ u8 flags;
+};
+
+#define DPNI_DIST_MODE_SHIFT 0
+#define DPNI_DIST_MODE_SIZE 4
+#define DPNI_MISS_ACTION_SHIFT 4
+#define DPNI_MISS_ACTION_SIZE 4
+
+struct dpni_cmd_set_rx_tc_dist {
+ /* cmd word 0 */
+ __le16 dist_size;
+ u8 tc_id;
+ /* from LSB: dist_mode:4, miss_action:4 */
+ u8 flags;
+ __le16 pad0;
+ __le16 default_flow_id;
+ /* cmd word 1..5 */
+ __le64 pad1[5];
+ /* cmd word 6 */
+ __le64 key_cfg_iova;
+};
+
+/* dpni_set_rx_tc_dist extension (structure of the DMA-able memory at
+ * key_cfg_iova)
+ */
+struct dpni_mask_cfg {
+ u8 mask;
+ u8 offset;
+};
+
+#define DPNI_EFH_TYPE_SHIFT 0
+#define DPNI_EFH_TYPE_SIZE 4
+#define DPNI_EXTRACT_TYPE_SHIFT 0
+#define DPNI_EXTRACT_TYPE_SIZE 4
+
+struct dpni_dist_extract {
+ /* word 0 */
+ u8 prot;
+ /* EFH type stored in the 4 least significant bits */
+ u8 efh_type;
+ u8 size;
+ u8 offset;
+ __le32 field;
+ /* word 1 */
+ u8 hdr_index;
+ u8 constant;
+ u8 num_of_repeats;
+ u8 num_of_byte_masks;
+ /* Extraction type is stored in the 4 LSBs */
+ u8 extract_type;
+ u8 pad[3];
+ /* word 2 */
+ struct dpni_mask_cfg masks[4];
+};
+
+struct dpni_ext_set_rx_tc_dist {
+ /* extension word 0 */
+ u8 num_extracts;
+ u8 pad[7];
+ /* words 1..25 */
+ struct dpni_dist_extract extracts[DPKG_MAX_NUM_OF_EXTRACTS];
+};
+
+struct dpni_cmd_get_queue {
+ u8 qtype;
+ u8 tc;
+ u8 index;
+};
+
+#define DPNI_DEST_TYPE_SHIFT 0
+#define DPNI_DEST_TYPE_SIZE 4
+#define DPNI_STASH_CTRL_SHIFT 6
+#define DPNI_STASH_CTRL_SIZE 1
+#define DPNI_HOLD_ACTIVE_SHIFT 7
+#define DPNI_HOLD_ACTIVE_SIZE 1
+
+struct dpni_rsp_get_queue {
+ /* response word 0 */
+ __le64 pad0;
+ /* response word 1 */
+ __le32 dest_id;
+ __le16 pad1;
+ u8 dest_prio;
+ /* From LSB: dest_type:4, pad:2, flc_stash_ctrl:1, hold_active:1 */
+ u8 flags;
+ /* response word 2 */
+ __le64 flc;
+ /* response word 3 */
+ __le64 user_context;
+ /* response word 4 */
+ __le32 fqid;
+ __le16 qdbin;
+};
+
+struct dpni_cmd_set_queue {
+ /* cmd word 0 */
+ u8 qtype;
+ u8 tc;
+ u8 index;
+ u8 options;
+ __le32 pad0;
+ /* cmd word 1 */
+ __le32 dest_id;
+ __le16 pad1;
+ u8 dest_prio;
+ u8 flags;
+ /* cmd word 2 */
+ __le64 flc;
+ /* cmd word 3 */
+ __le64 user_context;
+};
+
+struct dpni_cmd_set_taildrop {
+ /* cmd word 0 */
+ u8 congestion_point;
+ u8 qtype;
+ u8 tc;
+ u8 index;
+ __le32 pad0;
+ /* cmd word 1 */
+ /* Only least significant bit is relevant */
+ u8 enable;
+ u8 pad1;
+ u8 units;
+ u8 pad2;
+ __le32 threshold;
+};
+
+struct dpni_cmd_get_taildrop {
+ u8 congestion_point;
+ u8 qtype;
+ u8 tc;
+ u8 index;
+};
+
+struct dpni_rsp_get_taildrop {
+ /* cmd word 0 */
+ __le64 pad0;
+ /* cmd word 1 */
+ /* only least significant bit is relevant */
+ u8 enable;
+ u8 pad1;
+ u8 units;
+ u8 pad2;
+ __le32 threshold;
+};
+
+struct dpni_rsp_get_api_version {
+ __le16 major;
+ __le16 minor;
+};
+
+#endif /* _FSL_DPNI_CMD_H */
--- /dev/null
+++ b/drivers/net/ethernet/freescale/dpaa2/dpni.c
@@ -0,0 +1,1600 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ */
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/fsl/mc.h>
+#include "dpni.h"
+#include "dpni-cmd.h"
+
+/**
+ * dpni_prepare_key_cfg() - function prepare extract parameters
+ * @cfg: defining a full Key Generation profile (rule)
+ * @key_cfg_buf: Zeroed 256 bytes of memory before mapping it to DMA
+ *
+ * This function has to be called before the following functions:
+ * - dpni_set_rx_tc_dist()
+ * - dpni_set_qos_table()
+ */
+int dpni_prepare_key_cfg(const struct dpkg_profile_cfg *cfg, u8 *key_cfg_buf)
+{
+ int i, j;
+ struct dpni_ext_set_rx_tc_dist *dpni_ext;
+ struct dpni_dist_extract *extr;
+
+ if (cfg->num_extracts > DPKG_MAX_NUM_OF_EXTRACTS)
+ return -EINVAL;
+
+ dpni_ext = (struct dpni_ext_set_rx_tc_dist *)key_cfg_buf;
+ dpni_ext->num_extracts = cfg->num_extracts;
+
+ for (i = 0; i < cfg->num_extracts; i++) {
+ extr = &dpni_ext->extracts[i];
+
+ switch (cfg->extracts[i].type) {
+ case DPKG_EXTRACT_FROM_HDR:
+ extr->prot = cfg->extracts[i].extract.from_hdr.prot;
+ dpni_set_field(extr->efh_type, EFH_TYPE,
+ cfg->extracts[i].extract.from_hdr.type);
+ extr->size = cfg->extracts[i].extract.from_hdr.size;
+ extr->offset = cfg->extracts[i].extract.from_hdr.offset;
+ extr->field = cpu_to_le32(
+ cfg->extracts[i].extract.from_hdr.field);
+ extr->hdr_index =
+ cfg->extracts[i].extract.from_hdr.hdr_index;
+ break;
+ case DPKG_EXTRACT_FROM_DATA:
+ extr->size = cfg->extracts[i].extract.from_data.size;
+ extr->offset =
+ cfg->extracts[i].extract.from_data.offset;
+ break;
+ case DPKG_EXTRACT_FROM_PARSE:
+ extr->size = cfg->extracts[i].extract.from_parse.size;
+ extr->offset =
+ cfg->extracts[i].extract.from_parse.offset;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ extr->num_of_byte_masks = cfg->extracts[i].num_of_byte_masks;
+ dpni_set_field(extr->extract_type, EXTRACT_TYPE,
+ cfg->extracts[i].type);
+
+ for (j = 0; j < DPKG_NUM_OF_MASKS; j++) {
+ extr->masks[j].mask = cfg->extracts[i].masks[j].mask;
+ extr->masks[j].offset =
+ cfg->extracts[i].masks[j].offset;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * dpni_open() - Open a control session for the specified object
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @dpni_id: DPNI unique ID
+ * @token: Returned token; use in subsequent API calls
+ *
+ * This function can be used to open a control session for an
+ * already created object; an object may have been declared in
+ * the DPL or by calling the dpni_create() function.
+ * This function returns a unique authentication token,
+ * associated with the specific object ID and the specific MC
+ * portal; this token must be used in all subsequent commands for
+ * this specific object.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_open(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int dpni_id,
+ u16 *token)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_open *cmd_params;
+
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_OPEN,
+ cmd_flags,
+ 0);
+ cmd_params = (struct dpni_cmd_open *)cmd.params;
+ cmd_params->dpni_id = cpu_to_le32(dpni_id);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ *token = mc_cmd_hdr_read_token(&cmd);
+
+ return 0;
+}
+
+/**
+ * dpni_close() - Close the control session of the object
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ *
+ * After this function is called, no further operations are
+ * allowed on the object without opening a new control session.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_close(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_CLOSE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_set_pools() - Set buffer pools configuration
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @cfg: Buffer pools configuration
+ *
+ * mandatory for DPNI operation
+ * warning:Allowed only when DPNI is disabled
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_pools(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_pools_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_pools *cmd_params;
+ int i;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_POOLS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_pools *)cmd.params;
+ cmd_params->num_dpbp = cfg->num_dpbp;
+ for (i = 0; i < DPNI_MAX_DPBP; i++) {
+ cmd_params->dpbp_id[i] = cpu_to_le32(cfg->pools[i].dpbp_id);
+ cmd_params->buffer_size[i] =
+ cpu_to_le16(cfg->pools[i].buffer_size);
+ cmd_params->backup_pool_mask |=
+ DPNI_BACKUP_POOL(cfg->pools[i].backup_pool, i);
+ }
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_enable() - Enable the DPNI, allow sending and receiving frames.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_ENABLE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_disable() - Disable the DPNI, stop sending and receiving frames.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_disable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_DISABLE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_is_enabled() - Check if the DPNI is enabled.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @en: Returns '1' if object is enabled; '0' otherwise
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_is_enabled(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int *en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_rsp_is_enabled *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_IS_ENABLED,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_is_enabled *)cmd.params;
+ *en = dpni_get_field(rsp_params->enabled, ENABLE);
+
+ return 0;
+}
+
+/**
+ * dpni_reset() - Reset the DPNI, returns the object to initial state.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_reset(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_RESET,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_set_irq_enable() - Set overall interrupt state.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @irq_index: The interrupt index to configure
+ * @en: Interrupt state: - enable = 1, disable = 0
+ *
+ * Allows GPP software to control when interrupts are generated.
+ * Each interrupt can have up to 32 causes. The enable/disable control's the
+ * overall interrupt state. if the interrupt is disabled no causes will cause
+ * an interrupt.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_irq_enable *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_IRQ_ENABLE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_irq_enable *)cmd.params;
+ dpni_set_field(cmd_params->enable, ENABLE, en);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_irq_enable() - Get overall interrupt state
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @irq_index: The interrupt index to configure
+ * @en: Returned interrupt state - enable = 1, disable = 0
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 *en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_get_irq_enable *cmd_params;
+ struct dpni_rsp_get_irq_enable *rsp_params;
+
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_IRQ_ENABLE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_irq_enable *)cmd.params;
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_irq_enable *)cmd.params;
+ *en = dpni_get_field(rsp_params->enabled, ENABLE);
+
+ return 0;
+}
+
+/**
+ * dpni_set_irq_mask() - Set interrupt mask.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @irq_index: The interrupt index to configure
+ * @mask: event mask to trigger interrupt;
+ * each bit:
+ * 0 = ignore event
+ * 1 = consider event for asserting IRQ
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 mask)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_irq_mask *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_IRQ_MASK,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_irq_mask *)cmd.params;
+ cmd_params->mask = cpu_to_le32(mask);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_irq_mask() - Get interrupt mask.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @irq_index: The interrupt index to configure
+ * @mask: Returned event mask to trigger interrupt
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *mask)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_get_irq_mask *cmd_params;
+ struct dpni_rsp_get_irq_mask *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_IRQ_MASK,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_irq_mask *)cmd.params;
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_irq_mask *)cmd.params;
+ *mask = le32_to_cpu(rsp_params->mask);
+
+ return 0;
+}
+
+/**
+ * dpni_get_irq_status() - Get the current status of any pending interrupts.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @irq_index: The interrupt index to configure
+ * @status: Returned interrupts status - one bit per cause:
+ * 0 = no interrupt pending
+ * 1 = interrupt pending
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *status)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_get_irq_status *cmd_params;
+ struct dpni_rsp_get_irq_status *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_IRQ_STATUS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_irq_status *)cmd.params;
+ cmd_params->status = cpu_to_le32(*status);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_irq_status *)cmd.params;
+ *status = le32_to_cpu(rsp_params->status);
+
+ return 0;
+}
+
+/**
+ * dpni_clear_irq_status() - Clear a pending interrupt's status
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @irq_index: The interrupt index to configure
+ * @status: bits to clear (W1C) - one bit per cause:
+ * 0 = don't change
+ * 1 = clear status bit
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_clear_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 status)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_clear_irq_status *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_CLEAR_IRQ_STATUS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_clear_irq_status *)cmd.params;
+ cmd_params->irq_index = irq_index;
+ cmd_params->status = cpu_to_le32(status);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_attributes() - Retrieve DPNI attributes.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @attr: Object's attributes
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpni_attr *attr)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_rsp_get_attr *rsp_params;
+
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_ATTR,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_attr *)cmd.params;
+ attr->options = le32_to_cpu(rsp_params->options);
+ attr->num_queues = rsp_params->num_queues;
+ attr->num_tcs = rsp_params->num_tcs;
+ attr->mac_filter_entries = rsp_params->mac_filter_entries;
+ attr->vlan_filter_entries = rsp_params->vlan_filter_entries;
+ attr->qos_entries = rsp_params->qos_entries;
+ attr->fs_entries = le16_to_cpu(rsp_params->fs_entries);
+ attr->qos_key_size = rsp_params->qos_key_size;
+ attr->fs_key_size = rsp_params->fs_key_size;
+ attr->wriop_version = le16_to_cpu(rsp_params->wriop_version);
+
+ return 0;
+}
+
+/**
+ * dpni_set_errors_behavior() - Set errors behavior
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @cfg: Errors configuration
+ *
+ * this function may be called numerous times with different
+ * error masks
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_errors_behavior(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpni_error_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_errors_behavior *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_ERRORS_BEHAVIOR,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_errors_behavior *)cmd.params;
+ cmd_params->errors = cpu_to_le32(cfg->errors);
+ dpni_set_field(cmd_params->flags, ERROR_ACTION, cfg->error_action);
+ dpni_set_field(cmd_params->flags, FRAME_ANN, cfg->set_frame_annotation);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_buffer_layout() - Retrieve buffer layout attributes.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @qtype: Type of queue to retrieve configuration for
+ * @layout: Returns buffer layout attributes
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_buffer_layout(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ struct dpni_buffer_layout *layout)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_get_buffer_layout *cmd_params;
+ struct dpni_rsp_get_buffer_layout *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_BUFFER_LAYOUT,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_buffer_layout *)cmd.params;
+ cmd_params->qtype = qtype;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_buffer_layout *)cmd.params;
+ layout->pass_timestamp = dpni_get_field(rsp_params->flags, PASS_TS);
+ layout->pass_parser_result = dpni_get_field(rsp_params->flags, PASS_PR);
+ layout->pass_frame_status = dpni_get_field(rsp_params->flags, PASS_FS);
+ layout->private_data_size = le16_to_cpu(rsp_params->private_data_size);
+ layout->data_align = le16_to_cpu(rsp_params->data_align);
+ layout->data_head_room = le16_to_cpu(rsp_params->head_room);
+ layout->data_tail_room = le16_to_cpu(rsp_params->tail_room);
+
+ return 0;
+}
+
+/**
+ * dpni_set_buffer_layout() - Set buffer layout configuration.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @qtype: Type of queue this configuration applies to
+ * @layout: Buffer layout configuration
+ *
+ * Return: '0' on Success; Error code otherwise.
+ *
+ * @warning Allowed only when DPNI is disabled
+ */
+int dpni_set_buffer_layout(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ const struct dpni_buffer_layout *layout)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_buffer_layout *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_BUFFER_LAYOUT,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_buffer_layout *)cmd.params;
+ cmd_params->qtype = qtype;
+ cmd_params->options = cpu_to_le16(layout->options);
+ dpni_set_field(cmd_params->flags, PASS_TS, layout->pass_timestamp);
+ dpni_set_field(cmd_params->flags, PASS_PR, layout->pass_parser_result);
+ dpni_set_field(cmd_params->flags, PASS_FS, layout->pass_frame_status);
+ cmd_params->private_data_size = cpu_to_le16(layout->private_data_size);
+ cmd_params->data_align = cpu_to_le16(layout->data_align);
+ cmd_params->head_room = cpu_to_le16(layout->data_head_room);
+ cmd_params->tail_room = cpu_to_le16(layout->data_tail_room);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_set_offload() - Set DPNI offload configuration.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @type: Type of DPNI offload
+ * @config: Offload configuration.
+ * For checksum offloads, non-zero value enables the offload
+ *
+ * Return: '0' on Success; Error code otherwise.
+ *
+ * @warning Allowed only when DPNI is disabled
+ */
+
+int dpni_set_offload(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_offload type,
+ u32 config)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_offload *cmd_params;
+
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_OFFLOAD,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_offload *)cmd.params;
+ cmd_params->dpni_offload = type;
+ cmd_params->config = cpu_to_le32(config);
+
+ return mc_send_command(mc_io, &cmd);
+}
+
+int dpni_get_offload(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_offload type,
+ u32 *config)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_get_offload *cmd_params;
+ struct dpni_rsp_get_offload *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_OFFLOAD,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_offload *)cmd.params;
+ cmd_params->dpni_offload = type;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_offload *)cmd.params;
+ *config = le32_to_cpu(rsp_params->config);
+
+ return 0;
+}
+
+/**
+ * dpni_get_qdid() - Get the Queuing Destination ID (QDID) that should be used
+ * for enqueue operations
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @qtype: Type of queue to receive QDID for
+ * @qdid: Returned virtual QDID value that should be used as an argument
+ * in all enqueue operations
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_qdid(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ u16 *qdid)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_get_qdid *cmd_params;
+ struct dpni_rsp_get_qdid *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_QDID,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_qdid *)cmd.params;
+ cmd_params->qtype = qtype;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_qdid *)cmd.params;
+ *qdid = le16_to_cpu(rsp_params->qdid);
+
+ return 0;
+}
+
+/**
+ * dpni_get_tx_data_offset() - Get the Tx data offset (from start of buffer)
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @data_offset: Tx data offset (from start of buffer)
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_tx_data_offset(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 *data_offset)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_rsp_get_tx_data_offset *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_TX_DATA_OFFSET,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_tx_data_offset *)cmd.params;
+ *data_offset = le16_to_cpu(rsp_params->data_offset);
+
+ return 0;
+}
+
+/**
+ * dpni_set_link_cfg() - set the link configuration.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @cfg: Link configuration
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_link_cfg(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_link_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_link_cfg *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_LINK_CFG,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_link_cfg *)cmd.params;
+ cmd_params->rate = cpu_to_le32(cfg->rate);
+ cmd_params->options = cpu_to_le64(cfg->options);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_link_state() - Return the link state (either up or down)
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @state: Returned link state;
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_link_state(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpni_link_state *state)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_rsp_get_link_state *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_LINK_STATE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_link_state *)cmd.params;
+ state->up = dpni_get_field(rsp_params->flags, LINK_STATE);
+ state->rate = le32_to_cpu(rsp_params->rate);
+ state->options = le64_to_cpu(rsp_params->options);
+
+ return 0;
+}
+
+/**
+ * dpni_set_max_frame_length() - Set the maximum received frame length.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @max_frame_length: Maximum received frame length (in
+ * bytes); frame is discarded if its
+ * length exceeds this value
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_max_frame_length(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 max_frame_length)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_max_frame_length *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_MAX_FRAME_LENGTH,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_max_frame_length *)cmd.params;
+ cmd_params->max_frame_length = cpu_to_le16(max_frame_length);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_max_frame_length() - Get the maximum received frame length.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @max_frame_length: Maximum received frame length (in
+ * bytes); frame is discarded if its
+ * length exceeds this value
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_max_frame_length(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 *max_frame_length)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_rsp_get_max_frame_length *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_MAX_FRAME_LENGTH,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_max_frame_length *)cmd.params;
+ *max_frame_length = le16_to_cpu(rsp_params->max_frame_length);
+
+ return 0;
+}
+
+/**
+ * dpni_set_multicast_promisc() - Enable/disable multicast promiscuous mode
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @en: Set to '1' to enable; '0' to disable
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_multicast_promisc(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_multicast_promisc *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_MCAST_PROMISC,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_multicast_promisc *)cmd.params;
+ dpni_set_field(cmd_params->enable, ENABLE, en);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_multicast_promisc() - Get multicast promiscuous mode
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @en: Returns '1' if enabled; '0' otherwise
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_multicast_promisc(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int *en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_rsp_get_multicast_promisc *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_MCAST_PROMISC,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_multicast_promisc *)cmd.params;
+ *en = dpni_get_field(rsp_params->enabled, ENABLE);
+
+ return 0;
+}
+
+/**
+ * dpni_set_unicast_promisc() - Enable/disable unicast promiscuous mode
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @en: Set to '1' to enable; '0' to disable
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_unicast_promisc(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_unicast_promisc *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_UNICAST_PROMISC,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_unicast_promisc *)cmd.params;
+ dpni_set_field(cmd_params->enable, ENABLE, en);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_unicast_promisc() - Get unicast promiscuous mode
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @en: Returns '1' if enabled; '0' otherwise
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_unicast_promisc(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int *en)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_rsp_get_unicast_promisc *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_UNICAST_PROMISC,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_unicast_promisc *)cmd.params;
+ *en = dpni_get_field(rsp_params->enabled, ENABLE);
+
+ return 0;
+}
+
+/**
+ * dpni_set_primary_mac_addr() - Set the primary MAC address
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @mac_addr: MAC address to set as primary address
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_primary_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const u8 mac_addr[6])
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_primary_mac_addr *cmd_params;
+ int i;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_PRIM_MAC,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_primary_mac_addr *)cmd.params;
+ for (i = 0; i < 6; i++)
+ cmd_params->mac_addr[i] = mac_addr[5 - i];
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_primary_mac_addr() - Get the primary MAC address
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @mac_addr: Returned MAC address
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_primary_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 mac_addr[6])
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_rsp_get_primary_mac_addr *rsp_params;
+ int i, err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_PRIM_MAC,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_primary_mac_addr *)cmd.params;
+ for (i = 0; i < 6; i++)
+ mac_addr[5 - i] = rsp_params->mac_addr[i];
+
+ return 0;
+}
+
+/**
+ * dpni_get_port_mac_addr() - Retrieve MAC address associated to the physical
+ * port the DPNI is attached to
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @mac_addr: MAC address of the physical port, if any, otherwise 0
+ *
+ * The primary MAC address is not cleared by this operation.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_port_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 mac_addr[6])
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_rsp_get_port_mac_addr *rsp_params;
+ int i, err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_PORT_MAC_ADDR,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_port_mac_addr *)cmd.params;
+ for (i = 0; i < 6; i++)
+ mac_addr[5 - i] = rsp_params->mac_addr[i];
+
+ return 0;
+}
+
+/**
+ * dpni_add_mac_addr() - Add MAC address filter
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @mac_addr: MAC address to add
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_add_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const u8 mac_addr[6])
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_add_mac_addr *cmd_params;
+ int i;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_ADD_MAC_ADDR,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_add_mac_addr *)cmd.params;
+ for (i = 0; i < 6; i++)
+ cmd_params->mac_addr[i] = mac_addr[5 - i];
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_remove_mac_addr() - Remove MAC address filter
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @mac_addr: MAC address to remove
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_remove_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const u8 mac_addr[6])
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_remove_mac_addr *cmd_params;
+ int i;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_REMOVE_MAC_ADDR,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_remove_mac_addr *)cmd.params;
+ for (i = 0; i < 6; i++)
+ cmd_params->mac_addr[i] = mac_addr[5 - i];
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_clear_mac_filters() - Clear all unicast and/or multicast MAC filters
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @unicast: Set to '1' to clear unicast addresses
+ * @multicast: Set to '1' to clear multicast addresses
+ *
+ * The primary MAC address is not cleared by this operation.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_clear_mac_filters(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int unicast,
+ int multicast)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_clear_mac_filters *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_CLR_MAC_FILTERS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_clear_mac_filters *)cmd.params;
+ dpni_set_field(cmd_params->flags, UNICAST_FILTERS, unicast);
+ dpni_set_field(cmd_params->flags, MULTICAST_FILTERS, multicast);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_set_rx_tc_dist() - Set Rx traffic class distribution configuration
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @tc_id: Traffic class selection (0-7)
+ * @cfg: Traffic class distribution configuration
+ *
+ * warning: if 'dist_mode != DPNI_DIST_MODE_NONE', call dpni_prepare_key_cfg()
+ * first to prepare the key_cfg_iova parameter
+ *
+ * Return: '0' on Success; error code otherwise.
+ */
+int dpni_set_rx_tc_dist(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 tc_id,
+ const struct dpni_rx_tc_dist_cfg *cfg)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_rx_tc_dist *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_RX_TC_DIST,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_rx_tc_dist *)cmd.params;
+ cmd_params->dist_size = cpu_to_le16(cfg->dist_size);
+ cmd_params->tc_id = tc_id;
+ dpni_set_field(cmd_params->flags, DIST_MODE, cfg->dist_mode);
+ dpni_set_field(cmd_params->flags, MISS_ACTION, cfg->fs_cfg.miss_action);
+ cmd_params->default_flow_id = cpu_to_le16(cfg->fs_cfg.default_flow_id);
+ cmd_params->key_cfg_iova = cpu_to_le64(cfg->key_cfg_iova);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_set_queue() - Set queue parameters
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @qtype: Type of queue - all queue types are supported, although
+ * the command is ignored for Tx
+ * @tc: Traffic class, in range 0 to NUM_TCS - 1
+ * @index: Selects the specific queue out of the set allocated for the
+ * same TC. Value must be in range 0 to NUM_QUEUES - 1
+ * @options: A combination of DPNI_QUEUE_OPT_ values that control what
+ * configuration options are set on the queue
+ * @queue: Queue structure
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_queue(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ u8 tc,
+ u8 index,
+ u8 options,
+ const struct dpni_queue *queue)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_queue *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_QUEUE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_queue *)cmd.params;
+ cmd_params->qtype = qtype;
+ cmd_params->tc = tc;
+ cmd_params->index = index;
+ cmd_params->options = options;
+ cmd_params->dest_id = cpu_to_le32(queue->destination.id);
+ cmd_params->dest_prio = queue->destination.priority;
+ dpni_set_field(cmd_params->flags, DEST_TYPE, queue->destination.type);
+ dpni_set_field(cmd_params->flags, STASH_CTRL, queue->flc.stash_control);
+ dpni_set_field(cmd_params->flags, HOLD_ACTIVE,
+ queue->destination.hold_active);
+ cmd_params->flc = cpu_to_le64(queue->flc.value);
+ cmd_params->user_context = cpu_to_le64(queue->user_context);
+
+ /* send command to mc */
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_queue() - Get queue parameters
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @qtype: Type of queue - all queue types are supported
+ * @tc: Traffic class, in range 0 to NUM_TCS - 1
+ * @index: Selects the specific queue out of the set allocated for the
+ * same TC. Value must be in range 0 to NUM_QUEUES - 1
+ * @queue: Queue configuration structure
+ * @qid: Queue identification
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_queue(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ u8 tc,
+ u8 index,
+ struct dpni_queue *queue,
+ struct dpni_queue_id *qid)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_get_queue *cmd_params;
+ struct dpni_rsp_get_queue *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_QUEUE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_queue *)cmd.params;
+ cmd_params->qtype = qtype;
+ cmd_params->tc = tc;
+ cmd_params->index = index;
+
+ /* send command to mc */
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_queue *)cmd.params;
+ queue->destination.id = le32_to_cpu(rsp_params->dest_id);
+ queue->destination.priority = rsp_params->dest_prio;
+ queue->destination.type = dpni_get_field(rsp_params->flags,
+ DEST_TYPE);
+ queue->flc.stash_control = dpni_get_field(rsp_params->flags,
+ STASH_CTRL);
+ queue->destination.hold_active = dpni_get_field(rsp_params->flags,
+ HOLD_ACTIVE);
+ queue->flc.value = le64_to_cpu(rsp_params->flc);
+ queue->user_context = le64_to_cpu(rsp_params->user_context);
+ qid->fqid = le32_to_cpu(rsp_params->fqid);
+ qid->qdbin = le16_to_cpu(rsp_params->qdbin);
+
+ return 0;
+}
+
+/**
+ * dpni_get_statistics() - Get DPNI statistics
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @page: Selects the statistics page to retrieve, see
+ * DPNI_GET_STATISTICS output. Pages are numbered 0 to 2.
+ * @stat: Structure containing the statistics
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_statistics(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 page,
+ union dpni_statistics *stat)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_get_statistics *cmd_params;
+ struct dpni_rsp_get_statistics *rsp_params;
+ int i, err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_STATISTICS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_statistics *)cmd.params;
+ cmd_params->page_number = page;
+
+ /* send command to mc */
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_statistics *)cmd.params;
+ for (i = 0; i < DPNI_STATISTICS_CNT; i++)
+ stat->raw.counter[i] = le64_to_cpu(rsp_params->counter[i]);
+
+ return 0;
+}
+
+/**
+ * dpni_set_taildrop() - Set taildrop per queue or TC
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @cg_point: Congestion point
+ * @q_type: Queue type on which the taildrop is configured.
+ * Only Rx queues are supported for now
+ * @tc: Traffic class to apply this taildrop to
+ * @q_index: Index of the queue if the DPNI supports multiple queues for
+ * traffic distribution. Ignored if CONGESTION_POINT is not 0.
+ * @taildrop: Taildrop structure
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_set_taildrop(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_congestion_point cg_point,
+ enum dpni_queue_type qtype,
+ u8 tc,
+ u8 index,
+ struct dpni_taildrop *taildrop)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_set_taildrop *cmd_params;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_TAILDROP,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_set_taildrop *)cmd.params;
+ cmd_params->congestion_point = cg_point;
+ cmd_params->qtype = qtype;
+ cmd_params->tc = tc;
+ cmd_params->index = index;
+ dpni_set_field(cmd_params->enable, ENABLE, taildrop->enable);
+ cmd_params->units = taildrop->units;
+ cmd_params->threshold = cpu_to_le32(taildrop->threshold);
+
+ /* send command to mc */
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_get_taildrop() - Get taildrop information
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPNI object
+ * @cg_point: Congestion point
+ * @q_type: Queue type on which the taildrop is configured.
+ * Only Rx queues are supported for now
+ * @tc: Traffic class to apply this taildrop to
+ * @q_index: Index of the queue if the DPNI supports multiple queues for
+ * traffic distribution. Ignored if CONGESTION_POINT is not 0.
+ * @taildrop: Taildrop structure
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_taildrop(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_congestion_point cg_point,
+ enum dpni_queue_type qtype,
+ u8 tc,
+ u8 index,
+ struct dpni_taildrop *taildrop)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct dpni_cmd_get_taildrop *cmd_params;
+ struct dpni_rsp_get_taildrop *rsp_params;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_TAILDROP,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpni_cmd_get_taildrop *)cmd.params;
+ cmd_params->congestion_point = cg_point;
+ cmd_params->qtype = qtype;
+ cmd_params->tc = tc;
+ cmd_params->index = index;
+
+ /* send command to mc */
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpni_rsp_get_taildrop *)cmd.params;
+ taildrop->enable = dpni_get_field(rsp_params->enable, ENABLE);
+ taildrop->units = rsp_params->units;
+ taildrop->threshold = le32_to_cpu(rsp_params->threshold);
+
+ return 0;
+}
+
+/**
+ * dpni_get_api_version() - Get Data Path Network Interface API version
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @major_ver: Major version of data path network interface API
+ * @minor_ver: Minor version of data path network interface API
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpni_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver)
+{
+ struct dpni_rsp_get_api_version *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_API_VERSION,
+ cmd_flags, 0);
+
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ rsp_params = (struct dpni_rsp_get_api_version *)cmd.params;
+ *major_ver = le16_to_cpu(rsp_params->major);
+ *minor_ver = le16_to_cpu(rsp_params->minor);
+
+ return 0;
+}
--- /dev/null
+++ b/drivers/net/ethernet/freescale/dpaa2/dpni.h
@@ -0,0 +1,824 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ */
+#ifndef __FSL_DPNI_H
+#define __FSL_DPNI_H
+
+#include "dpkg.h"
+
+struct fsl_mc_io;
+
+/**
+ * Data Path Network Interface API
+ * Contains initialization APIs and runtime control APIs for DPNI
+ */
+
+/** General DPNI macros */
+
+/**
+ * Maximum number of traffic classes
+ */
+#define DPNI_MAX_TC 8
+/**
+ * Maximum number of buffer pools per DPNI
+ */
+#define DPNI_MAX_DPBP 8
+
+/**
+ * All traffic classes considered; see dpni_set_queue()
+ */
+#define DPNI_ALL_TCS (u8)(-1)
+/**
+ * All flows within traffic class considered; see dpni_set_queue()
+ */
+#define DPNI_ALL_TC_FLOWS (u16)(-1)
+/**
+ * Generate new flow ID; see dpni_set_queue()
+ */
+#define DPNI_NEW_FLOW_ID (u16)(-1)
+
+/**
+ * Tx traffic is always released to a buffer pool on transmit, there are no
+ * resources allocated to have the frames confirmed back to the source after
+ * transmission.
+ */
+#define DPNI_OPT_TX_FRM_RELEASE 0x000001
+/**
+ * Disables support for MAC address filtering for addresses other than primary
+ * MAC address. This affects both unicast and multicast. Promiscuous mode can
+ * still be enabled/disabled for both unicast and multicast. If promiscuous mode
+ * is disabled, only traffic matching the primary MAC address will be accepted.
+ */
+#define DPNI_OPT_NO_MAC_FILTER 0x000002
+/**
+ * Allocate policers for this DPNI. They can be used to rate-limit traffic per
+ * traffic class (TC) basis.
+ */
+#define DPNI_OPT_HAS_POLICING 0x000004
+/**
+ * Congestion can be managed in several ways, allowing the buffer pool to
+ * deplete on ingress, taildrop on each queue or use congestion groups for sets
+ * of queues. If set, it configures a single congestion groups across all TCs.
+ * If reset, a congestion group is allocated for each TC. Only relevant if the
+ * DPNI has multiple traffic classes.
+ */
+#define DPNI_OPT_SHARED_CONGESTION 0x000008
+/**
+ * Enables TCAM for Flow Steering and QoS look-ups. If not specified, all
+ * look-ups are exact match. Note that TCAM is not available on LS1088 and its
+ * variants. Setting this bit on these SoCs will trigger an error.
+ */
+#define DPNI_OPT_HAS_KEY_MASKING 0x000010
+/**
+ * Disables the flow steering table.
+ */
+#define DPNI_OPT_NO_FS 0x000020
+
+int dpni_open(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int dpni_id,
+ u16 *token);
+
+int dpni_close(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+/**
+ * struct dpni_pools_cfg - Structure representing buffer pools configuration
+ * @num_dpbp: Number of DPBPs
+ * @pools: Array of buffer pools parameters; The number of valid entries
+ * must match 'num_dpbp' value
+ * @pools.dpbp_id: DPBP object ID
+ * @pools.buffer_size: Buffer size
+ * @pools.backup_pool: Backup pool
+ */
+struct dpni_pools_cfg {
+ u8 num_dpbp;
+ struct {
+ int dpbp_id;
+ u16 buffer_size;
+ int backup_pool;
+ } pools[DPNI_MAX_DPBP];
+};
+
+int dpni_set_pools(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_pools_cfg *cfg);
+
+int dpni_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+int dpni_disable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+int dpni_is_enabled(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int *en);
+
+int dpni_reset(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+/**
+ * DPNI IRQ Index and Events
+ */
+
+/**
+ * IRQ index
+ */
+#define DPNI_IRQ_INDEX 0
+/**
+ * IRQ event - indicates a change in link state
+ */
+#define DPNI_IRQ_EVENT_LINK_CHANGED 0x00000001
+
+int dpni_set_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 en);
+
+int dpni_get_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 *en);
+
+int dpni_set_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 mask);
+
+int dpni_get_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *mask);
+
+int dpni_get_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *status);
+
+int dpni_clear_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 status);
+
+/**
+ * struct dpni_attr - Structure representing DPNI attributes
+ * @options: Any combination of the following options:
+ * DPNI_OPT_TX_FRM_RELEASE
+ * DPNI_OPT_NO_MAC_FILTER
+ * DPNI_OPT_HAS_POLICING
+ * DPNI_OPT_SHARED_CONGESTION
+ * DPNI_OPT_HAS_KEY_MASKING
+ * DPNI_OPT_NO_FS
+ * @num_queues: Number of Tx and Rx queues used for traffic distribution.
+ * @num_tcs: Number of traffic classes (TCs), reserved for the DPNI.
+ * @mac_filter_entries: Number of entries in the MAC address filtering table.
+ * @vlan_filter_entries: Number of entries in the VLAN address filtering table.
+ * @qos_entries: Number of entries in the QoS classification table.
+ * @fs_entries: Number of entries in the flow steering table.
+ * @qos_key_size: Size, in bytes, of the QoS look-up key. Defining a key larger
+ * than this when adding QoS entries will result in an error.
+ * @fs_key_size: Size, in bytes, of the flow steering look-up key. Defining a
+ * key larger than this when composing the hash + FS key will
+ * result in an error.
+ * @wriop_version: Version of WRIOP HW block. The 3 version values are stored
+ * on 6, 5, 5 bits respectively.
+ */
+struct dpni_attr {
+ u32 options;
+ u8 num_queues;
+ u8 num_tcs;
+ u8 mac_filter_entries;
+ u8 vlan_filter_entries;
+ u8 qos_entries;
+ u16 fs_entries;
+ u8 qos_key_size;
+ u8 fs_key_size;
+ u16 wriop_version;
+};
+
+int dpni_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpni_attr *attr);
+
+/**
+ * DPNI errors
+ */
+
+/**
+ * Extract out of frame header error
+ */
+#define DPNI_ERROR_EOFHE 0x00020000
+/**
+ * Frame length error
+ */
+#define DPNI_ERROR_FLE 0x00002000
+/**
+ * Frame physical error
+ */
+#define DPNI_ERROR_FPE 0x00001000
+/**
+ * Parsing header error
+ */
+#define DPNI_ERROR_PHE 0x00000020
+/**
+ * Parser L3 checksum error
+ */
+#define DPNI_ERROR_L3CE 0x00000004
+/**
+ * Parser L3 checksum error
+ */
+#define DPNI_ERROR_L4CE 0x00000001
+
+/**
+ * enum dpni_error_action - Defines DPNI behavior for errors
+ * @DPNI_ERROR_ACTION_DISCARD: Discard the frame
+ * @DPNI_ERROR_ACTION_CONTINUE: Continue with the normal flow
+ * @DPNI_ERROR_ACTION_SEND_TO_ERROR_QUEUE: Send the frame to the error queue
+ */
+enum dpni_error_action {
+ DPNI_ERROR_ACTION_DISCARD = 0,
+ DPNI_ERROR_ACTION_CONTINUE = 1,
+ DPNI_ERROR_ACTION_SEND_TO_ERROR_QUEUE = 2
+};
+
+/**
+ * struct dpni_error_cfg - Structure representing DPNI errors treatment
+ * @errors: Errors mask; use 'DPNI_ERROR__<X>
+ * @error_action: The desired action for the errors mask
+ * @set_frame_annotation: Set to '1' to mark the errors in frame annotation
+ * status (FAS); relevant only for the non-discard action
+ */
+struct dpni_error_cfg {
+ u32 errors;
+ enum dpni_error_action error_action;
+ int set_frame_annotation;
+};
+
+int dpni_set_errors_behavior(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpni_error_cfg *cfg);
+
+/**
+ * DPNI buffer layout modification options
+ */
+
+/**
+ * Select to modify the time-stamp setting
+ */
+#define DPNI_BUF_LAYOUT_OPT_TIMESTAMP 0x00000001
+/**
+ * Select to modify the parser-result setting; not applicable for Tx
+ */
+#define DPNI_BUF_LAYOUT_OPT_PARSER_RESULT 0x00000002
+/**
+ * Select to modify the frame-status setting
+ */
+#define DPNI_BUF_LAYOUT_OPT_FRAME_STATUS 0x00000004
+/**
+ * Select to modify the private-data-size setting
+ */
+#define DPNI_BUF_LAYOUT_OPT_PRIVATE_DATA_SIZE 0x00000008
+/**
+ * Select to modify the data-alignment setting
+ */
+#define DPNI_BUF_LAYOUT_OPT_DATA_ALIGN 0x00000010
+/**
+ * Select to modify the data-head-room setting
+ */
+#define DPNI_BUF_LAYOUT_OPT_DATA_HEAD_ROOM 0x00000020
+/**
+ * Select to modify the data-tail-room setting
+ */
+#define DPNI_BUF_LAYOUT_OPT_DATA_TAIL_ROOM 0x00000040
+
+/**
+ * struct dpni_buffer_layout - Structure representing DPNI buffer layout
+ * @options: Flags representing the suggested modifications to the buffer
+ * layout; Use any combination of 'DPNI_BUF_LAYOUT_OPT_<X>' flags
+ * @pass_timestamp: Pass timestamp value
+ * @pass_parser_result: Pass parser results
+ * @pass_frame_status: Pass frame status
+ * @private_data_size: Size kept for private data (in bytes)
+ * @data_align: Data alignment
+ * @data_head_room: Data head room
+ * @data_tail_room: Data tail room
+ */
+struct dpni_buffer_layout {
+ u32 options;
+ int pass_timestamp;
+ int pass_parser_result;
+ int pass_frame_status;
+ u16 private_data_size;
+ u16 data_align;
+ u16 data_head_room;
+ u16 data_tail_room;
+};
+
+/**
+ * enum dpni_queue_type - Identifies a type of queue targeted by the command
+ * @DPNI_QUEUE_RX: Rx queue
+ * @DPNI_QUEUE_TX: Tx queue
+ * @DPNI_QUEUE_TX_CONFIRM: Tx confirmation queue
+ * @DPNI_QUEUE_RX_ERR: Rx error queue
+ */enum dpni_queue_type {
+ DPNI_QUEUE_RX,
+ DPNI_QUEUE_TX,
+ DPNI_QUEUE_TX_CONFIRM,
+ DPNI_QUEUE_RX_ERR,
+};
+
+int dpni_get_buffer_layout(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ struct dpni_buffer_layout *layout);
+
+int dpni_set_buffer_layout(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ const struct dpni_buffer_layout *layout);
+
+/**
+ * enum dpni_offload - Identifies a type of offload targeted by the command
+ * @DPNI_OFF_RX_L3_CSUM: Rx L3 checksum validation
+ * @DPNI_OFF_RX_L4_CSUM: Rx L4 checksum validation
+ * @DPNI_OFF_TX_L3_CSUM: Tx L3 checksum generation
+ * @DPNI_OFF_TX_L4_CSUM: Tx L4 checksum generation
+ */
+enum dpni_offload {
+ DPNI_OFF_RX_L3_CSUM,
+ DPNI_OFF_RX_L4_CSUM,
+ DPNI_OFF_TX_L3_CSUM,
+ DPNI_OFF_TX_L4_CSUM,
+};
+
+int dpni_set_offload(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_offload type,
+ u32 config);
+
+int dpni_get_offload(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_offload type,
+ u32 *config);
+
+int dpni_get_qdid(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ u16 *qdid);
+
+int dpni_get_tx_data_offset(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 *data_offset);
+
+#define DPNI_STATISTICS_CNT 7
+
+/**
+ * union dpni_statistics - Union describing the DPNI statistics
+ * @page_0: Page_0 statistics structure
+ * @page_0.ingress_all_frames: Ingress frame count
+ * @page_0.ingress_all_bytes: Ingress byte count
+ * @page_0.ingress_multicast_frames: Ingress multicast frame count
+ * @page_0.ingress_multicast_bytes: Ingress multicast byte count
+ * @page_0.ingress_broadcast_frames: Ingress broadcast frame count
+ * @page_0.ingress_broadcast_bytes: Ingress broadcast byte count
+ * @page_1: Page_1 statistics structure
+ * @page_1.egress_all_frames: Egress frame count
+ * @page_1.egress_all_bytes: Egress byte count
+ * @page_1.egress_multicast_frames: Egress multicast frame count
+ * @page_1.egress_multicast_bytes: Egress multicast byte count
+ * @page_1.egress_broadcast_frames: Egress broadcast frame count
+ * @page_1.egress_broadcast_bytes: Egress broadcast byte count
+ * @page_2: Page_2 statistics structure
+ * @page_2.ingress_filtered_frames: Ingress filtered frame count
+ * @page_2.ingress_discarded_frames: Ingress discarded frame count
+ * @page_2.ingress_nobuffer_discards: Ingress discarded frame count due to
+ * lack of buffers
+ * @page_2.egress_discarded_frames: Egress discarded frame count
+ * @page_2.egress_confirmed_frames: Egress confirmed frame count
+ * @raw: raw statistics structure, used to index counters
+ */
+union dpni_statistics {
+ struct {
+ u64 ingress_all_frames;
+ u64 ingress_all_bytes;
+ u64 ingress_multicast_frames;
+ u64 ingress_multicast_bytes;
+ u64 ingress_broadcast_frames;
+ u64 ingress_broadcast_bytes;
+ } page_0;
+ struct {
+ u64 egress_all_frames;
+ u64 egress_all_bytes;
+ u64 egress_multicast_frames;
+ u64 egress_multicast_bytes;
+ u64 egress_broadcast_frames;
+ u64 egress_broadcast_bytes;
+ } page_1;
+ struct {
+ u64 ingress_filtered_frames;
+ u64 ingress_discarded_frames;
+ u64 ingress_nobuffer_discards;
+ u64 egress_discarded_frames;
+ u64 egress_confirmed_frames;
+ } page_2;
+ struct {
+ u64 counter[DPNI_STATISTICS_CNT];
+ } raw;
+};
+
+int dpni_get_statistics(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 page,
+ union dpni_statistics *stat);
+
+/**
+ * Enable auto-negotiation
+ */
+#define DPNI_LINK_OPT_AUTONEG 0x0000000000000001ULL
+/**
+ * Enable half-duplex mode
+ */
+#define DPNI_LINK_OPT_HALF_DUPLEX 0x0000000000000002ULL
+/**
+ * Enable pause frames
+ */
+#define DPNI_LINK_OPT_PAUSE 0x0000000000000004ULL
+/**
+ * Enable a-symmetric pause frames
+ */
+#define DPNI_LINK_OPT_ASYM_PAUSE 0x0000000000000008ULL
+
+/**
+ * struct - Structure representing DPNI link configuration
+ * @rate: Rate
+ * @options: Mask of available options; use 'DPNI_LINK_OPT_<X>' values
+ */
+struct dpni_link_cfg {
+ u32 rate;
+ u64 options;
+};
+
+int dpni_set_link_cfg(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const struct dpni_link_cfg *cfg);
+
+/**
+ * struct dpni_link_state - Structure representing DPNI link state
+ * @rate: Rate
+ * @options: Mask of available options; use 'DPNI_LINK_OPT_<X>' values
+ * @up: Link state; '0' for down, '1' for up
+ */
+struct dpni_link_state {
+ u32 rate;
+ u64 options;
+ int up;
+};
+
+int dpni_get_link_state(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpni_link_state *state);
+
+int dpni_set_max_frame_length(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 max_frame_length);
+
+int dpni_get_max_frame_length(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u16 *max_frame_length);
+
+int dpni_set_multicast_promisc(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int en);
+
+int dpni_get_multicast_promisc(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int *en);
+
+int dpni_set_unicast_promisc(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int en);
+
+int dpni_get_unicast_promisc(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int *en);
+
+int dpni_set_primary_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const u8 mac_addr[6]);
+
+int dpni_get_primary_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 mac_addr[6]);
+
+int dpni_get_port_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cm_flags,
+ u16 token,
+ u8 mac_addr[6]);
+
+int dpni_add_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const u8 mac_addr[6]);
+
+int dpni_remove_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const u8 mac_addr[6]);
+
+int dpni_clear_mac_filters(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int unicast,
+ int multicast);
+
+/**
+ * enum dpni_dist_mode - DPNI distribution mode
+ * @DPNI_DIST_MODE_NONE: No distribution
+ * @DPNI_DIST_MODE_HASH: Use hash distribution; only relevant if
+ * the 'DPNI_OPT_DIST_HASH' option was set at DPNI creation
+ * @DPNI_DIST_MODE_FS: Use explicit flow steering; only relevant if
+ * the 'DPNI_OPT_DIST_FS' option was set at DPNI creation
+ */
+enum dpni_dist_mode {
+ DPNI_DIST_MODE_NONE = 0,
+ DPNI_DIST_MODE_HASH = 1,
+ DPNI_DIST_MODE_FS = 2
+};
+
+/**
+ * enum dpni_fs_miss_action - DPNI Flow Steering miss action
+ * @DPNI_FS_MISS_DROP: In case of no-match, drop the frame
+ * @DPNI_FS_MISS_EXPLICIT_FLOWID: In case of no-match, use explicit flow-id
+ * @DPNI_FS_MISS_HASH: In case of no-match, distribute using hash
+ */
+enum dpni_fs_miss_action {
+ DPNI_FS_MISS_DROP = 0,
+ DPNI_FS_MISS_EXPLICIT_FLOWID = 1,
+ DPNI_FS_MISS_HASH = 2
+};
+
+/**
+ * struct dpni_fs_tbl_cfg - Flow Steering table configuration
+ * @miss_action: Miss action selection
+ * @default_flow_id: Used when 'miss_action = DPNI_FS_MISS_EXPLICIT_FLOWID'
+ */
+struct dpni_fs_tbl_cfg {
+ enum dpni_fs_miss_action miss_action;
+ u16 default_flow_id;
+};
+
+int dpni_prepare_key_cfg(const struct dpkg_profile_cfg *cfg,
+ u8 *key_cfg_buf);
+
+/**
+ * struct dpni_rx_tc_dist_cfg - Rx traffic class distribution configuration
+ * @dist_size: Set the distribution size;
+ * supported values: 1,2,3,4,6,7,8,12,14,16,24,28,32,48,56,64,96,
+ * 112,128,192,224,256,384,448,512,768,896,1024
+ * @dist_mode: Distribution mode
+ * @key_cfg_iova: I/O virtual address of 256 bytes DMA-able memory filled with
+ * the extractions to be used for the distribution key by calling
+ * dpni_prepare_key_cfg() relevant only when
+ * 'dist_mode != DPNI_DIST_MODE_NONE', otherwise it can be '0'
+ * @fs_cfg: Flow Steering table configuration; only relevant if
+ * 'dist_mode = DPNI_DIST_MODE_FS'
+ */
+struct dpni_rx_tc_dist_cfg {
+ u16 dist_size;
+ enum dpni_dist_mode dist_mode;
+ u64 key_cfg_iova;
+ struct dpni_fs_tbl_cfg fs_cfg;
+};
+
+int dpni_set_rx_tc_dist(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 tc_id,
+ const struct dpni_rx_tc_dist_cfg *cfg);
+
+/**
+ * enum dpni_dest - DPNI destination types
+ * @DPNI_DEST_NONE: Unassigned destination; The queue is set in parked mode and
+ * does not generate FQDAN notifications; user is expected to
+ * dequeue from the queue based on polling or other user-defined
+ * method
+ * @DPNI_DEST_DPIO: The queue is set in schedule mode and generates FQDAN
+ * notifications to the specified DPIO; user is expected to dequeue
+ * from the queue only after notification is received
+ * @DPNI_DEST_DPCON: The queue is set in schedule mode and does not generate
+ * FQDAN notifications, but is connected to the specified DPCON
+ * object; user is expected to dequeue from the DPCON channel
+ */
+enum dpni_dest {
+ DPNI_DEST_NONE = 0,
+ DPNI_DEST_DPIO = 1,
+ DPNI_DEST_DPCON = 2
+};
+
+/**
+ * struct dpni_queue - Queue structure
+ * @destination - Destination structure
+ * @destination.id: ID of the destination, only relevant if DEST_TYPE is > 0.
+ * Identifies either a DPIO or a DPCON object.
+ * Not relevant for Tx queues.
+ * @destination.type: May be one of the following:
+ * 0 - No destination, queue can be manually
+ * queried, but will not push traffic or
+ * notifications to a DPIO;
+ * 1 - The destination is a DPIO. When traffic
+ * becomes available in the queue a FQDAN
+ * (FQ data available notification) will be
+ * generated to selected DPIO;
+ * 2 - The destination is a DPCON. The queue is
+ * associated with a DPCON object for the
+ * purpose of scheduling between multiple
+ * queues. The DPCON may be independently
+ * configured to generate notifications.
+ * Not relevant for Tx queues.
+ * @destination.hold_active: Hold active, maintains a queue scheduled for longer
+ * in a DPIO during dequeue to reduce spread of traffic.
+ * Only relevant if queues are
+ * not affined to a single DPIO.
+ * @user_context: User data, presented to the user along with any frames
+ * from this queue. Not relevant for Tx queues.
+ * @flc: FD FLow Context structure
+ * @flc.value: Default FLC value for traffic dequeued from
+ * this queue. Please check description of FD
+ * structure for more information.
+ * Note that FLC values set using dpni_add_fs_entry,
+ * if any, take precedence over values per queue.
+ * @flc.stash_control: Boolean, indicates whether the 6 lowest
+ * - significant bits are used for stash control.
+ * significant bits are used for stash control. If set, the 6
+ * least significant bits in value are interpreted as follows:
+ * - bits 0-1: indicates the number of 64 byte units of context
+ * that are stashed. FLC value is interpreted as a memory address
+ * in this case, excluding the 6 LS bits.
+ * - bits 2-3: indicates the number of 64 byte units of frame
+ * annotation to be stashed. Annotation is placed at FD[ADDR].
+ * - bits 4-5: indicates the number of 64 byte units of frame
+ * data to be stashed. Frame data is placed at FD[ADDR] +
+ * FD[OFFSET].
+ * For more details check the Frame Descriptor section in the
+ * hardware documentation.
+ */
+struct dpni_queue {
+ struct {
+ u16 id;
+ enum dpni_dest type;
+ char hold_active;
+ u8 priority;
+ } destination;
+ u64 user_context;
+ struct {
+ u64 value;
+ char stash_control;
+ } flc;
+};
+
+/**
+ * struct dpni_queue_id - Queue identification, used for enqueue commands
+ * or queue control
+ * @fqid: FQID used for enqueueing to and/or configuration of this specific FQ
+ * @qdbin: Queueing bin, used to enqueue using QDID, DQBIN, QPRI. Only relevant
+ * for Tx queues.
+ */
+struct dpni_queue_id {
+ u32 fqid;
+ u16 qdbin;
+};
+
+/**
+ * Set User Context
+ */
+#define DPNI_QUEUE_OPT_USER_CTX 0x00000001
+#define DPNI_QUEUE_OPT_DEST 0x00000002
+#define DPNI_QUEUE_OPT_FLC 0x00000004
+#define DPNI_QUEUE_OPT_HOLD_ACTIVE 0x00000008
+
+int dpni_set_queue(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ u8 tc,
+ u8 index,
+ u8 options,
+ const struct dpni_queue *queue);
+
+int dpni_get_queue(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_queue_type qtype,
+ u8 tc,
+ u8 index,
+ struct dpni_queue *queue,
+ struct dpni_queue_id *qid);
+
+/**
+ * enum dpni_congestion_unit - DPNI congestion units
+ * @DPNI_CONGESTION_UNIT_BYTES: bytes units
+ * @DPNI_CONGESTION_UNIT_FRAMES: frames units
+ */
+enum dpni_congestion_unit {
+ DPNI_CONGESTION_UNIT_BYTES = 0,
+ DPNI_CONGESTION_UNIT_FRAMES
+};
+
+/**
+ * enum dpni_congestion_point - Structure representing congestion point
+ * @DPNI_CP_QUEUE: Set taildrop per queue, identified by QUEUE_TYPE, TC and
+ * QUEUE_INDEX
+ * @DPNI_CP_GROUP: Set taildrop per queue group. Depending on options used to
+ * define the DPNI this can be either per TC (default) or per
+ * interface (DPNI_OPT_SHARED_CONGESTION set at DPNI create).
+ * QUEUE_INDEX is ignored if this type is used.
+ */
+enum dpni_congestion_point {
+ DPNI_CP_QUEUE,
+ DPNI_CP_GROUP,
+};
+
+/**
+ * struct dpni_taildrop - Structure representing the taildrop
+ * @enable: Indicates whether the taildrop is active or not.
+ * @units: Indicates the unit of THRESHOLD. Queue taildrop only supports
+ * byte units, this field is ignored and assumed = 0 if
+ * CONGESTION_POINT is 0.
+ * @threshold: Threshold value, in units identified by UNITS field. Value 0
+ * cannot be used as a valid taildrop threshold, THRESHOLD must
+ * be > 0 if the taildrop is enabled.
+ */
+struct dpni_taildrop {
+ char enable;
+ enum dpni_congestion_unit units;
+ u32 threshold;
+};
+
+int dpni_set_taildrop(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_congestion_point cg_point,
+ enum dpni_queue_type q_type,
+ u8 tc,
+ u8 q_index,
+ struct dpni_taildrop *taildrop);
+
+int dpni_get_taildrop(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpni_congestion_point cg_point,
+ enum dpni_queue_type q_type,
+ u8 tc,
+ u8 q_index,
+ struct dpni_taildrop *taildrop);
+
+/**
+ * struct dpni_rule_cfg - Rule configuration for table lookup
+ * @key_iova: I/O virtual address of the key (must be in DMA-able memory)
+ * @mask_iova: I/O virtual address of the mask (must be in DMA-able memory)
+ * @key_size: key and mask size (in bytes)
+ */
+struct dpni_rule_cfg {
+ u64 key_iova;
+ u64 mask_iova;
+ u8 key_size;
+};
+
+int dpni_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver);
+
+#endif /* __FSL_DPNI_H */
--- a/drivers/staging/fsl-dpaa2/Kconfig
+++ b/drivers/staging/fsl-dpaa2/Kconfig
@@ -9,14 +9,6 @@ config FSL_DPAA2
Build drivers for Freescale DataPath Acceleration
Architecture (DPAA2) family of SoCs.
-config FSL_DPAA2_ETH
- tristate "Freescale DPAA2 Ethernet"
- depends on FSL_DPAA2 && FSL_MC_DPIO
- depends on NETDEVICES && ETHERNET
- ---help---
- Ethernet driver for Freescale DPAA2 SoCs, using the
- Freescale MC bus driver
-
config FSL_DPAA2_ETHSW
tristate "Freescale DPAA2 Ethernet Switch"
depends on FSL_DPAA2
--- a/drivers/staging/fsl-dpaa2/Makefile
+++ b/drivers/staging/fsl-dpaa2/Makefile
@@ -2,6 +2,5 @@
# Freescale DataPath Acceleration Architecture Gen2 (DPAA2) drivers
#
-obj-$(CONFIG_FSL_DPAA2_ETH) += ethernet/
obj-$(CONFIG_FSL_DPAA2_ETHSW) += ethsw/
obj-$(CONFIG_FSL_DPAA2_PTP_CLOCK) += rtc/
--- a/drivers/staging/fsl-dpaa2/ethernet/Makefile
+++ /dev/null
@@ -1,11 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-#
-# Makefile for the Freescale DPAA2 Ethernet controller
-#
-
-obj-$(CONFIG_FSL_DPAA2_ETH) += fsl-dpaa2-eth.o
-
-fsl-dpaa2-eth-objs := dpaa2-eth.o dpaa2-ethtool.o dpni.o
-
-# Needed by the tracing framework
-CFLAGS_dpaa2-eth.o := -I$(src)
--- a/drivers/staging/fsl-dpaa2/ethernet/TODO
+++ /dev/null
@@ -1,18 +0,0 @@
-* Add a DPAA2 MAC kernel driver in order to allow PHY management; currently
- the DPMAC objects and their link to DPNIs are handled by MC internally
- and all PHYs are seen as fixed-link
-* add more debug support: decide how to expose detailed debug statistics,
- add ingress error queue support
-* MC firmware uprev; the DPAA2 objects used by the Ethernet driver need to
- be kept in sync with binary interface changes in MC
-* refine README file
-* cleanup
-
-NOTE: None of the above is must-have before getting the DPAA2 Ethernet driver
-out of staging. The main requirement for that is to have the drivers it
-depends on, fsl-mc bus and DPIO driver, moved to drivers/bus and drivers/soc
-respectively.
-
- Please send any patches to Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
- ruxandra.radulescu@nxp.com, devel@driverdev.osuosl.org,
- linux-kernel@vger.kernel.org
--- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth-trace.h
+++ /dev/null
@@ -1,158 +0,0 @@
-/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
-/* Copyright 2014-2015 Freescale Semiconductor Inc.
- */
-
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM dpaa2_eth
-
-#if !defined(_DPAA2_ETH_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _DPAA2_ETH_TRACE_H
-
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include "dpaa2-eth.h"
-#include <linux/tracepoint.h>
-
-#define TR_FMT "[%s] fd: addr=0x%llx, len=%u, off=%u"
-/* trace_printk format for raw buffer event class */
-#define TR_BUF_FMT "[%s] vaddr=%p size=%zu dma_addr=%pad map_size=%zu bpid=%d"
-
-/* This is used to declare a class of events.
- * individual events of this type will be defined below.
- */
-
-/* Store details about a frame descriptor */
-DECLARE_EVENT_CLASS(dpaa2_eth_fd,
- /* Trace function prototype */
- TP_PROTO(struct net_device *netdev,
- const struct dpaa2_fd *fd),
-
- /* Repeat argument list here */
- TP_ARGS(netdev, fd),
-
- /* A structure containing the relevant information we want
- * to record. Declare name and type for each normal element,
- * name, type and size for arrays. Use __string for variable
- * length strings.
- */
- TP_STRUCT__entry(
- __field(u64, fd_addr)
- __field(u32, fd_len)
- __field(u16, fd_offset)
- __string(name, netdev->name)
- ),
-
- /* The function that assigns values to the above declared
- * fields
- */
- TP_fast_assign(
- __entry->fd_addr = dpaa2_fd_get_addr(fd);
- __entry->fd_len = dpaa2_fd_get_len(fd);
- __entry->fd_offset = dpaa2_fd_get_offset(fd);
- __assign_str(name, netdev->name);
- ),
-
- /* This is what gets printed when the trace event is
- * triggered.
- */
- TP_printk(TR_FMT,
- __get_str(name),
- __entry->fd_addr,
- __entry->fd_len,
- __entry->fd_offset)
-);
-
-/* Now declare events of the above type. Format is:
- * DEFINE_EVENT(class, name, proto, args), with proto and args same as for class
- */
-
-/* Tx (egress) fd */
-DEFINE_EVENT(dpaa2_eth_fd, dpaa2_tx_fd,
- TP_PROTO(struct net_device *netdev,
- const struct dpaa2_fd *fd),
-
- TP_ARGS(netdev, fd)
-);
-
-/* Rx fd */
-DEFINE_EVENT(dpaa2_eth_fd, dpaa2_rx_fd,
- TP_PROTO(struct net_device *netdev,
- const struct dpaa2_fd *fd),
-
- TP_ARGS(netdev, fd)
-);
-
-/* Tx confirmation fd */
-DEFINE_EVENT(dpaa2_eth_fd, dpaa2_tx_conf_fd,
- TP_PROTO(struct net_device *netdev,
- const struct dpaa2_fd *fd),
-
- TP_ARGS(netdev, fd)
-);
-
-/* Log data about raw buffers. Useful for tracing DPBP content. */
-TRACE_EVENT(dpaa2_eth_buf_seed,
- /* Trace function prototype */
- TP_PROTO(struct net_device *netdev,
- /* virtual address and size */
- void *vaddr,
- size_t size,
- /* dma map address and size */
- dma_addr_t dma_addr,
- size_t map_size,
- /* buffer pool id, if relevant */
- u16 bpid),
-
- /* Repeat argument list here */
- TP_ARGS(netdev, vaddr, size, dma_addr, map_size, bpid),
-
- /* A structure containing the relevant information we want
- * to record. Declare name and type for each normal element,
- * name, type and size for arrays. Use __string for variable
- * length strings.
- */
- TP_STRUCT__entry(
- __field(void *, vaddr)
- __field(size_t, size)
- __field(dma_addr_t, dma_addr)
- __field(size_t, map_size)
- __field(u16, bpid)
- __string(name, netdev->name)
- ),
-
- /* The function that assigns values to the above declared
- * fields
- */
- TP_fast_assign(
- __entry->vaddr = vaddr;
- __entry->size = size;
- __entry->dma_addr = dma_addr;
- __entry->map_size = map_size;
- __entry->bpid = bpid;
- __assign_str(name, netdev->name);
- ),
-
- /* This is what gets printed when the trace event is
- * triggered.
- */
- TP_printk(TR_BUF_FMT,
- __get_str(name),
- __entry->vaddr,
- __entry->size,
- &__entry->dma_addr,
- __entry->map_size,
- __entry->bpid)
-);
-
-/* If only one event of a certain type needs to be declared, use TRACE_EVENT().
- * The syntax is the same as for DECLARE_EVENT_CLASS().
- */
-
-#endif /* _DPAA2_ETH_TRACE_H */
-
-/* This must be outside ifdef _DPAA2_ETH_TRACE_H */
-#undef TRACE_INCLUDE_PATH
-#define TRACE_INCLUDE_PATH .
-#undef TRACE_INCLUDE_FILE
-#define TRACE_INCLUDE_FILE dpaa2-eth-trace
-#include <trace/define_trace.h>
--- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
+++ /dev/null
@@ -1,2654 +0,0 @@
-// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
-/* Copyright 2014-2016 Freescale Semiconductor Inc.
- * Copyright 2016-2017 NXP
- */
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/etherdevice.h>
-#include <linux/of_net.h>
-#include <linux/interrupt.h>
-#include <linux/msi.h>
-#include <linux/kthread.h>
-#include <linux/iommu.h>
-#include <linux/net_tstamp.h>
-#include <linux/fsl/mc.h>
-
-#include <net/sock.h>
-
-#include "dpaa2-eth.h"
-
-/* CREATE_TRACE_POINTS only needs to be defined once. Other dpa files
- * using trace events only need to #include <trace/events/sched.h>
- */
-#define CREATE_TRACE_POINTS
-#include "dpaa2-eth-trace.h"
-
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_AUTHOR("Freescale Semiconductor, Inc");
-MODULE_DESCRIPTION("Freescale DPAA2 Ethernet Driver");
-
-static void *dpaa2_iova_to_virt(struct iommu_domain *domain,
- dma_addr_t iova_addr)
-{
- phys_addr_t phys_addr;
-
- phys_addr = domain ? iommu_iova_to_phys(domain, iova_addr) : iova_addr;
-
- return phys_to_virt(phys_addr);
-}
-
-static void validate_rx_csum(struct dpaa2_eth_priv *priv,
- u32 fd_status,
- struct sk_buff *skb)
-{
- skb_checksum_none_assert(skb);
-
- /* HW checksum validation is disabled, nothing to do here */
- if (!(priv->net_dev->features & NETIF_F_RXCSUM))
- return;
-
- /* Read checksum validation bits */
- if (!((fd_status & DPAA2_FAS_L3CV) &&
- (fd_status & DPAA2_FAS_L4CV)))
- return;
-
- /* Inform the stack there's no need to compute L3/L4 csum anymore */
- skb->ip_summed = CHECKSUM_UNNECESSARY;
-}
-
-/* Free a received FD.
- * Not to be used for Tx conf FDs or on any other paths.
- */
-static void free_rx_fd(struct dpaa2_eth_priv *priv,
- const struct dpaa2_fd *fd,
- void *vaddr)
-{
- struct device *dev = priv->net_dev->dev.parent;
- dma_addr_t addr = dpaa2_fd_get_addr(fd);
- u8 fd_format = dpaa2_fd_get_format(fd);
- struct dpaa2_sg_entry *sgt;
- void *sg_vaddr;
- int i;
-
- /* If single buffer frame, just free the data buffer */
- if (fd_format == dpaa2_fd_single)
- goto free_buf;
- else if (fd_format != dpaa2_fd_sg)
- /* We don't support any other format */
- return;
-
- /* For S/G frames, we first need to free all SG entries
- * except the first one, which was taken care of already
- */
- sgt = vaddr + dpaa2_fd_get_offset(fd);
- for (i = 1; i < DPAA2_ETH_MAX_SG_ENTRIES; i++) {
- addr = dpaa2_sg_get_addr(&sgt[i]);
- sg_vaddr = dpaa2_iova_to_virt(priv->iommu_domain, addr);
- dma_unmap_single(dev, addr, DPAA2_ETH_RX_BUF_SIZE,
- DMA_FROM_DEVICE);
-
- skb_free_frag(sg_vaddr);
- if (dpaa2_sg_is_final(&sgt[i]))
- break;
- }
-
-free_buf:
- skb_free_frag(vaddr);
-}
-
-/* Build a linear skb based on a single-buffer frame descriptor */
-static struct sk_buff *build_linear_skb(struct dpaa2_eth_priv *priv,
- struct dpaa2_eth_channel *ch,
- const struct dpaa2_fd *fd,
- void *fd_vaddr)
-{
- struct sk_buff *skb = NULL;
- u16 fd_offset = dpaa2_fd_get_offset(fd);
- u32 fd_length = dpaa2_fd_get_len(fd);
-
- ch->buf_count--;
-
- skb = build_skb(fd_vaddr, DPAA2_ETH_SKB_SIZE);
- if (unlikely(!skb))
- return NULL;
-
- skb_reserve(skb, fd_offset);
- skb_put(skb, fd_length);
-
- return skb;
-}
-
-/* Build a non linear (fragmented) skb based on a S/G table */
-static struct sk_buff *build_frag_skb(struct dpaa2_eth_priv *priv,
- struct dpaa2_eth_channel *ch,
- struct dpaa2_sg_entry *sgt)
-{
- struct sk_buff *skb = NULL;
- struct device *dev = priv->net_dev->dev.parent;
- void *sg_vaddr;
- dma_addr_t sg_addr;
- u16 sg_offset;
- u32 sg_length;
- struct page *page, *head_page;
- int page_offset;
- int i;
-
- for (i = 0; i < DPAA2_ETH_MAX_SG_ENTRIES; i++) {
- struct dpaa2_sg_entry *sge = &sgt[i];
-
- /* NOTE: We only support SG entries in dpaa2_sg_single format,
- * but this is the only format we may receive from HW anyway
- */
-
- /* Get the address and length from the S/G entry */
- sg_addr = dpaa2_sg_get_addr(sge);
- sg_vaddr = dpaa2_iova_to_virt(priv->iommu_domain, sg_addr);
- dma_unmap_single(dev, sg_addr, DPAA2_ETH_RX_BUF_SIZE,
- DMA_FROM_DEVICE);
-
- sg_length = dpaa2_sg_get_len(sge);
-
- if (i == 0) {
- /* We build the skb around the first data buffer */
- skb = build_skb(sg_vaddr, DPAA2_ETH_SKB_SIZE);
- if (unlikely(!skb)) {
- /* Free the first SG entry now, since we already
- * unmapped it and obtained the virtual address
- */
- skb_free_frag(sg_vaddr);
-
- /* We still need to subtract the buffers used
- * by this FD from our software counter
- */
- while (!dpaa2_sg_is_final(&sgt[i]) &&
- i < DPAA2_ETH_MAX_SG_ENTRIES)
- i++;
- break;
- }
-
- sg_offset = dpaa2_sg_get_offset(sge);
- skb_reserve(skb, sg_offset);
- skb_put(skb, sg_length);
- } else {
- /* Rest of the data buffers are stored as skb frags */
- page = virt_to_page(sg_vaddr);
- head_page = virt_to_head_page(sg_vaddr);
-
- /* Offset in page (which may be compound).
- * Data in subsequent SG entries is stored from the
- * beginning of the buffer, so we don't need to add the
- * sg_offset.
- */
- page_offset = ((unsigned long)sg_vaddr &
- (PAGE_SIZE - 1)) +
- (page_address(page) - page_address(head_page));
-
- skb_add_rx_frag(skb, i - 1, head_page, page_offset,
- sg_length, DPAA2_ETH_RX_BUF_SIZE);
- }
-
- if (dpaa2_sg_is_final(sge))
- break;
- }
-
- WARN_ONCE(i == DPAA2_ETH_MAX_SG_ENTRIES, "Final bit not set in SGT");
-
- /* Count all data buffers + SG table buffer */
- ch->buf_count -= i + 2;
-
- return skb;
-}
-
-/* Main Rx frame processing routine */
-static void dpaa2_eth_rx(struct dpaa2_eth_priv *priv,
- struct dpaa2_eth_channel *ch,
- const struct dpaa2_fd *fd,
- struct napi_struct *napi,
- u16 queue_id)
-{
- dma_addr_t addr = dpaa2_fd_get_addr(fd);
- u8 fd_format = dpaa2_fd_get_format(fd);
- void *vaddr;
- struct sk_buff *skb;
- struct rtnl_link_stats64 *percpu_stats;
- struct dpaa2_eth_drv_stats *percpu_extras;
- struct device *dev = priv->net_dev->dev.parent;
- struct dpaa2_fas *fas;
- void *buf_data;
- u32 status = 0;
-
- /* Tracing point */
- trace_dpaa2_rx_fd(priv->net_dev, fd);
-
- vaddr = dpaa2_iova_to_virt(priv->iommu_domain, addr);
- dma_unmap_single(dev, addr, DPAA2_ETH_RX_BUF_SIZE, DMA_FROM_DEVICE);
-
- fas = dpaa2_get_fas(vaddr, false);
- prefetch(fas);
- buf_data = vaddr + dpaa2_fd_get_offset(fd);
- prefetch(buf_data);
-
- percpu_stats = this_cpu_ptr(priv->percpu_stats);
- percpu_extras = this_cpu_ptr(priv->percpu_extras);
-
- if (fd_format == dpaa2_fd_single) {
- skb = build_linear_skb(priv, ch, fd, vaddr);
- } else if (fd_format == dpaa2_fd_sg) {
- skb = build_frag_skb(priv, ch, buf_data);
- skb_free_frag(vaddr);
- percpu_extras->rx_sg_frames++;
- percpu_extras->rx_sg_bytes += dpaa2_fd_get_len(fd);
- } else {
- /* We don't support any other format */
- goto err_frame_format;
- }
-
- if (unlikely(!skb))
- goto err_build_skb;
-
- prefetch(skb->data);
-
- /* Get the timestamp value */
- if (priv->rx_tstamp) {
- struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb);
- __le64 *ts = dpaa2_get_ts(vaddr, false);
- u64 ns;
-
- memset(shhwtstamps, 0, sizeof(*shhwtstamps));
-
- ns = DPAA2_PTP_CLK_PERIOD_NS * le64_to_cpup(ts);
- shhwtstamps->hwtstamp = ns_to_ktime(ns);
- }
-
- /* Check if we need to validate the L4 csum */
- if (likely(dpaa2_fd_get_frc(fd) & DPAA2_FD_FRC_FASV)) {
- status = le32_to_cpu(fas->status);
- validate_rx_csum(priv, status, skb);
- }
-
- skb->protocol = eth_type_trans(skb, priv->net_dev);
- skb_record_rx_queue(skb, queue_id);
-
- percpu_stats->rx_packets++;
- percpu_stats->rx_bytes += dpaa2_fd_get_len(fd);
-
- napi_gro_receive(napi, skb);
-
- return;
-
-err_build_skb:
- free_rx_fd(priv, fd, vaddr);
-err_frame_format:
- percpu_stats->rx_dropped++;
-}
-
-/* Consume all frames pull-dequeued into the store. This is the simplest way to
- * make sure we don't accidentally issue another volatile dequeue which would
- * overwrite (leak) frames already in the store.
- *
- * Observance of NAPI budget is not our concern, leaving that to the caller.
- */
-static int consume_frames(struct dpaa2_eth_channel *ch)
-{
- struct dpaa2_eth_priv *priv = ch->priv;
- struct dpaa2_eth_fq *fq;
- struct dpaa2_dq *dq;
- const struct dpaa2_fd *fd;
- int cleaned = 0;
- int is_last;
-
- do {
- dq = dpaa2_io_store_next(ch->store, &is_last);
- if (unlikely(!dq)) {
- /* If we're here, we *must* have placed a
- * volatile dequeue comnmand, so keep reading through
- * the store until we get some sort of valid response
- * token (either a valid frame or an "empty dequeue")
- */
- continue;
- }
-
- fd = dpaa2_dq_fd(dq);
- fq = (struct dpaa2_eth_fq *)(uintptr_t)dpaa2_dq_fqd_ctx(dq);
- fq->stats.frames++;
-
- fq->consume(priv, ch, fd, &ch->napi, fq->flowid);
- cleaned++;
- } while (!is_last);
-
- return cleaned;
-}
-
-/* Configure the egress frame annotation for timestamp update */
-static void enable_tx_tstamp(struct dpaa2_fd *fd, void *buf_start)
-{
- struct dpaa2_faead *faead;
- u32 ctrl, frc;
-
- /* Mark the egress frame annotation area as valid */
- frc = dpaa2_fd_get_frc(fd);
- dpaa2_fd_set_frc(fd, frc | DPAA2_FD_FRC_FAEADV);
-
- /* Set hardware annotation size */
- ctrl = dpaa2_fd_get_ctrl(fd);
- dpaa2_fd_set_ctrl(fd, ctrl | DPAA2_FD_CTRL_ASAL);
-
- /* enable UPD (update prepanded data) bit in FAEAD field of
- * hardware frame annotation area
- */
- ctrl = DPAA2_FAEAD_A2V | DPAA2_FAEAD_UPDV | DPAA2_FAEAD_UPD;
- faead = dpaa2_get_faead(buf_start, true);
- faead->ctrl = cpu_to_le32(ctrl);
-}
-
-/* Create a frame descriptor based on a fragmented skb */
-static int build_sg_fd(struct dpaa2_eth_priv *priv,
- struct sk_buff *skb,
- struct dpaa2_fd *fd)
-{
- struct device *dev = priv->net_dev->dev.parent;
- void *sgt_buf = NULL;
- dma_addr_t addr;
- int nr_frags = skb_shinfo(skb)->nr_frags;
- struct dpaa2_sg_entry *sgt;
- int i, err;
- int sgt_buf_size;
- struct scatterlist *scl, *crt_scl;
- int num_sg;
- int num_dma_bufs;
- struct dpaa2_eth_swa *swa;
-
- /* Create and map scatterlist.
- * We don't advertise NETIF_F_FRAGLIST, so skb_to_sgvec() will not have
- * to go beyond nr_frags+1.
- * Note: We don't support chained scatterlists
- */
- if (unlikely(PAGE_SIZE / sizeof(struct scatterlist) < nr_frags + 1))
- return -EINVAL;
-
- scl = kcalloc(nr_frags + 1, sizeof(struct scatterlist), GFP_ATOMIC);
- if (unlikely(!scl))
- return -ENOMEM;
-
- sg_init_table(scl, nr_frags + 1);
- num_sg = skb_to_sgvec(skb, scl, 0, skb->len);
- num_dma_bufs = dma_map_sg(dev, scl, num_sg, DMA_BIDIRECTIONAL);
- if (unlikely(!num_dma_bufs)) {
- err = -ENOMEM;
- goto dma_map_sg_failed;
- }
-
- /* Prepare the HW SGT structure */
- sgt_buf_size = priv->tx_data_offset +
- sizeof(struct dpaa2_sg_entry) * num_dma_bufs;
- sgt_buf = netdev_alloc_frag(sgt_buf_size + DPAA2_ETH_TX_BUF_ALIGN);
- if (unlikely(!sgt_buf)) {
- err = -ENOMEM;
- goto sgt_buf_alloc_failed;
- }
- sgt_buf = PTR_ALIGN(sgt_buf, DPAA2_ETH_TX_BUF_ALIGN);
- memset(sgt_buf, 0, sgt_buf_size);
-
- sgt = (struct dpaa2_sg_entry *)(sgt_buf + priv->tx_data_offset);
-
- /* Fill in the HW SGT structure.
- *
- * sgt_buf is zeroed out, so the following fields are implicit
- * in all sgt entries:
- * - offset is 0
- * - format is 'dpaa2_sg_single'
- */
- for_each_sg(scl, crt_scl, num_dma_bufs, i) {
- dpaa2_sg_set_addr(&sgt[i], sg_dma_address(crt_scl));
- dpaa2_sg_set_len(&sgt[i], sg_dma_len(crt_scl));
- }
- dpaa2_sg_set_final(&sgt[i - 1], true);
-
- /* Store the skb backpointer in the SGT buffer.
- * Fit the scatterlist and the number of buffers alongside the
- * skb backpointer in the software annotation area. We'll need
- * all of them on Tx Conf.
- */
- swa = (struct dpaa2_eth_swa *)sgt_buf;
- swa->skb = skb;
- swa->scl = scl;
- swa->num_sg = num_sg;
- swa->sgt_size = sgt_buf_size;
-
- /* Separately map the SGT buffer */
- addr = dma_map_single(dev, sgt_buf, sgt_buf_size, DMA_BIDIRECTIONAL);
- if (unlikely(dma_mapping_error(dev, addr))) {
- err = -ENOMEM;
- goto dma_map_single_failed;
- }
- dpaa2_fd_set_offset(fd, priv->tx_data_offset);
- dpaa2_fd_set_format(fd, dpaa2_fd_sg);
- dpaa2_fd_set_addr(fd, addr);
- dpaa2_fd_set_len(fd, skb->len);
- dpaa2_fd_set_ctrl(fd, FD_CTRL_PTA | FD_CTRL_PTV1);
-
- if (priv->tx_tstamp && skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)
- enable_tx_tstamp(fd, sgt_buf);
-
- return 0;
-
-dma_map_single_failed:
- skb_free_frag(sgt_buf);
-sgt_buf_alloc_failed:
- dma_unmap_sg(dev, scl, num_sg, DMA_BIDIRECTIONAL);
-dma_map_sg_failed:
- kfree(scl);
- return err;
-}
-
-/* Create a frame descriptor based on a linear skb */
-static int build_single_fd(struct dpaa2_eth_priv *priv,
- struct sk_buff *skb,
- struct dpaa2_fd *fd)
-{
- struct device *dev = priv->net_dev->dev.parent;
- u8 *buffer_start, *aligned_start;
- struct sk_buff **skbh;
- dma_addr_t addr;
-
- buffer_start = skb->data - dpaa2_eth_needed_headroom(priv, skb);
-
- /* If there's enough room to align the FD address, do it.
- * It will help hardware optimize accesses.
- */
- aligned_start = PTR_ALIGN(buffer_start - DPAA2_ETH_TX_BUF_ALIGN,
- DPAA2_ETH_TX_BUF_ALIGN);
- if (aligned_start >= skb->head)
- buffer_start = aligned_start;
-
- /* Store a backpointer to the skb at the beginning of the buffer
- * (in the private data area) such that we can release it
- * on Tx confirm
- */
- skbh = (struct sk_buff **)buffer_start;
- *skbh = skb;
-
- addr = dma_map_single(dev, buffer_start,
- skb_tail_pointer(skb) - buffer_start,
- DMA_BIDIRECTIONAL);
- if (unlikely(dma_mapping_error(dev, addr)))
- return -ENOMEM;
-
- dpaa2_fd_set_addr(fd, addr);
- dpaa2_fd_set_offset(fd, (u16)(skb->data - buffer_start));
- dpaa2_fd_set_len(fd, skb->len);
- dpaa2_fd_set_format(fd, dpaa2_fd_single);
- dpaa2_fd_set_ctrl(fd, FD_CTRL_PTA | FD_CTRL_PTV1);
-
- if (priv->tx_tstamp && skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)
- enable_tx_tstamp(fd, buffer_start);
-
- return 0;
-}
-
-/* FD freeing routine on the Tx path
- *
- * DMA-unmap and free FD and possibly SGT buffer allocated on Tx. The skb
- * back-pointed to is also freed.
- * This can be called either from dpaa2_eth_tx_conf() or on the error path of
- * dpaa2_eth_tx().
- */
-static void free_tx_fd(const struct dpaa2_eth_priv *priv,
- const struct dpaa2_fd *fd)
-{
- struct device *dev = priv->net_dev->dev.parent;
- dma_addr_t fd_addr;
- struct sk_buff **skbh, *skb;
- unsigned char *buffer_start;
- struct dpaa2_eth_swa *swa;
- u8 fd_format = dpaa2_fd_get_format(fd);
-
- fd_addr = dpaa2_fd_get_addr(fd);
- skbh = dpaa2_iova_to_virt(priv->iommu_domain, fd_addr);
-
- if (fd_format == dpaa2_fd_single) {
- skb = *skbh;
- buffer_start = (unsigned char *)skbh;
- /* Accessing the skb buffer is safe before dma unmap, because
- * we didn't map the actual skb shell.
- */
- dma_unmap_single(dev, fd_addr,
- skb_tail_pointer(skb) - buffer_start,
- DMA_BIDIRECTIONAL);
- } else if (fd_format == dpaa2_fd_sg) {
- swa = (struct dpaa2_eth_swa *)skbh;
- skb = swa->skb;
-
- /* Unmap the scatterlist */
- dma_unmap_sg(dev, swa->scl, swa->num_sg, DMA_BIDIRECTIONAL);
- kfree(swa->scl);
-
- /* Unmap the SGT buffer */
- dma_unmap_single(dev, fd_addr, swa->sgt_size,
- DMA_BIDIRECTIONAL);
- } else {
- netdev_dbg(priv->net_dev, "Invalid FD format\n");
- return;
- }
-
- /* Get the timestamp value */
- if (priv->tx_tstamp && skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) {
- struct skb_shared_hwtstamps shhwtstamps;
- __le64 *ts = dpaa2_get_ts(skbh, true);
- u64 ns;
-
- memset(&shhwtstamps, 0, sizeof(shhwtstamps));
-
- ns = DPAA2_PTP_CLK_PERIOD_NS * le64_to_cpup(ts);
- shhwtstamps.hwtstamp = ns_to_ktime(ns);
- skb_tstamp_tx(skb, &shhwtstamps);
- }
-
- /* Free SGT buffer allocated on tx */
- if (fd_format != dpaa2_fd_single)
- skb_free_frag(skbh);
-
- /* Move on with skb release */
- dev_kfree_skb(skb);
-}
-
-static netdev_tx_t dpaa2_eth_tx(struct sk_buff *skb, struct net_device *net_dev)
-{
- struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
- struct dpaa2_fd fd;
- struct rtnl_link_stats64 *percpu_stats;
- struct dpaa2_eth_drv_stats *percpu_extras;
- struct dpaa2_eth_fq *fq;
- u16 queue_mapping;
- unsigned int needed_headroom;
- int err, i;
-
- percpu_stats = this_cpu_ptr(priv->percpu_stats);
- percpu_extras = this_cpu_ptr(priv->percpu_extras);
-
- needed_headroom = dpaa2_eth_needed_headroom(priv, skb);
- if (skb_headroom(skb) < needed_headroom) {
- struct sk_buff *ns;
-
- ns = skb_realloc_headroom(skb, needed_headroom);
- if (unlikely(!ns)) {
- percpu_stats->tx_dropped++;
- goto err_alloc_headroom;
- }
- percpu_extras->tx_reallocs++;
-
- if (skb->sk)
- skb_set_owner_w(ns, skb->sk);
-
- dev_kfree_skb(skb);
- skb = ns;
- }
-
- /* We'll be holding a back-reference to the skb until Tx Confirmation;
- * we don't want that overwritten by a concurrent Tx with a cloned skb.
- */
- skb = skb_unshare(skb, GFP_ATOMIC);
- if (unlikely(!skb)) {
- /* skb_unshare() has already freed the skb */
- percpu_stats->tx_dropped++;
- return NETDEV_TX_OK;
- }
-
- /* Setup the FD fields */
- memset(&fd, 0, sizeof(fd));
-
- if (skb_is_nonlinear(skb)) {
- err = build_sg_fd(priv, skb, &fd);
- percpu_extras->tx_sg_frames++;
- percpu_extras->tx_sg_bytes += skb->len;
- } else {
- err = build_single_fd(priv, skb, &fd);
- }
-
- if (unlikely(err)) {
- percpu_stats->tx_dropped++;
- goto err_build_fd;
- }
-
- /* Tracing point */
- trace_dpaa2_tx_fd(net_dev, &fd);
-
- /* TxConf FQ selection relies on queue id from the stack.
- * In case of a forwarded frame from another DPNI interface, we choose
- * a queue affined to the same core that processed the Rx frame
- */
- queue_mapping = skb_get_queue_mapping(skb);
- fq = &priv->fq[queue_mapping];
- for (i = 0; i < DPAA2_ETH_ENQUEUE_RETRIES; i++) {
- err = dpaa2_io_service_enqueue_qd(fq->channel->dpio,
- priv->tx_qdid, 0,
- fq->tx_qdbin, &fd);
- if (err != -EBUSY)
- break;
- }
- percpu_extras->tx_portal_busy += i;
- if (unlikely(err < 0)) {
- percpu_stats->tx_errors++;
- /* Clean up everything, including freeing the skb */
- free_tx_fd(priv, &fd);
- } else {
- percpu_stats->tx_packets++;
- percpu_stats->tx_bytes += dpaa2_fd_get_len(&fd);
- }
-
- return NETDEV_TX_OK;
-
-err_build_fd:
-err_alloc_headroom:
- dev_kfree_skb(skb);
-
- return NETDEV_TX_OK;
-}
-
-/* Tx confirmation frame processing routine */
-static void dpaa2_eth_tx_conf(struct dpaa2_eth_priv *priv,
- struct dpaa2_eth_channel *ch,
- const struct dpaa2_fd *fd,
- struct napi_struct *napi __always_unused,
- u16 queue_id __always_unused)
-{
- struct rtnl_link_stats64 *percpu_stats;
- struct dpaa2_eth_drv_stats *percpu_extras;
- u32 fd_errors;
-
- /* Tracing point */
- trace_dpaa2_tx_conf_fd(priv->net_dev, fd);
-
- percpu_extras = this_cpu_ptr(priv->percpu_extras);
- percpu_extras->tx_conf_frames++;
- percpu_extras->tx_conf_bytes += dpaa2_fd_get_len(fd);
-
- /* Check frame errors in the FD field */
- fd_errors = dpaa2_fd_get_ctrl(fd) & DPAA2_FD_TX_ERR_MASK;
- free_tx_fd(priv, fd);
-
- if (likely(!fd_errors))
- return;
-
- if (net_ratelimit())
- netdev_dbg(priv->net_dev, "TX frame FD error: 0x%08x\n",
- fd_errors);
-
- percpu_stats = this_cpu_ptr(priv->percpu_stats);
- /* Tx-conf logically pertains to the egress path. */
- percpu_stats->tx_errors++;
-}
-
-static int set_rx_csum(struct dpaa2_eth_priv *priv, bool enable)
-{
- int err;
-
- err = dpni_set_offload(priv->mc_io, 0, priv->mc_token,
- DPNI_OFF_RX_L3_CSUM, enable);
- if (err) {
- netdev_err(priv->net_dev,
- "dpni_set_offload(RX_L3_CSUM) failed\n");
- return err;
- }
-
- err = dpni_set_offload(priv->mc_io, 0, priv->mc_token,
- DPNI_OFF_RX_L4_CSUM, enable);
- if (err) {
- netdev_err(priv->net_dev,
- "dpni_set_offload(RX_L4_CSUM) failed\n");
- return err;
- }
-
- return 0;
-}
-
-static int set_tx_csum(struct dpaa2_eth_priv *priv, bool enable)
-{
- int err;
-
- err = dpni_set_offload(priv->mc_io, 0, priv->mc_token,
- DPNI_OFF_TX_L3_CSUM, enable);
- if (err) {
- netdev_err(priv->net_dev, "dpni_set_offload(TX_L3_CSUM) failed\n");
- return err;
- }
-
- err = dpni_set_offload(priv->mc_io, 0, priv->mc_token,
- DPNI_OFF_TX_L4_CSUM, enable);
- if (err) {
- netdev_err(priv->net_dev, "dpni_set_offload(TX_L4_CSUM) failed\n");
- return err;
- }
-
- return 0;
-}
-
-/* Free buffers acquired from the buffer pool or which were meant to
- * be released in the pool
- */
-static void free_bufs(struct dpaa2_eth_priv *priv, u64 *buf_array, int count)
-{
- struct device *dev = priv->net_dev->dev.parent;
- void *vaddr;
- int i;
-
- for (i = 0; i < count; i++) {
- vaddr = dpaa2_iova_to_virt(priv->iommu_domain, buf_array[i]);
- dma_unmap_single(dev, buf_array[i], DPAA2_ETH_RX_BUF_SIZE,
- DMA_FROM_DEVICE);
- skb_free_frag(vaddr);
- }
-}
-
-/* Perform a single release command to add buffers
- * to the specified buffer pool
- */
-static int add_bufs(struct dpaa2_eth_priv *priv,
- struct dpaa2_eth_channel *ch, u16 bpid)
-{
- struct device *dev = priv->net_dev->dev.parent;
- u64 buf_array[DPAA2_ETH_BUFS_PER_CMD];
- void *buf;
- dma_addr_t addr;
- int i, err;
-
- for (i = 0; i < DPAA2_ETH_BUFS_PER_CMD; i++) {
- /* Allocate buffer visible to WRIOP + skb shared info +
- * alignment padding
- */
- buf = napi_alloc_frag(dpaa2_eth_buf_raw_size(priv));
- if (unlikely(!buf))
- goto err_alloc;
-
- buf = PTR_ALIGN(buf, priv->rx_buf_align);
-
- addr = dma_map_single(dev, buf, DPAA2_ETH_RX_BUF_SIZE,
- DMA_FROM_DEVICE);
- if (unlikely(dma_mapping_error(dev, addr)))
- goto err_map;
-
- buf_array[i] = addr;
-
- /* tracing point */
- trace_dpaa2_eth_buf_seed(priv->net_dev,
- buf, dpaa2_eth_buf_raw_size(priv),
- addr, DPAA2_ETH_RX_BUF_SIZE,
- bpid);
- }
-
-release_bufs:
- /* In case the portal is busy, retry until successful */
- while ((err = dpaa2_io_service_release(ch->dpio, bpid,
- buf_array, i)) == -EBUSY)
- cpu_relax();
-
- /* If release command failed, clean up and bail out;
- * not much else we can do about it
- */
- if (err) {
- free_bufs(priv, buf_array, i);
- return 0;
- }
-
- return i;
-
-err_map:
- skb_free_frag(buf);
-err_alloc:
- /* If we managed to allocate at least some buffers,
- * release them to hardware
- */
- if (i)
- goto release_bufs;
-
- return 0;
-}
-
-static int seed_pool(struct dpaa2_eth_priv *priv, u16 bpid)
-{
- int i, j;
- int new_count;
-
- /* This is the lazy seeding of Rx buffer pools.
- * dpaa2_add_bufs() is also used on the Rx hotpath and calls
- * napi_alloc_frag(). The trouble with that is that it in turn ends up
- * calling this_cpu_ptr(), which mandates execution in atomic context.
- * Rather than splitting up the code, do a one-off preempt disable.
- */
- preempt_disable();
- for (j = 0; j < priv->num_channels; j++) {
- for (i = 0; i < DPAA2_ETH_NUM_BUFS;
- i += DPAA2_ETH_BUFS_PER_CMD) {
- new_count = add_bufs(priv, priv->channel[j], bpid);
- priv->channel[j]->buf_count += new_count;
-
- if (new_count < DPAA2_ETH_BUFS_PER_CMD) {
- preempt_enable();
- return -ENOMEM;
- }
- }
- }
- preempt_enable();
-
- return 0;
-}
-
-/**
- * Drain the specified number of buffers from the DPNI's private buffer pool.
- * @count must not exceeed DPAA2_ETH_BUFS_PER_CMD
- */
-static void drain_bufs(struct dpaa2_eth_priv *priv, int count)
-{
- u64 buf_array[DPAA2_ETH_BUFS_PER_CMD];
- int ret;
-
- do {
- ret = dpaa2_io_service_acquire(NULL, priv->bpid,
- buf_array, count);
- if (ret < 0) {
- netdev_err(priv->net_dev, "dpaa2_io_service_acquire() failed\n");
- return;
- }
- free_bufs(priv, buf_array, ret);
- } while (ret);
-}
-
-static void drain_pool(struct dpaa2_eth_priv *priv)
-{
- int i;
-
- drain_bufs(priv, DPAA2_ETH_BUFS_PER_CMD);
- drain_bufs(priv, 1);
-
- for (i = 0; i < priv->num_channels; i++)
- priv->channel[i]->buf_count = 0;
-}
-
-/* Function is called from softirq context only, so we don't need to guard
- * the access to percpu count
- */
-static int refill_pool(struct dpaa2_eth_priv *priv,
- struct dpaa2_eth_channel *ch,
- u16 bpid)
-{
- int new_count;
-
- if (likely(ch->buf_count >= DPAA2_ETH_REFILL_THRESH))
- return 0;
-
- do {
- new_count = add_bufs(priv, ch, bpid);
- if (unlikely(!new_count)) {
- /* Out of memory; abort for now, we'll try later on */
- break;
- }
- ch->buf_count += new_count;
- } while (ch->buf_count < DPAA2_ETH_NUM_BUFS);
-
- if (unlikely(ch->buf_count < DPAA2_ETH_NUM_BUFS))
- return -ENOMEM;
-
- return 0;
-}
-
-static int pull_channel(struct dpaa2_eth_channel *ch)
-{
- int err;
- int dequeues = -1;
-
- /* Retry while portal is busy */
- do {
- err = dpaa2_io_service_pull_channel(ch->dpio, ch->ch_id,
- ch->store);
- dequeues++;
- cpu_relax();
- } while (err == -EBUSY);
-
- ch->stats.dequeue_portal_busy += dequeues;
- if (unlikely(err))
- ch->stats.pull_err++;
-
- return err;
-}
-
-/* NAPI poll routine
- *
- * Frames are dequeued from the QMan channel associated with this NAPI context.
- * Rx, Tx confirmation and (if configured) Rx error frames all count
- * towards the NAPI budget.
- */
-static int dpaa2_eth_poll(struct napi_struct *napi, int budget)
-{
- struct dpaa2_eth_channel *ch;
- int cleaned = 0, store_cleaned;
- struct dpaa2_eth_priv *priv;
- int err;
-
- ch = container_of(napi, struct dpaa2_eth_channel, napi);
- priv = ch->priv;
-
- while (cleaned < budget) {
- err = pull_channel(ch);
- if (unlikely(err))
- break;
-
- /* Refill pool if appropriate */
- refill_pool(priv, ch, priv->bpid);
-
- store_cleaned = consume_frames(ch);
- cleaned += store_cleaned;
-
- /* If we have enough budget left for a full store,
- * try a new pull dequeue, otherwise we're done here
- */
- if (store_cleaned == 0 ||
- cleaned > budget - DPAA2_ETH_STORE_SIZE)
- break;
- }
-
- if (cleaned < budget && napi_complete_done(napi, cleaned)) {
- /* Re-enable data available notifications */
- do {
- err = dpaa2_io_service_rearm(ch->dpio, &ch->nctx);
- cpu_relax();
- } while (err == -EBUSY);
- WARN_ONCE(err, "CDAN notifications rearm failed on core %d",
- ch->nctx.desired_cpu);
- }
-
- ch->stats.frames += cleaned;
-
- return cleaned;
-}
-
-static void enable_ch_napi(struct dpaa2_eth_priv *priv)
-{
- struct dpaa2_eth_channel *ch;
- int i;
-
- for (i = 0; i < priv->num_channels; i++) {
- ch = priv->channel[i];
- napi_enable(&ch->napi);
- }
-}
-
-static void disable_ch_napi(struct dpaa2_eth_priv *priv)
-{
- struct dpaa2_eth_channel *ch;
- int i;
-
- for (i = 0; i < priv->num_channels; i++) {
- ch = priv->channel[i];
- napi_disable(&ch->napi);
- }
-}
-
-static int link_state_update(struct dpaa2_eth_priv *priv)
-{
- struct dpni_link_state state;
- int err;
-
- err = dpni_get_link_state(priv->mc_io, 0, priv->mc_token, &state);
- if (unlikely(err)) {
- netdev_err(priv->net_dev,
- "dpni_get_link_state() failed\n");
- return err;
- }
-
- /* Chech link state; speed / duplex changes are not treated yet */
- if (priv->link_state.up == state.up)
- return 0;
-
- priv->link_state = state;
- if (state.up) {
- netif_carrier_on(priv->net_dev);
- netif_tx_start_all_queues(priv->net_dev);
- } else {
- netif_tx_stop_all_queues(priv->net_dev);
- netif_carrier_off(priv->net_dev);
- }
-
- netdev_info(priv->net_dev, "Link Event: state %s\n",
- state.up ? "up" : "down");
-
- return 0;
-}
-
-static int dpaa2_eth_open(struct net_device *net_dev)
-{
- struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
- int err;
-
- err = seed_pool(priv, priv->bpid);
- if (err) {
- /* Not much to do; the buffer pool, though not filled up,
- * may still contain some buffers which would enable us
- * to limp on.
- */
- netdev_err(net_dev, "Buffer seeding failed for DPBP %d (bpid=%d)\n",
- priv->dpbp_dev->obj_desc.id, priv->bpid);
- }
-
- /* We'll only start the txqs when the link is actually ready; make sure
- * we don't race against the link up notification, which may come
- * immediately after dpni_enable();
- */
- netif_tx_stop_all_queues(net_dev);
- enable_ch_napi(priv);
- /* Also, explicitly set carrier off, otherwise netif_carrier_ok() will
- * return true and cause 'ip link show' to report the LOWER_UP flag,
- * even though the link notification wasn't even received.
- */
- netif_carrier_off(net_dev);
-
- err = dpni_enable(priv->mc_io, 0, priv->mc_token);
- if (err < 0) {
- netdev_err(net_dev, "dpni_enable() failed\n");
- goto enable_err;
- }
-
- /* If the DPMAC object has already processed the link up interrupt,
- * we have to learn the link state ourselves.
- */
- err = link_state_update(priv);
- if (err < 0) {
- netdev_err(net_dev, "Can't update link state\n");
- goto link_state_err;
- }
-
- return 0;
-
-link_state_err:
-enable_err:
- disable_ch_napi(priv);
- drain_pool(priv);
- return err;
-}
-
-/* The DPIO store must be empty when we call this,
- * at the end of every NAPI cycle.
- */
-static u32 drain_channel(struct dpaa2_eth_priv *priv,
- struct dpaa2_eth_channel *ch)
-{
- u32 drained = 0, total = 0;
-
- do {
- pull_channel(ch);
- drained = consume_frames(ch);
- total += drained;
- } while (drained);
-
- return total;
-}
-
-static u32 drain_ingress_frames(struct dpaa2_eth_priv *priv)
-{
- struct dpaa2_eth_channel *ch;
- int i;
- u32 drained = 0;
-
- for (i = 0; i < priv->num_channels; i++) {
- ch = priv->channel[i];
- drained += drain_channel(priv, ch);
- }
-
- return drained;
-}
-
-static int dpaa2_eth_stop(struct net_device *net_dev)
-{
- struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
- int dpni_enabled;
- int retries = 10;
- u32 drained;
-
- netif_tx_stop_all_queues(net_dev);
- netif_carrier_off(net_dev);
-
- /* Loop while dpni_disable() attempts to drain the egress FQs
- * and confirm them back to us.
- */
- do {
- dpni_disable(priv->mc_io, 0, priv->mc_token);
- dpni_is_enabled(priv->mc_io, 0, priv->mc_token, &dpni_enabled);
- if (dpni_enabled)
- /* Allow the hardware some slack */
- msleep(100);
- } while (dpni_enabled && --retries);
- if (!retries) {
- netdev_warn(net_dev, "Retry count exceeded disabling DPNI\n");
- /* Must go on and disable NAPI nonetheless, so we don't crash at
- * the next "ifconfig up"
- */
- }
-
- /* Wait for NAPI to complete on every core and disable it.
- * In particular, this will also prevent NAPI from being rescheduled if
- * a new CDAN is serviced, effectively discarding the CDAN. We therefore
- * don't even need to disarm the channels, except perhaps for the case
- * of a huge coalescing value.
- */
- disable_ch_napi(priv);
-
- /* Manually drain the Rx and TxConf queues */
- drained = drain_ingress_frames(priv);
- if (drained)
- netdev_dbg(net_dev, "Drained %d frames.\n", drained);
-
- /* Empty the buffer pool */
- drain_pool(priv);
-
- return 0;
-}
-
-static int dpaa2_eth_set_addr(struct net_device *net_dev, void *addr)
-{
- struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
- struct device *dev = net_dev->dev.parent;
- int err;
-
- err = eth_mac_addr(net_dev, addr);
- if (err < 0) {
- dev_err(dev, "eth_mac_addr() failed (%d)\n", err);
- return err;
- }
-
- err = dpni_set_primary_mac_addr(priv->mc_io, 0, priv->mc_token,
- net_dev->dev_addr);
- if (err) {
- dev_err(dev, "dpni_set_primary_mac_addr() failed (%d)\n", err);
- return err;
- }
-
- return 0;
-}
-
-/** Fill in counters maintained by the GPP driver. These may be different from
- * the hardware counters obtained by ethtool.
- */
-static void dpaa2_eth_get_stats(struct net_device *net_dev,
- struct rtnl_link_stats64 *stats)
-{
- struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
- struct rtnl_link_stats64 *percpu_stats;
- u64 *cpustats;
- u64 *netstats = (u64 *)stats;
- int i, j;
- int num = sizeof(struct rtnl_link_stats64) / sizeof(u64);
-
- for_each_possible_cpu(i) {
- percpu_stats = per_cpu_ptr(priv->percpu_stats, i);
- cpustats = (u64 *)percpu_stats;
- for (j = 0; j < num; j++)
- netstats[j] += cpustats[j];
- }
-}
-
-/* Copy mac unicast addresses from @net_dev to @priv.
- * Its sole purpose is to make dpaa2_eth_set_rx_mode() more readable.
- */
-static void add_uc_hw_addr(const struct net_device *net_dev,
- struct dpaa2_eth_priv *priv)
-{
- struct netdev_hw_addr *ha;
- int err;
-
- netdev_for_each_uc_addr(ha, net_dev) {
- err = dpni_add_mac_addr(priv->mc_io, 0, priv->mc_token,
- ha->addr);
- if (err)
- netdev_warn(priv->net_dev,
- "Could not add ucast MAC %pM to the filtering table (err %d)\n",
- ha->addr, err);
- }
-}
-
-/* Copy mac multicast addresses from @net_dev to @priv
- * Its sole purpose is to make dpaa2_eth_set_rx_mode() more readable.
- */
-static void add_mc_hw_addr(const struct net_device *net_dev,
- struct dpaa2_eth_priv *priv)
-{
- struct netdev_hw_addr *ha;
- int err;
-
- netdev_for_each_mc_addr(ha, net_dev) {
- err = dpni_add_mac_addr(priv->mc_io, 0, priv->mc_token,
- ha->addr);
- if (err)
- netdev_warn(priv->net_dev,
- "Could not add mcast MAC %pM to the filtering table (err %d)\n",
- ha->addr, err);
- }
-}
-
-static void dpaa2_eth_set_rx_mode(struct net_device *net_dev)
-{
- struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
- int uc_count = netdev_uc_count(net_dev);
- int mc_count = netdev_mc_count(net_dev);
- u8 max_mac = priv->dpni_attrs.mac_filter_entries;
- u32 options = priv->dpni_attrs.options;
- u16 mc_token = priv->mc_token;
- struct fsl_mc_io *mc_io = priv->mc_io;
- int err;
-
- /* Basic sanity checks; these probably indicate a misconfiguration */
- if (options & DPNI_OPT_NO_MAC_FILTER && max_mac != 0)
- netdev_info(net_dev,
- "mac_filter_entries=%d, DPNI_OPT_NO_MAC_FILTER option must be disabled\n",
- max_mac);
-
- /* Force promiscuous if the uc or mc counts exceed our capabilities. */
- if (uc_count > max_mac) {
- netdev_info(net_dev,
- "Unicast addr count reached %d, max allowed is %d; forcing promisc\n",
- uc_count, max_mac);
- goto force_promisc;
- }
- if (mc_count + uc_count > max_mac) {
- netdev_info(net_dev,
- "Unicast + multicast addr count reached %d, max allowed is %d; forcing promisc\n",
- uc_count + mc_count, max_mac);
- goto force_mc_promisc;
- }
-
- /* Adjust promisc settings due to flag combinations */
- if (net_dev->flags & IFF_PROMISC)
- goto force_promisc;
- if (net_dev->flags & IFF_ALLMULTI) {
- /* First, rebuild unicast filtering table. This should be done
- * in promisc mode, in order to avoid frame loss while we
- * progressively add entries to the table.
- * We don't know whether we had been in promisc already, and
- * making an MC call to find out is expensive; so set uc promisc
- * nonetheless.
- */
- err = dpni_set_unicast_promisc(mc_io, 0, mc_token, 1);
- if (err)
- netdev_warn(net_dev, "Can't set uc promisc\n");
-
- /* Actual uc table reconstruction. */
- err = dpni_clear_mac_filters(mc_io, 0, mc_token, 1, 0);
- if (err)
- netdev_warn(net_dev, "Can't clear uc filters\n");
- add_uc_hw_addr(net_dev, priv);
-
- /* Finally, clear uc promisc and set mc promisc as requested. */
- err = dpni_set_unicast_promisc(mc_io, 0, mc_token, 0);
- if (err)
- netdev_warn(net_dev, "Can't clear uc promisc\n");
- goto force_mc_promisc;
- }
-
- /* Neither unicast, nor multicast promisc will be on... eventually.
- * For now, rebuild mac filtering tables while forcing both of them on.
- */
- err = dpni_set_unicast_promisc(mc_io, 0, mc_token, 1);
- if (err)
- netdev_warn(net_dev, "Can't set uc promisc (%d)\n", err);
- err = dpni_set_multicast_promisc(mc_io, 0, mc_token, 1);
- if (err)
- netdev_warn(net_dev, "Can't set mc promisc (%d)\n", err);
-
- /* Actual mac filtering tables reconstruction */
- err = dpni_clear_mac_filters(mc_io, 0, mc_token, 1, 1);
- if (err)
- netdev_warn(net_dev, "Can't clear mac filters\n");
- add_mc_hw_addr(net_dev, priv);
- add_uc_hw_addr(net_dev, priv);
-
- /* Now we can clear both ucast and mcast promisc, without risking
- * to drop legitimate frames anymore.
- */
- err = dpni_set_unicast_promisc(mc_io, 0, mc_token, 0);
- if (err)
- netdev_warn(net_dev, "Can't clear ucast promisc\n");
- err = dpni_set_multicast_promisc(mc_io, 0, mc_token, 0);
- if (err)
- netdev_warn(net_dev, "Can't clear mcast promisc\n");
-
- return;
-
-force_promisc:
- err = dpni_set_unicast_promisc(mc_io, 0, mc_token, 1);
- if (err)
- netdev_warn(net_dev, "Can't set ucast promisc\n");
-force_mc_promisc:
- err = dpni_set_multicast_promisc(mc_io, 0, mc_token, 1);
- if (err)
- netdev_warn(net_dev, "Can't set mcast promisc\n");
-}
-
-static int dpaa2_eth_set_features(struct net_device *net_dev,
- netdev_features_t features)
-{
- struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
- netdev_features_t changed = features ^ net_dev->features;
- bool enable;
- int err;
-
- if (changed & NETIF_F_RXCSUM) {
- enable = !!(features & NETIF_F_RXCSUM);
- err = set_rx_csum(priv, enable);
- if (err)
- return err;
- }
-
- if (changed & (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM)) {
- enable = !!(features & (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM));
- err = set_tx_csum(priv, enable);
- if (err)
- return err;
- }
-
- return 0;
-}
-
-static int dpaa2_eth_ts_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct dpaa2_eth_priv *priv = netdev_priv(dev);
- struct hwtstamp_config config;
-
- if (copy_from_user(&config, rq->ifr_data, sizeof(config)))
- return -EFAULT;
-
- switch (config.tx_type) {
- case HWTSTAMP_TX_OFF:
- priv->tx_tstamp = false;
- break;
- case HWTSTAMP_TX_ON:
- priv->tx_tstamp = true;
- break;
- default:
- return -ERANGE;
- }
-
- if (config.rx_filter == HWTSTAMP_FILTER_NONE) {
- priv->rx_tstamp = false;
- } else {
- priv->rx_tstamp = true;
- /* TS is set for all frame types, not only those requested */
- config.rx_filter = HWTSTAMP_FILTER_ALL;
- }
-
- return copy_to_user(rq->ifr_data, &config, sizeof(config)) ?
- -EFAULT : 0;
-}
-
-static int dpaa2_eth_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
- if (cmd == SIOCSHWTSTAMP)
- return dpaa2_eth_ts_ioctl(dev, rq, cmd);
-
- return -EINVAL;
-}
-
-static const struct net_device_ops dpaa2_eth_ops = {
- .ndo_open = dpaa2_eth_open,
- .ndo_start_xmit = dpaa2_eth_tx,
- .ndo_stop = dpaa2_eth_stop,
- .ndo_set_mac_address = dpaa2_eth_set_addr,
- .ndo_get_stats64 = dpaa2_eth_get_stats,
- .ndo_set_rx_mode = dpaa2_eth_set_rx_mode,
- .ndo_set_features = dpaa2_eth_set_features,
- .ndo_do_ioctl = dpaa2_eth_ioctl,
-};
-
-static void cdan_cb(struct dpaa2_io_notification_ctx *ctx)
-{
- struct dpaa2_eth_channel *ch;
-
- ch = container_of(ctx, struct dpaa2_eth_channel, nctx);
-
- /* Update NAPI statistics */
- ch->stats.cdan++;
-
- napi_schedule_irqoff(&ch->napi);
-}
-
-/* Allocate and configure a DPCON object */
-static struct fsl_mc_device *setup_dpcon(struct dpaa2_eth_priv *priv)
-{
- struct fsl_mc_device *dpcon;
- struct device *dev = priv->net_dev->dev.parent;
- struct dpcon_attr attrs;
- int err;
-
- err = fsl_mc_object_allocate(to_fsl_mc_device(dev),
- FSL_MC_POOL_DPCON, &dpcon);
- if (err) {
- dev_info(dev, "Not enough DPCONs, will go on as-is\n");
- return NULL;
- }
-
- err = dpcon_open(priv->mc_io, 0, dpcon->obj_desc.id, &dpcon->mc_handle);
- if (err) {
- dev_err(dev, "dpcon_open() failed\n");
- goto free;
- }
-
- err = dpcon_reset(priv->mc_io, 0, dpcon->mc_handle);
- if (err) {
- dev_err(dev, "dpcon_reset() failed\n");
- goto close;
- }
-
- err = dpcon_get_attributes(priv->mc_io, 0, dpcon->mc_handle, &attrs);
- if (err) {
- dev_err(dev, "dpcon_get_attributes() failed\n");
- goto close;
- }
-
- err = dpcon_enable(priv->mc_io, 0, dpcon->mc_handle);
- if (err) {
- dev_err(dev, "dpcon_enable() failed\n");
- goto close;
- }
-
- return dpcon;
-
-close:
- dpcon_close(priv->mc_io, 0, dpcon->mc_handle);
-free:
- fsl_mc_object_free(dpcon);
-
- return NULL;
-}
-
-static void free_dpcon(struct dpaa2_eth_priv *priv,
- struct fsl_mc_device *dpcon)
-{
- dpcon_disable(priv->mc_io, 0, dpcon->mc_handle);
- dpcon_close(priv->mc_io, 0, dpcon->mc_handle);
- fsl_mc_object_free(dpcon);
-}
-
-static struct dpaa2_eth_channel *
-alloc_channel(struct dpaa2_eth_priv *priv)
-{
- struct dpaa2_eth_channel *channel;
- struct dpcon_attr attr;
- struct device *dev = priv->net_dev->dev.parent;
- int err;
-
- channel = kzalloc(sizeof(*channel), GFP_KERNEL);
- if (!channel)
- return NULL;
-
- channel->dpcon = setup_dpcon(priv);
- if (!channel->dpcon)
- goto err_setup;
-
- err = dpcon_get_attributes(priv->mc_io, 0, channel->dpcon->mc_handle,
- &attr);
- if (err) {
- dev_err(dev, "dpcon_get_attributes() failed\n");
- goto err_get_attr;
- }
-
- channel->dpcon_id = attr.id;
- channel->ch_id = attr.qbman_ch_id;
- channel->priv = priv;
-
- return channel;
-
-err_get_attr:
- free_dpcon(priv, channel->dpcon);
-err_setup:
- kfree(channel);
- return NULL;
-}
-
-static void free_channel(struct dpaa2_eth_priv *priv,
- struct dpaa2_eth_channel *channel)
-{
- free_dpcon(priv, channel->dpcon);
- kfree(channel);
-}
-
-/* DPIO setup: allocate and configure QBMan channels, setup core affinity
- * and register data availability notifications
- */
-static int setup_dpio(struct dpaa2_eth_priv *priv)
-{
- struct dpaa2_io_notification_ctx *nctx;
- struct dpaa2_eth_channel *channel;
- struct dpcon_notification_cfg dpcon_notif_cfg;
- struct device *dev = priv->net_dev->dev.parent;
- int i, err;
-
- /* We want the ability to spread ingress traffic (RX, TX conf) to as
- * many cores as possible, so we need one channel for each core
- * (unless there's fewer queues than cores, in which case the extra
- * channels would be wasted).
- * Allocate one channel per core and register it to the core's
- * affine DPIO. If not enough channels are available for all cores
- * or if some cores don't have an affine DPIO, there will be no
- * ingress frame processing on those cores.
- */
- cpumask_clear(&priv->dpio_cpumask);
- for_each_online_cpu(i) {
- /* Try to allocate a channel */
- channel = alloc_channel(priv);
- if (!channel) {
- dev_info(dev,
- "No affine channel for cpu %d and above\n", i);
- err = -ENODEV;
- goto err_alloc_ch;
- }
-
- priv->channel[priv->num_channels] = channel;
-
- nctx = &channel->nctx;
- nctx->is_cdan = 1;
- nctx->cb = cdan_cb;
- nctx->id = channel->ch_id;
- nctx->desired_cpu = i;
-
- /* Register the new context */
- channel->dpio = dpaa2_io_service_select(i);
- err = dpaa2_io_service_register(channel->dpio, nctx);
- if (err) {
- dev_dbg(dev, "No affine DPIO for cpu %d\n", i);
- /* If no affine DPIO for this core, there's probably
- * none available for next cores either. Signal we want
- * to retry later, in case the DPIO devices weren't
- * probed yet.
- */
- err = -EPROBE_DEFER;
- goto err_service_reg;
- }
-
- /* Register DPCON notification with MC */
- dpcon_notif_cfg.dpio_id = nctx->dpio_id;
- dpcon_notif_cfg.priority = 0;
- dpcon_notif_cfg.user_ctx = nctx->qman64;
- err = dpcon_set_notification(priv->mc_io, 0,
- channel->dpcon->mc_handle,
- &dpcon_notif_cfg);
- if (err) {
- dev_err(dev, "dpcon_set_notification failed()\n");
- goto err_set_cdan;
- }
-
- /* If we managed to allocate a channel and also found an affine
- * DPIO for this core, add it to the final mask
- */
- cpumask_set_cpu(i, &priv->dpio_cpumask);
- priv->num_channels++;
-
- /* Stop if we already have enough channels to accommodate all
- * RX and TX conf queues
- */
- if (priv->num_channels == dpaa2_eth_queue_count(priv))
- break;
- }
-
- return 0;
-
-err_set_cdan:
- dpaa2_io_service_deregister(channel->dpio, nctx);
-err_service_reg:
- free_channel(priv, channel);
-err_alloc_ch:
- if (cpumask_empty(&priv->dpio_cpumask)) {
- dev_err(dev, "No cpu with an affine DPIO/DPCON\n");
- return err;
- }
-
- dev_info(dev, "Cores %*pbl available for processing ingress traffic\n",
- cpumask_pr_args(&priv->dpio_cpumask));
-
- return 0;
-}
-
-static void free_dpio(struct dpaa2_eth_priv *priv)
-{
- int i;
- struct dpaa2_eth_channel *ch;
-
- /* deregister CDAN notifications and free channels */
- for (i = 0; i < priv->num_channels; i++) {
- ch = priv->channel[i];
- dpaa2_io_service_deregister(ch->dpio, &ch->nctx);
- free_channel(priv, ch);
- }
-}
-
-static struct dpaa2_eth_channel *get_affine_channel(struct dpaa2_eth_priv *priv,
- int cpu)
-{
- struct device *dev = priv->net_dev->dev.parent;
- int i;
-
- for (i = 0; i < priv->num_channels; i++)
- if (priv->channel[i]->nctx.desired_cpu == cpu)
- return priv->channel[i];
-
- /* We should never get here. Issue a warning and return
- * the first channel, because it's still better than nothing
- */
- dev_warn(dev, "No affine channel found for cpu %d\n", cpu);
-
- return priv->channel[0];
-}
-
-static void set_fq_affinity(struct dpaa2_eth_priv *priv)
-{
- struct device *dev = priv->net_dev->dev.parent;
- struct cpumask xps_mask;
- struct dpaa2_eth_fq *fq;
- int rx_cpu, txc_cpu;
- int i, err;
-
- /* For each FQ, pick one channel/CPU to deliver frames to.
- * This may well change at runtime, either through irqbalance or
- * through direct user intervention.
- */
- rx_cpu = txc_cpu = cpumask_first(&priv->dpio_cpumask);
-
- for (i = 0; i < priv->num_fqs; i++) {
- fq = &priv->fq[i];
- switch (fq->type) {
- case DPAA2_RX_FQ:
- fq->target_cpu = rx_cpu;
- rx_cpu = cpumask_next(rx_cpu, &priv->dpio_cpumask);
- if (rx_cpu >= nr_cpu_ids)
- rx_cpu = cpumask_first(&priv->dpio_cpumask);
- break;
- case DPAA2_TX_CONF_FQ:
- fq->target_cpu = txc_cpu;
-
- /* Tell the stack to affine to txc_cpu the Tx queue
- * associated with the confirmation one
- */
- cpumask_clear(&xps_mask);
- cpumask_set_cpu(txc_cpu, &xps_mask);
- err = netif_set_xps_queue(priv->net_dev, &xps_mask,
- fq->flowid);
- if (err)
- dev_err(dev, "Error setting XPS queue\n");
-
- txc_cpu = cpumask_next(txc_cpu, &priv->dpio_cpumask);
- if (txc_cpu >= nr_cpu_ids)
- txc_cpu = cpumask_first(&priv->dpio_cpumask);
- break;
- default:
- dev_err(dev, "Unknown FQ type: %d\n", fq->type);
- }
- fq->channel = get_affine_channel(priv, fq->target_cpu);
- }
-}
-
-static void setup_fqs(struct dpaa2_eth_priv *priv)
-{
- int i;
-
- /* We have one TxConf FQ per Tx flow.
- * The number of Tx and Rx queues is the same.
- * Tx queues come first in the fq array.
- */
- for (i = 0; i < dpaa2_eth_queue_count(priv); i++) {
- priv->fq[priv->num_fqs].type = DPAA2_TX_CONF_FQ;
- priv->fq[priv->num_fqs].consume = dpaa2_eth_tx_conf;
- priv->fq[priv->num_fqs++].flowid = (u16)i;
- }
-
- for (i = 0; i < dpaa2_eth_queue_count(priv); i++) {
- priv->fq[priv->num_fqs].type = DPAA2_RX_FQ;
- priv->fq[priv->num_fqs].consume = dpaa2_eth_rx;
- priv->fq[priv->num_fqs++].flowid = (u16)i;
- }
-
- /* For each FQ, decide on which core to process incoming frames */
- set_fq_affinity(priv);
-}
-
-/* Allocate and configure one buffer pool for each interface */
-static int setup_dpbp(struct dpaa2_eth_priv *priv)
-{
- int err;
- struct fsl_mc_device *dpbp_dev;
- struct device *dev = priv->net_dev->dev.parent;
- struct dpbp_attr dpbp_attrs;
-
- err = fsl_mc_object_allocate(to_fsl_mc_device(dev), FSL_MC_POOL_DPBP,
- &dpbp_dev);
- if (err) {
- dev_err(dev, "DPBP device allocation failed\n");
- return err;
- }
-
- priv->dpbp_dev = dpbp_dev;
-
- err = dpbp_open(priv->mc_io, 0, priv->dpbp_dev->obj_desc.id,
- &dpbp_dev->mc_handle);
- if (err) {
- dev_err(dev, "dpbp_open() failed\n");
- goto err_open;
- }
-
- err = dpbp_reset(priv->mc_io, 0, dpbp_dev->mc_handle);
- if (err) {
- dev_err(dev, "dpbp_reset() failed\n");
- goto err_reset;
- }
-
- err = dpbp_enable(priv->mc_io, 0, dpbp_dev->mc_handle);
- if (err) {
- dev_err(dev, "dpbp_enable() failed\n");
- goto err_enable;
- }
-
- err = dpbp_get_attributes(priv->mc_io, 0, dpbp_dev->mc_handle,
- &dpbp_attrs);
- if (err) {
- dev_err(dev, "dpbp_get_attributes() failed\n");
- goto err_get_attr;
- }
- priv->bpid = dpbp_attrs.bpid;
-
- return 0;
-
-err_get_attr:
- dpbp_disable(priv->mc_io, 0, dpbp_dev->mc_handle);
-err_enable:
-err_reset:
- dpbp_close(priv->mc_io, 0, dpbp_dev->mc_handle);
-err_open:
- fsl_mc_object_free(dpbp_dev);
-
- return err;
-}
-
-static void free_dpbp(struct dpaa2_eth_priv *priv)
-{
- drain_pool(priv);
- dpbp_disable(priv->mc_io, 0, priv->dpbp_dev->mc_handle);
- dpbp_close(priv->mc_io, 0, priv->dpbp_dev->mc_handle);
- fsl_mc_object_free(priv->dpbp_dev);
-}
-
-static int set_buffer_layout(struct dpaa2_eth_priv *priv)
-{
- struct device *dev = priv->net_dev->dev.parent;
- struct dpni_buffer_layout buf_layout = {0};
- int err;
-
- /* We need to check for WRIOP version 1.0.0, but depending on the MC
- * version, this number is not always provided correctly on rev1.
- * We need to check for both alternatives in this situation.
- */
- if (priv->dpni_attrs.wriop_version == DPAA2_WRIOP_VERSION(0, 0, 0) ||
- priv->dpni_attrs.wriop_version == DPAA2_WRIOP_VERSION(1, 0, 0))
- priv->rx_buf_align = DPAA2_ETH_RX_BUF_ALIGN_REV1;
- else
- priv->rx_buf_align = DPAA2_ETH_RX_BUF_ALIGN;
-
- /* tx buffer */
- buf_layout.private_data_size = DPAA2_ETH_SWA_SIZE;
- buf_layout.pass_timestamp = true;
- buf_layout.options = DPNI_BUF_LAYOUT_OPT_PRIVATE_DATA_SIZE |
- DPNI_BUF_LAYOUT_OPT_TIMESTAMP;
- err = dpni_set_buffer_layout(priv->mc_io, 0, priv->mc_token,
- DPNI_QUEUE_TX, &buf_layout);
- if (err) {
- dev_err(dev, "dpni_set_buffer_layout(TX) failed\n");
- return err;
- }
-
- /* tx-confirm buffer */
- buf_layout.options = DPNI_BUF_LAYOUT_OPT_TIMESTAMP;
- err = dpni_set_buffer_layout(priv->mc_io, 0, priv->mc_token,
- DPNI_QUEUE_TX_CONFIRM, &buf_layout);
- if (err) {
- dev_err(dev, "dpni_set_buffer_layout(TX_CONF) failed\n");
- return err;
- }
-
- /* Now that we've set our tx buffer layout, retrieve the minimum
- * required tx data offset.
- */
- err = dpni_get_tx_data_offset(priv->mc_io, 0, priv->mc_token,
- &priv->tx_data_offset);
- if (err) {
- dev_err(dev, "dpni_get_tx_data_offset() failed\n");
- return err;
- }
-
- if ((priv->tx_data_offset % 64) != 0)
- dev_warn(dev, "Tx data offset (%d) not a multiple of 64B\n",
- priv->tx_data_offset);
-
- /* rx buffer */
- buf_layout.pass_frame_status = true;
- buf_layout.pass_parser_result = true;
- buf_layout.data_align = priv->rx_buf_align;
- buf_layout.data_head_room = dpaa2_eth_rx_head_room(priv);
- buf_layout.private_data_size = 0;
- buf_layout.options = DPNI_BUF_LAYOUT_OPT_PARSER_RESULT |
- DPNI_BUF_LAYOUT_OPT_FRAME_STATUS |
- DPNI_BUF_LAYOUT_OPT_DATA_ALIGN |
- DPNI_BUF_LAYOUT_OPT_DATA_HEAD_ROOM |
- DPNI_BUF_LAYOUT_OPT_TIMESTAMP;
- err = dpni_set_buffer_layout(priv->mc_io, 0, priv->mc_token,
- DPNI_QUEUE_RX, &buf_layout);
- if (err) {
- dev_err(dev, "dpni_set_buffer_layout(RX) failed\n");
- return err;
- }
-
- return 0;
-}
-
-/* Configure the DPNI object this interface is associated with */
-static int setup_dpni(struct fsl_mc_device *ls_dev)
-{
- struct device *dev = &ls_dev->dev;
- struct dpaa2_eth_priv *priv;
- struct net_device *net_dev;
- int err;
-
- net_dev = dev_get_drvdata(dev);
- priv = netdev_priv(net_dev);
-
- /* get a handle for the DPNI object */
- err = dpni_open(priv->mc_io, 0, ls_dev->obj_desc.id, &priv->mc_token);
- if (err) {
- dev_err(dev, "dpni_open() failed\n");
- return err;
- }
-
- /* Check if we can work with this DPNI object */
- err = dpni_get_api_version(priv->mc_io, 0, &priv->dpni_ver_major,
- &priv->dpni_ver_minor);
- if (err) {
- dev_err(dev, "dpni_get_api_version() failed\n");
- goto close;
- }
- if (dpaa2_eth_cmp_dpni_ver(priv, DPNI_VER_MAJOR, DPNI_VER_MINOR) < 0) {
- dev_err(dev, "DPNI version %u.%u not supported, need >= %u.%u\n",
- priv->dpni_ver_major, priv->dpni_ver_minor,
- DPNI_VER_MAJOR, DPNI_VER_MINOR);
- err = -ENOTSUPP;
- goto close;
- }
-
- ls_dev->mc_io = priv->mc_io;
- ls_dev->mc_handle = priv->mc_token;
-
- err = dpni_reset(priv->mc_io, 0, priv->mc_token);
- if (err) {
- dev_err(dev, "dpni_reset() failed\n");
- goto close;
- }
-
- err = dpni_get_attributes(priv->mc_io, 0, priv->mc_token,
- &priv->dpni_attrs);
- if (err) {
- dev_err(dev, "dpni_get_attributes() failed (err=%d)\n", err);
- goto close;
- }
-
- err = set_buffer_layout(priv);
- if (err)
- goto close;
-
- return 0;
-
-close:
- dpni_close(priv->mc_io, 0, priv->mc_token);
-
- return err;
-}
-
-static void free_dpni(struct dpaa2_eth_priv *priv)
-{
- int err;
-
- err = dpni_reset(priv->mc_io, 0, priv->mc_token);
- if (err)
- netdev_warn(priv->net_dev, "dpni_reset() failed (err %d)\n",
- err);
-
- dpni_close(priv->mc_io, 0, priv->mc_token);
-}
-
-static int setup_rx_flow(struct dpaa2_eth_priv *priv,
- struct dpaa2_eth_fq *fq)
-{
- struct device *dev = priv->net_dev->dev.parent;
- struct dpni_queue queue;
- struct dpni_queue_id qid;
- struct dpni_taildrop td;
- int err;
-
- err = dpni_get_queue(priv->mc_io, 0, priv->mc_token,
- DPNI_QUEUE_RX, 0, fq->flowid, &queue, &qid);
- if (err) {
- dev_err(dev, "dpni_get_queue(RX) failed\n");
- return err;
- }
-
- fq->fqid = qid.fqid;
-
- queue.destination.id = fq->channel->dpcon_id;
- queue.destination.type = DPNI_DEST_DPCON;
- queue.destination.priority = 1;
- queue.user_context = (u64)(uintptr_t)fq;
- err = dpni_set_queue(priv->mc_io, 0, priv->mc_token,
- DPNI_QUEUE_RX, 0, fq->flowid,
- DPNI_QUEUE_OPT_USER_CTX | DPNI_QUEUE_OPT_DEST,
- &queue);
- if (err) {
- dev_err(dev, "dpni_set_queue(RX) failed\n");
- return err;
- }
-
- td.enable = 1;
- td.threshold = DPAA2_ETH_TAILDROP_THRESH;
- err = dpni_set_taildrop(priv->mc_io, 0, priv->mc_token, DPNI_CP_QUEUE,
- DPNI_QUEUE_RX, 0, fq->flowid, &td);
- if (err) {
- dev_err(dev, "dpni_set_threshold() failed\n");
- return err;
- }
-
- return 0;
-}
-
-static int setup_tx_flow(struct dpaa2_eth_priv *priv,
- struct dpaa2_eth_fq *fq)
-{
- struct device *dev = priv->net_dev->dev.parent;
- struct dpni_queue queue;
- struct dpni_queue_id qid;
- int err;
-
- err = dpni_get_queue(priv->mc_io, 0, priv->mc_token,
- DPNI_QUEUE_TX, 0, fq->flowid, &queue, &qid);
- if (err) {
- dev_err(dev, "dpni_get_queue(TX) failed\n");
- return err;
- }
-
- fq->tx_qdbin = qid.qdbin;
-
- err = dpni_get_queue(priv->mc_io, 0, priv->mc_token,
- DPNI_QUEUE_TX_CONFIRM, 0, fq->flowid,
- &queue, &qid);
- if (err) {
- dev_err(dev, "dpni_get_queue(TX_CONF) failed\n");
- return err;
- }
-
- fq->fqid = qid.fqid;
-
- queue.destination.id = fq->channel->dpcon_id;
- queue.destination.type = DPNI_DEST_DPCON;
- queue.destination.priority = 0;
- queue.user_context = (u64)(uintptr_t)fq;
- err = dpni_set_queue(priv->mc_io, 0, priv->mc_token,
- DPNI_QUEUE_TX_CONFIRM, 0, fq->flowid,
- DPNI_QUEUE_OPT_USER_CTX | DPNI_QUEUE_OPT_DEST,
- &queue);
- if (err) {
- dev_err(dev, "dpni_set_queue(TX_CONF) failed\n");
- return err;
- }
-
- return 0;
-}
-
-/* Hash key is a 5-tuple: IPsrc, IPdst, IPnextproto, L4src, L4dst */
-static const struct dpaa2_eth_hash_fields hash_fields[] = {
- {
- /* IP header */
- .rxnfc_field = RXH_IP_SRC,
- .cls_prot = NET_PROT_IP,
- .cls_field = NH_FLD_IP_SRC,
- .size = 4,
- }, {
- .rxnfc_field = RXH_IP_DST,
- .cls_prot = NET_PROT_IP,
- .cls_field = NH_FLD_IP_DST,
- .size = 4,
- }, {
- .rxnfc_field = RXH_L3_PROTO,
- .cls_prot = NET_PROT_IP,
- .cls_field = NH_FLD_IP_PROTO,
- .size = 1,
- }, {
- /* Using UDP ports, this is functionally equivalent to raw
- * byte pairs from L4 header.
- */
- .rxnfc_field = RXH_L4_B_0_1,
- .cls_prot = NET_PROT_UDP,
- .cls_field = NH_FLD_UDP_PORT_SRC,
- .size = 2,
- }, {
- .rxnfc_field = RXH_L4_B_2_3,
- .cls_prot = NET_PROT_UDP,
- .cls_field = NH_FLD_UDP_PORT_DST,
- .size = 2,
- },
-};
-
-/* Set RX hash options
- * flags is a combination of RXH_ bits
- */
-static int dpaa2_eth_set_hash(struct net_device *net_dev, u64 flags)
-{
- struct device *dev = net_dev->dev.parent;
- struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
- struct dpkg_profile_cfg cls_cfg;
- struct dpni_rx_tc_dist_cfg dist_cfg;
- u8 *dma_mem;
- int i;
- int err = 0;
-
- if (!dpaa2_eth_hash_enabled(priv)) {
- dev_dbg(dev, "Hashing support is not enabled\n");
- return 0;
- }
-
- memset(&cls_cfg, 0, sizeof(cls_cfg));
-
- for (i = 0; i < ARRAY_SIZE(hash_fields); i++) {
- struct dpkg_extract *key =
- &cls_cfg.extracts[cls_cfg.num_extracts];
-
- if (!(flags & hash_fields[i].rxnfc_field))
- continue;
-
- if (cls_cfg.num_extracts >= DPKG_MAX_NUM_OF_EXTRACTS) {
- dev_err(dev, "error adding key extraction rule, too many rules?\n");
- return -E2BIG;
- }
-
- key->type = DPKG_EXTRACT_FROM_HDR;
- key->extract.from_hdr.prot = hash_fields[i].cls_prot;
- key->extract.from_hdr.type = DPKG_FULL_FIELD;
- key->extract.from_hdr.field = hash_fields[i].cls_field;
- cls_cfg.num_extracts++;
-
- priv->rx_hash_fields |= hash_fields[i].rxnfc_field;
- }
-
- dma_mem = kzalloc(DPAA2_CLASSIFIER_DMA_SIZE, GFP_KERNEL);
- if (!dma_mem)
- return -ENOMEM;
-
- err = dpni_prepare_key_cfg(&cls_cfg, dma_mem);
- if (err) {
- dev_err(dev, "dpni_prepare_key_cfg error %d\n", err);
- goto err_prep_key;
- }
-
- memset(&dist_cfg, 0, sizeof(dist_cfg));
-
- /* Prepare for setting the rx dist */
- dist_cfg.key_cfg_iova = dma_map_single(dev, dma_mem,
- DPAA2_CLASSIFIER_DMA_SIZE,
- DMA_TO_DEVICE);
- if (dma_mapping_error(dev, dist_cfg.key_cfg_iova)) {
- dev_err(dev, "DMA mapping failed\n");
- err = -ENOMEM;
- goto err_dma_map;
- }
-
- dist_cfg.dist_size = dpaa2_eth_queue_count(priv);
- dist_cfg.dist_mode = DPNI_DIST_MODE_HASH;
-
- err = dpni_set_rx_tc_dist(priv->mc_io, 0, priv->mc_token, 0, &dist_cfg);
- dma_unmap_single(dev, dist_cfg.key_cfg_iova,
- DPAA2_CLASSIFIER_DMA_SIZE, DMA_TO_DEVICE);
- if (err)
- dev_err(dev, "dpni_set_rx_tc_dist() error %d\n", err);
-
-err_dma_map:
-err_prep_key:
- kfree(dma_mem);
- return err;
-}
-
-/* Bind the DPNI to its needed objects and resources: buffer pool, DPIOs,
- * frame queues and channels
- */
-static int bind_dpni(struct dpaa2_eth_priv *priv)
-{
- struct net_device *net_dev = priv->net_dev;
- struct device *dev = net_dev->dev.parent;
- struct dpni_pools_cfg pools_params;
- struct dpni_error_cfg err_cfg;
- int err = 0;
- int i;
-
- pools_params.num_dpbp = 1;
- pools_params.pools[0].dpbp_id = priv->dpbp_dev->obj_desc.id;
- pools_params.pools[0].backup_pool = 0;
- pools_params.pools[0].buffer_size = DPAA2_ETH_RX_BUF_SIZE;
- err = dpni_set_pools(priv->mc_io, 0, priv->mc_token, &pools_params);
- if (err) {
- dev_err(dev, "dpni_set_pools() failed\n");
- return err;
- }
-
- /* have the interface implicitly distribute traffic based on
- * the default hash key
- */
- err = dpaa2_eth_set_hash(net_dev, DPAA2_RXH_DEFAULT);
- if (err)
- dev_err(dev, "Failed to configure hashing\n");
-
- /* Configure handling of error frames */
- err_cfg.errors = DPAA2_FAS_RX_ERR_MASK;
- err_cfg.set_frame_annotation = 1;
- err_cfg.error_action = DPNI_ERROR_ACTION_DISCARD;
- err = dpni_set_errors_behavior(priv->mc_io, 0, priv->mc_token,
- &err_cfg);
- if (err) {
- dev_err(dev, "dpni_set_errors_behavior failed\n");
- return err;
- }
-
- /* Configure Rx and Tx conf queues to generate CDANs */
- for (i = 0; i < priv->num_fqs; i++) {
- switch (priv->fq[i].type) {
- case DPAA2_RX_FQ:
- err = setup_rx_flow(priv, &priv->fq[i]);
- break;
- case DPAA2_TX_CONF_FQ:
- err = setup_tx_flow(priv, &priv->fq[i]);
- break;
- default:
- dev_err(dev, "Invalid FQ type %d\n", priv->fq[i].type);
- return -EINVAL;
- }
- if (err)
- return err;
- }
-
- err = dpni_get_qdid(priv->mc_io, 0, priv->mc_token,
- DPNI_QUEUE_TX, &priv->tx_qdid);
- if (err) {
- dev_err(dev, "dpni_get_qdid() failed\n");
- return err;
- }
-
- return 0;
-}
-
-/* Allocate rings for storing incoming frame descriptors */
-static int alloc_rings(struct dpaa2_eth_priv *priv)
-{
- struct net_device *net_dev = priv->net_dev;
- struct device *dev = net_dev->dev.parent;
- int i;
-
- for (i = 0; i < priv->num_channels; i++) {
- priv->channel[i]->store =
- dpaa2_io_store_create(DPAA2_ETH_STORE_SIZE, dev);
- if (!priv->channel[i]->store) {
- netdev_err(net_dev, "dpaa2_io_store_create() failed\n");
- goto err_ring;
- }
- }
-
- return 0;
-
-err_ring:
- for (i = 0; i < priv->num_channels; i++) {
- if (!priv->channel[i]->store)
- break;
- dpaa2_io_store_destroy(priv->channel[i]->store);
- }
-
- return -ENOMEM;
-}
-
-static void free_rings(struct dpaa2_eth_priv *priv)
-{
- int i;
-
- for (i = 0; i < priv->num_channels; i++)
- dpaa2_io_store_destroy(priv->channel[i]->store);
-}
-
-static int set_mac_addr(struct dpaa2_eth_priv *priv)
-{
- struct net_device *net_dev = priv->net_dev;
- struct device *dev = net_dev->dev.parent;
- u8 mac_addr[ETH_ALEN], dpni_mac_addr[ETH_ALEN];
- int err;
-
- /* Get firmware address, if any */
- err = dpni_get_port_mac_addr(priv->mc_io, 0, priv->mc_token, mac_addr);
- if (err) {
- dev_err(dev, "dpni_get_port_mac_addr() failed\n");
- return err;
- }
-
- /* Get DPNI attributes address, if any */
- err = dpni_get_primary_mac_addr(priv->mc_io, 0, priv->mc_token,
- dpni_mac_addr);
- if (err) {
- dev_err(dev, "dpni_get_primary_mac_addr() failed\n");
- return err;
- }
-
- /* First check if firmware has any address configured by bootloader */
- if (!is_zero_ether_addr(mac_addr)) {
- /* If the DPMAC addr != DPNI addr, update it */
- if (!ether_addr_equal(mac_addr, dpni_mac_addr)) {
- err = dpni_set_primary_mac_addr(priv->mc_io, 0,
- priv->mc_token,
- mac_addr);
- if (err) {
- dev_err(dev, "dpni_set_primary_mac_addr() failed\n");
- return err;
- }
- }
- memcpy(net_dev->dev_addr, mac_addr, net_dev->addr_len);
- } else if (is_zero_ether_addr(dpni_mac_addr)) {
- /* No MAC address configured, fill in net_dev->dev_addr
- * with a random one
- */
- eth_hw_addr_random(net_dev);
- dev_dbg_once(dev, "device(s) have all-zero hwaddr, replaced with random\n");
-
- err = dpni_set_primary_mac_addr(priv->mc_io, 0, priv->mc_token,
- net_dev->dev_addr);
- if (err) {
- dev_err(dev, "dpni_set_primary_mac_addr() failed\n");
- return err;
- }
-
- /* Override NET_ADDR_RANDOM set by eth_hw_addr_random(); for all
- * practical purposes, this will be our "permanent" mac address,
- * at least until the next reboot. This move will also permit
- * register_netdevice() to properly fill up net_dev->perm_addr.
- */
- net_dev->addr_assign_type = NET_ADDR_PERM;
- } else {
- /* NET_ADDR_PERM is default, all we have to do is
- * fill in the device addr.
- */
- memcpy(net_dev->dev_addr, dpni_mac_addr, net_dev->addr_len);
- }
-
- return 0;
-}
-
-static int netdev_init(struct net_device *net_dev)
-{
- struct device *dev = net_dev->dev.parent;
- struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
- u32 options = priv->dpni_attrs.options;
- u64 supported = 0, not_supported = 0;
- u8 bcast_addr[ETH_ALEN];
- u8 num_queues;
- int err;
-
- net_dev->netdev_ops = &dpaa2_eth_ops;
- net_dev->ethtool_ops = &dpaa2_ethtool_ops;
-
- err = set_mac_addr(priv);
- if (err)
- return err;
-
- /* Explicitly add the broadcast address to the MAC filtering table */
- eth_broadcast_addr(bcast_addr);
- err = dpni_add_mac_addr(priv->mc_io, 0, priv->mc_token, bcast_addr);
- if (err) {
- dev_err(dev, "dpni_add_mac_addr() failed\n");
- return err;
- }
-
- /* Set MTU upper limit; lower limit is 68B (default value) */
- net_dev->max_mtu = DPAA2_ETH_MAX_MTU;
- err = dpni_set_max_frame_length(priv->mc_io, 0, priv->mc_token,
- DPAA2_ETH_MFL);
- if (err) {
- dev_err(dev, "dpni_set_max_frame_length() failed\n");
- return err;
- }
-
- /* Set actual number of queues in the net device */
- num_queues = dpaa2_eth_queue_count(priv);
- err = netif_set_real_num_tx_queues(net_dev, num_queues);
- if (err) {
- dev_err(dev, "netif_set_real_num_tx_queues() failed\n");
- return err;
- }
- err = netif_set_real_num_rx_queues(net_dev, num_queues);
- if (err) {
- dev_err(dev, "netif_set_real_num_rx_queues() failed\n");
- return err;
- }
-
- /* Capabilities listing */
- supported |= IFF_LIVE_ADDR_CHANGE;
-
- if (options & DPNI_OPT_NO_MAC_FILTER)
- not_supported |= IFF_UNICAST_FLT;
- else
- supported |= IFF_UNICAST_FLT;
-
- net_dev->priv_flags |= supported;
- net_dev->priv_flags &= ~not_supported;
-
- /* Features */
- net_dev->features = NETIF_F_RXCSUM |
- NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
- NETIF_F_SG | NETIF_F_HIGHDMA |
- NETIF_F_LLTX;
- net_dev->hw_features = net_dev->features;
-
- return 0;
-}
-
-static int poll_link_state(void *arg)
-{
- struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)arg;
- int err;
-
- while (!kthread_should_stop()) {
- err = link_state_update(priv);
- if (unlikely(err))
- return err;
-
- msleep(DPAA2_ETH_LINK_STATE_REFRESH);
- }
-
- return 0;
-}
-
-static irqreturn_t dpni_irq0_handler_thread(int irq_num, void *arg)
-{
- u32 status = ~0;
- struct device *dev = (struct device *)arg;
- struct fsl_mc_device *dpni_dev = to_fsl_mc_device(dev);
- struct net_device *net_dev = dev_get_drvdata(dev);
- int err;
-
- err = dpni_get_irq_status(dpni_dev->mc_io, 0, dpni_dev->mc_handle,
- DPNI_IRQ_INDEX, &status);
- if (unlikely(err)) {
- netdev_err(net_dev, "Can't get irq status (err %d)\n", err);
- return IRQ_HANDLED;
- }
-
- if (status & DPNI_IRQ_EVENT_LINK_CHANGED)
- link_state_update(netdev_priv(net_dev));
-
- return IRQ_HANDLED;
-}
-
-static int setup_irqs(struct fsl_mc_device *ls_dev)
-{
- int err = 0;
- struct fsl_mc_device_irq *irq;
-
- err = fsl_mc_allocate_irqs(ls_dev);
- if (err) {
- dev_err(&ls_dev->dev, "MC irqs allocation failed\n");
- return err;
- }
-
- irq = ls_dev->irqs[0];
- err = devm_request_threaded_irq(&ls_dev->dev, irq->msi_desc->irq,
- NULL, dpni_irq0_handler_thread,
- IRQF_NO_SUSPEND | IRQF_ONESHOT,
- dev_name(&ls_dev->dev), &ls_dev->dev);
- if (err < 0) {
- dev_err(&ls_dev->dev, "devm_request_threaded_irq(): %d\n", err);
- goto free_mc_irq;
- }
-
- err = dpni_set_irq_mask(ls_dev->mc_io, 0, ls_dev->mc_handle,
- DPNI_IRQ_INDEX, DPNI_IRQ_EVENT_LINK_CHANGED);
- if (err < 0) {
- dev_err(&ls_dev->dev, "dpni_set_irq_mask(): %d\n", err);
- goto free_irq;
- }
-
- err = dpni_set_irq_enable(ls_dev->mc_io, 0, ls_dev->mc_handle,
- DPNI_IRQ_INDEX, 1);
- if (err < 0) {
- dev_err(&ls_dev->dev, "dpni_set_irq_enable(): %d\n", err);
- goto free_irq;
- }
-
- return 0;
-
-free_irq:
- devm_free_irq(&ls_dev->dev, irq->msi_desc->irq, &ls_dev->dev);
-free_mc_irq:
- fsl_mc_free_irqs(ls_dev);
-
- return err;
-}
-
-static void add_ch_napi(struct dpaa2_eth_priv *priv)
-{
- int i;
- struct dpaa2_eth_channel *ch;
-
- for (i = 0; i < priv->num_channels; i++) {
- ch = priv->channel[i];
- /* NAPI weight *MUST* be a multiple of DPAA2_ETH_STORE_SIZE */
- netif_napi_add(priv->net_dev, &ch->napi, dpaa2_eth_poll,
- NAPI_POLL_WEIGHT);
- }
-}
-
-static void del_ch_napi(struct dpaa2_eth_priv *priv)
-{
- int i;
- struct dpaa2_eth_channel *ch;
-
- for (i = 0; i < priv->num_channels; i++) {
- ch = priv->channel[i];
- netif_napi_del(&ch->napi);
- }
-}
-
-static int dpaa2_eth_probe(struct fsl_mc_device *dpni_dev)
-{
- struct device *dev;
- struct net_device *net_dev = NULL;
- struct dpaa2_eth_priv *priv = NULL;
- int err = 0;
-
- dev = &dpni_dev->dev;
-
- /* Net device */
- net_dev = alloc_etherdev_mq(sizeof(*priv), DPAA2_ETH_MAX_TX_QUEUES);
- if (!net_dev) {
- dev_err(dev, "alloc_etherdev_mq() failed\n");
- return -ENOMEM;
- }
-
- SET_NETDEV_DEV(net_dev, dev);
- dev_set_drvdata(dev, net_dev);
-
- priv = netdev_priv(net_dev);
- priv->net_dev = net_dev;
-
- priv->iommu_domain = iommu_get_domain_for_dev(dev);
-
- /* Obtain a MC portal */
- err = fsl_mc_portal_allocate(dpni_dev, FSL_MC_IO_ATOMIC_CONTEXT_PORTAL,
- &priv->mc_io);
- if (err) {
- if (err == -ENXIO)
- err = -EPROBE_DEFER;
- else
- dev_err(dev, "MC portal allocation failed\n");
- goto err_portal_alloc;
- }
-
- /* MC objects initialization and configuration */
- err = setup_dpni(dpni_dev);
- if (err)
- goto err_dpni_setup;
-
- err = setup_dpio(priv);
- if (err)
- goto err_dpio_setup;
-
- setup_fqs(priv);
-
- err = setup_dpbp(priv);
- if (err)
- goto err_dpbp_setup;
-
- err = bind_dpni(priv);
- if (err)
- goto err_bind;
-
- /* Add a NAPI context for each channel */
- add_ch_napi(priv);
-
- /* Percpu statistics */
- priv->percpu_stats = alloc_percpu(*priv->percpu_stats);
- if (!priv->percpu_stats) {
- dev_err(dev, "alloc_percpu(percpu_stats) failed\n");
- err = -ENOMEM;
- goto err_alloc_percpu_stats;
- }
- priv->percpu_extras = alloc_percpu(*priv->percpu_extras);
- if (!priv->percpu_extras) {
- dev_err(dev, "alloc_percpu(percpu_extras) failed\n");
- err = -ENOMEM;
- goto err_alloc_percpu_extras;
- }
-
- err = netdev_init(net_dev);
- if (err)
- goto err_netdev_init;
-
- /* Configure checksum offload based on current interface flags */
- err = set_rx_csum(priv, !!(net_dev->features & NETIF_F_RXCSUM));
- if (err)
- goto err_csum;
-
- err = set_tx_csum(priv, !!(net_dev->features &
- (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM)));
- if (err)
- goto err_csum;
-
- err = alloc_rings(priv);
- if (err)
- goto err_alloc_rings;
-
- err = setup_irqs(dpni_dev);
- if (err) {
- netdev_warn(net_dev, "Failed to set link interrupt, fall back to polling\n");
- priv->poll_thread = kthread_run(poll_link_state, priv,
- "%s_poll_link", net_dev->name);
- if (IS_ERR(priv->poll_thread)) {
- dev_err(dev, "Error starting polling thread\n");
- goto err_poll_thread;
- }
- priv->do_link_poll = true;
- }
-
- err = register_netdev(net_dev);
- if (err < 0) {
- dev_err(dev, "register_netdev() failed\n");
- goto err_netdev_reg;
- }
-
- dev_info(dev, "Probed interface %s\n", net_dev->name);
- return 0;
-
-err_netdev_reg:
- if (priv->do_link_poll)
- kthread_stop(priv->poll_thread);
- else
- fsl_mc_free_irqs(dpni_dev);
-err_poll_thread:
- free_rings(priv);
-err_alloc_rings:
-err_csum:
-err_netdev_init:
- free_percpu(priv->percpu_extras);
-err_alloc_percpu_extras:
- free_percpu(priv->percpu_stats);
-err_alloc_percpu_stats:
- del_ch_napi(priv);
-err_bind:
- free_dpbp(priv);
-err_dpbp_setup:
- free_dpio(priv);
-err_dpio_setup:
- free_dpni(priv);
-err_dpni_setup:
- fsl_mc_portal_free(priv->mc_io);
-err_portal_alloc:
- dev_set_drvdata(dev, NULL);
- free_netdev(net_dev);
-
- return err;
-}
-
-static int dpaa2_eth_remove(struct fsl_mc_device *ls_dev)
-{
- struct device *dev;
- struct net_device *net_dev;
- struct dpaa2_eth_priv *priv;
-
- dev = &ls_dev->dev;
- net_dev = dev_get_drvdata(dev);
- priv = netdev_priv(net_dev);
-
- unregister_netdev(net_dev);
-
- if (priv->do_link_poll)
- kthread_stop(priv->poll_thread);
- else
- fsl_mc_free_irqs(ls_dev);
-
- free_rings(priv);
- free_percpu(priv->percpu_stats);
- free_percpu(priv->percpu_extras);
-
- del_ch_napi(priv);
- free_dpbp(priv);
- free_dpio(priv);
- free_dpni(priv);
-
- fsl_mc_portal_free(priv->mc_io);
-
- free_netdev(net_dev);
-
- dev_dbg(net_dev->dev.parent, "Removed interface %s\n", net_dev->name);
-
- return 0;
-}
-
-static const struct fsl_mc_device_id dpaa2_eth_match_id_table[] = {
- {
- .vendor = FSL_MC_VENDOR_FREESCALE,
- .obj_type = "dpni",
- },
- { .vendor = 0x0 }
-};
-MODULE_DEVICE_TABLE(fslmc, dpaa2_eth_match_id_table);
-
-static struct fsl_mc_driver dpaa2_eth_driver = {
- .driver = {
- .name = KBUILD_MODNAME,
- .owner = THIS_MODULE,
- },
- .probe = dpaa2_eth_probe,
- .remove = dpaa2_eth_remove,
- .match_id_table = dpaa2_eth_match_id_table
-};
-
-module_fsl_mc_driver(dpaa2_eth_driver);
--- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h
+++ /dev/null
@@ -1,412 +0,0 @@
-/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
-/* Copyright 2014-2016 Freescale Semiconductor Inc.
- * Copyright 2016 NXP
- */
-
-#ifndef __DPAA2_ETH_H
-#define __DPAA2_ETH_H
-
-#include <linux/netdevice.h>
-#include <linux/if_vlan.h>
-#include <linux/fsl/mc.h>
-
-#include <soc/fsl/dpaa2-io.h>
-#include <soc/fsl/dpaa2-fd.h>
-#include "dpni.h"
-#include "dpni-cmd.h"
-
-#include "dpaa2-eth-trace.h"
-
-#define DPAA2_WRIOP_VERSION(x, y, z) ((x) << 10 | (y) << 5 | (z) << 0)
-
-#define DPAA2_ETH_STORE_SIZE 16
-
-/* Maximum number of scatter-gather entries in an ingress frame,
- * considering the maximum receive frame size is 64K
- */
-#define DPAA2_ETH_MAX_SG_ENTRIES ((64 * 1024) / DPAA2_ETH_RX_BUF_SIZE)
-
-/* Maximum acceptable MTU value. It is in direct relation with the hardware
- * enforced Max Frame Length (currently 10k).
- */
-#define DPAA2_ETH_MFL (10 * 1024)
-#define DPAA2_ETH_MAX_MTU (DPAA2_ETH_MFL - VLAN_ETH_HLEN)
-/* Convert L3 MTU to L2 MFL */
-#define DPAA2_ETH_L2_MAX_FRM(mtu) ((mtu) + VLAN_ETH_HLEN)
-
-/* Set the taildrop threshold (in bytes) to allow the enqueue of several jumbo
- * frames in the Rx queues (length of the current frame is not
- * taken into account when making the taildrop decision)
- */
-#define DPAA2_ETH_TAILDROP_THRESH (64 * 1024)
-
-/* Buffer quota per queue. Must be large enough such that for minimum sized
- * frames taildrop kicks in before the bpool gets depleted, so we compute
- * how many 64B frames fit inside the taildrop threshold and add a margin
- * to accommodate the buffer refill delay.
- */
-#define DPAA2_ETH_MAX_FRAMES_PER_QUEUE (DPAA2_ETH_TAILDROP_THRESH / 64)
-#define DPAA2_ETH_NUM_BUFS (DPAA2_ETH_MAX_FRAMES_PER_QUEUE + 256)
-#define DPAA2_ETH_REFILL_THRESH DPAA2_ETH_MAX_FRAMES_PER_QUEUE
-
-/* Maximum number of buffers that can be acquired/released through a single
- * QBMan command
- */
-#define DPAA2_ETH_BUFS_PER_CMD 7
-
-/* Hardware requires alignment for ingress/egress buffer addresses */
-#define DPAA2_ETH_TX_BUF_ALIGN 64
-
-#define DPAA2_ETH_RX_BUF_SIZE 2048
-#define DPAA2_ETH_SKB_SIZE \
- (DPAA2_ETH_RX_BUF_SIZE + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
-
-/* Hardware annotation area in RX/TX buffers */
-#define DPAA2_ETH_RX_HWA_SIZE 64
-#define DPAA2_ETH_TX_HWA_SIZE 128
-
-/* PTP nominal frequency 1GHz */
-#define DPAA2_PTP_CLK_PERIOD_NS 1
-
-/* Due to a limitation in WRIOP 1.0.0, the RX buffer data must be aligned
- * to 256B. For newer revisions, the requirement is only for 64B alignment
- */
-#define DPAA2_ETH_RX_BUF_ALIGN_REV1 256
-#define DPAA2_ETH_RX_BUF_ALIGN 64
-
-/* We are accommodating a skb backpointer and some S/G info
- * in the frame's software annotation. The hardware
- * options are either 0 or 64, so we choose the latter.
- */
-#define DPAA2_ETH_SWA_SIZE 64
-
-/* Must keep this struct smaller than DPAA2_ETH_SWA_SIZE */
-struct dpaa2_eth_swa {
- struct sk_buff *skb;
- struct scatterlist *scl;
- int num_sg;
- int sgt_size;
-};
-
-/* Annotation valid bits in FD FRC */
-#define DPAA2_FD_FRC_FASV 0x8000
-#define DPAA2_FD_FRC_FAEADV 0x4000
-#define DPAA2_FD_FRC_FAPRV 0x2000
-#define DPAA2_FD_FRC_FAIADV 0x1000
-#define DPAA2_FD_FRC_FASWOV 0x0800
-#define DPAA2_FD_FRC_FAICFDV 0x0400
-
-/* Error bits in FD CTRL */
-#define DPAA2_FD_RX_ERR_MASK (FD_CTRL_SBE | FD_CTRL_FAERR)
-#define DPAA2_FD_TX_ERR_MASK (FD_CTRL_UFD | \
- FD_CTRL_SBE | \
- FD_CTRL_FSE | \
- FD_CTRL_FAERR)
-
-/* Annotation bits in FD CTRL */
-#define DPAA2_FD_CTRL_ASAL 0x00020000 /* ASAL = 128B */
-
-/* Frame annotation status */
-struct dpaa2_fas {
- u8 reserved;
- u8 ppid;
- __le16 ifpid;
- __le32 status;
-};
-
-/* Frame annotation status word is located in the first 8 bytes
- * of the buffer's hardware annoatation area
- */
-#define DPAA2_FAS_OFFSET 0
-#define DPAA2_FAS_SIZE (sizeof(struct dpaa2_fas))
-
-/* Timestamp is located in the next 8 bytes of the buffer's
- * hardware annotation area
- */
-#define DPAA2_TS_OFFSET 0x8
-
-/* Frame annotation egress action descriptor */
-#define DPAA2_FAEAD_OFFSET 0x58
-
-struct dpaa2_faead {
- __le32 conf_fqid;
- __le32 ctrl;
-};
-
-#define DPAA2_FAEAD_A2V 0x20000000
-#define DPAA2_FAEAD_UPDV 0x00001000
-#define DPAA2_FAEAD_UPD 0x00000010
-
-/* Accessors for the hardware annotation fields that we use */
-static inline void *dpaa2_get_hwa(void *buf_addr, bool swa)
-{
- return buf_addr + (swa ? DPAA2_ETH_SWA_SIZE : 0);
-}
-
-static inline struct dpaa2_fas *dpaa2_get_fas(void *buf_addr, bool swa)
-{
- return dpaa2_get_hwa(buf_addr, swa) + DPAA2_FAS_OFFSET;
-}
-
-static inline __le64 *dpaa2_get_ts(void *buf_addr, bool swa)
-{
- return dpaa2_get_hwa(buf_addr, swa) + DPAA2_TS_OFFSET;
-}
-
-static inline struct dpaa2_faead *dpaa2_get_faead(void *buf_addr, bool swa)
-{
- return dpaa2_get_hwa(buf_addr, swa) + DPAA2_FAEAD_OFFSET;
-}
-
-/* Error and status bits in the frame annotation status word */
-/* Debug frame, otherwise supposed to be discarded */
-#define DPAA2_FAS_DISC 0x80000000
-/* MACSEC frame */
-#define DPAA2_FAS_MS 0x40000000
-#define DPAA2_FAS_PTP 0x08000000
-/* Ethernet multicast frame */
-#define DPAA2_FAS_MC 0x04000000
-/* Ethernet broadcast frame */
-#define DPAA2_FAS_BC 0x02000000
-#define DPAA2_FAS_KSE 0x00040000
-#define DPAA2_FAS_EOFHE 0x00020000
-#define DPAA2_FAS_MNLE 0x00010000
-#define DPAA2_FAS_TIDE 0x00008000
-#define DPAA2_FAS_PIEE 0x00004000
-/* Frame length error */
-#define DPAA2_FAS_FLE 0x00002000
-/* Frame physical error */
-#define DPAA2_FAS_FPE 0x00001000
-#define DPAA2_FAS_PTE 0x00000080
-#define DPAA2_FAS_ISP 0x00000040
-#define DPAA2_FAS_PHE 0x00000020
-#define DPAA2_FAS_BLE 0x00000010
-/* L3 csum validation performed */
-#define DPAA2_FAS_L3CV 0x00000008
-/* L3 csum error */
-#define DPAA2_FAS_L3CE 0x00000004
-/* L4 csum validation performed */
-#define DPAA2_FAS_L4CV 0x00000002
-/* L4 csum error */
-#define DPAA2_FAS_L4CE 0x00000001
-/* Possible errors on the ingress path */
-#define DPAA2_FAS_RX_ERR_MASK (DPAA2_FAS_KSE | \
- DPAA2_FAS_EOFHE | \
- DPAA2_FAS_MNLE | \
- DPAA2_FAS_TIDE | \
- DPAA2_FAS_PIEE | \
- DPAA2_FAS_FLE | \
- DPAA2_FAS_FPE | \
- DPAA2_FAS_PTE | \
- DPAA2_FAS_ISP | \
- DPAA2_FAS_PHE | \
- DPAA2_FAS_BLE | \
- DPAA2_FAS_L3CE | \
- DPAA2_FAS_L4CE)
-
-/* Time in milliseconds between link state updates */
-#define DPAA2_ETH_LINK_STATE_REFRESH 1000
-
-/* Number of times to retry a frame enqueue before giving up.
- * Value determined empirically, in order to minimize the number
- * of frames dropped on Tx
- */
-#define DPAA2_ETH_ENQUEUE_RETRIES 10
-
-/* Driver statistics, other than those in struct rtnl_link_stats64.
- * These are usually collected per-CPU and aggregated by ethtool.
- */
-struct dpaa2_eth_drv_stats {
- __u64 tx_conf_frames;
- __u64 tx_conf_bytes;
- __u64 tx_sg_frames;
- __u64 tx_sg_bytes;
- __u64 tx_reallocs;
- __u64 rx_sg_frames;
- __u64 rx_sg_bytes;
- /* Enqueues retried due to portal busy */
- __u64 tx_portal_busy;
-};
-
-/* Per-FQ statistics */
-struct dpaa2_eth_fq_stats {
- /* Number of frames received on this queue */
- __u64 frames;
-};
-
-/* Per-channel statistics */
-struct dpaa2_eth_ch_stats {
- /* Volatile dequeues retried due to portal busy */
- __u64 dequeue_portal_busy;
- /* Number of CDANs; useful to estimate avg NAPI len */
- __u64 cdan;
- /* Number of frames received on queues from this channel */
- __u64 frames;
- /* Pull errors */
- __u64 pull_err;
-};
-
-/* Maximum number of queues associated with a DPNI */
-#define DPAA2_ETH_MAX_RX_QUEUES 16
-#define DPAA2_ETH_MAX_TX_QUEUES 16
-#define DPAA2_ETH_MAX_QUEUES (DPAA2_ETH_MAX_RX_QUEUES + \
- DPAA2_ETH_MAX_TX_QUEUES)
-
-#define DPAA2_ETH_MAX_DPCONS 16
-
-enum dpaa2_eth_fq_type {
- DPAA2_RX_FQ = 0,
- DPAA2_TX_CONF_FQ,
-};
-
-struct dpaa2_eth_priv;
-
-struct dpaa2_eth_fq {
- u32 fqid;
- u32 tx_qdbin;
- u16 flowid;
- int target_cpu;
- struct dpaa2_eth_channel *channel;
- enum dpaa2_eth_fq_type type;
-
- void (*consume)(struct dpaa2_eth_priv *priv,
- struct dpaa2_eth_channel *ch,
- const struct dpaa2_fd *fd,
- struct napi_struct *napi,
- u16 queue_id);
- struct dpaa2_eth_fq_stats stats;
-};
-
-struct dpaa2_eth_channel {
- struct dpaa2_io_notification_ctx nctx;
- struct fsl_mc_device *dpcon;
- int dpcon_id;
- int ch_id;
- struct napi_struct napi;
- struct dpaa2_io *dpio;
- struct dpaa2_io_store *store;
- struct dpaa2_eth_priv *priv;
- int buf_count;
- struct dpaa2_eth_ch_stats stats;
-};
-
-struct dpaa2_eth_hash_fields {
- u64 rxnfc_field;
- enum net_prot cls_prot;
- int cls_field;
- int size;
-};
-
-/* Driver private data */
-struct dpaa2_eth_priv {
- struct net_device *net_dev;
-
- u8 num_fqs;
- struct dpaa2_eth_fq fq[DPAA2_ETH_MAX_QUEUES];
-
- u8 num_channels;
- struct dpaa2_eth_channel *channel[DPAA2_ETH_MAX_DPCONS];
-
- struct dpni_attr dpni_attrs;
- u16 dpni_ver_major;
- u16 dpni_ver_minor;
- u16 tx_data_offset;
-
- struct fsl_mc_device *dpbp_dev;
- u16 bpid;
- struct iommu_domain *iommu_domain;
-
- bool tx_tstamp; /* Tx timestamping enabled */
- bool rx_tstamp; /* Rx timestamping enabled */
-
- u16 tx_qdid;
- u16 rx_buf_align;
- struct fsl_mc_io *mc_io;
- /* Cores which have an affine DPIO/DPCON.
- * This is the cpu set on which Rx and Tx conf frames are processed
- */
- struct cpumask dpio_cpumask;
-
- /* Standard statistics */
- struct rtnl_link_stats64 __percpu *percpu_stats;
- /* Extra stats, in addition to the ones known by the kernel */
- struct dpaa2_eth_drv_stats __percpu *percpu_extras;
-
- u16 mc_token;
-
- struct dpni_link_state link_state;
- bool do_link_poll;
- struct task_struct *poll_thread;
-
- /* enabled ethtool hashing bits */
- u64 rx_hash_fields;
-};
-
-#define DPAA2_RXH_SUPPORTED (RXH_L2DA | RXH_VLAN | RXH_L3_PROTO \
- | RXH_IP_SRC | RXH_IP_DST | RXH_L4_B_0_1 \
- | RXH_L4_B_2_3)
-
-/* default Rx hash options, set during probing */
-#define DPAA2_RXH_DEFAULT (RXH_L3_PROTO | RXH_IP_SRC | RXH_IP_DST | \
- RXH_L4_B_0_1 | RXH_L4_B_2_3)
-
-#define dpaa2_eth_hash_enabled(priv) \
- ((priv)->dpni_attrs.num_queues > 1)
-
-/* Required by struct dpni_rx_tc_dist_cfg::key_cfg_iova */
-#define DPAA2_CLASSIFIER_DMA_SIZE 256
-
-extern const struct ethtool_ops dpaa2_ethtool_ops;
-extern int dpaa2_phc_index;
-
-static inline int dpaa2_eth_cmp_dpni_ver(struct dpaa2_eth_priv *priv,
- u16 ver_major, u16 ver_minor)
-{
- if (priv->dpni_ver_major == ver_major)
- return priv->dpni_ver_minor - ver_minor;
- return priv->dpni_ver_major - ver_major;
-}
-
-/* Hardware only sees DPAA2_ETH_RX_BUF_SIZE, but the skb built around
- * the buffer also needs space for its shared info struct, and we need
- * to allocate enough to accommodate hardware alignment restrictions
- */
-static inline unsigned int dpaa2_eth_buf_raw_size(struct dpaa2_eth_priv *priv)
-{
- return DPAA2_ETH_SKB_SIZE + priv->rx_buf_align;
-}
-
-static inline
-unsigned int dpaa2_eth_needed_headroom(struct dpaa2_eth_priv *priv,
- struct sk_buff *skb)
-{
- unsigned int headroom = DPAA2_ETH_SWA_SIZE;
-
- /* For non-linear skbs we have no headroom requirement, as we build a
- * SG frame with a newly allocated SGT buffer
- */
- if (skb_is_nonlinear(skb))
- return 0;
-
- /* If we have Tx timestamping, need 128B hardware annotation */
- if (priv->tx_tstamp && skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)
- headroom += DPAA2_ETH_TX_HWA_SIZE;
-
- return headroom;
-}
-
-/* Extra headroom space requested to hardware, in order to make sure there's
- * no realloc'ing in forwarding scenarios
- */
-static inline unsigned int dpaa2_eth_rx_head_room(struct dpaa2_eth_priv *priv)
-{
- return priv->tx_data_offset + DPAA2_ETH_TX_BUF_ALIGN -
- DPAA2_ETH_RX_HWA_SIZE;
-}
-
-static int dpaa2_eth_queue_count(struct dpaa2_eth_priv *priv)
-{
- return priv->dpni_attrs.num_queues;
-}
-
-#endif /* __DPAA2_H */
--- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
+++ /dev/null
@@ -1,280 +0,0 @@
-// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
-/* Copyright 2014-2016 Freescale Semiconductor Inc.
- * Copyright 2016 NXP
- */
-
-#include <linux/net_tstamp.h>
-
-#include "dpni.h" /* DPNI_LINK_OPT_* */
-#include "dpaa2-eth.h"
-
-/* To be kept in sync with DPNI statistics */
-static char dpaa2_ethtool_stats[][ETH_GSTRING_LEN] = {
- "[hw] rx frames",
- "[hw] rx bytes",
- "[hw] rx mcast frames",
- "[hw] rx mcast bytes",
- "[hw] rx bcast frames",
- "[hw] rx bcast bytes",
- "[hw] tx frames",
- "[hw] tx bytes",
- "[hw] tx mcast frames",
- "[hw] tx mcast bytes",
- "[hw] tx bcast frames",
- "[hw] tx bcast bytes",
- "[hw] rx filtered frames",
- "[hw] rx discarded frames",
- "[hw] rx nobuffer discards",
- "[hw] tx discarded frames",
- "[hw] tx confirmed frames",
-};
-
-#define DPAA2_ETH_NUM_STATS ARRAY_SIZE(dpaa2_ethtool_stats)
-
-static char dpaa2_ethtool_extras[][ETH_GSTRING_LEN] = {
- /* per-cpu stats */
- "[drv] tx conf frames",
- "[drv] tx conf bytes",
- "[drv] tx sg frames",
- "[drv] tx sg bytes",
- "[drv] tx realloc frames",
- "[drv] rx sg frames",
- "[drv] rx sg bytes",
- "[drv] enqueue portal busy",
- /* Channel stats */
- "[drv] dequeue portal busy",
- "[drv] channel pull errors",
- "[drv] cdan",
-};
-
-#define DPAA2_ETH_NUM_EXTRA_STATS ARRAY_SIZE(dpaa2_ethtool_extras)
-
-static void dpaa2_eth_get_drvinfo(struct net_device *net_dev,
- struct ethtool_drvinfo *drvinfo)
-{
- struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
-
- strlcpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
-
- snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
- "%u.%u", priv->dpni_ver_major, priv->dpni_ver_minor);
-
- strlcpy(drvinfo->bus_info, dev_name(net_dev->dev.parent->parent),
- sizeof(drvinfo->bus_info));
-}
-
-static int
-dpaa2_eth_get_link_ksettings(struct net_device *net_dev,
- struct ethtool_link_ksettings *link_settings)
-{
- struct dpni_link_state state = {0};
- int err = 0;
- struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
-
- err = dpni_get_link_state(priv->mc_io, 0, priv->mc_token, &state);
- if (err) {
- netdev_err(net_dev, "ERROR %d getting link state\n", err);
- goto out;
- }
-
- /* At the moment, we have no way of interrogating the DPMAC
- * from the DPNI side - and for that matter there may exist
- * no DPMAC at all. So for now we just don't report anything
- * beyond the DPNI attributes.
- */
- if (state.options & DPNI_LINK_OPT_AUTONEG)
- link_settings->base.autoneg = AUTONEG_ENABLE;
- if (!(state.options & DPNI_LINK_OPT_HALF_DUPLEX))
- link_settings->base.duplex = DUPLEX_FULL;
- link_settings->base.speed = state.rate;
-
-out:
- return err;
-}
-
-#define DPNI_DYNAMIC_LINK_SET_VER_MAJOR 7
-#define DPNI_DYNAMIC_LINK_SET_VER_MINOR 1
-static int
-dpaa2_eth_set_link_ksettings(struct net_device *net_dev,
- const struct ethtool_link_ksettings *link_settings)
-{
- struct dpni_link_cfg cfg = {0};
- struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
- int err = 0;
-
- /* If using an older MC version, the DPNI must be down
- * in order to be able to change link settings. Taking steps to let
- * the user know that.
- */
- if (dpaa2_eth_cmp_dpni_ver(priv, DPNI_DYNAMIC_LINK_SET_VER_MAJOR,
- DPNI_DYNAMIC_LINK_SET_VER_MINOR) < 0) {
- if (netif_running(net_dev)) {
- netdev_info(net_dev, "Interface must be brought down first.\n");
- return -EACCES;
- }
- }
-
- cfg.rate = link_settings->base.speed;
- if (link_settings->base.autoneg == AUTONEG_ENABLE)
- cfg.options |= DPNI_LINK_OPT_AUTONEG;
- else
- cfg.options &= ~DPNI_LINK_OPT_AUTONEG;
- if (link_settings->base.duplex == DUPLEX_HALF)
- cfg.options |= DPNI_LINK_OPT_HALF_DUPLEX;
- else
- cfg.options &= ~DPNI_LINK_OPT_HALF_DUPLEX;
-
- err = dpni_set_link_cfg(priv->mc_io, 0, priv->mc_token, &cfg);
- if (err)
- /* ethtool will be loud enough if we return an error; no point
- * in putting our own error message on the console by default
- */
- netdev_dbg(net_dev, "ERROR %d setting link cfg\n", err);
-
- return err;
-}
-
-static void dpaa2_eth_get_strings(struct net_device *netdev, u32 stringset,
- u8 *data)
-{
- u8 *p = data;
- int i;
-
- switch (stringset) {
- case ETH_SS_STATS:
- for (i = 0; i < DPAA2_ETH_NUM_STATS; i++) {
- strlcpy(p, dpaa2_ethtool_stats[i], ETH_GSTRING_LEN);
- p += ETH_GSTRING_LEN;
- }
- for (i = 0; i < DPAA2_ETH_NUM_EXTRA_STATS; i++) {
- strlcpy(p, dpaa2_ethtool_extras[i], ETH_GSTRING_LEN);
- p += ETH_GSTRING_LEN;
- }
- break;
- }
-}
-
-static int dpaa2_eth_get_sset_count(struct net_device *net_dev, int sset)
-{
- switch (sset) {
- case ETH_SS_STATS: /* ethtool_get_stats(), ethtool_get_drvinfo() */
- return DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS;
- default:
- return -EOPNOTSUPP;
- }
-}
-
-/** Fill in hardware counters, as returned by MC.
- */
-static void dpaa2_eth_get_ethtool_stats(struct net_device *net_dev,
- struct ethtool_stats *stats,
- u64 *data)
-{
- int i = 0;
- int j, k, err;
- int num_cnt;
- union dpni_statistics dpni_stats;
- u64 cdan = 0;
- u64 portal_busy = 0, pull_err = 0;
- struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
- struct dpaa2_eth_drv_stats *extras;
- struct dpaa2_eth_ch_stats *ch_stats;
-
- memset(data, 0,
- sizeof(u64) * (DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS));
-
- /* Print standard counters, from DPNI statistics */
- for (j = 0; j <= 2; j++) {
- err = dpni_get_statistics(priv->mc_io, 0, priv->mc_token,
- j, &dpni_stats);
- if (err != 0)
- netdev_warn(net_dev, "dpni_get_stats(%d) failed\n", j);
- switch (j) {
- case 0:
- num_cnt = sizeof(dpni_stats.page_0) / sizeof(u64);
- break;
- case 1:
- num_cnt = sizeof(dpni_stats.page_1) / sizeof(u64);
- break;
- case 2:
- num_cnt = sizeof(dpni_stats.page_2) / sizeof(u64);
- break;
- }
- for (k = 0; k < num_cnt; k++)
- *(data + i++) = dpni_stats.raw.counter[k];
- }
-
- /* Print per-cpu extra stats */
- for_each_online_cpu(k) {
- extras = per_cpu_ptr(priv->percpu_extras, k);
- for (j = 0; j < sizeof(*extras) / sizeof(__u64); j++)
- *((__u64 *)data + i + j) += *((__u64 *)extras + j);
- }
- i += j;
-
- for (j = 0; j < priv->num_channels; j++) {
- ch_stats = &priv->channel[j]->stats;
- cdan += ch_stats->cdan;
- portal_busy += ch_stats->dequeue_portal_busy;
- pull_err += ch_stats->pull_err;
- }
-
- *(data + i++) = portal_busy;
- *(data + i++) = pull_err;
- *(data + i++) = cdan;
-}
-
-static int dpaa2_eth_get_rxnfc(struct net_device *net_dev,
- struct ethtool_rxnfc *rxnfc, u32 *rule_locs)
-{
- struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
-
- switch (rxnfc->cmd) {
- case ETHTOOL_GRXFH:
- /* we purposely ignore cmd->flow_type for now, because the
- * classifier only supports a single set of fields for all
- * protocols
- */
- rxnfc->data = priv->rx_hash_fields;
- break;
- case ETHTOOL_GRXRINGS:
- rxnfc->data = dpaa2_eth_queue_count(priv);
- break;
- default:
- return -EOPNOTSUPP;
- }
-
- return 0;
-}
-
-int dpaa2_phc_index = -1;
-EXPORT_SYMBOL(dpaa2_phc_index);
-
-static int dpaa2_eth_get_ts_info(struct net_device *dev,
- struct ethtool_ts_info *info)
-{
- info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
- SOF_TIMESTAMPING_RX_HARDWARE |
- SOF_TIMESTAMPING_RAW_HARDWARE;
-
- info->phc_index = dpaa2_phc_index;
-
- info->tx_types = (1 << HWTSTAMP_TX_OFF) |
- (1 << HWTSTAMP_TX_ON);
-
- info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
- (1 << HWTSTAMP_FILTER_ALL);
- return 0;
-}
-
-const struct ethtool_ops dpaa2_ethtool_ops = {
- .get_drvinfo = dpaa2_eth_get_drvinfo,
- .get_link = ethtool_op_get_link,
- .get_link_ksettings = dpaa2_eth_get_link_ksettings,
- .set_link_ksettings = dpaa2_eth_set_link_ksettings,
- .get_sset_count = dpaa2_eth_get_sset_count,
- .get_ethtool_stats = dpaa2_eth_get_ethtool_stats,
- .get_strings = dpaa2_eth_get_strings,
- .get_rxnfc = dpaa2_eth_get_rxnfc,
- .get_ts_info = dpaa2_eth_get_ts_info,
-};
--- a/drivers/staging/fsl-dpaa2/ethernet/dpkg.h
+++ /dev/null
@@ -1,480 +0,0 @@
-/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
-/* Copyright 2013-2015 Freescale Semiconductor Inc.
- */
-#ifndef __FSL_DPKG_H_
-#define __FSL_DPKG_H_
-
-#include <linux/types.h>
-
-/* Data Path Key Generator API
- * Contains initialization APIs and runtime APIs for the Key Generator
- */
-
-/** Key Generator properties */
-
-/**
- * Number of masks per key extraction
- */
-#define DPKG_NUM_OF_MASKS 4
-/**
- * Number of extractions per key profile
- */
-#define DPKG_MAX_NUM_OF_EXTRACTS 10
-
-/**
- * enum dpkg_extract_from_hdr_type - Selecting extraction by header types
- * @DPKG_FROM_HDR: Extract selected bytes from header, by offset
- * @DPKG_FROM_FIELD: Extract selected bytes from header, by offset from field
- * @DPKG_FULL_FIELD: Extract a full field
- */
-enum dpkg_extract_from_hdr_type {
- DPKG_FROM_HDR = 0,
- DPKG_FROM_FIELD = 1,
- DPKG_FULL_FIELD = 2
-};
-
-/**
- * enum dpkg_extract_type - Enumeration for selecting extraction type
- * @DPKG_EXTRACT_FROM_HDR: Extract from the header
- * @DPKG_EXTRACT_FROM_DATA: Extract from data not in specific header
- * @DPKG_EXTRACT_FROM_PARSE: Extract from parser-result;
- * e.g. can be used to extract header existence;
- * please refer to 'Parse Result definition' section in the parser BG
- */
-enum dpkg_extract_type {
- DPKG_EXTRACT_FROM_HDR = 0,
- DPKG_EXTRACT_FROM_DATA = 1,
- DPKG_EXTRACT_FROM_PARSE = 3
-};
-
-/**
- * struct dpkg_mask - A structure for defining a single extraction mask
- * @mask: Byte mask for the extracted content
- * @offset: Offset within the extracted content
- */
-struct dpkg_mask {
- u8 mask;
- u8 offset;
-};
-
-/* Protocol fields */
-
-/* Ethernet fields */
-#define NH_FLD_ETH_DA BIT(0)
-#define NH_FLD_ETH_SA BIT(1)
-#define NH_FLD_ETH_LENGTH BIT(2)
-#define NH_FLD_ETH_TYPE BIT(3)
-#define NH_FLD_ETH_FINAL_CKSUM BIT(4)
-#define NH_FLD_ETH_PADDING BIT(5)
-#define NH_FLD_ETH_ALL_FIELDS (BIT(6) - 1)
-
-/* VLAN fields */
-#define NH_FLD_VLAN_VPRI BIT(0)
-#define NH_FLD_VLAN_CFI BIT(1)
-#define NH_FLD_VLAN_VID BIT(2)
-#define NH_FLD_VLAN_LENGTH BIT(3)
-#define NH_FLD_VLAN_TYPE BIT(4)
-#define NH_FLD_VLAN_ALL_FIELDS (BIT(5) - 1)
-
-#define NH_FLD_VLAN_TCI (NH_FLD_VLAN_VPRI | \
- NH_FLD_VLAN_CFI | \
- NH_FLD_VLAN_VID)
-
-/* IP (generic) fields */
-#define NH_FLD_IP_VER BIT(0)
-#define NH_FLD_IP_DSCP BIT(2)
-#define NH_FLD_IP_ECN BIT(3)
-#define NH_FLD_IP_PROTO BIT(4)
-#define NH_FLD_IP_SRC BIT(5)
-#define NH_FLD_IP_DST BIT(6)
-#define NH_FLD_IP_TOS_TC BIT(7)
-#define NH_FLD_IP_ID BIT(8)
-#define NH_FLD_IP_ALL_FIELDS (BIT(9) - 1)
-
-/* IPV4 fields */
-#define NH_FLD_IPV4_VER BIT(0)
-#define NH_FLD_IPV4_HDR_LEN BIT(1)
-#define NH_FLD_IPV4_TOS BIT(2)
-#define NH_FLD_IPV4_TOTAL_LEN BIT(3)
-#define NH_FLD_IPV4_ID BIT(4)
-#define NH_FLD_IPV4_FLAG_D BIT(5)
-#define NH_FLD_IPV4_FLAG_M BIT(6)
-#define NH_FLD_IPV4_OFFSET BIT(7)
-#define NH_FLD_IPV4_TTL BIT(8)
-#define NH_FLD_IPV4_PROTO BIT(9)
-#define NH_FLD_IPV4_CKSUM BIT(10)
-#define NH_FLD_IPV4_SRC_IP BIT(11)
-#define NH_FLD_IPV4_DST_IP BIT(12)
-#define NH_FLD_IPV4_OPTS BIT(13)
-#define NH_FLD_IPV4_OPTS_COUNT BIT(14)
-#define NH_FLD_IPV4_ALL_FIELDS (BIT(15) - 1)
-
-/* IPV6 fields */
-#define NH_FLD_IPV6_VER BIT(0)
-#define NH_FLD_IPV6_TC BIT(1)
-#define NH_FLD_IPV6_SRC_IP BIT(2)
-#define NH_FLD_IPV6_DST_IP BIT(3)
-#define NH_FLD_IPV6_NEXT_HDR BIT(4)
-#define NH_FLD_IPV6_FL BIT(5)
-#define NH_FLD_IPV6_HOP_LIMIT BIT(6)
-#define NH_FLD_IPV6_ID BIT(7)
-#define NH_FLD_IPV6_ALL_FIELDS (BIT(8) - 1)
-
-/* ICMP fields */
-#define NH_FLD_ICMP_TYPE BIT(0)
-#define NH_FLD_ICMP_CODE BIT(1)
-#define NH_FLD_ICMP_CKSUM BIT(2)
-#define NH_FLD_ICMP_ID BIT(3)
-#define NH_FLD_ICMP_SQ_NUM BIT(4)
-#define NH_FLD_ICMP_ALL_FIELDS (BIT(5) - 1)
-
-/* IGMP fields */
-#define NH_FLD_IGMP_VERSION BIT(0)
-#define NH_FLD_IGMP_TYPE BIT(1)
-#define NH_FLD_IGMP_CKSUM BIT(2)
-#define NH_FLD_IGMP_DATA BIT(3)
-#define NH_FLD_IGMP_ALL_FIELDS (BIT(4) - 1)
-
-/* TCP fields */
-#define NH_FLD_TCP_PORT_SRC BIT(0)
-#define NH_FLD_TCP_PORT_DST BIT(1)
-#define NH_FLD_TCP_SEQ BIT(2)
-#define NH_FLD_TCP_ACK BIT(3)
-#define NH_FLD_TCP_OFFSET BIT(4)
-#define NH_FLD_TCP_FLAGS BIT(5)
-#define NH_FLD_TCP_WINDOW BIT(6)
-#define NH_FLD_TCP_CKSUM BIT(7)
-#define NH_FLD_TCP_URGPTR BIT(8)
-#define NH_FLD_TCP_OPTS BIT(9)
-#define NH_FLD_TCP_OPTS_COUNT BIT(10)
-#define NH_FLD_TCP_ALL_FIELDS (BIT(11) - 1)
-
-/* UDP fields */
-#define NH_FLD_UDP_PORT_SRC BIT(0)
-#define NH_FLD_UDP_PORT_DST BIT(1)
-#define NH_FLD_UDP_LEN BIT(2)
-#define NH_FLD_UDP_CKSUM BIT(3)
-#define NH_FLD_UDP_ALL_FIELDS (BIT(4) - 1)
-
-/* UDP-lite fields */
-#define NH_FLD_UDP_LITE_PORT_SRC BIT(0)
-#define NH_FLD_UDP_LITE_PORT_DST BIT(1)
-#define NH_FLD_UDP_LITE_ALL_FIELDS (BIT(2) - 1)
-
-/* UDP-encap-ESP fields */
-#define NH_FLD_UDP_ENC_ESP_PORT_SRC BIT(0)
-#define NH_FLD_UDP_ENC_ESP_PORT_DST BIT(1)
-#define NH_FLD_UDP_ENC_ESP_LEN BIT(2)
-#define NH_FLD_UDP_ENC_ESP_CKSUM BIT(3)
-#define NH_FLD_UDP_ENC_ESP_SPI BIT(4)
-#define NH_FLD_UDP_ENC_ESP_SEQUENCE_NUM BIT(5)
-#define NH_FLD_UDP_ENC_ESP_ALL_FIELDS (BIT(6) - 1)
-
-/* SCTP fields */
-#define NH_FLD_SCTP_PORT_SRC BIT(0)
-#define NH_FLD_SCTP_PORT_DST BIT(1)
-#define NH_FLD_SCTP_VER_TAG BIT(2)
-#define NH_FLD_SCTP_CKSUM BIT(3)
-#define NH_FLD_SCTP_ALL_FIELDS (BIT(4) - 1)
-
-/* DCCP fields */
-#define NH_FLD_DCCP_PORT_SRC BIT(0)
-#define NH_FLD_DCCP_PORT_DST BIT(1)
-#define NH_FLD_DCCP_ALL_FIELDS (BIT(2) - 1)
-
-/* IPHC fields */
-#define NH_FLD_IPHC_CID BIT(0)
-#define NH_FLD_IPHC_CID_TYPE BIT(1)
-#define NH_FLD_IPHC_HCINDEX BIT(2)
-#define NH_FLD_IPHC_GEN BIT(3)
-#define NH_FLD_IPHC_D_BIT BIT(4)
-#define NH_FLD_IPHC_ALL_FIELDS (BIT(5) - 1)
-
-/* SCTP fields */
-#define NH_FLD_SCTP_CHUNK_DATA_TYPE BIT(0)
-#define NH_FLD_SCTP_CHUNK_DATA_FLAGS BIT(1)
-#define NH_FLD_SCTP_CHUNK_DATA_LENGTH BIT(2)
-#define NH_FLD_SCTP_CHUNK_DATA_TSN BIT(3)
-#define NH_FLD_SCTP_CHUNK_DATA_STREAM_ID BIT(4)
-#define NH_FLD_SCTP_CHUNK_DATA_STREAM_SQN BIT(5)
-#define NH_FLD_SCTP_CHUNK_DATA_PAYLOAD_PID BIT(6)
-#define NH_FLD_SCTP_CHUNK_DATA_UNORDERED BIT(7)
-#define NH_FLD_SCTP_CHUNK_DATA_BEGGINING BIT(8)
-#define NH_FLD_SCTP_CHUNK_DATA_END BIT(9)
-#define NH_FLD_SCTP_CHUNK_DATA_ALL_FIELDS (BIT(10) - 1)
-
-/* L2TPV2 fields */
-#define NH_FLD_L2TPV2_TYPE_BIT BIT(0)
-#define NH_FLD_L2TPV2_LENGTH_BIT BIT(1)
-#define NH_FLD_L2TPV2_SEQUENCE_BIT BIT(2)
-#define NH_FLD_L2TPV2_OFFSET_BIT BIT(3)
-#define NH_FLD_L2TPV2_PRIORITY_BIT BIT(4)
-#define NH_FLD_L2TPV2_VERSION BIT(5)
-#define NH_FLD_L2TPV2_LEN BIT(6)
-#define NH_FLD_L2TPV2_TUNNEL_ID BIT(7)
-#define NH_FLD_L2TPV2_SESSION_ID BIT(8)
-#define NH_FLD_L2TPV2_NS BIT(9)
-#define NH_FLD_L2TPV2_NR BIT(10)
-#define NH_FLD_L2TPV2_OFFSET_SIZE BIT(11)
-#define NH_FLD_L2TPV2_FIRST_BYTE BIT(12)
-#define NH_FLD_L2TPV2_ALL_FIELDS (BIT(13) - 1)
-
-/* L2TPV3 fields */
-#define NH_FLD_L2TPV3_CTRL_TYPE_BIT BIT(0)
-#define NH_FLD_L2TPV3_CTRL_LENGTH_BIT BIT(1)
-#define NH_FLD_L2TPV3_CTRL_SEQUENCE_BIT BIT(2)
-#define NH_FLD_L2TPV3_CTRL_VERSION BIT(3)
-#define NH_FLD_L2TPV3_CTRL_LENGTH BIT(4)
-#define NH_FLD_L2TPV3_CTRL_CONTROL BIT(5)
-#define NH_FLD_L2TPV3_CTRL_SENT BIT(6)
-#define NH_FLD_L2TPV3_CTRL_RECV BIT(7)
-#define NH_FLD_L2TPV3_CTRL_FIRST_BYTE BIT(8)
-#define NH_FLD_L2TPV3_CTRL_ALL_FIELDS (BIT(9) - 1)
-
-#define NH_FLD_L2TPV3_SESS_TYPE_BIT BIT(0)
-#define NH_FLD_L2TPV3_SESS_VERSION BIT(1)
-#define NH_FLD_L2TPV3_SESS_ID BIT(2)
-#define NH_FLD_L2TPV3_SESS_COOKIE BIT(3)
-#define NH_FLD_L2TPV3_SESS_ALL_FIELDS (BIT(4) - 1)
-
-/* PPP fields */
-#define NH_FLD_PPP_PID BIT(0)
-#define NH_FLD_PPP_COMPRESSED BIT(1)
-#define NH_FLD_PPP_ALL_FIELDS (BIT(2) - 1)
-
-/* PPPoE fields */
-#define NH_FLD_PPPOE_VER BIT(0)
-#define NH_FLD_PPPOE_TYPE BIT(1)
-#define NH_FLD_PPPOE_CODE BIT(2)
-#define NH_FLD_PPPOE_SID BIT(3)
-#define NH_FLD_PPPOE_LEN BIT(4)
-#define NH_FLD_PPPOE_SESSION BIT(5)
-#define NH_FLD_PPPOE_PID BIT(6)
-#define NH_FLD_PPPOE_ALL_FIELDS (BIT(7) - 1)
-
-/* PPP-Mux fields */
-#define NH_FLD_PPPMUX_PID BIT(0)
-#define NH_FLD_PPPMUX_CKSUM BIT(1)
-#define NH_FLD_PPPMUX_COMPRESSED BIT(2)
-#define NH_FLD_PPPMUX_ALL_FIELDS (BIT(3) - 1)
-
-/* PPP-Mux sub-frame fields */
-#define NH_FLD_PPPMUX_SUBFRM_PFF BIT(0)
-#define NH_FLD_PPPMUX_SUBFRM_LXT BIT(1)
-#define NH_FLD_PPPMUX_SUBFRM_LEN BIT(2)
-#define NH_FLD_PPPMUX_SUBFRM_PID BIT(3)
-#define NH_FLD_PPPMUX_SUBFRM_USE_PID BIT(4)
-#define NH_FLD_PPPMUX_SUBFRM_ALL_FIELDS (BIT(5) - 1)
-
-/* LLC fields */
-#define NH_FLD_LLC_DSAP BIT(0)
-#define NH_FLD_LLC_SSAP BIT(1)
-#define NH_FLD_LLC_CTRL BIT(2)
-#define NH_FLD_LLC_ALL_FIELDS (BIT(3) - 1)
-
-/* NLPID fields */
-#define NH_FLD_NLPID_NLPID BIT(0)
-#define NH_FLD_NLPID_ALL_FIELDS (BIT(1) - 1)
-
-/* SNAP fields */
-#define NH_FLD_SNAP_OUI BIT(0)
-#define NH_FLD_SNAP_PID BIT(1)
-#define NH_FLD_SNAP_ALL_FIELDS (BIT(2) - 1)
-
-/* LLC SNAP fields */
-#define NH_FLD_LLC_SNAP_TYPE BIT(0)
-#define NH_FLD_LLC_SNAP_ALL_FIELDS (BIT(1) - 1)
-
-/* ARP fields */
-#define NH_FLD_ARP_HTYPE BIT(0)
-#define NH_FLD_ARP_PTYPE BIT(1)
-#define NH_FLD_ARP_HLEN BIT(2)
-#define NH_FLD_ARP_PLEN BIT(3)
-#define NH_FLD_ARP_OPER BIT(4)
-#define NH_FLD_ARP_SHA BIT(5)
-#define NH_FLD_ARP_SPA BIT(6)
-#define NH_FLD_ARP_THA BIT(7)
-#define NH_FLD_ARP_TPA BIT(8)
-#define NH_FLD_ARP_ALL_FIELDS (BIT(9) - 1)
-
-/* RFC2684 fields */
-#define NH_FLD_RFC2684_LLC BIT(0)
-#define NH_FLD_RFC2684_NLPID BIT(1)
-#define NH_FLD_RFC2684_OUI BIT(2)
-#define NH_FLD_RFC2684_PID BIT(3)
-#define NH_FLD_RFC2684_VPN_OUI BIT(4)
-#define NH_FLD_RFC2684_VPN_IDX BIT(5)
-#define NH_FLD_RFC2684_ALL_FIELDS (BIT(6) - 1)
-
-/* User defined fields */
-#define NH_FLD_USER_DEFINED_SRCPORT BIT(0)
-#define NH_FLD_USER_DEFINED_PCDID BIT(1)
-#define NH_FLD_USER_DEFINED_ALL_FIELDS (BIT(2) - 1)
-
-/* Payload fields */
-#define NH_FLD_PAYLOAD_BUFFER BIT(0)
-#define NH_FLD_PAYLOAD_SIZE BIT(1)
-#define NH_FLD_MAX_FRM_SIZE BIT(2)
-#define NH_FLD_MIN_FRM_SIZE BIT(3)
-#define NH_FLD_PAYLOAD_TYPE BIT(4)
-#define NH_FLD_FRAME_SIZE BIT(5)
-#define NH_FLD_PAYLOAD_ALL_FIELDS (BIT(6) - 1)
-
-/* GRE fields */
-#define NH_FLD_GRE_TYPE BIT(0)
-#define NH_FLD_GRE_ALL_FIELDS (BIT(1) - 1)
-
-/* MINENCAP fields */
-#define NH_FLD_MINENCAP_SRC_IP BIT(0)
-#define NH_FLD_MINENCAP_DST_IP BIT(1)
-#define NH_FLD_MINENCAP_TYPE BIT(2)
-#define NH_FLD_MINENCAP_ALL_FIELDS (BIT(3) - 1)
-
-/* IPSEC AH fields */
-#define NH_FLD_IPSEC_AH_SPI BIT(0)
-#define NH_FLD_IPSEC_AH_NH BIT(1)
-#define NH_FLD_IPSEC_AH_ALL_FIELDS (BIT(2) - 1)
-
-/* IPSEC ESP fields */
-#define NH_FLD_IPSEC_ESP_SPI BIT(0)
-#define NH_FLD_IPSEC_ESP_SEQUENCE_NUM BIT(1)
-#define NH_FLD_IPSEC_ESP_ALL_FIELDS (BIT(2) - 1)
-
-/* MPLS fields */
-#define NH_FLD_MPLS_LABEL_STACK BIT(0)
-#define NH_FLD_MPLS_LABEL_STACK_ALL_FIELDS (BIT(1) - 1)
-
-/* MACSEC fields */
-#define NH_FLD_MACSEC_SECTAG BIT(0)
-#define NH_FLD_MACSEC_ALL_FIELDS (BIT(1) - 1)
-
-/* GTP fields */
-#define NH_FLD_GTP_TEID BIT(0)
-
-/* Supported protocols */
-enum net_prot {
- NET_PROT_NONE = 0,
- NET_PROT_PAYLOAD,
- NET_PROT_ETH,
- NET_PROT_VLAN,
- NET_PROT_IPV4,
- NET_PROT_IPV6,
- NET_PROT_IP,
- NET_PROT_TCP,
- NET_PROT_UDP,
- NET_PROT_UDP_LITE,
- NET_PROT_IPHC,
- NET_PROT_SCTP,
- NET_PROT_SCTP_CHUNK_DATA,
- NET_PROT_PPPOE,
- NET_PROT_PPP,
- NET_PROT_PPPMUX,
- NET_PROT_PPPMUX_SUBFRM,
- NET_PROT_L2TPV2,
- NET_PROT_L2TPV3_CTRL,
- NET_PROT_L2TPV3_SESS,
- NET_PROT_LLC,
- NET_PROT_LLC_SNAP,
- NET_PROT_NLPID,
- NET_PROT_SNAP,
- NET_PROT_MPLS,
- NET_PROT_IPSEC_AH,
- NET_PROT_IPSEC_ESP,
- NET_PROT_UDP_ENC_ESP, /* RFC 3948 */
- NET_PROT_MACSEC,
- NET_PROT_GRE,
- NET_PROT_MINENCAP,
- NET_PROT_DCCP,
- NET_PROT_ICMP,
- NET_PROT_IGMP,
- NET_PROT_ARP,
- NET_PROT_CAPWAP_DATA,
- NET_PROT_CAPWAP_CTRL,
- NET_PROT_RFC2684,
- NET_PROT_ICMPV6,
- NET_PROT_FCOE,
- NET_PROT_FIP,
- NET_PROT_ISCSI,
- NET_PROT_GTP,
- NET_PROT_USER_DEFINED_L2,
- NET_PROT_USER_DEFINED_L3,
- NET_PROT_USER_DEFINED_L4,
- NET_PROT_USER_DEFINED_L5,
- NET_PROT_USER_DEFINED_SHIM1,
- NET_PROT_USER_DEFINED_SHIM2,
-
- NET_PROT_DUMMY_LAST
-};
-
-/**
- * struct dpkg_extract - A structure for defining a single extraction
- * @type: Determines how the union below is interpreted:
- * DPKG_EXTRACT_FROM_HDR: selects 'from_hdr';
- * DPKG_EXTRACT_FROM_DATA: selects 'from_data';
- * DPKG_EXTRACT_FROM_PARSE: selects 'from_parse'
- * @extract: Selects extraction method
- * @extract.from_hdr: Used when 'type = DPKG_EXTRACT_FROM_HDR'
- * @extract.from_data: Used when 'type = DPKG_EXTRACT_FROM_DATA'
- * @extract.from_parse: Used when 'type = DPKG_EXTRACT_FROM_PARSE'
- * @extract.from_hdr.prot: Any of the supported headers
- * @extract.from_hdr.type: Defines the type of header extraction:
- * DPKG_FROM_HDR: use size & offset below;
- * DPKG_FROM_FIELD: use field, size and offset below;
- * DPKG_FULL_FIELD: use field below
- * @extract.from_hdr.field: One of the supported fields (NH_FLD_)
- * @extract.from_hdr.size: Size in bytes
- * @extract.from_hdr.offset: Byte offset
- * @extract.from_hdr.hdr_index: Clear for cases not listed below;
- * Used for protocols that may have more than a single
- * header, 0 indicates an outer header;
- * Supported protocols (possible values):
- * NET_PROT_VLAN (0, HDR_INDEX_LAST);
- * NET_PROT_MPLS (0, 1, HDR_INDEX_LAST);
- * NET_PROT_IP(0, HDR_INDEX_LAST);
- * NET_PROT_IPv4(0, HDR_INDEX_LAST);
- * NET_PROT_IPv6(0, HDR_INDEX_LAST);
- * @extract.from_data.size: Size in bytes
- * @extract.from_data.offset: Byte offset
- * @extract.from_parse.size: Size in bytes
- * @extract.from_parse.offset: Byte offset
- * @num_of_byte_masks: Defines the number of valid entries in the array below;
- * This is also the number of bytes to be used as masks
- * @masks: Masks parameters
- */
-struct dpkg_extract {
- enum dpkg_extract_type type;
- union {
- struct {
- enum net_prot prot;
- enum dpkg_extract_from_hdr_type type;
- u32 field;
- u8 size;
- u8 offset;
- u8 hdr_index;
- } from_hdr;
- struct {
- u8 size;
- u8 offset;
- } from_data;
- struct {
- u8 size;
- u8 offset;
- } from_parse;
- } extract;
-
- u8 num_of_byte_masks;
- struct dpkg_mask masks[DPKG_NUM_OF_MASKS];
-};
-
-/**
- * struct dpkg_profile_cfg - A structure for defining a full Key Generation
- * profile (rule)
- * @num_extracts: Defines the number of valid entries in the array below
- * @extracts: Array of required extractions
- */
-struct dpkg_profile_cfg {
- u8 num_extracts;
- struct dpkg_extract extracts[DPKG_MAX_NUM_OF_EXTRACTS];
-};
-
-#endif /* __FSL_DPKG_H_ */
--- a/drivers/staging/fsl-dpaa2/ethernet/dpni-cmd.h
+++ /dev/null
@@ -1,518 +0,0 @@
-/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
-/* Copyright 2013-2016 Freescale Semiconductor Inc.
- * Copyright 2016 NXP
- */
-#ifndef _FSL_DPNI_CMD_H
-#define _FSL_DPNI_CMD_H
-
-#include "dpni.h"
-
-/* DPNI Version */
-#define DPNI_VER_MAJOR 7
-#define DPNI_VER_MINOR 0
-#define DPNI_CMD_BASE_VERSION 1
-#define DPNI_CMD_ID_OFFSET 4
-
-#define DPNI_CMD(id) (((id) << DPNI_CMD_ID_OFFSET) | DPNI_CMD_BASE_VERSION)
-
-#define DPNI_CMDID_OPEN DPNI_CMD(0x801)
-#define DPNI_CMDID_CLOSE DPNI_CMD(0x800)
-#define DPNI_CMDID_CREATE DPNI_CMD(0x901)
-#define DPNI_CMDID_DESTROY DPNI_CMD(0x900)
-#define DPNI_CMDID_GET_API_VERSION DPNI_CMD(0xa01)
-
-#define DPNI_CMDID_ENABLE DPNI_CMD(0x002)
-#define DPNI_CMDID_DISABLE DPNI_CMD(0x003)
-#define DPNI_CMDID_GET_ATTR DPNI_CMD(0x004)
-#define DPNI_CMDID_RESET DPNI_CMD(0x005)
-#define DPNI_CMDID_IS_ENABLED DPNI_CMD(0x006)
-
-#define DPNI_CMDID_SET_IRQ DPNI_CMD(0x010)
-#define DPNI_CMDID_GET_IRQ DPNI_CMD(0x011)
-#define DPNI_CMDID_SET_IRQ_ENABLE DPNI_CMD(0x012)
-#define DPNI_CMDID_GET_IRQ_ENABLE DPNI_CMD(0x013)
-#define DPNI_CMDID_SET_IRQ_MASK DPNI_CMD(0x014)
-#define DPNI_CMDID_GET_IRQ_MASK DPNI_CMD(0x015)
-#define DPNI_CMDID_GET_IRQ_STATUS DPNI_CMD(0x016)
-#define DPNI_CMDID_CLEAR_IRQ_STATUS DPNI_CMD(0x017)
-
-#define DPNI_CMDID_SET_POOLS DPNI_CMD(0x200)
-#define DPNI_CMDID_SET_ERRORS_BEHAVIOR DPNI_CMD(0x20B)
-
-#define DPNI_CMDID_GET_QDID DPNI_CMD(0x210)
-#define DPNI_CMDID_GET_TX_DATA_OFFSET DPNI_CMD(0x212)
-#define DPNI_CMDID_GET_LINK_STATE DPNI_CMD(0x215)
-#define DPNI_CMDID_SET_MAX_FRAME_LENGTH DPNI_CMD(0x216)
-#define DPNI_CMDID_GET_MAX_FRAME_LENGTH DPNI_CMD(0x217)
-#define DPNI_CMDID_SET_LINK_CFG DPNI_CMD(0x21A)
-#define DPNI_CMDID_SET_TX_SHAPING DPNI_CMD(0x21B)
-
-#define DPNI_CMDID_SET_MCAST_PROMISC DPNI_CMD(0x220)
-#define DPNI_CMDID_GET_MCAST_PROMISC DPNI_CMD(0x221)
-#define DPNI_CMDID_SET_UNICAST_PROMISC DPNI_CMD(0x222)
-#define DPNI_CMDID_GET_UNICAST_PROMISC DPNI_CMD(0x223)
-#define DPNI_CMDID_SET_PRIM_MAC DPNI_CMD(0x224)
-#define DPNI_CMDID_GET_PRIM_MAC DPNI_CMD(0x225)
-#define DPNI_CMDID_ADD_MAC_ADDR DPNI_CMD(0x226)
-#define DPNI_CMDID_REMOVE_MAC_ADDR DPNI_CMD(0x227)
-#define DPNI_CMDID_CLR_MAC_FILTERS DPNI_CMD(0x228)
-
-#define DPNI_CMDID_SET_RX_TC_DIST DPNI_CMD(0x235)
-
-#define DPNI_CMDID_ADD_FS_ENT DPNI_CMD(0x244)
-#define DPNI_CMDID_REMOVE_FS_ENT DPNI_CMD(0x245)
-#define DPNI_CMDID_CLR_FS_ENT DPNI_CMD(0x246)
-
-#define DPNI_CMDID_GET_STATISTICS DPNI_CMD(0x25D)
-#define DPNI_CMDID_GET_QUEUE DPNI_CMD(0x25F)
-#define DPNI_CMDID_SET_QUEUE DPNI_CMD(0x260)
-#define DPNI_CMDID_GET_TAILDROP DPNI_CMD(0x261)
-#define DPNI_CMDID_SET_TAILDROP DPNI_CMD(0x262)
-
-#define DPNI_CMDID_GET_PORT_MAC_ADDR DPNI_CMD(0x263)
-
-#define DPNI_CMDID_GET_BUFFER_LAYOUT DPNI_CMD(0x264)
-#define DPNI_CMDID_SET_BUFFER_LAYOUT DPNI_CMD(0x265)
-
-#define DPNI_CMDID_SET_TX_CONFIRMATION_MODE DPNI_CMD(0x266)
-#define DPNI_CMDID_SET_CONGESTION_NOTIFICATION DPNI_CMD(0x267)
-#define DPNI_CMDID_GET_CONGESTION_NOTIFICATION DPNI_CMD(0x268)
-#define DPNI_CMDID_SET_EARLY_DROP DPNI_CMD(0x269)
-#define DPNI_CMDID_GET_EARLY_DROP DPNI_CMD(0x26A)
-#define DPNI_CMDID_GET_OFFLOAD DPNI_CMD(0x26B)
-#define DPNI_CMDID_SET_OFFLOAD DPNI_CMD(0x26C)
-
-/* Macros for accessing command fields smaller than 1byte */
-#define DPNI_MASK(field) \
- GENMASK(DPNI_##field##_SHIFT + DPNI_##field##_SIZE - 1, \
- DPNI_##field##_SHIFT)
-
-#define dpni_set_field(var, field, val) \
- ((var) |= (((val) << DPNI_##field##_SHIFT) & DPNI_MASK(field)))
-#define dpni_get_field(var, field) \
- (((var) & DPNI_MASK(field)) >> DPNI_##field##_SHIFT)
-
-struct dpni_cmd_open {
- __le32 dpni_id;
-};
-
-#define DPNI_BACKUP_POOL(val, order) (((val) & 0x1) << (order))
-struct dpni_cmd_set_pools {
- /* cmd word 0 */
- u8 num_dpbp;
- u8 backup_pool_mask;
- __le16 pad;
- /* cmd word 0..4 */
- __le32 dpbp_id[DPNI_MAX_DPBP];
- /* cmd word 4..6 */
- __le16 buffer_size[DPNI_MAX_DPBP];
-};
-
-/* The enable indication is always the least significant bit */
-#define DPNI_ENABLE_SHIFT 0
-#define DPNI_ENABLE_SIZE 1
-
-struct dpni_rsp_is_enabled {
- u8 enabled;
-};
-
-struct dpni_rsp_get_irq {
- /* response word 0 */
- __le32 irq_val;
- __le32 pad;
- /* response word 1 */
- __le64 irq_addr;
- /* response word 2 */
- __le32 irq_num;
- __le32 type;
-};
-
-struct dpni_cmd_set_irq_enable {
- u8 enable;
- u8 pad[3];
- u8 irq_index;
-};
-
-struct dpni_cmd_get_irq_enable {
- __le32 pad;
- u8 irq_index;
-};
-
-struct dpni_rsp_get_irq_enable {
- u8 enabled;
-};
-
-struct dpni_cmd_set_irq_mask {
- __le32 mask;
- u8 irq_index;
-};
-
-struct dpni_cmd_get_irq_mask {
- __le32 pad;
- u8 irq_index;
-};
-
-struct dpni_rsp_get_irq_mask {
- __le32 mask;
-};
-
-struct dpni_cmd_get_irq_status {
- __le32 status;
- u8 irq_index;
-};
-
-struct dpni_rsp_get_irq_status {
- __le32 status;
-};
-
-struct dpni_cmd_clear_irq_status {
- __le32 status;
- u8 irq_index;
-};
-
-struct dpni_rsp_get_attr {
- /* response word 0 */
- __le32 options;
- u8 num_queues;
- u8 num_tcs;
- u8 mac_filter_entries;
- u8 pad0;
- /* response word 1 */
- u8 vlan_filter_entries;
- u8 pad1;
- u8 qos_entries;
- u8 pad2;
- __le16 fs_entries;
- __le16 pad3;
- /* response word 2 */
- u8 qos_key_size;
- u8 fs_key_size;
- __le16 wriop_version;
-};
-
-#define DPNI_ERROR_ACTION_SHIFT 0
-#define DPNI_ERROR_ACTION_SIZE 4
-#define DPNI_FRAME_ANN_SHIFT 4
-#define DPNI_FRAME_ANN_SIZE 1
-
-struct dpni_cmd_set_errors_behavior {
- __le32 errors;
- /* from least significant bit: error_action:4, set_frame_annotation:1 */
- u8 flags;
-};
-
-/* There are 3 separate commands for configuring Rx, Tx and Tx confirmation
- * buffer layouts, but they all share the same parameters.
- * If one of the functions changes, below structure needs to be split.
- */
-
-#define DPNI_PASS_TS_SHIFT 0
-#define DPNI_PASS_TS_SIZE 1
-#define DPNI_PASS_PR_SHIFT 1
-#define DPNI_PASS_PR_SIZE 1
-#define DPNI_PASS_FS_SHIFT 2
-#define DPNI_PASS_FS_SIZE 1
-
-struct dpni_cmd_get_buffer_layout {
- u8 qtype;
-};
-
-struct dpni_rsp_get_buffer_layout {
- /* response word 0 */
- u8 pad0[6];
- /* from LSB: pass_timestamp:1, parser_result:1, frame_status:1 */
- u8 flags;
- u8 pad1;
- /* response word 1 */
- __le16 private_data_size;
- __le16 data_align;
- __le16 head_room;
- __le16 tail_room;
-};
-
-struct dpni_cmd_set_buffer_layout {
- /* cmd word 0 */
- u8 qtype;
- u8 pad0[3];
- __le16 options;
- /* from LSB: pass_timestamp:1, parser_result:1, frame_status:1 */
- u8 flags;
- u8 pad1;
- /* cmd word 1 */
- __le16 private_data_size;
- __le16 data_align;
- __le16 head_room;
- __le16 tail_room;
-};
-
-struct dpni_cmd_set_offload {
- u8 pad[3];
- u8 dpni_offload;
- __le32 config;
-};
-
-struct dpni_cmd_get_offload {
- u8 pad[3];
- u8 dpni_offload;
-};
-
-struct dpni_rsp_get_offload {
- __le32 pad;
- __le32 config;
-};
-
-struct dpni_cmd_get_qdid {
- u8 qtype;
-};
-
-struct dpni_rsp_get_qdid {
- __le16 qdid;
-};
-
-struct dpni_rsp_get_tx_data_offset {
- __le16 data_offset;
-};
-
-struct dpni_cmd_get_statistics {
- u8 page_number;
-};
-
-struct dpni_rsp_get_statistics {
- __le64 counter[DPNI_STATISTICS_CNT];
-};
-
-struct dpni_cmd_set_link_cfg {
- /* cmd word 0 */
- __le64 pad0;
- /* cmd word 1 */
- __le32 rate;
- __le32 pad1;
- /* cmd word 2 */
- __le64 options;
-};
-
-#define DPNI_LINK_STATE_SHIFT 0
-#define DPNI_LINK_STATE_SIZE 1
-
-struct dpni_rsp_get_link_state {
- /* response word 0 */
- __le32 pad0;
- /* from LSB: up:1 */
- u8 flags;
- u8 pad1[3];
- /* response word 1 */
- __le32 rate;
- __le32 pad2;
- /* response word 2 */
- __le64 options;
-};
-
-struct dpni_cmd_set_max_frame_length {
- __le16 max_frame_length;
-};
-
-struct dpni_rsp_get_max_frame_length {
- __le16 max_frame_length;
-};
-
-struct dpni_cmd_set_multicast_promisc {
- u8 enable;
-};
-
-struct dpni_rsp_get_multicast_promisc {
- u8 enabled;
-};
-
-struct dpni_cmd_set_unicast_promisc {
- u8 enable;
-};
-
-struct dpni_rsp_get_unicast_promisc {
- u8 enabled;
-};
-
-struct dpni_cmd_set_primary_mac_addr {
- __le16 pad;
- u8 mac_addr[6];
-};
-
-struct dpni_rsp_get_primary_mac_addr {
- __le16 pad;
- u8 mac_addr[6];
-};
-
-struct dpni_rsp_get_port_mac_addr {
- __le16 pad;
- u8 mac_addr[6];
-};
-
-struct dpni_cmd_add_mac_addr {
- __le16 pad;
- u8 mac_addr[6];
-};
-
-struct dpni_cmd_remove_mac_addr {
- __le16 pad;
- u8 mac_addr[6];
-};
-
-#define DPNI_UNICAST_FILTERS_SHIFT 0
-#define DPNI_UNICAST_FILTERS_SIZE 1
-#define DPNI_MULTICAST_FILTERS_SHIFT 1
-#define DPNI_MULTICAST_FILTERS_SIZE 1
-
-struct dpni_cmd_clear_mac_filters {
- /* from LSB: unicast:1, multicast:1 */
- u8 flags;
-};
-
-#define DPNI_DIST_MODE_SHIFT 0
-#define DPNI_DIST_MODE_SIZE 4
-#define DPNI_MISS_ACTION_SHIFT 4
-#define DPNI_MISS_ACTION_SIZE 4
-
-struct dpni_cmd_set_rx_tc_dist {
- /* cmd word 0 */
- __le16 dist_size;
- u8 tc_id;
- /* from LSB: dist_mode:4, miss_action:4 */
- u8 flags;
- __le16 pad0;
- __le16 default_flow_id;
- /* cmd word 1..5 */
- __le64 pad1[5];
- /* cmd word 6 */
- __le64 key_cfg_iova;
-};
-
-/* dpni_set_rx_tc_dist extension (structure of the DMA-able memory at
- * key_cfg_iova)
- */
-struct dpni_mask_cfg {
- u8 mask;
- u8 offset;
-};
-
-#define DPNI_EFH_TYPE_SHIFT 0
-#define DPNI_EFH_TYPE_SIZE 4
-#define DPNI_EXTRACT_TYPE_SHIFT 0
-#define DPNI_EXTRACT_TYPE_SIZE 4
-
-struct dpni_dist_extract {
- /* word 0 */
- u8 prot;
- /* EFH type stored in the 4 least significant bits */
- u8 efh_type;
- u8 size;
- u8 offset;
- __le32 field;
- /* word 1 */
- u8 hdr_index;
- u8 constant;
- u8 num_of_repeats;
- u8 num_of_byte_masks;
- /* Extraction type is stored in the 4 LSBs */
- u8 extract_type;
- u8 pad[3];
- /* word 2 */
- struct dpni_mask_cfg masks[4];
-};
-
-struct dpni_ext_set_rx_tc_dist {
- /* extension word 0 */
- u8 num_extracts;
- u8 pad[7];
- /* words 1..25 */
- struct dpni_dist_extract extracts[DPKG_MAX_NUM_OF_EXTRACTS];
-};
-
-struct dpni_cmd_get_queue {
- u8 qtype;
- u8 tc;
- u8 index;
-};
-
-#define DPNI_DEST_TYPE_SHIFT 0
-#define DPNI_DEST_TYPE_SIZE 4
-#define DPNI_STASH_CTRL_SHIFT 6
-#define DPNI_STASH_CTRL_SIZE 1
-#define DPNI_HOLD_ACTIVE_SHIFT 7
-#define DPNI_HOLD_ACTIVE_SIZE 1
-
-struct dpni_rsp_get_queue {
- /* response word 0 */
- __le64 pad0;
- /* response word 1 */
- __le32 dest_id;
- __le16 pad1;
- u8 dest_prio;
- /* From LSB: dest_type:4, pad:2, flc_stash_ctrl:1, hold_active:1 */
- u8 flags;
- /* response word 2 */
- __le64 flc;
- /* response word 3 */
- __le64 user_context;
- /* response word 4 */
- __le32 fqid;
- __le16 qdbin;
-};
-
-struct dpni_cmd_set_queue {
- /* cmd word 0 */
- u8 qtype;
- u8 tc;
- u8 index;
- u8 options;
- __le32 pad0;
- /* cmd word 1 */
- __le32 dest_id;
- __le16 pad1;
- u8 dest_prio;
- u8 flags;
- /* cmd word 2 */
- __le64 flc;
- /* cmd word 3 */
- __le64 user_context;
-};
-
-struct dpni_cmd_set_taildrop {
- /* cmd word 0 */
- u8 congestion_point;
- u8 qtype;
- u8 tc;
- u8 index;
- __le32 pad0;
- /* cmd word 1 */
- /* Only least significant bit is relevant */
- u8 enable;
- u8 pad1;
- u8 units;
- u8 pad2;
- __le32 threshold;
-};
-
-struct dpni_cmd_get_taildrop {
- u8 congestion_point;
- u8 qtype;
- u8 tc;
- u8 index;
-};
-
-struct dpni_rsp_get_taildrop {
- /* cmd word 0 */
- __le64 pad0;
- /* cmd word 1 */
- /* only least significant bit is relevant */
- u8 enable;
- u8 pad1;
- u8 units;
- u8 pad2;
- __le32 threshold;
-};
-
-struct dpni_rsp_get_api_version {
- __le16 major;
- __le16 minor;
-};
-
-#endif /* _FSL_DPNI_CMD_H */
--- a/drivers/staging/fsl-dpaa2/ethernet/dpni.c
+++ /dev/null
@@ -1,1600 +0,0 @@
-// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
-/* Copyright 2013-2016 Freescale Semiconductor Inc.
- * Copyright 2016 NXP
- */
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/fsl/mc.h>
-#include "dpni.h"
-#include "dpni-cmd.h"
-
-/**
- * dpni_prepare_key_cfg() - function prepare extract parameters
- * @cfg: defining a full Key Generation profile (rule)
- * @key_cfg_buf: Zeroed 256 bytes of memory before mapping it to DMA
- *
- * This function has to be called before the following functions:
- * - dpni_set_rx_tc_dist()
- * - dpni_set_qos_table()
- */
-int dpni_prepare_key_cfg(const struct dpkg_profile_cfg *cfg, u8 *key_cfg_buf)
-{
- int i, j;
- struct dpni_ext_set_rx_tc_dist *dpni_ext;
- struct dpni_dist_extract *extr;
-
- if (cfg->num_extracts > DPKG_MAX_NUM_OF_EXTRACTS)
- return -EINVAL;
-
- dpni_ext = (struct dpni_ext_set_rx_tc_dist *)key_cfg_buf;
- dpni_ext->num_extracts = cfg->num_extracts;
-
- for (i = 0; i < cfg->num_extracts; i++) {
- extr = &dpni_ext->extracts[i];
-
- switch (cfg->extracts[i].type) {
- case DPKG_EXTRACT_FROM_HDR:
- extr->prot = cfg->extracts[i].extract.from_hdr.prot;
- dpni_set_field(extr->efh_type, EFH_TYPE,
- cfg->extracts[i].extract.from_hdr.type);
- extr->size = cfg->extracts[i].extract.from_hdr.size;
- extr->offset = cfg->extracts[i].extract.from_hdr.offset;
- extr->field = cpu_to_le32(
- cfg->extracts[i].extract.from_hdr.field);
- extr->hdr_index =
- cfg->extracts[i].extract.from_hdr.hdr_index;
- break;
- case DPKG_EXTRACT_FROM_DATA:
- extr->size = cfg->extracts[i].extract.from_data.size;
- extr->offset =
- cfg->extracts[i].extract.from_data.offset;
- break;
- case DPKG_EXTRACT_FROM_PARSE:
- extr->size = cfg->extracts[i].extract.from_parse.size;
- extr->offset =
- cfg->extracts[i].extract.from_parse.offset;
- break;
- default:
- return -EINVAL;
- }
-
- extr->num_of_byte_masks = cfg->extracts[i].num_of_byte_masks;
- dpni_set_field(extr->extract_type, EXTRACT_TYPE,
- cfg->extracts[i].type);
-
- for (j = 0; j < DPKG_NUM_OF_MASKS; j++) {
- extr->masks[j].mask = cfg->extracts[i].masks[j].mask;
- extr->masks[j].offset =
- cfg->extracts[i].masks[j].offset;
- }
- }
-
- return 0;
-}
-
-/**
- * dpni_open() - Open a control session for the specified object
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @dpni_id: DPNI unique ID
- * @token: Returned token; use in subsequent API calls
- *
- * This function can be used to open a control session for an
- * already created object; an object may have been declared in
- * the DPL or by calling the dpni_create() function.
- * This function returns a unique authentication token,
- * associated with the specific object ID and the specific MC
- * portal; this token must be used in all subsequent commands for
- * this specific object.
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_open(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- int dpni_id,
- u16 *token)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_open *cmd_params;
-
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_OPEN,
- cmd_flags,
- 0);
- cmd_params = (struct dpni_cmd_open *)cmd.params;
- cmd_params->dpni_id = cpu_to_le32(dpni_id);
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- *token = mc_cmd_hdr_read_token(&cmd);
-
- return 0;
-}
-
-/**
- * dpni_close() - Close the control session of the object
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- *
- * After this function is called, no further operations are
- * allowed on the object without opening a new control session.
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_close(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token)
-{
- struct fsl_mc_command cmd = { 0 };
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_CLOSE,
- cmd_flags,
- token);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_set_pools() - Set buffer pools configuration
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @cfg: Buffer pools configuration
- *
- * mandatory for DPNI operation
- * warning:Allowed only when DPNI is disabled
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_set_pools(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- const struct dpni_pools_cfg *cfg)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_set_pools *cmd_params;
- int i;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_POOLS,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_set_pools *)cmd.params;
- cmd_params->num_dpbp = cfg->num_dpbp;
- for (i = 0; i < DPNI_MAX_DPBP; i++) {
- cmd_params->dpbp_id[i] = cpu_to_le32(cfg->pools[i].dpbp_id);
- cmd_params->buffer_size[i] =
- cpu_to_le16(cfg->pools[i].buffer_size);
- cmd_params->backup_pool_mask |=
- DPNI_BACKUP_POOL(cfg->pools[i].backup_pool, i);
- }
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_enable() - Enable the DPNI, allow sending and receiving frames.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_enable(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token)
-{
- struct fsl_mc_command cmd = { 0 };
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_ENABLE,
- cmd_flags,
- token);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_disable() - Disable the DPNI, stop sending and receiving frames.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_disable(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token)
-{
- struct fsl_mc_command cmd = { 0 };
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_DISABLE,
- cmd_flags,
- token);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_is_enabled() - Check if the DPNI is enabled.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @en: Returns '1' if object is enabled; '0' otherwise
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_is_enabled(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int *en)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_rsp_is_enabled *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_IS_ENABLED,
- cmd_flags,
- token);
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpni_rsp_is_enabled *)cmd.params;
- *en = dpni_get_field(rsp_params->enabled, ENABLE);
-
- return 0;
-}
-
-/**
- * dpni_reset() - Reset the DPNI, returns the object to initial state.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_reset(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token)
-{
- struct fsl_mc_command cmd = { 0 };
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_RESET,
- cmd_flags,
- token);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_set_irq_enable() - Set overall interrupt state.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @irq_index: The interrupt index to configure
- * @en: Interrupt state: - enable = 1, disable = 0
- *
- * Allows GPP software to control when interrupts are generated.
- * Each interrupt can have up to 32 causes. The enable/disable control's the
- * overall interrupt state. if the interrupt is disabled no causes will cause
- * an interrupt.
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_set_irq_enable(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u8 en)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_set_irq_enable *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_IRQ_ENABLE,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_set_irq_enable *)cmd.params;
- dpni_set_field(cmd_params->enable, ENABLE, en);
- cmd_params->irq_index = irq_index;
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_get_irq_enable() - Get overall interrupt state
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @irq_index: The interrupt index to configure
- * @en: Returned interrupt state - enable = 1, disable = 0
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_get_irq_enable(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u8 *en)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_get_irq_enable *cmd_params;
- struct dpni_rsp_get_irq_enable *rsp_params;
-
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_IRQ_ENABLE,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_get_irq_enable *)cmd.params;
- cmd_params->irq_index = irq_index;
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpni_rsp_get_irq_enable *)cmd.params;
- *en = dpni_get_field(rsp_params->enabled, ENABLE);
-
- return 0;
-}
-
-/**
- * dpni_set_irq_mask() - Set interrupt mask.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @irq_index: The interrupt index to configure
- * @mask: event mask to trigger interrupt;
- * each bit:
- * 0 = ignore event
- * 1 = consider event for asserting IRQ
- *
- * Every interrupt can have up to 32 causes and the interrupt model supports
- * masking/unmasking each cause independently
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_set_irq_mask(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 mask)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_set_irq_mask *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_IRQ_MASK,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_set_irq_mask *)cmd.params;
- cmd_params->mask = cpu_to_le32(mask);
- cmd_params->irq_index = irq_index;
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_get_irq_mask() - Get interrupt mask.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @irq_index: The interrupt index to configure
- * @mask: Returned event mask to trigger interrupt
- *
- * Every interrupt can have up to 32 causes and the interrupt model supports
- * masking/unmasking each cause independently
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_get_irq_mask(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 *mask)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_get_irq_mask *cmd_params;
- struct dpni_rsp_get_irq_mask *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_IRQ_MASK,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_get_irq_mask *)cmd.params;
- cmd_params->irq_index = irq_index;
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpni_rsp_get_irq_mask *)cmd.params;
- *mask = le32_to_cpu(rsp_params->mask);
-
- return 0;
-}
-
-/**
- * dpni_get_irq_status() - Get the current status of any pending interrupts.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @irq_index: The interrupt index to configure
- * @status: Returned interrupts status - one bit per cause:
- * 0 = no interrupt pending
- * 1 = interrupt pending
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_get_irq_status(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 *status)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_get_irq_status *cmd_params;
- struct dpni_rsp_get_irq_status *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_IRQ_STATUS,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_get_irq_status *)cmd.params;
- cmd_params->status = cpu_to_le32(*status);
- cmd_params->irq_index = irq_index;
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpni_rsp_get_irq_status *)cmd.params;
- *status = le32_to_cpu(rsp_params->status);
-
- return 0;
-}
-
-/**
- * dpni_clear_irq_status() - Clear a pending interrupt's status
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @irq_index: The interrupt index to configure
- * @status: bits to clear (W1C) - one bit per cause:
- * 0 = don't change
- * 1 = clear status bit
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_clear_irq_status(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 status)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_clear_irq_status *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_CLEAR_IRQ_STATUS,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_clear_irq_status *)cmd.params;
- cmd_params->irq_index = irq_index;
- cmd_params->status = cpu_to_le32(status);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_get_attributes() - Retrieve DPNI attributes.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @attr: Object's attributes
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_get_attributes(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- struct dpni_attr *attr)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_rsp_get_attr *rsp_params;
-
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_ATTR,
- cmd_flags,
- token);
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpni_rsp_get_attr *)cmd.params;
- attr->options = le32_to_cpu(rsp_params->options);
- attr->num_queues = rsp_params->num_queues;
- attr->num_tcs = rsp_params->num_tcs;
- attr->mac_filter_entries = rsp_params->mac_filter_entries;
- attr->vlan_filter_entries = rsp_params->vlan_filter_entries;
- attr->qos_entries = rsp_params->qos_entries;
- attr->fs_entries = le16_to_cpu(rsp_params->fs_entries);
- attr->qos_key_size = rsp_params->qos_key_size;
- attr->fs_key_size = rsp_params->fs_key_size;
- attr->wriop_version = le16_to_cpu(rsp_params->wriop_version);
-
- return 0;
-}
-
-/**
- * dpni_set_errors_behavior() - Set errors behavior
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @cfg: Errors configuration
- *
- * this function may be called numerous times with different
- * error masks
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_set_errors_behavior(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- struct dpni_error_cfg *cfg)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_set_errors_behavior *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_ERRORS_BEHAVIOR,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_set_errors_behavior *)cmd.params;
- cmd_params->errors = cpu_to_le32(cfg->errors);
- dpni_set_field(cmd_params->flags, ERROR_ACTION, cfg->error_action);
- dpni_set_field(cmd_params->flags, FRAME_ANN, cfg->set_frame_annotation);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_get_buffer_layout() - Retrieve buffer layout attributes.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @qtype: Type of queue to retrieve configuration for
- * @layout: Returns buffer layout attributes
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_get_buffer_layout(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- enum dpni_queue_type qtype,
- struct dpni_buffer_layout *layout)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_get_buffer_layout *cmd_params;
- struct dpni_rsp_get_buffer_layout *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_BUFFER_LAYOUT,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_get_buffer_layout *)cmd.params;
- cmd_params->qtype = qtype;
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpni_rsp_get_buffer_layout *)cmd.params;
- layout->pass_timestamp = dpni_get_field(rsp_params->flags, PASS_TS);
- layout->pass_parser_result = dpni_get_field(rsp_params->flags, PASS_PR);
- layout->pass_frame_status = dpni_get_field(rsp_params->flags, PASS_FS);
- layout->private_data_size = le16_to_cpu(rsp_params->private_data_size);
- layout->data_align = le16_to_cpu(rsp_params->data_align);
- layout->data_head_room = le16_to_cpu(rsp_params->head_room);
- layout->data_tail_room = le16_to_cpu(rsp_params->tail_room);
-
- return 0;
-}
-
-/**
- * dpni_set_buffer_layout() - Set buffer layout configuration.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @qtype: Type of queue this configuration applies to
- * @layout: Buffer layout configuration
- *
- * Return: '0' on Success; Error code otherwise.
- *
- * @warning Allowed only when DPNI is disabled
- */
-int dpni_set_buffer_layout(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- enum dpni_queue_type qtype,
- const struct dpni_buffer_layout *layout)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_set_buffer_layout *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_BUFFER_LAYOUT,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_set_buffer_layout *)cmd.params;
- cmd_params->qtype = qtype;
- cmd_params->options = cpu_to_le16(layout->options);
- dpni_set_field(cmd_params->flags, PASS_TS, layout->pass_timestamp);
- dpni_set_field(cmd_params->flags, PASS_PR, layout->pass_parser_result);
- dpni_set_field(cmd_params->flags, PASS_FS, layout->pass_frame_status);
- cmd_params->private_data_size = cpu_to_le16(layout->private_data_size);
- cmd_params->data_align = cpu_to_le16(layout->data_align);
- cmd_params->head_room = cpu_to_le16(layout->data_head_room);
- cmd_params->tail_room = cpu_to_le16(layout->data_tail_room);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_set_offload() - Set DPNI offload configuration.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @type: Type of DPNI offload
- * @config: Offload configuration.
- * For checksum offloads, non-zero value enables the offload
- *
- * Return: '0' on Success; Error code otherwise.
- *
- * @warning Allowed only when DPNI is disabled
- */
-
-int dpni_set_offload(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- enum dpni_offload type,
- u32 config)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_set_offload *cmd_params;
-
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_OFFLOAD,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_set_offload *)cmd.params;
- cmd_params->dpni_offload = type;
- cmd_params->config = cpu_to_le32(config);
-
- return mc_send_command(mc_io, &cmd);
-}
-
-int dpni_get_offload(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- enum dpni_offload type,
- u32 *config)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_get_offload *cmd_params;
- struct dpni_rsp_get_offload *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_OFFLOAD,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_get_offload *)cmd.params;
- cmd_params->dpni_offload = type;
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpni_rsp_get_offload *)cmd.params;
- *config = le32_to_cpu(rsp_params->config);
-
- return 0;
-}
-
-/**
- * dpni_get_qdid() - Get the Queuing Destination ID (QDID) that should be used
- * for enqueue operations
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @qtype: Type of queue to receive QDID for
- * @qdid: Returned virtual QDID value that should be used as an argument
- * in all enqueue operations
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_get_qdid(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- enum dpni_queue_type qtype,
- u16 *qdid)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_get_qdid *cmd_params;
- struct dpni_rsp_get_qdid *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_QDID,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_get_qdid *)cmd.params;
- cmd_params->qtype = qtype;
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpni_rsp_get_qdid *)cmd.params;
- *qdid = le16_to_cpu(rsp_params->qdid);
-
- return 0;
-}
-
-/**
- * dpni_get_tx_data_offset() - Get the Tx data offset (from start of buffer)
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @data_offset: Tx data offset (from start of buffer)
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_get_tx_data_offset(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u16 *data_offset)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_rsp_get_tx_data_offset *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_TX_DATA_OFFSET,
- cmd_flags,
- token);
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpni_rsp_get_tx_data_offset *)cmd.params;
- *data_offset = le16_to_cpu(rsp_params->data_offset);
-
- return 0;
-}
-
-/**
- * dpni_set_link_cfg() - set the link configuration.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @cfg: Link configuration
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_set_link_cfg(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- const struct dpni_link_cfg *cfg)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_set_link_cfg *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_LINK_CFG,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_set_link_cfg *)cmd.params;
- cmd_params->rate = cpu_to_le32(cfg->rate);
- cmd_params->options = cpu_to_le64(cfg->options);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_get_link_state() - Return the link state (either up or down)
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @state: Returned link state;
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_get_link_state(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- struct dpni_link_state *state)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_rsp_get_link_state *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_LINK_STATE,
- cmd_flags,
- token);
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpni_rsp_get_link_state *)cmd.params;
- state->up = dpni_get_field(rsp_params->flags, LINK_STATE);
- state->rate = le32_to_cpu(rsp_params->rate);
- state->options = le64_to_cpu(rsp_params->options);
-
- return 0;
-}
-
-/**
- * dpni_set_max_frame_length() - Set the maximum received frame length.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @max_frame_length: Maximum received frame length (in
- * bytes); frame is discarded if its
- * length exceeds this value
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_set_max_frame_length(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u16 max_frame_length)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_set_max_frame_length *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_MAX_FRAME_LENGTH,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_set_max_frame_length *)cmd.params;
- cmd_params->max_frame_length = cpu_to_le16(max_frame_length);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_get_max_frame_length() - Get the maximum received frame length.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @max_frame_length: Maximum received frame length (in
- * bytes); frame is discarded if its
- * length exceeds this value
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_get_max_frame_length(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u16 *max_frame_length)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_rsp_get_max_frame_length *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_MAX_FRAME_LENGTH,
- cmd_flags,
- token);
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpni_rsp_get_max_frame_length *)cmd.params;
- *max_frame_length = le16_to_cpu(rsp_params->max_frame_length);
-
- return 0;
-}
-
-/**
- * dpni_set_multicast_promisc() - Enable/disable multicast promiscuous mode
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @en: Set to '1' to enable; '0' to disable
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_set_multicast_promisc(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int en)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_set_multicast_promisc *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_MCAST_PROMISC,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_set_multicast_promisc *)cmd.params;
- dpni_set_field(cmd_params->enable, ENABLE, en);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_get_multicast_promisc() - Get multicast promiscuous mode
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @en: Returns '1' if enabled; '0' otherwise
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_get_multicast_promisc(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int *en)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_rsp_get_multicast_promisc *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_MCAST_PROMISC,
- cmd_flags,
- token);
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpni_rsp_get_multicast_promisc *)cmd.params;
- *en = dpni_get_field(rsp_params->enabled, ENABLE);
-
- return 0;
-}
-
-/**
- * dpni_set_unicast_promisc() - Enable/disable unicast promiscuous mode
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @en: Set to '1' to enable; '0' to disable
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_set_unicast_promisc(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int en)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_set_unicast_promisc *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_UNICAST_PROMISC,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_set_unicast_promisc *)cmd.params;
- dpni_set_field(cmd_params->enable, ENABLE, en);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_get_unicast_promisc() - Get unicast promiscuous mode
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @en: Returns '1' if enabled; '0' otherwise
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_get_unicast_promisc(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int *en)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_rsp_get_unicast_promisc *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_UNICAST_PROMISC,
- cmd_flags,
- token);
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpni_rsp_get_unicast_promisc *)cmd.params;
- *en = dpni_get_field(rsp_params->enabled, ENABLE);
-
- return 0;
-}
-
-/**
- * dpni_set_primary_mac_addr() - Set the primary MAC address
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @mac_addr: MAC address to set as primary address
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_set_primary_mac_addr(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- const u8 mac_addr[6])
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_set_primary_mac_addr *cmd_params;
- int i;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_PRIM_MAC,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_set_primary_mac_addr *)cmd.params;
- for (i = 0; i < 6; i++)
- cmd_params->mac_addr[i] = mac_addr[5 - i];
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_get_primary_mac_addr() - Get the primary MAC address
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @mac_addr: Returned MAC address
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_get_primary_mac_addr(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 mac_addr[6])
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_rsp_get_primary_mac_addr *rsp_params;
- int i, err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_PRIM_MAC,
- cmd_flags,
- token);
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpni_rsp_get_primary_mac_addr *)cmd.params;
- for (i = 0; i < 6; i++)
- mac_addr[5 - i] = rsp_params->mac_addr[i];
-
- return 0;
-}
-
-/**
- * dpni_get_port_mac_addr() - Retrieve MAC address associated to the physical
- * port the DPNI is attached to
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @mac_addr: MAC address of the physical port, if any, otherwise 0
- *
- * The primary MAC address is not cleared by this operation.
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_get_port_mac_addr(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 mac_addr[6])
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_rsp_get_port_mac_addr *rsp_params;
- int i, err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_PORT_MAC_ADDR,
- cmd_flags,
- token);
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpni_rsp_get_port_mac_addr *)cmd.params;
- for (i = 0; i < 6; i++)
- mac_addr[5 - i] = rsp_params->mac_addr[i];
-
- return 0;
-}
-
-/**
- * dpni_add_mac_addr() - Add MAC address filter
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @mac_addr: MAC address to add
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_add_mac_addr(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- const u8 mac_addr[6])
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_add_mac_addr *cmd_params;
- int i;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_ADD_MAC_ADDR,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_add_mac_addr *)cmd.params;
- for (i = 0; i < 6; i++)
- cmd_params->mac_addr[i] = mac_addr[5 - i];
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_remove_mac_addr() - Remove MAC address filter
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @mac_addr: MAC address to remove
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_remove_mac_addr(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- const u8 mac_addr[6])
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_remove_mac_addr *cmd_params;
- int i;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_REMOVE_MAC_ADDR,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_remove_mac_addr *)cmd.params;
- for (i = 0; i < 6; i++)
- cmd_params->mac_addr[i] = mac_addr[5 - i];
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_clear_mac_filters() - Clear all unicast and/or multicast MAC filters
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @unicast: Set to '1' to clear unicast addresses
- * @multicast: Set to '1' to clear multicast addresses
- *
- * The primary MAC address is not cleared by this operation.
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_clear_mac_filters(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int unicast,
- int multicast)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_clear_mac_filters *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_CLR_MAC_FILTERS,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_clear_mac_filters *)cmd.params;
- dpni_set_field(cmd_params->flags, UNICAST_FILTERS, unicast);
- dpni_set_field(cmd_params->flags, MULTICAST_FILTERS, multicast);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_set_rx_tc_dist() - Set Rx traffic class distribution configuration
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @tc_id: Traffic class selection (0-7)
- * @cfg: Traffic class distribution configuration
- *
- * warning: if 'dist_mode != DPNI_DIST_MODE_NONE', call dpni_prepare_key_cfg()
- * first to prepare the key_cfg_iova parameter
- *
- * Return: '0' on Success; error code otherwise.
- */
-int dpni_set_rx_tc_dist(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 tc_id,
- const struct dpni_rx_tc_dist_cfg *cfg)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_set_rx_tc_dist *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_RX_TC_DIST,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_set_rx_tc_dist *)cmd.params;
- cmd_params->dist_size = cpu_to_le16(cfg->dist_size);
- cmd_params->tc_id = tc_id;
- dpni_set_field(cmd_params->flags, DIST_MODE, cfg->dist_mode);
- dpni_set_field(cmd_params->flags, MISS_ACTION, cfg->fs_cfg.miss_action);
- cmd_params->default_flow_id = cpu_to_le16(cfg->fs_cfg.default_flow_id);
- cmd_params->key_cfg_iova = cpu_to_le64(cfg->key_cfg_iova);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_set_queue() - Set queue parameters
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @qtype: Type of queue - all queue types are supported, although
- * the command is ignored for Tx
- * @tc: Traffic class, in range 0 to NUM_TCS - 1
- * @index: Selects the specific queue out of the set allocated for the
- * same TC. Value must be in range 0 to NUM_QUEUES - 1
- * @options: A combination of DPNI_QUEUE_OPT_ values that control what
- * configuration options are set on the queue
- * @queue: Queue structure
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_set_queue(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- enum dpni_queue_type qtype,
- u8 tc,
- u8 index,
- u8 options,
- const struct dpni_queue *queue)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_set_queue *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_QUEUE,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_set_queue *)cmd.params;
- cmd_params->qtype = qtype;
- cmd_params->tc = tc;
- cmd_params->index = index;
- cmd_params->options = options;
- cmd_params->dest_id = cpu_to_le32(queue->destination.id);
- cmd_params->dest_prio = queue->destination.priority;
- dpni_set_field(cmd_params->flags, DEST_TYPE, queue->destination.type);
- dpni_set_field(cmd_params->flags, STASH_CTRL, queue->flc.stash_control);
- dpni_set_field(cmd_params->flags, HOLD_ACTIVE,
- queue->destination.hold_active);
- cmd_params->flc = cpu_to_le64(queue->flc.value);
- cmd_params->user_context = cpu_to_le64(queue->user_context);
-
- /* send command to mc */
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_get_queue() - Get queue parameters
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @qtype: Type of queue - all queue types are supported
- * @tc: Traffic class, in range 0 to NUM_TCS - 1
- * @index: Selects the specific queue out of the set allocated for the
- * same TC. Value must be in range 0 to NUM_QUEUES - 1
- * @queue: Queue configuration structure
- * @qid: Queue identification
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_get_queue(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- enum dpni_queue_type qtype,
- u8 tc,
- u8 index,
- struct dpni_queue *queue,
- struct dpni_queue_id *qid)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_get_queue *cmd_params;
- struct dpni_rsp_get_queue *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_QUEUE,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_get_queue *)cmd.params;
- cmd_params->qtype = qtype;
- cmd_params->tc = tc;
- cmd_params->index = index;
-
- /* send command to mc */
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpni_rsp_get_queue *)cmd.params;
- queue->destination.id = le32_to_cpu(rsp_params->dest_id);
- queue->destination.priority = rsp_params->dest_prio;
- queue->destination.type = dpni_get_field(rsp_params->flags,
- DEST_TYPE);
- queue->flc.stash_control = dpni_get_field(rsp_params->flags,
- STASH_CTRL);
- queue->destination.hold_active = dpni_get_field(rsp_params->flags,
- HOLD_ACTIVE);
- queue->flc.value = le64_to_cpu(rsp_params->flc);
- queue->user_context = le64_to_cpu(rsp_params->user_context);
- qid->fqid = le32_to_cpu(rsp_params->fqid);
- qid->qdbin = le16_to_cpu(rsp_params->qdbin);
-
- return 0;
-}
-
-/**
- * dpni_get_statistics() - Get DPNI statistics
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @page: Selects the statistics page to retrieve, see
- * DPNI_GET_STATISTICS output. Pages are numbered 0 to 2.
- * @stat: Structure containing the statistics
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_get_statistics(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 page,
- union dpni_statistics *stat)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_get_statistics *cmd_params;
- struct dpni_rsp_get_statistics *rsp_params;
- int i, err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_STATISTICS,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_get_statistics *)cmd.params;
- cmd_params->page_number = page;
-
- /* send command to mc */
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpni_rsp_get_statistics *)cmd.params;
- for (i = 0; i < DPNI_STATISTICS_CNT; i++)
- stat->raw.counter[i] = le64_to_cpu(rsp_params->counter[i]);
-
- return 0;
-}
-
-/**
- * dpni_set_taildrop() - Set taildrop per queue or TC
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @cg_point: Congestion point
- * @q_type: Queue type on which the taildrop is configured.
- * Only Rx queues are supported for now
- * @tc: Traffic class to apply this taildrop to
- * @q_index: Index of the queue if the DPNI supports multiple queues for
- * traffic distribution. Ignored if CONGESTION_POINT is not 0.
- * @taildrop: Taildrop structure
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_set_taildrop(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- enum dpni_congestion_point cg_point,
- enum dpni_queue_type qtype,
- u8 tc,
- u8 index,
- struct dpni_taildrop *taildrop)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_set_taildrop *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_TAILDROP,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_set_taildrop *)cmd.params;
- cmd_params->congestion_point = cg_point;
- cmd_params->qtype = qtype;
- cmd_params->tc = tc;
- cmd_params->index = index;
- dpni_set_field(cmd_params->enable, ENABLE, taildrop->enable);
- cmd_params->units = taildrop->units;
- cmd_params->threshold = cpu_to_le32(taildrop->threshold);
-
- /* send command to mc */
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpni_get_taildrop() - Get taildrop information
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPNI object
- * @cg_point: Congestion point
- * @q_type: Queue type on which the taildrop is configured.
- * Only Rx queues are supported for now
- * @tc: Traffic class to apply this taildrop to
- * @q_index: Index of the queue if the DPNI supports multiple queues for
- * traffic distribution. Ignored if CONGESTION_POINT is not 0.
- * @taildrop: Taildrop structure
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_get_taildrop(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- enum dpni_congestion_point cg_point,
- enum dpni_queue_type qtype,
- u8 tc,
- u8 index,
- struct dpni_taildrop *taildrop)
-{
- struct fsl_mc_command cmd = { 0 };
- struct dpni_cmd_get_taildrop *cmd_params;
- struct dpni_rsp_get_taildrop *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_TAILDROP,
- cmd_flags,
- token);
- cmd_params = (struct dpni_cmd_get_taildrop *)cmd.params;
- cmd_params->congestion_point = cg_point;
- cmd_params->qtype = qtype;
- cmd_params->tc = tc;
- cmd_params->index = index;
-
- /* send command to mc */
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpni_rsp_get_taildrop *)cmd.params;
- taildrop->enable = dpni_get_field(rsp_params->enable, ENABLE);
- taildrop->units = rsp_params->units;
- taildrop->threshold = le32_to_cpu(rsp_params->threshold);
-
- return 0;
-}
-
-/**
- * dpni_get_api_version() - Get Data Path Network Interface API version
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @major_ver: Major version of data path network interface API
- * @minor_ver: Minor version of data path network interface API
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpni_get_api_version(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 *major_ver,
- u16 *minor_ver)
-{
- struct dpni_rsp_get_api_version *rsp_params;
- struct fsl_mc_command cmd = { 0 };
- int err;
-
- cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_API_VERSION,
- cmd_flags, 0);
-
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- rsp_params = (struct dpni_rsp_get_api_version *)cmd.params;
- *major_ver = le16_to_cpu(rsp_params->major);
- *minor_ver = le16_to_cpu(rsp_params->minor);
-
- return 0;
-}
--- a/drivers/staging/fsl-dpaa2/ethernet/dpni.h
+++ /dev/null
@@ -1,824 +0,0 @@
-/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
-/* Copyright 2013-2016 Freescale Semiconductor Inc.
- * Copyright 2016 NXP
- */
-#ifndef __FSL_DPNI_H
-#define __FSL_DPNI_H
-
-#include "dpkg.h"
-
-struct fsl_mc_io;
-
-/**
- * Data Path Network Interface API
- * Contains initialization APIs and runtime control APIs for DPNI
- */
-
-/** General DPNI macros */
-
-/**
- * Maximum number of traffic classes
- */
-#define DPNI_MAX_TC 8
-/**
- * Maximum number of buffer pools per DPNI
- */
-#define DPNI_MAX_DPBP 8
-
-/**
- * All traffic classes considered; see dpni_set_queue()
- */
-#define DPNI_ALL_TCS (u8)(-1)
-/**
- * All flows within traffic class considered; see dpni_set_queue()
- */
-#define DPNI_ALL_TC_FLOWS (u16)(-1)
-/**
- * Generate new flow ID; see dpni_set_queue()
- */
-#define DPNI_NEW_FLOW_ID (u16)(-1)
-
-/**
- * Tx traffic is always released to a buffer pool on transmit, there are no
- * resources allocated to have the frames confirmed back to the source after
- * transmission.
- */
-#define DPNI_OPT_TX_FRM_RELEASE 0x000001
-/**
- * Disables support for MAC address filtering for addresses other than primary
- * MAC address. This affects both unicast and multicast. Promiscuous mode can
- * still be enabled/disabled for both unicast and multicast. If promiscuous mode
- * is disabled, only traffic matching the primary MAC address will be accepted.
- */
-#define DPNI_OPT_NO_MAC_FILTER 0x000002
-/**
- * Allocate policers for this DPNI. They can be used to rate-limit traffic per
- * traffic class (TC) basis.
- */
-#define DPNI_OPT_HAS_POLICING 0x000004
-/**
- * Congestion can be managed in several ways, allowing the buffer pool to
- * deplete on ingress, taildrop on each queue or use congestion groups for sets
- * of queues. If set, it configures a single congestion groups across all TCs.
- * If reset, a congestion group is allocated for each TC. Only relevant if the
- * DPNI has multiple traffic classes.
- */
-#define DPNI_OPT_SHARED_CONGESTION 0x000008
-/**
- * Enables TCAM for Flow Steering and QoS look-ups. If not specified, all
- * look-ups are exact match. Note that TCAM is not available on LS1088 and its
- * variants. Setting this bit on these SoCs will trigger an error.
- */
-#define DPNI_OPT_HAS_KEY_MASKING 0x000010
-/**
- * Disables the flow steering table.
- */
-#define DPNI_OPT_NO_FS 0x000020
-
-int dpni_open(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- int dpni_id,
- u16 *token);
-
-int dpni_close(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token);
-
-/**
- * struct dpni_pools_cfg - Structure representing buffer pools configuration
- * @num_dpbp: Number of DPBPs
- * @pools: Array of buffer pools parameters; The number of valid entries
- * must match 'num_dpbp' value
- * @pools.dpbp_id: DPBP object ID
- * @pools.buffer_size: Buffer size
- * @pools.backup_pool: Backup pool
- */
-struct dpni_pools_cfg {
- u8 num_dpbp;
- struct {
- int dpbp_id;
- u16 buffer_size;
- int backup_pool;
- } pools[DPNI_MAX_DPBP];
-};
-
-int dpni_set_pools(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- const struct dpni_pools_cfg *cfg);
-
-int dpni_enable(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token);
-
-int dpni_disable(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token);
-
-int dpni_is_enabled(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int *en);
-
-int dpni_reset(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token);
-
-/**
- * DPNI IRQ Index and Events
- */
-
-/**
- * IRQ index
- */
-#define DPNI_IRQ_INDEX 0
-/**
- * IRQ event - indicates a change in link state
- */
-#define DPNI_IRQ_EVENT_LINK_CHANGED 0x00000001
-
-int dpni_set_irq_enable(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u8 en);
-
-int dpni_get_irq_enable(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u8 *en);
-
-int dpni_set_irq_mask(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 mask);
-
-int dpni_get_irq_mask(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 *mask);
-
-int dpni_get_irq_status(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 *status);
-
-int dpni_clear_irq_status(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 status);
-
-/**
- * struct dpni_attr - Structure representing DPNI attributes
- * @options: Any combination of the following options:
- * DPNI_OPT_TX_FRM_RELEASE
- * DPNI_OPT_NO_MAC_FILTER
- * DPNI_OPT_HAS_POLICING
- * DPNI_OPT_SHARED_CONGESTION
- * DPNI_OPT_HAS_KEY_MASKING
- * DPNI_OPT_NO_FS
- * @num_queues: Number of Tx and Rx queues used for traffic distribution.
- * @num_tcs: Number of traffic classes (TCs), reserved for the DPNI.
- * @mac_filter_entries: Number of entries in the MAC address filtering table.
- * @vlan_filter_entries: Number of entries in the VLAN address filtering table.
- * @qos_entries: Number of entries in the QoS classification table.
- * @fs_entries: Number of entries in the flow steering table.
- * @qos_key_size: Size, in bytes, of the QoS look-up key. Defining a key larger
- * than this when adding QoS entries will result in an error.
- * @fs_key_size: Size, in bytes, of the flow steering look-up key. Defining a
- * key larger than this when composing the hash + FS key will
- * result in an error.
- * @wriop_version: Version of WRIOP HW block. The 3 version values are stored
- * on 6, 5, 5 bits respectively.
- */
-struct dpni_attr {
- u32 options;
- u8 num_queues;
- u8 num_tcs;
- u8 mac_filter_entries;
- u8 vlan_filter_entries;
- u8 qos_entries;
- u16 fs_entries;
- u8 qos_key_size;
- u8 fs_key_size;
- u16 wriop_version;
-};
-
-int dpni_get_attributes(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- struct dpni_attr *attr);
-
-/**
- * DPNI errors
- */
-
-/**
- * Extract out of frame header error
- */
-#define DPNI_ERROR_EOFHE 0x00020000
-/**
- * Frame length error
- */
-#define DPNI_ERROR_FLE 0x00002000
-/**
- * Frame physical error
- */
-#define DPNI_ERROR_FPE 0x00001000
-/**
- * Parsing header error
- */
-#define DPNI_ERROR_PHE 0x00000020
-/**
- * Parser L3 checksum error
- */
-#define DPNI_ERROR_L3CE 0x00000004
-/**
- * Parser L3 checksum error
- */
-#define DPNI_ERROR_L4CE 0x00000001
-
-/**
- * enum dpni_error_action - Defines DPNI behavior for errors
- * @DPNI_ERROR_ACTION_DISCARD: Discard the frame
- * @DPNI_ERROR_ACTION_CONTINUE: Continue with the normal flow
- * @DPNI_ERROR_ACTION_SEND_TO_ERROR_QUEUE: Send the frame to the error queue
- */
-enum dpni_error_action {
- DPNI_ERROR_ACTION_DISCARD = 0,
- DPNI_ERROR_ACTION_CONTINUE = 1,
- DPNI_ERROR_ACTION_SEND_TO_ERROR_QUEUE = 2
-};
-
-/**
- * struct dpni_error_cfg - Structure representing DPNI errors treatment
- * @errors: Errors mask; use 'DPNI_ERROR__<X>
- * @error_action: The desired action for the errors mask
- * @set_frame_annotation: Set to '1' to mark the errors in frame annotation
- * status (FAS); relevant only for the non-discard action
- */
-struct dpni_error_cfg {
- u32 errors;
- enum dpni_error_action error_action;
- int set_frame_annotation;
-};
-
-int dpni_set_errors_behavior(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- struct dpni_error_cfg *cfg);
-
-/**
- * DPNI buffer layout modification options
- */
-
-/**
- * Select to modify the time-stamp setting
- */
-#define DPNI_BUF_LAYOUT_OPT_TIMESTAMP 0x00000001
-/**
- * Select to modify the parser-result setting; not applicable for Tx
- */
-#define DPNI_BUF_LAYOUT_OPT_PARSER_RESULT 0x00000002
-/**
- * Select to modify the frame-status setting
- */
-#define DPNI_BUF_LAYOUT_OPT_FRAME_STATUS 0x00000004
-/**
- * Select to modify the private-data-size setting
- */
-#define DPNI_BUF_LAYOUT_OPT_PRIVATE_DATA_SIZE 0x00000008
-/**
- * Select to modify the data-alignment setting
- */
-#define DPNI_BUF_LAYOUT_OPT_DATA_ALIGN 0x00000010
-/**
- * Select to modify the data-head-room setting
- */
-#define DPNI_BUF_LAYOUT_OPT_DATA_HEAD_ROOM 0x00000020
-/**
- * Select to modify the data-tail-room setting
- */
-#define DPNI_BUF_LAYOUT_OPT_DATA_TAIL_ROOM 0x00000040
-
-/**
- * struct dpni_buffer_layout - Structure representing DPNI buffer layout
- * @options: Flags representing the suggested modifications to the buffer
- * layout; Use any combination of 'DPNI_BUF_LAYOUT_OPT_<X>' flags
- * @pass_timestamp: Pass timestamp value
- * @pass_parser_result: Pass parser results
- * @pass_frame_status: Pass frame status
- * @private_data_size: Size kept for private data (in bytes)
- * @data_align: Data alignment
- * @data_head_room: Data head room
- * @data_tail_room: Data tail room
- */
-struct dpni_buffer_layout {
- u32 options;
- int pass_timestamp;
- int pass_parser_result;
- int pass_frame_status;
- u16 private_data_size;
- u16 data_align;
- u16 data_head_room;
- u16 data_tail_room;
-};
-
-/**
- * enum dpni_queue_type - Identifies a type of queue targeted by the command
- * @DPNI_QUEUE_RX: Rx queue
- * @DPNI_QUEUE_TX: Tx queue
- * @DPNI_QUEUE_TX_CONFIRM: Tx confirmation queue
- * @DPNI_QUEUE_RX_ERR: Rx error queue
- */enum dpni_queue_type {
- DPNI_QUEUE_RX,
- DPNI_QUEUE_TX,
- DPNI_QUEUE_TX_CONFIRM,
- DPNI_QUEUE_RX_ERR,
-};
-
-int dpni_get_buffer_layout(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- enum dpni_queue_type qtype,
- struct dpni_buffer_layout *layout);
-
-int dpni_set_buffer_layout(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- enum dpni_queue_type qtype,
- const struct dpni_buffer_layout *layout);
-
-/**
- * enum dpni_offload - Identifies a type of offload targeted by the command
- * @DPNI_OFF_RX_L3_CSUM: Rx L3 checksum validation
- * @DPNI_OFF_RX_L4_CSUM: Rx L4 checksum validation
- * @DPNI_OFF_TX_L3_CSUM: Tx L3 checksum generation
- * @DPNI_OFF_TX_L4_CSUM: Tx L4 checksum generation
- */
-enum dpni_offload {
- DPNI_OFF_RX_L3_CSUM,
- DPNI_OFF_RX_L4_CSUM,
- DPNI_OFF_TX_L3_CSUM,
- DPNI_OFF_TX_L4_CSUM,
-};
-
-int dpni_set_offload(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- enum dpni_offload type,
- u32 config);
-
-int dpni_get_offload(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- enum dpni_offload type,
- u32 *config);
-
-int dpni_get_qdid(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- enum dpni_queue_type qtype,
- u16 *qdid);
-
-int dpni_get_tx_data_offset(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u16 *data_offset);
-
-#define DPNI_STATISTICS_CNT 7
-
-/**
- * union dpni_statistics - Union describing the DPNI statistics
- * @page_0: Page_0 statistics structure
- * @page_0.ingress_all_frames: Ingress frame count
- * @page_0.ingress_all_bytes: Ingress byte count
- * @page_0.ingress_multicast_frames: Ingress multicast frame count
- * @page_0.ingress_multicast_bytes: Ingress multicast byte count
- * @page_0.ingress_broadcast_frames: Ingress broadcast frame count
- * @page_0.ingress_broadcast_bytes: Ingress broadcast byte count
- * @page_1: Page_1 statistics structure
- * @page_1.egress_all_frames: Egress frame count
- * @page_1.egress_all_bytes: Egress byte count
- * @page_1.egress_multicast_frames: Egress multicast frame count
- * @page_1.egress_multicast_bytes: Egress multicast byte count
- * @page_1.egress_broadcast_frames: Egress broadcast frame count
- * @page_1.egress_broadcast_bytes: Egress broadcast byte count
- * @page_2: Page_2 statistics structure
- * @page_2.ingress_filtered_frames: Ingress filtered frame count
- * @page_2.ingress_discarded_frames: Ingress discarded frame count
- * @page_2.ingress_nobuffer_discards: Ingress discarded frame count due to
- * lack of buffers
- * @page_2.egress_discarded_frames: Egress discarded frame count
- * @page_2.egress_confirmed_frames: Egress confirmed frame count
- * @raw: raw statistics structure, used to index counters
- */
-union dpni_statistics {
- struct {
- u64 ingress_all_frames;
- u64 ingress_all_bytes;
- u64 ingress_multicast_frames;
- u64 ingress_multicast_bytes;
- u64 ingress_broadcast_frames;
- u64 ingress_broadcast_bytes;
- } page_0;
- struct {
- u64 egress_all_frames;
- u64 egress_all_bytes;
- u64 egress_multicast_frames;
- u64 egress_multicast_bytes;
- u64 egress_broadcast_frames;
- u64 egress_broadcast_bytes;
- } page_1;
- struct {
- u64 ingress_filtered_frames;
- u64 ingress_discarded_frames;
- u64 ingress_nobuffer_discards;
- u64 egress_discarded_frames;
- u64 egress_confirmed_frames;
- } page_2;
- struct {
- u64 counter[DPNI_STATISTICS_CNT];
- } raw;
-};
-
-int dpni_get_statistics(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 page,
- union dpni_statistics *stat);
-
-/**
- * Enable auto-negotiation
- */
-#define DPNI_LINK_OPT_AUTONEG 0x0000000000000001ULL
-/**
- * Enable half-duplex mode
- */
-#define DPNI_LINK_OPT_HALF_DUPLEX 0x0000000000000002ULL
-/**
- * Enable pause frames
- */
-#define DPNI_LINK_OPT_PAUSE 0x0000000000000004ULL
-/**
- * Enable a-symmetric pause frames
- */
-#define DPNI_LINK_OPT_ASYM_PAUSE 0x0000000000000008ULL
-
-/**
- * struct - Structure representing DPNI link configuration
- * @rate: Rate
- * @options: Mask of available options; use 'DPNI_LINK_OPT_<X>' values
- */
-struct dpni_link_cfg {
- u32 rate;
- u64 options;
-};
-
-int dpni_set_link_cfg(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- const struct dpni_link_cfg *cfg);
-
-/**
- * struct dpni_link_state - Structure representing DPNI link state
- * @rate: Rate
- * @options: Mask of available options; use 'DPNI_LINK_OPT_<X>' values
- * @up: Link state; '0' for down, '1' for up
- */
-struct dpni_link_state {
- u32 rate;
- u64 options;
- int up;
-};
-
-int dpni_get_link_state(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- struct dpni_link_state *state);
-
-int dpni_set_max_frame_length(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u16 max_frame_length);
-
-int dpni_get_max_frame_length(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u16 *max_frame_length);
-
-int dpni_set_multicast_promisc(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int en);
-
-int dpni_get_multicast_promisc(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int *en);
-
-int dpni_set_unicast_promisc(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int en);
-
-int dpni_get_unicast_promisc(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int *en);
-
-int dpni_set_primary_mac_addr(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- const u8 mac_addr[6]);
-
-int dpni_get_primary_mac_addr(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 mac_addr[6]);
-
-int dpni_get_port_mac_addr(struct fsl_mc_io *mc_io,
- u32 cm_flags,
- u16 token,
- u8 mac_addr[6]);
-
-int dpni_add_mac_addr(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- const u8 mac_addr[6]);
-
-int dpni_remove_mac_addr(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- const u8 mac_addr[6]);
-
-int dpni_clear_mac_filters(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int unicast,
- int multicast);
-
-/**
- * enum dpni_dist_mode - DPNI distribution mode
- * @DPNI_DIST_MODE_NONE: No distribution
- * @DPNI_DIST_MODE_HASH: Use hash distribution; only relevant if
- * the 'DPNI_OPT_DIST_HASH' option was set at DPNI creation
- * @DPNI_DIST_MODE_FS: Use explicit flow steering; only relevant if
- * the 'DPNI_OPT_DIST_FS' option was set at DPNI creation
- */
-enum dpni_dist_mode {
- DPNI_DIST_MODE_NONE = 0,
- DPNI_DIST_MODE_HASH = 1,
- DPNI_DIST_MODE_FS = 2
-};
-
-/**
- * enum dpni_fs_miss_action - DPNI Flow Steering miss action
- * @DPNI_FS_MISS_DROP: In case of no-match, drop the frame
- * @DPNI_FS_MISS_EXPLICIT_FLOWID: In case of no-match, use explicit flow-id
- * @DPNI_FS_MISS_HASH: In case of no-match, distribute using hash
- */
-enum dpni_fs_miss_action {
- DPNI_FS_MISS_DROP = 0,
- DPNI_FS_MISS_EXPLICIT_FLOWID = 1,
- DPNI_FS_MISS_HASH = 2
-};
-
-/**
- * struct dpni_fs_tbl_cfg - Flow Steering table configuration
- * @miss_action: Miss action selection
- * @default_flow_id: Used when 'miss_action = DPNI_FS_MISS_EXPLICIT_FLOWID'
- */
-struct dpni_fs_tbl_cfg {
- enum dpni_fs_miss_action miss_action;
- u16 default_flow_id;
-};
-
-int dpni_prepare_key_cfg(const struct dpkg_profile_cfg *cfg,
- u8 *key_cfg_buf);
-
-/**
- * struct dpni_rx_tc_dist_cfg - Rx traffic class distribution configuration
- * @dist_size: Set the distribution size;
- * supported values: 1,2,3,4,6,7,8,12,14,16,24,28,32,48,56,64,96,
- * 112,128,192,224,256,384,448,512,768,896,1024
- * @dist_mode: Distribution mode
- * @key_cfg_iova: I/O virtual address of 256 bytes DMA-able memory filled with
- * the extractions to be used for the distribution key by calling
- * dpni_prepare_key_cfg() relevant only when
- * 'dist_mode != DPNI_DIST_MODE_NONE', otherwise it can be '0'
- * @fs_cfg: Flow Steering table configuration; only relevant if
- * 'dist_mode = DPNI_DIST_MODE_FS'
- */
-struct dpni_rx_tc_dist_cfg {
- u16 dist_size;
- enum dpni_dist_mode dist_mode;
- u64 key_cfg_iova;
- struct dpni_fs_tbl_cfg fs_cfg;
-};
-
-int dpni_set_rx_tc_dist(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 tc_id,
- const struct dpni_rx_tc_dist_cfg *cfg);
-
-/**
- * enum dpni_dest - DPNI destination types
- * @DPNI_DEST_NONE: Unassigned destination; The queue is set in parked mode and
- * does not generate FQDAN notifications; user is expected to
- * dequeue from the queue based on polling or other user-defined
- * method
- * @DPNI_DEST_DPIO: The queue is set in schedule mode and generates FQDAN
- * notifications to the specified DPIO; user is expected to dequeue
- * from the queue only after notification is received
- * @DPNI_DEST_DPCON: The queue is set in schedule mode and does not generate
- * FQDAN notifications, but is connected to the specified DPCON
- * object; user is expected to dequeue from the DPCON channel
- */
-enum dpni_dest {
- DPNI_DEST_NONE = 0,
- DPNI_DEST_DPIO = 1,
- DPNI_DEST_DPCON = 2
-};
-
-/**
- * struct dpni_queue - Queue structure
- * @destination - Destination structure
- * @destination.id: ID of the destination, only relevant if DEST_TYPE is > 0.
- * Identifies either a DPIO or a DPCON object.
- * Not relevant for Tx queues.
- * @destination.type: May be one of the following:
- * 0 - No destination, queue can be manually
- * queried, but will not push traffic or
- * notifications to a DPIO;
- * 1 - The destination is a DPIO. When traffic
- * becomes available in the queue a FQDAN
- * (FQ data available notification) will be
- * generated to selected DPIO;
- * 2 - The destination is a DPCON. The queue is
- * associated with a DPCON object for the
- * purpose of scheduling between multiple
- * queues. The DPCON may be independently
- * configured to generate notifications.
- * Not relevant for Tx queues.
- * @destination.hold_active: Hold active, maintains a queue scheduled for longer
- * in a DPIO during dequeue to reduce spread of traffic.
- * Only relevant if queues are
- * not affined to a single DPIO.
- * @user_context: User data, presented to the user along with any frames
- * from this queue. Not relevant for Tx queues.
- * @flc: FD FLow Context structure
- * @flc.value: Default FLC value for traffic dequeued from
- * this queue. Please check description of FD
- * structure for more information.
- * Note that FLC values set using dpni_add_fs_entry,
- * if any, take precedence over values per queue.
- * @flc.stash_control: Boolean, indicates whether the 6 lowest
- * - significant bits are used for stash control.
- * significant bits are used for stash control. If set, the 6
- * least significant bits in value are interpreted as follows:
- * - bits 0-1: indicates the number of 64 byte units of context
- * that are stashed. FLC value is interpreted as a memory address
- * in this case, excluding the 6 LS bits.
- * - bits 2-3: indicates the number of 64 byte units of frame
- * annotation to be stashed. Annotation is placed at FD[ADDR].
- * - bits 4-5: indicates the number of 64 byte units of frame
- * data to be stashed. Frame data is placed at FD[ADDR] +
- * FD[OFFSET].
- * For more details check the Frame Descriptor section in the
- * hardware documentation.
- */
-struct dpni_queue {
- struct {
- u16 id;
- enum dpni_dest type;
- char hold_active;
- u8 priority;
- } destination;
- u64 user_context;
- struct {
- u64 value;
- char stash_control;
- } flc;
-};
-
-/**
- * struct dpni_queue_id - Queue identification, used for enqueue commands
- * or queue control
- * @fqid: FQID used for enqueueing to and/or configuration of this specific FQ
- * @qdbin: Queueing bin, used to enqueue using QDID, DQBIN, QPRI. Only relevant
- * for Tx queues.
- */
-struct dpni_queue_id {
- u32 fqid;
- u16 qdbin;
-};
-
-/**
- * Set User Context
- */
-#define DPNI_QUEUE_OPT_USER_CTX 0x00000001
-#define DPNI_QUEUE_OPT_DEST 0x00000002
-#define DPNI_QUEUE_OPT_FLC 0x00000004
-#define DPNI_QUEUE_OPT_HOLD_ACTIVE 0x00000008
-
-int dpni_set_queue(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- enum dpni_queue_type qtype,
- u8 tc,
- u8 index,
- u8 options,
- const struct dpni_queue *queue);
-
-int dpni_get_queue(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- enum dpni_queue_type qtype,
- u8 tc,
- u8 index,
- struct dpni_queue *queue,
- struct dpni_queue_id *qid);
-
-/**
- * enum dpni_congestion_unit - DPNI congestion units
- * @DPNI_CONGESTION_UNIT_BYTES: bytes units
- * @DPNI_CONGESTION_UNIT_FRAMES: frames units
- */
-enum dpni_congestion_unit {
- DPNI_CONGESTION_UNIT_BYTES = 0,
- DPNI_CONGESTION_UNIT_FRAMES
-};
-
-/**
- * enum dpni_congestion_point - Structure representing congestion point
- * @DPNI_CP_QUEUE: Set taildrop per queue, identified by QUEUE_TYPE, TC and
- * QUEUE_INDEX
- * @DPNI_CP_GROUP: Set taildrop per queue group. Depending on options used to
- * define the DPNI this can be either per TC (default) or per
- * interface (DPNI_OPT_SHARED_CONGESTION set at DPNI create).
- * QUEUE_INDEX is ignored if this type is used.
- */
-enum dpni_congestion_point {
- DPNI_CP_QUEUE,
- DPNI_CP_GROUP,
-};
-
-/**
- * struct dpni_taildrop - Structure representing the taildrop
- * @enable: Indicates whether the taildrop is active or not.
- * @units: Indicates the unit of THRESHOLD. Queue taildrop only supports
- * byte units, this field is ignored and assumed = 0 if
- * CONGESTION_POINT is 0.
- * @threshold: Threshold value, in units identified by UNITS field. Value 0
- * cannot be used as a valid taildrop threshold, THRESHOLD must
- * be > 0 if the taildrop is enabled.
- */
-struct dpni_taildrop {
- char enable;
- enum dpni_congestion_unit units;
- u32 threshold;
-};
-
-int dpni_set_taildrop(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- enum dpni_congestion_point cg_point,
- enum dpni_queue_type q_type,
- u8 tc,
- u8 q_index,
- struct dpni_taildrop *taildrop);
-
-int dpni_get_taildrop(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- enum dpni_congestion_point cg_point,
- enum dpni_queue_type q_type,
- u8 tc,
- u8 q_index,
- struct dpni_taildrop *taildrop);
-
-/**
- * struct dpni_rule_cfg - Rule configuration for table lookup
- * @key_iova: I/O virtual address of the key (must be in DMA-able memory)
- * @mask_iova: I/O virtual address of the mask (must be in DMA-able memory)
- * @key_size: key and mask size (in bytes)
- */
-struct dpni_rule_cfg {
- u64 key_iova;
- u64 mask_iova;
- u8 key_size;
-};
-
-int dpni_get_api_version(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 *major_ver,
- u16 *minor_ver);
-
-#endif /* __FSL_DPNI_H */
--- a/drivers/staging/fsl-dpaa2/ethernet/ethernet-driver.rst
+++ /dev/null
@@ -1,185 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0
-.. include:: <isonum.txt>
-
-===============================
-DPAA2 Ethernet driver
-===============================
-
-:Copyright: |copy| 2017-2018 NXP
-
-This file provides documentation for the Freescale DPAA2 Ethernet driver.
-
-Supported Platforms
-===================
-This driver provides networking support for Freescale DPAA2 SoCs, e.g.
-LS2080A, LS2088A, LS1088A.
-
-
-Architecture Overview
-=====================
-Unlike regular NICs, in the DPAA2 architecture there is no single hardware block
-representing network interfaces; instead, several separate hardware resources
-concur to provide the networking functionality:
-
-- network interfaces
-- queues, channels
-- buffer pools
-- MAC/PHY
-
-All hardware resources are allocated and configured through the Management
-Complex (MC) portals. MC abstracts most of these resources as DPAA2 objects
-and exposes ABIs through which they can be configured and controlled. A few
-hardware resources, like queues, do not have a corresponding MC object and
-are treated as internal resources of other objects.
-
-For a more detailed description of the DPAA2 architecture and its object
-abstractions see *Documentation/networking/dpaa2/overview.rst*.
-
-Each Linux net device is built on top of a Datapath Network Interface (DPNI)
-object and uses Buffer Pools (DPBPs), I/O Portals (DPIOs) and Concentrators
-(DPCONs).
-
-Configuration interface::
-
- -----------------------
- | DPAA2 Ethernet Driver |
- -----------------------
- . . .
- . . .
- . . . . . . . . . . . .
- . . .
- . . .
- ---------- ---------- -----------
- | DPBP API | | DPNI API | | DPCON API |
- ---------- ---------- -----------
- . . . software
- ======= . ========== . ============ . ===================
- . . . hardware
- ------------------------------------------
- | MC hardware portals |
- ------------------------------------------
- . . .
- . . .
- ------ ------ -------
- | DPBP | | DPNI | | DPCON |
- ------ ------ -------
-
-The DPNIs are network interfaces without a direct one-on-one mapping to PHYs.
-DPBPs represent hardware buffer pools. Packet I/O is performed in the context
-of DPCON objects, using DPIO portals for managing and communicating with the
-hardware resources.
-
-Datapath (I/O) interface::
-
- -----------------------------------------------
- | DPAA2 Ethernet Driver |
- -----------------------------------------------
- | ^ ^ | |
- | | | | |
- enqueue| dequeue| data | dequeue| seed |
- (Tx) | (Rx, TxC)| avail.| request| buffers|
- | | notify| | |
- | | | | |
- V | | V V
- -----------------------------------------------
- | DPIO Driver |
- -----------------------------------------------
- | | | | | software
- | | | | | ================
- | | | | | hardware
- -----------------------------------------------
- | I/O hardware portals |
- -----------------------------------------------
- | ^ ^ | |
- | | | | |
- | | | V |
- V | ================ V
- ---------------------- | -------------
- queues ---------------------- | | Buffer pool |
- ---------------------- | -------------
- =======================
- Channel
-
-Datapath I/O (DPIO) portals provide enqueue and dequeue services, data
-availability notifications and buffer pool management. DPIOs are shared between
-all DPAA2 objects (and implicitly all DPAA2 kernel drivers) that work with data
-frames, but must be affine to the CPUs for the purpose of traffic distribution.
-
-Frames are transmitted and received through hardware frame queues, which can be
-grouped in channels for the purpose of hardware scheduling. The Ethernet driver
-enqueues TX frames on egress queues and after transmission is complete a TX
-confirmation frame is sent back to the CPU.
-
-When frames are available on ingress queues, a data availability notification
-is sent to the CPU; notifications are raised per channel, so even if multiple
-queues in the same channel have available frames, only one notification is sent.
-After a channel fires a notification, is must be explicitly rearmed.
-
-Each network interface can have multiple Rx, Tx and confirmation queues affined
-to CPUs, and one channel (DPCON) for each CPU that services at least one queue.
-DPCONs are used to distribute ingress traffic to different CPUs via the cores'
-affine DPIOs.
-
-The role of hardware buffer pools is storage of ingress frame data. Each network
-interface has a privately owned buffer pool which it seeds with kernel allocated
-buffers.
-
-
-DPNIs are decoupled from PHYs; a DPNI can be connected to a PHY through a DPMAC
-object or to another DPNI through an internal link, but the connection is
-managed by MC and completely transparent to the Ethernet driver.
-
-::
-
- --------- --------- ---------
- | eth if1 | | eth if2 | | eth ifn |
- --------- --------- ---------
- . . .
- . . .
- . . .
- ---------------------------
- | DPAA2 Ethernet Driver |
- ---------------------------
- . . .
- . . .
- . . .
- ------ ------ ------ -------
- | DPNI | | DPNI | | DPNI | | DPMAC |----+
- ------ ------ ------ ------- |
- | | | | |
- | | | | -----
- =========== ================== | PHY |
- -----
-
-Creating a Network Interface
-============================
-A net device is created for each DPNI object probed on the MC bus. Each DPNI has
-a number of properties which determine the network interface configuration
-options and associated hardware resources.
-
-DPNI objects (and the other DPAA2 objects needed for a network interface) can be
-added to a container on the MC bus in one of two ways: statically, through a
-Datapath Layout Binary file (DPL) that is parsed by MC at boot time; or created
-dynamically at runtime, via the DPAA2 objects APIs.
-
-
-Features & Offloads
-===================
-Hardware checksum offloading is supported for TCP and UDP over IPv4/6 frames.
-The checksum offloads can be independently configured on RX and TX through
-ethtool.
-
-Hardware offload of unicast and multicast MAC filtering is supported on the
-ingress path and permanently enabled.
-
-Scatter-gather frames are supported on both RX and TX paths. On TX, SG support
-is configurable via ethtool; on RX it is always enabled.
-
-The DPAA2 hardware can process jumbo Ethernet frames of up to 10K bytes.
-
-The Ethernet driver defines a static flow hashing scheme that distributes
-traffic based on a 5-tuple key: src IP, dst IP, IP proto, L4 src port,
-L4 dst port. No user configuration is supported for now.
-
-Hardware specific statistics for the network interface as well as some
-non-standard driver stats can be consulted through ethtool -S option.