From: Bailey Forrest <bcf@google.com>
Date: Thu, 24 Jun 2021 11:06:18 -0700
Subject: gve: Move some static functions to a common file
Patch-mainline: v5.14-rc1
Git-commit: dbdaa6754051280d929514a1722b9d5bc7c65a61
References: bsc#1176940
These functions will be shared by the GQI and DQO variants of the GVNIC
driver as of follow-up patches in this series.
Signed-off-by: Bailey Forrest <bcf@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Catherine Sullivan <csully@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/google/gve/Makefile | 2
drivers/net/ethernet/google/gve/gve_rx.c | 42 ------------------
drivers/net/ethernet/google/gve/gve_tx.c | 21 ---------
drivers/net/ethernet/google/gve/gve_utils.c | 65 ++++++++++++++++++++++++++++
drivers/net/ethernet/google/gve/gve_utils.h | 24 ++++++++++
5 files changed, 94 insertions(+), 60 deletions(-)
create mode 100644 drivers/net/ethernet/google/gve/gve_utils.c
create mode 100644 drivers/net/ethernet/google/gve/gve_utils.h
--- a/drivers/net/ethernet/google/gve/Makefile
+++ b/drivers/net/ethernet/google/gve/Makefile
@@ -1,4 +1,4 @@
# Makefile for the Google virtual Ethernet (gve) driver
obj-$(CONFIG_GVE) += gve.o
-gve-objs := gve_main.o gve_tx.o gve_rx.o gve_ethtool.o gve_adminq.o
+gve-objs := gve_main.o gve_tx.o gve_rx.o gve_ethtool.o gve_adminq.o gve_utils.o
--- a/drivers/net/ethernet/google/gve/gve_rx.c
+++ b/drivers/net/ethernet/google/gve/gve_rx.c
@@ -1,21 +1,14 @@
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/* Google virtual Ethernet (gve) driver
*
- * Copyright (C) 2015-2019 Google, Inc.
+ * Copyright (C) 2015-2021 Google, Inc.
*/
#include "gve.h"
#include "gve_adminq.h"
+#include "gve_utils.h"
#include <linux/etherdevice.h>
-static void gve_rx_remove_from_block(struct gve_priv *priv, int queue_idx)
-{
- struct gve_notify_block *block =
- &priv->ntfy_blocks[gve_rx_idx_to_ntfy(priv, queue_idx)];
-
- block->rx = NULL;
-}
-
static void gve_rx_free_buffer(struct device *dev,
struct gve_rx_slot_page_info *page_info,
union gve_rx_data_slot *data_slot)
@@ -137,16 +130,6 @@ alloc_err:
return err;
}
-static void gve_rx_add_to_block(struct gve_priv *priv, int queue_idx)
-{
- u32 ntfy_idx = gve_rx_idx_to_ntfy(priv, queue_idx);
- struct gve_notify_block *block = &priv->ntfy_blocks[ntfy_idx];
- struct gve_rx_ring *rx = &priv->rx[queue_idx];
-
- block->rx = rx;
- rx->ntfy_id = ntfy_idx;
-}
-
static int gve_rx_alloc_ring(struct gve_priv *priv, int idx)
{
struct gve_rx_ring *rx = &priv->rx[idx];
@@ -279,27 +262,6 @@ static enum pkt_hash_types gve_rss_type(
return PKT_HASH_TYPE_L2;
}
-static struct sk_buff *gve_rx_copy(struct net_device *dev,
- struct napi_struct *napi,
- struct gve_rx_slot_page_info *page_info,
- u16 len)
-{
- struct sk_buff *skb = napi_alloc_skb(napi, len);
- void *va = page_info->page_address + GVE_RX_PAD +
- (page_info->page_offset ? PAGE_SIZE / 2 : 0);
-
- if (unlikely(!skb))
- return NULL;
-
- __skb_put(skb, len);
-
- skb_copy_to_linear_data(skb, va, len);
-
- skb->protocol = eth_type_trans(skb, dev);
-
- return skb;
-}
-
static struct sk_buff *gve_rx_add_frags(struct napi_struct *napi,
struct gve_rx_slot_page_info *page_info,
u16 len)
--- a/drivers/net/ethernet/google/gve/gve_tx.c
+++ b/drivers/net/ethernet/google/gve/gve_tx.c
@@ -1,11 +1,12 @@
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/* Google virtual Ethernet (gve) driver
*
- * Copyright (C) 2015-2019 Google, Inc.
+ * Copyright (C) 2015-2021 Google, Inc.
*/
#include "gve.h"
#include "gve_adminq.h"
+#include "gve_utils.h"
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/vmalloc.h>
@@ -131,14 +132,6 @@ static void gve_tx_free_fifo(struct gve_
atomic_add(bytes, &fifo->available);
}
-static void gve_tx_remove_from_block(struct gve_priv *priv, int queue_idx)
-{
- struct gve_notify_block *block =
- &priv->ntfy_blocks[gve_tx_idx_to_ntfy(priv, queue_idx)];
-
- block->tx = NULL;
-}
-
static int gve_clean_tx_done(struct gve_priv *priv, struct gve_tx_ring *tx,
u32 to_do, bool try_to_wake);
@@ -174,16 +167,6 @@ static void gve_tx_free_ring(struct gve_
netif_dbg(priv, drv, priv->dev, "freed tx queue %d\n", idx);
}
-static void gve_tx_add_to_block(struct gve_priv *priv, int queue_idx)
-{
- int ntfy_idx = gve_tx_idx_to_ntfy(priv, queue_idx);
- struct gve_notify_block *block = &priv->ntfy_blocks[ntfy_idx];
- struct gve_tx_ring *tx = &priv->tx[queue_idx];
-
- block->tx = tx;
- tx->ntfy_id = ntfy_idx;
-}
-
static int gve_tx_alloc_ring(struct gve_priv *priv, int idx)
{
struct gve_tx_ring *tx = &priv->tx[idx];
--- /dev/null
+++ b/drivers/net/ethernet/google/gve/gve_utils.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/* Google virtual Ethernet (gve) driver
+ *
+ * Copyright (C) 2015-2021 Google, Inc.
+ */
+
+#include "gve.h"
+#include "gve_adminq.h"
+#include "gve_utils.h"
+
+void gve_tx_remove_from_block(struct gve_priv *priv, int queue_idx)
+{
+ struct gve_notify_block *block =
+ &priv->ntfy_blocks[gve_tx_idx_to_ntfy(priv, queue_idx)];
+
+ block->tx = NULL;
+}
+
+void gve_tx_add_to_block(struct gve_priv *priv, int queue_idx)
+{
+ int ntfy_idx = gve_tx_idx_to_ntfy(priv, queue_idx);
+ struct gve_notify_block *block = &priv->ntfy_blocks[ntfy_idx];
+ struct gve_tx_ring *tx = &priv->tx[queue_idx];
+
+ block->tx = tx;
+ tx->ntfy_id = ntfy_idx;
+}
+
+void gve_rx_remove_from_block(struct gve_priv *priv, int queue_idx)
+{
+ struct gve_notify_block *block =
+ &priv->ntfy_blocks[gve_rx_idx_to_ntfy(priv, queue_idx)];
+
+ block->rx = NULL;
+}
+
+void gve_rx_add_to_block(struct gve_priv *priv, int queue_idx)
+{
+ u32 ntfy_idx = gve_rx_idx_to_ntfy(priv, queue_idx);
+ struct gve_notify_block *block = &priv->ntfy_blocks[ntfy_idx];
+ struct gve_rx_ring *rx = &priv->rx[queue_idx];
+
+ block->rx = rx;
+ rx->ntfy_id = ntfy_idx;
+}
+
+struct sk_buff *gve_rx_copy(struct net_device *dev, struct napi_struct *napi,
+ struct gve_rx_slot_page_info *page_info, u16 len)
+{
+ struct sk_buff *skb = napi_alloc_skb(napi, len);
+ void *va = page_info->page_address + GVE_RX_PAD +
+ (page_info->page_offset ? PAGE_SIZE / 2 : 0);
+
+ if (unlikely(!skb))
+ return NULL;
+
+ __skb_put(skb, len);
+
+ skb_copy_to_linear_data(skb, va, len);
+
+ skb->protocol = eth_type_trans(skb, dev);
+
+ return skb;
+}
+
--- /dev/null
+++ b/drivers/net/ethernet/google/gve/gve_utils.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT)
+ * Google virtual Ethernet (gve) driver
+ *
+ * Copyright (C) 2015-2021 Google, Inc.
+ */
+
+#ifndef _GVE_UTILS_H
+#define _GVE_UTILS_H
+
+#include <linux/etherdevice.h>
+
+#include "gve.h"
+
+void gve_tx_remove_from_block(struct gve_priv *priv, int queue_idx);
+void gve_tx_add_to_block(struct gve_priv *priv, int queue_idx);
+
+void gve_rx_remove_from_block(struct gve_priv *priv, int queue_idx);
+void gve_rx_add_to_block(struct gve_priv *priv, int queue_idx);
+
+struct sk_buff *gve_rx_copy(struct net_device *dev, struct napi_struct *napi,
+ struct gve_rx_slot_page_info *page_info, u16 len);
+
+#endif /* _GVE_UTILS_H */
+