From: Boris Pismenny <borisp@mellanox.com>
Date: Sun, 20 Aug 2017 15:13:08 +0300
Subject: {net,IB}/mlx5: Add flow steering helpers
Patch-mainline: v4.17-rc1
Git-commit: 3346c4873733a109bea29467308a754038b886a9
References: bsc#1103991 FATE#326007
Add helper functions that check if a protocol is
part of a flow steering match criteria.
Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/hw/mlx5/main.c | 7 -
include/linux/mlx5/fs_helpers.h | 134 ++++++++++++++++++++++++++++++++++++++
include/linux/mlx5/mlx5_ifc.h | 8 +-
3 files changed, 143 insertions(+), 6 deletions(-)
create mode 100644 include/linux/mlx5/fs_helpers.h
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -59,6 +59,7 @@
#include "mlx5_ib.h"
#include "ib_rep.h"
#include "cmd.h"
+#include <linux/mlx5/fs_helpers.h>
#define DRIVER_NAME "mlx5_ib"
#define DRIVER_VERSION "5.0-0"
@@ -2316,8 +2317,6 @@ static void set_tos(void *outer_c, void
offsetof(typeof(filter), field) -\
sizeof(filter.field))
-#define IPV4_VERSION 4
-#define IPV6_VERSION 6
static int parse_flow_attr(struct mlx5_core_dev *mdev, u32 *match_c,
u32 *match_v, const union ib_flow_spec *ib_spec,
struct mlx5_flow_act *action)
@@ -2403,7 +2402,7 @@ static int parse_flow_attr(struct mlx5_c
MLX5_SET(fte_match_set_lyr_2_4, headers_c,
ip_version, 0xf);
MLX5_SET(fte_match_set_lyr_2_4, headers_v,
- ip_version, IPV4_VERSION);
+ ip_version, MLX5_FS_IPV4_VERSION);
} else {
MLX5_SET(fte_match_set_lyr_2_4, headers_c,
ethertype, 0xffff);
@@ -2442,7 +2441,7 @@ static int parse_flow_attr(struct mlx5_c
MLX5_SET(fte_match_set_lyr_2_4, headers_c,
ip_version, 0xf);
MLX5_SET(fte_match_set_lyr_2_4, headers_v,
- ip_version, IPV6_VERSION);
+ ip_version, MLX5_FS_IPV6_VERSION);
} else {
MLX5_SET(fte_match_set_lyr_2_4, headers_c,
ethertype, 0xffff);
--- /dev/null
+++ b/include/linux/mlx5/fs_helpers.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2018, Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef _MLX5_FS_HELPERS_
+#define _MLX5_FS_HELPERS_
+
+#include <linux/mlx5/mlx5_ifc.h>
+
+#define MLX5_FS_IPV4_VERSION 4
+#define MLX5_FS_IPV6_VERSION 6
+
+static inline bool _mlx5_fs_is_outer_ipproto_flow(const u32 *match_c,
+ const u32 *match_v, u8 match)
+{
+ const void *headers_c = MLX5_ADDR_OF(fte_match_param, match_c,
+ outer_headers);
+ const void *headers_v = MLX5_ADDR_OF(fte_match_param, match_v,
+ outer_headers);
+
+ return MLX5_GET(fte_match_set_lyr_2_4, headers_c, ip_protocol) == 0xff &&
+ MLX5_GET(fte_match_set_lyr_2_4, headers_v, ip_protocol) == match;
+}
+
+static inline bool mlx5_fs_is_outer_tcp_flow(const u32 *match_c,
+ const u32 *match_v)
+{
+ return _mlx5_fs_is_outer_ipproto_flow(match_c, match_v, IPPROTO_TCP);
+}
+
+static inline bool mlx5_fs_is_outer_udp_flow(const u32 *match_c,
+ const u32 *match_v)
+{
+ return _mlx5_fs_is_outer_ipproto_flow(match_c, match_v, IPPROTO_UDP);
+}
+
+static inline bool mlx5_fs_is_vxlan_flow(const u32 *match_c)
+{
+ void *misc_params_c = MLX5_ADDR_OF(fte_match_param, match_c,
+ misc_parameters);
+
+ return MLX5_GET(fte_match_set_misc, misc_params_c, vxlan_vni);
+}
+
+static inline bool _mlx5_fs_is_outer_ipv_flow(struct mlx5_core_dev *mdev,
+ const u32 *match_c,
+ const u32 *match_v, int version)
+{
+ int match_ipv = MLX5_CAP_FLOWTABLE_NIC_RX(mdev,
+ ft_field_support.outer_ip_version);
+ const void *headers_c = MLX5_ADDR_OF(fte_match_param, match_c,
+ outer_headers);
+ const void *headers_v = MLX5_ADDR_OF(fte_match_param, match_v,
+ outer_headers);
+
+ if (!match_ipv) {
+ u16 ethertype;
+
+ switch (version) {
+ case MLX5_FS_IPV4_VERSION:
+ ethertype = ETH_P_IP;
+ break;
+ case MLX5_FS_IPV6_VERSION:
+ ethertype = ETH_P_IPV6;
+ break;
+ default:
+ return false;
+ }
+
+ return MLX5_GET(fte_match_set_lyr_2_4, headers_c,
+ ethertype) == 0xffff &&
+ MLX5_GET(fte_match_set_lyr_2_4, headers_v,
+ ethertype) == ethertype;
+ }
+
+ return MLX5_GET(fte_match_set_lyr_2_4, headers_c,
+ ip_version) == 0xf &&
+ MLX5_GET(fte_match_set_lyr_2_4, headers_v,
+ ip_version) == version;
+}
+
+static inline bool
+mlx5_fs_is_outer_ipv4_flow(struct mlx5_core_dev *mdev, const u32 *match_c,
+ const u32 *match_v)
+{
+ return _mlx5_fs_is_outer_ipv_flow(mdev, match_c, match_v,
+ MLX5_FS_IPV4_VERSION);
+}
+
+static inline bool
+mlx5_fs_is_outer_ipv6_flow(struct mlx5_core_dev *mdev, const u32 *match_c,
+ const u32 *match_v)
+{
+ return _mlx5_fs_is_outer_ipv_flow(mdev, match_c, match_v,
+ MLX5_FS_IPV6_VERSION);
+}
+
+static inline bool mlx5_fs_is_outer_ipsec_flow(const u32 *match_c)
+{
+ void *misc_params_c =
+ MLX5_ADDR_OF(fte_match_param, match_c, misc_parameters);
+
+ return MLX5_GET(fte_match_set_misc, misc_params_c, outer_esp_spi);
+}
+
+#endif
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -295,7 +295,9 @@ struct mlx5_ifc_flow_table_fields_suppor
u8 inner_tcp_dport[0x1];
u8 inner_tcp_flags[0x1];
u8 reserved_at_37[0x9];
- u8 reserved_at_40[0x1a];
+ u8 reserved_at_40[0x17];
+ u8 outer_esp_spi[0x1];
+ u8 reserved_at_58[0x2];
u8 bth_dst_qp[0x1];
u8 reserved_at_5b[0x25];
@@ -437,7 +439,9 @@ struct mlx5_ifc_fte_match_set_misc_bits
u8 reserved_at_120[0x28];
u8 bth_dst_qp[0x18];
- u8 reserved_at_160[0xa0];
+ u8 reserved_at_160[0x20];
+ u8 outer_esp_spi[0x20];
+ u8 reserved_at_1a0[0x60];
};
struct mlx5_ifc_cmd_pas_bits {