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Message-ID: <20250107060708.1610882-2-tariqt@nvidia.com>
Date: Tue, 7 Jan 2025 08:06:56 +0200
From: Tariq Toukan <tariqt@...dia.com>
To: "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>, Eric Dumazet <edumazet@...gle.com>, "Andrew
Lunn" <andrew+netdev@...n.ch>
CC: <netdev@...r.kernel.org>, Saeed Mahameed <saeedm@...dia.com>, Gal Pressman
<gal@...dia.com>, Leon Romanovsky <leonro@...dia.com>, Mark Bloch
<mbloch@...dia.com>, Moshe Shemesh <moshe@...dia.com>, Yevgeny Kliteynik
<kliteyn@...dia.com>, Tariq Toukan <tariqt@...dia.com>
Subject: [PATCH net-next 01/13] net/mlx5: fs, add HWS root namespace functions
From: Moshe Shemesh <moshe@...dia.com>
Add flow steering commands structure for HW steering. Implement create,
destroy and set peer HW steering root namespace functions.
Signed-off-by: Moshe Shemesh <moshe@...dia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@...dia.com>
Reviewed-by: Mark Bloch <mbloch@...dia.com>
Signed-off-by: Tariq Toukan <tariqt@...dia.com>
---
.../net/ethernet/mellanox/mlx5/core/Makefile | 4 +-
.../net/ethernet/mellanox/mlx5/core/fs_core.h | 9 ++-
.../mellanox/mlx5/core/steering/hws/fs_hws.c | 56 +++++++++++++++++++
.../mellanox/mlx5/core/steering/hws/fs_hws.h | 25 +++++++++
4 files changed, 90 insertions(+), 4 deletions(-)
create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.c
create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.h
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
index 10a763e668ed..0008b22417c8 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/Makefile
+++ b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
@@ -151,8 +151,8 @@ mlx5_core-$(CONFIG_MLX5_HW_STEERING) += steering/hws/cmd.o \
steering/hws/bwc.o \
steering/hws/debug.o \
steering/hws/vport.o \
- steering/hws/bwc_complex.o
-
+ steering/hws/bwc_complex.o \
+ steering/hws/fs_hws.o
#
# SF device
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
index bad2df0715ec..545fdfce7b52 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
@@ -38,6 +38,7 @@
#include <linux/rhashtable.h>
#include <linux/llist.h>
#include <steering/sws/fs_dr.h>
+#include <steering/hws/fs_hws.h>
#define FDB_TC_MAX_CHAIN 3
#define FDB_FT_CHAIN (FDB_TC_MAX_CHAIN + 1)
@@ -126,7 +127,8 @@ enum fs_fte_status {
enum mlx5_flow_steering_mode {
MLX5_FLOW_STEERING_MODE_DMFS,
- MLX5_FLOW_STEERING_MODE_SMFS
+ MLX5_FLOW_STEERING_MODE_SMFS,
+ MLX5_FLOW_STEERING_MODE_HMFS
};
enum mlx5_flow_steering_capabilty {
@@ -293,7 +295,10 @@ struct mlx5_flow_group {
struct mlx5_flow_root_namespace {
struct mlx5_flow_namespace ns;
enum mlx5_flow_steering_mode mode;
- struct mlx5_fs_dr_domain fs_dr_domain;
+ union {
+ struct mlx5_fs_dr_domain fs_dr_domain;
+ struct mlx5_fs_hws_context fs_hws_context;
+ };
enum fs_flow_table_type table_type;
struct mlx5_core_dev *dev;
struct mlx5_flow_table *root_ft;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.c
new file mode 100644
index 000000000000..7a3c84b18d1e
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+/* Copyright (c) 2024 NVIDIA Corporation & Affiliates */
+
+#include <mlx5_core.h>
+#include <fs_core.h>
+#include <fs_cmd.h>
+#include "mlx5hws.h"
+
+#define MLX5HWS_CTX_MAX_NUM_OF_QUEUES 16
+#define MLX5HWS_CTX_QUEUE_SIZE 256
+
+static int mlx5_cmd_hws_create_ns(struct mlx5_flow_root_namespace *ns)
+{
+ struct mlx5hws_context_attr hws_ctx_attr = {};
+
+ hws_ctx_attr.queues = min_t(int, num_online_cpus(),
+ MLX5HWS_CTX_MAX_NUM_OF_QUEUES);
+ hws_ctx_attr.queue_size = MLX5HWS_CTX_QUEUE_SIZE;
+
+ ns->fs_hws_context.hws_ctx =
+ mlx5hws_context_open(ns->dev, &hws_ctx_attr);
+ if (!ns->fs_hws_context.hws_ctx) {
+ mlx5_core_err(ns->dev, "Failed to create hws flow namespace\n");
+ return -EOPNOTSUPP;
+ }
+ return 0;
+}
+
+static int mlx5_cmd_hws_destroy_ns(struct mlx5_flow_root_namespace *ns)
+{
+ return mlx5hws_context_close(ns->fs_hws_context.hws_ctx);
+}
+
+static int mlx5_cmd_hws_set_peer(struct mlx5_flow_root_namespace *ns,
+ struct mlx5_flow_root_namespace *peer_ns,
+ u16 peer_vhca_id)
+{
+ struct mlx5hws_context *peer_ctx = NULL;
+
+ if (peer_ns)
+ peer_ctx = peer_ns->fs_hws_context.hws_ctx;
+ mlx5hws_context_set_peer(ns->fs_hws_context.hws_ctx, peer_ctx,
+ peer_vhca_id);
+ return 0;
+}
+
+static const struct mlx5_flow_cmds mlx5_flow_cmds_hws = {
+ .create_ns = mlx5_cmd_hws_create_ns,
+ .destroy_ns = mlx5_cmd_hws_destroy_ns,
+ .set_peer = mlx5_cmd_hws_set_peer,
+};
+
+const struct mlx5_flow_cmds *mlx5_fs_cmd_get_hws_cmds(void)
+{
+ return &mlx5_flow_cmds_hws;
+}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.h b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.h
new file mode 100644
index 000000000000..a2e2935d7367
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/* Copyright (c) 2024 NVIDIA Corporation & Affiliates */
+
+#ifndef _MLX5_FS_HWS_
+#define _MLX5_FS_HWS_
+
+#include "mlx5hws.h"
+
+struct mlx5_fs_hws_context {
+ struct mlx5hws_context *hws_ctx;
+};
+
+#ifdef CONFIG_MLX5_HW_STEERING
+
+const struct mlx5_flow_cmds *mlx5_fs_cmd_get_hws_cmds(void);
+
+#else
+
+static inline const struct mlx5_flow_cmds *mlx5_fs_cmd_get_hws_cmds(void)
+{
+ return NULL;
+}
+
+#endif /* CONFIG_MLX5_HWS_STEERING */
+#endif
--
2.45.0
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