diff mbox series

[net-next,V3,3/4] net/mlx5: Set default max eqs for SFs

Message ID 20240712003310.355106-4-saeed@kernel.org (mailing list archive)
State Accepted
Commit 20d80b95a7e4adbd1963c152cf79a58a93b4f577
Delegated to: Netdev Maintainers
Headers show
Series mlx5 misc 2023-07-08 (sf max eq) | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 816 this patch: 816
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers warning 1 maintainers not CCed: jiri@resnulli.us
netdev/build_clang success Errors and warnings before: 821 this patch: 821
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 821 this patch: 821
netdev/checkpatch warning WARNING: line length of 83 exceeds 80 columns WARNING: line length of 90 exceeds 80 columns
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 1 this patch: 1
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-07-13--03-00 (tests: 696)

Commit Message

Saeed Mahameed July 12, 2024, 12:33 a.m. UTC 
From: Daniel Jurgens <danielj@nvidia.com>

If the user hasn't configured max_io_eqs set a low default. The SF
driver shouldn't try to create more than this, but FW will enforce this
limit.

Signed-off-by: Daniel Jurgens <danielj@nvidia.com>
Reviewed-by: William Tu <witu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/eswitch.h    |  3 +++
 .../ethernet/mellanox/mlx5/core/eswitch_offloads.c   | 12 +++++++++++-
 drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c | 12 ++++++++++++
 3 files changed, 26 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
index 88745dc6aed5..578466d69f21 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
@@ -223,6 +223,7 @@  struct mlx5_vport {
 
 	u16 vport;
 	bool                    enabled;
+	bool max_eqs_set;
 	enum mlx5_eswitch_vport_event enabled_events;
 	int index;
 	struct mlx5_devlink_port *dl_port;
@@ -579,6 +580,8 @@  int mlx5_devlink_port_fn_max_io_eqs_get(struct devlink_port *port,
 int mlx5_devlink_port_fn_max_io_eqs_set(struct devlink_port *port,
 					u32 max_io_eqs,
 					struct netlink_ext_ack *extack);
+int mlx5_devlink_port_fn_max_io_eqs_set_sf_default(struct devlink_port *port,
+						   struct netlink_ext_ack *extack);
 
 void *mlx5_eswitch_get_uplink_priv(struct mlx5_eswitch *esw, u8 rep_type);
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 099a716f1784..768199d2255a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -68,6 +68,7 @@ 
 #define MLX5_ESW_FT_OFFLOADS_DROP_RULE (1)
 
 #define MLX5_ESW_MAX_CTRL_EQS 4
+#define MLX5_ESW_DEFAULT_SF_COMP_EQS 8
 
 static struct esw_vport_tbl_namespace mlx5_esw_vport_tbl_mirror_ns = {
 	.max_fte = MLX5_ESW_VPORT_TBL_SIZE,
@@ -4683,9 +4684,18 @@  mlx5_devlink_port_fn_max_io_eqs_set(struct devlink_port *port, u32 max_io_eqs,
 					    MLX5_SET_HCA_CAP_OP_MOD_GENERAL_DEVICE2);
 	if (err)
 		NL_SET_ERR_MSG_MOD(extack, "Failed setting HCA caps");
-
+	vport->max_eqs_set = true;
 out:
 	mutex_unlock(&esw->state_lock);
 	kfree(query_ctx);
 	return err;
 }
+
+int
+mlx5_devlink_port_fn_max_io_eqs_set_sf_default(struct devlink_port *port,
+					       struct netlink_ext_ack *extack)
+{
+	return mlx5_devlink_port_fn_max_io_eqs_set(port,
+						   MLX5_ESW_DEFAULT_SF_COMP_EQS,
+						   extack);
+}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c b/drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c
index 6c11e075cab0..a96be98be032 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c
@@ -161,6 +161,7 @@  int mlx5_devlink_sf_port_fn_state_get(struct devlink_port *dl_port,
 static int mlx5_sf_activate(struct mlx5_core_dev *dev, struct mlx5_sf *sf,
 			    struct netlink_ext_ack *extack)
 {
+	struct mlx5_vport *vport;
 	int err;
 
 	if (mlx5_sf_is_active(sf))
@@ -170,6 +171,13 @@  static int mlx5_sf_activate(struct mlx5_core_dev *dev, struct mlx5_sf *sf,
 		return -EBUSY;
 	}
 
+	vport = mlx5_devlink_port_vport_get(&sf->dl_port.dl_port);
+	if (!vport->max_eqs_set && MLX5_CAP_GEN_2(dev, max_num_eqs_24b)) {
+		err = mlx5_devlink_port_fn_max_io_eqs_set_sf_default(&sf->dl_port.dl_port,
+								     extack);
+		if (err)
+			return err;
+	}
 	err = mlx5_cmd_sf_enable_hca(dev, sf->hw_fn_id);
 	if (err)
 		return err;
@@ -318,7 +326,11 @@  int mlx5_devlink_sf_port_new(struct devlink *devlink,
 
 static void mlx5_sf_dealloc(struct mlx5_sf_table *table, struct mlx5_sf *sf)
 {
+	struct mlx5_vport *vport;
+
 	mutex_lock(&table->sf_state_lock);
+	vport = mlx5_devlink_port_vport_get(&sf->dl_port.dl_port);
+	vport->max_eqs_set = false;
 
 	mlx5_sf_function_id_erase(table, sf);