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net/mlx5: {DR,HWS}, Use the cached vhca_id for this device

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The mlx5 driver caches many capabilities to be used by mlx5 layers.

In SW and HW steering we can use the cached vhca_id instead of invoking
FW commands.

Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250829223722.900629-8-saeed@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Saeed Mahameed
2025-08-29 15:37:22 -07:00
committed by Paolo Abeni
parent 5d8ae2c2cf
commit 0c2a02f3c0
2 changed files with 14 additions and 54 deletions
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34
drivers/net/ethernet/mellanox/mlx5/core/steering/hws/cmd.c
View File

@@ -1200,40 +1200,20 @@ out:
int mlx5hws_cmd_query_gvmi(struct mlx5_core_dev *mdev, bool other_function,
u16 vport_number, u16 *gvmi)
{
u32 in[MLX5_ST_SZ_DW(query_hca_cap_in)] = {};
int out_size;
void *out;
int err;
if (other_function) {
err = mlx5_vport_get_vhca_id(mdev, vport_number, gvmi);
if (!err)
return 0;
if (!other_function) {
/* self vhca_id */
*gvmi = MLX5_CAP_GEN(mdev, vhca_id);
return 0;
}
err = mlx5_vport_get_vhca_id(mdev, vport_number, gvmi);
if (err) {
mlx5_core_err(mdev, "Failed to get vport vhca id for vport %d\n",
vport_number);
return err;
}
/* get vhca_id for `this` function */
out_size = MLX5_ST_SZ_BYTES(query_hca_cap_out);
out = kzalloc(out_size, GFP_KERNEL);
if (!out)
return -ENOMEM;
MLX5_SET(query_hca_cap_in, in, opcode, MLX5_CMD_OP_QUERY_HCA_CAP);
MLX5_SET(query_hca_cap_in, in, op_mod,
MLX5_SET_HCA_CAP_OP_MOD_GENERAL_DEVICE << 1 | HCA_CAP_OPMOD_GET_CUR);
err = mlx5_cmd_exec_inout(mdev, query_hca_cap, in, out);
if (err) {
kfree(out);
return err;
}
*gvmi = MLX5_GET(query_hca_cap_out, out, capability.cmd_hca_cap.vhca_id);
kfree(out);
return 0;
}

34
drivers/net/ethernet/mellanox/mlx5/core/steering/sws/dr_cmd.c
View File

@@ -35,41 +35,21 @@ int mlx5dr_cmd_query_esw_vport_context(struct mlx5_core_dev *mdev,
int mlx5dr_cmd_query_gvmi(struct mlx5_core_dev *mdev, bool other_vport,
u16 vport_number, u16 *gvmi)
{
u32 in[MLX5_ST_SZ_DW(query_hca_cap_in)] = {};
int out_size;
void *out;
int err;
if (other_vport) {
err = mlx5_vport_get_vhca_id(mdev, vport_number, gvmi);
if (!err)
return 0;
if (!other_vport) {
/* self vhca_id */
*gvmi = MLX5_CAP_GEN(mdev, vhca_id);
return 0;
}
err = mlx5_vport_get_vhca_id(mdev, vport_number, gvmi);
if (err) {
mlx5_core_err(mdev, "Failed to get vport vhca id for vport %d\n",
vport_number);
return err;
}
/* get vhca_id for `this` function */
out_size = MLX5_ST_SZ_BYTES(query_hca_cap_out);
out = kzalloc(out_size, GFP_KERNEL);
if (!out)
return -ENOMEM;
MLX5_SET(query_hca_cap_in, in, opcode, MLX5_CMD_OP_QUERY_HCA_CAP);
MLX5_SET(query_hca_cap_in, in, op_mod,
MLX5_SET_HCA_CAP_OP_MOD_GENERAL_DEVICE << 1 |
HCA_CAP_OPMOD_GET_CUR);
err = mlx5_cmd_exec_inout(mdev, query_hca_cap, in, out);
if (err) {
kfree(out);
return err;
}
*gvmi = MLX5_GET(query_hca_cap_out, out, capability.cmd_hca_cap.vhca_id);
kfree(out);
return 0;
}