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net/mlx5: E-Switch, Consider SF ports of host PF

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Query SF vports count and base id of host PF from the firmware.

Account these ports in the total port calculation whenever it is non
zero.

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Vu Pham <vuhuong@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Parav Pandit 2021-03-02 14:20:21 +02:00 committed by Saeed Mahameed
parent 47dd7e609f
commit 87bd418ea7
2 changed files with 56 additions and 0 deletions
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55
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
View File

@ -1566,6 +1566,48 @@ void mlx5_eswitch_disable(struct mlx5_eswitch *esw, bool clear_vf)
up_write(&esw->mode_lock);
}
static int mlx5_query_hca_cap_host_pf(struct mlx5_core_dev *dev, void *out)
{
u16 opmod = (MLX5_CAP_GENERAL << 1) | (HCA_CAP_OPMOD_GET_MAX & 0x01);
u8 in[MLX5_ST_SZ_BYTES(query_hca_cap_in)] = {};
MLX5_SET(query_hca_cap_in, in, opcode, MLX5_CMD_OP_QUERY_HCA_CAP);
MLX5_SET(query_hca_cap_in, in, op_mod, opmod);
MLX5_SET(query_hca_cap_in, in, function_id, MLX5_VPORT_PF);
MLX5_SET(query_hca_cap_in, in, other_function, true);
return mlx5_cmd_exec_inout(dev, query_hca_cap, in, out);
}
int mlx5_esw_sf_max_hpf_functions(struct mlx5_core_dev *dev, u16 *max_sfs, u16 *sf_base_id)
{
int query_out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out);
void *query_ctx;
void *hca_caps;
int err;
if (!mlx5_core_is_ecpf(dev)) {
*max_sfs = 0;
return 0;
}
query_ctx = kzalloc(query_out_sz, GFP_KERNEL);
if (!query_ctx)
return -ENOMEM;
err = mlx5_query_hca_cap_host_pf(dev, query_ctx);
if (err)
goto out_free;
hca_caps = MLX5_ADDR_OF(query_hca_cap_out, query_ctx, capability);
*max_sfs = MLX5_GET(cmd_hca_cap, hca_caps, max_num_sf);
*sf_base_id = MLX5_GET(cmd_hca_cap, hca_caps, sf_base_id);
out_free:
kfree(query_ctx);
return err;
}
static int mlx5_esw_vport_alloc(struct mlx5_eswitch *esw, struct mlx5_core_dev *dev,
int index, u16 vport_num)
{
@ -1612,6 +1654,7 @@ static void mlx5_esw_vports_cleanup(struct mlx5_eswitch *esw)
static int mlx5_esw_vports_init(struct mlx5_eswitch *esw)
{
struct mlx5_core_dev *dev = esw->dev;
u16 max_host_pf_sfs;
u16 base_sf_num;
int idx = 0;
int err;
@ -1642,6 +1685,18 @@ static int mlx5_esw_vports_init(struct mlx5_eswitch *esw)
xa_set_mark(&esw->vports, base_sf_num + i, MLX5_ESW_VPT_SF);
idx++;
}
err = mlx5_esw_sf_max_hpf_functions(dev, &max_host_pf_sfs, &base_sf_num);
if (err)
goto err;
for (i = 0; i < max_host_pf_sfs; i++) {
err = mlx5_esw_vport_alloc(esw, dev, idx, base_sf_num + i);
if (err)
goto err;
xa_set_mark(&esw->vports, base_sf_num + i, MLX5_ESW_VPT_SF);
idx++;
}
if (mlx5_ecpf_vport_exists(dev)) {
err = mlx5_esw_vport_alloc(esw, dev, idx, MLX5_VPORT_ECPF);
if (err)

1
drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
View File

@ -668,6 +668,7 @@ void mlx5_esw_devlink_sf_port_unregister(struct mlx5_eswitch *esw, u16 vport_num
int mlx5_esw_offloads_sf_vport_enable(struct mlx5_eswitch *esw, struct devlink_port *dl_port,
u16 vport_num, u32 sfnum);
void mlx5_esw_offloads_sf_vport_disable(struct mlx5_eswitch *esw, u16 vport_num);
int mlx5_esw_sf_max_hpf_functions(struct mlx5_core_dev *dev, u16 *max_sfs, u16 *sf_base_id);
int mlx5_esw_vport_vhca_id_set(struct mlx5_eswitch *esw, u16 vport_num);
void mlx5_esw_vport_vhca_id_clear(struct mlx5_eswitch *esw, u16 vport_num);