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net/mlx5: Enable management PF initialization

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Enable initialization of DPU Management PF, which is a new loopback PF
designed for communication with BMC.
For now Management PF doesn't support nor require most upper layer
protocols so avoid them.

Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Eran Ben Elisha <eranbe@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Shay Drory 2022-06-29 11:38:21 +03:00 committed by Saeed Mahameed
parent 0e414518d6
commit fe998a3c77
4 changed files with 20 additions and 1 deletions
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6
drivers/net/ethernet/mellanox/mlx5/core/dev.c
View file

@ -59,6 +59,9 @@ bool mlx5_eth_supported(struct mlx5_core_dev *dev)
if (!IS_ENABLED(CONFIG_MLX5_CORE_EN))
return false;
if (mlx5_core_is_management_pf(dev))
return false;
if (MLX5_CAP_GEN(dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
return false;
@ -198,6 +201,9 @@ bool mlx5_rdma_supported(struct mlx5_core_dev *dev)
if (!IS_ENABLED(CONFIG_MLX5_INFINIBAND))
return false;
if (mlx5_core_is_management_pf(dev))
return false;
if (dev->priv.flags & MLX5_PRIV_FLAGS_DISABLE_IB_ADEV)
return false;

8
drivers/net/ethernet/mellanox/mlx5/core/ecpf.c
View file

@ -75,6 +75,10 @@ int mlx5_ec_init(struct mlx5_core_dev *dev)
if (!mlx5_core_is_ecpf(dev))
return 0;
/* Management PF don't have a peer PF */
if (mlx5_core_is_management_pf(dev))
return 0;
return mlx5_host_pf_init(dev);
}
@ -85,6 +89,10 @@ void mlx5_ec_cleanup(struct mlx5_core_dev *dev)
if (!mlx5_core_is_ecpf(dev))
return;
/* Management PF don't have a peer PF */
if (mlx5_core_is_management_pf(dev))
return;
mlx5_host_pf_cleanup(dev);
err = mlx5_wait_for_pages(dev, &dev->priv.host_pf_pages);

2
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
View file

@ -1488,7 +1488,7 @@ int mlx5_esw_sf_max_hpf_functions(struct mlx5_core_dev *dev, u16 *max_sfs, u16 *
void *hca_caps;
int err;
if (!mlx5_core_is_ecpf(dev)) {
if (!mlx5_core_is_ecpf(dev) || mlx5_core_is_management_pf(dev)) {
*max_sfs = 0;
return 0;
}

5
include/linux/mlx5/driver.h
View file

@ -1202,6 +1202,11 @@ static inline bool mlx5_core_is_vf(const struct mlx5_core_dev *dev)
return dev->coredev_type == MLX5_COREDEV_VF;
}
static inline bool mlx5_core_is_management_pf(const struct mlx5_core_dev *dev)
{
return MLX5_CAP_GEN(dev, num_ports) == 1 && !MLX5_CAP_GEN(dev, native_port_num);
}
static inline bool mlx5_core_is_ecpf(const struct mlx5_core_dev *dev)
{
return dev->caps.embedded_cpu;