Commit ca1992c6 authored by Yishai Hadas's avatar Yishai Hadas Committed by Leon Romanovsky
Browse files

net/mlx5: Expose vDPA emulation device capabilities 



Expose vDPA emulation device capabilities from the core layer.
It includes reading the capabilities from the firmware and exposing
helper functions to access the data.

Signed-off-by: default avatarYishai Hadas <yishaih@mellanox.com>
Reviewed-by: default avatarShahaf Shuler <shahafs@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leonro@mellanox.com>
parent 90fbca59

drivers/net/ethernet/mellanox/mlx5/core/fw.c

+7 −0
Original line number Diff line number Diff line
@@ -245,6 +245,13 @@ int mlx5_query_hca_caps(struct mlx5_core_dev *dev) 
			return err;

	}



	if (MLX5_CAP_GEN_64(dev, general_obj_types) &

		MLX5_GENERAL_OBJ_TYPES_CAP_VIRTIO_NET_Q) {

		err = mlx5_core_get_caps(dev, MLX5_CAP_VDPA_EMULATION);

		if (err)

			return err;

	}



	return 0;

}

include/linux/mlx5/device.h

+9 −0
Original line number Diff line number Diff line
@@ -1105,6 +1105,7 @@ enum mlx5_cap_type { 
	MLX5_CAP_DEV_MEM,

	MLX5_CAP_RESERVED_16,

	MLX5_CAP_TLS,

	MLX5_CAP_VDPA_EMULATION = 0x13,

	MLX5_CAP_DEV_EVENT = 0x14,

	/* NUM OF CAP Types */

	MLX5_CAP_NUM
@@ -1297,6 +1298,14 @@ enum mlx5_qcam_feature_groups { 
#define MLX5_CAP_DEV_EVENT(mdev, cap)\

	MLX5_ADDR_OF(device_event_cap, (mdev)->caps.hca_cur[MLX5_CAP_DEV_EVENT], cap)



#define MLX5_CAP_DEV_VDPA_EMULATION(mdev, cap)\

	MLX5_GET(device_virtio_emulation_cap, \

		(mdev)->caps.hca_cur[MLX5_CAP_VDPA_EMULATION], cap)



#define MLX5_CAP64_DEV_VDPA_EMULATION(mdev, cap)\

	MLX5_GET64(device_virtio_emulation_cap, \

		(mdev)->caps.hca_cur[MLX5_CAP_VDPA_EMULATION], cap)



enum {

	MLX5_CMD_STAT_OK			= 0x0,

	MLX5_CMD_STAT_INT_ERR			= 0x1,

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