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Merge branch 'mlx5_vdpa' into rdma.git for-next 

From the mlx5-next branch at
git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux

Merged due to dependencies in the next patches.

* branch 'mlx5_vdpa':
  net/mlx5: Expose vDPA emulation device capabilities
  net/mlx5: Add Virtio Emulation related device capabilities
This commit is contained in:
Jason Gunthorpe 2020-01-12 19:46:19 -04:00
parent 1e123d96b8 ca1992c62c
commit aef5570e23
3 changed files with 31 additions and 0 deletions
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7
drivers/net/ethernet/mellanox/mlx5/core/fw.c
View File

@ -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;
}

9
include/linux/mlx5/device.h
View File

@ -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,

15
include/linux/mlx5/mlx5_ifc.h
View File

@ -87,6 +87,7 @@ enum {
enum {
MLX5_GENERAL_OBJ_TYPES_CAP_SW_ICM = (1ULL << MLX5_OBJ_TYPE_SW_ICM),
MLX5_GENERAL_OBJ_TYPES_CAP_GENEVE_TLV_OPT = (1ULL << 11),
MLX5_GENERAL_OBJ_TYPES_CAP_VIRTIO_NET_Q = (1ULL << 13),
};
enum {
@ -953,6 +954,19 @@ struct mlx5_ifc_device_event_cap_bits {
u8 user_unaffiliated_events[4][0x40];
};
struct mlx5_ifc_device_virtio_emulation_cap_bits {
u8 reserved_at_0[0x20];
u8 reserved_at_20[0x13];
u8 log_doorbell_stride[0x5];
u8 reserved_at_38[0x3];
u8 log_doorbell_bar_size[0x5];
u8 doorbell_bar_offset[0x40];
u8 reserved_at_80[0x780];
};
enum {
MLX5_ATOMIC_CAPS_ATOMIC_SIZE_QP_1_BYTE = 0x0,
MLX5_ATOMIC_CAPS_ATOMIC_SIZE_QP_2_BYTES = 0x2,
@ -2751,6 +2765,7 @@ union mlx5_ifc_hca_cap_union_bits {
struct mlx5_ifc_fpga_cap_bits fpga_cap;
struct mlx5_ifc_tls_cap_bits tls_cap;
struct mlx5_ifc_device_mem_cap_bits device_mem_cap;
struct mlx5_ifc_device_virtio_emulation_cap_bits virtio_emulation_cap;
u8 reserved_at_0[0x8000];
};