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RDMA/mlx5: Support handling of modify-header pattern ICM area 

Add support for allocate/deallocate and registering MR of the new type
of ICM area. Support exists only for devices that support sw_owner_v2.

Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Yevgeny Kliteynik 2022-06-07 15:47:45 +03:00 committed by Saeed Mahameed
parent 667658364b
commit a6492af380
3 changed files with 37 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

53
drivers/infiniband/hw/mlx5/dm.c
View File

@ -336,9 +336,15 @@ static struct ib_dm *handle_alloc_dm_memic(struct ib_ucontext *ctx,
static enum mlx5_sw_icm_type get_icm_type(int uapi_type)
{
return uapi_type == MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM ?
MLX5_SW_ICM_TYPE_STEERING :
MLX5_SW_ICM_TYPE_HEADER_MODIFY;
switch (uapi_type) {
case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
return MLX5_SW_ICM_TYPE_HEADER_MODIFY;
case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_PATTERN_SW_ICM:
return MLX5_SW_ICM_TYPE_HEADER_MODIFY_PATTERN;
case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
default:
return MLX5_SW_ICM_TYPE_STEERING;
}
}
static struct ib_dm *handle_alloc_dm_sw_icm(struct ib_ucontext *ctx,
@ -347,11 +353,32 @@ static struct ib_dm *handle_alloc_dm_sw_icm(struct ib_ucontext *ctx,
int type)
{
struct mlx5_core_dev *dev = to_mdev(ctx->device)->mdev;
enum mlx5_sw_icm_type icm_type = get_icm_type(type);
enum mlx5_sw_icm_type icm_type;
struct mlx5_ib_dm_icm *dm;
u64 act_size;
int err;
if (!capable(CAP_SYS_RAWIO) || !capable(CAP_NET_RAW))
return ERR_PTR(-EPERM);
switch (type) {
case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
if (!(MLX5_CAP_FLOWTABLE_NIC_RX(dev, sw_owner) ||
MLX5_CAP_FLOWTABLE_NIC_TX(dev, sw_owner) ||
MLX5_CAP_FLOWTABLE_NIC_RX(dev, sw_owner_v2) ||
MLX5_CAP_FLOWTABLE_NIC_TX(dev, sw_owner_v2)))
return ERR_PTR(-EOPNOTSUPP);
break;
case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_PATTERN_SW_ICM:
if (!MLX5_CAP_FLOWTABLE_NIC_RX(dev, sw_owner_v2) ||
!MLX5_CAP_FLOWTABLE_NIC_TX(dev, sw_owner_v2))
return ERR_PTR(-EOPNOTSUPP);
break;
default:
return ERR_PTR(-EOPNOTSUPP);
}
dm = kzalloc(sizeof(*dm), GFP_KERNEL);
if (!dm)
return ERR_PTR(-ENOMEM);
@ -359,19 +386,6 @@ static struct ib_dm *handle_alloc_dm_sw_icm(struct ib_ucontext *ctx,
dm->base.type = type;
dm->base.ibdm.device = ctx->device;
if (!capable(CAP_SYS_RAWIO) || !capable(CAP_NET_RAW)) {
err = -EPERM;
goto free;
}
if (!(MLX5_CAP_FLOWTABLE_NIC_RX(dev, sw_owner) ||
MLX5_CAP_FLOWTABLE_NIC_TX(dev, sw_owner) ||
MLX5_CAP_FLOWTABLE_NIC_RX(dev, sw_owner_v2) ||
MLX5_CAP_FLOWTABLE_NIC_TX(dev, sw_owner_v2))) {
err = -EOPNOTSUPP;
goto free;
}
/* Allocation size must a multiple of the basic block size
* and a power of 2.
*/
@ -379,6 +393,8 @@ static struct ib_dm *handle_alloc_dm_sw_icm(struct ib_ucontext *ctx,
act_size = roundup_pow_of_two(act_size);
dm->base.size = act_size;
icm_type = get_icm_type(type);
err = mlx5_dm_sw_icm_alloc(dev, icm_type, act_size, attr->alignment,
to_mucontext(ctx)->devx_uid,
&dm->base.dev_addr, &dm->obj_id);
@ -420,8 +436,8 @@ struct ib_dm *mlx5_ib_alloc_dm(struct ib_device *ibdev,
case MLX5_IB_UAPI_DM_TYPE_MEMIC:
return handle_alloc_dm_memic(context, attr, attrs);
case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
return handle_alloc_dm_sw_icm(context, attr, attrs, type);
case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_PATTERN_SW_ICM:
return handle_alloc_dm_sw_icm(context, attr, attrs, type);
default:
return ERR_PTR(-EOPNOTSUPP);
@ -474,6 +490,7 @@ static int mlx5_ib_dealloc_dm(struct ib_dm *ibdm,
return 0;
case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_PATTERN_SW_ICM:
return mlx5_dm_icm_dealloc(ctx, to_icm(ibdm));
default:
return -EOPNOTSUPP;

1
drivers/infiniband/hw/mlx5/mr.c
View File

@ -1083,6 +1083,7 @@ struct ib_mr *mlx5_ib_reg_dm_mr(struct ib_pd *pd, struct ib_dm *dm,
break;
case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_PATTERN_SW_ICM:
if (attr->access_flags & ~MLX5_IB_DM_SW_ICM_ALLOWED_ACCESS)
return ERR_PTR(-EINVAL);

1
include/uapi/rdma/mlx5_user_ioctl_verbs.h
View File

@ -63,6 +63,7 @@ enum mlx5_ib_uapi_dm_type {
MLX5_IB_UAPI_DM_TYPE_MEMIC,
MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM,
MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM,
MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_PATTERN_SW_ICM,
};
enum mlx5_ib_uapi_devx_create_event_channel_flags {