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RDMA/mlx5: Support handling of SW encap ICM area

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New type for this ICM area, now the user can allocate/deallocate
the new type of SW encap ICM memory, to store the encap header data
which are managed by SW.

Signed-off-by: Shun Hao <shunh@nvidia.com>
Link: https://lore.kernel.org/r/546fe43fc700240709e30acf7713ec6834d652bd.1701871118.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Shun Hao 2023-12-06 16:01:35 +02:00 committed by Leon Romanovsky
parent 1ca51628e7
commit a429ec96c0
4 changed files with 8 additions and 0 deletions
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5
drivers/infiniband/hw/mlx5/dm.c
View file

@ -341,6 +341,8 @@ static enum mlx5_sw_icm_type get_icm_type(int uapi_type)
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_ENCAP_SW_ICM:
return MLX5_SW_ICM_TYPE_SW_ENCAP;
case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
default:
return MLX5_SW_ICM_TYPE_STEERING;
@ -364,6 +366,7 @@ static struct ib_dm *handle_alloc_dm_sw_icm(struct ib_ucontext *ctx,
switch (type) {
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_ENCAP_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) ||
@ -438,6 +441,7 @@ struct ib_dm *mlx5_ib_alloc_dm(struct ib_device *ibdev,
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:
case MLX5_IB_UAPI_DM_TYPE_ENCAP_SW_ICM:
return handle_alloc_dm_sw_icm(context, attr, attrs, type);
default:
return ERR_PTR(-EOPNOTSUPP);
@ -491,6 +495,7 @@ static int mlx5_ib_dealloc_dm(struct ib_dm *ibdm,
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:
case MLX5_IB_UAPI_DM_TYPE_ENCAP_SW_ICM:
return mlx5_dm_icm_dealloc(ctx, to_icm(ibdm));
default:
return -EOPNOTSUPP;

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

@ -1347,6 +1347,7 @@ struct ib_mr *mlx5_ib_reg_dm_mr(struct ib_pd *pd, struct ib_dm *dm,
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:
case MLX5_IB_UAPI_DM_TYPE_ENCAP_SW_ICM:
if (attr->access_flags & ~MLX5_IB_DM_SW_ICM_ALLOWED_ACCESS)
return ERR_PTR(-EINVAL);

1
include/linux/mlx5/driver.h
View file

@ -688,6 +688,7 @@ enum mlx5_sw_icm_type {
MLX5_SW_ICM_TYPE_STEERING,
MLX5_SW_ICM_TYPE_HEADER_MODIFY,
MLX5_SW_ICM_TYPE_HEADER_MODIFY_PATTERN,
MLX5_SW_ICM_TYPE_SW_ENCAP,
};
#define MLX5_MAX_RESERVED_GIDS 8

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

@ -64,6 +64,7 @@ enum mlx5_ib_uapi_dm_type {
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,
MLX5_IB_UAPI_DM_TYPE_ENCAP_SW_ICM,
};
enum mlx5_ib_uapi_devx_create_event_channel_flags {