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| author | Jiri Pirko <jiri@nvidia.com> | 2026-07-01 14:40:13 +0200 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2026-07-23 08:33:32 -0400 |
| commit | fe34dc1fa082243f087d8d0aea287b2c04d813b6 (patch) | |
| tree | 23bea003ef52eea7f0b685c5790000d83d6cc985 /include/uapi/rdma | |
| parent | 1773ca1a8912ccad9e7de458413aef9ab42ec5d9 (diff) | |
| download | linux-fe34dc1fa082243f087d8d0aea287b2c04d813b6.tar.gz linux-fe34dc1fa082243f087d8d0aea287b2c04d813b6.zip | |
RDMA/uverbs: Add SRQ buffer UMEM attribute
Apply the per-attribute UMEM model to the SRQ create method. Add an
optional UMEM attribute that backs the SRQ WQE buffer, so userspace can
supply it as either a VA or a dma-buf through a single descriptor,
consistent with the CQ and QP create methods.
mlx5 is the only driver that pins an SRQ WQE buffer via umem; it maps a
single ucmd->buf_addr region through this attribute. No other driver
implements a user SRQ buffer, so none of them use the attribute.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Link: https://patch.msgid.link/20260701124015.64350-2-jiri@resnulli.us
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'include/uapi/rdma')
| -rw-r--r-- | include/uapi/rdma/ib_user_ioctl_cmds.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/rdma/ib_user_ioctl_cmds.h b/include/uapi/rdma/ib_user_ioctl_cmds.h index 6a3d59d03f54..816b3107464f 100644 --- a/include/uapi/rdma/ib_user_ioctl_cmds.h +++ b/include/uapi/rdma/ib_user_ioctl_cmds.h @@ -204,6 +204,7 @@ enum uverbs_attrs_create_srq_cmd_attr_ids { UVERBS_ATTR_CREATE_SRQ_RESP_MAX_WR, UVERBS_ATTR_CREATE_SRQ_RESP_MAX_SGE, UVERBS_ATTR_CREATE_SRQ_RESP_SRQ_NUM, + UVERBS_ATTR_CREATE_SRQ_BUF_UMEM, }; enum uverbs_attrs_destroy_srq_cmd_attr_ids { |