diff options
| author | Tao Cui <cuitao@kylinos.cn> | 2026-06-15 08:36:46 +0800 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2026-07-01 13:51:13 -0400 |
| commit | 5911f6d6e7cce5f35bcaabc1895616e10a6d0aa2 (patch) | |
| tree | f2a2635a21210948edeefe8ea85c54a3119b5bc8 /include | |
| parent | dc59e4fea9d83f03bad6bddf3fa2e52491777482 (diff) | |
RDMA/nldev: Add resource summary max values for usage display
Add RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_MAX netlink attribute to expose
device resource limits (max_qp, max_cq, max_mr, max_pd, max_srq) in
the resource summary alongside the existing current count. This allows
userspace tools like iproute2's rdma to display resource usage in
curr/max format.
Expected output from "rdma resource show":
Before: 0: mlx5_0: qp 123 cq 45 mr 200 pd 10
After: 0: mlx5_0: qp 123/131072 cq 45/65536 mr 200/1000000 pd 10/32768
In JSON output, both "curr" and "max" fields will be provided so that
scripts can compute percentages if needed.
The new attribute is optional and backward compatible - old userspace
tools will simply ignore it.
Signed-off-by: Tao Cui <cuitao@kylinos.cn>
Link: https://patch.msgid.link/20260615003646.168704-1-cui.tao@linux.dev
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/rdma/rdma_netlink.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h index aac9782ddc09..3af946ecbac3 100644 --- a/include/uapi/rdma/rdma_netlink.h +++ b/include/uapi/rdma/rdma_netlink.h @@ -605,6 +605,11 @@ enum rdma_nldev_attr { RDMA_NLDEV_ATTR_FRMR_POOL_KEY_KERNEL_VENDOR_KEY, /* u64 */ /* + * Resource summary entry maximum value. + */ + RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_MAX, /* u64 */ + + /* * Always the end */ RDMA_NLDEV_ATTR_MAX |