Thread (3 messages) 3 messages, 1 author, 12h ago
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[PATCH rdma-next v2 0/2] mlx5: Deprecate latency-sensitive QPs feature

From: Edward Srouji <hidden>
Date: 2026-07-26 09:09:51
Also in: linux-rdma, lkml

New HW no longer implements a separate class for latency-sensitive QPs
and advertises this by a new cap bit.
REG_UMR is the only QP that used this feature, so gate its usage of the
feature on this cap.

Signed-off-by: Edward Srouji <redacted>
---
Changes in v2:
- Split the mlx5_ifc.h capabiltiy bit addition into a separate patch
- Link to v1: https://lore.kernel.org/r/20260723-deprecate-lat-qps-v1-1-8bc8b8431520@nvidia.com (local)

---
Michael Guralnik (2):
      net/mlx5: Add qp_latency_sensitive_disable cap bit
      RDMA/mlx5: Deprecate latency-sensitive QPs feature

 drivers/infiniband/hw/mlx5/main.c |  6 +++++-
 drivers/infiniband/hw/mlx5/qp.c   | 12 +++++++-----
 include/linux/mlx5/mlx5_ifc.h     |  3 ++-
 3 files changed, 14 insertions(+), 7 deletions(-)
---
base-commit: 9b66c9af7172ffcf727214fa0ebe9a5e1ed6eb16
change-id: 20260723-deprecate-lat-qps-ca1942227499

Best regards,
-- 
Edward Srouji [off-list ref]
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