[for-next v2 0/2] Add Reorder Completion Queue (RCQ) support
From: Abhijit Gangurde <abhijit.gangurde@amd.com>
Date: 2026-06-11 09:25:55
Also in:
linux-rdma, lkml
From: Abhijit Gangurde <abhijit.gangurde@amd.com>
Date: 2026-06-11 09:25:55
Also in:
linux-rdma, lkml
This series adds userspace support for the Reorder Completion Queue (RCQ) feature in the ionic RDMA driver. Patch 1 extends the net/ionic firmware identity structure to expose the rcq_sign_bit field from the RDMA LIF identity. Patch 2 plumbs the RCQ sign bit through the RDMA driver's LIF configuration, exposes it to userspace via the ucontext response, and allows userspace to specify ionic specific QP flags during QP creation. This enables rdma-core to discover RCQ capability at context allocation time and configure QPs with RCQ support. PR: https://github.com/linux-rdma/rdma-core/pull/1733 v2: - Dropped QP transport mode selection v1: - https://lore.kernel.org/linux-rdma/20260430123931.3256130-1-abhijit.gangurde@amd.com/ (local) Abhijit Gangurde (2): net: ionic: Fetch RCQ sign bit from firmware RDMA/ionic: Add RCQ userspace support drivers/infiniband/hw/ionic/ionic_controlpath.c | 11 +++++++---- drivers/infiniband/hw/ionic/ionic_fw.h | 2 ++ drivers/infiniband/hw/ionic/ionic_lif_cfg.c | 1 + drivers/infiniband/hw/ionic/ionic_lif_cfg.h | 1 + drivers/net/ethernet/pensando/ionic/ionic_if.h | 6 +++++- include/uapi/rdma/ionic-abi.h | 4 +++- 6 files changed, 19 insertions(+), 6 deletions(-) -- 2.43.0