[for-next v5 0/2] Add Reorder Completion Queue (RCQ) support

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

v5:
  - Rebased on latest for-next
v4:
  - Dropped robust udata from this series and sent as a seperate patch
    https://lore.kernel.org/linux-rdma/[email protected]/
  - Addressed sashiko review comments
  - https://lore.kernel.org/linux-rdma/[email protected]/
v3:
  - Added robust udata compatibility checks
  - https://lore.kernel.org/linux-rdma/[email protected]/
v2:
  - Dropped QP transport mode selection
  - https://lore.kernel.org/linux-rdma/[email protected]/
v1:
  - https://lore.kernel.org/linux-rdma/[email protected]/

Abhijit Gangurde (2):
  net: ionic: Fetch RCQ sign bit from firmware
  RDMA/ionic: Add RCQ userspace support

 .../infiniband/hw/ionic/ionic_controlpath.c   | 19 ++++++++++++++++---
 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 +
 .../net/ethernet/pensando/ionic/ionic_if.h    |  6 +++++-
 include/uapi/rdma/ionic-abi.h                 |  5 ++++-
 6 files changed, 29 insertions(+), 5 deletions(-)

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2.44.4