From: Yonatan Nachum <ynachum@amazon.com>
To: <jgg@nvidia.com>, <leon@kernel.org>, <linux-rdma@vger.kernel.org>
Cc: <mrgolin@amazon.com>, <sleybo@amazon.com>, <matua@amazon.com>,
<gal.pressman@linux.dev>, Yonatan Nachum <ynachum@amazon.com>
Subject: [PATCH for-next v2 0/2] RDMA/efa: Add 64-bit SQ request ID support
Date: Wed, 22 Jul 2026 11:33:29 +0000 [thread overview]
Message-ID: <20260722113331.2515247-1-ynachum@amazon.com> (raw)
Changelog:
v2:
* Rebased on top of completion counters series:
https://lore.kernel.org/all/20260722083603.30334-1-mrgolin@amazon.com
v1: https://lore.kernel.org/all/20260721070026.1635441-1-ynachum@amazon.com
-------------------------------------------------------------------------
Currently EFA WRs support 16-bit request ID, this requires EFA to manage
a translation table to translate the IB WR ID from 64-bits to 16-bits
and translating it back on CQ completion.
This series adds support for a device capability that allows SQ WRs to
carry a full 64-bit request ID, removing the need for that translation
table on devices that support it.
The first patch adds the CQ/QP creation plumbing needed to negotiate
64-bit request ID support with the device. The second patch exposes
the new device capability bit to userspace so that the driver can
report support for it.
Yonatan Nachum (2):
RDMA/efa: Add CQ/QP creation with 64-bit SQ req ID support
RDMA/efa: Expose 64-bit send WR ID support to userspace
.../infiniband/hw/efa/efa_admin_cmds_defs.h | 20 ++++++++++++++++---
drivers/infiniband/hw/efa/efa_com_cmd.c | 8 ++++++++
drivers/infiniband/hw/efa/efa_com_cmd.h | 2 ++
drivers/infiniband/hw/efa/efa_io_defs.h | 12 +++++++++--
drivers/infiniband/hw/efa/efa_verbs.c | 10 ++++++++++
include/uapi/rdma/efa-abi.h | 5 ++++-
6 files changed, 51 insertions(+), 6 deletions(-)
--
2.50.1
next reply other threads:[~2026-07-22 11:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-22 11:33 Yonatan Nachum [this message]
2026-07-22 11:33 ` [PATCH for-next v2 1/2] RDMA/efa: Add CQ/QP creation with 64-bit SQ req ID support Yonatan Nachum
2026-07-22 11:33 ` [PATCH for-next v2 2/2] RDMA/efa: Expose 64-bit send WR ID support to userspace Yonatan Nachum
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