diff options
| author |   Yonatan Nachum <ynachum@amazon.com> | 2026-07-22 11:33:31 +0000 |
|---|---|---|
| committer |   Leon Romanovsky <leon@kernel.org> | 2026-07-23 04:01:42 -0400 |
| commit | 524381ef281bb886f215ac9341b3c2e5b59ec178 (patch) | |
| tree | 65187fbe605669589a31bdee129f0e76e3fdee59 | |
| parent | RDMA/efa: Add CQ/QP creation with 64-bit SQ req ID support (diff) | |
RDMA/efa: Expose 64-bit send WR ID support to userspace
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.
Expose a new device capability to handle 64-bit request ID for SQ WRs
allowing userspace to directly post the 64-bit ID to the device.
Reviewed-by: Michael Margolin <mrgolin@amazon.com>
Reviewed-by: Tom Sela <tomsela@amazon.com>
Signed-off-by: Yonatan Nachum <ynachum@amazon.com>
Link: https://patch.msgid.link/20260722113331.2515247-3-ynachum@amazon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
| -rw-r--r-- | drivers/infiniband/hw/efa/efa_verbs.c | 3 | ||||
| -rw-r--r-- | include/uapi/rdma/efa-abi.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/efa/efa_verbs.c b/drivers/infiniband/hw/efa/efa_verbs.c index 73a80caca7e2..6abb93b50731 100644 --- a/drivers/infiniband/hw/efa/efa_verbs.c +++ b/drivers/infiniband/hw/efa/efa_verbs.c @@ -272,6 +272,9 @@ int efa_query_device(struct ib_device *ibdev, if (EFA_DEV_CAP(dev, EVENT_COUNTERS)) resp.device_caps |= EFA_QUERY_DEVICE_CAPS_COMP_CNTR; + if (EFA_DEV_CAP(dev, SQ_64_BIT_REQ_ID)) + resp.device_caps |= EFA_QUERY_DEVICE_CAPS_SQ_64_BIT_REQ_ID; + if (dev->neqs) resp.device_caps |= EFA_QUERY_DEVICE_CAPS_CQ_NOTIFICATIONS; diff --git a/include/uapi/rdma/efa-abi.h b/include/uapi/rdma/efa-abi.h index 5d3d01b6333e..2094b4bcc5cf 100644 --- a/include/uapi/rdma/efa-abi.h +++ b/include/uapi/rdma/efa-abi.h @@ -136,6 +136,7 @@ enum { EFA_QUERY_DEVICE_CAPS_UNSOLICITED_WRITE_RECV = 1 << 6, EFA_QUERY_DEVICE_CAPS_CQ_WITH_EXT_MEM = 1 << 7, EFA_QUERY_DEVICE_CAPS_COMP_CNTR = 1 << 8, + EFA_QUERY_DEVICE_CAPS_SQ_64_BIT_REQ_ID = 1 << 9, }; struct efa_ibv_ex_query_device_resp { |