RDMA/efa: Add support for 128B admin v2 SQ entry

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Add the new admin v2 format which is 128B in size and its header extends
the v1 header with checksum and payload version.
On admin SQ init check if the API version reported by the device
supports the admin v2 SQ entry and if so use it. Store the payload
offset and max size in the SQ for quick access in admin command
execution flow.

Using the admin SQ v2 entry implicitly enable the checksum in its
header so set it for device to validate against.

Link: https://patch.msgid.link/r/20260812121718.2904349-4-ynachum@amazon.com
Reviewed-by: Michael Margolin <mrgolin@amazon.com>
Reviewed-by: Tom Sela <tomsela@amazon.com>
Signed-off-by: Yonatan Nachum <ynachum@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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This commit is contained in:

Yonatan Nachum 2026-08-12 12:17:18 +00:00 • committed by Jason Gunthorpe

parent bbbc5fe12d

commit d87924b995

3 changed files with 116 additions and 32 deletions

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29

drivers/infiniband/hw/efa/efa_admin_defs.h

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113

drivers/infiniband/hw/efa/efa_com.c

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6

drivers/infiniband/hw/efa/efa_com.h

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