RDMA/irdma: CQ size and shadow update changes for GEN3

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CQ shadow area should not be updated at the end of a page (once every
64th CQ entry), except when CQ has no more CQEs. SW must also increase
the requested CQ size by 1 and make sure the CQ is not exactly one page
in size. This is to address a quirk in the hardware.

Signed-off-by: Jay Bhat <jay.bhat@intel.com>
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Link: https://patch.msgid.link/20251031021726.1003-4-tatyana.e.nikolova@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

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This commit is contained in:

Jay Bhat 2025-10-30 21:17:23 -05:00 • committed by Leon Romanovsky

parent cd84d8001e

commit 0a19274555

5 changed files with 56 additions and 40 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

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1

drivers/infiniband/hw/irdma/main.h

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26

drivers/infiniband/hw/irdma/uk.c

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1

drivers/infiniband/hw/irdma/user.h

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52

drivers/infiniband/hw/irdma/utils.c

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16

drivers/infiniband/hw/irdma/verbs.c

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