RDMA/mana_ib: Drain send wrs of GSI QP

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[ Upstream commit 44d69d3cf2 ]

Drain send WRs of the GSI QP on device removal.

In rare servicing scenarios, the hardware may delete the
state of the GSI QP, preventing it from generating CQEs
for pending send WRs. Since WRs submitted to the GSI QP
hold CM resources, the device cannot be removed until
those WRs are completed. This patch marks all pending
send WRs as failed, allowing the GSI QP to release the CM
resources and enabling safe device removal.

Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://patch.msgid.link/1753779618-23629-1-git-send-email-kotaranov@linux.microsoft.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Konstantin Taranov 2025-07-29 02:00:18 -07:00 • committed by Greg Kroah-Hartman

parent ac43d2e2bb

commit a259cd63b9

3 changed files with 32 additions and 0 deletions

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26

drivers/infiniband/hw/mana/cq.c

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3

drivers/infiniband/hw/mana/device.c

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3

drivers/infiniband/hw/mana/mana_ib.h

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