Chengchang Tang 7d9616110b RDMA/hns: Disassociate mmap pages for all uctx when HW is being reset ...

[ Upstream commit 615b94746a ]

When HW is being reset, userspace should not ring doorbell otherwise
it may lead to abnormal consequence such as RAS.

Disassociate mmap pages for all uctx to prevent userspace from ringing
doorbell to HW. Since all resources will be destroyed during HW reset,
no new mmap is allowed after HW reset is completed.

Fixes: 9a4435375c ("IB/hns: Add driver files for hns RoCE driver")
Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Link: https://patch.msgid.link/20240927103323.1897094-3-huangjunxian6@hisilicon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-12-05 14:02:02 +01:00

..

core

RDMA/core: Provide rdma_user_mmap_disassociate() to disassociate mmap pages

2024-12-05 14:02:02 +01:00

hw

RDMA/hns: Disassociate mmap pages for all uctx when HW is being reset

2024-12-05 14:02:02 +01:00

sw

RDMA/siw: Add sendpage_ok() check to disable MSG_SPLICE_PAGES

2024-10-11 13:55:53 -03:00

ulp

RDMA/srpt: Make slab cache names unique

2024-10-11 14:07:33 -03:00

Kconfig

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Makefile

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