RDMA/hns: Fix init failure of RoCE VF and HIP08

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[ Upstream commit 07f06e0e5c ]

During device init, a struct for HW stats will be allocated. As HW
stats are not supported for VF and HIP08, currently
hns_roce_alloc_hw_port_stats() returns NULL in this case. However,
ib-core considers the returned NULL pointer as memory allocation
failure and returns ENOMEM, eventually leading to the failure of VF
and HIP08 init.

In the case where the driver does not support the .alloc_hw_port_stats()
ops, ib-core will return EOPNOTSUPP and ignore this error code in the
upper layer function. So for VF and HIP08, just don't set the HW stats
ops to ib-core.

Fixes: 5a87279591 ("RDMA/hns: Support hns HW stats")
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Link: https://lore.kernel.org/r/20231017125239.164455-8-huangjunxian6@hisilicon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Junxian Huang 2023-10-17 20:52:39 +08:00 • committed by Greg Kroah-Hartman

parent 1210137c7f

commit cd294f7c60

1 changed files with 9 additions and 10 deletions

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drivers/infiniband/hw/hns/hns_roce_main.c

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