RDMA/hns: Avoid unnecessary memset on WQEs in post_send

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All fields of WQE will be rewrote, so the memset is unnecessary. And when
SQ is working in OWNER mode, the pipeline may prefetch the WQEs beyond PI,
the memset operation may flip the owner bit too early, then the pipeline
may get a wrong WQ.

Link: https://lore.kernel.org/r/1612517974-31867-11-git-send-email-liweihang@huawei.com
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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Lang Cheng 2021-02-05 17:39:32 +08:00 • committed by Jason Gunthorpe

parent 993703370a

commit 62490fd5a8

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drivers/infiniband/hw/hns/hns_roce_hw_v2.c

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