RDMA/hns: Bugfix for checking whether the srq is full when post wr

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If a user posts WR by wr_list, the head pointer of idx_queue won't be
updated until all wqes are filled, so the judgment of whether head equals
to tail will get a wrong result. Fix above issue and move the head and
tail pointer from the srq structure into the idx_queue structure. After
idx_queue is filled with wqe idx, the head pointer of it will increase.

Fixes: c7bcb13442 ("RDMA/hns: Add SRQ support for hip08 kernel mode")
Link: https://lore.kernel.org/r/1611997090-48820-3-git-send-email-liweihang@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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Wenpeng Liang 2021-01-30 16:58:00 +08:00 • committed by Jason Gunthorpe

parent 9dd052474a

commit 1620f09b96

3 changed files with 19 additions and 9 deletions

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4

drivers/infiniband/hw/hns/hns_roce_device.h

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19

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

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5

drivers/infiniband/hw/hns/hns_roce_srq.c

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