RDMA/hns: Remove redundant operations on CMDQ

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CMDQ works serially, after each successful transmission, the head and tail
pointers will be equal, so there is no need to check whether the queue is
full. At the same time, since the descriptor of each transmission is new,
there is no need to perform a cleanup operation. Then, the field named
next_to_clean in structure hns_roce_v2_cmq_ring is redundant.

Fixes: a04ff739f2 ("RDMA/hns: Add command queue support for hip08 RoCE driver")
Link: https://lore.kernel.org/r/1612688143-28226-4-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 2021-02-07 16:55:41 +08:00 • committed by Jason Gunthorpe

parent 8f86e2eada

commit 563aeb2266

2 changed files with 5 additions and 50 deletions

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54

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

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1

drivers/infiniband/hw/hns/hns_roce_hw_v2.h

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