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RDMA/hns: Add interception for resizing SRQs

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HIP08 doesn't support modifying the maximum number of outstanding WR in an
SRQ. However, the driver does not return a failure message, and users may
mistakenly think that the resizing is executed successfully. So the driver
needs to intercept this operation.

Fixes: ffb1308b88 ("RDMA/hns: Move SRQ code to the reasonable place")
Link: https://lore.kernel.org/r/1600509802-44382-3-git-send-email-liweihang@huawei.com
Signed-off-by: Yangyang Li <liyangyang20@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Yangyang Li 2020-09-19 18:03:16 +08:00 committed by Jason Gunthorpe
parent 12542f1de1
commit 221109e643
1 changed files with 4 additions and 0 deletions
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4
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
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@ -5118,6 +5118,10 @@ static int hns_roce_v2_modify_srq(struct ib_srq *ibsrq,
struct hns_roce_cmd_mailbox *mailbox;
int ret;
/* Resizing SRQs is not supported yet */
if (srq_attr_mask & IB_SRQ_MAX_WR)
return -EINVAL;
if (srq_attr_mask & IB_SRQ_LIMIT) {
if (srq_attr->srq_limit >= srq->wqe_cnt)
return -EINVAL;