From 221109e64316e089b79e604adaec9057e0c4785a Mon Sep 17 00:00:00 2001 From: Yangyang Li Date: Sat, 19 Sep 2020 18:03:16 +0800 Subject: [PATCH] RDMA/hns: Add interception for resizing SRQs 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: ffb1308b88b6 ("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 Signed-off-by: Weihang Li Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index 00d7cc9f107d..b7605a967860 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -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; -- GitLab