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| author | Yangyang Li <liyangyang20@huawei.com> | 2020-09-19 18:03:16 +0800 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-09-24 15:56:26 -0300 |
| commit | 221109e64316e089b79e604adaec9057e0c4785a (patch) | |
| tree | c83339f4ce48cf5851f49e1b94124dbfc5539bb1 /drivers/infiniband | |
| parent | 12542f1de179e5adf0701f63dff3506e5072c209 (diff) | |
| download | linux-stable-221109e64316e089b79e604adaec9057e0c4785a.tar.gz linux-stable-221109e64316e089b79e604adaec9057e0c4785a.tar.bz2 linux-stable-221109e64316e089b79e604adaec9057e0c4785a.zip | |
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 <liyangyang20@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 4 |
1 files changed, 4 insertions, 0 deletions
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; |