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RDMA/hns: Bugfix for filling the sge of srq 

When user post recv a srq with multiple sges, the hardware will get the
last correct sge and count the sge numbers according to the specific
identifier with lkey. For example, when the driver fills the sges with
every wr less than the max sge that the user configured when creating srq,
the hardware will stop getting the sge according to the specific lkey in
the sge. However, it will always end with the first sge in the current
post srq recv interface implementation.

Fixes: c7bcb13442 ("RDMA/hns: Add SRQ support for hip08 kernel mode")
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Lijun Ou 2019-05-31 18:28:03 +08:00 committed by Jason Gunthorpe
parent fa027328a1
commit 4f18904c78
1 changed files with 3 additions and 3 deletions
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6
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
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@ -6048,9 +6048,9 @@ static int hns_roce_v2_post_srq_recv(struct ib_srq *ibsrq,
}
if (i < srq->max_gs) {
dseg->len = 0;
dseg->lkey = cpu_to_le32(0x100);
dseg->addr = 0;
dseg[i].len = 0;
dseg[i].lkey = cpu_to_le32(0x100);
dseg[i].addr = 0;
}
srq->wrid[wqe_idx] = wr->wr_id;