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IB/hns: Fix two possible bugs for rdma cm 

Fix the length of wqe that maybe lead to an error and
write the end bytes of QP1C into the register.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Reviewed-by: Wei Hu <xavier.huwei@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
hifive-unleashed-5.1
Lijun Ou 2016-09-15 23:48:09 +01:00 committed by Doug Ledford
parent a74aab6c2f
commit c24bf895c5
1 changed files with 4 additions and 6 deletions
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10
drivers/infiniband/hw/hns/hns_roce_hw_v1.c
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@ -205,8 +205,7 @@ int hns_roce_v1_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
(wr->send_flags & IB_SEND_FENCE ?
(cpu_to_le32(HNS_ROCE_WQE_FENCE)) : 0);
wqe = (struct hns_roce_wqe_ctrl_seg *)wqe +
sizeof(struct hns_roce_wqe_ctrl_seg);
wqe += sizeof(struct hns_roce_wqe_ctrl_seg);
switch (wr->opcode) {
case IB_WR_RDMA_READ:
@ -235,8 +234,7 @@ int hns_roce_v1_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
break;
}
ctrl->flag |= cpu_to_le32(ps_opcode);
wqe = (struct hns_roce_wqe_raddr_seg *)wqe +
sizeof(struct hns_roce_wqe_raddr_seg);
wqe += sizeof(struct hns_roce_wqe_raddr_seg);
dseg = wqe;
if (wr->send_flags & IB_SEND_INLINE && wr->num_sge) {
@ -253,8 +251,7 @@ int hns_roce_v1_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
memcpy(wqe, ((void *) (uintptr_t)
wr->sg_list[i].addr),
wr->sg_list[i].length);
wqe = (struct hns_roce_wqe_raddr_seg *)
wqe + wr->sg_list[i].length;
wqe += wr->sg_list[i].length;
}
ctrl->flag |= HNS_ROCE_WQE_INLINE;
} else {
@ -1795,6 +1792,7 @@ static int hns_roce_v1_m_sqp(struct ib_qp *ibqp, const struct ib_qp_attr *attr,
writel(context->qp1c_bytes_28, addr + 6);
writel(context->qp1c_bytes_32, addr + 7);
writel(context->cur_sq_wqe_ba_l, addr + 8);
writel(context->qp1c_bytes_40, addr + 9);
}
/* Modify QP1C status */