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RDMA/hns: Encapsulate some lines for setting sq size in user mode

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It needs to check the sq size with integrity when configures
the relatived parameters of sq. Here moves the relatived code
into a special function.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Link: https://lore.kernel.org/r/1565276034-97329-2-git-send-email-oulijun@huawei.com
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Lijun Ou 2019-08-08 22:53:41 +08:00 committed by Doug Ledford
parent a3e2d4c7e7
commit cc95b23c25
1 changed files with 22 additions and 7 deletions
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29
drivers/infiniband/hw/hns/hns_roce_qp.c
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@ -324,16 +324,12 @@ static int hns_roce_set_rq_size(struct hns_roce_dev *hr_dev,
return 0;
}
static int hns_roce_set_user_sq_size(struct hns_roce_dev *hr_dev,
struct ib_qp_cap *cap,
struct hns_roce_qp *hr_qp,
struct hns_roce_ib_create_qp *ucmd)
static int check_sq_size_with_integrity(struct hns_roce_dev *hr_dev,
struct ib_qp_cap *cap,
struct hns_roce_ib_create_qp *ucmd)
{
u32 roundup_sq_stride = roundup_pow_of_two(hr_dev->caps.max_sq_desc_sz);
u8 max_sq_stride = ilog2(roundup_sq_stride);
u32 ex_sge_num;
u32 page_size;
u32 max_cnt;
/* Sanity check SQ size before proceeding */
if ((u32)(1 << ucmd->log_sq_bb_count) > hr_dev->caps.max_wqes ||
@ -349,6 +345,25 @@ static int hns_roce_set_user_sq_size(struct hns_roce_dev *hr_dev,
return -EINVAL;
}
return 0;
}
static int hns_roce_set_user_sq_size(struct hns_roce_dev *hr_dev,
struct ib_qp_cap *cap,
struct hns_roce_qp *hr_qp,
struct hns_roce_ib_create_qp *ucmd)
{
u32 ex_sge_num;
u32 page_size;
u32 max_cnt;
int ret;
ret = check_sq_size_with_integrity(hr_dev, cap, ucmd);
if (ret) {
ibdev_err(&hr_dev->ib_dev, "Sanity check sq size failed\n");
return ret;
}
hr_qp->sq.wqe_cnt = 1 << ucmd->log_sq_bb_count;
hr_qp->sq.wqe_shift = ucmd->log_sq_stride;