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RDMA/hns: Initialize all fields of doorbells to zero

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Prevent uninitialized fields when new fields are added, and make code look
simpler.

Link: https://lore.kernel.org/r/1582162471-50361-1-git-send-email-liweihang@huawei.com
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Lang Cheng
2020-02-20 09:34:31 +08:00
committed by Jason Gunthorpe
parent 8d8d2b76ac
commit 52c5e9e749
2 changed files with 3 additions and 11 deletions
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9
drivers/infiniband/hw/hns/hns_roce_hw_v1.c
View File

@@ -69,7 +69,7 @@ static int hns_roce_v1_post_send(struct ib_qp *ibqp,
struct hns_roce_wqe_data_seg *dseg = NULL;
struct hns_roce_qp *qp = to_hr_qp(ibqp);
struct device *dev = &hr_dev->pdev->dev;
struct hns_roce_sq_db sq_db;
struct hns_roce_sq_db sq_db = {};
int ps_opcode = 0, i = 0;
unsigned long flags = 0;
void *wqe = NULL;
@@ -318,8 +318,6 @@ static int hns_roce_v1_post_send(struct ib_qp *ibqp,
/* Memory barrier */
wmb();
sq_db.u32_4 = 0;
sq_db.u32_8 = 0;
roce_set_field(sq_db.u32_4, SQ_DOORBELL_U32_4_SQ_HEAD_M,
SQ_DOORBELL_U32_4_SQ_HEAD_S,
(qp->sq.head & ((qp->sq.wqe_cnt << 1) - 1)));
@@ -351,7 +349,7 @@ static int hns_roce_v1_post_recv(struct ib_qp *ibqp,
struct hns_roce_qp *hr_qp = to_hr_qp(ibqp);
struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device);
struct device *dev = &hr_dev->pdev->dev;
struct hns_roce_rq_db rq_db;
struct hns_roce_rq_db rq_db = {};
__le32 doorbell[2] = {0};
unsigned long flags = 0;
unsigned int wqe_idx;
@@ -418,9 +416,6 @@ static int hns_roce_v1_post_recv(struct ib_qp *ibqp,
ROCEE_QP1C_CFG3_0_REG +
QP1C_CFGN_OFFSET * hr_qp->phy_port, reg_val);
} else {
rq_db.u32_4 = 0;
rq_db.u32_8 = 0;
roce_set_field(rq_db.u32_4, RQ_DOORBELL_U32_4_RQ_HEAD_M,
RQ_DOORBELL_U32_4_RQ_HEAD_S,
hr_qp->rq.head);

5
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
View File

@@ -255,7 +255,7 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp,
struct hns_roce_qp *qp = to_hr_qp(ibqp);
struct hns_roce_wqe_frmr_seg *fseg;
struct device *dev = hr_dev->dev;
struct hns_roce_v2_db sq_db;
struct hns_roce_v2_db sq_db = {};
unsigned int owner_bit;
unsigned int sge_idx;
unsigned int wqe_idx;
@@ -583,9 +583,6 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp,
/* Memory barrier */
wmb();
sq_db.byte_4 = 0;
sq_db.parameter = 0;
roce_set_field(sq_db.byte_4, V2_DB_BYTE_4_TAG_M,
V2_DB_BYTE_4_TAG_S, qp->doorbell_qpn);
roce_set_field(sq_db.byte_4, V2_DB_BYTE_4_CMD_M,