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RDMA/hns: Let software PI/CI grow naturally 

The hardware can truncate PI/CI when posting or polling, the driver does
not need to do truncation. Therefore keep the software's PI/CI consistent
with it in the hardware.

Link: https://lore.kernel.org/r/1589982799-28728-2-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 2020-05-20 21:53:11 +08:00 committed by Jason Gunthorpe
parent a94dae867c
commit 25966e8931
1 changed files with 4 additions and 5 deletions
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9
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
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@ -500,8 +500,7 @@ static inline void update_sq_db(struct hns_roce_dev *hr_dev,
roce_set_field(sq_db.byte_4, V2_DB_BYTE_4_CMD_M,
V2_DB_BYTE_4_CMD_S, HNS_ROCE_V2_SQ_DB);
roce_set_field(sq_db.parameter, V2_DB_PARAMETER_IDX_M,
V2_DB_PARAMETER_IDX_S,
qp->sq.head & ((qp->sq.wqe_cnt << 1) - 1));
V2_DB_PARAMETER_IDX_S, qp->sq.head);
roce_set_field(sq_db.parameter, V2_DB_PARAMETER_SL_M,
V2_DB_PARAMETER_SL_S, qp->sl);
@ -807,7 +806,8 @@ static int hns_roce_v2_post_srq_recv(struct ib_srq *ibsrq,
srq_db.byte_4 =
cpu_to_le32(HNS_ROCE_V2_SRQ_DB << V2_DB_BYTE_4_CMD_S |
(srq->srqn & V2_DB_BYTE_4_TAG_M));
srq_db.parameter = cpu_to_le32(srq->head);
srq_db.parameter =
cpu_to_le32(srq->head & V2_DB_PARAMETER_IDX_M);
hns_roce_write64(hr_dev, (__le32 *)&srq_db, srq->db_reg_l);
}
@ -2940,8 +2940,7 @@ static int hns_roce_v2_req_notify_cq(struct ib_cq *ibcq,
roce_set_field(doorbell[0], V2_CQ_DB_BYTE_4_CMD_M, V2_DB_BYTE_4_CMD_S,
HNS_ROCE_V2_CQ_DB_NTR);
roce_set_field(doorbell[1], V2_CQ_DB_PARAMETER_CONS_IDX_M,
V2_CQ_DB_PARAMETER_CONS_IDX_S,
hr_cq->cons_index & ((hr_cq->cq_depth << 1) - 1));
V2_CQ_DB_PARAMETER_CONS_IDX_S, hr_cq->cons_index);
roce_set_field(doorbell[1], V2_CQ_DB_PARAMETER_CMD_SN_M,
V2_CQ_DB_PARAMETER_CMD_SN_S, hr_cq->arm_sn & 0x3);
roce_set_bit(doorbell[1], V2_CQ_DB_PARAMETER_NOTIFY_S,