77 lines
2.0 KiB
Diff
77 lines
2.0 KiB
Diff
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From 2c11318d6a06ba6afd6efd91b2881b9fa05f35f6 Mon Sep 17 00:00:00 2001
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From: Chengchang Tang <tangchengchang@huawei.com>
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Date: Tue, 26 Sep 2023 19:19:09 +0800
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Subject: [PATCH 16/18] libhns: assign doorbell to zero when allocate it
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driver inclusion
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category: feature
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bugzilla: https://gitee.com/openeuler/kernel/issues/I98HQV
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--------------------------------------------------------------------------
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Clear the doorbell when getting it to avoid clearing it in each
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function that uses hns_roce_alloc_db()
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Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
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---
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providers/hns/hns_roce_u_db.c | 2 ++
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providers/hns/hns_roce_u_verbs.c | 8 --------
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2 files changed, 2 insertions(+), 8 deletions(-)
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diff --git a/providers/hns/hns_roce_u_db.c b/providers/hns/hns_roce_u_db.c
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index 0314254..bbef988 100644
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--- a/providers/hns/hns_roce_u_db.c
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+++ b/providers/hns/hns_roce_u_db.c
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@@ -116,6 +116,8 @@ found:
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out:
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pthread_mutex_unlock((pthread_mutex_t *)&ctx->db_list_mutex);
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+ if (db)
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+ *((unsigned int *)db) = 0;
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return db;
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}
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diff --git a/providers/hns/hns_roce_u_verbs.c b/providers/hns/hns_roce_u_verbs.c
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index 3f23715..69bcc13 100644
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--- a/providers/hns/hns_roce_u_verbs.c
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+++ b/providers/hns/hns_roce_u_verbs.c
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@@ -576,8 +576,6 @@ static struct ibv_cq_ex *create_cq(struct ibv_context *context,
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goto err_db;
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}
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- *cq->db = 0;
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-
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ret = hns_roce_init_cq_swc(cq, attr);
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if (ret)
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goto err_swc;
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@@ -921,8 +919,6 @@ static struct ibv_srq *create_srq(struct ibv_context *context,
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if (!srq->rdb)
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goto err_srq_buf;
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- *srq->rdb = 0;
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-
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ret = exec_srq_create_cmd(context, srq, init_attr);
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if (ret)
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goto err_srq_db;
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@@ -1505,8 +1501,6 @@ static int qp_alloc_db(struct ibv_qp_init_attr_ex *attr, struct hns_roce_qp *qp,
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qp->sdb = hns_roce_alloc_db(ctx, HNS_ROCE_QP_TYPE_DB);
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if (!qp->sdb)
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return -ENOMEM;
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-
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- *qp->sdb = 0;
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}
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if (attr->cap.max_recv_sge) {
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@@ -1518,8 +1512,6 @@ static int qp_alloc_db(struct ibv_qp_init_attr_ex *attr, struct hns_roce_qp *qp,
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return -ENOMEM;
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}
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-
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- *qp->rdb = 0;
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}
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return 0;
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--
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2.33.0
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