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From: Weihang Li <liweihang@huawei.com>
To: <dledford@redhat.com>, <jgg@nvidia.com>
Cc: <leon@kernel.org>, <linux-rdma@vger.kernel.org>,
	<linuxarm@huawei.com>, "Xi Wang" <wangxi11@huawei.com>,
	Weihang Li <liweihang@huawei.com>
Subject: [PATCH for-next] RDMA/hns: Clear extended doorbell info before using
Date: Wed, 9 Jun 2021 19:11:05 +0800	[thread overview]
Message-ID: <1623237065-43344-1-git-send-email-liweihang@huawei.com> (raw)

From: Xi Wang <wangxi11@huawei.com>

Both of HIP08 and HIP09 require the extended doorbell information to be
cleared before being used.

Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 16 ++++++++++++++++
 drivers/infiniband/hw/hns/hns_roce_hw_v2.h |  1 +
 2 files changed, 17 insertions(+)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index fbc45b9..c5d2cfb 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -1572,6 +1572,20 @@ static void hns_roce_function_clear(struct hns_roce_dev *hr_dev)
 	}
 }
 
+static void hns_roce_clear_extdb_list_info(struct hns_roce_dev *hr_dev)
+{
+	struct hns_roce_cmq_desc desc;
+	int ret;
+
+	hns_roce_cmq_setup_basic_desc(&desc, HNS_ROCE_OPC_CLEAR_EXTDB_LIST_INFO,
+				      false);
+	ret = hns_roce_cmq_send(hr_dev, &desc, 1);
+	if (ret)
+		ibdev_warn(&hr_dev->ib_dev,
+			   "failed to clear extended doorbell info, ret = %d.\n",
+			   ret);
+}
+
 static int hns_roce_query_fw_ver(struct hns_roce_dev *hr_dev)
 {
 	struct hns_roce_query_fw_info *resp;
@@ -2684,6 +2698,8 @@ static int hns_roce_v2_init(struct hns_roce_dev *hr_dev)
 	if (ret)
 		return ret;
 
+	/* The hns ROCEE requires the extdb info to be cleared before using */
+	hns_roce_clear_extdb_list_info(hr_dev);
 	if (hr_dev->is_vf)
 		return 0;
 
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.h b/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
index cd361c0..073e835 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
@@ -250,6 +250,7 @@ enum hns_roce_opcode_type {
 	HNS_ROCE_OPC_CLR_SCCC				= 0x8509,
 	HNS_ROCE_OPC_QUERY_SCCC				= 0x850a,
 	HNS_ROCE_OPC_RESET_SCCC				= 0x850b,
+	HNS_ROCE_OPC_CLEAR_EXTDB_LIST_INFO		= 0x850d,
 	HNS_ROCE_OPC_QUERY_VF_RES			= 0x850e,
 	HNS_ROCE_OPC_CFG_GMV_TBL			= 0x850f,
 	HNS_ROCE_OPC_CFG_GMV_BT				= 0x8510,
-- 
2.7.4


             reply	other threads:[~2021-06-09 11:11 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-09 11:11 Weihang Li [this message]
2021-06-09 13:44 ` [PATCH for-next] RDMA/hns: Clear extended doorbell info before using Leon Romanovsky
2021-06-10  6:26   ` liweihang

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