From: Xi Wang <wangxi11@xxxxxxxxxx>
[ Upstream commit 7e78dd816e458fbc2928a068d70009178d5d070d ]
Both of HIP08 and HIP09 require the extended doorbell information to be
cleared before being used.
Fixes: 6b63597d3540 ("RDMA/hns: Add TSQ link table support")
Link: https://lore.kernel.org/r/1623392089-35639-1-git-send-email-liweihang@xxxxxxxxxx
Signed-off-by: Xi Wang <wangxi11@xxxxxxxxxx>
Signed-off-by: Weihang Li <liweihang@xxxxxxxxxx>
Reviewed-by: Leon Romanovsky <leonro@xxxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 21 +++++++++++++++++++++
drivers/infiniband/hw/hns/hns_roce_hw_v2.h | 1 +
2 files changed, 22 insertions(+)
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index d7289b6587f1..78f3e05cc1f5 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -1619,6 +1619,22 @@ static void hns_roce_function_clear(struct hns_roce_dev *hr_dev)
}
}
+static int 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_err(&hr_dev->ib_dev,
+ "failed to clear extended doorbell info, ret = %d.\n",
+ ret);
+
+ return ret;
+}
+
static int hns_roce_query_fw_ver(struct hns_roce_dev *hr_dev)
{
struct hns_roce_query_fw_info *resp;
@@ -2732,6 +2748,11 @@ static int hns_roce_v2_init(struct hns_roce_dev *hr_dev)
struct hns_roce_v2_priv *priv = hr_dev->priv;
int ret;
+ /* The hns ROCEE requires the extdb info to be cleared before using */
+ ret = hns_roce_clear_extdb_list_info(hr_dev);
+ if (ret)
+ return ret;
+
ret = get_hem_table(hr_dev);
if (ret)
return ret;
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.h b/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
index a2100a629859..028bc41cb45c 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
@@ -248,6 +248,7 @@ 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,
--
2.30.2
