Commit 7e78dd81 authored by Xi Wang's avatar Xi Wang Committed by Jason Gunthorpe
Browse files

RDMA/hns: Clear extended doorbell info before using 

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

Fixes: 6b63597d ("RDMA/hns: Add TSQ link table support")
Link: https://lore.kernel.org/r/1623392089-35639-1-git-send-email-liweihang@huawei.com


Signed-off-by: default avatarXi Wang <wangxi11@huawei.com>
Signed-off-by: default avatarWeihang Li <liweihang@huawei.com>
Reviewed-by: default avatarLeon Romanovsky <leonro@nvidia.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
parent a95fbe2a

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

+21 −0
Original line number Diff line number Diff line
@@ -1572,6 +1572,22 @@ 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;
@@ -2756,6 +2772,11 @@ static int hns_roce_v2_init(struct hns_roce_dev *hr_dev) 
{

	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;

drivers/infiniband/hw/hns/hns_roce_hw_v2.h

+1 −0
Original line number Diff line number Diff line
@@ -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,