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RDMA/hns: Add judgment on the execution result of CMDQ that free vf resource

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CDMQ may fail to execute, so its return value should not be ignored.

Link: https://lore.kernel.org/r/20220409083254.9696-5-liangwenpeng@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Wenpeng Liang
2022-04-09 16:32:53 +08:00
committed by Jason Gunthorpe
parent 601cdd861c
commit ac88da750f
1 changed files with 13 additions and 4 deletions
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17
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
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@@ -1510,7 +1510,7 @@ static void __hns_roce_function_clear(struct hns_roce_dev *hr_dev, int vf_id)
hns_roce_func_clr_rst_proc(hr_dev, ret, fclr_write_fail_flag);
}
static void hns_roce_free_vf_resource(struct hns_roce_dev *hr_dev, int vf_id)
static int hns_roce_free_vf_resource(struct hns_roce_dev *hr_dev, int vf_id)
{
enum hns_roce_opcode_type opcode = HNS_ROCE_OPC_ALLOC_VF_RES;
struct hns_roce_cmq_desc desc[2];
@@ -1521,17 +1521,26 @@ static void hns_roce_free_vf_resource(struct hns_roce_dev *hr_dev, int vf_id)
desc[0].flag |= cpu_to_le16(HNS_ROCE_CMD_FLAG_NEXT);
hns_roce_cmq_setup_basic_desc(&desc[1], opcode, false);
hr_reg_write(req_a, FUNC_RES_A_VF_ID, vf_id);
hns_roce_cmq_send(hr_dev, desc, 2);
return hns_roce_cmq_send(hr_dev, desc, 2);
}
static void hns_roce_function_clear(struct hns_roce_dev *hr_dev)
{
int ret;
int i;
for (i = hr_dev->func_num - 1; i >= 0; i--) {
__hns_roce_function_clear(hr_dev, i);
if (i != 0)
hns_roce_free_vf_resource(hr_dev, i);
if (i == 0)
continue;
ret = hns_roce_free_vf_resource(hr_dev, i);
if (ret)
ibdev_err(&hr_dev->ib_dev,
"failed to free vf resource, vf_id = %d, ret = %d.\n",
i, ret);
}
}