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net: hns3: add compatible handling for command HCLGE_OPC_PF_RST_DONE 

Since old firmware does not support HCLGE_OPC_PF_RST_DONE, it will
return -EOPNOTSUPP to the driver when received this command. So
for this case, it should just print a warning and return success
to the caller.

Fixes: 72e2fb0799 ("net: hns3: clear reset interrupt status in hclge_irq_handle()")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Huazhong Tan 2019-11-07 09:30:19 +08:00 committed by David S. Miller
parent c78806f31f
commit 648db0514a
1 changed files with 17 additions and 1 deletions
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18
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
View File

@ -3587,12 +3587,28 @@ static int hclge_set_rst_done(struct hclge_dev *hdev)
{
struct hclge_pf_rst_done_cmd *req;
struct hclge_desc desc;
int ret;
req = (struct hclge_pf_rst_done_cmd *)desc.data;
hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_PF_RST_DONE, false);
req->pf_rst_done |= HCLGE_PF_RESET_DONE_BIT;
return hclge_cmd_send(&hdev->hw, &desc, 1);
ret = hclge_cmd_send(&hdev->hw, &desc, 1);
/* To be compatible with the old firmware, which does not support
* command HCLGE_OPC_PF_RST_DONE, just print a warning and
* return success
*/
if (ret == -EOPNOTSUPP) {
dev_warn(&hdev->pdev->dev,
"current firmware does not support command(0x%x)!\n",
HCLGE_OPC_PF_RST_DONE);
return 0;
} else if (ret) {
dev_err(&hdev->pdev->dev, "assert PF reset done fail %d!\n",
ret);
}
return ret;
}
static int hclge_reset_prepare_up(struct hclge_dev *hdev)