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net: hns3: Add support to request VF Reset to PF

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VF driver depends upon PF to eventually reset the hardware. This
request is made using the mailbox command. This patch adds the
required function to acheive above.

Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Salil Mehta 2018-03-22 14:28:55 +00:00 committed by David S. Miller
parent 436667d2e1
commit a8dedb6592
1 changed files with 19 additions and 0 deletions
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19
drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
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@ -832,6 +832,20 @@ static void hclgevf_reset_tqp(struct hnae3_handle *handle, u16 queue_id)
2, true, NULL, 0);
}
static int hclgevf_do_reset(struct hclgevf_dev *hdev)
{
int status;
u8 respmsg;
status = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_RESET, 0, NULL,
0, false, &respmsg, sizeof(u8));
if (status)
dev_err(&hdev->pdev->dev,
"VF reset request to PF failed(=%d)\n", status);
return status;
}
static void hclgevf_reset_event(struct hnae3_handle *handle)
{
struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
@ -910,6 +924,7 @@ static void hclgevf_reset_service_task(struct work_struct *work)
{
struct hclgevf_dev *hdev =
container_of(work, struct hclgevf_dev, rst_service_task);
int ret;
if (test_and_set_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state))
return;
@ -965,6 +980,10 @@ static void hclgevf_reset_service_task(struct work_struct *work)
hdev->reset_attempts++;
/* request PF for resetting this VF via mailbox */
ret = hclgevf_do_reset(hdev);
if (ret)
dev_warn(&hdev->pdev->dev,
"VF rst fail, stack will call\n");
}
}