From a8dedb65926005e99ab23716b1c77586de83c4f4 Mon Sep 17 00:00:00 2001 From: Salil Mehta Date: Thu, 22 Mar 2018 14:28:55 +0000 Subject: [PATCH] net: hns3: Add support to request VF Reset to PF 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 Signed-off-by: David S. Miller --- .../net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c index 0d204e2..b648311 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c @@ -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"); } } -- 2.7.4