[PATCH net-next 04/12] net: hns3: add recovery for the H/W errors occurred before the HNS dev initialization
From: Huazhong Tan <hidden>
Date: 2019-06-13 15:49:58
Also in:
lkml
Subsystem:
hisilicon network subsystem 3 driver (hns3), hisilicon network subsystem driver, networking drivers, the rest · Maintainers:
Jian Shen, Jijie Shao, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Shiju Jose <redacted> This patch adds the recovery for the HNS H/W errors which occurred before the driver initialization. Reported-by: Salil Mehta <redacted> Signed-off-by: Shiju Jose <redacted> Signed-off-by: Peng Li <redacted> Signed-off-by: Huazhong Tan <redacted> --- drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index d9863c30..6761d72 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c@@ -3236,6 +3236,7 @@ static bool hclge_reset_err_handle(struct hclge_dev *hdev, bool is_timeout) dev_info(&hdev->pdev->dev, "Upgrade reset level\n"); hclge_clear_reset_cause(hdev); + set_bit(HNAE3_GLOBAL_RESET, &hdev->default_reset_request); mod_timer(&hdev->reset_timer, jiffies + HCLGE_RESET_INTERVAL);
@@ -3430,8 +3431,7 @@ static void hclge_reset_timer(struct timer_list *t) struct hclge_dev *hdev = from_timer(hdev, t, reset_timer); dev_info(&hdev->pdev->dev, - "triggering global reset in reset timer\n"); - set_bit(HNAE3_GLOBAL_RESET, &hdev->default_reset_request); + "triggering reset in reset timer\n"); hclge_reset_event(hdev->pdev, NULL); }
@@ -8614,6 +8614,18 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev) /* Log and clear the hw errors those already occurred */ hclge_handle_all_hns_hw_errors(ae_dev); + /* request delayed reset for the error recovery because an immediate + * global reset on a PF affecting pending initialization of other PFs + */ + if (ae_dev->hw_err_reset_req) { + enum hnae3_reset_type reset_level; + + reset_level = hclge_get_reset_level(ae_dev, + &ae_dev->hw_err_reset_req); + hclge_set_def_reset_request(ae_dev, reset_level); + mod_timer(&hdev->reset_timer, jiffies + HCLGE_RESET_INTERVAL); + } + /* Enable MISC vector(vector0) */ hclge_enable_vector(&hdev->misc_vector, true);
--
2.7.4