diff options
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index 7dbab29da212..ab90108db1c9 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -2374,6 +2374,8 @@ static int hclge_reset_wait(struct hclge_dev *hdev) reg = HCLGE_FUN_RST_ING; reg_bit = HCLGE_FUN_RST_ING_B; break; + case HNAE3_FLR_RESET: + break; default: dev_err(&hdev->pdev->dev, "Wait for unsupported reset type: %d\n", @@ -2381,6 +2383,20 @@ static int hclge_reset_wait(struct hclge_dev *hdev) return -EINVAL; } + if (hdev->reset_type == HNAE3_FLR_RESET) { + while (!test_bit(HNAE3_FLR_DONE, &hdev->flr_state) && + cnt++ < HCLGE_RESET_WAIT_CNT) + msleep(HCLGE_RESET_WATI_MS); + + if (!test_bit(HNAE3_FLR_DONE, &hdev->flr_state)) { + dev_err(&hdev->pdev->dev, + "flr wait timeout: %d\n", cnt); + return -EBUSY; + } + + return 0; + } + val = hclge_read_dev(&hdev->hw, reg); while (hnae3_get_bit(val, reg_bit) && cnt < HCLGE_RESET_WAIT_CNT) { msleep(HCLGE_RESET_WATI_MS); @@ -2488,6 +2504,12 @@ static void hclge_do_reset(struct hclge_dev *hdev) set_bit(HNAE3_FUNC_RESET, &hdev->reset_pending); hclge_reset_task_schedule(hdev); break; + case HNAE3_FLR_RESET: + dev_info(&pdev->dev, "FLR requested\n"); + /* schedule again to check later */ + set_bit(HNAE3_FLR_RESET, &hdev->reset_pending); + hclge_reset_task_schedule(hdev); + break; default: dev_warn(&pdev->dev, "Unsupported reset type: %d\n", hdev->reset_type); @@ -2519,6 +2541,9 @@ static enum hnae3_reset_type hclge_get_reset_level(struct hclge_dev *hdev, } else if (test_bit(HNAE3_FUNC_RESET, addr)) { rst_level = HNAE3_FUNC_RESET; clear_bit(HNAE3_FUNC_RESET, addr); + } else if (test_bit(HNAE3_FLR_RESET, addr)) { + rst_level = HNAE3_FLR_RESET; + clear_bit(HNAE3_FLR_RESET, addr); } return rst_level; @@ -2555,6 +2580,8 @@ static int hclge_reset_prepare_down(struct hclge_dev *hdev) switch (hdev->reset_type) { case HNAE3_FUNC_RESET: + /* fall through */ + case HNAE3_FLR_RESET: ret = hclge_set_all_vf_rst(hdev, true); break; default: @@ -2589,6 +2616,14 @@ static int hclge_reset_prepare_wait(struct hclge_dev *hdev) */ set_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state); break; + case HNAE3_FLR_RESET: + /* There is no mechanism for PF to know if VF has stopped IO + * for now, just wait 100 ms for VF to stop IO + */ + msleep(100); + set_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state); + set_bit(HNAE3_FLR_DOWN, &hdev->flr_state); + break; case HNAE3_IMP_RESET: reg_val = hclge_read_dev(&hdev->hw, HCLGE_PF_OTHER_INT_REG); hclge_write_dev(&hdev->hw, HCLGE_PF_OTHER_INT_REG, @@ -2647,6 +2682,8 @@ static int hclge_reset_prepare_up(struct hclge_dev *hdev) switch (hdev->reset_type) { case HNAE3_FUNC_RESET: + /* fall through */ + case HNAE3_FLR_RESET: ret = hclge_set_all_vf_rst(hdev, false); break; default: @@ -6917,6 +6954,34 @@ static void hclge_state_uninit(struct hclge_dev *hdev) cancel_work_sync(&hdev->mbx_service_task); } +static void hclge_flr_prepare(struct hnae3_ae_dev *ae_dev) +{ +#define HCLGE_FLR_WAIT_MS 100 +#define HCLGE_FLR_WAIT_CNT 50 + struct hclge_dev *hdev = ae_dev->priv; + int cnt = 0; + + clear_bit(HNAE3_FLR_DOWN, &hdev->flr_state); + clear_bit(HNAE3_FLR_DONE, &hdev->flr_state); + set_bit(HNAE3_FLR_RESET, &hdev->default_reset_request); + hclge_reset_event(hdev->pdev, NULL); + + while (!test_bit(HNAE3_FLR_DOWN, &hdev->flr_state) && + cnt++ < HCLGE_FLR_WAIT_CNT) + msleep(HCLGE_FLR_WAIT_MS); + + if (!test_bit(HNAE3_FLR_DOWN, &hdev->flr_state)) + dev_err(&hdev->pdev->dev, + "flr wait down timeout: %d\n", cnt); +} + +static void hclge_flr_done(struct hnae3_ae_dev *ae_dev) +{ + struct hclge_dev *hdev = ae_dev->priv; + + set_bit(HNAE3_FLR_DONE, &hdev->flr_state); +} + static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev) { struct pci_dev *pdev = ae_dev->pdev; @@ -7575,6 +7640,8 @@ static void hclge_get_link_mode(struct hnae3_handle *handle, static const struct hnae3_ae_ops hclge_ops = { .init_ae_dev = hclge_init_ae_dev, .uninit_ae_dev = hclge_uninit_ae_dev, + .flr_prepare = hclge_flr_prepare, + .flr_done = hclge_flr_done, .init_client_instance = hclge_init_client_instance, .uninit_client_instance = hclge_uninit_client_instance, .map_ring_to_vector = hclge_map_ring_to_vector, |