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net/mlx5: Do not query pci info while pci disabled

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The driver should not interact with PCI while PCI is disabled. Trying to
do so may result in being unable to get vital signs during PCI reset,
driver gets timed out and fails to recover.

Fixes: fad1783a6d ("net/mlx5: Print more info on pci error handlers")
Signed-off-by: Roy Novich <royno@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Aya Levin <ayal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Roy Novich 2022-07-24 09:49:07 +03:00 committed by Saeed Mahameed
parent badbda1a01
commit 394164f9d5
1 changed files with 6 additions and 3 deletions
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9
drivers/net/ethernet/mellanox/mlx5/core/main.c
View file

@ -1798,7 +1798,8 @@ static pci_ers_result_t mlx5_pci_err_detected(struct pci_dev *pdev,
res = state == pci_channel_io_perm_failure ?
PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET;
mlx5_pci_trace(dev, "Exit, result = %d, %s\n", res, result2str(res));
mlx5_core_info(dev, "%s Device state = %d pci_status: %d. Exit, result = %d, %s\n",
__func__, dev->state, dev->pci_status, res, result2str(res));
return res;
}
@ -1837,7 +1838,8 @@ static pci_ers_result_t mlx5_pci_slot_reset(struct pci_dev *pdev)
struct mlx5_core_dev *dev = pci_get_drvdata(pdev);
int err;
mlx5_pci_trace(dev, "Enter\n");
mlx5_core_info(dev, "%s Device state = %d pci_status: %d. Enter\n",
__func__, dev->state, dev->pci_status);
err = mlx5_pci_enable_device(dev);
if (err) {
@ -1859,7 +1861,8 @@ static pci_ers_result_t mlx5_pci_slot_reset(struct pci_dev *pdev)
res = PCI_ERS_RESULT_RECOVERED;
out:
mlx5_pci_trace(dev, "Exit, err = %d, result = %d, %s\n", err, res, result2str(res));
mlx5_core_info(dev, "%s Device state = %d pci_status: %d. Exit, err = %d, result = %d, %s\n",
__func__, dev->state, dev->pci_status, err, res, result2str(res));
return res;
}