diff mbox series

[net,4/8] bnxt_en: Fix PCI AER error recovery flow

Message ID 1598418519-20168-5-git-send-email-michael.chan@broadcom.com
State Accepted
Delegated to: David Miller
Headers show
Series bnxt_en: Bug fixes. | expand

Commit Message

Michael Chan Aug. 26, 2020, 5:08 a.m. UTC 
From: Vasundhara Volam <vasundhara-v.volam@broadcom.com>

When a PCI error is detected the PCI state could be corrupt, save
the PCI state after initialization and restore it after the slot
reset.

Fixes: 6316ea6db93d ("bnxt_en: Enable AER support.")
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 31fb5a2..4389a74 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -12339,6 +12339,7 @@  static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		    (long)pci_resource_start(pdev, 0), dev->dev_addr);
 	pcie_print_link_status(pdev);
 
+	pci_save_state(pdev);
 	return 0;
 
 init_err_cleanup:
@@ -12536,6 +12537,8 @@  static pci_ers_result_t bnxt_io_slot_reset(struct pci_dev *pdev)
 			"Cannot re-enable PCI device after reset.\n");
 	} else {
 		pci_set_master(pdev);
+		pci_restore_state(pdev);
+		pci_save_state(pdev);
 
 		err = bnxt_hwrm_func_reset(bp);
 		if (!err) {