Commit ba13c07c authored Aug 26, 2020 by Vasundhara Volam Committed by Greg Kroah-Hartman Sep 12, 2020

bnxt_en: Fix PCI AER error recovery flow



[ Upstream commit df3875ec550396974b1d8a518bd120d034738236 ]

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: 6316ea6d ("bnxt_en: Enable AER support.")
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 7f3aa14c

drivers/net/ethernet/broadcom/bnxt/bnxt.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -7085,6 +7085,7 @@ static int bnxt_init_one(struct pci_dev pdev, const struct pci_device_id ent)

		bnxt_parse_log_pcie_link(bp);

		pci_save_state(pdev);
		return 0;

		init_err:
		@@ -7158,6 +7159,8 @@ 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);

		if (netif_running(netdev))
		err = bnxt_open(netdev);