From: Michael Chan <michael.chan@broadcom.com>
To: davem@davemloft.net
Cc: netdev@vger.kernel.org, kuba@kernel.org,
Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Subject: [PATCH net 4/8] bnxt_en: Fix PCI AER error recovery flow
Date: Wed, 26 Aug 2020 01:08:35 -0400 [thread overview]
Message-ID: <1598418519-20168-5-git-send-email-michael.chan@broadcom.com> (raw)
In-Reply-To: <1598418519-20168-1-git-send-email-michael.chan@broadcom.com>
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 --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) {
--
1.8.3.1
next prev parent reply other threads:[~2020-08-26 5:09 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-26 5:08 [PATCH net 0/8] bnxt_en: Bug fixes Michael Chan
2020-08-26 5:08 ` [PATCH net 1/8] bnxt_en: Don't query FW when netif_running() is false Michael Chan
2020-08-26 5:08 ` [PATCH net 2/8] bnxt_en: Check for zero dir entries in NVRAM Michael Chan
2020-08-26 5:08 ` [PATCH net 3/8] bnxt_en: Fix ethtool -S statitics with XDP or TCs enabled Michael Chan
2020-08-26 5:08 ` Michael Chan [this message]
2020-08-26 5:08 ` [PATCH net 5/8] bnxt_en: Fix possible crash in bnxt_fw_reset_task() Michael Chan
2020-08-26 5:08 ` [PATCH net 6/8] bnxt_en: fix HWRM error when querying VF temperature Michael Chan
2020-08-26 5:08 ` [PATCH net 7/8] bnxt_en: init RSS table for Minimal-Static VF reservation Michael Chan
2020-08-26 5:08 ` [PATCH net 8/8] bnxt_en: Setup default RSS map in all scenarios Michael Chan
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