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bnxt_en: Fix AER recovery.

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[ Upstream commit fb1e6e562b37b39adfe251919c9abfdb3e01f921 ]

A recent change skips sending firmware messages to the firmware when
pci_channel_offline() is true during fatal AER error.  To make this
complete, we need to move the re-initialization sequence to
bnxt_io_resume(), otherwise the firmware messages to re-initialize
will all be skipped.  In any case, it is more correct to re-initialize
in bnxt_io_resume().

Also, fix the reverse x-mas tree format when defining variables
in bnxt_io_slot_reset().

Fixes: b340dc680ed4 ("bnxt_en: Avoid sending firmware messages when AER error is detected.")
Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vasundhara Volam 2020-12-27 14:18:17 -05:00 committed by Greg Kroah-Hartman
parent cdb02a7a9e
commit 042c7f35fa
1 changed files with 14 additions and 17 deletions
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31
drivers/net/ethernet/broadcom/bnxt/bnxt.c
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@ -12890,10 +12890,10 @@ static pci_ers_result_t bnxt_io_error_detected(struct pci_dev *pdev,
*/
static pci_ers_result_t bnxt_io_slot_reset(struct pci_dev *pdev)
{
pci_ers_result_t result = PCI_ERS_RESULT_DISCONNECT;
struct net_device *netdev = pci_get_drvdata(pdev);
struct bnxt *bp = netdev_priv(netdev);
int err = 0, off;
pci_ers_result_t result = PCI_ERS_RESULT_DISCONNECT;
netdev_info(bp->dev, "PCI Slot Reset\n");
@ -12922,22 +12922,8 @@ static pci_ers_result_t bnxt_io_slot_reset(struct pci_dev *pdev)
pci_save_state(pdev);
err = bnxt_hwrm_func_reset(bp);
if (!err) {
err = bnxt_hwrm_func_qcaps(bp);
if (!err && netif_running(netdev))
err = bnxt_open(netdev);
}
bnxt_ulp_start(bp, err);
if (!err) {
bnxt_reenable_sriov(bp);
if (!err)
result = PCI_ERS_RESULT_RECOVERED;
}
}
if (result != PCI_ERS_RESULT_RECOVERED) {
if (netif_running(netdev))
dev_close(netdev);
pci_disable_device(pdev);
}
rtnl_unlock();
@ -12955,10 +12941,21 @@ static pci_ers_result_t bnxt_io_slot_reset(struct pci_dev *pdev)
static void bnxt_io_resume(struct pci_dev *pdev)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct bnxt *bp = netdev_priv(netdev);
int err;
netdev_info(bp->dev, "PCI Slot Resume\n");
rtnl_lock();
netif_device_attach(netdev);
err = bnxt_hwrm_func_qcaps(bp);
if (!err && netif_running(netdev))
err = bnxt_open(netdev);
bnxt_ulp_start(bp, err);
if (!err) {
bnxt_reenable_sriov(bp);
netif_device_attach(netdev);
}
rtnl_unlock();
}