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bnxt_en: Fix AER reset logic on 57500 chips. 

AER reset should follow the same steps as suspend/resume.  We need to
free context memory during AER reset and allocate new context memory
during recovery by calling bnxt_hwrm_func_qcaps().  We also need
to call bnxt_reenable_sriov() to restore the VFs.

Fixes: bae361c54f ("bnxt_en: Improve AER slot reset.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2020-06-14 19:57:09 -04:00 committed by David S. Miller
parent 59ae210173
commit 6e2f83884c
1 changed files with 12 additions and 5 deletions
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13
drivers/net/ethernet/broadcom/bnxt/bnxt.c
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@ -12196,6 +12196,9 @@ static pci_ers_result_t bnxt_io_error_detected(struct pci_dev *pdev,
bnxt_close(netdev);
pci_disable_device(pdev);
bnxt_free_ctx_mem(bp);
kfree(bp->ctx);
bp->ctx = NULL;
rtnl_unlock();
/* Request a slot slot reset. */
@ -12229,12 +12232,16 @@ static pci_ers_result_t bnxt_io_slot_reset(struct pci_dev *pdev)
pci_set_master(pdev);
err = bnxt_hwrm_func_reset(bp);
if (!err) {
err = bnxt_hwrm_func_qcaps(bp);
if (!err && netif_running(netdev))
err = bnxt_open(netdev);
if (!err)
result = PCI_ERS_RESULT_RECOVERED;
}
bnxt_ulp_start(bp, err);
if (!err) {
bnxt_reenable_sriov(bp);
result = PCI_ERS_RESULT_RECOVERED;
}
}
if (result != PCI_ERS_RESULT_RECOVERED) {