diff options
| author | Shannon Nelson <shannon.nelson@amd.com> | 2023-12-11 21:58:04 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-12-13 15:35:55 +0300 |
| commit | c3a910e1c47a3f033f14a76624711deeb2a0cfff (patch) | |
| tree | f9c4f142e72306f433a352e20ce4aa86dba311b7 | |
| parent | ce66172d33935df630c9b71a95cff685e12ad506 (diff) | |
| download | linux-c3a910e1c47a3f033f14a76624711deeb2a0cfff.tar.xz | |
ionic: fill out pci error handlers
Set up the pci_error_handlers error_detected and resume to be useful in
handling AER events. If the error detected is pci_channel_io_frozen we
set up to do an FLR at the end of the AER handling - this tends to clear
things up well enough that traffic can continue. Else, let the AER/PCI
machinery do what is needed for the less serious errors seen.
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Brett Creeley <brett.creeley@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c b/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c index 60e64ef043af..c49aa358e424 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c @@ -469,10 +469,35 @@ err_out: __func__, err ? "failed" : "done"); } +static pci_ers_result_t ionic_pci_error_detected(struct pci_dev *pdev, + pci_channel_state_t error) +{ + if (error == pci_channel_io_frozen) { + ionic_reset_prepare(pdev); + return PCI_ERS_RESULT_NEED_RESET; + } + + return PCI_ERS_RESULT_NONE; +} + +static void ionic_pci_error_resume(struct pci_dev *pdev) +{ + struct ionic *ionic = pci_get_drvdata(pdev); + struct ionic_lif *lif = ionic->lif; + + if (lif && test_bit(IONIC_LIF_F_FW_RESET, lif->state)) + pci_reset_function_locked(pdev); +} + static const struct pci_error_handlers ionic_err_handler = { /* FLR handling */ .reset_prepare = ionic_reset_prepare, .reset_done = ionic_reset_done, + + /* PCI bus error detected on this device */ + .error_detected = ionic_pci_error_detected, + .resume = ionic_pci_error_resume, + }; static struct pci_driver ionic_driver = { |