diff options
Diffstat (limited to 'drivers/net/ethernet/amd/pds_core/main.c')
| -rw-r--r-- | drivers/net/ethernet/amd/pds_core/main.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/net/ethernet/amd/pds_core/main.c b/drivers/net/ethernet/amd/pds_core/main.c index a375d612d..660268ff9 100644 --- a/drivers/net/ethernet/amd/pds_core/main.c +++ b/drivers/net/ethernet/amd/pds_core/main.c @@ -45,6 +45,7 @@ static void pdsc_unmap_bars(struct pdsc *pdsc) for (i = 0; i < PDS_CORE_BARS_MAX; i++) { if (bars[i].vaddr) pci_iounmap(pdsc->pdev, bars[i].vaddr); + bars[i].vaddr = NULL; } } @@ -476,6 +477,14 @@ static void pdsc_reset_prepare(struct pci_dev *pdev) pdsc_stop_health_thread(pdsc); pdsc_fw_down(pdsc); + if (pdev->is_virtfn) { + struct pdsc *pf; + + pf = pdsc_get_pf_struct(pdsc->pdev); + if (!IS_ERR(pf)) + pdsc_auxbus_dev_del(pdsc, pf); + } + pdsc_unmap_bars(pdsc); pci_release_regions(pdev); if (pci_is_enabled(pdev)) @@ -512,12 +521,43 @@ static void pdsc_reset_done(struct pci_dev *pdev) pdsc_fw_up(pdsc); pdsc_restart_health_thread(pdsc); + + if (pdev->is_virtfn) { + struct pdsc *pf; + + pf = pdsc_get_pf_struct(pdsc->pdev); + if (!IS_ERR(pf)) + pdsc_auxbus_dev_add(pdsc, pf); + } +} + +static pci_ers_result_t pdsc_pci_error_detected(struct pci_dev *pdev, + pci_channel_state_t error) +{ + if (error == pci_channel_io_frozen) { + pdsc_reset_prepare(pdev); + return PCI_ERS_RESULT_NEED_RESET; + } + + return PCI_ERS_RESULT_NONE; +} + +static void pdsc_pci_error_resume(struct pci_dev *pdev) +{ + struct pdsc *pdsc = pci_get_drvdata(pdev); + + if (test_bit(PDSC_S_FW_DEAD, &pdsc->state)) + pci_reset_function_locked(pdev); } static const struct pci_error_handlers pdsc_err_handler = { /* FLR handling */ .reset_prepare = pdsc_reset_prepare, .reset_done = pdsc_reset_done, + + /* AER handling */ + .error_detected = pdsc_pci_error_detected, + .resume = pdsc_pci_error_resume, }; static struct pci_driver pdsc_driver = { |