diff options
Diffstat (limited to 'arch/s390/pci/pci_event.c')
| -rw-r--r-- | arch/s390/pci/pci_event.c | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/arch/s390/pci/pci_event.c b/arch/s390/pci/pci_event.c index 800f064b0da..6d7f5a3016c 100644 --- a/arch/s390/pci/pci_event.c +++ b/arch/s390/pci/pci_event.c @@ -43,9 +43,8 @@ struct zpci_ccdf_avail { u16 pec; /* PCI event code */ } __packed; -void zpci_event_error(void *data) +static void __zpci_event_error(struct zpci_ccdf_err *ccdf) { - struct zpci_ccdf_err *ccdf = data; struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid); zpci_err("error CCDF:\n"); @@ -58,9 +57,14 @@ void zpci_event_error(void *data) pci_name(zdev->pdev), ccdf->pec, ccdf->fid); } -void zpci_event_availability(void *data) +void zpci_event_error(void *data) +{ + if (zpci_is_enabled()) + __zpci_event_error(data); +} + +static void __zpci_event_availability(struct zpci_ccdf_avail *ccdf) { - struct zpci_ccdf_avail *ccdf = data; struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid); struct pci_dev *pdev = zdev ? zdev->pdev : NULL; int ret; @@ -72,16 +76,18 @@ void zpci_event_availability(void *data) switch (ccdf->pec) { case 0x0301: /* Standby -> Configured */ - if (!zdev || zdev->state == ZPCI_FN_STATE_CONFIGURED) + if (!zdev || zdev->state != ZPCI_FN_STATE_STANDBY) break; zdev->state = ZPCI_FN_STATE_CONFIGURED; + zdev->fh = ccdf->fh; ret = zpci_enable_device(zdev); if (ret) break; pci_rescan_bus(zdev->bus); break; case 0x0302: /* Reserved -> Standby */ - clp_add_pci_device(ccdf->fid, ccdf->fh, 0); + if (!zdev) + clp_add_pci_device(ccdf->fid, ccdf->fh, 0); break; case 0x0303: /* Deconfiguration requested */ if (pdev) @@ -98,9 +104,14 @@ void zpci_event_availability(void *data) break; case 0x0304: /* Configured -> Standby */ - if (pdev) + if (pdev) { + /* Give the driver a hint that the function is + * already unusable. */ + pdev->error_state = pci_channel_io_perm_failure; pci_stop_and_remove_bus_device(pdev); + } + zdev->fh = ccdf->fh; zpci_disable_device(zdev); zdev->state = ZPCI_FN_STATE_STANDBY; break; @@ -108,6 +119,8 @@ void zpci_event_availability(void *data) clp_rescan_pci_devices(); break; case 0x0308: /* Standby -> Reserved */ + if (!zdev) + break; pci_stop_root_bus(zdev->bus); pci_remove_root_bus(zdev->bus); break; @@ -115,3 +128,9 @@ void zpci_event_availability(void *data) break; } } + +void zpci_event_availability(void *data) +{ + if (zpci_is_enabled()) + __zpci_event_availability(data); +} |