Date: Tue, 7 Dec 2010 20:32:40 +0100 From: Stefan Richter Subject: firewire: ohci: fix regression with Agere FW643 rev 06, disable MSI Agere FW643 rev 06, listed as "11c1:5901 (rev 06) (prog-if 10 [OHCI])", produced SBP-2 I/O errors since kernel 2.6.36. Disabling MSI fixes it. Since MSI work on Agere FW643-E (same vendor and device ID, but rev 07), introduce a device revision field into firewire-ohci's quirks list so that different quirks can be defined for older and newer revisions. Reported-by: Jonathan Isom Signed-off-by: Stefan Richter Cc: # 2.6.36.y --- drivers/firewire/ohci.c | 48 +++++++++++++++++++++++++++------------ 1 file changed, 33 insertions(+), 15 deletions(-) Index: b/drivers/firewire/ohci.c =================================================================== --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -242,6 +242,7 @@ static inline struct fw_ohci *fw_ohci(st static char ohci_driver_name[] = KBUILD_MODNAME; +#define PCI_DEVICE_ID_AGERE_FW643 0x5901 #define PCI_DEVICE_ID_JMICRON_JMB38X_FW 0x2380 #define PCI_DEVICE_ID_TI_TSB12LV22 0x8009 @@ -253,19 +254,34 @@ static char ohci_driver_name[] = KBUILD_ /* In case of multiple matches in ohci_quirks[], only the first one is used. */ static const struct { - unsigned short vendor, device, flags; + unsigned short vendor, device, revision, flags; } ohci_quirks[] = { - {PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TSB12LV22, QUIRK_CYCLE_TIMER | - QUIRK_RESET_PACKET | - QUIRK_NO_1394A}, - {PCI_VENDOR_ID_TI, PCI_ANY_ID, QUIRK_RESET_PACKET}, - {PCI_VENDOR_ID_AL, PCI_ANY_ID, QUIRK_CYCLE_TIMER}, - {PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB38X_FW, QUIRK_NO_MSI}, - {PCI_VENDOR_ID_NEC, PCI_ANY_ID, QUIRK_CYCLE_TIMER}, - {PCI_VENDOR_ID_VIA, PCI_ANY_ID, QUIRK_CYCLE_TIMER | - QUIRK_NO_MSI}, - {PCI_VENDOR_ID_RICOH, PCI_ANY_ID, QUIRK_CYCLE_TIMER}, - {PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_UNI_N_FW, QUIRK_BE_HEADERS}, + {PCI_VENDOR_ID_AL, PCI_ANY_ID, PCI_ANY_ID, + QUIRK_CYCLE_TIMER}, + + {PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_UNI_N_FW, PCI_ANY_ID, + QUIRK_BE_HEADERS}, + + {PCI_VENDOR_ID_ATT, PCI_DEVICE_ID_AGERE_FW643, 6, + QUIRK_NO_MSI}, + + {PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB38X_FW, PCI_ANY_ID, + QUIRK_NO_MSI}, + + {PCI_VENDOR_ID_NEC, PCI_ANY_ID, PCI_ANY_ID, + QUIRK_CYCLE_TIMER}, + + {PCI_VENDOR_ID_RICOH, PCI_ANY_ID, PCI_ANY_ID, + QUIRK_CYCLE_TIMER}, + + {PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TSB12LV22, PCI_ANY_ID, + QUIRK_CYCLE_TIMER | QUIRK_RESET_PACKET | QUIRK_NO_1394A}, + + {PCI_VENDOR_ID_TI, PCI_ANY_ID, PCI_ANY_ID, + QUIRK_RESET_PACKET}, + + {PCI_VENDOR_ID_VIA, PCI_ANY_ID, PCI_ANY_ID, + QUIRK_CYCLE_TIMER | QUIRK_NO_MSI}, }; /* This overrides anything that was found in ohci_quirks[]. */ @@ -2928,9 +2944,11 @@ static int __devinit pci_probe(struct pc } for (i = 0; i < ARRAY_SIZE(ohci_quirks); i++) - if (ohci_quirks[i].vendor == dev->vendor && - (ohci_quirks[i].device == dev->device || - ohci_quirks[i].device == (unsigned short)PCI_ANY_ID)) { + if ((ohci_quirks[i].vendor == dev->vendor) && + (ohci_quirks[i].device == (unsigned short)PCI_ANY_ID || + ohci_quirks[i].device == dev->device) && + (ohci_quirks[i].revision == (unsigned short)PCI_ANY_ID || + ohci_quirks[i].revision >= dev->revision)) { ohci->quirks = ohci_quirks[i].flags; break; }