diff options
| author | Linas Vepstas <linas@linas.org> | 2005-11-04 01:52:49 +0100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-01-10 05:28:32 +0100 |
| commit | 77bd741561016134d1761d6101c4f0361025062f (patch) | |
| tree | 5e3389b6941add4b24a2be64c730b7a9087c1f2f /arch/powerpc/platforms/pseries/eeh.c | |
| parent | Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6 (diff) | |
| download | linux-77bd741561016134d1761d6101c4f0361025062f.tar.xz linux-77bd741561016134d1761d6101c4f0361025062f.zip | |
[PATCH] powerpc: PCI Error Recovery: PPC64 core recovery routines
Various PCI bus errors can be signaled by newer PCI controllers. The
core error recovery routines are architecture dependent. This patch adds
a recovery infrastructure for the PPC64 pSeries systems.
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
(cherry picked from e8ca11b460c4c9c7fa6b529be221529ebd770e38 commit)
Diffstat (limited to 'arch/powerpc/platforms/pseries/eeh.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/eeh.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index 7fbfd16d72b7..d6560c45637b 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -485,6 +485,11 @@ static void __eeh_mark_slot (struct device_node *dn, int mode_flag) if (PCI_DN(dn)) { PCI_DN(dn)->eeh_mode |= mode_flag; + /* Mark the pci device driver too */ + struct pci_dev *dev = PCI_DN(dn)->pcidev; + if (dev && dev->driver) + dev->error_state = pci_channel_io_frozen; + if (dn->child) __eeh_mark_slot (dn->child, mode_flag); } @@ -544,6 +549,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev) int rets[3]; unsigned long flags; struct pci_dn *pdn; + enum pci_channel_state state; int rc = 0; __get_cpu_var(total_mmio_ffs)++; @@ -648,8 +654,13 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev) eeh_mark_slot (dn, EEH_MODE_ISOLATED); spin_unlock_irqrestore(&confirm_error_lock, flags); - eeh_send_failure_event (dn, dev, rets[0], rets[2]); - + state = pci_channel_io_normal; + if ((rets[0] == 2) || (rets[0] == 4)) + state = pci_channel_io_frozen; + if (rets[0] == 5) + state = pci_channel_io_perm_failure; + eeh_send_failure_event (dn, dev, state, rets[2]); + /* Most EEH events are due to device driver bugs. Having * a stack trace will help the device-driver authors figure * out what happened. So print that out. */ @@ -953,8 +964,10 @@ static void *early_enable_eeh(struct device_node *dn, void *data) * But there are a few cases like display devices that make sense. */ enable = 1; /* i.e. we will do checking */ +#if 0 if ((*class_code >> 16) == PCI_BASE_CLASS_DISPLAY) enable = 0; +#endif if (!enable) pdn->eeh_mode |= EEH_MODE_NOCHECK; |