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| author | Richard A Lary <rlary@linux.vnet.ibm.com> | 2011-04-22 10:00:05 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-05-04 16:02:38 +1000 |
| commit | ecb7390211fe9cb14ff0bae116a3f4f1149c0b6c (patch) | |
| tree | 07963d208f1936465ce5a7a3b1ff0446c5532873 /arch/powerpc/platforms | |
| parent | 308fc4f8e10b5239cde46104bb9fca79b46230c8 (diff) | |
| download | op-kernel-dev-ecb7390211fe9cb14ff0bae116a3f4f1149c0b6c.zip op-kernel-dev-ecb7390211fe9cb14ff0bae116a3f4f1149c0b6c.tar.gz | |
powerpc/pseries/eeh: Handle functional reset on non-PCIe device
Fundamental reset is an optional reset type supported only by PCIe adapters.
Handle the unexpected case where a non-PCIe device has requested a
fundamental reset. Try hot-reset as a fallback to handle this case.
Signed-off-by: Richard A Lary <rlary@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/pseries/eeh.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index 6cb3e7bd..46b55cf 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -728,15 +728,24 @@ rtas_pci_slot_reset(struct pci_dn *pdn, int state) if (pdn->eeh_pe_config_addr) config_addr = pdn->eeh_pe_config_addr; - rc = rtas_call(ibm_set_slot_reset,4,1, NULL, + rc = rtas_call(ibm_set_slot_reset, 4, 1, NULL, config_addr, BUID_HI(pdn->phb->buid), BUID_LO(pdn->phb->buid), state); - if (rc) - printk (KERN_WARNING "EEH: Unable to reset the failed slot," - " (%d) #RST=%d dn=%s\n", - rc, state, pdn->node->full_name); + + /* Fundamental-reset not supported on this PE, try hot-reset */ + if (rc == -8 && state == 3) { + rc = rtas_call(ibm_set_slot_reset, 4, 1, NULL, + config_addr, + BUID_HI(pdn->phb->buid), + BUID_LO(pdn->phb->buid), 1); + if (rc) + printk(KERN_WARNING + "EEH: Unable to reset the failed slot," + " #RST=%d dn=%s\n", + rc, pdn->node->full_name); + } } /** |
