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authorGavin Shan <gwshan@linux.vnet.ibm.com>2015-05-12 17:05:32 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2015-07-21 11:38:47 +1000
commit79cd95200035fb4b39b089dd01c13302eee6ee03 (patch)
treefec8eb8445749e08c764a2037b37b1aaa2330ffd /arch/powerpc/platforms
parent0f36db77643b6fb573313d97fa076903de6a34d6 (diff)
downloadop-kernel-dev-79cd95200035fb4b39b089dd01c13302eee6ee03.zip
op-kernel-dev-79cd95200035fb4b39b089dd01c13302eee6ee03.tar.gz
powerpc/eeh: Dump PHB diag-data for non-existing PE
When detecting EEH error on non-existing PE, including the reserved one, the PE is simply unfrozen without dumping the PHB diag-data, which is useful for locating the root cause of the EEH error. The patch dumps the PHB diag-data when non-existing PE reports error. Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/platforms')
-rw-r--r--arch/powerpc/platforms/powernv/eeh-powernv.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c
index b357cdc..0fe2b0c 100644
--- a/arch/powerpc/platforms/powernv/eeh-powernv.c
+++ b/arch/powerpc/platforms/powernv/eeh-powernv.c
@@ -1394,11 +1394,19 @@ static int pnv_eeh_next_error(struct eeh_pe **pe)
*/
if (pnv_eeh_get_pe(hose,
be64_to_cpu(frozen_pe_no), pe)) {
- /* Try best to clear it */
pr_info("EEH: Clear non-existing PHB#%x-PE#%llx\n",
hose->global_number, be64_to_cpu(frozen_pe_no));
pr_info("EEH: PHB location: %s\n",
eeh_pe_loc_get(phb_pe));
+
+ /* Dump PHB diag-data */
+ rc = opal_pci_get_phb_diag_data2(phb->opal_id,
+ phb->diag.blob, PNV_PCI_DIAG_BUF_SIZE);
+ if (rc == OPAL_SUCCESS)
+ pnv_pci_dump_phb_diag_data(hose,
+ phb->diag.blob);
+
+ /* Try best to clear it */
opal_pci_eeh_freeze_clear(phb->opal_id,
frozen_pe_no,
OPAL_EEH_ACTION_CLEAR_FREEZE_ALL);
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