diff options
| author | Gavin Shan <gwshan@linux.vnet.ibm.com> | 2016-10-14 15:26:07 +1100 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2016-10-17 10:33:57 +1100 |
| commit | 2e19de4c2f4b47f0259ba265ea7d1786f1b44cd7 (patch) | |
| tree | 25d333f30511ce920ee12d916e17a1f18c067a89 /hw/phb3.c | |
| parent | 5f3720f2c8ad6c423493be06e6f84418c511ce39 (diff) | |
| download | blackbird-skiboot-2e19de4c2f4b47f0259ba265ea7d1786f1b44cd7.tar.gz blackbird-skiboot-2e19de4c2f4b47f0259ba265ea7d1786f1b44cd7.zip | |
hw/phb3: Override root slot's prepare_link_change() with PHB's
For PCI slot behind root port, its prepare_link_change() should be
same to PHB's. Otherwise, the UTL events cannot be masked when the
slot is reseted, leading to EEH error because of UTL link-down
event.
Cc: stable # 5.3.0+
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'hw/phb3.c')
| -rw-r--r-- | hw/phb3.c | 8 |
1 files changed, 8 insertions, 0 deletions
@@ -284,6 +284,14 @@ static void phb3_root_port_init(struct phb *phb, struct pci_device *dev, uint16_t val16; uint32_t val32; + /* Use PHB's callback so that the UTL events will be masked + * or unmasked when the link is down or up. + */ + if (dev->slot && dev->slot->ops.prepare_link_change && + phb->slot && phb->slot->ops.prepare_link_change) + dev->slot->ops.prepare_link_change = + phb->slot->ops.prepare_link_change; + /* Mask UTL link down event if root slot supports surprise * hotplug as the event should be handled by hotplug driver * instead of EEH subsystem. |
