This is just informational to decode the currently defined extended
event reasons rather than just using the generic "extended" explanation.
Signed-off-by: Keith Busch <keith.busch@xxxxxxxxx>
---
drivers/pci/pcie/pcie-dpc.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/pcie/pcie-dpc.c b/drivers/pci/pcie/pcie-dpc.c
index d91e538..9ca74f4 100644
--- a/drivers/pci/pcie/pcie-dpc.c
+++ b/drivers/pci/pcie/pcie-dpc.c
@@ -77,11 +77,15 @@ static irqreturn_t dpc_irq(int irq, void *context)
if (status & PCI_EXP_DPC_STATUS_TRIGGER) {
u16 reason = (status >> 1) & 0x3;
+ u16 ext_reason = (status >> 5) & 0x3;
- dev_warn(&dpc->dev->device, "DPC %s triggered, remove downstream devices\n",
+ dev_warn(&dpc->dev->device, "DPC %s detected, remove downstream devices\n",
(reason == 0) ? "unmasked uncorrectable error" :
(reason == 1) ? "ERR_NONFATAL" :
- (reason == 2) ? "ERR_FATAL" : "extended error");
+ (reason == 2) ? "ERR_FATAL" :
+ (ext_reason == 0) ? "RP PIO error" :
+ (ext_reason == 1) ? "software trigger" :
+ "reserved error");
schedule_work(&dpc->work);
}
return IRQ_HANDLED;
--
2.7.2
