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Commit 87b336d0 authored by Keith Busch's avatar Keith Busch Committed by Bjorn Helgaas
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PCI/DPC: Decode extended reasons 



Decode the currently defined extended event reasons rather than just using
the generic "extended" explanation.

Signed-off-by: default avatarKeith Busch <keith.busch@intel.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent 7ce7d89f

drivers/pci/pcie/pcie-dpc.c

+6 −2
Original line number Diff line number Diff line
@@ -73,11 +73,15 @@ 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;