PCI/DPC: Add eDPC support

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Add eDPC support. Get and print the RP PIO error information when the
trigger condition is RP PIO error.

For more information on eDPC, please see PCI Express Base Specification
Revision 3.1, section 6.2.10.3, or view the PCI-SIG eDPC ECN here:
https://pcisig.com/sites/default/files/specification_documents/ECN_Enhanced_DPC_2012-11-19_final.pdf

Signed-off-by: Dongdong Liu <liudongdong3@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>

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Dongdong Liu 2017-08-19 17:07:20 +08:00 • committed by Bjorn Helgaas

parent 16f73eb02d

commit f20c4ea49e

2 changed files with 172 additions and 0 deletions

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162

drivers/pci/pcie/pcie-dpc.c

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10

include/uapi/linux/pci_regs.h

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