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PCI/AER: Add RCEC AER error injection support 

Root Complex Event Collectors (RCEC) appear as peers to Root Ports and may
also have the AER capability.

Add RCEC support to the AER error injection driver.

Co-developed-by: Sean V Kelley <sean.v.kelley@intel.com>
Link: https://lore.kernel.org/r/20201121001036.8560-16-sean.v.kelley@intel.com
Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # non-native/no RCEC
Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Signed-off-by: Sean V Kelley <sean.v.kelley@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
This commit is contained in:
Qiuxu Zhuo 2020-11-20 16:10:36 -08:00 committed by Bjorn Helgaas
parent 9a2f604f44
commit d292dd0eb3
1 changed files with 4 additions and 1 deletions
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5
drivers/pci/pcie/aer_inject.c
View File

@ -333,8 +333,11 @@ static int aer_inject(struct aer_error_inj *einj)
if (!dev)
return -ENODEV;
rpdev = pcie_find_root_port(dev);
/* If Root Port not found, try to find an RCEC */
if (!rpdev)
rpdev = dev->rcec;
if (!rpdev) {
pci_err(dev, "Root port not found\n");
pci_err(dev, "Neither Root Port nor RCEC found\n");
ret = -ENODEV;
goto out_put;
}