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[v6,10/10] PCI/AER: Add RCEC AER error injection support

Message ID 20200922213859.108826-11-seanvk.dev@oregontracks.org
State Superseded
Delegated to: Bjorn Helgaas
Headers show
Series Add RCEC handling to PCI/AER | expand

Commit Message

Sean V Kelley Sept. 22, 2020, 9:38 p.m. UTC
From: Qiuxu Zhuo <qiuxu.zhuo@intel.com>

The Root Complex Event Collectors(RCEC) appear as peers to Root Ports
and also have the AER capability. So add RCEC support to the current AER
error injection driver.

Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Co-developed-by: Sean V Kelley <sean.v.kelley@intel.com>
Signed-off-by: Sean V Kelley <sean.v.kelley@intel.com>
 drivers/pci/pcie/aer_inject.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
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diff --git a/drivers/pci/pcie/aer_inject.c b/drivers/pci/pcie/aer_inject.c
index c2cbf425afc5..011a6c54b4e3 100644
--- a/drivers/pci/pcie/aer_inject.c
+++ b/drivers/pci/pcie/aer_inject.c
@@ -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;