diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/controller/pci-xgene.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/pci/controller/pci-xgene.c b/drivers/pci/controller/pci-xgene.c index 56d0d50338c8..bfa506204d73 100644 --- a/drivers/pci/controller/pci-xgene.c +++ b/drivers/pci/controller/pci-xgene.c @@ -171,11 +171,11 @@ static int xgene_pcie_config_read32(struct pci_bus *bus, unsigned int devfn, return PCIBIOS_DEVICE_NOT_FOUND; /* - * The v1 controller has a bug in its Configuration Request - * Retry Status (CRS) logic: when CRS Software Visibility is - * enabled and we read the Vendor and Device ID of a non-existent - * device, the controller fabricates return data of 0xFFFF0001 - * ("device exists but is not ready") instead of 0xFFFFFFFF + * The v1 controller has a bug in its Configuration Request Retry + * Status (CRS) logic: when CRS Software Visibility is enabled and + * we read the Vendor and Device ID of a non-existent device, the + * controller fabricates return data of 0xFFFF0001 ("device exists + * but is not ready") instead of 0xFFFFFFFF (PCI_ERROR_RESPONSE) * ("device does not exist"). This causes the PCI core to retry * the read until it times out. Avoid this by not claiming to * support CRS SV. |