@@ -1074,6 +1074,7 @@ cap_express(struct device *d, int where, int cap)
int type = (cap & PCI_EXP_FLAGS_TYPE) >> 4;
int size;
int slot = 0;
+ int link = 1;
printf("Express ");
if (verbose >= 2)
@@ -1104,9 +1105,11 @@ cap_express(struct device *d, int where, int cap)
printf("PCI/PCI-X to PCI-Express Bridge");
break;
case PCI_EXP_TYPE_ROOT_INT_EP:
+ link = 0;
printf("Root Complex Integrated Endpoint");
break;
case PCI_EXP_TYPE_ROOT_EC:
+ link = 0;
printf("Root Complex Event Collector");
break;
default:
@@ -1125,7 +1128,8 @@ cap_express(struct device *d, int where, int cap)
return;
cap_express_dev(d, where, type);
- cap_express_link(d, where, type);
+ if (link)
+ cap_express_link(d, where, type);
if (slot)
cap_express_slot(d, where);
if (type == PCI_EXP_TYPE_ROOT_PORT)
@@ -1141,7 +1145,8 @@ cap_express(struct device *d, int where, int cap)
return;
cap_express_dev2(d, where, type);
- cap_express_link2(d, where, type);
+ if (link)
+ cap_express_link2(d, where, type);
if (slot)
cap_express_slot2(d, where);
}
Root Complex Integrated Endpoints and Root Complex Event Collectors do not have links and are not permitted to implement Link or Link 2 registers, per PCIe spec r3.0, sec 1.3.2.3. Decoding them is useless and misleading. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> --- ls-caps.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html