The PCIe Device Capabilities "Endpoint L0s Acceptable Latency" and
"Endpoint L1 Acceptable Latency" are defined only for Endpoint functions,
so don't display them unless this is an endpoint.
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
---
ls-caps.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/ls-caps.c b/ls-caps.c
index a1a1546..347f50a 100644
--- a/ls-caps.c
+++ b/ls-caps.c
@@ -659,11 +659,14 @@ static void cap_express_dev(struct device *d, int where, int type)
u16 w;
t = get_conf_long(d, where + PCI_EXP_DEVCAP);
- printf("\t\tDevCap:\tMaxPayload %d bytes, PhantFunc %d, Latency L0s %s, L1 %s\n",
+ printf("\t\tDevCap:\tMaxPayload %d bytes, PhantFunc %d",
128 << (t & PCI_EXP_DEVCAP_PAYLOAD),
- (1 << ((t & PCI_EXP_DEVCAP_PHANTOM) >> 3)) - 1,
+ (1 << ((t & PCI_EXP_DEVCAP_PHANTOM) >> 3)) - 1);
+ if ((type == PCI_EXP_TYPE_ENDPOINT) || (type == PCI_EXP_TYPE_LEG_END))
+ printf(", Latency L0s %s, L1 %s",
latency_l0s((t & PCI_EXP_DEVCAP_L0S) >> 6),
latency_l1((t & PCI_EXP_DEVCAP_L1) >> 9));
+ printf("\n");
printf("\t\t\tExtTag%c", FLAG(t, PCI_EXP_DEVCAP_EXT_TAG));
if ((type == PCI_EXP_TYPE_ENDPOINT) || (type == PCI_EXP_TYPE_LEG_END) ||
(type == PCI_EXP_TYPE_UPSTREAM) || (type == PCI_EXP_TYPE_PCI_BRIDGE))
--
To unsubscribe from this list: send the line "unsubscribe linux-pci" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
