Author: adrian
Date: Tue Dec 10 00:07:04 2013
New Revision: 259150
URL: http://svnweb.freebsd.org/changeset/base/259150
Log:
Print out the full PCIe link negotiation during dmesg.
I found this useful when checking whether a NIC is in a PCIE 3.0 8x slot
or not.
Reviewed by: np
Sponsored by: Netflix, inc.
Modified:
head/sys/dev/cxgbe/t4_main.c
Modified: head/sys/dev/cxgbe/t4_main.c
==============================================================================
--- head/sys/dev/cxgbe/t4_main.c Mon Dec 9 23:59:16 2013
(r259149)
+++ head/sys/dev/cxgbe/t4_main.c Tue Dec 10 00:07:04 2013
(r259150)
@@ -549,6 +549,7 @@ t4_attach(device_t dev)
#ifdef TCP_OFFLOAD
int ofld_rqidx, ofld_tqidx;
#endif
+ const char *pcie_ts;
sc = device_get_softc(dev);
sc->dev = dev;
@@ -816,9 +817,24 @@ t4_attach(device_t dev)
goto done;
}
+ switch (sc->params.pci.speed) {
+ case 0x1:
+ pcie_ts = "2.5";
+ break;
+ case 0x2:
+ pcie_ts = "5.0";
+ break;
+ case 0x3:
+ pcie_ts = "8.0";
+ break;
+ default:
+ pcie_ts = "??";
+ break;
+ }
device_printf(dev,
- "PCIe x%d, %d ports, %d %s interrupt%s, %d eq, %d iq\n",
- sc->params.pci.width, sc->params.nports, sc->intr_count,
+ "PCIe x%d (%s GTS/s) (%d), %d ports, %d %s interrupt%s, %d eq, %d
iq\n",
+ sc->params.pci.width, pcie_ts, sc->params.pci.speed,
+ sc->params.nports, sc->intr_count,
sc->intr_type == INTR_MSIX ? "MSI-X" :
(sc->intr_type == INTR_MSI ? "MSI" : "INTx"),
sc->intr_count > 1 ? "s" : "", sc->sge.neq, sc->sge.niq);
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