summaryrefslogtreecommitdiffstats
path: root/sys/dev/pci/pci_pci.c
diff options
context:
space:
mode:
authorimp <imp@FreeBSD.org>2008-08-16 20:18:40 +0000
committerimp <imp@FreeBSD.org>2008-08-16 20:18:40 +0000
commitc73cca61188e71c277cf7324bdac792e4df63d27 (patch)
treeec3005deae5a3950aa122d6578c12be0d8bac35a /sys/dev/pci/pci_pci.c
parent0d283f41de78a4d50b4f1e8c376fb3beff51234d (diff)
downloadFreeBSD-src-c73cca61188e71c277cf7324bdac792e4df63d27.zip
FreeBSD-src-c73cca61188e71c277cf7324bdac792e4df63d27.tar.gz
Add some sysctl reporting for most pci_pci bridges. We now report
domain, pribus (the primary bus, eg the bus that this chip is on), secbus (the secondary bus, eg the bus immediately behind this chip) and subbus (the number of the highest bus behind this chip). Normally, this information is reported via bootverbose parameters, but that's hard to use for debugging in some cases. This adds reading of pribus to make this happen. In addition, change the narrow types to u_int to allow for easier reporting via sysctl for domain, secbus and subbus. This should have no effect, but if it does, please let me know.
Diffstat (limited to 'sys/dev/pci/pci_pci.c')
-rw-r--r--sys/dev/pci/pci_pci.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/sys/dev/pci/pci_pci.c b/sys/dev/pci/pci_pci.c
index 13fa065..cb02911 100644
--- a/sys/dev/pci/pci_pci.c
+++ b/sys/dev/pci/pci_pci.c
@@ -139,6 +139,8 @@ pcib_attach_common(device_t dev)
{
struct pcib_softc *sc;
uint8_t iolow;
+ struct sysctl_ctx_list *sctx;
+ struct sysctl_oid *soid;
sc = device_get_softc(dev);
sc->dev = dev;
@@ -148,6 +150,7 @@ pcib_attach_common(device_t dev)
*/
sc->command = pci_read_config(dev, PCIR_COMMAND, 1);
sc->domain = pci_get_domain(dev);
+ sc->pribus = pci_read_config(dev, PCIR_PRIBUS_1, 1);
sc->secbus = pci_read_config(dev, PCIR_SECBUS_1, 1);
sc->subbus = pci_read_config(dev, PCIR_SUBBUS_1, 1);
sc->secstat = pci_read_config(dev, PCIR_SECSTAT_1, 2);
@@ -155,6 +158,20 @@ pcib_attach_common(device_t dev)
sc->seclat = pci_read_config(dev, PCIR_SECLAT_1, 1);
/*
+ * Setup sysctl reporting nodes
+ */
+ sctx = device_get_sysctl_ctx(dev);
+ soid = device_get_sysctl_tree(dev);
+ SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "domain",
+ CTLFLAG_RD, &sc->domain, 0, "Domain number");
+ SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "pribus",
+ CTLFLAG_RD, &sc->pribus, 0, "Primary bus number");
+ SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "secbus",
+ CTLFLAG_RD, &sc->secbus, 0, "Secondary bus number");
+ SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "subbus",
+ CTLFLAG_RD, &sc->subbus, 0, "Subordinate bus number");
+
+ /*
* Determine current I/O decode.
*/
if (sc->command & PCIM_CMD_PORTEN) {
OpenPOWER on IntegriCloud