Author: jhb
Date: Sat Apr 2 01:59:53 2016
New Revision: 297501
URL: https://svnweb.freebsd.org/changeset/base/297501
Log:
Output information about PCI-e devices with slots.
In particular this includes additional information on HotPlug capable
slots.
Modified:
head/usr.sbin/pciconf/cap.c
Modified: head/usr.sbin/pciconf/cap.c
==============================================================================
--- head/usr.sbin/pciconf/cap.c Sat Apr 2 01:55:43 2016 (r297500)
+++ head/usr.sbin/pciconf/cap.c Sat Apr 2 01:59:53 2016 (r297501)
@@ -410,6 +410,28 @@ aspm_string(uint8_t aspm)
}
}
+static int
+slot_power(uint32_t cap)
+{
+ int mwatts;
+
+ mwatts = (cap & PCIEM_SLOT_CAP_SPLV) >> 7;
+ switch (cap & PCIEM_SLOT_CAP_SPLS) {
+ case 0x0:
+ mwatts *= 1000;
+ break;
+ case 0x1:
+ mwatts *= 100;
+ break;
+ case 0x2:
+ mwatts *= 10;
+ break;
+ default:
+ break;
+ }
+ return (mwatts);
+}
+
static void
cap_express(int fd, struct pci_conf *p, uint8_t ptr)
{
@@ -452,8 +474,6 @@ cap_express(int fd, struct pci_conf *p,
printf("type %d", (flags & PCIEM_FLAGS_TYPE) >> 4);
break;
}
- if (flags & PCIEM_FLAGS_SLOT)
- printf(" slot");
if (flags & PCIEM_FLAGS_IRQ)
printf(" MSI %d", (flags & PCIEM_FLAGS_IRQ) >> 9);
cap = read_config(fd, &p->pc_sel, ptr + PCIER_DEVICE_CAP, 4);
@@ -493,6 +513,26 @@ cap_express(int fd, struct pci_conf *p,
printf(" ASPM %s(%s)", aspm_string(ctl & PCIEM_LINK_CTL_ASPMC),
aspm_string((cap & PCIEM_LINK_CAP_ASPM) >> 10));
}
+ if (!(flags & PCIEM_FLAGS_SLOT))
+ return;
+ cap = read_config(fd, &p->pc_sel, ptr + PCIER_SLOT_CAP, 4);
+ sta = read_config(fd, &p->pc_sel, ptr + PCIER_SLOT_STA, 2);
+ ctl = read_config(fd, &p->pc_sel, ptr + PCIER_SLOT_CTL, 2);
+ printf("\n ");
+ printf(" slot %d", (cap & PCIEM_SLOT_CAP_PSN) >> 19);
+ printf(" power limit %d mW", slot_power(cap));
+ if (cap & PCIEM_SLOT_CAP_HPC)
+ printf(" HotPlug(%s)", sta & PCIEM_SLOT_STA_PDS ? "present" :
+ "empty");
+ if (cap & PCIEM_SLOT_CAP_HPS)
+ printf(" surprise");
+ if (cap & PCIEM_SLOT_CAP_APB)
+ printf(" Attn Button");
+ if (cap & PCIEM_SLOT_CAP_PCP)
+ printf(" PC(%s)", ctl & PCIEM_SLOT_CTL_PCC ? "on" : "off");
+ if (cap & PCIEM_SLOT_CAP_MRLSP)
+ printf(" MRL(%s)", sta & PCIEM_SLOT_STA_MRLSS ? "open" :
+ "closed");
}
static void
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