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Output information about PCI-e devices with slots.

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In particular this includes additional information on HotPlug capable
slots.
This commit is contained in:
jhb 2016-04-02 01:59:53 +00:00
parent 803903b35d
commit 5fdd1034fa
1 changed files with 42 additions and 2 deletions
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44
usr.sbin/pciconf/cap.c
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@ -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, uint8_t ptr)
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, uint8_t ptr)
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