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/*
* The PCI Utilities -- Show Vendor-specific Capabilities
*
* Copyright (c) 2014 Gerd Hoffmann <kraxel@redhat.com>
*
* Can be freely distributed and used under the terms of the GNU GPL v2+.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include <stdio.h>
#include <string.h>
#include "lspci.h"
static int
show_vendor_caps_virtio(struct device *d, int where, int cap)
{
int length = BITS(cap, 0, 8);
int type = BITS(cap, 8, 8);
char *tname;
if (length < 16)
return 0;
if (!config_fetch(d, where, length))
return 0;
switch (type)
{
case 1:
tname = "CommonCfg";
break;
case 2:
tname = "Notify";
break;
case 3:
tname = "ISR";
break;
case 4:
tname = "DeviceCfg";
break;
default:
tname = "<unknown>";
break;
}
printf("VirtIO: %s\n", tname);
if (verbose < 2)
return 1;
printf("\t\tBAR=%d offset=%08x size=%08x",
get_conf_byte(d, where + 4),
get_conf_long(d, where + 8),
get_conf_long(d, where + 12));
if (type == 2 && length >= 20)
printf(" multiplier=%08x", get_conf_long(d, where+16));
printf("\n");
return 1;
}
static int
do_show_vendor_caps(struct device *d, int where, int cap)
{
switch (d->dev->vendor_id)
{
case 0x1af4: /* Red Hat */
if (d->dev->device_id >= 0x1000 &&
d->dev->device_id <= 0x107f)
return show_vendor_caps_virtio(d, where, cap);
break;
}
return 0;
}
void
show_vendor_caps(struct device *d, int where, int cap)
{
printf("Vendor Specific Information: ");
if (!do_show_vendor_caps(d, where, cap))
printf("Len=%02x <?>\n", BITS(cap, 0, 8));
}
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