| /* |
| * The PCI Utilities -- Show Vendor-specific Capabilities |
| * |
| * Copyright (c) 2014 Gerd Hoffmann <[email protected]> |
| * |
| * 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)); |
| } |