/* * The PCI Utilities -- Show Vendor-specific Capabilities * * Copyright (c) 2014 Gerd Hoffmann * * Can be freely distributed and used under the terms of the GNU GPL v2+. * * SPDX-License-Identifier: GPL-2.0-or-later */ #include #include #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 = ""; 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)); }