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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2011 NetApp, Inc.
* Copyright (c) 2018 Joyent, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/cdefs.h>
#ifndef __FreeBSD__
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <strings.h>
#endif
__FBSDID("$FreeBSD$");
#include "pci_emul.h"
#ifdef __FreeBSD__
static int
pci_hostbridge_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts)
{
/* config space */
pci_set_cfgdata16(pi, PCIR_VENDOR, 0x1275); /* NetApp */
pci_set_cfgdata16(pi, PCIR_DEVICE, 0x1275); /* NetApp */
pci_set_cfgdata8(pi, PCIR_HDRTYPE, PCIM_HDRTYPE_NORMAL);
pci_set_cfgdata8(pi, PCIR_CLASS, PCIC_BRIDGE);
pci_set_cfgdata8(pi, PCIR_SUBCLASS, PCIS_BRIDGE_HOST);
pci_emul_add_pciecap(pi, PCIEM_TYPE_ROOT_PORT);
return (0);
}
static int
pci_amd_hostbridge_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts)
{
(void) pci_hostbridge_init(ctx, pi, opts);
pci_set_cfgdata16(pi, PCIR_VENDOR, 0x1022); /* AMD */
pci_set_cfgdata16(pi, PCIR_DEVICE, 0x7432); /* made up */
return (0);
}
#else
static void
pci_hostbridge_setup(struct pci_devinst *pi, uint16_t vendor, uint16_t device)
{
/* config space */
pci_set_cfgdata16(pi, PCIR_VENDOR, vendor);
pci_set_cfgdata16(pi, PCIR_DEVICE, device);
pci_set_cfgdata8(pi, PCIR_HDRTYPE, PCIM_HDRTYPE_NORMAL);
pci_set_cfgdata8(pi, PCIR_CLASS, PCIC_BRIDGE);
pci_set_cfgdata8(pi, PCIR_SUBCLASS, PCIS_BRIDGE_HOST);
pci_emul_add_pciecap(pi, PCIEM_TYPE_ROOT_PORT);
}
static int
pci_hostbridge_parse_pci_val(const char *in, uint16_t *val)
{
long num;
char *endp = NULL;
errno = 0;
num = strtol(in, &endp, 0);
if (errno != 0 || endp == NULL || *endp != '\0') {
fprintf(stderr, "pci_hostbridge: invalid num '%s'", in);
return (-1);
} else if (num < 1 || num > UINT16_MAX) {
fprintf(stderr, "pci_hostbridge: 0x%04lx out of range", num);
return (-1);
}
*val = num;
return (0);
}
static struct pci_hostbridge_model {
const char *phm_model;
uint16_t phm_vendor;
uint16_t phm_device;
} pci_hb_models[] = {
{ "amd", 0x1022, 0x7432 }, /* AMD/made-up */
{ "netapp", 0x1275, 0x1275 }, /* NetApp/NetApp */
{ "i440fx", 0x8086, 0x1237 }, /* Intel/82441 */
{ "q35", 0x8086, 0x29b0 }, /* Intel/Q35 HB */
};
#define NUM_HB_MODELS (sizeof (pci_hb_models) / sizeof (pci_hb_models[0]))
static int
pci_hostbridge_parse_args(char *opts, uint16_t *vendorp, uint16_t *devicep)
{
const char *model = NULL;
char *next;
uint16_t vendor = 0, device = 0;
int err = 0;
for (; opts != NULL && *opts != '\0'; opts = next) {
char *val, *cp;
if ((cp = strchr(opts, ',')) != NULL) {
*cp = '\0';
next = cp + 1;
} else {
next = NULL;
}
if ((cp = strchr(opts, '=')) == NULL) {
fprintf(stderr,
"pci_hostbridge: expected value for param"
" (%s=VAL)", opts);
err = -1;
continue;
}
/* <param>=<value> handling */
val = cp + 1;
*cp = '\0';
if (strcmp(opts, "model") == 0) {
model = val;
} else if (strcmp(opts, "vendor") == 0) {
if (pci_hostbridge_parse_pci_val(val, &vendor) != 0) {
err = -1;
continue;
}
} else if (strcmp(opts, "device") == 0) {
if (pci_hostbridge_parse_pci_val(val, &device) != 0) {
err = -1;
continue;
}
} else {
fprintf(stderr,
"pci_hostbridge: unrecognized option '%s'", opts);
err = -1;
continue;
}
}
if (err != 0) {
return (err);
}
if (model != NULL && (vendor != 0 || device != 0)) {
fprintf(stderr, "pci_hostbridge: cannot specify model "
"and vendor/device");
return (-1);
} else if ((vendor != 0 && device == 0) ||
(vendor == 0 && device != 0)) {
fprintf(stderr, "pci_hostbridge: must specify both vendor and"
"device for custom hostbridge");
return (-1);
}
if (model != NULL) {
uint_t i;
for (i = 0; i < NUM_HB_MODELS; i++) {
if (strcmp(model, pci_hb_models[i].phm_model) != 0)
continue;
/* found a model match */
*vendorp = pci_hb_models[i].phm_vendor;
*devicep = pci_hb_models[i].phm_device;
return (0);
}
fprintf(stderr, "pci_hostbridge: invalid model '%s'", model);
return (-1);
}
/* custom hostbridge ID was specified */
*vendorp = vendor;
*devicep = device;
return (0);
}
static int
pci_hostbridge_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts)
{
uint16_t vendor, device;
if (opts == NULL) {
/* Fall back to NetApp default if no options are specified */
vendor = 0x1275;
device = 0x1275;
} else if (pci_hostbridge_parse_args(opts, &vendor, &device) != 0) {
return (-1);
}
pci_hostbridge_setup(pi, vendor, device);
return (0);
}
static int
pci_amd_hostbridge_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts)
{
pci_hostbridge_setup(pi, 0x1022, 0x7432);
return (0);
}
#endif /* __FreeBSD__ */
struct pci_devemu pci_de_amd_hostbridge = {
.pe_emu = "amd_hostbridge",
.pe_init = pci_amd_hostbridge_init,
};
PCI_EMUL_SET(pci_de_amd_hostbridge);
struct pci_devemu pci_de_hostbridge = {
.pe_emu = "hostbridge",
.pe_init = pci_hostbridge_init,
};
PCI_EMUL_SET(pci_de_hostbridge);
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