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/*-
* BSD LICENSE
*
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* Copyright(c) 2014 6WIND S.A.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
* OWNER 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.
*/
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <sys/queue.h>
#include <rte_interrupts.h>
#include <rte_pci.h>
#include <rte_ethdev.h>
#include <rte_devargs.h>
#include "test.h"
/* Generic maximum number of drivers to have room to allocate all drivers */
#define NUM_MAX_DRIVERS 256
/*
* PCI test
* ========
*
* - Register a driver with a ``devinit()`` function.
*
* - Dump all PCI devices.
*
* - Check that the ``devinit()`` function is called at least once.
*/
int test_pci_run = 0; /* value checked by the multiprocess test */
static unsigned pci_dev_count;
static int my_driver_init(struct rte_pci_driver *dr,
struct rte_pci_device *dev);
/* IXGBE NICS */
struct rte_pci_id my_driver_id[] = {
#define RTE_PCI_DEV_ID_DECL_IXGBE(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
#include <rte_pci_dev_ids.h>
{ .vendor_id = 0, /* sentinel */ },
};
struct rte_pci_id my_driver_id2[] = {
/* IGB & EM NICS */
#define RTE_PCI_DEV_ID_DECL_EM(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
#define RTE_PCI_DEV_ID_DECL_IGB(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
#include <rte_pci_dev_ids.h>
{ .vendor_id = 0, /* sentinel */ },
};
struct rte_pci_driver my_driver = {
.name = "test_driver",
.devinit = my_driver_init,
.id_table = my_driver_id,
.drv_flags = 0,
};
struct rte_pci_driver my_driver2 = {
.name = "test_driver2",
.devinit = my_driver_init,
.id_table = my_driver_id2,
.drv_flags = 0,
};
static int
my_driver_init(__attribute__((unused)) struct rte_pci_driver *dr,
struct rte_pci_device *dev)
{
printf("My driver init called in %s\n", dr->name);
printf("%x:%x:%x.%d", dev->addr.domain, dev->addr.bus,
dev->addr.devid, dev->addr.function);
printf(" - vendor:%x device:%x\n", dev->id.vendor_id, dev->id.device_id);
pci_dev_count ++;
return 0;
}
static void
blacklist_all_devices(void)
{
struct rte_pci_device *dev = NULL;
unsigned i = 0;
char pci_addr_str[16];
TAILQ_FOREACH(dev, &pci_device_list, next) {
snprintf(pci_addr_str, sizeof(pci_addr_str), PCI_PRI_FMT,
dev->addr.domain, dev->addr.bus, dev->addr.devid,
dev->addr.function);
if (rte_eal_devargs_add(RTE_DEVTYPE_BLACKLISTED_PCI,
pci_addr_str) < 0) {
printf("Error: cannot blacklist <%s>", pci_addr_str);
break;
}
i++;
}
printf("%u devices blacklisted\n", i);
}
/* clear devargs list that was modified by the test */
static void free_devargs_list(void)
{
struct rte_devargs *devargs;
while (!TAILQ_EMPTY(&devargs_list)) {
devargs = TAILQ_FIRST(&devargs_list);
TAILQ_REMOVE(&devargs_list, devargs, next);
free(devargs->args);
free(devargs);
}
}
int
test_pci(void)
{
struct rte_devargs_list save_devargs_list;
struct rte_pci_driver *dr = NULL;
struct rte_pci_driver *save_pci_driver_list[NUM_MAX_DRIVERS];
unsigned i, num_drivers = 0;
printf("Dump all devices\n");
rte_eal_pci_dump(stdout);
/* Unregister all previous drivers */
TAILQ_FOREACH(dr, &pci_driver_list, next) {
rte_eal_pci_unregister(dr);
save_pci_driver_list[num_drivers++] = dr;
}
rte_eal_pci_register(&my_driver);
rte_eal_pci_register(&my_driver2);
pci_dev_count = 0;
printf("Scan bus\n");
rte_eal_pci_probe();
if (pci_dev_count == 0) {
printf("no device detected\n");
return -1;
}
/* save the real devargs_list */
save_devargs_list = devargs_list;
TAILQ_INIT(&devargs_list);
blacklist_all_devices();
pci_dev_count = 0;
printf("Scan bus with all devices blacklisted\n");
rte_eal_pci_probe();
free_devargs_list();
devargs_list = save_devargs_list;
if (pci_dev_count != 0) {
printf("not all devices are blacklisted\n");
return -1;
}
test_pci_run = 1;
rte_eal_pci_unregister(&my_driver);
rte_eal_pci_unregister(&my_driver2);
/* Restore original driver list */
for (i = 0; i < num_drivers; i++)
rte_eal_pci_register(save_pci_driver_list[i]);
return 0;
}
static struct test_command pci_cmd = {
.command = "pci_autotest",
.callback = test_pci,
};
REGISTER_TEST_COMMAND(pci_cmd);
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