c7985de0a7
free() already handles NULL pointer. Signed-off-by: David Marchand <david.marchand@6wind.com>
211 lines
5.6 KiB
C
211 lines
5.6 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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* Copyright(c) 2014 6WIND S.A.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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#include <sys/queue.h>
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#include <rte_interrupts.h>
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#include <rte_pci.h>
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#include <rte_ethdev.h>
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#include <rte_devargs.h>
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#include "test.h"
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/* Generic maximum number of drivers to have room to allocate all drivers */
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#define NUM_MAX_DRIVERS 256
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/*
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* PCI test
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* ========
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*
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* - Register a driver with a ``devinit()`` function.
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*
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* - Dump all PCI devices.
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*
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* - Check that the ``devinit()`` function is called at least once.
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*/
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int test_pci_run = 0; /* value checked by the multiprocess test */
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static unsigned pci_dev_count;
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static int my_driver_init(struct rte_pci_driver *dr,
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struct rte_pci_device *dev);
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/* IXGBE NICS */
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struct rte_pci_id my_driver_id[] = {
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#define RTE_PCI_DEV_ID_DECL_IXGBE(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
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#include <rte_pci_dev_ids.h>
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{ .vendor_id = 0, /* sentinel */ },
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};
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struct rte_pci_id my_driver_id2[] = {
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/* IGB & EM NICS */
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#define RTE_PCI_DEV_ID_DECL_EM(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
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#define RTE_PCI_DEV_ID_DECL_IGB(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
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#include <rte_pci_dev_ids.h>
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{ .vendor_id = 0, /* sentinel */ },
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};
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struct rte_pci_driver my_driver = {
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.name = "test_driver",
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.devinit = my_driver_init,
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.id_table = my_driver_id,
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.drv_flags = 0,
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};
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struct rte_pci_driver my_driver2 = {
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.name = "test_driver2",
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.devinit = my_driver_init,
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.id_table = my_driver_id2,
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.drv_flags = 0,
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};
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static int
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my_driver_init(__attribute__((unused)) struct rte_pci_driver *dr,
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struct rte_pci_device *dev)
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{
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printf("My driver init called in %s\n", dr->name);
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printf("%x:%x:%x.%d", dev->addr.domain, dev->addr.bus,
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dev->addr.devid, dev->addr.function);
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printf(" - vendor:%x device:%x\n", dev->id.vendor_id, dev->id.device_id);
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pci_dev_count ++;
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return 0;
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}
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static void
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blacklist_all_devices(void)
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{
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struct rte_pci_device *dev = NULL;
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unsigned i = 0;
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char pci_addr_str[16];
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TAILQ_FOREACH(dev, &pci_device_list, next) {
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snprintf(pci_addr_str, sizeof(pci_addr_str), PCI_PRI_FMT,
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dev->addr.domain, dev->addr.bus, dev->addr.devid,
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dev->addr.function);
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if (rte_eal_devargs_add(RTE_DEVTYPE_BLACKLISTED_PCI,
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pci_addr_str) < 0) {
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printf("Error: cannot blacklist <%s>", pci_addr_str);
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break;
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}
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i++;
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}
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printf("%u devices blacklisted\n", i);
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}
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/* clear devargs list that was modified by the test */
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static void free_devargs_list(void)
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{
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struct rte_devargs *devargs;
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while (!TAILQ_EMPTY(&devargs_list)) {
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devargs = TAILQ_FIRST(&devargs_list);
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TAILQ_REMOVE(&devargs_list, devargs, next);
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free(devargs->args);
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free(devargs);
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}
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}
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int
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test_pci(void)
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{
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struct rte_devargs_list save_devargs_list;
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struct rte_pci_driver *dr = NULL;
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struct rte_pci_driver *save_pci_driver_list[NUM_MAX_DRIVERS];
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unsigned i, num_drivers = 0;
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printf("Dump all devices\n");
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rte_eal_pci_dump(stdout);
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/* Unregister all previous drivers */
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TAILQ_FOREACH(dr, &pci_driver_list, next) {
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rte_eal_pci_unregister(dr);
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save_pci_driver_list[num_drivers++] = dr;
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}
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rte_eal_pci_register(&my_driver);
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rte_eal_pci_register(&my_driver2);
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pci_dev_count = 0;
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printf("Scan bus\n");
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rte_eal_pci_probe();
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if (pci_dev_count == 0) {
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printf("no device detected\n");
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return -1;
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}
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/* save the real devargs_list */
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save_devargs_list = devargs_list;
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TAILQ_INIT(&devargs_list);
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blacklist_all_devices();
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pci_dev_count = 0;
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printf("Scan bus with all devices blacklisted\n");
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rte_eal_pci_probe();
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free_devargs_list();
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devargs_list = save_devargs_list;
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if (pci_dev_count != 0) {
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printf("not all devices are blacklisted\n");
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return -1;
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}
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test_pci_run = 1;
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rte_eal_pci_unregister(&my_driver);
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rte_eal_pci_unregister(&my_driver2);
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/* Restore original driver list */
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for (i = 0; i < num_drivers; i++)
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rte_eal_pci_register(save_pci_driver_list[i]);
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return 0;
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}
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static struct test_command pci_cmd = {
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.command = "pci_autotest",
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.callback = test_pci,
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};
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REGISTER_TEST_COMMAND(pci_cmd);
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