4 * Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * * Neither the name of Intel Corporation nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 * Copyright(c) 2013 6WIND.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
48 * * Neither the name of 6WIND S.A. nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
69 #include <sys/queue.h>
71 #include <rte_interrupts.h>
74 #include <rte_per_lcore.h>
75 #include <rte_memory.h>
76 #include <rte_memzone.h>
77 #include <rte_tailq.h>
80 #include "eal_private.h"
82 struct pci_driver_list driver_list;
83 struct pci_device_list device_list;
85 static struct rte_pci_addr *dev_blacklist = NULL;
86 static unsigned dev_blacklist_size = 0;
88 static int is_blacklisted(struct rte_pci_device *dev)
90 struct rte_pci_addr *loc = &dev->addr;
93 for (i = 0; i < dev_blacklist_size; i++) {
94 if ((loc->domain == dev_blacklist[i].domain) &&
95 (loc->bus == dev_blacklist[i].bus) &&
96 (loc->devid == dev_blacklist[i].devid) &&
97 (loc->function == dev_blacklist[i].function)) {
102 return 0; /* not in blacklist */
106 * If vendor/device ID match, call the devinit() function of all
107 * registered driver for the given device. Return -1 if no driver is
108 * found for this device.
109 * For drivers with the RTE_PCI_DRV_MULTIPLE flag enabled, register
110 * the same device multiple times until failure to do so.
111 * It is required for non-Intel NIC drivers provided by third-parties such
115 pci_probe_all_drivers(struct rte_pci_device *dev)
117 struct rte_pci_driver *dr = NULL;
119 dev->blacklisted = !!is_blacklisted(dev);
120 TAILQ_FOREACH(dr, &driver_list, next) {
121 if (rte_eal_pci_probe_one_driver(dr, dev))
123 /* initialize subsequent driver instances for this device */
124 if (dr->drv_flags & RTE_PCI_DRV_MULTIPLE)
125 while (rte_eal_pci_probe_one_driver(dr, dev) == 0)
133 * Scan the content of the PCI bus, and call the devinit() function for
134 * all registered drivers that have a matching entry in its id_table
135 * for discovered devices.
138 rte_eal_pci_probe(void)
140 struct rte_pci_device *dev = NULL;
142 TAILQ_FOREACH(dev, &device_list, next)
143 pci_probe_all_drivers(dev);
144 #ifdef RTE_EAL_UNBIND_PORTS
145 if (atexit(rte_eal_pci_exit) != 0)
146 RTE_LOG(ERR, EAL, "atexit failure\n");
151 /* dump one device */
153 pci_dump_one_device(struct rte_pci_device *dev)
155 printf(PCI_PRI_FMT, dev->addr.domain, dev->addr.bus,
156 dev->addr.devid, dev->addr.function);
157 printf(" - vendor:%x device:%x\n", dev->id.vendor_id,
159 printf(" %16.16"PRIx64" %16.16"PRIx64"\n",
160 dev->mem_resource.phys_addr, dev->mem_resource.len);
164 /* dump devices on the bus */
166 rte_eal_pci_dump(void)
168 struct rte_pci_device *dev = NULL;
170 TAILQ_FOREACH(dev, &device_list, next) {
171 pci_dump_one_device(dev);
175 /* register a driver */
177 rte_eal_pci_register(struct rte_pci_driver *driver)
179 TAILQ_INSERT_TAIL(&driver_list, driver, next);
183 rte_eal_pci_set_blacklist(struct rte_pci_addr *blacklist, unsigned size)
185 dev_blacklist = blacklist;
186 dev_blacklist_size = size;