4 * Copyright(c) 2010-2014 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.
35 * Copyright 2013-2014 6WIND S.A.
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
41 * * Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * * Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in
45 * the documentation and/or other materials provided with the
47 * * Neither the name of 6WIND S.A. nor the names of its
48 * contributors may be used to endorse or promote products derived
49 * from this software without specific prior written permission.
51 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
52 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
53 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
54 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
55 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
56 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
57 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
61 * 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>
79 #include <rte_string_fns.h>
80 #include <rte_common.h>
81 #include <rte_devargs.h>
83 #include "eal_private.h"
85 struct pci_driver_list pci_driver_list;
86 struct pci_device_list pci_device_list;
88 static struct rte_devargs *pci_devargs_lookup(struct rte_pci_device *dev)
90 struct rte_devargs *devargs;
92 TAILQ_FOREACH(devargs, &devargs_list, next) {
93 if (devargs->type != RTE_DEVTYPE_BLACKLISTED_PCI &&
94 devargs->type != RTE_DEVTYPE_WHITELISTED_PCI)
96 if (!memcmp(&dev->addr, &devargs->pci.addr, sizeof(dev->addr)))
103 * If vendor/device ID match, call the devinit() function of all
104 * registered driver for the given device. Return -1 if initialization
105 * failed, return 1 if no driver is found for this device.
108 pci_probe_all_drivers(struct rte_pci_device *dev)
110 struct rte_pci_driver *dr = NULL;
113 TAILQ_FOREACH(dr, &pci_driver_list, next) {
114 rc = rte_eal_pci_probe_one_driver(dr, dev);
116 /* negative value is an error */
119 /* positive value means driver not found */
127 * Scan the content of the PCI bus, and call the devinit() function for
128 * all registered drivers that have a matching entry in its id_table
129 * for discovered devices.
132 rte_eal_pci_probe(void)
134 struct rte_pci_device *dev = NULL;
135 struct rte_devargs *devargs;
139 if (rte_eal_devargs_type_count(RTE_DEVTYPE_WHITELISTED_PCI) == 0)
142 TAILQ_FOREACH(dev, &pci_device_list, next) {
144 /* set devargs in PCI structure */
145 devargs = pci_devargs_lookup(dev);
147 dev->devargs = devargs;
149 /* probe all or only whitelisted devices */
151 ret = pci_probe_all_drivers(dev);
152 else if (devargs != NULL &&
153 devargs->type == RTE_DEVTYPE_WHITELISTED_PCI)
154 ret = pci_probe_all_drivers(dev);
156 rte_exit(EXIT_FAILURE, "Requested device " PCI_PRI_FMT
157 " cannot be used\n", dev->addr.domain, dev->addr.bus,
158 dev->addr.devid, dev->addr.function);
164 /* dump one device */
166 pci_dump_one_device(FILE *f, struct rte_pci_device *dev)
170 fprintf(f, PCI_PRI_FMT, dev->addr.domain, dev->addr.bus,
171 dev->addr.devid, dev->addr.function);
172 fprintf(f, " - vendor:%x device:%x\n", dev->id.vendor_id,
175 for (i = 0; i != sizeof(dev->mem_resource) /
176 sizeof(dev->mem_resource[0]); i++) {
177 fprintf(f, " %16.16"PRIx64" %16.16"PRIx64"\n",
178 dev->mem_resource[i].phys_addr,
179 dev->mem_resource[i].len);
184 /* dump devices on the bus */
186 rte_eal_pci_dump(FILE *f)
188 struct rte_pci_device *dev = NULL;
190 TAILQ_FOREACH(dev, &pci_device_list, next) {
191 pci_dump_one_device(f, dev);
195 /* register a driver */
197 rte_eal_pci_register(struct rte_pci_driver *driver)
199 TAILQ_INSERT_TAIL(&pci_driver_list, driver, next);
202 /* unregister a driver */
204 rte_eal_pci_unregister(struct rte_pci_driver *driver)
206 TAILQ_REMOVE(&pci_driver_list, driver, next);