4 * Copyright(c) 2010-2013 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.
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14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
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18 * contributors may be used to endorse or promote products derived
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39 * modification, are permitted provided that the following conditions
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43 * notice, this list of conditions and the following disclaimer.
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45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
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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;
120 dev->blacklisted = !!is_blacklisted(dev);
121 TAILQ_FOREACH(dr, &driver_list, next) {
122 rc = rte_eal_pci_probe_one_driver(dr, dev);
124 /* negative value is an error */
127 /* positive value means driver not found */
129 /* initialize subsequent driver instances for this device */
130 if ((dr->drv_flags & RTE_PCI_DRV_MULTIPLE) &&
132 while (rte_eal_pci_probe_one_driver(dr, dev) == 0)
140 * Scan the content of the PCI bus, and call the devinit() function for
141 * all registered drivers that have a matching entry in its id_table
142 * for discovered devices.
145 rte_eal_pci_probe(void)
147 struct rte_pci_device *dev = NULL;
149 TAILQ_FOREACH(dev, &device_list, next)
150 pci_probe_all_drivers(dev);
154 /* dump one device */
156 pci_dump_one_device(struct rte_pci_device *dev)
160 printf(PCI_PRI_FMT, dev->addr.domain, dev->addr.bus,
161 dev->addr.devid, dev->addr.function);
162 printf(" - vendor:%x device:%x\n", dev->id.vendor_id,
165 for (i = 0; i != sizeof(dev->mem_resource) /
166 sizeof(dev->mem_resource[0]); i++) {
167 printf(" %16.16"PRIx64" %16.16"PRIx64"\n",
168 dev->mem_resource[i].phys_addr,
169 dev->mem_resource[i].len);
174 /* dump devices on the bus */
176 rte_eal_pci_dump(void)
178 struct rte_pci_device *dev = NULL;
180 TAILQ_FOREACH(dev, &device_list, next) {
181 pci_dump_one_device(dev);
185 /* register a driver */
187 rte_eal_pci_register(struct rte_pci_driver *driver)
189 TAILQ_INSERT_TAIL(&driver_list, driver, next);
192 /* unregister a driver */
194 rte_eal_pci_unregister(struct rte_pci_driver *driver)
196 TAILQ_REMOVE(&driver_list, driver, next);
200 rte_eal_pci_set_blacklist(struct rte_pci_addr *blacklist, unsigned size)
202 dev_blacklist = blacklist;
203 dev_blacklist_size = size;