145 lines
4.1 KiB
C
145 lines
4.1 KiB
C
/*-
|
|
* BSD LICENSE
|
|
*
|
|
* Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
|
|
* 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 <inttypes.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <sys/queue.h>
|
|
|
|
#include <rte_interrupts.h>
|
|
#include <rte_pci.h>
|
|
#include <rte_per_lcore.h>
|
|
#include <rte_memory.h>
|
|
#include <rte_memzone.h>
|
|
#include <rte_tailq.h>
|
|
#include <rte_eal.h>
|
|
|
|
#include "eal_private.h"
|
|
|
|
struct pci_driver_list driver_list;
|
|
struct pci_device_list device_list;
|
|
|
|
static struct rte_pci_addr *dev_blacklist = NULL;
|
|
static unsigned dev_blacklist_size = 0;
|
|
|
|
static int is_blacklisted(struct rte_pci_device *dev)
|
|
{
|
|
struct rte_pci_addr *loc = &dev->addr;
|
|
unsigned i;
|
|
|
|
for (i = 0; i < dev_blacklist_size; i++) {
|
|
if ((loc->domain == dev_blacklist[i].domain) &&
|
|
(loc->bus == dev_blacklist[i].bus) &&
|
|
(loc->devid == dev_blacklist[i].devid) &&
|
|
(loc->function == dev_blacklist[i].function)) {
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 0; /* not in blacklist */
|
|
}
|
|
|
|
/*
|
|
* If vendor/device ID match, call the devinit() function of all
|
|
* registered driver for the given device. Return -1 if no driver is
|
|
* found for this device.
|
|
*/
|
|
static int
|
|
pci_probe_all_drivers(struct rte_pci_device *dev)
|
|
{
|
|
struct rte_pci_driver *dr = NULL;
|
|
|
|
TAILQ_FOREACH(dr, &driver_list, next) {
|
|
if (is_blacklisted(dev))
|
|
return -1;
|
|
if (rte_eal_pci_probe_one_driver(dr, dev) == 0)
|
|
return 0;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* Scan the content of the PCI bus, and call the devinit() function for
|
|
* all registered drivers that have a matching entry in its id_table
|
|
* for discovered devices.
|
|
*/
|
|
int
|
|
rte_eal_pci_probe(void)
|
|
{
|
|
struct rte_pci_device *dev = NULL;
|
|
|
|
TAILQ_FOREACH(dev, &device_list, next)
|
|
pci_probe_all_drivers(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* dump one device */
|
|
static int
|
|
pci_dump_one_device(struct rte_pci_device *dev)
|
|
{
|
|
printf(PCI_PRI_FMT, 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);
|
|
printf(" %16.16"PRIx64" %16.16"PRIx64"\n",
|
|
dev->mem_resource.phys_addr, dev->mem_resource.len);
|
|
return 0;
|
|
}
|
|
|
|
/* dump devices on the bus */
|
|
void
|
|
rte_eal_pci_dump(void)
|
|
{
|
|
struct rte_pci_device *dev = NULL;
|
|
|
|
TAILQ_FOREACH(dev, &device_list, next) {
|
|
pci_dump_one_device(dev);
|
|
}
|
|
}
|
|
|
|
/* register a driver */
|
|
void
|
|
rte_eal_pci_register(struct rte_pci_driver *driver)
|
|
{
|
|
TAILQ_INSERT_TAIL(&driver_list, driver, next);
|
|
}
|
|
|
|
void
|
|
rte_eal_pci_set_blacklist(struct rte_pci_addr *blacklist, unsigned size)
|
|
{
|
|
dev_blacklist = blacklist;
|
|
dev_blacklist_size = size;
|
|
}
|