/*- * BSD LICENSE * * Copyright(c) 2010-2014 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. */ /* BSD LICENSE * * Copyright 2013-2014 6WIND S.A. * * 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 6WIND S.A. 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "eal_private.h" struct pci_driver_list pci_driver_list; struct pci_device_list pci_device_list; static struct rte_devargs *pci_devargs_lookup(struct rte_pci_device *dev) { struct rte_devargs *devargs; TAILQ_FOREACH(devargs, &devargs_list, next) { if (devargs->type != RTE_DEVTYPE_BLACKLISTED_PCI && devargs->type != RTE_DEVTYPE_WHITELISTED_PCI) continue; if (!memcmp(&dev->addr, &devargs->pci.addr, sizeof(dev->addr))) return devargs; } return NULL; } /* * If vendor/device ID match, call the devinit() function of all * registered driver for the given device. Return -1 if initialization * failed, 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; int rc; TAILQ_FOREACH(dr, &pci_driver_list, next) { rc = rte_eal_pci_probe_one_driver(dr, dev); if (rc < 0) /* negative value is an error */ return -1; if (rc > 0) /* positive value means driver not found */ continue; 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; struct rte_devargs *devargs; int probe_all = 0; int ret = 0; if (rte_eal_devargs_type_count(RTE_DEVTYPE_WHITELISTED_PCI) == 0) probe_all = 1; TAILQ_FOREACH(dev, &pci_device_list, next) { /* set devargs in PCI structure */ devargs = pci_devargs_lookup(dev); if (devargs != NULL) dev->devargs = devargs; /* probe all or only whitelisted devices */ if (probe_all) ret = pci_probe_all_drivers(dev); else if (devargs != NULL && devargs->type == RTE_DEVTYPE_WHITELISTED_PCI) ret = pci_probe_all_drivers(dev); if (ret < 0) rte_exit(EXIT_FAILURE, "Requested device " PCI_PRI_FMT " cannot be used\n", dev->addr.domain, dev->addr.bus, dev->addr.devid, dev->addr.function); } return 0; } /* dump one device */ static int pci_dump_one_device(FILE *f, struct rte_pci_device *dev) { int i; fprintf(f, PCI_PRI_FMT, dev->addr.domain, dev->addr.bus, dev->addr.devid, dev->addr.function); fprintf(f, " - vendor:%x device:%x\n", dev->id.vendor_id, dev->id.device_id); for (i = 0; i != sizeof(dev->mem_resource) / sizeof(dev->mem_resource[0]); i++) { fprintf(f, " %16.16"PRIx64" %16.16"PRIx64"\n", dev->mem_resource[i].phys_addr, dev->mem_resource[i].len); } return 0; } /* dump devices on the bus */ void rte_eal_pci_dump(FILE *f) { struct rte_pci_device *dev = NULL; TAILQ_FOREACH(dev, &pci_device_list, next) { pci_dump_one_device(f, dev); } } /* register a driver */ void rte_eal_pci_register(struct rte_pci_driver *driver) { TAILQ_INSERT_TAIL(&pci_driver_list, driver, next); } /* unregister a driver */ void rte_eal_pci_unregister(struct rte_pci_driver *driver) { TAILQ_REMOVE(&pci_driver_list, driver, next); }