diff options
author | Ido Barnea <ibarnea@cisco.com> | 2015-12-09 05:07:44 +0200 |
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committer | Ido Barnea <ibarnea@cisco.com> | 2015-12-27 08:50:12 +0200 |
commit | 509648b87434b9032d38b8ca5ad470ba3edcc036 (patch) | |
tree | 920548ce9e2e5aeed4c88c1b288290505e7d7987 /src/dpdk_lib18/librte_eal/bsdapp/eal/eal_pci.c | |
parent | b161dc672544a913f7f1ddf3a086dd75f2f1134a (diff) |
Adding dpdk 2.2 instead of dpdk 1.8 and making changes to make compilation work.
40G and 10G filters do not work yet.
Diffstat (limited to 'src/dpdk_lib18/librte_eal/bsdapp/eal/eal_pci.c')
-rwxr-xr-x | src/dpdk_lib18/librte_eal/bsdapp/eal/eal_pci.c | 510 |
1 files changed, 0 insertions, 510 deletions
diff --git a/src/dpdk_lib18/librte_eal/bsdapp/eal/eal_pci.c b/src/dpdk_lib18/librte_eal/bsdapp/eal/eal_pci.c deleted file mode 100755 index 74ecce75..00000000 --- a/src/dpdk_lib18/librte_eal/bsdapp/eal/eal_pci.c +++ /dev/null @@ -1,510 +0,0 @@ -/*- - * 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. - */ - -#include <ctype.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <stdarg.h> -#include <unistd.h> -#include <inttypes.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> -#include <stdarg.h> -#include <errno.h> -#include <dirent.h> -#include <limits.h> -#include <sys/queue.h> -#include <sys/mman.h> -#include <sys/ioctl.h> -#include <sys/pciio.h> -#include <dev/pci/pcireg.h> - -#include <rte_interrupts.h> -#include <rte_log.h> -#include <rte_pci.h> -#include <rte_common.h> -#include <rte_launch.h> -#include <rte_memory.h> -#include <rte_memzone.h> -#include <rte_tailq.h> -#include <rte_eal.h> -#include <rte_eal_memconfig.h> -#include <rte_per_lcore.h> -#include <rte_lcore.h> -#include <rte_malloc.h> -#include <rte_string_fns.h> -#include <rte_debug.h> -#include <rte_devargs.h> - -#include "rte_pci_dev_ids.h" -#include "eal_filesystem.h" -#include "eal_private.h" - -/** - * @file - * PCI probing under linux - * - * This code is used to simulate a PCI probe by parsing information in - * sysfs. Moreover, when a registered driver matches a device, the - * kernel driver currently using it is unloaded and replaced by - * igb_uio module, which is a very minimal userland driver for Intel - * network card, only providing access to PCI BAR to applications, and - * enabling bus master. - */ - -struct uio_map { - void *addr; - uint64_t offset; - uint64_t size; - uint64_t phaddr; -}; - -/* - * For multi-process we need to reproduce all PCI mappings in secondary - * processes, so save them in a tailq. - */ -struct uio_resource { - TAILQ_ENTRY(uio_resource) next; - - struct rte_pci_addr pci_addr; - char path[PATH_MAX]; - size_t nb_maps; - struct uio_map maps[PCI_MAX_RESOURCE]; -}; - -TAILQ_HEAD(uio_res_list, uio_resource); - -static struct uio_res_list *uio_res_list = NULL; - -/* unbind kernel driver for this device */ -static int -pci_unbind_kernel_driver(struct rte_pci_device *dev __rte_unused) -{ - RTE_LOG(ERR, EAL, "RTE_PCI_DRV_FORCE_UNBIND flag is not implemented " - "for BSD\n"); - return -ENOTSUP; -} - -/* map a particular resource from a file */ -static void * -pci_map_resource(void *requested_addr, const char *devname, off_t offset, - size_t size) -{ - int fd; - void *mapaddr; - - /* - * open devname, to mmap it - */ - fd = open(devname, O_RDWR); - if (fd < 0) { - RTE_LOG(ERR, EAL, "Cannot open %s: %s\n", - devname, strerror(errno)); - goto fail; - } - - /* Map the PCI memory resource of device */ - mapaddr = mmap(requested_addr, size, PROT_READ | PROT_WRITE, - MAP_SHARED, fd, offset); - close(fd); - if (mapaddr == MAP_FAILED || - (requested_addr != NULL && mapaddr != requested_addr)) { - RTE_LOG(ERR, EAL, "%s(): cannot mmap(%s(%d), %p, 0x%lx, 0x%lx):" - " %s (%p)\n", __func__, devname, fd, requested_addr, - (unsigned long)size, (unsigned long)offset, - strerror(errno), mapaddr); - goto fail; - } - - RTE_LOG(DEBUG, EAL, " PCI memory mapped at %p\n", mapaddr); - - return mapaddr; - -fail: - return NULL; -} - -static int -pci_uio_map_secondary(struct rte_pci_device *dev) -{ - size_t i; - struct uio_resource *uio_res; - - TAILQ_FOREACH(uio_res, uio_res_list, next) { - - /* skip this element if it doesn't match our PCI address */ - if (memcmp(&uio_res->pci_addr, &dev->addr, sizeof(dev->addr))) - continue; - - for (i = 0; i != uio_res->nb_maps; i++) { - if (pci_map_resource(uio_res->maps[i].addr, - uio_res->path, - (off_t)uio_res->maps[i].offset, - (size_t)uio_res->maps[i].size) - != uio_res->maps[i].addr) { - RTE_LOG(ERR, EAL, - "Cannot mmap device resource\n"); - return (-1); - } - } - return (0); - } - - RTE_LOG(ERR, EAL, "Cannot find resource for device\n"); - return 1; -} - -/* map the PCI resource of a PCI device in virtual memory */ -static int -pci_uio_map_resource(struct rte_pci_device *dev) -{ - int i, j; - char devname[PATH_MAX]; /* contains the /dev/uioX */ - void *mapaddr; - uint64_t phaddr; - uint64_t offset; - uint64_t pagesz; - struct rte_pci_addr *loc = &dev->addr; - struct uio_resource *uio_res; - struct uio_map *maps; - - dev->intr_handle.fd = -1; - dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN; - - /* secondary processes - use already recorded details */ - if (rte_eal_process_type() != RTE_PROC_PRIMARY) - return (pci_uio_map_secondary(dev)); - - snprintf(devname, sizeof(devname), "/dev/uio@pci:%u:%u:%u", - dev->addr.bus, dev->addr.devid, dev->addr.function); - - if (access(devname, O_RDWR) < 0) { - RTE_LOG(WARNING, EAL, " "PCI_PRI_FMT" not managed by UIO driver, " - "skipping\n", loc->domain, loc->bus, loc->devid, loc->function); - return 1; - } - - /* save fd if in primary process */ - dev->intr_handle.fd = open(devname, O_RDWR); - if (dev->intr_handle.fd < 0) { - RTE_LOG(ERR, EAL, "Cannot open %s: %s\n", - devname, strerror(errno)); - return -1; - } - dev->intr_handle.type = RTE_INTR_HANDLE_UIO; - - /* allocate the mapping details for secondary processes*/ - if ((uio_res = rte_zmalloc("UIO_RES", sizeof (*uio_res), 0)) == NULL) { - RTE_LOG(ERR, EAL, - "%s(): cannot store uio mmap details\n", __func__); - return (-1); - } - - snprintf(uio_res->path, sizeof(uio_res->path), "%s", devname); - memcpy(&uio_res->pci_addr, &dev->addr, sizeof(uio_res->pci_addr)); - - - /* Map all BARs */ - pagesz = sysconf(_SC_PAGESIZE); - - maps = uio_res->maps; - for (i = uio_res->nb_maps = 0; i != PCI_MAX_RESOURCE; i++) { - - j = uio_res->nb_maps; - /* skip empty BAR */ - if ((phaddr = dev->mem_resource[i].phys_addr) == 0) - continue; - - /* if matching map is found, then use it */ - offset = i * pagesz; - maps[j].offset = offset; - maps[j].phaddr = dev->mem_resource[i].phys_addr; - maps[j].size = dev->mem_resource[i].len; - if (maps[j].addr != NULL || - (mapaddr = pci_map_resource(NULL, devname, (off_t)offset, - (size_t)maps[j].size) - ) == NULL) { - rte_free(uio_res); - return (-1); - } - - maps[j].addr = mapaddr; - uio_res->nb_maps++; - dev->mem_resource[i].addr = mapaddr; - } - - TAILQ_INSERT_TAIL(uio_res_list, uio_res, next); - - return (0); -} - -/* Compare two PCI device addresses. */ -static int -pci_addr_comparison(struct rte_pci_addr *addr, struct rte_pci_addr *addr2) -{ - uint64_t dev_addr = (addr->domain << 24) + (addr->bus << 16) + (addr->devid << 8) + addr->function; - uint64_t dev_addr2 = (addr2->domain << 24) + (addr2->bus << 16) + (addr2->devid << 8) + addr2->function; - - if (dev_addr > dev_addr2) - return 1; - else - return 0; -} - - -/* Scan one pci sysfs entry, and fill the devices list from it. */ -static int -pci_scan_one(int dev_pci_fd, struct pci_conf *conf) -{ - struct rte_pci_device *dev; - struct pci_bar_io bar; - unsigned i, max; - - dev = malloc(sizeof(*dev)); - if (dev == NULL) { - return -1; - } - - memset(dev, 0, sizeof(*dev)); - dev->addr.domain = conf->pc_sel.pc_domain; - dev->addr.bus = conf->pc_sel.pc_bus; - dev->addr.devid = conf->pc_sel.pc_dev; - dev->addr.function = conf->pc_sel.pc_func; - - /* get vendor id */ - dev->id.vendor_id = conf->pc_vendor; - - /* get device id */ - dev->id.device_id = conf->pc_device; - - /* get subsystem_vendor id */ - dev->id.subsystem_vendor_id = conf->pc_subvendor; - - /* get subsystem_device id */ - dev->id.subsystem_device_id = conf->pc_subdevice; - - /* TODO: get max_vfs */ - dev->max_vfs = 0; - - /* FreeBSD has no NUMA support (yet) */ - dev->numa_node = 0; - -/* parse resources */ - switch (conf->pc_hdr & PCIM_HDRTYPE) { - case PCIM_HDRTYPE_NORMAL: - max = PCIR_MAX_BAR_0; - break; - case PCIM_HDRTYPE_BRIDGE: - max = PCIR_MAX_BAR_1; - break; - case PCIM_HDRTYPE_CARDBUS: - max = PCIR_MAX_BAR_2; - break; - default: - goto skipdev; - } - - for (i = 0; i <= max; i++) { - bar.pbi_sel = conf->pc_sel; - bar.pbi_reg = PCIR_BAR(i); - if (ioctl(dev_pci_fd, PCIOCGETBAR, &bar) < 0) - continue; - - dev->mem_resource[i].len = bar.pbi_length; - if (PCI_BAR_IO(bar.pbi_base)) { - dev->mem_resource[i].addr = (void *)(bar.pbi_base & ~((uint64_t)0xf)); - continue; - } - dev->mem_resource[i].phys_addr = bar.pbi_base & ~((uint64_t)0xf); - } - - /* device is valid, add in list (sorted) */ - if (TAILQ_EMPTY(&pci_device_list)) { - TAILQ_INSERT_TAIL(&pci_device_list, dev, next); - } - else { - struct rte_pci_device *dev2 = NULL; - - TAILQ_FOREACH(dev2, &pci_device_list, next) { - if (pci_addr_comparison(&dev->addr, &dev2->addr)) - continue; - else { - TAILQ_INSERT_BEFORE(dev2, dev, next); - return 0; - } - } - TAILQ_INSERT_TAIL(&pci_device_list, dev, next); - } - - return 0; - -skipdev: - free(dev); - return 0; -} - -/* - * Scan the content of the PCI bus, and add the devices in the devices - * list. Call pci_scan_one() for each pci entry found. - */ -static int -pci_scan(void) -{ - int fd = -1; - unsigned dev_count = 0; - struct pci_conf matches[16]; - struct pci_conf_io conf_io = { - .pat_buf_len = 0, - .num_patterns = 0, - .patterns = NULL, - .match_buf_len = sizeof(matches), - .matches = &matches[0], - }; - - fd = open("/dev/pci", O_RDONLY); - if (fd < 0) { - RTE_LOG(ERR, EAL, "%s(): error opening /dev/pci\n", __func__); - goto error; - } - - do { - unsigned i; - if (ioctl(fd, PCIOCGETCONF, &conf_io) < 0) { - RTE_LOG(ERR, EAL, "%s(): error with ioctl on /dev/pci: %s\n", - __func__, strerror(errno)); - goto error; - } - - for (i = 0; i < conf_io.num_matches; i++) - if (pci_scan_one(fd, &matches[i]) < 0) - goto error; - - dev_count += conf_io.num_matches; - } while(conf_io.status == PCI_GETCONF_MORE_DEVS); - - close(fd); - - RTE_LOG(ERR, EAL, "PCI scan found %u devices\n", dev_count); - return 0; - -error: - if (fd >= 0) - close(fd); - return -1; -} - -/* - * If vendor/device ID match, call the devinit() function of the - * driver. - */ -int -rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr, struct rte_pci_device *dev) -{ - struct rte_pci_id *id_table; - int ret; - - for (id_table = dr->id_table ; id_table->vendor_id != 0; id_table++) { - - /* check if device's identifiers match the driver's ones */ - if (id_table->vendor_id != dev->id.vendor_id && - id_table->vendor_id != PCI_ANY_ID) - continue; - if (id_table->device_id != dev->id.device_id && - id_table->device_id != PCI_ANY_ID) - continue; - if (id_table->subsystem_vendor_id != dev->id.subsystem_vendor_id && - id_table->subsystem_vendor_id != PCI_ANY_ID) - continue; - if (id_table->subsystem_device_id != dev->id.subsystem_device_id && - id_table->subsystem_device_id != PCI_ANY_ID) - continue; - - struct rte_pci_addr *loc = &dev->addr; - - RTE_LOG(DEBUG, EAL, "PCI device "PCI_PRI_FMT" on NUMA socket %i\n", - loc->domain, loc->bus, loc->devid, loc->function, - dev->numa_node); - - RTE_LOG(DEBUG, EAL, " probe driver: %x:%x %s\n", dev->id.vendor_id, - dev->id.device_id, dr->name); - - /* no initialization when blacklisted, return without error */ - if (dev->devargs != NULL && - dev->devargs->type == RTE_DEVTYPE_BLACKLISTED_PCI) { - - RTE_LOG(DEBUG, EAL, " Device is blacklisted, not initializing\n"); - return 0; - } - - if (dr->drv_flags & RTE_PCI_DRV_NEED_MAPPING) { - /* map resources for devices that use igb_uio */ - ret = pci_uio_map_resource(dev); - if (ret != 0) - return ret; - } else if (dr->drv_flags & RTE_PCI_DRV_FORCE_UNBIND && - rte_eal_process_type() == RTE_PROC_PRIMARY) { - /* unbind current driver */ - if (pci_unbind_kernel_driver(dev) < 0) - return -1; - } - - /* reference driver structure */ - dev->driver = dr; - - /* call the driver devinit() function */ - return dr->devinit(dr, dev); - } - /* return positive value if driver is not found */ - return 1; -} - -/* Init the PCI EAL subsystem */ -int -rte_eal_pci_init(void) -{ - TAILQ_INIT(&pci_driver_list); - TAILQ_INIT(&pci_device_list); - uio_res_list = RTE_TAILQ_RESERVE_BY_IDX(RTE_TAILQ_PCI, uio_res_list); - - /* for debug purposes, PCI can be disabled */ - if (internal_config.no_pci) - return 0; - - if (pci_scan() < 0) { - RTE_LOG(ERR, EAL, "%s(): Cannot scan PCI bus\n", __func__); - return -1; - } - return 0; -} |