-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
- * Copyright(c) 2014 6WIND S.A.
- * 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.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2018 Intel Corporation.
+ * Copyright(c) 2014 6WIND S.A.
*/
#include <stdio.h>
#include <stddef.h>
#include <errno.h>
#include <limits.h>
-#include <errno.h>
#include <sys/mman.h>
#include <sys/queue.h>
+#include <sys/stat.h>
+#include <rte_compat.h>
#include <rte_common.h>
#include <rte_debug.h>
#include <rte_memory.h>
-#include <rte_memzone.h>
#include <rte_launch.h>
#include <rte_eal.h>
#include <rte_eal_memconfig.h>
+#include <rte_errno.h>
#include <rte_per_lcore.h>
#include <rte_lcore.h>
+#include <rte_service_component.h>
#include <rte_log.h>
#include <rte_random.h>
#include <rte_cycles.h>
#include <rte_string_fns.h>
#include <rte_cpuflags.h>
#include <rte_interrupts.h>
-#include <rte_pci.h>
+#include <rte_bus.h>
#include <rte_dev.h>
#include <rte_devargs.h>
-#include <rte_common.h>
#include <rte_version.h>
+#include <rte_vfio.h>
#include <rte_atomic.h>
#include <malloc_heap.h>
static struct flock wr_lock = {
.l_type = F_WRLCK,
.l_whence = SEEK_SET,
- .l_start = offsetof(struct rte_mem_config, memseg),
- .l_len = sizeof(early_mem_config.memseg),
+ .l_start = offsetof(struct rte_mem_config, memsegs),
+ .l_len = sizeof(early_mem_config.memsegs),
};
/* Address of global and public configuration */
/* used by rte_rdtsc() */
int rte_cycles_vmware_tsc_map;
+/* platform-specific runtime dir */
+static char runtime_dir[PATH_MAX];
+
+static const char *default_runtime_dir = "/var/run";
+
+int
+eal_create_runtime_dir(void)
+{
+ const char *directory = default_runtime_dir;
+ const char *xdg_runtime_dir = getenv("XDG_RUNTIME_DIR");
+ const char *fallback = "/tmp";
+ char tmp[PATH_MAX];
+ int ret;
+
+ if (getuid() != 0) {
+ /* try XDG path first, fall back to /tmp */
+ if (xdg_runtime_dir != NULL)
+ directory = xdg_runtime_dir;
+ else
+ directory = fallback;
+ }
+ /* create DPDK subdirectory under runtime dir */
+ ret = snprintf(tmp, sizeof(tmp), "%s/dpdk", directory);
+ if (ret < 0 || ret == sizeof(tmp)) {
+ RTE_LOG(ERR, EAL, "Error creating DPDK runtime path name\n");
+ return -1;
+ }
+
+ /* create prefix-specific subdirectory under DPDK runtime dir */
+ ret = snprintf(runtime_dir, sizeof(runtime_dir), "%s/%s",
+ tmp, internal_config.hugefile_prefix);
+ if (ret < 0 || ret == sizeof(runtime_dir)) {
+ RTE_LOG(ERR, EAL, "Error creating prefix-specific runtime path name\n");
+ return -1;
+ }
+
+ /* create the path if it doesn't exist. no "mkdir -p" here, so do it
+ * step by step.
+ */
+ ret = mkdir(tmp, 0700);
+ if (ret < 0 && errno != EEXIST) {
+ RTE_LOG(ERR, EAL, "Error creating '%s': %s\n",
+ tmp, strerror(errno));
+ return -1;
+ }
+
+ ret = mkdir(runtime_dir, 0700);
+ if (ret < 0 && errno != EEXIST) {
+ RTE_LOG(ERR, EAL, "Error creating '%s': %s\n",
+ runtime_dir, strerror(errno));
+ return -1;
+ }
+
+ return 0;
+}
+
+const char *
+eal_get_runtime_dir(void)
+{
+ return runtime_dir;
+}
+
+/* Return user provided mbuf pool ops name */
+const char *
+rte_eal_mbuf_user_pool_ops(void)
+{
+ return internal_config.user_mbuf_pool_ops_name;
+}
+
/* Return a pointer to the configuration structure */
struct rte_config *
rte_eal_get_configuration(void)
return &rte_config;
}
+enum rte_iova_mode
+rte_eal_iova_mode(void)
+{
+ return rte_eal_get_configuration()->iova_mode;
+}
+
/* parse a sysfs (or other) file containing one integer value */
int
eal_parse_sysfs_value(const char *filename, unsigned long *val)
rte_panic("Cannot mmap memory for rte_config\n");
}
memcpy(rte_mem_cfg_addr, &early_mem_config, sizeof(early_mem_config));
- rte_config.mem_config = (struct rte_mem_config *) rte_mem_cfg_addr;
+ rte_config.mem_config = rte_mem_cfg_addr;
}
/* attach to an existing shared memory config */
if (rte_mem_cfg_addr == MAP_FAILED)
rte_panic("Cannot mmap memory for rte_config\n");
- rte_config.mem_config = (struct rte_mem_config *) rte_mem_cfg_addr;
+ rte_config.mem_config = rte_mem_cfg_addr;
}
/* Detect if we are a primary or a secondary process */
enum rte_proc_type_t ptype = RTE_PROC_PRIMARY;
const char *pathname = eal_runtime_config_path();
- /* if we can open the file but not get a write-lock we are a secondary
- * process. NOTE: if we get a file handle back, we keep that open
- * and don't close it to prevent a race condition between multiple opens */
- if (((mem_cfg_fd = open(pathname, O_RDWR)) >= 0) &&
- (fcntl(mem_cfg_fd, F_SETLK, &wr_lock) < 0))
- ptype = RTE_PROC_SECONDARY;
+ /* if there no shared config, there can be no secondary processes */
+ if (!internal_config.no_shconf) {
+ /* if we can open the file but not get a write-lock we are a
+ * secondary process. NOTE: if we get a file handle back, we
+ * keep that open and don't close it to prevent a race condition
+ * between multiple opens.
+ */
+ if (((mem_cfg_fd = open(pathname, O_RDWR)) >= 0) &&
+ (fcntl(mem_cfg_fd, F_SETLK, &wr_lock) < 0))
+ ptype = RTE_PROC_SECONDARY;
+ }
RTE_LOG(INFO, EAL, "Auto-detected process type: %s\n",
ptype == RTE_PROC_PRIMARY ? "PRIMARY" : "SECONDARY");
for (i = 0; i < internal_config.num_hugepage_sizes; i++) {
struct hugepage_info *hpi = &internal_config.hugepage_info[i];
- if (hpi->hugedir != NULL) {
+ if (strnlen(hpi->hugedir, sizeof(hpi->hugedir)) != 0) {
for (j = 0; j < RTE_MAX_NUMA_NODES; j++) {
size += hpi->hugepage_sz * hpi->num_pages[j];
}
optind = 1;
optreset = 1;
- eal_reset_internal_config(&internal_config);
-
while ((opt = getopt_long(argc, argvopt, eal_short_options,
eal_long_options, &option_index)) != EOF) {
continue;
switch (opt) {
+ case OPT_MBUF_POOL_OPS_NAME_NUM:
+ internal_config.user_mbuf_pool_ops_name =
+ strdup(optarg);
+ break;
case 'h':
eal_usage(prgname);
exit(EXIT_SUCCESS);
}
}
+ /* create runtime data directory */
+ if (internal_config.no_shconf == 0 &&
+ eal_create_runtime_dir() < 0) {
+ RTE_LOG(ERR, EAL, "Cannot create runtime directory\n");
+ ret = -1;
+ goto out;
+ }
+
if (eal_adjust_config(&internal_config) != 0) {
ret = -1;
goto out;
return ret;
}
+static int
+check_socket(const struct rte_memseg_list *msl, void *arg)
+{
+ int *socket_id = arg;
+
+ if (msl->socket_id == *socket_id && msl->memseg_arr.count != 0)
+ return 1;
+
+ return 0;
+}
+
static void
eal_check_mem_on_local_socket(void)
{
- const struct rte_memseg *ms;
- int i, socket_id;
+ int socket_id;
socket_id = rte_lcore_to_socket_id(rte_config.master_lcore);
- ms = rte_eal_get_physmem_layout();
-
- for (i = 0; i < RTE_MAX_MEMSEG; i++)
- if (ms[i].socket_id == socket_id &&
- ms[i].len > 0)
- return;
-
- RTE_LOG(WARNING, EAL, "WARNING: Master core has no "
- "memory on local socket!\n");
+ if (rte_memseg_list_walk(check_socket, &socket_id) == 0)
+ RTE_LOG(WARNING, EAL, "WARNING: Master core has no memory on local socket!\n");
}
+
static int
sync_func(__attribute__((unused)) void *arg)
{
return 0;
}
+static void rte_eal_init_alert(const char *msg)
+{
+ fprintf(stderr, "EAL: FATAL: %s\n", msg);
+ RTE_LOG(ERR, EAL, "%s\n", msg);
+}
+
/* Launch threads, called at application init(). */
int
rte_eal_init(int argc, char **argv)
char cpuset[RTE_CPU_AFFINITY_STR_LEN];
char thread_name[RTE_MAX_THREAD_NAME_LEN];
- if (!rte_atomic32_test_and_set(&run_once))
+ /* checks if the machine is adequate */
+ if (!rte_cpu_is_supported()) {
+ rte_eal_init_alert("unsupported cpu type.");
+ rte_errno = ENOTSUP;
return -1;
+ }
- thread_id = pthread_self();
+ if (!rte_atomic32_test_and_set(&run_once)) {
+ rte_eal_init_alert("already called initialization.");
+ rte_errno = EALREADY;
+ return -1;
+ }
- if (rte_eal_log_early_init() < 0)
- rte_panic("Cannot init early logs\n");
+ thread_id = pthread_self();
- eal_log_level_parse(argc, argv);
+ eal_reset_internal_config(&internal_config);
/* set log level as early as possible */
- rte_set_log_level(internal_config.log_level);
+ eal_log_level_parse(argc, argv);
- if (rte_eal_cpu_init() < 0)
- rte_panic("Cannot detect lcores\n");
+ if (rte_eal_cpu_init() < 0) {
+ rte_eal_init_alert("Cannot detect lcores.");
+ rte_errno = ENOTSUP;
+ return -1;
+ }
fctret = eal_parse_args(argc, argv);
- if (fctret < 0)
- exit(1);
+ if (fctret < 0) {
+ rte_eal_init_alert("Invalid 'command line' arguments.");
+ rte_errno = EINVAL;
+ rte_atomic32_clear(&run_once);
+ return -1;
+ }
+
+ /* FreeBSD always uses legacy memory model */
+ internal_config.legacy_mem = true;
- if (internal_config.no_hugetlbfs == 0 &&
- internal_config.process_type != RTE_PROC_SECONDARY &&
- eal_hugepage_info_init() < 0)
- rte_panic("Cannot get hugepage information\n");
+ if (eal_plugins_init() < 0) {
+ rte_eal_init_alert("Cannot init plugins\n");
+ rte_errno = EINVAL;
+ rte_atomic32_clear(&run_once);
+ return -1;
+ }
+
+ if (eal_option_device_parse()) {
+ rte_errno = ENODEV;
+ rte_atomic32_clear(&run_once);
+ return -1;
+ }
+
+ rte_config_init();
+
+ if (rte_eal_intr_init() < 0) {
+ rte_eal_init_alert("Cannot init interrupt-handling thread\n");
+ return -1;
+ }
+
+ /* Put mp channel init before bus scan so that we can init the vdev
+ * bus through mp channel in the secondary process before the bus scan.
+ */
+ if (rte_mp_channel_init() < 0) {
+ rte_eal_init_alert("failed to init mp channel\n");
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+ rte_errno = EFAULT;
+ return -1;
+ }
+ }
+
+ if (rte_bus_scan()) {
+ rte_eal_init_alert("Cannot scan the buses for devices\n");
+ rte_errno = ENODEV;
+ rte_atomic32_clear(&run_once);
+ return -1;
+ }
+
+ /* autodetect the iova mapping mode (default is iova_pa) */
+ rte_eal_get_configuration()->iova_mode = rte_bus_get_iommu_class();
+
+ if (internal_config.no_hugetlbfs == 0) {
+ /* rte_config isn't initialized yet */
+ ret = internal_config.process_type == RTE_PROC_PRIMARY ?
+ eal_hugepage_info_init() :
+ eal_hugepage_info_read();
+ if (ret < 0) {
+ rte_eal_init_alert("Cannot get hugepage information.");
+ rte_errno = EACCES;
+ rte_atomic32_clear(&run_once);
+ return -1;
+ }
+ }
if (internal_config.memory == 0 && internal_config.force_sockets == 0) {
if (internal_config.no_hugetlbfs)
rte_srand(rte_rdtsc());
- rte_config_init();
-
- if (rte_eal_memory_init() < 0)
- rte_panic("Cannot init memory\n");
-
- if (rte_eal_memzone_init() < 0)
- rte_panic("Cannot init memzone\n");
-
- if (rte_eal_tailqs_init() < 0)
- rte_panic("Cannot init tail queues for objects\n");
+ /* in secondary processes, memory init may allocate additional fbarrays
+ * not present in primary processes, so to avoid any potential issues,
+ * initialize memzones first.
+ */
+ if (rte_eal_memzone_init() < 0) {
+ rte_eal_init_alert("Cannot init memzone\n");
+ rte_errno = ENODEV;
+ return -1;
+ }
-/* if (rte_eal_log_init(argv[0], internal_config.syslog_facility) < 0)
- rte_panic("Cannot init logs\n");*/
+ if (rte_eal_memory_init() < 0) {
+ rte_eal_init_alert("Cannot init memory\n");
+ rte_errno = ENOMEM;
+ return -1;
+ }
- if (rte_eal_alarm_init() < 0)
- rte_panic("Cannot init interrupt-handling thread\n");
+ if (rte_eal_malloc_heap_init() < 0) {
+ rte_eal_init_alert("Cannot init malloc heap\n");
+ rte_errno = ENODEV;
+ return -1;
+ }
- if (rte_eal_intr_init() < 0)
- rte_panic("Cannot init interrupt-handling thread\n");
+ if (rte_eal_tailqs_init() < 0) {
+ rte_eal_init_alert("Cannot init tail queues for objects\n");
+ rte_errno = EFAULT;
+ return -1;
+ }
- if (rte_eal_timer_init() < 0)
- rte_panic("Cannot init HPET or TSC timers\n");
+ if (rte_eal_alarm_init() < 0) {
+ rte_eal_init_alert("Cannot init interrupt-handling thread\n");
+ /* rte_eal_alarm_init sets rte_errno on failure. */
+ return -1;
+ }
- if (rte_eal_pci_init() < 0)
- rte_panic("Cannot init PCI\n");
+ if (rte_eal_timer_init() < 0) {
+ rte_eal_init_alert("Cannot init HPET or TSC timers\n");
+ rte_errno = ENOTSUP;
+ return -1;
+ }
eal_check_mem_on_local_socket();
- if (eal_plugins_init() < 0)
- rte_panic("Cannot init plugins\n");
-
eal_thread_init_master(rte_config.master_lcore);
- ret = eal_thread_dump_affinity(cpuset, RTE_CPU_AFFINITY_STR_LEN);
+ ret = eal_thread_dump_affinity(cpuset, sizeof(cpuset));
RTE_LOG(DEBUG, EAL, "Master lcore %u is ready (tid=%p;cpuset=[%s%s])\n",
rte_config.master_lcore, thread_id, cpuset,
ret == 0 ? "" : "...");
- if (rte_eal_dev_init() < 0)
- rte_panic("Cannot init pmd devices\n");
-
RTE_LCORE_FOREACH_SLAVE(i) {
/*
rte_panic("Cannot create thread\n");
/* Set thread_name for aid in debugging. */
- snprintf(thread_name, RTE_MAX_THREAD_NAME_LEN,
+ snprintf(thread_name, sizeof(thread_name),
"lcore-slave-%d", i);
- pthread_set_name_np(lcore_config[i].thread_id, thread_name);
+ rte_thread_setname(lcore_config[i].thread_id, thread_name);
}
/*
rte_eal_mp_remote_launch(sync_func, NULL, SKIP_MASTER);
rte_eal_mp_wait_lcore();
- /* Probe & Initialize PCI devices */
- if (rte_eal_pci_probe())
- rte_panic("Cannot probe PCI\n");
+ /* initialize services so vdevs register service during bus_probe. */
+ ret = rte_service_init();
+ if (ret) {
+ rte_eal_init_alert("rte_service_init() failed\n");
+ rte_errno = ENOEXEC;
+ return -1;
+ }
+
+ /* Probe all the buses and devices/drivers on them */
+ if (rte_bus_probe()) {
+ rte_eal_init_alert("Cannot probe devices\n");
+ rte_errno = ENOTSUP;
+ return -1;
+ }
+
+ /* initialize default service/lcore mappings and start running. Ignore
+ * -ENOTSUP, as it indicates no service coremask passed to EAL.
+ */
+ ret = rte_service_start_with_defaults();
+ if (ret < 0 && ret != -ENOTSUP) {
+ rte_errno = ENOEXEC;
+ return -1;
+ }
rte_eal_mcfg_complete();
return fctret;
}
+int __rte_experimental
+rte_eal_cleanup(void)
+{
+ rte_service_finalize();
+ return 0;
+}
+
/* get core role */
enum rte_lcore_role_t
rte_eal_lcore_role(unsigned lcore_id)
{
return rte_config.process_type;
}
+
+int rte_eal_has_pci(void)
+{
+ return !internal_config.no_pci;
+}
+
+int rte_eal_create_uio_dev(void)
+{
+ return internal_config.create_uio_dev;
+}
+
+enum rte_intr_mode
+rte_eal_vfio_intr_mode(void)
+{
+ return RTE_INTR_MODE_NONE;
+}
+
+int rte_vfio_setup_device(__rte_unused const char *sysfs_base,
+ __rte_unused const char *dev_addr,
+ __rte_unused int *vfio_dev_fd,
+ __rte_unused struct vfio_device_info *device_info)
+{
+ return -1;
+}
+
+int rte_vfio_release_device(__rte_unused const char *sysfs_base,
+ __rte_unused const char *dev_addr,
+ __rte_unused int fd)
+{
+ return -1;
+}
+
+int rte_vfio_enable(__rte_unused const char *modname)
+{
+ return -1;
+}
+
+int rte_vfio_is_enabled(__rte_unused const char *modname)
+{
+ return 0;
+}
+
+int rte_vfio_noiommu_is_enabled(void)
+{
+ return 0;
+}
+
+int rte_vfio_clear_group(__rte_unused int vfio_group_fd)
+{
+ return 0;
+}
+
+int
+rte_vfio_dma_map(uint64_t __rte_unused vaddr, __rte_unused uint64_t iova,
+ __rte_unused uint64_t len)
+{
+ return -1;
+}
+
+int
+rte_vfio_dma_unmap(uint64_t __rte_unused vaddr, uint64_t __rte_unused iova,
+ __rte_unused uint64_t len)
+{
+ return -1;
+}
+
+int
+rte_vfio_get_group_num(__rte_unused const char *sysfs_base,
+ __rte_unused const char *dev_addr,
+ __rte_unused int *iommu_group_num)
+{
+ return -1;
+}
+
+int
+rte_vfio_get_container_fd(void)
+{
+ return -1;
+}
+
+int
+rte_vfio_get_group_fd(__rte_unused int iommu_group_num)
+{
+ return -1;
+}
+
+int
+rte_vfio_container_create(void)
+{
+ return -1;
+}
+
+int
+rte_vfio_container_destroy(__rte_unused int container_fd)
+{
+ return -1;
+}
+
+int
+rte_vfio_container_group_bind(__rte_unused int container_fd,
+ __rte_unused int iommu_group_num)
+{
+ return -1;
+}
+
+int
+rte_vfio_container_group_unbind(__rte_unused int container_fd,
+ __rte_unused int iommu_group_num)
+{
+ return -1;
+}
+
+int
+rte_vfio_container_dma_map(__rte_unused int container_fd,
+ __rte_unused uint64_t vaddr,
+ __rte_unused uint64_t iova,
+ __rte_unused uint64_t len)
+{
+ return -1;
+}
+
+int
+rte_vfio_container_dma_unmap(__rte_unused int container_fd,
+ __rte_unused uint64_t vaddr,
+ __rte_unused uint64_t iova,
+ __rte_unused uint64_t len)
+{
+ return -1;
+}
git.droids-corp.org / dpdk.git / blobdiff