X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_eal%2Flinuxapp%2Feal%2Feal.c;h=451fdaf7acd24240769c76fbfa774d98ce1ef9c7;hb=5c7472135ba8d91d608d89c9311a7d80bda7bee7;hp=bf6b818c83a59b52c9d2ca8dee1cd96a81f12c8b;hpb=c3cec1d8070860b3f68f3418b876a511fb99e981;p=dpdk.git diff --git a/lib/librte_eal/linuxapp/eal/eal.c b/lib/librte_eal/linuxapp/eal/eal.c index bf6b818c83..451fdaf7ac 100644 --- a/lib/librte_eal/linuxapp/eal/eal.c +++ b/lib/librte_eal/linuxapp/eal/eal.c @@ -1,35 +1,6 @@ -/*- - * BSD LICENSE - * - * Copyright(c) 2010-2016 Intel Corporation. All rights reserved. - * Copyright(c) 2012-2014 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) 2012-2014 6WIND S.A. */ #include @@ -46,7 +17,6 @@ #include #include #include -#include #include #include #include @@ -54,15 +24,17 @@ #include #endif +#include #include #include #include -#include #include #include #include +#include #include #include +#include #include #include #include @@ -70,13 +42,12 @@ #include #include #include -#include #include #include -#include #include #include #include +#include #include "eal_private.h" #include "eal_thread.h" @@ -121,6 +92,16 @@ struct internal_config internal_config; /* used by rte_rdtsc() */ int rte_cycles_vmware_tsc_map; +/* Return mbuf pool ops name */ +const char * +rte_eal_mbuf_default_mempool_ops(void) +{ + if (internal_config.user_mbuf_pool_ops_name == NULL) + return RTE_MBUF_DEFAULT_MEMPOOL_OPS; + + return internal_config.user_mbuf_pool_ops_name; +} + /* Return a pointer to the configuration structure */ struct rte_config * rte_eal_get_configuration(void) @@ -128,6 +109,12 @@ 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) @@ -211,7 +198,7 @@ rte_eal_config_create(void) 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; /* store address of the config in the config itself so that secondary * processes could later map the config into this exact location */ @@ -354,7 +341,6 @@ eal_usage(const char *prgname) " --"OPT_BASE_VIRTADDR" Base virtual address\n" " --"OPT_CREATE_UIO_DEV" Create /dev/uioX (usually done by hotplug)\n" " --"OPT_VFIO_INTR" Interrupt mode for VFIO (legacy|msi|msix)\n" - " --"OPT_XEN_DOM0" Support running on Xen dom0 without hugetlbfs\n" "\n"); /* Allow the application to print its usage message too if hook is set */ if ( rte_application_usage_hook ) { @@ -491,8 +477,6 @@ eal_log_level_parse(int argc, char **argv) argvopt = argv; optind = 1; - eal_reset_internal_config(&internal_config); - while ((opt = getopt_long(argc, argvopt, eal_short_options, eal_long_options, &option_index)) != EOF) { @@ -557,25 +541,12 @@ eal_parse_args(int argc, char **argv) eal_usage(prgname); exit(EXIT_SUCCESS); - /* long options */ - case OPT_XEN_DOM0_NUM: -#ifdef RTE_LIBRTE_XEN_DOM0 - internal_config.xen_dom0_support = 1; -#else - RTE_LOG(ERR, EAL, "Can't support DPDK app " - "running on Dom0, please configure" - " RTE_LIBRTE_XEN_DOM0=y\n"); - ret = -1; - goto out; -#endif - break; - case OPT_HUGE_DIR_NUM: - internal_config.hugepage_dir = optarg; + internal_config.hugepage_dir = strdup(optarg); break; case OPT_FILE_PREFIX_NUM: - internal_config.hugefile_prefix = optarg; + internal_config.hugefile_prefix = strdup(optarg); break; case OPT_SOCKET_MEM_NUM: @@ -612,6 +583,10 @@ eal_parse_args(int argc, char **argv) internal_config.create_uio_dev = 1; break; + case OPT_MBUF_POOL_OPS_NAME_NUM: + internal_config.user_mbuf_pool_ops_name = optarg; + break; + default: if (opt < OPT_LONG_MIN_NUM && isprint(opt)) { RTE_LOG(ERR, EAL, "Option %c is not supported " @@ -643,15 +618,6 @@ eal_parse_args(int argc, char **argv) goto out; } - /* --xen-dom0 doesn't make sense with --socket-mem */ - if (internal_config.xen_dom0_support && internal_config.force_sockets == 1) { - RTE_LOG(ERR, EAL, "Options --"OPT_SOCKET_MEM" cannot be specified " - "together with --"OPT_XEN_DOM0"\n"); - eal_usage(prgname); - ret = -1; - goto out; - } - if (optind >= 0) argv[optind-1] = prgname; ret = optind-1; @@ -718,10 +684,9 @@ static int rte_eal_vfio_setup(void) { int vfio_enabled = 0; - if (!internal_config.no_pci) { - pci_vfio_enable(); - vfio_enabled |= pci_vfio_is_enabled(); - } + if (rte_vfio_enable("vfio")) + return -1; + vfio_enabled = rte_vfio_is_enabled("vfio"); if (vfio_enabled) { @@ -740,6 +705,12 @@ static int rte_eal_vfio_setup(void) } #endif +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) @@ -752,33 +723,82 @@ rte_eal_init(int argc, char **argv) char thread_name[RTE_MAX_THREAD_NAME_LEN]; /* checks if the machine is adequate */ - rte_cpu_check_supported(); + if (!rte_cpu_is_supported()) { + rte_eal_init_alert("unsupported cpu type."); + rte_errno = ENOTSUP; + return -1; + } - if (!rte_atomic32_test_and_set(&run_once)) + if (!rte_atomic32_test_and_set(&run_once)) { + rte_eal_init_alert("already called initialization."); + rte_errno = EALREADY; return -1; + } logid = strrchr(argv[0], '/'); logid = strdup(logid ? logid + 1: argv[0]); 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; + } + + 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; + } + + 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(); + + /* Workaround for KNI which requires physical address to work */ + if (rte_eal_get_configuration()->iova_mode == RTE_IOVA_VA && + rte_eal_check_module("rte_kni") == 1) { + rte_eal_get_configuration()->iova_mode = RTE_IOVA_PA; + RTE_LOG(WARNING, EAL, + "Some devices want IOVA as VA but PA will be used because.. " + "KNI module inserted\n"); + } if (internal_config.no_hugetlbfs == 0 && internal_config.process_type != RTE_PROC_SECONDARY && - internal_config.xen_dom0_support == 0 && - eal_hugepage_info_init() < 0) - rte_panic("Cannot get hugepage information\n"); + eal_hugepage_info_init() < 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) @@ -800,40 +820,65 @@ rte_eal_init(int argc, char **argv) rte_config_init(); - if (rte_eal_log_init(logid, internal_config.syslog_facility) < 0) - rte_panic("Cannot init logs\n"); + if (rte_eal_log_init(logid, internal_config.syslog_facility) < 0) { + rte_eal_init_alert("Cannot init logging."); + rte_errno = ENOMEM; + rte_atomic32_clear(&run_once); + return -1; + } - if (rte_eal_pci_init() < 0) - rte_panic("Cannot init PCI\n"); + 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; + } + } #ifdef VFIO_PRESENT - if (rte_eal_vfio_setup() < 0) - rte_panic("Cannot init VFIO\n"); + if (rte_eal_vfio_setup() < 0) { + rte_eal_init_alert("Cannot init VFIO\n"); + rte_errno = EAGAIN; + rte_atomic32_clear(&run_once); + return -1; + } #endif - if (rte_eal_memory_init() < 0) - rte_panic("Cannot init memory\n"); + if (rte_eal_memory_init() < 0) { + rte_eal_init_alert("Cannot init memory\n"); + rte_errno = ENOMEM; + return -1; + } /* the directories are locked during eal_hugepage_info_init */ eal_hugedirs_unlock(); - if (rte_eal_memzone_init() < 0) - rte_panic("Cannot init memzone\n"); + if (rte_eal_memzone_init() < 0) { + rte_eal_init_alert("Cannot init memzone\n"); + rte_errno = ENODEV; + return -1; + } - if (rte_eal_tailqs_init() < 0) - rte_panic("Cannot init tail queues for objects\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_alarm_init() < 0) - rte_panic("Cannot init interrupt-handling thread\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_timer_init() < 0) - rte_panic("Cannot init HPET or TSC timers\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); @@ -842,11 +887,10 @@ rte_eal_init(int argc, char **argv) rte_config.master_lcore, (int)thread_id, cpuset, ret == 0 ? "" : "..."); - if (rte_eal_intr_init() < 0) - rte_panic("Cannot init interrupt-handling thread\n"); - - if (rte_bus_scan()) - rte_panic("Cannot scan the buses for devices\n"); + if (rte_eal_intr_init() < 0) { + rte_eal_init_alert("Cannot init interrupt-handling thread\n"); + return -1; + } RTE_LCORE_FOREACH_SLAVE(i) { @@ -884,22 +928,42 @@ rte_eal_init(int argc, char **argv) rte_eal_mp_remote_launch(sync_func, NULL, SKIP_MASTER); rte_eal_mp_wait_lcore(); - /* Probe all the buses and devices/drivers on them */ - if (rte_bus_probe()) - rte_panic("Cannot probe devices\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 & Initialize PCI devices */ - if (rte_eal_pci_probe()) - rte_panic("Cannot probe PCI\n"); + /* 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; + } - if (rte_eal_dev_init() < 0) - rte_panic("Cannot init pmd devices\n"); + /* 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) @@ -918,6 +982,22 @@ int rte_eal_has_hugepages(void) return ! internal_config.no_hugetlbfs; } +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 internal_config.vfio_intr_mode; +} + int rte_eal_check_module(const char *module_name) {