New upstream version 18.11.2
[deb_dpdk.git] / lib / librte_eal / common / eal_common_options.c
index dd5f974..d4ab5e2 100644 (file)
@@ -58,6 +58,7 @@ eal_long_options[] = {
        {OPT_HELP,              0, NULL, OPT_HELP_NUM             },
        {OPT_HUGE_DIR,          1, NULL, OPT_HUGE_DIR_NUM         },
        {OPT_HUGE_UNLINK,       0, NULL, OPT_HUGE_UNLINK_NUM      },
+       {OPT_IOVA_MODE,         1, NULL, OPT_IOVA_MODE_NUM        },
        {OPT_LCORES,            1, NULL, OPT_LCORES_NUM           },
        {OPT_LOG_LEVEL,         1, NULL, OPT_LOG_LEVEL_NUM        },
        {OPT_MASTER_LCORE,      1, NULL, OPT_MASTER_LCORE_NUM     },
@@ -167,6 +168,14 @@ eal_option_device_parse(void)
        return ret;
 }
 
+const char *
+eal_get_hugefile_prefix(void)
+{
+       if (internal_config.hugefile_prefix != NULL)
+               return internal_config.hugefile_prefix;
+       return HUGEFILE_PREFIX_DEFAULT;
+}
+
 void
 eal_reset_internal_config(struct internal_config *internal_cfg)
 {
@@ -175,7 +184,7 @@ eal_reset_internal_config(struct internal_config *internal_cfg)
        internal_cfg->memory = 0;
        internal_cfg->force_nrank = 0;
        internal_cfg->force_nchannel = 0;
-       internal_cfg->hugefile_prefix = HUGEFILE_PREFIX_DEFAULT;
+       internal_cfg->hugefile_prefix = NULL;
        internal_cfg->hugepage_dir = NULL;
        internal_cfg->force_sockets = 0;
        /* zero out the NUMA config */
@@ -205,7 +214,9 @@ eal_reset_internal_config(struct internal_config *internal_cfg)
 #endif
        internal_cfg->vmware_tsc_map = 0;
        internal_cfg->create_uio_dev = 0;
+       internal_cfg->iova_mode = RTE_IOVA_DC;
        internal_cfg->user_mbuf_pool_ops_name = NULL;
+       CPU_ZERO(&internal_cfg->ctrl_cpuset);
        internal_cfg->init_complete = 0;
 }
 
@@ -220,7 +231,7 @@ eal_plugin_add(const char *path)
                return -1;
        }
        memset(solib, 0, sizeof(*solib));
-       strncpy(solib->name, path, PATH_MAX-1);
+       strlcpy(solib->name, path, PATH_MAX-1);
        solib->name[PATH_MAX-1] = 0;
        TAILQ_INSERT_TAIL(&solib_list, solib, next);
 
@@ -407,21 +418,44 @@ eal_service_cores_parsed(void)
 }
 
 static int
-eal_parse_coremask(const char *coremask)
+update_lcore_config(int *cores)
 {
        struct rte_config *cfg = rte_eal_get_configuration();
-       int i, j, idx = 0;
+       unsigned int count = 0;
+       unsigned int i;
+       int ret = 0;
+
+       for (i = 0; i < RTE_MAX_LCORE; i++) {
+               if (cores[i] != -1) {
+                       if (!lcore_config[i].detected) {
+                               RTE_LOG(ERR, EAL, "lcore %u unavailable\n", i);
+                               ret = -1;
+                               continue;
+                       }
+                       cfg->lcore_role[i] = ROLE_RTE;
+                       count++;
+               } else {
+                       cfg->lcore_role[i] = ROLE_OFF;
+               }
+               lcore_config[i].core_index = cores[i];
+       }
+       if (!ret)
+               cfg->lcore_count = count;
+       return ret;
+}
+
+static int
+eal_parse_coremask(const char *coremask, int *cores)
+{
        unsigned count = 0;
-       char c;
+       int i, j, idx;
        int val;
+       char c;
 
-       if (eal_service_cores_parsed())
-               RTE_LOG(WARNING, EAL,
-                       "Service cores parsed before dataplane cores. "
-                       "Please ensure -c is before -s or -S\n");
+       for (idx = 0; idx < RTE_MAX_LCORE; idx++)
+               cores[idx] = -1;
+       idx = 0;
 
-       if (coremask == NULL)
-               return -1;
        /* Remove all blank characters ahead and after .
         * Remove 0x/0X if exists.
         */
@@ -446,32 +480,16 @@ eal_parse_coremask(const char *coremask)
                for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++)
                {
                        if ((1 << j) & val) {
-                               if (!lcore_config[idx].detected) {
-                                       RTE_LOG(ERR, EAL, "lcore %u "
-                                               "unavailable\n", idx);
-                                       return -1;
-                               }
-
-                               cfg->lcore_role[idx] = ROLE_RTE;
-                               lcore_config[idx].core_index = count;
+                               cores[idx] = count;
                                count++;
-                       } else {
-                               cfg->lcore_role[idx] = ROLE_OFF;
-                               lcore_config[idx].core_index = -1;
                        }
                }
        }
        for (; i >= 0; i--)
                if (coremask[i] != '0')
                        return -1;
-       for (; idx < RTE_MAX_LCORE; idx++) {
-               cfg->lcore_role[idx] = ROLE_OFF;
-               lcore_config[idx].core_index = -1;
-       }
        if (count == 0)
                return -1;
-       /* Update the count of enabled logical cores of the EAL configuration */
-       cfg->lcore_count = count;
        return 0;
 }
 
@@ -552,34 +570,19 @@ eal_parse_service_corelist(const char *corelist)
 }
 
 static int
-eal_parse_corelist(const char *corelist)
+eal_parse_corelist(const char *corelist, int *cores)
 {
-       struct rte_config *cfg = rte_eal_get_configuration();
-       int i, idx = 0;
        unsigned count = 0;
        char *end = NULL;
        int min, max;
+       int idx;
 
-       if (eal_service_cores_parsed())
-               RTE_LOG(WARNING, EAL,
-                       "Service cores parsed before dataplane cores. "
-                       "Please ensure -l is before -s or -S\n");
+       for (idx = 0; idx < RTE_MAX_LCORE; idx++)
+               cores[idx] = -1;
 
-       if (corelist == NULL)
-               return -1;
-
-       /* Remove all blank characters ahead and after */
+       /* Remove all blank characters ahead */
        while (isblank(*corelist))
                corelist++;
-       i = strlen(corelist);
-       while ((i > 0) && isblank(corelist[i - 1]))
-               i--;
-
-       /* Reset config */
-       for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
-               cfg->lcore_role[idx] = ROLE_OFF;
-               lcore_config[idx].core_index = -1;
-       }
 
        /* Get list of cores */
        min = RTE_MAX_LCORE;
@@ -589,9 +592,11 @@ eal_parse_corelist(const char *corelist)
                if (*corelist == '\0')
                        return -1;
                errno = 0;
-               idx = strtoul(corelist, &end, 10);
+               idx = strtol(corelist, &end, 10);
                if (errno || end == NULL)
                        return -1;
+               if (idx < 0 || idx >= RTE_MAX_LCORE)
+                       return -1;
                while (isblank(*end))
                        end++;
                if (*end == '-') {
@@ -601,9 +606,8 @@ eal_parse_corelist(const char *corelist)
                        if (min == RTE_MAX_LCORE)
                                min = idx;
                        for (idx = min; idx <= max; idx++) {
-                               if (cfg->lcore_role[idx] != ROLE_RTE) {
-                                       cfg->lcore_role[idx] = ROLE_RTE;
-                                       lcore_config[idx].core_index = count;
+                               if (cores[idx] == -1) {
+                                       cores[idx] = count;
                                        count++;
                                }
                        }
@@ -615,10 +619,6 @@ eal_parse_corelist(const char *corelist)
 
        if (count == 0)
                return -1;
-
-       /* Update the count of enabled logical cores of the EAL configuration */
-       cfg->lcore_count = count;
-
        return 0;
 }
 
@@ -1075,6 +1075,94 @@ eal_parse_proc_type(const char *arg)
        return RTE_PROC_INVALID;
 }
 
+static int
+eal_parse_iova_mode(const char *name)
+{
+       int mode;
+
+       if (name == NULL)
+               return -1;
+
+       if (!strcmp("pa", name))
+               mode = RTE_IOVA_PA;
+       else if (!strcmp("va", name))
+               mode = RTE_IOVA_VA;
+       else
+               return -1;
+
+       internal_config.iova_mode = mode;
+       return 0;
+}
+
+/* caller is responsible for freeing the returned string */
+static char *
+available_cores(void)
+{
+       char *str = NULL;
+       int previous;
+       int sequence;
+       char *tmp;
+       int idx;
+
+       /* find the first available cpu */
+       for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
+               if (!lcore_config[idx].detected)
+                       continue;
+               break;
+       }
+       if (idx >= RTE_MAX_LCORE)
+               return NULL;
+
+       /* first sequence */
+       if (asprintf(&str, "%d", idx) < 0)
+               return NULL;
+       previous = idx;
+       sequence = 0;
+
+       for (idx++ ; idx < RTE_MAX_LCORE; idx++) {
+               if (!lcore_config[idx].detected)
+                       continue;
+
+               if (idx == previous + 1) {
+                       previous = idx;
+                       sequence = 1;
+                       continue;
+               }
+
+               /* finish current sequence */
+               if (sequence) {
+                       if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
+                               free(str);
+                               return NULL;
+                       }
+                       free(str);
+                       str = tmp;
+               }
+
+               /* new sequence */
+               if (asprintf(&tmp, "%s,%d", str, idx) < 0) {
+                       free(str);
+                       return NULL;
+               }
+               free(str);
+               str = tmp;
+               previous = idx;
+               sequence = 0;
+       }
+
+       /* finish last sequence */
+       if (sequence) {
+               if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
+                       free(str);
+                       return NULL;
+               }
+               free(str);
+               str = tmp;
+       }
+
+       return str;
+}
+
 int
 eal_parse_common_option(int opt, const char *optarg,
                        struct internal_config *conf)
@@ -1104,9 +1192,23 @@ eal_parse_common_option(int opt, const char *optarg,
                w_used = 1;
                break;
        /* coremask */
-       case 'c':
-               if (eal_parse_coremask(optarg) < 0) {
-                       RTE_LOG(ERR, EAL, "invalid coremask\n");
+       case 'c': {
+               int lcore_indexes[RTE_MAX_LCORE];
+
+               if (eal_service_cores_parsed())
+                       RTE_LOG(WARNING, EAL,
+                               "Service cores parsed before dataplane cores. Please ensure -c is before -s or -S\n");
+               if (eal_parse_coremask(optarg, lcore_indexes) < 0) {
+                       RTE_LOG(ERR, EAL, "invalid coremask syntax\n");
+                       return -1;
+               }
+               if (update_lcore_config(lcore_indexes) < 0) {
+                       char *available = available_cores();
+
+                       RTE_LOG(ERR, EAL,
+                               "invalid coremask, please check specified cores are part of %s\n",
+                               available);
+                       free(available);
                        return -1;
                }
 
@@ -1120,10 +1222,26 @@ eal_parse_common_option(int opt, const char *optarg,
 
                core_parsed = LCORE_OPT_MSK;
                break;
+       }
        /* corelist */
-       case 'l':
-               if (eal_parse_corelist(optarg) < 0) {
-                       RTE_LOG(ERR, EAL, "invalid core list\n");
+       case 'l': {
+               int lcore_indexes[RTE_MAX_LCORE];
+
+               if (eal_service_cores_parsed())
+                       RTE_LOG(WARNING, EAL,
+                               "Service cores parsed before dataplane cores. Please ensure -l is before -s or -S\n");
+
+               if (eal_parse_corelist(optarg, lcore_indexes) < 0) {
+                       RTE_LOG(ERR, EAL, "invalid core list syntax\n");
+                       return -1;
+               }
+               if (update_lcore_config(lcore_indexes) < 0) {
+                       char *available = available_cores();
+
+                       RTE_LOG(ERR, EAL,
+                               "invalid core list, please check specified cores are part of %s\n",
+                               available);
+                       free(available);
                        return -1;
                }
 
@@ -1137,6 +1255,7 @@ eal_parse_common_option(int opt, const char *optarg,
 
                core_parsed = LCORE_OPT_LST;
                break;
+       }
        /* service coremask */
        case 's':
                if (eal_parse_service_coremask(optarg) < 0) {
@@ -1281,6 +1400,13 @@ eal_parse_common_option(int opt, const char *optarg,
        case OPT_SINGLE_FILE_SEGMENTS_NUM:
                conf->single_file_segments = 1;
                break;
+       case OPT_IOVA_MODE_NUM:
+               if (eal_parse_iova_mode(optarg) < 0) {
+                       RTE_LOG(ERR, EAL, "invalid parameters for --"
+                               OPT_IOVA_MODE "\n");
+                       return -1;
+               }
+               break;
 
        /* don't know what to do, leave this to caller */
        default:
@@ -1301,10 +1427,9 @@ eal_auto_detect_cores(struct rte_config *cfg)
        unsigned int lcore_id;
        unsigned int removed = 0;
        rte_cpuset_t affinity_set;
-       pthread_t tid = pthread_self();
 
-       if (pthread_getaffinity_np(tid, sizeof(rte_cpuset_t),
-                               &affinity_set) < 0)
+       if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
+                               &affinity_set))
                CPU_ZERO(&affinity_set);
 
        for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
@@ -1318,6 +1443,44 @@ eal_auto_detect_cores(struct rte_config *cfg)
        cfg->lcore_count -= removed;
 }
 
+static void
+compute_ctrl_threads_cpuset(struct internal_config *internal_cfg)
+{
+       rte_cpuset_t *cpuset = &internal_cfg->ctrl_cpuset;
+       rte_cpuset_t default_set;
+       unsigned int lcore_id;
+
+       for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+               if (eal_cpu_detected(lcore_id) &&
+                               rte_lcore_has_role(lcore_id, ROLE_OFF)) {
+                       CPU_SET(lcore_id, cpuset);
+               }
+       }
+
+       if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
+                               &default_set))
+               CPU_ZERO(&default_set);
+
+       RTE_CPU_AND(cpuset, cpuset, &default_set);
+
+       /* if no detected CPU is off, use master core */
+       if (!CPU_COUNT(cpuset))
+               CPU_SET(rte_get_master_lcore(), cpuset);
+}
+
+int
+eal_cleanup_config(struct internal_config *internal_cfg)
+{
+       if (internal_cfg->hugefile_prefix != NULL)
+               free(internal_cfg->hugefile_prefix);
+       if (internal_cfg->hugepage_dir != NULL)
+               free(internal_cfg->hugepage_dir);
+       if (internal_cfg->user_mbuf_pool_ops_name != NULL)
+               free(internal_cfg->user_mbuf_pool_ops_name);
+
+       return 0;
+}
+
 int
 eal_adjust_config(struct internal_config *internal_cfg)
 {
@@ -1333,9 +1496,13 @@ eal_adjust_config(struct internal_config *internal_cfg)
        /* default master lcore is the first one */
        if (!master_lcore_parsed) {
                cfg->master_lcore = rte_get_next_lcore(-1, 0, 0);
+               if (cfg->master_lcore >= RTE_MAX_LCORE)
+                       return -1;
                lcore_config[cfg->master_lcore].core_role = ROLE_RTE;
        }
 
+       compute_ctrl_threads_cpuset(internal_cfg);
+
        /* if no memory amounts were requested, this will result in 0 and
         * will be overridden later, right after eal_hugepage_info_init() */
        for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
@@ -1358,7 +1525,22 @@ eal_check_common_options(struct internal_config *internal_cfg)
                RTE_LOG(ERR, EAL, "Invalid process type specified\n");
                return -1;
        }
-       if (index(internal_cfg->hugefile_prefix, '%') != NULL) {
+       if (internal_cfg->hugefile_prefix != NULL &&
+                       strlen(internal_cfg->hugefile_prefix) < 1) {
+               RTE_LOG(ERR, EAL, "Invalid length of --" OPT_FILE_PREFIX " option\n");
+               return -1;
+       }
+       if (internal_cfg->hugepage_dir != NULL &&
+                       strlen(internal_cfg->hugepage_dir) < 1) {
+               RTE_LOG(ERR, EAL, "Invalid length of --" OPT_HUGE_DIR" option\n");
+               return -1;
+       }
+       if (internal_cfg->user_mbuf_pool_ops_name != NULL &&
+                       strlen(internal_cfg->user_mbuf_pool_ops_name) < 1) {
+               RTE_LOG(ERR, EAL, "Invalid length of --" OPT_MBUF_POOL_OPS_NAME" option\n");
+               return -1;
+       }
+       if (index(eal_get_hugefile_prefix(), '%') != NULL) {
                RTE_LOG(ERR, EAL, "Invalid char, '%%', in --"OPT_FILE_PREFIX" "
                        "option\n");
                return -1;
@@ -1384,10 +1566,16 @@ eal_check_common_options(struct internal_config *internal_cfg)
                        " is only supported in non-legacy memory mode\n");
        }
        if (internal_cfg->single_file_segments &&
-                       internal_cfg->hugepage_unlink) {
+                       internal_cfg->hugepage_unlink &&
+                       !internal_cfg->in_memory) {
                RTE_LOG(ERR, EAL, "Option --"OPT_SINGLE_FILE_SEGMENTS" is "
-                       "not compatible with neither --"OPT_IN_MEMORY" nor "
-                       "--"OPT_HUGE_UNLINK"\n");
+                       "not compatible with --"OPT_HUGE_UNLINK"\n");
+               return -1;
+       }
+       if (internal_cfg->legacy_mem &&
+                       internal_cfg->in_memory) {
+               RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
+                               "with --"OPT_IN_MEMORY"\n");
                return -1;
        }
 
@@ -1428,6 +1616,8 @@ eal_common_usage(void)
               "  --"OPT_VDEV"              Add a virtual device.\n"
               "                      The argument format is <driver><id>[,key=val,...]\n"
               "                      (ex: --vdev=net_pcap0,iface=eth2).\n"
+              "  --"OPT_IOVA_MODE"   Set IOVA mode. 'pa' for IOVA_PA\n"
+              "                      'va' for IOVA_VA\n"
               "  -d LIB.so|DIR       Add a driver or driver directory\n"
               "                      (can be used multiple times)\n"
               "  --"OPT_VMWARE_TSC_MAP"    Use VMware TSC map instead of native RDTSC\n"