eal: add option to limit memory allocation on sockets

[dpdk.git] / lib / librte_eal / common / eal_common_options.c

diff --git a/lib/librte_eal/common/eal_common_options.c b/lib/librte_eal/common/eal_common_options.c
index ecebb29..45ea01a 100644 (file)
--- a/lib/librte_eal/common/eal_common_options.c
+++ b/lib/librte_eal/common/eal_common_options.c
@@ -70,6 +70,7 @@ eal_long_options[] = {
        {OPT_PCI_WHITELIST,     1, NULL, OPT_PCI_WHITELIST_NUM    },
        {OPT_PROC_TYPE,         1, NULL, OPT_PROC_TYPE_NUM        },
        {OPT_SOCKET_MEM,        1, NULL, OPT_SOCKET_MEM_NUM       },
+       {OPT_SOCKET_LIMIT,      1, NULL, OPT_SOCKET_LIMIT_NUM     },
        {OPT_SYSLOG,            1, NULL, OPT_SYSLOG_NUM           },
        {OPT_VDEV,              1, NULL, OPT_VDEV_NUM             },
        {OPT_VFIO_INTR,         1, NULL, OPT_VFIO_INTR_NUM        },
@@ -179,6 +180,10 @@ eal_reset_internal_config(struct internal_config *internal_cfg)
        /* zero out the NUMA config */
        for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
                internal_cfg->socket_mem[i] = 0;
+       internal_cfg->force_socket_limits = 0;
+       /* zero out the NUMA limits config */
+       for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
+               internal_cfg->socket_limit[i] = 0;
        /* zero out hugedir descriptors */
        for (i = 0; i < MAX_HUGEPAGE_SIZES; i++) {
                memset(&internal_cfg->hugepage_info[i], 0,
@@ -1322,6 +1327,11 @@ eal_check_common_options(struct internal_config *internal_cfg)
                        "be specified together with --"OPT_NO_HUGE"\n");
                return -1;
        }
+       if (internal_config.force_socket_limits && internal_config.legacy_mem) {
+               RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_LIMIT
+                       " is only supported in non-legacy memory mode\n");
+               return -1;
+       }
 
        return 0;
 }