eal: add API to lock/unlock tailq list

[dpdk.git] / lib / librte_eal / common / include / rte_eal_memconfig.h

diff --git a/lib/librte_eal/common/include/rte_eal_memconfig.h b/lib/librte_eal/common/include/rte_eal_memconfig.h
index 62a21c2..240fa15 100644 (file)
--- a/lib/librte_eal/common/include/rte_eal_memconfig.h
+++ b/lib/librte_eal/common/include/rte_eal_memconfig.h
@@ -30,9 +30,11 @@ struct rte_memseg_list {
                uint64_t addr_64;
                /**< Makes sure addr is always 64-bits */
        };
-       int socket_id; /**< Socket ID for all memsegs in this list. */
        uint64_t page_sz; /**< Page size for all memsegs in this list. */
+       int socket_id; /**< Socket ID for all memsegs in this list. */
        volatile uint32_t version; /**< version number for multiprocess sync. */
+       size_t len; /**< Length of memory area covered by this memseg list. */
+       unsigned int external; /**< 1 if this list points to external memory */
        struct rte_fbarray memseg_arr;
 };
 
@@ -70,8 +72,11 @@ struct rte_mem_config {
 
        struct rte_tailq_head tailq_head[RTE_MAX_TAILQ]; /**< Tailqs for objects */
 
-       /* Heaps of Malloc per socket */
-       struct malloc_heap malloc_heaps[RTE_MAX_NUMA_NODES];
+       /* Heaps of Malloc */
+       struct malloc_heap malloc_heaps[RTE_MAX_HEAPS];
+
+       /* next socket ID for external malloc heap */
+       int next_socket_id;
 
        /* address of mem_config in primary process. used to map shared config into
         * exact same address the primary process maps it.
@@ -81,6 +86,9 @@ struct rte_mem_config {
        /* legacy mem and single file segments options are shared */
        uint32_t legacy_mem;
        uint32_t single_file_segments;
+
+       /* keeps the more restricted dma mask */
+       uint8_t dma_maskbits;
 } __attribute__((__packed__));
 
 
@@ -92,6 +100,54 @@ rte_eal_mcfg_wait_complete(struct rte_mem_config* mcfg)
                rte_pause();
 }
 
+/**
+ * Lock the internal EAL shared memory configuration for shared access.
+ */
+void
+rte_mcfg_mem_read_lock(void);
+
+/**
+ * Unlock the internal EAL shared memory configuration for shared access.
+ */
+void
+rte_mcfg_mem_read_unlock(void);
+
+/**
+ * Lock the internal EAL shared memory configuration for exclusive access.
+ */
+void
+rte_mcfg_mem_write_lock(void);
+
+/**
+ * Unlock the internal EAL shared memory configuration for exclusive access.
+ */
+void
+rte_mcfg_mem_write_unlock(void);
+
+/**
+ * Lock the internal EAL TAILQ list for shared access.
+ */
+void
+rte_mcfg_tailq_read_lock(void);
+
+/**
+ * Unlock the internal EAL TAILQ list for shared access.
+ */
+void
+rte_mcfg_tailq_read_unlock(void);
+
+/**
+ * Lock the internal EAL TAILQ list for exclusive access.
+ */
+void
+rte_mcfg_tailq_write_lock(void);
+
+/**
+ * Unlock the internal EAL TAILQ list for exclusive access.
+ */
+void
+rte_mcfg_tailq_write_unlock(void);
+
 #ifdef __cplusplus
 }
 #endif