X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_eal%2Fcommon%2Finclude%2Frte_eal_memconfig.h;h=84aabe36c29fdae3b4bb33b3f8fab5fce0f8fbcb;hb=721ac9f9e063f55570c1c3a2f07cf5a7b5e15aab;hp=6b268157048ccee7a300077bd12f8948a66d00f7;hpb=30a37273c1924a25df41f94e4b1f5f84cc2344a5;p=dpdk.git

diff --git a/lib/librte_eal/common/include/rte_eal_memconfig.h b/lib/librte_eal/common/include/rte_eal_memconfig.h
index 6b26815704..84aabe36c2 100644
--- a/lib/librte_eal/common/include/rte_eal_memconfig.h
+++ b/lib/librte_eal/common/include/rte_eal_memconfig.h
@@ -1,55 +1,41 @@
-/*-
- *   BSD LICENSE
- * 
- *   Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
- *   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) 2010-2014 Intel Corporation
  */
 
 #ifndef _RTE_EAL_MEMCONFIG_H_
 #define _RTE_EAL_MEMCONFIG_H_
 
+#include <rte_config.h>
 #include <rte_tailq.h>
 #include <rte_memory.h>
 #include <rte_memzone.h>
+#include <rte_malloc_heap.h>
+#include <rte_rwlock.h>
+#include <rte_pause.h>
+#include <rte_fbarray.h>
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 /**
- * Index type of tailq_head
- */ 
-enum rte_tailq_t {
-#define rte_tailq_elem(idx, name)     idx,
-#define rte_tailq_end(idx)            idx
-#include <rte_tailq_elem.h>
+ * memseg list is a special case as we need to store a bunch of other data
+ * together with the array itself.
+ */
+struct rte_memseg_list {
+	RTE_STD_C11
+	union {
+		void *base_va;
+		/**< Base virtual address for this memseg list. */
+		uint64_t addr_64;
+		/**< Makes sure addr is always 64-bits */
+	};
+	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;
 };
 
 /**
@@ -58,18 +44,62 @@ enum rte_tailq_t {
  * support, the memory details should be shared across instances
  */
 struct rte_mem_config {
+	volatile uint32_t magic;   /**< Magic number - Sanity check. */
+
 	/* memory topology */
 	uint32_t nchannel;    /**< Number of channels (0 if unknown). */
 	uint32_t nrank;       /**< Number of ranks (0 if unknown). */
 
+	/**
+	 * current lock nest order
+	 *  - qlock->mlock (ring/hash/lpm)
+	 *  - mplock->qlock->mlock (mempool)
+	 * Notice:
+	 *  *ALWAYS* obtain qlock first if having to obtain both qlock and mlock
+	 */
+	rte_rwlock_t mlock;   /**< only used by memzone LIB for thread-safe. */
+	rte_rwlock_t qlock;   /**< used for tailq operation for thread safe. */
+	rte_rwlock_t mplock;  /**< only used by mempool LIB for thread-safe. */
+
+	rte_rwlock_t memory_hotplug_lock;
+	/**< indicates whether memory hotplug request is in progress. */
+
 	/* memory segments and zones */
-	struct rte_memseg memseg[RTE_MAX_MEMSEG];    /**< Physmem descriptors. */
-	struct rte_memzone memzone[RTE_MAX_MEMZONE]; /**< Memzone descriptors. */
+	struct rte_fbarray memzones; /**< Memzone descriptors. */
+
+	struct rte_memseg_list memsegs[RTE_MAX_MEMSEG_LISTS];
+	/**< list of dynamic arrays holding memsegs */
 
 	struct rte_tailq_head tailq_head[RTE_MAX_TAILQ]; /**< Tailqs for objects */
+
+	/* 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.
+	 */
+	uint64_t mem_cfg_addr;
+
+	/* 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__));
 
 
+inline static void
+rte_eal_mcfg_wait_complete(struct rte_mem_config* mcfg)
+{
+	/* wait until shared mem_config finish initialising */
+	while(mcfg->magic != RTE_MAGIC)
+		rte_pause();
+}
+
 #ifdef __cplusplus
 }
 #endif