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Diffstat (limited to 'lib/librte_eal/common/eal_common_memory.c')
-rw-r--r--lib/librte_eal/common/eal_common_memory.c116
1 files changed, 116 insertions, 0 deletions
diff --git a/lib/librte_eal/common/eal_common_memory.c b/lib/librte_eal/common/eal_common_memory.c
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+++ b/lib/librte_eal/common/eal_common_memory.c
@@ -0,0 +1,116 @@
+/*-
+ * 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.
+ *
+ * version: DPDK.L.1.2.3-3
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <inttypes.h>
+#include <sys/queue.h>
+
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_tailq.h>
+#include <rte_eal.h>
+#include <rte_log.h>
+
+#include "eal_private.h"
+
+/*
+ * Return a pointer to a read-only table of struct rte_physmem_desc
+ * elements, containing the layout of all addressable physical
+ * memory. The last element of the table contains a NULL address.
+ */
+const struct rte_memseg *
+rte_eal_get_physmem_layout(void)
+{
+ return rte_eal_get_configuration()->mem_config->memseg;
+}
+
+
+/* get the total size of memory */
+uint64_t
+rte_eal_get_physmem_size(void)
+{
+ const struct rte_mem_config *mcfg;
+ unsigned i = 0;
+ uint64_t total_len = 0;
+
+ /* get pointer to global configuration */
+ mcfg = rte_eal_get_configuration()->mem_config;
+
+ for (i=0; i<RTE_MAX_MEMSEG; i++) {
+ if (mcfg->memseg[i].addr == NULL)
+ break;
+
+ total_len += mcfg->memseg[i].len;
+ }
+
+ return total_len;
+}
+
+/* Dump the physical memory layout on console */
+void
+rte_dump_physmem_layout(void)
+{
+ const struct rte_mem_config *mcfg;
+ unsigned i = 0;
+
+ /* get pointer to global configuration */
+ mcfg = rte_eal_get_configuration()->mem_config;
+
+ for (i=0; i<RTE_MAX_MEMSEG; i++) {
+ if (mcfg->memseg[i].addr == NULL)
+ break;
+ printf("phys:0x%"PRIx64", len:0x%"PRIx64", virt:%p, "
+ "socket_id:%"PRId32"\n",
+ mcfg->memseg[i].phys_addr,
+ mcfg->memseg[i].len,
+ mcfg->memseg[i].addr,
+ mcfg->memseg[i].socket_id);
+ }
+}
+
+/* return the number of memory channels */
+unsigned rte_memory_get_nchannel(void)
+{
+ return rte_eal_get_configuration()->mem_config->nchannel;
+}
+
+/* return the number of memory rank */
+unsigned rte_memory_get_nrank(void)
+{
+ return rte_eal_get_configuration()->mem_config->nrank;
+}