X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_eal%2Fcommon%2Finclude%2Frte_memory.h;h=4aa5d1f77566cdcb1c3d3d6d619b88e6b5e1c0c6;hb=21f6411c893111507b0b8a1cc86aa15f9fb3da3d;hp=1bed4153d31ccbb363c4916507c38b7d90c6f950;hpb=ea7196decfa8bd17f93467718b19eccd77e43587;p=dpdk.git

diff --git a/lib/librte_eal/common/include/rte_memory.h b/lib/librte_eal/common/include/rte_memory.h
index 1bed4153d3..4aa5d1f775 100644
--- a/lib/librte_eal/common/include/rte_memory.h
+++ b/lib/librte_eal/common/include/rte_memory.h
@@ -44,6 +44,8 @@
 #include <stddef.h>
 #include <stdio.h>
 
+#include <rte_config.h>
+
 #ifdef RTE_EXEC_ENV_LINUXAPP
 #include <exec-env/rte_dom0_common.h>
 #endif
@@ -52,6 +54,9 @@
 extern "C" {
 #endif
 
+#include <rte_common.h>
+
+__extension__
 enum rte_page_sizes {
 	RTE_PGSIZE_4K    = 1ULL << 12,
 	RTE_PGSIZE_64K   = 1ULL << 16,
@@ -66,19 +71,32 @@ enum rte_page_sizes {
 };
 
 #define SOCKET_ID_ANY -1                    /**< Any NUMA socket. */
-#ifndef RTE_CACHE_LINE_SIZE
-#define RTE_CACHE_LINE_SIZE 64                  /**< Cache line size. */
-#endif
 #define RTE_CACHE_LINE_MASK (RTE_CACHE_LINE_SIZE-1) /**< Cache line mask. */
 
 #define RTE_CACHE_LINE_ROUNDUP(size) \
 	(RTE_CACHE_LINE_SIZE * ((size + RTE_CACHE_LINE_SIZE - 1) / RTE_CACHE_LINE_SIZE))
 /**< Return the first cache-aligned value greater or equal to size. */
 
+/**< Cache line size in terms of log2 */
+#if RTE_CACHE_LINE_SIZE == 64
+#define RTE_CACHE_LINE_SIZE_LOG2 6
+#elif RTE_CACHE_LINE_SIZE == 128
+#define RTE_CACHE_LINE_SIZE_LOG2 7
+#else
+#error "Unsupported cache line size"
+#endif
+
+#define RTE_CACHE_LINE_MIN_SIZE 64	/**< Minimum Cache line size. */
+
 /**
  * Force alignment to cache line.
  */
-#define __rte_cache_aligned __attribute__((__aligned__(RTE_CACHE_LINE_SIZE)))
+#define __rte_cache_aligned __rte_aligned(RTE_CACHE_LINE_SIZE)
+
+/**
+ * Force minimum cache line alignment.
+ */
+#define __rte_cache_min_aligned __rte_aligned(RTE_CACHE_LINE_MIN_SIZE)
 
 typedef uint64_t phys_addr_t; /**< Physical address definition. */
 #define RTE_BAD_PHYS_ADDR ((phys_addr_t)-1)
@@ -88,13 +106,11 @@ typedef uint64_t phys_addr_t; /**< Physical address definition. */
  */
 struct rte_memseg {
 	phys_addr_t phys_addr;      /**< Start physical address. */
+	RTE_STD_C11
 	union {
 		void *addr;         /**< Start virtual address. */
 		uint64_t addr_64;   /**< Makes sure addr is always 64 bits */
 	};
-#ifdef RTE_LIBRTE_IVSHMEM
-	phys_addr_t ioremap_addr; /**< Real physical address inside the VM */
-#endif
 	size_t len;               /**< Length of the segment. */
 	uint64_t hugepage_sz;       /**< The pagesize of underlying memory */
 	int32_t socket_id;          /**< NUMA socket ID. */
@@ -104,7 +120,7 @@ struct rte_memseg {
 	 /**< store segment MFNs */
 	uint64_t mfn[DOM0_NUM_MEMBLOCK];
 #endif
-} __attribute__((__packed__));
+} __rte_packed;
 
 /**
  * Lock page in physical memory and prevent from swapping.
@@ -146,7 +162,7 @@ phys_addr_t rte_mem_virt2phy(const void *virt);
 const struct rte_memseg *rte_eal_get_physmem_layout(void);
 
 /**
- * Dump the physical memory layout to the console.
+ * Dump the physical memory layout to a file.
  *
  * @param f
  *   A pointer to a file for output
@@ -180,18 +196,33 @@ unsigned rte_memory_get_nchannel(void);
 unsigned rte_memory_get_nrank(void);
 
 #ifdef RTE_LIBRTE_XEN_DOM0
+
+/**< Internal use only - should DOM0 memory mapping be used */
+int rte_xen_dom0_supported(void);
+
+/**< Internal use only - phys to virt mapping for xen */
+phys_addr_t rte_xen_mem_phy2mch(int32_t, const phys_addr_t);
+
 /**
  * Return the physical address of elt, which is an element of the pool mp.
  *
  * @param memseg_id
- *   The mempool is from which memory segment.
+ *   Identifier of the memory segment owning the physical address. If
+ *   set to -1, find it automatically.
  * @param phy_addr
  *   physical address of elt.
  *
  * @return
- *   The physical address or error.
+ *   The physical address or RTE_BAD_PHYS_ADDR on error.
  */
-phys_addr_t rte_mem_phy2mch(uint32_t memseg_id, const phys_addr_t phy_addr);
+static inline phys_addr_t
+rte_mem_phy2mch(int32_t memseg_id, const phys_addr_t phy_addr)
+{
+	if (rte_xen_dom0_supported())
+		return rte_xen_mem_phy2mch(memseg_id, phy_addr);
+	else
+		return phy_addr;
+}
 
 /**
  * Memory init for supporting application running on Xen domain0.
@@ -214,7 +245,19 @@ int rte_xen_dom0_memory_init(void);
  *       negative: error
  */
 int rte_xen_dom0_memory_attach(void);
+#else
+static inline int rte_xen_dom0_supported(void)
+{
+	return 0;
+}
+
+static inline phys_addr_t
+rte_mem_phy2mch(int32_t memseg_id __rte_unused, const phys_addr_t phy_addr)
+{
+	return phy_addr;
+}
 #endif
+
 #ifdef __cplusplus
 }
 #endif