X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_eal%2Fcommon%2Finclude%2Frte_memory.h;h=d16b284b50fde9b14acd4dc7d894f67decbcb048;hb=7ba49d39f14c;hp=8d3960d0094deeb1008bd5ce8fad8a600016eb1f;hpb=a7cb2e20d23c4b6b6e962f0a4d21da484fe090c2;p=dpdk.git

diff --git a/lib/librte_eal/common/include/rte_memory.h b/lib/librte_eal/common/include/rte_memory.h
index 8d3960d009..d16b284b50 100644
--- a/lib/librte_eal/common/include/rte_memory.h
+++ b/lib/librte_eal/common/include/rte_memory.h
@@ -44,12 +44,6 @@
 #include <stddef.h>
 #include <stdio.h>
 
-#include <rte_config.h>
-
-#ifdef RTE_EXEC_ENV_LINUXAPP
-#include <exec-env/rte_dom0_common.h>
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -98,14 +92,27 @@ enum rte_page_sizes {
  */
 #define __rte_cache_min_aligned __rte_aligned(RTE_CACHE_LINE_MIN_SIZE)
 
-typedef uint64_t phys_addr_t; /**< Physical address definition. */
+typedef uint64_t phys_addr_t; /**< Physical address. */
 #define RTE_BAD_PHYS_ADDR ((phys_addr_t)-1)
+/**
+ * IO virtual address type.
+ * When the physical addressing mode (IOVA as PA) is in use,
+ * the translation from an IO virtual address (IOVA) to a physical address
+ * is a direct mapping, i.e. the same value.
+ * Otherwise, in virtual mode (IOVA as VA), an IOMMU may do the translation.
+ */
+typedef uint64_t rte_iova_t;
+#define RTE_BAD_IOVA ((rte_iova_t)-1)
 
 /**
  * Physical memory segment descriptor.
  */
 struct rte_memseg {
-	phys_addr_t phys_addr;      /**< Start physical address. */
+	RTE_STD_C11
+	union {
+		phys_addr_t phys_addr;  /**< deprecated - Start physical address. */
+		rte_iova_t iova;        /**< Start IO address. */
+	};
 	RTE_STD_C11
 	union {
 		void *addr;         /**< Start virtual address. */
@@ -116,10 +123,6 @@ struct rte_memseg {
 	int32_t socket_id;          /**< NUMA socket ID. */
 	uint32_t nchannel;          /**< Number of channels. */
 	uint32_t nrank;             /**< Number of ranks. */
-#ifdef RTE_LIBRTE_XEN_DOM0
-	 /**< store segment MFNs */
-	uint64_t mfn[DOM0_NUM_MEMBLOCK];
-#endif
 } __rte_packed;
 
 /**
@@ -140,7 +143,7 @@ int rte_mem_lock_page(const void *virt);
  * @param virt
  *   The virtual address.
  * @return
- *   The physical address or RTE_BAD_PHYS_ADDR on error.
+ *   The physical address or RTE_BAD_IOVA on error.
  */
 phys_addr_t rte_mem_virt2phy(const void *virt);
 
@@ -195,38 +198,16 @@ 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);
-
 /**
- * Memory init for supporting application running on Xen domain0.
- *
- * @param void
- *
- * @return
- *       0: successfully
- *	 negative: error
- */
-int rte_xen_dom0_memory_init(void);
-
-/**
- * Attach to memory setments of primary process on Xen domain0.
- *
- * @param void
+ * Drivers based on uio will not load unless physical
+ * addresses are obtainable. It is only possible to get
+ * physical addresses when running as a privileged user.
  *
  * @return
- *       0: successfully
- *       negative: error
+ *   1 if the system is able to obtain physical addresses.
+ *   0 if using DMA addresses through an IOMMU.
  */
-int rte_xen_dom0_memory_attach(void);
-#else
-static inline int rte_xen_dom0_supported(void)
-{
-	return 0;
-}
-#endif
+int rte_eal_using_phys_addrs(void);
 
 #ifdef __cplusplus
 }