X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_ip_frag%2Frte_ip_frag.h;h=92cedf2fe6a272bc72234209b2ae0685cc29f74a;hb=b7743213447f8c9aa4afa0f2ea9fac56628c57e3;hp=f1e7036f2f5927be08cfbaefe65803feac2c76f2;hpb=ad942d78c1b5c0fd558ac7c069278c7c37ddaa68;p=dpdk.git

diff --git a/lib/librte_ip_frag/rte_ip_frag.h b/lib/librte_ip_frag/rte_ip_frag.h
index f1e7036f2f..92cedf2fe6 100644
--- a/lib/librte_ip_frag/rte_ip_frag.h
+++ b/lib/librte_ip_frag/rte_ip_frag.h
@@ -36,19 +36,25 @@
 
 /**
  * @file
- * RTE IPv4 Fragmentation and Reassembly
+ * RTE IP Fragmentation and Reassembly
  *
- * Implementation of IPv4 packet fragmentation and reassembly.
+ * Implementation of IP packet fragmentation and reassembly.
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdint.h>
 #include <stdio.h>
 
 #include <rte_malloc.h>
-#include <rte_mbuf.h>
+#include <rte_memory.h>
 #include <rte_ip.h>
 #include <rte_byteorder.h>
 
+struct rte_mbuf;
+
 enum {
 	IP_LAST_FRAG_IDX,    /**< index of last fragment */
 	IP_FIRST_FRAG_IDX,   /**< index of first fragment */
@@ -75,8 +81,8 @@ struct ip_frag_key {
  * @internal Fragmented packet to reassemble.
  * First two entries in the frags[] array are for the last and first fragments.
  */
-struct rte_ip_frag_pkt {
-	TAILQ_ENTRY(rte_ip_frag_pkt) lru;   /**< LRU list */
+struct ip_frag_pkt {
+	TAILQ_ENTRY(ip_frag_pkt) lru;   /**< LRU list */
 	struct ip_frag_key key;           /**< fragmentation key */
 	uint64_t             start;       /**< creation timestamp */
 	uint32_t             total_size;  /**< expected reassembled size */
@@ -94,10 +100,10 @@ struct rte_ip_frag_death_row {
 	/**< mbufs to be freed */
 };
 
-TAILQ_HEAD(rte_ip_pkt_list, rte_ip_frag_pkt); /**< @internal fragments tailq */
+TAILQ_HEAD(ip_pkt_list, ip_frag_pkt); /**< @internal fragments tailq */
 
 /** fragmentation table statistics */
-struct rte_ip_frag_tbl_stat {
+struct ip_frag_tbl_stat {
 	uint64_t find_num;      /**< total # of find/insert attempts. */
 	uint64_t add_num;       /**< # of add ops. */
 	uint64_t del_num;       /**< # of del ops. */
@@ -115,26 +121,31 @@ struct rte_ip_frag_tbl {
 	uint32_t             bucket_entries;  /**< hash assocaitivity. */
 	uint32_t             nb_entries;      /**< total size of the table. */
 	uint32_t             nb_buckets;      /**< num of associativity lines. */
-	struct rte_ip_frag_pkt *last;         /**< last used entry. */
-	struct rte_ip_pkt_list lru;           /**< LRU list for table entries. */
-	struct rte_ip_frag_tbl_stat stat;     /**< statistics counters. */
-	struct rte_ip_frag_pkt pkt[0];        /**< hash table. */
+	struct ip_frag_pkt *last;         /**< last used entry. */
+	struct ip_pkt_list lru;           /**< LRU list for table entries. */
+	struct ip_frag_tbl_stat stat;     /**< statistics counters. */
+	struct ip_frag_pkt pkt[0];        /**< hash table. */
 };
 
 /** IPv6 fragment extension header */
+#define	RTE_IPV6_EHDR_MF_SHIFT			0
+#define	RTE_IPV6_EHDR_MF_MASK			1
+#define	RTE_IPV6_EHDR_FO_SHIFT			3
+#define	RTE_IPV6_EHDR_FO_MASK			(~((1 << RTE_IPV6_EHDR_FO_SHIFT) - 1))
+
+#define RTE_IPV6_FRAG_USED_MASK			\
+	(RTE_IPV6_EHDR_MF_MASK | RTE_IPV6_EHDR_FO_MASK)
+
+#define RTE_IPV6_GET_MF(x)				((x) & RTE_IPV6_EHDR_MF_MASK)
+#define RTE_IPV6_GET_FO(x)				((x) >> RTE_IPV6_EHDR_FO_SHIFT)
+
+#define RTE_IPV6_SET_FRAG_DATA(fo, mf)	\
+	(((fo) & RTE_IPV6_EHDR_FO_MASK) | ((mf) & RTE_IPV6_EHDR_MF_MASK))
+
 struct ipv6_extension_fragment {
 	uint8_t next_header;            /**< Next header type */
-	uint8_t reserved1;              /**< Reserved */
-	union {
-		struct {
-			uint16_t frag_offset:13; /**< Offset from the start of the packet */
-			uint16_t reserved2:2; /**< Reserved */
-			uint16_t more_frags:1;
-			/**< 1 if more fragments left, 0 if last fragment */
-		};
-		uint16_t frag_data;
-		/**< union of all fragmentation data */
-	};
+	uint8_t reserved;               /**< Reserved */
+	uint16_t frag_data;             /**< All fragmentation data */
 	uint32_t id;                    /**< Packet ID */
 } __attribute__((__packed__));
 
@@ -204,7 +215,6 @@ rte_ipv6_fragment_packet(struct rte_mbuf *pkt_in,
 		struct rte_mempool *pool_direct,
 		struct rte_mempool *pool_indirect);
 
-
 /*
  * This function implements reassembly of fragmented IPv6 packets.
  * Incoming mbuf should have its l2_len/l3_len fields setup correctly.
@@ -346,4 +356,8 @@ void rte_ip_frag_free_death_row(struct rte_ip_frag_death_row *dr,
 void
 rte_ip_frag_table_statistics_dump(FILE * f, const struct rte_ip_frag_tbl *tbl);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _RTE_IP_FRAG_H_ */