X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_ip_frag%2Frte_ipv4_fragmentation.c;h=a4ed9238abe3f151fc7e78b376a5b4735c24062d;hb=5915699153d788c5cb3c449635eca46f1da6f2fe;hp=5f67417e148ecc23de4640ac5095b7c5412f36b9;hpb=83e25bb4d73ea9ada4dcd09054763fa631bde11e;p=dpdk.git

diff --git a/lib/librte_ip_frag/rte_ipv4_fragmentation.c b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
index 5f67417e14..a4ed9238ab 100644
--- a/lib/librte_ip_frag/rte_ipv4_fragmentation.c
+++ b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
@@ -32,37 +32,13 @@
  */
 
 #include <stddef.h>
-#include <stdint.h>
 #include <errno.h>
 
-#include <rte_byteorder.h>
 #include <rte_memcpy.h>
 #include <rte_mempool.h>
 #include <rte_debug.h>
-#include <rte_mbuf.h>
-#include <rte_ip.h>
 
-#include "rte_ip_frag.h"
-
-/*
- * MAX number of fragments per packet allowed.
- */
-#define	IPV4_MAX_FRAGS_PER_PACKET	0x80
-
-/* Debug on/off */
-#ifdef RTE_IPV4_FRAG_DEBUG
-
-#define	RTE_IPV4_FRAG_ASSERT(exp)					\
-if (!(exp))	{							\
-	rte_panic("function %s, line%d\tassert \"" #exp "\" failed\n",	\
-		__func__, __LINE__);					\
-}
-
-#else /*RTE_IPV4_FRAG_DEBUG*/
-
-#define RTE_IPV4_FRAG_ASSERT(exp)	do { } while (0)
-
-#endif /*RTE_IPV4_FRAG_DEBUG*/
+#include "ip_frag_common.h"
 
 /* Fragment Offset */
 #define	IPV4_HDR_DF_SHIFT			14
@@ -115,7 +91,7 @@ static inline void __free_fragments(struct rte_mbuf *mb[], uint32_t num)
  *   Otherwise - (-1) * <errno>.
  */
 int32_t
-rte_ipv4_fragmentation(struct rte_mbuf *pkt_in,
+rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
 	struct rte_mbuf **pkts_out,
 	uint16_t nb_pkts_out,
 	uint16_t mtu_size,
@@ -131,13 +107,9 @@ rte_ipv4_fragmentation(struct rte_mbuf *pkt_in,
 	frag_size = (uint16_t)(mtu_size - sizeof(struct ipv4_hdr));
 
 	/* Fragment size should be a multiply of 8. */
-	RTE_IPV4_FRAG_ASSERT((frag_size & IPV4_HDR_FO_MASK) == 0);
-
-	/* Fragment size should be a multiply of 8. */
-	RTE_IPV4_FRAG_ASSERT(IPV4_MAX_FRAGS_PER_PACKET * frag_size >=
-	    (uint16_t)(pkt_in->pkt.pkt_len - sizeof(struct ipv4_hdr)));
+	IP_FRAG_ASSERT((frag_size & IPV4_HDR_FO_MASK) == 0);
 
-	in_hdr = (struct ipv4_hdr *) pkt_in->pkt.data;
+	in_hdr = rte_pktmbuf_mtod(pkt_in, struct ipv4_hdr *);
 	flag_offset = rte_cpu_to_be_16(in_hdr->fragment_offset);
 
 	/* If Don't Fragment flag is set */
@@ -146,7 +118,7 @@ rte_ipv4_fragmentation(struct rte_mbuf *pkt_in,
 
 	/* Check that pkts_out is big enough to hold all fragments */
 	if (unlikely(frag_size * nb_pkts_out <
-	    (uint16_t)(pkt_in->pkt.pkt_len - sizeof (struct ipv4_hdr))))
+	    (uint16_t)(pkt_in->pkt_len - sizeof (struct ipv4_hdr))))
 		return -EINVAL;
 
 	in_seg = pkt_in;
@@ -168,8 +140,8 @@ rte_ipv4_fragmentation(struct rte_mbuf *pkt_in,
 		}
 
 		/* Reserve space for the IP header that will be built later */
-		out_pkt->pkt.data_len = sizeof(struct ipv4_hdr);
-		out_pkt->pkt.pkt_len = sizeof(struct ipv4_hdr);
+		out_pkt->data_len = sizeof(struct ipv4_hdr);
+		out_pkt->pkt_len = sizeof(struct ipv4_hdr);
 
 		out_seg_prev = out_pkt;
 		more_out_segs = 1;
@@ -184,29 +156,29 @@ rte_ipv4_fragmentation(struct rte_mbuf *pkt_in,
 				__free_fragments(pkts_out, out_pkt_pos);
 				return -ENOMEM;
 			}
-			out_seg_prev->pkt.next = out_seg;
+			out_seg_prev->next = out_seg;
 			out_seg_prev = out_seg;
 
 			/* Prepare indirect buffer */
 			rte_pktmbuf_attach(out_seg, in_seg);
-			len = mtu_size - out_pkt->pkt.pkt_len;
-			if (len > (in_seg->pkt.data_len - in_seg_data_pos)) {
-				len = in_seg->pkt.data_len - in_seg_data_pos;
+			len = mtu_size - out_pkt->pkt_len;
+			if (len > (in_seg->data_len - in_seg_data_pos)) {
+				len = in_seg->data_len - in_seg_data_pos;
 			}
-			out_seg->pkt.data = (char*) in_seg->pkt.data + (uint16_t)in_seg_data_pos;
-			out_seg->pkt.data_len = (uint16_t)len;
-			out_pkt->pkt.pkt_len = (uint16_t)(len +
-			    out_pkt->pkt.pkt_len);
-			out_pkt->pkt.nb_segs += 1;
+			out_seg->data_off = in_seg->data_off + in_seg_data_pos;
+			out_seg->data_len = (uint16_t)len;
+			out_pkt->pkt_len = (uint16_t)(len +
+			    out_pkt->pkt_len);
+			out_pkt->nb_segs += 1;
 			in_seg_data_pos += len;
 
 			/* Current output packet (i.e. fragment) done ? */
-			if (unlikely(out_pkt->pkt.pkt_len >= mtu_size))
+			if (unlikely(out_pkt->pkt_len >= mtu_size))
 				more_out_segs = 0;
 
 			/* Current input segment done ? */
-			if (unlikely(in_seg_data_pos == in_seg->pkt.data_len)) {
-				in_seg = in_seg->pkt.next;
+			if (unlikely(in_seg_data_pos == in_seg->data_len)) {
+				in_seg = in_seg->next;
 				in_seg_data_pos = 0;
 
 				if (unlikely(in_seg == NULL))
@@ -216,17 +188,17 @@ rte_ipv4_fragmentation(struct rte_mbuf *pkt_in,
 
 		/* Build the IP header */
 
-		out_hdr = (struct ipv4_hdr*) out_pkt->pkt.data;
+		out_hdr = rte_pktmbuf_mtod(out_pkt, struct ipv4_hdr *);
 
 		__fill_ipv4hdr_frag(out_hdr, in_hdr,
-		    (uint16_t)out_pkt->pkt.pkt_len,
+		    (uint16_t)out_pkt->pkt_len,
 		    flag_offset, fragment_offset, more_in_segs);
 
 		fragment_offset = (uint16_t)(fragment_offset +
-		    out_pkt->pkt.pkt_len - sizeof(struct ipv4_hdr));
+		    out_pkt->pkt_len - sizeof(struct ipv4_hdr));
 
 		out_pkt->ol_flags |= PKT_TX_IP_CKSUM;
-		out_pkt->pkt.vlan_macip.f.l3_len = sizeof(struct ipv4_hdr);
+		out_pkt->l3_len = sizeof(struct ipv4_hdr);
 
 		/* Write the fragment to the output list */
 		pkts_out[out_pkt_pos] = out_pkt;