X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=net%2Fsctp%2Foutqueue.c;h=e5faa351aaadeffd1f1b5a2bc1636c39384d0cae;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=1b2d4adc4ddbaf013e802d8e1da8df756d395e77;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index 1b2d4adc4..e5faa351a 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -75,7 +75,7 @@ static void sctp_generate_fwdtsn(struct sctp_outq *q, __u32 sack_ctsn);
 static inline void sctp_outq_head_data(struct sctp_outq *q,
 					struct sctp_chunk *ch)
 {
-	__skb_queue_head(&q->out, (struct sk_buff *)ch);
+	list_add(&ch->list, &q->out_chunk_list);
 	q->out_qlen += ch->skb->len;
 	return;
 }
@@ -83,17 +83,22 @@ static inline void sctp_outq_head_data(struct sctp_outq *q,
 /* Take data from the front of the queue. */
 static inline struct sctp_chunk *sctp_outq_dequeue_data(struct sctp_outq *q)
 {
-	struct sctp_chunk *ch;
-	ch = (struct sctp_chunk *)__skb_dequeue(&q->out);
-	if (ch)
+	struct sctp_chunk *ch = NULL;
+
+	if (!list_empty(&q->out_chunk_list)) {
+		struct list_head *entry = q->out_chunk_list.next;
+
+		ch = list_entry(entry, struct sctp_chunk, list);
+		list_del_init(entry);
 		q->out_qlen -= ch->skb->len;
+	}
 	return ch;
 }
 /* Add data chunk to the end of the queue. */
 static inline void sctp_outq_tail_data(struct sctp_outq *q,
 				       struct sctp_chunk *ch)
 {
-	__skb_queue_tail(&q->out, (struct sk_buff *)ch);
+	list_add_tail(&ch->list, &q->out_chunk_list);
 	q->out_qlen += ch->skb->len;
 	return;
 }
@@ -197,8 +202,8 @@ static inline int sctp_cacc_skip(struct sctp_transport *primary,
 void sctp_outq_init(struct sctp_association *asoc, struct sctp_outq *q)
 {
 	q->asoc = asoc;
-	skb_queue_head_init(&q->out);
-	skb_queue_head_init(&q->control);
+	INIT_LIST_HEAD(&q->out_chunk_list);
+	INIT_LIST_HEAD(&q->control_chunk_list);
 	INIT_LIST_HEAD(&q->retransmit);
 	INIT_LIST_HEAD(&q->sacked);
 	INIT_LIST_HEAD(&q->abandoned);
@@ -217,7 +222,7 @@ void sctp_outq_teardown(struct sctp_outq *q)
 {
 	struct sctp_transport *transport;
 	struct list_head *lchunk, *pos, *temp;
-	struct sctp_chunk *chunk;
+	struct sctp_chunk *chunk, *tmp;
 
 	/* Throw away unacknowledged chunks. */
 	list_for_each(pos, &q->asoc->peer.transport_addr_list) {
@@ -269,8 +274,10 @@ void sctp_outq_teardown(struct sctp_outq *q)
 	q->error = 0;
 
 	/* Throw away any leftover control chunks. */
-	while ((chunk = (struct sctp_chunk *) skb_dequeue(&q->control)) != NULL)
+	list_for_each_entry_safe(chunk, tmp, &q->control_chunk_list, list) {
+		list_del_init(&chunk->list);
 		sctp_chunk_free(chunk);
+	}
 }
 
 /* Free the outqueue structure and any related pending chunks.  */
@@ -333,7 +340,7 @@ int sctp_outq_tail(struct sctp_outq *q, struct sctp_chunk *chunk)
 			break;
 		};
 	} else {
-		__skb_queue_tail(&q->control, (struct sk_buff *) chunk);
+		list_add_tail(&chunk->list, &q->control_chunk_list);
 		SCTP_INC_STATS(SCTP_MIB_OUTCTRLCHUNKS);
 	}
 
@@ -399,7 +406,7 @@ void sctp_retransmit_mark(struct sctp_outq *q,
 		 * chunks that are not yet acked should be added to the
 		 * retransmit queue.
 		 */
-		if ((fast_retransmit && chunk->fast_retransmit) ||
+		if ((fast_retransmit && (chunk->fast_retransmit > 0)) ||
 		   (!fast_retransmit && !chunk->tsn_gap_acked)) {
 			/* RFC 2960 6.2.1 Processing a Received SACK
 			 *
@@ -596,7 +603,8 @@ static int sctp_outq_flush_rtx(struct sctp_outq *q, struct sctp_packet *pkt,
 			/* Mark the chunk as ineligible for fast retransmit 
 			 * after it is retransmitted.
 			 */
-			chunk->fast_retransmit = 0;
+			if (chunk->fast_retransmit > 0)
+				chunk->fast_retransmit = -1;
 
 			*start_timer = 1;
 			q->empty = 0;
@@ -614,7 +622,8 @@ static int sctp_outq_flush_rtx(struct sctp_outq *q, struct sctp_packet *pkt,
 			list_for_each(lchunk1, lqueue) {
 				chunk1 = list_entry(lchunk1, struct sctp_chunk,
 						    transmitted_list);
-				chunk1->fast_retransmit = 0;
+				if (chunk1->fast_retransmit > 0)
+					chunk1->fast_retransmit = -1;
 			}
 		}
 	}
@@ -650,10 +659,9 @@ int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
 	__u16 sport = asoc->base.bind_addr.port;
 	__u16 dport = asoc->peer.port;
 	__u32 vtag = asoc->peer.i.init_tag;
-	struct sk_buff_head *queue;
 	struct sctp_transport *transport = NULL;
 	struct sctp_transport *new_transport;
-	struct sctp_chunk *chunk;
+	struct sctp_chunk *chunk, *tmp;
 	sctp_xmit_t status;
 	int error = 0;
 	int start_timer = 0;
@@ -675,16 +683,17 @@ int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
 	 *   ...
 	 */
 
-	queue = &q->control;
-	while ((chunk = (struct sctp_chunk *)skb_dequeue(queue)) != NULL) {
+	list_for_each_entry_safe(chunk, tmp, &q->control_chunk_list, list) {
+		list_del_init(&chunk->list);
+
 		/* Pick the right transport to use. */
 		new_transport = chunk->transport;
 
 		if (!new_transport) {
 			new_transport = asoc->peer.active_path;
-		} else if (!new_transport->active) {
-			/* If the chunk is Heartbeat or Heartbeat Ack, 
-			 * send it to chunk->transport, even if it's 
+		} else if (new_transport->state == SCTP_INACTIVE) {
+			/* If the chunk is Heartbeat or Heartbeat Ack,
+			 * send it to chunk->transport, even if it's
 			 * inactive.
 			 *
 			 * 3.3.6 Heartbeat Acknowledgement:
@@ -814,8 +823,6 @@ int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
 
 		/* Finally, transmit new packets.  */
 		start_timer = 0;
-		queue = &q->out;
-
 		while ((chunk = sctp_outq_dequeue_data(q)) != NULL) {
 			/* RFC 2960 6.5 Every DATA chunk MUST carry a valid
 			 * stream identifier.
@@ -840,7 +847,8 @@ int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
 			 * Otherwise, we want to use the active path.
 			 */
 			new_transport = chunk->transport;
-			if (!new_transport || !new_transport->active)
+			if (!new_transport ||
+			    new_transport->state == SCTP_INACTIVE)
 				new_transport = asoc->peer.active_path;
 
 			/* Change packets if necessary.  */
@@ -1148,8 +1156,9 @@ int sctp_outq_sack(struct sctp_outq *q, struct sctp_sackhdr *sack)
 	/* See if all chunks are acked.
 	 * Make sure the empty queue handler will get run later.
 	 */
-	q->empty = skb_queue_empty(&q->out) && skb_queue_empty(&q->control) &&
-			list_empty(&q->retransmit);
+	q->empty = (list_empty(&q->out_chunk_list) &&
+		    list_empty(&q->control_chunk_list) &&
+		    list_empty(&q->retransmit));
 	if (!q->empty)
 		goto finish;
 
@@ -1253,6 +1262,7 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 			   	if (!tchunk->tsn_gap_acked &&
 				    !tchunk->resent &&
 				    tchunk->rtt_in_progress) {
+					tchunk->rtt_in_progress = 0;
 					rtt = jiffies - tchunk->sent_at;
 					sctp_transport_update_rto(transport,
 								  rtt);
@@ -1454,7 +1464,7 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 			/* Mark the destination transport address as
 			 * active if it is not so marked.
 			 */
-			if (!transport->active) {
+			if (transport->state == SCTP_INACTIVE) {
 				sctp_assoc_control_transport(
 					transport->asoc,
 					transport,
@@ -1555,11 +1565,11 @@ static void sctp_mark_missing(struct sctp_outq *q,
 		/*
 		 * M4) If any DATA chunk is found to have a
 		 * 'TSN.Missing.Report'
-		 * value larger than or equal to 4, mark that chunk for
+		 * value larger than or equal to 3, mark that chunk for
 		 * retransmission and start the fast retransmit procedure.
 		 */
 
-		if (chunk->tsn_missing_report >= 4) {
+		if (chunk->tsn_missing_report >= 3) {
 			chunk->fast_retransmit = 1;
 			do_fast_retransmit = 1;
 		}
@@ -1678,9 +1688,9 @@ static void sctp_generate_fwdtsn(struct sctp_outq *q, __u32 ctsn)
 		if (TSN_lte(tsn, ctsn)) {
 			list_del_init(lchunk);
 			if (!chunk->tsn_gap_acked) {
-			chunk->transport->flight_size -=
-						 sctp_data_size(chunk);
-			q->outstanding_bytes -= sctp_data_size(chunk);
+				chunk->transport->flight_size -=
+					sctp_data_size(chunk);
+				q->outstanding_bytes -= sctp_data_size(chunk);
 			}
 			sctp_chunk_free(chunk);
 		} else {
@@ -1728,7 +1738,7 @@ static void sctp_generate_fwdtsn(struct sctp_outq *q, __u32 ctsn)
 					      nskips, &ftsn_skip_arr[0]); 
 
 	if (ftsn_chunk) {
-		__skb_queue_tail(&q->control, (struct sk_buff *)ftsn_chunk);
+		list_add_tail(&ftsn_chunk->list, &q->control_chunk_list);
 		SCTP_INC_STATS(SCTP_MIB_OUTCTRLCHUNKS);
 	}
 }