Author: tuexen
Date: Wed Nov  7 22:11:38 2012
New Revision: 242714
URL: http://svnweb.freebsd.org/changeset/base/242714

Log:
  Add per outgoing stream accounting for chunks in the send
  and sent queue. This provides no functional change, but is
  a preparation for an upcoming stream reset improvement.
  Done with rrs@.
  
  MFC after: 1 week

Modified:
  head/sys/netinet/sctp_indata.c
  head/sys/netinet/sctp_input.c
  head/sys/netinet/sctp_pcb.c
  head/sys/netinet/sctp_structs.h
  head/sys/netinet/sctp_timer.c
  head/sys/netinet/sctputil.c

Modified: head/sys/netinet/sctp_indata.c
==============================================================================
--- head/sys/netinet/sctp_indata.c      Wed Nov  7 22:03:59 2012        
(r242713)
+++ head/sys/netinet/sctp_indata.c      Wed Nov  7 22:11:38 2012        
(r242714)
@@ -3963,7 +3963,15 @@ sctp_express_handle_sack(struct sctp_tcb
                                        tp1->whoTo->cwnd -= tp1->book_size;
                                        tp1->rec.data.chunk_was_revoked = 0;
                                }
-                               tp1->sent = SCTP_DATAGRAM_ACKED;
+                               if (tp1->sent != SCTP_DATAGRAM_NR_MARKED) {
+                                       if 
(asoc->strmout[tp1->rec.data.stream_number].chunks_on_queues > 0) {
+                                               
asoc->strmout[tp1->rec.data.stream_number].chunks_on_queues--;
+#ifdef INVARIANTS
+                                       } else {
+                                               panic("No chunks on the queues 
for sid %u.", tp1->rec.data.stream_number);
+#endif
+                                       }
+                               }
                                TAILQ_REMOVE(&asoc->sent_queue, tp1, sctp_next);
                                if (tp1->data) {
                                        /* sa_ignore NO_NULL_CHK */
@@ -4699,10 +4707,14 @@ sctp_handle_sack(struct mbuf *m, int off
                if (SCTP_TSN_GT(tp1->rec.data.TSN_seq, cum_ack)) {
                        break;
                }
-               if (tp1->sent == SCTP_DATAGRAM_UNSENT) {
-                       /* no more sent on list */
-                       SCTP_PRINTF("Warning, tp1->sent == %d and its now 
acked?\n",
-                           tp1->sent);
+               if (tp1->sent != SCTP_DATAGRAM_NR_MARKED) {
+                       if 
(asoc->strmout[tp1->rec.data.stream_number].chunks_on_queues > 0) {
+                               
asoc->strmout[tp1->rec.data.stream_number].chunks_on_queues--;
+#ifdef INVARIANTS
+                       } else {
+                               panic("No chunks on the queues for sid %u.", 
tp1->rec.data.stream_number);
+#endif
+                       }
                }
                TAILQ_REMOVE(&asoc->sent_queue, tp1, sctp_next);
                if (tp1->pr_sctp_on) {

Modified: head/sys/netinet/sctp_input.c
==============================================================================
--- head/sys/netinet/sctp_input.c       Wed Nov  7 22:03:59 2012        
(r242713)
+++ head/sys/netinet/sctp_input.c       Wed Nov  7 22:11:38 2012        
(r242714)
@@ -311,6 +311,13 @@ sctp_process_init(struct sctp_init_chunk
                        if (chk->rec.data.stream_number >= newcnt) {
                                TAILQ_REMOVE(&asoc->send_queue, chk, sctp_next);
                                asoc->send_queue_cnt--;
+                               if 
(asoc->strmout[chk->rec.data.stream_number].chunks_on_queues > 0) {
+                                       
asoc->strmout[chk->rec.data.stream_number].chunks_on_queues--;
+#ifdef INVARIANTS
+                               } else {
+                                       panic("No chunks on the queues for sid 
%u.", chk->rec.data.stream_number);
+#endif
+                               }
                                if (chk->data != NULL) {
                                        sctp_free_bufspace(stcb, asoc, chk, 1);
                                        
sctp_ulp_notify(SCTP_NOTIFY_UNSENT_DG_FAIL, stcb,

Modified: head/sys/netinet/sctp_pcb.c
==============================================================================
--- head/sys/netinet/sctp_pcb.c Wed Nov  7 22:03:59 2012        (r242713)
+++ head/sys/netinet/sctp_pcb.c Wed Nov  7 22:11:38 2012        (r242714)
@@ -4949,6 +4949,15 @@ sctp_free_assoc(struct sctp_inpcb *inp, 
        }
        /* sent queue SHOULD be empty */
        TAILQ_FOREACH_SAFE(chk, &asoc->sent_queue, sctp_next, nchk) {
+               if (chk->sent != SCTP_DATAGRAM_NR_MARKED) {
+                       if 
(asoc->strmout[chk->rec.data.stream_number].chunks_on_queues > 0) {
+                               
asoc->strmout[chk->rec.data.stream_number].chunks_on_queues--;
+#ifdef INVARIANTS
+                       } else {
+                               panic("No chunks on the queues for sid %u.", 
chk->rec.data.stream_number);
+#endif
+                       }
+               }
                TAILQ_REMOVE(&asoc->sent_queue, chk, sctp_next);
                if (chk->data) {
                        if (so) {

Modified: head/sys/netinet/sctp_structs.h
==============================================================================
--- head/sys/netinet/sctp_structs.h     Wed Nov  7 22:03:59 2012        
(r242713)
+++ head/sys/netinet/sctp_structs.h     Wed Nov  7 22:11:38 2012        
(r242714)
@@ -588,6 +588,7 @@ union scheduling_parameters {
 struct sctp_stream_out {
        struct sctp_streamhead outqueue;
        union scheduling_parameters ss_params;
+       uint32_t chunks_on_queues;
        uint16_t stream_no;
        uint16_t next_sequence_send;    /* next one I expect to send out */
        uint8_t last_msg_incomplete;

Modified: head/sys/netinet/sctp_timer.c
==============================================================================
--- head/sys/netinet/sctp_timer.c       Wed Nov  7 22:03:59 2012        
(r242713)
+++ head/sys/netinet/sctp_timer.c       Wed Nov  7 22:11:38 2012        
(r242714)
@@ -440,6 +440,11 @@ sctp_recover_sent_list(struct sctp_tcb *
                if (SCTP_TSN_GE(asoc->last_acked_seq, chk->rec.data.TSN_seq)) {
                        SCTP_PRINTF("Found chk:%p tsn:%x <= 
last_acked_seq:%x\n",
                            (void *)chk, chk->rec.data.TSN_seq, 
asoc->last_acked_seq);
+                       if (chk->sent != SCTP_DATAGRAM_NR_MARKED) {
+                               if 
(asoc->strmout[chk->rec.data.stream_number].chunks_on_queues > 0) {
+                                       
asoc->strmout[chk->rec.data.stream_number].chunks_on_queues--;
+                               }
+                       }
                        TAILQ_REMOVE(&asoc->sent_queue, chk, sctp_next);
                        if (chk->pr_sctp_on) {
                                if (asoc->pr_sctp_cnt != 0)

Modified: head/sys/netinet/sctputil.c
==============================================================================
--- head/sys/netinet/sctputil.c Wed Nov  7 22:03:59 2012        (r242713)
+++ head/sys/netinet/sctputil.c Wed Nov  7 22:11:38 2012        (r242714)
@@ -3727,6 +3727,15 @@ sctp_report_all_outbound(struct sctp_tcb
        TAILQ_FOREACH_SAFE(chk, &asoc->sent_queue, sctp_next, nchk) {
                TAILQ_REMOVE(&asoc->sent_queue, chk, sctp_next);
                asoc->sent_queue_cnt--;
+               if (chk->sent != SCTP_DATAGRAM_NR_MARKED) {
+                       if 
(asoc->strmout[chk->rec.data.stream_number].chunks_on_queues > 0) {
+                               
asoc->strmout[chk->rec.data.stream_number].chunks_on_queues--;
+#ifdef INVARIANTS
+                       } else {
+                               panic("No chunks on the queues for sid %u.", 
chk->rec.data.stream_number);
+#endif
+                       }
+               }
                if (chk->data != NULL) {
                        sctp_free_bufspace(stcb, asoc, chk, 1);
                        sctp_ulp_notify(SCTP_NOTIFY_SENT_DG_FAIL, stcb,
@@ -3743,6 +3752,13 @@ sctp_report_all_outbound(struct sctp_tcb
        TAILQ_FOREACH_SAFE(chk, &asoc->send_queue, sctp_next, nchk) {
                TAILQ_REMOVE(&asoc->send_queue, chk, sctp_next);
                asoc->send_queue_cnt--;
+               if (asoc->strmout[chk->rec.data.stream_number].chunks_on_queues 
> 0) {
+                       
asoc->strmout[chk->rec.data.stream_number].chunks_on_queues--;
+#ifdef INVARIANTS
+               } else {
+                       panic("No chunks on the queues for sid %u.", 
chk->rec.data.stream_number);
+#endif
+               }
                if (chk->data != NULL) {
                        sctp_free_bufspace(stcb, asoc, chk, 1);
                        sctp_ulp_notify(SCTP_NOTIFY_UNSENT_DG_FAIL, stcb,
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