[PACKET_HISTORY]: Add dccphtx_rtt and rename the win_count fields

As requested by Ian.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: Ian McDonald <iam4@cs.waikato.ac.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 18 insertions, 17 deletions

diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c
index 80f12c990c00..edf9740d8d82 100644
--- a/net/dccp/ccids/ccid3.c
+++ b/net/dccp/ccids/ccid3.c
@@ -1004,7 +1004,7 @@ static int ccid3_hc_tx_send_packet(struct sock *sk,
 
         /* Can we send? if so add options and add to packet history */
         if (rc == 0)
-                new_packet->dccphtx_win_count =
+                new_packet->dccphtx_ccval =
                         DCCP_SKB_CB(skb)->dccpd_ccval =
                                 hctx->ccid3hctx_last_win_count;
 out:
@@ -1060,7 +1060,7 @@ static void ccid3_hc_tx_packet_sent(struct sock *sk, int more, int len)
                                                             min_t(unsigned long, quarter_rtt, 5)) % 16;
                         ccid3_pr_debug("%s, sk=%p, window changed from %u to %u!\n",
                                        dccp_role(sk), sk,
-                                       packet->dccphtx_win_count,
+                                       packet->dccphtx_ccval,
                                        hctx->ccid3hctx_last_win_count);
                 }
                 /* COMPLIANCE_END */
@@ -1068,9 +1068,10 @@ static void ccid3_hc_tx_packet_sent(struct sock *sk, int more, int len)
                 ccid3_pr_debug("%s, sk=%p, packet sent (%llu,%u)\n",
                                dccp_role(sk), sk,
                                packet->dccphtx_seqno,
-                               packet->dccphtx_win_count);
+                               packet->dccphtx_ccval);
 #endif
                 hctx->ccid3hctx_idle = 0;
+                packet->dccphtx_rtt  = hctx->ccid3hctx_rtt;
                 packet->dccphtx_sent = 1;
         } else
                 ccid3_pr_debug("%s, sk=%p, seqno=%llu NOT inserted!\n",
@@ -1489,11 +1490,10 @@ trim_history:
                                         step = 2;
                                         /* OK, find next data packet */
                                         num_later = 1;
-                                        win_count = entry->dccphrx_win_count;
+                                        win_count = entry->dccphrx_ccval;
                                         break;
                                 case 2:
-                                        tmp = (win_count -
-                                               entry->dccphrx_win_count);
+                                        tmp = win_count - entry->dccphrx_ccval;
                                         if (tmp < 0)
                                                 tmp += TFRC_WIN_COUNT_LIMIT;
                                         if (tmp > TFRC_WIN_COUNT_PER_RTT + 1) {
@@ -1553,7 +1553,7 @@ static void ccid3_hc_rx_send_feedback(struct sock *sk)
         }
 
         do_gettimeofday(&(hcrx->ccid3hcrx_tstamp_last_feedback));
-        hcrx->ccid3hcrx_last_counter         = packet->dccphrx_win_count;
+        hcrx->ccid3hcrx_last_counter         = packet->dccphrx_ccval;
         hcrx->ccid3hcrx_seqno_last_counter   = packet->dccphrx_seqno;
         hcrx->ccid3hcrx_bytes_recv           = 0;
 
@@ -1645,11 +1645,11 @@ static u32 ccid3_hc_rx_calc_first_li(struct sock *sk)
                         switch (step) {
                         case 0:
                                 tstamp    = entry->dccphrx_tstamp;
-                                win_count = entry->dccphrx_win_count;
+                                win_count = entry->dccphrx_ccval;
                                 step = 1;
                                 break;
                         case 1:
-                                interval = win_count - entry->dccphrx_win_count;
+                                interval = win_count - entry->dccphrx_ccval;
                                 if (interval < 0)
                                         interval += TFRC_WIN_COUNT_LIMIT;
                                 if (interval > 4)
@@ -1816,7 +1816,7 @@ static void ccid3_hc_rx_detect_loss(struct sock *sk)
         }
 
         if (seq_loss != DCCP_MAX_SEQNO + 1)
-                win_loss = a_loss->dccphrx_win_count;
+                win_loss = a_loss->dccphrx_ccval;
 
 out_update_li:
         ccid3_hc_rx_update_li(sk, seq_loss, win_loss);
@@ -1918,7 +1918,7 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb)
                 return;
         }
 
-        win_count = packet->dccphrx_win_count;
+        win_count = packet->dccphrx_ccval;
 
         ins = ccid3_hc_rx_add_hist(sk, packet);
 
diff --git a/net/dccp/packet_history.h b/net/dccp/packet_history.h
index 565dc96506e9..0056525a656c 100644
--- a/net/dccp/packet_history.h
+++ b/net/dccp/packet_history.h
@@ -47,15 +47,16 @@
 struct dccp_tx_hist_entry {
         struct list_head dccphtx_node;
         u64              dccphtx_seqno:48,
-                         dccphtx_win_count:8,
+                         dccphtx_ccval:4,
                          dccphtx_sent:1;
+        u32              dccphtx_rtt;
         struct timeval   dccphtx_tstamp;
 };
 
 struct dccp_rx_hist_entry {
         struct list_head dccphrx_node;
         u64              dccphrx_seqno:48,
-                         dccphrx_win_count:4,
+                         dccphrx_ccval:4,
                          dccphrx_type:4;
         u32              dccphrx_ndp; /* In fact it is from 8 to 24 bits */
         struct timeval   dccphrx_tstamp;
@@ -136,10 +137,10 @@ static inline struct dccp_rx_hist_entry *
         if (entry != NULL) {
                 const struct dccp_hdr *dh = dccp_hdr(skb);
 
-                entry->dccphrx_seqno     = DCCP_SKB_CB(skb)->dccpd_seq;
-                entry->dccphrx_win_count = dh->dccph_ccval;
-                entry->dccphrx_type      = dh->dccph_type;
-                entry->dccphrx_ndp       = ndp;
+                entry->dccphrx_seqno = DCCP_SKB_CB(skb)->dccpd_seq;
+                entry->dccphrx_ccval = dh->dccph_ccval;
+                entry->dccphrx_type  = dh->dccph_type;
+                entry->dccphrx_ndp   = ndp;
                 do_gettimeofday(&(entry->dccphrx_tstamp));
         }