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Commit c1734376 authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo Committed by David S. Miller
Browse files

[PACKET_HISTORY]: Add dccphtx_rtt and rename the win_count fields 



As requested by Ian.

Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: default avatarIan McDonald <iam4@cs.waikato.ac.nz>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 34b4a4a6

net/dccp/ccids/ccid3.c

+11 −11
Original line number Diff line number Diff line
@@ -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 @@ static int ccid3_hc_rx_add_hist(struct sock *sk, 
					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);

net/dccp/packet_history.h

+7 −6
Original line number Diff line number Diff line
@@ -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;
@@ -137,7 +138,7 @@ static inline struct dccp_rx_hist_entry * 
		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_ccval = dh->dccph_ccval;

		entry->dccphrx_type  = dh->dccph_type;

		entry->dccphrx_ndp   = ndp;

		do_gettimeofday(&(entry->dccphrx_tstamp));