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Commit c68e64cf authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo Committed by David S. Miller
Browse files

[CCID3]: Reintroduce ccid3hctx_t_rto 



CCID3 keeps this variable in usecs, inet_connection_socks in jiffies,
so to avoid Mars orbiter losses lets reintroduce ccid3hctx_t_rto 8)

Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 33d043d6

net/dccp/ccids/ccid3.c

+5 −5
Original line number Diff line number Diff line
@@ -905,7 +905,7 @@ static void ccid3_hc_tx_no_feedback_timer(unsigned long data) 
			hctx->ccid3hctx_x = 10;

		}

		/* Schedule no feedback timer to expire in max(4 * R, 2 * s / X) */

		next_tmout = max_t(u32, inet_csk(sk)->icsk_rto, 

		next_tmout = max_t(u32, hctx->ccid3hctx_t_rto, 

				   2 * (hctx->ccid3hctx_s * 100000) / (hctx->ccid3hctx_x / 10));

		break;

	default:
@@ -1180,7 +1180,7 @@ static void ccid3_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb) 
			       r_sample);



		/* Update timeout interval */

		inet_csk(sk)->icsk_rto = max_t(u32, 4 * hctx->ccid3hctx_rtt,

		hctx->ccid3hctx_t_rto = max_t(u32, 4 * hctx->ccid3hctx_rtt,

					      USEC_PER_SEC);



		/* Update receive rate */
@@ -1227,7 +1227,7 @@ static void ccid3_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb) 
		/* to prevent divide by zero below */



		/* Schedule no feedback timer to expire in max(4 * R, 2 * s / X) */

		next_tmout = max(inet_csk(sk)->icsk_rto,

		next_tmout = max(hctx->ccid3hctx_t_rto,

				 (2 * (hctx->ccid3hctx_s * 100000) /

				  (hctx->ccid3hctx_x / 10)));

		/* maths with 100000 and 10 is to prevent overflow with 32 bit */
@@ -1340,7 +1340,7 @@ static int ccid3_hc_tx_init(struct sock *sk) 


	hctx->ccid3hctx_x     = hctx->ccid3hctx_s; /* set transmission rate to 1 packet per second */

	hctx->ccid3hctx_rtt   = 4; /* See ccid3_hc_tx_packet_sent win_count calculatation */

	inet_csk(sk)->icsk_rto = USEC_PER_SEC;

	hctx->ccid3hctx_t_rto = USEC_PER_SEC;

	hctx->ccid3hctx_state = TFRC_SSTATE_NO_SENT;

	INIT_LIST_HEAD(&hctx->ccid3hctx_hist);

	init_timer(&hctx->ccid3hctx_no_feedback_timer);

net/dccp/ccids/ccid3.h

+1 −0
Original line number Diff line number Diff line
@@ -80,6 +80,7 @@ struct ccid3_hc_tx_sock { 
	struct timer_list		ccid3hctx_no_feedback_timer;

	struct timeval			ccid3hctx_t_ld;

	struct timeval			ccid3hctx_t_nom;

	u32				ccid3hctx_t_rto;

	u32				ccid3hctx_t_ipi;

	u32				ccid3hctx_delta;

	struct list_head		ccid3hctx_hist;