mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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tcp: whitespace fixes
Fix places where there is space before tab, long lines, and awkward if(){, double spacing etc. Add blank line after declaration/initialization. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
d09d3038a3
commit
688d1945bc
@ -17,7 +17,6 @@
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#include <linux/module.h>
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#include <net/tcp.h>
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#define BICTCP_BETA_SCALE 1024 /* Scale factor beta calculation
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* max_cwnd = snd_cwnd * beta
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*/
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@ -46,11 +45,10 @@ MODULE_PARM_DESC(initial_ssthresh, "initial value of slow start threshold");
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module_param(smooth_part, int, 0644);
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MODULE_PARM_DESC(smooth_part, "log(B/(B*Smin))/log(B/(B-1))+B, # of RTT from Wmax-B to Wmax");
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/* BIC TCP Parameters */
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struct bictcp {
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u32 cnt; /* increase cwnd by 1 after ACKs */
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u32 last_max_cwnd; /* last maximum snd_cwnd */
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u32 last_max_cwnd; /* last maximum snd_cwnd */
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u32 loss_cwnd; /* congestion window at last loss */
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u32 last_cwnd; /* the last snd_cwnd */
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u32 last_time; /* time when updated last_cwnd */
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@ -103,7 +101,7 @@ static inline void bictcp_update(struct bictcp *ca, u32 cwnd)
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/* binary increase */
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if (cwnd < ca->last_max_cwnd) {
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__u32 dist = (ca->last_max_cwnd - cwnd)
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__u32 dist = (ca->last_max_cwnd - cwnd)
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/ BICTCP_B;
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if (dist > max_increment)
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@ -154,7 +152,6 @@ static void bictcp_cong_avoid(struct sock *sk, u32 ack, u32 acked)
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bictcp_update(ca, tp->snd_cwnd);
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tcp_cong_avoid_ai(tp, ca->cnt);
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}
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}
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/*
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@ -177,7 +174,6 @@ static u32 bictcp_recalc_ssthresh(struct sock *sk)
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ca->loss_cwnd = tp->snd_cwnd;
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if (tp->snd_cwnd <= low_window)
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return max(tp->snd_cwnd >> 1U, 2U);
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else
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@ -188,6 +184,7 @@ static u32 bictcp_undo_cwnd(struct sock *sk)
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{
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const struct tcp_sock *tp = tcp_sk(sk);
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const struct bictcp *ca = inet_csk_ca(sk);
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return max(tp->snd_cwnd, ca->loss_cwnd);
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}
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@ -206,12 +203,12 @@ static void bictcp_acked(struct sock *sk, u32 cnt, s32 rtt)
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if (icsk->icsk_ca_state == TCP_CA_Open) {
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struct bictcp *ca = inet_csk_ca(sk);
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cnt -= ca->delayed_ack >> ACK_RATIO_SHIFT;
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ca->delayed_ack += cnt;
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}
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}
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static struct tcp_congestion_ops bictcp __read_mostly = {
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.init = bictcp_init,
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.ssthresh = bictcp_recalc_ssthresh,
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@ -142,7 +142,6 @@ static int __init tcp_congestion_default(void)
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}
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late_initcall(tcp_congestion_default);
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/* Build string with list of available congestion control values */
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void tcp_get_available_congestion_control(char *buf, size_t maxlen)
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{
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@ -154,7 +153,6 @@ void tcp_get_available_congestion_control(char *buf, size_t maxlen)
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offs += snprintf(buf + offs, maxlen - offs,
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"%s%s",
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offs == 0 ? "" : " ", ca->name);
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}
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rcu_read_unlock();
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}
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@ -186,7 +184,6 @@ void tcp_get_allowed_congestion_control(char *buf, size_t maxlen)
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offs += snprintf(buf + offs, maxlen - offs,
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"%s%s",
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offs == 0 ? "" : " ", ca->name);
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}
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rcu_read_unlock();
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}
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@ -230,7 +227,6 @@ int tcp_set_allowed_congestion_control(char *val)
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return ret;
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}
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/* Change congestion control for socket */
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int tcp_set_congestion_control(struct sock *sk, const char *name)
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{
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@ -337,6 +333,7 @@ EXPORT_SYMBOL_GPL(tcp_reno_cong_avoid);
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u32 tcp_reno_ssthresh(struct sock *sk)
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{
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const struct tcp_sock *tp = tcp_sk(sk);
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return max(tp->snd_cwnd >> 1U, 2U);
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}
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EXPORT_SYMBOL_GPL(tcp_reno_ssthresh);
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@ -82,12 +82,13 @@ MODULE_PARM_DESC(hystart_ack_delta, "spacing between ack's indicating train (mse
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/* BIC TCP Parameters */
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struct bictcp {
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u32 cnt; /* increase cwnd by 1 after ACKs */
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u32 last_max_cwnd; /* last maximum snd_cwnd */
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u32 last_max_cwnd; /* last maximum snd_cwnd */
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u32 loss_cwnd; /* congestion window at last loss */
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u32 last_cwnd; /* the last snd_cwnd */
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u32 last_time; /* time when updated last_cwnd */
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u32 bic_origin_point;/* origin point of bic function */
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u32 bic_K; /* time to origin point from the beginning of the current epoch */
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u32 bic_K; /* time to origin point
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from the beginning of the current epoch */
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u32 delay_min; /* min delay (msec << 3) */
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u32 epoch_start; /* beginning of an epoch */
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u32 ack_cnt; /* number of acks */
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@ -219,7 +220,7 @@ static inline void bictcp_update(struct bictcp *ca, u32 cwnd)
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ca->last_time = tcp_time_stamp;
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if (ca->epoch_start == 0) {
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ca->epoch_start = tcp_time_stamp; /* record the beginning of an epoch */
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ca->epoch_start = tcp_time_stamp; /* record beginning */
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ca->ack_cnt = 1; /* start counting */
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ca->tcp_cwnd = cwnd; /* syn with cubic */
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@ -263,9 +264,9 @@ static inline void bictcp_update(struct bictcp *ca, u32 cwnd)
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/* c/rtt * (t-K)^3 */
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delta = (cube_rtt_scale * offs * offs * offs) >> (10+3*BICTCP_HZ);
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if (t < ca->bic_K) /* below origin*/
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if (t < ca->bic_K) /* below origin*/
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bic_target = ca->bic_origin_point - delta;
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else /* above origin*/
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else /* above origin*/
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bic_target = ca->bic_origin_point + delta;
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/* cubic function - calc bictcp_cnt*/
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@ -285,13 +286,14 @@ static inline void bictcp_update(struct bictcp *ca, u32 cwnd)
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/* TCP Friendly */
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if (tcp_friendliness) {
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u32 scale = beta_scale;
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delta = (cwnd * scale) >> 3;
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while (ca->ack_cnt > delta) { /* update tcp cwnd */
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ca->ack_cnt -= delta;
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ca->tcp_cwnd++;
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}
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if (ca->tcp_cwnd > cwnd){ /* if bic is slower than tcp */
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if (ca->tcp_cwnd > cwnd) { /* if bic is slower than tcp */
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delta = ca->tcp_cwnd - cwnd;
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max_cnt = cwnd / delta;
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if (ca->cnt > max_cnt)
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@ -320,7 +322,6 @@ static void bictcp_cong_avoid(struct sock *sk, u32 ack, u32 acked)
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bictcp_update(ca, tp->snd_cwnd);
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tcp_cong_avoid_ai(tp, ca->cnt);
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}
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}
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static u32 bictcp_recalc_ssthresh(struct sock *sk)
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@ -452,7 +453,8 @@ static int __init cubictcp_register(void)
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* based on SRTT of 100ms
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*/
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beta_scale = 8*(BICTCP_BETA_SCALE+beta)/ 3 / (BICTCP_BETA_SCALE - beta);
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beta_scale = 8*(BICTCP_BETA_SCALE+beta) / 3
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/ (BICTCP_BETA_SCALE - beta);
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cube_rtt_scale = (bic_scale * 10); /* 1024*c/rtt */
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@ -9,7 +9,6 @@
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/module.h>
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#include <linux/inet_diag.h>
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@ -35,13 +34,13 @@ static void tcp_diag_get_info(struct sock *sk, struct inet_diag_msg *r,
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}
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static void tcp_diag_dump(struct sk_buff *skb, struct netlink_callback *cb,
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struct inet_diag_req_v2 *r, struct nlattr *bc)
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struct inet_diag_req_v2 *r, struct nlattr *bc)
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{
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inet_diag_dump_icsk(&tcp_hashinfo, skb, cb, r, bc);
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}
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static int tcp_diag_dump_one(struct sk_buff *in_skb, const struct nlmsghdr *nlh,
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struct inet_diag_req_v2 *req)
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struct inet_diag_req_v2 *req)
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{
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return inet_diag_dump_one_icsk(&tcp_hashinfo, in_skb, nlh, req);
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}
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@ -9,7 +9,6 @@
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#include <linux/module.h>
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#include <net/tcp.h>
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/* From AIMD tables from RFC 3649 appendix B,
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* with fixed-point MD scaled <<8.
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*/
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@ -17,78 +16,78 @@ static const struct hstcp_aimd_val {
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unsigned int cwnd;
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unsigned int md;
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} hstcp_aimd_vals[] = {
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{ 38, 128, /* 0.50 */ },
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{ 118, 112, /* 0.44 */ },
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{ 221, 104, /* 0.41 */ },
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{ 347, 98, /* 0.38 */ },
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{ 495, 93, /* 0.37 */ },
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{ 663, 89, /* 0.35 */ },
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{ 851, 86, /* 0.34 */ },
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{ 1058, 83, /* 0.33 */ },
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{ 1284, 81, /* 0.32 */ },
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{ 1529, 78, /* 0.31 */ },
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{ 1793, 76, /* 0.30 */ },
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{ 2076, 74, /* 0.29 */ },
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{ 2378, 72, /* 0.28 */ },
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{ 2699, 71, /* 0.28 */ },
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{ 3039, 69, /* 0.27 */ },
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{ 3399, 68, /* 0.27 */ },
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{ 3778, 66, /* 0.26 */ },
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{ 4177, 65, /* 0.26 */ },
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{ 4596, 64, /* 0.25 */ },
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{ 5036, 62, /* 0.25 */ },
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{ 5497, 61, /* 0.24 */ },
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{ 5979, 60, /* 0.24 */ },
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{ 6483, 59, /* 0.23 */ },
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{ 7009, 58, /* 0.23 */ },
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{ 7558, 57, /* 0.22 */ },
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{ 8130, 56, /* 0.22 */ },
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{ 8726, 55, /* 0.22 */ },
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{ 9346, 54, /* 0.21 */ },
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{ 9991, 53, /* 0.21 */ },
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{ 10661, 52, /* 0.21 */ },
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{ 11358, 52, /* 0.20 */ },
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{ 12082, 51, /* 0.20 */ },
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{ 12834, 50, /* 0.20 */ },
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{ 13614, 49, /* 0.19 */ },
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{ 14424, 48, /* 0.19 */ },
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{ 15265, 48, /* 0.19 */ },
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{ 16137, 47, /* 0.19 */ },
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{ 17042, 46, /* 0.18 */ },
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{ 17981, 45, /* 0.18 */ },
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{ 18955, 45, /* 0.18 */ },
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{ 19965, 44, /* 0.17 */ },
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{ 21013, 43, /* 0.17 */ },
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{ 22101, 43, /* 0.17 */ },
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{ 23230, 42, /* 0.17 */ },
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{ 24402, 41, /* 0.16 */ },
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{ 25618, 41, /* 0.16 */ },
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{ 26881, 40, /* 0.16 */ },
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{ 28193, 39, /* 0.16 */ },
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{ 29557, 39, /* 0.15 */ },
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{ 30975, 38, /* 0.15 */ },
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{ 32450, 38, /* 0.15 */ },
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{ 33986, 37, /* 0.15 */ },
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{ 35586, 36, /* 0.14 */ },
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{ 37253, 36, /* 0.14 */ },
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{ 38992, 35, /* 0.14 */ },
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{ 40808, 35, /* 0.14 */ },
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{ 42707, 34, /* 0.13 */ },
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{ 44694, 33, /* 0.13 */ },
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{ 46776, 33, /* 0.13 */ },
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{ 48961, 32, /* 0.13 */ },
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{ 51258, 32, /* 0.13 */ },
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{ 53677, 31, /* 0.12 */ },
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{ 56230, 30, /* 0.12 */ },
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{ 58932, 30, /* 0.12 */ },
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{ 61799, 29, /* 0.12 */ },
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{ 64851, 28, /* 0.11 */ },
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{ 68113, 28, /* 0.11 */ },
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{ 71617, 27, /* 0.11 */ },
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{ 75401, 26, /* 0.10 */ },
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{ 79517, 26, /* 0.10 */ },
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{ 84035, 25, /* 0.10 */ },
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{ 89053, 24, /* 0.10 */ },
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{ 38, 128, /* 0.50 */ },
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{ 118, 112, /* 0.44 */ },
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{ 221, 104, /* 0.41 */ },
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{ 347, 98, /* 0.38 */ },
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{ 495, 93, /* 0.37 */ },
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{ 663, 89, /* 0.35 */ },
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{ 851, 86, /* 0.34 */ },
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{ 1058, 83, /* 0.33 */ },
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{ 1284, 81, /* 0.32 */ },
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{ 1529, 78, /* 0.31 */ },
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{ 1793, 76, /* 0.30 */ },
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{ 2076, 74, /* 0.29 */ },
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{ 2378, 72, /* 0.28 */ },
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{ 2699, 71, /* 0.28 */ },
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{ 3039, 69, /* 0.27 */ },
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{ 3399, 68, /* 0.27 */ },
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{ 3778, 66, /* 0.26 */ },
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{ 4177, 65, /* 0.26 */ },
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{ 4596, 64, /* 0.25 */ },
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{ 5036, 62, /* 0.25 */ },
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{ 5497, 61, /* 0.24 */ },
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{ 5979, 60, /* 0.24 */ },
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{ 6483, 59, /* 0.23 */ },
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{ 7009, 58, /* 0.23 */ },
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{ 7558, 57, /* 0.22 */ },
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{ 8130, 56, /* 0.22 */ },
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{ 8726, 55, /* 0.22 */ },
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{ 9346, 54, /* 0.21 */ },
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{ 9991, 53, /* 0.21 */ },
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{ 10661, 52, /* 0.21 */ },
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{ 11358, 52, /* 0.20 */ },
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{ 12082, 51, /* 0.20 */ },
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{ 12834, 50, /* 0.20 */ },
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{ 13614, 49, /* 0.19 */ },
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{ 14424, 48, /* 0.19 */ },
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{ 15265, 48, /* 0.19 */ },
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{ 16137, 47, /* 0.19 */ },
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{ 17042, 46, /* 0.18 */ },
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{ 17981, 45, /* 0.18 */ },
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{ 18955, 45, /* 0.18 */ },
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{ 19965, 44, /* 0.17 */ },
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{ 21013, 43, /* 0.17 */ },
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{ 22101, 43, /* 0.17 */ },
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{ 23230, 42, /* 0.17 */ },
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{ 24402, 41, /* 0.16 */ },
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{ 25618, 41, /* 0.16 */ },
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{ 26881, 40, /* 0.16 */ },
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{ 28193, 39, /* 0.16 */ },
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{ 29557, 39, /* 0.15 */ },
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{ 30975, 38, /* 0.15 */ },
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{ 32450, 38, /* 0.15 */ },
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{ 33986, 37, /* 0.15 */ },
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{ 35586, 36, /* 0.14 */ },
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{ 37253, 36, /* 0.14 */ },
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{ 38992, 35, /* 0.14 */ },
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{ 40808, 35, /* 0.14 */ },
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{ 42707, 34, /* 0.13 */ },
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{ 44694, 33, /* 0.13 */ },
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{ 46776, 33, /* 0.13 */ },
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{ 48961, 32, /* 0.13 */ },
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{ 51258, 32, /* 0.13 */ },
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{ 53677, 31, /* 0.12 */ },
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{ 56230, 30, /* 0.12 */ },
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{ 58932, 30, /* 0.12 */ },
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{ 61799, 29, /* 0.12 */ },
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{ 64851, 28, /* 0.11 */ },
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{ 68113, 28, /* 0.11 */ },
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{ 71617, 27, /* 0.11 */ },
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{ 75401, 26, /* 0.10 */ },
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{ 79517, 26, /* 0.10 */ },
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{ 84035, 25, /* 0.10 */ },
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{ 89053, 24, /* 0.10 */ },
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};
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#define HSTCP_AIMD_MAX ARRAY_SIZE(hstcp_aimd_vals)
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@ -98,7 +98,8 @@ static inline void measure_rtt(struct sock *sk, u32 srtt)
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}
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}
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static void measure_achieved_throughput(struct sock *sk, u32 pkts_acked, s32 rtt)
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static void measure_achieved_throughput(struct sock *sk,
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u32 pkts_acked, s32 rtt)
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{
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const struct inet_connection_sock *icsk = inet_csk(sk);
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const struct tcp_sock *tp = tcp_sk(sk);
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@ -148,8 +149,8 @@ static inline void htcp_beta_update(struct htcp *ca, u32 minRTT, u32 maxRTT)
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if (use_bandwidth_switch) {
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u32 maxB = ca->maxB;
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u32 old_maxB = ca->old_maxB;
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ca->old_maxB = ca->maxB;
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ca->old_maxB = ca->maxB;
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if (!between(5 * maxB, 4 * old_maxB, 6 * old_maxB)) {
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ca->beta = BETA_MIN;
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ca->modeswitch = 0;
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@ -270,6 +271,7 @@ static void htcp_state(struct sock *sk, u8 new_state)
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case TCP_CA_Open:
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{
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struct htcp *ca = inet_csk_ca(sk);
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if (ca->undo_last_cong) {
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ca->last_cong = jiffies;
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ca->undo_last_cong = 0;
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|
@ -29,7 +29,6 @@ static int rtt0 = 25;
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module_param(rtt0, int, 0644);
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MODULE_PARM_DESC(rtt0, "reference rout trip time (ms)");
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||||
/* This is called to refresh values for hybla parameters */
|
||||
static inline void hybla_recalc_param (struct sock *sk)
|
||||
{
|
||||
|
@ -284,7 +284,7 @@ static void tcp_illinois_cong_avoid(struct sock *sk, u32 ack, u32 acked)
|
||||
delta = (tp->snd_cwnd_cnt * ca->alpha) >> ALPHA_SHIFT;
|
||||
if (delta >= tp->snd_cwnd) {
|
||||
tp->snd_cwnd = min(tp->snd_cwnd + delta / tp->snd_cwnd,
|
||||
(u32) tp->snd_cwnd_clamp);
|
||||
(u32)tp->snd_cwnd_clamp);
|
||||
tp->snd_cwnd_cnt = 0;
|
||||
}
|
||||
}
|
||||
@ -299,7 +299,6 @@ static u32 tcp_illinois_ssthresh(struct sock *sk)
|
||||
return max(tp->snd_cwnd - ((tp->snd_cwnd * ca->beta) >> BETA_SHIFT), 2U);
|
||||
}
|
||||
|
||||
|
||||
/* Extract info for Tcp socket info provided via netlink. */
|
||||
static void tcp_illinois_info(struct sock *sk, u32 ext,
|
||||
struct sk_buff *skb)
|
||||
|
@ -90,7 +90,6 @@ int sysctl_tcp_tw_reuse __read_mostly;
|
||||
int sysctl_tcp_low_latency __read_mostly;
|
||||
EXPORT_SYMBOL(sysctl_tcp_low_latency);
|
||||
|
||||
|
||||
#ifdef CONFIG_TCP_MD5SIG
|
||||
static int tcp_v4_md5_hash_hdr(char *md5_hash, const struct tcp_md5sig_key *key,
|
||||
__be32 daddr, __be32 saddr, const struct tcphdr *th);
|
||||
@ -1269,7 +1268,7 @@ struct request_sock_ops tcp_request_sock_ops __read_mostly = {
|
||||
.send_ack = tcp_v4_reqsk_send_ack,
|
||||
.destructor = tcp_v4_reqsk_destructor,
|
||||
.send_reset = tcp_v4_send_reset,
|
||||
.syn_ack_timeout = tcp_syn_ack_timeout,
|
||||
.syn_ack_timeout = tcp_syn_ack_timeout,
|
||||
};
|
||||
|
||||
static const struct tcp_request_sock_ops tcp_request_sock_ipv4_ops = {
|
||||
@ -2183,7 +2182,7 @@ int tcp_seq_open(struct inode *inode, struct file *file)
|
||||
|
||||
s = ((struct seq_file *)file->private_data)->private;
|
||||
s->family = afinfo->family;
|
||||
s->last_pos = 0;
|
||||
s->last_pos = 0;
|
||||
return 0;
|
||||
}
|
||||
EXPORT_SYMBOL(tcp_seq_open);
|
||||
|
@ -83,7 +83,6 @@ static struct {
|
||||
struct tcp_log *log;
|
||||
} tcp_probe;
|
||||
|
||||
|
||||
static inline int tcp_probe_used(void)
|
||||
{
|
||||
return (tcp_probe.head - tcp_probe.tail) & (bufsize - 1);
|
||||
@ -101,7 +100,6 @@ static inline int tcp_probe_avail(void)
|
||||
si4.sin_addr.s_addr = inet->inet_##mem##addr; \
|
||||
} while (0) \
|
||||
|
||||
|
||||
/*
|
||||
* Hook inserted to be called before each receive packet.
|
||||
* Note: arguments must match tcp_rcv_established()!
|
||||
@ -194,8 +192,8 @@ static int tcpprobe_sprint(char *tbuf, int n)
|
||||
|
||||
return scnprintf(tbuf, n,
|
||||
"%lu.%09lu %pISpc %pISpc %d %#x %#x %u %u %u %u %u\n",
|
||||
(unsigned long) tv.tv_sec,
|
||||
(unsigned long) tv.tv_nsec,
|
||||
(unsigned long)tv.tv_sec,
|
||||
(unsigned long)tv.tv_nsec,
|
||||
&p->src, &p->dst, p->length, p->snd_nxt, p->snd_una,
|
||||
p->snd_cwnd, p->ssthresh, p->snd_wnd, p->srtt, p->rcv_wnd);
|
||||
}
|
||||
|
@ -31,10 +31,10 @@ static void tcp_scalable_cong_avoid(struct sock *sk, u32 ack, u32 acked)
|
||||
static u32 tcp_scalable_ssthresh(struct sock *sk)
|
||||
{
|
||||
const struct tcp_sock *tp = tcp_sk(sk);
|
||||
|
||||
return max(tp->snd_cwnd - (tp->snd_cwnd>>TCP_SCALABLE_MD_SCALE), 2U);
|
||||
}
|
||||
|
||||
|
||||
static struct tcp_congestion_ops tcp_scalable __read_mostly = {
|
||||
.ssthresh = tcp_scalable_ssthresh,
|
||||
.cong_avoid = tcp_scalable_cong_avoid,
|
||||
|
@ -51,7 +51,6 @@ MODULE_PARM_DESC(beta, "upper bound of packets in network");
|
||||
module_param(gamma, int, 0644);
|
||||
MODULE_PARM_DESC(gamma, "limit on increase (scale by 2)");
|
||||
|
||||
|
||||
/* There are several situations when we must "re-start" Vegas:
|
||||
*
|
||||
* o when a connection is established
|
||||
@ -133,7 +132,6 @@ EXPORT_SYMBOL_GPL(tcp_vegas_pkts_acked);
|
||||
|
||||
void tcp_vegas_state(struct sock *sk, u8 ca_state)
|
||||
{
|
||||
|
||||
if (ca_state == TCP_CA_Open)
|
||||
vegas_enable(sk);
|
||||
else
|
||||
@ -285,7 +283,6 @@ static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, u32 acked)
|
||||
/* Use normal slow start */
|
||||
else if (tp->snd_cwnd <= tp->snd_ssthresh)
|
||||
tcp_slow_start(tp, acked);
|
||||
|
||||
}
|
||||
|
||||
/* Extract info for Tcp socket info provided via netlink. */
|
||||
|
@ -175,7 +175,6 @@ static void tcp_veno_cong_avoid(struct sock *sk, u32 ack, u32 acked)
|
||||
} else
|
||||
tp->snd_cwnd_cnt++;
|
||||
}
|
||||
|
||||
}
|
||||
if (tp->snd_cwnd < 2)
|
||||
tp->snd_cwnd = 2;
|
||||
|
@ -42,7 +42,6 @@ struct westwood {
|
||||
u8 reset_rtt_min; /* Reset RTT min to next RTT sample*/
|
||||
};
|
||||
|
||||
|
||||
/* TCP Westwood functions and constants */
|
||||
#define TCP_WESTWOOD_RTT_MIN (HZ/20) /* 50ms */
|
||||
#define TCP_WESTWOOD_INIT_RTT (20*HZ) /* maybe too conservative?! */
|
||||
@ -153,7 +152,6 @@ static inline void update_rtt_min(struct westwood *w)
|
||||
w->rtt_min = min(w->rtt, w->rtt_min);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* @westwood_fast_bw
|
||||
* It is called when we are in fast path. In particular it is called when
|
||||
@ -208,7 +206,6 @@ static inline u32 westwood_acked_count(struct sock *sk)
|
||||
return w->cumul_ack;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* TCP Westwood
|
||||
* Here limit is evaluated as Bw estimation*RTTmin (for obtaining it
|
||||
@ -219,6 +216,7 @@ static u32 tcp_westwood_bw_rttmin(const struct sock *sk)
|
||||
{
|
||||
const struct tcp_sock *tp = tcp_sk(sk);
|
||||
const struct westwood *w = inet_csk_ca(sk);
|
||||
|
||||
return max_t(u32, (w->bw_est * w->rtt_min) / tp->mss_cache, 2);
|
||||
}
|
||||
|
||||
@ -254,12 +252,12 @@ static void tcp_westwood_event(struct sock *sk, enum tcp_ca_event event)
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* Extract info for Tcp socket info provided via netlink. */
|
||||
static void tcp_westwood_info(struct sock *sk, u32 ext,
|
||||
struct sk_buff *skb)
|
||||
{
|
||||
const struct westwood *ca = inet_csk_ca(sk);
|
||||
|
||||
if (ext & (1 << (INET_DIAG_VEGASINFO - 1))) {
|
||||
struct tcpvegas_info info = {
|
||||
.tcpv_enabled = 1,
|
||||
@ -271,7 +269,6 @@ static void tcp_westwood_info(struct sock *sk, u32 ext,
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static struct tcp_congestion_ops tcp_westwood __read_mostly = {
|
||||
.init = tcp_westwood_init,
|
||||
.ssthresh = tcp_reno_ssthresh,
|
||||
|
@ -54,10 +54,8 @@ static void tcp_yeah_init(struct sock *sk)
|
||||
/* Ensure the MD arithmetic works. This is somewhat pedantic,
|
||||
* since I don't think we will see a cwnd this large. :) */
|
||||
tp->snd_cwnd_clamp = min_t(u32, tp->snd_cwnd_clamp, 0xffffffff/128);
|
||||
|
||||
}
|
||||
|
||||
|
||||
static void tcp_yeah_pkts_acked(struct sock *sk, u32 pkts_acked, s32 rtt_us)
|
||||
{
|
||||
const struct inet_connection_sock *icsk = inet_csk(sk);
|
||||
@ -84,7 +82,7 @@ static void tcp_yeah_cong_avoid(struct sock *sk, u32 ack, u32 acked)
|
||||
/* Scalable */
|
||||
|
||||
tp->snd_cwnd_cnt += yeah->pkts_acked;
|
||||
if (tp->snd_cwnd_cnt > min(tp->snd_cwnd, TCP_SCALABLE_AI_CNT)){
|
||||
if (tp->snd_cwnd_cnt > min(tp->snd_cwnd, TCP_SCALABLE_AI_CNT)) {
|
||||
if (tp->snd_cwnd < tp->snd_cwnd_clamp)
|
||||
tp->snd_cwnd++;
|
||||
tp->snd_cwnd_cnt = 0;
|
||||
@ -120,7 +118,6 @@ static void tcp_yeah_cong_avoid(struct sock *sk, u32 ack, u32 acked)
|
||||
*/
|
||||
|
||||
if (after(ack, yeah->vegas.beg_snd_nxt)) {
|
||||
|
||||
/* We do the Vegas calculations only if we got enough RTT
|
||||
* samples that we can be reasonably sure that we got
|
||||
* at least one RTT sample that wasn't from a delayed ACK.
|
||||
@ -189,7 +186,6 @@ static void tcp_yeah_cong_avoid(struct sock *sk, u32 ack, u32 acked)
|
||||
}
|
||||
|
||||
yeah->lastQ = queue;
|
||||
|
||||
}
|
||||
|
||||
/* Save the extent of the current window so we can use this
|
||||
@ -205,7 +201,8 @@ static void tcp_yeah_cong_avoid(struct sock *sk, u32 ack, u32 acked)
|
||||
}
|
||||
}
|
||||
|
||||
static u32 tcp_yeah_ssthresh(struct sock *sk) {
|
||||
static u32 tcp_yeah_ssthresh(struct sock *sk)
|
||||
{
|
||||
const struct tcp_sock *tp = tcp_sk(sk);
|
||||
struct yeah *yeah = inet_csk_ca(sk);
|
||||
u32 reduction;
|
||||
|
Loading…
Reference in New Issue
Block a user