diff options
Diffstat (limited to 'net/ipv4/tcp_vegas.c')
-rw-r--r-- | net/ipv4/tcp_vegas.c | 44 |
1 files changed, 23 insertions, 21 deletions
diff --git a/net/ipv4/tcp_vegas.c b/net/ipv4/tcp_vegas.c index 9bd443db5193..054de24efee2 100644 --- a/net/ipv4/tcp_vegas.c +++ b/net/ipv4/tcp_vegas.c | |||
@@ -82,9 +82,10 @@ struct vegas { | |||
82 | * Instead we must wait until the completion of an RTT during | 82 | * Instead we must wait until the completion of an RTT during |
83 | * which we actually receive ACKs. | 83 | * which we actually receive ACKs. |
84 | */ | 84 | */ |
85 | static inline void vegas_enable(struct tcp_sock *tp) | 85 | static inline void vegas_enable(struct sock *sk) |
86 | { | 86 | { |
87 | struct vegas *vegas = tcp_ca(tp); | 87 | const struct tcp_sock *tp = tcp_sk(sk); |
88 | struct vegas *vegas = inet_csk_ca(sk); | ||
88 | 89 | ||
89 | /* Begin taking Vegas samples next time we send something. */ | 90 | /* Begin taking Vegas samples next time we send something. */ |
90 | vegas->doing_vegas_now = 1; | 91 | vegas->doing_vegas_now = 1; |
@@ -97,19 +98,19 @@ static inline void vegas_enable(struct tcp_sock *tp) | |||
97 | } | 98 | } |
98 | 99 | ||
99 | /* Stop taking Vegas samples for now. */ | 100 | /* Stop taking Vegas samples for now. */ |
100 | static inline void vegas_disable(struct tcp_sock *tp) | 101 | static inline void vegas_disable(struct sock *sk) |
101 | { | 102 | { |
102 | struct vegas *vegas = tcp_ca(tp); | 103 | struct vegas *vegas = inet_csk_ca(sk); |
103 | 104 | ||
104 | vegas->doing_vegas_now = 0; | 105 | vegas->doing_vegas_now = 0; |
105 | } | 106 | } |
106 | 107 | ||
107 | static void tcp_vegas_init(struct tcp_sock *tp) | 108 | static void tcp_vegas_init(struct sock *sk) |
108 | { | 109 | { |
109 | struct vegas *vegas = tcp_ca(tp); | 110 | struct vegas *vegas = inet_csk_ca(sk); |
110 | 111 | ||
111 | vegas->baseRTT = 0x7fffffff; | 112 | vegas->baseRTT = 0x7fffffff; |
112 | vegas_enable(tp); | 113 | vegas_enable(sk); |
113 | } | 114 | } |
114 | 115 | ||
115 | /* Do RTT sampling needed for Vegas. | 116 | /* Do RTT sampling needed for Vegas. |
@@ -120,9 +121,9 @@ static void tcp_vegas_init(struct tcp_sock *tp) | |||
120 | * o min-filter RTT samples from a much longer window (forever for now) | 121 | * o min-filter RTT samples from a much longer window (forever for now) |
121 | * to find the propagation delay (baseRTT) | 122 | * to find the propagation delay (baseRTT) |
122 | */ | 123 | */ |
123 | static void tcp_vegas_rtt_calc(struct tcp_sock *tp, u32 usrtt) | 124 | static void tcp_vegas_rtt_calc(struct sock *sk, u32 usrtt) |
124 | { | 125 | { |
125 | struct vegas *vegas = tcp_ca(tp); | 126 | struct vegas *vegas = inet_csk_ca(sk); |
126 | u32 vrtt = usrtt + 1; /* Never allow zero rtt or baseRTT */ | 127 | u32 vrtt = usrtt + 1; /* Never allow zero rtt or baseRTT */ |
127 | 128 | ||
128 | /* Filter to find propagation delay: */ | 129 | /* Filter to find propagation delay: */ |
@@ -136,13 +137,13 @@ static void tcp_vegas_rtt_calc(struct tcp_sock *tp, u32 usrtt) | |||
136 | vegas->cntRTT++; | 137 | vegas->cntRTT++; |
137 | } | 138 | } |
138 | 139 | ||
139 | static void tcp_vegas_state(struct tcp_sock *tp, u8 ca_state) | 140 | static void tcp_vegas_state(struct sock *sk, u8 ca_state) |
140 | { | 141 | { |
141 | 142 | ||
142 | if (ca_state == TCP_CA_Open) | 143 | if (ca_state == TCP_CA_Open) |
143 | vegas_enable(tp); | 144 | vegas_enable(sk); |
144 | else | 145 | else |
145 | vegas_disable(tp); | 146 | vegas_disable(sk); |
146 | } | 147 | } |
147 | 148 | ||
148 | /* | 149 | /* |
@@ -154,20 +155,21 @@ static void tcp_vegas_state(struct tcp_sock *tp, u8 ca_state) | |||
154 | * packets, _then_ we can make Vegas calculations | 155 | * packets, _then_ we can make Vegas calculations |
155 | * again. | 156 | * again. |
156 | */ | 157 | */ |
157 | static void tcp_vegas_cwnd_event(struct tcp_sock *tp, enum tcp_ca_event event) | 158 | static void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event) |
158 | { | 159 | { |
159 | if (event == CA_EVENT_CWND_RESTART || | 160 | if (event == CA_EVENT_CWND_RESTART || |
160 | event == CA_EVENT_TX_START) | 161 | event == CA_EVENT_TX_START) |
161 | tcp_vegas_init(tp); | 162 | tcp_vegas_init(sk); |
162 | } | 163 | } |
163 | 164 | ||
164 | static void tcp_vegas_cong_avoid(struct tcp_sock *tp, u32 ack, | 165 | static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, |
165 | u32 seq_rtt, u32 in_flight, int flag) | 166 | u32 seq_rtt, u32 in_flight, int flag) |
166 | { | 167 | { |
167 | struct vegas *vegas = tcp_ca(tp); | 168 | struct tcp_sock *tp = tcp_sk(sk); |
169 | struct vegas *vegas = inet_csk_ca(sk); | ||
168 | 170 | ||
169 | if (!vegas->doing_vegas_now) | 171 | if (!vegas->doing_vegas_now) |
170 | return tcp_reno_cong_avoid(tp, ack, seq_rtt, in_flight, flag); | 172 | return tcp_reno_cong_avoid(sk, ack, seq_rtt, in_flight, flag); |
171 | 173 | ||
172 | /* The key players are v_beg_snd_una and v_beg_snd_nxt. | 174 | /* The key players are v_beg_snd_una and v_beg_snd_nxt. |
173 | * | 175 | * |
@@ -219,7 +221,7 @@ static void tcp_vegas_cong_avoid(struct tcp_sock *tp, u32 ack, | |||
219 | * but that's not too awful, since we're taking the min, | 221 | * but that's not too awful, since we're taking the min, |
220 | * rather than averaging. | 222 | * rather than averaging. |
221 | */ | 223 | */ |
222 | tcp_vegas_rtt_calc(tp, seq_rtt*1000); | 224 | tcp_vegas_rtt_calc(sk, seq_rtt * 1000); |
223 | 225 | ||
224 | /* We do the Vegas calculations only if we got enough RTT | 226 | /* We do the Vegas calculations only if we got enough RTT |
225 | * samples that we can be reasonably sure that we got | 227 | * samples that we can be reasonably sure that we got |
@@ -359,10 +361,10 @@ static void tcp_vegas_cong_avoid(struct tcp_sock *tp, u32 ack, | |||
359 | } | 361 | } |
360 | 362 | ||
361 | /* Extract info for Tcp socket info provided via netlink. */ | 363 | /* Extract info for Tcp socket info provided via netlink. */ |
362 | static void tcp_vegas_get_info(struct tcp_sock *tp, u32 ext, | 364 | static void tcp_vegas_get_info(struct sock *sk, u32 ext, |
363 | struct sk_buff *skb) | 365 | struct sk_buff *skb) |
364 | { | 366 | { |
365 | const struct vegas *ca = tcp_ca(tp); | 367 | const struct vegas *ca = inet_csk_ca(sk); |
366 | if (ext & (1<<(TCPDIAG_VEGASINFO-1))) { | 368 | if (ext & (1<<(TCPDIAG_VEGASINFO-1))) { |
367 | struct tcpvegas_info *info; | 369 | struct tcpvegas_info *info; |
368 | 370 | ||
@@ -393,7 +395,7 @@ static struct tcp_congestion_ops tcp_vegas = { | |||
393 | 395 | ||
394 | static int __init tcp_vegas_register(void) | 396 | static int __init tcp_vegas_register(void) |
395 | { | 397 | { |
396 | BUG_ON(sizeof(struct vegas) > TCP_CA_PRIV_SIZE); | 398 | BUG_ON(sizeof(struct vegas) > ICSK_CA_PRIV_SIZE); |
397 | tcp_register_congestion_control(&tcp_vegas); | 399 | tcp_register_congestion_control(&tcp_vegas); |
398 | return 0; | 400 | return 0; |
399 | } | 401 | } |