* http://www.hamilton.ie/net/htcp3.pdf
*/
-#include <linux/config.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <net/tcp.h>
MODULE_PARM_DESC(use_bandwidth_switch, "turn on/off bandwidth switcher");
struct htcp {
- u16 alpha; /* Fixed point arith, << 7 */
+ u32 alpha; /* Fixed point arith, << 7 */
u8 beta; /* Fixed point arith, << 7 */
u8 modeswitch; /* Delay modeswitch until we had at least one congestion event */
- u32 last_cong; /* Time since last congestion event end */
- u32 undo_last_cong;
u16 pkts_acked;
u32 packetcount;
u32 minRTT;
u32 maxRTT;
+ u32 last_cong; /* Time since last congestion event end */
+ u32 undo_last_cong;
u32 undo_maxRTT;
u32 undo_old_maxB;
}
}
-/* Lower bound on congestion window. */
-static u32 htcp_min_cwnd(struct sock *sk)
-{
- const struct tcp_sock *tp = tcp_sk(sk);
- return tp->snd_ssthresh;
-}
-
-
static void htcp_init(struct sock *sk)
{
struct htcp *ca = inet_csk_ca(sk);
static struct tcp_congestion_ops htcp = {
.init = htcp_init,
.ssthresh = htcp_recalc_ssthresh,
- .min_cwnd = htcp_min_cwnd,
.cong_avoid = htcp_cong_avoid,
.set_state = htcp_state,
.undo_cwnd = htcp_cwnd_undo,
static int __init htcp_register(void)
{
- BUG_ON(sizeof(struct htcp) > ICSK_CA_PRIV_SIZE);
+ BUILD_BUG_ON(sizeof(struct htcp) > ICSK_CA_PRIV_SIZE);
BUILD_BUG_ON(BETA_MIN >= BETA_MAX);
return tcp_register_congestion_control(&htcp);
}