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authorStephen Hemminger <shemminger@osdl.org>2005-06-23 12:19:55 -0700
committerDavid S. Miller <davem@davemloft.net>2005-06-23 12:19:55 -0700
commit317a76f9a44b437d6301718f4e5d08bd93f98da7 (patch)
treecaeba9839dee264f59b035b81c3d13d6c61b638e /net/ipv4/tcp_diag.c
parenta8ad86f2dc46356f87be1327dabc18bdbda32f50 (diff)
[TCP]: Add pluggable congestion control algorithm infrastructure.
Allow TCP to have multiple pluggable congestion control algorithms. Algorithms are defined by a set of operations and can be built in or modules. The legacy "new RENO" algorithm is used as a starting point and fallback. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_diag.c')
-rw-r--r--net/ipv4/tcp_diag.c20
1 files changed, 2 insertions, 18 deletions
diff --git a/net/ipv4/tcp_diag.c b/net/ipv4/tcp_diag.c
index 634befc0792..867acc0f79d 100644
--- a/net/ipv4/tcp_diag.c
+++ b/net/ipv4/tcp_diag.c
@@ -42,7 +42,6 @@ struct tcpdiag_entry
static struct sock *tcpnl;
-
#define TCPDIAG_PUT(skb, attrtype, attrlen) \
({ int rtalen = RTA_LENGTH(attrlen); \
struct rtattr *rta; \
@@ -61,7 +60,6 @@ static int tcpdiag_fill(struct sk_buff *skb, struct sock *sk,
struct nlmsghdr *nlh;
struct tcp_info *info = NULL;
struct tcpdiag_meminfo *minfo = NULL;
- struct tcpvegas_info *vinfo = NULL;
unsigned char *b = skb->tail;
nlh = NLMSG_PUT(skb, pid, seq, TCPDIAG_GETSOCK, sizeof(*r));
@@ -73,9 +71,6 @@ static int tcpdiag_fill(struct sk_buff *skb, struct sock *sk,
if (ext & (1<<(TCPDIAG_INFO-1)))
info = TCPDIAG_PUT(skb, TCPDIAG_INFO, sizeof(*info));
- if ((tcp_is_westwood(tp) || tcp_is_vegas(tp))
- && (ext & (1<<(TCPDIAG_VEGASINFO-1))))
- vinfo = TCPDIAG_PUT(skb, TCPDIAG_VEGASINFO, sizeof(*vinfo));
}
r->tcpdiag_family = sk->sk_family;
r->tcpdiag_state = sk->sk_state;
@@ -166,19 +161,8 @@ static int tcpdiag_fill(struct sk_buff *skb, struct sock *sk,
if (info)
tcp_get_info(sk, info);
- if (vinfo) {
- if (tcp_is_vegas(tp)) {
- vinfo->tcpv_enabled = tp->vegas.doing_vegas_now;
- vinfo->tcpv_rttcnt = tp->vegas.cntRTT;
- vinfo->tcpv_rtt = jiffies_to_usecs(tp->vegas.baseRTT);
- vinfo->tcpv_minrtt = jiffies_to_usecs(tp->vegas.minRTT);
- } else {
- vinfo->tcpv_enabled = 0;
- vinfo->tcpv_rttcnt = 0;
- vinfo->tcpv_rtt = jiffies_to_usecs(tp->westwood.rtt);
- vinfo->tcpv_minrtt = jiffies_to_usecs(tp->westwood.rtt_min);
- }
- }
+ if (sk->sk_state < TCP_TIME_WAIT && tp->ca_ops->get_info)
+ tp->ca_ops->get_info(tp, ext, skb);
nlh->nlmsg_len = skb->tail - b;
return skb->len;