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Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

Browse source 
Conflicts:
	net/ipv4/Kconfig
	net/ipv4/tcp_timer.c
This commit is contained in:
David S. Miller 2010-10-04 11:56:38 -07:00
commit 21a180cda0
21 changed files with 124 additions and 59 deletions
Download patch file Download diff file Expand all files Collapse all files

4
net/ipv4/Kconfig
View file

@ -223,7 +223,7 @@ config NET_IPGRE_DEMUX
config NET_IPGRE
tristate "IP: GRE tunnels over IP"
depends on NET_IPGRE_DEMUX
depends on (IPV6 || IPV6=n) && NET_IPGRE_DEMUX
help
Tunneling means encapsulating data of one protocol type within
another protocol and sending it over a channel that understands the
@ -419,7 +419,7 @@ config INET_XFRM_MODE_BEET
If unsure, say Y.
config INET_LRO
bool "Large Receive Offload (ipv4/tcp)"
tristate "Large Receive Offload (ipv4/tcp)"
default y
---help---
Support for Large Receive Offload (ipv4/tcp).

14
net/ipv4/igmp.c
View file

@ -834,7 +834,7 @@ static void igmp_heard_query(struct in_device *in_dev, struct sk_buff *skb,
int mark = 0;
if (len == 8 || IGMP_V2_SEEN(in_dev)) {
if (len == 8) {
if (ih->code == 0) {
/* Alas, old v1 router presents here. */
@ -856,6 +856,18 @@ static void igmp_heard_query(struct in_device *in_dev, struct sk_buff *skb,
igmpv3_clear_delrec(in_dev);
} else if (len < 12) {
return; /* ignore bogus packet; freed by caller */
} else if (IGMP_V1_SEEN(in_dev)) {
/* This is a v3 query with v1 queriers present */
max_delay = IGMP_Query_Response_Interval;
group = 0;
} else if (IGMP_V2_SEEN(in_dev)) {
/* this is a v3 query with v2 queriers present;
* Interpretation of the max_delay code is problematic here.
* A real v2 host would use ih_code directly, while v3 has a
* different encoding. We use the v3 encoding as more likely
* to be intended in a v3 query.
*/
max_delay = IGMPV3_MRC(ih3->code)*(HZ/IGMP_TIMER_SCALE);
} else { /* v3 */
if (!pskb_may_pull(skb, sizeof(struct igmpv3_query)))
return;

2
net/ipv4/route.c
View file

@ -1232,7 +1232,7 @@ restart:
}
if (net_ratelimit())
printk(KERN_WARNING "Neighbour table overflow.\n");
printk(KERN_WARNING "ipv4: Neighbour table overflow.\n");
rt_drop(rt);
return -ENOBUFS;
}

2
net/ipv4/tcp.c
View file

@ -943,7 +943,7 @@ int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
sg = sk->sk_route_caps & NETIF_F_SG;
while (--iovlen >= 0) {
int seglen = iov->iov_len;
size_t seglen = iov->iov_len;
unsigned char __user *from = iov->iov_base;
iov++;

3
net/ipv4/tcp_input.c
View file

@ -2532,7 +2532,8 @@ static void tcp_mark_head_lost(struct sock *sk, int packets)
cnt += tcp_skb_pcount(skb);
if (cnt > packets) {
if (tcp_is_sack(tp) || (oldcnt >= packets))
if ((tcp_is_sack(tp) && !tcp_is_fack(tp)) ||
(oldcnt >= packets))
break;
mss = skb_shinfo(skb)->gso_size;

25
net/ipv4/tcp_timer.c
View file

@ -135,13 +135,16 @@ static void tcp_mtu_probing(struct inet_connection_sock *icsk, struct sock *sk)
/* This function calculates a "timeout" which is equivalent to the timeout of a
* TCP connection after "boundary" unsuccessful, exponentially backed-off
* retransmissions with an initial RTO of TCP_RTO_MIN.
* retransmissions with an initial RTO of TCP_RTO_MIN or TCP_TIMEOUT_INIT if
* syn_set flag is set.
*/
static bool retransmits_timed_out(struct sock *sk,
unsigned int boundary,
unsigned int timeout)
unsigned int timeout,
bool syn_set)
{
unsigned int linear_backoff_thresh, start_ts;
unsigned int rto_base = syn_set ? TCP_TIMEOUT_INIT : TCP_RTO_MIN;
if (!inet_csk(sk)->icsk_retransmits)
return false;
@ -152,12 +155,12 @@ static bool retransmits_timed_out(struct sock *sk,
start_ts = tcp_sk(sk)->retrans_stamp;
if (likely(timeout == 0)) {
linear_backoff_thresh = ilog2(TCP_RTO_MAX/TCP_RTO_MIN);
linear_backoff_thresh = ilog2(TCP_RTO_MAX/rto_base);
if (boundary <= linear_backoff_thresh)
timeout = ((2 << boundary) - 1) * TCP_RTO_MIN;
timeout = ((2 << boundary) - 1) * rto_base;
else
timeout = ((2 << linear_backoff_thresh) - 1) * TCP_RTO_MIN +
timeout = ((2 << linear_backoff_thresh) - 1) * rto_base +
(boundary - linear_backoff_thresh) * TCP_RTO_MAX;
}
return (tcp_time_stamp - start_ts) >= timeout;
@ -168,14 +171,15 @@ static int tcp_write_timeout(struct sock *sk)
{
struct inet_connection_sock *icsk = inet_csk(sk);
int retry_until;
bool do_reset;
bool do_reset, syn_set = 0;
if ((1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV)) {
if (icsk->icsk_retransmits)
dst_negative_advice(sk);
retry_until = icsk->icsk_syn_retries ? : sysctl_tcp_syn_retries;
syn_set = 1;
} else {
if (retransmits_timed_out(sk, sysctl_tcp_retries1, 0)) {
if (retransmits_timed_out(sk, sysctl_tcp_retries1, 0, 0)) {
/* Black hole detection */
tcp_mtu_probing(icsk, sk);
@ -188,7 +192,7 @@ static int tcp_write_timeout(struct sock *sk)
retry_until = tcp_orphan_retries(sk, alive);
do_reset = alive ||
!retransmits_timed_out(sk, retry_until, 0);
!retransmits_timed_out(sk, retry_until, 0, 0);
if (tcp_out_of_resources(sk, do_reset))
return 1;
@ -196,8 +200,7 @@ static int tcp_write_timeout(struct sock *sk)
}
if (retransmits_timed_out(sk, retry_until,
(1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV) ? 0 :
icsk->icsk_user_timeout)) {
syn_set ? 0 : icsk->icsk_user_timeout, syn_set)) {
/* Has it gone just too far? */
tcp_write_err(sk);
return 1;
@ -439,7 +442,7 @@ out_reset_timer:
icsk->icsk_rto = min(icsk->icsk_rto << 1, TCP_RTO_MAX);
}
inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS, icsk->icsk_rto, TCP_RTO_MAX);
if (retransmits_timed_out(sk, sysctl_tcp_retries1 + 1, 0))
if (retransmits_timed_out(sk, sysctl_tcp_retries1 + 1, 0, 0))
__sk_dst_reset(sk);
out:;