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Index: sys/dev/cxgbe/tom/t4_tom.c
===================================================================
--- sys/dev/cxgbe/tom/t4_tom.c
+++ sys/dev/cxgbe/tom/t4_tom.c
@@ -59,6 +59,7 @@
#include <netinet6/scope6_var.h>
#define TCPSTATES
#include <netinet/tcp_fsm.h>
+#include <netinet/tcp_timer.h>
#include <netinet/tcp_var.h>
#include <netinet/toecore.h>
@@ -553,8 +554,6 @@
return (wscale);
}
-extern int always_keepalive;
-
/*
* socket so could be a listening socket too.
*/
@@ -573,7 +572,7 @@
if (so != NULL) {
struct inpcb *inp = sotoinpcb(so);
struct tcpcb *tp = intotcpcb(inp);
- int keepalive = always_keepalive ||
+ int keepalive = tcp_always_keepalive ||
so_options_get(so) & SO_KEEPALIVE;
opt0 |= V_NAGLE((tp->t_flags & TF_NODELAY) == 0);
Index: sys/netinet/tcp_timer.h
===================================================================
--- sys/netinet/tcp_timer.h
+++ sys/netinet/tcp_timer.h
@@ -197,6 +197,7 @@
extern int tcp_backoff[];
extern int tcp_syn_backoff[];
+extern int tcp_always_keepalive;
extern int tcp_finwait2_timeout;
extern int tcp_fast_finwait2_recycle;
Index: sys/netinet/tcp_timer.c
===================================================================
--- sys/netinet/tcp_timer.c
+++ sys/netinet/tcp_timer.c
@@ -118,9 +118,9 @@
&tcp_rexmit_slop, 0, sysctl_msec_to_ticks, "I",
"Retransmission Timer Slop");
-static int always_keepalive = 1;
+int tcp_always_keepalive = 1;
SYSCTL_INT(_net_inet_tcp, OID_AUTO, always_keepalive, CTLFLAG_RW,
- &always_keepalive , 0, "Assume SO_KEEPALIVE on all TCP connections");
+ &tcp_always_keepalive , 0, "Assume SO_KEEPALIVE on all TCP connections");
int tcp_fast_finwait2_recycle = 0;
SYSCTL_INT(_net_inet_tcp, OID_AUTO, fast_finwait2_recycle, CTLFLAG_RW,
@@ -471,7 +471,8 @@
TCPSTAT_INC(tcps_keeptimeo);
if (tp->t_state < TCPS_ESTABLISHED)
goto dropit;
- if ((always_keepalive || inp->inp_socket->so_options & SO_KEEPALIVE) &&
+ if ((tcp_always_keepalive ||
+ inp->inp_socket->so_options & SO_KEEPALIVE) &&
tp->t_state <= TCPS_CLOSING) {
if (ticks - tp->t_rcvtime >= TP_KEEPIDLE(tp) + TP_MAXIDLE(tp))
goto dropit;

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