If we're doing RSS then ensure the TCP timer selection uses the multi-CPU

callwheel setup, rather than just dumping all the timers on swi0.

sys/netinet/tcp_timer.c

@@ -127,7 +127,11 @@ SYSCTL_INT(_net_inet_tcp, OID_AUTO, rexmit_drop_options, CTLFLAG_RW,
     &tcp_rexmit_drop_options, 0,
     "Drop TCP options from 3rd and later retransmitted SYN");
 
+#ifdef	RSS
+static int	per_cpu_timers = 1;
+#else
 static int	per_cpu_timers = 0;
+#endif
 SYSCTL_INT(_net_inet_tcp, OID_AUTO, per_cpu_timers, CTLFLAG_RW,
     &per_cpu_timers , 0, "run tcp timers on all cpus");