Author: jhb
Date: Sat Dec 29 00:30:17 2018
New Revision: 342583
URL: https://svnweb.freebsd.org/changeset/base/342583
Log:
MFC 340304: Use tcp_state_change() in the cxgbe(4) TOE module.
r254889 added tcp_state_change() as a centralized place to log state
changes in TCP connections for DTrace. r294869 and r296881 took
advantage of this central location to manage per-state counters.
However, TOE sockets were still performing some (but not all) state
change updates via direct assignments to t_state. This resulted in
state counters underflowing when TOE was in use. Fix by using
tcp_state_change() when changing a TOE connection's state.
Modified:
stable/10/sys/dev/cxgbe/tom/t4_cpl_io.c
Directory Properties:
stable/10/ (props changed)
Changes in other areas also in this revision:
Modified:
stable/11/sys/dev/cxgbe/tom/t4_cpl_io.c
stable/12/sys/dev/cxgbe/tom/t4_cpl_io.c
Directory Properties:
stable/11/ (props changed)
stable/12/ (props changed)
Modified: stable/10/sys/dev/cxgbe/tom/t4_cpl_io.c
==============================================================================
--- stable/10/sys/dev/cxgbe/tom/t4_cpl_io.c Sat Dec 29 00:06:41 2018
(r342582)
+++ stable/10/sys/dev/cxgbe/tom/t4_cpl_io.c Sat Dec 29 00:30:17 2018
(r342583)
@@ -310,7 +310,7 @@ make_established(struct toepcb *toep, uint32_t snd_isn
CTR4(KTR_CXGBE, "%s: tid %d, toep %p, inp %p",
__func__, toep->tid, toep, inp);
- tp->t_state = TCPS_ESTABLISHED;
+ tcp_state_change(tp, TCPS_ESTABLISHED);
tp->t_starttime = ticks;
TCPSTAT_INC(tcps_connects);
@@ -1138,11 +1138,11 @@ do_peer_close(struct sge_iq *iq, const struct rss_head
/* FALLTHROUGH */
case TCPS_ESTABLISHED:
- tp->t_state = TCPS_CLOSE_WAIT;
+ tcp_state_change(tp, TCPS_CLOSE_WAIT);
break;
case TCPS_FIN_WAIT_1:
- tp->t_state = TCPS_CLOSING;
+ tcp_state_change(tp, TCPS_CLOSING);
break;
case TCPS_FIN_WAIT_2:
@@ -1223,7 +1223,7 @@ release:
case TCPS_FIN_WAIT_1:
if (so->so_rcv.sb_state & SBS_CANTRCVMORE)
soisdisconnected(so);
- tp->t_state = TCPS_FIN_WAIT_2;
+ tcp_state_change(tp, TCPS_FIN_WAIT_2);
break;
default:
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