* Copyright (c) University of British Columbia, 1984
* Copyright (c) 1990 The Regents of the University of California.
* This code is derived from software contributed to Berkeley by
* the Laboratory for Computation Vision and the Computer Science Department
* of the University of British Columbia.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* from: @(#)pk_timer.c 7.5 (Berkeley) 5/29/91
* $Id: pk_timer.c,v 1.3 1993/11/25 01:34:32 wollman Exp $
* Various timer values. They can be adjusted
* by patching the binary with adb if necessary.
int pk_t20
= 18 * PR_SLOWHZ
; /* restart timer */
int pk_t21
= 20 * PR_SLOWHZ
; /* call timer */
/* XXX pk_t22 is never used */
/*int pk_t22 = 18 * PR_SLOWHZ;*/ /* reset timer */
int pk_t23
= 18 * PR_SLOWHZ
; /* clear timer */
register struct pkcb
*pkp
;
register struct pklcd
*lcp
, **pp
;
register int lcns_jammed
, cant_restart
;
for (pkp
= pkcbhead
; pkp
; pkp
= pkp
->pk_next
) {
switch (pkp
-> pk_state
) {
* If restart failures are common, a link level
* reset should be initiated here.
if (lcp
-> lcd_timer
&& --lcp
-> lcd_timer
== 0)
pk_message (0, pkp
-> pk_xcp
,
"packet level restart failed");
lcns_jammed
= cant_restart
= 0;
for (pp
= &pkp
-> pk_chan
[1]; pp
<= &pkp
-> pk_chan
[pkp
-> pk_maxlcn
]; pp
++) {
switch (lcp
-> lcd_state
) {
if (--lcp
-> lcd_timer
== 0) {
lcp
-> lcd_so
-> so_error
= ETIMEDOUT
;
if (lcp
-> lcd_retry
>= 3)
if (--lcp
-> lcd_timer
== 0)
case DATA_TRANSFER
: /* lcn active */
if (lcns_jammed
> pkp
-> pk_maxlcn
/ 2 && cant_restart
== 0) {
pk_message (0, pkp
-> pk_xcp
, "%d lcns jammed: attempting restart", lcns_jammed
);