Author: mjacob
Date: Mon Feb 25 14:06:24 2013
New Revision: 247266
URL: http://svnweb.freebsd.org/changeset/base/247266
Log:
Don't try and negotiate sync mode if either period or offset are zero.
PR: kern/163064
Partially Submitted by: Peter <p...@citylink.dinoex.sub.org>
MFC after: 1 month
Modified:
head/sys/dev/sym/sym_hipd.c
Modified: head/sys/dev/sym/sym_hipd.c
==============================================================================
--- head/sys/dev/sym/sym_hipd.c Mon Feb 25 12:33:31 2013 (r247265)
+++ head/sys/dev/sym/sym_hipd.c Mon Feb 25 14:06:24 2013 (r247266)
@@ -8211,8 +8211,13 @@ static void sym_update_trans(hcb_p np, t
* Scale against driver configuration limits.
*/
if (tip->width > SYM_SETUP_MAX_WIDE) tip->width = SYM_SETUP_MAX_WIDE;
- if (tip->offset > SYM_SETUP_MAX_OFFS) tip->offset = SYM_SETUP_MAX_OFFS;
- if (tip->period < SYM_SETUP_MIN_SYNC) tip->period = SYM_SETUP_MIN_SYNC;
+ if (tip->period && tip->offset) {
+ if (tip->offset > SYM_SETUP_MAX_OFFS) tip->offset =
SYM_SETUP_MAX_OFFS;
+ if (tip->period < SYM_SETUP_MIN_SYNC) tip->period =
SYM_SETUP_MIN_SYNC;
+ } else {
+ tip->offset = 0;
+ tip->period = 0;
+ }
/*
* Scale against actual controller BUS width.
@@ -8231,21 +8236,23 @@ static void sym_update_trans(hcb_p np, t
/*
* Scale period factor and offset against controller limits.
*/
- if (tip->options & PPR_OPT_DT) {
- if (tip->period < np->minsync_dt)
- tip->period = np->minsync_dt;
- if (tip->period > np->maxsync_dt)
- tip->period = np->maxsync_dt;
- if (tip->offset > np->maxoffs_dt)
- tip->offset = np->maxoffs_dt;
- }
- else {
- if (tip->period < np->minsync)
- tip->period = np->minsync;
- if (tip->period > np->maxsync)
- tip->period = np->maxsync;
- if (tip->offset > np->maxoffs)
- tip->offset = np->maxoffs;
+ if (tip->offset && tip->period) {
+ if (tip->options & PPR_OPT_DT) {
+ if (tip->period < np->minsync_dt)
+ tip->period = np->minsync_dt;
+ if (tip->period > np->maxsync_dt)
+ tip->period = np->maxsync_dt;
+ if (tip->offset > np->maxoffs_dt)
+ tip->offset = np->maxoffs_dt;
+ }
+ else {
+ if (tip->period < np->minsync)
+ tip->period = np->minsync;
+ if (tip->period > np->maxsync)
+ tip->period = np->maxsync;
+ if (tip->offset > np->maxoffs)
+ tip->offset = np->maxoffs;
+ }
}
}
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