[src/trunk]: src/sys/dev/ic Stopgap measure for PR kern/12762: cut the number...

[bouyer <bouyer%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/bddaad67e1bf
branches:  trunk
changeset: 509144:bddaad67e1bf
user:      bouyer <bouyer%NetBSD.org@localhost>
date:      Fri Apr 27 14:49:11 2001 +0000

description:
Stopgap measure for PR kern/12762: cut the number of openings per device
to 16 or 4 (depending on capabilities of adapter), as it was before
thorpej_scsipi integration
Waiting feedback to known whenever the problem with openings set to AHC_SCB_MAX
existed before.

diffstat:

 sys/dev/ic/aic7xxx.c |  14 +++++++++++---
 1 files changed, 11 insertions(+), 3 deletions(-)

diffs (28 lines):

diff -r 125ca05ef00a -r bddaad67e1bf sys/dev/ic/aic7xxx.c
--- a/sys/dev/ic/aic7xxx.c      Fri Apr 27 14:21:15 2001 +0000
+++ b/sys/dev/ic/aic7xxx.c      Fri Apr 27 14:49:11 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: aic7xxx.c,v 1.71 2001/04/26 16:56:53 bouyer Exp $      */
+/*     $NetBSD: aic7xxx.c,v 1.72 2001/04/27 14:49:11 bouyer Exp $      */
 
 /*
  * Generic driver for the aic7xxx based adaptec SCSI controllers
@@ -1378,8 +1378,16 @@
 {
        ahc->sc_adapter.adapt_dev = &ahc->sc_dev;
        ahc->sc_adapter.adapt_nchannels = (ahc->features & AHC_TWIN) ? 2 : 1;
-       ahc->sc_adapter.adapt_openings = AHC_SCB_MAX;
-       ahc->sc_adapter.adapt_max_periph = AHC_SCB_MAX;
+       if (ahc->flags & AHC_PAGESCBS) {
+               ahc->sc_adapter.adapt_openings = AHC_SCB_MAX;
+               ahc->sc_adapter.adapt_max_periph = 16;
+       } else {
+               ahc->sc_adapter.adapt_openings =  ahc->scb_data->maxhscbs;
+               if (ahc->scb_data->maxhscbs >= 16)
+                       ahc->sc_adapter.adapt_max_periph = 16;
+               else
+                       ahc->sc_adapter.adapt_max_periph = 4;
+       }
        ahc->sc_adapter.adapt_ioctl = ahc_ioctl;
        ahc->sc_adapter.adapt_minphys = ahcminphys;
        ahc->sc_adapter.adapt_request = ahc_action;