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Bzero the kernel scb array after it is allocated otherwise the control byte

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used on the first transaction on an SCB is indeterminate.

Spaces -> tabs.
This commit is contained in:
Justin T. Gibbs 1996-11-07 06:39:44 +00:00
parent 286fe46c4b
commit ebcf5ea509
1 changed files with 5 additions and 3 deletions
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8
sys/i386/scsi/aic7xxx.c
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@ -32,7 +32,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: aic7xxx.c,v 1.82 1996/11/05 07:57:26 gibbs Exp $
* $Id: aic7xxx.c,v 1.83 1996/11/05 08:39:33 gibbs Exp $
*/
/*
* TODO:
@ -1940,6 +1940,8 @@ ahc_init(ahc)
"Failing attach\n");
return (-1);
}
/* At least the control byte of each hscb needs to be zeroed */
bzero(ahc->scb_data->hscbs, array_size);
/* Tell the sequencer where it can find the hscb array. */
hscb_physaddr = vtophys(ahc->scb_data->hscbs);
@ -2090,8 +2092,8 @@ ahc_scsi_cmd(xs)
hscb->control |= MSG_ORDERED_Q_TAG;
ahc->orderedtag &= ~mask;
} else if (hscb->control & DISCENB) {
if (ahc->tagenable & mask)
hscb->control |= TAG_ENB;
if (ahc->tagenable & mask)
hscb->control |= TAG_ENB;
}
hscb->tcl = ((xs->sc_link->target << 4) & 0xF0)
| (IS_SCSIBUS_B(ahc,xs->sc_link)? SELBUSB : 0)