Date: Sat, 25 Apr 1998 10:31:53 -0500 (CDT) From: dave adkins <adkin003@tc.umn.edu> To: freebsd-current@FreeBSD.ORG Cc: gibbs@FreeBSD.ORG Subject: Cam and ncr 53c810 Message-ID: <Pine.NEB.3.96.980425092048.4371A-100000@samthedog>
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Has anyone gotten the ncr 53c810 running with the cam-980413 diff's? I
get "SCSI phase error fixup: CCB already dequeued" messages with the old
53c810 card i am using. I ended up adding a 400 uS delay in the
SIR_SENSE_FAILED case in ncr_int_sir().
case SIR_SENSE_FAILED:
/*-------------------------------------------
** While trying to select for
** getting the condition code,
** a target reselected us.
**-------------------------------------------
*/
if (DEBUG_FLAGS & DEBUG_RESTART) {
PRINT_ADDR(cp->ccb);
printf ("in getcc reselect by t%d.\n",
INB(nc_ssid) & 0x0f);
}
/*
** Mark this job
*/
cp->host_status = HS_BUSY;
cp->s_status = SCSI_STATUS_CHECK_COND;
np->target[cp->ccb->ccb_h.target_id].hold_cp = cp;
--> DELAY(400); /* Seems to be necessary for 53C810 to work */
/*
** And patch code to restart it.
*/
np->script->start0[0] = SCR_INT;
break;
I found that with DEBUG_RESTART enabled, the driver worked, with the
DEBUG_RESTART disabled, it failed with "CCB already dequeued". The bandaid
was a delay. The size of the delay is derived by trial and error.
dave adkins
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