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Correct a bug where the chip could be unpaused in the middle of a bus

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or device reset error recovery operation.
This commit is contained in:
Justin T. Gibbs 1999-05-18 03:58:49 +00:00
parent 9950fb2a00
commit b1334ec97d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=47287
1 changed files with 35 additions and 23 deletions
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58
sys/dev/aic7xxx/aic7xxx.c
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@ -36,7 +36,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: aic7xxx.c,v 1.27 1999/05/14 05:07:21 gibbs Exp $
* $Id: aic7xxx.c,v 1.28 1999/05/17 21:53:50 gibbs Exp $
*/
/*
* A few notes on features of the driver.
@ -318,10 +318,12 @@ static void ahc_set_syncrate(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
struct cam_path *path,
struct ahc_syncrate *syncrate,
u_int period, u_int offset, u_int type);
u_int period, u_int offset, u_int type,
int paused);
static void ahc_set_width(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
struct cam_path *path, u_int width, u_int type);
struct cam_path *path, u_int width, u_int type,
int paused);
static void ahc_set_tags(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
int enable);
@ -1151,7 +1153,7 @@ ahc_create_path(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
static void
ahc_set_syncrate(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
struct cam_path *path, struct ahc_syncrate *syncrate,
u_int period, u_int offset, u_int type)
u_int period, u_int offset, u_int type, int paused)
{
struct ahc_initiator_tinfo *tinfo;
struct tmode_tstate *tstate;
@ -1276,12 +1278,12 @@ ahc_set_syncrate(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
ahc_update_target_msg_request(ahc, devinfo, tinfo,
/*force*/FALSE,
/*paused*/active);
paused);
}
static void
ahc_set_width(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
struct cam_path *path, u_int width, u_int type)
struct cam_path *path, u_int width, u_int type, int paused)
{
struct ahc_initiator_tinfo *tinfo;
struct tmode_tstate *tstate;
@ -1344,7 +1346,7 @@ ahc_set_width(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
tinfo->user.width = width;
ahc_update_target_msg_request(ahc, devinfo, tinfo,
/*force*/FALSE, /*paused*/active);
/*force*/FALSE, paused);
}
static void
@ -2857,10 +2859,12 @@ ahc_handle_msg_reject(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
devinfo->channel, devinfo->target);
ahc_set_width(ahc, devinfo, scb->ccb->ccb_h.path,
MSG_EXT_WDTR_BUS_8_BIT,
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL);
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL,
/*paused*/TRUE);
ahc_set_syncrate(ahc, devinfo, scb->ccb->ccb_h.path,
/*syncrate*/NULL, /*period*/0,
/*offset*/0, AHC_TRANS_ACTIVE);
/*offset*/0, AHC_TRANS_ACTIVE,
/*paused*/TRUE);
tinfo = ahc_fetch_transinfo(ahc, devinfo->channel,
devinfo->our_scsiid,
devinfo->target, &tstate);
@ -2881,7 +2885,8 @@ ahc_handle_msg_reject(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
ahc_set_syncrate(ahc, devinfo, scb->ccb->ccb_h.path,
/*syncrate*/NULL, /*period*/0,
/*offset*/0,
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL);
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL,
/*paused*/TRUE);
printf("%s:%c:%d: refuses synchronous negotiation. "
"Using asynchronous transfers\n",
ahc_name(ahc),
@ -3303,7 +3308,8 @@ ahc_parse_msg(struct ahc_softc *ahc, struct cam_path *path,
targ_scsirate & WIDEXFER);
ahc_set_syncrate(ahc, devinfo, path,
syncrate, period, offset,
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL);
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL,
/*paused*/TRUE);
/*
* See if we initiated Sync Negotiation
@ -3415,12 +3421,14 @@ ahc_parse_msg(struct ahc_softc *ahc, struct cam_path *path,
sending_reply = TRUE;
}
ahc_set_width(ahc, devinfo, path, bus_width,
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL);
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL,
/*paused*/TRUE);
/* After a wide message, we are async */
ahc_set_syncrate(ahc, devinfo, path,
/*syncrate*/NULL, /*period*/0,
/*offset*/0, AHC_TRANS_ACTIVE);
/*offset*/0, AHC_TRANS_ACTIVE,
/*paused*/TRUE);
if (sending_reply == FALSE && reject == FALSE) {
if (tinfo->goal.period) {
@ -3585,9 +3593,10 @@ ahc_handle_devreset(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
* paths.
*/
ahc_set_width(ahc, devinfo, path, MSG_EXT_WDTR_BUS_8_BIT,
AHC_TRANS_CUR);
AHC_TRANS_CUR, /*paused*/TRUE);
ahc_set_syncrate(ahc, devinfo, path, /*syncrate*/NULL,
/*period*/0, /*offset*/0, AHC_TRANS_CUR);
/*period*/0, /*offset*/0, AHC_TRANS_CUR,
/*paused*/TRUE);
found = ahc_abort_scbs(ahc, devinfo->target, devinfo->channel,
CAM_LUN_WILDCARD, SCB_LIST_NULL, status);
@ -4493,7 +4502,8 @@ ahc_action(struct cam_sim *sim, union ccb *ccb)
break;
}
ahc_set_width(ahc, &devinfo, cts->ccb_h.path,
cts->bus_width, update_type);
cts->bus_width, update_type,
/*paused*/FALSE);
}
if (((cts->valid & CCB_TRANS_SYNC_RATE_VALID) != 0)
@ -4533,7 +4543,8 @@ ahc_action(struct cam_sim *sim, union ccb *ccb)
ahc_set_syncrate(ahc, &devinfo, cts->ccb_h.path,
syncrate, cts->sync_period,
cts->sync_offset, update_type);
cts->sync_offset, update_type,
/*paused*/FALSE);
}
splx(s);
ccb->ccb_h.status = CAM_REQ_CMP;
@ -4710,13 +4721,13 @@ ahc_async(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg)
* for the next device.
*/
s = splcam();
pause_sequencer(ahc);
ahc_set_width(ahc, &devinfo, path, MSG_EXT_WDTR_BUS_8_BIT,
AHC_TRANS_GOAL|AHC_TRANS_CUR);
AHC_TRANS_GOAL|AHC_TRANS_CUR,
/*paused*/FALSE);
ahc_set_syncrate(ahc, &devinfo, path, /*syncrate*/NULL,
/*period*/0, /*offset*/0,
AHC_TRANS_GOAL|AHC_TRANS_CUR);
unpause_sequencer(ahc, /*unpause always*/FALSE);
AHC_TRANS_GOAL|AHC_TRANS_CUR,
/*paused*/FALSE);
splx(s);
break;
}
@ -5947,10 +5958,11 @@ ahc_reset_channel(struct ahc_softc *ahc, char channel, int initiate_reset)
channel, ROLE_UNKNOWN);
ahc_set_width(ahc, &devinfo, path,
MSG_EXT_WDTR_BUS_8_BIT,
AHC_TRANS_CUR);
AHC_TRANS_CUR, /*paused*/TRUE);
ahc_set_syncrate(ahc, &devinfo, path,
/*syncrate*/NULL, /*period*/0,
/*offset*/0, AHC_TRANS_CUR);
/*offset*/0, AHC_TRANS_CUR,
/*paused*/TRUE);
}
}