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Add a quirk type (and one for ARCHIVE Python's) that disables the

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dummy read at sa_mount that attempts to latch up density. This breaks
on at least one drive and sends it into the weeds.

Approved:	jkh
This commit is contained in:
mjacob 2000-02-03 18:29:25 +00:00
parent b785f6ceac
commit 343cf680a5
1 changed files with 33 additions and 24 deletions
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57
sys/cam/scsi/scsi_sa.c
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@ -155,7 +155,8 @@ typedef enum {
SA_QUIRK_FIXED = 0x02, /* force fixed mode */
SA_QUIRK_VARIABLE = 0x04, /* force variable mode */
SA_QUIRK_2FM = 0x08, /* Needs Two File Marks at EOD */
SA_QUIRK_1FM = 0x10 /* No more than 1 File Mark at EOD */
SA_QUIRK_1FM = 0x10, /* No more than 1 File Mark at EOD */
SA_QUIRK_NODREAD = 0x20 /* Don't try and dummy read density */
} sa_quirks;
/* units are bits 4-7, 16-21 (1024 units) */
@ -257,7 +258,11 @@ static struct sa_quirk_entry sa_quirk_table[] =
{
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
"Python 25601*", "*"}, SA_QUIRK_NOCOMP, 0
"Python 25601*", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_NODREAD, 0
},
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
"Python*", "*"}, SA_QUIRK_NODREAD, 0
},
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
@ -1828,23 +1833,27 @@ samount(struct cam_periph *periph, int oflags, dev_t dev)
error = ENOMEM;
goto exit;
}
scsi_sa_read_write(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG, 1,
FALSE, 0, 8192, (void *) rblim, 8192, SSD_FULL_SIZE,
120 * 60 * 1000);
(void) cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
&softc->device_stats);
QFRLS(ccb);
scsi_rewind(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT);
error = cam_periph_runccb(ccb, saerror, 0,
SF_NO_PRINT | SF_RETRY_SELTO | SF_RETRY_UA,
&softc->device_stats);
QFRLS(ccb);
if (error) {
xpt_print_path(ccb->ccb_h.path);
printf("unable to rewind after test read\n");
xpt_release_ccb(ccb);
goto exit;
if ((softc->quirks & SA_QUIRK_NODREAD) == 0) {
scsi_sa_read_write(&ccb->csio, 0, sadone,
MSG_SIMPLE_Q_TAG, 1, FALSE, 0, 8192,
(void *) rblim, 8192, SSD_FULL_SIZE,
120 * 60 * 1000);
(void) cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
&softc->device_stats);
QFRLS(ccb);
scsi_rewind(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT);
error = cam_periph_runccb(ccb, saerror, 0,
SF_NO_PRINT | SF_RETRY_SELTO | SF_RETRY_UA,
&softc->device_stats);
QFRLS(ccb);
if (error) {
xpt_print_path(ccb->ccb_h.path);
printf("unable to rewind after test read\n");
xpt_release_ccb(ccb);
goto exit;
}
}
/*
@ -2854,9 +2863,12 @@ saprevent(struct cam_periph *periph, int action)
if ((action == PR_PREVENT) && (softc->flags & SA_FLAG_TAPE_LOCKED) != 0)
return;
if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO))
/*
* We can be quiet about illegal requests.
*/
if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
sf = 0;
else
} else
sf = SF_QUIET_IR;
ccb = cam_periph_getccb(periph, 1);
@ -2865,9 +2877,6 @@ saprevent(struct cam_periph *periph, int action)
scsi_prevent(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, action,
SSD_FULL_SIZE, 100000);
/*
* We can be quiet about illegal requests.
*/
error = cam_periph_runccb(ccb, saerror, 0, sf, &softc->device_stats);
QFRLS(ccb);
if (error == 0) {