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Add NO_RC16 quirk to make da driver avoid using READ CAPACITY(16) command

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if possible.  Use it for Kingston JetFlash USB sticks, that are known to
return garbage in response to that command.
This commit is contained in:
Alexander Motin 2013-07-30 13:00:09 +00:00
parent 12ebae77ad
commit 1c509c52b7
1 changed files with 11 additions and 3 deletions
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14
sys/cam/scsi/scsi_da.c
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@ -98,7 +98,8 @@ typedef enum {
DA_Q_NO_SYNC_CACHE = 0x01,
DA_Q_NO_6_BYTE = 0x02,
DA_Q_NO_PREVENT = 0x04,
DA_Q_4K = 0x08
DA_Q_4K = 0x08,
DA_Q_NO_RC16 = 0x10
} da_quirks;
#define DA_Q_BIT_STRING \
@ -106,7 +107,8 @@ typedef enum {
"\001NO_SYNC_CACHE" \
"\002NO_6_BYTE" \
"\003NO_PREVENT" \
"\0044K"
"\0044K" \
"\005NO_RC16"
typedef enum {
DA_CCB_PROBE_RC = 0x01,
@ -680,6 +682,11 @@ static struct da_quirk_entry da_quirk_table[] =
{T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler G3",
"1.00"}, /*quirks*/ DA_Q_NO_PREVENT
},
{
/* At least several Transcent USB sticks lie on RC16. */
{T_DIRECT, SIP_MEDIA_REMOVABLE, "JetFlash", "Transcend*",
"*"}, /*quirks*/ DA_Q_NO_RC16
},
/* ATA/SATA devices over SAS/USB/... */
{
/* Hitachi Advanced Format (4k) drives */
@ -2075,7 +2082,8 @@ daregister(struct cam_periph *periph, void *arg)
softc->minimum_cmd_size = 16;
/* Predict whether device may support READ CAPACITY(16). */
if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3) {
if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3 &&
(softc->quirks & DA_Q_NO_RC16) == 0) {
softc->flags |= DA_FLAG_CAN_RC16;
softc->state = DA_STATE_PROBE_RC16;
}