diff options
| -rw-r--r-- | drivers/scsi/scsi_devinfo.c | 1 | ||||
| -rw-r--r-- | drivers/scsi/scsi_scan.c | 6 | ||||
| -rw-r--r-- | include/scsi/scsi_devinfo.h | 1 |
3 files changed, 8 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c index 262ab837a704..9f77d23239a2 100644 --- a/drivers/scsi/scsi_devinfo.c +++ b/drivers/scsi/scsi_devinfo.c @@ -226,6 +226,7 @@ static struct { {"PIONEER", "CD-ROM DRM-624X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, {"Promise", "VTrak E610f", NULL, BLIST_SPARSELUN | BLIST_NO_RSOC}, {"Promise", "", NULL, BLIST_SPARSELUN}, + {"QNAP", "iSCSI Storage", NULL, BLIST_MAX_1024}, {"QUANTUM", "XP34301", "1071", BLIST_NOTQ}, {"REGAL", "CDC-4X", NULL, BLIST_MAX5LUN | BLIST_SINGLELUN}, {"SanDisk", "ImageMate CF-SD1", NULL, BLIST_FORCELUN}, diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 60aae01caa89..6efab1c455e1 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -897,6 +897,12 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result, */ if (*bflags & BLIST_MAX_512) blk_queue_max_hw_sectors(sdev->request_queue, 512); + /* + * Max 1024 sector transfer length for targets that report incorrect + * max/optimal lengths and relied on the old block layer safe default + */ + else if (*bflags & BLIST_MAX_1024) + blk_queue_max_hw_sectors(sdev->request_queue, 1024); /* * Some devices may not want to have a start command automatically diff --git a/include/scsi/scsi_devinfo.h b/include/scsi/scsi_devinfo.h index 183eaab7c380..96e3f56519e7 100644 --- a/include/scsi/scsi_devinfo.h +++ b/include/scsi/scsi_devinfo.h @@ -36,5 +36,6 @@ for sequential scan */ #define BLIST_TRY_VPD_PAGES 0x10000000 /* Attempt to read VPD pages */ #define BLIST_NO_RSOC 0x20000000 /* don't try to issue RSOC */ +#define BLIST_MAX_1024 0x40000000 /* maximum 1024 sector cdb length */ #endif |