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[SCSI] sd: Use SCSI read/write(16) with > 32-bit LBA drives

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Force large capacity (> 0xFFFFFFFF blocks) drives to use READ/WRITE(16) instead
of READ/WRITE(10). Some(most/all?) USB enclosures do not like READ(10) commands
when a large capacity drive is installed. This issue was reported and discussed
here: http://marc.info/?l=linux-usb&m=135247705222324

Signed-off-by: Jason J. Herne <[email protected]>
Signed-off-by: James Bottomley <[email protected]>
This commit is contained in:
Jason J. Herne 2012-11-14 17:03:22 -05:00 • committed by James Bottomley
commit 53ad570be6
2 changed files with 4 additions and 1 deletions
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1
include/scsi/scsi_device.h
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@ -137,6 +137,7 @@ struct scsi_device {
unsigned use_10_for_ms:1; /* first try 10-byte mode sense/select */
unsigned no_report_opcodes:1; /* no REPORT SUPPORTED OPERATION CODES */
unsigned no_write_same:1; /* no WRITE SAME command */
unsigned use_16_for_rw:1; /* Use read/write(16) over read/write(10) */
unsigned skip_ms_page_8:1; /* do not use MODE SENSE page 0x08 */
unsigned skip_ms_page_3f:1; /* do not use MODE SENSE page 0x3f */
unsigned skip_vpd_pages:1; /* do not read VPD pages */