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H A Dscsi_debug.cc6a44287 Sun Jan 04 02:08:19 CST 2009 Martin K. Petersen <martin.petersen@oracle.com> [SCSI] scsi_debug: DIF/DIX support

This patch adds support for DIX and DIF in scsi_debug. A separate
buffer is allocated for the protection information.

- The dix parameter indicates whether the controller supports DIX
(protection information DMA)

- The dif parameter indicates whether the simulated storage device
supports DIF

- The guard parameter switches between T10 CRC(0) and IP checksum(1)

- The ato parameter indicates whether the application tag is owned by
the disk(0) or the OS(1)

- DIF and DIX errors can be triggered using the scsi_debug_opts mask

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
c6a44287 Sun Jan 04 02:08:19 CST 2009 Martin K. Petersen <martin.petersen@oracle.com> [SCSI] scsi_debug: DIF/DIX support

This patch adds support for DIX and DIF in scsi_debug. A separate
buffer is allocated for the protection information.

- The dix parameter indicates whether the controller supports DIX
(protection information DMA)

- The dif parameter indicates whether the simulated storage device
supports DIF

- The guard parameter switches between T10 CRC(0) and IP checksum(1)

- The ato parameter indicates whether the application tag is owned by
the disk(0) or the OS(1)

- DIF and DIX errors can be triggered using the scsi_debug_opts mask

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>