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| author | Felix Beck <felix.beck@de.ibm.com> | 2010-07-16 17:37:42 +0400 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-07-28 18:48:56 +0400 |
| commit | ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4 (patch) | |
| tree | 9903cbae6c03184687c51b4be926572913cda93f /drivers/s390/scsi/zfcp_fc.h | |
| parent | dcc18f48a2f1a44c5e8848f30d0cf53a8066c62a (diff) | |
| download | linux-ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4.tar.xz | |
[SCSI] zfcp: Introduce experimental support for DIF/DIX
Introduce support for DIF/DIX in zfcp: Report the capabilities for the
Scsi_host, map the protection data when issuing I/O requests and
handle the new error codes. Also add the fsf data_direction field to
the hba trace, it is useful information for debugging in that area.
This is an EXPERIMENTAL feature for now.
Signed-off-by: Felix Beck <felix.beck@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/s390/scsi/zfcp_fc.h')
| -rw-r--r-- | drivers/s390/scsi/zfcp_fc.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_fc.h b/drivers/s390/scsi/zfcp_fc.h index 85c37d2b82c2..938d50360166 100644 --- a/drivers/s390/scsi/zfcp_fc.h +++ b/drivers/s390/scsi/zfcp_fc.h @@ -220,6 +220,9 @@ void zfcp_fc_scsi_to_fcp(struct fcp_cmnd *fcp, struct scsi_cmnd *scsi) memcpy(fcp->fc_cdb, scsi->cmnd, scsi->cmd_len); fcp->fc_dl = scsi_bufflen(scsi); + + if (scsi_get_prot_type(scsi) == SCSI_PROT_DIF_TYPE1) + fcp->fc_dl += fcp->fc_dl / scsi->device->sector_size * 8; } /** |