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path: root/drivers/scsi/sd_dif.c
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Diffstat (limited to 'drivers/scsi/sd_dif.c')
-rw-r--r--drivers/scsi/sd_dif.c65
1 files changed, 0 insertions, 65 deletions
diff --git a/drivers/scsi/sd_dif.c b/drivers/scsi/sd_dif.c
index 82f14a9482d..88da9774571 100644
--- a/drivers/scsi/sd_dif.c
+++ b/drivers/scsi/sd_dif.c
@@ -320,15 +320,6 @@ void sd_dif_config_host(struct scsi_disk *sdkp)
dif = 0; dix = 1;
}
- if (type) {
- if (dif)
- sd_printk(KERN_NOTICE, sdkp,
- "Enabling DIF Type %d protection\n", type);
- else
- sd_printk(KERN_NOTICE, sdkp,
- "Disabling DIF Type %d protection\n", type);
- }
-
if (!dix)
return;
@@ -360,62 +351,6 @@ void sd_dif_config_host(struct scsi_disk *sdkp)
}
/*
- * DIF DMA operation magic decoder ring.
- */
-void sd_dif_op(struct scsi_cmnd *scmd, unsigned int dif, unsigned int dix, unsigned int type)
-{
- int csum_convert, prot_op;
-
- prot_op = 0;
-
- /* Convert checksum? */
- if (scsi_host_get_guard(scmd->device->host) != SHOST_DIX_GUARD_CRC)
- csum_convert = 1;
- else
- csum_convert = 0;
-
- BUG_ON(dif && (scmd->cmnd[0] == READ_6 || scmd->cmnd[0] == WRITE_6));
-
- switch (scmd->cmnd[0]) {
- case READ_6:
- case READ_10:
- case READ_12:
- case READ_16:
- if (dif && dix)
- if (csum_convert)
- prot_op = SCSI_PROT_READ_CONVERT;
- else
- prot_op = SCSI_PROT_READ_PASS;
- else if (dif && !dix)
- prot_op = SCSI_PROT_READ_STRIP;
- else if (!dif && dix)
- prot_op = SCSI_PROT_READ_INSERT;
-
- break;
-
- case WRITE_6:
- case WRITE_10:
- case WRITE_12:
- case WRITE_16:
- if (dif && dix)
- if (csum_convert)
- prot_op = SCSI_PROT_WRITE_CONVERT;
- else
- prot_op = SCSI_PROT_WRITE_PASS;
- else if (dif && !dix)
- prot_op = SCSI_PROT_WRITE_INSERT;
- else if (!dif && dix)
- prot_op = SCSI_PROT_WRITE_STRIP;
-
- break;
- }
-
- scsi_set_prot_op(scmd, prot_op);
- if (dif)
- scsi_set_prot_type(scmd, type);
-}
-
-/*
* The virtual start sector is the one that was originally submitted
* by the block layer. Due to partitioning, MD/DM cloning, etc. the
* actual physical start sector is likely to be different. Remap