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authorMartin K. Petersen <martin.petersen@oracle.com>2008-07-18 01:08:48 +0400
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-07-26 23:14:55 +0400
commit7027ad72a689797475973c6feb5f0b673382f779 (patch)
tree4f6daa1d509708fb340d09608d79557a9af57f00 /drivers/scsi/scsi_priv.h
parentdb007fc5e20c00b356e9ffe2d0e007398c65c837 (diff)
downloadlinux-7027ad72a689797475973c6feb5f0b673382f779.tar.xz
[SCSI] Support devices with protection information
Implement support for DMA of protection information for devices that are data integrity capable. - Add support for mapping an extra scatter-gather list containing the protection information. - Allocate protection scsi_data_buffer if host is DIX (integrity DMA) capable. - Accessor function for checking whether a device has protection enabled. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/scsi_priv.h')
-rw-r--r--drivers/scsi/scsi_priv.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index b33e72516ef8..79f0f7511204 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -77,6 +77,7 @@ extern void scsi_exit_queue(void);
struct request_queue;
struct request;
extern int scsi_prep_fn(struct request_queue *, struct request *);
+extern struct kmem_cache *scsi_sdb_cache;
/* scsi_proc.c */
#ifdef CONFIG_SCSI_PROC_FS