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scsi: scsi_debug: Use struct t10_pi_tuple instead of struct sd_dif_tuple 

And remove the declaration of the latter in sd.h as scsi_debug was the
only user.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Christoph Hellwig 2016-09-11 19:35:39 +02:00 committed by Martin K. Petersen
parent c08b3f9a27
commit 6ebf105cc0
2 changed files with 8 additions and 16 deletions
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15
drivers/scsi/scsi_debug.c
View File

@ -42,6 +42,7 @@
#include <linux/atomic.h>
#include <linux/hrtimer.h>
#include <linux/uuid.h>
#include <linux/t10-pi.h>
#include <net/checksum.h>
@ -627,7 +628,7 @@ static LIST_HEAD(sdebug_host_list);
static DEFINE_SPINLOCK(sdebug_host_list_lock);
static unsigned char *fake_storep; /* ramdisk storage */
static struct sd_dif_tuple *dif_storep; /* protection info */
static struct t10_pi_tuple *dif_storep; /* protection info */
static void *map_storep; /* provisioning map */
static unsigned long map_size;
@ -682,7 +683,7 @@ static void *fake_store(unsigned long long lba)
return fake_storep + lba * sdebug_sector_size;
}
static struct sd_dif_tuple *dif_store(sector_t sector)
static struct t10_pi_tuple *dif_store(sector_t sector)
{
sector = sector_div(sector, sdebug_store_sectors);
@ -2430,7 +2431,7 @@ static __be16 dif_compute_csum(const void *buf, int len)
return csum;
}
static int dif_verify(struct sd_dif_tuple *sdt, const void *data,
static int dif_verify(struct t10_pi_tuple *sdt, const void *data,
sector_t sector, u32 ei_lba)
{
__be16 csum = dif_compute_csum(data, sdebug_sector_size);
@ -2504,7 +2505,7 @@ static int prot_verify_read(struct scsi_cmnd *SCpnt, sector_t start_sec,
unsigned int sectors, u32 ei_lba)
{
unsigned int i;
struct sd_dif_tuple *sdt;
struct t10_pi_tuple *sdt;
sector_t sector;
for (i = 0; i < sectors; i++, ei_lba++) {
@ -2696,7 +2697,7 @@ static int prot_verify_write(struct scsi_cmnd *SCpnt, sector_t start_sec,
unsigned int sectors, u32 ei_lba)
{
int ret;
struct sd_dif_tuple *sdt;
struct t10_pi_tuple *sdt;
void *daddr;
sector_t sector = start_sec;
int ppage_offset;
@ -2722,7 +2723,7 @@ static int prot_verify_write(struct scsi_cmnd *SCpnt, sector_t start_sec,
}
for (ppage_offset = 0; ppage_offset < piter.length;
ppage_offset += sizeof(struct sd_dif_tuple)) {
ppage_offset += sizeof(struct t10_pi_tuple)) {
/* If we're at the end of the current
* data page advance to the next one
*/
@ -5026,7 +5027,7 @@ static int __init scsi_debug_init(void)
if (sdebug_dix) {
int dif_size;
dif_size = sdebug_store_sectors * sizeof(struct sd_dif_tuple);
dif_size = sdebug_store_sectors * sizeof(struct t10_pi_tuple);
dif_storep = vmalloc(dif_size);
pr_err("dif_storep %u bytes @ %p\n", dif_size, dif_storep);

9
drivers/scsi/sd.h
View File

@ -239,15 +239,6 @@ static inline unsigned int sd_prot_flag_mask(unsigned int prot_op)
return flag_mask[prot_op];
}
/*
* Data Integrity Field tuple.
*/
struct sd_dif_tuple {
__be16 guard_tag; /* Checksum */
__be16 app_tag; /* Opaque storage */
__be32 ref_tag; /* Target LBA or indirect LBA */
};
#ifdef CONFIG_BLK_DEV_INTEGRITY
extern void sd_dif_config_host(struct scsi_disk *);