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t10-pi: Move opencoded contants to common header

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Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Dmitry Monakhov 2017-06-29 11:31:12 -07:00 committed by Jens Axboe
parent e23947bd76
commit 128b6f9fdd
5 changed files with 13 additions and 13 deletions
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9
block/t10-pi.c
View File

@ -28,9 +28,6 @@
typedef __be16 (csum_fn) (void *, unsigned int);
static const __be16 APP_ESCAPE = (__force __be16) 0xffff;
static const __be32 REF_ESCAPE = (__force __be32) 0xffffffff;
static __be16 t10_pi_crc_fn(void *data, unsigned int len)
{
return cpu_to_be16(crc_t10dif(data, len));
@ -82,7 +79,7 @@ static blk_status_t t10_pi_verify(struct blk_integrity_iter *iter,
switch (type) {
case 1:
case 2:
if (pi->app_tag == APP_ESCAPE)
if (pi->app_tag == T10_PI_APP_ESCAPE)
goto next;
if (be32_to_cpu(pi->ref_tag) !=
@ -95,8 +92,8 @@ static blk_status_t t10_pi_verify(struct blk_integrity_iter *iter,
}
break;
case 3:
if (pi->app_tag == APP_ESCAPE &&
pi->ref_tag == REF_ESCAPE)
if (pi->app_tag == T10_PI_APP_ESCAPE &&
pi->ref_tag == T10_PI_REF_ESCAPE)
goto next;
break;
}

5
drivers/scsi/lpfc/lpfc_scsi.c
View File

@ -26,6 +26,7 @@
#include <linux/export.h>
#include <linux/delay.h>
#include <asm/unaligned.h>
#include <linux/t10-pi.h>
#include <linux/crc-t10dif.h>
#include <net/checksum.h>
@ -2934,8 +2935,8 @@ lpfc_calc_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
* First check to see if a protection data
* check is valid
*/
if ((src->ref_tag == 0xffffffff) ||
(src->app_tag == 0xffff)) {
if ((src->ref_tag == T10_PI_REF_ESCAPE) ||
(src->app_tag == T10_PI_APP_ESCAPE)) {
start_ref_tag++;
goto skipit;
}

8
drivers/scsi/qla2xxx/qla_isr.c
View File

@ -1950,9 +1950,9 @@ qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
* For type 3: ref & app tag is all 'f's
* For type 0,1,2: app tag is all 'f's
*/
if ((a_app_tag == 0xffff) &&
if ((a_app_tag == T10_PI_APP_ESCAPE) &&
((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
(a_ref_tag == 0xffffffff))) {
(a_ref_tag == T10_PI_REF_ESCAPE))) {
uint32_t blocks_done, resid;
sector_t lba_s = scsi_get_lba(cmd);
@ -1994,9 +1994,9 @@ qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
spt = page_address(sg_page(sg)) + sg->offset;
spt += j;
spt->app_tag = 0xffff;
spt->app_tag = T10_PI_APP_ESCAPE;
if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
spt->ref_tag = 0xffffffff;
spt->ref_tag = T10_PI_REF_ESCAPE;
}
return 0;

2
drivers/target/target_core_sbc.c
View File

@ -1450,7 +1450,7 @@ sbc_dif_verify(struct se_cmd *cmd, sector_t start, unsigned int sectors,
(unsigned long long)sector, sdt->guard_tag,
sdt->app_tag, be32_to_cpu(sdt->ref_tag));
if (sdt->app_tag == cpu_to_be16(0xffff)) {
if (sdt->app_tag == T10_PI_APP_ESCAPE) {
dsg_off += block_size;
goto next;
}

2
include/linux/t10-pi.h
View File

@ -33,6 +33,8 @@ struct t10_pi_tuple {
__be32 ref_tag; /* Target LBA or indirect LBA */
};
#define T10_PI_APP_ESCAPE cpu_to_be16(0xffff)
#define T10_PI_REF_ESCAPE cpu_to_be32(0xffffffff)
extern const struct blk_integrity_profile t10_pi_type1_crc;
extern const struct blk_integrity_profile t10_pi_type1_ip;