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Commit 128b6f9f authored by Dmitry Monakhov's avatar Dmitry Monakhov Committed by Jens Axboe
Browse files

t10-pi: Move opencoded contants to common header 



Signed-off-by: default avatarDmitry Monakhov <dmonakhov@openvz.org>
Reviewed-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent e23947bd

block/t10-pi.c

+3 −6
Original line number Diff line number Diff line
@@ -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;

		}

drivers/scsi/lpfc/lpfc_scsi.c

+3 −2
Original line number Diff line number Diff line
@@ -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;

				}

drivers/scsi/qla2xxx/qla_isr.c

+4 −4
Original line number Diff line number Diff line
@@ -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;

drivers/target/target_core_sbc.c

+1 −1
Original line number Diff line number Diff line
@@ -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;

			}

include/linux/t10-pi.h

+2 −0
Original line number Diff line number Diff line
@@ -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;