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block: use symbolic constants for t10_pi type

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Replace all hard-coded values with T10_PI_TYPES to make the code more
readable.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Max Gurtovoy 2019-09-16 18:44:28 +03:00 committed by Jens Axboe
parent 7ad67ca553
commit 5eaed68dd3
1 changed files with 14 additions and 14 deletions
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28
block/t10-pi.c
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@ -27,7 +27,7 @@ static __be16 t10_pi_ip_fn(void *data, unsigned int len)
* tag.
*/
static blk_status_t t10_pi_generate(struct blk_integrity_iter *iter,
csum_fn *fn, unsigned int type)
csum_fn *fn, enum t10_dif_type type)
{
unsigned int i;
@ -37,7 +37,7 @@ static blk_status_t t10_pi_generate(struct blk_integrity_iter *iter,
pi->guard_tag = fn(iter->data_buf, iter->interval);
pi->app_tag = 0;
if (type == 1)
if (type == T10_PI_TYPE1_PROTECTION)
pi->ref_tag = cpu_to_be32(lower_32_bits(iter->seed));
else
pi->ref_tag = 0;
@ -51,7 +51,7 @@ static blk_status_t t10_pi_generate(struct blk_integrity_iter *iter,
}
static blk_status_t t10_pi_verify(struct blk_integrity_iter *iter,
csum_fn *fn, unsigned int type)
csum_fn *fn, enum t10_dif_type type)
{
unsigned int i;
@ -60,8 +60,8 @@ static blk_status_t t10_pi_verify(struct blk_integrity_iter *iter,
__be16 csum;
switch (type) {
case 1:
case 2:
case T10_PI_TYPE1_PROTECTION:
case T10_PI_TYPE2_PROTECTION:
if (pi->app_tag == T10_PI_APP_ESCAPE)
goto next;
@ -74,7 +74,7 @@ static blk_status_t t10_pi_verify(struct blk_integrity_iter *iter,
return BLK_STS_PROTECTION;
}
break;
case 3:
case T10_PI_TYPE3_PROTECTION:
if (pi->app_tag == T10_PI_APP_ESCAPE &&
pi->ref_tag == T10_PI_REF_ESCAPE)
goto next;
@ -102,42 +102,42 @@ next:
static blk_status_t t10_pi_type1_generate_crc(struct blk_integrity_iter *iter)
{
return t10_pi_generate(iter, t10_pi_crc_fn, 1);
return t10_pi_generate(iter, t10_pi_crc_fn, T10_PI_TYPE1_PROTECTION);
}
static blk_status_t t10_pi_type1_generate_ip(struct blk_integrity_iter *iter)
{
return t10_pi_generate(iter, t10_pi_ip_fn, 1);
return t10_pi_generate(iter, t10_pi_ip_fn, T10_PI_TYPE1_PROTECTION);
}
static blk_status_t t10_pi_type1_verify_crc(struct blk_integrity_iter *iter)
{
return t10_pi_verify(iter, t10_pi_crc_fn, 1);
return t10_pi_verify(iter, t10_pi_crc_fn, T10_PI_TYPE1_PROTECTION);
}
static blk_status_t t10_pi_type1_verify_ip(struct blk_integrity_iter *iter)
{
return t10_pi_verify(iter, t10_pi_ip_fn, 1);
return t10_pi_verify(iter, t10_pi_ip_fn, T10_PI_TYPE1_PROTECTION);
}
static blk_status_t t10_pi_type3_generate_crc(struct blk_integrity_iter *iter)
{
return t10_pi_generate(iter, t10_pi_crc_fn, 3);
return t10_pi_generate(iter, t10_pi_crc_fn, T10_PI_TYPE3_PROTECTION);
}
static blk_status_t t10_pi_type3_generate_ip(struct blk_integrity_iter *iter)
{
return t10_pi_generate(iter, t10_pi_ip_fn, 3);
return t10_pi_generate(iter, t10_pi_ip_fn, T10_PI_TYPE3_PROTECTION);
}
static blk_status_t t10_pi_type3_verify_crc(struct blk_integrity_iter *iter)
{
return t10_pi_verify(iter, t10_pi_crc_fn, 3);
return t10_pi_verify(iter, t10_pi_crc_fn, T10_PI_TYPE3_PROTECTION);
}
static blk_status_t t10_pi_type3_verify_ip(struct blk_integrity_iter *iter)
{
return t10_pi_verify(iter, t10_pi_ip_fn, 3);
return t10_pi_verify(iter, t10_pi_ip_fn, T10_PI_TYPE3_PROTECTION);
}
const struct blk_integrity_profile t10_pi_type1_crc = {