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dif: Rename parameters of dif_generate_stream to match related APIs

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using data_offset and data_len is consistent with related APIs,
and is done in this patch.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ic9d216e25880f7b5ab33b764f45d332c090fa88c
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/456291
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
This commit is contained in:
Shuhei Matsumoto 2019-05-30 10:18:11 +09:00 committed by Darek Stojaczyk
parent 6d156d5b7d
commit 3894a7bc68
2 changed files with 20 additions and 20 deletions
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6
include/spdk/dif.h
View File

@ -305,13 +305,13 @@ int spdk_dif_set_md_interleave_iovs(struct iovec *iovs, int iovcnt,
*
* \param iovs iovec array describing the extended LBA payload.
* \param iovcnt Number of elements in the iovec array.
* \param offset Offset to the newly read data in the extended LBA payload.
* \param read_len Length of the newly read data in the extended LBA payload.
* \param data_offset Offset to the newly read data in the extended LBA payload.
* \param data_len Length of the newly read data in the extended LBA payload.
* \param ctx DIF context.
*
* \return 0 on success and negated errno otherwise.
*/
int spdk_dif_generate_stream(struct iovec *iovs, int iovcnt,
uint32_t offset, uint32_t read_len,
uint32_t data_offset, uint32_t data_len,
const struct spdk_dif_ctx *ctx);
#endif /* SPDK_DIF_H */

34
lib/util/dif.c
View File

@ -1502,7 +1502,7 @@ spdk_dif_set_md_interleave_iovs(struct iovec *iovs, int iovcnt,
static int
dif_generate_stream(uint8_t *buf, uint32_t buf_len,
uint32_t offset, uint32_t read_len,
uint32_t data_offset, uint32_t data_len,
const struct spdk_dif_ctx *ctx)
{
uint32_t data_block_size, offset_blocks, num_blocks, i;
@ -1510,17 +1510,17 @@ dif_generate_stream(uint8_t *buf, uint32_t buf_len,
data_block_size = ctx->block_size - ctx->md_size;
offset_blocks = offset / data_block_size;
read_len += offset % data_block_size;
offset_blocks = data_offset / data_block_size;
data_len += data_offset % data_block_size;
offset = offset_blocks * ctx->block_size;
num_blocks = read_len / data_block_size;
data_offset = offset_blocks * ctx->block_size;
num_blocks = data_len / data_block_size;
if (offset + num_blocks * ctx->block_size > buf_len) {
if (data_offset + num_blocks * ctx->block_size > buf_len) {
return -ERANGE;
}
buf += offset;
buf += data_offset;
for (i = 0; i < num_blocks; i++) {
if (ctx->dif_flags & SPDK_DIF_FLAGS_GUARD_CHECK) {
@ -1537,7 +1537,7 @@ dif_generate_stream(uint8_t *buf, uint32_t buf_len,
static int
dif_generate_stream_split(struct iovec *iovs, int iovcnt,
uint32_t offset, uint32_t read_len,
uint32_t data_offset, uint32_t data_len,
const struct spdk_dif_ctx *ctx)
{
uint32_t data_block_size, offset_blocks, num_blocks, i;
@ -1545,19 +1545,19 @@ dif_generate_stream_split(struct iovec *iovs, int iovcnt,
data_block_size = ctx->block_size - ctx->md_size;
offset_blocks = offset / data_block_size;
read_len += offset % data_block_size;
offset_blocks = data_offset / data_block_size;
data_len += data_offset % data_block_size;
offset = offset_blocks * ctx->block_size;
num_blocks = read_len / data_block_size;
data_offset = offset_blocks * ctx->block_size;
num_blocks = data_len / data_block_size;
_dif_sgl_init(&sgl, iovs, iovcnt);
if (!_dif_sgl_is_valid(&sgl, offset + num_blocks * ctx->block_size)) {
if (!_dif_sgl_is_valid(&sgl, data_offset + num_blocks * ctx->block_size)) {
return -ERANGE;
}
_dif_sgl_advance(&sgl, offset);
_dif_sgl_advance(&sgl, data_offset);
for (i = 0; i < num_blocks; i++) {
_dif_generate_split(&sgl, offset_blocks + i, ctx);
@ -1568,7 +1568,7 @@ dif_generate_stream_split(struct iovec *iovs, int iovcnt,
int
spdk_dif_generate_stream(struct iovec *iovs, int iovcnt,
uint32_t offset, uint32_t read_len,
uint32_t data_offset, uint32_t data_len,
const struct spdk_dif_ctx *ctx)
{
if (iovs == NULL || iovcnt == 0) {
@ -1577,8 +1577,8 @@ spdk_dif_generate_stream(struct iovec *iovs, int iovcnt,
if (iovcnt == 1) {
return dif_generate_stream(iovs[0].iov_base, iovs[0].iov_len,
offset, read_len, ctx);
data_offset, data_len, ctx);
} else {
return dif_generate_stream_split(iovs, iovcnt, offset, read_len, ctx);
return dif_generate_stream_split(iovs, iovcnt, data_offset, data_len, ctx);
}
}