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blobstore: add unmap and write zeros support

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Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: If89275acfb1560982e332148a99ed3c83f8cb34f

Reviewed-on: https://review.gerrithub.io/387609
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
This commit is contained in:
Maciej Szwed 2017-11-15 14:18:56 +01:00 committed by Daniel Verkamp
parent 65ff2125be
commit f6e075cd54
3 changed files with 50 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
include/spdk/blob.h
View File

@ -278,6 +278,14 @@ void spdk_bs_io_readv_blob(struct spdk_blob *blob, struct spdk_io_channel *chann
struct iovec *iov, int iovcnt, uint64_t offset, uint64_t length,
spdk_blob_op_complete cb_fn, void *cb_arg);
/* Unmap area of a blob. Offset is in pages from the beginning of the blob. */
void spdk_bs_io_unmap_blob(struct spdk_blob *blob, struct spdk_io_channel *channel,
uint64_t offset, uint64_t length, spdk_blob_op_complete cb_fn, void *cb_arg);
/* Write zeros into area of a blob. Offset is in pages from the beginning of the blob. */
void spdk_bs_io_write_zeroes_blob(struct spdk_blob *blob, struct spdk_io_channel *channel,
uint64_t offset, uint64_t length, spdk_blob_op_complete cb_fn, void *cb_arg);
/* Iterate through all blobs */
void spdk_bs_md_iter_first(struct spdk_blob_store *bs,
spdk_blob_op_with_handle_complete cb_fn, void *cb_arg);

41
lib/blob/blobstore.c
View File

@ -1054,9 +1054,9 @@ _spdk_blob_persist(spdk_bs_sequence_t *seq, struct spdk_blob *blob,
}
static void
_spdk_blob_request_submit_rw(struct spdk_blob *blob, struct spdk_io_channel *_channel,
_spdk_blob_request_submit_op(struct spdk_blob *blob, struct spdk_io_channel *_channel,
void *payload, uint64_t offset, uint64_t length,
spdk_blob_op_complete cb_fn, void *cb_arg, bool read)
spdk_blob_op_complete cb_fn, void *cb_arg, enum spdk_blob_op_type op_type)
{
spdk_bs_batch_t *batch;
struct spdk_bs_cpl cpl;
@ -1091,15 +1091,26 @@ _spdk_blob_request_submit_rw(struct spdk_blob *blob, struct spdk_io_channel *_ch
_spdk_bs_page_to_lba(blob->bs,
_spdk_bs_num_pages_to_cluster_boundary(blob, page)));
if (read) {
switch (op_type) {
case SPDK_BLOB_READ:
spdk_bs_batch_read(batch, buf, lba, lba_count);
} else {
break;
case SPDK_BLOB_WRITE:
spdk_bs_batch_write(batch, buf, lba, lba_count);
break;
case SPDK_BLOB_UNMAP:
spdk_bs_batch_unmap(batch, lba, lba_count);
break;
case SPDK_BLOB_WRITE_ZEROES:
spdk_bs_batch_write_zeroes(batch, lba, lba_count);
break;
}
length -= lba_count;
buf += _spdk_bs_lba_to_byte(blob->bs, lba_count);
page += _spdk_bs_lba_to_page(blob->bs, lba_count);
if (op_type == SPDK_BLOB_WRITE || op_type == SPDK_BLOB_READ) {
buf += _spdk_bs_lba_to_byte(blob->bs, lba_count);
}
}
spdk_bs_batch_close(batch);
@ -2799,18 +2810,34 @@ void spdk_bs_io_flush_channel(struct spdk_io_channel *channel,
cb_fn(cb_arg, 0);
}
void spdk_bs_io_unmap_blob(struct spdk_blob *blob, struct spdk_io_channel *channel,
uint64_t offset, uint64_t length, spdk_blob_op_complete cb_fn, void *cb_arg)
{
_spdk_blob_request_submit_op(blob, channel, NULL, offset, length, cb_fn, cb_arg,
SPDK_BLOB_UNMAP);
}
void spdk_bs_io_write_zeroes_blob(struct spdk_blob *blob, struct spdk_io_channel *channel,
uint64_t offset, uint64_t length, spdk_blob_op_complete cb_fn, void *cb_arg)
{
_spdk_blob_request_submit_op(blob, channel, NULL, offset, length, cb_fn, cb_arg,
SPDK_BLOB_WRITE_ZEROES);
}
void spdk_bs_io_write_blob(struct spdk_blob *blob, struct spdk_io_channel *channel,
void *payload, uint64_t offset, uint64_t length,
spdk_blob_op_complete cb_fn, void *cb_arg)
{
_spdk_blob_request_submit_rw(blob, channel, payload, offset, length, cb_fn, cb_arg, false);
_spdk_blob_request_submit_op(blob, channel, payload, offset, length, cb_fn, cb_arg,
SPDK_BLOB_WRITE);
}
void spdk_bs_io_read_blob(struct spdk_blob *blob, struct spdk_io_channel *channel,
void *payload, uint64_t offset, uint64_t length,
spdk_blob_op_complete cb_fn, void *cb_arg)
{
_spdk_blob_request_submit_rw(blob, channel, payload, offset, length, cb_fn, cb_arg, true);
_spdk_blob_request_submit_op(blob, channel, payload, offset, length, cb_fn, cb_arg,
SPDK_BLOB_READ);
}
void spdk_bs_io_writev_blob(struct spdk_blob *blob, struct spdk_io_channel *channel,

8
lib/blob/blobstore.h
View File

@ -177,6 +177,14 @@ struct spdk_bs_channel {
struct spdk_io_channel *dev_channel;
};
/** operation type */
enum spdk_blob_op_type {
SPDK_BLOB_WRITE,
SPDK_BLOB_READ,
SPDK_BLOB_UNMAP,
SPDK_BLOB_WRITE_ZEROES,
};
/* On-Disk Data Structures
*
* The following data structures exist on disk.