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Diffstat (limited to 'src/spdk/lib/blob/request.h')
| -rw-r--r-- | src/spdk/lib/blob/request.h | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/src/spdk/lib/blob/request.h b/src/spdk/lib/blob/request.h new file mode 100644 index 000000000..81dc161db --- /dev/null +++ b/src/spdk/lib/blob/request.h @@ -0,0 +1,217 @@ +/*- + * BSD LICENSE + * + * Copyright (c) Intel Corporation. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef SPDK_BS_REQUEST_H +#define SPDK_BS_REQUEST_H + +#include "spdk/stdinc.h" + +#include "spdk/blob.h" + +enum spdk_bs_cpl_type { + SPDK_BS_CPL_TYPE_NONE, + SPDK_BS_CPL_TYPE_BS_BASIC, + SPDK_BS_CPL_TYPE_BS_HANDLE, + SPDK_BS_CPL_TYPE_BLOB_BASIC, + SPDK_BS_CPL_TYPE_BLOBID, + SPDK_BS_CPL_TYPE_BLOB_HANDLE, + SPDK_BS_CPL_TYPE_NESTED_SEQUENCE, +}; + +enum spdk_blob_op_type; + +struct spdk_bs_request_set; + +/* Use a sequence to submit a set of requests serially */ +typedef struct spdk_bs_request_set spdk_bs_sequence_t; + +/* Use a batch to submit a set of requests in parallel */ +typedef struct spdk_bs_request_set spdk_bs_batch_t; + +/* Use a user_op to queue a user operation for later execution */ +typedef struct spdk_bs_request_set spdk_bs_user_op_t; + +typedef void (*spdk_bs_nested_seq_complete)(void *cb_arg, spdk_bs_sequence_t *parent, int bserrno); + +struct spdk_bs_cpl { + enum spdk_bs_cpl_type type; + union { + struct { + spdk_bs_op_complete cb_fn; + void *cb_arg; + } bs_basic; + + struct { + spdk_bs_op_with_handle_complete cb_fn; + void *cb_arg; + struct spdk_blob_store *bs; + } bs_handle; + + struct { + spdk_blob_op_complete cb_fn; + void *cb_arg; + } blob_basic; + + struct { + spdk_blob_op_with_id_complete cb_fn; + void *cb_arg; + spdk_blob_id blobid; + } blobid; + + struct { + spdk_blob_op_with_handle_complete cb_fn; + void *cb_arg; + struct spdk_blob *blob; + } blob_handle; + + struct { + spdk_bs_nested_seq_complete cb_fn; + void *cb_arg; + spdk_bs_sequence_t *parent; + } nested_seq; + } u; +}; + +typedef void (*spdk_bs_sequence_cpl)(spdk_bs_sequence_t *sequence, + void *cb_arg, int bserrno); + +/* A generic request set. Can be a sequence, batch or a user_op. */ +struct spdk_bs_request_set { + struct spdk_bs_cpl cpl; + + int bserrno; + + struct spdk_bs_channel *channel; + + struct spdk_bs_dev_cb_args cb_args; + + union { + struct { + spdk_bs_sequence_cpl cb_fn; + void *cb_arg; + } sequence; + + struct { + uint32_t outstanding_ops; + uint32_t batch_closed; + spdk_bs_sequence_cpl cb_fn; + void *cb_arg; + } batch; + + struct spdk_bs_user_op_args { + int type; + int iovcnt; + struct spdk_blob *blob; + uint64_t offset; + uint64_t length; + spdk_blob_op_complete cb_fn; + void *cb_arg; + void *payload; /* cast to iov for readv/writev */ + } user_op; + } u; + + TAILQ_ENTRY(spdk_bs_request_set) link; +}; + +void bs_call_cpl(struct spdk_bs_cpl *cpl, int bserrno); + +spdk_bs_sequence_t *bs_sequence_start(struct spdk_io_channel *channel, + struct spdk_bs_cpl *cpl); + +void bs_sequence_read_bs_dev(spdk_bs_sequence_t *seq, struct spdk_bs_dev *bs_dev, + void *payload, uint64_t lba, uint32_t lba_count, + spdk_bs_sequence_cpl cb_fn, void *cb_arg); + +void bs_sequence_read_dev(spdk_bs_sequence_t *seq, void *payload, + uint64_t lba, uint32_t lba_count, + spdk_bs_sequence_cpl cb_fn, void *cb_arg); + +void bs_sequence_write_dev(spdk_bs_sequence_t *seq, void *payload, + uint64_t lba, uint32_t lba_count, + spdk_bs_sequence_cpl cb_fn, void *cb_arg); + +void bs_sequence_readv_bs_dev(spdk_bs_batch_t *batch, struct spdk_bs_dev *bs_dev, + struct iovec *iov, int iovcnt, uint64_t lba, uint32_t lba_count, + spdk_bs_sequence_cpl cb_fn, void *cb_arg); + +void bs_sequence_readv_dev(spdk_bs_batch_t *batch, struct iovec *iov, int iovcnt, + uint64_t lba, uint32_t lba_count, + spdk_bs_sequence_cpl cb_fn, void *cb_arg); + +void bs_sequence_writev_dev(spdk_bs_batch_t *batch, struct iovec *iov, int iovcnt, + uint64_t lba, uint32_t lba_count, + spdk_bs_sequence_cpl cb_fn, void *cb_arg); + +void bs_sequence_write_zeroes_dev(spdk_bs_sequence_t *seq, + uint64_t lba, uint32_t lba_count, + spdk_bs_sequence_cpl cb_fn, void *cb_arg); + +void bs_sequence_finish(spdk_bs_sequence_t *seq, int bserrno); + +void bs_user_op_sequence_finish(void *cb_arg, int bserrno); + +spdk_bs_batch_t *bs_batch_open(struct spdk_io_channel *channel, + struct spdk_bs_cpl *cpl); + +void bs_batch_read_bs_dev(spdk_bs_batch_t *batch, struct spdk_bs_dev *bs_dev, + void *payload, uint64_t lba, uint32_t lba_count); + +void bs_batch_read_dev(spdk_bs_batch_t *batch, void *payload, + uint64_t lba, uint32_t lba_count); + +void bs_batch_write_dev(spdk_bs_batch_t *batch, void *payload, + uint64_t lba, uint32_t lba_count); + +void bs_batch_unmap_dev(spdk_bs_batch_t *batch, + uint64_t lba, uint32_t lba_count); + +void bs_batch_write_zeroes_dev(spdk_bs_batch_t *batch, + uint64_t lba, uint32_t lba_count); + +void bs_batch_close(spdk_bs_batch_t *batch); + +spdk_bs_batch_t *bs_sequence_to_batch(spdk_bs_sequence_t *seq, + spdk_bs_sequence_cpl cb_fn, + void *cb_arg); + +spdk_bs_user_op_t *bs_user_op_alloc(struct spdk_io_channel *channel, struct spdk_bs_cpl *cpl, + enum spdk_blob_op_type op_type, struct spdk_blob *blob, + void *payload, int iovcnt, uint64_t offset, uint64_t length); + +void bs_user_op_execute(spdk_bs_user_op_t *op); + +void bs_user_op_abort(spdk_bs_user_op_t *op); + +void bs_sequence_to_batch_completion(void *cb_arg, int bserrno); + +#endif |