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/*-
* 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.
*/
#include <ocf/ocf.h>
#include "spdk/bdev.h"
#include "data.h"
struct bdev_ocf_data *
vbdev_ocf_data_alloc(uint32_t iovcnt)
{
struct bdev_ocf_data *data;
data = env_malloc(sizeof(*data), ENV_MEM_NOIO);
if (!data) {
return NULL;
}
data->seek = 0;
if (iovcnt) {
data->iovs = env_malloc(sizeof(*data->iovs) * iovcnt, ENV_MEM_NOIO);
if (!data->iovs) {
env_free(data);
return NULL;
}
}
data->iovcnt = 0;
data->iovalloc = iovcnt;
return data;
}
void
vbdev_ocf_data_free(struct bdev_ocf_data *data)
{
if (!data) {
return;
}
if (data->iovalloc != 0) {
env_free(data->iovs);
}
env_free(data);
}
void
vbdev_ocf_iovs_add(struct bdev_ocf_data *data, void *base, size_t len)
{
assert(NULL != data);
assert(data->iovalloc != -1);
if (data->iovcnt == data->iovalloc) {
/* TODO: Realloc iovs */
SPDK_ERRLOG("IOV error\n");
}
data->iovs[data->iovcnt].iov_base = base;
data->iovs[data->iovcnt].iov_len = len;
data->iovcnt++;
}
struct bdev_ocf_data *
vbdev_ocf_data_from_spdk_io(struct spdk_bdev_io *bdev_io)
{
struct bdev_ocf_data *data;
if (bdev_io == NULL) {
return NULL;
}
switch (bdev_io->type) {
case SPDK_BDEV_IO_TYPE_WRITE:
case SPDK_BDEV_IO_TYPE_READ:
assert(bdev_io->u.bdev.iovs);
break;
case SPDK_BDEV_IO_TYPE_FLUSH:
case SPDK_BDEV_IO_TYPE_UNMAP:
break;
default:
SPDK_ERRLOG("Unsupported IO type %d\n", bdev_io->type);
return NULL;
}
data = (struct bdev_ocf_data *)bdev_io->driver_ctx;
data->iovs = bdev_io->u.bdev.iovs;
data->iovcnt = bdev_io->u.bdev.iovcnt;
data->size = bdev_io->u.bdev.num_blocks * bdev_io->bdev->blocklen;
return data;
}
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