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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 "spdk/stdinc.h"
#include "utils.h"
#include "vbdev_ocf.h"
static char *cache_modes[ocf_cache_mode_max] = {
[ocf_cache_mode_wt] = "wt",
[ocf_cache_mode_wb] = "wb",
[ocf_cache_mode_wa] = "wa",
[ocf_cache_mode_pt] = "pt",
[ocf_cache_mode_wi] = "wi",
[ocf_cache_mode_wo] = "wo",
};
ocf_cache_mode_t
ocf_get_cache_mode(const char *cache_mode)
{
int i;
for (i = 0; i < ocf_cache_mode_max; i++) {
if (strcmp(cache_mode, cache_modes[i]) == 0) {
return i;
}
}
return ocf_cache_mode_none;
}
const char *
ocf_get_cache_modename(ocf_cache_mode_t mode)
{
if (mode > ocf_cache_mode_none && mode < ocf_cache_mode_max) {
return cache_modes[mode];
} else {
return NULL;
}
}
int
vbdev_ocf_mngt_start(struct vbdev_ocf *vbdev, vbdev_ocf_mngt_fn *path,
vbdev_ocf_mngt_callback cb, void *cb_arg)
{
if (vbdev->mngt_ctx.current_step) {
return -EBUSY;
}
memset(&vbdev->mngt_ctx, 0, sizeof(vbdev->mngt_ctx));
vbdev->mngt_ctx.current_step = path;
vbdev->mngt_ctx.cb = cb;
vbdev->mngt_ctx.cb_arg = cb_arg;
(*vbdev->mngt_ctx.current_step)(vbdev);
return 0;
}
void
vbdev_ocf_mngt_stop(struct vbdev_ocf *vbdev, vbdev_ocf_mngt_fn *rollback_path, int status)
{
if (status) {
vbdev->mngt_ctx.status = status;
}
if (vbdev->mngt_ctx.status && rollback_path) {
vbdev->mngt_ctx.poller_fn = NULL;
vbdev->mngt_ctx.current_step = rollback_path;
(*vbdev->mngt_ctx.current_step)(vbdev);
return;
}
if (vbdev->mngt_ctx.cb) {
vbdev->mngt_ctx.cb(vbdev->mngt_ctx.status, vbdev, vbdev->mngt_ctx.cb_arg);
}
memset(&vbdev->mngt_ctx, 0, sizeof(vbdev->mngt_ctx));
}
void
vbdev_ocf_mngt_continue(struct vbdev_ocf *vbdev, int status)
{
if (vbdev->mngt_ctx.current_step == NULL) {
return;
}
assert((*vbdev->mngt_ctx.current_step) != NULL);
vbdev->mngt_ctx.status = status;
vbdev->mngt_ctx.current_step++;
if (*vbdev->mngt_ctx.current_step) {
(*vbdev->mngt_ctx.current_step)(vbdev);
return;
}
vbdev_ocf_mngt_stop(vbdev, NULL, 0);
}
int
vbdev_ocf_mngt_get_status(struct vbdev_ocf *vbdev)
{
return vbdev->mngt_ctx.status;
}
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