25df73f5d2
Add structure vbdev_ocf_mngt_ctx that is going to be used for asynchronous management operations. Using such context, dynamic memory allocations are no longer required (except for one time poller registration) This patch also adds functions to modify context in a predictable way. They are very important for complex flow of management operations in OCF bdev especially after whole OCF API gets changed to asynchronous. Change-Id: Ia402d51665330a553f7f3d74000e3636f0d6a598 Signed-off-by: Vitaliy Mysak <vitaliy.mysak@intel.com> Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/449556 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
60 lines
2.5 KiB
C
60 lines
2.5 KiB
C
/*-
|
|
* 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 VBDEV_OCF_UTILS_H
|
|
#define VBDEV_OCF_UTILS_H
|
|
|
|
#include <ocf/ocf.h>
|
|
#include "vbdev_ocf.h"
|
|
|
|
ocf_cache_mode_t ocf_get_cache_mode(const char *cache_mode);
|
|
const char *ocf_get_cache_modename(ocf_cache_mode_t mode);
|
|
|
|
/* Initiate management operation
|
|
* Receives NULL terminated array of functions (path)
|
|
* and callback (cb)
|
|
* and callback argument (cb_arg)
|
|
* This function may fail with ENOMEM or EBUSY */
|
|
int vbdev_ocf_mngt_start(struct vbdev_ocf *vbdev, vbdev_ocf_mngt_fn *path,
|
|
vbdev_ocf_mngt_callback cb, void *cb_arg);
|
|
|
|
/* Continue execution with polling operation (fn)
|
|
* fn must invoke vbdev_ocf_mngt_continue() to stop polling */
|
|
void vbdev_ocf_mngt_poll(struct vbdev_ocf *vbdev, vbdev_ocf_mngt_fn fn);
|
|
|
|
/* Continue execution with next function that is on path
|
|
* If next function is NULL, finish management operation and invoke callback */
|
|
void vbdev_ocf_mngt_continue(struct vbdev_ocf *vbdev, int status);
|
|
|
|
#endif
|