8fcb8b966d
- Use consistent cache line size units in KiB across RPC calls and config files. The KiB units are much easier to use then the bytes units and are more human readable. - Properly handle cache start when cache line size is incorrect. - Add test to check if cache line size value is reported correctly. - Add cache line size info to JSON RPC documentation. Fixes #1858 Signed-off-by: Rafal Stefanowski <rafal.stefanowski@intel.com> Change-Id: Iec9ede85f6884b64605d2d112947b3f175cbd938 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7614 Community-CI: Broadcom CI Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com> Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
143 lines
3.7 KiB
C
143 lines
3.7 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "spdk/stdinc.h"
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#include "utils.h"
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#include "vbdev_ocf.h"
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static char *cache_modes[ocf_cache_mode_max] = {
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[ocf_cache_mode_wt] = "wt",
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[ocf_cache_mode_wb] = "wb",
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[ocf_cache_mode_wa] = "wa",
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[ocf_cache_mode_pt] = "pt",
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[ocf_cache_mode_wi] = "wi",
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[ocf_cache_mode_wo] = "wo",
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};
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ocf_cache_mode_t
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ocf_get_cache_mode(const char *cache_mode)
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{
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int i;
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for (i = 0; i < ocf_cache_mode_max; i++) {
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if (strcmp(cache_mode, cache_modes[i]) == 0) {
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return i;
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}
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}
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return ocf_cache_mode_none;
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}
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const char *
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ocf_get_cache_modename(ocf_cache_mode_t mode)
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{
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if (mode > ocf_cache_mode_none && mode < ocf_cache_mode_max) {
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return cache_modes[mode];
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} else {
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return NULL;
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}
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}
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int
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ocf_get_cache_line_size(ocf_cache_t cache)
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{
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return ocf_cache_get_line_size(cache) / KiB;
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}
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int
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vbdev_ocf_mngt_start(struct vbdev_ocf *vbdev, vbdev_ocf_mngt_fn *path,
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vbdev_ocf_mngt_callback cb, void *cb_arg)
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{
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if (vbdev->mngt_ctx.current_step) {
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return -EBUSY;
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}
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memset(&vbdev->mngt_ctx, 0, sizeof(vbdev->mngt_ctx));
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vbdev->mngt_ctx.current_step = path;
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vbdev->mngt_ctx.cb = cb;
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vbdev->mngt_ctx.cb_arg = cb_arg;
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(*vbdev->mngt_ctx.current_step)(vbdev);
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return 0;
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}
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void
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vbdev_ocf_mngt_stop(struct vbdev_ocf *vbdev, vbdev_ocf_mngt_fn *rollback_path, int status)
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{
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if (status) {
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vbdev->mngt_ctx.status = status;
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}
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if (vbdev->mngt_ctx.status && rollback_path) {
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vbdev->mngt_ctx.poller_fn = NULL;
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vbdev->mngt_ctx.current_step = rollback_path;
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(*vbdev->mngt_ctx.current_step)(vbdev);
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return;
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}
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if (vbdev->mngt_ctx.cb) {
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vbdev->mngt_ctx.cb(vbdev->mngt_ctx.status, vbdev, vbdev->mngt_ctx.cb_arg);
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}
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memset(&vbdev->mngt_ctx, 0, sizeof(vbdev->mngt_ctx));
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}
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void
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vbdev_ocf_mngt_continue(struct vbdev_ocf *vbdev, int status)
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{
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if (vbdev->mngt_ctx.current_step == NULL) {
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return;
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}
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assert((*vbdev->mngt_ctx.current_step) != NULL);
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vbdev->mngt_ctx.status = status;
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vbdev->mngt_ctx.current_step++;
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if (*vbdev->mngt_ctx.current_step) {
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(*vbdev->mngt_ctx.current_step)(vbdev);
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return;
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}
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vbdev_ocf_mngt_stop(vbdev, NULL, 0);
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}
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int
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vbdev_ocf_mngt_get_status(struct vbdev_ocf *vbdev)
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{
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return vbdev->mngt_ctx.status;
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}
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