github/ocf
4
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Drop support for submit_* ops in backend volumes

Browse Source 
Signed-off-by: Robert Baldyga <robert.baldyga@huawei.com>
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@huawei.com>
This commit is contained in:
Robert Baldyga
2023-10-13 15:49:33 +02:00
committed by Michal Mielewczyk
parent 39d566c280
commit 7fb6b62825
4 changed files with 4 additions and 319 deletions
Download Patch File Download Diff File Expand all files Collapse all files

77
example/simple/src/volume.c
View File

@@ -43,51 +43,6 @@ static void volume_close(ocf_volume_t volume)
free(myvolume->mem);
}
/*
* In submit_io() function we simulate read or write to backend storage device
* by doing memcpy() to or from previously allocated memory buffer.
*/
static void volume_submit_io(struct ocf_io *io)
{
struct myvolume_io *myvolume_io = ocf_io_get_priv(io);
struct volume_data *data;
struct myvolume *myvolume;
uint32_t offset = myvolume_io->offset;
data = ocf_io_get_data(io);
myvolume = ocf_volume_get_priv(ocf_io_get_volume(io));
if (io->dir == OCF_WRITE) {
memcpy(myvolume->mem + io->addr,
data->ptr + offset, io->bytes);
} else {
memcpy(data->ptr + offset,
myvolume->mem + io->addr, io->bytes);
}
printf("VOL: (name: %s), IO: (dir: %s, addr: %ld, bytes: %d)\n",
myvolume->name, io->dir == OCF_READ ? "read" : "write",
io->addr, io->bytes);
io->end(io, 0);
}
/*
* We don't need to implement submit_flush(). Just complete io with success.
*/
static void volume_submit_flush(struct ocf_io *io)
{
io->end(io, 0);
}
/*
* We don't need to implement submit_discard(). Just complete io with success.
*/
static void volume_submit_discard(struct ocf_io *io)
{
io->end(io, 0);
}
void volume_forward_io(ocf_volume_t volume, ocf_forward_token_t token,
int dir, uint64_t addr, uint64_t bytes, uint64_t offset)
{
@@ -138,30 +93,6 @@ static uint64_t volume_get_length(ocf_volume_t volume)
return VOL_SIZE;
}
/*
* In set_data() we just assing data and offset to io.
*/
static int myvolume_io_set_data(struct ocf_io *io, ctx_data_t *data,
uint32_t offset)
{
struct myvolume_io *myvolume_io = ocf_io_get_priv(io);
myvolume_io->data = data;
myvolume_io->offset = offset;
return 0;
}
/*
* In get_data() return data stored in io.
*/
static ctx_data_t *myvolume_io_get_data(struct ocf_io *io)
{
struct myvolume_io *myvolume_io = ocf_io_get_priv(io);
return myvolume_io->data;
}
/*
* This structure contains volume properties. It describes volume
* type, which can be later instantiated as backend storage for cache
@@ -169,7 +100,6 @@ static ctx_data_t *myvolume_io_get_data(struct ocf_io *io)
*/
const struct ocf_volume_properties volume_properties = {
.name = "Example volume",
.io_priv_size = sizeof(struct myvolume_io),
.volume_priv_size = sizeof(struct myvolume),
.caps = {
.atomic_writes = 0,
@@ -177,19 +107,12 @@ const struct ocf_volume_properties volume_properties = {
.ops = {
.open = volume_open,
.close = volume_close,
.submit_io = volume_submit_io,
.submit_flush = volume_submit_flush,
.submit_discard = volume_submit_discard,
.forward_io = volume_forward_io,
.forward_flush = volume_forward_flush,
.forward_discard = volume_forward_discard,
.get_max_io_size = volume_get_max_io_size,
.get_length = volume_get_length,
},
.io_ops = {
.set_data = myvolume_io_set_data,
.get_data = myvolume_io_get_data,
},
};
/*

6
example/simple/src/volume.h
View File

@@ -1,5 +1,6 @@
/*
* Copyright(c) 2019-2021 Intel Corporation
* Copyright(c) 2024 Huawei Technologies
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -11,11 +12,6 @@
#include "ctx.h"
#include "data.h"
struct myvolume_io {
struct volume_data *data;
uint32_t offset;
};
struct myvolume {
uint8_t *mem;
const char *name;