8c591e2d4f
When raid bdev is created with superblock parameter then all data on this bdev should be shifted by some offset. Such space at the beginning of bdev will be used to store on-disk raid metadata. Signed-off-by: Krzysztof Smolinski <krzysztof.smolinski@intel.com> Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com> Change-Id: I2545a2b00a651ef5332ca1757da0110a63914a43
135 lines
3.4 KiB
C
135 lines
3.4 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
|
|
* Copyright (C) 2022 Intel Corporation.
|
|
* All rights reserved.
|
|
*/
|
|
|
|
#include "spdk_cunit.h"
|
|
#include "spdk/stdinc.h"
|
|
#include "bdev/raid/bdev_raid.h"
|
|
|
|
struct spdk_bdev_desc {
|
|
struct spdk_bdev *bdev;
|
|
};
|
|
|
|
struct raid_params {
|
|
uint8_t num_base_bdevs;
|
|
uint64_t base_bdev_blockcnt;
|
|
uint32_t base_bdev_blocklen;
|
|
uint32_t strip_size;
|
|
uint32_t md_len;
|
|
};
|
|
|
|
struct raid_params *g_params;
|
|
size_t g_params_count;
|
|
size_t g_params_size;
|
|
|
|
#define ARRAY_FOR_EACH(a, e) \
|
|
for (e = a; e < a + SPDK_COUNTOF(a); e++)
|
|
|
|
#define RAID_PARAMS_FOR_EACH(p) \
|
|
for (p = g_params; p < g_params + g_params_count; p++)
|
|
|
|
static int
|
|
raid_test_params_alloc(size_t count)
|
|
{
|
|
assert(g_params == NULL);
|
|
|
|
g_params_size = count;
|
|
g_params_count = 0;
|
|
g_params = calloc(count, sizeof(*g_params));
|
|
|
|
return g_params ? 0 : -ENOMEM;
|
|
}
|
|
|
|
static void
|
|
raid_test_params_free(void)
|
|
{
|
|
g_params_count = 0;
|
|
g_params_size = 0;
|
|
free(g_params);
|
|
}
|
|
|
|
static void
|
|
raid_test_params_add(struct raid_params *params)
|
|
{
|
|
assert(g_params_count < g_params_size);
|
|
|
|
memcpy(g_params + g_params_count, params, sizeof(*params));
|
|
g_params_count++;
|
|
}
|
|
|
|
static struct raid_bdev *
|
|
raid_test_create_raid_bdev(struct raid_params *params, struct raid_bdev_module *module)
|
|
{
|
|
struct raid_bdev *raid_bdev;
|
|
struct raid_base_bdev_info *base_info;
|
|
|
|
raid_bdev = calloc(1, sizeof(*raid_bdev));
|
|
SPDK_CU_ASSERT_FATAL(raid_bdev != NULL);
|
|
|
|
raid_bdev->module = module;
|
|
raid_bdev->level = module->level;
|
|
raid_bdev->num_base_bdevs = params->num_base_bdevs;
|
|
|
|
switch (raid_bdev->module->base_bdevs_constraint.type) {
|
|
case CONSTRAINT_MAX_BASE_BDEVS_REMOVED:
|
|
raid_bdev->min_base_bdevs_operational = raid_bdev->num_base_bdevs -
|
|
raid_bdev->module->base_bdevs_constraint.value;
|
|
break;
|
|
case CONSTRAINT_MIN_BASE_BDEVS_OPERATIONAL:
|
|
raid_bdev->min_base_bdevs_operational = raid_bdev->module->base_bdevs_constraint.value;
|
|
break;
|
|
case CONSTRAINT_UNSET:
|
|
raid_bdev->min_base_bdevs_operational = raid_bdev->num_base_bdevs;
|
|
break;
|
|
default:
|
|
CU_FAIL_FATAL("unsupported raid constraint type");
|
|
};
|
|
|
|
raid_bdev->superblock_enabled = false;
|
|
raid_bdev->base_bdev_info = calloc(raid_bdev->num_base_bdevs,
|
|
sizeof(struct raid_base_bdev_info));
|
|
SPDK_CU_ASSERT_FATAL(raid_bdev->base_bdev_info != NULL);
|
|
|
|
RAID_FOR_EACH_BASE_BDEV(raid_bdev, base_info) {
|
|
struct spdk_bdev *bdev;
|
|
struct spdk_bdev_desc *desc;
|
|
|
|
bdev = calloc(1, sizeof(*bdev));
|
|
SPDK_CU_ASSERT_FATAL(bdev != NULL);
|
|
bdev->blockcnt = params->base_bdev_blockcnt;
|
|
bdev->blocklen = params->base_bdev_blocklen;
|
|
|
|
desc = calloc(1, sizeof(*desc));
|
|
SPDK_CU_ASSERT_FATAL(desc != NULL);
|
|
desc->bdev = bdev;
|
|
|
|
base_info->bdev = bdev;
|
|
base_info->desc = desc;
|
|
base_info->data_offset = 0;
|
|
base_info->data_size = bdev->blockcnt;
|
|
}
|
|
|
|
raid_bdev->strip_size = params->strip_size;
|
|
raid_bdev->strip_size_kb = params->strip_size * params->base_bdev_blocklen / 1024;
|
|
raid_bdev->strip_size_shift = spdk_u32log2(raid_bdev->strip_size);
|
|
raid_bdev->blocklen_shift = spdk_u32log2(params->base_bdev_blocklen);
|
|
raid_bdev->bdev.blocklen = params->base_bdev_blocklen;
|
|
raid_bdev->bdev.md_len = params->md_len;
|
|
|
|
return raid_bdev;
|
|
}
|
|
|
|
static void
|
|
raid_test_delete_raid_bdev(struct raid_bdev *raid_bdev)
|
|
{
|
|
struct raid_base_bdev_info *base_info;
|
|
|
|
RAID_FOR_EACH_BASE_BDEV(raid_bdev, base_info) {
|
|
free(base_info->bdev);
|
|
free(base_info->desc);
|
|
}
|
|
free(raid_bdev->base_bdev_info);
|
|
free(raid_bdev);
|
|
}
|