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Translate OCF-error-codes in IO path

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Signed-off-by: Michal Rakowski <michal.rakowski@intel.com>
This commit is contained in:
Michal Rakowski
2019-05-28 15:20:09 +02:00
parent b63cf8268d
commit f9c0c929c1
4 changed files with 105 additions and 73 deletions
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81
modules/cas_cache/utils/cas_err.h Normal file
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/*
* Copyright(c) 2012-2019 Intel Corporation
* SPDX-License-Identifier: BSD-3-Clause-Clear
*/
#include "cas_cache.h"
struct {
int cas_error;
int std_error;
} static cas_error_code_map[] = {
/* OCF error mappings*/
{ OCF_ERR_INVAL, EINVAL },
{ OCF_ERR_INVAL_VOLUME_TYPE, EINVAL },
{ OCF_ERR_INTR, EINTR },
{ OCF_ERR_UNKNOWN, EINVAL },
{ OCF_ERR_TOO_MANY_CACHES, ENOSPC },
{ OCF_ERR_NO_MEM, ENOMEM },
{ OCF_ERR_NO_FREE_RAM, ENOMEM },
{ OCF_ERR_START_CACHE_FAIL, EFAULT },
{ OCF_ERR_CACHE_NOT_EXIST, ENODEV },
{ OCF_ERR_CACHE_EXIST, EEXIST },
{ OCF_ERR_TOO_MANY_CORES, ENOSPC },
{ OCF_ERR_CORE_NOT_AVAIL, ENAVAIL },
{ OCF_ERR_NOT_OPEN_EXC, EBUSY },
{ OCF_ERR_CACHE_NOT_AVAIL, ENAVAIL },
{ OCF_ERR_IO_CLASS_NOT_EXIST, ENODEV },
{ OCF_ERR_IO, EIO },
{ OCF_ERR_WRITE_CACHE, EIO },
{ OCF_ERR_WRITE_CORE, EIO },
{ OCF_ERR_DIRTY_SHUTDOWN, EFAULT },
{ OCF_ERR_DIRTY_EXISTS, EFAULT },
{ OCF_ERR_FLUSHING_INTERRUPTED, EINTR },
{ OCF_ERR_AGAIN, EAGAIN },
{ OCF_ERR_NOT_SUPP, ENOTSUP },
{ OCF_ERR_METADATA_VER, EBADF },
{ OCF_ERR_NO_METADATA, ENODATA },
/* CAS kernel error mappings*/
{ KCAS_ERR_ROOT, EPERM },
{ KCAS_ERR_SYSTEM, EINVAL },
{ KCAS_ERR_BAD_RANGE, ERANGE },
{ KCAS_ERR_DEV_SPACE, ENOSPC },
{ KCAS_ERR_INV_IOCTL, EINVAL },
{ KCAS_ERR_DEV_PENDING, EBUSY },
{ KCAS_ERR_DIRTY_EXISTS_NVME, EFAULT },
{ KCAS_ERR_FILE_EXISTS, EEXIST },
{ KCAS_ERR_IN_UPGRADE, EFAULT },
{ KCAS_ERR_UNALIGNED, EINVAL },
{ KCAS_ERR_NO_STORED_CONF, EINTR },
{ KCAS_ERR_ROLLBACK, EFAULT },
{ KCAS_ERR_NOT_NVME, ENODEV },
{ KCAS_ERR_FORMAT_FAILED, EFAULT },
{ KCAS_ERR_NVME_BAD_FORMAT, EINVAL },
{ KCAS_ERR_CONTAINS_PART, EINVAL },
{ KCAS_ERR_A_PART, EINVAL },
{ KCAS_ERR_REMOVED_DIRTY, EIO },
{ KCAS_ERR_STOPPED_DIRTY, EIO },
};
/*******************************************/
/* Helper which change cas-specific error */
/* codes to kernel generic error codes */
/*******************************************/
static inline int map_cas_err_to_generic(int cas_error_code)
{
int i;
if (cas_error_code == 0)
return 0; /* No Error */
cas_error_code = abs(cas_error_code);
for (i = 0; i < ARRAY_SIZE(cas_error_code_map); i++) {
if (cas_error_code_map[i].cas_error == cas_error_code)
return -cas_error_code_map[i].std_error;
}
return -cas_error_code;
}