per Intel policy to include file commit date using git cmd below. The policy does not apply to non-Intel (C) notices. git log --follow -C90% --format=%ad --date default <file> | tail -1 and then pull just the 4 digit year from the result. Intel copyrights were not added to files where Intel either had no contribution ot the contribution lacked substance (ie license header updates, formatting changes, etc). Contribution date used "--follow -C95%" to get the most accurate date. Note that several files in this patch didn't end the license/(c) block with a blank comment line so these were added as the vast majority of files do have this last blank line. Simply there for consistency. Signed-off-by: paul luse <paul.e.luse@intel.com> Change-Id: Id5b7ce4f658fe87132f14139ead58d6e285c04d4 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15192 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Community-CI: Mellanox Build Bot
81 lines
2.0 KiB
C
81 lines
2.0 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
|
|
* Copyright (C) 2018 Intel Corporation.
|
|
* All rights reserved.
|
|
* Copyright (c) 2021 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
|
|
*/
|
|
|
|
#ifndef SPDK_VBDEV_COMPRESS_H
|
|
#define SPDK_VBDEV_COMPRESS_H
|
|
|
|
#include "spdk/stdinc.h"
|
|
|
|
#include "spdk/bdev.h"
|
|
|
|
#define LB_SIZE_4K 0x1000UL
|
|
#define LB_SIZE_512B 0x200UL
|
|
|
|
/**
|
|
* Get the first compression bdev.
|
|
*
|
|
* \return the first compression bdev.
|
|
*/
|
|
struct vbdev_compress *compress_bdev_first(void);
|
|
|
|
/**
|
|
* Get the next compression bdev.
|
|
*
|
|
* \param prev previous compression bdev.
|
|
* \return the next compression bdev.
|
|
*/
|
|
struct vbdev_compress *compress_bdev_next(struct vbdev_compress *prev);
|
|
|
|
/**
|
|
* Test to see if a compression bdev orphan exists.
|
|
*
|
|
* \param name The name of the compression bdev.
|
|
* \return true if found, false if not.
|
|
*/
|
|
bool compress_has_orphan(const char *name);
|
|
|
|
/**
|
|
* Get the name of a compression bdev.
|
|
*
|
|
* \param comp_bdev The compression bdev.
|
|
* \return the name of the compression bdev.
|
|
*/
|
|
const char *compress_get_name(const struct vbdev_compress *comp_bdev);
|
|
|
|
enum compress_pmd {
|
|
COMPRESS_PMD_AUTO = 0,
|
|
COMPRESS_PMD_QAT_ONLY,
|
|
COMPRESS_PMD_ISAL_ONLY,
|
|
COMPRESS_PMD_MLX5_PCI_ONLY,
|
|
COMPRESS_PMD_MAX
|
|
};
|
|
|
|
int compress_set_pmd(enum compress_pmd *opts);
|
|
|
|
typedef void (*spdk_delete_compress_complete)(void *cb_arg, int bdeverrno);
|
|
|
|
/**
|
|
* Create new compression bdev.
|
|
*
|
|
* \param bdev_name Bdev on which compression bdev will be created.
|
|
* \param pm_path Path to persistent memory.
|
|
* \param lb_size Logical block size for the compressed volume in bytes. Must be 4K or 512.
|
|
* \return 0 on success, other on failure.
|
|
*/
|
|
int create_compress_bdev(const char *bdev_name, const char *pm_path, uint32_t lb_size);
|
|
|
|
/**
|
|
* Delete compress bdev.
|
|
*
|
|
* \param bdev_name Bdev on which compression bdev will be deleted.
|
|
* \param cb_fn Function to call after deletion.
|
|
* \param cb_arg Argument to pass to cb_fn.
|
|
*/
|
|
void bdev_compress_delete(const char *bdev_name, spdk_delete_compress_complete cb_fn,
|
|
void *cb_arg);
|
|
|
|
#endif /* SPDK_VBDEV_COMPRESS_H */
|