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Kernel 6.13: Add setting queue limits of exported object

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Signed-off-by: Robert Baldyga <robert.baldyga@huawei.com>
Signed-off-by: Rafal Stefanowski <rafal.stefanowski@huawei.com>
This commit is contained in:
Rafal Stefanowski
2025-02-05 16:40:34 +01:00
parent dbaeb21cb3
commit 7ee78ac51e
5 changed files with 93 additions and 12 deletions
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65
modules/cas_cache/volume/vol_block_dev_top.c
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@@ -1,6 +1,6 @@
/*
* Copyright(c) 2012-2022 Intel Corporation
* Copyright(c) 2024 Huawei Technologies Co., Ltd.
* Copyright(c) 2024-2025 Huawei Technologies Co., Ltd.
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -135,6 +135,36 @@ static int blkdev_core_set_geometry(struct cas_disk *dsk, void *private)
return 0;
}
static int blkdev_core_set_queue_limits(struct cas_disk *dsk, void *private,
cas_queue_limits_t *lim)
{
ocf_core_t core = private;
ocf_cache_t cache = ocf_core_get_cache(core);
ocf_volume_t core_vol = ocf_core_get_volume(core);
struct bd_object *bd_core_vol;
struct request_queue *core_q;
bool flush, fua;
struct cache_priv *cache_priv = ocf_cache_get_priv(cache);
bd_core_vol = bd_object(core_vol);
core_q = cas_disk_get_queue(bd_core_vol->dsk);
flush = (CAS_CHECK_QUEUE_FLUSH(core_q) ||
cache_priv->device_properties.flush);
fua = (CAS_CHECK_QUEUE_FUA(core_q) ||
cache_priv->device_properties.fua);
memset(lim, 0, sizeof(cas_queue_limits_t));
if (flush)
CAS_SET_QUEUE_LIMIT(lim, CAS_BLK_FEAT_WRITE_CACHE);
if (fua)
CAS_SET_QUEUE_LIMIT(lim, CAS_BLK_FEAT_FUA);
return 0;
}
struct defer_bio_context {
struct work_struct io_work;
void (*cb)(struct bd_object *bvol, struct bio *bio);
@@ -429,6 +459,7 @@ static void blkdev_core_submit_bio(struct cas_disk *dsk,
static struct cas_exp_obj_ops kcas_core_exp_obj_ops = {
.set_geometry = blkdev_core_set_geometry,
.set_queue_limits = blkdev_core_set_queue_limits,
.submit_bio = blkdev_core_submit_bio,
};
@@ -471,6 +502,37 @@ static int blkdev_cache_set_geometry(struct cas_disk *dsk, void *private)
return 0;
}
static int blkdev_cache_set_queue_limits(struct cas_disk *dsk, void *private,
cas_queue_limits_t *lim)
{
ocf_cache_t cache;
ocf_volume_t volume;
struct bd_object *bvol;
struct request_queue *cache_q;
struct block_device *bd;
BUG_ON(!private);
cache = private;
volume = ocf_cache_get_volume(cache);
bvol = bd_object(volume);
bd = cas_disk_get_blkdev(bvol->dsk);
BUG_ON(!bd);
cache_q = bd->bd_disk->queue;
memset(lim, 0, sizeof(cas_queue_limits_t));
if (CAS_CHECK_QUEUE_FLUSH(cache_q))
CAS_SET_QUEUE_LIMIT(lim, CAS_BLK_FEAT_WRITE_CACHE);
if (CAS_CHECK_QUEUE_FUA(cache_q))
CAS_SET_QUEUE_LIMIT(lim, CAS_BLK_FEAT_FUA);
return 0;
}
static void blkdev_cache_submit_bio(struct cas_disk *dsk,
struct bio *bio, void *private)
{
@@ -486,6 +548,7 @@ static void blkdev_cache_submit_bio(struct cas_disk *dsk,
static struct cas_exp_obj_ops kcas_cache_exp_obj_ops = {
.set_geometry = blkdev_cache_set_geometry,
.set_queue_limits = blkdev_cache_set_queue_limits,
.submit_bio = blkdev_cache_submit_bio,
};