1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * RDMA Network Block Driver
5 * Copyright (c) 2014 - 2018 ProfitBricks GmbH. All rights reserved.
6 * Copyright (c) 2018 - 2019 1&1 IONOS Cloud GmbH. All rights reserved.
7 * Copyright (c) 2019 - 2020 1&1 IONOS SE. All rights reserved.
10 #define RNBD_SRV_DEV_H
13 #include "rnbd-proto.h"
16 struct block_device *bdev;
17 fmode_t blk_open_flags;
18 char name[BDEVNAME_SIZE];
22 * rnbd_dev_open() - Open a device
26 struct rnbd_dev *rnbd_dev_open(const char *path, fmode_t flags);
29 * rnbd_dev_close() - Close a device
31 void rnbd_dev_close(struct rnbd_dev *dev);
33 void rnbd_endio(void *priv, int error);
35 static inline int rnbd_dev_get_max_segs(const struct rnbd_dev *dev)
37 return queue_max_segments(bdev_get_queue(dev->bdev));
40 static inline int rnbd_dev_get_max_hw_sects(const struct rnbd_dev *dev)
42 return queue_max_hw_sectors(bdev_get_queue(dev->bdev));
45 static inline int rnbd_dev_get_secure_discard(const struct rnbd_dev *dev)
47 return blk_queue_secure_erase(bdev_get_queue(dev->bdev));
50 static inline int rnbd_dev_get_max_discard_sects(const struct rnbd_dev *dev)
52 return bdev_max_discard_sectors(dev->bdev);
55 static inline int rnbd_dev_get_discard_granularity(const struct rnbd_dev *dev)
57 return bdev_get_queue(dev->bdev)->limits.discard_granularity;
60 static inline int rnbd_dev_get_discard_alignment(const struct rnbd_dev *dev)
62 return bdev_get_queue(dev->bdev)->limits.discard_alignment;
65 #endif /* RNBD_SRV_DEV_H */