Lines Matching refs:block

6 use the SPDK bdev library to access block devices.
10 A block device is a storage device that supports reading and writing data in
15 The block device layer consists of a single generic library in `lib/bdev`,
17 various types of block devices. The public header file for the generic library
19 of block device. This guide will cover how to interact with bdevs using that
23 common abstraction for all block devices:
35 generic block device. struct spdk_bdev_desc, heretofore called a *descriptor*,
36 represents a handle to a given block device. Descriptors are used to establish
37 and track permissions to use the underlying block device, much like a file
38 descriptor on UNIX systems. Requests to the block device are asynchronous and
63 All block devices have a simple string name. At any time, a pointer to the
68 Some block devices may also be given aliases, which are also string names.
70 name to look up the block device.
74 In order to send I/O requests to a block device, it must first be opened by
84 When a block device is opened, a callback and context must be provided that
117 the block device. This memory must be allocated through spdk_dma_malloc() or
120 be *directly transferred to the block device* using
125 block or stall the thread for any reason. However, the I/O submission
146 importantly, regardless of device type, *all I/O outstanding to the block