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| /Documentation/admin-guide/device-mapper/ |
| D | kcopyd.rst | 5 Kcopyd provides the ability to copy a range of sectors from one block-device
10 to set aside for their copy jobs. This is done with a call to
16 To start a copy job, the user must set up io_region structures to describe
17 the source and destinations of the copy. Each io_region indicates a
19 of the copy is given as one io_region structure, and the destinations of the
20 copy are given as an array of io_region structures::
28 To start the copy, the user calls kcopyd_copy(), passing in the client
30 completion callback routine, and a pointer to some context data for the copy::
39 When the copy completes, kcopyd will call the user's completion routine,
41 write error occurred during the copy.
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| D | snapshot.rst | 16 changed and uses a separate copy-on-write (COW) block device for
66 copy-out to the snapshot exception store because the snapshot-origin
166 LV VG Attr LSize Origin Snap% Move Log Copy% Convert
178 LV VG Attr LSize Origin Snap% Move Log Copy% Convert
195 LV VG Attr LSize Origin Snap% Move Log Copy% Convert
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| /Documentation/staging/ |
| D | lzo.rst | 27 - a length (number of bytes to copy from dictionary)
28 - the number of literals to copy, which is retained in variable "state"
55 ranges, resulting in multiple copy instructions using different encodings.
59 After any instruction except the large literal copy, 0, 1, 2 or 3 literals
68 End of stream is declared when a block copy of distance 0 is seen. Only one
101 noting that code 16 will represent a block copy from the
111 18..21 : copy 0..3 literals
112 state = (byte - 17) = 0..3 [ copy <state> literals ]
115 22..255 : copy literal string
117 state = 4 [ don't copy extra literals ]
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| /Documentation/devicetree/bindings/soc/intel/ |
| D | intel,hps-copy-engine.yaml | 5 $id: http://devicetree.org/schemas/soc/intel/intel,hps-copy-engine.yaml#
8 title: Intel HPS Copy Engine
14 The Intel Hard Processor System (HPS) Copy Engine is an IP block used to copy
21 const: intel,hps-copy-engine
47 compatible = "intel,hps-copy-engine";
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| /Documentation/input/devices/ |
| D | bcm5974.rst | 7 :Copyright: |copy| 2008-2009 Henrik Rydberg <rydberg@euromail.se>
12 :Copyright: |copy| 2008 Scott Shawcroft (scott.shawcroft@gmail.com)
16 :Copyright: |copy| 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
17 :Copyright: |copy| 2005 Johannes Berg (johannes@sipsolutions.net)
18 :Copyright: |copy| 2005 Stelian Pop (stelian@popies.net)
19 :Copyright: |copy| 2005 Frank Arnold (frank@scirocco-5v-turbo.de)
20 :Copyright: |copy| 2005 Peter Osterlund (petero2@telia.com)
21 :Copyright: |copy| 2005 Michael Hanselmann (linux-kernel@hansmi.ch)
22 :Copyright: |copy| 2006 Nicolas Boichat (nicolas@boichat.ch)
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| /Documentation/devicetree/bindings/dma/ti/ |
| D | k3-bcdma.yaml | 15 The Block Copy DMA (BCDMA) is intended to perform similar functions as the TR
17 BCDMA includes block copy channels and Split channels.
19 Block copy channels mainly used for memory to memory transfers, but with
20 optional triggers a block copy channel can service peripherals by accessing
51 1 - block copy channel using global trigger 1
52 2 - block copy channel using global trigger 2
53 3 - block copy channel using local trigger
64 if cell 1 is 1 or 2 (block copy channel using global trigger):
70 if cell 1 is 3 (block copy channel using local trigger):
89 Array of BCDMA block-copy channel resource subtypes for resource
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| /Documentation/networking/ |
| D | msg_zerocopy.rst | 9 The MSG_ZEROCOPY flag enables copy avoidance for socket send calls.
20 underlying copy avoidance mechanism to common socket send calls.
22 Copy avoidance is not a free lunch. As implemented, with page pinning,
23 it replaces per byte copy cost with page accounting and completion
60 Passing the MSG_ZEROCOPY flag is the most obvious step to enable copy
68 copy avoidance mode for legacy processes that accidentally already pass
91 Mixing copy avoidance and copying
94 Many workloads have a mixture of large and small buffers. Because copy
211 Passing flag MSG_ZEROCOPY is a hint to the kernel to apply copy
213 notification. It is not a guarantee that the copy is elided.
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| D | af_xdp.rst | 87 code to provide better performance, but there is still a copy of the
249 When you bind to a socket, the kernel will first try to use zero-copy
250 copy. If zero-copy is not supported, it will fall back on using copy
254 socket into copy mode. If it cannot use copy mode, the bind call will
256 socket into zero-copy mode or fail.
463 XDP_OPTIONS_ZEROCOPY which tells you if zero-copy is on or not.
469 and transmit packets consisting of multiple buffers both in copy and
470 zero-copy mode. For example, a packet can consist of two
511 * For copy mode, the maximum supported number of frames in a packet is
518 * For zero-copy mode, the limit is up to what the NIC HW
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| /Documentation/PCI/endpoint/ |
| D | pci-test-function.rst | 49 Bit 5 copy command (copy data from one RC buffer to another RC buffer)
63 Bit 4 copy success
64 Bit 5 copy fail
73 COPY/READ command.
78 the COPY/WRITE command.
83 for the READ/WRITE/COPY and raise IRQ (Legacy/MSI) commands.
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| D | pci-test-howto.rst | 229 Copy Tests
231 COPY ( 1 bytes): OKAY
232 COPY ( 1024 bytes): OKAY
233 COPY ( 1025 bytes): OKAY
234 COPY (1024000 bytes): OKAY
235 COPY (1024001 bytes): OKAY
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| /Documentation/userspace-api/media/ |
| D | fdl-appendix.rst | 17 effective freedom to copy and redistribute it, with or without modifying
90 A "Transparent" copy of the :ref:`Document <fdl-document>` means a
91 machine-readable copy, represented in a format whose specification is
97 for input to text formatters. A copy made in an otherwise Transparent
99 subsequent modification by readers is not Transparent. A copy that is
127 You may copy and distribute the :ref:`Document <fdl-document>` in any
168 copy along with each Opaque copy, or state in or with each Opaque copy a
170 Transparent copy of the Document, free of added material, which the
175 Transparent copy will remain thus accessible at the stated location
177 copy (directly or through your agents or retailers) of that edition to
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| D | index.rst | 42 **Copyright** |copy| 2009-2020 : LinuxTV Developers
46 Permission is granted to copy, distribute and/or modify this document
49 Invariant Sections. A copy of the license is included in the chapter
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| /Documentation/networking/device_drivers/ethernet/mellanox/mlx5/ |
| D | index.rst | 7 :Copyright: |copy| 2019, Mellanox Technologies LTD.
8 :Copyright: |copy| 2020-2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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| /Documentation/admin-guide/media/ |
| D | opera-firmware.rst | 9 you need to copy the files:
29 Copy them into /lib/firmware/ .
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| /Documentation/filesystems/ |
| D | ecryptfs.rst | 18 maintain a backup copy of any data you write into eCryptfs.
36 eCryptfs, you should copy the files to an unencrypted location and
37 then copy the files back into the new eCryptfs mount to migrate the
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| /Documentation/userspace-api/media/mediactl/ |
| D | media-controller.rst | 37 **Copyright** |copy| 2010 : Laurent Pinchart
39 **Copyright** |copy| 2015-2016 : Mauro Carvalho Chehab
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| /Documentation/block/ |
| D | ublk.rst | 274 issued to ublk server without data copy. Then, IO backend of ublk server
277 data copy is done from request pages to this backend's buffer. Finally,
290 - data copy between ublk server IO buffer and ublk block IO request
292 The driver needs to copy the block IO request pages into the server buffer
297 ``UBLK_IO_COMMIT_AND_FETCH_REQ`` to the server, ublkdrv needs to copy
303 Zero copy
306 Zero copy is a generic requirement for nbd, fuse or similar drivers. A
310 big requests (IO size >= 256 KB) may benefit a lot from zero copy.
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| /Documentation/arch/powerpc/ |
| D | vas-api.rst | 22 Block (CRB) and these CRBs must be submitted to the NX using COPY/PASTE
47 using copy/paste instructions and pasting the CRBs to the virtual address
74 Note that the copy and paste operations go directly to the hardware and
75 do not go through this device. Refer COPY/PASTE document for more
168 that the application can use to copy/paste its CRB to the hardware engines.
198 Copy/Paste operations
201 Applications should use the copy and paste instructions to send CRB to NX.
202 Refer section 4.4 in PowerISA for Copy/Paste instructions:
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| D | kaslr-booke32.rst | 14 map or copy kernel to a proper place and relocate. Freescale Book-E
17 region, so we chose to copy the kernel to a proper place and restart to
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| /Documentation/admin-guide/ |
| D | spkguide.txt | 13 Permission is granted to copy, distribute and/or modify this document
17 copy of the license is included in the section entitled "GNU Free
685 You can obtain a copy of Speech Dispatcher from free(b)soft at
689 in order to get a copy of either Flite or Festival. Your Linux
725 The easiest way to get the software working is to copy the entire dec_pc
731 You will need to copy the dtload command from the dec_pc directory to a
824 It makes a copy of the text in a special buffer for later pasting.
925 included with the Speakup source, or you can cut and paste the copy in
937 You can edit your copy of the speakupmap.map file and swap the command
944 After you edit your copy of the speakupmap.map file, save it under a new
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| /Documentation/RCU/ |
| D | rcu.rst | 6 The basic idea behind RCU (read-copy update) is to split destructive
70 "RCU" stands for "read-copy update".
72 for "read-copy update" to find it.
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| /Documentation/arch/x86/ |
| D | shstk.rst | 18 function return, the processor pops the shadow stack copy and compares it
19 to the normal stack copy. If the two differ, the processor raises a
83 Copy the currently enabled features to the address passed in addr. The
94 -EFAULT if could not copy information back to userspace
168 is handled by page copy/re-use.
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| /Documentation/ABI/testing/ |
| D | sysfs-firmware-log | 6 read-only copy of the firmware's log if one is
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| D | sysfs-devices-platform-stratix10-rsu | 145 (RO) Decision firmware copy 0 version information.
152 (RO) Decision firmware copy 1 version information.
159 (RO) Decision firmware copy 2 version information.
166 (RO) Decision firmware copy 3 version information.
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| /Documentation/iio/ |
| D | iio_dmabuf_api.rst | 20 zero-copy fashion, for instance between IIO and the USB stack.
24 read() interface is that it avoids an extra copy of the data between the
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