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/linux-6.14.4/net/sched/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
16 If you say N here, you will get the standard packet scheduler, which
25 To administer these schedulers, you'll need the user-level utilities
38 to read status information about packet schedulers from the file
52 packet scheduling algorithm. See
54 in-depth articles.
66 (HFSC) packet scheduling algorithm.
74 Say Y here if you want to use an n-band priority queue packet
81 tristate "Hardware Multiqueue-aware Multi Band Queuing (MULTIQ)"
83 Say Y here if you want to use an n-band queue packet scheduler
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/linux-6.14.4/net/ipv6/netfilter/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
16 ip6tables is a legacy packet classifier.
18 (iptables-nft).
44 tristate "IPv6 nf_tables packet duplication support"
48 This module enables IPv6 packet duplication support for nf_tables.
62 tristate "Netfilter IPv6 packet duplication to alternate destination"
66 packet to be rerouted to another destination.
69 tristate "IPv6 packet rejection"
73 tristate "IPv6 packet logging"
77 This is a backwards-compat option for the user's convenience
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/linux-6.14.4/Documentation/networking/
Dscaling.rst1 .. SPDX-License-Identifier: GPL-2.0
13 multi-processor systems.
17 - RSS: Receive Side Scaling
18 - RPS: Receive Packet Steering
19 - RFS: Receive Flow Steering
20 - Accelerated Receive Flow Steering
21 - XPS: Transmit Packet Steering
28 (multi-queue). On reception, a NIC can send different packets to different
30 applying a filter to each packet that assigns it to one of a small number
33 generally known as “Receive-side Scaling” (RSS). The goal of RSS and
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Dtls-offload.rst1 .. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
13 For details regarding the user-facing interface refer to the TLS
18 * Software crypto mode (``TLS_SW``) - CPU handles the cryptography.
24 * Packet-based NIC offload mode (``TLS_HW``) - the NIC handles crypto
25 on a packet by packet basis, provided the packets arrive in order.
28 (``ethtool`` flags ``tls-hw-tx-offload`` and ``tls-hw-rx-offload``).
29 * Full TCP NIC offload mode (``TLS_HW_RECORD``) - mode of operation where
33 abilities or QoS and packet scheduling (``ethtool`` flag ``tls-hw-record``).
35 The operation mode is selected automatically based on device configuration,
36 offload opt-in or opt-out on per-connection basis is not currently supported.
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Dgtp.rst1 .. SPDX-License-Identifier: GPL-2.0
11 In 'drivers/net/gtp.c' you are finding a kernel-level implementation
18 tunneling User-IP payload between a mobile station (phone, modem)
19 and the interconnection between an external packet data network (such
26 intermediate nodes just transport the encapsulated packet.
29 technology-dependent protocol stack for transmitting the user IP
35 is translated into GTP *without breaking the end-to-end tunnel*. So
38 At some point the GTP packet ends up on the so-called GGSN (GSM/UMTS)
39 or P-GW (LTE), which terminates the tunnel, decapsulates the packet
40 and forwards it onto an external packet data network. This can be
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Drds.rst1 .. SPDX-License-Identifier: GPL-2.0
14 http://oss.oracle.com/pipermail/rds-devel/2007-November/000228.html
22 cluster - so in a cluster with N processes you need N sockets, in contrast
23 to N*N if you use a connection-oriented socket transport like TCP.
25 RDS is not Infiniband-specific; it was designed to support different
29 The high-level semantics of RDS from the application's point of view are
39 transport has to be IP-based. In fact, RDS over IB uses a
59 a active-active HA scenario), but only as long as the address
72 to create RDS sockets. SOL_RDS is the socket-level to be used
87 This is a soft limit rather than a hard limit - RDS will
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Dopenvswitch.rst1 .. SPDX-License-Identifier: GPL-2.0
8 flow-level packet processing on selected network devices. It can be
10 VLAN processing, network access control, flow-based network control,
16 table" that userspace populates with "flows" that map from keys based
17 on packet headers and metadata to sets of actions. The most common
18 action forwards the packet to another vport; other actions are also
21 When a packet arrives on a vport, the kernel module processes it by
24 no match, it queues the packet to userspace for processing (as part of
26 packets of the same type entirely in-kernel).
30 ----------------------
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/linux-6.14.4/net/netfilter/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
71 and is also scheduled to replace the old syslog-based ipt_LOG
93 Address Translation. It can also be used to enhance packet
99 tristate "Syslog packet logging"
102 This option enable support for packet logging via syslog.
107 If both are enabled the backend to use can be configured at run-time
108 by means of per-address-family sysctl tunables.
182 This allows you to store the flow start-time and to obtain
183 the flow-stop time (once it has been destroyed) via Connection
191 This option enables support for assigning user-defined flag bits
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/linux-6.14.4/net/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
14 when running on a stand-alone machine that isn't connected to any
20 contained in the package net-tools, the location and version number
24 recommended to read the NET-HOWTO, available from
42 achieve this, you need to set skb_shinfo(skb)->frag_list to the
47 compat-independent messages instead!
80 source "net/packet/Kconfig"
106 to the KUnit documentation in Documentation/dev-tools/kunit/.
115 other computer. You will get the so-called loopback device which
126 <file:Documentation/networking/ip-sysctl.rst>.
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/linux-6.14.4/net/dccp/ccids/lib/
Dpacket_history.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Packet RX/TX history data structures and routines for TFRC-based protocols.
6 * Copyright (c) 2005-6 The University of Waikato, Hamilton, New Zealand.
10 * or e-mail Ian McDonald - [email protected]
14 * Copyright (c) 2003 Nils-Erik Mattsson, Joacim Haggmark, Magnus Erixzon
31 * tfrc_tx_hist_entry - Simple singly-linked TX history list
34 * @stamp: send time of packet with sequence number @seqno
45 while (head != NULL && head->seqno != seqno) in tfrc_tx_hist_find_entry()
46 head = head->next; in tfrc_tx_hist_find_entry()
53 /* Subtraction a-b modulo-16, respects circular wrap-around */
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/linux-6.14.4/net/batman-adv/
Dtvlv.c1 // SPDX-License-Identifier: GPL-2.0
34 * batadv_tvlv_handler_release() - release tvlv handler from lists and queue for
47 * batadv_tvlv_handler_put() - decrement the tvlv container refcounter and
56 kref_put(&tvlv_handler->refcount, batadv_tvlv_handler_release); in batadv_tvlv_handler_put()
60 * batadv_tvlv_handler_get() - retrieve tvlv handler from the tvlv handler list
61 * based on the provided type and version (both need to match)
75 &bat_priv->tvlv.handler_list, list) { in batadv_tvlv_handler_get()
76 if (tvlv_handler_tmp->type != type) in batadv_tvlv_handler_get()
79 if (tvlv_handler_tmp->version != version) in batadv_tvlv_handler_get()
82 if (!kref_get_unless_zero(&tvlv_handler_tmp->refcount)) in batadv_tvlv_handler_get()
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/linux-6.14.4/include/sound/
Dump.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Universal MIDI Packet (UMP) Support
17 int group; /* group index (0-based) */
145 /* MIDI 2.0 SysEx / Data Status; same values for both 7-bit and 8-bit SysEx */
212 /* get the message type (4bit) from a UMP packet (header) */
218 /* get the group number (0-based, 4bit) from a UMP packet (header) */
224 /* get the MIDI status code (4bit) from a UMP packet (header) */
230 /* get the MIDI channel number (0-based, 4bit) from a UMP packet (header) */
236 /* get the MIDI status + channel combo byte (8bit) from a UMP packet (header) */
242 /* compose a UMP packet (header) from type, group and status values */
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/linux-6.14.4/net/sctp/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
21 connectionless packet network such as IP. It offers the following
24 -- acknowledged error-free non-duplicated transfer of user data,
25 -- data fragmentation to conform to discovered path MTU size,
26 -- sequenced delivery of user messages within multiple streams,
27 with an option for order-of-arrival delivery of individual user
29 -- optional bundling of multiple user messages into a single SCTP
30 packet, and
31 -- network-level fault tolerance through supporting of multi-
62 Enable optional MD5 hmac based SCTP cookie generation
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/linux-6.14.4/net/ipv4/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
40 so-called IP spoofing, however it can pose problems if you use
42 than packets from that host to you) or if you operate a non-routing
52 <file:Documentation/networking/ip-sysctl.rst>.
68 Normally, a router decides what to do with a received packet based
69 solely on the packet's final destination address. If you say Y here,
70 the Linux router will also be able to take the packet's source
71 address into account. Furthermore, the TOS (Type-Of-Service) field
72 of the packet can be used for routing decisions as well.
85 a deterministic manner for a given packet. If you say Y here
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/linux-6.14.4/Documentation/networking/device_drivers/ethernet/intel/
Di40e.rst1 .. SPDX-License-Identifier: GPL-2.0+
8 Copyright(c) 1999-2018 Intel Corporation.
13 - Overview
14 - Identifying Your Adapter
15 - Intel(R) Ethernet Flow Director
16 - Additional Configurations
17 - Known Issues
18 - Support
32 The driver is compatible with devices based on the following:
47 ----------------------
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Dice.rst1 .. SPDX-License-Identifier: GPL-2.0+
8 Copyright(c) 2018-2021 Intel Corporation.
13 - Overview
14 - Identifying Your Adapter
15 - Important Notes
16 - Additional Features & Configurations
17 - Performance Optimization
28 This driver supports XDP (Express Data Path) and AF_XDP zero-copy. Note that
42 Packet drops may occur under receive stress
43 -------------------------------------------
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/linux-6.14.4/drivers/net/ethernet/intel/igbvf/
Dvf.h1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright(c) 2009 - 2018 Intel Corporation. */
31 * These entries are also used for MAC-based filtering.
35 /* Receive Descriptor - Advanced */
38 __le64 pkt_addr; /* Packet buffer address */
46 __le16 pkt_info; /* RSS/Packet type */
55 __le16 csum; /* Packet Checksum */
61 __le16 length; /* Packet length */
70 /* Transmit Descriptor - Advanced */
87 #define E1000_ADVTXD_DCMD_EOP 0x01000000 /* End of Packet */
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/linux-6.14.4/drivers/net/wireless/ath/ath12k/
Drx_desc.h1 /* SPDX-License-Identifier: BSD-3-Clause-Clear */
3 * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
4 * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
224 * Indication to Rx OLE to enable REO destination routing based
255 * If set, WDS learning detection based on SA search and notification
257 * field in address search failure cache-only entry should
261 * If set, intra-BSS routing detection is enabled
268 * buffers shall be disabled based on an RXDMA configuration,
278 * host SW/accelerator subsystem that also handles packet
279 * buffer management for WiFi-to-PPE routing.
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/linux-6.14.4/drivers/input/mouse/
Dtouchkit_ps2.c1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* ----------------------------------------------------------------------------
3 * touchkit_ps2.c -- Driver for eGalax TouchKit PS/2 Touchscreens
9 * Based upon touchkitusb.c
36 #define TOUCHKIT_GET_TOUCHED(packet) (((packet)[0]) & 0x01) argument
37 #define TOUCHKIT_GET_X(packet) (((packet)[1] << 7) | (packet)[2]) argument
38 #define TOUCHKIT_GET_Y(packet) (((packet)[3] << 7) | (packet)[4]) argument
42 unsigned char *packet = psmouse->packet; in touchkit_ps2_process_byte() local
43 struct input_dev *dev = psmouse->dev; in touchkit_ps2_process_byte()
45 if (psmouse->pktcnt != 5) in touchkit_ps2_process_byte()
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/linux-6.14.4/arch/mips/include/asm/octeon/
Dcvmx-pko.h7 * Copyright (c) 2003-2008 Cavium Networks
14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
30 * Interface to the hardware Packet Output unit.
37 * memory based locking instead. This locking has the advantage
38 * of not affecting the tag state but doesn't preserve packet
44 * - PKO indexes are no longer stored in the FAU. A large
48 * - The PKO <b>use_locking</b> parameter can now have a global
52 * - PKO 3 word commands are now supported. Use
60 #include <asm/octeon/cvmx-fpa.h>
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/linux-6.14.4/Documentation/sound/designs/
Dmidi-2.0.rst12 - Support of Universal MIDI Packet (UMP)
13 - Support of MIDI 2.0 protocol messages
14 - Transparent conversions between UMP and legacy MIDI 1.0 byte stream
15 - MIDI-CI for property and profile configurations
19 aligned, and each message can be put in a single packet. UMP can send
26 MIDI-CI is a high-level protocol that can talk with the MIDI device
31 the encoding/decoding of MIDI protocols on UMP, while MIDI-CI is
32 supported in user-space over the standard SysEx.
65 When a device supports MIDI 2.0, the USB-audio driver probes and uses
69 `midi2_enable=0` option to snd-usb-audio driver module, too.
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/linux-6.14.4/Documentation/netlabel/
Dlsm_interface.rst14 use of a common code base for several different packet labeling protocols.
21 Since NetLabel supports multiple different packet labeling protocols and LSMs
22 it uses the concept of security attributes to refer to the packet's security
26 low-level packet label depending on the NetLabel build time and run time
37 level functions are translated into low level protocol operations based on how
43 Depending on the exact configuration, translation between the network packet
47 LSM has received a packet, used NetLabel to decode its security attributes,
50 identifier with the network packet's label. This means that in the future
51 when a incoming packet matches a cached value not only are the internal
/linux-6.14.4/Documentation/networking/devlink/
Ddevlink-dpipe.rst1 .. SPDX-License-Identifier: GPL-2.0
12 ``devlink-dpipe`` provides a standardized way to provide visibility into the
34 Level Path Compression trie (LPC-trie) in hardware.
36 In many situations trying to analyze systems failure solely based on the
45 The ``devlink-dpipe`` interface closes this gap. The hardware's pipeline is
50 configuration, but the ``devlink-dpipe`` interface uses it for visibility
52 ``devlink-dpipe`` should change according to the changes done by the
73 A ``header`` describes packet formats and provides names for fields within
74 the packet. A ``table`` describes hardware blocks. An ``entry`` describes
84 ``devlink-dpipe`` generally is not intended for configuration. The exception
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/linux-6.14.4/net/bridge/netfilter/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
35 into connections. This is used to enhance packet filtering via
48 Legacy ebtables packet/frame classifier.
50 (iptables-nft).
57 ebtables is a general, extensible frame/packet identification
111 MAC/IP address pairs can be matched, f.e. for anti-spoofing rules.
153 This option adds the mark match, which allows matching frames based on
161 tristate "ebt: packet type filter support"
163 This option adds the packet type match, which allows matching on the
164 type of packet based on its Ethernet "class" (as determined by
/linux-6.14.4/net/802/
Dfddi.c1 // SPDX-License-Identifier: GPL-2.0-or-later
7 * FDDI-type device handling.
13 * fddi.c is based on previous eth.c and tr.c work by
17 * Florian La Roche, <[email protected]-sb.de>
56 hl=FDDI_K_8022_HLEN-3; in fddi_header()
58 fddi->fc = FDDI_FC_K_ASYNC_LLC_DEF; in fddi_header()
61 fddi->hdr.llc_snap.dsap = FDDI_EXTENDED_SAP; in fddi_header()
62 fddi->hdr.llc_snap.ssap = FDDI_EXTENDED_SAP; in fddi_header()
63 fddi->hdr.llc_snap.ctrl = FDDI_UI_CMD; in fddi_header()
64 fddi->hdr.llc_snap.oui[0] = 0x00; in fddi_header()
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