| /linux/net/sched/ |
| H A D | Kconfig | 1 # 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/net/ipv6/netfilter/ |
| H A D | Kconfig | 1 # 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/net/netfilter/ |
| H A D | Kconfig | 1 # 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/Documentation/networking/ |
| H A D | scaling.rst | 1 .. 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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|
| H A D | tls-offload.rst | 1 .. 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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|
| H A D | gtp.rst | 1 .. 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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|
| H A D | openvswitch.rst | 1 .. 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/drivers/net/ethernet/amd/xgbe/ |
| H A D | xgbe-hwtstamp.c | 1 // SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause)
3 * Copyright (c) 2014-2025, Advanced Micro Devices, Inc.
11 #include "xgbe-common.h"
29 while (--count && XGMAC_IOREAD_BITS(pdata, MAC_TSCR, TSUPDT)) in xgbe_update_tstamp_time()
33 netdev_err(pdata->netdev, in xgbe_update_tstamp_time()
47 while (--count && XGMAC_IOREAD_BITS(pdata, MAC_TSCR, TSADDREG)) in xgbe_update_tstamp_addend()
51 netdev_err(pdata->netdev, in xgbe_update_tstamp_addend()
66 while (--count && XGMAC_IOREAD_BITS(pdata, MAC_TSCR, TSINIT)) in xgbe_set_tstamp_time()
70 netdev_err(pdata->netdev, "timed out initializing timestamp\n"); in xgbe_set_tstamp_time()
89 if (pdata->vdata->tx_tstamp_workaround) { in xgbe_get_tx_tstamp()
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|
| /linux/net/ |
| H A D | Kconfig | 1 # 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!
84 source "net/packet/Kconfi
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| /linux/net/dccp/ccids/lib/ |
| H A D | packet_history.h | |
| /linux/net/batman-adv/ |
| H A D | tvlv.c | 1 // 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/net/ipv4/ |
| H A D | Kconfig | 1 # 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'
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| /linux/net/sctp/ |
| H A D | Kconfig | 1 # 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 -
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| /linux/drivers/net/ethernet/intel/igbvf/ |
| H A D | vf.h | 1 /* 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/drivers/net/wireless/ath/ath12k/ |
| H A D | rx_desc.h | 1 /* SPDX-License-Identifier: BSD-3-Clause-Clear */
3 * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
4 * Copyright (c) 2021-2025 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/Documentation/networking/device_drivers/ethernet/intel/ |
| H A D | ice.rst | 1 .. 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/arch/mips/include/asm/octeon/ |
| H A D | cvmx-pko.h | 7 * 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/drivers/input/mouse/ |
| H A D | touchkit_ps2.c | 1 // 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/Documentation/networking/devlink/ |
| H A D | devlink-dpipe.rst | 1 .. 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/Documentation/driver-api/soundwire/ |
| H A D | bra.rst | 6 -----------
12 ------------
14 The SoundWire 1.x specification provides a mechanism to speed-up
17 solution based on the Bulk Payload Transport (BPT) definitions.
28 10-byte overhead per frame (header and footer response).
36 Port 0, and likewise the Manager SHALL expose audio-like Ports
41 bandwidth. If there are no on-going audio transfers, the entire
61 need to be spaced in time or flow-controlled.
63 (8) Each BRA packet SHALL be marked as 'Active' when valid data is
78 --------------
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|
| /linux/Documentation/netlabel/ |
| H A D | lsm_interface.rst | 14 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/tools/testing/selftests/drivers/net/ |
| H A D | xdp.py | 2 # SPDX-License-Identifier: GPL-2.0
31 PASS = 0 # Pass the packet up to the stack
32 DROP = 1 # Drop the packet
33 TX = 2 # Route the packet to the remote host
34 TAIL_ADJST = 3 # Adjust the tail of the packet
35 HEAD_ADJST = 4 # Adjust the head of the packet
70 rx_udp_cmd = f"socat -{cfg.addr_ipver} -T 2 -u UDP-RECV:{port},reuseport STDOUT"
71 tx_udp_cmd = f"echo -n {test_string} | socat -t 2 -u STDIN UDP:{cfg.baddr}:{port}"
82 Tests UDP packet exchange between a local and remote host.
121 xdp_info = ip(f"-d link show dev {cfg.ifname}", json=True)[0]
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|
| /linux/net/bridge/netfilter/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
35 into connections. This is used to enhance packet filtering via
49 Legacy ebtables packet/frame classifier.
51 (iptables-nft).
58 ebtables is a general, extensible frame/packet identification
112 MAC/IP address pairs can be matched, f.e. for anti-spoofing rules.
154 This option adds the mark match, which allows matching frames based on
162 tristate "ebt: packet type filter support"
164 This option adds the packet type match, which allows matching on the
165 type of packet based on its Ethernet "class" (as determined by
|
| /linux/net/802/ |
| H A D | fddi.c | 1 // 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, <rzsfl@rz.uni-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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|
| /linux/drivers/net/usb/ |
| H A D | cx82310_eth.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Driver for USB ethernet port of Conexant CX82310-based ADSL routers
50 * - optionally send some data (command parameters)
51 * - optionally wait for the reply
52 * - optionally read some data from the reply
58 struct usb_device *udev = dev->udev; in cx82310_cmd()
62 return -ENOMEM; in cx82310_cmd()
64 /* create command packet */ in cx82310_cmd()
67 memcpy(buf + 4, wdata, min_t(int, wlen, CMD_PACKET_SIZE - 4)); in cx82310_cmd()
69 /* send command packet */ in cx82310_cmd()
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|