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/Linux-v5.4/Documentation/networking/
Dudplite.txt2 The UDP-Lite protocol (RFC 3828)
6 UDP-Lite is a Standards-Track IETF transport protocol whose characteristic
14 o The UDP-Lite Homepage:
18 o The UDP-Lite HOWTO on
20 files/UDP-Lite-HOWTO.txt
22 o The Wireshark UDP-Lite WiKi (with capture files):
30 Several applications have been ported successfully to UDP-Lite. Ethereal
31 (now called wireshark) has UDP-Litev4/v6 support by default.
32 Porting applications to UDP-Lite is straightforward: only socket level and
39 UDP-Lite provides a connectionless, unreliable datagram service and hence
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Dl2tp.txt11 L2TPv2 (PPP over L2TP (UDP tunnels)).
22 sessions over a UDP tunnel.
30 UDP header (UDP is optional). It is also possible to create static
49 Each L2TP tunnel is implemented using a UDP or L2TPIP socket; L2TPIP
50 provides L2TPv3 IP encapsulation (no UDP) and is implemented using a
84 the tunnel context keeps a reference to the tunnel UDP or L2TPIP
94 1. Use a UDP socket per tunnel.
100 L2TP UDP encapsulation socket and flags it for use by the
101 referenced tunnel id. This hooks up the UDP receive path via
113 descriptor of a UDP socket. See struct pppol2tp_addr in
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Dsegmentation-offloads.rst16 * UDP Fragmentation Offload - UFO
17 * IPIP, SIT, GRE, and UDP Tunnel Offloads
52 UDP Fragmentation Offload
55 UDP fragmentation offload allows a device to fragment an oversized UDP
56 datagram into multiple IPv4 fragments. Many of the requirements for UDP
61 still receive them from tuntap and similar devices. Offload of UDP-based
65 IPIP, SIT, GRE, UDP Tunnel, and Remote Checksum Offloads
89 UDP/GRE Tunnel::
Dnetconsole.txt13 This module logs kernel printk messages over UDP allowing debugging of
32 src-port source for UDP packets (defaults to 6665)
114 local_port Source UDP port to use (read-write)
115 remote_port Remote agent's UDP port (read-write)
210 only IP networks, UDP packets and ethernet devices are supported.
Dnetdev-features.txt108 It means that device can fill TCP/UDP-like checksum anywhere in the packets
116 * Transmit UDP segmentation offload
118 NETIF_F_GSO_UDP_L4 accepts a single UDP header with a payload that exceeds
120 replicates the network and UDP headers (fixing up the last one if less than
Dnf_conntrack-sysctl.txt87 17 - log UDP packets
162 This extended timeout will be used in case there is an UDP stream
Dchecksum-offloads.rst41 pseudo-header for UDP or TCP).
87 The ones-complement sum of a correctly checksummed TCP or UDP packet is equal
107 LCO is performed by the stack when constructing an outer UDP header for an
Dgtp.txt100 GTP-U uses UDP for transporting PDUs. The receiving UDP port is 2151
146 GTP-U uses UDP for transporting PDU's. The receiving UDP port is 2152
Dsctp.txt19 referred to as the UDP-style API of the Sockets Extensions for SCTP, as
Dpktgen.txt182 pgset "udp_src_min 9" set UDP source port min, If < udp_src_max, then
185 pgset "udp_src_max 9" set UDP source port max.
186 pgset "udp_dst_min 9" set UDP destination port min, If < udp_dst_max, then
188 pgset "udp_dst_max 9" set UDP destination port max.
Dxfrm_proc.txt38 e.g. UDP encapsulation type is mismatch
/Linux-v5.4/Documentation/networking/device_drivers/microsoft/
Dnetvsc.txt17 support checksum offload for TCP and UDP for both IPv4 and
22 Hyper-V supports receive side scaling. For TCP & UDP, packets can
26 For TCP & UDP, we can switch hash level between L3 and L4 by ethtool
27 command. TCP/UDP over IPv4 and v6 can be set differently. The default
31 On Azure, fragmented UDP packets have high loss rate with L4
34 For example, for UDP over IPv4 on eth0:
35 To include UDP port numbers in hashing:
37 To exclude UDP port numbers in hashing:
39 To show UDP hash level:
/Linux-v5.4/drivers/block/
Dfloppy.c314 #define UDP (&drive_params[drive]) macro
686 delay = UDP->timeout; in __reschedule_timeout()
689 if (UDP->flags & FD_DEBUG) in __reschedule_timeout()
743 if (time_before(jiffies, UDRS->select_date + UDP->select_delay)) in disk_change()
752 debug_dcl(UDP->flags, in disk_change()
754 debug_dcl(UDP->flags, "jiffies=%lu\n", jiffies); in disk_change()
755 debug_dcl(UDP->flags, "disk change line=%x\n", fd_inb(FD_DIR) & 0x80); in disk_change()
756 debug_dcl(UDP->flags, "flags=%lx\n", UDRS->flags); in disk_change()
758 if (UDP->flags & FD_BROKEN_DCL) in disk_change()
760 if ((fd_inb(FD_DIR) ^ UDP->flags) & 0x80) { in disk_change()
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/Linux-v5.4/drivers/net/ethernet/intel/iavf/
Diavf_common.c575 IAVF_PTT(24, IP, IPV4, NOF, NONE, NONE, NOF, UDP, PAY4),
584 IAVF_PTT(31, IP, IPV4, NOF, IP_IP, IPV4, NOF, UDP, PAY4),
593 IAVF_PTT(38, IP, IPV4, NOF, IP_IP, IPV6, NOF, UDP, PAY4),
605 IAVF_PTT(46, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, UDP, PAY4),
614 IAVF_PTT(53, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, UDP, PAY4),
626 IAVF_PTT(61, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, UDP, PAY4),
635 IAVF_PTT(68, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, UDP, PAY4),
647 IAVF_PTT(76, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, UDP, PAY4),
656 IAVF_PTT(83, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, UDP, PAY4),
665 IAVF_PTT(90, IP, IPV6, NOF, NONE, NONE, NOF, UDP, PAY3),
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/Linux-v5.4/net/6lowpan/
DKconfig66 tristate "UDP Header Support"
69 6LoWPAN IPv6 UDP Header compression according to RFC6282.
78 tristate "GHC UDP Support"
80 6LoWPAN IPv6 UDP generic header compression according to RFC7400.
/Linux-v5.4/Documentation/networking/device_drivers/freescale/
Dgianfar.txt10 the 8548) has the ability to perform TCP, UDP, and IP checksums
11 in hardware. The Linux kernel only offloads the TCP and UDP
13 the driver only supports checksumming for TCP/IP and UDP/IP
/Linux-v5.4/net/tipc/
DKconfig31 bool "IP/UDP media type support"
35 Saying Y here will enable support for running TIPC over IP/UDP
/Linux-v5.4/net/rxrpc/
DKconfig27 Say Y here to allow AF_RXRPC to use IPV6 UDP as well as IPV4 UDP as
/Linux-v5.4/net/l2tp/
DKconfig78 L2TP frames, namely UDP and plain IP (without UDP). This
81 when UDP encapsulation is not required. When L2TP is carried
/Linux-v5.4/net/sctp/
Dsocket.c220 if (!sctp_style(sk, UDP)) { in sctp_id2assoc()
1749 if ((sflags & SCTP_SENDALL) && sctp_style(sk, UDP) && in sctp_sendmsg_check_sflags()
1959 if ((sflags & SCTP_SENDALL) && sctp_style(sk, UDP)) { in sctp_sendmsg()
2663 sctp_style(sk, UDP)) in sctp_setsockopt_peer_addr_params()
2817 sctp_style(sk, UDP)) in sctp_setsockopt_delayed_ack()
2920 sctp_style(sk, UDP)) in sctp_setsockopt_default_send_param()
2981 sctp_style(sk, UDP)) in sctp_setsockopt_default_sndinfo()
3108 sctp_style(sk, UDP)) in sctp_setsockopt_rtoinfo()
3171 sctp_style(sk, UDP)) in sctp_setsockopt_associnfo()
3295 sctp_style(sk, UDP)) in sctp_setsockopt_maxseg()
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/Linux-v5.4/Documentation/networking/device_drivers/intel/
Dixgb.rst168 offload for received packets (both UDP and TCP) to the adapter hardware.
270 ### CORE settings (mostly for socket and UDP effect)
293 Resolving Slow UDP Traffic
295 If your server does not seem to be able to receive UDP traffic as fast as it
297 the network stack buffers as large as they need to be to support high UDP
443 UDP Stress Test Dropped Packet Issue
445 Under small packets UDP stress test with 10GbE driver, the Linux system
446 may drop UDP packets due to the fullness of socket buffers. You may want
Dfm10k.rst114 - udp4: UDP over IPv4
115 - udp6: UDP over IPv6
/Linux-v5.4/arch/powerpc/platforms/ps3/
DKconfig161 bool "PS3 udbg output via UDP broadcasts on Ethernet"
164 Enables udbg early debugging output by sending broadcast UDP
165 via the Ethernet port (UDP port number 18194).
/Linux-v5.4/Documentation/networking/device_drivers/aquantia/
Datlantic.txt251 destination TCP/UDP/SCTP port) is compared against 8 filters. For IPv4, up to
254 TCP/UDP/SCTP packets.
319 RSS for UDP
322 incorrect working of RSS for fragmented UDP traffic. To disable RSS for UDP the
/Linux-v5.4/drivers/net/ethernet/intel/i40e/
Di40e_common.c603 I40E_PTT(24, IP, IPV4, NOF, NONE, NONE, NOF, UDP, PAY4),
612 I40E_PTT(31, IP, IPV4, NOF, IP_IP, IPV4, NOF, UDP, PAY4),
621 I40E_PTT(38, IP, IPV4, NOF, IP_IP, IPV6, NOF, UDP, PAY4),
633 I40E_PTT(46, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, UDP, PAY4),
642 I40E_PTT(53, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, UDP, PAY4),
654 I40E_PTT(61, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, UDP, PAY4),
663 I40E_PTT(68, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, UDP, PAY4),
675 I40E_PTT(76, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, UDP, PAY4),
684 I40E_PTT(83, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, UDP, PAY4),
693 I40E_PTT(90, IP, IPV6, NOF, NONE, NONE, NOF, UDP, PAY4),
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