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/Linux-v4.19/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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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:
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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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
Dsegmentation-offloads.txt11 * UDP Fragmentation Offload - UFO
12 * IPIP, SIT, GRE, and UDP Tunnel Offloads
45 UDP Fragmentation Offload
48 UDP fragmentation offload allows a device to fragment an oversized UDP
49 datagram into multiple IPv4 fragments. Many of the requirements for UDP
54 still receive them from tuntap and similar devices. Offload of UDP-based
57 IPIP, SIT, GRE, UDP Tunnel, and Remote Checksum Offloads
80 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_GSO_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
Dixgb.txt163 offload for received packets (both UDP and TCP) to the adapter hardware.
229 ### CORE settings (mostly for socket and UDP effect)
252 Resolving Slow UDP Traffic
254 If your server does not seem to be able to receive UDP traffic as fast as it
256 the network stack buffers as large as they need to be to support high UDP
406 UDP Stress Test Dropped Packet Issue
408 Under small packets UDP stress test with 10GbE driver, the Linux system
409 may drop UDP packets due to the fullness of socket buffers. You may want
Dnf_conntrack-sysctl.txt87 17 - log UDP packets
162 This extended timeout will be used in case there is an UDP stream
Dchecksum-offloads.txt33 the sum of the pseudo-header for UDP or TCP).
74 The ones-complement sum of a correctly checksummed TCP or UDP packet is
91 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
Dvxlan.txt9 number of vendors. The protocol runs over UDP using a single
Dvxge.txt45 Checksum offload (TCP/UDP/IP) on transmit and receive paths
/Linux-v4.19/drivers/block/
Dfloppy.c313 #define UDP (&drive_params[drive]) macro
685 delay = UDP->timeout; in __reschedule_timeout()
688 if (UDP->flags & FD_DEBUG) in __reschedule_timeout()
742 if (time_before(jiffies, UDRS->select_date + UDP->select_delay)) in disk_change()
751 debug_dcl(UDP->flags, in disk_change()
753 debug_dcl(UDP->flags, "jiffies=%lu\n", jiffies); in disk_change()
754 debug_dcl(UDP->flags, "disk change line=%x\n", fd_inb(FD_DIR) & 0x80); in disk_change()
755 debug_dcl(UDP->flags, "flags=%lx\n", UDRS->flags); in disk_change()
757 if (UDP->flags & FD_BROKEN_DCL) in disk_change()
759 if ((fd_inb(FD_DIR) ^ UDP->flags) & 0x80) { in disk_change()
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/Linux-v4.19/net/6lowpan/
DKconfig65 tristate "UDP Header Support"
68 6LoWPAN IPv6 UDP Header compression according to RFC6282.
77 tristate "GHC UDP Support"
79 6LoWPAN IPv6 UDP generic header compression according to RFC7400.
/Linux-v4.19/drivers/net/ethernet/intel/i40evf/
Di40e_common.c602 I40E_PTT(24, IP, IPV4, NOF, NONE, NONE, NOF, UDP, PAY4),
611 I40E_PTT(31, IP, IPV4, NOF, IP_IP, IPV4, NOF, UDP, PAY4),
620 I40E_PTT(38, IP, IPV4, NOF, IP_IP, IPV6, NOF, UDP, PAY4),
632 I40E_PTT(46, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, UDP, PAY4),
641 I40E_PTT(53, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, UDP, PAY4),
653 I40E_PTT(61, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, UDP, PAY4),
662 I40E_PTT(68, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, UDP, PAY4),
674 I40E_PTT(76, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, UDP, PAY4),
683 I40E_PTT(83, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, UDP, PAY4),
692 I40E_PTT(90, IP, IPV6, NOF, NONE, NONE, NOF, UDP, PAY3),
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/Linux-v4.19/net/tipc/
DKconfig30 bool "IP/UDP media type support"
34 Saying Y here will enable support for running TIPC over IP/UDP
/Linux-v4.19/net/rxrpc/
DKconfig26 Say Y here to allow AF_RXRPC to use IPV6 UDP as well as IPV4 UDP as
/Linux-v4.19/net/l2tp/
DKconfig77 L2TP frames, namely UDP and plain IP (without UDP). This
80 when UDP encapsulation is not required. When L2TP is carried
/Linux-v4.19/arch/powerpc/platforms/ps3/
DKconfig163 bool "PS3 udbg output via UDP broadcasts on Ethernet"
166 Enables udbg early debugging output by sending broadcast UDP
167 via the Ethernet port (UDP port number 18194).
/Linux-v4.19/drivers/net/ethernet/intel/i40e/
Di40e_common.c596 I40E_PTT(24, IP, IPV4, NOF, NONE, NONE, NOF, UDP, PAY4),
605 I40E_PTT(31, IP, IPV4, NOF, IP_IP, IPV4, NOF, UDP, PAY4),
614 I40E_PTT(38, IP, IPV4, NOF, IP_IP, IPV6, NOF, UDP, PAY4),
626 I40E_PTT(46, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, UDP, PAY4),
635 I40E_PTT(53, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, UDP, PAY4),
647 I40E_PTT(61, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, UDP, PAY4),
656 I40E_PTT(68, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, UDP, PAY4),
668 I40E_PTT(76, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, UDP, PAY4),
677 I40E_PTT(83, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, UDP, PAY4),
686 I40E_PTT(90, IP, IPV6, NOF, NONE, NONE, NOF, UDP, PAY4),
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/Linux-v4.19/net/sctp/
Dsocket.c253 if (!sctp_style(sk, UDP)) { in sctp_id2assoc()
1867 if ((sflags & SCTP_SENDALL) && sctp_style(sk, UDP) && in sctp_sendmsg_check_sflags()
2073 if ((sflags & SCTP_SENDALL) && sctp_style(sk, UDP)) { in sctp_sendmsg()
2765 if (!asoc && params.spp_assoc_id && sctp_style(sk, UDP)) in sctp_setsockopt_peer_addr_params()
2882 if (!asoc && params.sack_assoc_id && sctp_style(sk, UDP)) in sctp_setsockopt_delayed_ack()
3007 if (!asoc && info.sinfo_assoc_id && sctp_style(sk, UDP)) in sctp_setsockopt_default_send_param()
3047 if (!asoc && info.snd_assoc_id && sctp_style(sk, UDP)) in sctp_setsockopt_default_sndinfo()
3154 if (!asoc && rtoinfo.srto_assoc_id && sctp_style(sk, UDP)) in sctp_setsockopt_rtoinfo()
3216 if (!asoc && assocparams.sasoc_assoc_id && sctp_style(sk, UDP)) in sctp_setsockopt_associnfo()
3357 if (params.assoc_id && sctp_style(sk, UDP)) in sctp_setsockopt_maxseg()
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