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Al Viro committed Apr 12, 2015
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8 changes: 8 additions & 0 deletions Documentation/ABI/testing/sysfs-class-net
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Expand Up @@ -188,6 +188,14 @@ Description:
Indicates the interface unique physical port identifier within
the NIC, as a string.

What: /sys/class/net/<iface>/phys_port_name
Date: March 2015
KernelVersion: 4.0
Contact: netdev@vger.kernel.org
Description:
Indicates the interface physical port name within the NIC,
as a string.

What: /sys/class/net/<iface>/speed
Date: October 2009
KernelVersion: 2.6.33
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8 changes: 8 additions & 0 deletions Documentation/ABI/testing/sysfs-class-net-queues
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Expand Up @@ -24,6 +24,14 @@ Description:
Indicates the number of transmit timeout events seen by this
network interface transmit queue.

What: /sys/class/<iface>/queues/tx-<queue>/tx_maxrate
Date: March 2015
KernelVersion: 4.1
Contact: netdev@vger.kernel.org
Description:
A Mbps max-rate set for the queue, a value of zero means disabled,
default is disabled.

What: /sys/class/<iface>/queues/tx-<queue>/xps_cpus
Date: November 2010
KernelVersion: 2.6.38
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7 changes: 6 additions & 1 deletion Documentation/devicetree/bindings/net/apm-xgene-enet.txt
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Expand Up @@ -14,7 +14,11 @@ Required properties for all the ethernet interfaces:
- "enet_csr": Ethernet control and status register address space
- "ring_csr": Descriptor ring control and status register address space
- "ring_cmd": Descriptor ring command register address space
- interrupts: Ethernet main interrupt
- interrupts: Two interrupt specifiers can be specified.
- First is the Rx interrupt. This irq is mandatory.
- Second is the Tx completion interrupt.
This is supported only on SGMII based 1GbE and 10GbE interfaces.
- port-id: Port number (0 or 1)
- clocks: Reference to the clock entry.
- local-mac-address: MAC address assigned to this device
- phy-connection-type: Interface type between ethernet device and PHY device
Expand Down Expand Up @@ -49,6 +53,7 @@ Example:
<0x0 0X10000000 0x0 0X200>;
reg-names = "enet_csr", "ring_csr", "ring_cmd";
interrupts = <0x0 0x3c 0x4>;
port-id = <0>;
clocks = <&menetclk 0>;
local-mac-address = [00 01 73 00 00 01];
phy-connection-type = "rgmii";
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4 changes: 3 additions & 1 deletion Documentation/devicetree/bindings/net/dsa/dsa.txt
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Expand Up @@ -19,7 +19,9 @@ the parent DSA node. The maximum number of allowed child nodes is 4
(DSA_MAX_SWITCHES).
Each of these switch child nodes should have the following required properties:

- reg : Describes the switch address on the MII bus
- reg : Contains two fields. The first one describes the
address on the MII bus. The second is the switch
number that must be unique in cascaded configurations
- #address-cells : Must be 1
- #size-cells : Must be 0

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8 changes: 6 additions & 2 deletions Documentation/devicetree/bindings/net/ieee802154/at86rf230.txt
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Expand Up @@ -6,18 +6,22 @@ Required properties:
- spi-max-frequency: maximal bus speed, should be set to 7500000 depends
sync or async operation mode
- reg: the chipselect index
- interrupts: the interrupt generated by the device
- interrupts: the interrupt generated by the device. Non high-level
can occur deadlocks while handling isr.

Optional properties:
- reset-gpio: GPIO spec for the rstn pin
- sleep-gpio: GPIO spec for the slp_tr pin
- xtal-trim: u8 value for fine tuning the internal capacitance
arrays of xtal pins: 0 = +0 pF, 0xf = +4.5 pF

Example:

at86rf231@0 {
compatible = "atmel,at86rf231";
spi-max-frequency = <7500000>;
reg = <0>;
interrupts = <19 1>;
interrupts = <19 4>;
interrupt-parent = <&gpio3>;
xtal-trim = /bits/ 8 <0x06>;
};
4 changes: 4 additions & 0 deletions Documentation/devicetree/bindings/net/ieee802154/cc2520.txt
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Expand Up @@ -13,11 +13,15 @@ Required properties:
- cca-gpio: GPIO spec for the CCA pin
- vreg-gpio: GPIO spec for the VREG pin
- reset-gpio: GPIO spec for the RESET pin
Optional properties:
- amplified: include if the CC2520 is connected to a CC2591 amplifier

Example:
cc2520@0 {
compatible = "ti,cc2520";
reg = <0>;
spi-max-frequency = <4000000>;
amplified;
pinctrl-names = "default";
pinctrl-0 = <&cc2520_cape_pins>;
fifo-gpio = <&gpio1 18 0>;
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34 changes: 27 additions & 7 deletions Documentation/devicetree/bindings/net/keystone-netcp.txt
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Expand Up @@ -49,6 +49,7 @@ Required properties:
- compatible: Should be "ti,netcp-1.0"
- clocks: phandle to the reference clocks for the subsystem.
- dma-id: Navigator packet dma instance id.
- ranges: address range of NetCP (includes, Ethernet SS, PA and SA)

Optional properties:
- reg: register location and the size for the following register
Expand All @@ -64,10 +65,30 @@ NetCP device properties: Device specification for NetCP sub-modules.
1Gb/10Gb (gbe/xgbe) ethernet switch sub-module specifications.
Required properties:
- label: Must be "netcp-gbe" for 1Gb & "netcp-xgbe" for 10Gb.
- compatible: Must be one of below:-
"ti,netcp-gbe" for 1GbE on NetCP 1.4
"ti,netcp-gbe-5" for 1GbE N NetCP 1.5 (N=5)
"ti,netcp-gbe-9" for 1GbE N NetCP 1.5 (N=9)
"ti,netcp-gbe-2" for 1GbE N NetCP 1.5 (N=2)
"ti,netcp-xgbe" for 10 GbE

- reg: register location and the size for the following register
regions in the specified order.
- subsystem registers
- serdes registers
- switch subsystem registers
- sgmii port3/4 module registers (only for NetCP 1.4)
- switch module registers
- serdes registers (only for 10G)

NetCP 1.4 ethss, here is the order
index #0 - switch subsystem registers
index #1 - sgmii port3/4 module registers
index #2 - switch module registers

NetCP 1.5 ethss 9 port, 5 port and 2 port
index #0 - switch subsystem registers
index #1 - switch module registers
index #2 - serdes registers

- tx-channel: the navigator packet dma channel name for tx.
- tx-queue: the navigator queue number associated with the tx dma channel.
- interfaces: specification for each of the switch port to be registered as a
Expand Down Expand Up @@ -120,14 +141,13 @@ Optional properties:

Example binding:

netcp: netcp@2090000 {
netcp: netcp@2000000 {
reg = <0x2620110 0x8>;
reg-names = "efuse";
compatible = "ti,netcp-1.0";
#address-cells = <1>;
#size-cells = <1>;
ranges;

ranges = <0 0x2000000 0xfffff>;
clocks = <&papllclk>, <&clkcpgmac>, <&chipclk12>;
dma-coherent;
/* big-endian; */
Expand All @@ -137,9 +157,9 @@ netcp: netcp@2090000 {
#address-cells = <1>;
#size-cells = <1>;
ranges;
gbe@0x2090000 {
gbe@90000 {
label = "netcp-gbe";
reg = <0x2090000 0xf00>;
reg = <0x90000 0x300>, <0x90400 0x400>, <0x90800 0x700>;
/* enable-ale; */
tx-queue = <648>;
tx-channel = <8>;
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5 changes: 4 additions & 1 deletion Documentation/devicetree/bindings/net/macb.txt
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Expand Up @@ -2,10 +2,13 @@

Required properties:
- compatible: Should be "cdns,[<chip>-]{macb|gem}"
Use "cdns,at91sam9260-macb" Atmel at91sam9260 and at91sam9263 SoCs.
Use "cdns,at91sam9260-macb" for Atmel at91sam9 SoCs or the 10/100Mbit IP
available on sama5d3 SoCs.
Use "cdns,at32ap7000-macb" for other 10/100 usage or use the generic form: "cdns,macb".
Use "cdns,pc302-gem" for Picochip picoXcell pc302 and later devices based on
the Cadence GEM, or the generic form: "cdns,gem".
Use "cdns,sama5d3-gem" for the Gigabit IP available on Atmel sama5d3 SoCs.
Use "cdns,sama5d4-gem" for the Gigabit IP available on Atmel sama5d4 SoCs.
- reg: Address and length of the register set for the device
- interrupts: Should contain macb interrupt
- phy-mode: See ethernet.txt file in the same directory.
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8 changes: 8 additions & 0 deletions Documentation/input/alps.txt
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Expand Up @@ -114,6 +114,9 @@ ALPS Absolute Mode - Protocol Version 2
byte 4: 0 y6 y5 y4 y3 y2 y1 y0
byte 5: 0 z6 z5 z4 z3 z2 z1 z0

Protocol Version 2 DualPoint devices send standard PS/2 mouse packets for
the DualPoint Stick.

Dualpoint device -- interleaved packet format
---------------------------------------------

Expand All @@ -127,6 +130,11 @@ Dualpoint device -- interleaved packet format
byte 7: 0 y6 y5 y4 y3 y2 y1 y0
byte 8: 0 z6 z5 z4 z3 z2 z1 z0

Devices which use the interleaving format normally send standard PS/2 mouse
packets for the DualPoint Stick + ALPS Absolute Mode packets for the
touchpad, switching to the interleaved packet format when both the stick and
the touchpad are used at the same time.

ALPS Absolute Mode - Protocol Version 3
---------------------------------------

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6 changes: 6 additions & 0 deletions Documentation/input/event-codes.txt
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Expand Up @@ -294,6 +294,12 @@ accordingly. This property does not affect kernel behavior.
The kernel does not provide button emulation for such devices but treats
them as any other INPUT_PROP_BUTTONPAD device.

INPUT_PROP_ACCELEROMETER
-------------------------
Directional axes on this device (absolute and/or relative x, y, z) represent
accelerometer data. All other axes retain their meaning. A device must not mix
regular directional axes and accelerometer axes on the same event node.

Guidelines:
==========
The guidelines below ensure proper single-touch and multi-finger functionality.
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9 changes: 6 additions & 3 deletions Documentation/input/multi-touch-protocol.txt
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Expand Up @@ -312,9 +312,12 @@ ABS_MT_TOOL_TYPE

The type of approaching tool. A lot of kernel drivers cannot distinguish
between different tool types, such as a finger or a pen. In such cases, the
event should be omitted. The protocol currently supports MT_TOOL_FINGER and
MT_TOOL_PEN [2]. For type B devices, this event is handled by input core;
drivers should instead use input_mt_report_slot_state().
event should be omitted. The protocol currently supports MT_TOOL_FINGER,
MT_TOOL_PEN, and MT_TOOL_PALM [2]. For type B devices, this event is handled
by input core; drivers should instead use input_mt_report_slot_state().
A contact's ABS_MT_TOOL_TYPE may change over time while still touching the
device, because the firmware may not be able to determine which tool is being
used when it first appears.

ABS_MT_BLOB_ID

Expand Down
20 changes: 18 additions & 2 deletions Documentation/networking/can.txt
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Expand Up @@ -22,7 +22,8 @@ This file contains
4.1.3 RAW socket option CAN_RAW_LOOPBACK
4.1.4 RAW socket option CAN_RAW_RECV_OWN_MSGS
4.1.5 RAW socket option CAN_RAW_FD_FRAMES
4.1.6 RAW socket returned message flags
4.1.6 RAW socket option CAN_RAW_JOIN_FILTERS
4.1.7 RAW socket returned message flags
4.2 Broadcast Manager protocol sockets (SOCK_DGRAM)
4.2.1 Broadcast Manager operations
4.2.2 Broadcast Manager message flags
Expand Down Expand Up @@ -601,7 +602,22 @@ solution for a couple of reasons:
CAN FD frames by checking if the device maximum transfer unit is CANFD_MTU.
The CAN device MTU can be retrieved e.g. with a SIOCGIFMTU ioctl() syscall.

4.1.6 RAW socket returned message flags
4.1.6 RAW socket option CAN_RAW_JOIN_FILTERS

The CAN_RAW socket can set multiple CAN identifier specific filters that
lead to multiple filters in the af_can.c filter processing. These filters
are indenpendent from each other which leads to logical OR'ed filters when
applied (see 4.1.1).

This socket option joines the given CAN filters in the way that only CAN
frames are passed to user space that matched *all* given CAN filters. The
semantic for the applied filters is therefore changed to a logical AND.

This is useful especially when the filterset is a combination of filters
where the CAN_INV_FILTER flag is set in order to notch single CAN IDs or
CAN ID ranges from the incoming traffic.

4.1.7 RAW socket returned message flags

When using recvmsg() call, the msg->msg_flags may contain following flags:

Expand Down
3 changes: 2 additions & 1 deletion Documentation/networking/filter.txt
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Expand Up @@ -280,7 +280,8 @@ Possible BPF extensions are shown in the following table:
rxhash skb->hash
cpu raw_smp_processor_id()
vlan_tci skb_vlan_tag_get(skb)
vlan_pr skb_vlan_tag_present(skb)
vlan_avail skb_vlan_tag_present(skb)
vlan_tpid skb->vlan_proto
rand prandom_u32()

These extensions can also be prefixed with '#'.
Expand Down
49 changes: 48 additions & 1 deletion Documentation/networking/ip-sysctl.txt
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Expand Up @@ -388,6 +388,16 @@ tcp_mtu_probing - INTEGER
1 - Disabled by default, enabled when an ICMP black hole detected
2 - Always enabled, use initial MSS of tcp_base_mss.

tcp_probe_interval - INTEGER
Controls how often to start TCP Packetization-Layer Path MTU
Discovery reprobe. The default is reprobing every 10 minutes as
per RFC4821.

tcp_probe_threshold - INTEGER
Controls when TCP Packetization-Layer Path MTU Discovery probing
will stop in respect to the width of search range in bytes. Default
is 8 bytes.

tcp_no_metrics_save - BOOLEAN
By default, TCP saves various connection metrics in the route cache
when the connection closes, so that connections established in the
Expand Down Expand Up @@ -1116,11 +1126,23 @@ arp_accept - BOOLEAN
gratuitous arp frame, the arp table will be updated regardless
if this setting is on or off.

mcast_solicit - INTEGER
The maximum number of multicast probes in INCOMPLETE state,
when the associated hardware address is unknown. Defaults
to 3.

ucast_solicit - INTEGER
The maximum number of unicast probes in PROBE state, when
the hardware address is being reconfirmed. Defaults to 3.

app_solicit - INTEGER
The maximum number of probes to send to the user space ARP daemon
via netlink before dropping back to multicast probes (see
mcast_solicit). Defaults to 0.
mcast_resolicit). Defaults to 0.

mcast_resolicit - INTEGER
The maximum number of multicast probes after unicast and
app probes in PROBE state. Defaults to 0.

disable_policy - BOOLEAN
Disable IPSEC policy (SPD) for this interface
Expand Down Expand Up @@ -1198,6 +1220,17 @@ anycast_src_echo_reply - BOOLEAN
FALSE: disabled
Default: FALSE

idgen_delay - INTEGER
Controls the delay in seconds after which time to retry
privacy stable address generation if a DAD conflict is
detected.
Default: 1 (as specified in RFC7217)

idgen_retries - INTEGER
Controls the number of retries to generate a stable privacy
address if a DAD conflict is detected.
Default: 3 (as specified in RFC7217)

mld_qrv - INTEGER
Controls the MLD query robustness variable (see RFC3810 9.1).
Default: 2 (as specified by RFC3810 9.1)
Expand Down Expand Up @@ -1518,6 +1551,20 @@ use_optimistic - BOOLEAN
0: disabled (default)
1: enabled

stable_secret - IPv6 address
This IPv6 address will be used as a secret to generate IPv6
addresses for link-local addresses and autoconfigured
ones. All addresses generated after setting this secret will
be stable privacy ones by default. This can be changed via the
addrgenmode ip-link. conf/default/stable_secret is used as the
secret for the namespace, the interface specific ones can
overwrite that. Writes to conf/all/stable_secret are refused.

It is recommended to generate this secret during installation
of a system and keep it stable after that.

By default the stable secret is unset.

icmp/*:
ratelimit - INTEGER
Limit the maximal rates for sending ICMPv6 packets.
Expand Down
21 changes: 21 additions & 0 deletions Documentation/networking/ipvs-sysctl.txt
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Expand Up @@ -22,6 +22,27 @@ backup_only - BOOLEAN
If set, disable the director function while the server is
in backup mode to avoid packet loops for DR/TUN methods.

conn_reuse_mode - INTEGER
1 - default

Controls how ipvs will deal with connections that are detected
port reuse. It is a bitmap, with the values being:

0: disable any special handling on port reuse. The new
connection will be delivered to the same real server that was
servicing the previous connection. This will effectively
disable expire_nodest_conn.

bit 1: enable rescheduling of new connections when it is safe.
That is, whenever expire_nodest_conn and for TCP sockets, when
the connection is in TIME_WAIT state (which is only possible if
you use NAT mode).

bit 2: it is bit 1 plus, for TCP connections, when connections
are in FIN_WAIT state, as this is the last state seen by load
balancer in Direct Routing mode. This bit helps on adding new
real servers to a very busy cluster.

conntrack - BOOLEAN
0 - disabled (default)
not 0 - enabled
Expand Down
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