7 files changed, 165 insertions, 0 deletions

diff --git a/Documentation/cgroups/net_prio.txt b/Documentation/cgroups/net_prio.txt
new file mode 100644
index 000000000000..01b322635591
--- /dev/null
+++ b/Documentation/cgroups/net_prio.txt
@@ -0,0 +1,53 @@
+Network priority cgroup
+-------------------------
+
+The Network priority cgroup provides an interface to allow an administrator to
+dynamically set the priority of network traffic generated by various
+applications
+
+Nominally, an application would set the priority of its traffic via the
+SO_PRIORITY socket option.  This however, is not always possible because:
+
+1) The application may not have been coded to set this value
+2) The priority of application traffic is often a site-specific administrative
+   decision rather than an application defined one.
+
+This cgroup allows an administrator to assign a process to a group which defines
+the priority of egress traffic on a given interface. Network priority groups can
+be created by first mounting the cgroup filesystem.
+
+# mount -t cgroup -onet_prio none /sys/fs/cgroup/net_prio
+
+With the above step, the initial group acting as the parent accounting group
+becomes visible at '/sys/fs/cgroup/net_prio'.  This group includes all tasks in
+the system. '/sys/fs/cgroup/net_prio/tasks' lists the tasks in this cgroup.
+
+Each net_prio cgroup contains two files that are subsystem specific
+
+net_prio.prioidx
+This file is read-only, and is simply informative.  It contains a unique integer
+value that the kernel uses as an internal representation of this cgroup.
+
+net_prio.ifpriomap
+This file contains a map of the priorities assigned to traffic originating from
+processes in this group and egressing the system on various interfaces. It
+contains a list of tuples in the form <ifname priority>.  Contents of this file
+can be modified by echoing a string into the file using the same tuple format.
+for example:
+
+echo "eth0 5" > /sys/fs/cgroups/net_prio/iscsi/net_prio.ifpriomap
+
+This command would force any traffic originating from processes belonging to the
+iscsi net_prio cgroup and egressing on interface eth0 to have the priority of
+said traffic set to the value 5. The parent accounting group also has a
+writeable 'net_prio.ifpriomap' file that can be used to set a system default
+priority.
+
+Priorities are set immediately prior to queueing a frame to the device
+queueing discipline (qdisc) so priorities will be assigned prior to the hardware
+queue selection being made.
+
+One usage for the net_prio cgroup is with mqprio qdisc allowing application
+traffic to be steered to hardware/driver based traffic classes. These mappings
+can then be managed by administrators or other networking protocols such as
+DCBX.
diff --git a/Documentation/devicetree/bindings/net/calxeda-xgmac.txt b/Documentation/devicetree/bindings/net/calxeda-xgmac.txt
new file mode 100644
index 000000000000..411727a3f82d
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/calxeda-xgmac.txt
@@ -0,0 +1,15 @@
+* Calxeda Highbank 10Gb XGMAC Ethernet
+
+Required properties:
+- compatible : Should be "calxeda,hb-xgmac"
+- reg : Address and length of the register set for the device
+- interrupts : Should contain 3 xgmac interrupts. The 1st is main interrupt.
+  The 2nd is pwr mgt interrupt. The 3rd is low power state interrupt.
+
+Example:
+
+ethernet@fff50000 {
+        compatible = "calxeda,hb-xgmac";
+        reg = <0xfff50000 0x1000>;
+        interrupts = <0 77 4  0 78 4  0 79 4>;
+};
diff --git a/Documentation/devicetree/bindings/net/can/cc770.txt b/Documentation/devicetree/bindings/net/can/cc770.txt
new file mode 100644
index 000000000000..77027bf6460a
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/can/cc770.txt
@@ -0,0 +1,53 @@
+Memory mapped Bosch CC770 and Intel AN82527 CAN controller
+
+Note: The CC770 is a CAN controller from Bosch, which is 100%
+compatible with the old AN82527 from Intel, but with "bugs" being fixed.
+
+Required properties:
+
+- compatible : should be "bosch,cc770" for the CC770 and "intc,82527"
+        for the AN82527.
+
+- reg : should specify the chip select, address offset and size required
+        to map the registers of the controller. The size is usually 0x80.
+
+- interrupts : property with a value describing the interrupt source
+        (number and sensitivity) required for the controller.
+
+Optional properties:
+
+- bosch,external-clock-frequency : frequency of the external oscillator
+        clock in Hz. Note that the internal clock frequency used by the
+        controller is half of that value. If not specified, a default
+        value of 16000000 (16 MHz) is used.
+
+- bosch,clock-out-frequency : slock frequency in Hz on the CLKOUT pin.
+        If not specified or if the specified value is 0, the CLKOUT pin
+        will be disabled.
+
+- bosch,slew-rate : slew rate of the CLKOUT signal. If not specified,
+        a resonable value will be calculated.
+
+- bosch,disconnect-rx0-input : see data sheet.
+
+- bosch,disconnect-rx1-input : see data sheet.
+
+- bosch,disconnect-tx1-output : see data sheet.
+
+- bosch,polarity-dominant : see data sheet.
+
+- bosch,divide-memory-clock : see data sheet.
+
+- bosch,iso-low-speed-mux : see data sheet.
+
+For further information, please have a look to the CC770 or AN82527.
+
+Examples:
+
+can@3,100 {
+        compatible = "bosch,cc770";
+        reg = <3 0x100 0x80>;
+        interrupts = <2 0>;
+        interrupt-parent = <&mpic>;
+        bosch,external-clock-frequency = <16000000>;
+};
diff --git a/Documentation/networking/ieee802154.txt b/Documentation/networking/ieee802154.txt
index f41ea2405220..1dc1c24a7547 100644
--- a/Documentation/networking/ieee802154.txt
+++ b/Documentation/networking/ieee802154.txt
@@ -78,3 +78,30 @@ in software. This is currently WIP.
 
 See header include/net/mac802154.h and several drivers in drivers/ieee802154/.
 
+6LoWPAN Linux implementation
+============================
+
+The IEEE 802.15.4 standard specifies an MTU of 128 bytes, yielding about 80
+octets of actual MAC payload once security is turned on, on a wireless link
+with a link throughput of 250 kbps or less.  The 6LoWPAN adaptation format
+[RFC4944] was specified to carry IPv6 datagrams over such constrained links,
+taking into account limited bandwidth, memory, or energy resources that are
+expected in applications such as wireless Sensor Networks.  [RFC4944] defines
+a Mesh Addressing header to support sub-IP forwarding, a Fragmentation header
+to support the IPv6 minimum MTU requirement [RFC2460], and stateless header
+compression for IPv6 datagrams (LOWPAN_HC1 and LOWPAN_HC2) to reduce the
+relatively large IPv6 and UDP headers down to (in the best case) several bytes.
+
+In Semptember 2011 the standard update was published - [RFC6282].
+It deprecates HC1 and HC2 compression and defines IPHC encoding format which is
+used in this Linux implementation.
+
+All the code related to 6lowpan you may find in files: net/ieee802154/6lowpan.*
+
+To setup 6lowpan interface you need (busybox release > 1.17.0):
+1. Add IEEE802.15.4 interface and initialize PANid;
+2. Add 6lowpan interface by command like:
+   # ip link add link wpan0 name lowpan0 type lowpan
+3. Set MAC (if needs):
+   # ip link set lowpan0 address de:ad:be:ef:ca:fe:ba:be
+4. Bring up 'lowpan0' interface
diff --git a/Documentation/networking/ifenslave.c b/Documentation/networking/ifenslave.c
index 65968fbf1e49..ac5debb2f16c 100644
--- a/Documentation/networking/ifenslave.c
+++ b/Documentation/networking/ifenslave.c
@@ -539,12 +539,14 @@ static int if_getconfig(char *ifname)
                 metric = 0;
         } else
                 metric = ifr.ifr_metric;
+        printf("The result of SIOCGIFMETRIC is %d\n", metric);
 
         strcpy(ifr.ifr_name, ifname);
         if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0)
                 mtu = 0;
         else
                 mtu = ifr.ifr_mtu;
+        printf("The result of SIOCGIFMTU is %d\n", mtu);
 
         strcpy(ifr.ifr_name, ifname);
         if (ioctl(skfd, SIOCGIFDSTADDR, &ifr) < 0) {
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index f049a1ca186f..cb2b1c6a2ce1 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -31,6 +31,16 @@ neigh/default/gc_thresh3 - INTEGER
         when using large numbers of interfaces and when communicating
         with large numbers of directly-connected peers.
 
+neigh/default/unres_qlen_bytes - INTEGER
+        The maximum number of bytes which may be used by packets
+        queued for each unresolved address by other network layers.
+        (added in linux 3.3)
+
+neigh/default/unres_qlen - INTEGER
+        The maximum number of packets which may be queued for each
+        unresolved address by other network layers.
+        (deprecated in linux 3.3) : use unres_qlen_bytes instead.
+
 mtu_expires - INTEGER
         Time, in seconds, that cached PMTU information is kept.
 
@@ -165,6 +175,9 @@ tcp_congestion_control - STRING
         connections. The algorithm "reno" is always available, but
         additional choices may be available based on kernel configuration.
         Default is set as part of kernel configuration.
+        For passive connections, the listener congestion control choice
+        is inherited.
+        [see setsockopt(listenfd, SOL_TCP, TCP_CONGESTION, "name" ...) ]
 
 tcp_cookie_size - INTEGER
         Default size of TCP Cookie Transactions (TCPCT) option, that may be
diff --git a/Documentation/networking/team.txt b/Documentation/networking/team.txt
new file mode 100644
index 000000000000..5a013686b9ea
--- /dev/null
+++ b/Documentation/networking/team.txt
@@ -0,0 +1,2 @@
+Team devices are driven from userspace via libteam library which is here:
+        https://github.com/jpirko/libteam