linux.git/drivers/net/Kconfig, branch v4.15

net: Add support for networking over Thunderbolt cable

2017-10-02T18:24:42+00:00

ThunderboltIP is a protocol created by Apple to tunnel IP/ethernet
traffic over a Thunderbolt cable. The protocol consists of configuration
phase where each side sends ThunderboltIP login packets (the protocol is
determined by UUID in the XDomain packet header) over the configuration
channel. Once both sides get positive acknowledgment to their login
packet, they configure high-speed DMA path accordingly. This DMA path is
then used to transmit and receive networking traffic.

This patch creates a virtual ethernet interface the host software can
use in the same way as any other networking interface. Once the
interface is brought up successfully network packets get tunneled over
the Thunderbolt cable to the remote host and back.

The connection is terminated by sending a ThunderboltIP logout packet
over the configuration channel. We do this when the network interface is
brought down by user or the driver is unloaded.

Signed-off-by: Amir Levy 
Signed-off-by: Michael Jamet 
Signed-off-by: Mika Westerberg 
Reviewed-by: Yehezkel Bernat 
Reviewed-by: Andy Shevchenko 
Signed-off-by: David S. Miller

x86/lguest: Remove lguest support

2017-08-24T07:57:28+00:00

Lguest seems to be rather unused these days. It has seen only patches
ensuring it still builds the last two years and its official state is
"Odd Fixes".

Remove it in order to be able to clean up the paravirt code.

Signed-off-by: Juergen Gross 
Acked-by: Rusty Russell 
Acked-by: Thomas Gleixner 
Cc: Linus Torvalds 
Cc: Peter Zijlstra 
Cc: boris.ostrovsky@oracle.com
Cc: lguest@lists.ozlabs.org
Cc: rusty@rustcorp.com.au
Cc: xen-devel@lists.xenproject.org
Link: http://lkml.kernel.org/r/20170816173157.8633-3-jgross@suse.com
Signed-off-by: Ingo Molnar

VSOCK: Add vsockmon device

2017-04-24T16:35:56+00:00

Add vsockmon virtual network device that receives packets from the vsock
transports and exposes them to user space.

Based on the nlmon device.

Signed-off-by: Gerard Garcia 
Signed-off-by: Stefan Hajnoczi 
Signed-off-by: David S. Miller

vmxnet3: prevent building with 64K pages

2017-02-17T20:25:49+00:00

I got a warning about broken code on ARM64 with 64K pages:

drivers/net/vmxnet3/vmxnet3_drv.c: In function 'vmxnet3_rq_init':
drivers/net/vmxnet3/vmxnet3_drv.c:1679:29: error: large integer implicitly truncated to unsigned type [-Werror=overflow]
    rq->buf_info[0][i].len = PAGE_SIZE;

'len' here is a 16-bit integer, so this clearly won't work. I don't think
this driver is used much on anything other than x86, so there is no need
to fix this properly and we can work around it with a Kconfig dependency
to forbid known-broken configurations. qemu in theory supports it on
other architectures too, but presumably only for compatibility with x86
guests that also run on vmware.

CONFIG_PAGE_SIZE_64KB is used on hexagon, mips, sh and tile, the other
symbols are architecture-specific names for the same thing.

Signed-off-by: Arnd Bergmann 
Signed-off-by: David S. Miller

ipvtap: IP-VLAN based tap driver

2017-02-12T01:59:41+00:00

This patch adds a tap character device driver that is based on the
IP-VLAN network interface, called ipvtap. An ipvtap device can be created
in the same way as an ipvlan device, using 'type ipvtap', and then accessed
using the tap user space interface.

Signed-off-by: Sainath Grandhi 
Signed-off-by: David S. Miller

tap: tap as an independent module

2017-02-12T01:59:41+00:00

This patch makes tap a separate module for other types of virtual interfaces, for example,
ipvlan to use.

Signed-off-by: Sainath Grandhi 
Signed-off-by: David S. Miller

gro_cells: move to net/core/gro_cells.c

2017-02-08T19:38:18+00:00

We have many gro cells users, so lets move the code to avoid
duplication.

This creates a CONFIG_GRO_CELLS option.

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

ipvlan: Fix dependency issue

2016-09-21T02:55:23+00:00

kbuild-build-bot reported that if NETFILTER is not selected, the
build fails pointing to netfilter symbols.

Fixes: 4fbae7d83c98 ("ipvlan: Introduce l3s mode")

Signed-off-by: Mahesh Bandewar 
Signed-off-by: David S. Miller

ipvlan: Introduce l3s mode

2016-09-19T05:25:22+00:00

In a typical IPvlan L3 setup where master is in default-ns and
each slave is into different (slave) ns. In this setup egress
packet processing for traffic originating from slave-ns will
hit all NF_HOOKs in slave-ns as well as default-ns. However same
is not true for ingress processing. All these NF_HOOKs are
hit only in the slave-ns skipping them in the default-ns.
IPvlan in L3 mode is restrictive and if admins want to deploy
iptables rules in default-ns, this asymmetric data path makes it
impossible to do so.

This patch makes use of the l3_rcv() (added as part of l3mdev
enhancements) to perform input route lookup on RX packets without
changing the skb->dev and then uses nf_hook at NF_INET_LOCAL_IN
to change the skb->dev just before handing over skb to L4.

Signed-off-by: Mahesh Bandewar 
CC: David Ahern 
Reviewed-by: David Ahern 
Signed-off-by: David S. Miller

gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)

2016-05-10T16:25:04+00:00

This is an initial implementation of a netdev driver for GTP datapath
(GTP-U) v0 and v1, according to the GSM TS 09.60 and 3GPP TS 29.060
standards. This tunneling protocol is used to prevent subscribers from
accessing mobile carrier core network infrastructure.

This implementation requires a GGSN userspace daemon that implements the
signaling protocol (GTP-C), such as OpenGGSN [1]. This userspace daemon
updates the PDP context database that represents active subscriber
sessions through a genetlink interface.

For more context on this tunneling protocol, you can check the slides
that were presented during the NetDev 1.1 [2].

Only IPv4 is supported at this time.

[1] http://git.osmocom.org/openggsn/
[2] http://www.netdevconf.org/1.1/proceedings/slides/schultz-welte-osmocom-gtp.pdf

Signed-off-by: Pablo Neira Ayuso 
Signed-off-by: David S. Miller