uml: vector: Remove unused definitions VECTOR_{WRITE,HEADERS}

Remove definitions of VECTOR_WRITE and VECTOR_HEADERS since no longer used.

Signed-off-by: Carlos Bilbao <carlos.bilbao@amd.com>
Acked-

uml: vector: Remove unused definitions VECTOR_{WRITE,HEADERS}

Remove definitions of VECTOR_WRITE and VECTOR_HEADERS since no longer used.

Signed-off-by: Carlos Bilbao <carlos.bilbao@amd.com>
Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

show more ...

uml: net: vector: fix const issue

Since the constification of MAC addresses, the argument
to uml_vector_default_bpf() must be const.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-By:

uml: net: vector: fix const issue

Since the constification of MAC addresses, the argument
to uml_vector_default_bpf() must be const.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-By: anton ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

show more ...

um: Fix typo in vector driver transport option definition

No big problem as "raw" and "gre" have the same length, but could go wrong if
they don't in the future.

Signed-off-by: Ignat Korchagin <ign

um: Fix typo in vector driver transport option definition

No big problem as "raw" and "gre" have the same length, but could go wrong if
they don't in the future.

Signed-off-by: Ignat Korchagin <ignat@cloudflare.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

show more ...

um: Loadable BPF "Firmware" for vector drivers

All vector drivers now allow a BPF program to be loaded and
associated with the RX socket in the host kernel.

1. The program can be loaded as an extra

um: Loadable BPF "Firmware" for vector drivers

All vector drivers now allow a BPF program to be loaded and
associated with the RX socket in the host kernel.

1. The program can be loaded as an extra kernel command line
option to any of the vector drivers.

2. The program can also be loaded as "firmware", using the
ethtool flash option. It is possible to turn this facility
on or off using a command line option.

A simplistic wrapper for generating the BPF firmware for the raw
socket driver out of a tcpdump/libpcap filter expression can be
found at: https://github.com/kot-begemot-uk/uml_vector_utilities/

Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

show more ...

um: Add SPDX headers for files in arch/um/drivers

Convert files to use SPDX header. All files are licensed under the GPLv2.

Signed-off-by: Alex Dewar <alex.dewar@gmx.co.uk>
Signed-off-by: Richard W

um: Add SPDX headers for files in arch/um/drivers

Convert files to use SPDX header. All files are licensed under the GPLv2.

Signed-off-by: Alex Dewar <alex.dewar@gmx.co.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>

show more ...

um: Added support for unix socket transports and bess transport

This adds support for the UNIX domain socket transports in
general and implements a Netsys::BESS compatible transport
interface.
For d

um: Added support for unix socket transports and bess transport

This adds support for the UNIX domain socket transports in
general and implements a Netsys::BESS compatible transport
interface.
For details on Netsys::BESS see https://github.com/NetSys/bess

Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

show more ...

um: Add legacy tap support and rename existing vector to hybrid

1. Adds legacy tap support
2. Renames tap+raw as hybrid

Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by:

um: Add legacy tap support and rename existing vector to hybrid

1. Adds legacy tap support
2. Renames tap+raw as hybrid

Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

show more ...

Fix vector raw inintialization logic

Vector RAW in UML needs to BPF filter its own MAC only
if QDISC_BYPASS has failed. If QDISC_BYPASS is successful, the
frames originated locally are not visible t

Fix vector raw inintialization logic

Vector RAW in UML needs to BPF filter its own MAC only
if QDISC_BYPASS has failed. If QDISC_BYPASS is successful, the
frames originated locally are not visible to readers on the
raw socket.

Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

show more ...

High Performance UML Vector Network Driver

1. Provides infrastructure for vector IO using recvmmsg/sendmmsg.
1.1. Multi-message read.
1.2. Multi-message write.
1.3. Optimized queue suppo

High Performance UML Vector Network Driver

1. Provides infrastructure for vector IO using recvmmsg/sendmmsg.
1.1. Multi-message read.
1.2. Multi-message write.
1.3. Optimized queue support for multi-packet enqueue/dequeue.
1.4. BQL/DQL support.
2. Implements transports for several transports as well support
for direct wiring of PWEs to NIC. Allows direct connection of VMs
to host, other VMs and network devices with no switch in use.
2.1. Raw socket >4 times higher PPS and 10 times higher tcp RX
than existing pcap based transport (> 4Gbit)
2.2. New tap transport using socket RX and tap xmit. Similar
performance improvements (>4Gbit)
2.3. GRE transport - direct wiring to GRE PWE
2.4. L2TPv3 transport - direct wiring to L2TPv3 PWE
3. Tuning, performance and offload related setting support via ethtool.
4. Initial BPF support - used in tap/raw to avoid software looping
5. Scatter Gather support.
6. VNET and checksum offload support for raw socket transport.
7. TSO/GSO support where applicable or available
8. Migrates all error messages to netdevice_*() and rate limits
them where needed.

Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

show more ...