Merge tag 'net-pull-request' of https://github.com/jasowang/qemu into staging

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Merge tag 'net-pull-request' of https://github.com/jasowang/qemu into staging

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# gpg: Signature made Mon 18 Sep 2023 02:56:11 EDT
# gpg: using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" [full]
# Primary key fingerprint: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211

* tag 'net-pull-request' of https://github.com/jasowang/qemu:
net/tap: Avoid variable-length array
net/dump: Avoid variable length array
hw/net/rocker: Avoid variable length array
hw/net/fsl_etsec/rings.c: Avoid variable length array
net: add initial support for AF_XDP network backend
tests: bump libvirt-ci for libasan and libxdp
e1000e: rename e1000e_ba_state and e1000e_write_hdr_to_rx_buffers
igb: packet-split descriptors support
igb: add IPv6 extended headers traffic detection
igb: RX payload guest writting refactoring
igb: RX descriptors guest writting refactoring
igb: rename E1000E_RingInfo_st
igb: remove TCP ACK detection
virtio-net: Add support for USO features
virtio-net: Add USO flags to vhost support.
tap: Add check for USO features
tap: Add USO support to tap device.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

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tap: Add USO support to tap device.

Passing additional parameters (USOv4 and USOv6 offloads) when
setting TAP offloads

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: A

tap: Add USO support to tap device.

Passing additional parameters (USOv4 and USOv6 offloads) when
setting TAP offloads

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Andrew Melnychenko <andrew@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>

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Merge tag 'pull-request-2022-11-11' of https://gitlab.com/thuth/qemu into staging

* Fix "unused variable" warnings from Clang 15
* Allow building of guest-agent without emulators or tools
* White sp

Merge tag 'pull-request-2022-11-11' of https://gitlab.com/thuth/qemu into staging

* Fix "unused variable" warnings from Clang 15
* Allow building of guest-agent without emulators or tools
* White space clean-ups
* Fixes for typos in the documentation

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# gpg: Signature made Fri 11 Nov 2022 05:27:34 EST
# gpg: using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg: issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg: aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg: aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2022-11-11' of https://gitlab.com/thuth/qemu:
Fix several typos in documentation (found by codespell)
net: Replace TAB indentations with spaces
qga: Allow building of the guest agent without system emulators or tools
libdecnumber/dpd/decimal64: Fix compiler warning from Clang 15
host-libusb: Remove unused variable
qemu-img: remove unused variable
tulip: Remove unused variable
rtl8139: Remove unused variable

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

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net: Replace TAB indentations with spaces

Replaces TABs with spaces, making sure to have a consistent coding style
of 4 space indentations in the net subsystem.

Resolves: https://gitlab.com/qemu-pr

net: Replace TAB indentations with spaces

Replaces TABs with spaces, making sure to have a consistent coding style
of 4 space indentations in the net subsystem.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/377
Signed-off-by: Ahmed Abouzied <email@aabouzied.com>
Message-Id: <20210614183849.20622-1-email@aabouzied.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
[thuth: Fixed mis-aligned indentation in some of the files]
Signed-off-by: Thomas Huth <thuth@redhat.com>

show more ...

Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Fri 04 Jun 2021 08:26:16 BST
# gpg: using RSA key EF04965B398D6211
# gpg: Good

Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Fri 04 Jun 2021 08:26:16 BST
# gpg: using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211

* remotes/jasowang/tags/net-pull-request:
MAINTAINERS: Added eBPF maintainers information.
docs: Added eBPF documentation.
virtio-net: Added eBPF RSS to virtio-net.
ebpf: Added eBPF RSS loader.
ebpf: Added eBPF RSS program.
net: Added SetSteeringEBPF method for NetClientState.
net/tap: Added TUNSETSTEERINGEBPF code.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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net/tap: Added TUNSETSTEERINGEBPF code.

Additional code that will be used for eBPF setting steering routine.

Signed-off-by: Andrew Melnychenko <andrew@daynix.com>
Signed-off-by: Jason Wang <jasowan

net/tap: Added TUNSETSTEERINGEBPF code.

Additional code that will be used for eBPF setting steering routine.

Signed-off-by: Andrew Melnychenko <andrew@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>

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Clean up decorations and whitespace around header guards

Cleaned up with scripts/clean-header-guards.pl.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Richard Henderson <rth@twi

Clean up decorations and whitespace around header guards

Cleaned up with scripts/clean-header-guards.pl.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>

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all: Clean up includes

Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Signed-off-b

all: Clean up includes

Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>

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tap: add VNET_LE/VNET_BE operations

The linux tap and macvtap backends can be told to parse vnet headers
according to little or big endian. This is done through the TUNSETVNETLE
and TUNSETVNETBE ioc

tap: add VNET_LE/VNET_BE operations

The linux tap and macvtap backends can be told to parse vnet headers
according to little or big endian. This is done through the TUNSETVNETLE
and TUNSETVNETBE ioctls.

This patch brings all the plumbing for QEMU to use these APIs.

Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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tap: set IFF_ONE_QUEUE per default

historically the kernel queues packets two times. once
at the device and second in qdisc. this is believed to cause
interface stalls if one of these queues overrun

tap: set IFF_ONE_QUEUE per default

historically the kernel queues packets two times. once
at the device and second in qdisc. this is believed to cause
interface stalls if one of these queues overruns.

setting IFF_ONE_QUEUE is the default in kernels >= 3.8. the
flag is ignored since then. see kernel commit
5d097109257c03a71845729f8db6b5770c4bbedc

Signed-off-by: Peter Lieven <pl@kamp.de>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

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tap: import linux multiqueue constants

Import multiqueue constants from if_tun.h from 3.8-rc3. A new ifr flag
IFF_MULTI_QUEUE were introduced to create a multiqueue backend by calling
TUNSETIFF with

tap: import linux multiqueue constants

Import multiqueue constants from if_tun.h from 3.8-rc3. A new ifr flag
IFF_MULTI_QUEUE were introduced to create a multiqueue backend by calling
TUNSETIFF with the this flag and with the same interface name many times.

A new ioctl TUNSETQUEUE were introduced. When doing this ioctl with
IFF_DETACH_QUEUE, the queue were disabled in the linux kernel. When doing this
ioctl with IFF_ATTACH_QUEUE, the queue were enabled in the linux kernel.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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net: reorganize headers

Move public headers to include/net, and leave private headers in net/.
Put the virtio headers in include/net/tap.h, removing the multiple copies
that existed. Leave include/

net: reorganize headers

Move public headers to include/net, and leave private headers in net/.
Put the virtio headers in include/net/tap.h, removing the multiple copies
that existed. Leave include/net/tap.h as the interface for NICs, and
net/tap_int.h as the interface for OS-specific parts of the tap backend.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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tap: add APIs for vnet header length

Add APIs to control host header length. First user
will be vhost-net.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

tap: generalize code for different vnet header len

Make host vnet header length a structure field in
preparation for using this support in linux kernel.

Signed-off-by: Michael S. Tsirkin <mst@redha

tap: generalize code for different vnet header len

Make host vnet header length a structure field in
preparation for using this support in linux kernel.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

show more ...

Unbreak Linux build

commit 71f4effce79ec0485586963ea764f2c212c72f26
Author: Alexander Graf <agraf@suse.de>
Date: Fri Oct 30 22:27:00 2009 +0100

Unbreak tap compilation on OS X

Broke

Unbreak Linux build

commit 71f4effce79ec0485586963ea764f2c212c72f26
Author: Alexander Graf <agraf@suse.de>
Date: Fri Oct 30 22:27:00 2009 +0100

Unbreak tap compilation on OS X

Broke the build on Linux due to a bad #if guard

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

show more ...

Unbreak tap compilation on OS X

Currently compiling the tap sources breaks on Mac OS X. This is because of:

1) tap-linux.h requiring Linux includes
2) typos
3) missing #includes

This patch a

Unbreak tap compilation on OS X

Currently compiling the tap sources breaks on Mac OS X. This is because of:

1) tap-linux.h requiring Linux includes
2) typos
3) missing #includes

This patch adds what's necessary to compile tap happily on Mac OS X.
I haven't tested if using tap actually works, but I don't think that's a
major issue as that code was probably seriously untested before already.

I didn't split the patch, because it's only a few lines of code and
splitting is probably not worth the effort here.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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net: move tap-linux.h under net/

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

Enable UFO on virtio-net and tap devices

Enable UFO on the host tap device if supported and allow setting UFO
on virtio-net in the guest.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-of

Enable UFO on virtio-net and tap devices

Enable UFO on the host tap device if supported and allow setting UFO
on virtio-net in the guest.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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net: add tap_set_offload()

This API allows virtio-net to enable various offload features on a
tap interface - e.g. to tell the host kernel it can pass up partial
checksums to userspace.

Signed-off-

net: add tap_set_offload()

This API allows virtio-net to enable various offload features on a
tap interface - e.g. to tell the host kernel it can pass up partial
checksums to userspace.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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net: enable IFF_VNET_HDR on tap fds if available

For now, we just add an empty header before writing and strip the header
after reading.

We really only want IFF_VNET_HDR when virtio_net is using it

net: enable IFF_VNET_HDR on tap fds if available

For now, we just add an empty header before writing and strip the header
after reading.

We really only want IFF_VNET_HDR when virtio_net is using it, but it
would significantly complicate matters to try and do that. There should
be little or no performance impact with always adding headers.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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net: import linux tap ioctl definitions

Making features dependent on the availability of newer versions if_tun.h
is going to get seriously clumsy, so let's just import the definitions
we need. It's

net: import linux tap ioctl definitions

Making features dependent on the availability of newer versions if_tun.h
is going to get seriously clumsy, so let's just import the definitions
we need. It's only a small handful.

If and when we're comfortable depending on 2.6.30 headers, we can remove
this again.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

show more ...