net/vdev_netvsc: do not reference devargs list

This list should not be used by drivers.
Use the public API instead.

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: Thomas Monjalon <t

net/vdev_netvsc: do not reference devargs list

This list should not be used by drivers.
Use the public API instead.

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>

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align SPDX Mellanox copyrights

Aligning Mellanox SPDX copyrights to a single format.
In addition replace to SPDX licence files which were missed.

Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>

align SPDX Mellanox copyrights

Aligning Mellanox SPDX copyrights to a single format.
In addition replace to SPDX licence files which were missed.

Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>

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net/vdev_netvsc: fix routed devices probing

NetVSC netdevices which are already routed should not be probed because
they are used for management purposes by the HyperV.

The corrupted code got the r

net/vdev_netvsc: fix routed devices probing

NetVSC netdevices which are already routed should not be probed because
they are used for management purposes by the HyperV.

The corrupted code got the routed devices from the system file
/proc/net/route and wrongly parsed only the odd lines, so devices which
their routes were in even lines, were considered as unrouted devices
and were probed.

Use linux netlink lib to detect the routed NetVSC devices instead of
file parsing.

Fixes: 31182fadfb21 ("net/vdev_netvsc: skip routed netvsc probing")
Cc: stable@dpdk.org

Suggested-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Matan Azrad <matan@mellanox.com>

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net/vdev_netvsc: fix device detection error check

The vdev_netvsc driver does periodic detection of PCI devices matched
to the netvsc existed interfaces.

When it finds a match, the PCI address is w

net/vdev_netvsc: fix device detection error check

The vdev_netvsc driver does periodic detection of PCI devices matched
to the netvsc existed interfaces.

When it finds a match, the PCI address is written to the pipe of the
associated fail-safe PMD instance and a positive value is returned to
the periodic check which is wrongly considered as error.

Change the check to consider only a negative value as error.

Fixes: e7dc5d7becc5 ("net/vdev_netvsc: implement core functionality")

Signed-off-by: Matan Azrad <matan@mellanox.com>

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net/vdev_netvsc: add automatic probing

Using DPDK in Hyper-V VM systems requires vdev_netvsc driver to pair
the NetVSC netdev device with the same MAC address PCI device by
fail-safe PMD.

Add vdev_

net/vdev_netvsc: add automatic probing

Using DPDK in Hyper-V VM systems requires vdev_netvsc driver to pair
the NetVSC netdev device with the same MAC address PCI device by
fail-safe PMD.

Add vdev_netvsc custom scan in vdev bus to allow automatic probing in
Hyper-V VM systems unless it was already specified by command line.

Add "ignore" parameter to disable this auto-detection.

Signed-off-by: Matan Azrad <matan@mellanox.com>

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net/vdev_netvsc: add force parameter

This parameter allows specifying any non-NetVSC interface or routed
NetVSC interfaces to use with tap sub-devices for development purposes.

Signed-off-by: Adrie

net/vdev_netvsc: add force parameter

This parameter allows specifying any non-NetVSC interface or routed
NetVSC interfaces to use with tap sub-devices for development purposes.

Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Signed-off-by: Matan Azrad <matan@mellanox.com>

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net/vdev_netvsc: skip routed netvsc probing

NetVSC netdevices which are already routed should not be probed because
they are used for management purposes by the HyperV.

prevent routed netvsc device

net/vdev_netvsc: skip routed netvsc probing

NetVSC netdevices which are already routed should not be probed because
they are used for management purposes by the HyperV.

prevent routed netvsc devices probing.

Signed-off-by: Raslan Darawsheh <rasland@mellanox.com>
Signed-off-by: Matan Azrad <matan@mellanox.com>

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net/vdev_netvsc: implement core functionality

As described in more details in the attached documentation (see patch
contents), this virtual device driver manages NetVSC interfaces in virtual
machine

net/vdev_netvsc: implement core functionality

As described in more details in the attached documentation (see patch
contents), this virtual device driver manages NetVSC interfaces in virtual
machines hosted by Hyper-V/Azure platforms.

This driver does not manage traffic nor Ethernet devices directly; it acts
as a thin configuration layer that automatically instantiates and controls
fail-safe PMD instances combining tap and PCI sub-devices, so that each
NetVSC interface is exposed as a single consolidated port to DPDK
applications.

PCI sub-devices being hot-pluggable (e.g. during VM migration),
applications automatically benefit from increased throughput when present
and automatic fallback on NetVSC otherwise without interruption thanks to
fail-safe's hot-plug handling.

Once initialized, the sole job of the vdev_netvsc driver is to regularly
scan for PCI devices to associate with NetVSC interfaces and feed their
addresses to corresponding fail-safe instances.

Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Signed-off-by: Matan Azrad <matan@mellanox.com>

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net/vdev_netvsc: introduce Hyper-V platform driver

This patch lays the groundwork for this driver (draft documentation,
copyright notices, code base skeleton and build system hooks). While it can
be

net/vdev_netvsc: introduce Hyper-V platform driver

This patch lays the groundwork for this driver (draft documentation,
copyright notices, code base skeleton and build system hooks). While it can
be successfully compiled and invoked, it's an empty shell at this stage.

Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Signed-off-by: Matan Azrad <matan@mellanox.com>

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