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From: Thomas Monjalon <thomas@monjalon.net>
To: dev@dpdk.org
Cc: ferruh.yigit@intel.com, kevin.traynor@redhat.com,
	bruce.richardson@intel.com, hemant.agrawal@nxp.com,
	jerinj@marvell.com, olivier.matz@6wind.com,
	maxime.coquelin@redhat.com, stephen@networkplumber.org
Subject: [dpdk-dev] KNI alternatives
Date: Wed, 13 Jan 2021 18:06:25 +0100	[thread overview]
Message-ID: <1699913.2mAdEQRYyP@thomas> (raw)

Hi,

As discussed today in the techboard meeting, KNI has probably
better alternatives today without using an out-of-tree module.
Virtio-user is a good candidate to replace KNI.
What is the performance of TAP?
Is there a way to leverage af_packet, af_xdp, or even pcap interfaces?

In order to avoid using the KNI out-of-tree module,
we should make the librte_kni compatible with an other interface.
The big plan is then to move the KNI module out of the main DPDK repo,
as we did for igb_uio.

The first step of this plan might be to document pros & cons
of the KNI alternatives inside the KNI documentation:
	https://doc.dpdk.org/guides/prog_guide/kernel_nic_interface.html

As a start, this doc should be better referenced:
	https://doc.dpdk.org/guides/howto/virtio_user_as_exceptional_path.html

Note: I won't do this update myself, so feel free to step up!
Thanks



             reply	other threads:[~2021-01-13 17:06 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-13 17:06 Thomas Monjalon [this message]
2021-01-13 17:10 ` [dpdk-dev] KNI alternatives Stephen Hemminger
2021-01-13 18:17   ` Igor Ryzhov
2021-01-13 18:45     ` Thomas Monjalon
2021-01-13 19:53       ` Igor Ryzhov
2021-01-14  5:50         ` Stephen Hemminger

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