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From: Andrew Melnychenko <andrew@daynix.com>
To: netdev@vger.kernel.org,
	virtualization@lists.linux-foundation.org,
	linux-kernel@vger.kernel.org, davem@davemloft.net,
	kuba@kernel.org, jasowang@redhat.com, mst@redhat.com
Cc: yan@daynix.com, yuri.benditovich@daynix.com
Subject: [PATCH 0/4] RSS support for VirtioNet.
Date: Sun,  9 Jan 2022 23:06:55 +0200	[thread overview]
Message-ID: <20220109210659.2866740-1-andrew@daynix.com> (raw)

Virtio-net supports "hardware" RSS with toeplitz key.
Also, it allows receiving calculated hash in vheader
that may be used with RPS.
Added ethtools callbacks to manipulate RSS.

Technically hash calculation may be set only for
SRC+DST and SRC+DST+PORTSRC+PORTDST hashflows.
The completely disabling hash calculation for TCP or UDP
would disable hash calculation for IP.

RSS/RXHASH is disabled by default.

Changes since rfc:
* code refactored
* patches reformatted
* added feature validation

Andrew Melnychenko (4):
  drivers/net/virtio_net: Fixed padded vheader to use v1 with hash.
  drivers/net/virtio_net: Added basic RSS support.
  drivers/net/virtio_net: Added RSS hash report.
  drivers/net/virtio_net: Added RSS hash report control.

 drivers/net/virtio_net.c | 404 +++++++++++++++++++++++++++++++++++++--
 1 file changed, 390 insertions(+), 14 deletions(-)

-- 
2.34.1


WARNING: multiple messages have this Message-ID (diff)
From: Andrew Melnychenko <andrew@daynix.com>
To: netdev@vger.kernel.org,
	virtualization@lists.linux-foundation.org,
	linux-kernel@vger.kernel.org, davem@davemloft.net,
	kuba@kernel.org, jasowang@redhat.com, mst@redhat.com
Cc: yan@daynix.com, yuri.benditovich@daynix.com
Subject: [PATCH 0/4] RSS support for VirtioNet.
Date: Sun,  9 Jan 2022 23:06:55 +0200	[thread overview]
Message-ID: <20220109210659.2866740-1-andrew@daynix.com> (raw)

Virtio-net supports "hardware" RSS with toeplitz key.
Also, it allows receiving calculated hash in vheader
that may be used with RPS.
Added ethtools callbacks to manipulate RSS.

Technically hash calculation may be set only for
SRC+DST and SRC+DST+PORTSRC+PORTDST hashflows.
The completely disabling hash calculation for TCP or UDP
would disable hash calculation for IP.

RSS/RXHASH is disabled by default.

Changes since rfc:
* code refactored
* patches reformatted
* added feature validation

Andrew Melnychenko (4):
  drivers/net/virtio_net: Fixed padded vheader to use v1 with hash.
  drivers/net/virtio_net: Added basic RSS support.
  drivers/net/virtio_net: Added RSS hash report.
  drivers/net/virtio_net: Added RSS hash report control.

 drivers/net/virtio_net.c | 404 +++++++++++++++++++++++++++++++++++++--
 1 file changed, 390 insertions(+), 14 deletions(-)

-- 
2.34.1

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

             reply	other threads:[~2022-01-09 21:07 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-09 21:06 Andrew Melnychenko [this message]
2022-01-09 21:06 ` [PATCH 0/4] RSS support for VirtioNet Andrew Melnychenko
2022-01-09 21:06 ` [PATCH 1/4] drivers/net/virtio_net: Fixed padded vheader to use v1 with hash Andrew Melnychenko
2022-01-09 21:06   ` Andrew Melnychenko
2022-01-09 22:21   ` Jakub Kicinski
2022-01-09 21:06 ` [PATCH 2/4] drivers/net/virtio_net: Added basic RSS support Andrew Melnychenko
2022-01-09 21:06   ` Andrew Melnychenko
2022-01-11  3:44   ` Jason Wang
2022-01-11  3:44     ` Jason Wang
2022-01-11 12:00   ` Michael S. Tsirkin
2022-01-11 12:00     ` Michael S. Tsirkin
2022-01-17  7:49     ` Andrew Melnichenko
2022-01-17  7:49       ` Andrew Melnichenko
2022-01-09 21:06 ` [PATCH 3/4] drivers/net/virtio_net: Added RSS hash report Andrew Melnychenko
2022-01-09 21:06   ` Andrew Melnychenko
2022-01-11  4:05   ` Jason Wang
2022-01-11  4:05     ` Jason Wang
2022-01-17  7:57     ` Andrew Melnichenko
2022-01-17  7:57       ` Andrew Melnichenko
2022-01-09 21:06 ` [PATCH 4/4] drivers/net/virtio_net: Added RSS hash report control Andrew Melnychenko
2022-01-09 21:06   ` Andrew Melnychenko
2022-01-11  4:32   ` Jason Wang
2022-01-11  4:32     ` Jason Wang
2022-01-17  7:58     ` Andrew Melnichenko
2022-01-17  7:58       ` Andrew Melnichenko

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