From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: dev@dpdk.org, jasowang@redhat.com, chenbo.xia@intel.com,
david.marchand@redhat.com, olivier.matz@6wind.com,
wenwux.ma@intel.com, yuying.zhang@intel.com,
aman.deep.singh@intel.com
Subject: Re: [PATCH v2 0/6] Vhost checksum offload improvements
Date: Fri, 17 Jun 2022 16:06:18 +0200 [thread overview]
Message-ID: <4867138f-8520-ff15-ac55-ec59d29e2786@redhat.com> (raw)
In-Reply-To: <20220608124946.102623-1-maxime.coquelin@redhat.com>
On 6/8/22 14:49, Maxime Coquelin wrote:
> This series aims at improving Vhost checksum offloading
> support.
>
> The first patch reverts overwritting MAC address in
> testpmd CSUM forward mode. This is required to be able to
> test checksum offloading with real traffic. MAC forwarding
> mode should be used if the MAC addresses need to be
> changed.
>
> Second patch is a Vhost library fix to be compliant with
> the Virtio specification, which requires that the
> pseudo-header checksum is being set by the device when
> offloading the checksum to the guest.
>
> Third patch enables the compliant offloading mode of Vhost
> library in Vhost PMD by default, since the legacy mode
> violates the mbuf API by setting Tx flags in the receive
> path. A new devarg is introduced for application willing
> to use the legacy mode.
>
> Fourth patch is just a small cleanup to represent a boolean
> value as a boolean.
>
> The two last patches introduces compatibility layers
> that performs checksum in SW when the ethdev and Virtio
> features are not aligned.
>
> Note that the two last patches are not tagged as fixes
> because they rely on the new compliant offload mode of
> Vhost library, and so would casue an ABI breakage if
> backported.
>
> With this series, it is now possible to perform IO
> forwarding between a vhost-user port and a Vitio-user
> with kernel backend port even if the guest has negotiated
> VIRTIO_NET_F_CSUM.
>
> With csum forward mode, it now works whathever the
> offloading configuration set either on Virtio or Ethdev
> sides.
>
> Changes in v2:
> ==============
> - Add the new devarg to validation array (Wenwu)
> - Fix typos in commit messages (Chenbo, checkpatch, Yuying)
>
> Maxime Coquelin (6):
> Revert "app/testpmd: modify mac in csum forwarding"
> vhost: fix missing enqueue pseudo-header calculation
> net/vhost: enable compliant offloading mode
> net/vhost: make VLAN stripping flag a boolean
> net/vhost: perform SW checksum in Rx path
> net/vhost: perform SW checksum in Tx path
>
> app/test-pmd/csumonly.c | 4 -
> doc/guides/nics/features/vhost.ini | 1 +
> doc/guides/nics/vhost.rst | 6 ++
> drivers/net/vhost/rte_eth_vhost.c | 167 ++++++++++++++++++++++++++++-
> lib/vhost/virtio_net.c | 10 ++
> 5 files changed, 180 insertions(+), 8 deletions(-)
>
Applied to dpdk-next-virtio/main.
Thanks,
Maxime
prev parent reply other threads:[~2022-06-17 14:06 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-08 12:49 Maxime Coquelin
2022-06-08 12:49 ` [PATCH v2 1/6] Revert "app/testpmd: modify mac in csum forwarding" Maxime Coquelin
2022-06-13 12:24 ` Singh, Aman Deep
2022-06-17 12:42 ` Maxime Coquelin
2022-06-08 12:49 ` [PATCH v2 2/6] vhost: fix missing enqueue pseudo-header calculation Maxime Coquelin
2022-06-08 12:49 ` [PATCH v2 3/6] net/vhost: enable compliant offloading mode Maxime Coquelin
2022-06-08 12:49 ` [PATCH v2 4/6] net/vhost: make VLAN stripping flag a boolean Maxime Coquelin
2022-06-08 12:49 ` [PATCH v2 5/6] net/vhost: perform SW checksum in Rx path Maxime Coquelin
2022-06-09 1:59 ` Xia, Chenbo
2022-06-10 3:49 ` Xia, Chenbo
2022-06-10 7:19 ` Jiang, Cheng1
2022-06-08 12:49 ` [PATCH v2 6/6] net/vhost: perform SW checksum in Tx path Maxime Coquelin
2022-06-09 2:26 ` Xia, Chenbo
2022-06-10 3:49 ` Xia, Chenbo
2022-06-10 7:31 ` Jiang, Cheng1
2022-06-10 3:50 ` Xia, Chenbo
2022-06-17 14:06 ` Maxime Coquelin [this message]
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