Re: [dpdk-dev] [PATCH v5 1/5] net/virtio: add initial RSS support

["Xia, Chenbo" <chenbo.xia@intel.com>]

> -----Original Message-----
> From: Maxime Coquelin <maxime.coquelin@redhat.com>
> Sent: Monday, October 18, 2021 6:21 PM
> To: dev@dpdk.org; Xia, Chenbo <chenbo.xia@intel.com>; amorenoz@redhat.com;
> david.marchand@redhat.com; andrew.rybchenko@oktetlabs.ru; Yigit, Ferruh
> <ferruh.yigit@intel.com>; michaelba@nvidia.com; viacheslavo@nvidia.com; Li,
> Xiaoyun <xiaoyun.li@intel.com>
> Cc: nelio.laranjeiro@6wind.com; yvugenfi@redhat.com; ybendito@redhat.com;
> Maxime Coquelin <maxime.coquelin@redhat.com>
> Subject: [PATCH v5 1/5] net/virtio: add initial RSS support
> 
> Provide the capability to update the hash key, hash types
> and RETA table on the fly (without needing to stop/start
> the device). However, the key length and the number of RETA
> entries are fixed to 40B and 128 entries respectively. This
> is done in order to simplify the design, but may be
> revisited later as the Virtio spec provides this
> flexibility.
> 
> Note that only VIRTIO_NET_F_RSS support is implemented,
> VIRTIO_NET_F_HASH_REPORT, which would enable reporting the
> packet RSS hash calculated by the device into mbuf.rss, is
> not yet supported.
> 
> Regarding the default RSS configuration, it has been
> chosen to use the default Intel ixgbe key as default key,
> and default RETA is a simple modulo between the hash and
> the number of Rx queues.
> 
> Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
> 2.31.1

Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>

And I think the reported issue in patchwork is not related with
this series.