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From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: Matan Azrad <matan@nvidia.com>, dev@dpdk.org
Cc: thomas@monjalon.net, chenbo.xia@intel.com,
	Xueming Li <xuemingl@nvidia.com>
Subject: Re: [dpdk-dev] [PATCH v2] vdpa/mlx5: improve interrupt management
Date: Tue, 4 May 2021 10:29:00 +0200	[thread overview]
Message-ID: <f1cd0a12-c718-809b-3180-78d142316b17@redhat.com> (raw)
In-Reply-To: <20210502104510.3102095-1-matan@nvidia.com>



On 5/2/21 12:45 PM, Matan Azrad wrote:
> The driver should notify the guest for each traffic burst detected by CQ
> polling.
> 
> The CQ polling trigger is defined by `event_mode` device argument,
> either by busy polling on all the CQs or by blocked call to HW
> completion event using DevX channel.
> 
> Also, the polling event modes can move to blocked call when the
> traffic rate is low.
> 
> The current blocked call uses the EAL interrupt API suffering a lot
> of overhead in the API management and serve all the drivers and
> libraries using only single thread.
> 
> Use blocking FD of the DevX channel in order to do blocked call
> directly by the DevX channel FD mechanism.
> 
> Signed-off-by: Matan Azrad <matan@nvidia.com>
> Acked-by: Xueming Li <xuemingl@nvidia.com>
> ---
>  doc/guides/vdpadevs/mlx5.rst        |   8 +-
>  drivers/vdpa/mlx5/mlx5_vdpa.c       |   8 +-
>  drivers/vdpa/mlx5/mlx5_vdpa.h       |   8 +-
>  drivers/vdpa/mlx5/mlx5_vdpa_event.c | 304 +++++++++++-----------------
>  4 files changed, 130 insertions(+), 198 deletions(-)
> 
> v2:
> Rebased on top of latest updates by Thomas.
> 


Applied to dpdk-next-virtio/main.

Thanks,
Maxime


      parent reply	other threads:[~2021-05-04  8:29 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-18  9:13 [dpdk-dev] [PATCH] " Matan Azrad
2021-03-29 14:09 ` Maxime Coquelin
2021-04-07  6:49 ` Xia, Chenbo
2021-04-11  9:07   ` Thomas Monjalon
2021-04-29  9:48     ` Maxime Coquelin
2021-05-02 10:47       ` Matan Azrad
2021-05-02 10:45 ` [dpdk-dev] [PATCH v2] " Matan Azrad
2021-05-03 14:27   ` Maxime Coquelin
2021-05-04  8:29   ` Maxime Coquelin [this message]

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