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From: Kevin Traynor <ktraynor@redhat.com>
To: Wisam Monther <wisamm@mellanox.com>,
	"jingjing.wu@intel.com" <jingjing.wu@intel.com>,
	"wenzhuo.lu@intel.com" <wenzhuo.lu@intel.com>,
	Thomas Monjalon <thomas@monjalon.net>
Cc: Raslan Darawsheh <rasland@mellanox.com>,
	"dev@dpdk.org" <dev@dpdk.org>,
	Shahaf Shuler <shahafs@mellanox.com>
Subject: Re: [PATCH 1/2] app/testpmd: add custom topology command
Date: Wed, 16 May 2018 13:40:34 +0100	[thread overview]
Message-ID: <fa034cec-a658-064f-5c19-c6892b379f20@redhat.com> (raw)
In-Reply-To: <AM4PR05MB342746EE36B25F46DCF6AB99A9930@AM4PR05MB3427.eurprd05.prod.outlook.com>

On 05/15/2018 03:05 PM, Wisam Monther wrote:
> Hey Kevin,
> 
> What if I have 10 ports and want all 9 ports to forward packets to port
> 0, this cannot done in paired.
> But with this topo the user can overwrite the topo.
> E.g:
> - Set custom-topo 1 0
> Will make those paired and those two as active only.
> 
> - set custom-topo 2 0
> Will make those two as paired, but still port one will forward packets
> to 0.
> And the active ports will be 3 ports (0,1,2)
> And so on...
> With this topo you can create your own topo. (Mixed between all topos or
> even non-pattern topo for any usage)
> In my case its needed for representors and virtio.
> 
> Any traffic coming from representors/vhost (from VM) need to be
> forwarded from PF/phy port to the wire.
> 

Thanks for sharing the use case.

Will it be an issue that multiple cores may be sending to the same TxQ?
I didn't check to see if there is locking provided in the app.

> This new topo is useful for such cases.
> 
> BRs,
> Wisam jaddo
> 

  reply	other threads:[~2018-05-16 12:40 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-15 14:05 [PATCH 1/2] app/testpmd: add custom topology command Wisam Monther
2018-05-16 12:40 ` Kevin Traynor [this message]
2018-05-16 12:43   ` Wisam Monther
  -- strict thread matches above, loose matches on Subject: below --
2018-05-09 12:34 [PATCH 0/2] app/testpmd: introduce new commands in forward topology Wisam Jaddo
2018-05-09 12:34 ` [PATCH 1/2] app/testpmd: add custom topology command Wisam Jaddo
2018-05-15 13:15   ` Kevin Traynor

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