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From: "Wiles, Keith" <keith.wiles@intel.com>
To: Matan Azrad <matan@mellanox.com>
Cc: Ophir Munk <ophirmu@mellanox.com>, "dev@dpdk.org" <dev@dpdk.org>,
	"stable@dpdk.org" <stable@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH] net/tap: fix zeroed flow mask configurations
Date: Thu, 2 Aug 2018 12:03:23 +0000	[thread overview]
Message-ID: <E0CB2630-6BAF-46DF-82F1-769F0902A172@intel.com> (raw)
In-Reply-To: <1533205980-7874-1-git-send-email-matan@mellanox.com>



> On Aug 2, 2018, at 5:33 AM, Matan Azrad <matan@mellanox.com> wrote:
> 
> The rte_flow meaning of zero flow mask configuration is to match all
> the range of the item value.
> For example, the flow eth / ipv4 dst spec 1.2.3.4 dst mask 0.0.0.0
> should much all the ipv4 traffic from the rte_flow API perspective.
> 
> From some kernel perspectives the above rule means to ignore all the
> ipv4 traffic (e.g. Ubuntu 16.04, 4.15.10).
> 
> Due to the fact that the tap PMD should provide the rte_flow meaning,
> it is necessary to ignore the spec in case the mask is zero when it
> forwards such like flows to the kernel.
> So, the above rule should be translated to eth / ipv4 to get the
> correct meaning.
> 
> Ignore spec configurations when the mask is zero.
> 
> Fixes: de96fe68ae95 ("net/tap: add basic flow API patterns and actions")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Matan Azrad <matan@mellanox.com>

Acked-by: Keith Wiles<keith.wiles@intel.com>

Regards,
Keith

  reply	other threads:[~2018-08-02 12:04 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-02 10:33 Matan Azrad
2018-08-02 12:03 ` Wiles, Keith [this message]
2018-08-02 14:27 ` Adrien Mazarguil
2018-08-02 17:52   ` Matan Azrad
2018-08-03  8:20     ` Adrien Mazarguil
2018-08-05  6:10       ` Matan Azrad
2018-08-06  9:40         ` Adrien Mazarguil
2018-08-06  9:58           ` Matan Azrad
2018-08-06 10:58 ` [dpdk-dev] [PATCH v2] " Matan Azrad
2018-08-06 13:16   ` Adrien Mazarguil
2018-08-07 14:01     ` [dpdk-dev] [dpdk-stable] " Thomas Monjalon

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