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From: Thomas Monjalon <thomas@monjalon.net>
To: Matan Azrad <matan@mellanox.com>
Cc: stable@dpdk.org, Adrien Mazarguil <adrien.mazarguil@6wind.com>,
	Keith Wiles <keith.wiles@intel.com>,
	Ophir Munk <ophirmu@mellanox.com>,
	dev@dpdk.org
Subject: Re: [dpdk-stable] [PATCH v2] net/tap: fix zeroed flow mask configurations
Date: Tue, 07 Aug 2018 16:01:11 +0200	[thread overview]
Message-ID: <7481994.pu8tkS1Bg6@xps> (raw)
In-Reply-To: <20180806131626.GW5211@6wind.com>

06/08/2018 15:16, Adrien Mazarguil:
> On Mon, Aug 06, 2018 at 10:58:47AM +0000, Matan Azrad 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>
> > ---
> >  drivers/net/tap/tap_flow.c | 18 +++++++++---------
> >  1 file changed, 9 insertions(+), 9 deletions(-)
> > 
> > V2:
> > Address Adrien comments to fix also the spec=0 check.
> 
> Thanks,
> 
> Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>

Applied, thanks

      reply	other threads:[~2018-08-07 14:01 UTC|newest]

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

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