From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Monjalon <thomas@monjalon.net>
Subject: Re: [PATCH] ethdev: increase flow type limit from 32 to
	64
Date: Wed, 10 Jan 2018 14:50:23 +0100
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Cc: dev@dpdk.org, Adrien Mazarguil <adrien.mazarguil@6wind.com>, "Wu,
 Jingjing" <jingjing.wu@intel.com>, "Xing, Beilei" <beilei.xing@intel.com>,
 "johndale@cisco.com" <johndale@cisco.com>,
 "neescoba@cisco.com" <neescoba@cisco.com>,
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 "yskoh@mellanox.com" <yskoh@mellanox.com>, "Lu,
 Wenzhuo" <wenzhuo.lu@intel.com>, "Ananyev,
 Konstantin" <konstantin.ananyev@intel.com>, "Chilikin,
 Andrey" <andrey.chilikin@intel.com>
To: "Rybalchenko, Kirill" <kirill.rybalchenko@intel.com>
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Hi,

09/01/2018 16:16, Rybalchenko, Kirill:
> From: Adrien Mazarguil [mailto:adrien.mazarguil@6wind.com]
> > On Mon, Nov 27, 2017 at 12:29:47PM +0000, Kirill Rybalchenko wrote:
> > > Increase the internal limit for flow types from 32 to 64 to support
> > > future flow type extensions.
> > > Change type of variables from uint32_t[] to uint64_t[]:
> > >   rte_eth_fdir_info.flow_types_mask
> > >   rte_eth_hash_global_conf.sym_hash_enable_mask
> > >   rte_eth_hash_global_conf.valid_bit_mask
> > >
> > > This modification affects the following components:
> > >   net/i40e
> > >   net/enic
> > >   net/mlx5
> > >   net/ixgbe
> > >   app/testpmd
> > >
> > > Signed-off-by: Kirill Rybalchenko <kirill.rybalchenko@intel.com>
> > 
> > Can you elaborate a bit on the need for these changes?
> > Have you considered implementing those future extensions through
> > rte_flow instead?
> 
> Hi Adrien, this is not a new feature but rather fix of existing limitation.
> In current implementation the symmetric hash mask and flow mask are
> represented by 32-bit variable, while hardware bitmask has 64 bits.
> Unfortunately, this modification changes ABI of the library as it changes size
> of rte_eth_fdir_info structure. All related PMDs (listed above) had to be modified
> accordingly.  

This ABI change is not announced.
Unfortunately it will have to wait the release 18.05.