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Date:   Wed, 20 May 2020 10:43:09 -0700
From:   Andre Guedes <andre.guedes@...el.com>
To:     Jakub Kicinski <kuba@...nel.org>,
        Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org, nhorman@...hat.com,
        sassmann@...hat.com
Subject: Re: [net-next 00/14][pull request] 1GbE Intel Wired LAN Driver Updates 2020-05-19

Hi Jakub,

Quoting Jakub Kicinski (2020-05-19 19:00:26)
> On Tue, 19 May 2020 17:04:05 -0700 Jeff Kirsher wrote:
> > This series contains updates to igc only.
> > 
> > Sasha cleans up the igc driver code that is not used or needed.
> > 
> > Vitaly cleans up driver code that was used to support Virtualization on
> > a device that is not supported by igc, so remove the dead code.
> > 
> > Andre renames a few macros to align with register and field names
> > described in the data sheet.  Also adds the VLAN Priority Queue Fliter
> > and EType Queue Filter registers to the list of registers dumped by
> > igc_get_regs().  Added additional debug messages and updated return codes
> > for unsupported features.  Refactored the VLAN priority filtering code to
> > move the core logic into igc_main.c.  Cleaned up duplicate code and
> > useless code.
> 
> No automated warnings :)
> 
> It's a little strange how both TCI and ETYPE filters take the queue ID.
> Looking at the code it's not immediately clear which one take
> precedence. Can I install two rules for the same TCI and different ETYPE
> or vice versa?

Although the driver currently accepts such rules, they don't work as expected
(as you probably noticed already). Jeff has already a patch in his queue
fixing this issue.

And just clarifying, ETYPE filters precede VLAN priority filters.

Regards,

Andre

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