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Date: Thu, 27 Mar 2014 09:23:52 -0300
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Subject: Re: 9.2 ixgbe tx queue hang
From: Christopher Forgeron <csforgeron@gmail.com>
To: Rick Macklem <rmacklem@uoguelph.ca>
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Cc: FreeBSD Net <freebsd-net@freebsd.org>,
 Garrett Wollman <wollman@freebsd.org>, Andre Oppermann <andre@freebsd.org>,
 Jack Vogel <jfvogel@gmail.com>, Markus Gebert <markus.gebert@hostpoint.ch>
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On Wed, Mar 26, 2014 at 9:35 PM, Rick Macklem <rmacklem@uoguelph.ca> wrote:

>
>
> I've suggested in the other thread what you suggested in a recent
> post...ie. to change the default, at least until the propagation
> of driver set values is resolved.
>
> rick
>

I wonder if we need to worry about propagating values up from the sub-if's
- Setting the default in if.c means this is set for all if's, and it's a
simple 1 line code change.  If a specific 'if' needs a different value, it
can be set before ether_attach() is called.

I'm more concerned with the equation we use to calculate if_hw_tsomax - Are
we considering the right variables? Are we thinking on the wrong OSI layer
for headers?