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Date:      Tue, 26 May 2020 18:39:37 +0300
From:      Andriy Gapon <avg@FreeBSD.org>
To:        Hans Petter Selasky <hps@selasky.org>, FreeBSD Current <freebsd-current@freebsd.org>, Adrian Chadd <adrian@freebsd.org>
Subject:   Re: iflib and options RSS is a no go for igbX
Message-ID:  <05a7a9a4-a5a5-f186-caab-68f8cb5d9212@FreeBSD.org>
In-Reply-To: <3e491993-aa46-9e16-0105-b79cbee6b2a3@selasky.org>
References:  <3e491993-aa46-9e16-0105-b79cbee6b2a3@selasky.org>

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On 26/05/2020 12:03, Hans Petter Selasky wrote:
> Hi,
> 
> I just found a bug where outgoing TCP connections over igb0 doesn't work because
> likely the software computed hash is wrong, so the incoming packets get dropped
> because they are received on the wrong queue.
> 
> It is the management port, so I'm just using this hack for now:
> 
> dev.igb.0.iflib.override_nrxqs=1
> dev.igb.0.iflib.override_ntxqs=1

This is a very common problem in our drivers.
E.g., https://reviews.freebsd.org/D24733


-- 
Andriy Gapon



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