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From: "Pieper, Jeffrey E" <jeffrey.e.pieper@intel.com>
To: Ryan Stone <rysto32@gmail.com>, Adrian Chadd <adrian@freebsd.org>
Subject: RE: ixgbe and igb - how many queues?
Thread-Topic: ixgbe and igb - how many queues?
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Date: Wed, 16 Jul 2014 00:47:50 +0000
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82598, 82599, X520, and X540 can have up to 64 Tx/Rx queues (1 per CPU), bu=
t are limited to 16 RSS queues.=20
For igb it varies, depending on HW. I can put together a list.

Jeff

-----Original Message-----
From: owner-freebsd-net@freebsd.org [mailto:owner-freebsd-net@freebsd.org] =
On Behalf Of Ryan Stone
Sent: Tuesday, July 15, 2014 5:04 PM
To: Adrian Chadd
Cc: FreeBSD Net; freebsd-arch@freebsd.org
Subject: Re: ixgbe and igb - how many queues?

The oldest hardware supported by the ixgbe driver is the 82598, which
supports up to 16 RSS queues (see Table 3-48 in the 82598 datasheet).
I believe that the 82599 and X520 are more capable.

I have no idea what the situation is on igb, as there seems to be a
lot more hardware supported by that driver and I don't work with the
1GB devices very much.
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