ixgbe and igb - how many queues?

Wed Jul 16 00:49:00 UTC 2014

82598, 82599, X520, and X540 can have up to 64 Tx/Rx queues (1 per CPU), but are limited to 16 RSS queues. 
For igb it varies, depending on HW. I can put together a list.

Jeff

-----Original Message-----
From: owner-freebsd-net at freebsd.org [mailto:owner-freebsd-net at freebsd.org] On Behalf Of Ryan Stone
Sent: Tuesday, July 15, 2014 5:04 PM
To: Adrian Chadd
Cc: FreeBSD Net; freebsd-arch at 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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