Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 01 Oct 2015 01:07:38 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-net@FreeBSD.org
Subject:   [Bug 203445] Receive side scaling (RSS) for more than 16 queues not working in "ixl" driver
Message-ID:  <bug-203445-2472-Z8OdUEEIKK@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-203445-2472@https.bugs.freebsd.org/bugzilla/>
References:  <bug-203445-2472@https.bugs.freebsd.org/bugzilla/>

next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203445

--- Comment #1 from Eric Joyner <erj@freebsd.org> ---
So it looks like the hash is being used to index into the HLUT, but the
resulting queue is then mod 16.

To illustrate:

HLUT(45): 0x24252627 (where bits 21:16 contain LUT entry 4*45+2) and a packet
received on queue 5 has a hash of 0xa33600b6 in its RX descriptor. According to
the HLUT, it should really have gone to queue 37.

This is really odd.

-- 
You are receiving this mail because:
You are the assignee for the bug.



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-203445-2472-Z8OdUEEIKK>