Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 3 Dec 2021 19:41:19 +0100
From:      Hans Petter Selasky <hps@selasky.org>
To:        Daniel O'Connor <darius@dons.net.au>, freebsd-usb@freebsd.org
Subject:   Re: Poor USB performance on ASUS 520 motherboard (no IRQ?)
Message-ID:  <abf22f4f-e8fc-86c3-e463-d98d4353591a@selasky.org>
In-Reply-To: <A4A84F57-67F2-4402-B81C-9742F2C2B218@dons.net.au>
References:  <A4A84F57-67F2-4402-B81C-9742F2C2B218@dons.net.au>

next in thread | previous in thread | raw e-mail | index | archive | help
On 11/24/21 23:33, Daniel O'Connor wrote:
> I found that the Gigabyte GA-A320M-H one works fine but the ASUS A520M-A/CSM one is significantly slower for tests where there are many back and forth messages (streaming data seems fine).

Hi,

There is a register in the XHCI PCI area, to set the IRQ latency. You 
may want to check the PCI IDs towards Linux if these chips require some 
kind of special quirks.

--HPS



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?abf22f4f-e8fc-86c3-e463-d98d4353591a>