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From: "Daniel Glöckner" <daniel-gl@gmx.net>
To: Trent Piepho <xyzzy@speakeasy.org>
Cc: Linux and Kernel Video <video4linux-list@redhat.com>,
	v4l-dvb maintainer list <v4l-dvb-maintainer@linuxtv.org>,
	Jean Delvare <jdelvare@suse.de>
Subject: Re: [v4l-dvb-maintainer] bttv driver questions
Date: Sat, 30 Aug 2008 02:10:38 +0200	[thread overview]
Message-ID: <20080830001038.GA609@daniel.bse> (raw)
In-Reply-To: <Pine.LNX.4.58.0808291517030.24305@shell4.speakeasy.net>

On Fri, Aug 29, 2008 at 03:23:16PM -0700, Trent Piepho wrote:
> Or get something like viewcast's multi-bttv cards that use a PCI to PCI-E
> bridge.

The DVC-5215 card Jean mentioned in his first post is a PCIe card.
The bridge visible on the card must be a TI XIO2000A with external
PCI arbiter. It allows to tweak some QoS parameters for PCIe traffic
that might be helpful.

Btw., for cards with PCI-PCI bridge the latency counter of the bridge
on the main bus should be set to a high value to give it an advantage
to flush its buffers.

  Daniel

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  reply	other threads:[~2008-08-30  0:11 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <200808251445.22005.jdelvare@suse.de>
2008-08-26  0:40 ` [v4l-dvb-maintainer] bttv driver questions Andy Walls
2008-08-26 23:29   ` Daniel Glöckner
2008-08-27  2:20     ` Trent Piepho
2008-08-27  2:59       ` Robert William Fuller
2008-08-28 19:43         ` Trent Piepho
2008-08-27  3:45       ` Andy Walls
2008-08-28 19:48         ` Trent Piepho
     [not found]     ` <200808281611.38241.jdelvare@suse.de>
2008-08-28 20:20       ` Daniel Glöckner
2008-08-28 21:42         ` hermann pitton
     [not found]         ` <200808301201.47561.jdelvare@suse.de>
2008-08-30 15:12           ` Daniel Glöckner
2008-08-31 16:37             ` Andy Walls
     [not found]             ` <200809011144.54233.jdelvare@suse.de>
2008-09-01 12:35               ` Daniel Glöckner
     [not found]                 ` <200809012126.06532.jdelvare@suse.de>
2008-09-01 22:54                   ` Daniel Glöckner
     [not found]                     ` <200809021109.31007.jdelvare@suse.de>
     [not found]                       ` <200809021305.12318.jdelvare@suse.de>
2008-09-03 22:29                         ` Daniel Glöckner
     [not found]                           ` <200809051436.18549.jdelvare@suse.de>
2008-09-05 15:51                             ` Daniel Glöckner
2008-09-05 19:16                       ` [v4l-dvb-maintainer] " Trent Piepho
     [not found]   ` <200808281658.28151.jdelvare@suse.de>
2008-08-29 12:09     ` Andy Walls
2008-08-29 22:23       ` Trent Piepho
2008-08-30  0:10         ` Daniel Glöckner [this message]
     [not found]           ` <200808300954.19361.jdelvare@suse.de>
2008-08-30 16:44             ` Daniel Glöckner

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