From: Mark Lord <liml@rtr.ca>
To: Tejun Heo <tj@kernel.org>
Cc: Jeff Garzik <jgarzik@pobox.com>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
IDE/ATA development list <linux-ide@vger.kernel.org>
Subject: Re: [PATCH] libata-core More robust parsing for multi_count(v5)
Date: Fri, 20 Mar 2009 09:13:52 -0400 [thread overview]
Message-ID: <49C39690.6090802@rtr.ca> (raw)
In-Reply-To: <49C2D642.90706@kernel.org>
Tejun,
I need a way to limit the multi_count to a specific maximum
value for sata_mv. ISTR that some PATA chips may also have
an upper hardware limit on multi_count.
Generally, "8" is safe for all chipsets. Going above that
requires knowledge of what the chipset can tolerate.
How about a u8 multi_count_max field in the ata_host struct?
Use 0xff for "multi_count not allowed", and anything else
in there as an upper limit for the chipset.
???
next prev parent reply other threads:[~2009-03-20 13:14 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-18 14:26 [PATCH] libata-core Use more robust parsing for multi_count Mark Lord
2009-03-18 14:32 ` Alan Cox
2009-03-18 15:06 ` Mark Lord
2009-03-18 15:13 ` Mark Lord
2009-03-18 17:09 ` Alan Cox
2009-03-18 15:58 ` Mark Lord
2009-03-18 16:18 ` [PATCH] libata-core More robust parsing for multi_count(v3) Mark Lord
2009-03-18 16:24 ` Mark Lord
2009-03-19 0:23 ` Tejun Heo
2009-03-19 0:25 ` Tejun Heo
2009-03-19 17:30 ` [PATCH] libata-core More robust parsing for multi_count(v4) Mark Lord
2009-03-19 17:32 ` [PATCH] libata-core More robust parsing for multi_count(v5) Mark Lord
2009-03-19 23:33 ` Tejun Heo
2009-03-20 3:37 ` Mark Lord
2009-03-20 13:13 ` Mark Lord [this message]
2009-03-20 13:14 ` Mark Lord
2009-03-20 14:07 ` Alan Cox
2009-03-20 15:36 ` Mark Lord
2009-03-20 23:14 ` Tejun Heo
2009-03-21 0:54 ` Jeff Garzik
2009-03-21 2:17 ` Tejun Heo
2009-03-21 13:54 ` Mark Lord
2009-03-21 14:02 ` Alan Cox
2009-03-21 14:59 ` Mark Lord
2009-03-20 13:38 ` Alan Cox
2009-04-12 15:10 ` Mark Lord
2009-04-12 15:18 ` Alan Cox
2009-04-12 15:31 ` Jeff Garzik
2009-03-25 2:40 ` Jeff Garzik
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