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From: Jeff Garzik <>
To: Tejun Heo <>
Cc: Alan <>,,
Subject: Re: Proposed changes for libata speed handling
Date: Mon, 15 Jan 2007 08:52:56 -0500	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

BTW, for a solution to be complete, we need to halt all work on all 
other ports, when issuing SET FEATURES - XFER MODE.  On SiI and Promise 
controllers, possibly others, the command is snooped and side effects 
such as register setting occur.

Long standing to-do.  Currently we hack around this by serializing the 
bus probe, and preventing people from issuing SET FEATURES - XFER MODE 
from userspace.


      reply	other threads:[~2007-01-15 13:53 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-12 13:53 Alan
2007-01-13  2:02 ` Tejun Heo
2007-01-13 10:01   ` Alan
2007-01-15  3:09     ` Tejun Heo
2007-01-15 13:52       ` Jeff Garzik [this message]

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