Messages in this thread | | | Date | Mon, 15 Jan 2007 08:52:56 -0500 | From | Jeff Garzik <> | Subject | Re: Proposed changes for libata speed handling |
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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.
Jeff
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