From: Jeff Garzik <jgarzik@pobox.com>
To: Mark Lord <liml@rtr.ca>
Cc: Tejun Heo <htejun@gmail.com>,
IDE/ATA development list <linux-ide@vger.kernel.org>,
Saeed Bishara <saeed@marvell.com>
Subject: Re: new ata_port_operations for .pmp_{read,write} ?
Date: Sun, 24 Feb 2008 23:56:04 -0500 [thread overview]
Message-ID: <47C24A64.6060907@pobox.com> (raw)
In-Reply-To: <47C248C8.9090409@rtr.ca>
To repeat myself from threads past...
In particular with the Marvell 6440 (SATA/SAS, drivers/scsi/mvsas.c)
when SATA PMP support is completed, we will want to look at passing
things other than normal ATA commands via ->qc_issue.
Although selection isn't necessarily, talking to a PMP is fundamentally
an asynchronous, event-driven operation just like any other FIS
"conversation."
We don't need to be adding hooks for each new and interesting type of
FIS sent across the wire. That just leads to an awful API.
Jeff
next prev parent reply other threads:[~2008-02-25 4:56 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-06 21:56 only one drive in a port multiplier system is being recognized Greg Hennessy
2007-11-12 2:58 ` Tejun Heo
[not found] ` <4738827D.9060405@pobox.com>
2007-11-13 1:09 ` What's needed for PMP support? Tejun Heo
2008-02-20 19:03 ` Mark Lord
2008-02-21 3:39 ` Tejun Heo
2008-02-21 15:07 ` Mark Lord
2008-02-21 20:52 ` [PATCH] libata-pmp: clear hob for pmp register accesses Mark Lord
2008-02-21 21:51 ` saeed bishara
2008-02-22 1:40 ` Tejun Heo
2008-02-24 5:29 ` Jeff Garzik
2008-02-22 0:31 ` What's needed for PMP support? Mark Lord
2008-02-22 0:32 ` Mark Lord
2008-02-22 1:57 ` Tejun Heo
2008-02-22 2:04 ` Mark Lord
2008-02-22 2:12 ` Tejun Heo
2008-02-22 2:25 ` Mark Lord
2008-02-22 2:27 ` Mark Lord
2008-02-22 3:52 ` Mark Lord
2008-02-22 4:22 ` new ata_port_operations for .pmp_{read,write} ? Mark Lord
2008-02-22 14:23 ` Mark Lord
2008-02-22 14:28 ` Mark Lord
2008-02-23 0:38 ` Mark Lord
2008-02-23 2:49 ` Tejun Heo
2008-02-23 2:43 ` Tejun Heo
2008-02-23 2:59 ` Jeff Garzik
2008-02-23 5:15 ` Mark Lord
2008-02-24 7:03 ` Tejun Heo
2008-02-24 7:14 ` Jeff Garzik
2008-02-25 4:34 ` Mark Lord
2008-02-25 4:46 ` Jeff Garzik
2008-02-25 4:31 ` Mark Lord
2008-02-25 4:49 ` Mark Lord
2008-02-25 4:56 ` Jeff Garzik [this message]
2008-02-25 5:20 ` Tejun Heo
2008-02-25 16:55 ` Mark Lord
2008-02-25 23:44 ` Tejun Heo
2008-02-26 0:12 ` Mark Lord
2008-02-26 2:01 ` Tejun Heo
2008-02-22 9:57 ` What's needed for PMP support? Alan Cox
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