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From: Tejun Heo <htejun@gmail.com>
To: jgarzik@pobox.com, albertcc@tw.ibm.com, alan@lxorguk.ukuu.org.uk,
	linux-ide@vger.kernel.org, htejun@gmail.com
Subject: [PATCHSET] libata: implement per-dev xfer masks
Date: Sun, 12 Mar 2006 16:02:35 +0900	[thread overview]
Message-ID: <11421469551948-git-send-email-htejun@gmail.com> (raw)
In-Reply-To: 

Hello, all.

This patchset adds per-dev pio, mwdma and udma_mask.  Because
port-wide xfer_mask is currently used, this patch does not change any
behavior.  Per-dev xfer masks will also be used by EH to slow down
devices suffering frequent transmission errors.

I marked with comment where the mode filtering for low level drivers
should be done but I'm not sure how the interface should look like.
->pre_set_mode(ap) is okay but then the LLDD should iterate over all
devices.  Maybe ->pre_set_mode(ap, dev) or ->filter_xfer_mask(ap, dev)?

The patchset is against the current #upstream[1].

Thanks.

--
tejun

[1] 418dc1f5a805822fcf1118804ddc689a4156db4a



             reply	other threads:[~2006-03-12  7:02 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-03-12  7:02 Tejun Heo [this message]
2006-03-12  7:02 ` [PATCH 2/4] libata: implement ata_dev_init() Tejun Heo
2006-03-13  6:19   ` Tejun Heo
2006-03-13  8:26     ` Jeff Garzik
2006-03-13  9:25       ` Tejun Heo
2006-03-12  7:02 ` [PATCH 3/4] libata: add per-dev pio/mwdma/udma_mask Tejun Heo
2006-03-13  8:29   ` Jeff Garzik
2006-03-13  9:30     ` Tejun Heo
2006-03-13  9:52       ` Jeff Garzik
2006-03-13 10:09         ` Tejun Heo
2006-03-13 10:13           ` Jeff Garzik
2006-03-13 10:24             ` Tejun Heo
2006-03-21  1:56               ` Jeff Garzik
2006-03-21 10:25                 ` Alan Cox
2006-03-12  7:02 ` [PATCH 1/4] libata: implement ata_unpack_xfermask() Tejun Heo
2006-03-13  8:23   ` Jeff Garzik
2006-03-12  7:02 ` [PATCH 4/4] libata: make per-dev transfer mode limits per-dev Tejun Heo
2006-03-13  8:30   ` Jeff Garzik
2006-03-13  9:33     ` Tejun Heo
2006-03-12 13:37 ` [PATCHSET] libata: implement per-dev xfer masks Alan Cox
2006-03-13  6:12   ` Tejun Heo
2006-03-13 11:41     ` Alan Cox

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