From: Jeff Garzik <jeff@garzik.org>
To: Tejun Heo <htejun@gmail.com>
Cc: alan@lxorguk.ukuu.org.uk, ric@emc.com, edmudama@gmail.com,
linux-ide@vger.kernel.org
Subject: Re: [PATCH 1/5] libata: improve ata_down_xfermask_limit()
Date: Tue, 20 Feb 2007 10:46:39 -0500 [thread overview]
Message-ID: <45DB17DF.1000702@garzik.org> (raw)
In-Reply-To: <11704009501245-git-send-email-htejun@gmail.com>
Tejun Heo wrote:
> Make ata_down_xfermask_limit() accept @sel instead of @force_pio0.
> @sel selects how the xfermask limit will be adjusted. The following
> selectors are defined.
>
> * ATA_DNXFER_PIO : only speed down PIO
> * ATA_DNXFER_DMA : only speed down DMA, don't cause transfer mode change
> * ATA_DNXFER_40C : apply 40c cable limit
> * ATA_DNXFER_FORCE_PIO : force PIO
> * ATA_DNXFER_FORCE_PIO0 : force PIO0 (same as original with @force_pio0 == 1)
> * ATA_DNXFER_ANY : same as original with @force_pio0 == 0
>
> Currently, only ANY and FORCE_PIO0 are used to maintain the original
> behavior. Other selectors will be used later to improve EH speed down
> sequence.
>
> Signed-off-by: Tejun Heo <htejun@gmail.com>
> ---
> drivers/ata/libata-core.c | 105 ++++++++++++++++++++++++++++++++++-----------
> drivers/ata/libata-eh.c | 9 +++-
> drivers/ata/libata.h | 12 +++++-
> 3 files changed, 96 insertions(+), 30 deletions(-)
applied 1-4
next prev parent reply other threads:[~2007-02-20 15:46 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-02 7:22 asdf Tejun Heo
2007-02-02 7:22 ` [PATCH 2/5] libata: improve probe failure handling Tejun Heo
2007-02-02 7:22 ` [PATCH 1/5] libata: improve ata_down_xfermask_limit() Tejun Heo
2007-02-20 15:46 ` Jeff Garzik [this message]
2007-02-02 7:22 ` [PATCH 4/5] libata: kill ATA_DNXFER_ANY Tejun Heo
2007-02-02 7:22 ` [PATCH 3/5] libata: put some intelligence into EH speed down sequence Tejun Heo
2007-02-02 7:22 ` [PATCH 5/5] ahci: consider SDB FIS containing spurious NCQ completions HSM violation Tejun Heo
2007-02-20 15:46 ` Jeff Garzik
2007-02-21 7:34 ` [PATCH 5/5] ahci: consider SDB FIS containing spurious NCQ completions HSM violation (regenerated) Tejun Heo
2007-02-23 10:37 ` Jeff Garzik
2007-02-02 7:24 ` Subject is [PATCH,RESEND] libata: put some intelligence into speed down sequence Tejun Heo
2007-02-02 16:59 ` asdf Ric Wheeler
2007-02-03 4:07 ` asdf Tejun Heo
-- strict thread matches above, loose matches on Subject: below --
2007-02-02 7:09 [PATCHSET] ata_piix: improve combined mode handling Tejun Heo
2007-02-02 7:09 ` [PATCH 1/5] libata: improve ata_down_xfermask_limit() Tejun Heo
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