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From: "zhao, forrest" <forrest.zhao@intel.com>
To: Hannes Reinecke <hare@suse.de>
Cc: jeff@garzik.org, axboe@suse.de, htejun@gmail.com,
	jeremy@goop.org, lkml@rtr.ca, linux-ide@vger.kernel.org
Subject: Re: [PATCH 3/6] The definition of ahci_port_standby() and	ahci_port_spinup()
Date: Fri, 02 Jun 2006 17:01:53 +0800	[thread overview]
Message-ID: <1149238913.29552.7.camel@forrest26.sh.intel.com> (raw)
In-Reply-To: <447FF381.4060707@suse.de>

On Fri, 2006-06-02 at 10:14 +0200, Hannes Reinecke wrote:
> Did you actually test with staggered-spinup and/or cold-presence
> detection? I just added them per spec but never got a chance to test
> them here.

We have no mobile platform in our lab, which support staggered-spinup or
cold presence detection. I would test it when the newest chipset is
available. 

> And: it might be an idea to rename the HOST_CAP bits to be consistent
> with those printed during initialisation. It's bad enough as it is (ie
> the spec uses different abbrevs than the implementation), but we should
> try to be consistent within the implementation.
> I would rename them to HOST_CAP_STAG and HOST_CAP_SLUM.

Agree. When reading code, I need to translate the MACRO into the abbrevs
in spec to understand the meaning.

> Add slumber mode: libata-core used to issue a port reset with an
> implicit SLUMBER/PARTIAL mode disable. So after a reset we might not be
> able to put the device into SLUMBER mode even if supported.
> What was the reasoning for this?

I have the same question. Maybe the original author of libata-core.c can
help answer it.

  reply	other threads:[~2006-06-02  9:13 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-06-02  7:45 [PATCH 3/6] The definition of ahci_port_standby() and ahci_port_spinup() zhao, forrest
2006-06-02  8:14 ` Hannes Reinecke
2006-06-02  9:01   ` zhao, forrest [this message]
2006-06-03 13:23 ` Tejun Heo
2006-06-03 19:16   ` Jeff Garzik
  -- strict thread matches above, loose matches on Subject: below --
2006-06-06 10:17 zhao, forrest
2006-06-29  8:19 zhao, forrest
2006-07-10  3:35 zhao, forrest
2006-07-11  6:38 zhao, forrest
2006-07-13  5:38 zhao, forrest

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