From: Jeff Garzik <jgarzik@pobox.com>
To: Tejun Heo <htejun@gmail.com>
Cc: linux-ide@vger.kernel.org, robbat2@gentoo.org
Subject: Re: [PATCH 2/2] [PATCH] ahci: honor PORTS_IMPL on ICH8s
Date: Thu, 05 Oct 2006 07:25:05 -0400 [thread overview]
Message-ID: <4524EB91.1020303@pobox.com> (raw)
In-Reply-To: <20060930122259.GS25800@htj.dyndns.org>
Tejun Heo wrote:
> Some ICH8s use non-linear port mapping. ahci driver didn't use to
> honor PORTS_IMPL and this made ports after hole nonfunctional. This
> patch implements port mapping table and use it to handle non-linear
> port mapping.
>
> As it's unknown whether other AHCIs implement PORTS_IMPL register
> properly, new board id board_ahci_pi is added and selectively applied
> to ICH8s. All other AHCIs continue to use linear mapping regardless
> of PORTS_IMPL value.
>
> Signed-off-by: Tejun Heo <htejun@gmail.com>
> Cc: Robin H. Johnson <robbat2@gentoo.org>
I still disagree with the port mapping table. I want to preserve the
direct index properties, and would rather see code fixed up such that
assumptions where n_ports implies all lower ports are fixed.
Jeff
next prev parent reply other threads:[~2006-10-05 11:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-30 12:21 [PATCH 1/2] ahci: preserve PORTS_IMPL over host resets Tejun Heo
2006-09-30 12:22 ` [PATCH 2/2] [PATCH] ahci: honor PORTS_IMPL on ICH8s Tejun Heo
2006-09-30 16:13 ` Robin H. Johnson
2006-10-05 11:25 ` Jeff Garzik [this message]
2006-10-05 15:12 ` Tejun Heo
2006-10-05 11:27 ` [PATCH 1/2] ahci: preserve PORTS_IMPL over host resets Jeff Garzik
2006-10-05 15:02 ` Tejun Heo
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