From: Brian King <brking@linux.vnet.ibm.com>
To: Tejun Heo <htejun@gmail.com>
Cc: jeff@garzik.org, alan@lxorguk.ukuu.org.uk, linux-ide@vger.kernel.org
Subject: Re: [PATCH 03/12] libata: separate out ata_host_alloc() and ata_host_attach()
Date: Mon, 12 Mar 2007 17:25:32 -0500 [thread overview]
Message-ID: <45F5D35C.6000408@linux.vnet.ibm.com> (raw)
In-Reply-To: <11734389353424-git-send-email-htejun@gmail.com>
Tejun Heo wrote:
> * ipr is now the only user of ata_host_init(). Either kill it by
> converting ipr to use ata_host_alloc() and friends or rename and
> move it to libata-scsi.c
One of the problems with converting ipr to use ata_host_alloc and
friends is that it then forces ipr to tell libata how many "SATA ports"
are possible. On SAS, this number can't really be calculated, since
the maximum number of SATA devices which can possibly be cabled to a
SAS adapter, particularly with SAS expanders, is a very large number
and is not practical for how this is being used in the current
implementation. My guess is that aic94xx will have similar issues/concerns.
Brian
--
Brian King
eServer Storage I/O
IBM Linux Technology Center
next prev parent reply other threads:[~2007-03-12 22:25 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-09 11:15 [PATCHSET] libata: implement new initialization model, take #3 Tejun Heo
2007-03-09 11:15 ` [PATCH 04/12] libata: implement ata_host_alloc_pinfo() and ata_host_attach() Tejun Heo
2007-03-09 16:08 ` Jeff Garzik
2007-03-09 11:15 ` [PATCH 02/12] libata: separate out ata_host_start() Tejun Heo
2007-03-09 11:15 ` [PATCH 05/12] libata: convert legacy PCI host handling to new init model Tejun Heo
2007-03-09 17:46 ` Jeff Garzik
2007-03-09 11:15 ` [PATCH 03/12] libata: separate out ata_host_alloc() and ata_host_attach() Tejun Heo
2007-03-09 15:34 ` Jeff Garzik
2007-03-12 22:25 ` Brian King [this message]
2007-03-13 6:06 ` Tejun Heo
2007-03-13 22:34 ` Brian King
2007-03-14 4:48 ` Tejun Heo
2007-03-14 15:25 ` Brian King
2007-03-09 11:15 ` [PATCH 01/12] libata: allocate ap separately from shost Tejun Heo
2007-03-09 15:00 ` Jeff Garzik
2007-03-09 11:15 ` [PATCH 09/12] libata: convert ata_pci_init_native_mode() users to new init model Tejun Heo
2007-03-09 11:15 ` [PATCH 06/12] libata: convert native PCI host handling " Tejun Heo
2007-03-09 15:45 ` Jeff Garzik
2007-03-09 11:15 ` [PATCH 11/12] libata: convert the remaining PATA drivers " Tejun Heo
2007-03-09 12:49 ` Alan Cox
2007-03-09 11:15 ` [PATCH 12/12] libata: kill probe_ent and related helpers Tejun Heo
2007-03-09 11:15 ` [PATCH 07/12] libata: add init helpers including ata_pci_prepare_native_host() Tejun Heo
2007-03-09 11:15 ` [PATCH 08/12] libata: convert drivers with combined SATA/PATA ports to new init model Tejun Heo
2007-03-09 12:46 ` Alan Cox
2007-03-09 11:55 ` Jeff Garzik
2007-03-09 13:04 ` Tejun Heo
2007-03-09 11:15 ` [PATCH 10/12] libata: convert the remaining SATA drivers " Tejun Heo
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