login
Login
/
Register
Search
Search this site:
Forums
News
Blogs
Features
Site
Home
»
Mailing list archives
»
linux-kernel
»
2007
»
March
»
9
Re: [PATCH 2.6.22] remove Intel combined mode quirk
view
thread
Previous message: [
thread
] [
date
] [
author
]
Next message: [thread] [
date
] [
author
]
[view in full thread]
From: Bartlomiej Zolnierkiewicz
Subject:
Re: [PATCH 2.6.22] remove Intel combined mode quirk
Date: Friday, March 9, 2007 - 1:36 pm
On Friday 09 March 2007, Jeff Garzik wrote:
quoted text
> > Discussed for 2.6.21, but pushed back because the current SATA code > had enough fun stuff to debug already. Thus, just queued the following > for 2.6.22 in libata-dev.git#upstream. > > The nasty ____request_resource hack is finally gone. > > In practical terms, this usually means that some combined mode users > will have their SATA devices driven by the old-IDE driver rather than > libata (because old-IDE is often non-modular, and thus probes first). > > But really, these same users will IMO cheer the removal of the > performance-killing split-driver configuration, so its a net win. > And the code is smaller and more clean, with one less special case > hack. > > libata/IDE: remove combined mode quirk > > Both old-IDE and libata should be able handle all controllers and > devices found using normal resource reservation methods. > > This eliminates the awful, low-performing split-driver configuration > where old-IDE drove the PATA portion of a PCI device, in PIO-only mode, > and libata drove the SATA portion of the /same/ PCI device, in DMA mode. > Typically vendors would ship SATA hard drive / PATA optical > configuration, which would lend itself to slow (PIO-only) CD-ROM > performance. > > For Intel users running in combined mode, it is now wholly dependent on > your driver choice (potentially link order, if you compile both drivers > in) whether old-IDE or libata will drive your hardware. > > In either case, you will get full performance from both SATA and PATA > ports now, without having to pass a kernel command line parameter. > > Signed-off-by: Jeff Garzik <jeff@garzik.org>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Thanks for fixing this. Bart -
unsubscribe notice
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to
majordomo@vger.kernel.org
More majordomo info at
http://vger.kernel.org/majordomo-info.html
Please read the FAQ at
http://www.tux.org/lkml/
Previous message: [
thread
] [
date
] [
author
]
Next message: [thread] [
date
] [
author
]
Messages in current thread:
[PATCH 2.6.22] remove Intel combined mode quirk
, Jeff Garzik
, (Fri Mar 9, 9:01 am)
Re: [PATCH 2.6.22] remove Intel combined mode quirk
, Jeff Garzik
, (Fri Mar 9, 9:08 am)
Re: [PATCH 2.6.22] remove Intel combined mode quirk
, Jeff Garzik
, (Fri Mar 9, 9:33 am)
Re: [PATCH 2.6.22] remove Intel combined mode quirk
, Alan Cox
, (Fri Mar 9, 10:29 am)
Re: [PATCH 2.6.22] remove Intel combined mode quirk
, Jesse Barnes
, (Fri Mar 9, 12:56 pm)
Re: [PATCH 2.6.22] remove Intel combined mode quirk
, Bartlomiej Zolnierki ...
, (Fri Mar 9, 1:36 pm)
Navigation
Mailing list archives
Recent posts
Popular discussions
linux-kernel
:
Greg KH
Og dreams of kernels
Jens Axboe
[PATCH 31/33] Fusion: sg chaining support
Arnd Bergmann
Re: finding your own dead "CONFIG_" variables
Mark Brown
[PATCH 2/2] Subject: natsemi: Allow users to disable workaround for DspCfg reset
Tony Breeds
[LGUEST] Look in object dir for .config
git
:
Brian Downing
Re: Git in a Nutshell guide
John Benes
Re: master has some toys
Matthias Lederhofer
[PATCH 4/7] introduce GIT_WORK_TREE to specify the work tree
Alexander Sulfrian
[RFC/PATCH] RE: git calls SSH_ASKPASS even if DISPLAY is not set
Junio C Hamano
Re: Rss produced by git is not valid xml?
git-commits-head
:
Linux Kernel Mailing List
iSeries: fix section mismatch in iseries_veth
Linux Kernel Mailing List
ixbge: remove TX lock and redo TX accounting.
Linux Kernel Mailing List
ixgbe: fix several counter register errata
Linux Kernel Mailing List
b43: fix build with CONFIG_SSB_PCIHOST=n
Linux Kernel Mailing List
9p: block-based virtio client
linux-netdev
:
Michael Breuer
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit()
Michael Breuer
Re: [PATCH] af_packet: Don't use skb after d