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libata/IDE: remove combined mode quirk

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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>
This commit is contained in:
Jeff Garzik
2007-03-09 10:54:42 -05:00
parent e424675f15
commit 8cdfb29c0c
8 changed files with 6 additions and 173 deletions
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include/linux/ioport.h
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@@ -99,7 +99,6 @@ extern struct resource ioport_resource;
extern struct resource iomem_resource;
extern int request_resource(struct resource *root, struct resource *new);
extern struct resource * ____request_resource(struct resource *root, struct resource *new);
extern int release_resource(struct resource *new);
extern int insert_resource(struct resource *parent, struct resource *new);
extern int allocate_resource(struct resource *root, struct resource *new,