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Replace pci_module_init() with pci_register_driver().
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Tejun Heo <htejun@gmail.com>
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Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Update major version for libata, and several drivers.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Based on a patch contributed by Andrew Chew @ NVIDIA.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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We don't need to use the heavier spin lock in the irq handler.
It's quite possible we can do this in nv_generic_interrupt() as well,
but I didn't take the time to pursue that train of thought.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Add hotplug support.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Convert to new EH.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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nf2/3 and ck804 have irq status register. Implement better irq
handler for those flavors of nv. This patch makes different flavors
of nv controllers use different irq handlers by using separate
port_info for each flavor.
This change also makes following EH and hotplug updates easier to
integrate.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Simplify interrupt constants and make NFORCE3 equal to NFORCE2.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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nv_host_desc and nv_host are used to discern different generations of
nv controllers. Kill those. New EH/hotplug implementation will use
standard port_info/ata_port_operations for that.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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sata_nv contained hotplug code which is mainly for demonstrating how
hotplug event is handled. This patch kills the demo code in
prepration for real hotplug implementation.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Hook transportt->user_scan() and hostt->slave_destroy().
Signed-off-by: Tejun Heo <htejun@gmail.com>
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We need to pass the device in order to do per device checks such as
32bit I/O enables. With the changes to include dev->ap we now don't have
to add parameters however just clean them up. Also add data_xfer methods
to the existing drivers except ata_piix (which is in the other block of
patches). If you reject the piix one just add a data_xfer to it...
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Added MCP61 SATA support to sata_nv.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Conflicts:
drivers/scsi/libata-scsi.c
include/linux/libata.h
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Overriding the whole EH code is a per-transport, not per-host thing.
Move ->eh_strategy_handler to the transport class, same as
->eh_timed_out.
Downside is that scsi_host_alloc can't check for the total lack of EH
anymore, but the transition period from old EH where we needed it is
long gone already.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Conflicts:
drivers/scsi/libata-core.c
drivers/scsi/pdc_adma.c
drivers/scsi/sata_mv.c
drivers/scsi/sata_nv.c
drivers/scsi/sata_promise.c
drivers/scsi/sata_qstor.c
drivers/scsi/sata_sx4.c
drivers/scsi/sata_vsc.c
include/linux/libata.h
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Rename ATA_FLAG_PORT_DISABLED to ATA_FLAG_DISABLED for consistency.
(ATA_FLAG_* are always about ports).
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Conflicts:
drivers/scsi/sata_vsc.c
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eliminate a bunch of
if (mmio)
writel()
else
outl()
code with the pci_iomap() and io{read,write}{8,16,32}() interface.
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SCSI midlayer has moved hostt->eh_timed_out to transport template. As
libata doesn't need full-blown transport support yet, implement
minimal transport for libata. No transport class or whatsoever, just
empty transport template with ->eh_timed_out hook.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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The previous dev->max_sectors patch made sht->max_sectors meaningless.
Kill all initializations of sht->max_sectors.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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Make all libata low level drivers use ata_scsi_timed_out().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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This patch works around a problem with spurious interrupts seen at boot time when
a MAXTOR 6H500F0 drive is present. An ATA interrupt condition is mysteriously
present at start of day. If we took too long in issuing the first command,
the kernel would basically get tired of the spurious interrupts and turn the interrupt
off. Issuing the first command essentially causes the interrupt condition to
get acknowledged.
I haven't seen this happen with any other drives.
What I basically do is ack ATA status by reading it regardless of whether we're
expecting to have to handle an interrupt. This clears the start-of-day anomalous
interrupt condition, and keeps the kernel from disabling that interrupt due to
too many spurious interrupts.
Also, I fixed a bug where hotplug interrupts weren't getting acknowledged as handled
in the ISR. This was not the cause of the spurious interrupts, but it's the right
thing to do anyway.
Signed-Off-By: Andrew Chew
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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Reflect changes in SCSI midlayer and updated to use new
ordered request implementation
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jens Axboe <axboe@suse.de>
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A few drivers were not following the standard meme of printing out
their driver name and version at module load time; this is fixed
as well.
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Enforce access rules where appropriate.
If the compiler is smart enough, this may buy us an optimization or two
as a side effect.
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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Patch to fix sata_nv handling of NVIDIA MCP51/55
Signed-off-by: Andy Currid <acurrid@nvidia.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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This redoes the n_ports logic I proposed before as a bitmask.
ata_pci_init_native_mode is now used with a mask allowing for mixed mode
stuff later on. ata_pci_init_legacy_port is called with port number and
does one port now not two. Instead it is called twice by the ata init
logic which cleans both of them up.
There are stil limits in the original code left over
- IRQ/port mapping for legacy mode should be arch specific values
- You can have one legacy mode IDE adapter per PCI root bridge on some systems
- Doesn't handle mixed mode devices yet (but is now a lot closer to it)
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libata.h:
libata-core:
Add ATA_FLAG_PIO_POLLING flag for LLDs that expect interrupt for
command completion only.
sata_nv.c:
sata_vsc.c:
irq handler is wrapper around ata_host_intr(), can handle PIO interrupts.
sata_promise.c:
sata_sx4.c:
sata_qstor.c:
sata_mv.c:
Private irq handler.
Polling mode ATA_FLAG_PIO_POLLING used for compatibility.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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Signed-off-by: Andy Currid <acurrid@nvidia.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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