Adds some new PCI IDs for new IPR adapters.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Support now exists in some ipr adapters to issue a device reset
to an Advanced Function disk.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

New ipr adapters support a new device queueing model in the
adapter firmware. The queueing model is the NACA queueing model,
but it does not mean use of NACA is required. The new model removes
some of the adapter firmware queue state that made handling QERR=0
almost impossible. The queueing model on older adapters included the
concept of a queue frozen state, which would freeze the response
queue in the adapter when a check condition occurred, requiring a
a primitive to resume the queue. The new queueing model removes this
complexity.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Handle some new types of ipr errors that can be returned by the adapter.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Some newer ipr adapters are capable of returning autosense from
devices that support it. This patch adds the data structures for
the autosense buffer.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Some ipr adapters will automatically create single device
RAID 0 arrays for all unconfigured RAID capable devices found
at adapter initialization time. This patch adds a module parameter
to disable this behavior.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Some IPR RAID adapter will automatically create single device RAID arrays
for all attached devices when the card is initialized. Setting the
RUNTIME_RESET doorbell bit will prevent this from occurring, since we
only want this behavior the first time the card is initialized and not
each time the card happens to get reset.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Add support for handling some new errors that may be returned
by ipr adapters.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

If an ipr adapter repeatedly fails its initialization
the ipr driver will take the adapter offline and never talk
to it again. This provides a method for the user to manually
try the initialization again through sysfs.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Make some compile time debugging options runtime module options.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

If the write buffer command that is issued to the ipr adapter
to update its microcode fails for some reason, the DMA buffer
will never get unmapped. Move the pci_map/unmap out of the
IOA reset job so that the buffer is always clearly mapped
and unmapped.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Convert appropriate kmalloc/memset calls to use kzalloc.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Adds a scsi_host sysfs attribute and module parm to enable/disable
the write cache on an ipr adapter.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Optimize ipr's slave_alloc to return -ENXIO for devices that
do not exist.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Set the no_uld_attach for devices ipr does not want
upper layer drivers to attach to. These devices are
only reported for RAID management and only sg should
be used to talk to them.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Fix ipr to include all disks in the supported device list,
not just disks formatted to advanced function format.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Simplify error logging path, sanitize error length returned
by the adapter.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Better handle errors received which are not known to the device driver.
Just dump the hex data so that we have a hope of figuring out what
went wrong.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

The generic ipr adapter error log currently logs 2 lines of useless
data. Delete these lines.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Adds a macro in the ipr driver for logging a physical device location.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Simplify the ipr error structures a bit by removing some duplication.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

IPR RAID arrays show up on a virtual scsi bus, with a scsi bus number
of 255, which is generated by the adapter microcode. For the initial
scan of the host, we manually scan this bus since it does not obey
SAM in regards to sparse LUNs and the disk array devices do not have
a consistent product id to use scsi core's blacklist. If /proc/scsi/scsi
or sysfs is used to delete one of these devices, the device will not
be able to get added back by rescanning the host since scsi core
will see ipr's max_channel as 4, rather than 255. Update max_channel
after the initial scan so that ipr raid arrays can get re-added
if they get deleted.
Signed-off-by: NBrian King <brking@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

The SCSI qlogicisp driver is both marked BROKEN and superseded by the
qla1280 driver.
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

just take the internal lock in queuecommand instead.  also switch
the only direct use of the internal lock to the wrappers used elsewhere.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

just take the internal lock in queuecommand instead.  also switch
the only direct use of the internal lock to the wrappers used elsewhere.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

just take the adapter lock in megaraid_queue.  Additional benefit is
that we can get rid of the awkward conditional locking in
mega_internal_command.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

also remove the adapter->host_lock alias for adapter->lock and remove
some superflous locking aswell as removing the tiny locking wrappers
for the EH routines.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

recent kernels call the eh_ methods without the host lock held.
megaraid_sas doesn't need it but drops it before calling a sleeping
routine and reqcquires it afterwards.  Just remove the
spin_unlock/spin_lock calls.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

scsi_send_eh_cmnd currently uses a semaphore and an overload of eh_timer
to either get a completion for a command for a timeout.
Switch to using a completion and wait_for_completion_timeout to simply
the code and not having to deal with the races ourselves.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

This function has been superceeded by the block request based interfaces
and is unused (except for the uncompilable cpqfc driver).
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

now that the abuse in qla2xxx is gone this field can be remove.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

adjust comments, remove a useless cast and remove a write-only variable.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

This patch started life as a response to fedora specific ide subsystem changes
that made error handling of my ATAPI tape drive fail; the specifics are in

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=160868

The insertion of the statement rq->errors = err; near the end of
ide_end_drive_cmd() in drivers/ide/ide-io.c means that rq->errors does not
contain what it needs to in idescsi_end_request() in drivers/scsi/ide-scsi.c
anymore. Recent mainline kernels now also have this change.
Signed-off-by: NWillem Riede <wrlk@riede.org>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

undefined symbol in Documentation/scsi/scsi_eh.txt
Signed-off-by: NStefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

IBM has finally agreed that the "Version Matching" between firmware and
drivers ( and the resulting warning messages ) is no longer necessary.
This patch will remove those functions from the ServeRAID driver.
Signed-off-by: NJack Hammer <jack_hammer@adaptec.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

- Update raid class to use nested classes for raid components (this will
allow us to move to a component control model now)
- Make the raid level an enumeration rather than and int.
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

There's an oops that sometimes shows up with SCSI transport classes in
sysfs_hash_and_remove.  The problem is that now, because of the class to
device and vice versa symlinks, all classes have to be removed from
visibility *before* the device is removed from visibility.

The transport class trigger points violate this, so bring them back into
conformance.
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

my patch "x86: initialise tss->io_bitmap_owner to something" (commit ID
d5cd4aad) introduced a problem with a
program (DOSEMU) that called ioperm after already doing some port i/o.

The problem is that a process switch return causes tss->io_bitmap_base
to be set to IO_BITMAP_OFFSET so that the fault (that *really* sets the
io bitmap) never triggers.

This fixes that regression.
Signed-off-by: NBart Oldeman <bartoldeman@users.sourceforge.net>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Some visually impaired people use hardware devices which directly read
the vga screen. When newt for instance asks to hide the cursor for
better visual aspect, the kernel puts the vga cursor out of the screen,
so that the cursor position can't be read by the hardware device. This
is a great loss for such people.

Here is a patch which uses the same technique as CUR_NONE for hiding the
cursor while still moving it.

Mario, you should apply it to the speakup kernel for access floppies
asap. I'll submit a 2.4 patch too.

Signed-off-by: samuel.thibault@ens-lyon.org
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>