The mptspi and mptsas drivers are modified to deregister from transport layer
if registration with PCI driver failed
Signed-off-by: NSathya Prakash <sathya.prakash@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

New sysfs scsi_host attributes are added to provide information about Firmware
version, BIOS version, MPI version and other product related information
signed-off-by: NSathya Praksh <sathya.prakash@lsi.com>
Acked-by: N"Moore, Eric" <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

If there is IO going to the volume while a hidden disk is being torn down,
there is a case where we would return a DID_NO_CONNECT for IO sent to the
volume. The end result is the volume goes read-only. This problem is due to the
fact the firmware mapped target ids saved in per device object is phys_disk_num
for hidden  raid components, and target_id for the volume. There is a single
case when both phys_disk_num and target_id are equal, so enters this issue. We
fix this issue by checking the tflags when the device is torned down,
insuring the IO being completed is meant for hidden raid component, not the
volume.  In addition to this fix, there are a couple other cases to address
hidden raid components. For instance task_abort and device reset are not
supported by mpt fw for hidden raid components, a bus reset would be required
or target reset to volume.
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

nice cosmetic cleaning of eh thread callback funtions
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

bump version
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

rewrite of  mpt_fc_log_info to use the enum/defines from mpi_log_fc.h
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

remove unused header
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

fc inband managment header deleted
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

mpi header update
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Update assocated fusion sources with new support email address.
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Patch for: http://bugzilla.kernel.org/show_bug.cgi?id=8426

A recent code cleanup that moved code from mptscsih to mptspi
inadvertently change the order some code was called.  This caused
a massive slowdown (of 150x to 300x) on the CD/DVD drive on the
high-end HP Integrity servers.
Signed-off-by: NDoug Chapman <doug.chapman@hp.com>
Acked-by: NEric Moore <eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

TODO: use scsi_for_each_sg().
Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: NEric Moore <eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

There are several cases where the fusion driver uses the logical || to
try to do an arithmetical or ... fix by replacing with |.
Signed-off-by: NDave Jones <davej@redhat.com>
Acked-by: N"Moore, Eric" <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Refine some depends statements to limit their visibility to the
environments that are actually supported.
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

Fix various typos in kernel docs and Kconfigs, 2.6.21-rc4.
Signed-off-by: NMatt LaPlante <kernel1@cyberdogtech.com>
Signed-off-by: NAdrian Bunk <bunk@stusta.de>

Signed-off-by: NMichael Opdenacker <michael@free-electrons.com>
Signed-off-by: NAdrian Bunk <bunk@stusta.de>

After host reset, the device are programmed to default asyn narrow nego.
We need to reprogram the parameter back to previous values.  If the host
reset is called as a result of spi_dv_device() commands timing out, its
possible to get into an infinite loop of dv to host reset.  This will
prevent that case, as we merely program old values.  If host reset is
called outside context of domain validation, then we can  call
spi_dv_device.
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

To clearly state the intent of copying from linear sk_buffs, _offset being a
overly long variant but interesting for the sake of saving some bytes.
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

For the places where we need a pointer to the mac header, it is still legal to
touch skb->mac.raw directly if just adding to, subtracting from or setting it
to another layer header.

This one also converts some more cases to skb_reset_mac_header() that my
regex missed as it had no spaces before nor after '=', ugh.
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

For the common, open coded 'skb->mac.raw = skb->data' operation, so that we can
later turn skb->mac.raw into a offset, reducing the size of struct sk_buff in
64bit land while possibly keeping it as a pointer on 32bit.

This one touches just the most simple case, next will handle the slightly more
"complex" cases.
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Acked-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

This address the issue of VMWare guest OS being remounted as read-only
becuase the underlying device was held busy too long and at the
same time address Engenio MPP driver concerns over infinite retries.
This patch removes the code that snoops the SAM STATUS on busy, which
would be returning DID_BUS_BUSY, instead we return the status as is.
Retry hanlding seems to be properly handled in scsi_softirq_done,
where a busy sam status would only occurr for the time specified by
(cmd->allowed +1) * cmd->timeout_per_command.
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Honour the return value of pci_enable_device(), which
seems to be a desirable thing to do:

  2.6.20-rc4
  gcc (GCC) 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)

    CC [M]  drivers/message/fusion/mptbase.o
    drivers/message/fusion/mptbase.c: In function `mpt_resume':
    drivers/message/fusion/mptbase.c:1541: warning: ignoring return value
    of `pci_enable_device', declared with attribute warn_unused_result

It also in turn has mptscsih_resume() honour the return value of
mpt_resume()

I'm not sure about the handling of the other potential error cases
in mpt_resume(), of which there appear to be many. But this does
seem to be a good start.
Signed-off-by: NSimon Horman <horms@verge.net.au>
Acked-by: N"Moore, Eric" <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

It seems that most of the code in mptscsih_resume() doesn't
do anything. This patch removes that code.
Signed-off-by: NSimon Horman <horms@verge.net.au>
Acked-by: N"Moore, Eric" <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Fix kernel-doc warnings in fusion driver code.
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Acked-by: N"Moore, Eric" <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

This fix's an oops during driver load time.   mptsas_probe calls
mpt_attach(over in mptbase.c).  Inside that call, we read some
manufacturing config pages to setup some defaults.  While reading the
config pages, the firmware doesn't complete the reply in time, and we
have a timeout. The timeout results in hardreset handler being called.
The hardreset handler calls all the fusion upper layer driver reset
callback handlers.  The mptsas_ioc_reset function is the callback
handler in mptsas.c.   So where I'm getting to, is mptsas_ioc_reset is
getting called before scsi_host_alloc is called, and the pointer ioc->sh
is NULL as well as the hostdata. 
Signed-off-by: NJudith Lebzelter <judith@osdl.org>
Acked-by: N"Moore, Eric" <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there.  Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.

To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.

Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm.  I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).
Signed-off-by: NTim Schmielau <tim@physik3.uni-rostock.de>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

[akpm@sdl.org: dvb fix]
Signed-off-by: NArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

bump version, and fix email addr for lsi support
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

misc error handling bug fix's
- properly interpret iocstatus returned after task management request
- clear tmState after a failed doorbell
- cleanup mptscsih_taskmgmt_complete
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Return proper sas address to sas transport layer for parent phys that
form a wide port. Current implementation returns a different address
for each phy, incremented by one from the base address.
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Fusion firmware requires target reset following hotplug removal event,
with purpose to flush target outstanding request in fw. Current implementation
does the target resets from delayed work tasks, that in heavy load
conditions, take too long to be invoked, resulting in command time outs
This patch will issue target reset immediately from ISR context, and will
queue remaining target resets to be issued after the previous one completes.
The delayed work tasks are spawned during the target reset completion.
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

inactive raid support, e.g. exposing hidden raid components
belonging to a volume that are inactive.  Also misc bug fix's for
various raid asyn events.
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

various string updates for iocstatus, logingo, and fw asyn events.
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

helpful debug for mptspi module
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Move some functions that only apply to the mptspi module over from mptscsih.c
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Add support for greater than 255 target and luns.
Kill the hd->Target[] field, and change all references
of bus_id/target_id, to channel/id.
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Here are the lastest mpi headers for mpt fusion driver, which defines
the firmware to driver interface.
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

This patch makes the mptctl pass through available if
the mptsas driver is selected. Without this patch
if mptsas is the only fusion driver chosen, then
the mptctl is not presented as an option.

smp_utils uses the mptctl driver to pass SAS SMP
functions through a MPT SAS HBA.
Signed-off-by: NDouglas Gilbert <dougg@torque.net>
Acked-by: N"Moore, Eric" <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

bump version
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>