[jejb: fixed up a ton of missed conversions.

 All of you are on notice this has happened, driver trees will now
 need to be rebased]
Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com>
Cc: SCSI List <linux-scsi@vger.kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Updating copyright statement to include the year 2008
Signed-off-by: NSathya Prakash <sathya.prakash@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Following a hard reset of a SAS raid, one of the raid targets is occasionally
missing.  I tracked this down to a pretty obscure little bug.

The LSI fusion drivers for SAS and Fibre Channel both use their respective
transport layers.  Those transport layers increment the target number
assigned to new targets.

The routine __scsi_scan_target uses the "this_id" element of the Scsi_Host
structure to avoid scanning the scsi host adapter.  Both fusion drivers set
"this_id" from a value returned in a firmware PortFacts response.  For my
particular test case (SAS) the firmware id assigned to the initiator was
173.  After enough raid resets to cause the raid targets to go and come a
sufficient number of times, the id assigned by the transport to a raid
target would match the id assigned by the host adapter to the "this_id"
field, resulting in that target not being scanned.

Fix by not assigning this_id and not checking it in slave_configure. 
Signed-off-by: NMichael Reed <mdr@sgi.com>
Acked-by: N"Moore, Eric" <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

While performing hardware raid reset testing via the raid's client, I
noticed that sometimes, following the reset, that there would be more
raid targets in the lsscsi output than there actually were raid
targets.  I tracked this down to the following issue.

Fusion cannot always find the mptsas_portinfo structure for the hba
because it uses the handle stored in ioc->handle to locate it.  The
problem is that the firmware can change the handle associated with the
hba when h/w raid is reset (via the raid client).  When this happens,
the driver will allocate another mptsas_portinfo structure and link it
into the chain of said structures.  This ultimately causes confusion
within the driver resulting in targets not being removed when they
should be.

Eric Moore pointed out that the hba's portinfo structure is always the
first structure on the sas_topology list.  This patch modifies
mptsas.c to access the hba's portinfo structure by taking the first
structure on said list.
Signed-off-by: NMichael Reed <mdr@sgi.com>
Acked-by: N"Moore, Eric" <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Don't oops if NumPhys==0, instead return -ENODEV.
This patch fixes http://bugzilla.kernel.org/show_bug.cgi?id=9909Signed-off-by: NKrzysztof Piotr Oledzki <ole@ans.pl>
Acked-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

This patch fixes mptsas_smp_handler to update both din_resid or
dout_resid on success. bsg can report back the residual.
Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Cleaning up prints that use the xxx_printk API, in that the fusion
preamble "mptbase: iocX" follows the info provided by the print API.
The way its currently coded, the [H:C:T] print in sdev_printk will be
inbetween "mptbase" and "iocX", instead of before.
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

ScsiLookup is an array of pending scmd pointers that the scsi lld
maintains. This array is touched from queuecommand, eh threads, and
interrupt context. This array should put under locks, hence this patch
to synchronize its access.  I've added some nice little function
wrappers for this, and moved the ScsiLookup array over to MPT_ADAPTER
struct.
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

List below is output from C=2 sparse compilation, which are fixed with
this patch.

1) mptspi: pg0 is defined in x86 version of include/asm/pgtable.h

2) mptsas: context imbalance in 'mptsas_probe' different lock contexts
   for basic block

3) mptbase: from mpt_attach - cast adds address space to expression

4) mptbase: from mpt_do_upload - request[] is bad constant expression
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

The driver is currently typecasting to obtain the shost hostdata. The
driver is updated to use the shost_priv macro.
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Some other vender has concerns over this copyright, and Dell has
approved removing it.
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Cleaning up code by accesing the ioc pointer directly instead of via hd->ioc.  In the future, most data members of struct MPT_SCSI_HOST will be either deleted or moved to struct MPT_ADAPTER.
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

common naming of vdevice through out driver
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Standardize all prints using common MYIOC_s_XXX_FMT macro defined in mptbase.h. Currently the driver uses several different methods to display info, where in some cases the "controller name" generating the printk is not provided.
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Recently LSI Logic Corp was renamed as LSI Corp, so whereever there is
a reference of LSI Logic, it is changed to LSI in mpt fusion driver
code.
signed-off-by: NSathya Prakash <sathya.prakash@lsi.com>
Acked-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

The data structure definitions from mptsas.c are moved to a new header
file mptsas.h
signed-off-by: NSathya Prakash <sathya.prakash@lsi.com>
Acked-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

The call back index requires only u8 but in lot of places it is
referred as int, now everywhere the call back index variables are
declared as u8 with uniform name cb_idx
signed-off-by: NSathya Prakash <sathya.prakash@lsi.com>
Acked-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Added support for sending the task management requests through High priority
request FIFO instead of Doorbell writes when firmware support High priority
FIFO.
signed-off-by: NSathya Prakash <sathya.prakash@lsi.com>
Acked-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

This patch adds support for SAS Management Protocol (SMP) passthrough
support via bsg.
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>

This patch contains changes in mptfc.c, mptlan.c, mptsas.c and mptspi.c to
support logging in MPT fusion drivers.

The changes are majorly in debug printks, the existing debugprintk are
modified accroding to new debug macros defined in the file mptbdebug.h
signed-off-by: NSathya Prakash <sathya.prakash@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

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>

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>

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>

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>

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>

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>

* Add modinfo driver version support.
* Change copyright year to 2007.
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

* Endian fix's for warnings found in ppc environment.
* Fix compile time warning when calling scsi_device_reprobe, where
in newer kernels this API expects its return value to be examined.
* Fix compile errors when debug messages are enabled.
Signed-off-by: NEric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Fix up for make allyesconfig.
Signed-Off-By: NDavid Howells <dhowells@redhat.com>

This flag denotes local attachment of the phy.  There are two problems
with it:

1) It's actually redundant ... you can get the same information simply
by seeing whether a host is the phys parent
2) we condition a lot of phy parameters on it on the false assumption
that we can only control local phys.  I'm wiring up phy resets in the
aic94xx now, and it will be able to reset non-local phys as well.

I fixed 2) by moving the local check into the reset and stats function
of the mptsas, since that seems to be the only HBA that can't
(currently) control non-local phys.
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

This takes advantage of the sas class backlink function to show which
port on an expander is used to communicate with the parent.
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

* removing obsolete 1066, 1066E from Kconfig
* initializing aen_event_read_flag after host reset
* remove oem references
* remove obsolete mpt_pq_filter command line option
Signed-off-by: NEric Moore <Eric.Moore@lsil.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Using the port_id for the channel is completely unnecessary since the
host_id/target_id are constructed to be globally unique.  Also move
the mptsas driver on to virtual channel 1 for its raid devices.
Acked-by: N"Moore, Eric" <Eric.Moore@lsil.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

This allows us to be rid of the machinery in mptsas for creating and
tracking port numbers.  Since mptsas is merely inventing the numbers,
the SAS transport class may as well do it instead.
Signed-off-by: NEric Moore <Eric.Moore@lsil.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

One of the current problems the mptsas driver has is that of "ghost"
devices (these are devices the firmware reports as existing, but what
they actually represent are the parents of a lower device), so for
example in my dual expander configuration, three expanders actually show
up, two for the real expanders but a third is created because the
firmware reports that the lower expander also has another expander
connected (which is simply the port going back to the upper expander).

The attached patch eliminates all these ghosts by not allocating any
devices for them if the SAS address is the SAS address of the parent.
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Make two needlessly global functions static.
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NAndrew Morton <akpm@osdl.com>
Signed-off-by: NEric Moore <Eric.Moore@lsil.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>