1) rewrite of ioctl_cmds internal generated function that issue commands to
firmware, porting them to be single threaded using the generic MPT_MGMT
struct. All wait Queues are replace by completion Queue.
2) added seperate callback handler for ioctl task managment
(mptctl_taskmgmt_reply), to handle command that timeout
3) rewrite mptctl_bus_reset
Signed-off-by: NKashyap Desai <kadesai@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

1.) 	Added taskmgmt_quiesce_io flag in IOC and removed resetPending from
	_MPT_SCSI_HOST struct.
2.)	Reset from Scsi mid layer and internal Reset are seperate context.
	Adding DeviceResetCtx for internal Device reset frame.
	mptsas_taskmgmt_complete is optimized as part of implementation.
Signed-off-by: NKashyap Desai <kadesai@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

1.)	 rewrite taskmanagement request and completion routines, making them
single threaded and using the generic MPT_MGMT struct, deleting
mptscsih_TMHandler, replacing with single request TM handler
mptscsih_IssueTaskMgmt, and killing the watchdog timer functions.
2.) cleanup ioc_reset callback handlers, introducing wrappers for
synchronizing error recovery (mpt_set_taskmgmt_in_progress_flag,
mpt_clear_taskmgmt_in_progress_flag), as the fusion firmware only handles
one task management request at a time
Signed-off-by: NKashyap Desai <kadesai@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Rewrite of all internal generated functions that issue commands to firmware,
porting them to be single threaded using the generic MPT_MGMT
struct. Implemented using completion Queue.
Signed-off-by: NKashyap Desai <kadesai@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

1) 	Previously we had mutliple #defines to use same values.
	Now those #defines are optimized.
	MPT_IOCTL_STATUS_* is removed and  MPT_MGMT_STATUS_* are new
	#defines.
2.)	config path is optimized.
	Instead of wait Queue and timer, using completion Q.
3.)	mpt_timer_expired is not used.

[jejb: elide patch to eliminate mpt_timer_expired]
Signed-off-by: NKashyap Desai <kadesai@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

SendEventNotification was handled through FIFO, now it is using doorbell to
communicate with hardware. Added Sleep Flag as an extra argument to support
Can-Sleep feature.  Resending patch including compilation error fix reviewed
by Grant Grundler.
Signed-off-by: NKashyap Desai <kadesai@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

sas_discovery_quiesce_io flag is used to control IO start/resume functionality.
IO will be stoped while doing discovery of topology. Once discovery is completed
It will resume IO. Resending patch including James review.
Signed-off-by: NKashyap Desai <kadesai@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

The reason for this change is there is a data corruption when four different
physical memory regions in the 36GB to 37GB region are
accessed. This is only affecting 1078.

The solution is we need to use different addressing when filling in
the scatter gather table for the effected memory regions.  So instead
of snooping on all four different memory holes, we treat any physical
addresses in the 36GB address with the same algorithm.

The fix is explained below
1) Ensure that the message frames are NOT located in the trouble
region. There is no remapping available for message frames, they must
be allocated outside the problem region.
2) Ensure that Sense buffers are NOT in the trouble region. There is
no remapping available.
3) Walk through the SGE entries and if any are inside the trouble region
   then they need to be remapped as discussed below.
	1) Set the Local Address bit in the SGE Flags field.
  	MPI_SGE_FLAGS_LOCAL_ADDRESS
  	2) Ensure we are using 64-bit SGEs
  	3) Set MSb (Bit 63) of the 64-bit address, this will indicate buffer
	location is Host Memory.
Signed-off-by: NKashyap Desai <kadesai@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=13133

ODEBUG: object is on stack, but not annotated
------------[ cut here ]------------
WARNING: at lib/debugobjects.c:253 __debug_object_init+0x1f3/0x276()
Hardware name: VMware Virtual Platform
Modules linked in: mptspi(+) mptscsih mptbase scsi_transport_spi ext3 jbd mbcache
Pid: 540, comm: insmod Not tainted 2.6.28-mm1 #2
Call Trace:
 [<c042c51c>] warn_slowpath+0x74/0x8a
 [<c0469600>] ? start_critical_timing+0x96/0xb7
 [<c060c8ea>] ? _spin_unlock_irqrestore+0x2f/0x3c
 [<c0446fad>] ? trace_hardirqs_off_caller+0x18/0xaf
 [<c044704f>] ? trace_hardirqs_off+0xb/0xd
 [<c060c8ea>] ? _spin_unlock_irqrestore+0x2f/0x3c
 [<c042cb84>] ? release_console_sem+0x1a5/0x1ad
 [<c05013e6>] __debug_object_init+0x1f3/0x276
 [<c0501494>] debug_object_init+0x13/0x17
 [<c0433c56>] init_timer+0x10/0x1a
 [<e08e5b54>] mpt_config+0x1c1/0x2b7 [mptbase]
 [<e08e3b82>] ? kmalloc+0x8/0xa [mptbase]
 [<e08e3b82>] ? kmalloc+0x8/0xa [mptbase]
 [<e08e6fa2>] mpt_do_ioc_recovery+0x950/0x1212 [mptbase]
 [<c04496c2>] ? __lock_acquire+0xa69/0xacc
 [<c060c8f1>] ? _spin_unlock_irqrestore+0x36/0x3c
 [<c060c3af>] ? _spin_unlock_irq+0x22/0x26
 [<c04f2d8b>] ? string+0x2b/0x76
 [<c04f310e>] ? vsnprintf+0x338/0x7b3
 [<c04496c2>] ? __lock_acquire+0xa69/0xacc
 [<c060c8ea>] ? _spin_unlock_irqrestore+0x2f/0x3c
 [<c04496c2>] ? __lock_acquire+0xa69/0xacc
 [<c044897d>] ? debug_check_no_locks_freed+0xeb/0x105
 [<c060c8f1>] ? _spin_unlock_irqrestore+0x36/0x3c
 [<c04488bc>] ? debug_check_no_locks_freed+0x2a/0x105
 [<c0446b8c>] ? lock_release_holdtime+0x43/0x48
 [<c043f742>] ? up_read+0x16/0x29
 [<c05076f8>] ? pci_get_slot+0x66/0x72
 [<e08e89ca>] mpt_attach+0x881/0x9b1 [mptbase]
 [<e091c8e5>] mptspi_probe+0x11/0x354 [mptspi]

Noticing that every caller of mpt_config has its CONFIGPARMS struct
declared on the stack and thus the &pCfg->timer is always on the stack I
changed init_timer() to init_timer_on_stack() and it seems to have shut
up.....

Cc: "Moore, Eric Dean" <Eric.Moore@lsil.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: N"Desai, Kashyap" <Kashyap.Desai@lsi.com>
Cc: <stable@kernel.org>		[2.6.29.x]
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)

Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)

Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: NAlan Cox <alan@redhat.com>
Cc: Eric Moore <eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Impact: fix bug

the third param in module_param(,,) is perm instead of default value.
we still need to assign default at first.  Also, the default is now
zero not one, so fix the parameter text to reflect that.
Signed-off-by: NYinghai Lu <yinghai@kernel.org>
Acked-by: NKashyap Desai <kadesai@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Signed-off-by: NKashyap Desai <kadesai@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Added support for MSI enable/disable for different buses FC,SPI,SAS
instead of having single MSI enable/disable feature.
Signed-off-by: NKashyap Desai <kadesai@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

This Patch is submitted to increment the MPI headers used by LSI MPT
fusion drivers to the latest version 01.05.19.  Year is changed in
CopyRight.
Signed-off-by: NKashyap Desai <kadesai@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Convert to net_device_ops and internal net_device_stats
Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If the NULL test is necessary, then the dereference should be moved below
the NULL test.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/).

// <smpl>
@disable is_null@
identifier f;
expression E;
identifier fld;
statement S;
@@

+ if (E == NULL) S
  f(...,E->fld,...);
- if (E == NULL) S

@@
identifier f;
expression E;
identifier fld;
statement S;
@@

+ if (!E) S
  f(...,E->fld,...);
- if (!E) S
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>
Acked-by: N"Prakash, Sathya" <Sathya.Prakash@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

ARRAY_SIZE is more concise to use when the size of an array is divided by
the size of its type or the size of its first element.
Signed-off-by: NJulia Lawall <julia@diku.dk>
Acked-by: N"Prakash, Sathya" <Sathya.Prakash@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Remove excess kernel-doc function parameter notation:

Warning(drivers/message/fusion/mptbase.c:964): Excess function parameter or struct member 'handle' description in 'mpt_free_msg_frame'
Warning(drivers/message/fusion/mptbase.c:5434): Excess function parameter or struct member 'portnum' description in 'mpt_findImVolumes'
Warning(drivers/message/fusion/mptbase.c:6949): Excess function parameter or struct member 'mr' description in 'mpt_spi_log_info'
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
cc: Eric.Moore@lsi.com
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

A bug in the fusion driver was exposed by the switch to block timeout.
Basically, drivers are supposed to terminate commands once error
handling begins on them.  The fusion apparently wasn't doing this.
Under the old timeout regime, completions on terminated commands would
by and large get ignored because of the way command timeouts used to
work. The new block timers are very intolerant to this, though,
becuase the request gets cleaned and freed.

Fixes: http://bugzilla.kernel.org/show_bug.cgi?id=12195Reported-by: NAlex Shi <alex.shi@intel.com>
Tested-by: NMing Lin <ming.m.lin@intel.com>
Cc: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Simply replace netdev->priv with netdev_priv().
Signed-off-by: NWang Chen <wangchen@cn.fujitsu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This triggers false bug reports as it does a bogus kmalloc with locks held
but is never really compiled into the kernel.

Closes #8329
Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

As it is, all instances of ->release() for files that have ->fasync()
need to remember to evict file from fasync lists; forgetting that
creates a hole and we actually have a bunch that *does* forget.

So let's keep our lives simple - let __fput() check FASYNC in
file->f_flags and call ->fasync() there if it's been set.  And lose that
crap in ->release() instances - leaving it there is still valid, but we
don't have to bother anymore.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

A number of places still use %02x:...:%02x because it's
in debug statements or for no real reason. Make a few
of them use %pM.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Make SPI timeout 10s the same as SAS
Signed-off-by: NBernd Schubert <bs@q-leap.de>
Acked-by: N"Prakash, Sathya" <Sathya.Prakash@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

[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>

Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Kobjects do not have a limit in name size since a while, so stop
pretending that they do.
Signed-off-by: NKay Sievers <kay.sievers@vrfy.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

When the firmware is in Fault state it will be identifed only when the next time
the driver access the IOC state.
This patch includes a polling function in the driver which will be executed in
regular interval to check the status of the firmware and if it is in Fault
state, then the firmware will be reset by the driver.
Signed-off-by: NSathya Prakash <sathya.prakash@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

The initial period is set to 0xFF
Signed-off-by: NSathya Prakash <sathya.prakash@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

There's a fault on the FC controllers that makes them not respond
correctly to MSI.  The SPI controllers are fine, but are likely to be
onboard on older motherboards which don't handle MSI correctly, so
default both these cases to disabled.  Enable by setting the module
parameter mpt_msi_enable=1.

For the SAS case, enable MSI by default, but it can be disabled by
setting the module parameter mpt_msi_enable=0.

Cc: "Prakash, Sathya" <sathya.prakash@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

The problem here is that if the ioc faults too early in the bring up
sequence (as it usually does for an irq routing problem), ioc_reset gets
called before the scsi host is even allocated.  This causes an oops when
it later schedules a renegotiation.  Fix this by checking ioc->sh before
trying to renegotiate.

Cc: "Moore, Eric" <Eric.Moore@lsi.com>
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

It looks like this driver really needs the BKL here.
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

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>

Updating driver version to 3.04.07 from 3.04.06
Signed-off-by: NSathya Prakash <sathya.prakash@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

This patch makes the needlessly global struct mpt_proc_root_dir static.
Signed-off-by: NAdrian Bunk <bunk@kernel.org>
Acked-by: N"Prakash, Sathya" <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>

It's big, but there doesn't seem to be a way to split it up smaller...
Signed-off-by: NTony Jones <tonyj@suse.de>
Signed-off-by: NKay Sievers <kay.sievers@vrfy.org>
Cc: Roland Dreier <rolandd@cisco.com>
Cc: Sean Hefty <sean.hefty@intel.com>
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

There's a problem with the combination of the upstream power
management fixes and the enabling of MSI by default in that the
suspend path still uses the global variable.  Convert it to check
ioc->msi_enable.

Cc: "Moore, Eric" <Eric.Moore@lsi.com>
Cc: "Prakash, Sathya" <sathya.prakash@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>