History log of /drivers/message/fusion/mptscsih.c
Revision Date Author Comments
9f21316fc2f297efd32b40a57083d5cecb4bda26 25-Jun-2014 Joe Lawrence <joe.lawrence@stratus.com> mptfusion: tweak null pointer checks

Fixes the following smatch warnings:

drivers/message/fusion/mptbase.c:652 mptbase_reply() warn: variable
dereferenced before check 'reply' (see line 639)

[JL: No-brainer, the enclosing switch statement dereferences
reply, so we can't get here unless reply is valid.]

drivers/message/fusion/mptsas.c:1255 mptsas_taskmgmt_complete() error:
we previously assumed 'pScsiTmReply' could be null (see line 1227)

[HCH: Reading the code in mptsas_taskmgmt_complete it's pretty
obvious that it can't do anything useful if mr/pScsiTmReply are
NULL, so I suspect it would be best to just return at the
beginning of the function.

I'd love to understand if it actually could ever be zero, which I
doubt. Maybe the LSI people can shed some light on that?]

drivers/message/fusion/mptsas.c:3888 mptsas_not_responding_devices()
error: we previously assumed 'port_info->phy_info' could be null
(see line 3875)

[HCH: It's pretty obvious from reading mptsas_sas_io_unit_pg0 that
we never register a port_info with a NULL phy_info in the lists,
so all NULL checks on it could be deleted.]

drivers/message/fusion/mptscsih.c:1284 mptscsih_info() error:
we previously assumed 'h' could be null (see line 1274)

[HCH: shost_priv can't return NULL, so the if (h) should be
removed.]

drivers/message/fusion/mptscsih.c:1388 mptscsih_qcmd() error: we
previously assumed 'vdevice' could be null (see line 1373)

[HCH: vdevice can't ever be NULL here, it's allocated in
->slave_alloc and thus guaranteed to be around when
->queuecommand is called.]

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
9cb78c16f5dadefd8dc5ba0ae5a2f26cd59419b3 25-Jun-2014 Hannes Reinecke <hare@suse.de> scsi: use 64-bit LUNs

The SCSI standard defines 64-bit values for LUNs, and large arrays
employing large or hierarchical LUN numbers become more and more
common.

So update the linux SCSI stack to use 64-bit LUN numbers.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Ewan Milne <emilne@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
a48ac9e5d4f3555bdec2fd61e49fc71b26810d68 27-Mar-2014 Matthew Wilcox <matthew.r.wilcox@intel.com> fusion: Remove use of DEF_SCSI_QCMD

Removing the host_lock from the I/O submission path gives a huge
scalability improvement.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Reviewed-by: Nicholas Bellinger <nab@linux-iscsi.org>
Reviewed-by: Praveen Krishnamoorthy <Praveen.krishnamoorthy@lsi.com>
Acked-by: Sreekanth Reddy <Sreekanth.reddy@lsi.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
cac197031ce274efff8a5abea811b9d69ae3d740 31-Mar-2013 Al Viro <viro@zeniv.linux.org.uk> fusion: switch to ->show_info()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
3012d60b39761b0bf73e3be677d2f8e424f0b294 18-Dec-2012 Alan Cox <alan@linux.intel.com> drivers/message/fusion/mptscsih.c: missing break

This happens to do the right thing in all cases on fibre channel but not on
other media types

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Nagalakshmi Nandigama <nagalakshmi.nandigama@lsi.com>
Cc: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
513382c9a2bb24c606a9027e83af4bc86dbe688b 19-Sep-2011 nagalakshmi.nandigama@lsi.com <nagalakshmi.nandigama@lsi.com> [SCSI] mptfusion: Added check for SILI bit in READ_16 CDB for DATA UNDERRUN ERRATA

When READ_16 command is issued, the setting of SILI Bit in CDB is confirmed
and if SILI bit is off, the processing of relavent Errata is executed.

Added code for checking SILI bit for READ_16 as described in "SSC-4".

Signed-off-by: Nagalakshmi Nandigama <nagalakshmi.nandigama@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
98cbe371fd373f13806595835b79da07f3a2f934 05-Aug-2011 kashyap.desai@lsi.com <kashyap.desai@lsi.com> [SCSI] mptfusion: Fix for device offline while doing aggressive HBA reset

[Resend patch as per Bernd Schubert comment ]

Issue:

Device goes offline while doing aggressive HBA reset
along with IO using some utility.

Root cause:

FW goes into bad state due to aggressive reset. Softreset does not
help to recover FW. And also aggressive reset open up the window for
Error handling thread to kicked off at the same time HBA will be in
constant RESET loop as part of aggressive reset test case can lead
Device to goes offline.

Changes:

1. Added extra check as below inside eh_timed_out call back as below.
if(ioc->ioc_reset_in_progress) Rc = EH_TIMER_RESET

2. Removed " DOORBELL_ACTIVE" check for SAS controller from task
management context. Since SAS controller uses high priority queue
for task management. This check is not required for SAS controller.

3. Moved SoftReset call to HardReset from Task Mgmt context.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
e62cca19a9bbfc72c62632d95a7c01cd6476708c 04-Aug-2011 kashyap.desai@lsi.com <kashyap.desai@lsi.com> [SCSI] mptfusion: Better handling of DEAD IOC PCI-E Link down error condition

Find Non-Operation IOC and remove it from OS: Detecting
dead(non-functional) ioc will be done reading doorbell register value
from fault reset thread, which has been called from work thread
context after each specific interval. If doorbell value is 0xFFFFFFFF,
it will be considered as IOC is non-operational and marked as dead
ioc.

Once Dead IOC has been detected, it will be removed at pci layer using
"pci_remove_bus_device" API.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
e466e1c6e14e211e0ece86bdb0810b1b9c1a59a8 20-Jul-2011 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mptfusion : Added check for SILI bit in READ_6 CDB for DATA UNDERRUN ERRATA

When READ_6 command is issued, the setting of SILI Bit in CDB is confirmed and
if SILI bit is off, the processing of relavent Errata is executed.

Earlier we did not have check for SILI bit in READ_6 CDB.
As described in "ssc-r22", Now Driver is checking SILI bit for READ_6.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
56cee8d57744ec5782e3a8722c1bc45951d2c037 25-Apr-2011 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mptfusion: Remove debug print from mptscsih_qcmd()

Remove debug print from mptscsih_qcmd function call.
This debug print cause flood of prints and difficult to debug other issues.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
aeaeb5cec5a5477b392e627883fdb46d8a5dcc1f 04-Apr-2011 Christoph Hellwig <hch@infradead.org> [SCSI] fusion: do not check serial_number in the abort handler

The SCSI midlayer stops all command processing when in error handling, which
means there is no chance for command reuse when the abort handler is called.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
bcfe42e98047f1935c5571c8ea77beb2d43ec19d 10-Feb-2011 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mptfusion: Fix Incorrect return value in mptscsih_dev_reset

There's a branch at the end of this function that
is supposed to normalize the return value with what
the mid-layer expects. In this one case, we get it wrong.

Also increase the verbosity of the INFO level printk
at the end of mptscsih_abort to include the actual return value
and the scmd->serial_number. The reason being success
or failure is actually determined by the state of
the internal tag list when a TMF is issued, and not the
return value of the TMF cmd. The serial_number is also
used in this decision, thus it's useful to know for debugging
purposes.

Cc: stable@kernel.org
Reported-by: Peter M. Petrakis <peter.petrakis@canonical.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
c9de7dc48307395fb71780b567ae8833b080d1c8 26-Jul-2010 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mptfusion: Block Error handling for deleting devices or Device in DMD

Issue description:
In multipath topology, when device deletion is in transient state,
multipath driver can call blk_flush_queue() as part of path failure.
Before device get deleted from OS, Device may go OFFLINE as part of error
handling kicked off triggered from multipathing driver. Above condition hits
more frequently if device missing delay timer (which is LSI specific firmware
parameter) is non zero value.

root cause of this issue is Error handling thread is getting kicked off for
device which is not really present(in transient state of deleting).

This patch has solution for this issue. driver is now using eh_timed_out
callback. See below.

mptsas_transport_template->eh_timed_out = mptsas_eh_timed_out

Using mptsas_eh_timed_out function, driver can decide weather vdevice is
under Device missing delay or deleting state.

for either of those cases, there is BLK_EH_RESET_TIMER return to scsi mid
and error handling thread will not be kicked off for that particular scsi
command.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
97009a29e8c999def2d1e9ef253c226daf9541af 22-Jun-2010 Kei Tokunaga <tokunaga.keiich@jp.fujitsu.com> [SCSI] mptfusion: print Doorbell register in a case of hard reset and timeout

Printing Doorbell register in a case of hard reset and timeout
should be useful for figuring out the state of the system.

Signed-off-by: Kei Tokunaga <tokunaga.keiich@jp.fujitsu.com>
Acked-by: "Desai, Kashyap" <Kashyap.Desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
b68bf096d4211bb6490955f86842d8291e8ae218 17-Jun-2010 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mptfusion: schedule_target_reset from all Reset context

Issue:
target reset will be queued to driver's internal queue to get schedule
later. When driver add target into internal target_reset queue we will block IOs
on those target using scsi midlayer API. Now due to some cause driver is not
executing those target_reset list and it is always in block state.

Changes:
now we are clearing target_reset queue from all other Callback context
instead of only DeviceReset context.Now wherever driver is clearing
taskmgmt_in_progress flag it is considering target_reset queue cleanup
also.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
4d0695664ed8e168f97cce86289d0c5fab35b067 17-Jun-2010 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mptfusion: Use DID_TRANSPORT_DISRUPTED instead of DID_BUS_BUSY

Changed the return value for Nexus Loss IOs to be DID_TRANSPORT_DISRUPTED.
What this will allow is the multi-path driver to delay the fail over
process. They would like the path to keep up as long as the nexus loss
Loginfo is return from firmware. With DID_BUS_BUSY the path fails over
immediately.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2a1b7e575b80ceb19ea50bfa86ce0053ea57181d 27-Apr-2010 Ryan Kuester <rkuester@kspace.net> [SCSI] mptsas: fix hangs caused by ATA pass-through

I may have an explanation for the LSI 1068 HBA hangs provoked by ATA
pass-through commands, in particular by smartctl.

First, my version of the symptoms. On an LSI SAS1068E B3 HBA running
01.29.00.00 firmware, with SATA disks, and with smartd running, I'm seeing
occasional task, bus, and host resets, some of which lead to hard faults of
the HBA requiring a reboot. Abusively looping the smartctl command,

# while true; do smartctl -a /dev/sdb > /dev/null; done

dramatically increases the frequency of these failures to nearly one per
minute. A high IO load through the HBA while looping smartctl seems to
improve the chance of a full scsi host reset or a non-recoverable hang.

I reduced what smartctl was doing down to a simple test case which
causes the hang with a single IO when pointed at the sd interface. See
the code at the bottom of this e-mail. It uses an SG_IO ioctl to issue
a single pass-through ATA identify device command. If the buffer
userspace gives for the read data has certain alignments, the task is
issued to the HBA but the HBA fails to respond. If run against the sg
interface, neither the test code nor smartctl causes a hang.

sd and sg handle the SG_IO ioctl slightly differently. Unless you
specifically set a flag to do direct IO, sg passes a buffer of its own,
which is page-aligned, to the block layer and later copies the result
into the userspace buffer regardless of its alignment. sd, on the other
hand, always does direct IO unless the userspace buffer fails an
alignment test at block/blk-map.c line 57, in which case a page-aligned
buffer is created and used for the transfer.

The alignment test currently checks for word-alignment, the default
setup by scsi_lib.c; therefore, userspace buffers of almost any
alignment are given directly to the HBA as DMA targets. The LSI 1068
hardware doesn't seem to like at least a couple of the alignments which
cross a page boundary (see the test code below). Curiously, many
page-boundary-crossing alignments do work just fine.

So, either the hardware has an bug handling certain alignments or the
hardware has a stricter alignment requirement than the driver is
advertising. If stricter alignment is required, then in no case should
misaligned buffers from userspace be allowed through without being
bounced or at least causing an error to be returned.

It seems the mptsas driver could use blk_queue_dma_alignment() to advertise
a stricter alignment requirement. If it does, sd does the right thing and
bounces misaligned buffers (see block/blk-map.c line 57). The following
patch to 2.6.34-rc5 makes my symptoms go away. I'm sure this is the wrong
place for this code, but it gets my idea across.

Acked-by: "Desai, Kashyap" <Kashyap.Desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
9b8f77a184fcc44349c547be944ba921fd4247b3 24-May-2010 Ben Hutchings <ben@decadent.org.uk> fusion: fix kernel-doc notation

The function name must be followed by a space, hypen, space, and a
short description.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
69b2e9b4431798645e3d8fb51413db97c9845db1 18-Mar-2010 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mptfusion: Task abort is not supported for Volumes

1) corrected return value as SUCCESS instead of 0.
2) Added check in mptscsih_abort.
mptfusion do not support task abort for Volumes.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
08f5c5c23d52aa385ff304becffb0e0c37cedfe5 18-Mar-2010 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mptfusion: sanity check for vdevice pointer is added

Added sanity checks before accessing vdevice and added vdevice->deleted
setting for mptfc.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
48959f1eae3068fefb3de05cdc0c2bd8f0f96c37 18-Mar-2010 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mptfusion: mpt_detach is called properly at the time of rmmod

Current design of mptsas is as follow.
MPTSAS will do probe() if pci id matches for available card in
system, irrespective of mode of controller. If controller is I/T mode
or I mode, things are fine. If controller is only in T mode, mptsas is
not doing complete process of mptsas_probe(). It will only make
sure IOC structure is created and IOC reference is available for
mptstm driver. Now While removing module we should take care
case of Target mode only mptsas. If we are removing IOC which is
only in Target mode, We should only detach IOC instead of
following rest of the cleanup process which is only required for T
mode controller. Now For T mode controller, only part clean up is
done instead of complete cleanup. mpt_detach will call early in case
of Target mode only controller.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
d0f698c46141e1d179fb3a86a0ae668d2fd12916 18-Mar-2010 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mptfusion: Added new less expensive RESET (Message Unit Reset)

Message Unit Reset - instructs the IOC to reset the Reply Post and
Free FIFO's. All the Message Frames on Reply Free FIFO are
discarded. All posted buffers are freed, and event notification is
turned off. IOC doesnt reply to any outstanding request. This will
transfer IOC to READY state. Message unit ready is less expensive
operations than Hard Reset. soft reset will not force Firmware to
reload again, it only do clean up of Message units.

mpt_Soft_Hard_ResetHandler will first try for Soft Reset,if
it fails then go for big hammer reset which is Hard Reset.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
5a0e3ad6af8660be21ca98a971cd00f331318c05 24-Mar-2010 Tejun Heo <tj@kernel.org> include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.

2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).

* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
9858ae38011d699d4c2fa7f3493a47accf43a0f5 25-Jan-2010 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mptfusion : mptscsih_abort return value should be SUCCESS instead of value 0.

retval should be SUCCESS/FAILED which is defined at scsi.h
retval = 0 is directing wrong return value. It must be retval = SUCCESS.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
65f89c2396aa113a06fe7e2f6ba46f0712cb4806 16-Dec-2009 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mptfusion: Added MPI_SCSIIO_CONTROL_HEADOFQ priority

There is a 'ioprio' field in the BIO and the Request structure.
check this priority field and set MPI_SCSIIO_CONTROL_HEADOFQ
to pass down I/O priority.
An enhancement to the LSI Disk Array Controller firmware is being
developed to look at the Head Of Queue bit to allow I/Os with the HOQ bit
set to be processed before I/Os which do not have the HOQ bit set.
In order to set the HOQ bit, the mpt fusion driver needs to look at the
'ioprio' field in the request structure associated with the scsi command.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
e881a172dac4d9ea3b2a1540041d872963c269bd 16-Oct-2009 Mike Christie <michaelc@cs.wisc.edu> [SCSI] modify change_queue_depth to take in reason why it is being called

This patch modifies scsi_host_template->change_queue_depth so that
it takes an argument indicating why it is being called. This will be
used so that if a LLD needs to do some extra processing when
handling queue fulls or later ramp ups, it can do so.

This is a simple port of the drivers setting a change_queue_depth
callback. In the patch I just have these LLDs adjust the queue depth
if the user was requesting it.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>

[Vasu.Dev: v2
Also converted pmcraid_change_queue_depth and then verified
all modules compile using "make allmodconfig" for any new build
warnings on X86_64.

Updated original description after combing two original
patches from Mike to make this patch git bisectable.]
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
[jejb: fixed up 53c700]
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
9b53b39243cf23a0b68eaa16c37ce16eada69a46 07-Oct-2009 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mptspi: Fix for incorrect data underrun errata

Errata:
Certain conditions on the scsi bus may casue the 53C1030 to incorrectly signal
a SCSI_DATA_UNDERRUN to the host.

Workaround 1:
For an Errata on LSI53C1030 When the length of request data
and transfer data are different with result of command (READ or VERIFY),
DID_SOFT_ERROR is set.

Workaround 2:
For potential trouble on LSI53C1030. It is checked whether the length of
request data is equal to the length of transfer and residual.
MEDIUM_ERROR is set by incorrect data.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
fea984034b1ccdb26e8163ed5350ce7f0563b136 02-Sep-2009 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mptsas : Send DID_NO_CONNECT for pending IOs of removed device

Driver is modified to return DID_NO_CONNECT for all pending I/O
requests for bus type SAS, if it founds the target is removed at
the firmware level.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
79a3ec1ace2329d115ecd2445379b46aed3286b0 04-Aug-2009 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mptsas : set max_id to infinite value.

Do not set max_id value received from FW. Once SAS transport layer is
introduced max_id value is missleading to SCSI mid layer. Use max_id to
infinite value.

logic of can queue of scsi host is changed.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
d23321b4880fb7a95fa58277fafb98a4368b4c92 04-Aug-2009 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mptsas : Handle INSUFFICIENT resources status as similar to IOC BUSY status

Handle insufficient resources status as similar to busy status.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
a247fa4521ccec7cb82a9f2d4e8544fce27ea109 04-Aug-2009 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mptsas : Removed mptscsih_timer_expired.

Removed mptscsih_timer_expired. This timer is no more use.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
9cf46a35d25debfc314dd6f090b8075bd0b7f74c 14-Jun-2009 Randy Dunlap <randy.dunlap@oracle.com> fusion: fix recent kernel-doc problems

Fix recent fusion driver kernel-doc fatal error and warnings.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Eric.Moore@lsi.com
Cc: support@lsi.com
Cc: DL-MPTFusionLinux@lsi.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fc847ab4318cd6ab6c231739ad51d2502d19a87a 10-Jun-2009 James Bottomley <James.Bottomley@HansenPartnership.com> [SCSI] mpt fusion: fix up doc book comments

Several of the doc book in the previous patches had incorrect multi-line short
function descriptors. Fixed it all to be the correct single line descriptor.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
db7051b2984d2c7d44b6178ad4c523500dff7f7c 29-May-2009 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mpt fusion: Added support for Broadcast primitives Event handling

Firmware is able to handle Broadcast primitives, but upstream driver does not
have support for broadcast primitive handling. Now this patch is mainly to
support broadcast primitives.

Signed-off-by: Kashyap Desai <kadesai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
a7938b0bb3b458fe0723608be3db6c4ed8d79a8c 29-May-2009 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mpt fusion: RAID device handling and Dual port Raid support is added

1. Handle integrated Raid device(Add/Delete) and error condition and check
related to Raid device. is_logical_volume will represent logical volume
device.
2. Raid device dual port support is added. Main functions to support this
feature are mpt_raid_phys_disk_get_num_paths and mpt_raid_phys_disk_pg1.

Signed-off-by: Kashyap Desai <kadesai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2f187862e579f1f5e883188cab6bd867cb60387f 29-May-2009 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mpt fusion: Code Cleanup patch

Resending patch considering Grants G's code review.

Main goal to submit this patch is code cleaup.
1. Better driver debug prints and code indentation.
2. fault_reset_work_lock is not used anywhere. driver is using taskmgmt_lock
instead of fault_reset_work_lock.
3. setting pci_set_drvdata properly.
4. Ingore config request when IOC is in reset state.( ioc_reset_in_progress
is set).
5. Init/clear managment frame proprely.(INITIALIZE_MGMT_STATUS and
CLEAR_MGMT_STATUS)

Signed-off-by: Kashyap Desai <kadesai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
ea2a788de4ce5ebab09276e25443f55592af2335 29-May-2009 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mpt fusion: rewrite of ioctl_cmds internal generated function

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: Kashyap Desai <kadesai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
e7deff3374cc5951f914dcb3c66bc1b8de8a084e 29-May-2009 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mpt fusion: Adding DeviceResetCtx for internal Device reset frame

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: Kashyap Desai <kadesai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
1ba9ab2eb2c53df52e498779e14cf4e5ea77b0ad 29-May-2009 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mpt fusion: rewrite taskmgmt request and completion routines

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: Kashyap Desai <kadesai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
37c60f374a855974c27bd30d5662a8fa5e933792 29-May-2009 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mpt fusion: rewrite of all internal generated functions

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: Kashyap Desai <kadesai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
14d0f0b063f5363984dd305a792854f9c23e9e97 29-May-2009 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mpt fusion: Fixing 1078 data corruption issue for 36GB memory region

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: Kashyap Desai <kadesai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2f4c782c2e06fbaef2ac2b6b7abd796b96abd98b 06-Jan-2009 Kashyap, Desai <kashyap.desai@lsi.com> [SCSI] mpt fusion: Add Firmware debug support

Signed-off-by: Kashyap Desai <kadesai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
a6da74cb077e88a604e5b2a6663b44c221f0ae75 15-Dec-2008 James Bottomley <James.Bottomley@HansenPartnership.com> [SCSI] mpt fusion: clear list of outstanding commands on host reset

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=12195

Reported-by: Alex Shi <alex.shi@intel.com>
Tested-by: Ming Lin <ming.m.lin@intel.com>
Cc: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
22ab019b6ff8f3f93ddc93135d7e7ff24d982fe0 23-Sep-2008 Bernd Schubert <bs@q-leap.de> [SCSI] mptfusion: Increase scsi-timeouts, similariy to the LSI 4.x driver.

Make SPI timeout 10s the same as SAS

Signed-off-by: Bernd Schubert <bs@q-leap.de>
Acked-by: "Prakash, Sathya" <Sathya.Prakash@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
cadbd4a5e36dde7e6c49b587b2c419103c0b7218 04-Jul-2008 Harvey Harrison <harvey.harrison@gmail.com> [SCSI] replace __FUNCTION__ with __func__

[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: Harvey Harrison <harvey.harrison@gmail.com>
Cc: SCSI List <linux-scsi@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
cddc0ab71194a09c0ac359be10a0f1ef976ddc95 20-May-2008 Prakash, Sathya <sathya.prakash@lsi.com> [SCSI] mpt fusion : Updated copyright statment with 2008 included

Updating copyright statement to include the year 2008

Signed-off-by: Sathya Prakash <sathya.prakash@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
7ba2db5f38955907e46a65c9334d287cd3da32c2 13-Mar-2008 Michael Reed <mdr@sgi.com> [SCSI] fusion mpt: fix target missing after resetting external raid

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: Michael Reed <mdr@sgi.com>
Acked-by: "Moore, Eric" <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
ee959b00c335d7780136c5abda37809191fe52c3 22-Feb-2008 Tony Jones <tonyj@suse.de> SCSI: convert struct class_device to struct device

It's big, but there doesn't seem to be a way to split it up smaller...

Signed-off-by: Tony Jones <tonyj@suse.de>
Signed-off-by: Kay 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: Greg Kroah-Hartman <gregkh@suse.de>
ed5f606fef22e515331aab4c1f927775cf4af70e 09-Mar-2008 Matthias Kaehlcke <matthias@kaehlcke.net> [SCSI] mpt fusion: convert inactive_list_mutex to a mutex

the semaphore inactive_list_mutex is used as a mutex, convert it to
the mutex API

Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Acked-by: "Moore, Eric" <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
4d4109d0eb6930e59942d019980b83af679f187b 07-Mar-2008 Prakash, Sathya <sathya.prakash@lsi.com> [SCSI] mpt fusion: Power Management fixes for MPT SAS PCI-E controllers

The system power state changes like hibernation and standby are not happening
properly with 106XE controllers, this patch modifies the driver to free
resources and allocate resources in power management entry points

[jejb: compile fixes for upstream]

Signed-off-by: Sathya Prakash <sathya.prakash@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
ab3b0be84c3877dd0cccef38693254b83782bb70 01-Mar-2008 Randy Dunlap <randy.dunlap@oracle.com> [SCSI] docbook: fix fusion source files

Fix docbook problems in fusion source files.
These cause the generated docbook to be incorrect.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
7105a387a8ac9b512b900efd5ff7a97acc44fb39 01-Mar-2008 Randy Dunlap <randy.dunlap@oracle.com> docbook: fix fusion source files

Fix docbook problems in fusion source files.
These cause the generated docbook to be incorrect.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fc1323bb75ef8ae70f99cd6a386cc659a5b85696 03-Feb-2008 Joe Perches <joe@perches.com> drivers/message/: Spelling fixes

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
b80ca4f7ee36c26d300c5a8f429e73372d153379 13-Jan-2008 FUJITA Tomonori <tomof@acm.org> [SCSI] replace sizeof sense_buffer with SCSI_SENSE_BUFFERSIZE

This replaces sizeof sense_buffer with SCSI_SENSE_BUFFERSIZE in
several LLDs. It's a preparation for the future changes to remove
sense_buffer array in scsi_cmnd structure.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
ed17b031e0aa83177c38ad48c3b9fcc3895653f6 16-Jul-2007 Jens Axboe <jens.axboe@oracle.com> Fusion: sg chaining support

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
23f9b75e79f6fbe438a20d10a11ca45a14b8a584 16-Oct-2007 Randy Dunlap <randy.dunlap@oracle.com> docbook: fix kernel-api content

Fix kernel-api docbook warnings.

Warning(linux-2.6.23-git8//drivers/message/fusion/mptscsih.c:2618): No description found for parameter 'sc'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
c51d0beaaed902ef48ed1f3b1834d37b7ffd55e8 29-Sep-2007 Eric Moore <eric.moore@lsi.com> [SCSI] mpt fusion: fix up fusion prints using the sdev_printk, dev_printk, and shost_printk API

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: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
e8206381f5842269691f3164ec0d79b7059bd710 29-Sep-2007 Eric Moore <eric.moore@lsi.com> [SCSI] mpt fusion: lock down ScsiLookup

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: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
e7eae9f6e94cd49261c2997b0b4f768c1351bc02 29-Sep-2007 Eric Moore <eric.moore@lsi.com> [SCSI] mpt fusion: add use of shost_priv and remove all the typecasting

The driver is currently typecasting to obtain the shost hostdata. The
driver is updated to use the shost_priv macro.

Signed-off-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
e80b002bfd38263117da93feb4f67f5cf7d9221b 15-Sep-2007 Eric Moore <eric.moore@lsi.com> [SCSI] mpt fusion: removing references to hd->ioc

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: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
a69de507aae293e32d22e873f34f25f49b2db3b2 15-Sep-2007 Eric Moore <eric.moore@lsi.com> [SCSI] mpt fusion: rename vdev to vdevice

common naming of vdevice through out driver

Signed-off-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
29dd3609f2fc70e02ce48123485b14d9417b834f 15-Sep-2007 Eric Moore <eric.moore@lsi.com> [SCSI] mpt fusion: standardize printks and debug info

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: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
f36789e22ac32a6554b8e4d05ab6125fc1161745 14-Aug-2007 Prakash, Sathya <sathya.prakash@lsi.com> [SCSI] mpt fusion: Change company name from LSI Logic to LSI

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: Sathya Prakash <sathya.prakash@lsi.com>
Acked-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
7a195f464e0692607aca8150c8489a838fab684b 14-Aug-2007 Prakash, Sathya <sathya.prakash@lsi.com> [SCSI] mpt fusion: Usage of high priority request FIFO to send task management commands

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: Sathya Prakash <sathya.prakash@lsi.com>
Acked-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
6757d6b4c0701866bbf2ac02c397f78879b75e58 25-Jul-2007 Prakash, Sathya <sathya.prakash@lsi.com> [SCSI] mpt fusion: Changes in mptscsih.c for logging support

This patch contains changes in mptscsih.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

A new sysfs attribute is added to retrieve and modify the debug level.

signed-off-by: Sathya Prakash <sathya.prakash@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
edb9068d0d7a3ba92f66b8c86cba625f3a439f64 17-Jul-2007 Prakash, Sathya <sathya.prakash@lsi.com> [SCSI] mpt fusion: add sysfs attributes to display IOC parameters

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: Sathya Praksh <sathya.prakash@lsi.com>
Acked-by: "Moore, Eric" <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
cc78d30af0823f33069fb4813c47571d4e0675a2 16-Jun-2007 Eric Moore <eric.moore@lsi.com> [SCSI] mpt fusion: fix for mounted raid volume filesytem that goes read-only

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: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
958d4a32077f1d7d863e67f40f81c577c3c0c037 16-Jun-2007 Eric Moore <eric.moore@lsi.com> [SCSI] mpt fusion: cleanup eh handlers

nice cosmetic cleaning of eh thread callback funtions

Signed-off-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
caa5dea19d4853f71b091cad8fde75e6f14ff1be 14-Jun-2007 Eric Moore <eric.moore@lsi.com> [SCSI] mpt fusion: remove unused header - linux_compat.h

remove unused header

Signed-off-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
16d201016a9f29e0557849907352769c63cef259 14-Jun-2007 Eric Moore <eric.moore@lsi.com> [SCSI] mpt fusion: update MAINTAINERS (fusion part)

Update assocated fusion sources with new support email address.

Signed-off-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
1928d73fac9a38be901dd5c9eb8b18b56ce9e18d 25-May-2007 FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> [SCSI] fusion: convert to use the data buffer accessors

- 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: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Eric Moore <eric.moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
3d9780b97667fcd63159c0933fdce75465da6c70 22-May-2007 Dave Jones <davej@redhat.com> [SCSI] fusion: Fix |/|| confusion

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: Dave Jones <davej@redhat.com>
Acked-by: "Moore, Eric" <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
ad8c31bb69d60c0c6bc6431bccdf67e5a96c0d31 19-Mar-2007 Eric Moore <eric.moore@lsi.com> [SCSI] fusion: remove VMWare guest OS remounted as read only work around

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: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
b364fd5081b02fa8a966a29eea2da628913fd4b8 19-Mar-2007 Horms <horms@verge.net.au> [SCSI] fusion: honour return value of pci_enable_device() in mpt_resume()

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: Simon Horman <horms@verge.net.au>
Acked-by: "Moore, Eric" <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
a1f9ce056a1875b6c8633f370df4fb169b925b16 16-Mar-2007 Horms <horms@verge.net.au> [SCSI] fusion: remove unnecessary code in mptscsih_resume()

It seems that most of the code in mptscsih_resume() doesn't
do anything. This patch removes that code.

Signed-off-by: Simon Horman <horms@verge.net.au>
Acked-by: "Moore, Eric" <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
1544d67738c864245b8a061fb72093daeea8d4f1 20-Feb-2007 Randy Dunlap <randy.dunlap@oracle.com> [SCSI] fusion: kernel-doc warning fixes

Fix kernel-doc warnings in fusion driver code.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: "Moore, Eric" <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
cd354f1ae75e6466a7e31b727faede57a1f89ca5 14-Feb-2007 Tim Schmielau <tim@physik3.uni-rostock.de> [PATCH] remove many unneeded #includes of sched.h

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: Tim Schmielau <tim@physik3.uni-rostock.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
07c861d6d9ca3dc58e225bcfe2da0f378af6fa6c 29-Jan-2007 Eric Moore <eric.moore@lsi.com> [SCSI] fusion - bump version - 3.04.04

bump version, and fix email addr for lsi support

Signed-off-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
cd2c61911dfe0d87cb872571739d5838cc233747 29-Jan-2007 Eric Moore <eric.moore@lsi.com> [SCSI] fusion - error handling bug fix's

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: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
b506ade9f3c309ac2ce3ffc4039f731097506038 29-Jan-2007 Eric Moore <eric.moore@lsi.com> [SCSI] fusion - inactive raid support, and raid event bug fix's

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: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
c6c727a1a0ff90c80425b7226557b2354e00cf7b 29-Jan-2007 Eric Moore <eric.moore@lsi.com> [SCSI] fusion - iocstatus, loginfo, and event debug updates

various string updates for iocstatus, logingo, and fw asyn events.

Signed-off-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
5a9c47b1344b514758d5d7f193c672850390cc36 29-Jan-2007 Eric Moore <eric.moore@lsi.com> [SCSI] fusion - move SPI API over to mptspi.c

Move some functions that only apply to the mptspi module over from mptscsih.c

Signed-off-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
793955f549c710a1b0c18f823d5d710840747b15 29-Jan-2007 Eric Moore <eric.moore@lsi.com> [SCSI] fusion - Greater than 255 target and lun support

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: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
9f4203b357d46a66c042df3dedf277ccaa5e2b1d 05-Jan-2007 Eric Moore <eric.moore@lsil.com> [SCSI] fusion: MODULE_VERSION support

* Add modinfo driver version support.
* Change copyright year to 2007.

Signed-off-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
f99be43b3024f2dd054f2addd54a318eabee2018 05-Jan-2007 Eric Moore <eric.moore@lsil.com> [SCSI] fusion: power pc and miscellaneous bug fixs

* 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: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
86dd424266530cda55258b2b33d04c23a88b9a9c 05-Jan-2007 Eric Moore <eric.moore@lsil.com> [SCSI] fusion: fibre channel: return DID_ERROR for MPI_IOCSTATUS_SCSI_IOC_TERMINATED

A repost of a patch forwarded by Mikael Reed from 2006-12-20.

The fibre channel IOC may kill a request for a variety of
reasons, some of which may be recovered by a retry, some of
which are unlikely to be recovered. Return DID_ERROR
instead of DID_RESET to permit retry of the command,
just not an infinite number of them.

Signed-off-by: Michael Reed <mdr@sgi.com>
Signed-off-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
d9489fb60614794cbca4b6b173c60ed9388974c6 07-Dec-2006 Randy Dunlap <randy.dunlap@oracle.com> [PATCH] kernel-doc: fix fusion and i2o docs

Correct lots of typos, kernel-doc warnings, & kernel-doc usage in fusion and
i2o drivers.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
3dc0b03fec73339199a995acd5a47478da0b4dc4 12-Jul-2006 Eric Moore <eric.moore@lsil.com> [SCSI] mptfusion: task abort fix's

Fix's to insure proper status is returned to midlayer
when a task abort failed to be aborted by controller
firmware.

Also sanity checks to prevent scsi cmd from being
double completed during error recovery.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
bf4515227c36fde1887f3fc0afc25a9bb4726842 12-Jul-2006 Eric Moore <eric.moore@lsil.com> [SCSI] mptfusion: sas nexus loss support

sas nexus loss support for systems that suport failover.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
786899b013cdf7aeb2aaaf7390c442f02bba24af 12-Jul-2006 Eric Moore <eric.moore@lsil.com> [SCSI] mptfusion: sas enclosures with smart drive

Adding support for sas enclosures with smart drives.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
d6be06c84da9626b10443c664ee55bda96fb3514 24-May-2006 Michael Reed <mdr@sgi.com> [SCSI] mptfc: abort of board reset leaves port dead requiring reboot

The driver uses msleep_interruptible() in the code path responsible
for resetting the card's ports via the lsiutil command. If a
<ctrl-c> is received during the reset it can leave a port in such
a state that the only way to regain its use is to reboot the system.
Changing from msleep_interruptible() to msleep() corrects the problem.

Signed-off-by: Michael Reed <mdr@sgi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
80d3ac77a84987d5132726f3d7cef342a280f7d9 24-May-2006 Michael Reed <mdr@sgi.com> [SCSI] mptfusion: move fc event/reset handling to mptfc

Move fibre channel event and reset handling to mptfc. This will
result in fewer changes over time that need to be applied to
either mptbase.c or mptscsih.c.

Signed-off-by: Michael Reed <mdr@sgi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
65207fedcf57dcb854a3ebb9da43c745106fe8d5 22-Apr-2006 Moore, Eric <Eric.Moore@lsil.com> [SCSI] - fusion - mptfc bug fix's to prevent deadlock situations

mptbase.h

bump version number to 3.03.09

remove unneeded flags
define workq and remove old fc specific locks

mptbase.c

initialize new lock and don't initialize two removed locks

mptscsih.c

when firmware reports target is no longer there, return
DID_REQUEUE for fc hosts so that i/o doesn't get killed until
the transport has an opportunity to manage the loss via its
dev loss timer

when the "eh_abort" routine is called, check to see if the
driver has the command or not before looking to see if a reset
is pending. James Smart and I talked about this and believe
that the API for this routine is: if driver doesn't have
command, return SUCCESS. This change helps prevent a target
from being taken offline. SUCCESS is returned because it's
likely that the command completed after error recovery timed
it out but before it could be aborted.

provide a routine to queue work to newly created workq, and
use it.

remove "ioc" from mptscsih_abort() it was only used one time.
the other references were via hd->ioc, so I just moved it....
net change in references to ioc via hd->ioc is zero

move hd->resetPending test and hd->timeouts increment to after
the test for whether the command to be aborted remains known
to the driver

Make certain that the workq exists before queuing work to it.

mptfc.c

no longer need to lock rport data structures as I was able to
single thread the code! I fixed up the debug code to
eliminate compilation messages due to type mismatch in the
printk. Got rid of some no longer needed rport flags.
Initialize and destroy the workq used for the rescan work.

simplify the logic regarding the increment of
fc_rescan_work_count. use post increment and test for zero
vs. pre increment and test for one; eliminate work_count
variable: queue_work can be called with the work_lock held as
it doesn't sleep

Signed-off-by: Michael Reed <mdr@sgi.com>
Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
bd23e94cd70f18700fc366451a8f1427e56ed137 17-Apr-2006 Moore, Eric <Eric.Moore@lsil.com> [SCSI] mptfusion: bug fix's for raid components adding/deleting

This patch handles case where raid hidden components
are not being removed when power turned off to device
attached to expander, as well as the case of
exposing raid components when power is turned back on
to devices attached to an expander. (This is a repost
of this patch, with mptsas_is_end_device declared
further up in the code.)

This patch contains some other miscellaneous bug fix's.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
f44e5461d919a344d44f7ca4f06cf8d169da8454 14-Mar-2006 Moore, Eric <Eric.Moore@lsil.com> [SCSI] fusion - exposing raid components in mptsas

Suppport for exposing hidden raid components
for sg interface. The sdev->no_uld_attach flag
will set set accordingly.

The sas module supports adding/removing raid
volumes using online storage management application
interface.

This patch rely's on patch's provided to me
by Christoph Hellwig, that exports device_reprobe.
I will post those patch's on behalf of Christoph.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
914c2d8e597798d62c2e0a3cba737bf6f611eecf 14-Mar-2006 Moore, Eric <Eric.Moore@lsil.com> [SCSI] fusion - removing target_id/bus_id from the VirtDevice structure

It makes no sense in keeping the target_id and bus_id
in the VirtDevice structure, when it can be obtained
from the VirtTarget structure.

In addition, this patch fix's couple compilation bugs
in mptfc.c when MPT_DEBUG_FC is enabled. This
provided by Micheal Reed.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
3a892bef3f7e94c4d6c2c20b9a1b546f43679fd3 14-Mar-2006 Moore, Eric <Eric.Moore@lsil.com> [SCSI] fusion - move some debug firmware event debug msgs to verbose level

Created a debug level MPT_DEBUG_VERBOSE_EVENTS.
Moving some of the more vebose debug messages
for firwmare events into new debug level. Also
added some more firmware events descriptions.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
ce313db240862d809c736c5b1dfc759817fc7ca9 12-Mar-2006 James Bottomley <jejb@mulgrave.il.steeleye.com> [SCSI] mptscsih: remove unused page 1 setting function

It was actually rendered unused by the move to the spi transport
class, but never taken out.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
c92f222e1f14588171e63b550ca8c85fa9130061 01-Mar-2006 James Bottomley <James.Bottomley@steeleye.com> [SCSI] mptspi: Add transport class Domain Validation

This is the first half of a patch to add the generic domain validation
to mptspi. It also creates a secondary "virtual" channel for raid
component devices since these are now exported with no_uld_attach.

What Eric and I would have really liked is to export all physical
components on channel 0 and all raid components on channel 1.
Unfortunately, this would result in device renumbering on platforms with
mixed RAID/Physical devices which was considered unacceptable for
userland stability reasons.

Still to be done is to plug back the extra parameter setting and DV
pieces on reset and hotplug.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
5b5ef4f617f1706a23b0433d89a9c02ceb0980a5 03-Feb-2006 Moore, Eric <Eric.Moore@lsil.com> [SCSI] fusion - mptctl - Event Log Fix

Use the hard coded value MPTCTL_EVENT_LOG_SIZE to fix
bug where in certain cases, the ioc->eventLogSize was
initialized.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2254c86db124a37057116ad20a8de7b8483b6f44 18-Jan-2006 Moore, Eric <Eric.Moore@lsil.com> [SCSI] fusion: add message sanity check

This adds a sanity check in the interrupt routine
insures incoming message frames are a valid
message frames.

The code for setting 0xdeadbeaf in the freed message
frames, apparently was already submitted by Christoph
in previous patch submission.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
a69ac3248513ff0fbbdd8f316136036b3b8067a9 18-Jan-2006 Moore, Eric <Eric.Moore@lsil.com> [SCSI] fusion: unloading the driver - only set asyn narrow for configured devices

This patch inhibits sending spi negotiation parameters
for non-configured devices from the slave_destroy function.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
9f63bb73eb52df43f46ce2284759709fc40f4f52 17-Jan-2006 Moore, Eric <Eric.Moore@lsil.com> [SCSI] fusion: add task managment response code info

Adding verbose message returned from firmware
when a task mangment request fails.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
7e55147fe3203b72e80186c45df9bf0fd6cd97c9 17-Jan-2006 Moore, Eric <Eric.Moore@lsil.com> [SCSI] fusion: overrun tape fix

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
d66c7a0f46ce53f1252e03fe372e39dc2dfff1ea 17-Jan-2006 Christoph Hellwig <hch@infradead.org> [SCSI] fusion: setting timeouts in eh threads appropiatley for fc/sas/spi

On Mon, Jan 16, 2006 at 06:53:13PM -0700, Moore, Eric wrote:
> The task managment request timeout in the eh threads was set
> for U320 timing, which is between 2-5 seconds.
> This is too small for FC and SAS.
> According to the firmware engineers, Fibre needs to be 40 seconds
> and SAS needs to be 10 seconds.

The timeout selection should probably be done in a little helper instead
of duplicated in a few places. Updated patch below.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
663e1aa12f9fc338fccee09f98d9f5bf68517f72 29-Jan-2006 James Bottomley <jejb@titanic.(none)> [SCSI] fusion: fix compile

The prior fusion patches moved an invocation of a function,
mptscsih_TMHandler(), static to mptscsih.c into mptsas.c

Make the function unstatic, move the header to mptscsih.h and export it.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
79de278e86121cd4473c276409f834aee87f3195 26-Jan-2006 Moore, Eric <Eric.Moore@lsil.com> [SCSI] fusion: move sas persistent event handling over to the mptsas module

This moves code intented for SAS from
the generic mptscsih module over to the
mptsas module.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
05e8ec17f4d11ba13795e878fc389cb04d1fdadd 13-Jan-2006 Michael Reed <mdr@sgi.com> [SCSI] mptfusion - fc transport attributes

Signed-off-by: Michael Reed <mdr@sgi.com>
Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
1ca00bb7916cb40b8140173c23481e11d92d6f6a 13-Jan-2006 Christoph Hellwig <hch@lst.de> [SCSI] fusion: kzalloc / kcalloc conversion

Convert kmalloc + memset to kzalloc or kcalloc in fusion.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
c7c82987b4844f555d309ccbd42abe95d46822ff 17-Nov-2005 Moore, Eric Dean <Eric.Moore@lsil.com> [SCSI] mptfusion - mapping fixs required support for transport layers.

This utilizes the hostdata area that is hung off of scsi_target and
scsi_device for saving unique firmware mapping. This will be required
for supporting new Fibre and SPI transport support.

This also fixs problems in error handling error code for SAS
controllers, in which the incorrect mapping was passed to the
firmware.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
f2ea8671a8376e09cf759aa8cb3de8b8d3bced9e 17-Nov-2005 Moore, Eric Dean <Eric.Moore@lsil.com> [SCSI] mptfusion - prep for removing domain validation

This moves some functions around from within the #define
MPTSCSIH_ENABLE_DOMAIN_VALIDATION area, in preperation for generic
domain validation.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
a9b2937a1eab2939d0eed3830ead88664ed7445d 17-Nov-2005 Moore, Eric Dean <Eric.Moore@lsil.com> [SCSI] mptfusion - bus_type, change SCSI to SPI

This changes to SPI for the bus_type enumeration.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2a238ea5fbf2bd9a18a4ffb607418a4b9394647e 01-Dec-2005 Moore, Eric Dean <Eric.Moore@lsil.com> [SCSI] mptfusion : dv performance fix

Syncronization for Domain Validation workqueue and the initiation of the
alternate controller. Its possible that dv could be terminated if the
workqueue on the 1st channel doesn complete in time before the 2nd channel
begins initialization.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
6521018d4bf9522b4de47254ea15e8c1be1ec00f 07-Nov-2005 Nishanth Aravamudan <nacc@us.ibm.com> [PATCH] message: fix-up schedule_timeout() usage

Use schedule_timeout_interruptible() instead of
set_current_state()/schedule_timeout() to reduce kernel size.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Cc: "Moore, Eric Dean" <Eric.Moore@lsil.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
e0fc15bef0e8c6b5abad6e10cfe3d42e278ae8e8 15-Sep-2005 Moore, Eric Dean <Eric.Moore@lsil.com> [SCSI] fusion SAS support (mptsas driver) minor fix

On Thursday, September 15, 2005 6:22 AM, Christoph Hellwig wrote:
> Looks good to me, except for the spurious scsi_print_command prototype
> in mptscsih.h.

The attached patch addresses that concern.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
466544d8898fc87ed6e2e62ac14af7c50ab7a1a4 15-Sep-2005 Moore, Eric Dean <Eric.Moore@lsil.com> [SCSI] fusion SAS support (mptsas driver) updates

Summary of Changes:
* splitting mpt_interrupt per Christophs suggestion
about a month ago
* rename ScsiCfgData to SpiCfgData structure,
then move all the raid related info into
new structure called RaidCfgData. This is
done because SAS supports RAID, as well as SPI,
so the raid stuff should be seperate.
* incorrect timeout calculation for cntdn
inside WaitForDoorbellAck and WaitForDoortbellInt
* add support for interpreting SAS Log Info
* Increase Event Log Size from 0xA to 0x32
* Fix bug in mptsas/mptfc/mptspi - when controller
has Initiator Mode Disabled, and only running in
TargetMode, the mptctl would panic when loading.
The fix is to return 0, instead of -ENODEV, in
SCSI LLD respective probe routines
* Fix bug in mptlan.c - driver will panic if
there is host reset, due to dev being set to
zero in mpt_lan_ioc_reset
* Fix's for SPI - Echo Buffer
* Several fix's in mptscsih_io_done - FCP Response
info, RESIDUAL_MISMATCH, Data Underrun, etc.
* Cleanup Error Handling - EH handlers,
mptscsih_flush_cmds, and zeroing out ScsiLookup
from mptscsih_qcmd
* Cleanup asyn event handling from
mptscsih -> mptscsih_event_process. Also
added support for SAS Persistent Table Full,
an asyn event

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
82ffb67164064752a56669511545316075b41e1d 09-Sep-2005 Christoph Hellwig <hch@lst.de> [SCSI] fusion core changes for SAS support

- various bits for SAS support from the LSI driver.
- use the device private data for the fusion target private data.
this should be using the midlayer target data framework, but we
can't move over to that until fusion has been switched to the
generic DV code
- use target ID and channel from the fusion target private data,
because those in scsi_device will be different for mptsas

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
c6678e0cfb41b029c3600c54b5bb65954de1230a 18-Aug-2005 Christoph Hellwig <hch@lst.de> [SCSI] fusion: whitespace fixes

Acked by: Moore, Eric Dean <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
637fa99b86a00a0b5767a982b83a512ff48ad6d2 18-Aug-2005 Christoph Hellwig <hch@lst.de> [SCSI] fusion: endianess fixes

Assorted endianess fixes. I'll work on full endianess annotations
later.

Acked by: Moore, Eric Dean <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
69218ee5186aded6c78e12e083e073d000ff2e9b 18-Aug-2005 Christoph Hellwig <hch@lst.de> [SCSI] fusion: extended config header support

Acked by: Moore, Eric Dean <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
6e3815ba3a6d392fa9cfbf08208f64c06d9558c4 24-Jun-2005 Moore, Eric Dean <Eric.Moore@lsil.com> [SCSI] - mptfusion - convert to new change_queue_depth API

Convert driver to use new change_queue_depth API.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>

Fixed up rejections and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
d18c3db58bc544fce6662ca7edba616ca9788a70 24-Jun-2005 Greg Kroah-Hartman <gregkh@suse.de> [PATCH] PCI: make drivers use the pci shutdown callback instead of the driver core callback.

Now we can change the pci core to always set this pointer, as pci drivers
should use it, not the driver core callback.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
e404e274f62665f3333d6a539d0d3701f678a598 17-May-2005 Yani Ioannou <yani.ioannou@gmail.com> [PATCH] Driver Core: drivers/i2c/chips/w83781d.c - drivers/s390/block/dcssblk.c: update device attribute callbacks

Signed-off-by: Yani Ioannou <yani.ioannou@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
df0ae2497ddefd72a87f3a3b34ff32455d7d4ae0 28-May-2005 Jeff Garzik <jgarzik@pobox.com> [SCSI] allow sleeping in ->eh_host_reset_handler()

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
68b3aa7c9805aee9005a8ca53c5e99177961fbb9 28-May-2005 Jeff Garzik <jgarzik@pobox.com> [SCSI] allow sleeping in ->eh_bus_reset_handler()

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
94d0e7b805961c44e4dc486ffc21075084bb7175 28-May-2005 Jeff Garzik <jgarzik@pobox.com> [SCSI] allow sleeping in ->eh_device_reset_handler()

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
8fa728a26886f56a9ee10a44fea0ddda301d21c3 28-May-2005 Jeff Garzik <jgarzik@pobox.com> [SCSI] allow sleeping in ->eh_abort_handler()

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
d485eb830576eef911727b1347402e9a708998a2 12-May-2005 Moore, Eric Dean <Eric.Moore@lsil.com> [SCSI] fusion-kfree-cleanup

This patch is originally From: Jesper Juhl <juhl-lkml@dif.dk>

This patch gets rid of redundant NULL checks prior to calling kfree() in
drivers/message/* There are also a few small whitespace changes in there.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
0d0c79747e362ff54adc6418d2990d49cad9395d 23-Apr-2005 Moore, Eric Dean <Eric.Moore@lsil.com> [SCSI] mptfusion: mptscsih Split driver support

(1) mptscsih.c: Remove credits, -sralston references , update copyright
(2) mptscsih.c: split driver support
(3) mptscsih.c: module_init, module_exit, and probe routines moved to new
stub drivers, mptfc and mptspi
(4) mptscsih.c: some global parameters are moved to MPT_SCSI_HOST
(5) mptscsih.c: removed scsi_device_online check.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
8d189f729829369edb2e797e9a6ebc2b01b359d0 17-Apr-2005 Pavel Machek <pavel@ucw.cz> [PATCH] fix u32 vs. pm_message_t in drivers/message

This fixes u32 vs. pm_message_t in drivers/message.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 17-Apr-2005 Linus Torvalds <torvalds@ppc970.osdl.org> Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!