Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

use the constant MEGASAS_RESET_WAIT_TIME when waiting for firmware
commands to complete (currently 3 minutes).

Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

The current sense pointer is cast to a u32 pointer, which can truncate
on 64 bits.  Fix by using unsigned long instead.

Signed-off-by Bo Yang<bo.yang@lsi.com>
Cc: stable@kernel.org
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Driver will update the OS devices after adding and deleting the device
from FW.  When driver receive add or delete AEN from FW, driver will
send the DCMD cmd to get the System PD list from FW.  Then driver will
check if this device already in the OS: If add event and OS don't have
the device (but it is in the list), driver add the device to OS,
otherwise driver will not add.  If remove event, driver will check the
list, if is not in the list, but OS have the device, driver will
remove the device.

Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Add a lock to the skinny firmware initialisation sequence to prevent
the two stage write being non atomic if multiple instances use it.

Add a flag to the driver shutdown sequence to prevent aen ioctls being
called after shutdown begins.

Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

To increase the performance, megaraid sas driver added the IEEE SGE
support to support SAS2 controller.

Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

MegaRAID SAS2 controller ioctl can't use 32 cmd for applications.
Driver need to divide different number of cmds to IO and application.

Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

When OS issue inquiry, it will check driver's internal pd_list.

Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Add system PDs to OS.  Driver implemented the get_pd_list function to
get the system PD from FW.

Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Add the new megaraid sas 2 controller to the driver.  megaraid sas2 is
LSI next generation SAS products.  driver add the interface to support
this product.

Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

update the sysfs parameter to tell application driver support AEN poll

Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Add Poll_wait mechanism to SAS-2 MegaRAID SAS Linux driver. Driver
will wakeup poll after the driver get event from MegaRAID SAS FW.

Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Add the Tape drive fix to the megaraid_sas driver: If the command is
for the tape device, set the FW pthru timeout to the os layer timeout
value.

Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Bump version to 03.100.03.00
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

(1) target resets are sending link change rate events with no link rate
change -> thus said the driver was modified so when there is no link rate
change, we don't need to call mpt2sas_transport_update_links nor
_scsih_ublock_io_device.
(2) There were changes made in _scsih_sas_topology_change_event_debug to
change the debug strings so they are more clear.  Also the link rate change
information was added to display the new and previous link rate.
for the MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST event when the ExpStatus is
set to zero, display "responding" instead of "unknown status".
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

(1) Added new function _scsih_ir_shutdown.  This function will issue the
MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED request via
MPI2_FUNCTION_RAID_ACTION. The function will wait 10 seconds for reply
message frame, then print out the ioc status and loginfo.  This function is
only called when there are raid volumes present.

(2) Add shutdown callback in the struct pci_driver object scsih_driver. This
will be called only when the system is shutting down. From this function, we
will call _scsih_ir_shutdown mentioned above.

(3) Add support in _scsih_remove to call _scsih_ir_shutdown. The function
_scsih_remove will be called when the driver is unloaded (and system is
still running).

scsih internal command contex is added to send internal message frames
from mpt2sas_scsih.c.
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

When receiving the MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET event,
the driver will set the tm_busy flag in the sdev private host data, When
tm_busy flag is set, the driver will return SCSI_MLQUEUE_DEVICE_BUSY,
effectly freezing the IO to the device. The tm_busy flag is cleared with the
MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET event.
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

(1) EEDP(End to End data protection) was not working. This was due to not
setting EEDP BlockSize and Flags to little endian format in the message
frame.
(2) Some expander sysfs attributes were not getting set properly.  The sas
format was not getting set due to endian issues with sas_format field in the
struct rep_manu_reply. Since sas_format was not set properly, the
component_vendor_id, component_revision_id, and component_id were not set.
(3) In _transport_smp_handler: we don't need to convert the smid from little
endian to cpu prior to calling mpt2sas_base_free_smid, because its allready
in cpu format. (4) Some loginfos and ioc status were not xonverted from
little endian to cpu.
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

cpu_to_le64 when calculating the physical dma address. This will properly
handle endianess on big endian systems.  The return value of this function
was changed from dma_addr_t to __le64. Remove the typecasting of u32 when
setting the SenseBufferLowAddress, since its already in __le32 format.
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

[SCSI] mpt2sas: Return DID_TRANSPORT_DISRUPTED in nexus loss,SCSI_MLQUEUE_DEVICE_BUSY if device is busy

1 Its observed that the OS was sending request to the driver after it had been
put into blocking state, so the driver was modified to return
SCSI_MLQUEUE_DEVICE_BUSY.
2. Driver will return DID_TRANSPORT_DISRUPTED when sdev is haivng nexus loss.
This occurrs when sdev is blocked, between the
MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING and
MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING events.
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

The driver needs to retrieve the ioc facts prior to putting the controller
into READY state. The current design is calling ioc facts after putting the
controller into READY state, which means the driver is sending a diag reset
instead of message unit reset becuase the capability information is not yet
available.
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

(1) for the MPI2_EVENT_IR_OPERATION_STATUS event, add support to print
"background init" or "make data consistent" for debugging purposes.  If the
RAIDOperation is set to a value not defined, then don't print anything

(2) for the MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE event, add support to print
"expander reduced functionality" and "expander reduced functionality
complete", which are new events.
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Added sanity check in _scsih_change_queue_depth to limit the max_depth to 32
for SATA devices. This is only for physical devices not part of a volume.
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Added support to set the TimeStamp when sending ioc_init.
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Added tests for registry entries of EXBuffSize, EXImmed, and EXType to
support the new Extended diag buffer type.  Modified code where necessary to
handle the new ExtendedType field in the F/W diagnostic Post and Release
messages.
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Added command line option diag_buffer_enable. When the command line option is
set, the driver will automatically post diag buffers at driver load time.
The command line option diag_buffer_enable is bitwise, so it's possible to
enable both and/or snapshot + trace buffers.  For trace, the driver will
allocate 1MB buffer, whereas for snapshot its 2MB. The purpose for this is
so the enduser doesn't have to manually use an application to setup diag
buffers for debugging firmware related issues.

Here is some examples
trace:
# insmod mpt2sas.ko diag_buffer_enable=1

snapshot:
# insmod mpt2sas.ko diag_buffer_enable=2

both trace and snapshot:
# insmod mpt2sas.ko diag_buffer_enable=3
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Fixed some of the comments sections for some of the function so "@ioc:
pointer to scsi command object" was changed to "@ioc: per adapter object"
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Added command line option and shost sysfs attribute called
mpt2sas_fwfault_debug. When enduser writes a "1" to this parameter, this
will enable support in the driver for debugging firmware timeout related
issues.  This handling was added in three areas (a) scsi error handling
callback called task_abort, (b) IOCTL interface, and (c) other timeouts that
result in diag resets, such as manufacturing config pages.  When this
support is enabled, the driver will provide dump_stack to console, halt
controller firmware, and panic driver. The end user probably would want to
setup serial console redirection so the dump stack can be seen.

Here are the three methods for enable this support:

(a) # insmod mpt2sas.ko mpt2sas_fwfault_debug=1
(b) # echo 1 > /sys/module/mpt2sas/parameters/mpt2sas_fwfault_debug
(c) # echo 1 > /sys/class/scsi_host/host#/fwfault_debug  (where # is
the host number)
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

The new headers contain the following changes:
(1) Added IO Unit Page 7.
(2) Added new device ids for SAS2208.
(3) Added SAS IO Unit Page 5.
(4) Added partial and slumber power management capable flags to SAS Device
    Page 0 Flags field.
(5) Added PhyInfo defines for power condition.
(6) Added Ethernet configuration pages.
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Added device ids range for { 0x80 - 87 } , modified mpi/mpi2_cnfg.h containing
MPI2_MFGPAGE_DEVID_SAS2208_X.
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Add support in the driver to check for valid response info in the scsi
state, then check to see if the response code is
MPI2_SCSITASKMGMT_RSP_INVALID_FRAME; when this condition occurrs, the driver
will return DID_SOFT_ERROR.  A return code of DID_SOFT_ERROR will result in
a retry at the scsi-mid layer level.  An additional change added to obtain
the response code from the 1st byte of the response info instead of last.
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

This handles the case where driver receives a expander removal event while
it is in the middle of processing an expander add event. The existing
implementation will stop processing futher device adds when a expander
delete arrives on top of add expander add. Due to a sanity check in the
driver, the devices there were not added, were never handshaked to firmware
with the device removal handshake protocal. Since the driver didnt' do the
handshake, the controller never provide further add events.  To fix this
issue, the sanity check was removed so the driver will always do the device
removal handshake protocal.
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

The device driver was not handling updating device handles in all cases
across diag resets. To fix this issue, the driver is converted to using sas
address instead of handle as a lookup reference to the parent expander or
sas_host. Also, for both expanders and sas host, the phy handle will be one
unique handle. In the sas host case, the phy handle can be different for
every phy, so the change is to set the handle to the handle of the first
phy; every phy will be one single sas address(phy 0) instead of a different
sas address for every phy(previous implementation). So making one consistent
sas address for all the direct attachedports to the sas host, will make it
better user experience when using udev /dev/disk/by-path dev nodes
Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: NEric Moore <Eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6:
  ide: Serialize CMD643 and CMD646 to fix a hardware bug with SSD

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (43 commits)
  net: Fix 'Re: PACKET_TX_RING: packet size is too long'
  netdev: usb: dm9601.c can drive a device not supported yet, add support for it
  qlge: Fix firmware mailbox command timeout.
  qlge: Fix EEH handling.
  AF_RAW: Augment raw_send_hdrinc to expand skb to fit iphdr->ihl (v2)
  bonding: fix a race condition in calls to slave MII ioctls
  virtio-net: fix data corruption with OOM
  sfc: Set ip_summed correctly for page buffers passed to GRO
  cnic: Fix L2CTX_STATUSB_NUM offset in context memory.
  MAINTAINERS: rt2x00 list is moderated
  airo: Reorder tests, check bounds before element
  mac80211: fix for incorrect sequence number on hostapd injected frames
  libertas spi: fix sparse errors
  mac80211: trivial: fix spelling in mesh_hwmp
  cfg80211: sme: deauthenticate on assoc failure
  mac80211: keep auth state when assoc fails
  mac80211: fix ibss joining
  b43: add 'struct b43_wl' missing declaration
  b43: Fix Bugzilla #14181 and the bug from the previous 'fix'
  rt2x00: Fix crypto in TX frame for rt2800usb
  ...

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
  sched: move rq_weight data array out of .percpu
  percpu: allow pcpu_alloc() to be called with IRQs off

* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-param-fixes:
  param: fix setting arrays of bool
  param: fix NULL comparison on oom
  param: fix lots of bugs with writing charp params from sysfs, by leaking mem.

* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  virtio: order used ring after used index read
  virtio-pci: fix per-vq MSI-X request logic

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  backing-dev: ensure that a removed bdi no longer has super_block referencing it
  block: use after free bug in __blkdev_get
  block: silently error unsupported empty barriers too

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  Revert "PCI: get larger bridge ranges when space is available"