Commit graph

376383 commits

Author SHA1 Message Date
Sumit.Saxena@lsi.com
7525be545c [SCSI] megaraid_sas: Changelog and driver version update
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:52:10 -07:00
Sumit.Saxena@lsi.com
404a8a1a89 [SCSI] megaraid_sas: Add support to differentiate between iMR vs MR Firmware
Add support to differentiate between iMR(no external memory) and MR(with
external memory) controllers.

Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:51:05 -07:00
Sumit.Saxena@lsi.com
bc93d425fc [SCSI] megaraid_sas: Add support for Uneven Span PRL11
MegaRAID older Firmware does not support uneven span configuration for PRL11.
E.g User wants to create 34 Driver PRL11 config, it was not possible using old
firmware, since it was not supported configuration in old firmware

Old Firmware expect even number of Drives in each span and same number of
physical drives at each span.  Considering above design, 17 Drives at Span-0
and 17 drives at span-1 was not possible.

Now, using this new feature Firmware and Driver both required changes.  New
Firmware can allow user to create 16 Drives at span-0 and 18 Drives at
span-1. This will allow user to create 34 Drives Uneven span PRL11.

RAID map is interface between Driver and FW to fetch all required
fields(attributes) for each Virtual Drives.  Since legacy RAID map consider
Even Span design, there was no place to keep Uneven span information in
existing Raid map.  Because of this limitation, for Uneven span VD, driver can
not use RAID map.

This patch address the changes required in Driver to support Uneven span PRL11
support.

1. Driver will find if Firmware has UnevenSpanSupport or not by reading
   Controller Info.
2. If Firmware has UnvenSpan PRL11 support, then Driver will inform about its
   capability of handling UnevenSpan PRL11 to the firmware.
3. Driver will update its copy of span info on each time Raid map update is
   called.
4. Follow different IO path if it is Uneven Span. (For Uneven Span, Driver
   uses Span Set info to find relavent fields for that particular Virtual
   Disk)

More verbose prints will be available by setting "SPAN_DEBUG" to 1 at
compilation time.

Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:48:12 -07:00
Sumit.Saxena@lsi.com
d46a3ad679 [SCSI] megaraid_sas: Add support for Extended MSI-x vectors for 12Gb/s controller
This Driver will use more than 8 MSI-x support provided by Invader/Fury max
upto 128 MSI-x.

[jejb: fix checkpatch warning]
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:46:31 -07:00
Sumit.Saxena@lsi.com
5d0d908d44 [SCSI] megaraid_sas: Set IoFlags to enable Fast Path for JBODs for 12 Gb/s controllers
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:43:58 -07:00
Sumit.Saxena@lsi.com
39b72c3c74 [SCSI] megaraid_sas: Add support to display Customer branding details in syslog
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:42:26 -07:00
Sumit.Saxena@lsi.com
21d3c7105b [SCSI] megaraid_sas: Add support for MegaRAID Fury (device ID-0x005f) 12Gb/s controllers
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:40:53 -07:00
Sumit.Saxena@lsi.com
32d8745c88 [SCSI] megaraid_sas: Set IO request timeout value provided by OS timeout for Tape devices
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:34:38 -07:00
Sumit.Saxena@lsi.com
105900d56e [SCSI] megaraid_sas: Free event detail memory without device ID check
Free event detail memory from more common place, instead of doing it for
limited device types.

Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:24:22 -07:00
Sumit.Saxena@lsi.com
70b47b881e [SCSI] megaraid_sas: Update balance count in driver to be in sync of firmware
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:22:18 -07:00
Sumit.Saxena@lsi.com
b5bccadd80 [SCSI] megaraid_sas: Fix the interrupt mask for Gen2 controller
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:19:44 -07:00
Sumit.Saxena@lsi.com
b09e66da3f [SCSI] megaraid_sas: Return DID_ERROR for SCSI IO, when controller is in critical h/w error
Do not return SCSI_MLQUEUE_HOST_BUSY, but send DID_ERROR to SCSI mid-layer, if
adapter is in critical error state.  "SCSI_MLQUEUE_HOST_BUSY" will keep same
SCSI command in loop and it is not a right return value, if controller is
hardware critical error.

Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 16:55:17 -07:00
Martin K. Petersen
28ce280fe4 [SCSI] 3w-xxxx: Create sense buffer for unsupported commands
Make the driver return appropriate sense data when an unsupported
operation is queued. This will cause the SCSI layer to stop issuing the
offending command.

Reported-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 16:32:22 -07:00
Martin K. Petersen
56f2a8016e [SCSI] Workaround for disks that report bad optimal transfer length
Not all disks fill out the VPD pages correctly. Add a blacklist flag
that allows us ignore the SBC-3 VPD pages for a given device. The
BLIST_SKIP_VPD_PAGES flag triggers our existing skip_vpd_pages
scsi_device parameter to bypass VPD scanning.

Also blacklist the offending Seagate drive model.

Reported-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 13:00:10 -07:00
Reddy, Sreekanth
c3a634bf78 [SCSI] mpt2sas: fix for unused variable 'event_data' warning
If CONFIG_SCSI_MPT2SAS_LOGGING is undefined, then these warnings are emitted

drivers/scsi/mpt2sas/mpt2sas_scsih.c: In function '_scsih_sas_broadcast_primitive_event'
drivers/scsi/mpt2sas/mpt2sas_scsih.c:5810:40: warning: unused variable 'event_data'

Use pr_info() function instead of dewtprintk().

Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 12:55:34 -07:00
Sreekanth Reddy
627d1a1957 [SCSI] mpt2sas: Bump driver vesion to v15.100.00.00
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 12:54:23 -07:00
Sreekanth Reddy
148124d931 [SCSI] mpt2sas: Calulate the Reply post queue depth calculation as per the MPI spec
[jejb: checkpatch fixes]
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 12:52:47 -07:00
Sreekanth Reddy
48ba2efc38 [SCSI] mpt2sas: fix firmware failure with wrong task attribute
When SCSI command is received with task attribute not set, set it to SIMPLE.
Previously it is set to untagged. This causes the firmware to fail the commands.

Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 12:49:56 -07:00
Sreekanth Reddy
6241f22ca1 [SCSI] mpt2sas: Fix for device scan following host reset could get stuck in a infinite loop
Modified device scan routine so each configuration page read breaks from the
while loop when the ioc_status is not equal to MPI2_IOCSTATUS_SUCCESS.

[jejb: checkpatch fixes]
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 12:47:27 -07:00
Sreekanth Reddy
ca6832e91b [SCSI] mpt2sas: Update the timing requirements for issuing a Hard Reset
Updated the mpt2sas driver code that issues hard reset to comply with the
timing requirements mentioned in MPI specifications rev V.

[jejb: checpatch fixes]
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 12:43:15 -07:00
Sreekanth Reddy
10ec24e4ce [SCSI] mpt2sas: MPI2 Rev W (2.00.15) specification
Change set in MPI 2.0 Rev W(2.00.15) specification and 2.00.27 header files

1. Added a bit to the IOCExceptions field of the IOCFacts Reply to indicate
   that the IOC detected a partial memory failure.
2. Added ElapsedSeconds field to RAID Volume Indicator Structure. Added
   Elapsed Seconds Valid flag to Flags field of this structure.
3. Added ElapsedSeconds field to Integrated RAID Operations Status Event Data.
4. In the IOCSettings field of BIOS Page 1, modified the Adapter Support bits
   description to specify X86 BIOS.
5. Toolbox Diagnostic CLI Tool Request may now use chain elements in the SGL.

Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 12:40:02 -07:00
Reddy, Sreekanth
b0df96a006 [SCSI] mpt2sas: Fix for issue Missing delay not getting set during system bootup
Missing delay is not getting set properly. The reason is that it is not
defined in the same file from where it is being invoked.  The fix is to move
the missing delay module parameter from mpt2sas_base.c to mpt2sas_scsh.c.

Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 12:35:34 -07:00
Naresh Kumar Inna
49c1241384 [SCSI] csiostor: Retain default adapter configuration in absence of config file.
- Retain firmware defined configuration settings in the absence of
user-provided configuration by eliminating the global RSS and the
PF/VF capabilities mailbox commands.
- Remove S_IRUGO from sysfs parameters that don't have 'show'
functionality.

Signed-off-by: Naresh Kumar Inna <naresh@chelsio.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-04 11:16:28 -07:00
Vijay Mohan Guvva
07cdc0464f [SCSI] bfa: fix for FC Direct Attach LUN discovery failure
Resending the patch as it didn't make the linux-scsi list.

This patch fixes fcs rport state machine to address ocassional Brocade
FC Direct Attach LUN discovery failure due to not sending PLOGI accept
to the target.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-04 11:16:27 -07:00
Vijay Mohan Guvva
111ecbe426 [SCSI] bfa: fix faulty handling of events in lps sm
When a switch disable/enable or a reboot is done, the HBA port gets an
offline and a subsequent online notification. When the port comes up a
link up notification is sent to bfa from the firmware. The bfa then send
an FLOGI to the firmware which is sent out on the wire.
The switch port meanwhile goes offline (presumably for diagnostics)
which causes the switch not to respond to the FLOGI.
The link down notification is sent to the HBA driver. However owing to a
bug in the lps state machine handling the lps state machine does not
move to sm_init state (it remains in sm_login state and send a login
complete message to fcs). This results in a zero PID assignment as the
login is not really complete.

This fix is to correctly handle the events in lps state machine.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-04 11:16:25 -07:00
Martin K. Petersen
0816c9251a [SCSI] Allow error handling timeout to be specified
Introduce eh_timeout which can be used for error handling purposes. This
was previously hardcoded to 10 seconds in the SCSI error handling
code. However, for some fast-fail scenarios it is necessary to be able
to tune this as it can take several iterations (bus device, target, bus,
controller) before we give up.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-04 11:16:24 -07:00
Hannes Reinecke
0761df9c4b [SCSI] sd: avoid deadlocks when running under multipath
When multipathed systems run into an all-paths-down scenario
all devices might be dropped, too. This causes 'del_gendisk'
to be called, which will unregister the kobj_map->probe()
function for all disk device numbers.
When the device comes back the default ->probe() function
is run which will call __request_module(), which will
deadlock.
As 'del_gendisk' typically does _not_ trigger a module unload
the default ->probe() function is pointless anyway.
This patch implements a dummy ->probe() function, which will
just return NULL if the disk is not registered.
This will avoid the deadlock. Plus it'll speed up device
scanning.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-04 11:16:23 -07:00
wenxiong@linux.vnet.ibm.com
70288b4c8f [SCSI] ipr: Avoid target_destroy accessing memory after it was freed
Defined target_ids,array_ids and vsets_ids as unsigned long to avoid
target_destroy accessing memory after it was freed.

Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-04 11:16:22 -07:00
Sujit Reddy Thumma
1642e66201 [SCSI] Documentation/devicetree: Add DT bindings for UFS host controller
Compatible list is used in commit 03b1781 but is not documented.
Add necessary device tree bindings to describe on-chip UFS host
controllers.

Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
Signed-off-by: Santosh Y <santoshsy@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-04 11:16:21 -07:00
Geert Uytterhoeven
a4bfbcba69 [SCSI] ufs: SCSI_UFSHCD should depend on SCSI_DMA
If NO_DMA=y:

drivers/built-in.o: In function `ufshcd_transfer_req_compl':
drivers/scsi/ufs/ufshcd.c:1182: undefined reference to `scsi_dma_unmap'
drivers/built-in.o: In function `ufshcd_map_sg':
drivers/scsi/ufs/ufshcd.c:377: undefined reference to `scsi_dma_map'
drivers/built-in.o: In function `ufshcd_do_reset':
drivers/scsi/ufs/ufshcd.c:912: undefined reference to `scsi_dma_unmap'
drivers/built-in.o: In function `ufshcd_memory_alloc':
drivers/scsi/ufs/ufshcd.c:565: undefined reference to `dma_alloc_coherent'
drivers/built-in.o: In function `ufshcd_free_hba_memory':
drivers/scsi/ufs/ufshcd.c:185: undefined reference to `dma_free_coherent'
drivers/scsi/ufs/ufshcd.c:192: undefined reference to `dma_free_coherent'
drivers/scsi/ufs/ufshcd.c:199: undefined reference to `dma_free_coherent'
drivers/scsi/ufs/ufshcd.c:185: undefined reference to `dma_free_coherent'
drivers/scsi/ufs/ufshcd.c:192: undefined reference to `dma_free_coherent'
drivers/built-in.o:drivers/scsi/ufs/ufshcd.c:199: more undefined references to `dma_free_coherent' follow
drivers/built-in.o: In function `ufshcd_abort':
drivers/scsi/ufs/ufshcd.c:1498: undefined reference to `scsi_dma_unmap'
drivers/built-in.o: In function `ufshcd_device_reset':
drivers/scsi/ufs/ufshcd.c:1436: undefined reference to `scsi_dma_unmap'

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Santosh Y <santoshsy@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-04 11:16:20 -07:00
Sachin Kamat
123f877586 [SCSI] ufs: Remove redundant platform_set_drvdata()
Commit 0998d06310 (device-core: Ensure drvdata = NULL when no
driver is bound) removes the need to set driver data field to
NULL.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Santosh Y <santoshsy@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-04 11:16:19 -07:00
Dan Carpenter
808cbb68de [SCSI] pm80xx: remove unneeded NULL check
Coccinelle complains about the inconsistent NULL checking on "t".  It
turns out the check isn't needed because we verified that "t" is
non-NULL at the start of the function.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-04 11:16:18 -07:00
James Bottomley
e73823f7a2 [SCSI] libsas: implement > 16 byte CDB support
Remove the arbitrary expectation in libsas that all SCSI commands are 16 bytes
or less.  Instead do all copies via cmd->cmd_len (and use a pointer to this in
the libsas task instead of a copy).  Note that this still doesn't enable > 16
byte CDB support in the underlying drivers because their internal format has
to be fixed and the wire format of > 16 byte CDBs according to the SAS spec is
different.  the libsas drivers (isci, aic94xx, mvsas and pm8xxx are all
updated for this change.

Cc: Lukasz Dorau <lukasz.dorau@intel.com>
Cc: Maciej Patelczyk <maciej.patelczyk@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Jack Wang <xjtuwjp@gmail.com>
Cc: Lindar Liu <lindar_liu@usish.com>
Cc: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-04 11:15:59 -07:00
Steffen Maier
9edf7d75ee [SCSI] zfcp: status read buffers on first adapter open with link down
Commit 64deb6efdc
"[SCSI] zfcp: Use status_read_buf_num provided by FCP channel"
started using a value returned by the channel but only evaluated the value
if the fabric link is up.
Commit 8d88cf3f3b
"[SCSI] zfcp: Update status read mempool"
introduced mempool resizings based on the above value.
On setting an FCP device online for the very first time since boot, a new
zeroed adapter object is allocated. If the link is down, the number of
status read requests remains zero. Since just the config data exchange is
incomplete, we proceed with adapter open recovery. However, we
unconditionally call mempool_resize with adapter->stat_read_buf_num == 0 in
this case.

This causes a kernel message "kernel BUG at mm/mempool.c:131!" in process
"zfcperp<FCP-device-bus-ID>" with last function mempool_resize in Krnl PSW
and zfcp_erp_thread in the Call Trace.

Don't evaluate channel values which are invalid on link down. The number of
status read requests is always valid, evaluated, and set to a positive
minimum greater than zero. The adapter open recovery can proceed and the
channel has status read buffers to inform us on a future link up event.
While we are not aware of any other code path that could result in mempool
resize attempts of size zero, we still also initialize the number of status
read buffers to be posted to a static minimum number on adapter object
allocation.

Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org> #2.6.35+
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-31 16:32:38 -07:00
Martin Peschke
663e0890e3 [SCSI] zfcp: remove access control tables interface
This patch removes an interface that was used to manage access control
tables within the HBA. The patch consequently removes the handling
for conditions related to those access control tables, too.

That initiator-based access control feature was only needed until the
introduction of NPIV and was withdrawn with z10 years ago.
It's time to cleanup the corresponding device driver code.

Signed-off-by: Martin Peschke <mpeschke@linux.vnet.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-31 16:32:38 -07:00
Steffen Maier
bf3ea3aec5 [SCSI] zfcp: module parameter dbflevel for early debugging
So far, we could only increase the s390dbf log level after an FCP
device has been initially set online for it to create the dbf entries
required to adjust the level.

Introduce zfcp.dbflevel as counterpart to the already existing
zfcp.dbfsize to enable debugging of e.g. setting an FCP device online.

Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-31 16:32:38 -07:00
Steffen Maier
5fea4291de [SCSI] zfcp: block queue limits with data router
Commit 86a9668a8d
"[SCSI] zfcp: support for hardware data router"
reduced the initial block queue limits in the scsi_host_template to the
absolute minimum and adjusted them later on. However, the adjustment was
too late for the BSG devices of Scsi_Host and fc_host.

Therefore, ioctl(..., SG_IO, ...) with request or response size > 4kB to a
BSG device of an fc_host or a Scsi_Host fails with EINVAL. As a result,
users of such ioctl such as HBA_SendCTPassThru() in libzfcphbaapi return
with error HBA_STATUS_ERROR.

Initialize the block queue limits in zfcp_scsi_host_template to the
greatest common denominator (GCD).

While we cannot exploit the slightly enlarged maximum request size with
data router, this should be neglectible. Doing so also avoids running into
trouble after live guest relocation (LGR) / migration from a data router
FCP device to an FCP device that does not support data router. In that
case, zfcp would figure out the new limits on adapter recovery, but the
fc_host and Scsi_Host (plus in fact all sdevs) still exist with the old and
now too large queue limits.

It should also OK, not to use half the size as in the DIX case, because
fc_host and Scsi_Host do not transport FCP requests including SCSI commands
using protection data.

Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Reviewed-by: Martin Peschke <mpeschke@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org> #3.2+
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-31 16:32:37 -07:00
Daniel Hansel
f76ccaac4f [SCSI] zfcp: fix adapter (re)open recovery while link to SAN is down
FCP device remains in status ERP_FAILED when device is switched online
or adapter recovery is triggered  while link to SAN is down.

When Exchange Configuration Data command returns the FSF status
FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE it aborts the exchange process.
The only retries are done during the common error recovery procedure
(i.e. max. 3 retries with 8sec sleep between) and remains in status
ERP_FAILED with QDIO down.

This commit reverts the commit 0df138476c
(zfcp: Fix adapter activation on link down).
When FSF status FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE is received the
adapter recovery will be finished without any retries. QDIO will be
up now and status changes such as LINK UP will be received now.

Signed-off-by: Daniel Hansel <daniel.hansel@linux.vnet.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org> #2.6.37+
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-31 16:32:37 -07:00
Sebastian Ott
bd3238667b [SCSI] zfcp: remove unused device_unregister wrapper
Remove the now unused function zfcp_device_unregister since all
users have been converted to use device_unregister directly.

Reviewed-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-31 16:32:37 -07:00
Sebastian Ott
86bdf218a7 [SCSI] zfcp: cleanup unit sysfs attribute usage
Let the driver core handle device attribute creation and removal. This
will simplify the code and eliminates races between attribute
availability and userspace notification via uevents.

Reviewed-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-31 16:32:37 -07:00
Sebastian Ott
83d4e1c33d [SCSI] zfcp: cleanup port sysfs attribute usage
Let the driver core handle device attribute creation and removal. This
will simplify the code and eliminates races between attribute
availability and userspace notification via uevents.

Reviewed-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-31 16:32:36 -07:00
Sebastian Ott
8377dbc3cd [SCSI] zfcp: cfdc fops add owner
Set the owner member of zfcp_cfdc_fops, to ensure that the
caller of these functions holds a module reference.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-31 16:32:36 -07:00
Linus Torvalds
e4aa937ec7 Linux 3.10-rc3 2013-05-26 16:00:47 -07:00
Manfred Spraul
ab465df9dd ipc/sem.c: Fix missing wakeups in do_smart_update_queue()
do_smart_update_queue() is called when an operation (semop,
semctl(SETVAL), semctl(SETALL), ...) modified the array.  It must check
which of the sleeping tasks can proceed.

do_smart_update_queue() missed a few wakeups:
 - if a sleeping complex op was completed, then all per-semaphore queues
   must be scanned - not only those that were modified by *sops
 - if a sleeping simple op proceeded, then the global queue must be
   scanned again

And:
 - the test for "|sops == NULL) before scanning the global queue is not
   required: If the global queue is empty, then it doesn't need to be
   scanned - regardless of the reason for calling do_smart_update_queue()

The patch is not optimized, i.e.  even completing a wait-for-zero
operation causes a rescan.  This is done to keep the patch as simple as
possible.

Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Acked-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-05-26 15:14:51 -07:00
Linus Torvalds
89ff77837a NFS client bugfixes for 3.10
- Stable fix to prevent an rpc_task wakeup race
 - Fix a NFSv4.1 session drain deadlock
 - Fix a NFSv4/v4.1 mount regression when not running rpc.gssd
 - Ensure auth_gss pipe detection works in namespaces
 - Fix SETCLIENTID fallback if rpcsec_gss is not available
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.13 (GNU/Linux)
 
 iQIcBAABAgAGBQJRomGNAAoJEGcL54qWCgDyzUIQALj4hsOtdcmCCAWu0m+Pr+Gz
 /6rpO2xJ5cLWyTYS2J9wmPkU+mb/g/OB/OhANyQQsDbfoW3e27TGaXRB8hUs29vk
 LHTkFcrBTi4ohlw2Gyb6LWDF6cyHkC7cpH7tfIjLDff77V/qK1uqo41MtYpqUvy3
 41tMoFOhvpwsy7HuKqVyYtNlwxnXrdJ5XvK0ycaQYQ9t8om9Hxu/scCgLfl/qwRr
 eVhIesC2/Y1eC46UK7/TWCC7aTLkvi85UQY+fywMkajt/gPzjjh6nuhc45aOT9d7
 pc0sXgIs8fLEjC+CRa0ojrziJZCHZY93U1kzA+CotRqPq76nPeFeG/1VhViKKb4C
 1AU9IA4ntViUqNDQiGrCxE6ZeMewTOKksrCErwSS16Hv9Gqh4SHq84R/bF6MFgBc
 dqQsexUbf/vaWHmuosARgbyc/QcBXDwWwbkq0hXSWbHA8vpc8/Lw1wkp49eyKz0V
 0zwJ9xInakXr5/DIC72IKEF0Dg26L+GTXWLmDZVcdpVBp5A403trxUKckcsNa/Xf
 FXaGMhyv2ZfV4AohW1Z8klkLiMHt4dr+YB7SQAgR/gb81p3odgKgMz51PfmHxFqs
 4nxwRQqWplBTGiLrOFSgaRC50jLqEloUweWC2qf56KYEb9N6M6XDIXhllLIMyWLD
 94cvihpKj+/ecKH5kQWF
 =B8go
 -----END PGP SIGNATURE-----

Merge tag 'nfs-for-3.10-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:

 - Stable fix to prevent an rpc_task wakeup race
 - Fix a NFSv4.1 session drain deadlock
 - Fix a NFSv4/v4.1 mount regression when not running rpc.gssd
 - Ensure auth_gss pipe detection works in namespaces
 - Fix SETCLIENTID fallback if rpcsec_gss is not available

* tag 'nfs-for-3.10-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFS: Fix SETCLIENTID fallback if GSS is not available
  SUNRPC: Prevent an rpc_task wakeup race
  NFSv4.1 Fix a pNFS session draining deadlock
  SUNRPC: Convert auth_gss pipe detection to work in namespaces
  SUNRPC: Faster detection if gssd is actually running
  SUNRPC: Fix a bug in gss_create_upcall
2013-05-26 12:33:05 -07:00
Linus Torvalds
932ff06b2a A sysfs file permissions correction.
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABAgAGBQJRogxiAAoJEBLB8Bhh3lVKRl4QAJXWdJBRFoVK7xjtUuiAVagd
 kHRBbZ+hJ4Td68PntXJKJjALdrG3tT7xUKDeySbMo8PC19uqSkISH1q95oAEJ5zP
 /h49/gNH51o1IG3v220zM8h6f+KPb3NWAWVguRIXLc8C7P6fq+cCc3putbEaSN7d
 IMQfPZyRUWcLpwagP+I1b9WmlXNC09izu/g60VnIkiAjl1EAv0RQoi4HPpBitiFN
 ntQvq1yUIOHxX40F7lM/5OyuOyFnN+2amClFbDxcvKHihjwuGHFoxBkH93EM5Re4
 AkNkcoGuWW6tzqOTPJr8yohiXRf1iRMOfrJYtxlc6hlKWbV+dFcE4RmddYJzuYNs
 GaqyGECvEk8UwbvzyiQrVTrTGE9sXSIK3JGusSQqvLAk3NJrd7Fq/oIjTgbd3LMG
 TWd4ODv6h7RLQjCNYOj8ygvLrhj8A5hQrbB4Isnxivb2aDM7Agiuei8CZSQU/ryq
 Af4/65NVqjjbkMFNHE2dGowUKq1NZ+tEcsKkrvGAWsV2MneUdRqj/ucp+uVWKLww
 SKkxtg7pNlEh//s/bhMl/qsY0EmJ7eVacmzZEmo42082UTu9ipL9afEE+cVqLDIO
 /TTTpfAIpDUtRAQwIXgWteJKiPoISYqT0n6uYvy187HC84T78iTahfPz9ioyNyR0
 qvG51La1nRlR4LZultbB
 =75KN
 -----END PGP SIGNATURE-----

Merge tag 'edac_fixes_for_3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull amd64 edac fix from Borislav Petkov:
 "A sysfs file permissions correction"

* tag 'edac_fixes_for_3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  amd64_edac: Fix bogus sysfs file permissions
2013-05-26 09:52:26 -07:00
Linus Torvalds
95f4838e21 Merge branch 'parisc-for-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fixes from Helge Deller:
 "This time we made the kernel- and interruption stack allocation
  reentrant which fixed some strange kernel crashes (specifically
  protection ID traps).

  Furthemore this patchset fixes the interrupt stack in UP and SMP
  configurations by using native locking instructions.  And finally
  usage of floating point calculations on parisc were disabled in the
  MPILIB."

* 'parisc-for-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: fix irq stack on UP and SMP
  parisc/superio: Use module_pci_driver to register driver
  parisc: make interrupt and interruption stack allocation reentrant
  parisc: show number of FPE and unaligned access handler calls in /proc/interrupts
  parisc: add additional parisc git tree to MAINTAINERS file
  parisc: use PAGE_SHIFT instead of hardcoded value 12 in pacache.S
  parisc: add rp5470 entry to machine database
  MPILIB: disable usage of floating point registers on parisc
2013-05-26 09:36:31 -07:00
Linus Torvalds
088d812fe9 xfs: fixes for 3.10-rc3
- Fix for corruption with FSX on 512 byte blocksize filesystems
 - Fix rounding error in xfs_free_file_space
 - Fix use-after-free with extent free intents
 - Add several missing KM_NOFS flags to fix lockdep reports
 - Several fixes for CRC related code
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.10 (GNU/Linux)
 
 iQIcBAABAgAGBQJRn93mAAoJENaLyazVq6ZOPw8P/1ab7Gr4K7ccpuRvC+JiBPx9
 /Eb1l2A68r8rWJq3bEvLM/XgN7F0IESastS+iA8lrNuLWJAHCb+Y37mdbyWymhWO
 J6LFg/Mic+n5uGmg6nXrqLJ8epTd3L+V+cCEHLpa/20zEwa5yd8sSTV0P1pfcMRi
 S36Uof7boe+s4H/s2z4YX8Y+dkaVn1tN7j4PDs5Zd/wiUq0EKA5le4AkbqIJlCDn
 E9mJL1S2t3QwfgQWL+pe8f5jzReGTAxJUQWX2ErajX4vYI7PnR1WTYf7YJB291f0
 XPfkjqvaK0WCdipSkgb58t/Rj2IxoHItdryvBHa/rnL4e95aBQMpNyY8btNX28ou
 NgcIQnqQB+xlJeHpSyb1xNusamGzWw0CEYsXPcDQbXj1uJjd7/GfqTwtVbB4zOlW
 Hua7/6N22vaY1dfQcQFwgi1XcKF9jSVKBVOvy7yHEmdNuT7mFejaG1gVO7NpTIgd
 s7R91pQVlYpLTmZHK6ZqZap5OC6kS/YJr9HxVxS3FQhaJmFwGqvf6UUjSWOK1MnJ
 obTbbygo2Orvh10lgzDNsd+xRJZ9aFn+UfywSeQGTfm91HvTnEQje3xqctv3zmBy
 adrWSXXg/eN07nciNk0zTgHnQZo1v/ZeAFlz0AcSslMMQ7Pq4+Pv4LPtdxMIdrxU
 1IZ32GunGTUXqm6GRW6v
 =hQCM
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-v3.10-rc3' of git://oss.sgi.com/xfs/xfs

Pull xfs fixes from Ben Myers:
 "Here are fixes for corruption on 512 byte filesystems, a rounding
  error, a use-after-free, some flags to fix lockdep reports, and
  several fixes related to CRCs.  We have a somewhat larger post -rc1
  queue than usual due to fixes related to the CRC feature we merged for
  3.10:

   - Fix for corruption with FSX on 512 byte blocksize filesystems
   - Fix rounding error in xfs_free_file_space
   - Fix use-after-free with extent free intents
   - Add several missing KM_NOFS flags to fix lockdep reports
   - Several fixes for CRC related code"

* tag 'for-linus-v3.10-rc3' of git://oss.sgi.com/xfs/xfs:
  xfs: remote attribute lookups require the value length
  xfs: xfs_attr_shortform_allfit() does not handle attr3 format.
  xfs: xfs_da3_node_read_verify() doesn't handle XFS_ATTR3_LEAF_MAGIC
  xfs: fix missing KM_NOFS tags to keep lockdep happy
  xfs: Don't reference the EFI after it is freed
  xfs: fix rounding in xfs_free_file_space
  xfs: fix sub-page blocksize data integrity writes
2013-05-26 09:35:02 -07:00
Linus Torvalds
72de4c63e5 Last minute one-liners: wrong kfree usage fix, module alias fixup and
kconfig adjustments.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.13 (GNU/Linux)
 
 iQIcBAABAgAGBQJRjV16AAoJEGgI9fZJve1bQeIP/j7K21xpCfKjvxgzKQjmVN4Z
 PMi3mUzNXpOCVVN+2Vd+ez9WxQAxiMHPEs+DNAFPoqaFbrBn6KwRox5eOo60j5Cm
 v/IKhUC41/OwErGvr0iop0x9ifOpGon6AHhau8JAv1frRS1DpI7oTDBI3huRT/b2
 AhButIZiOxRzrImfc5v3lA6paX8fgu5KmupYgQAvHmkKSN1R+DR5i6eFKtPtHwRZ
 9cHqZmAwSwySI0HyhjNdPU3yaok3zte6GF/XB58eYDNmP25I0hTVFo3CY30JMfXP
 2e3i2zHOGe0g5fX+Wjk6iVWA9tcobrTtZ/0lzSpe07qUK2zW8fv4S3A4pzVqJ1GT
 02N458NZXPOEJ5Bfr/GO+74gHmHOcga5ea1EJh2Y1yr/ut2VQgB6W57xLvD+CWdn
 bVNAc73vN/5Bu5Swuw7Q5B53HV9CzZs+vs6aocraYuuBD3TvSCfyowOiODayKKdC
 gLmrZ9aoyGjNmRxh15WVpZWm/VwYVcBXv1BlqECsY/Sn42w9u5uLPdrrNleAhMlL
 /OqaGp817dpEeY85jLXDOEPhqafjiOO49mY9qN3iN0o3DKAEKF/cA5sxGMDkAija
 Oa63tzRQEiz4XfHwur5Oa3hGasB7OAdWF4p/dzLEYFkY0HUKW35Y+g03dd2f60au
 v2cMQxcUQ3FLJDfirgQP
 =+dqw
 -----END PGP SIGNATURE-----

Merge tag 'for-v3.10-fixes' of git://git.infradead.org/battery-2.6

Pull bettery fixes from Anton Vorontsov:
 "Last minute one-liners: wrong kfree usage fix, module alias fixup and
  kconfig adjustments"

* tag 'for-v3.10-fixes' of git://git.infradead.org/battery-2.6:
  pm2301_charger: Fix module alias prefix
  wm831x_backup: Fix wrong kfree call for devdata->backup.name
  bq27x00: Fix I2C dependency in KConfig
  lp8788-charger: Fix kconfig dependency
2013-05-25 20:32:49 -07:00
Linus Torvalds
1aad08dc57 Power management and ACPI fixes for 3.10-rc3
- Additional CPU ID for the intel_pstate driver from Dirk Brandewie.
 
 - More cpufreq fixes related to ARM big.LITTLE support and locking from
   Viresh Kumar.
 
 - VIA C7 cpufreq build fix from Rafał Bilski.
 
 - ACPI power management fix making it possible to use device power
   states regardless of the CONFIG_PM setting from Rafael J. Wysocki.
 
 - New ACPI video blacklist item from Bastian Triller.
 
 /
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.19 (GNU/Linux)
 
 iQIcBAABAgAGBQJRoRZjAAoJEKhOf7ml8uNsv9wQAKAMs9J8k6XqgNPisFKetw+K
 hzCOsKFOpI0BQKFikgtWjhGre1SyNIRUvLXO7BHFHXYQW6cLvn1jAyJhvl+i4nvT
 eOa+vdGd6grWncbhIxeidoyk9hTZ6bdMWlTBvKUz5KpHzvp4YGC2jlvwFwqsJkpg
 nQ8Hcbrbhm4vz5h7EmrlYcELBNTi5LQtmnqlxtbn02GX75BFTpkCm5aLZWZNEUrE
 Hix8BhN41+hSy+K34ztHFlP5g/s/lIa9dOX1tewqSigkDB/qYYIt2lpdD2icOIOW
 qHAtvpZq8/fZOcoZ9KdFqKUjjbuKVavldb+YzGeTLQufOAwb4hgMRvAccdNFMHIW
 9tVkp2TcK6K7pAYlXtgEf25ka7ulLWDBd4C662gZfpi+oPKx2BI/6m7J4VoTULeb
 30hDMyZXrXWWvStwO05Pyno3W5lG+cn9jytc3hKkaFerb53NHcZHfb0Rih5NhDZD
 Ep09IuPE8fOT9KndY2kw/WwoZyJurYCbrgE+G1QyA+hsNPkNhPlGTxdL8vCqxM4K
 ZOaQQejpd1bXBSk8Koz8LRyQ38KJByvM64B0EDSP6BQUT+rlbkcvog1bJV+UdpbJ
 4TlhrAFlobhRFQBqlIbRqMXFPH31YSm7wVK1eK/gEqNZI935Kd17YSFf8yyi2yli
 vBlmPkiPEIJHysps+tvd
 =Srt8
 -----END PGP SIGNATURE-----

Merge tag 'pm+acpi-3.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management and ACPI fixes from Rafael Wysocki:

 - Additional CPU ID for the intel_pstate driver from Dirk Brandewie.

 - More cpufreq fixes related to ARM big.LITTLE support and locking from
   Viresh Kumar.

 - VIA C7 cpufreq build fix from Rafał Bilski.

 - ACPI power management fix making it possible to use device power
   states regardless of the CONFIG_PM setting from Rafael J Wysocki.

 - New ACPI video blacklist item from Bastian Triller.

* tag 'pm+acpi-3.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / video: Add "Asus UL30A" to ACPI video detect blacklist
  cpufreq: arm_big_little_dt: Instantiate as platform_driver
  cpufreq: arm_big_little_dt: Register driver only if DT has valid data
  cpufreq / e_powersaver: Fix linker error when ACPI processor is a module
  cpufreq / intel_pstate: Add additional supported CPU ID
  cpufreq: Drop rwsem lock around CPUFREQ_GOV_POLICY_EXIT
  ACPI / PM: Allow device power states to be used for CONFIG_PM unset
2013-05-25 20:32:00 -07:00