James Smart [Wed, 16 Feb 2011 17:39:24 +0000 (12:39 -0500)]
[SCSI] lpfc 8.3.21: Critical Errors and Bug Fixes
Critical Errors:
- Correctly handle non-zero return lpfc_workq_post_event and return ENOMEM
- Save the irq level when locking the host_lock in lpfc_findnode_did
Bug Fixes:
- Adjust payload_length and request_length for sli4_config mailbox commands.
- Add the freed sgl/XRI to the tail of the list rather than to the head.
- Set the FC_VPORT_NEEDS_INIT_VPI on vport deletes and check it before
issuing a fdisc on an els retry.
- Only call lpfc_hba_init_link() if phba->cfg_suppress_link_up
is LPFC_INITIALIZE_LINK.
- Add support for SLI-4 Performance Hints
Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Dan Carpenter [Tue, 15 Feb 2011 21:33:13 +0000 (15:33 -0600)]
[SCSI] hpsa: fix bad comparison
'!' has higher precedence than '&'. CFGTBL_ChangeReq is 0x1 so the
original code is equivelent to if (!doorbell_value) {...
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stephen M. Cameron [Tue, 15 Feb 2011 21:33:08 +0000 (15:33 -0600)]
[SCSI] hpsa: Do not attempt kdump if we detect resetting controller failed.
We can get completions left over from before the attempted reset which
will interfere with the kdump. Better to just not make the attempt in
that case.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stephen M. Cameron [Tue, 15 Feb 2011 21:33:03 +0000 (15:33 -0600)]
[SCSI] hpsa: Inform controller we are using 32-bit tags.
Controller will transfer only 32-bits on completion if it
knows we are only using 32-bit tags. Also, some newer controllers
apparently (and erroneously) require that we only use 32-bit tags,
and that we inform the controller of this.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stephen M. Cameron [Tue, 15 Feb 2011 21:32:58 +0000 (15:32 -0600)]
[SCSI] hpsa: Add transport_mode host attribute in /sys
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stephen M. Cameron [Tue, 15 Feb 2011 21:32:53 +0000 (15:32 -0600)]
[SCSI] hpsa: make hpsa.hpsa_simple_mode=1 module parameter actually work
It's not enough to simple avoid putting the board into performant
mode, as we have to set up the interrupts differently, etc. When
I originally tested this module parameter, I tested it incorrectly
without realizing it, and the driver was running in performant mode
the whole time unbeknownst to me.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stephen M. Cameron [Tue, 15 Feb 2011 21:32:48 +0000 (15:32 -0600)]
[SCSI] hpsa: do not re-order commands in internal queues
Driver's internal queues should be FIFO, not LIFO.
This is a port of an almost identical patch from cciss by Jens Axboe.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Kleber Sacilotto de Souza [Mon, 14 Feb 2011 22:19:31 +0000 (20:19 -0200)]
[SCSI] ipr: Fix a race on multiple configuration changes
In a multiple configuration change scenario a remove notification can be
followed by an immediate add notification for the same device, which
will cause the device to be removed but never added back. This patch
fixes the problem by ensuring that in such situations the device will be
added back.
Signed-off-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
James Bottomley [Sun, 23 Jan 2011 15:44:12 +0000 (09:44 -0600)]
[SCSI] libsas: convert to libata new error handler
The conversion is quite complex given that the libata new error
handler has to be hooked into the current libsas timeout and error
handling. The way this is done is to process all the failed commands
via libsas first, but if they have no underlying sas task (and they're
on a sata device) assume they are destined for the libata error
handler and send them accordingly.
Finally, activate the port recovery of the libata error handler for
each port known to the host. This is somewhat suboptimal, since that
port may not need recovering, but given the current architecture of
the libata error handler, it's the only way; and the spurious
activation is harmless.
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
James Bottomley [Sun, 23 Jan 2011 15:42:50 +0000 (09:42 -0600)]
[SCSI] libata: separate error handler into usable components
Right at the moment, the libata error handler is incredibly
monolithic. This makes it impossible to use from composite drivers
like libsas and ipr which have to handle error themselves in the first
instance.
The essence of the change is to split the monolithic error handler
into two components: one which handles a queue of ata commands for
processing and the other which handles the back end of readying a
port. This allows the upper error handler fine grained control in
calling libsas functions (and making sure they only get called for ATA
commands whose lower errors have been fixed up).
Cc: Tejun Heo <tj@kernel.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
James Bottomley [Sun, 23 Jan 2011 14:31:14 +0000 (08:31 -0600)]
[SCSI] libata: fix eh locking
The SCSI host eh_cmd_q should be protected by the host lock (not the
port lock). This probably doesn't matter that much at the moment,
since we try to serialise the add and eh pieces, but it might matter
in future for more convenient error handling. Plus this switches
libata to the standard eh pattern where you lock, remove from the cmd
queue to a local list and unlock and then operate on the local list.
Cc: Tejun Heo <tj@kernel.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
James Bottomley [Sun, 23 Jan 2011 14:30:00 +0000 (08:30 -0600)]
[SCSI] libata: fix locking for sas paths
For historical reasons, libsas uses the scsi host lock as the ata port
lock, and libata always uses the ata host. For the old eh, this was
largely irrelevant since the two locks were never mixed inside the
code. However, the new eh has a case where it nests acquisition of
the host lock inside the port lock (this does look rather deadlock
prone). Obviously this would be an instant deadlock if the port lock
were the host lock, so switch the libsas paths to use the ata host
lock as well.
Cc: Tejun Heo <tj@kernel.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
James Bottomley [Sun, 23 Jan 2011 14:28:33 +0000 (08:28 -0600)]
[SCSI] libata: plumb sas port scan into standard libata paths
The function ata_sas_port_init() has always really done its own thing.
However, as a precursor to moving to the libata new eh, it has to be
properly using the standard libata scan paths. This means separating
the current libata scan paths into pieces which can be shared with
libsas and pieces which cant (really just the async call and the host
scan).
Cc: Tejun Heo <tj@kernel.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Moger, Babu [Fri, 11 Feb 2011 23:12:44 +0000 (16:12 -0700)]
[SCSI] scsi_dh_rdac : Adding MODULE VERSION for rdac device handler
Adding MODULE_VERSION for scsi_dh_rdac. This will be helpful sometimes
to get the code level without looking at the code.
Signed-off-by: Babu Moger <babu.moger@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Hillf Danton [Fri, 11 Feb 2011 22:17:33 +0000 (15:17 -0700)]
[SCSI] scsi_dh: cosmetic change to sizeof()
instead of doing sizeof(struct X) it's better to do sizeof(*v) where v
is the variable pointing to struct X.
Signed-off-by: Hillf Danton <dhillf@gmail.com>
Signed-off-by: Babu Moger <babu.moger@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Moger, Babu [Fri, 11 Feb 2011 22:14:08 +0000 (15:14 -0700)]
[SCSI] scsi_dh_rdac: fix for lun_table update for rdac device handler
During one of our testing, we noticed that mode select command sent
from the host did not have the lun_table updated.
Problem is root caused to the way lun table is updated. Lun table
update was done after the call to blk_rq_map_kern is made. This was
causing problem because kernel uses bounce buffer(bio_copy_kern) if
the address is not aligned. The command buffer updated after the
call(blk_rq_map_kern) was not going on the wire. Moved the code to
update the lun_table before the call to fix the problem.
Signed-off-by: Babu Moger <babu.moger@lsi.com>
Signed-off-by: Somasundaram Krishnasamy <Somasundaram.Krishnasamy@lsi.com>
Signed-off-by: Yanling Qi <Yanling.Qi@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Kashyap, Desai [Thu, 10 Feb 2011 06:21:24 +0000 (11:51 +0530)]
[SCSI] mptfusion: Remove bus reset for mptsas module
Bus reset is not required for SAS Controller. It is valid for mptspi
and mptfc, but for mptsas it is not required. It is an extra work for
Error handling escallation for mptsas. Removing bus reset from error
handling will eventually speedup Error handling for SAS controller.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Kashyap, Desai [Thu, 10 Feb 2011 06:20:39 +0000 (11:50 +0530)]
[SCSI] mptfusion: Support SAS2.0 Devices with SAS1.0 Controllers
SAS1.0 Controller was not able to detect SAS2.0 Expanders due to Link
RATE detection was limited to 1.5 Gbps and 3.0 Gbps for SAS1
controllers. Added detection for 6.0 Gbps link. Now, user can mix-up
6.0 Gpbs links with SAS1.0 controller.
e.g SAS1.0 HBA <----> SAS2.0 Expander <------> SAS2.0 Expander <--------> SAS1.0 Drive.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Bhanu Prakash Gollapudi [Sat, 29 Jan 2011 00:05:37 +0000 (16:05 -0800)]
[SCSI] libfcoe: Move common code from fcoe to libfcoe module
To facilitate LLDDs to reuse the code, skb queue related functions are moved to
libfcoe, so that both fcoe and bnx2fc drivers can use them. The common structures
fcoe_port, fcoe_percpu_s are moved to libfcoe. fcoe_port will now have an
opaque pointer that points to corresponding driver's interface structure.
Also, fcoe_start_io and fcoe_fc_crc are moved to libfcoe.
As part of this change, fixed fcoe_start_io to return ENOMEM if
skb_clone fails.
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Tejun Heo [Sat, 29 Jan 2011 00:05:32 +0000 (16:05 -0800)]
[SCSI] fcoe: use dedicated workqueue instead of system_wq
fcoe uses the system_wq to destroy ports and the work items need to be
flushed before the driver is unloaded. As the work items free the
containing data structure, they can't be flushed directly. The
workqueue should be flushed instead.
Also, the destruction works can be chained - ie. destruction of a port
may lead to destruction of another port where the work item for the
former queues the work for the latter. Currently, the depth of chain
can be at most two and fcoe_exit() makes sure everything is complete
by calling flush_scheduled_work() twice.
With commit
c8efcc25 (workqueue: allow chained queueing during
destruction), destroy_workqueue() can take care of chained works on
workqueue destruction. Add and use fcoe_wq instead. Simply
destroying fcoe_wq on driver unload takes care of flushing.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Bhanu Prakash Gollapudi [Sat, 29 Jan 2011 00:05:27 +0000 (16:05 -0800)]
[SCSI] libfc: introduce LLD event callback
This patch enables LLD to listen to rport events and perform LLD
specific operations based on the rport event. This patch also stores
sp_features and spp_type in rdata for further reference by LLD.
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Kiran Patil [Sat, 29 Jan 2011 00:05:22 +0000 (16:05 -0800)]
[SCSI] libfc: Extending lport's roles for target if there is a registered target.
Problem:
From initaitor machine, when queried role of target (other end of connection),
it is "initiator", hence SCSI-ml doesn't send any LUN Inquiry commands.
Fix:
If there is a registered target for FC_TYPE_FCP, extend lport's params
(capability) to be target as well, By default lport params are
INITIATOR only. Having this fix, caused initiator to send SCSI LUN
inquiry command to target.
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Yi Zou [Sat, 29 Jan 2011 00:05:16 +0000 (16:05 -0800)]
[SCSI] fcoe: convert fcoe.ko to become an fcoe transport provider driver
Remove the existing sysfs entry points of the fcoe.ko module parameters that
are used to create/destroy/enable/disable an FCoE instance, rather, use the
newly added fcoe transport code to attach itself as an FCoE transport provider
when fcoe.ko gets loaded. There is no functionality change on the logic of
fcoe interacts with upper libfc and lower netdev. The fcoe transport only acts
as thin layer to provide a unified interface for all fcoe transport providers
so all FCoE instances on any network interfaces from all vendors can be
managed through the same Open-FCoE.org's user space tool package, which also
has full DCB support.
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Yi Zou [Sat, 29 Jan 2011 00:05:11 +0000 (16:05 -0800)]
[SCSI] fcoe: prepare fcoe for using fcoe transport
Prepare the fcoe to convert it to use the newly added fcoe transport, making
it as the default fcoe transport provider for libfcoe. This patch is to rename
some of the variables to avoid any confusing names later as now there are
several transports in the same file.
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Yi Zou [Sat, 29 Jan 2011 00:05:06 +0000 (16:05 -0800)]
[SCSI] libfcoe: include fcoe_transport.c into kernel libfcoe module
Now we can include the fcoe_transport.c to the build of the kernel libfcoe
module. Move the module information to fcoe_transport, and it will have
all the module parameters later for the create/destroy/enable/disable of an
FCoE instance.
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Yi Zou [Sat, 29 Jan 2011 00:05:00 +0000 (16:05 -0800)]
[SCSI] libfcoe: rename libfcoe.c to fcoe_cltr.c for the coming fcoe_transport.c
The existing libfcoe.c is mostly for FIP support, rename it to reflect that
fact and so we can add fcoe_transport.c to the make file to include both
into the libfcoe kernel module.
[ Minor modifications by Robert Love converting a few
"__attribute__((packed))" modifiers to "__packed" to remove new
checkpatch.pl WARNINGS ]
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Yi Zou [Sat, 29 Jan 2011 00:04:55 +0000 (16:04 -0800)]
[SCSI] libfcoe: add implementation to support fcoe transport
Add the new fcoe_transport.c file that implements basic fcoe transport
interface. Eventually, the sysfs entries to create/destroy/enable/disable
an FCoE instance will be coming to the fcoe transport layer, who does a
look-up to find the corresponding transport provide and pass the corresponding
action over to the identified provider.
The fcoe.ko will become the default fcoe transport provider that can support
FCoE on any given netdev interfaces, as the Open-FCoE.org's default software
FCoE HBA solution. Any vendor specific FCoE HBA driver that is built on top
of Open-FCoE's kernel stack of libfc & libfcoe as well as the user land tool
of fcoe-utils can easily plug-in and start running FCoE on their network
interfaces. The fcoe.ko will be converted to act as the default provider if
no vendor specific transport provider is found, as it is always added to the
very end of the list of attached transports.
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Yi Zou [Sat, 29 Jan 2011 00:04:50 +0000 (16:04 -0800)]
[SCSI] libfcoe: add fcoe_transport structure defines to include/scsi/libfcoe.h
add the fcoe_transport struct to the common libfcoe.h header so all fcoe
transport provides can use it to attach itself as an fcoe transport. This
is the header part, and the next patch will be the transport code itself.
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Yi Zou [Sat, 29 Jan 2011 00:04:45 +0000 (16:04 -0800)]
[SCSI] libfcoe: move logging macros into the local libfcoe.h header file
libfcoe kernel module debug macros will used by the fcoe transport code
as well when later it gets added.
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Kiran Patil [Sat, 29 Jan 2011 00:04:39 +0000 (16:04 -0800)]
[SCSI] libfc: Enhanced exchange ID selection mechanism and fix related EMA selection logic.
Problem:
In case of exchange responder case, EMA selection was defaulted to the
last EMA from EMA list (lport.ema_list). If exchange ID is selected
from offload pool and not setup DDP, resulting into incorrect
selection of EMA, and eventually dropping the packet because unable to
find exchange.
Fix:
Enhanced the exchange ID selection (depending upon request type and
exchange responder) Made necessary enhancement in EMA selection
algorithm.
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Joe Eykholt [Sat, 29 Jan 2011 00:04:34 +0000 (16:04 -0800)]
[SCSI] libfc: export seq_release() for users of seq_assign()
Target modules using lport->tt.seq_assign() get a hold on the
exchange but have no way of releasing it. Add that.
Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Robert Love [Sat, 29 Jan 2011 00:04:29 +0000 (16:04 -0800)]
[SCSI] libfc: Remove usage of the Scsi_Host's host_lock
This patch removes the use of the Scsi_Host's host_lock
within fc_queuecommand. It also removes the DEF_SCSI_QCMD
usage so that libfc has fully moved on to the new
queuecommand interface.
Signed-off-by: Robert Love <robert.w.love@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Reviewed-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Joe Eykholt [Sat, 29 Jan 2011 00:04:23 +0000 (16:04 -0800)]
[SCSI] libfc: use PRLI hook to get parameters when sending outgoing PRLI
When sending an outgoing PRLI as an initiator, get the parameters
from registered providers so that they all get a chance to decide
on roles.
The passive provider is called last, and could override the
initiator role.
Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Joe Eykholt [Sat, 29 Jan 2011 00:04:18 +0000 (16:04 -0800)]
[SCSI] libfc: add hook to notify providers of local port changes
When an SCST provider is registered, it needs to know what
local ports are available for configuration as targets.
Add a notifier chain that is invoked when any local port
that is added or deleted.
Maintain a global list of local ports and add an
interator function that calls a given function for
every existing local port. This is used when first
loading a provider.
Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Joe Eykholt [Sat, 29 Jan 2011 00:04:13 +0000 (16:04 -0800)]
[SCSI] libfc: add local port hook for provider session lookup
The target provider needs a per-instance lookup table
or other way to lookup sessions quickly without going through
a linear list or serializing too much.
Add a simple void * array indexed by FC-4 type to the fc_lport.
Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Committed-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Joe Eykholt [Sat, 29 Jan 2011 00:04:08 +0000 (16:04 -0800)]
[SCSI] libfc: add method for setting handler for incoming exchange
Add a method for setting handler for incoming exchange.
For multi-sequence exchanges, this allows the target driver
to add a response handler for handling subsequent sequences,
and exchange manager resets.
The new function is called fc_seq_set_resp().
Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Joe Eykholt [Sat, 29 Jan 2011 00:04:02 +0000 (16:04 -0800)]
[SCSI] libfc: add hook for FC-4 provider registration
Allow FC-4 provider modules to hook into libfc, mostly for targets.
This should allow any FC-4 module to handle PRLI requests and maintain
process-association states.
Each provider registers its ops with libfc and then will be called for
any incoming PRLI for that FC-4 type on any instance. The provider
can decide whether to handle that particular instance using any method
it likes, such as ACLs or other configuration information.
A count is kept of the number of successful PRLIs from the remote port.
Providers are called back with an implicit PRLO when the remote port
is about to be deleted or has been reset.
fc_lport_recv_req() now sends incoming FC-4 requests to FC-4 providers,
and there is a built-in provider always registered for handling
incoming ELS requests.
The call to provider recv() routines uses rcu_read_lock()
so that providers aren't removed during the call. That lock is very
cheap and shouldn't affect any performance on ELS requests.
Providers can rely on the RCU lock to protect a session lookup as well.
Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Randy Dunlap [Sat, 29 Jan 2011 00:03:57 +0000 (16:03 -0800)]
[SCSI] libfc: fix sparse static and non-ANSI warnings
Fix sparse warning for non-ANSI function declaration.
Declare workqueue structs as static.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Robert Love <robert.w.love@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Vasu Dev [Sat, 29 Jan 2011 00:03:52 +0000 (16:03 -0800)]
[SCSI] fcoe: drop FCoE LOGO in FIP mode
Allowing FCoE LOGO followed by CVL in this case prevents
FIP login back to the FCF and then keeps lport offline,
only FIP LOGO and CLV needs to be processed while in
FIP mode, therefore this patch drops FCoE LOGO in FIP mode.
Added fcoe_filter_frames() to filter out above mentioned LOGO
in fcoe rx path along with other existing filtering in code
for bad CRC frames. Adding separate fcoe_filter_frames function
helped with better code indentations and if needed then same
will allow adding more filters at one place in future.
This LOGO drop is added after FCP frames passed up to avoid
any additional checks on fast path for this.
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Robert Love [Sat, 29 Jan 2011 00:03:47 +0000 (16:03 -0800)]
[SCSI] fcoe: Fix module reference count for vports
vports are not grabbing module references but are
releasing them. This causes the module reference count
to decrement too many times and it wraps around past 0.
The solution is to do a module_put() in
fcoe_interface_release() so that the reference is only
released when the fcoe_interface is released. There is a
one-to-one relationship between the N_Port and the
fcoe_interface, so the module reference will only be
dropped when the N_Port is destroyed
To create symetry in the code this patch moves the
try_module_get() call into fcoe_interface_create(). This
means that only the N_Port will grab a reference to the
module when its corresponding fcoe_interface is created.
This patch also makes it so that the fcoe_interface_create()
routine encodes any error codes in the fcoe_interface
pointer returned. This way its caller, fcoe_create(), can
return an accurate error code.
Signed-off-by: Robert Love <robert.w.love@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Venkata Siva Vijayendra Bhamidipati [Sat, 29 Jan 2011 00:03:42 +0000 (16:03 -0800)]
[SCSI] fnic: Bumping up fnic version from 1.4.0.145 to 1.5.0.1.
Signed-off-by: Venkata Siva Vijayendra Bhamidipati <vbhamidi@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Venkata Siva Vijayendra Bhamidipati [Sat, 29 Jan 2011 00:03:36 +0000 (16:03 -0800)]
[SCSI] fnic: fix memory leak
Fix memory leak arising due to incorrect freeing of allocated memory
for vnic stats when unregistering a vnic.
Signed-off-by: Abhijeet Joglekar <abjoglek@cisco.com>
Signed-off-by: Venkata Siva Vijayendra Bhamidipati <vbhamidi@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Dan Carpenter [Sat, 29 Jan 2011 00:03:31 +0000 (16:03 -0800)]
[SCSI] libfc:prevent dereferencing ERR_PTR in fc_tm_done()
If we goto out, then it tries to call kfree_skb() on an ERR_PTR which
will oops. Just return directly.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Hillf Danton [Sat, 29 Jan 2011 00:03:26 +0000 (16:03 -0800)]
[SCSI] libfc: Cleanup return paths in fc_rport_error_retry
This patch makes it so that we only have one call to
fc_rport_error. This patch does not completely
consolidate return statements, there is still one return
used when not calling fc_rport_error, but alternative
solutions made the code more confusing.
[ Patch modified by Robert Love ]
[ Patch title and commit message edited by Robert Love
to make it more relevant ]
Signed-off-by: Hillf Danton <dhillf@gmail.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Hillf Danton [Sat, 29 Jan 2011 00:03:21 +0000 (16:03 -0800)]
[SCSI] libfc: Return a valid return code in fc_fcp_pkt_abort()
Here ticks_left is added to record the result of
wait_for_completion_timeout().
[ Patch title and description edited by Robert Love
to make it more descriptive ]
Signed-off-by: Hillf Danton <dhillf@gmail.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Yi Zou [Sat, 29 Jan 2011 00:03:15 +0000 (16:03 -0800)]
[SCSI] libfc: always initialize the FCoE DDP exchange id for fsp as FC_XID_UNKNOWN
The fsp's xfer_ddp is used as indication of the exchange id for the DDPed
I/O. We should always initialize it as FC_XID_UNKNOWN for a newly allocated
fsp, otherwise the fsp allocated in fc_fcp, i.e., not from queuecommand like
LUN RESET that is not doing DDP may still think DDP is setup for it since xid
0 is valid and goes on to call fc_fcp_ddp_done() in fc_fcp_resp() from
fc_tm_done(). So, set xfer_ddp as FC_XID_UNKNOWN in fc_fcp_pkt_alloc() now.
Also removes the setting of fsp->lp as it's already done when fsp is allocated.
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Hannes Reinecke [Tue, 18 Jan 2011 09:13:13 +0000 (10:13 +0100)]
[SCSI] block: improve detail in I/O error messages
Classify severity of I/O errors for target, nexus, and
transport errors.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Acked-by: Jens Axboe <jaxboe@fusionio.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Hannes Reinecke [Tue, 18 Jan 2011 09:13:12 +0000 (10:13 +0100)]
[SCSI] dm mpath: propagate target errors immediately
DM now has more information about the nature of the underlying storage
failure. Path failure is avoided if a request failed due to a target
error. Instead the target error is immediately passed up the stack.
Discard requests that fail due to non-target errors may now be retried.
Errors restricted to the path will be retried or returned if no
paths are available, irregarding the no_path_retry setting.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Acked-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Hannes Reinecke [Tue, 18 Jan 2011 09:13:11 +0000 (10:13 +0100)]
[SCSI] Add detailed SCSI I/O errors
Instead of just passing 'EIO' for any I/O error we should be
notifying the upper layers with more details about the cause
of this error.
Update the possible I/O errors to:
- ENOLINK: Link failure between host and target
- EIO: Retryable I/O error
- EREMOTEIO: Non-retryable I/O error
- EBADE: I/O error restricted to the I_T_L nexus
'Retryable' in this context means that an I/O error _might_ be
restricted to the I_T_L nexus (vulgo: path), so retrying on another
nexus / path might succeed.
'Non-retryable' in general refers to a target failure, so this
error will always be generated regardless of the I_T_L nexus
it was send on.
I/O errors restricted to the I_T_L nexus might be retried
on another nexus / path, but they should _not_ be queued
if no paths are available.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Mike Snitzer [Tue, 25 Jan 2011 16:52:17 +0000 (11:52 -0500)]
[SCSI] scsi_dh_hp_sw: fix deadlock in start_stop_endio
The use of blk_execute_rq_nowait() implies __blk_put_request() is needed
in start_stop_endio() rather than blk_put_request() --
blk_finish_request() is called with queue lock already held.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Bjørn Mork [Wed, 19 Jan 2011 09:01:14 +0000 (10:01 +0100)]
[SCSI] megaraid_sas: Sanity check user supplied length before passing it to dma_alloc_coherent()
The ioc->sgl[i].iov_len value is supplied by the ioctl caller, and can be
zero in some cases. Assume that's valid and continue without error.
Fixes (multiple individual reports of the same problem for quite a while):
http://marc.info/?l=linux-ide&m=
128941801715301
http://bugs.debian.org/604627
http://www.mail-archive.com/linux-poweredge@dell.com/msg02575.html
megasas: Failed to alloc kernel SGL buffer for IOCTL
and
[ 69.162538] ------------[ cut here ]------------
[ 69.162806] kernel BUG at /build/buildd/linux-2.6.32/lib/swiotlb.c:368!
[ 69.163134] invalid opcode: 0000 [#1] SMP
[ 69.163570] last sysfs file: /sys/devices/system/cpu/cpu3/cache/index2/shared_cpu_map
[ 69.163975] CPU 0
[ 69.164227] Modules linked in: fbcon tileblit font bitblit softcursor vga16fb vgastate ioatdma radeon ttm drm_kms_helper shpchp drm i2c_algo_bit lp parport floppy pata_jmicron megaraid_sas igb dca
[ 69.167419] Pid: 1206, comm: smartctl Tainted: G W 2.6.32-25-server #45-Ubuntu X8DTN
[ 69.167843] RIP: 0010:[<
ffffffff812c4dc5>] [<
ffffffff812c4dc5>] map_single+0x255/0x260
[ 69.168370] RSP: 0018:
ffff88081c0ebc58 EFLAGS:
00010246
[ 69.168655] RAX:
000000000003bffc RBX:
00000000ffffffff RCX:
0000000000000002
[ 69.169000] RDX:
0000000000000000 RSI:
0000000000000000 RDI:
ffff88001dffe000
[ 69.169346] RBP:
ffff88081c0ebcb8 R08:
0000000000000000 R09:
ffff880000030840
[ 69.169691] R10:
0000000000100000 R11:
0000000000000000 R12:
0000000000000000
[ 69.170036] R13:
00000000ffffffff R14:
0000000000000001 R15:
0000000000200000
[ 69.170382] FS:
00007fb8de189720(0000) GS:
ffff88001de00000(0000) knlGS:
0000000000000000
[ 69.170794] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
[ 69.171094] CR2:
00007fb8dd59237c CR3:
000000081a790000 CR4:
00000000000006f0
[ 69.171439] DR0:
0000000000000000 DR1:
0000000000000000 DR2:
0000000000000000
[ 69.171784] DR3:
0000000000000000 DR6:
00000000ffff0ff0 DR7:
0000000000000400
[ 69.172130] Process smartctl (pid: 1206, threadinfo
ffff88081c0ea000, task
ffff88081a760000)
[ 69.194513] Stack:
[ 69.205788]
0000000000000034 00000002817e3390 0000000000000000 ffff88081c0ebe00
[ 69.217739] <0>
0000000000000000 000000000003bffc 0000000000000000 0000000000000000
[ 69.241250] <0>
0000000000000000 00000000ffffffff ffff88081c5b4080 ffff88081c0ebe00
[ 69.277310] Call Trace:
[ 69.289278] [<
ffffffff812c52ac>] swiotlb_alloc_coherent+0xec/0x130
[ 69.301118] [<
ffffffff81038b31>] x86_swiotlb_alloc_coherent+0x61/0x70
[ 69.313045] [<
ffffffffa002d0ce>] megasas_mgmt_fw_ioctl+0x1ae/0x690 [megaraid_sas]
[ 69.336399] [<
ffffffffa002d748>] megasas_mgmt_ioctl_fw+0x198/0x240 [megaraid_sas]
[ 69.359346] [<
ffffffffa002f695>] megasas_mgmt_ioctl+0x35/0x50 [megaraid_sas]
[ 69.370902] [<
ffffffff81153b12>] vfs_ioctl+0x22/0xa0
[ 69.382322] [<
ffffffff8115da2a>] ? alloc_fd+0x10a/0x150
[ 69.393622] [<
ffffffff81153cb1>] do_vfs_ioctl+0x81/0x410
[ 69.404696] [<
ffffffff8155cc13>] ? do_page_fault+0x153/0x3b0
[ 69.415761] [<
ffffffff811540c1>] sys_ioctl+0x81/0xa0
[ 69.426640] [<
ffffffff810121b2>] system_call_fastpath+0x16/0x1b
[ 69.437491] Code: fe ff ff 48 8b 3d 74 38 76 00 41 bf 00 00 20 00 e8 51 f5 d7 ff 83 e0 ff 48 05 ff 07 00 00 48 c1 e8 0b 48 89 45 c8 e9 13 fe ff ff <0f> 0b eb fe 0f 1f 80 00 00 00 00 55 48 89 e5 48 83 ec 20 4c 89
[ 69.478216] RIP [<
ffffffff812c4dc5>] map_single+0x255/0x260
[ 69.489668] RSP <
ffff88081c0ebc58>
[ 69.500975] ---[ end trace
6a2181b634e2abc7 ]---
Reported-by: Bokhan Artem <aptem@ngs.ru>
Reported by: Marc-Christian Petersen <m.c.p@gmx.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Cc: "Benz, Michael" <Michael.Benz@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Tejun Heo [Mon, 24 Jan 2011 13:57:29 +0000 (14:57 +0100)]
[SCSI] pm8001: simplify workqueue usage
pm8001 manages its own list of pending works and cancel them on device
free. It is unnecessarily complex and has a race condition - the
works are canceled but not synced, so the work could still be running
during and after the data structures are freed.
This patch simplifies workqueue usage.
* A driver specific workqueue pm8001_wq is created to serve these
work items.
* To avoid confusion, the "queue" suffixes are dropped from work items
and functions.
* Delayed queueing was never used. pm8001_work now uses work_struct
instead.
* The driver no longer keeps track of pending works. All pm8001_works
are queued to pm8001_wq and the workqueue is flushed as necessary.
flush_scheduled_work() usage is removed during conversion.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Jack Wang <jack_wang@usish.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Tejun Heo [Mon, 24 Jan 2011 13:57:28 +0000 (14:57 +0100)]
[SCSI] remove flush_scheduled_work() usages
Simple conversions to drop flush_scheduled_work() usages in
drivers/scsi. More involved ones will be done in separate patches.
* NCR5380, megaraid_sas: cancel_delayed_work() +
flush_scheduled_work() -> cancel_delayed_work_sync().
* mpt2sas_scsih: drop unnecessary flush_scheduled_work().
* arcmsr_hba, ipr, pmcraid: flush the used work explicitly instead of
using flush_scheduled_work().
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Douglas Gilbert [Fri, 24 Dec 2010 02:40:37 +0000 (21:40 -0500)]
[SCSI] scsi_mid_low_api.txt recommend resid usage
As discussed in a thread on this list titled:
"RFC: short reads on block devices"
this patch adds recommendations for LLDs to set resid
when there might be uncertainty about how much data
has been returned by a device.
This patch inline and attached] is against scsi-misc-2.6.git
Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Boaz Harrosh [Sun, 23 Jan 2011 15:53:24 +0000 (17:53 +0200)]
[SCSI] libosd: osd_req_read_sg, optimize the single entry case
Since sg-read is a bidi operation, it is a gain to convert
a single sg entry into a regular read. Better do this in the
generic layer then force each caller to do so.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
James Bottomley [Sun, 23 Jan 2011 14:34:25 +0000 (08:34 -0600)]
[SCSI] libsas: remove spurious sata control register read/write
Originally, libata required the illusion that it could access the sata
control register. Now, however, it can run perfectly well without
them, so remove the dummy routines from libsas which tried to emulate
them (but only ended up causing confusion).
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
James Bottomley [Sun, 23 Jan 2011 14:19:00 +0000 (08:19 -0600)]
[SCSI] libsas: convert to standard kernel debugging
Instead of using a config option for debugging, just dump the
messages with KERN_DEBUG.
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
James Bottomley [Sun, 23 Jan 2011 14:16:24 +0000 (08:16 -0600)]
[SCSI] libsas: fix ATAPI check condition termination
ATAPI check condition needs to be treated the same as a success or
protocol return. The register returns from the PACKET command are all
correctly positioned in the device to host register FIS and so we
should collect them properly. Right at the moment this doesn't matter
because libata sends a request sense always for ATAPI errors, but if
it ever checked the registers, we should have the correct contents
just in case.
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Peter Jones [Thu, 6 Jan 2011 20:38:24 +0000 (15:38 -0500)]
[SCSI] scsi_dh: Use scsi_devinfo functions to do matching of device_handler tables.
Previously we were using strncmp in order to avoid having to include
whitespace in the devlist, but this means "HSV1000" matches a device
list entry that says "HSV100", which is wrong. This patch changes
scsi_dh.c to use scsi_devinfo's matching functions instead, since they
handle these cases correctly.
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Peter Jones [Thu, 6 Jan 2011 20:31:29 +0000 (15:31 -0500)]
[SCSI] Add scsi_dev_info_list_del_keyed()
For scsi_dh.c to use devinfo lists, we have to be able to remove entries
before rmmod.
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
kxie@chelsio.com [Tue, 11 Jan 2011 00:45:07 +0000 (16:45 -0800)]
[SCSI] cxgb3i: fixed connection problem with iscsi private ip
fixed the connection problem when the private iscsi ipv4 address is
provisioned on the interface.
Signed-off-by: Karen Xie <kxie@chelsio.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Christof Schmitt [Mon, 10 Jan 2011 10:12:40 +0000 (11:12 +0100)]
[SCSI] MAINTAINERS: Update zfcp entry
Steffen will take over the zfcp maintainer work. Update the
MAINTAINERS entry accordingly.
Acked-by: Steffen Maier <maier@linux.vnet.ibm.com>
Acked-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Jesper Juhl [Sun, 26 Dec 2010 21:14:01 +0000 (22:14 +0100)]
[SCSI] mptfusion: Fix memory leak in mptctl_getiocinfo()
A 'kfree(karg)' is missing in a failure path in
mptctl.c::mptctl_getiocinfo() which can cause a memory leak.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: "Desai, Kashyap" <Kashyap.Desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Eddie Wai [Sun, 9 Jan 2011 02:00:24 +0000 (18:00 -0800)]
[SCSI] bnx2i: Added reconnect fix connecting against Lefthand targets
The nopout's reserved field was not being initialized to zero
before being reused. Stale CDB values from previous SCSI cmds
of the same BHS offset was the cause of the disconnection
initiated by the Lefthand target.
Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
kxie@chelsio.com [Fri, 7 Jan 2011 22:45:39 +0000 (14:45 -0800)]
[SCSI] cxgbi: get rid of gl_skb in cxgbi_ddp_info
Remove gl_skb from cxgbi_ddp_info as it is only used by cxgb3i.
Signed-off-by: Karen Xie <kxie@chelsio.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
kxie@chelsio.com [Fri, 7 Jan 2011 22:45:39 +0000 (14:45 -0800)]
[SCSI] cxgbi: set ulpmode only if digest is on
There is no need to set ulpmode on the tx skbs if no digest is enabled.
Signed-off-by: Karen Xie <kxie@chelsio.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Vasiliy Kulikov [Fri, 7 Jan 2011 16:55:53 +0000 (10:55 -0600)]
[SCSI] hpsa: avoid leaking stack contents to userland
memset arg64 to zero in the passthrough ioctls to avoid leaking contents
of kernel stack memory to userland via uninitialized padding fields
inserted by the compiler for alignment reasons.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stephen M. Cameron [Fri, 7 Jan 2011 16:55:48 +0000 (10:55 -0600)]
[SCSI] hpsa: Fix problem that CMD_UNABORTABLE command status was treated as unknown
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stephen M. Cameron [Fri, 7 Jan 2011 16:55:43 +0000 (10:55 -0600)]
[SCSI] hpsa: fix use of uninitialized variable in hpsa_add_msa2xxx_enclosure_device()
Thanks to Scott Teel for noticing this.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stephen M. Cameron [Thu, 6 Jan 2011 20:48:39 +0000 (14:48 -0600)]
[SCSI] hpsa: Add a per controller commands_outstanding entry in /sys
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stephen M. Cameron [Thu, 6 Jan 2011 20:48:34 +0000 (14:48 -0600)]
[SCSI] hpsa: use usleep_range not msleep for small sleeps
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stephen M. Cameron [Thu, 6 Jan 2011 20:48:29 +0000 (14:48 -0600)]
[SCSI] hpsa: allow driver to put controller in either simple or performant mode
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stephen M. Cameron [Thu, 6 Jan 2011 20:48:24 +0000 (14:48 -0600)]
[SCSI] hpsa: take the adapter lock in hpsa_wait_for_mode_change_ack
Need to take the lock while accessing the register to check to
see if config table changes have taken effect.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stephen M. Cameron [Thu, 6 Jan 2011 20:48:18 +0000 (14:48 -0600)]
[SCSI] hpsa: do not reset unknown boards on reset_devices
This is to prevent hpsa from resetting older boards
which the cciss driver may be controlling.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stephen M. Cameron [Thu, 6 Jan 2011 20:48:13 +0000 (14:48 -0600)]
[SCSI] hpsa: limit commands allocated on reset_devices
This is to conserve memory in a memory-limited kdump scenario
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stephen M. Cameron [Thu, 6 Jan 2011 20:48:08 +0000 (14:48 -0600)]
[SCSI] hpsa: Use kernel provided PCI state save and restore functions
and use the doorbell reset method if available (which doesn't
lock up the controller if you properly save and restore all
the PCI registers that you're supposed to.)
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stephen M. Cameron [Thu, 6 Jan 2011 20:48:03 +0000 (14:48 -0600)]
[SCSI] hpsa: fix board status waiting code
After a reset, we should first wait for the board to become "not ready",
and then wait for it to become "ready", instead of immediately
waiting for it to become "ready", and do this waiting *after*
restoring PCI config space registers. Also, only wait 10 secs
for board to become "not ready" after a reset (it should quickly
become not ready.)
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stephen M. Cameron [Thu, 6 Jan 2011 20:47:58 +0000 (14:47 -0600)]
[SCSI] hpsa: Remove duplicate defines of DIRECT_LOOKUP_ constants
They are defined in hpsa_cmd.h
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stephen M. Cameron [Thu, 6 Jan 2011 20:47:53 +0000 (14:47 -0600)]
[SCSI] hpsa: fixup DMA address before freeing.
Some low bits might have been set by the driver, causing
a message like this to come out:
[ 13.288062] ------------[ cut here ]------------
[ 13.293211] WARNING: at lib/dma-debug.c:803 check_unmap+0x1a1/0x654()
[ 13.300387] Hardware name: ProLiant DL180 G6
[ 13.305335] hpsa 0000:06:00.0: DMA-API: device driver tries to free
DMA memory it has not allocated [device address=0x000000007f81e001]
[size=640 bytes]
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stephen M. Cameron [Thu, 6 Jan 2011 20:47:48 +0000 (14:47 -0600)]
[SCSI] hpsa: defend against zero sized buffers in passthru ioctls
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Mike Snitzer [Wed, 5 Jan 2011 21:00:24 +0000 (16:00 -0500)]
[SCSI] scsi_dh_alua: add scalable ONTAP lun to dev list
Currently NetApp's VID/PID details in the INQUIRY response shows up as
'NETAPP' and 'LUN'. With upcoming scalable SAN ONTAP version on NetApp
controllers, the PID entry alone is being modified to 'LUN C-Mode' (to
distinguish current ONTAP LUNs from scalable ONTAP LUNs).
'LUN' would still suffice for matching 'LUN C-Mode' but best to
explicitly add these new NetApp LUNs to the device list.
Reported-by: Martin George <marting@netapp.com>
Acked-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Ilgu Hong [Wed, 5 Jan 2011 21:00:23 +0000 (16:00 -0500)]
[SCSI] scsi_dh_alua: Add Promise VTrak to dev list
Adds Promise VTrak devices to the ALUA device handler.
Signed-off-by: Ilgu Hong <ilgu.hong@promise.com>
Signed-off-by: Joseph Gruher <joseph.r.gruher@intel.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Joseph Gruher [Wed, 5 Jan 2011 21:00:22 +0000 (16:00 -0500)]
[SCSI] scsi_dh_alua: fix stpg_endio group state reporting
Initialize stpg_endio() 'err' to SCSI_DH_OK and only change it to
SCSI_DH_IO accordingly. This allows the switching of target group state
to be properly reported when no error has occurred.
Signed-off-by: Joseph Gruher <joseph.r.gruher@intel.com>
Signed-off-by: Ilgu Hong <ilgu.hong@promise.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Joseph Gruher [Wed, 5 Jan 2011 21:00:21 +0000 (16:00 -0500)]
[SCSI] scsi_dh_alua: fix deadlock in stpg_endio
The use of blk_execute_rq_nowait() implies __blk_put_request() is needed
in stpg_endio() rather than blk_put_request() -- blk_finish_request() is
called with queue lock already held.
Signed-off-by: Joseph Gruher <joseph.r.gruher@intel.com>
Signed-off-by: Ilgu Hong <ilgu.hong@promise.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Joseph Gruher [Wed, 5 Jan 2011 21:00:20 +0000 (16:00 -0500)]
[SCSI] scsi_dh_alua: fix submit_stpg return
submit_stpg() will always return failure so alua_activate() will report
failure via dm-multipath callback function. Even though the stpg fired
successfuly dm-multipath does not know and always fails to change the
valid path.
By returning SCSI_DH_OK we're now skipping alua_activate()'s call to
activate_complete 'fn'. But this is fine because stpg_endio() will call
it via h->callback_fn().
Signed-off-by: Joseph Gruher <joseph.r.gruher@intel.com>
Signed-off-by: Ilgu Hong <ilgu.hong@promise.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Kashyap, Desai [Tue, 4 Jan 2011 06:10:59 +0000 (11:40 +0530)]
[SCSI] mpt2sas: Bump version 08.100.00.00
Upgrade driver version from 7.100.00.00 to 8.100.00.00
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Kashyap, Desai [Tue, 4 Jan 2011 06:09:20 +0000 (11:39 +0530)]
[SCSI] mpt2sas: Basic Code Cleanup in mpt2sas_base
Basic Code Cleanup:
(1) _base_get_cb_idx and mpt2sas_base_free_smid were reorganized in
similar fashion so the order of obtaining the cbx and smid are
scsiio,
hi_priority, and internal.
(2) The hi_priority and internal request queue struct was made
smaller
by removing the scmd and chain_tracker, thus saving memory
allocation.
(3) For scsiio request, a new structure was created having the same
elements from the former request tracker struct.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Kashyap, Desai [Tue, 4 Jan 2011 06:06:37 +0000 (11:36 +0530)]
[SCSI] mpt2sas: Add support for Customer specific branding messages
Add support for Customer specific branding messages when device driver loads,
based on specific customer subsystem vendor and device Ids
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Kashyap, Desai [Tue, 4 Jan 2011 06:05:41 +0000 (11:35 +0530)]
[SCSI] mpt2sas: Revision P MPI Header Update
Revision P MPI Header Update:
a) Added enable/disable SATA NCQ operations to SAS IO Unit Control
Request.
b) Modified Host Based Discovery Action Request message format.
c) Removed Device Path bit from IO Unit Page 1 Flags field.
d) Added description of ChainOffset field for Diagnostic Data Upload
Tool.Chaining is not allowed.
Removed mpi2_history.txt file
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Linus Torvalds [Mon, 24 Jan 2011 09:58:39 +0000 (19:58 +1000)]
Merge branch 'BUG_ON' of git://git./linux/kernel/git/rusty/linux-2.6-for-linus
* 'BUG_ON' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
Remove MAYBE_BUILD_BUG_ON
BUILD_BUG_ON: make it handle more cases
Linus Torvalds [Mon, 24 Jan 2011 09:57:43 +0000 (19:57 +1000)]
Merge git://git./linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
module: fix missing semicolons in MODULE macro usage
param: add null statement to compiled-in module params
module: fix linker error for MODULE_VERSION when !MODULE and CONFIG_SYSFS=n
module: show version information for built-in modules in sysfs
Linus Torvalds [Mon, 24 Jan 2011 09:56:47 +0000 (19:56 +1000)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
selinux: return -ENOMEM when memory allocation fails
tpm: fix panic caused by "tpm: Autodetect itpm devices"
TPM: Long default timeout fix
trusted keys: Fix a memory leak in trusted_update().
keys: add trusted and encrypted maintainers
encrypted-keys: rename encrypted_defined files to encrypted
trusted-keys: rename trusted_defined files to trusted
Rusty Russell [Mon, 24 Jan 2011 20:45:10 +0000 (14:45 -0600)]
Remove MAYBE_BUILD_BUG_ON
Now BUILD_BUG_ON() can handle optimizable constants, we don't need
MAYBE_BUILD_BUG_ON any more.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Rusty Russell [Mon, 24 Jan 2011 20:45:10 +0000 (14:45 -0600)]
BUILD_BUG_ON: make it handle more cases
BUILD_BUG_ON used to use the optimizer to do code elimination or fail
at link time; it was changed to first the size of a negative array (a
nicer compile time error), then (in
8c87df457cb58fe75b9b893007917cf8095660a0) to a bitfield.
This forced us to change some non-constant cases to MAYBE_BUILD_BUG_ON();
as Jan points out in that commit, it didn't work as intended anyway.
bitfields: needs a literal constant at parse time, and can't be put under
"if (__builtin_constant_p(x))" for example.
negative array: can handle anything, but if the compiler can't tell it's
a constant, silently has no effect.
link time: breaks link if the compiler can't determine the value, but the
linker output is not usually as informative as a compiler error.
If we use the negative-array-size method *and* the link time trick,
we get the ability to use BUILD_BUG_ON() under __builtin_constant_p()
branches, and maximal ability for the compiler to detect errors at
build time.
We also document it thoroughly.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jan Beulich <JBeulich@novell.com>
Acked-by: Hollis Blanchard <hollisb@us.ibm.com>
Rusty Russell [Mon, 24 Jan 2011 20:32:52 +0000 (14:32 -0600)]
module: fix missing semicolons in MODULE macro usage
You always needed them when you were a module, but the builtin versions
of the macros used to be more lenient.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Linus Walleij [Wed, 5 Jan 2011 12:27:04 +0000 (13:27 +0100)]
param: add null statement to compiled-in module params
Add an unused struct declaration statement requiring a
terminating semicolon to the compile-in case to provoke an
error if __MODULE_INFO() is used without the terminating
semicolon. Previously MODULE_ALIAS("foo") (no semicolon)
compiled fine if MODULE was not selected.
Cc: Dan Carpenter <error27@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Rusty Russell [Mon, 24 Jan 2011 20:32:51 +0000 (14:32 -0600)]
module: fix linker error for MODULE_VERSION when !MODULE and CONFIG_SYSFS=n
lib/built-in.o:(__modver+0x8): undefined reference to `__modver_version_show'
lib/built-in.o:(__modver+0x2c): undefined reference to `__modver_version_show'
Simplest to just not emit anything: if they've disabled SYSFS they probably
want the smallest kernel possible.
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Dmitry Torokhov [Wed, 15 Dec 2010 22:00:19 +0000 (14:00 -0800)]
module: show version information for built-in modules in sysfs
Currently only drivers that are built as modules have their versions
shown in /sys/module/<module_name>/version, but this information might
also be useful for built-in drivers as well. This especially important
for drivers that do not define any parameters - such drivers, if
built-in, are completely invisible from userspace.
This patch changes MODULE_VERSION() macro so that in case when we are
compiling built-in module, version information is stored in a separate
section. Kernel then uses this data to create 'version' sysfs attribute
in the same fashion it creates attributes for module parameters.
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Davidlohr Bueso [Fri, 21 Jan 2011 15:28:04 +0000 (12:28 -0300)]
selinux: return -ENOMEM when memory allocation fails
Return -ENOMEM when memory allocation fails in cond_init_bool_indexes,
correctly propagating error code to caller.
Signed-off-by: Davidlohr Bueso <dave@gnu.org>
Signed-off-by: James Morris <jmorris@namei.org>
Olof Johansson [Fri, 7 Jan 2011 03:24:01 +0000 (21:24 -0600)]
tpm: fix panic caused by "tpm: Autodetect itpm devices"
commit
3f0d3d016d89a5efb8b926d4707eb21fa13f3d27 adds a check for
PNP device id to the common tpm_tis_init() function, which in some
cases (force=1) will be called without the device being a member of
a pnp_dev. Oopsing and panics ensue.
Move the test up to before the call to tpm_tis_init(), since it
just modifies a global variable anyway.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
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