- Add memcpy to mailbox completion to transfer reply correctly.
- Add support for BSG mailbox commands (dump, update_cfg, and
event_log_status).
- Add warning message and refuse mailbox command while mgmt is blocked.
- Add checks for memory allocation failure.
- Add check for sli4 dump zero BDE size.
- Only copy data if mailbox commands succeed.
- Add support for Read Event Log mailbox command.
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>
- Move the code to increase the sg seg count for LP21000 adapters.
- Check pcmd on command completion before dereferencing it.
- Clear queue memory when creating firmware queues to prevent stale entries.
- Replace the use of PAGE_SIZE in many areas that assumed it was always 4k.
- Add an else clause to a conditional that needed to unlock the hba_lock.
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>
Update driver for change in T10-PI interface on adapter
- Remove Profiles.
- Add new SLI Opcodes.
- Add new PDE structures used for BlockGuard.
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>
- Prevent log message 1801 during vport delete.
- Enable NPIV by default.
- Display correct value for max Vports on SLI4 HBAs.
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>
- Add the new Logical Link speed event support.
- Add RATOV and EDTOV to the REG_VFI mailbox command.
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>
Added check before free_pages just to make sure ioc->scsi_lookup is not NULL.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Added support in the driver to support EEH and
PCIe Advanced Error Recovery. This involves adding new
pci_error_handler interface for recovering the controller from PCI Bus
errors, such as SERR and PERR. Some tools are available for simulating
PCI errors in order to validate this interface:
http://www.kernel.org/pub/linux/utils/pci/aer-inject
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
RAID_SCSI_IO_PASSTHROUGH: Driver needs to be sending the default
descriptor for RAID Passthru, currently its sending SCSI_IO descriptor.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
There are few special cases which needs to be handled deleting old port.
CASE1: In topology you need cascaded expanders. Through sysfs just make sure
topology is up. Erase the manufacturing image of the cascaded expander and
reset the board. In some cases Adapter will receive Exapnder Add event
before expander delete. In such a case, driver needs to delete duplicate
port before adding new port.
CASE2: Enable Device Missing delay of HBA through lsiutils. If expander or
end device is hotswapped with different device before DMD timer expires,
driver will get device add for new device first and then device deletion
event for the original devices will arrive later at DMD timer expires. In
this case also driver need to delete duplicate port before adding port for
new device.
Added new function which will make sure when new port is
added, that its not claiming the same phy resources already in use by
another port. If it does, then it will delete the other port before adding
the new port.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
While testing the midlevel q_at_head and q_at_tail
patch for sg and the block SG_IO ioctl I found it
useful to reduce the queuing within the scsi_debug
driver. The reason is that the midlevel queue only
comes into play when the corresponding LLD queue
is full.
It is also useful when testing to be confident that
your program is the only thing issuing commands
to the (virtual) scsi_debug device. The no_uld=1
parameter will stop a scsi_debug virtual disk
appearing as /dev/sd* .
Changelog:
- add max_queue parameter to reduce the number
of queued commands the driver will accept.
This parameter can be changed after the driver
is loaded.
- add no_uld parameter that restricts scsi_debug's
virtual devices to the sg and bsg drivers
- correct stale url
Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Hazard testing uncovered yet another bug in sd. Under heavy reset
activity the retry counter might be exhausted and the command will be
returned with sense UNIT_ATTENTION/0x29/00 (POWER ON, RESET, OR BUS
DEVICE RESET OCCURRED). In those cases we should just increase the
retry counter again, retrying one more to clear up this Unit Attention
state.
[jejb: update to work with RC16 devices and not to loop endlessly]
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
After Host Reset firmware will have new list of device handles for the target.
Device handle refresh in driver is part of Rescan topology logic.
(See functions like *_search_responding_*). This needs to be done from Host
Reset context before making shost_recovery to 0. Currently it is done in
Firwmare event context, which may leads IO to a wrong device.
Now handler refresh is moved to HBA reset context.
Apart from this, Now driver will stop IOs for all device setting deleted
flag to 1 at the time of HBA Reset through _scsih_prep_device_scan.
It will only unblock devices, if devices has been found as part of RESCAN.
This way it will make more safe IO blocking at the time of HBA reset at
mpt2sas driver layer.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
sd always tries to submit a READ_CAPACITY(16) CDB,
regardless whether the host actually supports it.
queuecommand() will then return DID_ABORT, which is
not qualified enough to detect the true cause here.
So better check in sd_try_rc16 first if the cdblen
is supported.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
When bnx2/cnic/bnx2i drivers are loaded in certain order, bnx2i will
will not initialize the device correctly because 'hba->cnic' will be
NULL when bnx2i_start() is called from register_device() context.
Under this condition 'ifdown' and 'ifup' of associated network
interface is required to bring iscsi adapter state to ready state so
that it will accept iscsi connection setup within the chip
Initializing 'hba->cnic' before calling register_device() will fix
this issue
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
instruct firmware to use driver/iscsid provided expected statsn field
while constructing login pdu header.
Initialize 'flags' to instruct chip to use driver/iscsid provided
ExpStatSN value while constructing iSCSI login PDU header
Signed-off-by: Eddie Wai <waie@broadcom.com>
Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
The return code FAST_IO_FAIL from fc_block_scsi_eh indicates that the
pending I/O requests have been terminated as a result of the
fast_io_fail_tmo. Pass this return code back to the scsi eh to stop
the scsi eh in this case.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
If the scsi eh is running and then a FC LLD calls
fc_remote_port_delete, the SCSI commands sent from the eh will fail.
To prevent this, a FC LLD can call fc_block_scsi_eh from the eh
callback, blocking the eh thread until the dev_loss_tmo fires or the
remote port is available again.
If (e.g. for a multipathing setup) the dev_loss_tmo is set to a very
large value, thus preventing the scsi device removal , the scsi eh can
block for a long time. For multipathing, the fast_io_fail_tmo is then
set to a low value to detect path problems sooner.
This patch introduces a new return code FAST_IO_FAIL. The function
fc_block_scsi_eh now returns FAST_IO_FAIL when the fast_io_fail_tmo
fires. This indicates that the LLD terminated all pending I/O requests
and there are no more pending SCSI commands for the scsi eh to wait
for. This return code can be passed back to the scsi eh to stop the
escalation and finish the recovery process for this device.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
The default is enabled since 7e47e5ca18.
Signed-off-by: Ferenc Wagner <wferi@niif.hu>
Acked-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
The qla84xx_mgmt_cmd function supports multiple subcommands.
Some subcommands require DMA memory and some do not.
Therefore check before freeing DMA memory whether it is allocated or not.
Signed-off-by: Harish Zunjarrao <harish.zunjarrao@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
1. Segregate BSG interface specific code to new files.
2. Handle multiple vendor specific commands indepedently.
3. Reorganised support for reset, management and update FCoE firmware commands.
4. Fixed memory leak issue in Loopback.
5. Added new vendor command to support iiDMA using BSG interface.
6. Proper cleanup of dma mapped and dma allocated buffers for BSG request.
[jejb: fix up conflict and merge in Jiri Slaby lock imbalance patch]
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Harish Zunjarrao <harish.zunjarrao@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
sg address in IO request is not set up correctly for big endian platform.
add new macros to properly swap the address.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
idr is a global resource, protect it with global bfad_mutex.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Use pci_iomap() and pci_iounmap() to simplify the code. Remove uncessary #ifdef
check for ia64 (it was added as a workaound for some RHEL 5.x release which
doesn't export iounmap function)
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Currently the driver doesn't take into consideraion of possible sg chaining
when it walks through the sg list. This is fixed by using the sg_next()
which automatically handles the chaining case. Obosolete code is removed
as a result of this change.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Use duplicate fc transport template for physical and vitual port. Add
vport create/delete/disalbe functions in the transport template of physical
port. Changes to make the vport create/delete function to work under this
framework.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This patch (as1359) fixes a bug in scsi_alloc_target(). After a
device structure has been initialized (and especially after its name
has been set), it must not be freed directly. One has to call
put_device() instead.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This patch (as1358) fixes a bug in the error pathway of
scsi_target_add(). If registration fails, the target should not be
reaped. The reaping occurs later, when scanning is finished and all
the child devices are removed. The current code leaves an unbalanced
value in starget->reap_ref.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Added proper error handling after mpt_config.
Now check of MPI_IOCSTATUS_CONFIG_INVALID_PAGE is added.
If error is MPI_IOCSTATUS_CONFIG_INVALID_PAGE, driver will return -ENODEV.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
event_data needs to be 4 byte aligned to makes sure there is no unaligned
memory access take place.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
1) Corrected name string as "MPT SAS HOST"
2) Added proper check conditions for MPT_MGMT_STATUS_COMMAND_GOOD.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
1) corrected return value as SUCCESS instead of 0.
2) Added check in mptscsih_abort.
mptfusion do not support task abort for Volumes.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Added sanity checks before accessing vdevice and added vdevice->deleted
setting for mptfc.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Set factor, offset and width while target negotiation.
Added config timeout 60 seconds. It was missing for only
mptspi_read_spi_device_pg0
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Current design of mptsas is as follow.
MPTSAS will do probe() if pci id matches for available card in
system, irrespective of mode of controller. If controller is I/T mode
or I mode, things are fine. If controller is only in T mode, mptsas is
not doing complete process of mptsas_probe(). It will only make
sure IOC structure is created and IOC reference is available for
mptstm driver. Now While removing module we should take care
case of Target mode only mptsas. If we are removing IOC which is
only in Target mode, We should only detach IOC instead of
following rest of the cleanup process which is only required for T
mode controller. Now For T mode controller, only part clean up is
done instead of complete cleanup. mpt_detach will call early in case
of Target mode only controller.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
mpt_config would only attempt a MUR before retrying the command. The
driver will now retry a second time with a hard reset before leaving
the function.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Behavior changes only for IOCTLs that time out. Current behavior of
Bus Reset remains the same for RAID Passthru Timeouts Current behavior
of Diagnostic reset for any other type of IOCTL remains the same
CHANGE: For IOCTL SCSI IOs that timeout, a Target Reset TM is sent,
instead of Bus Reset. All error handing from that point is the same as
what the driver currently does, which is to say that if the Device
Reset TM fails it escalates do diagnostic reset.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Message Unit Reset - instructs the IOC to reset the Reply Post and
Free FIFO's. All the Message Frames on Reply Free FIFO are
discarded. All posted buffers are freed, and event notification is
turned off. IOC doesnt reply to any outstanding request. This will
transfer IOC to READY state. Message unit ready is less expensive
operations than Hard Reset. soft reset will not force Firmware to
reload again, it only do clean up of Message units.
mpt_Soft_Hard_ResetHandler will first try for Soft Reset,if
it fails then go for big hammer reset which is Hard Reset.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
RAID_SCSI_IO_PASSTHROUGH: Driver needs to be send the default
descriptor for RAID Passthru, currently its sending SCSI_IO descriptor.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Added proper return type values in case memory allocation failed.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Removed all the mutex's for ioc->tm_cmds.mutex, then created one
single mutex inside the function mpt2sas_scsih_issue_tm. This is the
single function used when sending task management. Also the sanity
checks required for scsi mid layer escalation were moved to inside the
same function because these checks need to be done while the mutex is
held. The ioc->tm_cmds.mutex inside the IOCTL branch is really not
required since there is another mutex in this code called for ctl_cmds
handling this sync.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
1. Fixes for little endian issues.
2. Now Debug info for Discovery event is more readable.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Now Driver will not treat NEEDS_INIT as failure. In addition to this,
the driver will now display message to describe the the access flags
when bits are set, so the end user can better understand failures.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Aded checks for shost_recovery flag for early return from function.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
use the get_free_pages API for larger contigious physical memory chunk.
Also, the ioc->chain_depth need to be changed from
a 16bit to 32bit variable because the number of chains will exceed 64k
when the queue depth is large.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
bug fix in the handling of the internal device reset event
The reason code check in scsih_sas_device_status_change_event never
evaluates as true for internal device reset, hence driver never quiesce s IO
when firmware is sending a device reset. The fix is to change the
evaluate to:
if (event_data->ReasonCode !=
MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET &&
event_data->ReasonCode !=
MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET)
return;
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
incorrect timestamp on 32 bit platforms: The upper 32 bit of
the timestamp was getting truncated when converting seconds to
milliseconds, which was due to the variable being long. To fix the problem,
the variable needs to be u64. Also the microseconds conversion to
milliseconds was incorrect; it should be divide by 1000 instead of divide by
8.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Setting handle to zero is not required before _scsih_remove_device.
Driver uses sas_device->handle reference in _scsih_remove_device.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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>
- Enable NPIV by default.
- Added code to handle unsolicited LOGO on physical port.
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>
Only abort outstanding I/O to force the OS to retry failed I/Os for AER
uncorrectable non-fatal errors instead of reseting the adapter.
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>
- Add BSG support for PCI loopback testing.
- Add BSG support for extended mailbox commands.
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>
- Correct all SLI4 code to work on big endian systems.
- Move read of sli4 params earlier so returned values are used correctly.
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>
FCF failover improvements
- Add random FCF failover when there are multiple FCFs available.
- Prevent FCF log messages from being displayed for FC adapters.
- Separate the New FCF and Modified FCF log messages.
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>
This patch fixes some issues of mptctl_exit().
1) It doesn't call mpt_deregister() for mptctl_taskmgmt_id
=> Insmoding/rmmoding mptctl.ko repeadtedly (up to
MPT_MAX_PROTOCOL_DRIVERS-1 at most) can eat up all cb_idx,
and that would cause a lack of MptCallbacks[], MptDriverClass[],
and MptEvHandlers[].
2) It doesn't call mpt_event_deregister() for mptctl_id
=> Need to call it.
3) It calls mpt_reset_deregister() for mptctl_taskmgmt_id
=> This could accidentally deregister an innocent reset handler
that you don't want to.
This patch also adds a check for mptctl_taskmgmt_id.
Signed-off-by: Kei Tokunaga <tokunaga.keiich@jp.fujitsu.com>
Acked-by: "Desai, Kashyap" <Kashyap.Desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
When the kernel is configured for preemption, using smp_processor_id()
when preemption is enabled causes a warning backtrace and is wrong
since we could move off of that CPU as soon as we get the ID,
and we would be referencing the wrong CPU, and possibly an invalid one
if it could be hotswapped out.
Remove the fc_lport_get_stats() function and explicitly use per_cpu_ptr()
to get the statistics. Where preemption has been disabled by holding
a _bh lock continue to use smp_processor_id(), but otherwise use
get_cpu()/put_cpu().
In fcoe_recv_frame() also changed the cases where we return in the
middle to do a goto to the code which bumps ErrorFrames and does
a put_cpu(). Two of these cases didn't bump ErrorFrames before, but
doing so is harmless because they "can't happen", due to prior length
checks.
Also rearranged code in fcoe_recv_frame() to have only one call to
fc_exch_recv(). It's just as efficient and saves a call to put_cpu().
In fc_fcp.c, adjusted a FIXME comment for code which doesn't need fixing.
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>
DID_ERROR cases can be ambigouos. Debugging FCP error cases
will be much easier if we have debug statements when we hit
these error conditions.
This patch simply adds debug messages using the FC_FCP_DBG
macro when we return DID_ERROR to SCSI. This way if a DID_ERROR
is reproducible turning on debug_logging will give a clue
to developers as to what the problem might be.
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Currently fc_fcp_recv_data calls fc_fcp_retry_cmd to
retry failed IO but in this case tgt is still sending
data frames, therefore exchange needs to be aborted
first before initiating retry. So this patch fixes
this by aborting exchange first then have retry.
Renames fc_timeout_error to fc_fcp_recovery since
fc_timeout_error is already called from several other
places beside from fcp timeout handler and then
used fc_fcp_recovery for abort & retry from
fc_fcp_recv_data, this rename also required renaming
FC_CMD_TIME_OUT status to FC_CMD_RECOVERY to be
consistent with new fc_fcp_recovery.
Data frames are not expected for an DDPed exchange and
potentially it could be tampered data frame, so does
recovery in this case by calling fc_fcp_recovery.
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>
Since use of offloads is more efficient than switching
to non-offload EM. However kept logic same to call em_match
if it is provided in the list of EMs.
Converted fc_exch_alloc to inline being now tiny a function
and already not an exported libfc API any more.
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>
In some cases seq is incremented twice causing unnecessary
seq jump, for instance fc_exch_recv_seq_resp increments
seq id when fc_sof_is_init is true and that is true for
each incoming xfer ready but then fc_fcp_send_data does
another seq increment to send data for xfer ready.
This patch removes all such seq id jumps, at least it
eliminates few calls to fc_seq_start_next using ex_lock.
Also removes seq id update with incoming frame's seq id
as this is not needed since each end (I or T) just need
to send incremented their own seq id on each TSI from
other end & before sending new sequence within a
exchange.
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>
When starting a new response sequence in a multi-sequence
exchange, a warning was issued that sequence initiative
wasn't held.
The bug was that sequence initiative was cleared by the previous
sequence due to the END_SEQ flag being on. The intent may have
been to check LAST_SEQ. Change just to check SEQ_INIT.
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>
The link and last_link fields in the fcoe_ctlr struct are no
longer useful, since they are always set to the same value,
and FIP always calls libfc to pass link information to the lport.
Eliminate those fields and rename link_work to timer_work, since
it no longer has any link change work to do.
Thanks to Brian Uchino for discovering this issue.
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>
Remove an unused variable, mac, in fcoe_recv_frame().
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>
The method we've been using for point-to-point mode requires
that the LS_ACC for the FLOGI uses the D_ID and S_ID assigned
to the remote port and local port, not those in the exchange.
This is not the correct method, but for now, it's what works
with the old target, as well as with new targets based on libfc.
This patch changes the addresses used accordingly.
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>
When receiving a FLOGI request from a point-to-point peer,
the D_ID of 0xfffffe was not recognized as belonging to one
of the lports, so it was dropped.
Change fc_vport_id_lookup() to treat d_id 0xfffffe as a match.
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>
In point-to-point mode, we need to save the source MAC
from received FLOGI requests to use as the destination MAC
for all outgoing frames. We stopped doing that at some point.
Use the lport_set_port_id method to catch incoming FLOGI frames
and pass them to fcoe_ctlr_recv_flogi() so it can save the source MAC.
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>
The debug message that indicated we are using non-FIP mode was
being printed only if we were already in non-FIP mode.
Also changed the message text to make it more clear the mode
is being set, not that the message is indicating how FLOGI
was received.
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>
In point-to-point mode, the destination MAC address for
the FLOGI response was zero because the LS_ACC for the FLOGI
wasn't getting intercepted by FIP.
Change to call fcoe_ctlr_els_send when sending any ELS,
not just requests.
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>
In point-to-point mode, if the PLOGI to the remote port times
out, it can get deleted by the remote port module. Since there's
no reference by the local port, lport->ptp_data points to a freed
rport, and when the local port is reset and tries to logout again,
an oops occurs in mutex_lock_nested().
Hold a reference count on the point-to-point rdata.
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>
Reduce indentation in fc_rport_recv_prli_req() using gotos.
Also add payload length checks.
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>
This patch replaces incorrect base address space flag with correct IO
resource flag. Also, performs check of memory resource to validate
resource before using.
Signed-off-by: Richard A Lary <rlary@linux.vnet.ibm.com>
Acked-by: "Desai, Kashyap" <Kashyap.Desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
The variable bfa_itnim is initialized twice to the same (side effect-free)
expression. Drop one initialization.
A simplified version of the semantic match that finds this problem is:
(http://coccinelle.lip6.fr/)
// <smpl>
@forall@
idexpression *x;
identifier f!=ERR_PTR;
@@
x = f(...)
... when != x
(
x = f(...,<+...x...+>,...)
|
* x = f(...)
)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Jing Huang <huangj@brocade.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
struct pmcraid_ioctl_header member buffer_length is unsigned, so this
check appears redundant.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Anil Ravindranath <anil_ravindranath@pmc-sierra.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This allows i == MAXHA, which is out of range
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
The region set by the call to memset is immediately overwritten by the
subsequent call to memcpy.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression e1,e2,e3,e4;
@@
- memset(e1,e2,e3);
memcpy(e1,e4,e3);
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Jack Wang <jack_wang@usish.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
external host not connecting after controller reboot: The
problem is : devices are not coming back after having the cable
disconnected then reconnected. The problem is because the
driver/firmware device removal handshake is failing. Due to this failure,
the controller firmware is not sending out device add events when the target
is reconnected. This is root caused to a race in the driver/firmware device
removal algorithm. There is duplicate code in both interrupt and user
context; where target reset is being issue from user context path while
sas_iounit_control(OP_REMOVE) is being sent from interrupt context. An
active target_reset will fail the OP_REMOVE. To fix this problem, the
duplicate code has been removed from user context path.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Upgraded version string.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Reviewed-by: Eric Moore <eric.moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
modified _scsih_sas_device_find_by_handle
so to handle the search on both list(device list and device_init_list)
Also, we moved the priority of the
search so the ioc->sas_device_list is done first. The
"sas_device_init_list" is only used during the 1st port enable, so its
unlikely there’s devices on it.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Reviewed-by: Eric Moore <eric.moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Add the cancel_pending_work flag from the fw_event_work structure, and then to
set the flag during host reset, check the flag later from work threads
context and if cancel_pending_work_flag is set ingore those events.
Now Rescan after host reset is changed.
Added special task MPT2SAS_RESCAN_AFTER_HOST_RESET. This task will be queued
at the time of HBA reset. this task is treated as barrier. All work after
MPT2SAS_RESCAN_AFTER_HOST_RESET will be treated as new work and will be
server by callback handle. If host_recovery is going on while running RESCAN
task, it will wait for shos_recovery_done completion which will be called
from HBA reset DONE context.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Reviewed-by: Eric Moore <eric.moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
The rport structure defines dev_loss_tmo as u32, which is
later multiplied with HZ to get the actual timeout value.
This might overflow for large dev_loss_tmo values. So we
should be better using u64 as intermediate variables here
to protect against overflow.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Acked-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
scsi_dma_map() returns -1 if an error occurred (zero means that the
command has no data). So the following current code can't catch an
error:
sges_left = scsi_dma_map(scmd);
if (!sges_left) {
sdev_printk(KERN_ERR, scmd->device, "pci_map_sg"
" failed: request for %d bytes!\n", scsi_bufflen(scmd));
return -ENOMEM;
}
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: "Desai, Kashyap" <Kashyap.Desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This small patch forces 60 second timeouts for the older 3w-xxxx &
3w-9xxx drivers for systems that don't contain the udev rule for
setting scsi timeouts to 60 seconds.
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stanse found that one error path in qla24xx_bsg_timeout omits to
unlock ha->hardware_lock. Fix that.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stanse found that two error paths in lpfc_bsg_rport_els_cmp and
lpfc_issue_ct_rsp_cmp omits to unlock phba->ct_ev_lock. It is
because they wrongly unlock phba->hbalock instead. Fix that.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stanse found that one error path in mgmt_invalidate_icds omits to unlock
ctrl->mbox_lock. Fix that.
Added in 756d29c8c7 (Enable async mode for mcc rings)
where the spinlock was moved.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Jayamohan Kallickal <jayamohank@serverengines.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
adpt_i2o_delete_hba() calls kfree() so we have to save "pHba->next"
before calling it. Also inside adpt_i2o_delete_hba() itself, there
was another use after free bug which I fixed by moving the kfree()
down a line.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6:
ide: Fix IDE taskfile with cfq scheduler
ide: Must hold queue lock when requeueing
ide: Requeue request after DMA timeout
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
ACPI / PM: Move ACPI video resume to a PM notifier
ACPI: Reduce ACPI resource conflict message to KERN_WARNING, printk cleanup
ACPI: battery drivers should call power_supply_changed()
ACPI: battery: Fix CONFIG_ACPI_SYSFS_POWER=n
PNPACPI: truncate _CRS windows with _LEN > _MAX - _MIN + 1
ACPI: Don't send KEY_UNKNOWN for random video notifications
ACPI: NUMA: map pxms to low node ids
ACPI: use _HID when supplied by root-level devices
ACPI / ACPICA: Do not check reference counters in acpi_ev_enable_gpe()
ACPI: fixes a false alarm from lockdep
ACPI dock: support multiple ACPI dock devices
ACPI: EC: Allow multibyte access to EC
I don't claim to understand the tty layer, but it seems like hvc_open and
hvc_close should be balanced in their kref reference counting.
Right now we get a kref every call to hvc_open:
if (hp->count++ > 0) {
tty_kref_get(tty); <----- here
spin_unlock_irqrestore(&hp->lock, flags);
hvc_kick();
return 0;
} /* else count == 0 */
tty->driver_data = hp;
hp->tty = tty_kref_get(tty); <------ or here if hp->count was 0
But hvc_close has:
tty_kref_get(tty);
if (--hp->count == 0) {
...
/* Put the ref obtained in hvc_open() */
tty_kref_put(tty);
...
}
tty_kref_put(tty);
Since the outside kref get/put balance we only do a single kref_put when
count reaches 0.
The patch below changes things to call tty_kref_put once for every
hvc_close call, and with that my machine boots fine.
Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Move MULTIPORT feature and related config changes
out of exported headers, and disable the feature
at runtime.
At this point, it seems less risky to keep code around
until we can enable it than rip it out completely.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The get_buf() API sets the second arg to the number of bytes *written*
by the other side; in this case it should be zero as these are output buffers.
lguest gets this right (obviously kvm's console doesn't), resulting in
continual buildup of console writes.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Amit Shah <amit.shah@redhat.com>
Currently early_put_chars is not used by virtio_console because it can
only be used once a port has been found, at which point it's too late
because it is no longer needed. This patch should fix it.
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
James Smart