qcacmn: Trigger recovery incase of scheduler watchdog timeout

Trigger recovery instead of the apps panic incase of scheduler
watchdog timeout, so that the current logs are captured to
analyze the is

qcacmn: Trigger recovery incase of scheduler watchdog timeout

Trigger recovery instead of the apps panic incase of scheduler
watchdog timeout, so that the current logs are captured to
analyze the issue.

Change-Id: I44a61bc5630c4866b9d9b18f7a7ba6221ca6e355
CRs-Fixed: 3312328

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qcacmn: Fix Scheduler documentation

The kernel-doc script identified a few kernel-doc issues in the
scheduler folder, so fix them.

Change-Id: Iab5488cb765a2f5440493f28ba7c8b2716cf5953
CRs-Fixed: 33

qcacmn: Fix Scheduler documentation

The kernel-doc script identified a few kernel-doc issues in the
scheduler folder, so fix them.

Change-Id: Iab5488cb765a2f5440493f28ba7c8b2716cf5953
CRs-Fixed: 3376446

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qcacmn: Fix incompatible function pointer assignment

Fix incompatible function pointer assignment.
Define a wrapper around mc timer callbacks to
make them compatible with standard scheduler
message

qcacmn: Fix incompatible function pointer assignment

Fix incompatible function pointer assignment.
Define a wrapper around mc timer callbacks to
make them compatible with standard scheduler
message callback function signatures.

Change-Id: I07829680d1758ccbd53e8b1fe10b0e30e100a2c6
CRs-Fixed: 3305719

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qcacmn: scheduler: Fix misspellings

Fix misspellings in scheduler/...

Change-Id: I39b11d5a3755c84cf53cc5dffc995a8ea531f36a
CRs-Fixed: 3304691

qcacmn: Remove call to qdf_exit_thread()

Since Linux Kernel commit 63706172f332 ("kthreads: rework
kthread_stop()"), made in 2009 in Linux Kernel v2.6.31-rc1, it has not
been necessary for kernel th

qcacmn: Remove call to qdf_exit_thread()

Since Linux Kernel commit 63706172f332 ("kthreads: rework
kthread_stop()"), made in 2009 in Linux Kernel v2.6.31-rc1, it has not
been necessary for kernel threads to call do_exit(). Since we do not
support kernels earlier than that, remove the call to
qdf_exit_thread(), the abstraction function for do_exit().

See Change-Id I22f27692fa8766df080630b9b0640c259285557c for more
information on why this call is being removed.

Change-Id: I4de812397e8910e5117bc142bf9185c02d2d3ec0
CRs-Fixed: 3300459

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qcacmn: Save jiffies value for QDF timer

Save the jiffies value in a per-timer context
in qdf_mc_timer_t while processing qdf_mc_timer_start
and scheduler_mc_timer_callback. It will help the
debugge

qcacmn: Save jiffies value for QDF timer

Save the jiffies value in a per-timer context
in qdf_mc_timer_t while processing qdf_mc_timer_start
and scheduler_mc_timer_callback. It will help the
debugger to know the exact time gap between the
start and stop/expiry of the QDF timer.

Change-Id: Ia79011971184de9390632253417ee35dc7d26cf8
CRs-Fixed: 3283746

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qcacmn: Handle gracefully if scheduler cb is not registered

Currently when firmware crashes during driver load,
message queue handlers for scheduler context are not
registered. While handling the FW

qcacmn: Handle gracefully if scheduler cb is not registered

Currently when firmware crashes during driver load,
message queue handlers for scheduler context are not
registered. While handling the FW down event, driver
posts the message to scheduler queue. Since the queue
handler is not registered, it results in crash.

To address this issue, handle the msg gracefully and
return error in case callback is not registered.

CRs-Fixed: 3251983
Change-Id: I5dd55e701cf332153dca1f6678271506b9690f6e

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qcacmn: Disable panic for scheduler timeouts

When a scheduler message starts porcessing,we start
the scheduler watchdog timer, and in few cases when the
system get under heavy load processing taskle

qcacmn: Disable panic for scheduler timeouts

When a scheduler message starts porcessing,we start
the scheduler watchdog timer, and in few cases when the
system get under heavy load processing tasklets
and bottom halves, and the scheduler message is preempted,
its not getting a chance to run and the scheduler watchdog
timer is triggered and it causes a panic.

Since the scheduler watchdog timmer is less than
the kernel RCU timer, were are having scenarios, where
because of the scheduler watchdog panic, the RCU stall is masked.

So in case of scheduler watchdog we wanted to just print
the information about the message being processed by the scheduler
and not panic.

Change-Id: I509abcd8cd8d2e863dc3f2370ceaa70e0d4f244f
CRs-Fixed: 3004176

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qcacmn: Add API to configure scheduler watchdog timeout

The scheduler watchdog timeout is currently fixed at 10secs.
There are few customer use cases, where the CPU is busy for
sometime and the sche

qcacmn: Add API to configure scheduler watchdog timeout

The scheduler watchdog timeout is currently fixed at 10secs.
There are few customer use cases, where the CPU is busy for
sometime and the scheduler message processing is taking longer than
the coinfigured watchdog timeout value.

Add a new API to be able to configure this value different than the
default as per the requirement.

CRs-Fixed: 2834194
Change-Id: I976f1f0ad17f09cf3960f99ad80226d775b8b2f2

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qcacmn: Check if the scheduler thread is already flushed

During the module initialization the scheduler thread and the
init thread run in parallel if there is a failure in the error
path, the schedu

qcacmn: Check if the scheduler thread is already flushed

During the module initialization the scheduler thread and the
init thread run in parallel if there is a failure in the error
path, the scheduler thread is not aware and still sending
the messages to firmware resulting in system instability.
So, Disable the scheduler as soon as there is an error in the init path
and the same scheduler thread in the normal existing error path.

If the scheduler_disable is called multiple times the infinite wait
for result will get the init thread struck.

Change-Id: I39782bc88d49dac2e2138c235c4666ea4f4f2faf
CRs-Fixed: 2754023

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qcacmn: Update scheduler_msg callback type

This fixes a CFI failure in callback assignment.

Currently, the callbacks in scheduler_msg are void function
pointers. Update them to have a defined type

qcacmn: Update scheduler_msg callback type

This fixes a CFI failure in callback assignment.

Currently, the callbacks in scheduler_msg are void function
pointers. Update them to have a defined type as
scheduler_msg_process_fn_t to catch type mismatch during
compilation.

Other changes to conform to this new type include:
1. Cast callback to qdf_mc_timer_callback_t when
referencing, and back when assigning
2. Cast wlan_serialization_generic_timer_cb to
take fit into scheduler_msg
3. Cast target_if_vdev_mgr_rsp_timer_cb to fit
into scheduler_msg

Change-Id: I052bc54826d377ae92f5bcc80ca08afb6f5e01e3
CRs-fixed: 2719975

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qcacmn: Ignore sched watchdog timeout incase of recovery

For some targets, whenever the recovery is triggered in the scheduler
thread context, in the same context the firmware dump collection
could

qcacmn: Ignore sched watchdog timeout incase of recovery

For some targets, whenever the recovery is triggered in the scheduler
thread context, in the same context the firmware dump collection
could also happen and can more time than the watchdog timeout for
the same.

So check and ignore watchdog timeout when the recovery is already
inprogress.

Change-Id: I0e74e73139a83c6361407fe2eef8d6d0cf2a5d8c
CRs-Fixed: 2718984

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