iwlwifi: remove redundant assignment to variable bufsz

The variable bufsz is being initialized with a value that is never
read and it is being updated later with a new value. The
initialization is r

iwlwifi: remove redundant assignment to variable bufsz

The variable bufsz is being initialized with a value that is never
read and it is being updated later with a new value. The
initialization is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

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iwlwifi: dbg_ini: add TLV allocation new API support

Add new debug TLVs API preprocessing.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelh

iwlwifi: dbg_ini: add TLV allocation new API support

Add new debug TLVs API preprocessing.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: dbg_ini: add monitor dumping support

Allow collecting monitor data in ini debug mode.
Implement both SMEM and DRAM monitor regions dumping.
For DRAM monitor, support DBGC1, DBGC2 and DBGC3

iwlwifi: dbg_ini: add monitor dumping support

Allow collecting monitor data in ini debug mode.
Implement both SMEM and DRAM monitor regions dumping.
For DRAM monitor, support DBGC1, DBGC2 and DBGC3 and support several
DRAM fragments per DBGC.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: dbg: remove multi buffers infra

Legacy DRAM monitor does not support multi buffers.
Remove this infra.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca

iwlwifi: dbg: remove multi buffers infra

Legacy DRAM monitor does not support multi buffers.
Remove this infra.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: pcie: fix rb_allocator workqueue allocation

We don't handle failures in the rb_allocator workqueue allocation
correctly. To fix that, move the code earlier so the cleanup is
easier and we d

iwlwifi: pcie: fix rb_allocator workqueue allocation

We don't handle failures in the rb_allocator workqueue allocation
correctly. To fix that, move the code earlier so the cleanup is
easier and we don't have to undo all the interrupt allocations in
this case.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: pcie: fix indexing in command dump for new HW

We got a crash in iwl_trans_pcie_get_cmdlen(), while the TFD was
being accessed to sum up the lengths.

We want to access the TFD here, which i

iwlwifi: pcie: fix indexing in command dump for new HW

We got a crash in iwl_trans_pcie_get_cmdlen(), while the TFD was
being accessed to sum up the lengths.

We want to access the TFD here, which is the information for the
hardware. We always only allocate 32 buffers for the cmd queue,
but on newer hardware (using TFH) we can also allocate only a
shorter hardware array, also only 32 TFDs. Prior to the TFH, we
had to allocate a bigger TFD array but would make those point to
a smaller set of buffers.

Additionally, now max_tfd_queue_size is up to 65536, so we can
access *way* out of bounds of a really only 32-entry array, so
it crashes.

Fix this by making the TFD index depend on which hardware we are
using right now.

While changing the calculation, also fix it to not use void ptr
arithmetic, but cast to u8 * before.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: add support for suspend-resume flow for new device generation

The new device generation has a slightly different suspend resume flow
Currently, the way the driver instruct the device to mov

iwlwifi: add support for suspend-resume flow for new device generation

The new device generation has a slightly different suspend resume flow
Currently, the way the driver instruct the device to move to D3 is by
sending D3_CONFIG_CMD.
Instead of using the host command the indication is by writing to the
doorbell interrupt.
The FW will respond with interrupt to indicate transition completion.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: always access the trans configuration via trans

Stop accessing the trans configuration via the iwl_cfg structure and
always access it via the iwl_trans structure. This completes the
requir

iwlwifi: always access the trans configuration via trans

Stop accessing the trans configuration via the iwl_cfg structure and
always access it via the iwl_trans structure. This completes the
requirements to disassociate the trans-specific configuration from the
rest of the configuration.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: add a pointer to the trans_cfg directly in trans

Add a pointer to the iwl_trans structure and point it to the trans
part of the cfg. This is the first step in disassociating the trans
conf

iwlwifi: add a pointer to the trans_cfg directly in trans

Add a pointer to the iwl_trans structure and point it to the trans
part of the cfg. This is the first step in disassociating the trans
configuration from the rest of the configuration.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: pass the iwl_config_trans_params when needed

Instead of accessing the iwl_config_trans_params from the cfg that is
stored in the trans struct, pass this structure directly to functions
that

iwlwifi: pass the iwl_config_trans_params when needed

Instead of accessing the iwl_config_trans_params from the cfg that is
stored in the trans struct, pass this structure directly to functions
that need it during trans_alloc. This will be useful to isolate the
elements needed during allocation and pass them separately before the
actual cfg struct is known.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: pcie: set iwl_trans->cfg later in the probe function

Instead of setting the cfg to iwl_trans already during allocation, set
it only later when we have had the time to decide which cfg to us

iwlwifi: pcie: set iwl_trans->cfg later in the probe function

Instead of setting the cfg to iwl_trans already during allocation, set
it only later when we have had the time to decide which cfg to use.
This is part of the effort to be able to decide the cfg based on HW
revision and RF ID after iwl_trans_alloc() has been called.

For now, since we still have a bunch of code checking the HW revision
and the RF ID, we set iwl_trans->cfg early, even before we decided the
real cfg to use. We only use the trans configuration at this point,
so this is fine for now. In the future, the trans configuration will
be completely independent from the rest of the config structure, so
we'll be able to avoid this.

Additionally, we can't access the PRPH registers in iwl_trans_alloc()
anymore, so move the HW REV C-step check for family 8000 code later to
the probe function as well. This step is probably not necessary, but
if that's the case it should be removed separately later on.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: pcie: move some cfg mangling from trans_pcie_alloc to probe

There were a couple of special handling to find the correct cfg inside
iwl_trans_pcie_alloc(). Move them to iwl_pci_probe() so t

iwlwifi: pcie: move some cfg mangling from trans_pcie_alloc to probe

There were a couple of special handling to find the correct cfg inside
iwl_trans_pcie_alloc(). Move them to iwl_pci_probe() so they're
together with the rest of the decisions.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: pcie: use the cfg we passed to iwl_trans_pcie_alloc()

Instead of using iwl_trans->cfg in iwl_trans_pcie_alloc(), use the
local argument that we received. This will allow us to not to set t

iwlwifi: pcie: use the cfg we passed to iwl_trans_pcie_alloc()

Instead of using iwl_trans->cfg in iwl_trans_pcie_alloc(), use the
local argument that we received. This will allow us to not to set the
cfg during iwl_trans_alloc() so it can be decided later.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: separate elements from cfg that are needed by trans_alloc

In order to be able to select the cfg depending on the HW revision or
on the RF ID, we need to set up the trans before selecting th

iwlwifi: separate elements from cfg that are needed by trans_alloc

In order to be able to select the cfg depending on the HW revision or
on the RF ID, we need to set up the trans before selecting the cfg.
To do so, move the elements from cfg that are needed by
iwl_trans_alloc() to a separate struct at the top of the cfg, so it
can be used by other cfg types as well, before selecting the rest of
the configuration.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: dbg: align wrt log prints to the same format

Align wrt log prints to the driver coding style
Remove the ext field from the log and print it at the beginning of the
apply point.

Signed-off-

iwlwifi: dbg: align wrt log prints to the same format

Align wrt log prints to the driver coding style
Remove the ext field from the log and print it at the beginning of the
apply point.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: dbg_ini: use function to check if ini dbg mode is on

use iwl_trans_dbg_ini_valid function instead of a boolean value check if
dbg_ini mode is on. It is needed for a future patch.

Signed-of

iwlwifi: dbg_ini: use function to check if ini dbg mode is on

use iwl_trans_dbg_ini_valid function instead of a boolean value check if
dbg_ini mode is on. It is needed for a future patch.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: stop passing bogus gfp flags arguments to dma_alloc_coherent

dma_alloc_coherent is not just the page allocator. The only valid
arguments to pass are either GFP_ATOMIC or GFP_ATOMIC with po

iwlwifi: stop passing bogus gfp flags arguments to dma_alloc_coherent

dma_alloc_coherent is not just the page allocator. The only valid
arguments to pass are either GFP_ATOMIC or GFP_ATOMIC with possible
modifiers of __GFP_NORETRY or __GFP_NOWARN.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: remove pm_runtime completely

This means:
1) stop calling pm_runtime_resume when starting the hardware
2) removing the unneeded low_power parameter to start / stop hw / fw
transport ops
3

iwlwifi: remove pm_runtime completely

This means:
1) stop calling pm_runtime_resume when starting the hardware
2) removing the unneeded low_power parameter to start / stop hw / fw
transport ops
3) squashing transport functions that are now the same
_iwl_trans_pcie_start_hw / iwl_trans_pcie_start_hw

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: pcie: remove some more d0i3 code from the transport

CMD_SEND_IN_IDLE, CMD_MAKE_TRANS_IDLE and CMD_WAKE_UP_TRANS
are not used. Remove them.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumba

iwlwifi: pcie: remove some more d0i3 code from the transport

CMD_SEND_IN_IDLE, CMD_MAKE_TRANS_IDLE and CMD_WAKE_UP_TRANS
are not used. Remove them.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: pcie: remove the refs / unrefs from the transport

This code is now stale

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

iwlwifi: remove runtime_pm_mode

This is always set to IWL_PLAT_PM_MODE_DISABLED

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

iwlwifi: Set w-pointer upon resume according to SN

During D3 state, FW may send packets.
As a result, "write" queue pointer will be incremented by FW.
Upon resume from D3, driver should adjust its s

iwlwifi: Set w-pointer upon resume according to SN

During D3 state, FW may send packets.
As a result, "write" queue pointer will be incremented by FW.
Upon resume from D3, driver should adjust its shadows of "write" and "read"
pointers to the value reported by FW.

1. Keep TID used during wowlan configuration.
2. Upon resume, set driver's "write" and "read" queue pointers
to the value reported by FW.

Signed-off-by: Alex Malamud <alex.malamud@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: remove the code under IWLWIFI_PCIE_RTPM

This flag should never be set unless integration work with the
platform is done. We don't support any platforms officially and don't
plan to do so i

iwlwifi: remove the code under IWLWIFI_PCIE_RTPM

This flag should never be set unless integration work with the
platform is done. We don't support any platforms officially and don't
plan to do so in the near future, so we can remove this option
entirely in order to avoid having it enabled by mistake.

This has been marked with "depends on EXPERT", so there shouldn't be
many systems running with it set. And, if there are systems, they
should not be using this flag.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: dbg: move debug recording stop from trans to op mode

The op mode should stop the debug recording and not the transport layer.
Rename iwl_fwrt_stop_device into iwl_fw_dbg_stop_sync and move

iwlwifi: dbg: move debug recording stop from trans to op mode

The op mode should stop the debug recording and not the transport layer.
Rename iwl_fwrt_stop_device into iwl_fw_dbg_stop_sync and move the debug
stop recording to it.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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iwlwifi: pcie: handle switching killer Qu B0 NICs to C0

We need to use a different firmware for C0 versions of killer Qu NICs.
Add structures for them and handle them in the if block that detects
C0

iwlwifi: pcie: handle switching killer Qu B0 NICs to C0

We need to use a different firmware for C0 versions of killer Qu NICs.
Add structures for them and handle them in the if block that detects
C0 revisions.

Additionally, instead of having an inclusive check for QnJ devices,
make the selection exclusive, so that switching to QnJ is the
exception, not the default. This prevents us from having to add all
the non-QnJ cards to an exclusion list. To do so, only go into the
QnJ block if the device has an RF ID type HR and HW revision QnJ.

Cc: stable@vger.kernel.org # 5.2
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20190821171732.2266-1-luca@coelho.fi
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

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