Due to firmware design considerations, move to wide ID for
all commands.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

There's no point in making this an out-of-line function
since it just calls a single other function with a few
changed parameters.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Log group as well. Remove 0x prefix to match TX logging.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

This will be used by more than MVM, so move it to iwlwifi

While at it, rename WRD_METHOD to the more appropriate
WRDD_METHOD and add some documentation.
Signed-off-by: NArik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

For automatic testing packet injection can be useful.
Support injection through debugfs.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Implement support for RRM by adding an option to configure the scan
dwell time and reporting scan start time and BSS detection time, and
Advertise support for these features.
Signed-off-by: NDavid Spinadel <david.spinadel@intel.com>
Signed-off-by: NAvraham Stern <avraham.stern@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

On default queue we will not receive frame release notification,
but the BAR itself.
Upon receiving the BAR driver should look at the NSSN and adjust
window accordingly.

Fixes: b915c101 ("iwlwifi: mvm: add reorder buffer per queue")
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

There was recently a Full AP mode feature added where hostap adds
the station at auth stage, and not assoc.
However, when running with legacy hostapd, we get the auth response
before station was added, and tx_skb_non_sta fails to allocate
a queue, resulting in a complete failure of association.
Take care of this situation as well.
Add a warning when no valid queue is returned at all and make mvm
drop the packet instead of passing it on.
Refactor the function a bit while at it.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

In 9000 family products we added an option to let the OEM fuse the
mac address via registers. If these registers are zeroed we use the OTP
address instead. Make sure that the address provided by the OEM is valid
and, if not, fall back to the OTP address as well.

Fixes: commit 17c867bf ("iwlwifi: add support for getting HW address from CSR")
Signed-off-by: NHaim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

enable MU-MIMO air sniffer if it's supported by the NIC
Signed-off-by: NAviya Erenfeld <aviya.erenfeld@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

When comparing command IDs, the group should be taken
into account so the same command/notification from a
different group doesn't trigger anything unexpected.
Fix this by comparing to the wide ID.

Fixes: commit 1738d60b ("iwlwifi: mvm: handle RX MPDUs separately")
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Use skb_queue_empty() and not skb_peek_tail() to check for
empty list.
Avoid a redundant check as well - loop will take care of it.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

commit 3cd1980b ("iwlwifi: pcie: introduce new tfd and tb formats")
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Variable "ac" defined twice. Fix that.

Fixes: commit 93f436e2 ("iwlwifi: mvm: set sta_id in SCD_QUEUE_CONFIG cmd")
Signed-off-by: NLiad Kaufman <liad.kaufman@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

If adapter is null the error exit path in mwifiex_shutdown_sw is
to down the semaphore sem and print some debug via mwifiex_dbg.
However, passing a NULL adapter to mwifiex_dbg causes a null
pointer deference when accessing adapter->dev.  This fix checks
for a null adapter at the start of the function and to exit
without the need to up the semaphore and we also skip the debug
to avoid the null pointer dereference.
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

smatch reports:

sta_cmdresp.c:1053 mwifiex_create_custom_regdomain() warn: possible memory leak of 'regd'

Indeed, mwifiex_create_custom_regdomain() returns NULL in the
case that channel is missing in the TLV without freeing regd.

Moreover, some other error paths in this function return ERR_PTR
values which are assigned without checking to the regd field in
the mwifiex_adapter struct.  The latter is only null-checked where
used.

Fix by freeing regd in the error path, and only update
priv->adapter->regd if the returned pointer is valid.

Cc: Amitkumar Karwar <akarwar@marvell.com>
Cc: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: NBob Copeland <me@bobcopeland.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This powers down the 8192e correctly, or at least to the point where
the firmware will load again, when reloading the driver module.
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

As pointed out by smatch, checking the BAID for just >= INVALID
is a bad idea since only 32 (IWL_MAX_BAID) actually exist. Check
the range for that and print invalid ones in the warning.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Inside the reorder timer expire function, there's no point in
disabling BHs since it is in BH context. Remove that.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

If the firmware ever decides to send any new/more notifications
to the RSS queues, the driver would currently try to interpret
those as REPLY_RX_MPDU_CMD and, if the notification was small,
access invalid memory.

Prevent that by checking for REPLY_RX_MPDU_CMD explicitly which
allows ignoring unexpected notifications.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Avoid multiple implementations.
Signed-off-by: NSharon Dvir <sharon.dvir@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

In MSIX mode the number of irq depends on the number of
possible cpus existing on the host.
This cause to bug in case there are offline cores.
Take into account only the online CPUs instead.
Also save it in temporary variable.

Fixes: commit 2e5d4a8f ("iwlwifi: pcie: Add new configuration to enable MSIX")
Signed-off-by: NHaim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

The driver now support version 26 of the firmware APIs.
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Function is very indented. Go to msi section if needed to avoid
it and by that make the code more readable.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Use setup_timer function instead of initializing timer with the function
and data fields
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Add a new config struct for the new 8275 series and add
the first PCI ID for it.
Signed-off-by: NOren Givon <oren.givon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Add a new config struct for the new 9560 series and add
the 4 new PCI IDs for it.
Signed-off-by: NOren Givon <oren.givon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

In order to utilize the host's CPUs in the most efficient way
we bind each rx interrupt vector to each CPU on the host.
Each rx interrupt is prioritized to execute only on the designated CPU
rather than any CPU.
Processor affinity takes advantage of the fact that some remnants of
a process that was run on a given processor may remain in that
processor's memory state for example, data in the CPU cache after
another process is run on that CPU. Scheduling that process to execute
on the same processor could result in an efficient use of process by
reducing performance-degrading situations such as cache misses
and parallel processing.
Signed-off-by: NHaim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

When a STA is removed in DQA mode, if no traffic went through
its reserved queue, the txq continues to be marked as
reserved and no STA can use it.

Make sure that in such a case the reserved queue is marked
as free when the STA is removed.

Fixes: commit 24afba76 ("iwlwifi: mvm: support bss dynamic alloc/dealloc of queues")
Signed-off-by: NLiad Kaufman <liad.kaufman@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

In iwl_mvm_rx_tx_cmd_single(), when checking if a given TID is
aggregated, the driver doesn't check whether or not the queue
itself can be aggregated. For example, a management queue might
be marked as aggregated if TID 0 is aggregated on a (different)
data queue.

Make sure that mgmt frames are sent with TID IWL_TID_NON_QOS,
and in this way make sure no mixups of this sort happen.

Fixes: commit 24afba76 ("iwlwifi: mvm: support bss dynamic alloc/dealloc of queues")
Signed-off-by: NLiad Kaufman <liad.kaufman@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

In case the OS provides fewer interrupts than requested, different
causes will share the same interrupt vector as follow:
1.One interrupt less: non rx causes shared with FBQ.
2.Two interrupts less: non rx causes shared with FBQ and RSS.
3.More than two interrupts: we will use fewer RSS queues.

Also make the request depend on the number of online CPUs
instead of possible CPUs.
Signed-off-by: NHaim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Support new format. TX response will not be sent anymore,
so all needed data is in the BA response.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

The original intent was to have the general iwl_queue shared
between RX and TX queues, but it is not the actual status.
Since it is not shared with any struct but iwl_txq, it adds
unnecessary complexity. Merge those structs.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Since TFD was enlarged to 256 bytes, the fetch of the TFD
itself is very expensive.
To make DRAM to SRAM more efficient, bits 12-13 will indicate
the number of 64 byte chunks that should be transferred to
SRAM.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Previous patch introduced the new formats. This patch
allocates the new structures and adjusts code accordingly.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

In future HW the byte count table address will be configured
by ucode per queue. Add API to expose the byte count table to
the opmode
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

In a000 devices we have 15 fifos, so in the shared memory
config the number of tx fifos in the array was changed
accordingly.
As it is in the middle of the struct, the parsing code needs
to be duplicated.
To minimize the duplication, do not save variables we never
actually use.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Firmware may lock those registers for access. This results
in 9000 devices with a bus stall and an endless loop of 0x5a5a5a.
Don't dump those registers.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

New hardware supports bigger TFDs and TBs.
Introduce the new formats and adjust defines and code
relying on old format.
Changing the actual TFD allocation is trickier and
deferred to the next patch.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/iwl-io.c:243:2-3: Unneeded semicolon

 Remove unneeded semicolon.

Generated by: scripts/coccinelle/misc/semicolon.cocci

CC: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: NFengguang Wu <fengguang.wu@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>