Instead of memcpy() from a static array, just use
the new helper function eth_broadcast_addr().
Reviewed-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Instead of allocating one big chunk of DMA-coherent
memory for the firmware and keeping it around, only
vmalloc() the firmware and copy it into a single
page of DMA-coherent memory for the upload.

The advantage is that we don't need DMA memory for
the firmware image that is stored while the driver
is operating, we only need it while uploading.

This will make it easier for the driver to work if
the system has fragmented memory.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

When we kill the radio with the RF kill button we could access
the HW after having stopped the APM which would result in the
warning below.

The flow goes like this:
* RF kill
	iwlwifi notifies the stack which stops the driver
	fw sends CARD_STATE_NOTIFICATION
* iwl_trans_pcie_stop_device stops the APM
* the tasklet runs and calls to iwl_rx_handle
* iwl_rx_handle calls iwl_rx_queue_restock
* iwl_rx_queue_restock tries to access the HW...

[255908.543823] ------------[ cut here ]------------
[255908.543843] WARNING: at drivers/net/wireless/iwlwifi/iwl-io.c:150 iwl_grab_nic_access+0x79/0xb0 [iwlwifi]()
[255908.543849] Hardware name: Latitude E6410
[255908.543852] Timeout waiting for hardware access (CSR_GP_CNTRL 0x000003d8)
[255908.543856] Modules linked in: iwlmvm iwlwifi mac80211 [...]
[255908.543935] Pid: 0, comm: swapper Tainted: G        W   3.1.0 #1
[255908.543939] Call Trace:
[255908.543950]  [<c1046e42>] warn_slowpath_common+0x72/0xa0
[255908.543980]  [<c1046f13>] warn_slowpath_fmt+0x33/0x40
[255908.543992]  [<fa4bb3b9>] iwl_grab_nic_access+0x79/0xb0 [iwlwifi]
[255908.544004]  [<fa4bb9eb>] iwl_write_direct32+0x2b/0xa0 [iwlwifi]
[255908.544018]  [<fa4c0ff9>] iwl_rx_queue_update_write_ptr+0x89/0x1d0 [iwlwifi]
[255908.544054]  [<fa4c1250>] iwlagn_rx_queue_restock+0x110/0x140 [iwlwifi]
[255908.544067]  [<fa4c234d>] iwl_irq_tasklet+0x82d/0xf40 [iwlwifi]
[255908.544096]  [<c104e11e>] tasklet_action+0xbe/0x100
[255908.544102]  [<c104d91e>] __do_softirq+0xae/0x1f0
[255908.544227] ---[ end trace d150f49345d85009 ]---

Prevent this.
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Remove outdated iwlagn prefix to a few functions and fix comments
that were not accurate.
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

There's a block of code that's indented too
far, move it out to where it should be.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Reviewed-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

If an RX interrupt is signalled after or during apm_stop
we may try to access the peripherals which are already
down. Prevent this by disabling interrupts first.
Signed-off-by: NDavid Spinadel <david.spinadel@intel.com>
Reviewed-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

iwl_disable_interupts() already resets the register, no
need to do it again.
Signed-off-by: NDavid Spinadel <david.spinadel@intel.com>
Reviewed-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

These stubs are from internal experimental code
and aren't needed in the driver in the kernel
so just remove them.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

No one uses it.
Signed-off-by: NDavid Spinadel <david.spinadel@intel.com>
Reviewed-by: NAmit Beka <amit.beka@intel.com>
Reviewed-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Tracing commands builds an array of trace data
items even when the tracepoint is disabled.
Instead, loop in the tracepoint assignment.

This reduces overhead if tracing is compiled
into the driver but not enabled and slightly
reduces overall driver size as well:

   text	   data	    bss	    dec	    hex	filename
 114514	   6509	     48	 121071	  1d8ef	before/iwlwifi.ko
 114189	   6509	     48	 120746	  1d7aa	after/iwlwifi.ko
Reviewed-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: NMax Stepanov <Max.Stepanov@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Since the firmware will give us an A-MPDU bit and
only a single PHY information packet for all the
subframes in an A-MPDU, we can easily report the
minimal A-MPDU information for radiotap.
Reviewed-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

The device only supports a maximum of three
antennas, and only three bits are used, the
fourth bit is the A-MPDU indicator.

The only consequence of this is reporting
invalid information in radiotap, so this
isn't an important change.
Reviewed-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Because the hardware reports whenever an frame
was either at the start, in the middle or at
the end of a A-MPDU, we can easily report the
information for radiotap.
Signed-off-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

In case of changes in the supported rates set for a given station, it is now
possible to use this callback to update the current internal state of the
station in the htc driver.
Reported-by: NGui Iribarren <gui@altermundi.net>
Signed-off-by: NAntonio Quartulli <ordex@autistici.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NRafał Miłecki <zajec5@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NRafał Miłecki <zajec5@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

When unregistered with mac80211, we can't call its functionality
for FW restart, so avoid it and prevent automatic FW restart for
the init firmware.
Signed-off-by: NAmit Beka <amit.beka@intel.com>
Reviewed-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

There is no need to check if the ownership has been
relinquished but we should rather try to get it in a
loop.
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Advertise support for P2P Device in hwsim
to be able to test it.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

My commit "p54: parse output power table" introduced
the following compiler warnings for powerpc-allmodconfig

eeprom.c: In function 'p54_get_maxpower':
eeprom.c:291 warning: comparison of distinct pointer types lacks a cast
eeporm.c:292 warning: comparison of distinct pointer types lacks a cast
eeprom.c:293 warning: comparison of distinct pointer types lacks a cast
eeprom.c:294 warning: comparison of distinct pointer types lacks a cast

This patch fixes those by using max_t(u16
which forces a type cast.
Reported-by: NFengguang Wu <fengguang.wu@intel.com>
Tested-by: NFengguang Wu <fengguang.wu@intel.com>
Signed-off-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The brcmsmac driver requests firmware but doesn't document the
dependency. This means that software that analyzes the modules to
determine if firmware is needed won't detect it.

Specifically, (at least) openSUSE won't install the kernel-firmware
package if no hardware requires it.

This patch adds the MODULE_FIRMWARE directives.
Signed-off-by: NJeff Mahoney <jeffm@suse.com>
Acked-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This could make rc_stats more simpler and ease the debugging.
Signed-off-by: NRajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Remove ctrl_rate, cw40index, sgi_index, ht_index and calculate
the rate index for TX status from the valid_rate_index that
is populated at initialization time.
Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Calculate the final rate index inside ath_rc_tx_status().
Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The current method of assigning the RTS/CTS rate is completely
broken for HT mode and breaks P2P operation. Fix this by using
the basic_rates provided to the driver by mac80211. For now,
choose the lowest supported basic rate for HT frames.
Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

mac80211 does it for us.
Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Commit "ath9k: Change rate control to use legacy rate as last MRR"
resulted in the mixing of HT/legacy rates in a single rateset,
which is undesirable. Revert this behavior.
Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Trim API and remove unused variables.
Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

A reference to the rate table is stored inside the
private structure, so there is no need to pass "rate_table"
around.
Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Remove various local variables that duplicate information
already stored in mac80211.
Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

We're holding the sta_list_spinlock here so we can't sleep.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Acked-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Call cfg80211_michael_mic_failure() handler when there is a MIC error
event from firmware.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKiran Divekar <dkiran@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The key length can be 32 bytes for TKIP and 16 bytes for AES_CMAC.
'smatch' warns on memcpy using key_len variable to copy data to
a 16 bytes buffer. Use fixed length to avoid the warning.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

We can not assume parallel flash is always present, there are boards
with *serial* flash and probably some without flash at all.
Define some bits by the way.
Signed-off-by: NRafał Miłecki <zajec5@gmail.com>
Reviewed-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>