Commit Graph

5195 Commits

Author SHA1 Message Date
Emmanuel Grumbach 7fe3016f24 Merge tag 'tags/mac80211-next-for-davem-2015-01-19' into iwlwifi-next
Some further updates for net-next:
 * fix network-manager which was broken by the previous changes
 * fix delete-station events, which were broken by me making the
   genlmsg_end() mistake
 * fix a timer left running during suspend in some race conditions
   that would cause an annoying (but harmless) warning
 * (less important, but in the tree already) remove 80+80 MHz rate
   reporting since the spec doesn't distinguish it from 160 MHz;
   as the bitrate they're both 160 MHz bandwidth
2015-01-22 17:54:10 +02:00
Luciano Coelho 57d7b6a4cd iwlwifi: mvm: ignore temperature updates in the RX statistics notification
If the firmware sends spontaneous DTS notfications with the
temperature (indicated in a TLV), we can ignore the temperature we get
in the RX statistics notifications.  This prevents potentially
handling the same temperature change twice.  It also ignores
notifications with temperature equal to 0 that happens from time to
time.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:54:09 +02:00
Eyal Shapira be77c29cef iwlwifi: mvm: rs: cleanup unuseful and overflowing traces
These aren't useful and overflowing so drop them
and also fix a minor typo.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:54:09 +02:00
Johannes Berg 93d17cceb2 iwlwifi: mvm: generate statistics debugfs code
There's no need to duplicate the structure field name in the string,
just generate the string in the macro that's there anyway. To keep
the debugfs output the same, rename one (otherwise unused) field.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:54:08 +02:00
Johannes Berg d19ac58971 iwlwifi: mvm: move statistics API to new header file
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:54:07 +02:00
Johannes Berg 75e52472ad iwlwifi: mvm: sync statistics firmware API
The firmware API structs are split differently, synchronize
the struct splits with the current firmware definitions.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:54:06 +02:00
Emmanuel Grumbach 66396583e1 iwlwifi: correctly set the NMI register
When we want to trigger an NMI in the device, we need to set
bit 7 and not bit 0. However, older firmwares don't register
to the interrupt issued by bit 7. Use bit 7 first so that
the correct interrupt will be issued hoping that the firmware
will react. To be on the safe side, set bit 0 in case the
firmware didn't register to the proper interrupt.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:54:05 +02:00
Liad Kaufman 04fd2c2822 iwlwifi: mvm: add rxf and txf to dump data
When the FW is in error status - try to read the RXF and
TXF (all of them) and add them to the dump data.

This shouldn't happen in non-error statuses, as we don't
want to stop the RXF/TXF while they are running.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:54:05 +02:00
Ido Yariv 861383249d iwlwifi: mvm: add support for dumping a secondary SRAM
Some HW modules have two SRAMs. In such cases add the secondary SRAM to
the list of dumped segments.

Signed-off-by: Ido Yariv <idox.yariv@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:54:04 +02:00
Johannes Berg e39c1b5f5e iwlwifi: mvm: add debugfs file for misbehaving U-APSD AP
As this functionality relies on getting a firmware notification
it is difficult to test. Allow accessing the data for it from
debugfs to be able to trigger all kinds of scenarios to test.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:54:03 +02:00
Emmanuel Grumbach 0294d9eece iwlwifi: mvm: let the firmware configure the scheduler
A new host command can be used to configure the scheduler
instead of accessing the scheduler's registers from the
driver. This is easier and less error prone since accessing
the hardware at certain moments can lead to races with the
firmware.
Prefer to use the host command whenever it is available.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:54:02 +02:00
David Spinadel 3cae0734af iwlwifi: mvm: scan dwell time corrections
Use only basic dwell time (10 ms for active scan and 110 for passive),
regardless of the number of the probes and the band, if it is
supported by the FW. The FW will add 3 ms for each probe sent and 10
ms for low band channels.
Add a TLV flag to indicate such support in FW.

This fix is needed to fix few bugs regarding scans that take too much time.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:54:01 +02:00
Emmanuel Grumbach d42537bc47 iwlwifi: remove unused TLV capability flags
The driver doesn't support the firmwares that don't have
these capabilities. The code that actually used these
flags has been removed already, but the flags were left
for an unclear reason. Remove them.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:54:00 +02:00
Eran Harary 2a831e0806 iwlwifi: mvm: add print of he nvm version
Print the nvm version in the log for debugging purposes.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:54:00 +02:00
Haim Dreyfuss 44e9cd7e40 iwlwifi: mvm: set max_out_time equal to frag_passive_dwell in fragmented scan
Fragmented scan should be applied for all channels, passive and active.
When scanning on passive channels the firmware uses frag_passive_dwell
to define the maximum continuous scan time before returning to the
operating channel. On active channels max_out_time is the parameter
used by the firmware to define the maximum time allowed out of the
operating channel. Since active channels' scan should also be fragmented
set max_out_time equal to frag_passive_dwell.
In addition:
- Set max_out_time and suspend_time if the firmware doesn't support
  fragmented scan to avoid unexpected behavior.
- Adjust max_out_time for second level of scan precedence.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Reviewed-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:53:59 +02:00
Emmanuel Grumbach afe08e1cd5 iwlwifi: mvm: rs: allow to disable MIMO for P2P only
This is to work around interoperability bugs with devices
that don't hanle MIMO properly.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:53:58 +02:00
Emmanuel Grumbach e66e0b7076 iwlwifi: mvm: allow to collect debug data from non-sleepable context
iwl_mvm_fw_dbg_collect allows to collect debug data from
the firmware. Most of the firmware interaction is done in
non-sleepable context. It makes little sense to force the
caller of iwl_mvm_fw_dbg_collect to sleep.
Defer the actual collection to a worker so that this
function will be able to be called from any context.

Reviewed-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:53:57 +02:00
Liad Kaufman e93475a0ff iwlwifi: mvm: make sure state isn't in d0i3 when stopping fw monitor
In case platform is in d0i3 - make sure it is awake when
writing the registers to stop the monitor when collecting FW
debug data. Plus, remove unneeded mutex locking currently
done.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:53:56 +02:00
Alexander Bondar e5d7464652 iwlwifi: mvm: Add debugfs entry to enable scan offload notification
This option enables scan offload iteration complete notification from
firmware which includes the last iteration's status and the scanned
channels from the current iteration.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:53:56 +02:00
Oren Givon 9b8a7a9077 iwlwifi: add new config and PCI IDs for 4165 series
Add a new config for 4165 series over PCI and insert support
for two new 4165 series PCI IDs.

Signed-off-by: Oren Givon <oren.givon@intel.com>
Reviewed-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:53:55 +02:00
Liad Kaufman fb2380a206 iwlwifi: mvm: make sure state isn't in d0i3 when collecting fw dbg
This makes sure that we're not trying to read/write any of
the FW debug data collected during d0i3.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:53:54 +02:00
Eyal Shapira bd9993182a iwlwifi: mvm: rs: repeat initial legacy rates in LQ table
Repeating the legacy rates avoids degrading quickly to
lower rates due to collisions which is common when doing
TCP Tx traffic in legacy.
This slightly improves TCP Tx throughput while working
in legacy in different scenarios.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:53:53 +02:00
Eyal Shapira 9ce578a558 iwlwifi: mvm: don't indicate no BA if STA was in powersave
If Tx failed because the STA was in powersave there's no point
in sending a BAR so avoid indicating AMPDU_NO_BACK to mac80211.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22 17:53:52 +02:00
Eyal Shapira 2cee4762c5 iwlwifi: mvm: validate tid and sta_id in ba_notif
These are coming from the FW and are used to access arrays.
Bad values can cause an out of bounds access so discard
such ba_notifs and warn.

CC: <stable@vger.kernel.org> [3.10+]
Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-20 08:47:16 +02:00
Emmanuel Grumbach 90ea15c114 iwlwifi: mvm: abort scheduled scan upon RFKILL
When we have an active scheduled scan, and the RFKILL
interrupt kicks in, the stack will cancel the scheduled
scan as part of the down flow. But cancelling scheduled
scan usually implies sending a command to the firwmare
which has been killed as part of the RFKILL interrupt
handling.
Because of that, we returned an error to mac80211 when
it asked to stop the scheduled scan and didn't notify the
end of the scheduled scan. Besides a fat warning, this led
to a situation in which cfg80211 would refuse any new scan
request.

To disentangle this, fake that the scheduled scan has been
stopped without sending the command to the firwmare, return
0 after having properly let cfg80211 know that the scan
has been cancelled.

This is basically the same as:
commit 9b520d8495
Author: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date:   Tue Nov 4 15:54:11 2014 +0200

    iwlwifi: mvm: abort scan upon RFKILL

    This code existed but not for all the different FW APIs
    we support.
    Fix this.

but for the scheduled scan case.

Link: http://permalink.gmane.org/gmane.linux.kernel.wireless.general/133232
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-18 22:04:37 +02:00
Eyal Shapira 9b3b43d8d1 iwlwifi: mvm: set the tx cmd tid for BAR frame correctly
BAR tx cmd tid was set to non qos (8). This is wrong as BAR
should be sent with the tid of the BA session.
This led to a corruption in the firmware. The visible
effect of this from the driver side is the BA notification
that comes back after the BAR. It was botched and led to the
WARNING below.

------------[ cut here ]------------
WARNING: CPU: 2 PID: 17707 at /home/tester/workspace_hostap/iwlwifi/drivers/net/wireless/iwlwifi/mvm/tx.c:976 iwl_mvm_rx_ba_notif+0x4ba/0x4d0 [iwlmvm]()
Q 4500, tid 8, flow 65535
Modules linked in: iwlmvm(O) mac80211(O) iwlwifi(O) cfg80211(O) compat(O) netconsole configfs ctr ccm arc4 autofs4 microcode bnep rfcomm snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic snd_hda_intel joydev snd_hda_codec uvcvideo videobuf2_core snd_hwdep videodev snd_pcm videobuf2_vmalloc videobuf2_memops i915 snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device drm_kms_helper dell_wmi dell_laptop drm btusb bluetooth snd psmouse i2c_algo_bit sparse_keymap wmi soundcore 6lowpan_iphc dcdbas serio_raw video lpc_ich ppdev mac_hid parport_pc nfsd nfs_acl auth_rpcgss nfs fscache binfmt_misc lockd sunrpc lp parport msdos sdhci_pci sdhci mmc_core ahci libahci e1000e ptp pps_core [last unloaded: compat]
CPU: 2 PID: 17707 Comm: irq/46-iwlwifi Tainted: G        W  O 3.14.17-patched #4
Hardware name: Dell Inc. Latitude E6430/0CPWYR, BIOS A09 12/13/2012
 00000000 00000000 ebd49d6c c1616221 f985dbdc ebd49d9c c1044e44 f9861df4
 ebd49dc8 0000452b f985dbdc 000003d0 f98395da f98395da ebd49f10 eaf3d8a4
 0000ffff ebd49db4 c1044f03 00000009 ebd49dac f9861df4 ebd49dc8 ebd49e64
Call Trace:
 [<c1616221>] dump_stack+0x41/0x52
 [<c1044e44>] warn_slowpath_common+0x84/0xa0
 [<f98395da>] ? iwl_mvm_rx_ba_notif+0x4ba/0x4d0 [iwlmvm]
 [<f98395da>] ? iwl_mvm_rx_ba_notif+0x4ba/0x4d0 [iwlmvm]
 [<c1044f03>] warn_slowpath_fmt+0x33/0x40
 [<f98395da>] iwl_mvm_rx_ba_notif+0x4ba/0x4d0 [iwlmvm]
 [<c10e3952>] ? ring_buffer_unlock_commit+0xa2/0xd0
 [<c10e9767>] ? trace_buffer_unlock_commit+0x37/0x50
 [<f98568a3>] ? iwl_tm_mvm_send_rx+0x53/0x90 [iwlmvm]
 [<f98327a8>] iwl_mvm_rx_dispatch+0x108/0x130 [iwlmvm]
 [<f9eac7e7>] iwl_pcie_irq_handler+0xf17/0x15b0 [iwlwifi]
 [<c10994c1>] irq_thread_fn+0x21/0x50
 [<c109926c>] irq_thread+0xec/0x110
 [<c10994a0>] ? irq_thread_dtor+0xb0/0xb0
 [<c10993f0>] ? irq_finalize_oneshot.part.34+0xc0/0xc0
 [<c1099180>] ? wake_threads_waitq+0x40/0x40
 [<c1062fdb>] kthread+0x9b/0xb0
 [<c1627137>] ret_from_kernel_thread+0x1b/0x28
 [<c1062f40>] ? flush_kthread_worker+0x90/0x90
---[ end trace 5e0f67374816db17 ]---

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-13 08:53:23 +02:00
Emmanuel Grumbach 4e6c48e098 iwlwifi: mvm: drop non VO frames when flushing
This change has already been implemented in iwldvm:

commit a260e7b3f0307878b99d57ed1406cf2d497923b8
Author: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date:   Sun Oct 5 09:11:14 2014 +0300

    iwlwifi: dvm: drop non VO frames when flushing

Since I added the flush() callback implementation in mvm,
we got reports that the queues are stuck while roaming
or suspending.
This commit above helped much for iwldvm, implement the
same behavior for iwlmvm.

CC: <stable@vger.kernel.org> [3.16+]
Fixes: c5b0e7c056 ("iwlwifi: mvm: implement mac80211's flush callback")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-12 16:34:26 +02:00
David Spinadel 1f9c418fd9 iwlwifi: mvm: fix EBS on single scan
EBS error detection isn't supported by all FWs, so turn it on
only if the FW advertises such support.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-12 09:56:19 +02:00
Emmanuel Grumbach 91f491fd7d iwlwifi: bump firmware API for mvm devices to 12
This allows 3160 / 7260 / 7265 / 7265D / 8000 devices to
use the latest version of the firmware.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-05 11:02:37 +02:00
David Spinadel 720daf20cc iwlwifi: mvm: scan dwell time corrections
Use only basic dwell time (10 ms for active scan and 110 for passive),
regardless of the number of the probes and the band, if it is
supported by the FW. The FW will add 3 ms for each probe sent and 10
ms for low band channels.
Add a TLV flag to indicate such support in FW.

This fix is needed to fix few bugs regarding scans that take too much time.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-05 11:02:37 +02:00
David Spinadel 7e2a38831d iwlwifi: mvm: add a flag to enable match found notification
Add a flag that enables match found notification to align with
FW API change.

Cc: <stable@vger.kernel.org> [3.17+]
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-05 11:02:36 +02:00
Eyal Shapira a9dc5060bf iwlwifi: mvm: fix out of bounds access to tid_to_mac80211_ac
When tid_tspec was set to IWL_TID_NON_QOS (8) this led to an
out of bounds access to the tid_to_mac80211_ac array whose size
is 7. Fix this.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-05 11:02:35 +02:00
Eyal Shapira c93edc6393 iwlwifi: mvm: fix Rx with both chains
commit 5c90422439
"iwlwifi: mvm: don't allow diversity if BT Coex / TT forbid it"
broke Rx with 2 chains for diversity.
This had an impact on throughput where we're using only a single
stream (11a/b/g APs, single stream APs, static SMPS).

Fixes: 5c90422439 ("iwlwifi: mvm: don't allow diversity if BT Coex / TT forbid it")
Cc: Stable <stable@vger.kernel.org>  [3.16+]
Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-05 11:02:34 +02:00
Emmanuel Grumbach a443f5e16b iwlwifi: 7000: fix reported firmware name for 7265D
We were advertising iwlwifi-7265-X.ucode instead of
iwlwifi-7265D-X.ucode. Fix this.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-05 11:02:34 +02:00
Arik Nemtsov 2b0e2b0f7b iwlwifi: pcie: correctly define 7265-D cfg
The trans cfg was not replaced for 7265-D cards. This led to a check of
the min-NVM version against a 7265-C card, causing very-old 7265-D cards
to operate incorrectly with the driver.

Fixes: 3fd0d3c170 ("iwlwifi: pcie: support 7265-D devices")
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-05 11:01:41 +02:00
Eyal Shapira 834437dab9 iwlwifi: mvm: rs: organize and cleanup consts
Organize and cleanup the consts used by rs.
This is part of making some of these configurable.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:16:53 +02:00
Haim Dreyfuss c3f8d0a3af iwlwifi: mvm: Alter passive scan fragmentation parameters in case of multi-MAC
Make passive scan fragmentation depends on the number of active
interfaces. In case of single-MAC, make passive scan less fragmented.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Reviewed-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:13:40 +02:00
Eran Harary ff29862464 iwlwifi: mvm: call to pcie_apply_destination also on family 8000 B step
In order to config the FW and to allocate monitor buffer driver should
run the function iwl_pcie_apply_destination immediately after FW sections
are loaded.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:13:40 +02:00
Haim Dreyfuss a1ed402576 iwlwifi: mvm: Configure EBS scan ratio
This configuration defines the ratio between number of scan iterations
where EBS is involved to those where it is not.
This configuration was left unconfigured due to inaccurate documentation.
Fix documentation as well.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:06:14 +02:00
Eliad Peller d9f1fc209f iwlwifi: mvm: ask the fw to wakeup (from d0i3) on sysassert
Set the wakeup flag (of the d3 command) to configure the fw
to wakeup when sysassert happens while in d0i3.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:05:49 +02:00
Liad Kaufman b48217670f iwlwifi: tlv: add support for IWL_UCODE_TLV_SDIO_ADMA_ADDR TLV
A new TLV supplies the ADMA address for SDIO mode, allowing
the driver to configure the default base address to be this
(as given in the FW), rather than hardcoding the values to
use until the FW sends the ALIVE message.

Use the value given by the FW in the IWL_UCODE_TLV_SDIO_ADMA_ADDR
TLV for setting the default SDTM base address until the FW sends
the ALIVE message. If it isn't given in the FW - use the current
hardcoded values.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:05:09 +02:00
Johannes Berg 9d8ce6afe1 iwlwifi: mvm: use iwl_mvm_sta_from_mac80211() consistently
A number of places (still) use a direct operation, use
iwl_mvm_sta_from_mac80211() consistently. In one place
also move it into the variable initializer.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:04:34 +02:00
Johannes Berg 5b530e95a9 iwlwifi: mvm: use iwl_mvm_vif_from_mac80211() consistently
There are a few places not using it, use it at those places.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:04:00 +02:00
Emmanuel Grumbach a70393fc4e iwlwifi: remove useless extern definition of iwl4265_2ac_sdio_cfg
This device was renamed, but the external definition remained there.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:23 +02:00
Eliad Peller 744cb69564 iwlwifi: mvm: clean refs before stop_device()
Some implementations (i.e. mini_rpm) assume the references
are managed only while the device is started.

Move the stale reference cleanup before stopping the
device in order to make them happy.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:23 +02:00
Julia Lawall bd9c504bfd iwlwifi: dvm: main: Use setup_timer
Convert a call to init_timer and accompanying intializations of
the timer's data and function fields to a call to setup_timer.

A simplified version of the semantic match that fixes this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression t,f,d;
@@

-init_timer(&t);
+setup_timer(&t,f,d);
-t.data = d;
-t.function = f;
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:22 +02:00
Julia Lawall c1dc8288fe iwlwifi: dvm: tt: Use setup_timer
Convert a call to init_timer and accompanying intializations of
the timer's data and function fields to a call to setup_timer.

A simplified version of the semantic match that fixes this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression t,f,d;
@@

-init_timer(&t);
+setup_timer(&t,f,d);
-t.data = d;
-t.function = f;
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:22 +02:00
Emmanuel Grumbach 2624a5ca76 iwlwifi: mvm: support 2 different channels
The driver and the firmware now support 2 different channels
at the same time. Advertise this capability to the stack.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:21 +02:00
Eliad Peller 37948fcfd0 iwlwifi: mvm: wait for d0i3 exit on hw restart
On hw restart, make sure to wait for d0i3 exit
(by checking the IN_D0I3 status bit).

This is needed in order to avoid the stale
d0i3_exit_work from doing harm (e.g. unref
cleared reference).

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:21 +02:00
Eliad Peller b0677f7133 iwlwifi: mvm: consider d0i3_disable in iwl_mvm_is_d0i3_supported()
Consider the iwlwifi module param d0i3_disable when
considering whether d0i3 is supported.

(There is currently no need to differentiate between
supported and enabled, so keep the function as-is)

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:20 +02:00
Eliad Peller 6735943faf iwlwifi: mvm: support IWL_D0I3_MODE_ON_SUSPEND d0i3 mode
Enter d0i3 on suspend, and exit d0i3. Wait for the
command responses in both cases.

Use this mode in case of pcie trans.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:20 +02:00
Eliad Peller 0f8f93d6c8 iwlwifi: support multiple d0i3 modes
Allow configuring additional d0i3 mode, in which the
fw will be configured to enter d0i3 only on suspend
(while keeping the wake_lock accounting as usual)

The d0i3 mode to use will be determined by the
underlying trans layer.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:19 +02:00
Eliad Peller 9174244947 iwlwifi: mvm: allow both d0i3 and d3 wowlan configuration modes
d3 and d0i3 shouldn't be mutually exclusive. Set supported
wowlan triggers by looking for each of them, and check
on suspend/resume which flow should be used ("any" trigger
is supported by d0i3, and all the others by d3)

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:19 +02:00
Eliad Peller 7616f334e6 iwlwifi: pcie: add basic reference accounting
Implement the ref/unref trans ops and track both tx and
host command queues (and hold references while they
are not empty).

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:18 +02:00
Emmanuel Grumbach a549b29622 iwlwifi: mvm: convert the SRAM dump to the generic memory dump
This allows to add the offset. The type of the generic
memory dump will let the parser know that this is SRAM.

Reviewed-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:17 +02:00
Emmanuel Grumbach e06d8437cd iwlwifi: mvm: change SMEM dump to general purpose memory dump
Instead of adding a dump type for each type of memory, change
the SMEM type to be a general purpose memory dump. Add the
type of the memory and its offset in the device in the dump
itself. This will allow an external parser to know where
this memory came from.

Note that since this type isn't really in use yet, this is
not a real problem.

Reviewed-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:17 +02:00
Liad Kaufman addfaada8f iwlwifi: mvm: add smem content to dump data
In NICs that have SMEM - add its content to the dump data
for later debug.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:16 +02:00
Eran Harary 363039be5b iwlwifi: mvm: support additional nvm_file in family 8000 B step
nvm_file in family 8000 B step and A step differ. This means
that the driver should support 2 file name as default.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:16 +02:00
Eyal Shapira 6a028d9a26 iwlwifi: mvm: rs: fix max rate allowed if no rate is allowed
In case the rate mask for one of the modulations was zero the
max rate idx for that modulation was set to 32 (BITS_PER_LONG).
This is bad as it would later lead to an out of bounds access
to the expected tpt table. In most cases there was no real effect
as the expected tpt was set to 0 and this led to avoiding the
modulation effectively.
Fix the out of bounds access and explicitly skip the modulation
in case there's no rate allowed in it.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:15 +02:00
Luciano Coelho 19789abbe5 iwlwifi: mvm: clear tt values when entering CT-kill
Clear the thermal throttling values when entering CT-kill, since
everything will be reinitialized anyway when we exit CT-kill.

Additionally, clear the dynamic_smps value in the initialization
funciton, for consistency.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:15 +02:00
Ido Yariv 435da2ce52 iwlwifi: mvm: Set the HW step in the core dump
The HW step member was left out of the core dump information. Fix this.

Signed-off-by: Ido Yariv <idox.yariv@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:14 +02:00
Emmanuel Grumbach f1a6854242 iwlwifi: mvm: allow RSSI compensation
The firmware is able to compensate the rssi when we hear
the frame on a different channel.
This is true for an offset up to 3 channels.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:14 +02:00
Emmanuel Grumbach 8c23f95cca iwlwifi: mvm: add debugfs to trigger fw debug logs collection
This allows to collect the logs even if the firmware hasn't
crashed. Of course, crashing the firmware is an option, but
this is easier and nicer.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:13 +02:00
Emmanuel Grumbach b7aaeae478 iwlwifi: pcie: let the Manageability Engine know when we leave
When the driver is unload, the Manageability Engine should
know about that - send an event to inform it about this
event.

Reviewed-by: Reuven Borok <reuven.borok@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:13 +02:00
Moshe Harel a054427244 iwlwifi: mvm: support LnP 1x1 antenna configuration
The antenna configuration has to be read also from OTP
Currently read only from FW image
Guideline: An antenna exists only if appears both in FW image & NVM

Signed-off-by: Moshe Harel <moshe.harel@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 20:00:12 +02:00
Dor Shaish 7074cc4280 Revert "iwlwifi: use correct fw file in 8000 b-step"
Signed-off-by: Dor Shaish <dor.shaish@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 19:59:51 +02:00
Liad Kaufman f53bf4c758 iwlwifi: mvm: add fw runtime stack to dump data
The allocation of the DCCM between the data and the stack
can theoretically change without notice to the driver, but
the total size is HW-fixed. Since the stack CCM (runtime
stack) has also data important to the FW - this patch allows
pulling the whole DCCM in one piece and adds it to the dump
data.

If the size isn't known - just use the data part of the
DCCM as it appears in the FW TLVs.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 10:17:41 +02:00
Johannes Berg e32ec12fd1 iwlwifi: remove MODULE_VERSION
The module version "in-tree:" or "in-tree:d" is useless; there
should be better (functional) ways to detect whether debugging
is enabled and other than that the version says nothing.

Therefore remove the driver version completely.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28 10:17:40 +02:00
Johannes Berg 848955ccf0 mac80211: move U-APSD enablement to vif flags
In order to let drivers have more dynamic U-APSD support,
move the enablement flag to the virtual interface driver
flags. This lets drivers not only set it up differently
for different interfaces, but also enable/disable on the
fly if needed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-12-15 12:34:45 +01:00
Liad Kaufman baa21e8349 iwlwifi: pcie: limit fw chunk sizes given to fh
New FW has chunks that are larger than the size limit of the
FH's DMA. To make sure we don't crash it - actively limit the
max size of each chunk.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-14 10:20:30 +02:00
Emmanuel Grumbach 55fd1ce820 iwlwifi: add new device IDs for 3165
A few device IDs were added, reflect this change in the
driver.

Cc; <stable@vger.kernel.org> [3.13+]
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-14 10:20:30 +02:00
Emmanuel Grumbach 31a5a09c1c iwlwifi: don't double free a pointer if no FW was found
In the very unlikely case in which no firmware could be,
found. the same pointer was freed twice. Fix that.

Fixes: 490fefebb6 ("iwlwifi: define the .ucode file format for debug")
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-14 10:20:30 +02:00
Emmanuel Grumbach 03d6c3b0fa iwlwifi: pcie: re-ACK all interrupts after device reset
When we reset the device, the CSR_INT gets cleared as well
as CSR_INT_MASK. Meaning that we shouldn't get any interrupt
but, due to a hardware bug, recent devices will keep sending
interrupts. This leads to an interrupt storm while stopping
the device.
The way to fix this is to ACK all the interrupts after the
device is reset so that the value of CSR_INT will stay
0xffffffff.

Fixes: 522713c81e ("iwlwifi: pcie: properly reset the device")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-14 10:20:29 +02:00
Eliad Peller 0a79a0c011 iwlwifi: mvm: clear IN_HW_RESTART flag on stop()
On stop(), we already cleared our internal state,
and the restart_complete() callback won't be
called, so simply clear the IN_HW_RESTART flag.

Keeping the flag might result in invalid state
on the next start(), preventing the driver starting
properly.

Additionally, don't take IWL_MVM_REF_UCODE_DOWN on stop()
if hw restart was requested, as the ref was already
taken in this case.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-14 10:20:29 +02:00
Eran Harary 61df750cb0 iwlwifi: mvm: Ability to work with packed usniffer image
The new ucode package format holds also the usniffer images
(in addition to the operational images and the TLVs).
The driver can load the usniffer image if debug
configuration tells it to.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-02 16:51:56 +02:00
Liad Kaufman 99684ae356 iwlwifi: pcie: support more monitor types dumping
Until this patch, dumping the monitor data could be done only
for PCIe external (DRAM) mode in 7000 HW family. This patch
allows to pull the monitor data also on other families, and
also to pull the monitor data if an internal buffer is used.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-02 16:51:56 +02:00
Liad Kaufman 09e350f720 iwlwifi: pcie: config regs according to fw tlv
Sometimes there is a need to configure some registers for
setting some FW properties, such as the FW monitor mode
(internal/external). This patch supports setting this for
PCIe mode.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-02 16:51:55 +02:00
Liad Kaufman 6a95126763 iwlwifi: mvm: send dbg config hcmds to fw if set in tlv
Send all debug-configuration HCMDs that are set in the TLVs
to the FW. This may include HCMDs to configure the FW
monitor and FW log level, for example.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-02 16:51:55 +02:00
Liad Kaufman 490fefebb6 iwlwifi: define the .ucode file format for debug
Debug information can be appended to the firmware file. This
information will be used by the driver to enable / disable
debugging features in the firmware.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-02 16:50:51 +02:00
Emmanuel Grumbach b4c82adcba iwlwifi: mvm: update values for Smart Fifo
Interoperability issues were identified and root caused to
the Smart Fifo watermarks. These issues arose with
NetGear R7000. Fix this.

Cc: <stable@vger.kernel.org> [3.14+]
Fixes: 1f3b0ff8ec ("iwlwifi: mvm: Add Smart FIFO support")
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-02 12:36:52 +02:00
Emmanuel Grumbach 5a12a07e44 iwlwifi: dvm: fix flush support for old firmware
Since the commit below, iwldvm sends the FLUSH command to
the firmware. All the devices that use iwldvm have a
firmware that expects the _v3 version of this command,
besides 5150.
5150's latest available firmware still expects a _v2 version
of the FLUSH command.
This means that since the commit below, we had a mismatch for
this specific device only.
This mismatch led to the NMI below:

Loaded firmware version: 8.24.2.2
Start IWL Error Log Dump:
Status: 0x0000004C, count: 5
0x00000004 | NMI_INTERRUPT_WDG
0x000006F4 | uPc
0x000005BA | branchlink1
0x000006F8 | branchlink2
0x000008C2 | interruptlink1
0x00005B02 | interruptlink2
0x00000002 | data1
0x07030000 | data2
0x00000068 | line
0x3E80510C | beacon time
0x728A0EF4 | tsf low
0x0000002A | tsf hi
0x00000000 | time gp1
0x01BDC977 | time gp2
0x00000000 | time gp3
0x00010818 | uCode version
0x00000000 | hw version
0x00484704 | board version
0x00000002 | hcmd
0x2FF23080 | isr0
0x0103E000 | isr1
0x0000001A | isr2
0x1443FCC3 | isr3
0x11800112 | isr4
0x00000068 | isr_pref
0x000000D4 | wait_event
0x00000000 | l2p_control
0x00000007 | l2p_duration
0x00103040 | l2p_mhvalid
0x00000007 | l2p_addr_match
0x00000000 | lmpm_pmg_sel
0x00000000 | timestamp
0x00000200 | flow_handler

This was reported here:
https://bugzilla.kernel.org/show_bug.cgi?id=88961

Cc: <stable@vger.kernel.org>
Fixes: a0855054e5 ("iwlwifi: dvm: drop non VO frames when flushing")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-02 12:36:37 +02:00
Liad Kaufman 977654b157 iwlwifi: use correct fw file in 8000 b-step
In 8000 B-step the FW file has changed, but by the time we
know the HW step, the FW file is already requested.

This patch defaults 8000 family to B-step if no HW step is
detected in time. When it can it checks what HW step it
really is (in 8000 family) and if it isn't B-step, the FW
file is released and the A-step file is requested.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-02 12:35:37 +02:00
Oren Givon 773cb025f8 iwlwifi: fix 4165 series name
Fix the 4165 series name that was called 4265 by mistake.

Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-02 12:34:58 +02:00
Liad Kaufman 06d51e0d99 iwlwifi: pcie: add fh registers to dump data
Adds all FH registers between FH_MEM_UPPER_BOUND and
FH_MEM_LOWER_BOUND (which should be readable to the driver)
to the dump data when it is collected.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01 13:00:20 +02:00
Eran Harary dcab8ecd56 iwlwifi: mvm: support ucode load for family_8000 B0 only
The ucode load flow changed for B0 hardware step.
Change the code accordingly.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01 13:00:16 +02:00
David Spinadel a993749dc9 iwlwifi: mvm: remove a dangling line of documentation
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01 12:04:46 +02:00
Emmanuel Grumbach 655e5cf0d5 iwlwifi: pcie: claim ownership on the device after stop_device()
Not doing so would allow other possible users of the device
to take ownership and prevent normal WiFi operation.

This fixes the second part of:
https://bugzilla.kernel.org/show_bug.cgi?id=87191

Reviewed-by: Moshe Harel <moshe.harel@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01 12:04:45 +02:00
Emmanuel Grumbach e70af8e099 iwlwifi: don't load on 7265D with old NVM
7265D are new devices that should always have a new NVM
(at least 0x0c11). The firmware has issues with older
versions of the NVM which are not and will not be available
to the common mortals.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01 12:04:44 +02:00
Idan Kahlon a4e5df283c iwlwifi: mvm: support NVM file with header
Handle NVM file header. When NVM header detected, skip
the header and reading only the sections data.

Signed-off-by: Idan Kahlon <idanx.kahlon@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01 12:04:43 +02:00
Luciano Coelho 8ed4e659f3 iwlwifi: mvm: add channel information to the netdetect notifications
Add the channels on which there was a match for every match reported
by the firmware.  The firmware reports the channels as indices to the
array of channels that was passed in the scheduled scan request, so we
need to save the array when entering D3 to make sure it is available
when we resume.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01 12:04:42 +02:00
Luciano Coelho d9718da82f iwlwifi: mvm: add SSID match information for net-detect
Add SSID information to the net-detect indication to userspace.  Fetch
the matched profiles from the firmware in order to find the correct
SSIDs in the profiles that matched.

Since the net-detect information is stored in cfg80211, and in theory
it could change while we are waking up and reading the matched
profiles, we need to save it when we enter D3 so it is available
during resume.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01 12:04:42 +02:00
Eliad Peller 804d4c5a81 iwlwifi: pcie: refactor cmd_in_flight set/clear code
A following patche will use trans_pcie->cmd_in_flight
for reference accounting as well. get ready for it.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01 12:04:41 +02:00
Eliad Peller 160acc0e8d iwlwifi: mvm: add missing mvm ref debug print
IWL_MVM_REF_PROTECT_CSA is missing from the ref strings
used by debugfs.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01 12:04:40 +02:00
Emmanuel Grumbach 2c2bd58167 iwlwifi: mvm: BT Coex - change the MPLUT registers' value
This impacts the partition between BT and Wifi.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01 12:04:39 +02:00
Emmanuel Grumbach 94bbed728d iwlwifi: mvm: remove IWL_UCODE_TLV_API_CSA_FLOW
All the supported firmwares have this TLV flag set.

Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01 12:04:39 +02:00
Emmanuel Grumbach c8b06a9940 iwlwifi: mvm: remove IWL_UCODE_TLV_API_WOWLAN_CONFIG_TID
All the supported firmwares have this TLV flag set.

Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01 12:04:38 +02:00
Emmanuel Grumbach 2d2c0e9c81 iwlwifi: mvm: remove IWL_UCODE_TLV_CAPA_EXTENDED_BEACON
This TLV flag is set for all the supported firmwares.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01 12:04:37 +02:00
Emmanuel Grumbach 6d8e09ee77 iwlwifi: deprecate -8.ucode for 3160 / 7260 / 7265
This firmware is not supported anymore.
Stop loading this firmware - and remove the code that
handled older versions.

Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01 12:04:36 +02:00
Luciano Coelho b04998f3d5 iwlwifi: mvm: check and report if wake up was due to net detect
Query the firmware for scan offload matches when waking up in order to
report net detect as the reason for the wake up.

This requires a new command API to be implemented.  Additionally,
remove some net detect command entries that are not valid anymore.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01 12:04:35 +02:00
Johannes Berg a52703b202 iwlwifi: move firmware file format definitions to correct header
The firmware file-format is described in iwl-fw-file.h, while the
internal handling structures and functions are in iwl-fw.h.

Fix the separation between the files by moving file format
definitions to iwl-fw-file.h.

Also add a missing description for a kernel-doc member, and it's
not needed to include iwl-fw-file.h again from the code (thanks
to Liad Kaufman).

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01 12:04:32 +02:00
Emmanuel Grumbach e7331845df Merge remote-tracking branch 'iwlwifi-fixes/master' into iwlwifi-next
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

Conflicts:
	drivers/net/wireless/iwlwifi/iwl-fw.h
2014-11-25 07:53:57 +02:00
Emmanuel Grumbach dcad8e4299 iwlwifi: update the secure mem space and for the CPUs
Also update the timeout for the data verification.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:44 +02:00
Oren Givon 3c4e2998a4 iwlwifi: sdio: new SDIO card id for 4165 series
Add a new SDIO card id intended for the new 4165 series.

Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:44 +02:00
Eliad Peller 47abce8f2d iwlwifi: declare d0i3 support for IWL_DEVICE_8000
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:43 +02:00
Arik Nemtsov e198f5e76f iwlwifi: mvm: disconnect TDLS peers before channel switch
In case of channel switch, we need to teardown the TDLS peers.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:42 +02:00
Eyal Shapira 339b30864e iwlwifi: mvm: declare support for VHT BF info in radiotap
The driver knows whether an rx frame was beamformed and marks
it in the radiotap VHT flags. However it should also declare
that it knows to extract this info otherwise this gets discarded
by sniffers like Wireshark.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:41 +02:00
Chaya Rachel Ivgy 30269c125b iwlwifi: mvm: add support to MFUART loading notification
Add support to MFUART loading notification (print notification
data with IWL_DEBUG_INFO)

Signed-off-by: Chaya Rachel Ivgy <chaya.rachel.ivgi@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:41 +02:00
Eliad Peller 465921c841 iwlwifi: mvm: call iwl_trans_suspend/resume
call the appropriate iwl_trans_suspend/resume ops
on iwl_mvm_suspend/resume calls.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:40 +02:00
Eliad Peller 8e551e503b iwlwifi: trans: add suspend/resume ops
Add suspend/resume trans ops that will be called from
mac80211's suspend/resume ops.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:39 +02:00
Luciano Coelho 2021a89d7b iwlwifi: mvm: treat netdetect wake up separately
When the device wakes up due to netdetect, we need to query different
things from the firmware than when it wakes up with a normal WoWLAN.
To make this easier, separate the netdetect wake up handling from the
rest.  For now, we don't send netdetect as a wake up reason, treating
it as a non-wireless wake up.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:38 +02:00
Luciano Coelho ec12f457d6 iwlwifi: mvm: refactor iwl_mvm_query_wakeup_reasons()
Refactor the iwl_mvm_query_wakeup_reasons() function to split the part
that gets the firmware status from the part that sets up the WoWLAN
status.  This will allow netdetect to reuse the code.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:38 +02:00
Luciano Coelho 3acc952b03 iwlwifi: mvm: refactor wowlan and netdetect configuration when suspending
We need to send a WOWLAN_CONFIGURATION command also for netdetect and
configure the rfkill release trigger if needed.  To do so, refactor
the code that configures wowlan and netdetect when suspending and send
the WOWLAN_CONFIGURATION command also for net_detect.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:37 +02:00
Luciano Coelho c55385f55c iwlwifi: mvm: add support for net detect
Add the net detect WoWLAN flag to indicate support and use the
nd_config from the WoWLAN configuration to start net detect, if it is
set.  The WoWLAN configuration takes precedence over the debugfs
configuration.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:36 +02:00
Luciano Coelho 686e7fe1c4 iwlwifi: mvm: protect session during CSA
When another vif is also running during a channel switch, we need to
use a session protection when we move to the new channel, so that we
don't miss the beacons.  Without this, sometimes the other vif
repeatedly gets time exactly when we should be hearing the beacons,
preventing channel switch from completing.  Adding a session
protection that lasts from the moment the channel changes until 2
TBTTs later, ensures that we will hear the beacons on the destination
channel.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
2014-11-24 08:30:35 +02:00
Luciano Coelho 0c6505c6ed iwlwifi: mvm: clear TE data if CSA time event fails to start
If setting the CSA time event fails, we must clear the TE data,
otherwise we'll try to remove it when, for instance, a disconnection
occurs, causing a SYSASSERT.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
2014-11-24 08:30:35 +02:00
Luciano Coelho c6e0a3e044 iwlwifi: mvm: disable beacon filtering during CSA
After a channel switch, transmission on the new channel is only
started once we see a beacon on it.  Thus, beacon filtering needs to
be disabled during channel switch so that mac80211 receives this
beacon and finishes the process.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
2014-11-24 08:30:34 +02:00
Luciano Coelho 622e3f9b71 iwlwifi: mvm: add a channel_switch op to bypass mac80211 timer
We need to call ieee80211_chswitch_done() ourselves just when the
absence TE started, so we perform the actual context switch early
enough.  To do so, add a dummy channel_switch op, which will cause
mac80211 to skip the countdown timer and allow us to call
ieee80211_chswitch_done() to complete the operation.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
2014-11-24 08:30:33 +02:00
Luciano Coelho a57c688d34 iwlwifi: mvm: finalize on post_switch instead of unassign
Now that mac80211 waits for the first beacon on the new channel before
calling post_channel_switch, the reconfiguration of the firmware
should be done in the post_channel_switch operation instead of when
assigning the vif to the new context.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
2014-11-24 08:30:32 +02:00
Luciano Coelho 4500e13376 iwlwifi: mvm: schedule CSA time event a bit before beacon 1
Instead of using a hardcoded number of TUs before beacon 0 as the time
to start the absence and actual channel switch, calculate it in
relation to the beacon interval.  We use 10 TUs + beacon interval
before beacon 0 to target a bit before beacon 1.  This gives us enough
time to switch to the new channel before the AP/GO switches.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
2014-11-24 08:30:32 +02:00
Luciano Coelho dc88b4baa9 iwlwifi: mvm: add CSA absent time event for clients
Add an absent time event when pre_channel_switch is called and use the
time event started indication to set the disable_tx bit instead of
doing it in unassign_vif().  This is done so that the firmware queues
are stopped before the actual switch takes place to avoid losing
packets while the AP/GO is performing its actual switch.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
2014-11-24 08:30:31 +02:00
Luciano Coelho 4741dd049a iwlwifi: mvm: use switching_chanctx argument instead of csa_active
Now that all CSA flows are using the switch_vif_chanctx op, we can
rely on the switching_chanctx boolean that is passed to the
__iwl_mvm_assign_vif_chanctx() and __iwl_mvm_unassign_vif_chanctx()
functions to decide whether the context switch flows need to be
executed.  In this way we make the chanctx switch flow more generic,
without having to rely on the csa_active flag being set.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
2014-11-24 08:30:30 +02:00
Luciano Coelho f6c34820d3 iwlwifi: mvm: disable PS during channel switch
Disable PS when pre_channel_switch is called and add the
post_channel_switch operation to re-enable PS when the channel switch
is completed.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
2014-11-24 08:30:29 +02:00
Andrei Otcheretianski 7ef0aab66b iwlwifi: mvm: Handle failed beacon transmissions during CSA
The spec requires to decrement the CSA counters based on TBTT,
regardless if the beacon was actually transmitted. Previously, the fw
would send beacon notifications only for successfully transmitted
beacons. This behavior resulted in inaccurate CSA countdown. In order
to address this issue, the fw was changed to send beacon
notifications also for not transmitted beacons. Such notifications
have TX_STATUS_INTERNAL_ABORT (0x92).
Don't start the CSA countdown before first successfully transmitted
beacon, in order to guarantee that the CSA is announced for a
required period.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
2014-11-24 08:30:29 +02:00
Luciano Coelho 6fd1fb63ab iwlwifi: mvm: return the actual error code when switch_vif_chanctx fails
We have code to recover and go back to the original channel context if
something fails in the middle of switch_vif_chanctx, but we return the
error code of the recover calls instead of the original code, so if
the recovery succeeds, we will return 0 (success).  Fix this by not
assigning the return value of the recovery calls to ret.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
2014-11-24 08:30:28 +02:00
Luciano Coelho 48a256e8ae iwlwifi: mvm: add support for CHANCTX_SWMODE_REASSIGN_VIF
Add support to reassign vif in switch_vif_chanctx.  This is similar to
the existing CHANCTX_SWMODE_SWAP_CONTEXTS mode, but doesn't delete the
old context nor creates a new one, doing to switch between two
existing contexts.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
2014-11-24 08:30:27 +02:00
Luciano Coelho 50cc9574d6 iwlwifi: mvm: refactor iwl_mvm_switch_vif_chanctx to support other modes
Currently we only support the CHANCTX_SWMODE_SWAP_CONTEXTS mode, but
we need to support other modes as well.  Spin a new function off in
order to make it easier to support other modes.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
2014-11-24 08:30:26 +02:00
Luciano Coelho 6b20d77437 iwlwifi: mvm: only save csa_vif in AP/GO mode
We only need the csa_vif in AP/GO modes, and assigning for other
interfaces may cause problems, because csa_vif is never cleared.  To
prevent this, only assign the value if the iftype is
NL80211_IFTYPE_AP.  Use a switch to do this, even though, for now,
only the AP interface type is handled, because soon other interface
types will be added as well.

Additionally, convert the WARN() in the error case when a
channel-switch is already running to WARN_ONCE().

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
2014-11-24 08:30:26 +02:00
Luciano Coelho f028905c20 iwlwifi: mvm: use new pre_channel_switch op instead of channel_switch_beacon
A new callback has been added to prepare the device for a channel
switch.  Use the new callback instead of the old channel_switch_beacon
operation.

This makes it possible to remove the channel_switch_beacon operation
from mac80211.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
2014-11-24 08:30:25 +02:00
Arik Nemtsov 1d3c3f63f7 iwlwifi: mvm: implement mac80211 TDLS channel-switch APIs
Maintain a TDLS channel-switch state and update it according to
notifications from FW and timeouts. Explicitly check all state
transitions are valid.
When switching is initiated by mac80211, use a delayed work to
periodically reschedule it from iwlwifi.
Give the FW mac80211 generated TDLS channel-switch request/response
templates. It will change appropriate values (switch timings) and Tx
them at appropriate times.

Enable the channel switch wiphy capability bit when the FW supports it.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:24 +02:00
Liad Kaufman 9c126cd6e0 iwlwifi: mvm: block TID when using TDLS
Block TID 4 (VI) on a vif when using TDLS. This TID will be used by FW
for TDLS channel-switch requests and PTI requests.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:23 +02:00
Arik Nemtsov a0f6bf2a5b iwlwifi: mvm: use private TFD queues for TDLS stations
When adding a TDLS station, allocate 4 new queues for it. Configure them
to FW and enable them. On station removal, drain the queues if needed
and disable them when empty.

Make sure to flush all packets in the private queues of TDLS stations in
the mac80211 flush() callback.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:23 +02:00
Arik Nemtsov cbd2ae2da6 iwlwifi: mvm: disconnect TDLS peers on reconfig
When TDLS peers are present the FW will send packets on a dedicated
TID vs. the peer when performing TDLS channel-switches. The driver
configures the TID on connection to the peer and the FW is responsible
for maintaining the state of QoS seqno and PN/IV for encryption.

If the FW asserts, the driver cannot correctly reconfigure the starting
seqno/PN to the reloaded FW, thus forcing us to reconnect the peer.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:22 +02:00
Arik Nemtsov a74346d75d iwlwifi: mvm: allow private per-STA TFD queues
TDLS stations will have private queues, so consider them as well when
allocating a new one. Consolidate the HW-queue iterating code into
a single exported function, to be used by the TDLS code in the future.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:21 +02:00
Arik Nemtsov 307e47235a iwlwifi: mvm: configure TDLS peers to FW
Send a dedicated TDLS_CONFIG command when a TDLS peer joins/leaves. The
fields for the command are mostly place-holders, as most of the FW
functionality is not implemented. In the future the dedicated FW TID
will be used for channel-switching and buffer-sta functionality.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:20 +02:00
Arik Nemtsov 77c5d7eff7 iwlwifi: mvm: add TDLS channel switch FW APIs
Add a channel-switch command and a switch-start notification. Also add a
FW TLV bit indicating TDLS channel switching support.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:19 +02:00
Arik Nemtsov d8f1c51570 iwlwifi: mvm: declare TDLS support
The driver/FW combination now support TDLS.
Check the FW support with the TLV bit.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:19 +02:00
Johannes Berg 3771a89022 iwlwifi: mvm: pull SNAP header into skb->head
When we pre-populate the skb->head for the stack, we only pull
in the 802.11 header including crypto (assuming the packet isn't
short enough to be in there completely.) This is fine, but in
ieee80211_data_to_8023() we later unconditionally pull 8 more
bytes for the SNAP header and ethertype field (except for mesh
or 4-addr, where it's even more, but we don't care as much about
them).

Avoid the additional later pull by pulling in those 8 bytes here.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: IdoX Yariv <ido@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:18 +02:00
Johannes Berg eb96ccb138 iwlwifi: mvm: pull crypto header into skb->head
When we pre-populate the skb->head for the stack, we only pull
in the 802.11 header (assuming the packet isn't short enough to
be in there completely.) This is fine, but in many cases we'll
pull in the crypto headers pretty much immediately afterwards,
so to avoid that pull in the crypto header early.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: IdoX Yariv <ido@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:17 +02:00
Johannes Berg d0963b5d31 iwlwifi: build mac80211 rx_status in place
Instead of building the rx_status on the stack and then
copying it to the skb, allocate the skb a bit earlier
and then build the rx_status in place.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: IdoX Yariv <ido@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:16 +02:00
Johannes Berg ba3943b094 iwlwifi: mvm: add WEP RX hardware offload support
In the original driver, we decided to not implement WEP RX hardware
offload because of a quirk with the firmware API - it allows setting
global WEP keys that then get used for all virtual interfaces, which
is clearly wrong if more than one exists, and it allows setting per-
station keys but then separates multicast and unicast keys.

In order to implement WEP RX hardware offload, work around these
limitations by uploading each WEP key twice, once as multicast and
once as unicast, but point them both to the same key slot (offset)
and use the same key material so the slot overwrite on the second
upload doesn't actually change anything. Upon removal, also remove
the key twice so the station no longer references it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:16 +02:00
Johannes Berg 2f6319d1cf iwlwifi: mvm: refactor key add/remove functions
Refactor the key add/remove functions to be able to reuse parts
of them later for RX WEP keys, which need to be uploaded twice.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:15 +02:00
Matti Gottlieb bf5da87f60 iwlwifi: mvm: add remove flow for AUX ROC time events
Add a flow that handles the requests to cancel the roc time event,
that has been triggered via the aux framework.

The roc for bss is different than the roc for p2p devices, and  is done
via the aux framework using the aux queue, thus requires a different flow
to cancel the time event.

Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:14 +02:00
David Spinadel 2992a324e3 iwlwifi: mvm: remove warning on unknown scan complete
Remove warning on scan complete with unknown ID, since this
scan could be already cleared in abort flow.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:13 +02:00
Johannes Berg c8660dd5e9 iwlwifi: mvm: use unsigned for ssid_bitmap
The ssid_bitmap should be unsigned, though it doesn't matter
much as the high bits aren't used.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:13 +02:00
Johannes Berg 3fd0d3c170 iwlwifi: pcie: support 7265-D devices
Identify 7265-D devices using the hardware revision (they have the
same PCI IDs as 7265) and change the configuration for them taking
the differences (currently only the firmware image) into account.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24 08:30:12 +02:00
Luciano Coelho 5ac6c72e59 iwlwifi: mvm: check TLV flag before trying to use hotspot firmware commands
Older firmwares do not provide support for the HOT_SPOT_CMD command.
Check for the appropriate TLV flag that declares hotspot support in
the firmware to prevent a firmware assertion failure that can be
triggered from the userspace,

Cc: stable@vger.kernel.org [3.17+]
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23 21:50:57 +02:00
Arik Nemtsov fe45773b5b iwlwifi: pcie: support loading FW with extended mem range
Toggle the LMPM_CHICK register when writing chunks into the FW's extended
SRAM. This tells the FW to put the chunk into a different memory space.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23 20:11:33 +02:00
Eliad Peller fb68e1a466 iwlwifi: mvm: disable beacon filtering escape timer
There is no reason to pass every 50th beacon if
nothing was changed.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23 20:09:49 +02:00
Luciano Coelho cc4c1ab5d2 iwlwifi: mvm: make nd_ies part of the mvm struct
Instead of allocating nd_ies separately, make it part of the iwl_mvm
structure so it's easier to handle its lifetime.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23 20:08:30 +02:00
Emmanuel Grumbach 522713c81e iwlwifi: pcie: properly reset the device
We were toggling the wrong bit when we reset the device,
fix that. Moreover, since the reset can take time, we need
to wait before we set the rfkill interrupt. Not doing so
can be racy since the driver is enabling the rfkill
interrupt while the device is resetting which will clear
all the registers including the CSR_INT_MASK.
This can basically lead to a situation where we don't
enable the rfkill interrupt. If that happens, the user will
not be able to re-enable the device when de-asserting
rfkill.

This scenario happened to the submitter of:
https://bugzilla.kernel.org/show_bug.cgi?id=87191

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23 20:07:37 +02:00
Johannes Berg effd05ac47 iwlwifi: mvm: support random MAC address for scanning
For background and scheduled scan, using the new unified scan API,
support random MAC address scanning.

Unfortunately, the firmware right now doesn't support randomising
itself, so for now do it on the host - we'll change this once the
firmware supports randomising the address for each scan iteration
using the address/mask.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23 20:07:15 +02:00
David Spinadel b975e55adc iwlwifi: mvm: go to umac scan even if lmac tlv bit is on
LMAC TLV bit may be on in FWs that support UMAC scan; so check
for UMAC TLV bit first.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23 20:06:13 +02:00
Eyal Shapira d6bda6671f iwlwifi: mvm: rs: consider a missing BA as a single tx failure
The fw now indicates missing BA with ampdu_ack_len=0.

This will make the whole aggregation being marked
as failed, although it's most likely not the case (and
only the BA itself was failed).

Consider this case as a single tx failure.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23 20:05:32 +02:00
Emmanuel Grumbach 123f515635 iwlwifi: mvm: BT Coex - add support for TTC / RRC
The TTC and RRC features are supported by the newer
firmwares. It allows to reach better overall WiFi and BT
performance. When the RRC is enabled, we don't need to force
the AP to send SISO frames, but it can keeps sending MIMO
frames.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23 20:05:06 +02:00
David Spinadel d24962214d iwlwifi: mvm: implement UMAC scan API
This API uses second CPU scan commands, and can support multiple
simultaneous scans.

Adding the new API, and adding new mechanisms to deal with up to
8 simultaneous scans instead of the old scan status.

New scan API requires scan configuration for default scan parameters,
adding it in _up flow. Also updating scan configuration after updating
valid scan antennas via debugfs.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23 20:02:43 +02:00
Avri Altman 5387b348b7 iwlwifi: mvm: Fix the keep_alive calculation
The driver must set the keep alive period regardless of power
management state. The keep alive period must be greater or equal to
both the NIC's maximum sleep period, and the listen interval.
However, we were confusing time units (TU) and msec, so fix that.

Signed-off-by: Avri Altman <avri.altman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23 19:59:19 +02:00
Avri Altman 886ca9f5dd iwlwifi: mvm: New skip over dtim policy
Our firmware scheduler suffers from false wake-up on 500 time units.
that is if the dtim interval exceeds 500 time units, the fw wakes up,
understands that the next wake-up event is still ahead, and if this event
is more than 10msec in the future - goes back to sleep, otherwise - stay
awake.  For example, say that the beacon interval is 101 and the dtim
period is 5, the dtim interval is 101 x 5 = 505, and we will stay awake
for those extra 5msec.
So on the one hand the dtim interval should be congruent to the beacon
interval times the dtim period, and on the other should minimize
the false wake-ups event.
This change applies only to D0/D3 power modes.

Signed-off-by: Avri Altman <avri.altman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23 19:59:19 +02:00
Eliad Peller 088070a2f6 iwlwifi: mvm: move deferred d0i3 exit to resume_complete op
The deferred d0i3 exit is currently implemented in the
resume op, which is called when mac80211 starts its
resume process.

However, mac80211 still doesn't handle frames at this stage,
which results in frames being dropped.

Move the deferred d0i3 handling to the reconfig_complete
callback, in order to make sure mac80211 is fully available
at this point.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23 19:57:30 +02:00
Emmanuel Grumbach 9b5452fd77 iwlwifi: mvm: add support for WMM Access Control
After the corresponding mac80211 patch, we can now report the airtime
used for each transmitted packet and mac80211 will be able to implement
WMM-AC with that information.

To support WMM-AC in the driver then, report the airtime and advertise
support.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23 19:57:30 +02:00
Eran Harary c064ddf318 iwlwifi: change max HT and VHT A-MPDU exponent
Add two new parameters to iwl_cfg:
max_ht_ampdu_exponent and max_vht_ampdu_exponent.
These parameters, if set, will set new values to the maximum of
HT and VHT A-MPDU exponent for the A-MPDU length exponent.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23 19:57:30 +02:00
Andrei Otcheretianski 66dc527296 iwlwifi: mvm: Insert DS Parameter Set placeholder in probes
Since it's too complicated for the fw to insert a DS Parameter Set
element in the middle of the frame, it was decided that it should be
done by the host. The fw will only parse the frame and update the
current channel field.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23 19:57:29 +02:00
Emmanuel Grumbach aeb8f93208 Merge remote-tracking branch 'wireless-next/master' into iwlwifi-next 2014-11-23 19:56:35 +02:00
John W. Linville ab1f5a532c Merge commit '4e6ce4dc7ce71d0886908d55129d5d6482a27ff9' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2014-11-19 15:38:48 -05:00
Eliad Peller caf1578aef iwlwifi: mvm: wake up d0i3_exit_waitq when aborting d0i3
When aborting d0i3 due to taken refs, other threads might
already wait on d0i3_exit_waitq for IWL_MVM_STATUS_IN_D0I3
to get cleared (it's somewhat likely, as synchronize_rcu()
might take a while), so make sure to wake them up.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-11 17:15:10 +02:00
Emmanuel Grumbach 6a08f5144c iwlwifi: pcie: newer platform needs a OS alive indication
This is fully backward compatible with older platforms.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-11 17:15:10 +02:00
Emmanuel Grumbach 01e58a281e iwlwifi: pcie: introduce delay when waking up the device
In some rare cases, the firmware can put the device to
sleep after the driver requested the access. This is
because the access request can take a short time to be
propagated to the firmware.

If that happens, the driver may think that it has access
since the firmware hasn't put the device to sleep yet, but
right after the driver's check, the firmware might put the
device to sleep.

Warn when this happens by allowing the firmware to finish
the "put the device sleep" flow so that the driver will
not get access to the device. This will make the issue
visible.

This still doesn't fix the race, but at least it makes
it more visible.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-11 17:15:09 +02:00
Luciano Coelho ea9af24d03 iwlwifi: mvm: handle unsolicited DTS_MEASUREMENT_NOTIFICATIONs
Currently, the firmware only sends temperature notificaitions inside
RX statistics notifications, which are tied to beacon filtering.  This
is a problem because beacon filtering is not used with vifs that don't
receive beacons (e.g. P2P GO and AP), so the driver doesn't receive
temperature notifications in those cases.  To solve that, the firmware
will be changed so that it sends DTS_MEASUREMENT_NOTIFICATIONs,
independently from the beacon filtering flows.

To support that, the driver needs to also handle unsolicited
DTS_MEASUREMENT_NOTIFICATIONs, that are not triggered by
DTS_TRIGGER_CMD_FLAGS_TEMP requests.

This change is backwards compatible and will simply not be used with
firmware versions that do not send the notifications.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-11 17:15:08 +02:00
Luciano Coelho fd1f75506d iwlwifi: mvm: refactor temperature notification handling
Refactor the temperature handling code so that it is easier to reuse
it with other notification flows.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-11 17:15:07 +02:00
Johannes Berg 58629d9d6a iwlwifi: mvm: don't capture firmware coredump for D3->D0 reconfig
The code to capture firmware errors works during the reconfiguration
phase after an error. As the D3->D0 transition uses the same flow to
get the D0 image reconfigured, this triggered and caused a firmware
coredump to be collected. This in turn, if it isn't picked up by
userspace, can cause module unloading to fail, which is how the bug
was detected.

To fix this issue, introduce a new status flag (D3_RECONFIG) and use
it to detect that during reconfiguration no coredump should be taken
and reported.

Reported-by: Avi Kraif <avix.kraif@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-11 17:15:07 +02:00
Emmanuel Grumbach 219fb66b49 iwlwifi: mvm: rs - don't use the shared antenna when BT load is high
When we need only one antenna, we should refrain from using
the antenna that is shared with BT if BT load is high.
Fix this.

Reviewed-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-11 17:15:06 +02:00
Eyal Shapira 26a2cc016f iwlwifi: mvm: rs: fix getting stuck in a test window
When Tx STBC is being used and RS switches to a search column
using the alternate antenna from the current one there is a
problem with using rs_rate_match to figure out which table
is the active and which one is the search one. The root cause
is because in STBC the antenna mask in the ucode rate is set
to ANT_AB and in this specific scenario it matches both the
active and search table (e.g. SISO_ANT_A and SISO_ANT_B).
This leads to tx stats being updated in the wrong table and later
on to getting stuck in a test window and not moving on to other
columns. If this happens during the initial search cycle we
never end it and therefore never enable aggregation which leads
naturally to severe througput degradation.
Fix it by deducing which table is which by knowing whether we're
in a search or not like it's being done in rs_rate_scale_perform

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-11 17:15:05 +02:00
Eliad Peller f4cf8680df iwlwifi: mvm/trans: abort d0i3_enter in case of held ref
Other contexts might call iwl_mvm_ref_sync() right before
we set IWL_MVM_STATUS_IN_D0I3, and then assume the fw/bus
is not in d0i3 state.

However, since we currently don't check for held references
in the d0i3_enter flow, we might enter d0i3 although there
is an active reference.

Solve it by aborting the d0i3 enter flow if there is an
active reference. Since users are assumed to use
iwl_mvm_ref_sync, which takes a ref before checking the
flag, we don't need further locking.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-11 17:15:04 +02:00
Eyal Shapira 1507fb757a iwlwifi: mvm: rs: fix a WARNING in case of STBC and VHT
This was taken care of in case we're doing STBC with HT
but not when working with VHT.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-11 17:15:04 +02:00
Liad Kaufman b93b1fe3b5 iwlwifi: mvm: fix init_dbg flow to work as expected
Even if running the driver with param init_dbg=1 - on INIT
image error - iwl_trans_stop_device() was still called. This
patch fixes that and calls iwl_trans_stop_device() on INIT
image failure only if init_dbg=0.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-11 17:15:03 +02:00
Liad Kaufman 87dd634ae7 iwlwifi: pcie: fix prph dump length
The length counting previously done had an error in it, causing
the length down the data dumping function to be shorter than it
should be, causing the end of the data to get truncated off and
lost.

Cc: <stable@vger.kernel.org> [3.17+]
Fixes: 67c65f2cf7 ("iwlwifi: dump periphery registers to fw-error-dump")
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-11 07:24:57 +02:00
Emmanuel Grumbach 9b520d8495 iwlwifi: mvm: abort scan upon RFKILL
This code existed but not for all the different FW APIs
we support.
Fix this.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-11 07:18:57 +02:00
Johannes Berg efad21d2a2 iwlwifi: mvm: rs: don't use shadowing variable
The variable 'tid' is already defined in this function, so use
just 't' for the new one. As we return from the function just
overwriting 'tid' would be acceptable, but less obvious to the
reader.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-11 07:12:25 +02:00
Arik Nemtsov 6ce73e6569 iwlwifi: mvm: expose some static APIs for use by TDLS code
Mostly functions related to building Tx-commands for sending to FW.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-11 07:12:01 +02:00
Johannes Berg 7992074960 iwlwifi: mvm: use correct type for firmware status
The status variable should be unsigned as the function call
requires a u32 not int pointer, fix that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-11 07:10:26 +02:00
John W. Linville bf515fb11a This relatively large batch of changes is comprised of the
following:
  * large mac80211-hwsim changes from Ben, Jukka and a bit myself
  * OCB/WAVE/11p support from Rostislav on behalf of the Czech Technical
    University in Prague and Volkswagen Group Research
  * minstrel VHT work from Karl
  * more CSA work from Luca
  * WMM admission control support in mac80211 (myself)
  * various smaller fixes, spelling corrections, and minor API additions
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Merge tag 'mac80211-next-for-john-2014-11-04' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg <johannes@sipsolutions.net> says:

"This relatively large batch of changes is comprised of the
following:
 * large mac80211-hwsim changes from Ben, Jukka and a bit myself
 * OCB/WAVE/11p support from Rostislav on behalf of the Czech Technical
   University in Prague and Volkswagen Group Research
 * minstrel VHT work from Karl
 * more CSA work from Luca
 * WMM admission control support in mac80211 (myself)
 * various smaller fixes, spelling corrections, and minor API additions"

Conflicts:
	drivers/net/wireless/ath/wil6210/cfg80211.c

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-04 16:18:12 -05:00
Eliad Peller cf2c92d840 mac80211: replace restart_complete() with reconfig_complete()
Drivers might want to know also when mac80211 has
completed reconfiguring after resume (e.g. in order
to know when frames can be passed to mac80211).

Rename restart_complete() to a more-generic reconfig_complete(),
and add a new enum to indicate the reconfiguration type.

Update the current users with the new prototype.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-04 13:49:00 +01:00
Eyal Shapira 82e8aea03f iwlwifi: mvm: handle error from iwl_trans_update_sf
iwl_trans_update_sf can fail and this wasn't handled.
Fix this.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-03 20:09:21 +02:00
Emmanuel Grumbach 31b8b343e0 iwlwifi: fix RFkill while calibrating
If the RFkill interrupt fires while we calibrate, it would
make the firmware fail and the driver wasn't able to recover.
Change the flow so that the driver will kill the firmware
in that case.

Since we have now two flows that are calling
trans_stop_device (the RFkill interrupt and the
op_mode_mvm_start function) - we need to better sync this.
Use the STATUS_DEVICE_ENABLED in the pcie transport in an
atomic way to achieve this.

This fixes: https://bugzilla.kernel.org/show_bug.cgi?id=86231

CC: <stable@vger.kernel.org> [3.10+]
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-03 15:29:17 +02:00
Emmanuel Grumbach 3e4b1b4a91 iwlwfifi: fix WANT_DEV_COREDUMP selection in Kconfig
Fix my mistake while sending Johannes's

commit aadede6e9f
Author: Johannes Berg <johannes.berg@intel.com>
Date:   Thu Oct 9 17:01:36 2014 +0200

    iwlwifi: mvm: port to devcoredump framework

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-31 13:10:32 +02:00
Eliad Peller 4ff78181f4 iwlwifi: mvm: unref SCAN ref on scan completion
The scan reference wasn't released in case of offloaded scan,
causing the refcount to go wrong and prevent the device
from going into d0i3.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 14:13:47 +02:00
Eyal Shapira d8bafeaf46 iwlwifi: mvm: rs: add Tx STBC support
STBC is enabled on HT/VHT SISO rates in case we don't care
about power consumption and it won't hurt BT.
This is done only in case the peer and our chip support STBC
of course.
While at it fixed a bug which was causing bw and ldpc
flags to be set incorrectly in the rate scale table in case
we are switching to a legacy Tx column. This had no real impact.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 14:13:46 +02:00
David Spinadel 1e2ebe0e40 iwlwifi: mvm: fix scan condition iterator
Scan condition iterator assumes that an interface is associated if
phy_ctxt is assigned, but this isn't the sutuation in P2P device.
OTOH P2P device is never associated so we can simply ignore it.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 14:13:46 +02:00
Johannes Berg aadede6e9f iwlwifi: mvm: port to devcoredump framework
iwlwifi features a debug mechanism that allows to dump
binary data which is helpful to debug the firmware.
Until now, this data was made available for the userspace
through debugfs. For this exact purpose, devcoredump was
created. Move to the new infrastructure.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 14:13:43 +02:00
Eyal Shapira b260362ab7 iwlwifi: enable STBC support for 8000 chips
These chips support STBC in both Tx and Rx.
Given that we've added STBC Tx support enable it.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 13:07:35 +02:00
Emmanuel Grumbach 7b358f0652 iwlwifi: mvm: initialize the cur_ucode upon boot
mvm->cur_ucode wasn't set before we actually load the
firmware. This caused issues when we boot in RFKILL since
we get an RFKILL interrupt upon boot even before we load
any firmware.
This leads to issues since iwl_mvm_set_hw_rfkill_state
(the RFKILL interrupts handler in mvm) relies on this
variable.

Fix this.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 13:03:46 +02:00
Joe Perches 50f6635afe iwlwifi: dvm: Fix probable mask then right shift defect
Precedence of & and >> is not the same and is not left to right.
shift has higher precedence and should be done after the mask.

Add parentheses around the mask.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:53:07 +02:00
Luciano Coelho 7ae83d0082 iwlwifi: mvm: remove unnecessary includes in tt.c
We used to need to include some headers in order to read the registers
and do all the calculations by ourselves, but this is not done anymore
(i.e. we let the firmware do this for us), so we don't need to include
those headers anymore.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:53:07 +02:00
Johannes Berg 480acbcee4 iwlwifi: mvm: flush queues without mutex held
For WMM-AC we may have to be changing QoS parameters while the
queues are being flushed. This is not relevant in the "drop"
case, but matters when we wait for the device to finish the
transmissions.

To allow this, do the actual waiting without holding the mutex.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:52:28 +02:00
Johannes Berg f85e9d19d4 iwlwifi: mvm: improve MCS rate warning
The warning gives no information about the frame, and presents
the flags so that one might think they're the frame. Clarify
and add more information.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:52:28 +02:00
Emmanuel Grumbach ee00aed175 iwlwifi: mvm: BT Coex - make the multiprio lut a constant
This makes it easier to tune the values during the testing.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:52:27 +02:00
Arik Nemtsov d92b732e35 iwlwifi: mvm: remove mvm argument from get_queues_mask
It is unused and won't be available in some future invocations of the
function.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:52:26 +02:00
Max Stepanov 3b8983b17c iwlwifi: mvm: add MVM_FW_BCAST_FILTER_PASS_ALL option
The MVM_FW_BCAST_FILTER_PASS_ALL option defined in iwl-dbg-cfg.ini
configuration file allows to enable/disable FW broadcast filtering.

If MVM_FW_BCAST_FILTER_PASS_ALL is not defined in iwl-dbg-cfg.ini or
its value is 0, the mvm broadcast filtering is enabled.

Setting MVM_FW_BCAST_FILTER_PASS_ALL=1 in iwl-dbg-cfg.ini blocks sending
of BCAST_FILTER_CMD to FW.

Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:52:26 +02:00
Emmanuel Grumbach f3b2098d98 iwlwifi: mvm: BT Coex - move BT_ANTENNA_COUPLING_THRESHOLD to constants
This is were it really needs to be.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:52:25 +02:00
Eran Harary c7583d7dd6 iwlwifi: always run the secured flow for family 8000
In the new format the "CSS section" has the same TLV type
as the "mem section". So we need to run the secured flow
for all the 8000 products.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:52:24 +02:00
Emmanuel Grumbach a3ead6568c iwlwifi: pcie: fix recovery from ARC reset in WoWLAN
When the ARC is reset when we exit from Sx in case we had
WoWLAN running, we can't access the prph before we reset
the NIC.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:52:23 +02:00
Emmanuel Grumbach 40a76905ad iwlwifi: pcie: warn if extern fw_debug buffer failed
Otherwise we have no way to know that the buffer hasn't been
allocated.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:52:23 +02:00
Gregory Greenman 77d96730db iwlwifi: allow to restrict Tx aggregation size per-device
A few slave bus devices show better performance when we
reduce the size of the Tx A-MPDU.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:49:13 +02:00
Luciano Coelho 7f549e2c45 iwlwifi: mvm: change the iwl_mvm_d3_iface_iterator into a generic function
Getting the BSS station vif is something that may be needed by other
parts of the code.  So, instead of having an iterator specifically for
d3, change it into a generic one in utils.c.  Additionally, add a
iwl_mvm_get_bss_vif() function to make it easier to retrieving it.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:49:13 +02:00
Luciano Coelho 3c2f3b20e4 iwlwifi: mvm: add debugfs entry to configure netdetect SSIDs
Before we get all the chain (ie. mac80211, cfg80211, nl80211 and
userspace) changed to support net-detect, we can use this debugfs
entry for easy testing and as a proof of concept.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:49:13 +02:00
Luciano Coelho b141c23581 iwlwifi: mvm: spin off a function to start scan offload
The net-detect feature will require a scan offload to be started in
the same way it is done now for scheduled scan.  Spin a new function
off of the sched_scan_start op code for reuse.  Additionally,
restructure the function a bit for more readability.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:49:12 +02:00
Luciano Coelho 1e4d19ca6e iwlwifi: mvm: move the check if associated outside of the iterator for wowlan
Instead of checking if we are associated when suspending with wowlan
enabled in the interface iterator, allow it to return an unassociated
vif and move the check to the main suspend function.  This will be
needed by netdetect, since it should also work when we are not
associated but the vif is active.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:49:12 +02:00
Luciano Coelho 671b58202e iwlwifi: mvm: split wowlan handling out of the main suspend function
Take the WoWLAN handling code out of the main suspend function,
dividing it into three parts: get_config (which is used before the
firmware is switched), switch_to_d3 (which handles the rebooting of
the hardware with the D3 firmware) and config (which configures the D3
firmware for WoWLAN operation).  This is necessary to prepare for the
net-detect implementation, which will use only the switch_to_d3 part
of this flow.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:49:12 +02:00
Luciano Coelho 31ca09dd6b iwlwifi: mvm: hold the rtnl when resuming from a d3 test
We use ieee80211_iter_keys() which requires the rtnl to be held.  If
we don't lock the rtnl, like we do when we suspend during a d3 test,
we get the following splat:

 RTNL: assertion failed at net/mac80211/key.c (566)
 CPU: 1 PID: 26529 Comm: cat Tainted: G        W  O 3.10.29-dev #1
 Hardware name: Dell Inc. Latitude E6430/0CPWYR, BIOS A09 12/13/2012
  e7b15008 e7b15008 e68adc1c c168aa62 e68adc54 f91f20b6 f923700c f9236fd8
  00000236 00000000 ece23874 00000000 f94941e0 00000000 e43b8e48 e7b15008
  00000000 e8b69e78 e68adcc0 f9493ab9 e68adc68 00000000 e43b8e48 e7b15008
 Call Trace:
  [<c168aa62>] dump_stack+0x16/0x18
  [<f91f20b6>] ieee80211_iter_keys+0x166/0x170 [mac80211]
  [<f94941e0>] ? iwl_mvm_query_wakeup_reasons+0x5f0/0x5f0 [iwlmvm]
  [<f9493ab9>] iwl_mvm_setup_connection_keep.isra.5+0x99/0x1d0 [iwlmvm]
  [<f9165e28>] ? cfg80211_report_wowlan_wakeup+0x308/0x510 [cfg80211]
  [<f9493fe5>] iwl_mvm_query_wakeup_reasons+0x3f5/0x5f0 [iwlmvm]
  [<c116125a>] ? init_object+0x3a/0x70
  [<f8a5b8ee>] ? iwl_trans_pcie_d3_resume+0x1be/0x3a0 [iwlwifi]
  [<f94956da>] __iwl_mvm_resume+0x14a/0x180 [iwlmvm]
  [<f9495736>] iwl_mvm_d3_test_release+0x26/0xc0 [iwlmvm]
  [<c117a64d>] __fput+0xad/0x210
  [<c117a7bd>] ____fput+0xd/0x10
  [<c10601a1>] task_work_run+0x81/0xb0
  [<c1040fa5>] do_exit+0x255/0xac0
  [<c104e511>] ? dequeue_signal+0x31/0x1a0
  [<c1041888>] do_group_exit+0x38/0xa0
  [<c10a6cfb>] ? trace_hardirqs_on+0xb/0x10
  [<c1051c31>] get_signal_to_deliver+0x1e1/0x8e0
  [<c104bd52>] ? try_to_del_timer_sync+0x42/0x60
  [<c104bd70>] ? try_to_del_timer_sync+0x60/0x60
  [<c168dc82>] ? schedule_timeout+0x102/0x2a0
  [<c10011ba>] do_signal+0x3a/0x8e0
  [<c104b190>] ? __internal_add_timer+0xb0/0xb0
  [<c168de7a>] ? schedule_timeout_interruptible+0x1a/0x20
  [<c104ce39>] ? msleep_interruptible+0x39/0x40
  [<f94939a9>] ? iwl_mvm_d3_test_read+0x49/0x70 [iwlmvm]
  [<c11797fc>] ? vfs_read+0x8c/0x160
  [<c11243af>] ? SyS_fadvise64_64+0x15f/0x2b0
  [<f9493960>] ? iwl_mvm_wowlan_program_keys+0x4a0/0x4a0 [iwlmvm]
  [<c1179a57>] ? SyS_read+0x57/0xa0
  [<c1001acf>] do_notify_resume+0x6f/0xa0
  [<c1692500>] work_notifysig+0x29/0x31

Fix this by hold the rtnl lock when calling __iwl_mvm_resume() in the
d3 test wake up path.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:49:12 +02:00
Emmanuel Grumbach 8dfc275109 iwlwifi: mvm: remove unneeded NULL pointer check
mac80211 will never call rate_control_tx_status with a NULL
pointer for sta. Remove the superfluous check. This check
misled smatch.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:49:11 +02:00
Eyal Shapira dc574e5263 iwlwifi: rs: option to easily disable Tx MIMO
The current TLC isn't optimized for low latency and some devices
have issues with MIMO. This kind of combo creates latency issues.
Allow to temporarily disable MIMO for tests in order to solve
the latency issues without the added complexity of MIMO.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29 12:49:11 +02:00
Emmanuel Grumbach 7f2ac8fb31 iwlwifi: pcie: fix polling in various places
iwl_poll_bit may return a strictly positive value when the
poll doesn't match on the first try.
This was caught when WoWLAN started failing upon resume
even if the poll_bit actually succeeded.

Also change a wrong print. If we reach the end of
iwl_pcie_prepare_card_hw, it means that we couldn't
get the devices.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-23 21:21:49 +03:00
Emmanuel Grumbach 1ffde699aa Revert "iwlwifi: mvm: treat EAPOLs like mgmt frames wrt rate"
This reverts commit aa11bbf3df.
This commit was causing connection issues and is not needed
if IWL_MVM_RS_RSSI_BASED_INIT_RATE is set to false by default.

Regardless of the issues mentioned above, this patch added the
following WARNING:

WARNING: CPU: 0 PID: 3946 at drivers/net/wireless/iwlwifi/mvm/tx.c:190 iwl_mvm_set_tx_params+0x60a/0x6f0 [iwlmvm]()
Got an HT rate for a non data frame 0x8
CPU: 0 PID: 3946 Comm: wpa_supplicant Tainted: G           O   3.17.0+ #6
Hardware name: LENOVO 20ANCTO1WW/20ANCTO1WW, BIOS GLET71WW (2.25 ) 07/02/2014
 0000000000000009 ffffffff814fa911 ffff8804288db8f8 ffffffff81064f52
 0000000000001808 ffff8804288db948 ffff88040add8660 ffff8804291b5600
 0000000000000000 ffffffff81064fb7 ffffffffa07b73d0 0000000000000020
Call Trace:
 [<ffffffff814fa911>] ? dump_stack+0x41/0x51
 [<ffffffff81064f52>] ? warn_slowpath_common+0x72/0x90
 [<ffffffff81064fb7>] ? warn_slowpath_fmt+0x47/0x50
 [<ffffffffa07a39ea>] ? iwl_mvm_set_tx_params+0x60a/0x6f0 [iwlmvm]
 [<ffffffffa07a3cf8>] ? iwl_mvm_tx_skb+0x48/0x3c0 [iwlmvm]
 [<ffffffffa079cb9b>] ? iwl_mvm_mac_tx+0x7b/0x180 [iwlmvm]
 [<ffffffffa0746ce9>] ? __ieee80211_tx+0x2b9/0x3c0 [mac80211]
 [<ffffffffa07492f3>] ? ieee80211_tx+0xb3/0x100 [mac80211]
 [<ffffffffa0749c49>] ? ieee80211_subif_start_xmit+0x459/0xca0 [mac80211]
 [<ffffffff814116e7>] ? dev_hard_start_xmit+0x337/0x5f0
 [<ffffffff81430d46>] ? sch_direct_xmit+0x96/0x1f0
 [<ffffffff81411ba3>] ? __dev_queue_xmit+0x203/0x4f0
 [<ffffffff8142f670>] ? ether_setup+0x70/0x70
 [<ffffffff814e96a1>] ? packet_sendmsg+0xf81/0x1110
 [<ffffffff8140625c>] ? skb_free_datagram+0xc/0x40
 [<ffffffff813f7538>] ? sock_sendmsg+0x88/0xc0
 [<ffffffff813f7274>] ? move_addr_to_kernel.part.20+0x14/0x60
 [<ffffffff811c47c2>] ? __inode_wait_for_writeback+0x62/0xb0
 [<ffffffff813f7a91>] ? SYSC_sendto+0xf1/0x180
 [<ffffffff813f88f9>] ? __sys_recvmsg+0x39/0x70
 [<ffffffff8150066d>] ? system_call_fastpath+0x1a/0x1f
---[ end trace cc19a150d311fc63 ]---

which was reported here: https://bugzilla.kernel.org/show_bug.cgi?id=85691

CC: <stable@vger.kernel.org> [3.13+]
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-23 21:21:49 +03:00
Emmanuel Grumbach a0855054e5 iwlwifi: dvm: drop non VO frames when flushing
When mac80211 wants to ensure that a frame is sent, it calls
the flush() callback. Until now, iwldvm implemented this by
waiting that all the frames are sent (ACKed or timeout).
In case of weak signal, this can take a significant amount
of time, delaying the next connection (in case of roaming).
Many users have reported that the flush would take too long
leading to the following error messages to be printed:

iwlwifi 0000:03:00.0: fail to flush all tx fifo queues Q 2
iwlwifi 0000:03:00.0: Current SW read_ptr 161 write_ptr 201
iwl data: 00000000: 00 00 00 00 00 00 00 00 fe ff 01 00 00 00 00 00
[snip]
iwlwifi 0000:03:00.0: FH TRBs(0) = 0x00000000
[snip]
iwlwifi 0000:03:00.0: Q 0 is active and mapped to fifo 3 ra_tid 0x0000 [9,9]
[snip]

Instead of waiting for these packets, simply drop them. This
significantly improves the responsiveness of the network.
Note that all the queues are flushed, but the VO one. This
is not typically used by the applications and it likely
contains management frames that are useful for connection
or roaming.

This bug is tracked here:
https://bugzilla.kernel.org/show_bug.cgi?id=56581

But it is duplicated in distributions' trackers.
A simple search in Ubuntu's database led to these bugs:

https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1270808
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1305406
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1356236
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1360597
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1361809

Cc: <stable@vger.kernel.org>
Depends-on: 77be2c54c5 ("mac80211: add vif to flush call")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-23 21:21:48 +03:00
Matti Gottlieb a6cc516314 iwlwifi: mvm: ROC - bug fixes around time events and locking
Don't add the time event to the list. We added it several
times the same time event, which leads to an infinite loop
when walking the list.

Since we (currently) don't support more than one ROC for STA
vif at a time, enforce this and don't add the time event
to any list.

We were also missing the locking of the mutex which led to
a lockdep splat - fix that.

Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-23 21:21:48 +03:00
Haim Dreyfuss 79b7a69d73 iwlwifi: mvm: Add tx power condition to bss_info_changed_ap_ibss
The tx power should be limited from many reasons.
currently, setting the tx power is available by the mvm only for
station interface. Adding the tx power condition to
bss_info_changed_ap_ibss make it available also for AP.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-23 21:21:48 +03:00
Emmanuel Grumbach 3856b78c1b iwlwifi: mvm: BT coex - fix BT prio for probe requests
The probe requests sent during scan must get BT prio 3.
Fix that.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-23 21:21:47 +03:00
Emmanuel Grumbach d14b28fd2c iwlwifi: mvm: BT Coex - update the MPLUT Boost register value
Cc: <stable@vger.kernel.org> [3.16+]
Fixes: 2adc8949ef ("iwlwifi: mvm: BT Coex - fix boost register / LUT values")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-23 21:21:47 +03:00
Liad Kaufman 405b7338ab iwlwifi: 8000: fix string given to MODULE_FIRMWARE
I changed the string but forgot to update the fix also to
MODULE_FIRMWARE().

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-23 21:21:47 +03:00
Emmanuel Grumbach 9180ac5071 iwlwifi: configure the LTR
The LTR is the handshake between the device and the root
complex about the latency allowed when the bus exits power
save. This configuration was missing and this led to high
latency in the link power up. The end user could experience
high latency in the network because of this.

Cc: <stable@vger.kernel.org> [3.10+]
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-23 21:21:47 +03:00
Luciano Coelho 0f791eb47f mac80211: allow channel switch with multiple channel contexts
Channel switch with multiple channel contexts should now work fine.
Remove check that disallows switches when multiple contexts are in
use.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-10-09 11:30:09 +02:00
Andrei Otcheretianski 48849a4150 iwlwifi: mvm: Refactor and fix max probe len computation
Move iwl_mvm_max_scan_ie_len function to scan.c and fix the
implementation to conform with the LMAC scan API.
Since the correct implementation would leave us with unacceptably
tiny probes, add a workaround which returns a larger value.
In current implementation it's possible that unified_scan_lmac and
unified_sched_scan_lmac would return -ENOBUFS.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-21 22:20:15 +03:00
Emmanuel Grumbach 9b60bb6d86 iwlwifi: mvm: disable BT Co-running by default
The tables still contain dummy values.

Cc: <stable@vger.kernel.org> [3.15+]
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-21 22:20:10 +03:00
Eyal Shapira efed66407d iwlwifi: mvm: rs: fix logic in case of multiple TIDs
In case of traffic on multiple TIDs where one is aggregated
and the other is not RS would toggle between considering
traffic vs. the station as aggregated and not aggregated.
Instead consider the sta state as aggregated as long as
there's at least one TID aggregated.
This limitation is because the rates table is kept per
station and not per TID.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-21 13:25:49 +03:00
Eyal Shapira a7130442b0 iwlwifi: mvm: report all BA notifs to RS
Currently BA notifications which don't reclaim any frames
would not cause the RS to be called as no skbs are passed
to mac80211. This is not optimal as RS can benefit from the
statistics of sent vs. acked of such a BA. This can improve the
reaction time of the RS algorithm. Also, an upcoming change in
the firmware would cause BA timeout to be reported as a BA notif
with 0 acked so this change is required for that as well.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-21 13:25:48 +03:00
Liad Kaufman 2bf6508133 iwlwifi: 8000: fix fw name to account for revision
The 8000 HW series also includes the revision in the FW
name.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-21 13:25:48 +03:00
Liad Kaufman 1fc0e22138 iwlwifi: pcie: fix HW_REV saving for 8000 series
Align the trans->hw_rev variable format with previous series
format.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-21 13:25:47 +03:00
Oren Givon 4f08970f52 iwlwifi: Add missing PCI IDs for the 7260 series
Add 4 missing PCI IDs for the 7260 series.

Cc: <stable@vger.kernel.org> [3.10+]
Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-21 13:25:46 +03:00
Eyal Shapira ddfc159373 iwlwifi: mvm: limit aggregation size in low latency to 6
This is a tradeoff between enabling better throughput for
bursty traffic and low latency. The number 6 was found to be
a good tradeoff for the Miracast use case which is the
major use case for low latency.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-21 13:25:46 +03:00
Eyal Shapira 1ebc8f2ef8 iwlwifi: mvm: rs: refactor to allow direct rs updating
Enable RS to get updated directly via iwl_mvm_rs_tx_status
which will be called by the driver and not via mac80211
rate control. This is required for a following patch to
report on BAs which do not cause the BA window to progress.
Also this is a first step in decoupling rs from the
mac80211 rate control.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-21 13:25:45 +03:00
Eyal Shapira 361dbec8ac iwlwifi: mvm: choose an initial tx rate based on rssi conditions
Improve the initial tx rate and antenna selection to be based on
the rssi of the last rx. This avoids starting at the lowest legacy
rate always and requiring more tx traffic to "climb" up the rates.
Since this option might cause trouble in certain setups, allow to
disable it by default.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-21 13:25:44 +03:00
Alexander Bondar 59ecb1283f iwlwifi: mvm: Allow schedule scan while connected
In the past when schedule scan was started while connected on one of
interfaces FW crashes were observed. In the newest FW this issue is
solved, so remove limitaion after examining corresponding TLV flag.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-16 12:57:51 +03:00
Luciano Coelho c549e3903a iwlwifi: mvm: add debugfs entry to read the current temperature
When read, this new debugfs entry requests the current temperature
from the firmware and outputs it.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-16 12:57:50 +03:00
Avri Altman 3edf8ff617 iwlwifi: mvm: prepare for scheduler config command
The scheduler is a HW sub-block that directs the work of the Flow
Handler by issuing requests for frame transfers, specifying source
and destination. Its primary function is to allocate flows into the
TX FIFOs based upon a pre-determined mapping.

The driver has some responsibilities to the scheduler, namely
initialising and maintaining the hardware registers. This is
currently done by directly accessing them, which can cause races
with the firmware also accessing the registers.

To address this problem, change the driver to no longer directly
access the registers but go through the firmware for this if the
firmware has support for DQA and thus the new command.

Signed-off-by: Avri Altman <avri.altman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-16 12:57:50 +03:00
Andrei Otcheretianski 73897bd1d9 iwlwifi: mvm: Set RRM_ENABLED bit in scan commands
Set RRM_ENABLED (bit 6) flag in scan commands. When this flag is set
the fw will add WFA vendor-specific TPC report and DS parameter set
IEs into probe requests.
This bit is set for SCAN_OFFLOAD_REQUEST_CMD(0x51).

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Assaf Krauss <assaf.krauss@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-16 12:57:50 +03:00
Assaf Krauss 226bcd48ea iwlwifi: mvm: Announce Quiet Period support
Add a ucode capability flag for support of Quiet Period (part of RRM).
If this flag is set, advertise device support.

Signed-off-by: Assaf Krauss <assaf.krauss@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-16 12:57:50 +03:00
Andrei Otcheretianski f1daa00e36 iwlwifi: mvm: Update TX power in TPC reports
Introduce new tx command flag (TX_CMD_FLG_WRITE_TX_POWER) which requests the
fw to update the tx power value at some constant offset.
Set this flag when transmitting either TPC report or Link measurement report
action frames.
In addition, introduce new tlv which indicates whether the fw supports power
insertion (IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT) and publish the
corresponding nl80211 feature.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-16 12:57:50 +03:00
Ido Yariv b71d9c8a9d iwlwifi: mvm: support cloned tx skbs
Since tx skbs are not modified by the driver, let mac80211 know the
driver can handle cloned skbs.

Signed-off-by: Ido Yariv <idox.yariv@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-16 12:57:49 +03:00
John W. Linville 6bd2bd27ba This time, I have some rate minstrel improvements, support for a very
small feature from CCX that Steinar reverse-engineered, dynamic ACK
 timeout support, a number of changes for TDLS, early support for radio
 resource measurement and many fixes. Also, I'm changing a number of
 places to clear key memory when it's freed and Intel claims copyright
 for code they developed.
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Merge tag 'mac80211-next-for-john-2014-09-12' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg <johannes@sipsolutions.net> says:

"This time, I have some rate minstrel improvements, support for a very
small feature from CCX that Steinar reverse-engineered, dynamic ACK
timeout support, a number of changes for TDLS, early support for radio
resource measurement and many fixes. Also, I'm changing a number of
places to clear key memory when it's freed and Intel claims copyright
for code they developed."

Conflicts:
	net/mac80211/iface.c

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-15 14:51:23 -04:00
Luciano Coelho f991e17ba2 iwlwifi: mvm: align CSA GO NOA time event naming with the firmware
The time event used for CSA GO will also be used by CSA client.
Rename the symbols to something more generic and aligned with the
firmware code.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 22:02:24 +03:00
Eliad Peller 4cb832d559 iwlwifi: mvm: move IWL_MVM_UAPSD_QUEUES to constants.h
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 22:02:24 +03:00
Arik Nemtsov 9474d444bd iwlwifi: mvm: fix PSM disable during TDLS
Simplify the code and check for TDLS stations just before sending the
MAC_POWER_TABLE command. The previous version of the code still allowed
PM in some multi-interface scenarios even with TDLS connected.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 22:02:24 +03:00
Avri Altman 49c6d8021f iwlwifi: mvm: Fix skip over dtim configuration in d0i3
There was some confusion concerning the units of the beacon interval.
The driver assumed that it was in msec where it was in TU - so fix that.
Skip over dtim was capped by 300TU where it should be by 306TU.
It should also be subjected to several conditions:
Not a DFS channel, dtim period < 10, and the multicast wake-lock
is off.  Concerning multicast lock - there is an implementation gap
in the supplicant, so just leave a TODO.

Signed-off-by: Avri Altman <avri.altman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 22:02:24 +03:00
Arik Nemtsov d431725233 iwlwifi: mvm: move TDLS code to separate file
The upcoming TDLS channel-switch functionality is big enough to warrant
a separate file. Move existing related functions to the new file.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 22:02:24 +03:00
Johannes Berg f7d8b70290 iwlwifi: mvm: update QoS parameters when they change
The QoS parameters can change during the lifetime of the BSS,
and more importantly hostapd only sets up the correct ones
after having started the AP/GO. Resend the MAC context when
the parameters change, with the updated parameters.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 22:02:23 +03:00
David Spinadel 3974533776 iwlwifi: mvm: reduce active dwell time
Reduce basic active dwell time from 30 ms on 2.4 GHz and 20 on 5.2 to
20 on 2.4 and 10 on 5.2.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 22:02:23 +03:00
Johannes Berg 3d4060d581 iwlwifi: mvm: fix quota update avoidance
When not updating the quota, the new command shouldn't be stored
as otherwise slowly drifting quota would never update the firmware.
Fix this by storing the command only when it was also sent.

Since the error message also only makes sense when attempting to
send the command, just short-circuit the function when there's no
need to send the command.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 22:02:23 +03:00
Emmanuel Grumbach 4bfa47f317 iwlwifi: mvm: allow to collect debug data when restart is disabled
In some testing configuration, the firmware restart flow is
not enabled. Allow to collect logs even in this case.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 22:01:51 +03:00
Luciano Coelho a0a09243e0 iwlwifi: mvm: use the firmware to get the temperature during CT kill
Reading the temperature directly from the hardware, without the help
of the firmware, is a complex process and is not entirely the same for
different hardware.  Also, some NICs don't easily allow access to the
sensors when the firmware is not running, which would add even more
complexity to the code.

To reduce the code complexity and to avoid code duplication between
the firmware and the driver, boot the firmware briefly to read the
current temperature while in CT kill mode.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 13:06:40 +03:00
Johannes Berg 34e611ea2a iwlwifi: mvm: update d0i3 debugfs
A lot of the newer d0i3 ref additions weren't added to the
debugfs file, fix that and add a comment to remember to do
it in the future.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:59:47 +03:00
Avri Altman 6d93affd3a iwlwifi: mvm: remove unused static inline function
Signed-off-by: Avri Altman <avri.altman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:40 +03:00
Toralf Förster ad25c1ee55 iwlwifi/iwl-drv.c: fix typo defualt -> default
trivial, but this is user visible b/c it is in the help text

Signed-off-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:40 +03:00
Johannes Berg b2b7875bfb iwlwifi: mvm: don't update quota in firmware too often
When updating quota in the firmware, it has to reset quite a bit
of internal state, which apparently can have an adverse impact on
its operation.

Avoid that by only updating the quota command when there are any
signification changes, i.e. added/removed bindings or changes in
quota that are bigger than 8 TU within a binding.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:40 +03:00
Emmanuel Grumbach bbab758279 iwlwifi: define the non shared antenna per hardware
The sharing model will differ in new hardware. Define the
non shared antenna based on the device so that different
devices can have different names for the non shared antenna.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:39 +03:00
Johannes Berg 5d4185ae0c iwlwifi: pcie: clear command data on freeing
When freeing the structures used for command data, clear their
memory as they may have contained key material at some point.
Also clear the duplicated buffer when freeing it to be safe;
currently key material is never put there but that may change.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:39 +03:00
Liad Kaufman c2a2b28bb7 iwlwifi: make hw rev checking more readable
Rather than ANDing with a mask - use existing macros, which
are more readable.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:39 +03:00
Emmanuel Grumbach 3a736bcb18 iwlwifi: trans: don't configure the set_active in SCD for dvm
This configuration is not needed for dvm, and it actually
broke it.

Reported-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:39 +03:00
Johannes Berg f7f89e7bae iwlwifi: mvm: disable aggregation queues in station DB in FW
When disabling aggregation, disable the queues in the station
DB in the firmware, otherwise we leave the tfd_queue_mask in
a wrong state after an aggregation session has been torn down.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:38 +03:00
Eyal Shapira f58220f6b9 iwlwifi: mvm: rs: don't zero tx stats after idle
Move the tx stats to the persistent area of lq_sta to
avoid them being zeroed out every time rs reinitializes
which happens after tx idle for 5 secs for example.
The automatic zeroing out made them difficult to use.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:38 +03:00
Max Stepanov f3bd58f486 iwlwifi: mvm: add MVM_FW_MCAST_FILTER_PASS_ALL option
Add MVM_FW_MCAST_FILTER_PASS_ALL option to iwl-dbg-cfg.ini configuration file
to enable/disable FW multicast filtering.

Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:38 +03:00
Luciano Coelho a26d4e7b09 iwlwifi: mvm: fail temp test enabling if the ucode is not loaded
If the ucode is not loaded, don't allow the temperature test to be
started, but allow it to be changed or stopped if already running.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:38 +03:00
Luciano Coelho bc44886d26 iwlwifi: mvm: reset ucode_loaded flag when mac80211 stop is called
We rely on the value of the mvm->ucode_loaded flag to decide whether
or not we can perform certain operations (e.g. access to some debugfs
entries), so we need to reset it when the mac80211 stop operation is
called and the hardware is shutdown.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:38 +03:00
Eyal Shapira 2536e7c350 iwlwifi: mvm: rs: remove max_rate_idx
max_rate_idx constraint is deprecated and it's handling is
faulty as well as it is relevant only for legacy rates but
was considered in HT/VHT. In most cases there was no side effect
as max_rate_idx was set to -1 but in certain cases like P2P
it got set to an actual rate idx which would limit the maximum
rate in HT/VHT by mistake.
max_rate_idx should be replaced by the masks fields but for
now remove it.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:37 +03:00
Eyal Shapira 099d8086a8 iwlwifi: enable LDPC in 8000 chip family
This chip family supports LDPC so enable it.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:37 +03:00
Eran Harary 161bdb7780 iwlwifi: mvm: allow preventing dummy notifications
The firwmare now allows the driver to disable dummy
notifications. These notifications sent by the firmware
are an overhead for slow buses. They are still useful for
fast buses.
Add a hardware switch to prevent these notifications only
on devices that work on slow buses.

Signed-off-by: Eran <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:37 +03:00
Oren Givon d4200cb248 iwlwifi: add and edit 8000 series PCI IDs
Edit some 8000 series PCI IDs and add configuration to
Dual Band Wireless N 8260 devices.

Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:36 +03:00
Eyal Shapira a3576ff28e iwlwifi: mvm: add LDPC support
Use LDPC for Tx and publish support for Rx in case the chip
supports LDPC. Enable it for the 7265 family.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:36 +03:00
Emmanuel Grumbach 71511c866b Merge remote-tracking branch 'iwlwifi-fixes/master' into NEXT 2014-09-14 12:54:42 +03:00
Eliad Peller 0d8614b4b9 mac80211: replace SMPS hw flags with wiphy feature bits
Use the new static_smps / dynamic_smps feature bits
instead of mac80211-internal hw flags.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-09-11 13:37:02 +02:00
Eyal Shapira 2cddddc56a iwlwifi: mvm: fix an overflow in iwl_mvm_get_signal_strength
The idea here is to translate a value of 0 received from
the firmware to the lowest rssi figure. As rx_status->chain_signal
is a signed byte the lowest possible value is -128 and not -256.
-256 was causing 0 to get stored in the signed byte.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 19:47:22 +03:00
Oren Givon 498abba6a0 iwlwifi: add PCI IDs and add then new 3165 series
This change does the following:
1) Add a new 7265 series PCI ID
2) Add two new 3160 series PCI IDs
3) Add the new 3165 series PCI IDs and configurations

Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 19:47:16 +03:00
Emmanuel Grumbach f8dfc607b2 iwlwifi: dvm: disable power save by default
In
https://bugzilla.kernel.org/show_bug.cgi?id=84031,
the submitter said that disabling power saving helped,
do just that.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 09:18:47 +03:00
Johannes Berg 582de30afa iwlwifi: mvm: BT Coex - always initialize smps_mode
smps_mode is used uninitialized in a debug statement in AP
mode, so always initialize it.

While at it, fix a typo.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 09:18:36 +03:00
Emmanuel Grumbach 717e2390dc iwlwiwi: mvm: use bss_conf->dtim_period instead of conf.ps_dtim_period
The latter is meant for software implementation of power
save and is not per-virtual interface. Since our driver
supports multiple virtual interfaces, we need to use
vif->bss_conf.dtim_period.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 09:17:49 +03:00
Eyal Shapira aa11bbf3df iwlwifi: mvm: treat EAPOLs like mgmt frames wrt rate
Using the LQ table which is initially set according to
the rssi could lead to EAPOLs being sent in high legacy
rates like 54mbps.
It's better to avoid sending EAPOLs in high rates as it reduces
the chances of a successful 4-Way handshake.
Avoid this and treat them like other mgmt frames which would
initially get sent at the basic rate.

Cc: <stable@vger.kernel.org> [3.13+]
Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 09:17:29 +03:00
Johannes Berg 1bc10d3b50 iwlwifi: mvm: correctly handle PM/QoS changes from mac80211
When mac80211 requests multiple BSS config changes, as for example
while associating, we ignore power management and QoS changes and
only apply them later. Fix that by removing the "else" and making
the conditions independent.

Also move it after (potential) beacon filter enablement to have
that already enabled when going into power management code.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 09:17:28 +03:00
Eliad Peller 22d059a5c7 iwlwifi: increase DEFAULT_MAX_TX_POWER
The chip is able to transmit up to 22dBm, so set
the constant appropriately.

CC: <stable@vger.kernel.org> [3.13+]
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 09:17:19 +03:00
Emmanuel Grumbach 86974bff06 iwlwifi: mvm: fix endianity issues with Smart Fifo commands
This code was broken on big endian systems. Sparse didn't
catch the bug since the firmware command was not tagged as
little endian.
Fix the bug for big endian systems and tag the field in the
firmware command to prevent such issues in the future.

Cc: stable@vger.kernel.org [3.14+]
Fixes: 1f3b0ff8ec ("iwlwifi: mvm: Add Smart FIFO support")
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 09:17:09 +03:00
Luciano Coelho 7c8b3bc688 iwlwifi: mvm: set MAC_FILTER_IN_BEACON correctly for STA/P2P client
In commit cad3f08c (iwlwifi: mvm: enable MAC_FILTER_IN_BEACON when
forced_assoc_off is set) the code to set the MAC_FILTER_IN_BEACON flag
was accidentally moved to the main block of the if statement, while it
should be in the else block instead.  Move it to the right place.

Fixes: cad3f08c23 ("iwlwifi: mvm: enable MAC_FILTER_IN_BEACON when forced_assoc_off is set")
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 09:17:08 +03:00
Johannes Berg 787d6c1f17 iwlwifi: mvm: BT Coex - remove shadowing variable
The variable 'u32 mode' exists twice, the latter shadowing
the former - remove the latter since there's no need for
two variables.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 09:16:55 +03:00
Johannes Berg 712b24adc1 iwlwifi: mvm: clean up AUX station handling
The auxiliary station is being handled using the internal
station helper functions, clean that up and make the helpers
static.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:13 +03:00
Johannes Berg 013290aa46 iwlwifi: mvm: clean up broadcast station handling
Unify all the functions that handle the per-interface broadcast
station and make them have mvm and vif parameters. While at it,
add a new function to allocate the broadcast station instead of
open-coding it, and make the combined alloc+send and free+send
functions use the alloc/free & send functions.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:13 +03:00
Johannes Berg 110cf81085 iwlwifi: mvm: use iwl_mvm_mac_get_queues_mask() more
There are a few places that can call the function
iwl_mvm_mac_get_queues_mask() instead of open-coding the
equivalent, so do that. This requires changing it to return
the multicast queue as part of the bitmap, which broke GO
mode because including it in the broadcast station queues
seems to confuse the firmware, so work around that.

Also, the API defines that the CAB queue shouldn't be
included in the TFD queue mask, adjust the comment
accordingly (not a bug).

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:12 +03:00
Johannes Berg 9e848010bf iwlwifi: mvm: use tdls indication from mac80211
Instead of checking whether a given station is the first to
be added on a client interface check for the new TDLS flag
and warn in the unexpected cases.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:11 +03:00
Johannes Berg df197c00bf iwlwifi: mvm: clarify stop_count, remove transport_stopped
The queue handling is a bit unclear - we have an array for
stop_count[IWL_MAX_HW_QUEUES] but indices really are the
mac80211 queue numbers. Change the array to be only of the
right size for mac80211 queues (IEEE80211_MAX_QUEUES) and
rename it to be clearer.

While at it, also remove the unused transport queue stop
bitmap in mvm.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:10 +03:00
Johannes Berg b2d81db7b3 iwlwifi: mvm: clean up FIFO definitions
Move all FIFO definitions together into the firmware API
header file and use the same enum/naming scheme for the
command FIFO.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:10 +03:00
Johannes Berg 3dfd3a97c8 iwlwifi: mvm: correct firmware disassoc command sequence
The firmware would like to have a MAC context (unassoc)
before the AP station is removed (we do this) but would
like to keep the BSSID until after it is removed, so we
need to send two commands - one with the BSSID before
and one without the BSSID after.

In order to do this, we need to store the BSSID as it
will have been cleared by mac80211 by the time we get
notified of the disassociation. Also pass it around as
an override to the various functions needing it, and
keep taking it from the mac80211 data otherwise. This
avoids having to keep track of the BSSID in all modes.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:09 +03:00
Luciano Coelho 0ce04ce797 iwlwifi: mvm: set the TX disable bit when doing a chanctx switch
During a channel switch we should tell the firmware to disable TX
temporarily and re-enable it after the switch is done.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:08 +03:00
Johannes Berg 8b4139dc9f iwlwifi: add Intel Mobile Communications copyright
Our legal structure changed at some point (see wikipedia), but
we forgot to immediately switch over to the new copyright
notice.

For files that we have modified in the time since the change,
add the proper copyright notice now.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:07 +03:00
Avri Altman 002a9e2677 iwlwifi: trans: configure the scheduler enable register
Currently the firmware is handling this, but that is wrong as it then
needs to assume a certain command queue, therefore this should be in
the driver; add it here so it can be removed from the firmware in the
future.

Signed-off-by: Avri Altman <avri.altman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:06 +03:00
Johannes Berg 64ba893066 iwlwifi: trans: make aggregation explicit for TX queue handling
Currently a valid sta_id is assumed to mean that the queue is
meant to also be aggregated, but that assumption will not be
true in the future, so don't make it in the lower level but
only in the inline wrapper.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:06 +03:00
Johannes Berg d4578ea810 iwlwifi: trans: allow skipping scheduler hardware config
In a later patch, the hardware configuration will be moved to
firmware. Prepare for this by allowing hardware configuration
in the transport to be skipped by not passing a configuration
on enable and passing configure_scd=false on disable.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:05 +03:00
Eran Harary 0ade579cce iwlwifi: mvm: fix comment typo
Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:04 +03:00
Johannes Berg 532cf5c683 iwlwifi: don't export tracepoints unnecessarily
The tracepoints that are only used in code linked with iwlwifi.ko,
as are the tracepoints, don't need to be exported, so don't.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:03 +03:00
Johannes Berg a43ad46a45 iwlwifi: mvm: add some debugging to quota allocation
In order to follow more easily what's going on, add some
debug statements to the quota allocation algorithm.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:03 +03:00
David Spinadel 2ce89cd6df iwlwifi: mvm: enable passive fragmented scan changes
Enable fragmented scan that was diabled due to a FW bug.
New fixed FWs use a TLV bit to advertise fragmented scan support.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:02 +03:00
Johannes Berg fea7795f1c iwlwifi: trans: refactor txq_enable arguments
Instead of having all arguments passed to the function,
add a struct to hold them and only pass some directly.

This will make future work in this area cleaner.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:01 +03:00
Avri Altman 680073b78a iwlwifi: consolidate hw scheduler configuration code
Configuring the hw scheduler during queue enablement is done by
writing the appropriate values to the scheduler peripherals, and
it is essentially the same for all buses.

Whenever writing is done via the standard iwl_write_prph, we can
avoid duplicating the code for each bus. Those operations are
queue deactivation, RA/TID mapping, chain-building settings,
enabling/disabling aggregations and activating/deactivating the
TX FIFOs.

Consolidate this code using static inlines in a new header file.

Signed-off-by: Avri Altman <avri.altman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:00 +03:00
Liad Kaufman d20d37bc39 iwlwifi: mvm: wait for TE notif when protecting TDLS session
Make sure that when running the TDLS discovery session
protection - the time event that ensures we remain on channel
has been scheduled and started running before leaving.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:00 +03:00
Luciano Coelho 2533edcee8 iwlwifi: mvm: add option that allows a vif to disable PS
We need to disable PS when a monitor vif is active or, in the future,
when a channel switch is happening.  Add a boolean to mvmvif that
allows PS to be disabled generically.  Additionally, make the monitor
interface use this new flag when it gets activated.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:48:59 +03:00
Luciano Coelho ef9203d23f iwlwifi: mvm: add function to update only ps
Add a new iwl_mvm_power_update_ps() function that allows only ps to be
updated according to changes in the vifs.  This allows us to disable
ps only without affecting the pm values of the vifs (and to avoid
sending unnecessary MAC_PM_POWER_TABLE commands to the firmware).

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:48:58 +03:00
Luciano Coelho 128aa948d0 iwlwifi: mvm: refactor iwl_mvm_power_set_pm() to spin the ps part off
Separate the ps part of iwl_mvm_power_set_pm() into a new
iwl_mvm_power_set_ps() function.  This will enable us to update the ps
part independently from the rest, which is needed by CSA (at least).

This required a bit of refactoring and the creation of a new iterator
function.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:48:57 +03:00
Luciano Coelho b1873300e1 iwlwifi: mvm: re-enable ps when monitor interfaces are removed
If a monitor interface is added and then removed, we don't reset the
mvm->ps_disabled flag, so we never re-enable power saving.  Fix that
and rearrange the code a bit.

Additionally, fix a small indentation mistake in the
iwl_mvm_power_set_pm() function declaration.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:48:57 +03:00
Eliad Peller 228670b2e6 iwlwifi: mvm: clear d0i3 state on recovery
If recovery happened after mvm entered d0i3 (e.g.
due to sysassert when releasing the bus), the
mvm->state wasn't cleared properly, causing the
ongoing recovery to fail (due to iwl_mvm_ref_sync
failure).

This in turn fails the ongoing recovery, and triggers
a reprobe, which terminates any ongoing wifi activity.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:48:49 +03:00
Eyal Shapira 9ecd051ecd iwlwifi: mvm: disable tx aggregation on low latency vifs
Aggregations hit latency so disable it by default on
low latency vifs for now. Enable control over this behavior and
allow control over the max frames in an AMPDU in low latency
vifs via debugfs.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:33:17 +03:00
Luciano Coelho bdd5483958 iwlwifi: mvm: add debugfs entry for ps_disabled
In order to make debugging easier, add an entry to export the
ps_disabled value via debugfs.  To make usage of the
debugfs_create_*() function easier, change the ps_disabled element to
u8.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:33:17 +03:00
Johannes Berg d6ca18de12 iwlwifi: make U-APSD default configurable at compile time
With a significant number of deployed APs, enabling uAPSD leads to the
AP never using aggregation sessions (likely due to the complexities
involved in handling uAPSD in those.) This obviously results in a large
drop in throughput with such APs.

On the other hand, uAPSD can result in some power consumption benefits,
but for now just disable it to get performance with affected APs back
up.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:33:16 +03:00
Eran Harary 32be1a83af iwlwifi: mvm: fix the dump_umac_error_log
1. the base_address limitation was wrong, address can be bigger than
0x80C000
2. the ucode data_struct changed.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:33:15 +03:00
Matti Gottlieb a2d79c5709 iwlwifi: mvm: Add marker command 0xcb
Add Marker command.
The marker command send the ucode the time of sending the command in
milliseconds since 1970-01-01 00:00:00 UTC, in addition to other metatdata.
The ucode inserts this information into the usniffer logs, and returns the GP2
time stamp inside the command response.

Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:33:15 +03:00
Luciano Coelho efc36dbd5a iwlwifi: mvm: don't run automatic checks if CT was caused by debugfs
If we're manually testing the CT kill functionality via debugfs, we
shouldn't schedule the work to recheck the temperature after the
ct_kill_duration period has passed.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:33:14 +03:00
Luciano Coelho b689fa799a iwlwifi: mvm: reset the temperature when temperature test is disabled
Since we can't read the actual temperature when the firmware is
running, just set the temperature to 0 when the test is disabled and
disable CT Kill if it was enabled.

Additionally, since we rely on iwl_mvm_tt_handler() to exit CT kill
when in test mode, call iwl_mvm_exit_ctkill() in that function if the
temperature is low again.  Also make the iwl_mvm_enter_ctkill() and
iwl_mvm_exit_ctkill() return if called when not necessary anymore
(e.g. when iwl_mvm_exit_ctkill() is called when we're not in CT-kill).

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:33:13 +03:00
Emmanuel Grumbach a4db848f2d iwlwifi: mvm: force protection for P2P
Performance is less an issue in P2P and reliability
is critical. Enable protection always for P2P.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:33:12 +03:00
Eliad Peller 84fd7608a0 iwlwifi: mvm: add use_ps-poll debugfs power option
By default, when uapsd is not used, the ucode uses
null data packet to exit power-save and get then
pending frames.

However, some tests require the explicit usage of ps-poll.
Allow setting use_ps_poll power option (through debugfs)
to configure the ucode to use ps-poll instead.

The ucode configuration is done by setting the advanced-pm
flag while setting all the ACs to non-upasd mode.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:33:12 +03:00
Emmanuel Grumbach 697162a13d iwlwifi: mvm: use dynamic SMPS for P2P Client
This allows to force the GO to use protection and enhances
the reliability of the link.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:33:11 +03:00
Emmanuel Grumbach 7ceb98a313 iwlwifi: mvm: reduce the AMPDU size in low latency mode
This allows to leave a frame in the Tx Fifo which allows
the firmware to try to enter burst mode.
The end result of this is a better latency since the
firmware utilises the TxOP better.

Also limit the AMPDU size to the limit set in the ADDBA
response. This doesn't change much since the AMPDU size
was limited by the configuration of the hardware scheduler,
but here we add a software limit by the mean of the link
quality command.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:33:10 +03:00
Matti Gottlieb 7280d1f0bd iwlwifi: mvm: Add set NIC temperature debug option
Add ability to set the NIC's temperature and ignore the actual temperature
that the FW supplies.

Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:33:06 +03:00
Emmanuel Grumbach 6efaaf33be iwlwifi: mvm: enable scheduled scan on newest firmware
Scheduled scan was disabled because of a bug in the firmware.
The firmware reported support for this feature, but enabling
it led to assertions.
The bugs have been fixes in latest firmware versions, so that
we can re-enable the feature on latest firmwares only.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-01 10:03:21 +03:00
Emmanuel Grumbach d88c8958dc iwlwifi: bump firmware API version to 10 for 7000 and 8000
New firmware on the way.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-01 09:50:14 +03:00
Marcel Holtmann ab1304b986 iwlwifi: Remove module build requirement for Intel Wireless WiFi
The CONFIG_IWLDVM and CONFIG_IWLMVM currently have a
"depends on m" as its requirement forcing it to be build
as module. This is not needed and thus just remove it.

Fixes: ae7486a2b7 ("iwlwifi: fix Kconfig issues")
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
[Squashed 2 commites for MVM and DVM]
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-08-31 22:20:09 +03:00
Emmanuel Grumbach f47f46d7b0 Revert "iwlwifi: dvm: don't enable CTS to self"
This reverts commit 43d826ca59.

This commit caused packet loss.

Cc: <stable@vger.kernel.org>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-08-31 22:11:19 +03:00
Linus Torvalds a11c5c9ef6 PCI changes for the v3.17 merge window (part 2):
Miscellaneous
     - Remove DEFINE_PCI_DEVICE_TABLE macro use (Benoit Taine)
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Merge tag 'pci-v3.17-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull DEFINE_PCI_DEVICE_TABLE removal from Bjorn Helgaas:
 "Part two of the PCI changes for v3.17:

    - Remove DEFINE_PCI_DEVICE_TABLE macro use (Benoit Taine)

  It's a mechanical change that removes uses of the
  DEFINE_PCI_DEVICE_TABLE macro.  I waited until later in the merge
  window to reduce conflicts, but it's possible you'll still see a few"

* tag 'pci-v3.17-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use
2014-08-14 18:10:33 -06:00
Emmanuel Grumbach 77b2f28659 iwlwifi: mvm: disable scheduled scan to prevent firmware crash
There are firmwares which don't support scheduled scan.
Disable it for now.
Linus's system encoutered this issue.
Thanks to David Spinadel for his help.

Tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-08-14 19:47:41 +03:00
Benoit Taine 9baa3c34ac PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use
We should prefer `struct pci_device_id` over `DEFINE_PCI_DEVICE_TABLE` to
meet kernel coding style guidelines.  This issue was reported by checkpatch.

A simplified version of the semantic patch that makes this change is as
follows (http://coccinelle.lip6.fr/):

// <smpl>

@@
identifier i;
declarer name DEFINE_PCI_DEVICE_TABLE;
initializer z;
@@

- DEFINE_PCI_DEVICE_TABLE(i)
+ const struct pci_device_id i[]
= z;

// </smpl>

[bhelgaas: add semantic patch]
Signed-off-by: Benoit Taine <benoit.taine@lip6.fr>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-08-12 12:15:14 -06:00
Arik Nemtsov f697267f82 iwlwifi: mvm: teardown TDLS peers during chan-switch and AP DCM
The DCM condition was not checked well for channel switch in both AP and
station scenarios. Teardown was also not done for AP/GO DCM. Add the
missing checks.

Reported-by: Peer, Ilan <ilan.peer@intel.com>
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 22:08:47 +03:00
Emmanuel Grumbach 917d083d48 Merge branch 'iwlwifi-fixes' into iwlwifi-next
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

Conflicts:
	drivers/net/wireless/iwlwifi/mvm/mac80211.c
2014-07-22 19:26:41 +03:00
Emmanuel Grumbach 8a275bad9c iwlwifi: mvm: reset beacon filtering and BT Coex data upon FW restart
When the firmware asserts, we restart the device and reset
the relevant data we hold in the driver. BT Coex data was
not reset and because of that, the driver wouldn't
reconfigure the firmware properly after firmware restart.
Same for beacon filtering. Fix that.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:13 +03:00
Eran Harary cc87d32293 iwlwifi: mvm: update smart fifo / beacon filtering upon association
When we associate, we may have heard the beacon before the
association. In that case, BSS_CHANGED_BEACON_INFO will be
set along with BSS_CHANGED_ASSOC in changes in
bss_info_change.

In this case, we didn't update the smart fifo nor beacon
filtering leaving those two feature disabled.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:13 +03:00
Emmanuel Grumbach 473ad712a4 iwlwifi: dump CSRs to fw-error-dump
Add the Control Status Registers to the firmware error dump
infrastructure.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:12 +03:00
Emmanuel Grumbach 67c65f2cf7 iwlwifi: dump periphery registers to fw-error-dump
Use the fw-error-dump infrastructure to dump the periphery
registers. Only certain ranges are readable, so dump only
these.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:11 +03:00
Emmanuel Grumbach 48eb7b34ff iwlwifi: split fw-error-dump between transport and mvm
The mvm op_mode won't allocate the buffer for the transport
any more. The transport allocates its own buffer and mvm
is in charge of splicing the buffers in the debugfs hook.

This makes the repartition easier to handle.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:10 +03:00
Emmanuel Grumbach 074279abb9 iwlwifi: fix inconsistency about power_save module parameter
modinfo and kerneldoc disagreed on the meaning of this field.

Reported-by: Andrea Oliveri <oliveriandrea@gmail.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:10 +03:00
Eran Harary abf09c5613 iwlwifi: mvm: minor change in debug print
Add OTP to the string: "can't parse empty OTP/NVM section"
NVM usually refers to nvm_file while the problem can be in
the OTP.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:09 +03:00
Eliad Peller 4660dfbbe0 iwlwifi: mvm: wait for handlers when stopping scans
The recent unified scan api change introduced issues
when stopping ongoing scans, since both regular and
sched scan now use same stopped notification.

When issuing a new scan right after a running one,
we get the "old" notification and handle it wrongly
as notification for the current scan.

Fix it by introducing a new function that make sure
we consume the pending notifications before issuing
a new scan.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: ArikX Nemtsov <arik@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:08 +03:00
Emmanuel Grumbach 45bbb2ca1e iwlwifi: mvm: BT Coex - don't change AP SMPS mode
Leave it to default instead - regardless of the BT activity.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:07 +03:00
Emmanuel Grumbach 1459f269e8 iwlwifi: mvm: BT Coex - fix the ACK / CTS kill mask
According to new requirements, the ACK / CTS kill mask is
not related to reduced TX power anymore. This allows to
remove the code that tracked reduced TX power enablement
across different interfaces.
The ACK / CTS kill mask is now fetch from a table. It
depends on the Activity grading (activity from BT) and on
the Look Up Table (LUT) type.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:07 +03:00
Ariej Marjieh b112889c5a iwlwifi: mvm: add Aux ROC request/response flow
The Remain On Channel framework added to the firmare is
a bit like time events. It allows the driver to request
the firmware to be on a certain channel for a certain time.
Unlike the time events, the ROC infrastructure doesn't need
a MAC context in the firmware - it uses a generic context
called "auxiliary framework".

This is useful for any offchannel activity that is not bound
to a specific MAC.
The flow is synchronized much like with time events:
1) The driver receives an action frame from the wpa_supplicant
   via nl80211 that requests to be sent offchannel.
2) The driver sends an Aux ROC command (0x53) to the firmware.
3) The firmware responds with the unique id of the time event.
4) When time event starts, the driver puts the frame in the
   Aux queue.

Special care needs to be taken when the time events ends:
the queue needs to be cleaned-up.

Signed-off-by: Ariej Marjieh <ariej.marjieh@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:20:59 +03:00
Ariej Marjieh 720befbf2e iwlwifi: mvm: Define AUX ROC Command
Add new AUX ROC command that is intended for HS2.0 purposes.
It is used to send ANQP requests on a specific channel.

This command requests the firmware to trigger a time event
and remain on a certain channel for a given duration.
Triggering the time event is done by using the Aux
Framework in the firmware, and makes use of the Aux station
(similarly to scan).

Signed-off-by: Ariej Marjieh <ariej.marjieh@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-21 10:43:39 +03:00
Ariej Marjieh 7da91b0ee4 iwlwifi: mvm: Enabling Aux Queue
Enabling the Aux queue and mapping it to FIFO 5.
Defining the Aux queue for the Aux station.

Signed-off-by: Ariej Marjieh <ariej.marjieh@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-21 10:43:14 +03:00
Eliad Peller 576eeee9d3 iwlwifi: mvm: add some missing iwl_mvm_ref_sync() calls
Add iwl_mvm_ref_sync() calls (with new ref types) to
flows that might access the device directly.

These calls make sure the device is out of d0i3,
and the bus is available for direct access.

Since some of these functions are reentrant, convert
the refs_bitmap to a ref counter, so multiple refs
of the same type could be taken concurrently.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-21 10:43:13 +03:00
Eytan Lifshitz 51ea1c7dbd iwlwifi: mvm: fix wrong offset while reading from NVM
As part of thermal throttling, some data is being read from NVM.
The offset is in words, but was addressed as in octets. fixed.

Signed-off-by: Eytan Lifshitz <eytan.lifshitz@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-21 10:43:13 +03:00
Eliad Peller 4601879419 iwlwifi: mvm: pass beacons from foreign APs
In AP mode, configure the fw to pass beacons from
foreign APs, in order to be able to set the ht
protection IE properly.

Add the same filters in case of GO (which didn't have
any configured filter_flags, probably by mistake)

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-21 10:38:25 +03:00
Emmanuel Grumbach 4b8265ab4d iwlwifi: mvm: use C99 initializers for add_sta
Instead of code the fixed values, use a C99 initializer.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-21 10:26:46 +03:00
Emmanuel Grumbach ae7486a2b7 iwlwifi: fix Kconfig issues
Randy fixes a few issues in iwlwifi's Kconfig. Because of
this, 'Debugging options' was not indented under iwlwifi
using menuconfig.

I added a few other fixes on the way, like the link to the
website and added 7265 in the supported NICs.

Reported-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
[ Commit message + other fixes ]
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-21 10:20:55 +03:00
Oren Givon 745160ee10 iwlwifi: add max RX aggregation size
Allow to configure the maximal Rx AMPDU size per device.

Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-21 10:17:27 +03:00
Emmanuel Grumbach 5fc7d86c7a iwlwifi: mvm: BT Coex - fix TLC with old API
A copy paste issue broke the rate control when a firmware
with the old API is used.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-08 08:44:31 +03:00
Emmanuel Grumbach 589a6ba46b iwlwifi: mvm: minor fix in comment
The comment was not accurate, we are talking about the frames
*for* the station and not from the station.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:25 +03:00
Liad Kaufman 9b1fcc11a8 iwlwifi: mvm: remove 8000 HW family setting of adc sampling on nic config
This patch removes the setting of the ADC sampling bits in
the mvm nic configuration. This setting is not required by
the firmware, and furthermore - it interferes with the DBGC
when it is running in DRAM mode on PCIe.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Dor Shaish <dor.shaish@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:24 +03:00
Arik Nemtsov f59e0e3cd8 iwlwifi: mvm: teardown TDLS peers when initiating DCM
The FW currently doesn't optimally support TDLS in DCM mode. Teardown
all TDLS peers when we have more than a single phy context.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:24 +03:00
Arik Nemtsov fa3d07e47f iwlwifi: disable PSM on vifs with associated TDLS peers
The FW does not support PSM on a vif with associated TDLS peers. Disable
PSM when the first peer joins and re-enable it when the last leaves.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:23 +03:00
Arik Nemtsov 07ecd897b1 iwlwifi: mvm: protect TDLS discovery session
Use the new mac80211 callback to protect a TDLS discovery session so we
can hear the discovery-response packet.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:22 +03:00
Arik Nemtsov cf7b491dbb iwlwifi: mvm: disallow new TDLS stations when appropriate
HW/FW constraints dictate that TDLS should only be used when a single
phy ctx is active. We also support at most 4 TDLS peers. We don't
support TDLS on a P2P vif.

Unify and move a phy-ctx counting implementation from the power-mgmt code
in order to simplify implementation.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:21 +03:00