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path: root/drivers/net/wireless/ath/carl9170/main.c
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2016-04-12cfg80211: remove enum ieee80211_bandJohannes Berg
This enum is already perfectly aliased to enum nl80211_band, and the only reason for it is that we get IEEE80211_NUM_BANDS out of it. There's no really good reason to not declare the number of bands in nl80211 though, so do that and remove the cfg80211 one. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-14mac80211: pass block ack session timeout to to driverSara Sharon
Currently mac80211 does not inform the driver of the session block ack timeout when starting a rx aggregation session. Drivers that manage the reorder buffer need to know this parameter. Seeing that there are now too many arguments for the drv_ampdu_action() function, wrap them inside a structure. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-09-22mac80211: allow to transmit A-MSDU within A-MPDUEmmanuel Grumbach
Advertise the capability to send A-MSDU within A-MPDU in the AddBA request sent by mac80211. Let the driver know about the peer's capabilities. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-10mac80211: convert HW flags to unsigned long bitmapJohannes Berg
As we're running out of hardware capability flags pretty quickly, convert them to use the regular test_bit() style unsigned long bitmaps. This introduces a number of helper functions/macros to set and to test the bits, along with new debugfs code. The occurrences of an explicit __clear_bit() are intentional, the drivers were never supposed to change their supported bits on the fly. We should investigate changing this to be a per-frame flag. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-04-24mac80211: remove support for IFF_PROMISCJohannes Berg
This support is essentially useless as typically networks are encrypted, frames will be filtered by hardware, and rate scaling will be done with the intended recipient in mind. For real monitoring of the network, the monitor mode support should be used instead. Removing it removes a lot of corner cases. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-01-08cfg80211: remove "channel" from survey namesJohannes Berg
All of the survey data is (currently) per channel anyway, so having the word "channel" in the name does nothing. In the next patch I'll introduce global data to the survey, where the word "channel" is actually confusing. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-08-28carl9170: Remove redundant protection checkAndreea-Cristina Bernat
The carl9170_op_ampdu_action() function is used only by the mac80211 framework. Since the mac80211 already takes care of checks and properly serializing calls to the driver's function there is no need for the driver to do the same thing. Signed-off-by: Andreea-Cristina Bernat <bernat.ada@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-04-09mac80211: add vif to flush callEmmanuel Grumbach
This will allow the low level driver to make decision based on the vif such as queues etc... Since the vif might be NULL, we can't add it to the tracing functions. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> [fix staging rtl8821ae driver] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-01-13Merge branch 'for-john' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
2014-01-07mac80211: remove channel_change_timeJohannes Berg
This value is no longer used by mac80211, and practically no driver ever set it to a correct value anyway, so remove it. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-01-03wireless: delete non-required instances of include <linux/init.h>Paul Gortmaker
None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Acked-by: Christian Lamparter <chunkeey@googlemail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-21mac80211: add a flag to indicate CCK support for HT clientsFelix Fietkau
brcm80211 cannot handle sending frames with CCK rates as part of an A-MPDU session. Other drivers may have issues too. Set the flag in all drivers that have been tested with CCK rates. This fixes a reported brcmsmac regression introduced in commit ef47a5e4f1aaf1d0e2e6875e34b2c9595897bef6 "mac80211/minstrel_ht: fix cck rate sampling" Cc: stable@vger.kernel.org # 3.10 Reported-by: Tom Gundersen <teg@jklm.no> Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-06-13carl9170: add support for the new rate control APIChristian Lamparter
With the new rate control API, the driver can now apply the tx rate to outgoing frames just before they are uploaded to the device. This is important because the rate control can now react to fading or improving links a bit sooner. Also, the driver no longer needs to sort the outgoing frames for sample attempts (which affected the size of A-MPDUs and the throughput of the link). For aggregated data frames, the driver (and rate control) needs only to calculate and apply a single set of tx rates to every subframe of the whole aggregate. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-10Merge branch 'for-john' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next Conflicts: drivers/net/wireless/ath/carl9170/debug.c drivers/net/wireless/ath/carl9170/main.c net/mac80211/ieee80211_i.h
2013-03-27carl9170: remove fast channel change featureChristian Lamparter
Marco Fonseca reported a issue with his carl9170 device: "I'm seeing a problem with the carl driver. If I change channels repeatedly on the 2.4ghz band, monitoring (e.g. tcpdump) will eventually halt. I've seen this on various versions of the carl driver/firmware (both from 1.9.4 to 1.9.7)" <http://marc.info/?l=linux-wireless&m=136381302428113> The culprit was identified as "fast channel change feature" which according to Adrian Chadd is: "... notoriously unreliable and really only fully debugged on some very later chips." <http://marc.info/?l=linux-wireless&m=136416984531380> Therefore, this patch removes the fast channel change feature. The phy will now always have to go through a cold reset when changing channels, but it should no longer become deaf. Cc: Marco Fonseca <marco@tampabay.rr.com> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-25mac80211: Use a cfg80211_chan_def in ieee80211_hw_conf_chanKarl Beldan
Drivers that don't use chanctxes cannot perform VHT association because they still use a "backward compatibility" pair of {ieee80211_channel, nl80211_channel_type} in ieee80211_conf and ieee80211_local. Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com> [fix kernel-doc] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-18mac80211: pass queue bitmap to flush operationJohannes Berg
There are a number of situations in which mac80211 only really needs to flush queues for one virtual interface, and in fact during this frames might be transmitted on other virtual interfaces. Calculate and pass a queue bitmap to the driver so it knows which queues to flush. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-31mac80211: inform the driver about update of dtim_periodEmmanuel Grumbach
Currently, when the driver requires the DTIM period, mac80211 will wait to hear a beacon before association. This behavior is suboptimal since some drivers may be able to deal with knowing the DTIM period after the association, if they get it at all. To address this, notify the drivers with bss_info_changed with the new BSS_CHANGED_DTIM_PERIOD flag when the DTIM becomes known. This might be when changing to associated, or later when the entire association was done with only probe response information. Rename the hardware flag for the current behaviour to IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC to more accurately reflect its behaviour. IEEE80211_HW_NEED_DTIM_PERIOD is no longer accurate as all drivers get the DTIM period now, just not before association. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-22Merge branch 'for-john' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
2013-01-14wireless: make the reg_notifier() voidLuis R. Rodriguez
The reg_notifier()'s return value need not be checked as it is only supposed to do post regulatory work and that should never fail. Any behaviour to regulatory that needs to be considered before cfg80211 does work to a driver should be specified by using the already existing flags, the reg_notifier() just does post processing should it find it needs to. Also make lbs_reg_notifier static. Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com> [move lbs_reg_notifier to not break compile] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-07carl9170: remove custom NUM_TID and friendsChristian Lamparter
The commit: "mac80211: introduce IEEE80211_NUM_TIDS and use it" introduced a generic NUM_TID definitions for all everyone. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07carl9170: disable hw crypto for p2p networksChristian Lamparter
While the driver supports HW offload in a single P2P client configuration, it doesn't support HW offload in the concurrent P2P GO+CLIENT configuration. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07carl9170: don't enable hw crypto offload, if the fw doesn't support itChristian Lamparter
Previously, op_start would set disable_offload always to false, even if it was set to true by the fw parser. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07carl9170: allow P2P_GO interface creation after P2P_CLIENTChristian Lamparter
Janusz Dziedzic reported that after a change in wpa_supplicant ["nl80211: Automatically use concurrent P2P if possible"], carl9170 was no longer able to host a P2P network. This patch tackles the problem by allowing GO interfaces to be registered, long after the P2P_CLIENT interface is brought up. Reported-by: Janusz Dziedzic <janusz.dziedzic@gmail.com> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07carl9170: advertise support for TDLSChristian Lamparter
Based on a quick test [ath9k and carl9170], TDLS seemed to be working fine. And while we are at it, let's move the wiphy feature flag set from carl9170_alloc into a single place in carl9170_fw. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-03mac80211: split TX aggregation stop actionJohannes Berg
When TX aggregation is stopped, there are a few different cases: - connection with the peer was dropped - session stop was requested locally - session stop was requested by the peer - connection was dropped while a session is stopping The behaviour in these cases should be different, if the connection is dropped then the driver should drop all frames, otherwise the frames may continue to be transmitted, aggregated in the case of a locally requested session stop or unaggregated in the case of the peer requesting session stop. Split these different cases so that the driver can act accordingly; however, treat local and remote stop the same way and ask the driver to not send frames as aggregated packets any more. In the case of connection drop, the stop callback the driver is otherwise supposed to call is no longer required. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-08carl9170: fix sleep in softirq contextRonald Wahl
This patch fixes the following bug: usb 1-1.1: restart device (8) BUG: sleeping function called from invalid context at drivers/usb/core/urb.c:654 in_atomic(): 1, irqs_disabled(): 0, pid: 0, name: swapper (usb_poison_urb+0x1c/0xf8) (usb_poison_anchored_urbs+0x48/0x78) (carl9170_usb_handle_tx_err+0x128/0x150) (carl9170_usb_reset+0xc/0x20) (carl9170_handle_command_response+0x298/0xea8) (carl9170_usb_tasklet+0x68/0x184) (tasklet_hi_action+0x84/0xdc) this only happens if the device is plugged in an USB port, the driver is loaded but inactive (e.g. the wlan interface is down). If the device is active everything is fine. Signed-off-by: Ronald Wahl <ronald.wahl@raritan.com> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-24carl9170: connect to 11w protected networksChristian Lamparter
Previously, it was not possible to connect to networks which requires 11w to be supported by the stations. While the documentation hints that there's some hardware support for offloading MFP "decryption", this simple implementation relies on the mac80211 stack to do the actual crypto operations. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-08-06carl9170: Add support for NL80211_IFTYPE_MESH_POINT interfacesJavier Lopez
This patch contains following modifications: - Add mesh capabilities on fw.c to permit creation of mesh interfaces using this driver. - Modify carl9170_set_operating_mode, to use AP-style beaconing with mesh interfaces. - Allow beacon updates for NL80211_IFTYPE_MESH_POINT type in carl9170_handle_command_response. - Add NL80211_IFTYPE_MESH_POINT case on carl9170_op_add_interfaces to support mesh/ap/sta virtual interface combinations. Signed-off-by: Javier Lopez <jlopex@cozybit.com> Acked-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-07-11carl9170: fix HT peer BA session corruptionChristian Lamparter
This patch adds an alternative tx status path for BlockAck Requests as the hardware doesn't recognize that a BlockAck Requests is usually acked with a BlockAck and not a legacy ACK. Without this patch, the stack would constantly resent old and stale BARs. So, depending on the receiver stack, this could lead to: - "stuck" ba sessions and package loss, as the stale BAR would reset the sequence each time. - lots of reorder releases. - ... Reported-by: Sean Patrick Santos <quantheory@gmail.com> Reported-by: Mikołaj Kuligowski <mikolaj.q@wp.pl> Reported-by: Per-Erik Westerberg <per-erik.westerberg@bredband.net> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-27carl9170: allow users to lower output power levelChristian Lamparter
This patch implements a simple way of reducing the output power of the device by a configurable upper limit. Requested-by: Harshal Chhaya <harshal@gmail.com> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-24carl9170: remove eeprom data injection optionChristian Lamparter
In the early days, this was a quite useful software feature for testing different regdomains and chain configurations without adding debugfs cruft into the driver. Nowadays, the driver's phy code seems to be stable and there's no need for it anymore. Therefore I decided to removed altogether. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-24carl9170: claim to support IBSS RSN.Nicolas Cavallari
On carl9170, HW encryption is disabled on IBSS; the mac80211 software-based encryption is used instead. As mac80211 supports IBSS RSN (per-STA GTK), claim its support in the carl9170 PHY. Signed-off-by: Nicolas Cavallari <cavallar@lri.fr> Acked-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-19module_param: make bool parameters really bool (net & drivers/net)Rusty Russell
module_param(bool) used to counter-intuitively take an int. In fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy trick. It's time to remove the int/unsigned int option. For this version it'll simply give a warning, but it'll break next kernel version. (Thanks to Joe Perches for suggesting coccinelle for 0/1 -> true/false). Cc: "David S. Miller" <davem@davemloft.net> Cc: netdev@vger.kernel.org Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-23net: treewide use of RCU_INIT_POINTEREric Dumazet
rcu_assign_pointer(ptr, NULL) can be safely replaced by RCU_INIT_POINTER(ptr, NULL) (old rcu_assign_pointer() macro was testing the NULL value and could omit the smp_wmb(), but this had to be removed because of compiler warnings) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-11ath: remove ath_regulatory::current_rd_extFelix Fietkau
It is unused since the previous dead code that was using it had been removed earlier. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-03mac80211: pass vif param to conf_tx() callbackEliad Peller
tx params should be configured per interface. add ieee80211_vif param to the conf_tx callback, and change all the drivers that use this callback. The following spatch was used: @rule1@ struct ieee80211_ops ops; identifier conf_tx_op; @@ ops.conf_tx = conf_tx_op; @rule2@ identifier rule1.conf_tx_op; identifier hw, queue, params; @@ conf_tx_op ( - struct ieee80211_hw *hw, + struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue, const struct ieee80211_tx_queue_params *params) {...} Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-27mac80211: add ieee80211_vif param to tsf functionsEliad Peller
TSF can be kept per vif. Add ieee80211_vif param to set/get/reset_tsf, and move the debugfs entries to the per-vif directory. Update all the drivers that implement these callbacks. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-20Merge branch 'master' of git://git.infradead.org/users/linville/wirelessJohn W. Linville
Conflicts: drivers/net/wireless/iwlwifi/iwl-pci.c drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c drivers/net/wireless/rt2x00/rt2800usb.c drivers/net/wireless/wl12xx/main.c
2011-08-24carl9170: export HW random number generatorChristian Lamparter
All AR9170 hardware have a 16-Bit random number generator. The documentation claims the values are suitable for "security keys". The "throughput" is around 320Kibit/s. It's slow, but it does work without introducing any special offload firmware commands. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24carl9170: improve site surveyChristian Lamparter
The firmware keeps track of channel usage. This data can be used by the automatic channel selection to find the *best* channel. Survey data from wlan22 frequency: 2412 MHz [in use] noise: -86 dBm channel active time: 3339608 ms channel busy time: 270982 ms channel transmit time: 121515 ms Survey data from wlan22 frequency: 2417 MHz noise: -86 dBm channel active time: 70 ms channel busy time: 2 ms channel transmit time: 1 ms Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24carl9170: Fix mismatch in carl9170_op_set_key mutex lock-unlockAlexey Khoroshilov
If is_main_vif(ar, vif) reports that we have to fall back to software encryption, we goto err_softw; before locking ar->mutex. As a result, we have unprotected call to carl9170_set_operating_mode and unmatched mutex_unlock. The patch fix the issue by adding mutex_lock before goto. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Cc: <stable@kernel.org> Acked-By: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-15carl9170: fix formatting issues found by checkpatchPavel Roskin
Signed-off-by: Pavel Roskin <proski@gnu.org> Acked-By: christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-08carl9170: Implement tx_frames_pending mac80211 callback functionChristian Lamparter
Implementing this callback function will cause mac80211 refrain from going to powersave state when there are still untransmitted TX frames in the queues. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-05carl9170: use carl9170 queue enumsChristian Lamparter
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-05carl9170: enable IEEE80211_HW_NEED_DTIM_PERIODChristian Lamparter
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-16carl9170: advertise interface combinationsChristian Lamparter
In order to provide multiple interfaces for a single device, the driver will be required to advertise all possible interface configurations to the stack. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-05carl9170: fix allmulticast modeNicolas Cavallari
Currently, the driver only disable multicast filtering when the FIF_ALLMULTI driver flag has been just set (ie, if changed_flags& FIF_ALLMULTI and *new_flags& FIF_ALLMULTI) or else it will reenable multicast filtering. But next time, this condition will be false and multicast filtering will be reenabled, even through FIF_ALLMULTI is still set. This mean that allmulticast only works for less than two minutes in ad-hoc mode. This patch fixes that to disable multicast filtering as long as FIF_ALLMULTI is set. Signed-off-by: Nicolas Cavallari <cavallar@lri.fr> Acked-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-26carl9170: improve unicast PS bufferingChristian Lamparter
Using the ieee80211_sta_block allows the PS code to handle awake->doze->awake transitions of our clients in a race-free manner. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-03-29carl9170: Fix tx aggregation problems with some clientsChristian Lamparter
Some clients seem to rely upon the reception of BlockAckReqs to flush their rx reorder buffer. In order to fix aggregation for these clients carl9170 should set IEEE80211_TX_STAT_AMPDU_NO_BACK to generate a BlockAckReq if the transmission of an AMPDU subframe fails. This fixes aggregation problems with Intel 5100 Windows STAs (and maybe others as well). Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>