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path: root/drivers/net/wireless/iwlwifi
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2014-08-14Merge tag 'pci-v3.17-changes-2' of ↵Linus Torvalds
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
2014-08-14iwlwifi: mvm: disable scheduled scan to prevent firmware crashEmmanuel Grumbach
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>
2014-08-12PCI: Remove DEFINE_PCI_DEVICE_TABLE macro useBenoit Taine
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>
2014-07-22iwlwifi: mvm: teardown TDLS peers during chan-switch and AP DCMArik Nemtsov
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>
2014-07-22Merge branch 'iwlwifi-fixes' into iwlwifi-nextEmmanuel Grumbach
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Conflicts: drivers/net/wireless/iwlwifi/mvm/mac80211.c
2014-07-22iwlwifi: mvm: reset beacon filtering and BT Coex data upon FW restartEmmanuel Grumbach
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>
2014-07-22iwlwifi: mvm: update smart fifo / beacon filtering upon associationEran Harary
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>
2014-07-22iwlwifi: dump CSRs to fw-error-dumpEmmanuel Grumbach
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>
2014-07-22iwlwifi: dump periphery registers to fw-error-dumpEmmanuel Grumbach
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>
2014-07-22iwlwifi: split fw-error-dump between transport and mvmEmmanuel Grumbach
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>
2014-07-22iwlwifi: fix inconsistency about power_save module parameterEmmanuel Grumbach
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>
2014-07-22iwlwifi: mvm: minor change in debug printEran Harary
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>
2014-07-22iwlwifi: mvm: wait for handlers when stopping scansEliad Peller
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>
2014-07-22iwlwifi: mvm: BT Coex - don't change AP SMPS modeEmmanuel Grumbach
Leave it to default instead - regardless of the BT activity. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22iwlwifi: mvm: BT Coex - fix the ACK / CTS kill maskEmmanuel Grumbach
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>
2014-07-22iwlwifi: mvm: add Aux ROC request/response flowAriej Marjieh
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>
2014-07-21iwlwifi: mvm: Define AUX ROC CommandAriej Marjieh
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>
2014-07-21iwlwifi: mvm: Enabling Aux QueueAriej Marjieh
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>
2014-07-21iwlwifi: mvm: add some missing iwl_mvm_ref_sync() callsEliad Peller
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>
2014-07-21iwlwifi: mvm: fix wrong offset while reading from NVMEytan Lifshitz
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>
2014-07-21iwlwifi: mvm: pass beacons from foreign APsEliad Peller
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>
2014-07-21iwlwifi: mvm: use C99 initializers for add_staEmmanuel Grumbach
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>
2014-07-21iwlwifi: fix Kconfig issuesEmmanuel Grumbach
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>
2014-07-21iwlwifi: add max RX aggregation sizeOren Givon
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>
2014-07-08iwlwifi: mvm: BT Coex - fix TLC with old APIEmmanuel Grumbach
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>
2014-07-07iwlwifi: mvm: minor fix in commentEmmanuel Grumbach
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>
2014-07-07iwlwifi: mvm: remove 8000 HW family setting of adc sampling on nic configLiad Kaufman
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>
2014-07-07iwlwifi: mvm: teardown TDLS peers when initiating DCMArik Nemtsov
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>
2014-07-07iwlwifi: disable PSM on vifs with associated TDLS peersArik Nemtsov
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>
2014-07-07iwlwifi: mvm: protect TDLS discovery sessionArik Nemtsov
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>
2014-07-07iwlwifi: mvm: disallow new TDLS stations when appropriateArik Nemtsov
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>
2014-07-07iwlwifi: mvm: Use CS tx block bit for AP/GOAndrei Otcheretianski
An AP/GO may perform the channel switch slightly before its stations. This scenario may result in packet loss, since the transmission may start before the client is actually on a new channel. In order to prevent potential packet loss disable tx to all the stations when the channel switch flow starts. Clear the disable_tx bit when a station is seen on a target channel, or after IWL_MVM_CS_UNBLOCK_TX_TIMEOUT beacons on a new channel. In addition call ieee80211_sta_block_awake in order to inform mac80211 that the frames for this station should be buffered. 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>
2014-07-07iwlwifi: mvm: Reflect GO channel switch in NoAAndrei Otcheretianski
According to the spec, GO/AP should perform the channel switch just before "beacon 0". However, since the exact timing isn't defined, it may result in a sudden GO disappearance from the channel. Prevent potential packet loss when performing the CS by scheduling NoA time event and executing the channel switch flow when a notification from fw is received. 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>
2014-07-07iwlwifi: mvm: Protect mvm->csa_vif with RCUAndrei Otcheretianski
Currently mvm->csa_vif is protected with mvm mutex. The RCU protection is required for "iwlwifi: mvm: Reflect GO channel switch in NoA" patch. 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>
2014-07-07iwlwifi: mvm: Use beacon_get_template instead of beacon_getAndrei Otcheretianski
Call ieee80211_beacon_get_template instead of ieee80211_beacon_get and sync the CSA counters with mac80211 after each beacon transmission. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Reviewed-by: Luciano Coelho <luciano.coelho@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07iwlwifi: mvm: CSA unbind-bind flow support for clientLuciano Coelho
Implement support for unbind-bind flow for the client roles. This includes telling the firmware that we are not associated, removing time-events, removing quotas and updating power management during the actual switch, and redoing everything in the new channel. 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>
2014-07-07iwlwifi: mvm: add switch_vif_chanctx operationLuciano Coelho
Implement the switch_vif_chanctx operation with support for a single-vif and SWAP mode. The REASSIGN mode and multi-vifs are not supported yet. This operation needs to implement 4 steps, namely unassign, remove, add and assign the chanctx. In order to do this, split out these operations into locked and non-locked parts, thus allowing us to call them while locked. Additionally, in order to allow us to restart the hardware when something fails, add a boolean to the iwl_mvm_nic_restart() function that tells whether the restart was triggered by a FW error or something else. 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>
2014-07-07iwlwifi: mvm: remove update type argument from quota updateJohannes Berg
It turns out that adding the update type argument was pointless as quota update is never called from the add_interface() callback. Therefore, IWL_MVM_QUOTA_UPDATE_TYPE_NEW isn't actually needed and then only a "disabled_vif" argument is needed for the upcoming CSA work. Remove the whole enum iwl_mvm_quota_update_type and pass the right arguments (always NULL for disabled vif right now) to the function in all current call sites. 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>
2014-07-07iwlwifi: mvm: don't pass update type to quota iteratorJohannes Berg
Simplify the quota iterator by not passing the update type, it only needs to know whether or not to skip an interface. 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>
2014-07-07iwlwifi: mvm: validate that we don't send zero quotaJohannes Berg
The firmware currently deals with zero quota for a given binding, but it seems odd to send that down. Make sure that we don't do that. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07iwlwifi: mvm: don't send zero quota to the firmwareJohannes Berg
There are some cases where we can currently send zero quota for a valid binding, e.g. if we update while an interface is bound to a channel context but not yet acting as an AP. Avoid this by reordering the checks. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07iwlwifi: mvm: let iwl_mvm_update_quotas disregard a disabled vifLuciano Coelho
In some cases (e.g. when we're doing a channel switch), we may need to disable the quota of a vif temporarily. In order to do so, add an argument to the iwl_mvm_update_quotas() function to tell if the passed vif is a new one or if it should be disregarded. 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>
2014-07-07iwlwifi: 8000: drop a print when the address is invalidEran Harary
when driver takes the MAC address from the HW section and it isn't valid - print an error. Signed-off-by: Eran Harary <eran.harary@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07iwlwifi: mvm: fix endianity in scan commandDavid Spinadel
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>
2014-07-07iwlwifi: mvm: init lmac scan commandDavid Spinadel
Initialize LMAC scan command. Fix EBS flag to be dependant on TLV flg and fix other bugs. 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>
2014-07-07iwlwifi: mvm: add unified LMAC scan APIDavid Spinadel
Add new scan API that uses the same command 0x51 for both regular and sched scan. 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>
2014-07-07iwlwifi: mvm: rs: don't save debugfs filesEliad Peller
These file are removed recursively anyway, so there's no point saving them just to redundantly remove them later. Signed-off-by: Eliad Peller <eliadx.peller@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07iwlwifi: mvm: rs: don't clear persistent fieldsEliad Peller
iwl_mvm_rs_rate_init() is called multiple times to re-init the rate scaling statistics (e.g. after some idle time). It clears all the lq_sta sta, including some fields that shouldn't be cleared (e.g. debugfs pointers). Fix it by adding a new 'persistent' sub-struct, and avoid clearing it on (re-)init. Move the initialization of the persistent fields to rs_alloc_sta instead. 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>
2014-07-07iwlwifi: mvm: warn about empty OTPEran Harary
Signed-off-by: Eran Harary <eran.harary@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07iwlwifi: mvm: BT Coex - relax constraints when TTC / RRC is activeEmmanuel Grumbach
When TxTxCo-Running is active, we can relax the constraints on the rate control. When RxRxCo-Running is active, we can relax the constrains on SMPS. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>