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path: root/drivers/net/wireless
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2018-12-05net: documentation: build a directory structure for driversJakub Kicinski2-6/+6
Documentation/networking/ is full of cryptically named files with driver documentation. This makes finding interesting information at a glance really hard. Move all those files into a directory called device_drivers (since not all drivers are for device) and fix up references. RFC v0.1 -> RFC v1: - also add .txt suffix to the files which are missing it (Quentin) Signed-off-by: Jakub Kicinski <[email protected]> Reviewed-by: Quentin Monnet <[email protected]> Acked-by: David Ahern <[email protected]> Acked-by: Henrik Austad <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2018-12-05mac80211-next: rtnetlink wifi simulation deviceCody Schuffelen3-0/+641
This device takes over an existing network device and produces a new one that appears like a wireless connection, returning enough canned responses to nl80211 to satisfy a standard connection manager. If necessary, it can also be set up one step removed from an existing network device, such as through a vlan/80211Q or macvlan connection to not disrupt the existing network interface. To use it to wrap a bare ethernet connection: ip link add link eth0 name wlan0 type virt_wifi You may have to rename or otherwise hide the eth0 from your connection manager, as the original network link will become unusuable and only the wireless wrapper will be functional. This can also be combined with vlan or macvlan links on top of eth0 to share the network between distinct links, but that requires support outside the machine for accepting vlan-tagged packets or packets from multiple MAC addresses. This is being used for Google's Remote Android Virtual Device project, which runs Android devices in virtual machines. The standard network interfaces provided inside the virtual machines are all ethernet. However, Android is not interested in ethernet devices and would rather connect to a wireless interface. This patch allows the virtual machine guest to treat one of its network connections as wireless rather than ethernet, satisfying Android's network connection requirements. We believe this is a generally useful driver for simulating wireless network connections in other environments where a wireless connection is desired by some userspace process but is not available. This is distinct from other testing efforts such as mac80211_hwsim by being a cfg80211 device instead of mac80211 device, allowing straight pass-through on the data plane instead of forcing packaging of ethernet data into mac80211 frames. Signed-off-by: A. Cody Schuffelen <[email protected]> Acked-by: Alistair Strachan <[email protected]> Acked-by: Greg Hartman <[email protected]> Acked-by: Tristan Muntsinger <[email protected]> [make it a tristate] Signed-off-by: Johannes Berg <[email protected]>
2018-12-05mac80211_hwsim: fixes kernel crash during mac80211_hwsim initJames Prestwood1-0/+1
Creating radios during startup follows a different code path than HWSIM_CMD_NEW_RADIO. The problem was that param.iftypes was not being set to the deafult before calling mac80211_hwsim_new_radio Signed-off-by: James Prestwood <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2018-12-03Merge tag 'wireless-drivers-next-for-davem-2018-11-30' of ↵David S. Miller129-1128/+4604
git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== wireless-drivers-next patches for 4.21 First set of patches for 4.21. Most notable here is support for Quantenna's QSR1000/QSR2000 chipsets and more flexible ways to provide nvram files for brcmfmac. Major changes: brcmfmac * add support for first trying to get a board specific nvram file * add support for getting nvram contents from EFI variables qtnfmac * use single PCIe driver for all platforms and rename Kconfig option CONFIG_QTNFMAC_PEARL_PCIE to CONFIG_QTNFMAC_PCIE * add support for QSR1000/QSR2000 (Topaz) family of chipsets ath10k * add support for WCN3990 firmware crash recovery * add firmware memory dump support for QCA4019 wil6210 * add firmware error recovery while in AP mode ath9k * remove experimental notice from dynack feature iwlwifi * PCI IDs for some new 9000-series cards * improve antenna usage on connection problems * new firmware debugging infrastructure * some more work on 802.11ax * improve support for multiple RF modules with 22000 devices cordic * move cordic macros and defines to a public header file * convert brcmsmac and b43 to fully use cordic library ==================== Signed-off-by: David S. Miller <[email protected]>
2018-11-30mt76: replace sta_add/remove ops with common sta_state functionFelix Fietkau10-52/+95
Allows adding unassociated stations from mac80211 Signed-off-by: Felix Fietkau <[email protected]> Signed-off-by: Lorenzo Bianconi <[email protected]>
2018-11-30mt76: mt76x02: remove mt76x02_txq_initFelix Fietkau3-28/+15
Open-coding it simplifies the code Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: mt76x02: make group_wcid the first member in struct mt76x02_vifFelix Fietkau1-2/+1
Allows mt76 core to cast vif->drv_priv to struct mt76_wcid Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: add mt76_sta_remove helperFelix Fietkau3-9/+24
This allows station removal code to be used by mt7603 later Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: fix race condition in station removalFelix Fietkau2-2/+4
If there are still pending packets in the tx queue when removing a station, it could possibly lead to a call to further attempts to pull packets from the mac80211 tx queue after it has already been removed from the scheduling list. Prevent this from happening by calling synchronize_rcu after deleting the wcid pointer before further cleaning up the tx queues. To be extra careful, ensure that mtxq->list is always initialized properly. Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: do not wake tx queues during flushFelix Fietkau1-1/+1
While the queue is being cleaned up, the stack must not attempt to add any extra packets Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: avoid queue/status spinlocks while passing tx status to mac80211Felix Fietkau6-38/+76
There is some code in the mac80211 tx status processing code that could potentially call back into the tx codepath. To avoid deadlocks, make sure that no tx related spinlocks are taken during the ieee80211_tx_status call. Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: remove wait argument from mt76x02_mcu_calibrateStanislaw Gruszka7-39/+36
We always wait for CMD_CALIBRATION_OP mcu message, but wait argument is used for do additional MT_MCU_COM_REG0 register operations, which are needed for mt76x2e devices and we can use appropriate check instead of wait argument. Signed-off-by: Stanislaw Gruszka <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x2u: init: remove mt76x2u_init_beacon_offsets routineLorenzo Bianconi1-10/+0
Remove mt76x2u_init_beacon_offsets routine since the driver supports just STA mode Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x2u: main: use mt76x02_bss_info_changed utility routineLorenzo Bianconi1-20/+3
Initialize bss_info_changed mac80211 callback to mt76x02_bss_info_changed utility routine and remove duplicated code. Use 8 as WCID index for sta interface Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x2u: phy: run phy_channel_calibrate after channel switchLorenzo Bianconi3-9/+15
Perform channel calibration after each channel switch and not only after connection establishment since NetworkManager perform multiple frequency scanning if RSSI in lower a given threshold Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x2u: phy: add TX_SHAPING calibrationLorenzo Bianconi1-0/+1
Add MCU_CAL_TX_SHAPING calibration in mt76x2u_phy_channel_calibrate routine since now mt76x2 and mt76x2u driver run the same firmware Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x0: pci: enable VHT rates in IBSS modeLorenzo Bianconi2-3/+2
Enable VHT tx rates in ad-hoc mode for mt76x0e driver. Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: introduce mt76x02_config_mac_addr_list routineLorenzo Bianconi4-15/+27
Add mt76x02_config_mac_addr_list routine in order to set the mac address list supported by the driver. Initialize wiphy->addresses/n_addresses for mt76x0e driver Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x0: dfs: fix IBI_R11 configuration on non-radar channelsLorenzo Bianconi1-2/+6
Fix IBI_R11 configuration on non-radar channels for mt76x0e driver. This patch improve system stability under heavy load. Moreover use IBI_R11 name and remove magic numbers for 0x212c register Fixes: 0c3b3abc9251 ("mt76x0: pci: add DFS support") Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x02: assure we update gain after scanStanislaw Gruszka3-3/+8
Assure that after we initialize dev->cal.low_gain to -1 this will cause update gain calibration. Otherwise this might or might not happen depending on value of second bit of low_gain and values read from registers in mt76x02_phy_adjust_vga_gain(). Signed-off-by: Stanislaw Gruszka <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x02: run calibration after scanningStanislaw Gruszka4-1/+6
If we are associated and scanning is performed, sw_scan_complete callback is done after we get back to operating channel, so we do not perform queue cal work. Fix this queue cal work from sw_scan_complete(). On mt76x0 we have to restore gain in MT_BBP(AGC, 8) register after scanning, as it was multiple times modified by channel switch code. So queue cal work without any delay to set AGC gain value. Similar like in mt76x2 init AGC gain only when set operating channel and just check before queuing cal work in sw_scan_complete() if initialization was already done. Fixes: bbd10586f0df ("mt76x0: phy: do not run calibration during channel switch") Signed-off-by: Stanislaw Gruszka <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: remove wait argument from mt76x02_mcu_set_radio_stateStanislaw Gruszka6-10/+7
Remove wait argument from mt76x02_mcu_set_radio_state and newer wait for response when sending CMD_POWER_SAVING_OP mcu command. Note this change behaviour for PCIe devices, but the change is in align with vendor driver. Signed-off-by: Stanislaw Gruszka <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: remove wait argument from mt76x02_mcu_function_selectStanislaw Gruszka6-12/+13
Remove wait argument from mt76x02_mcu_function_select and wait for response when function is not Q_SELECT, what is the same behaviour like in vendor driver. Note this change behaviour for PCIe devices for Q_SELECT function form wait to no-wait, and for mt76x0u BW_SETTING from no-wait to wait. But the change is in align with vendor driver. Signed-off-by: Stanislaw Gruszka <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: remove mcu_msg_allocStanislaw Gruszka7-44/+35
We almost always use patter like this: skb = mt76_mcu_msg_alloc(dev, &msg, sizeof(msg)); return mt76_mcu_send_msg(dev, skb, CMD_FUN_SET_OP, wait_resp); This is not needed, we can allocate skb in mcu_send_msg routine. Signed-off-by: Stanislaw Gruszka <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x0: use band parameter for LC calibrationStanislaw Gruszka1-2/+3
We use always 1 as band parameter for MCU_CAL_LC, this break 2GHz, we should use 0 for this band instead. Patch fixes problems happened sometimes when try to associate with 2GHz AP and manifest by errors like below: [14680.920823] wlan0: authenticate with 18:31:bf:c0:51:b0 [14681.109506] wlan0: send auth to 18:31:bf:c0:51:b0 (try 1/3) [14681.310454] wlan0: send auth to 18:31:bf:c0:51:b0 (try 2/3) [14681.518469] wlan0: send auth to 18:31:bf:c0:51:b0 (try 3/3) [14681.726499] wlan0: authentication with 18:31:bf:c0:51:b0 timed out Fixes: 9aec146d0f6b ("mt76x0: pci: introduce mt76x0_phy_calirate routine") Signed-off-by: Stanislaw Gruszka <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x0: phy: use tssi reported value to configure tx power if availableLorenzo Bianconi2-5/+17
Use tssi calibrated value to configure tx power gain if tssi is enabled in eeprom data Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x0: phy: introduce tssi calibration supportLorenzo Bianconi3-3/+357
Run mt76x0 tssi calibration process if enabled in eeprom data. Perform calibration procedure every 4s Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: move mt76x02_eeprom_copy in mt76x02-lib moduleLorenzo Bianconi3-13/+17
Move mt76x02_eeprom_copy utility routine in mt76x02-lib module in order to be reused by mt76x0 driver adding tssi calibration support Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x2u: init: use common routines for wcid/key initializationLorenzo Bianconi1-12/+7
Use mt76x02_mac_wcid_setup and mt76x02_mac_shared_key_setup for shared keys and wcid table initialization and remove duplicated code Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x2u: init: remove not useful configurationLorenzo Bianconi1-3/+0
Remove MT_TSO_CTRL and MT_HEADER_TRANS_CTRL_REG initialization since it is already done in mt76_write_mac_initvals routine Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x0: init: use mt76x02_mac_wcid_setup for wcid configurationLorenzo Bianconi1-43/+2
Use mt76x02_mac_wcid_setup utility routine for wcid init configuration and remove duplicated code. This patch fixes a mt76x0 AP issue since hw key table selection was set to pairwise by default Fixes: dbad2adcb2c7 ("mt76x0: pci: enable AP support") Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x2: move wcid_tx_rate conf at bootstrapLorenzo Bianconi2-4/+4
Move WCID tx rate configuration at device bootstrap since the related register are always set to 0 Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x0: init: use mt76x02_mac_shared_key_setup in mt76x0_init_hardwareLorenzo Bianconi1-9/+4
Use mt76x02_mac_shared_key_setup utility routine for shared key initialization and remove duplicated code Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x0: phy: use mt76_poll_msec in mt76x0_phy_temp_sensorLorenzo Bianconi1-2/+1
Use mt76_poll_msec utility routine for CORE_R34 register polling instead of mt76_poll in order to allow the hw to complete requested calibration since on slow devices (e.g. mt7620 based boards) calibration takes longer than 2ms Fixes: 66a34c66e0cb ("mt76x0: phy: add phy/vco temperature compensation") Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x0: do not overwrite other MT_BBP(AGC, 8) fieldsStanislaw Gruszka1-3/+1
MT_BBP(AGC, 8) register has values depend on band in mt76x0_bbp_switch_tab, so we should not overwrite other fields than MT_BBP_AGC_GAIN when setting gain. This can fix performance issues when connecting to 2.4GHz AP. Fixes: 4636a2544c3b ("mt76x0: phy: align channel gain logic to mt76x2 one") Acked-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Stanislaw Gruszka <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: add support for reporting tx status with skbFelix Fietkau11-95/+231
MT76x2/MT76x0 has somewhat unreliable tx status reporting, and for that reason the driver currently does not report per-skb tx ack status at all. This breaks things like client idle polling, which relies on the tx ack status of a transmitted nullfunc frame. This patch adds code to report skb-attached tx status if requested by mac80211 or the rate control module. Since tx status is polled from a simple FIFO register, the code needs to account for the possibility of tx status events getting lost. The code keeps a list of skbs for which tx status is required and passes them to mac80211 once tx status has been filled in and the DMA queue is done with it. If a tx status event is not received after one second, the status rates are cleared, and a succesful ACK is indicated to avoid spurious disassoc during assoc or client polling. Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: mt76x02: only override control->sta on sw-encrypted txFelix Fietkau1-1/+3
control->sta is set to NULL early when encryption is turned on for the station and info->control.hw_key is not set. This code is missing a check for the 802.11 header protected flag, otherwise it resets the station for other frames, e.g. client probing frames. Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: mt76x02: skip station tx status for non-sta wcid entriesFelix Fietkau1-1/+1
Fixes a crash that could occur if a frame is sent to a station, but the station's wcid was not used (e.g. for software encrypted mgmt tx) Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: clean up more unused EXPORT_SYMBOLsFelix Fietkau3-10/+1
Make functions static where possible Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x0: pci: add DFS supportLorenzo Bianconi7-33/+49
Introduce dfs support in mt76x0e driver and unlock radar channels Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: move dfs support in mt76x02-lib moduleLorenzo Bianconi8-102/+83
Move mt76x2 DFS support in mt76x02-lib module in order to be reused by mt76x0 driver and unlock DFS frequencies Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: move mt76x02_bss_info_changed in mt76x02-lib moduleLorenzo Bianconi7-92/+48
Unify drv_bss_info_changed mac80211 callback and remove duplicated code in mt76x0 and mt76x2 drivers Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: move tx protection routines in mt76x02-lib moduleLorenzo Bianconi14-171/+54
Move mt76x02_set_rts_threshold and mt76x02_mac_set_tx_protection routines in mt76x02-lib module and remove duplicated code in mt76x0 and mt76x2 drivers. Remove pci_mac.c and mt76x0/mac.c since now are empty files Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x0: update init vals for MT_TX_PROT registersLorenzo Bianconi1-6/+9
Add missing VHT MT_TX_PROT register init values Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: move mt76x02_set_tx_ackto in mt76x02-lib moduleLorenzo Bianconi7-34/+39
Move mt76x02_set_tx_ackto and mt76x02_set_coverage_class routines in mt76x02-lib module in order to be reused by mt76x0 driver. This is a preliminary patch to unify drv_bss_info_changed mac80211 callback between mt76x0 and mt76x2 drivers Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76x0: pci: enable AP supportLorenzo Bianconi4-39/+32
Add missing mac80211 callbacks to mt76x0e_ops data structure and add mt76x02_beacon utility routines in mt76x0_bss_info_changed in order to enable/disable beacon transmission Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: introduce mt76x02_init_beacon_config routineLorenzo Bianconi4-28/+31
Add mt76x02_init_beacon_config utility routine in mt76x02-lib module in order to be reused by mt76x0 driver configuring BSSID registers and remove duplicated code Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: move mt76x02_sta_ps in mt76x02-lib moduleLorenzo Bianconi6-14/+15
Move mt76x02_sta_ps utility routine in mt76x02_util.c in order to be reused by mt76x0 driver adding AP support Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: move mt76x02_get_txpower in mt76x02_util.cLorenzo Bianconi6-14/+24
Move mt76x02_get_txpower utility routine in mt76x02-lib module in order to be reused by mt76x0 and mt76x2u drivers Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
2018-11-30mt76: move mt76x02_sw_scan and mt76x02_sw_scan_complete in mt76x02-lib moduleLorenzo Bianconi8-66/+34
Move mt76x02_sw_scan and mt76x02_sw_scan_complete utility routines in mt76x02_util.c in order to be reused by mt76x0 and mt76x2u drivers and remove duplicated code Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
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