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path: root/drivers/net/wireless/mediatek/mt76
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2019-01-11mt76: dma: avoid indirect call in mt76_dma_tx_queue_skbLorenzo Bianconi1-1/+1
Call mt76_dma_add_buf routine directly in mt76_dma_tx_queue_skb and avoid indirect call if not necessary Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76: make const array 'data' static, shrinks object sizeColin Ian King1-1/+1
Don't populate the const array 'data' on the stack but instead make it static. Makes the object code smaller by 78 bytes: Before: text data bss dec hex filename 5438 1080 0 6518 1976 mediatek/mt76/mt76x2/usb_mcu.o After: text data bss dec hex filename 5296 1144 0 6440 1928 mediatek/mt76/mt76x2/usb_mcu.o (gcc version 8.2.0 x86_64) Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76: mmio: introduce mt76x02_check_tx_hang watchdogLorenzo Bianconi8-1/+140
Port mt76x02_check_tx_hang watchdog from vendor driver in order to perform a device reset when tx mac/dma logic hangs. Tx mac/dma stuck has been observed when the device is heavy loaded or in a noisy environment. Moreover introduce wdt delayed work in order to run tx_hang watchdog. For the moment run mt76x02_check_tx_hang watchdog just on mt76x2 devices since the issue has not been observed on mt76x0 driver yet Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76: dma: do not build skb if reported len does not fit in buf_sizeLorenzo Bianconi1-8/+7
Precompute data length in order to avoid to allocate the related skb data structure if reported length does not fit in queue buf_size Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76: mac: minor optimizations in mt76x02_mac_tx_rate_valLorenzo Bianconi1-4/+2
Do not set bw variable to zero for legacy rates since it is already initialized to zero. Moreover set nss to 1 just for legacy rates since nss will be properly set for VHT/HT rates Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76: add energy detect CCA support to mt76x{0,2}e driversLorenzo Bianconi9-0/+111
Ported from the reference driver. Should fix compliance with ETSI regulatories on preventing transmission while energy detect values are above the threshold. The code has been tested using an ath9k device running tx99 as noise generator Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76x2: init: set default value for MT_TX_LINK_CFGLorenzo Bianconi1-0/+1
Update default value for MT_TX_LINK_CFG according to vendor driver Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76: dfs: run mt76x02_dfs_set_domain atomicallyLorenzo Bianconi1-0/+2
Grab mt76_dev mutex in mt76x02_dfs_set_domain since it runs concurrently with mt76x{0,2}_set_channel routines Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76x2: add static qualifier to mt76x2_init_hardwareLorenzo Bianconi2-2/+1
Add static qualifier to mt76x2_init_hardware routine since it is used just in pci_init.c Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76x0: configure MT_VHT_HT_FBK_CFG1Stanislaw Gruszka1-0/+1
Configure MT_VHT_HT_FBK_CFG1 values similar like vendor driver. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76x02: set protection according to ht operation elementStanislaw Gruszka4-0/+90
Configure protection based on information that are provided to us either by remote AP or by hostapd via HT operation IE. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76x02: fixup MT_PROT_RATE_* definesStanislaw Gruszka1-3/+3
On new mt76 chips, phy mode is configured by last 3 bits of rate value. Hence OFDM bit is marked by 0x2000 instead of 0x4000. Acked-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76x02: do not set protection on set_rts_threshold callbackStanislaw Gruszka3-17/+3
Use set_rts_threshold calback to enable/disable threshold only for legacy traffic. Protection for HT and VHT traffic is defined by HT operation element and it's provided by remote AP or by hostapd. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76x0: pci: fix ACS supportLorenzo Bianconi1-0/+8
Fix Automatic Channel Selection (ACS) support in mt76x0e driver configuring properly MT_CH_TIME_CFG register Fixes: 6250318694ca ("mt76x0: pci: add get_survey support") Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76: usb: avoid queue/status spinlocks while passing tx status to mac80211Lorenzo Bianconi1-4/+6
As already done for pcie code in commit 79d1c94c9c78 ("mt76: avoid queue/status spinlocks while passing tx status to mac80211") make sure that no tx related spinlocks are taken during the ieee80211_tx_status call Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76: mac: run mt76x02_mac_work routine atomicallyLorenzo Bianconi1-0/+4
Grab mt76_dev mutex in mt76x02_mac_work handler since it runs concurrently with mt76x{0,2}_set_channel routines Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76: fix typo in mt76x02_check_mac_err routineLorenzo Bianconi1-2/+2
Reconfigure properly MT_MAC_SYS_CTRL register after mac sw-reset in mt76x02_check_mac_err routine Fixes: 73556561ab9f ("mt76x0: use mt76x02_mac_work as stats handler") Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76: Add missing include of linux/module.hHauke Mehrtens1-0/+1
MODULE_FIRMWARE() is used in usb_mcu.c and provided by linux/module.h, but this header file is not directly included. This causes problems in backports with some kernel versions. Add the missing include. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76: usb: do not build the skb if reported len does not fit in buf_sizeLorenzo Bianconi1-6/+4
Precompute data length in order to avoid to allocate the related skb data structure if reported length does not fit in queue buf_size Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76: dma: remove napi from mt76_dma_rx_fill signatureLorenzo Bianconi1-4/+4
Remove napi from mt76_dma_rx_fill routine signature since it is a leftover of a previous implementation and it is no longer used Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76: request tx status for powersave released EOSP packetFelix Fietkau1-1/+2
Allows mac80211 to keep track of the service period Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76: throttle transmission of buffered multicast packetsFelix Fietkau1-2/+3
Avoids drowning out regular transmissions Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11mt76: add size check for additional rx fragmentsFelix Fietkau1-0/+8
So far the code only validates the buffer size of the first skb. Extend this check to cover additional fragments as well, in case the size is corrupted during a DMA reset. Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-12-20Merge tag 'wireless-drivers-next-for-davem-2018-12-20' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-nextDavid S. Miller60-3191/+2781
Kalle Valo says: ==================== wireless-drivers-next patches for 4.21 Last set of patches for 4.21. mt76 is still in very active development and having some refactoring as well as new features. But also other drivers got few new features and fixes. Major changes: ath10k * add amsdu support for QCA6174 monitor mode * report tx rate using the new ieee80211_tx_rate_update() API * wcn3990 support is not experimental anymore iwlwifi * support for FW version 43 for 9000 and 22000 series brcmfmac * add support for CYW43012 SDIO chipset * add the raw 4354 PCIe device ID for unprogrammed Cypress boards mwifiex * add NL80211_STA_INFO_RX_BITRATE support mt76 * use the same firmware for mt76x2e and mt76x2u * mt76x0e survey support * more unification between mt76x2 and mt76x0 * mt76x0e AP mode support * mt76x0e DFS support * rework and fix tx status handling for mt76x0 and mt76x2 ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-13mt76: fix potential NULL pointer dereference in mt76_stop_tx_queuesLorenzo Bianconi1-1/+6
Starting from mac80211 commit adf8ed01e4fd ("mac80211: add an optional TXQ for other PS-buffered frames") and commit 0eeb2b674f05 ("mac80211: add an option for station management TXQ") a new per-sta queue has been introduced for bufferable management frames. sta->txq[IEEE80211_NUM_TIDS] is initialized just if the driver reports the following hw flags: - IEEE80211_HW_STA_MMPDU_TXQ - IEEE80211_HW_BUFF_MMPDU_TXQ This can produce a NULL pointer dereference in mt76_stop_tx_queues since mt76 iterates on all available sta tx queues assuming they are initialized by mac80211. This issue has been spotted analyzing the code (it has not triggered any crash yet) Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-12-13Merge tag 'mt76-for-kvalo-2018-11-30' of https://github.com/nbd168/wirelessKalle Valo60-3191/+2781
first batch of mt76 patches for 4.21 * use the same firmware for mt76x2e and mt76x2u * mt76x2 fixes * mt76x0 fixes * mt76x0e survey support * more unification between mt76x2 and mt76x0 * mt76x0e AP mode support * mt76x0e DFS support * rework and fix tx status handling for mt76x0 and mt76x2 kvalo: fixed a conflict in drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c and a build problem in drivers/net/wireless/mediatek/mt76/mt76x02_util.c
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 <nbd@nbd.name> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
2018-11-30mt76: mt76x02: remove mt76x02_txq_initFelix Fietkau3-28/+15
Open-coding it simplifies the code Signed-off-by: Felix Fietkau <nbd@nbd.name>
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 <nbd@nbd.name>
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 <nbd@nbd.name>
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 <nbd@nbd.name>
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 <nbd@nbd.name>
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 <nbd@nbd.name>
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 <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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 <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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 <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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 <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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 <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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 <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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 <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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 <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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 <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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 <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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 <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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 <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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 <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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 <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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 <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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 <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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 <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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