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path: root/drivers/net/wireless/mediatek
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* mt76: fix fix ampdu lockingMarkus Theil2019-11-213-6/+12
| | | | | | | | | The current ampdu locking code does not unlock its mutex in the early return case. This patch fixes it. Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de> Acked-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
* mt76: mt76u: fix endpoint definition orderLorenzo Bianconi2019-11-201-1/+1
| | | | | | | | Even if they are not currently used fix BK/BE endpoint definition order. Fixes: b40b15e1521f ("mt76: add usb support to mt76 layer") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt7615: read {tx,rx} mask from eepromLorenzo Bianconi2019-11-204-2/+23
| | | | | | | | Parse configured {tx,rx} mask from eeprom data instead of just setting it to four tx-rx streams Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: move mt76_get_antenna in mt76_core moduleLorenzo Bianconi2019-11-208-14/+20
| | | | | | | | | Move mt76_get_antenna in mac80211.c in order to be reused by all drivers. Initialize .get_antenna function pointer for mt76x0, mt7603, mt7615 and mt76x2u drivers Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: fix possible out-of-bound access in mt7615_fill_txs/mt7603_fill_txsLorenzo Bianconi2019-11-202-2/+6
| | | | | | | | | | Fix possible out-of-bound access of status rates array in mt7615_fill_txs/mt7603_fill_txs routines Fixes: c5211e997eca ("mt76: mt7603: rework and fix tx status reporting") Fixes: 4af81f02b49c ("mt76: mt7615: sync with mt7603 rate control changes") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* Revert "mt76: mt76x0e: don't use hw encryption for MT7630E"Stanislaw Gruszka2019-11-201-14/+1
| | | | | | | | | | | | | | | | | This reverts commit 34b0e9b767bfa09ae233ca0d6ceb299bf2e24600. Since commit 7bd0650be63c ("mt76: dma: fix buffer unmap with non-linear skbs") is no longer necessary to disable HW encryption for MT7630E. Disabling HW encryption helped previously because somehow fragmented skb's are not created if mac80211 encrypt frames, so buffer unmap bug of non-linear skbs was not triggered. Now since this bug is properly fixed by commit 7bd0650be63c ("mt76: dma: fix buffer unmap with non-linear skbs") , we can enable HW encryption back. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt7615: disable radar pattern detector during scanningLorenzo Bianconi2019-11-201-2/+4
| | | | | | | | Set switch_reason to CH_SWITCH_SCAN_BYPASS_DPD during frequency scanning in order to disable radar pattern detector Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: move interface_modes definition in mt76_core moduleLorenzo Bianconi2019-11-204-24/+7
| | | | | | | | | Move interface modes declaration in common code since now mt76 chipsets support all modes (NL80211_IFTYPE_STATION, NL80211_IFTYPE_AP, NL80211_IFTYPE_MESH_POINT and NL80211_IFTYPE_ADHOC) Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt7615: add ibss supportLorenzo Bianconi2019-11-203-0/+15
| | | | | | | | Enable IFTYPE_ADHOC support on 7615 devices. The feature has been tested using a mt76x2 device as wireless peer. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: move SUPPORTS_REORDERING_BUFFER hw property in mt76_register_deviceLorenzo Bianconi2019-11-204-3/+1
| | | | | | | | | Move SUPPORTS_REORDERING_BUFFER hw property configuration from chip specific code to mt76_register_device since it is supported by all mt76 drivers Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: use mt76_dev in mt76_is_{mmio,usb}Lorenzo Bianconi2019-11-206-15/+15
| | | | | | | | | Convert mt76_is_mmio and mt76_is_usb to rely on mt76_dev instead of mt76x02_dev since this is a property not strictly related to hw chipset and it will be more reusable Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: Remove set but not used variable 'idx'zhengbin2019-11-201-2/+1
| | | | | | | | | | | | | | Fixes gcc '-Wunused-but-set-variable' warning: drivers/net/wireless/mediatek/mt76/dma.c: In function mt76_dma_rx_fill: drivers/net/wireless/mediatek/mt76/dma.c:377:6: warning: variable idx set but not used [-Wunused-but-set-variable] It is not used since commit 17f1de56df05 ("mt76: add common code shared between multiple chipsets") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: zhengbin <zhengbin13@huawei.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt76u: rely on a dedicated stats workqueueLorenzo Bianconi2019-11-204-10/+25
| | | | | | | | | | rate controller and throughput are very sensitive to tx status timing. In order to improve performances when the system is heavily loaded, substitute stat_work delayed_work with a regular work_struct and create a mt76u dedicated workqueue for tx status reporting Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt76u: rely on usb_interface instead of usb_devLorenzo Bianconi2019-11-204-6/+13
| | | | | | | | | | | usb drivers are supposed to communicate using usb_interface instead mt76x{0,2}u is now registering through usb_device. Fix it by passing usb_intf device to mt76_alloc_device routine. Fixes: 112f980ac8926 ("mt76usb: use usb_dev private data") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Tested-By: Zero_Chaos <sidhayn@gmail.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt7615: remove unneeded semicolonYueHaibing2019-11-202-2/+2
| | | | | | | | remove unneeded semicolon. This is detected by coccinelle. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt76x0: remove 350ms delay in mt76x0_phy_calibrateLorenzo Bianconi2019-11-201-1/+0
| | | | | | | | | Since mt76x0 does not save the phy calibration data it is not necessary to wait 350ms in mt76x0_phy_calibrate Tested-by: Sid Hayn <sidhayn@gmail.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt76x02u: update ewma pkt len in mt76x02u_tx_prepare_skbLorenzo Bianconi2019-11-201-0/+6
| | | | | | | | | Update ewma packet length in mt76x02u_tx_prepare_skb as it is done for pci counterpart in order to properly estimate tx time on current channel Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: remove obsolete .add_buf() from struct mt76_queue_opsFelix Fietkau2019-11-201-4/+0
| | | | | | It hasn't been used in a while Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: add sanity check for a-mpdu rx wcid indexFelix Fietkau2019-11-201-1/+1
| | | | | | Avoid dereferencing invalid ids Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: refactor cc_lock locking schemeLorenzo Bianconi2019-11-202-13/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Read busy counters not holding cc_lock spinlock since usb read can't be performed in interrupt context. Move cc_active and cc_rx counters out of cc_lock since they are not modified in interrupt context. Grab cc_lock updating cur_cc_bss_rx in mt76_airtime_report and do not hold rx_lock in mt76_update_survey. Moreover grab mt76 mutex in mt76_get_survey before running mt76_update_survey. This patch fixes the following 'schedule while atomic' [ 291.790866] BUG: scheduling while atomic: iw/2161/0x00000202 [ 291.791002] Preemption disabled at: [ 291.791007] [<0000000000000000>] 0x0 [ 291.791015] CPU: 0 PID: 2161 Comm: iw Tainted: G W 5.4.= 0-rc2-3-ARCH-00104-g9e208aa06c21 #1 [ 291.791017] Hardware name: LENOVO 2349QM6/2349QM6, BIOS G1ETC2WW (2.82=) 08/07/2019 [ 291.791019] Call Trace: [ 291.791042] dump_stack+0x5c/0x80 [ 291.791049] __schedule_bug.cold+0x8e/0x9b [ 291.791055] __schedule+0x5f8/0x770 [ 291.791062] schedule+0x43/0xd0 [ 291.791068] schedule_preempt_disabled+0x14/0x20 [ 291.791074] __mutex_lock.isra.0+0x18a/0x530 [ 291.791099] mt76u_rr+0x1f/0x40 [mt76_usb] [ 291.791113] mt76x02_update_channel+0x22/0x40 [mt76x02_lib] [ 291.791122] mt76_update_survey+0x42/0xe0 [mt76] [ 291.791129] mt76_get_survey+0x2f/0x1b0 [mt76] [ 291.791170] ieee80211_dump_survey+0x5e/0x140 [mac80211] [ 291.791217] nl80211_dump_survey+0x13c/0x2f0 [cfg80211] [ 291.791222] ? __kmalloc_reserve.isra.0+0x2d/0x70 [ 291.791225] ? __alloc_skb+0x96/0x1d0 [ 291.791229] netlink_dump+0x17b/0x370 [ 291.791247] __netlink_dump_start+0x16f/0x1e0 [ 291.791253] genl_family_rcv_msg+0x396/0x410 [ 291.791290] ? nl80211_prepare_wdev_dump+0x1b0/0x1b0 [cfg80211] [ 291.791297] ? _raw_spin_unlock_irqrestore+0x20/0x40 [ 291.791312] ? __wake_up_common_lock+0x8a/0xc0 [ 291.791316] genl_rcv_msg+0x47/0x90 [ 291.791320] ? genl_family_rcv_msg+0x410/0x410 [ 291.791323] netlink_rcv_skb+0x49/0x110 [ 291.791329] genl_rcv+0x24/0x40 [ 291.791333] netlink_unicast+0x171/0x200 [ 291.791340] netlink_sendmsg+0x208/0x3d0 [ 291.791358] sock_sendmsg+0x5e/0x60 [ 291.791361] ___sys_sendmsg+0x2ae/0x330 [ 291.791368] ? filemap_map_pages+0x272/0x390 [ 291.791374] ? _raw_spin_unlock+0x16/0x30 [ 291.791379] ? __handle_mm_fault+0x112f/0x1390 [ 291.791388] __sys_sendmsg+0x59/0xa0 [ 291.791396] do_syscall_64+0x5b/0x1a0 [ 291.791400] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 291.791404] RIP: 0033:0x7f5d0c7f37b7 [ 291.791418] Code: 64 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 0= 0 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05= <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 [ 291.791421] RSP: 002b:00007ffe8b5d0538 EFLAGS: 00000246 ORIG_RAX: 0000= 00000000002e [ 291.791426] RAX: ffffffffffffffda RBX: 000055a038e6c390 RCX: 00007f5d0= c7f37b7 [ 291.791430] RDX: 0000000000000000 RSI: 00007ffe8b5d0570 RDI: 000000000= 0000003 [ 291.791434] RBP: 000055a038e718c0 R08: 000055a038e6c02a R09: 000000000= 0000002 [ 291.791438] R10: 000055a03808cb00 R11: 0000000000000246 R12: 000055a03= 8e71780 [ 291.791440] R13: 00007ffe8b5d0570 R14: 000055a038e717d0 R15: 000055a03= 8e718c0 [ 291.791480] NOHZ: local_softirq_pending 202 Fixes: 168aea24f4bb ("mt76: mt76x02u: enable survey support") Tested-by: Markus Theil <markus.theil@tu-ilmenau.de> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt76x0: eeprom: add support for MAC address from OFPawel Dembicki2019-11-201-0/+1
| | | | | | | | | | | | | | mt76x0e driver only supports MAC addresses from calibration data eeprom. Many routers however do not have a valid stock address set in this field. This patch makes it possible to take a MAC address from OF (e.g. from mtd). Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com> [adjusted for kernel submission] Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: avoid enabling interrupt if NAPI poll is still pendingFelix Fietkau2019-11-201-3/+1
| | | | | | | if napi_complete() returns false, it means that polling is still pending. Interrupts should not fire until the polling is no longer scheduled Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: fix aggregation stop issueFelix Fietkau2019-11-201-4/+6
| | | | | | | Cancel the workqueue after the tid has been cleaned up, in order to avoid a possible rescheduling from within the work function. Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: drop rcu read lock in mt76_rx_aggr_stopFelix Fietkau2019-11-201-7/+3
| | | | | | | | | A rcu read locked section is not allowed to sleep, and the rcu lock here isn't actually necessary, because we're holding dev->mutex. Fixes an issue when the tid work item is still running while freeing a station or stopping the aggregation session Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: add missing locking around ampdu actionFelix Fietkau2019-11-203-0/+6
| | | | | | | This is needed primarily to avoid races in dealing with rx aggregation related data structures Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: do not use devm API for led classdevFelix Fietkau2019-11-201-1/+10
| | | | | | | | With the devm API, the unregister happens after the device cleanup is done, after which the struct mt76_dev which contains the led_cdev has already been freed. This leads to a use-after-free bug that can crash the system. Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: enable airtime fairnessFelix Fietkau2019-11-201-0/+1
| | | | | | | It is supported by all hardware drivers now Signed-off-by: Felix Fietkau <nbd@nbd.name> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
* mt76: mt7615: track tx/rx airtime for airtime fairnessLorenzo Bianconi2019-11-206-3/+137
| | | | | | | | | Poll per-station hardware counters available in WTBL after tx/rx status events in order to report tx/rx airtime to mac80211 layer Co-developed-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt7615: introduce mt7615_mac_wtbl_update routineLorenzo Bianconi2019-11-202-5/+12
| | | | | | | | Introduce mt7615_mac_wtbl_update utility routine in order to update WTBL update register Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt7615: fix survey channel busy timeFelix Fietkau2019-11-202-4/+8
| | | | | | | | Like on mt7603, MIB status register 16 tracks CCA time, but does not include tx time. Switch to status register 9 to includ NAV and tx time as well. Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt7615: report tx_time, bss_rx and busy time to mac80211Lorenzo Bianconi2019-11-207-4/+45
| | | | | | | | | Report tx time/rx time and obss time from hw mib counters to fill survey info requested by mac80211 Co-developed-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt76x02: track approximate tx airtime for airtime fairness and surveyFelix Fietkau2019-11-2012-9/+116
| | | | | | | Estimate by calculating duration for EWMA packet size + estimated A-MPDU length on tx status events Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt76x02: move MT_CH_TIME_CFG init to mt76x02_mac_cc_resetFelix Fietkau2019-11-205-32/+9
| | | | | | Reduces code duplication and adds missing bits for USB variants Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: unify channel survey update codeFelix Fietkau2019-11-208-52/+33
| | | | | | | | Host time is used to calculate the channel active time on mt7603 and mt7615. Use the same on mt76x02 and move the lock to core code to get rid of some duplicated code. Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt7603: switch to a different counter for survey busy timeFelix Fietkau2019-11-201-1/+1
| | | | | | | MT_MIB_STAT_PSCCA only counts rx CCA busy time, which does not include tx time. MT_MIB_STAT_CCA counts full busy time, including Rx, Tx and NAV Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt7603: track tx airtime for airtime fairness and surveyFelix Fietkau2019-11-207-1/+116
| | | | | | Poll per-station hardware counters after tx status events Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: track rx airtime for airtime fairness and surveyFelix Fietkau2019-11-2012-37/+434
| | | | | | | | | Report total rx airtime for valid stations as BSS rx time in survey mt7615 is left out for now, it will be supported later by reading hardware counters instead of calculating airtime in software Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: store current channel survey_state in struct mt76_devFelix Fietkau2019-11-205-23/+23
| | | | | | | Move mt76_channel_state() from mt76.h to mac80211.c Preparation for updating channel state from more places in the drivers/core Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: rename mt76_driver_ops txwi_flags to drv_flags and include tx aligned4Felix Fietkau2019-11-205-8/+8
| | | | | | This reduces the struct size and is useful for adding more flags later Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: report rx a-mpdu subframe statusFelix Fietkau2019-11-207-0/+50
| | | | | | | This can be used in monitor mode to figure out which subframes were sent as part of which A-MPDU Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt7603: remove q_rx field from struct mt7603_devFelix Fietkau2019-11-201-2/+0
| | | | | | It is no longer used Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt7603: collect aggregation statsLorenzo Bianconi2019-11-205-0/+61
| | | | | | | | Introduce ampdu_stat entry in mt7603 debugfs in order to dump 802.11 aggr cumulative statistics Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt7615: collect aggregation statsLorenzo Bianconi2019-11-205-0/+66
| | | | | | | | Introduce ampdu_stat entry in mt7615 debugfs in order to dump 802.11 aggr cumulative statistics Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: move aggr_stats array in mt76_devLorenzo Bianconi2019-11-204-6/+7
| | | | | | | | Move aggr_stats array from mt76x02_dev to mt76_dev in order to be reused adding aggregation stats for mt7603/mt7615 drivers Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt7615: add queue entry in debugfsLorenzo Bianconi2019-11-202-0/+72
| | | | | | | | Introduce mt7615_queues_read routine to dump hw queue related info. Add hw ac queues statistics in mt7615 debugfs Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: move queue debugfs entry to driver specific codeLorenzo Bianconi2019-11-204-3/+7
| | | | | | | | Move queue debugfs entry to driver specific code since mt7615 devices rely on a different queue layout Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt76x02u: move mt76x02u_mac_start in mt76x02-usb moduleLorenzo Bianconi2019-11-208-37/+25
| | | | | | | | Unify mt76x02u_mac_start between mt76x2u and mt76x0u since the code is shared between both drivers Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt76x0u: reset counter starting the deviceLorenzo Bianconi2019-11-201-2/+1
| | | | | | | | Remove mt76x02_mac_reset_counters from mt76x0_init_hardware since it will be run starting the device Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt76x2: move mt76x02_mac_reset_counters in mt76x02_mac_startLorenzo Bianconi2019-11-204-16/+5
| | | | | | | | Move mt76x02_mac_reset_counters in mt76x02_mac_start and get rid of mt76x2_mac_start since it is just a wrapper for mt76x02_mac_start Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt76x02: move mac_reset_counter in mt76x02_lib moduleLorenzo Bianconi2019-11-205-31/+25
| | | | | | | | Unify mac_reset_counter routine and move it in mt76x02_lib module since it is shared by all mt76x02 drivers (pci/usb) Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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