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path: root/drivers/net/wireless/mediatek/mt76/mac80211.c
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2020-09-24mt76: mt7663s: introduce sdio tx aggregationLorenzo Bianconi
Introduce sdio tx aggregation to reduce bus transaction ands improve tx throughput. For the moment the skb are copied in a dedicated buffer since mmc APIs do not support sg table for zero-copy. Since skb data are already copied in xmit_buff[], avoid linearization in ma80211 layer. Relying on tx aggregation, we improve tx tpt of ~65%. Tested-by: Sean Wang <sean.wang@mediatek.com> Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-09-24mt76: remove retry_q from struct mt76_txq and related codeFelix Fietkau
Since the switch to using AQL by default, mtxq->retry_q is never filled anymore Remove it to get rid of a few more unnecessary cycles in the tx path Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-09-24mt76: move txwi handling code to dma.c, since it is mmio specificFelix Fietkau
This way we can make some functions static Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-09-24mt76: convert from tx tasklet to tx worker threadFelix Fietkau
This improves performance by allowing the scheduler to move the tx scheduling work to idle CPUs. Since tx scheduling work is very latency sensitive and kept short via AQL, sched_set_fifo_low is used to keep worker priority above normal tasks Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-09-24mt76: remove struct mt76_sw_queueFelix Fietkau
All members except for the struct mt76_queue pointer have been removed Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-09-24mt76: mt7915: add Tx A-MSDU offloading supportRyder Lee
This disables the software A-MSDU aggregation in mac80211 and enables hardware offloading Suggested-by: Yiwei Chung <yiwei.chung@mediatek.com> Suggested-by: YF Luo <yf.luo@mediatek.com> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Co-developed-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-08-27mac80211: rename csa counters to countdown countersJohn Crispin
We want to reuse the functions and structs for other counters such as BSS color change. Rename them to more generic names. Signed-off-by: John Crispin <john@phrozen.org> Link: https://lore.kernel.org/r/20200811080107.3615705-2-john@phrozen.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-21mt76: introduce mt76_sdio moduleSean Wang
Introduce mt76_sdio module as common layer to add mt7663s support Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-07-21mt76: mt7615: wake device in mt7615_update_channel before access regmapLorenzo Bianconi
Introduce mt7615_update_survey utility routine in order to compute survey stats without waking up the device since it runs holding mt76 lock. Run mt7615_pm_wake directly in mt7615_update_channel since it can run with mt76.mutex held if called by mac80211 Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-07-21mt76: move mt76 workqueue in common codeLorenzo Bianconi
Move mt76 workqueue from usb to common code in order to be reused adding low-power support for mt7663 chipset Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-07-21mt76: add API for testmode supportFelix Fietkau
This can be used for calibration in the manufacturing process. It supports sending a configurable number of packets with a specific rate and configurable tx power levels / antenna settings. It also supports receiving packets and showing some statistics, including packet counters and detailed RSSI information. It will only be compiled in if CONFIG_NL80211_TESTMODE is enabled Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-07-21mt76: add U-APSD support on AP sideLorenzo Bianconi
Introduce U-APSD support in mt76 driver for AP interface Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-07-21mt76: allow more channels, allowed in ETSI domainMarkus Theil
While looking at the ETSI regulatory domain definitions and a patch, which allows more channels for ath10k, I also checked the channels allowed for mt76. ETSI regulations would possibly allow to add channels 32, 68, 96, 144, 169 and 173. IEEE 802.11-2016 defines no operating class for channels 32, 68 and 96. This leaves us channels 144, 169 and 173, which are included in this patch. I tested 169 and 173 with a mt76 based USB dongle (AVM AC 860) and they worked fine. If I saw that right, these channels are also covered by register definitions inside the driver. Channel 144 should also work, but gets disabled by the kernel as of now. Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-05-13mt76: enable p2p supportLorenzo Bianconi
Introduce p2p-go/p2p-client suppor to mt76 driver Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-05-12mt76: set runtime stream caps by mt76_phyRyder Lee
This patch can support concurrent dual-band operation. Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-05-12mt76: add Rx stats support for radiotapRyder Lee
HE deivces need to add Rx radiotap header. Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-05-12mt76: add support for HE RX rate reportingRyder Lee
Add support for encoding and reporting HE RX rates. Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-05-12mt76: enable TDLS supportLorenzo Bianconi
Enable mac80211 TDLS support by default. Disable TDLS hw filtering for mt7615 devices Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-05-12mt76: fix A-MPDU density handlingFelix Fietkau
The hardware requirements for A-MPDU density are entirely on the tx side, not the rx side. Because of that, the IE value should stay at 0 and the minimum value should instead be enforced in WTBL/TXWI MT7615 has no restrictions here Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-05-12mt76: remove PS_NULLFUNC_STACK capabilityLorenzo Bianconi
remove IEEE80211_HW_PS_NULLFUNC_STACK capability from mt76_phy_init routine since 802.11 ps is not currently supported by any devices and it will conflict with mt7663 ps fw support Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: Introduce mt76_mcu data structureLorenzo Bianconi
Introduce mt76_mcu data structure to contain common fields between mt76u_mcu and mt76e_mcu. Initialize mcu common fields in mt76_alloc_device(). Rely on mt76_mcu in mt76_mcu_rx_event and in mt76_mcu_get_response in order to reuse them in usb code Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: do not set HOST_BROADCAST_PS_BUFFERING for mt7615Felix Fietkau
mt7615 handles powersave buffering in firmware Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: fix rounding issues on converting per-chain and combined txpowerFelix Fietkau
Unify code converting between the different txpower values. Always add/remove the combined txpower delta before dividing half-dB values. Also fix the combined txpower delta values. The correct half-dB delta for 3 chains is 9, not 8. Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: avoid extra RCU synchronization on station removalFelix Fietkau
Use sta_pre_rcu_remove callback to clear wcid pointer earlier Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: enable Airtime Queue Limit supportFelix Fietkau
It is supported by all drivers Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: rely on mac80211 utility routines to compute airtimeLorenzo Bianconi
Rely on mac80211 airitme utility routines and remove mt76 duplicated code to estimate tx/rx airtime Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: move WIPHY_FLAG_HAS_CHANNEL_SWITCH in mt76_phy_initLorenzo Bianconi
Move WIPHY_FLAG_HAS_CHANNEL_SWITCH in mt76-core module since now all drivers support Channel Switch Announcement Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: mt7615: measure channel noise and report it via surveyFelix Fietkau
Read measurements every 100 ms and build a simple moving average Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: do not overwrite max_tx_fragments if it has been setShayne Chen
Prevent the overwriting of max_tx_fragments if it has already been set in chip-specific init routine. Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: add ext_phy field to struct mt76_wcidFelix Fietkau
Will be used to determine the phy from within the driver Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: add function for allocating an extra wiphyFelix Fietkau
Unlike the core phy, this will have extra allocated memory for a driver private struct. Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: move txpower and antenna mask to struct mt76_phyFelix Fietkau
Adds multiple wiphy support to mt76_get_txpower Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: move state from struct mt76_dev to mt76_phyFelix Fietkau
Allows keeping per-wiphy state separate Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: keep a set of software tx queues per phyFelix Fietkau
Allows tracking tx scheduling separately per phy Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: move channel state to struct mt76_phyFelix Fietkau
Add support for an extra wiphy in mt76_set_channel and mt76_get_survey This is preparation for supporting multiple wiphys per device to support the concurrent dual-band feature of MT7615D Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: add support for an extra wiphy in mt76_sta_state()Felix Fietkau
This is preparation for supporting multiple wiphys per device to support the concurrent dual-band feature of MT7615D Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: add support for an extra wiphy in the rx pathFelix Fietkau
This is preparation for supporting multiple wiphys per device to support the concurrent dual-band feature of MT7615D Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: introduce struct mt76_phyFelix Fietkau
This is preparation for supporting multiple wiphys per device to support the concurrent dual-band feature of MT7615D On the first wiphy, hw->priv will point to struct mt76_dev, which contains a struct mt76_phy at the start. For the secondary wiphy, hw->priv will point to a mt76_phy encapsulated in a driver specific struct To simplify access to struct mt76_phy members from drivers, the driver specific device struct is changed to add a union of struct mt76_dev and struct mt76_phy as the first element Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: move initialization of some struct members to mt76_alloc_deviceFelix Fietkau
Reduces duplication and prepares for further rework Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-12-18mt76: fix LED link time failureArnd Bergmann
The mt76_led_cleanup() function is called unconditionally, which leads to a link error when CONFIG_LEDS is a loadable module or disabled but mt76 is built-in: drivers/net/wireless/mediatek/mt76/mac80211.o: In function `mt76_unregister_device': mac80211.c:(.text+0x2ac): undefined reference to `led_classdev_unregister' Use the same trick that is guarding the registration, using an IS_ENABLED() check for the CONFIG_MT76_LEDS symbol that indicates whether LEDs can be used or not. Fixes: 36f7e2b2bb1d ("mt76: do not use devm API for led classdev") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-20mt76: move mt76_get_antenna in mt76_core moduleLorenzo Bianconi
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>
2019-11-20mt76: move interface_modes definition in mt76_core moduleLorenzo Bianconi
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>
2019-11-20mt76: move SUPPORTS_REORDERING_BUFFER hw property in mt76_register_deviceLorenzo Bianconi
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>
2019-11-20mt76: add sanity check for a-mpdu rx wcid indexFelix Fietkau
Avoid dereferencing invalid ids Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-11-20mt76: refactor cc_lock locking schemeLorenzo Bianconi
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>
2019-11-20mt76: do not use devm API for led classdevFelix Fietkau
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>
2019-11-20mt76: enable airtime fairnessFelix Fietkau
It is supported by all hardware drivers now Signed-off-by: Felix Fietkau <nbd@nbd.name> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
2019-11-20mt76: mt7615: report tx_time, bss_rx and busy time to mac80211Lorenzo Bianconi
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>
2019-11-20mt76: unify channel survey update codeFelix Fietkau
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>
2019-11-20mt76: mt7603: track tx airtime for airtime fairness and surveyFelix Fietkau
Poll per-station hardware counters after tx status events Signed-off-by: Felix Fietkau <nbd@nbd.name>
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