Commit Graph
49 Commits
Author SHA1 Message Date
Felix Fietkau 5504bac46a wifi: mt76: mt7603: file buffered frames under the TID reported to mac80211
The PS queue filed redirected frames under the TID taken from the TXD,
while mac80211 was told about the TID taken from the QoS header, or TID 0
for anything that is not a QoS data frame. When the two disagree,
mt7603_release_buffered_frames() skips the frame because it does not
match the requested TIDs, so it stays in the PS queue until the station
wakes up. Buffered MMPDUs hit this whenever they were sent on a
non-zero TID.

Use one TID for both.

Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2026-08-01 17:45:48 +02:00
Felix Fietkau 33f29d2345 wifi: mt76: relicense to BSD-3-Clause-Clear
MediaTek has asked to switch from the ISC license to BSD-3-Clause-Clear,
in order to improve clarity and the legal integrity of the code.

The BSD-3-Clause license includes the "no endorsement" clause, which is
important for protecting the reputation of the original authors and
contributors by preventing unauthorized use of their names for endorsement
purposes.

This clause is absent in the BSD-2-Clause license, which is more permissive
but lacks this specific protection.

This change also cleans up the license of some Kconfig/Makefile files,
which were accidentally marked as GPL.

The GPL 2.0 remains in use on mt76x0, as well as two source files in mt7615
for which the license situation still needs to be clarified.

Signed-off-by: Felix Fietkau <[email protected]>
2025-10-13 11:11:19 +02:00
Breno LeitaoandFelix Fietkau ef2468830f wifi: mt76: un-embedd netdev from mt76_dev
Embedding net_device into structures prohibits the usage of flexible
arrays in the net_device structure. For more details, see the discussion
at [1].

Un-embed the net_devices from struct mt76_dev by converting them
into pointers, and allocating them dynamically. Use the leverage
alloc_netdev_dummy() to allocate the net_device object at
mt76_dma_init().

The free of the device occurs at mt76_dma_cleanup().

Link: https://lore.kernel.org/all/[email protected]/ [1]
Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: Breno Leitao <[email protected]>
Acked-by: Kalle Valo <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
2025-09-04 19:05:35 +02:00
Felix Fietkau 243e572d89 wifi: mt76: add a wrapper for wcid access with validation
Several places use rcu_dereference to get a wcid entry without validating
if the index exceeds the array boundary. Fix this by using a helper function,
which handles validation.

Signed-off-by: Felix Fietkau <[email protected]>
2025-07-04 20:46:06 +02:00
Felix Fietkau 513c131c63 mt76: mt7603: fix mixed declarations and code
Move the qid variable declaration further up

Fixes: b473c0e47f04 ("wifi: mt76: mt7603: fix tx queue of loopback packets")
Signed-off-by: Felix Fietkau <[email protected]>
2024-05-17 13:53:55 +02:00
Felix Fietkau e4de3592c4 wifi: mt76: mt7603: fix tx queue of loopback packets
Use the correct WMM AC queue instead of the MGMT one to fix potential issues
with aggregation sequence number tracking. Drop non-bufferable packets.

Fixes: fca9615f1a43 ("mt76: mt7603: fix up hardware queue index for PS filtered packets")
Signed-off-by: Felix Fietkau <[email protected]>
2024-04-03 11:12:55 +02:00
Lorenzo BianconiandFelix Fietkau 48b0cedbf8 wifi: mt76: introduce wed pointer in mt76_queue
Introduce mtk_wed_device pointer in mt76_queue structure in order to
configure WED chip.
Get rid of dev parameter in Q_READ and Q_WRITE macros.
Introduce wed parameter to the following routine signatures:
- mt76_init_queue
- mt76_init_tx_queue

This is a preliminary patch to introduce WED support for mt7996 since
mt7996 runs two separate WED chips.

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2023-11-17 14:12:32 +01:00
Felix Fietkau ec46d7486a sync with upstream
Signed-off-by: Felix Fietkau <[email protected]>
2022-12-10 13:11:04 +01:00
Sujuan ChenandFelix Fietkau 1361519851 wifi: mt76: add info parameter to rx_skb signature
This is a preliminary patch to introduce WED RX support for mt7915.

Tested-by: Daniel Golle <[email protected]>
Co-developed-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Sujuan Chen <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2022-11-23 13:11:29 +01:00
Felix Fietkau 87a962e060 mt76: mt7915: add Wireless Ethernet Dispatch support
This is used to support hardware flow offloading from Ethernet to WLAN

Signed-off-by: Felix Fietkau <[email protected]>
2022-04-07 11:56:24 +02:00
Ryder LeeandFelix Fietkau e49af7036b mt76: use le32/16_get_bits() whenever possible
Switch to use le32/16_get_bits() to simplfy codes and specify
the size explicitly to avoid potential issues.

Signed-off-by: Ryder Lee <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2022-03-14 15:53:26 +01:00
Lorenzo BianconiandFelix Fietkau 51b3d1a9a2 mt76: dma: add the capability to define a custom rx napi poll routine
Add the capability to define a custom rx napi callback for each driver.
This is a preliminary patch to properly support runtime-pm on rx side

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2021-04-21 13:49:02 +02:00
Felix Fietkau bfa8d5a6a9 mt76: adjust to upstream API for enabling threaded NAPI
Create a second dummy device for tx napi to avoid making it threaded

Signed-off-by: Felix Fietkau <[email protected]>
2021-03-14 17:36:54 +01:00
Lorenzo BianconiandFelix Fietkau 2e217fb9e9 mt76: move tx hw data queues in mt76_phy
Move hw data queues in mt76_phy from mt76_dev since mt7915 supports per
phy hw queues in dbdc mode

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2020-11-12 14:59:29 +01:00
Lorenzo BianconiandFelix Fietkau ccd62467d0 mt76: move mcu queues to mt76_dev q_mcu array
Move mcu queue to a dedicated array q_mcu in mt76_dev structure.
This is a preliminary patch to move data queues in mt76_phy and properly
support dbdc

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2020-11-12 14:59:29 +01:00
Lorenzo BianconiandFelix Fietkau 8932975be0 mt76: introduce mt76_init_mcu_queue utility routine
Introduce mt76_init_mcu_queue utility routine in order to allocate
dedicate q_mcu pointers for mcu hw queues. This is a preliminary patch
to move data queues in mt76_phy and add dbdc support to mt7915 driver

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2020-11-12 14:59:29 +01:00
Lorenzo BianconiandFelix Fietkau 216cf8b285 mt76: dma: rely on mt76_queue in mt76_dma_tx_cleanup signature
This is a preliminary patch to move data queues in mt76_phy and properly
support dbdc

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2020-11-12 14:59:29 +01:00
Lorenzo BianconiandFelix Fietkau c79d18723d mt76: move mt76_init_tx_queue in common code
Move mt76_init_tx_queue in mac80211.c since it is shared by all
drivers.

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2020-11-12 14:59:29 +01:00
Gustavo A. R. SilvaandFelix Fietkau 1ccd31bbe1 mt76: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2020-09-08 23:44:29 +02:00
Felix Fietkau 23529b5e93 mt76: mt7603: tune tx ring size
Stop relying on global tx ring size, reduce size for PS/mgmt queue

Signed-off-by: Felix Fietkau <[email protected]>
2020-08-24 20:59:30 +02:00
Felix Fietkau 3218b914a2 mt76: remove struct mt76_sw_queue
All members except for the struct mt76_queue pointer have been removed

Signed-off-by: Felix Fietkau <[email protected]>
2020-08-24 20:59:30 +02:00
Felix Fietkau 05aa857861 mt76: remove swq from struct mt76_sw_queue
Since txq selection was moved to mac80211, it is no longer used

Signed-off-by: Felix Fietkau <[email protected]>
2020-08-24 20:59:30 +02:00
Felix Fietkau 2f1318a06d mt76: convert from tx tasklet to tx worker thread
This should improve performance by allowing the scheduler to move the tx
scheduling work to idle CPUs

Signed-off-by: Felix Fietkau <[email protected]>
2020-08-22 15:56:57 +02:00
Felix Fietkau 99ce686254 mt76: mt7603: increase dma mcu rx ring size
The ring is used for looping back tx powersave filtered frames, so it could
use some more room, in case more than one aggregate was queued

Signed-off-by: Felix Fietkau <[email protected]>
2020-01-20 12:15:56 +01:00
Felix Fietkau 99d8cd03ed mt76: mt7603: fix input validation issues for powersave-filtered frames
Before extracting the tid out of the packet, check if it was qos-data.
Only accept tid values 0-7
Also, avoid accepting the hardware queue as skb queue mapping, it could
lead to an overrun. Instead, derive the hardware queue from the tid number,
in order to avoid issues with packets being filtered multiple times.
This also fixes a mismatch between hardware and software queue indexes.

Signed-off-by: Felix Fietkau <[email protected]>
2019-12-21 17:02:53 +01:00
Felix Fietkau ee310307ad mt76: mt7603: track tx airtime for airtime fairness and survey
Poll per-station hardware counters after tx status events

Signed-off-by: Felix Fietkau <[email protected]>
2019-09-26 14:59:06 +02:00
Lorenzo BianconiandFelix Fietkau a9d2a28b39 mt76: mt7603: remove unnecessary mcu queue initialization
Remove unnecessary mcu queue initialization in mt7603_dma_init since it
has been already done in mt76_mmio_init

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-08-21 13:02:33 +02:00
Lorenzo BianconiandFelix Fietkau af860c0dec mt76: move mt76_tx_tasklet in mt76 module
Move mt76{15,03}_tx_tasklet in mt76_alloc_device in order to be used as
default tx_tasklet initialization. Remove duplicated code in
mt7603/mt7615 drivers

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-08-21 13:02:33 +02:00
Ryder LeeandFelix Fietkau 8b7bbd0176 mt76: mt7603: fix some checkpatch warnings
This fixes the following checkpatch warnings:

WARNING: Improper SPDX comment style
CHECK: No space is necessary after a cast

Signed-off-by: Ryder Lee <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-08-20 15:21:30 +02:00
Lorenzo BianconiandFelix Fietkau 2cb46830fa mt76: move netif_napi_del in mt76_dma_cleanup
Move netif_napi_del in mt76_dma_cleanup routine since it is done
by all drivers

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-05-11 15:25:58 +02:00
Lorenzo BianconiandFelix Fietkau bce63c453c mt76: mt7603: use napi polling for tx cleanup
This allows tx scheduling and tx cleanup to run concurrently

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-05-11 15:25:58 +02:00
Felix Fietkau 688d708a43 mt76: only schedule txqs from the tx tasklet
Reduces lock contention from the tx path and improves performance

Signed-off-by: Felix Fietkau <[email protected]>
2019-03-14 22:37:30 +01:00
Felix Fietkau 5323005150 mt76: move tx tasklet to struct mt76_dev
Allows it to be scheduled from core code

Signed-off-by: Felix Fietkau <[email protected]>
2019-03-14 22:37:30 +01:00
Lorenzo BianconiandFelix Fietkau 06c917faeb mt76: introduce mt76_sw_queue data structure
Introduce mt76_sw_queue data structure in order to support new
chipsets (e.g. mt7615) that have a shared hardware queue for all traffic
identifiers. mt76_sw_queue will be used to track outstanding packets

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-03-13 12:53:23 +01:00
Felix Fietkau eb1ecc402f mt76: mt7603: notify mac80211 about buffered frames in ps queue
Also fix the size check for filtered powersave frames
Fixes a corner case with waking up clients

Signed-off-by: Felix Fietkau <[email protected]>
2019-03-03 19:21:42 +01:00
Felix Fietkau d13b065957 mt76: mt7603: fix up hardware queue index for PS filtered packets
Make the queue index match the hardware queue on which they get sent out

Signed-off-by: Felix Fietkau <[email protected]>
2019-03-03 19:21:42 +01:00
Lorenzo BianconiandFelix Fietkau 283ebbefde mt76: dma: move mt76x02_init_{tx,rx}_queue in mt76 module
Move mt76x02_init_tx_queue and mt76x02_init_rx_queue in mt76
module in order to be reused adding support for mt7603 driver
and remove duplicated code.
Squash mt76x02_init_tx_queue and mt76x02_init_rx_queue in
mt76_dma_alloc_queue

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-03-01 13:00:31 +01:00
Lorenzo BianconiandFelix Fietkau 11ab62057e mt7603: rely on mt76_tx_queue_skb_raw common routine
Signed-off-by: Lorenzo Bianconi <[email protected]>
2019-02-18 20:39:41 +01:00
Lorenzo BianconiandFelix Fietkau cacc986701 mt7603: rely on mt76_mcu_rx_event routine
Signed-off-by: Lorenzo Bianconi <[email protected]>
2019-02-07 14:50:23 +01:00
Felix Fietkau 8027b5d061 mt7603: remove copyright headers
No longer needed because of SPDX License Identifier

Signed-off-by: Felix Fietkau <[email protected]>
2019-01-31 18:30:30 +01:00
Felix Fietkau ce8cc5d52d mt7603: issue PSE client reset on init
Improves reliability of module reload after tx hangs

Signed-off-by: Felix Fietkau <[email protected]>
2019-01-22 14:09:54 +01:00
Felix Fietkau 2efa389b4c mt7603: limit station power save queue length to 64
Avoid excessive memory use, in case something goes wrong.

Signed-off-by: Felix Fietkau <[email protected]>
2019-01-21 21:02:33 +01:00
Felix Fietkau 3ecb7f8974 mt7603: fix hardware queue assignment
The queues are ordered by priority. BK needs to be the first queue,
followed by BE

Signed-off-by: Felix Fietkau <[email protected]>
2018-11-28 21:11:05 +01:00
Felix Fietkau c09e8a489f mt7603: fix buffering of tx packets for powersave clients
Use PSE registers to loop back any pending tx packets for a client that
just went to sleep back into the MCU rx queue.
Re-queue those packets to the tx queue immediately after a client wakes up.

Signed-off-by: Felix Fietkau <[email protected]>
2018-11-20 16:18:22 +01:00
Felix Fietkau 498d716353 mt7603: fix checkpatch issues
Signed-off-by: Felix Fietkau <[email protected]>
2018-11-06 15:41:37 +01:00
Felix Fietkau d9b5324ecc mt7603: add SPDX license identifiers
Signed-off-by: Felix Fietkau <[email protected]>
2018-11-06 13:53:26 +01:00
Felix Fietkau 0b8b15f97c mt7603: use common mmio mcu struct
Signed-off-by: Felix Fietkau <[email protected]>
2018-10-25 12:58:51 +02:00
Lorenzo BianconiandFelix Fietkau 99e04864d9 mt76: use mt76x02_dev instead of mt76_dev in mt76x02_mmio.c
Use mt76x02_dev data structure as reference in mt76x02_mmio.c
instead of mt76_dev

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2018-10-05 20:03:54 +02:00
Felix Fietkau 62ce3245da move mt7603 source files to mt7603/
Signed-off-by: Felix Fietkau <[email protected]>
2018-09-28 18:02:01 +02:00