34 Commits
Author SHA1 Message Date
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
Jakub KicinskiandFelix Fietkau 0ba7a69f89 wifi: mt76: move napi_enable() from under BH
mt76 does a lot of:

  local_bh_disable();
  napi_enable(...napi);
  napi_schedule(...napi);
  local_bh_enable();

local_bh_disable() is not a real lock, its most likely taken
because napi_schedule() requires that we invoke softirqs at
some point. napi_enable() needs to take a mutex, so move it
from under the BH protection.

Fixes: 413f0271f396 ("net: protect NAPI enablement with netdev_lock()")
Reported-by: Dan Carpenter <[email protected]>
Link: https://lore.kernel.org/[email protected]
Reviewed-by: Eric Dumazet <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
2025-03-11 11:23:49 +01:00
Quan ZhouandFelix Fietkau 5aacd0d73c wifi: mt76: mt7925: add handler to hif suspend/resume event
When the system suspend or resume, the WiFi driver sends
an hif_ctrl command to the firmware and waits for an event.
Due to changes in the event format reported by the chip, the
current mt7925's driver does not account for these changes,
resulting in command timeout. Add flow to handle hif_ctrl
event to avoid command timeout. We also exented API
mt76_connac_mcu_set_hif_suspend for connac3 this time.

Signed-off-by: Quan Zhou <[email protected]>
Link: https://patch.msgid.link/3a0844ff5162142c4a9f3cf7104f75076ddd3b87.1735910562.git.quan.zhou@mediatek.com
Signed-off-by: Felix Fietkau <[email protected]>
2025-01-13 11:16:33 +01:00
Lorenzo BianconiandFelix Fietkau 482d2a765b wifi: mt76: move irq_tasklet in mt76_dev struct
irq_tasklet struct is used by most of the drivers (e.g. mt7915, mt7921,
mt7615, mt7663 and mt7996) so move it in common code.

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2023-04-18 11:37:59 +02:00
Felix Fietkau 8ee6446075 mt76: disable BH around napi_schedule() calls
napi_schedule() can call __raise_softirq_irqoff(), which can perform softirq
handling, so it must not be called in a pure process context with BH enabled.

Signed-off-by: Felix Fietkau <[email protected]>
2021-09-24 17:54:42 +02:00
Christophe JAILLETandFelix Fietkau 9dcfba3169 mt76: switch from 'pci_' to 'dma_' API
The wrappers in include/linux/pci-dma-compat.h should go away.

The patch has been generated with the coccinelle script below.

It has been compile tested.

@@
@@
-    PCI_DMA_BIDIRECTIONAL
+    DMA_BIDIRECTIONAL

@@
@@
-    PCI_DMA_TODEVICE
+    DMA_TO_DEVICE

@@
@@
-    PCI_DMA_FROMDEVICE
+    DMA_FROM_DEVICE

@@
@@
-    PCI_DMA_NONE
+    DMA_NONE

@@
expression e1, e2, e3;
@@
-    pci_alloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3;
@@
-    pci_zalloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3, e4;
@@
-    pci_free_consistent(e1, e2, e3, e4)
+    dma_free_coherent(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_single(e1, e2, e3, e4)
+    dma_map_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_single(e1, e2, e3, e4)
+    dma_unmap_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4, e5;
@@
-    pci_map_page(e1, e2, e3, e4, e5)
+    dma_map_page(&e1->dev, e2, e3, e4, e5)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_page(e1, e2, e3, e4)
+    dma_unmap_page(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_sg(e1, e2, e3, e4)
+    dma_map_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_sg(e1, e2, e3, e4)
+    dma_unmap_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
+    dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_device(e1, e2, e3, e4)
+    dma_sync_single_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
+    dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_device(e1, e2, e3, e4)
+    dma_sync_sg_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2;
@@
-    pci_dma_mapping_error(e1, e2)
+    dma_mapping_error(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_dma_mask(e1, e2)
+    dma_set_mask(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_consistent_dma_mask(e1, e2)
+    dma_set_coherent_mask(&e1->dev, e2)

Signed-off-by: Christophe JAILLET <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2021-09-24 17:42:12 +02:00
Ryder LeeandFelix Fietkau c7d98fc358 mt76: use PCI_VENDOR_ID_MEDIATEK to avoid open coded
Use PCI standard defines.

Signed-off-by: Ryder Lee <[email protected]>
Acked-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2021-02-14 11:34:10 +01:00
Lorenzo BianconiandFelix Fietkau 16be142e40 mt76: mt76_connac: move pm utility routines in mt76_connac_lib module
Move power_save common code shared between mt7663 and mt7921 in
mt76_connac module

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2021-01-29 18:18:44 +01:00
Lorenzo BianconiandFelix Fietkau 9856236ab4 mt76: mt76_connac: move WoW and suspend code in mt76_connac_mcu module
Move WoW and suspend code in mt76_connac_mcu module in order to be reused in
mt7615 and mt7921 drivers

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2021-01-29 18:18:44 +01:00
Lorenzo BianconiandFelix Fietkau 50349a8664 mt76: mt76_connac: create mcu library
Introduce mt76_connac common mcu library for code sharing between mt7615 and
mt7921 devices

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2021-01-29 18:18:43 +01:00
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
Lorenzo BianconiandFelix Fietkau 93407be934 mt76: mt7615: move drv_own/fw_own in mt7615_mcu_ops
Introduce set_drv_ctrl and set_fw_ctrl function pointers in
mt7615_mcu_ops data structure. This is a preliminary patch to enable
runtime-pm for non-pci chipsets

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2020-08-05 11:33:02 +02:00
Lorenzo BianconiandFelix Fietkau b0bcdd66cc mt76: mt7615: acquire driver_own before configuring device for suspend
Make sure to wake the device in mt7615_pci_suspend in order to properly
configure device registers before suspend

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2020-07-10 14:45:29 +02:00
Felix Fietkau 4e6f4e432d mt76: only iterate over initialized rx queues
Fixes the following reported crash:

[    2.361127] BUG: spinlock bad magic on CPU#0, modprobe/456
[    2.361583]  lock: 0xffffa1287525b3b8, .magic: 00000000, .owner: <none>/-1, .owner_cpu: 0
[    2.362250] CPU: 0 PID: 456 Comm: modprobe Not tainted 4.14.177 #5
[    2.362751] Hardware name: HP Meep/Meep, BIOS Google_Meep.11297.75.0 06/17/2019
[    2.363343] Call Trace:
[    2.363552]  dump_stack+0x97/0xdb
[    2.363826]  ? spin_bug+0xa6/0xb3
[    2.364096]  do_raw_spin_lock+0x6a/0x9a
[    2.364417]  mt76_dma_rx_fill+0x44/0x1de [mt76]
[    2.364787]  ? mt76_dma_kick_queue+0x18/0x18 [mt76]
[    2.365184]  mt76_dma_init+0x53/0x85 [mt76]
[    2.365532]  mt7615_dma_init+0x3d7/0x546 [mt7615e]
[    2.365928]  mt7615_register_device+0xe6/0x1a0 [mt7615e]
[    2.366364]  mt7615_mmio_probe+0x14b/0x171 [mt7615e]
[    2.366771]  mt7615_pci_probe+0x118/0x13b [mt7615e]
[    2.367169]  pci_device_probe+0xaf/0x13d
[    2.367491]  driver_probe_device+0x284/0x2ca
[    2.367840]  __driver_attach+0x7a/0x9e
[    2.368146]  ? driver_attach+0x1f/0x1f
[    2.368451]  bus_for_each_dev+0xa0/0xdb
[    2.368765]  bus_add_driver+0x132/0x204
[    2.369078]  driver_register+0x8e/0xcd
[    2.369384]  do_one_initcall+0x160/0x257
[    2.369706]  ? 0xffffffffc0240000
[    2.369980]  do_init_module+0x60/0x1bb
[    2.370286]  load_module+0x18c2/0x1a2b
[    2.370596]  ? kernel_read_file+0x141/0x1b9
[    2.370937]  ? kernel_read_file_from_fd+0x46/0x71
[    2.371320]  SyS_finit_module+0xcc/0xf0
[    2.371636]  do_syscall_64+0x6b/0xf7
[    2.371930]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[    2.372344] RIP: 0033:0x7da218ae4199
[    2.372637] RSP: 002b:00007fffd0608398 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    2.373252] RAX: ffffffffffffffda RBX: 00005a705449df90 RCX: 00007da218ae4199
[    2.373833] RDX: 0000000000000000 RSI: 00005a7052e73bd8 RDI: 0000000000000006
[    2.374411] RBP: 00007fffd06083e0 R08: 0000000000000000 R09: 00005a705449d540
[    2.374989] R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000000
[    2.375569] R13: 00005a705449def0 R14: 00005a7052e73bd8 R15: 0000000000000000

Reported-by: Sean Wang <[email protected]>
Fixes: d3377b78cec6 ("mt76: add HE phy modes and hardware queue")
Signed-off-by: Felix Fietkau <[email protected]>
2020-05-24 19:11:50 +02:00
DENG QingfangandFelix Fietkau 6e02acddcb mt76: mt7615: add support for MT7611N
MT7611N is basically the same as MT7615N, except it only supports 5GHz
It is used by some TP-Link and Mercury wireless routers

Signed-off-by: DENG Qingfang <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2020-05-24 14:27:50 +02:00
Lorenzo BianconiandFelix Fietkau 20db7e73c5 mt76: mt7615: introduce PM support
Introduce suspend/resume to mt7615e driver

Co-developed-by: Wan-Feng Jiang <[email protected]>
Signed-off-by: Wan-Feng Jiang <[email protected]>
Co-developed-by: Soul Huang <[email protected]>
Signed-off-by: Soul Huang <[email protected]>
Co-developed-by: Sean Wang <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2020-05-05 17:54:06 +02:00
Lorenzo BianconiandFelix Fietkau 96e429e181 mt76: mt7615: free pci_vector if mt7615_pci_probe fails
Always free pci irq vector if mt7615_pci_probe routine fails
Moreover free irq in mt7615_pci_remove routine

Co-developed-by: Soul Huang <[email protected]>
Signed-off-by: Soul Huang <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2020-05-05 17:54:06 +02:00
Lorenzo BianconiandFelix Fietkau 1afabe78cf mt76: mt7663: add the possibility to load firmware v2
mt7663 firmware v2 is used for embedded devices since it has more completed
features in AP mode.
Add the capability to specify in mt7615 Kconfig which firmware load first
(v3 or v2) and fallback to the other one if the selected firmware fails
to load

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2020-04-27 19:55:00 +02:00
Lorenzo BianconiandFelix Fietkau bd80144cb5 mt76: mt7615: disable aspm by default
The vendor SDK also disables ASPM by default

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2020-04-17 14:46:00 +02:00
Lorenzo BianconiandFelix Fietkau 5f2f676b1f mt76: mt7615: enable MSI by default
Enable MSI/MSI-X PCI interrupts by default. This patch has been tested
using Banana Pi r64 board

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2020-04-17 14:46:00 +02:00
Lorenzo BianconiandFelix Fietkau 2097f74f66 mt76: mt7615: introduce mt7663e support
Introduce support for mt7663e 802.11ac 2x2:2 chipset to mt7615 driver.

Co-developed-by: Sean Wang <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Co-developed-by: Ryder Lee <[email protected]>
Signed-off-by: Ryder Lee <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2020-03-17 17:50:15 +01:00
Lorenzo BianconiandFelix Fietkau e536b42ebc mt76: mt7615: introduce mt7615_register_map
In order to reuse mt7615 code adding support for mt7663e driver,
introduce mt7615e_reg_map since mt7663e and mt7615 rely on a
different base registers definitions.

Co-developed-by: Sean Wang <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Co-developed-by: Ryder Lee <[email protected]>
Signed-off-by: Ryder Lee <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2020-03-17 17:50:15 +01:00
Felix Fietkau 80d3681b40 mt76: mt7615: implement probing and firmware loading on MT7622
MT7622 does not have a CR4 microcontroller, so it only uses its own N9
firmware.

Co-developed-by: Shayne Chen <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2020-01-30 14:04:37 +01:00
Felix Fietkau 1c4ff4f2dc mt76: mt7615: move mmio related code from pci.c to mmio.c
Will be shared with MT7622 SoC support

Signed-off-by: Felix Fietkau <[email protected]>
2020-01-29 17:18:19 +01:00
Lorenzo BianconiandFelix Fietkau b06177ce38 mt76: move dev_irq tracepoint in mt76 module
Move dev_irq tracepoint in common code in order to be reused by mt7603
and mt7615 drivers

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2020-01-27 17:47:51 +01:00
Felix Fietkau 59de6c9447 mt7615: replace sta_state callback with sta_add/sta_remove
The MT7615 firmware needs to know the association id at creation time,
which is unavailable during the transition from notexist to none in
.sta_state.
This can cause a number of issues, probably also breaking powersave
support.

Signed-off-by: Felix Fietkau <[email protected]>
2019-12-05 14:26:14 +01:00
Felix Fietkau a3e88bcf17 mt76: move state from struct mt76_dev to mt76_phy
Allows keeping per-wiphy state separate

Signed-off-by: Felix Fietkau <[email protected]>
2019-11-20 12:54:55 +01:00
Lorenzo BianconiandFelix Fietkau 028071d959 mt76: mt7615: report tx_time, bss_rx and busy time to mac80211
Report tx time/rx time and obss time from hw mib counters to fill survey
info requested by mac80211

Co-developed-by: Felix Fietkau <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-09-26 18:03:36 +02:00
Felix Fietkau b0429879ea mt76: rename mt76_driver_ops txwi_flags to drv_flags and include tx aligned4
This reduces the struct size and is useful for adding more flags later

Signed-off-by: Felix Fietkau <[email protected]>
2019-09-26 12:42:08 +02:00
Lorenzo BianconiandFelix Fietkau 9657e63043 mt76: mt7615: enable survey support
Introduce channel survey support for mt7615 driver

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 97609f3708 mt76: mt7615: add static qualifier to mt7615_rx_poll_complete
Make mt7615_rx_poll_complete static since it is used just in pci.c
to initialize rx_poll_complete function pointer

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-05-11 16:03:52 +02:00
YueHaibingandFelix Fietkau 4e0ccc6a2d mt76: mt7615: Make mt7615_irq_handler static
Fix sparse warning:

drivers/net/wireless/mediatek/mt76/mt7615/pci.c:37:13:
 warning: symbol 'mt7615_irq_handler' was not declared. Should it be static?

Signed-off-by: YueHaibing <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-05-11 15:57:46 +02:00
Lorenzo BianconiandFelix Fietkau 4afd89e8ab mt76: mt7615: 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
Ryder LeeandFelix Fietkau 334b4cedf2 mt76: add mac80211 driver for MT7615 PCIe-based chipsets
This driver is for a newer generation of MediaTek MT7615 4x4 802.11ac
PCIe-based chipsets, which support wave2 MU-MIMO up to 4 users/group
and also support up to 160MHz bandwidth.

The driver fully supports AP, station and monitor mode.

Signed-off-by: Ryder Lee <[email protected]>
Signed-off-by: Roy Luo <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-04-25 12:04:34 +02:00