Commit Graph
188 Commits
Author SHA1 Message Date
Felix Fietkau bf6e72d6df Revert "mt76: mt76x02: store software PN/IV in wcid"
This reverts commit f37ad72f1a.
PN needs to be shared with mac82011 for mgmt frame crypto

Signed-off-by: Felix Fietkau <[email protected]>
2019-03-26 11:35:22 +01:00
Stanislaw GruszkaandFelix Fietkau 4a366bdc0e mt76usb: remove mt76u_buf and use urb directly
Put urb pointer in mt76_queue_entry directly instead of mt76u_buf
structure.

Signed-off-by: Stanislaw Gruszka <[email protected]>
2019-03-24 08:24:42 +01:00
Stanislaw GruszkaandFelix Fietkau 3f9b68d0f6 mt76usb: move mt76u_buf->done to queue entry
mt76_queue_entry has alreay one bool variable, adding new one will
not increase it's size. Removing ->done filed from mt76u_buf will
allow to use urb directly in mt76usb code.

Signed-off-by: Stanislaw Gruszka <[email protected]>
2019-03-24 08:24:42 +01:00
Stanislaw GruszkaandFelix Fietkau a4eb5db07c mt76usb: remove mt76u_buf redundant fileds
Remove mt76u_buf->{len, buf} fields and operate on corresponding
urb fields directly.

Signed-off-by: Stanislaw Gruszka <[email protected]>
2019-03-24 08:24:28 +01:00
Stanislaw GruszkaandFelix Fietkau e9c017190e mt76usb: use usb_dev private data
Setup usb device private data. This allows to remove mt76u_buf->dev
and simplify some routines as no longer we need to get usb device
through usb interface.

Signed-off-by: Stanislaw Gruszka <[email protected]>
2019-03-24 08:24:28 +01:00
Stanislaw GruszkaandFelix Fietkau 16b2ccf535 mt76: remove rx_page_lock
We can not run mt76u_alloc_buf() concurently, rx_tasklet is stooped
when mt76u_submit_rx_buffers(). We can remove rx_page_lock.

Signed-off-by: Stanislaw Gruszka <[email protected]>
2019-03-24 08:24:28 +01:00
Stanislaw GruszkaandFelix Fietkau 65e634418c mt76: unify set_tim
All mt76 drivers (now also USB drivers) require empty .set_tim
callback. Add it to common mt76 module and use on all drivers.

Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-03-24 08:22:22 +01:00
Lorenzo BianconiandFelix Fietkau 3ce8a93ae1 mt76: dma: add static qualifier to mt76_dma_tx_queue_skb
As already done for mt76_dma_tx_queue_skb_raw, add static qualifier to
mt76_dma_tx_queue_skb and introduce mt76_tx_queue_skb in order to run
mt76_dma_tx_queue_skb in driver code

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-03-16 20:28:17 +01:00
Felix Fietkau 42ce040662 mt76: use TX_NEEDS_ALIGNED4_SKBS
Remove custom header padding insert code

Signed-off-by: Felix Fietkau <[email protected]>
2019-03-15 11:27:33 +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
Felix Fietkau f37ad72f1a mt76: mt76x02: store software PN/IV in wcid
Avoids expensive 64-bit atomic access in the data path

Signed-off-by: Felix Fietkau <[email protected]>
2019-03-14 22:37:30 +01:00
Felix Fietkau c0ab515474 mt76: store wcid tx rate info in one u32 reduce locking
Signed-off-by: Felix Fietkau <[email protected]>
2019-03-14 22:37:30 +01:00
Felix Fietkau 72fe286f2d mt76: use mac80211 txq scheduling
Signed-off-by: Felix Fietkau <[email protected]>
2019-03-14 22:37:30 +01:00
Lorenzo BianconiandFelix Fietkau f977a924b8 mt76: introduce mt76_tx_info data structure
Add mt76_tx_info as auxiliary data structure to pass values
to tx_prepare_skb pointer. This is a preliminary patch to add
support for new chipsets (e.g. mt7615)

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-03-14 22:09:32 +01:00
Lorenzo BianconiandFelix Fietkau efe9a473af mt76: mmio: move mt76_insert_hdr_pad in mt76_dma_tx_queue_skb
Introduce tx_aligned4_skbs in mt76_driver_ops and move
mt76_insert_hdr_pad in mt76_dma_tx_queue_skb. This is a preliminary
patch in order to unify tx dma mapping for mt76x02 and new chipsets

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-03-14 22:09:32 +01:00
Lorenzo BianconiandFelix Fietkau 0fe6386820 mt76: move mt76x02_insert_hdr_pad in mt76-core module
Move mt76x02_insert_hdr_pad in m76-core and rename it in
mt76_insert_hdr_pad in order to be used in mt76_dma_tx_queue_skb.
This is a preliminary patch in order to properly support tx dma
mapping for new chipsets (e.g. mt7615)

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-03-14 22:09:32 +01:00
Lorenzo BianconiandFelix Fietkau 2dc63b0da0 mt76: introduce mt76_txq_id field in mt76_queue_entry
Add mt76_txq_id field to mt76_queue_entry in order to properly
track outstanding frames for mt7615 that relies on a single hw queue

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-03-13 12:53:23 +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
Lorenzo BianconiandFelix Fietkau 9bc2d56c37 mt76: remove mt76_queue dependency from tx_complete_skb function pointer
Remove mt76_queue dependency from tx_complete_skb function pointer and
rely on mt76_tx_qid instead. Remove flush from tx_complete_skb
signature. This is a preliminary patch to introduce mt76_sw_queue
support

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-03-12 16:58:06 +01:00
Lorenzo BianconiandFelix Fietkau ddd98f8870 mt76: remove mt76_queue dependency from tx_prepare_skb function pointer
Remove mt76_queue dependency from tx_prepare_skb function pointer and
rely on mt76_tx_qid instead. This is a preliminary patch to introduce
mt76_sw_queue support

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-03-12 16:58:06 +01:00
Lorenzo BianconiandFelix Fietkau e97a209226 mt76: remove mt76_queue dependency from tx_queue_skb function pointer
Remove mt76_queue dependency from tx_queue_skb function pointer and
rely on mt76_tx_qid instead. This is a preliminary patch to introduce
mt76_sw_queue support

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-03-12 16:58:06 +01:00
Lorenzo BianconiandFelix Fietkau bdee9247f9 mt76: fix schedule while atomic in mt76x02_reset_state
Fix following schedule while atomic in mt76x02_reset_state
since synchronize_rcu is run inside a RCU section

[44036.944222] mt76x2e 0000:06:00.0: MCU message 31 (seq 3) timed out
[44036.944281] BUG: sleeping function called from invalid context at kernel/rcu/tree_exp.h:818
[44036.944284] in_atomic(): 1, irqs_disabled(): 0, pid: 28066, name: kworker/u4:1
[44036.944287] INFO: lockdep is turned off.
[44036.944292] CPU: 1 PID: 28066 Comm: kworker/u4:1 Tainted: G        W         5.0.0-rc7-wdn-t1+ #7
[44036.944294] Hardware name: Dell Inc. Studio XPS 1340/0K183D, BIOS A11 09/08/2009
[44036.944305] Workqueue: phy1 mt76x02_wdt_work [mt76x02_lib]
[44036.944308] Call Trace:
[44036.944317]  dump_stack+0x67/0x90
[44036.944322]  ___might_sleep.cold.88+0x9f/0xaf
[44036.944327]  rcu_blocking_is_gp+0x13/0x50
[44036.944330]  synchronize_rcu+0x17/0x80
[44036.944337]  mt76_sta_state+0x138/0x1d0 [mt76]
[44036.944349]  mt76x02_wdt_work+0x1c9/0x610 [mt76x02_lib]
[44036.944355]  process_one_work+0x2a5/0x620
[44036.944361]  worker_thread+0x35/0x3e0
[44036.944368]  kthread+0x11c/0x140
[44036.944376]  ret_from_fork+0x3a/0x50
[44036.944384] BUG: scheduling while atomic: kworker/u4:1/28066/0x00000002
[44036.944387] INFO: lockdep is turned off.
[44036.944389] Modules linked in: cmac ctr ccm af_packet snd_hda_codec_hdmi

Introduce __mt76_sta_remove in order to run sta_remove without holding dev->mutex.
Move __mt76_sta_remove outside of RCU section in mt76x02_reset_state

Fixes: e4ebb8b403d1 ("mt76: mt76x2: implement full device restart on watchdog reset")
Signed-off-by: Lorenzo Bianconi <[email protected]>
2019-03-12 10:42:49 +01:00
Lorenzo BianconiandFelix Fietkau b216d3ca4e mt76: introduce q->stopped parameter
Introduce mt76_queue stopped parameter in order to run
ieee80211_wake_queue only when mac80211 queues have been
previously stopped and avoid to disable interrupts when
it is not necessary

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 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 ba1d9894c6 mt76: mmio: move mt76x02_set_irq_mask in mt76 module
Move mt76x02_set_irq_mask in mt76 module in order to be reused
adding support for mt7603 driver and remove duplicated code

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-03-01 13:00:31 +01:00
Felix Fietkau fa8340696f mt76: mt76x2: implement full device restart on watchdog reset
Restart the firmware and re-initialize the MAC to be able to recover
from more kinds of hang states

Signed-off-by: Felix Fietkau <[email protected]>
2019-02-27 19:42:41 +01:00
Lorenzo BianconiandFelix Fietkau b040ef7e1c mt76: remove no longer used routine declarations
Remove following routine declarations that are no longer used
after commit cfca5f693c5d ("mt76usb: remove usb_mcu.c"):

- mt76u_mcu_complete_urb
- mt76u_deinit
- mt76u_buf_free
- mt76u_submit_urb

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-02-26 12:29:12 +01:00
Lorenzo BianconiandFelix Fietkau 523e374f5b mt76: usb: simplify rx buffer allocation
Squash mt76u_buf_alloc_sg and mt76u_buf_alloc and remove duplicated
code. Reuse mt76u_refill_rx in mt76u_buf_alloc

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-02-26 12:26:02 +01:00
Stanislaw GruszkaandFelix Fietkau e4250c91f9 mt76usb: remove usb_mcu.c
Don't need separate file just for kmalloc/kfree.

Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-02-26 12:26:02 +01:00
Stanislaw GruszkaandFelix Fietkau 2437a9ad7b mt76usb: use synchronous msg for mcu command responses
Use usb_bulk_msg for reading MCU command responses. This simplify code
a lot.

Together with 97a3005759c ("mt76usb: allow mt76u_bulk_msg be used
for reads") it also fix possible problems with rx data buffers
not being aligned and contained within single page. After doing
page_frag_alloc(1024) consecutive page_frag_alloc(PAGE_SIZE) will
alloc PAGE_SIZE buffer at PAGE_SIZE - 1024 offset.

Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-02-26 12:26:02 +01:00
Stanislaw GruszkaandFelix Fietkau e5747b2c46 mt76usb: allow mt76u_bulk_msg be used for reads
Extend mt76u_bulk_msg() such it can be used for synchronous bulk reads.

Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-02-26 12:26:02 +01:00
Lorenzo BianconiandFelix Fietkau 302406bc6b mt76: usb: do not use sg buffers for mcu messages
Do not use scatter-gather buffers for mcu commands.
Introduce mt76u_buf_alloc and mt76u_buf_alloc_sg routines.

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-02-18 20:39:41 +01:00
Lorenzo BianconiandFelix Fietkau 1e4db14016 mt76: usb: move mt76u_check_sg in usb.c
Move mt76u_check_sg routine in usb.c and introduce sg_en variable
in mt76_usb in order to check if scatter-gather is supported by
mt76u layer

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-02-18 20:39:41 +01:00
Stanislaw GruszkaandFelix Fietkau a10e9e5e94 mt76x02u: use usb_bulk_msg to upload firmware
We don't need to send firmware data asynchronously, much simpler is just
use synchronous usb_bulk_msg().

Tested-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-02-18 20:39:41 +01:00
Lorenzo BianconiandFelix Fietkau 47d5922e14 mt76: move alloc_device common code in mt76_alloc_device
Move mt76x{0,2} alloc_device common code in mt76_alloc_device and
remove duplicated code

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-02-18 20:39:41 +01:00
Lorenzo BianconiandFelix Fietkau 0e8e53f6ad mt76: remove add_buf pointer in mt76_queue_ops
Remove add_buf function pointer in mt76_queue_ops data structure since
it is no longer used

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-02-07 14:48:44 +01:00
Lorenzo BianconiandFelix Fietkau 91d04558f0 mt76: move mt76_dma_tx_queue_skb_raw in mt76-core module
Move mt76_dma_tx_queue_skb_raw routine in dma.c and add the
corresponding entry in mt76_queue_ops data structure.
mt76_dma_tx_queue_skb_raw  will be reused adding support for
mt7603 driver

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-02-07 14:48:44 +01:00
Lorenzo BianconiandFelix Fietkau 1763cb0d38 mt76: move mt76_mcu_rx_event in mt76-core
Move mt76_mcu_rx_event i mt76-core module and remove duplicated code.
mt76_mcu_rx_event will be reused adding support for mt7603 driver

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-02-07 14:48:44 +01:00
Lorenzo BianconiandFelix Fietkau 4637f95417 mt76: move mt76_mcu_get_response in mt76-core
Move mt76_mcu_get_response in mt76-core module and remove duplicated
code. mt76_mcu_get_response will be reused adding support for mt7603
driver

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-02-07 14:48:44 +01:00
Lorenzo BianconiandFelix Fietkau 6e33ce6d73 mt76: move mt76_mcu_msg_alloc in mt76-core
Move mt76_mcu_msg_alloc in mt76-core module and remove duplicated code.
mt76_mcu_msg_alloc will be reused adding support for mt7603 driver

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-02-07 14:48:34 +01:00
Felix Fietkau ae30c30f33 mt76: add driver callback for when a sta is associated
MT7603 needs this to update the HT/VHT capabilities

Signed-off-by: Felix Fietkau <[email protected]>
2019-01-30 12:17:23 +01:00
Felix Fietkau 63bf183451 mt76: add channel switch announcement support
Signed-off-by: Felix Fietkau <[email protected]>
2019-01-15 14:27:02 +01:00
Felix Fietkau f84b008222 mt76: fix tx status reporting for non-probing frames
On MT76x2, the hardware does not report tx status in the FIFO register,
if the packet id is 0.
Change the allocation of packet IDs to use 0 for no-ack packets, 1 for
non-probing packets and 2-255 for packets with tx status requested.
Fixes rate control issues

Signed-off-by: Felix Fietkau <[email protected]>
2019-01-11 15:24:32 +01:00
Felix Fietkau 58988a314d mt76: fix signedness of rx status signal field
It is usually negative, so it needs to be signed.

Signed-off-by: Felix Fietkau <[email protected]>
2018-12-29 13:01:49 +01:00
Lorenzo BianconiandFelix Fietkau 3598046d01 mt76: mmio: introduce mt76x02_check_tx_hang watchdog
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 <[email protected]>
2018-12-28 16:16:41 +01:00
Felix Fietkau b2cc29b905 mt76: move mt76x02_get_txpower to mt76 core
It will be reused by mt7603 later

Signed-off-by: Felix Fietkau <[email protected]>
2018-12-06 14:30:00 +01:00
Felix Fietkau fea7ad804e mt76: move mt76x02_phy_get_min_avg_rssi to mt76 core
This will be used by mt7603 as well

Signed-off-by: Felix Fietkau <[email protected]>
2018-12-05 17:06:59 +01:00
Felix Fietkau a97127b1b3 mt76: replace sta_add/remove ops with common sta_state function
Allows adding unassociated stations from mac80211

Signed-off-by: Felix Fietkau <[email protected]>
2018-11-16 12:09:52 +01:00
Felix Fietkau 7e5c819a45 mt76: add mt76_sta_remove helper
This allows station removal code to be used by mt7603 later

Signed-off-by: Felix Fietkau <[email protected]>
2018-11-13 11:33:48 +01:00
Felix Fietkau ef06c3074f mt76: avoid queue/status spinlocks while passing tx status to mac80211
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 <[email protected]>
2018-11-05 21:11:42 +01:00