wifi: mt76: mt7615: rely on shared poll_list field

Rely on poll_list field in mt76_wcid structure and get rid of
private copy.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7615: rely on shared sta_poll_list and sta_poll_lock

Rely on sta_poll_list and sta_poll_lock fields in mt76_dev structure
and get rid of private copies.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7615: fix possible race in mt7615_mac_sta_poll

Grab sta_poll_lock spinlock in mt7615_mac_sta_poll routine in order to
avoid possible races with mt7615_mac_add_txs() or mt7615_mac_fill_rx()
removing msta pointer from sta_poll_list.

Fixes: a621372a04ac ("mt76: mt7615: rework mt7615_mac_sta_poll for usb code")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/48b23404b759de4f1db2ef85975c72a4aeb1097c.1684938695.git.lorenzo@kernel.org

wifi: mt76: get rid of unused sta_ps callbacks

sta_ps callback is just an empty stub for most of the drivers,
so get rid of them.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: add missing locking to protect against concurrent rx/status calls

According to the documentation, ieee80211_rx_list must not run concurrently
with ieee80211_tx_status (or its variants).

Cc: stable@vger.kernel.org
Fixes: 88046b2c9f6d ("mt76: add support for reporting tx status with skb")
Reported-by: Brian Coverstone <brian@mainsequence.net>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: handle failure of vzalloc in mt7615_coredump_work

vzalloc may fails, dump might be null and will cause
illegal address access later.

Link: https://lore.kernel.org/all/Y%2Fy5Asxw3T3m4jCw@lore-desk
Fixes: d2bf7959d9c0 ("mt76: mt7663: introduce coredump support")
Signed-off-by: Kang Chen <void0red@gmail.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: ignore key disable commands

This helps avoid cleartext leakage of already queued or powersave buffered
packets, when a reassoc triggers the key deletion.

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230330091259.61378-1-nbd@nbd.name

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 <daniel@makrotopia.org>
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: move aggr_stats array in mt76_phy

Move aggregation stats array per-phy instead of share it between multiple
interfaces. This is a preliminary patch to add mt7996 driver support.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7615: rely on mt7615_phy in mt7615_mac_reset_counters

This is a preliminary patch to move aggr_stats array in mt76_phy
structure.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7615: enable use_cts_prot support

This adds selectable RTC/CTS enablement for each interface.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: fix rx checksum offload on mt7615/mt7915/mt7921

Checking the relevant rxd bits for the checksum information only indicates
if the checksum verification was performed by the hardware and doesn't show
actual checksum errors. Checksum errors are indicated in the info field of
the DMA descriptor. Fix packets erroneously marked as CHECKSUM_UNNECESSARY
by checking the extra bits as well.
Those bits are only passed to the driver for MMIO devices at the moment, so
limit checksum offload to those.

Fixes: 2122dfbfd0bd ("mt76: mt7615: add rx checksum offload support")
Fixes: 94244d2ea503 ("mt76: mt7915: add rx checksum offload support")
Fixes: 0e75732764e8 ("mt76: mt7921: enable rx csum offload")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221005130824.23371-2-nbd@nbd.name

wifi: mt76: fix receiving LLC packets on mt7615/mt7915

When 802.3 decap offload is enabled, the hardware indicates header translation
failure, whenever either the LLC-SNAP header was not found, or a VLAN header
with an unregcognized tag is present.
In that case, the hardware inserts a 2-byte length fields after the MAC
addresses. For VLAN packets, this tag needs to be removed. However,
for 802.3 LLC packets, the length bytes should be preserved, since there
is no separate ethertype field in the data.
This fixes an issue where the length field was omitted for LLC frames, causing
them to be malformed after hardware decap.

Fixes: 1eeff0b4c1a6 ("mt76: mt7915: fix decap offload corner case with 4-addr VLAN frames")
Reported-by: Chad Monroe <chad.monroe@smartrg.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221005130824.23371-1-nbd@nbd.name

wifi: mt76: fix reading current per-tid starting sequence number for aggregation

The code was accidentally shifting register values down by tid % 32 instead of
(tid * field_size) % 32.

Cc: stable@vger.kernel.org
Fixes: a28bef561a5c ("mt76: mt7615: re-enable offloading of sequence number assignment")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220826182329.18155-1-nbd@nbd.name

Revert "devcoredump: remove the useless gfp_t parameter in dev_coredumpv and dev_coredumpm"

This reverts commit 77515ebaf01920e2db49e04672ef669a7c2907f2 as it
causes build problems in linux-next. It needs to be reintroduced in a
way that can allow the api to evolve and not require a "flag day" to
catch all users.

Link: https://lore.kernel.org/r/20220623160723.7a44b573@canb.auug.org.au
Cc: Duoming Zhou <duoming@zju.edu.cn>
Cc: Brian Norris <briannorris@chromium.org>
Cc: Johannes Berg <johannes@sipsolutions.net>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

devcoredump: remove the useless gfp_t parameter in dev_coredumpv and dev_coredumpm

The dev_coredumpv() and dev_coredumpm() could not be used in atomic
context, because they call kvasprintf_const() and kstrdup() with
GFP_KERNEL parameter. The process is shown below:

dev_coredumpv(.., gfp_t gfp)
dev_coredumpm(.., gfp_t gfp)
dev_set_name
kobject_set_name_vargs
kvasprintf_const(GFP_KERNEL, ...); //may sleep
kstrdup(s, GFP_KERNEL); //may sleep

This patch removes gfp_t parameter of dev_coredumpv() and dev_coredumpm()
and changes the gfp_t parameter of kzalloc() in dev_coredumpm() to
GFP_KERNEL in order to show they could not be used in atomic context.

Fixes: 833c95456a70 ("device coredump: add new device coredump class")
Reviewed-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Link: https://lore.kernel.org/r/df72af3b1862bac7d8e793d1f3931857d3779dfd.1654569290.git.duoming@zju.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

mt76: convert MT_TX_HW_QUEUE_EXT_PHY to MT_TX_HW_QUEUE_PHY

Report phy_indx in tx_info->hw_queue. This is a preliminary patch to add
newer chipset support

Co-developed-by: Bo Jiao <bo.jiao@mediatek.com>
Signed-off-by: Bo Jiao <bo.jiao@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: add phy_idx to mt76_wcid

Introduce phy_idx to mt76_wcid structure instead of ext_phy.
This is a preliminary patch to add newer chipset support.

Co-developed-by: Bo Jiao <bo.jiao@mediatek.com>
Signed-off-by: Bo Jiao <bo.jiao@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: introduce phys array in mt76_dev structure

Introduce phys array in mt76_dev structure to reference mt76_phy
supported by the chipset. This is a preliminary patch to introduce
newer chipset support.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: add phy_idx in mt76_rx_status

Introduce phy_idx mt76_rx_status instead of ext_idx. This is a
preliminary patch to add newer chipset support

Co-developed-by: Bo Jiao <bo.jiao@mediatek.com>
Signed-off-by: Bo Jiao <bo.jiao@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: do not use skb_set_queue_mapping for internal purposes

Previously the code used skb_set_queue_mapping for management or non-bufferable
powersave frames that need to be sent to a different hardware queue.
This can confuse AQL, which expects the value to remain the same until the tx
status report.
The only place that currently uses the altered skb queue mapping is the txwi
write function. Change the code to pass the hardware queue id as a function
parameter instead.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix throughput regression on DFS channels

For some reason, mt7615 reacts badly to repeatedly enabling/disabling the radar
detector without also switching the channel.
This results in very bad throughput on DFS channels, because
hw->conf.radar_enabled can get toggled a few times after CAC ends.
Fix this by always leaving the DFS detector enabled on DFS channels and instead
suppress unwanted detection events.

Fixes: 2c86f6752046 ("mt76: mt7615: fix/rewrite the dfs state handling logic")
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: connac: move mt7615_txp_skb_unmap in common code

Move mt7615_txp_skb_unmap in shared code and reuse it in mt7915e and
mt7921e driver.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: connac: move mt76_connac_tx_free in shared code

Move mt76_connac_tx_free structure in mt76_connac module since it is
shared by mt7615 and mt7921 drivers.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: move mt7615_txp_ptr in mt76_connac module

Since mt7615_txp_ptr is shared between mt7615 and mt7921 move it in
mt76_connac module.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: connac: move mt76_connac_fw_txp in common module

Since mt76_connac_fw_txp struct is shared between mt7615e, mt7915e and
mt7921e, move it in mt76_connac module.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add missing bh-disable around rx napi schedule

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 <nbd@nbd.name>

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 <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: improve signal strength reporting

Instead of just taking the maximum per-chain signal strength values,
add an approximation for the sum of the combined signal.
This should more accurately reflect the real signal strength, especially
if the per-chain signal strength values are close to each other

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: Fix assigning negative values to unsigned variable

Smatch reports the following:
drivers/net/wireless/mediatek/mt76/mt7615/mac.c:1865
mt7615_mac_adjust_sensitivity() warn: assigning (-110) to unsigned
variable 'def_th'
drivers/net/wireless/mediatek/mt76/mt7615/mac.c:1865
mt7615_mac_adjust_sensitivity() warn: assigning (-98) to unsigned
variable 'def_th'

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: fix endianness errors in reverse_frag0_hdr_trans

Fix ht ctl field size in mt{7615,7915,7921}_reverse_frag0_hdr_trans.
Fix the following endianness warnings in mt{7615,7915,7921}_reverse_frag0_hdr_trans:

drivers/net/wireless/mediatek/mt76/mt7915/mac.c:417:29: warning: cast to restricted __le32
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:417:29: warning: restricted __le32 degrades to integer
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:417:29: warning: restricted __le32 degrades to integer
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:417:27: warning: incorrect type in assignment (different base types)
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:417:27: expected restricted __le16 [usertype] frame_control
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:417:27: got unsigned long
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:418:24: warning: cast to restricted __le32
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:418:24: warning: restricted __le32 degrades to integer
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:418:24: warning: restricted __le32 degrades to integer
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:418:22: warning: incorrect type in assignment (different base types)
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:418:22: expected restricted __le16 [usertype] seq_ctrl
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:418:22: got unsigned long
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:419:20: warning: cast to restricted __le32
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:419:20: warning: restricted __le32 degrades to integer
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:419:20: warning: restricted __le32 degrades to integer
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:419:18: warning: incorrect type in assignment (different base types)
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:419:18: expected restricted __le32 [usertype] qos_ctrl
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:419:18: got unsigned long
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:420:19: warning: cast to restricted __le32
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:420:19: warning: restricted __le32 degrades to integer
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:420:19: warning: restricted __le32 degrades to integer
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:420:17: warning: incorrect type in assignment (different base types)
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:420:17: expected restricted __le32 [usertype] ht_ctrl
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:420:17: got unsigned long
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:448:25: warning: restricted __be16 degrades to integer
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:448:38: warning: restricted __be16 degrades to integer
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:1450:23: warning: incorrect type in assignment (different base types)
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:1450:23: expected unsigned int [usertype] *cur_info
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:1450:23: got restricted __le32 *
drivers/net/wireless/mediatek/mt76/mt7915/mac.c:1451:34: warning: cast to restricted __le32

Fixes: dc5399a50b45f ("mt76: reverse the first fragmented frame to 802.11")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: do not always copy ethhdr in reverse_frag0_hdr_trans

Do not always copy ethernet header in mt{7615,7915,7921}_reverse_frag0_hdr_trans
and use a pointer instead.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix/rewrite the dfs state handling logic

Copy the updated logic from mt7915 to to fix issues in handling DFS radar
detector states

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7663s: flush runtime-pm queue after waking up the device

Add missing mt76_connac_pm_dequeue_skbs routine waking up mt7663s device
from runtime-pm sleep state.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix a leftover race in runtime-pm

Fix a possible race in mt7615_pm_power_save_work() if rx/tx napi
schedules ps_work and we are currently accessing device register
on a different cpu.

Fixes: db928f1ab9789 ("mt76: mt7663: rely on mt76_connac_pm_ref/mt76_connac_pm_unref in tx/rx napi")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615e: process txfree and txstatus without allocating skbs

Similar to mt7915 driver, process txfree and txstatus without allocating
skbs in order to reduce pressure on the memory allocator

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: connac: move mt76_connac_mcu_rdd_cmd in mt76-connac module

Move mt76_connac_mcu_rdd_cmd routine in mt76-connac module and remove
duplicated code.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix decap offload corner case with 4-addr VLAN frames

With 4-address mode VLAN frames, an internal header translation step fails,
leaving behind an extra 2-byte length field that must be reomved by the driver.
Add a check for this condition to fix receiving such packets

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: do not pass the received frame with decryption error

MAC80211 doesn't care any decryption error in 802.3 path, so received
frame will be dropped if HW tell us that the cipher configuration is not
matched as well as the header has been translated to 802.3. This case only
appears when IEEE80211_FCTL_PROTECTED is 0 and cipher suit is not none in
the corresponding HW entry.

The received frame is only reported to monitor interface if HW decryption
block tell us there is ICV error or CCMP/BIP/WPI MIC error. Note in this
case the reported frame is decrypted 802.11 frame and the payload may be
malformed due to mismatched key.

Signed-off-by: Xing Song <xing.song@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: reverse the first fragmented frame to 802.11

The HW can apply header translation to first fragmented frame, and
ramaining fragmented frame can only keep 802.11 format. Check and
reverse the first fragmented frame to 802.11 format to make sure
them can be defragmented by mac80211.

Signed-off-by: Xing Song <xing.song@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: remove mt76_wcid pointer from mt76_tx_status_check signature

Remove mt76_wcid pointer from mt76_tx_status_check signature since it is
always set to NULL

Tested-by: mrkiko.rs@gmail.com
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix skb use-after-free on mac reset

When clearing all existing pending tx slots, mt76_tx_complete_skb needs to
be used to free the skbs, to ensure that they are cleared from the status
list as well.

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix endianness warning in mt7615_mac_write_txwi

Fix the following sparse warning in mt7615_mac_write_txwi routine:
drivers/net/wireless/mediatek/mt76/mt7615/mac.c:758:17:
warning: incorrect type in assignment
expected restricted __le32 [usertype]
got unsigned long

Fixes: 04b8e65922f63 ("mt76: add mac80211 driver for MT7615 PCIe-based chipsets")
Fixes: d4bf77bd74930 ("mt76: mt7615: introduce mt7663u support to mt7615_write_txwi")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: set macwork timeout according to runtime-pm

Set macwork timeout value according to runtime-pm in order to reduce
power consumption

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7663s: rely on mt76_connac_pm_ref/mt76_connac_pm_unref in tx path

Similar to mt7663e, rely on mt76_connac_pm_ref/mt76_connac_pm_unref to
check PM state and increment/decrement wake counter

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: fix iv and CCMP header insertion

The iv from RXD is only for TKIP_RSC/CCMP_PN/GCMP_PN, and it needs a
check for CCMP header insertion. Move mt76_cipher_type to mt76.h to
reduce duplicated code.

Signed-off-by: Xing Song <xing.song@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: make mt76_update_survey() per phy

Reduce duplicated survey for DBDC.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: update radar parameters

Patch radar parameters to match the SDK to avoid possible false alarms.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add .offset_tsf callback

It's much more accurate than .get_tsf + .set_tsf and switch to use
mt76_rmw to operate tsf registers.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: avoid use of ieee80211_tx_info_clear_status

It overwrites mt76_tx_cb data in the skb

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix fixed-rate tx status reporting

Rely on the txs fixed-rate bit instead of info->control.rates

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: connac: do not schedule mac_work if the device is not running

Do not run ieee80211_queue_delayed_work for mac work if the worqueue is
not initialized yet

Fixes: b1bd7bb8121d ("mt76: connac: unschedule mac_work before going to sleep")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/5bfd36a75799c37b12fcb54d17e77fbc2c7a0558.1619187875.git.lorenzo@kernel.org

mt76: connac: unschedule mac_work before going to sleep

In order to wake the device less frequently and so reduce power
consumpation, unschedule mac_work before going to sleep

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: move token utilities in mt76 common module

Move token management in mt76 common module since it is shared between
mt7615, mt7915 and mt7921 drivers

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: move token_lock, token and token_count in mt76_dev

Move token_lock, token and token_count data structures in mt76_dev.
This is a preliminary patch to move token management in mt76 common
module since it is shared by mt7615, mt7915 and mt7921 drivers.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: connac: use waitqueue for runtime-pm

Simplify the code using a wait_queue_head_t instead of a completion to
wait the chip is fully awake in mt76_connac_pm_wake routine

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: connac: alaways wake the device before scanning

move scanning check from mt76_connac_power_save_sched routine
to mt7921_pm_power_save_work/mt7615_pm_power_save_work ones

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: connac: remove MT76_STATE_PM in mac_tx_free

Get rid of MT76_STATE_PM chec in mt7615_mac_tx_free and
mt7921_mac_tx_free since we already rely on mt76_connac_pm_unref in the
NAPI callback.
Remove mt76_connac_power_save_sched calls in mt7615_mac_tx_free and
mt7921_mac_tx_free

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7663: rely on mt76_connac_pm_ref/mt76_connac_pm_unref in tx/rx napi

Introduce mt7615_poll_rx rx napi callback for mt7663.
Do not access device registers in tx/rx napi if the device is not awake.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: use ieee80211_free_txskb() in mt7615_tx_token_put()

We should use ieee80211_free_txskb() to report skb status avoid wrong
aql accounting after reset.

Cc: stable@vger.kernel.org
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: report Rx timestamp

Frame reception timestamp (low 32-bits) that indicates the value of the
local TSF timer value at the time the first bit of the MAC header in the
received frame (PPDU unit) arriving at the MAC.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix chip reset on MT7622 and MT7663e

After chip reset, the DMA scheduler needs to be initialized as well.
Since the code is PCI/SoC specific, move it to pci_mac.c, so that it
can depend on a function in dma.c

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7622: trigger hif interrupt for system reset

hif interrupt needs to be triggered after MT_MCU_INT_EVENT.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: cleanup mcu tx queue in mt7615_dma_reset()

With this patch, mt7615_mac_reset_work() can recover system back.

Fixes: e637763b606b ("mt76: move mcu queues to mt76_dev q_mcu array")
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: stop ext_phy queue when mac reset happens

Stop Tx burst for ext_phy after mac reset.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix mib stats counter reporting to mac80211

In order to properly report MIB counters to mac80211, resets stats in
mt7615_get_stats routine and hold mt76 mutex accessing MIB counters.
Sum up MIB counters in mt7615_mac_update_mib_stats routine.

Fixes: c388d8584bc83 ("mt76: mt7615: add a get_stats() callback")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix TSF configuration

The index of TSF counters should follow HWBSSID.

Fixes: d8d59f66d136 ("mt76: mt7615: support 16 interfaces")
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix memory leak in mt7615_coredump_work

Similar to the issue fixed in mt7921_coredump_work, fix a possible memory
leak in mt7615_coredump_work routine.

Fixes: d2bf7959d9c0f ("mt76: mt7663: introduce coredump support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add support for rx decapsulation offload

For AP and Client mode, the hardware can pass received packets
as 802.3 frames that can be passed to the network stack as-is.

Tested-by: Frank Wunderlich <frank-w@public-files.de>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add rx checksum offload support

Set skb->ip_summed to CHECKSUM_UNNECESSARY if the hardware has validated
the IP and TCP/UDP checksum

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: enable hw rx-amsdu de-aggregation

Enable hw rx-amsdu de-aggregation support.
This is a preliminary patch to enable rx checksum offload.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix tx skb dma unmap

The first pointer in the txp needs to be unmapped as well, otherwise it will
leak DMA mapping entries

Fixes: 27d5c528a7ca ("mt76: fix double DMA unmap of the first buffer on 7615/7915")
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix key set/delete issues

There were multiple issues in the current key set/remove code:
- deleting a key with the previous key index deletes the current key
- BIP key would only be uploaded correctly initially and corrupted on rekey

Rework the code to better keep track of multiple keys and check for the
key index before deleting the current key

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: add support for 802.3 rx frames

Do not try to access the header when receiving them

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7663: introduce coredump support

Similar to mt7921 devices, introduce coredump support for mt7663 chipset

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>

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 <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt76_connac: move pm data struct in mt76_connac.h

Move pm mt7663 data structure in mt76_connac.h introducing
mt76_connac_pm data struct. This is a preliminary patch to share pm code
between mt7663 and mt7921

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: introduce mt76_vif data structure

Introduce mt76_vif data structure to share common fields between
mt7615_vif and mt7921_vif and create a mcu common library

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: move chainmask in mt76_phy

Move chainmask from driver phy to mt76_phy since it is used by all
drivers. This is a preliminary patch to create a common mcu library used
by mt7615 and mt7921 drivers

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>

mt76: move mac_work in mt76_core module

Move mac_work delayed_work and mac_work_count in mt76_phy since it is
used by all drivers. This is a preliminary patch to create a common mcu
library used by mt7615 and mt7921 drivers

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>

mt76: mt7615: move testmode data from dev to phy

Move per-chip testmode data to mt7615_phy, to properly support
reg_backup and rx status of each band in testmode.

Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Acked-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: reset token when mac_reset happens

Reset token in mt7615_mac_reset_work() to avoid possible leakege.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add vif check in mt7615_update_vif_beacon()

This avoids the WARN_ON(1) calltrace in station mode.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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 <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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 <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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 <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: refactor usb/sdio rate code

Since wtbl workqueue is used only for rate handling, refactor code to
make it more clear

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: testmode: switch ib and wb rssi to array type for per-antenna report

Change ib_rssi and wb_rssi into array type, since they could be reported
by per-antenna.

Reviewed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: run key configuration in mt7615_set_key for usb/sdio devices

Since rate configuration is run holding dev mutex, we can run key
configuration in mt7615_set_key for usb/sdio devices avoiding to
schedule the workqueue

Tested-by: Tested-by: YN Chen <yn.chen@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: fix tkip configuration for mt7615/7663 devices

Fix Tx-Rx MIC overwrite during TKIP hw key configuration

Fixes: 01cfc1b45421 ("mt76: mt7615: add BIP_CMAC_128 cipher support")
Tested-by: YN Chen <yn.chen@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: enable beacon filtering by default for offload fw

In order to reduce cpu cycles, enable hw beacon filter by default if
the device is running offload fw with sta only interfaces.
Disable runtime pm for multi-vif scenario.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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 <gustavoars@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: convert from tx tasklet to tx worker thread

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>

mt76: rely on AQL for burst size limits on tx queueing

Now that AQL works well on all mt76 drivers, completely replace the arbitrary
burst sizing and number of bursts logic for tx scheduling.
For the short period of time in which AQL does not work well yet, limit each
stations to 16 in-flight packets that have no estimated tx time.
This should avoid filling the queue if a station connects and queues up a
large number of packets before rate control information is available, especially
with hardware rate control

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: significantly reduce interrupt load

On 7615 and newer, DMA completion only triggers unmap, but not free of queued
skbs, since pointers to packets are queued internally.
Because of that, there is no need to process the main data queue immediately
on DMA completion.
To improve performance, mask out the DMA data queue completion interrupt and
process the queue only when we receive a txfree event.
This brings the number of interrupts under load down to a small fraction.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix a possible NULL pointer dereference in mt7615_pm_wake_work

Initialize wcid to global_wcid if msta is NULL in mt7615_pm_wake_work
routine since wcid will be dereferenced running mt76_tx()

Fixes: 2b8cdfb28d340 ("mt76: mt7615: wake device before pushing frames in mt7615_tx")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: reschedule runtime-pm receiving a tx interrupt

Reschedule runtime-pm after receiving a tx interrupt.
Update runtime-pm last activity before injecting packets

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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 <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: sdio code must access rate/key regs in preocess context

As usb, sdio relies on mt76 workqueue to configure tx rate or upload
keys to the hw. This is a preliminary patch to add SDIO support 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>

mt76: mt7615: take into account sdio bus configuring txwi

usb and sdio relies on SF architecture. This is a preliminary patch to
add SDIO support 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>

mt76: mt7615: reschedule ps work according to last activity

Reschedule runtime-pm delayed work if there is a new activity when ps
delayed work is already scheduled

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: avoid scheduling runtime-pm during hw scan

Do not schedule ps_work during hw scanning or hw scheduled frequency
scan

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7663u: sync probe sampling with rate configuration

On usb device rate configuration for sampling is performed relying on a
workqueue since it is not possible to access the device in the interrupt
context. Move the configuration of the probe_rate flag in the workqueue
in order to keep probe sampling in sync with actual rate configuration

Fixes: eb99cc95c3b6 ("mt76: mt7615: introduce mt7663u support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add idle-timeout knob in mt7615 debugfs

Introduce idle-timeout knob in mt7615 debugfs in order to configure the
idle time to switch to low-power state

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: enable beacon hw filter for runtime-pm

In order to reduce number of received interrupts and power consumption,
enable hw beacon filter if runtime-pm is enabled

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add runtime-pm knob in mt7615 debugfs

Introduce runtime-pm knob in mt7615 debugfs in order to enable/disable
runtime pm available in offload firmware

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: wake device before pushing frames in mt7615_tx

Queue frames pushed by mac80211 running mt7615_tx if the device is
low-power state. Run wake workqueue in order to swicth to full-power
before transmitting pending frames

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: wake device before pulling packets from mac80211 queues

Make sure the device is in full-power before pulling frames from
mac80211 queues

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: wake device in mt7615_update_channel before access regmap

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>

mt76: mt7615: introduce pm_power_save delayed work

Introduce runtime-pm power_save delayed work used to enable
low-power after an inactivity period

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: introduce mt7615_mutex_{acquire,release} utilities

Introduce mt7615_mutex_{acquire,release} utility routines in order to
switch in full-power/low-power before/after accessing device register-map

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add mt7615_pm_wake utility routine

Introduce mt7615_pm_wake utility routine to wake the device from
runtime low-power state (lower-power state is currently supported by
offload firmware for pcie devices).

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: move mt76 workqueue in common code

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>

mt76: mt7615: implement testmode support

Supports sending a configurable number of packets with a specific rate
and configurable tx power levels / antenna settings, as well as displaying
rx statistics.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: schedule tx tasklet and sta poll on mac tx free

Unlike on earlier chips, DMA completion on MT7615 does not imply actually
having sent out any packets.
Since AQL will prevent filling the hardware queues and will only allow more
packets to be passed to the driver after tx completion, it makes much more
sense to schedule the tx tasklet there.
This is also needed for scheduling tx in testmode support

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: re-enable offloading of sequence number assignment

Preparation for supporting more offload features

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: overwrite qid for non-bufferable mgmt frames

Overwrite hw queue id for non-bufferable management frames if the hw
support always txq (altxq) in order to be in sync with mac txwi code

Fixes: cdad4874057d ("mt76: mt7615: add dma and tx queue initialization for MT7622")
Fixes: f40ac0f3d3c0 ("mt76: mt7615: introduce mt7663e support")
Suggested-by: Felix Fietkau <nbd@nbd.name>
Tested-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix hw queue mapping

mt7622/mt7663 chipsets rely on a fixed reverse queue map order respect
to mac80211 one:
- q(0): IEEE80211_AC_BK
- q(1): IEEE80211_AC_BE
- q(2): IEEE80211_AC_VI
- q(3): IEEE80211_AC_VO

Fixes: cdad4874057d ("mt76: mt7615: add dma and tx queue initialization for MT7622")
Fixes: f40ac0f3d3c0 ("mt76: mt7615: introduce mt7663e support")
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Co-developed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: overwrite qid for non-bufferable mgmt frames

Overwrite hw queue id for non-bufferable management frames if the hw
support always txq (altxq) in order to be in sync with mac txwi code

Fixes: cdad4874057d ("mt76: mt7615: add dma and tx queue initialization for MT7622")
Fixes: f40ac0f3d3c0 ("mt76: mt7615: introduce mt7663e support")
Suggested-by: Felix Fietkau <nbd@nbd.name>
Tested-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix hw queue mapping

mt7622/mt7663 chipsets rely on a fixed reverse queue map order respect
to mac80211 one:
- q(0): IEEE80211_AC_BK
- q(1): IEEE80211_AC_BE
- q(2): IEEE80211_AC_VI
- q(3): IEEE80211_AC_VO

Fixes: cdad4874057d ("mt76: mt7615: add dma and tx queue initialization for MT7622")
Fixes: f40ac0f3d3c0 ("mt76: mt7615: introduce mt7663e support")
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Co-developed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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 <sean.wang@mediatek.com>
Fixes: d3377b78cec6 ("mt76: add HE phy modes and hardware queue")
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: fix per-driver wcid range checks after wcid array size bump

All drivers before MT7915 have a limit of 128 WCID entries. Stop relying
on ARRAY_SIZE(dev->mt76.wcid), since it no longer reflects that limit.

Fixes: 49e649c3e0a6 ("mt76: adjust wcid size to support new 802.11ax generation")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: introduce remain_on_channel support

Introduce remain_on_channel support to mt7615 driver if the device is
running offload firmware

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>

mt76: mt7615: introduce PM support

Introduce suspend/resume to mt7615e driver

Co-developed-by: Wan-Feng Jiang <Wan-Feng.Jiang@mediatek.com>
Signed-off-by: Wan-Feng Jiang <Wan-Feng.Jiang@mediatek.com>
Co-developed-by: Soul Huang <Soul.Huang@mediatek.com>
Signed-off-by: Soul Huang <Soul.Huang@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>

mt76: mt7615: set spatial extension index

The vendor driver sets this in firmware rate control (which we don't use)

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix tx status rate index calculation

A switch from one rate index to the next only happens when tx count from
the current slot is greater than MT7615_RATE_RETRY, which is 1 has to be
subtracted from count, instead of added to it.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: do not adjust MAC timings if the device is not running

Avoids register writes and MAC start/stop when the hardware isn't ready for it

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: adjust timing in mt7615_mac_set_timing to match fw/hw values

Slightly improves performance

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: never use an 802.11b CF-End rate on 5GHz

Sometimes mt7615_mac_set_timing gets called while the slot time is still
configured to 20. Ensure that in this case it always uses the OFDM CFend
rate.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: rework mt7615_mac_sta_poll for usb code

Since usb code can't access device registers in interrupt context, move
rcu_read_lock/rcu_read_unlock in mt7615_poll_tx routine. Moreover loop
over a local msta list in mt7615_mac_sta_poll since mt7663u driver will
not be able to complete the inner while loop before sta_poll_list list
is refilled by mt7615_mac_add_txs/mt7615_mac_fill_rx

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7663: introduce 802.11 PS support in sta mode

Enable 802.11 power-save support available in mt7663 firmware

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>

mt76: mt7615: enable scs for mt7663 driver

Add missing register definitions in order to enable sensitivity tuning
for mt7663 driver

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: introduce mt7663u support

Introduce support for mt7663u 802.11ac 2x2:2 chipset to mt7615 driver.
Main difference respect to pcie code base is the usb code needs to
configure wtbl from non-atomic context

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>

mt76: mt7615: move core shared code in mt7615-common module

Create mt7615-common module in order to collect shared code between usb
and mmio code. Move the following source files in mt7615-common module:
- main.c
- init.c
- mcu.c
- mac.c
- debugfs.c
- eeprom.c
- trace.c

Create the following source files for mmio only source code and move them
in mt7615e module:
- pci_init.c
- dma.c
- pci_mac.c

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix possible deadlock in mt7615_stop

make mac_work per phy instead of per device and fix a possible deadlock
in mt7615_stop since mt7615_mac_work runs holding mt76 mutex

Fixes: fdd2e570764c2 ("mt76: mt7615: add dual-phy support for mac80211 ops")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7663: fix DMA unmap length

Fix DMA unmap length for mt7663e devices in mt7615_txp_skb_unmap_hw

Fixes: f40ac0f3d3c0 ("mt76: mt7615: introduce mt7663e support")
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Co-developed-by: Soul Huang <soul.huang@mediatek.com>
Signed-off-by: Soul Huang <soul.huang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>

mt76: mt7622: fix DMA unmap length

Fix DMA unmap length estimation in mt7615_txp_skb_unmap_hw for mt7622
chipset

Fixes: 6aa4ed7927f1 ("mt76: mt7615: implement DMA support for MT7622")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>

mt76: mt7615: fix possible division by 0 in mt7615_mac_update_mib_stats

Check that val is not zero before aggr_per estimation in order to avoid a
possible division by 0

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: introduce mt7615_wtbl_desc data structure

Generalize mt7615_rate_desc introducing mt7615_wtbl_desc and
mt7615_key_desc data structures in order to configure the hw wtbl
in a non-atomic context for usb devices

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: rework wtbl key configuration

Remove key dependency from mt7615_mac_wtbl_update_key and export
mt7615_mac_wtbl_update_key, mt7615_mac_wtbl_update_pk and
mt7615_mac_wtbl_update_cipher in order to reuse them in usb code.
Move mt7615_mac_get_cipher in mac.h

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: move mt7615_mac_wtbl_addr in mac.h

Move mt7615_mac_wtbl_addr in mac.h and add inline qualifier in order to
be reused adding usb support to mt7615 driver

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: introduce mt7615_mac_update_rate_desc routine

Move register configuration out of mt7615_mac_set_rates since usb
driver can't access device register in interrupt context. Introduce
mt7615_mac_update_rate_desc routine to report rate info to
mt7615_mac_set_rates

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>

mt76: mt7615: introduce mt7663u support to mt7615_write_txwi

Extend mt7615_write_txwi routine to support usb txwi configuration

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>

mt76: mt7615: introduce scheduled scan support

Introduce scheduled scan support for mt7663e devices

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>

mt76: mt7615: introduce hw scan support

Introduce hw scan support to mt7663e 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>

mt76: mt7663: disable RDD commands

Disable dfs RDD mcu commands for mt7663 driver since they are not
currently supported by the 7663 firmware

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>

mt76: mt7615: make scs configurable per phy

Make scs configurable per phy since most of the chipsets do not
support dbdc

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7663: enable nf estimation

Enable Noise floor estimation for mt7663 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>

mt76: mt7663: fix mt7615_mac_cca_stats_reset routine

Fix PHYMUX_5 register definition for mt7663 in
mt7615_mac_cca_stats_reset routine

Fixes: f40ac0f3d3c0 ("mt76: mt7615: introduce mt7663e support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add more useful Tx mib counters

Add ba_miss_cnt and ampdu_per in mib_stats.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: cleanup mib related defines and structs

Simplify mib macros and use proper type for related counters.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: enable aggr_stats for both phy

Use bottom half of aggr_stats for second phy.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: introduce mt7663e support

Introduce support for mt7663e 802.11ac 2x2:2 chipset to mt7615 driver.

Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Co-developed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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 <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Co-developed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: move more mcu commands in mt7615_mcu_ops data structure

Move mt7615_mcu_set_beacon_offload, mt7615_mcu_set_dev and
mt7615_mcu_set_bss routine in mt7615_mcu_ops data structure.
This is a preliminary patch to support mt7663 firmware

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: remove a stray if statement

This if statement was supposed to be deleted, but it wasn't. It means
that we sometimes don't set the sensitivity correctly.

Fixes: 2cad515ece8a ("mt76: mt7615: add missing settings for simultaneous dual-band support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix monitor injection of beacon frames

When injecting beacon frames via monitor interface, they must not be sent to
the beacon hardware queue, because they don't follow normal hardware beacon tx
rules.
Fix sending them by adding a flag to mt7615_mac_write_txwi that selects the
beacon queue for tx, and use it only from mt7615_mcu_set_bcn.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: Introduce mt76_mcu data structure

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>

mt76: mt7615: rework rx phy index handling

Overwriting the RMAC_CHFREQ register is not reliable enough, as the firmware
could potentially write it again.
Since there is no PHY index indication in the rx info, we need to use another
way:

If both PHYs are using different channels, find the PHY where chfreq matches
the register value.

The only corner case remaining is when both PHYs are using the same channel.
In that case, the per-packet noise value on the primary PHY will have
information belonging to the chains of the secondary PHY from the previous
received packet of that PHY. The secondary PHY will set noise to 0 for extra
chains.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: implement hardware reset support

When the firmware detects a problem, it needs the host to stop/reset DMA and
resume it again when the hardware state has been reset.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: implement DMA support for MT7622

MT7622 does not have the CR4 microcontroller sitting in the data path.
Because of that, it uses the chip's native tx descriptor format instead of
something parsed and converted by the firmware.

Co-developed-by: Shayne Chen <shayne.chen@mediatek.com>
Co-developed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>

mt76: mt7615: initialize radar specs from host driver

Introduce dfs radar pattern specs in mt7615 driver in order to make
dfs debugging easier. Radar pulse/pattern thresholds are taken from
vendor SDK.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add tracing support

Introduce token tracing support in mt7615_mac_tx_free routine

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: move mac_txdone tracepoint in mt76 module

Move mac_txdone tracepoint in common code in order to
be reused by mt7603 and mt7615 drivers

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add per-phy mib statistics

Update per-phy mib counters every 500ms.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add missing settings for simultaneous dual-band support

MT7615 supports dual-wiphy which means that it can run on 2.4G and 5GHz
channels simultaneously, and driver should configure each band.

Add missing register settings, and refine band related definitions to
avoid duplicate codes.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: measure channel noise and report it via survey

Read measurements every 100 ms and build a simple moving average

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add set_coverage class support

Add the capability to configure acktimeout for mt7615 driver. Moreover
configure slottime according to the value provided by mac80211

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: Fix build with older compilers

Some compilers (tested with 4.8.5 from CentOS 7) fail properly process
FIELD_GET inside an inline function, which ends up in a BUILD_BUG_ON.
Convert inline function to a macro.

Fixes commit bf92e7685100 ("mt76: mt7615: add support for per-chain
signal strength reporting")
Reported in https://lkml.org/lkml/2019/9/21/146

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Pablo Greco <pgreco@centosproject.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: select the correct tx queue for frames sent to the second phy

Beacons and management frames need to explicitly select the alternate tx
queues in order to be sent out on the right phy

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add multiple wiphy support to the rx path

Program the RMAC CHFREQ registers to properly indicate the band that the
frames are received on.
Add some sanity checks to the programmed values, because the firmware
programs these registers differently

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add multiple wiphy support to the dfs support code

There are two DFS detectors on the chip. When using 160 MHz channel bandwidth
(not supported in dual-wiphy mode), both are used. Otherwise, one detector is
used per wiphy.
Rework the code to start/stop them separately per phy and to indicate the
radar event on the right phy based on the detector index

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: remove useless MT_HW_RDD0/1 enum

Writing 0/1 is shorter and just as clear

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add multiple wiphy support for smart carrier sense

Use per-phy radio stats and tuning registers

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add dual-phy support for mac80211 ops

Allows them to be used by a separately registered wiphy later

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: move ampdu_ref from mt76_dev to driver struct

It is only used by the driver

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: add multiple wiphy support to mt76_get_min_avg_rssi

Allow tracking clients of both wiphys separately

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: move txpower and antenna mask to struct mt76_phy

Adds multiple wiphy support to mt76_get_txpower

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: move state from struct mt76_dev to mt76_phy

Allows keeping per-wiphy state separate

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: move channel state to struct mt76_phy

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>

mt76: fix possible out-of-bound access in mt7615_fill_txs/mt7603_fill_txs

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>

mt76: mt7615: track tx/rx airtime for airtime fairness

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 routine

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 time

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 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 <nbd@nbd.name>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: unify channel survey update code

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: track rx airtime for airtime fairness and survey

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_dev

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: report rx a-mpdu subframe status

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: mt7615: collect aggregation stats

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: mt7615: introduce mt7615_txwi_to_txp utility routine

Introduce mt7615_txwi_to_txp utility routine to convert mt76_txwi_cache
into mt7615_txp and remove duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: fix some checkpatch warnings

This fixes the following checkpatch warnings:
CHECK: Alignment should match open parenthesis
CHECK: No space is necessary after a cast

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add BIP_CMAC_128 cipher support

Refactor mt7615_mac_wtbl_set_key and introduce
the following routines in order to configure wtbl entries
and properly add hw support to BIP_CMAC_128 cipher:
- mt7615_mac_wtbl_update_cipher
- mt7615_mac_wtbl_update_pk
- mt7615_mac_wtbl_update_key

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: enable survey support

Introduce channel survey support for mt7615 driver

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add Smart Carrier Sense support

Introduce Smart Carrier Sense support in order to tune device
sensitivity according to RTS error rate and False CCA reported by the
radio

Tested-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix some checkpatch warnings

This fixes the following checkpatch warnings:

WARNING: Improper SPDX comment style
Fix blank lines.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add 4 WMM sets support

Hardware supports 4 sets of WMM that should be put to good use.
And fix incorrect queue mapping in mt7615_conf_tx().

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add set_key_cmd and mt76_wcid to mt7615_mac_wtbl_set_key signature

Introduce set_key_cmd and mt76_wcid pointer to mt7615_mac_wtbl_set_key
signature and do not set key to NULL if cmd is DISABLE_KEY.
This is a preliminary patch to add BIP_CMAC_128 hw support to mt7615
driver

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: introduce mt7615_mac_wtbl_set_key routine

Add mt7615_mac_wtbl_set_key routine to configure wtbl key parameter
directly from host cpu. This is a preliminary patch to add BIP_CMAC_128
hw support. Moreover add static qualifier to mt7615_mac_get_key_info
routine

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add mt7615_mac_wtbl_addr routine

Introduce mt7615_mac_wtbl_addr rouinte to compute sta wtbl address.
This is a preliminary patch to update wtbl key directly from host
processor

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: move mt7615_mac_get_key_info in mac.c

This is a preliminary patch to update wtbl key directly from host
processor

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix invalid fallback rates

Only decrement the rate index on duplicate rates if it is not already 0

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix PS buffering of action frames

Bufferable management frames need to be put in the data queue, otherwise
they will not be buffered when the receiver is asleep.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: fix using VHT STBC rates

The hardware expects MT_TX_RATE_NSS to be filled with the number of
space/time streams. For non-STBC rates, this is equal to nss.
For 1-stream STBC, this needs to be set to 2.
This is relevant for VHT rates only, on HT, the value is derived from MCS
internally.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: sync with mt7603 rate control changes

- Store the previous and current rate set in the driver + the TSF value
at the time of the switch.
- Use the tx status TSF value to determine which rate set needs to be used
as reference.
- Report only short or long GI rates for a single status event, not a mix.
- The hardware reports the last used rate index. Use it along with the
retry count to figure out what rate was used for the first attempt.
- Use the same retry count value for all rate slots to make this calculation
work.
- Derive the probe rate from the current rateset instead of the skb cb
- Do not wait for a status report for the probe frame before removing the
probe rate from the rate table. Do it immediately after it was referenced
in a tx status report.
- Use the first half of the first rate retry budget for the probe rate
in order to avoid using too many retries on that rate
- Switch from lower rates to higher rates more conservatively
- enable hardware rate up/down selection

Reviewed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: reset rate index/counters on rate table update

These values must be initialized to zero, otherwise the hardware could
reuse previous values, especially the rate index

Reviewed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: move mt7615_mcu_set_rates to mac.c

It bypasses the MCU, so it does not belong in mcu.c
Also make mt7615_mac_tx_rate_val static

Reviewed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add hw dfs pattern detector support

Add hw radar detection support to mt7615 driver in order to
unlock dfs channels on 5GHz band

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: add support for per-chain signal strength reporting

Fill in RX status->chain_signal to avoid empty value.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: Remove set but not used variables 'pid' and 'final_mpdu'

Fixes gcc '-Wunused-but-set-variable' warnings:

drivers/net/wireless/mediatek/mt76/mt7603/mac.c: In function mt7603_fill_txs:
drivers/net/wireless/mediatek/mt76/mt7603/mac.c:969:5: warning: variable pid set but not used [-Wunused-but-set-variable]
drivers/net/wireless/mediatek/mt76/mt7603/mac.c:961:7: warning: variable final_mpdu set but not used [-Wunused-but-set-variable]
drivers/net/wireless/mediatek/mt76/mt7615/mac.c: In function mt7615_fill_txs:
drivers/net/wireless/mediatek/mt76/mt7615/mac.c:555:5: warning: variable pid set but not used [-Wunused-but-set-variable]
drivers/net/wireless/mediatek/mt76/mt7615/mac.c:552:19: warning: variable final_mpdu set but not used [-Wunused-but-set-variable]

They are never used, so can be removed.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: move mt76_get_rate in mt76-module

Move mt7603_get_rate in mac80211.c and rename it to mt76_get_rate
since it is shared between mt7603 and mt7615 drivers

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: move mt76_insert_ccmp_hdr in mt76-module

Move mt7615_insert_ccmp_hdr in mac80211.c and rename it in
mt76_insert_ccmp_hdr since it is shared between mt7603 and mt7615
drivers

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7615: do not process rx packets if the device is not initialized

Fix following crash that occurs when the driver is processing rx packets
while the device is not initialized yet

$ rmmod mt7615e
[ 67.210261] mt7615e 0000:01:00.0: Message -239 (seq 2) timeout
$ modprobe mt7615e
[ 72.406937] bus=0x1, slot = 0x0, irq=0x16
[ 72.436590] CPU 0 Unable to handle kernel paging request at virtual address 00000004, epc == 8eec4240, ra == 8eec41e0
[ 72.450291] mt7615e 0000:01:00.0: Firmware is not ready for download
[ 72.457724] Oops[#1]:
[ 72.470494] mt7615e: probe of 0000:01:00.0 failed with error -5
[ 72.474829] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.14.114 #0
[ 72.498702] task: 805769e0 task.stack: 80564000
[ 72.507709] $ 0 : 00000000 00000001 00000000 00000001
[ 72.518106] $ 4 : 8f704dbc 00000000 00000000 8f7046c0
[ 72.528500] $ 8 : 00000024 8045e98c 81210008 11000000
[ 72.538895] $12 : 8fc09f60 00000008 00000019 00000033
[ 72.549289] $16 : 8f704d80 e00000ff 8f0c7800 3c182406
[ 72.559684] $20 : 00000006 8ee615a0 4e000108 00000000
[ 72.570078] $24 : 0000004c 8000cf94
[ 72.580474] $28 : 80564000 8fc09e38 00000001 8eec41e0
[ 72.590869] Hi : 00000001
[ 72.596582] Lo : 00000000
[ 72.602319] epc : 8eec4240 mt7615_mac_fill_rx+0xac/0x494 [mt7615e]
[ 72.614953] ra : 8eec41e0 mt7615_mac_fill_rx+0x4c/0x494 [mt7615e]
[ 72.627580] Status: 11008403 KERNEL EXL IE
[ 72.635899] Cause : 40800008 (ExcCode 02)
[ 72.643860] BadVA : 00000004
[ 72.649573] PrId : 0001992f (MIPS 1004Kc)
[ 72.657704] Modules linked in: mt7615e pppoe ppp_async pppox ppp_generic nf_conntrack_ipv6 mt76x2e mt76x2_common mt76x02_lib mt7603e mt76 mac80211 iptable_nat ipt_REJECT ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_nat xt_mu]
[ 72.792717] Process swapper/0 (pid: 0, threadinfo=80564000, task=805769e0, tls=00000000)
[ 72.808799] Stack : 8f0c7800 00000800 8f0c7800 8032b874 00000000 40000000 8f704d80 8ee615a0
[ 72.825428] 8dc88010 00000001 8ee615e0 8eec09b0 8dc88010 8032b914 8f3aee80 80567d20
[ 72.842055] 00000000 8ee615e0 40000000 8f0c7800 00000108 8eec9944 00000000 00000000
[ 72.858682] 80508f10 80510000 00000001 80567d20 8ee615a0 00000000 00000000 8ee61c00
[ 72.875308] 8ee61c40 00000040 80610000 80580000 00000000 8ee615dc 8ee61a68 00000001
[ 72.891936] ...
[ 72.896793] Call Trace:
[ 72.901649] [<8eec4240>] mt7615_mac_fill_rx+0xac/0x494 [mt7615e]
[ 72.913602] [<8eec09b0>] mt7615_queue_rx_skb+0xe4/0x12c [mt7615e]
[ 72.925734] [<8eec9944>] mt76_dma_cleanup+0x390/0x42c [mt76]
[ 72.936988] Code: ae020018 8ea20004 24030001 <94420004> a602002a 8ea20004 90420000 14430003 a2020034
[ 72.956390]
[ 72.959676] ---[ end trace f176967739edb19f ]---

Fixes: 04b8e65922f6 ("mt76: add mac80211 driver for MT7615 PCIe-based chipsets")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: fix endianness sparse warnings

Fix many warnings with incorrect endian assumptions.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Reviewed-by: Stanislaw Gruszka <sgruszka@redhat.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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 <ryder.lee@mediatek.com>
Signed-off-by: Roy Luo <royluo@google.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>