185 Commits
Author SHA1 Message Date
Felix Fietkau f34b1ae42c 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 <[email protected]>
2019-09-26 12:42:08 +02:00
Felix Fietkau b0429879ea mt76: rename mt76_driver_ops txwi_flags to drv_flags and include tx aligned4
This reduces the struct size and is useful for adding more flags later

Signed-off-by: Felix Fietkau <[email protected]>
2019-09-26 12:42:08 +02:00
Lorenzo BianconiandFelix Fietkau 0b01aceeef mt76: mt76x02u: move mt76x02u_mac_start in mt76x02-usb module
Unify mt76x02u_mac_start between mt76x2u and mt76x0u since the
code is shared between both drivers

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-09-26 12:04:20 +02:00
Lorenzo BianconiandFelix Fietkau 0355b7ae2b mt76: mt76x2: move mt76x02_mac_reset_counters in mt76x02_mac_start
Move mt76x02_mac_reset_counters in mt76x02_mac_start and get rid of
mt76x2_mac_start since it is just a wrapper for mt76x02_mac_start

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-09-26 12:04:20 +02:00
Lorenzo BianconiandFelix Fietkau f3792b550f mt76: mt76x02: move mac_reset_counter in mt76x02_lib module
Unify mac_reset_counter routine and move it in mt76x02_lib module
since it is shared by all mt76x02 drivers (pci/usb)

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-09-26 12:04:20 +02:00
Lorenzo BianconiandFelix Fietkau a7fa326039 mt76: add default implementation for mt76_sw_scan/mt76_sw_scan_complete
Introduce a default implementation for mt76_sw_scan and
mt76_sw_scan_complete in mt76 module and remove duplicated code
since most of the drivers share the same implementation

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-08-22 09:26:30 +02:00
Lorenzo BianconiandFelix Fietkau c6dabfe953 mt76: mt76x02u: enable survey support
Introduce channel survey support for mt76x2u and mt76x0u drivers

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-08-21 13:02:33 +02:00
Lorenzo BianconiandFelix Fietkau 20f0c19672 mt76: mt76x02: introduce mt76x02_pre_tbtt_enable and mt76x02_beacon_enable macros
Improve code readability introducing mt76x02_pre_tbtt_enable and
mt76x02_beacon_enable utility macros

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-08-21 13:02:33 +02:00
Ryder LeeandFelix Fietkau f625afcedc mt76: switch to SPDX tag instead of verbose boilerplate text
No functional change intended.

Add SPDX identifiers to all remaining files in /mt76.

Signed-off-by: Ryder Lee <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-08-20 15:22:20 +02:00
Ryder LeeandFelix Fietkau c415c676e2 mt76: mt76x02: fix some checkpatch warnings
This fixes the following checkpatch warnings:

ERROR: code indent should use tabs where possible
CHECK: Alignment should match open parenthesis
CHECK: No space is necessary after a cast
CHECK: Please don't use multiple blank lines
CHECK: Avoid precedence issues in macro
WARNING: Statements should start on a tabstop
WARNING: Unnecessary space before function pointer arguments

Signed-off-by: Ryder Lee <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-08-20 15:22:20 +02:00
Lorenzo BianconiandFelix Fietkau 9dd1089a29 mt76: mt76u: reduce rx memory footprint
Reduce rx memory footprint allocating just one SG buffer since for the
moment we support just 3839B as maximal size of an A-MSDU.
Introduce different SG_MAX_SIZE definitions for TX and RX sides.
Moreover set q->buf_size to PAGE_SIZE even for SG case.

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-06-25 13:19:51 +02:00
Felix Fietkau 47ddf4b722 mt76: revert support for TX_NEEDS_ALIGNED4_SKBS
This didn't bring the performance benefit that I had hoped for, so the mac80211
patch for this will not make it upstream

Signed-off-by: Felix Fietkau <[email protected]>
2019-06-24 23:56:23 +02:00
Lorenzo BianconiandFelix Fietkau 0d4719c327 mt76: mt76x02: run mt76x02_edcca_init atomically in mt76_edcca_set
Run mt76x02_edcca_init atomically in mt76_edcca_set since it runs
concurrently with calibration work and mt76x2_set_channel.
Moreover perform phy calibration atomically

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-06-07 18:25:51 +02:00
Lorenzo BianconiandFelix Fietkau da3514f6de mt76: mt76x2: move mutex_lock inside mt76x2_set_channel
This is a preliminary patch to run mt76x02_edcca_init atomically

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-06-07 18:25:51 +02:00
Lorenzo BianconiandFelix Fietkau 18386eef1d mt76: mt76x2u: remove mt76x02_edcca_init in mt76x2u_set_channel
Remove mt76x02_edcca_init in mt76x2u_set_channel since it is already
run by mt76x2u_phy_channel_calibrate performing channel calibration

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-06-07 18:25:51 +02:00
Lorenzo BianconiandFelix Fietkau bd32a93e49 mt76: mt76x02: remove enable from mt76x02_edcca_init signature
Remove enable parameter from mt76x02_edcca_init routine signature since
it is always true

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-06-07 18:25:51 +02:00
Felix Fietkau 77d0e3378b mt76: fix setting chan->max_power
When setting chan->max_power after registering the wiphy, chan->max_reg_power
needs to be used as a limit

Signed-off-by: Felix Fietkau <[email protected]>
2019-05-31 22:03:13 +02:00
Lorenzo BianconiandFelix Fietkau 6e790e106a mt76: move pre_tbtt_tasklet in mt76_dev
Move pre_tbtt_tasklet tasklet in mt76_dev data structure since
it is used by all drivers

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-04-30 17:52:28 +02:00
Stanislaw GruszkaandFelix Fietkau 0e674c50a5 mt76x02: remove bogus mutex usage
mac80211 .start(), .stop() callbacks are never called concurrently with
other callbacks. The only concurencly is with mt76 works which we cancel
on stop() and schedule on start().

This fixes possible deadlock on cancel_delayed_work_sync(&dev->mac_work)
as mac_work also take mutex.

Signed-off-by: Stanislaw Gruszka <[email protected]>
2019-04-29 13:37:59 +02:00
Stanislaw GruszkaandFelix Fietkau 6c1cab9aba mt76usb: fix tx/rx stop
Disabling tasklets on stopping rx/tx is wrong. If blocked tasklet
is scheduled and we remove device we will get 100% cpu usage:

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
    9 root      20   0       0      0      0 R  93.8   0.0   1:47.19 ksoftirqd/0

by infinite loop in tasklet_action_common() and eventuall crash on next
mt76usb module load:

[ 2068.591964] RIP: 0010:tasklet_action_common.isra.17+0x66/0x100
[ 2068.591966] Code: 41 89 f5 eb 25 f0 48 0f ba 33 00 0f 83 b1 00 00 00 48 8b 7a 20 48 8b 42 18 e8 56 a3 b5 00 f0 80 23 fd 48 89 ea 48 85 ed 74 53 <48> 8b 2a 48 8d 5a 08 f0 48 0f ba 6a 08 01 72 0b 8b 42 10 85 c0 74
[ 2068.591968] RSP: 0018:ffff98758c34be58 EFLAGS: 00010206
[ 2068.591969] RAX: ffff98758e6966d0 RBX: ffff98756e69aef8 RCX: 0000000000000006
[ 2068.591970] RDX: 01060a053d060305 RSI: 0000000000000006 RDI: ffff98758e6966d0
[ 2068.591971] RBP: 01060a053d060305 R08: 0000000000000000 R09: 00000000000203c0
[ 2068.591971] R10: 000003ff65b34f08 R11: 0000000000000001 R12: ffff98758e6966d0
[ 2068.591972] R13: 0000000000000006 R14: 0000000000000040 R15: 0000000000000006
[ 2068.591974] FS:  0000000000000000(0000) GS:ffff98758e680000(0000) knlGS:0000000000000000
[ 2068.591975] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2068.591975] CR2: 00002c5f73a6cc20 CR3: 00000002f920a001 CR4: 00000000003606e0
[ 2068.591977] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2068.591978] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2068.591978] Call Trace:
[ 2068.591985]  __do_softirq+0xe3/0x30a
[ 2068.591989]  ? sort_range+0x20/0x20
[ 2068.591990]  run_ksoftirqd+0x26/0x40
[ 2068.591992]  smpboot_thread_fn+0xc5/0x160
[ 2068.591995]  kthread+0x112/0x130
[ 2068.591997]  ? kthread_create_on_node+0x40/0x40
[ 2068.591998]  ret_from_fork+0x35/0x40
[ 2068.591999] Modules linked in: ccm arc4 fuse rfcomm cmac bnep sunrpc snd_hda_codec_hdmi snd_soc_skl snd_soc_core snd_soc_acpi_intel_match snd_hda_codec_realtek snd_soc_acpi snd_hda_codec_generic snd_soc_skl_ipc snd_soc_sst_ipc snd_soc_sst_dsp snd_hda_ext_core iTCO_wdt snd_hda_intel intel_rapl iTCO_vendor_support x86_pkg_temp_thermal intel_powerclamp btusb mei_wdt coretemp btrtl snd_hda_codec btbcm btintel intel_cstate snd_hwdep intel_uncore uvcvideo snd_hda_core videobuf2_vmalloc videobuf2_memops intel_rapl_perf wmi_bmof videobuf2_v4l2 intel_wmi_thunderbolt snd_seq bluetooth joydev videobuf2_common snd_seq_device snd_pcm videodev media i2c_i801 snd_timer idma64 ecdh_generic intel_lpss_pci intel_lpss mei_me mei ucsi_acpi typec_ucsi processor_thermal_device intel_soc_dts_iosf intel_pch_thermal typec thinkpad_acpi wmi snd soundcore rfkill int3403_thermal int340x_thermal_zone int3400_thermal acpi_thermal_rel acpi_pad pcc_cpufreq uas usb_storage crc32c_intel i915 i2c_algo_bit nvme serio_raw
[ 2068.592033]  drm_kms_helper e1000e nvme_core drm video ipv6 [last unloaded: cfg80211]

Fortunate thing is that this not happen frequently, as scheduling
tasklet on blocked state is very exceptional, though might happen.

Due to different RX/TX tasklet processing fix is different for those.

For RX we have to assure rx_tasklet do fail to resubmit buffers
by poisoning urb's and kill the tasklet.

For TX we need to handle all stop cases properly (suspend, module
unload, device removal).

Signed-off-by: Stanislaw Gruszka <[email protected]>
2019-04-29 13:37:59 +02:00
Stanislaw GruszkaandFelix Fietkau bc9baa7b12 mt76x02u: remove bogus stop on suspend
On suspend mac80211 .stop callback is called before .suspend(), so
hw mac is already stopped and we do not have to do this again.

Signed-off-by: Stanislaw Gruszka <[email protected]>
2019-04-29 13:37:58 +02:00
Felix Fietkau 98c5359e96 Revert "mt76: fix potential deadlock on cancelling workqueues"
This reverts commit 3a7e6bbac3
to be replaced by upstream patch.

Signed-off-by: Felix Fietkau <[email protected]>
2019-04-29 13:37:40 +02:00
Lorenzo BianconiandFelix Fietkau a7dfcf2e24 mt76: move mac_work in mt76_dev
Move mac_work delayed work in mt76_dev data structure since
it is used by all drivers and it will be reused adding mac work to
mt7615

Signed-off-by: Lorenzo Bianconi <[email protected]>
2019-04-25 12:04:34 +02:00
Lorenzo BianconiandFelix Fietkau 61311d9b30 mt76: introduce mt76_free_device routine
Move mt76_tx_free in mt76_free_device routine in order to
unmap all txwi descriptors at module unload

Signed-off-by: Lorenzo Bianconi <[email protected]>
2019-04-25 12:04:34 +02:00
Lorenzo BianconiandFelix Fietkau 7fc5f925ec mt76x2u: remove duplicated entry in mt76x2u_device_table
Remove duplicated entry in mt76x2u_device_table since Alfa AWUS036ACM
and Aukey USB-AC1200 have the same ids

Fixes: 62a25dc56990a ("mt76x2u: Add support for Alfa AWUS036ACM")
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-04-25 12:04:27 +02:00
Stanislaw GruszkaandFelix Fietkau ffddb685a6 mt76x02u: check chip version on probe
Since some USB device IDs are duplicated between mt76x0u, mt7601u
and mt76x2u device, check chip version on probe and return error if
not match the driver.

Don't think this is serious issue, probe most likely will fail at
some other point for wrong device, but we do not have to configure
it if we know is not our device.

Reported-by: Xose Vazquez Perez <[email protected]>
Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
2019-04-25 12:04:20 +02:00
Felix Fietkau a11b67348a mt76: fix tx power issues
- tx power is stored in the channels after ieee80211_register_hw, so
  chan->orig_mpwr needs to be updated as well
- for non-TSSI devices, mt76x2e needs to use a different target power value
  from the EEPROM
- fix a rounding error in a few places (need to round up, not down)

Signed-off-by: Felix Fietkau <[email protected]>
2019-03-27 12:54:48 +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 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
Stanislaw GruszkaandFelix Fietkau d4c740f071 mt76x02u: add mt76_release_buffered_frames
Create software MT_TXQ_PSD queue for USB and map it to MT_TXQ_VO
since we do not have USB endpoint for PSD. This should make
mt76_release_buffered_frames() work by sending released frames
via MT_TXQ_VO.

Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-03-24 08:22:22 +01:00
Stanislaw GruszkaandFelix Fietkau dcccc04adc mt76x02u: add sta_ps
Add sta_ps callback but dont set WCID drop sicne registers for USB
can not be accessed from tasklet context.

Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-03-24 08:22:22 +01:00
Stanislaw GruszkaandFelix Fietkau 6370485deb mt76x02: introduce beacon_ops
Enabling/disableing TBTT and beacon will be diffrent for USB. Introduce
beacon_ops to encapsulate that and implement it for MMIO. USB
implementation is noop for now.

Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-03-24 08:21:28 +01:00
Stanislaw GruszkaandFelix Fietkau f2a18f5a7f mt76x02: introduce mt76x02_beacon.c
Move most of beaconing code into separate file and separate beacon
initialization for USB and MMIO as pre TBTT implementation for USB
will be different.

Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2019-03-24 08:20:43 +01:00
Felix Fietkau 3a7e6bbac3 mt76: fix potential deadlock on cancelling workqueues
mutex->lock must not be held while cancelling workqueues, because it is held
by the workqueue items themselves

Signed-off-by: Felix Fietkau <[email protected]>
2019-03-22 13:29:47 +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
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
Stanislaw GruszkaandFelix Fietkau abcb544579 mt76x02: do not enable RTS/CTS by default
My commit 26a7b5473191 ("mt76x02: set protection according to ht
operation element") enabled by default RTS/CTS protection for OFDM
and CCK traffic, because MT_TX_RTS_CFG_THRESH is configured to non
0xffff by initvals and .set_rts_threshold callback is not called by
mac80211 on initialization, only on user request or during
ieee80211_reconfig() (suspend/resuem or restart_hw).

Enabling RTS/CTS cause some problems when sending probe request
frames by hcxdumptool penetration tool, but I expect it can cause
other issues on different scenarios.

Restore previous setting of RTS/CTS being disabled by default for
OFDM/CCK by changing MT_TX_RTS_CFG_THRESH initvals to 0xffff.

Fixes: 26a7b5473191 ("mt76x02: set protection according to ht operation element")
Signed-off-by: Stanislaw Gruszka <[email protected]>
2019-03-12 16:46:26 +01:00
Felix Fietkau 8ee225996f mt76: mt76x2: fix 2.4 GHz channel gain settings
AGC register 35, 37 override for the low gain setting should only be done
on 5 GHz. Also, 2.4 GHz needs a different value for register 35

Signed-off-by: Felix Fietkau <[email protected]>
2019-03-03 15:12:19 +01:00
Felix Fietkau d2c682325d mt76: mt76x2: fix external LNA gain settings
Devices with external LNA need different values for AGC registers 8 and 9

Signed-off-by: Felix Fietkau <[email protected]>
2019-03-03 15:10:44 +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
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
Felix Fietkau 5e7ecce133 mt76: mt76x2: unify mt76x2[u]_mac_resume
They are now the same and short enough to be turned into an inline function

Signed-off-by: Felix Fietkau <[email protected]>
2019-02-25 17:32:46 +01:00
Felix Fietkau 52161d2e86 mt76: mt76x02: fix ED/CCA enabling/disabling
ED/CCA needs to be disable before stopping the MAC to avoid hangs from tx
being blocked. It must only be enabled again after the MAC has been started
again.
In many places this wasn't done properly, so fix this by always clearing
the relevant ED/CCA bits in mt76x2_mac_stop and set it up again after
channel change or calibration is done

Signed-off-by: Felix Fietkau <[email protected]>
2019-02-25 17:29:20 +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
Lorenzo BianconiandFelix Fietkau e32e249820 mt76x2: remove mt76x2_alloc_device routine
Remove mt76x2_alloc_device since it just runs mt76_alloc_device.
Move mt76_alloc_device call in mt76x2_probe

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 c50c9933a9 mt76x2u: remove mt76x2u_alloc_device routine
Remove mt76x2u_alloc_device since it just runs mt76_alloc_device.
Move mt76_alloc_device call in mt76x2u_probe

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 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
Felix Fietkau e3c1aad159 mt76: run MAC work every 100ms
ED/CCA Tx blocking checks need to be run every 100 ms in order to avoid
triggering too late and keeping tx blocking on for too long

Signed-off-by: Felix Fietkau <[email protected]>
2019-02-03 14:46:51 +01:00