Johannes Berg [Thu, 17 Jun 2021 08:07:28 +0000 (11:07 +0300)]
iwlwifi: pcie: remove TR/CR tail allocations
The TR/CR tail data are meant to be per-queue-arrays, however,
we allocate them completely wrong (we have a separate allocation
per queue).
Looking at this more closely, it turns out that the hardware
never uses these - we have a separate free list per RX queue
and maintain a write pointer for that in a register, and the
RX itself is indicated in the RB status (rb_stts) DMA region.
Despite nothing using the tail pointers, the hardware will
unconditionally access them to write updates, even when we aren't
using CRs/TRs.
Give it dummy values that we never use/update so it can do that
without causing trouble.
Johannes Berg [Thu, 17 Jun 2021 07:08:47 +0000 (10:08 +0300)]
iwlwifi: correct HE capabilities
The (default) HE capabilities for our devices weren't handled
correctly, adjust them to match the correct capabilities of
the devices.
Since the device regulatory will not allow 160 MHz on 5 GHz,
don't advertise this capability by default; do it only if an
NVM file is being loaded that might change the regulatory
parameters.
Shaul Triebitz [Thu, 17 Jun 2021 07:08:45 +0000 (10:08 +0300)]
iwlwifi: mvm: fix error print when session protection ends
When the session protection ends and the Driver is not
associated or a beacon was not heard, the Driver
prints "No beacons heard...".
That's confusing for the case where not associated.
Change the print when not associated to "Not associated...".
Johannes Berg [Thu, 17 Jun 2021 07:08:44 +0000 (10:08 +0300)]
iwlwifi: mvm: honour firmware SMPS requests
The firmware can now request SMPS (due to thermal conditions), add
some code to honour such requests and bubble them up through the
stack, subject to our other SMPS constraints, e.g. from Bluetooth.
Then, if the firmware requests SMPS, then we know that it supports
a small extension to the PHY configuration API where a chain mask
of 0 means "use 1 but pick which one yourself", so in this case we
use that extension.
During firmware restart, we stay in the previous state, and the FW
will send us a notification at startup (only) if the temperature is
below the lower or above the high threshold, to sync the state.
Johannes Berg [Thu, 17 Jun 2021 07:08:43 +0000 (10:08 +0300)]
iwlwifi: mvm: apply RX diversity per PHY context
SMPS requests may differ per interfaces due to e.g. Bluetooth
only interfering on 2.4 GHz, so if that's the case we should,
in the case of multiple PHY contexts, still allow RX diversity
on PHY context that have no interfaces with SMPS requests.
Fix the code to pass through the PHY context in question and
skip interfaces with non-matching PHY context while iterating.
Johannes Berg [Sat, 12 Jun 2021 11:32:42 +0000 (14:32 +0300)]
iwlwifi: pcie: print interrupt number, not index
Printing the interrupt index in our local array isn't very
useful in an error message, print the interrupt number (as
also shown in e.g. /proc/interrupts) instead.
Johannes Berg [Sat, 12 Jun 2021 11:32:38 +0000 (14:32 +0300)]
iwlwifi: mvm: don't change band on bound PHY contexts
When we have a P2P Device active, we attempt to only change the
PHY context it uses when we get a new remain-on-channel, if the
P2P Device is the only user of the PHY context.
This is fine if we're switching within a band, but if we're
switching bands then the switch implies a removal and re-add
of the PHY context, which isn't permitted by the firmware while
it's bound to an interface.
Fix the code to skip the unbind/release/... cycle only if the
band doesn't change (or we have old devices that can switch the
band on the fly as well.)
Miri Korenblit [Sat, 12 Jun 2021 11:32:34 +0000 (14:32 +0300)]
iwlwifi: mvm: support BIOS enable/disable for 11ax in Russia
Read the new BIOS DSM and Pass to FW if to disable\enable
11ax for Russia according to the BIOS key. This is
needed to enable OEMs to control enable/disable 11ax in Russia.
Also add support for future "enable 11ax in country X" features.
Íñigo Huguet [Tue, 11 May 2021 07:19:27 +0000 (09:19 +0200)]
rtl8xxxu: avoid parsing short RX packet
One USB data buffer can contain multiple received network
packets. If that's the case, they're processed this way:
1. Original buffer is cloned
2. Original buffer is trimmed to contain only the first
network packet
3. This first network packet is passed to network stack
4. Cloned buffer is trimmed to eliminate the first network
packet
5. Repeat with the cloned buffer until there are no more
network packets inside
However, if the space remaining in original buffer after
the first network packet is not enough to contain at least
another network packet descriptor, it is not cloned.
The loop parsing this packets ended if remaining space == 0.
But if the remaining space was > 0 but < packet descriptor
size, another iteration of the loop was done, processing again
the previous packet because cloning didn't happen. Moreover,
the ownership of this packet had been passed to network
stack in the previous iteration.
This patch ensures that no extra iteration is done if the
remaining size is not enough for one packet, and also avoid
the first iteration for the same reason.
Probably this doesn't happen in practice, but can happen
theoretically.
Based on 2001:3319 and 2357:0109 which I used to test the fix and
0bda:818b and 2357:0108 for which I found efuse dumps online.
== 2357:0109 ==
=== Before ===
Vendor: Realtek
Product: \x03802.11n NI
Serial:
=== After ===
Vendor: Realtek
Product: 802.11n NIC
Serial not available.
== 2001:3319 ==
=== Before ===
Vendor: Realtek
Product: Wireless N
Serial: no USB Adap
=== After ===
Vendor: Realtek
Product: Wireless N Nano USB Adapter
Serial not available.
Ryder Lee [Thu, 17 Jun 2021 07:17:49 +0000 (15:17 +0800)]
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>
Sean Wang [Thu, 17 Jun 2021 01:39:19 +0000 (09:39 +0800)]
mt76: mt7921: fix the coredump is being truncated
Fix the maximum size of the coredump generated with current mt7921
firmware. Otherwise, a truncated coredump would be reported to userland
via dev_coredumpv.
Also, there is an additional error handling enhanced in the patch to avoid
the possible invalid buffer access when the system failed to create the
buffer to hold the coredump.
Fixes: 0da3c795d07b ("mt76: mt7921: add coredump support") Co-developed-by: YN Chen <YN.Chen@mediatek.com> Signed-off-by: YN Chen <YN.Chen@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Mon, 10 May 2021 15:14:53 +0000 (23:14 +0800)]
mt76: mt7921: add deep sleep control to runtime-pm knob
Add addtional the deep sleep control to runtime-pm knob to
allow us to control driver switching between the full power
mode and the deep sleep mode the firmware is able to support.
Reviewed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Mon, 10 May 2021 15:14:52 +0000 (23:14 +0800)]
mt76: mt7921: enable deep sleep at runtime
Enable the deep sleep mode with that firmware is able to trap into
the doze state at runtime to reduce the power consumption further.
The deep sleep mode is not allowed in the STA state transition with
the firmware to have the fast connection experience as we've done in
the full power mode
Reviewed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Shayne Chen [Tue, 8 Jun 2021 06:55:58 +0000 (14:55 +0800)]
mt76: mt7915: fix rx fcs error count in testmode
FCS error packets are filtered by default and won't be reported to
driver, so that RX fcs error and PER in testmode always show zero.
Fix this issue by reading fcs error count from hw counter.
We did't fix this issue by disabling fcs error rx filter since it may
let HW suffer some SER errors.
Introduce mt76_connac_mcu_get_nic_capability utility routine to poll
device capabilities returned by mcu fw for CE devices (mt7663/mt7921).
This is a preliminary patch to introduce 6GHz support.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Tested-by: Deren Wu <deren.wu@mediatek.com> Co-developed-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Ryder Lee [Mon, 17 May 2021 04:45:58 +0000 (12:45 +0800)]
mt76: mt7915: fix MT_EE_CAL_GROUP_SIZE
Fix wrong offset for pre-calibration data.
Fixes: 495184ac91bb ("mt76: mt7915: add support for applying pre-calibration data") Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Deren Wu [Mon, 31 May 2021 17:01:22 +0000 (01:01 +0800)]
mt76: mt7921: enable random mac address during sched_scan
Enable src address randomization during scheduled scanning
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Ryder Lee [Sat, 15 May 2021 04:17:29 +0000 (12:17 +0800)]
mt76: mt7915: use mt7915_mcu_get_mib_info() to get survey data
Firmware functions (SCS, MU ...) also require read-clear phy counters,
hence firmware prepares a global task to read shared fields out to a
shared pool to avoid concurrency. Switch to event format accordingly.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Felix Fietkau [Tue, 1 Jun 2021 20:26:31 +0000 (22:26 +0200)]
mt76: mt7915: improve error recovery reliability
- Remove no-op code for queue lock/unlock, which is no longer needed
- Set a missing DMA flag
- Wait for full completion of error recovery before restarting tx
- Schedule IRQ tasklet to ensure that IRQ mask gets written
Lorenzo Bianconi [Fri, 28 May 2021 11:02:24 +0000 (13:02 +0200)]
mt76: allow hw driver code to overwrite wiphy interface_modes
Move wiphy interface_modes configuration in mt76_alloc_device and
mt76_alloc_phy in order to be overwritten by hw specific code
since some drivers do not support all operating modes (mt7921
supports sta only in the current codebase)
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 27 May 2021 11:35:30 +0000 (13:35 +0200)]
mt76: testmode: remove undefined behaviour in mt76_testmode_alloc_skb
Get rid of an undefined behaviour in mt76_testmode_alloc_skb routine
allocating skb frames
Fixes: 2601dda8faa76 ("mt76: testmode: add support to send larger packet") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 27 May 2021 11:35:28 +0000 (13:35 +0200)]
mt76: testmode: fix memory leak in mt76_testmode_alloc_skb
Free all pending frames in case of failure in mt76_testmode_alloc_skb
routine
Fixes: 2601dda8faa76 ("mt76: testmode: add support to send larger packet") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Shayne Chen [Tue, 25 May 2021 10:34:09 +0000 (18:34 +0800)]
mt76: mt7915: use mt7915_mcu_get_txpower_sku() to get per-rate txpower
Get per-rate txpower with mcu command. This is the preparation of
co-driver for the next chipset, which has different tmac power registers
but can share this same command.
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Sun, 23 May 2021 21:08:05 +0000 (23:08 +0200)]
mt76: mt7921: do not schedule hw reset if the device is not running
Do not schedule hw full reset if the device is not fully initialized
(e.g if the channel has not been configured yet). This patch fixes
the kernel crash reported below
YN Chen [Thu, 20 May 2021 03:46:35 +0000 (11:46 +0800)]
mt76: connac: add bss color support for sta mode
Add bss color support for sta mode
Signed-off-by: Jayden.Kuo <jayden.kuo@mediatek.com> Signed-off-by: YN Chen <yn.chen@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Thu, 20 May 2021 03:46:40 +0000 (11:46 +0800)]
mt76: mt7921: fix OMAC idx usage
OMAC idx have to be same with BSS idx according to firmware usage.
Fixes: e0f9fdda81bd ("mt76: mt7921: add ieee80211_ops") Reviewed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: YN Chen <yn.chen@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Fixes: 1d8efc741df80 ("mt76: mt7921: introduce Runtime PM support") Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Avoid unnecessary consecutive WiFi resets by dropping reset
request when reset work is working.
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Deren Wu [Thu, 20 May 2021 03:46:36 +0000 (11:46 +0800)]
mt76: connac: update BA win size in Rx direction
Update BA size used data transimission in the Rx direction to improve Rx
throughput.
Reviewed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Leon Yen <leon.yen@mediatek.com> Signed-off-by: YN Chen <yn.chen@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Ryder Lee [Fri, 23 Apr 2021 22:02:05 +0000 (06:02 +0800)]
mt76: mt7915: add thermal cooling device support
Thermal cooling device support is added to control the temperature by
throttling the data transmission for the given duration. Throttling is
done by adjusting Tx period by given percentage of time. The thermal
device allows user to configure duty cycle.
Throttling can be disabled by setting the duty cycle to 0. The cooling
device can be found under /sys/class/thermal/cooling_deviceX/.
Corresponding soft link to this device can be found under phy folder
To set duty cycle as 80%,
echo 80 > /sys/class/ieee80211/phy*/cooling_device/cur_state
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Mon, 10 May 2021 15:14:57 +0000 (23:14 +0800)]
mt76: mt7921: add back connection monitor support
Hw beacon cmd to the mt7921 firmware doesn't only filter out the beacon,
but also performs its own connection monitoring, including periodic
keep-alives to the AP and probing the AP on beacon loss. Will indicate
the host with the event when the firmware detects the connection is lost.
Fixes: 1d8efc741df8 ("mt76: mt7921: introduce Runtime PM support") Reviewed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: YN Chen <yn.chen@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Mon, 10 May 2021 15:14:55 +0000 (23:14 +0800)]
mt76: mt7921: consider the invalid value for to_rssi
It is possible the RCPI from the certain antenna is an invalid value,
especially packets are receiving while the system is frequently entering
deep sleep mode, so consider calculating RSSI with the reasonable upper
bound to avoid report the wrong value to the mac80211 layer.
Fixes: 163f4d22c118 ("mt76: mt7921: add MAC support") Reviewed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
YN Chen [Mon, 10 May 2021 15:14:54 +0000 (23:14 +0800)]
mt76: connac: fix WoW with disconnetion and bitmap pattern
Update MCU command usage to fix WoW configuration with disconnection
and bitmap pattern and to avoid magic number.
Fixes: ffa1bf97425b ("mt76: mt7921: introduce PM support") Reviewed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: YN Chen <yn.chen@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Thu, 20 May 2021 03:46:37 +0000 (11:46 +0800)]
mt76: mt7921: fix reset under the deep sleep is enabled
To fix possibly the race to access register between the WiFi reset
and the other context that is caused by explicitly cancelling ps_work
and wake_work to break PM_STATE consistency.
Deep sleep would cause the hardware into the inactive state,
so we forcely put device drv_own state before we start to reset.
The patch also ignore the reset request when the procedure is in
progress to avoid the consecutive WiFi resets.
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Mon, 10 May 2021 15:14:51 +0000 (23:14 +0800)]
mt76: connac: fw_own rely on all packet memory all being free
If the device is MMIO-based, we must ensure all TxD/TxP on the host
memory all being consumed by the device prior to safely switching to
fw_own state.
Fixes: ec7bd7b4a9c0 ("mt76: connac: check wake refcount in mcu_fw_pmctrl") Reviewed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Mon, 10 May 2021 15:14:50 +0000 (23:14 +0800)]
mt76: mt7921: Don't alter Rx path classifier
Keep Rx path classifier the mt7921 firmware prefers to allow frames pass
through MCU.
Fixes: 5c14a5f944b9 ("mt76: mt7921: introduce mt7921e support") Reviewed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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