When operating on a mix of DFS and non-DFS channels, the driver only checks
the CAC status of the control channel. This causes beacons/tx to fail if the
control channel is on a non-DFS channel.
Fix this by calling cfg80211_reg_can_beacon to determine the DFS status of
all affected channels
Signed-off-by: Felix Fietkau <[email protected]>
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 <[email protected]>
Client mode on DFS channels was broken, because the old code was activating
the DFS detector on radar channels while leaving it in CAC state.
This was caused by making the decision based on the channel radar flag,
instead of hw->conf.radar_enabled.
In order to properly deal with the various corner cases, rip out the state
handling code and replace it with something that's much easier to reason
about.
Signed-off-by: Felix Fietkau <[email protected]>
Fix the following sparse warning:
drivers/net/wireless/mediatek/mt76/mac80211.c:183:32:
warning: symbol 'mt76_sar_capa' was not declared. Should it be static?
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Move wiphy SAR capability configuration in mt76 module and remove
duplicated code.
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
If the driver has configured the hardware to drop packets for a sta that was
in powersave mode, then clearing the flag too early opens up a small race
window during which packets could be dropped on wakeup
Signed-off-by: Felix Fietkau <[email protected]>
Move mt76_get_sar_power and mt76_init_sar_power in the common code.
This is a preliminary patch to add sar support to mt76x02 drivers.
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
the wiphy's available antennas may be incorrect
When ext phy's antenna_mask is different from main phy
Signed-off-by: Bo Jiao <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Cap max offset value to ARRAY_SIZE(mt76_rates) - 1 in
mt76_calculate_default_rate routine in order to avoid possible Out Of
Bound accesses.
Fixes: 33920b2bf0483 ("mt76: add support for setting mcast rate")
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Move mt76_ethtool_worker_info in common code in order to be reused in
mt7921 driver.
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
When received frame is decryped by hardware, CCMP PN is checked by
mt76.
When management frame protection (IEEE 802.11w) is used, we must use
a separate counter for tracking received CCMP packet number for the
management frames. The previously used counter was shared with data
frames and that can cause problems in detecting replays incorrectly
for robust management frames.
Add a new counter just for robust management frames to avoid this
issue.
Signed-off-by: Xing Song <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Substitute sk_buff_head status_list with spinlock_t status_lock since we
just need it for locking
Tested-by: [email protected]
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Remove mt76_wcid pointer from mt76_tx_status_check signature since it is
always set to NULL
Tested-by: [email protected]
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Introduce per-wcid idr to manage packet id for txs. This allow fast idr
lookup and skb queueing at the same time.
Tested-by: [email protected]
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Introduce 6GHz channel list in mt76 module. This is a preliminary patch
to unlock 6GHz band for mt7921 devices.
Tested-by: Deren Wu <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Give a proper boottime_ns value for netlink RX to avoid scan
issues with Android.
Signed-off-by: Ryder Lee <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
basic_rate could be 0 ie. hidden AP. Always pick the lowest rate
for such cases.
Fixes: 75fb2e62d444 (mt76: add mt76_default_basic_rate more devices can rely on)
Signed-off-by: Ryder Lee <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Drop MT_DRV_AMSDU_OFFLOAD after introducing IEEE80211_OFFLOAD_ENCAP_ENABLED
flag in mac80211. Driver now checks vif->offload_flags to know encap offload
status of each interface.
Signed-off-by: Ryder Lee <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Mesh and ad-hoc interfaces allow users to set mcast rate through
NL80211_ATTR_MCAST_RATE, so rework mt76_default_basic_rate() to
adapt that.
Signed-off-by: Ryder Lee <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
add .set_sar_specs to allow configuring SAR power limitations on the
frequency ranges from the userland.
Co-developed-by: Sean Wang <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Signed-off-by: YN Chen <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
add mt76_default_basic_rate to mt76 core more devices can rely on
to send frames which require the rate in the basic rates.
Suggested-by: Ryder Lee <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
PHY offset in either .hw_value or .hw_value_short for mt7615, mt7663,
mt7915 and mt7921 device all start at bit 6, not 8.
Suggested-by: Ryder Lee <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
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 <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Mitigate A-MSDU injection attacks (CVE-2020-24588) by detecting if the
destination address of a subframe equals an RFC1042 (i.e., LLC/SNAP)
header, and if so dropping the complete A-MSDU frame. This mitigates
known attacks, although new (unknown) aggregation-based attacks may
remain possible.
This defense works because in A-MSDU aggregation injection attacks, a
normal encrypted Wi-Fi frame is turned into an A-MSDU frame. This means
the first 6 bytes of the first A-MSDU subframe correspond to an RFC1042
header. In other words, the destination MAC address of the first A-MSDU
subframe contains the start of an RFC1042 header during an aggregation
attack. We can detect this and thereby prevent this specific attack.
For details, see Section 7.2 of "Fragment and Forge: Breaking Wi-Fi
Through Frame Aggregation and Fragmentation".
Signed-off-by: Felix Fietkau <[email protected]>
In order to remove duplicated code, move mt76_token_init in
mt76_alloc_device routine
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
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 <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
When receiving an A-MSDU containing only a single subframe, status->last_amsdu
is set, but no previous head is present in the rx A-MSDU queue.
In this case, the A-MSDU subframe will be held until the next one is received,
potentially causing significant extra latency.
Rework the code to make it easier to read and less convoluted, and release the
newly created head if status->last_amsdu is set.
Signed-off-by: Felix Fietkau <[email protected]>
Enable hw rx-amsdu de-aggregation support available in 7915 devices.
This is a preliminary patch to enable rx checksum offload
Signed-off-by: Lorenzo Bianconi <[email protected]>
Only clear dev->phy2 after the phy is gone, the driver may still need to access
it until shutdown is complete
Signed-off-by: Felix Fietkau <[email protected]>
Add testmode support for DBDC NICs (both MT7615D and MT7915D work).
Testmode data and parameters are moved from per-dev to per-phy
for maintaining the value of each band.
Signed-off-by: Shayne Chen <[email protected]>
Acked-by: Ryder Lee <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
This is a preliminary patch to properly support mt7915 dbdc
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
This is a preliminary patch to introduce dbdc support to mt7915 devices
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
This is a preliminary patch to properly support mt7915 dbdc
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
This is a preliminary patch to move properly support mt7915 dbdc
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
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 <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Introduce mt76_init_mcu_queue utility routine in order to allocate
dedicate q_mcu pointers for mcu hw queues. This is a preliminary patch
to move data queues in mt76_phy and add dbdc support to mt7915 driver
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Move mt76_init_tx_queue in mac80211.c since it is shared by all
drivers.
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
It was accidentally dropped while adding multiple wiphy support
Fixes fast-rx support and avoids handling reordering in both mac80211
and the driver
Cc: [email protected]
Fixes: c89d36254155 ("mt76: add function for allocating an extra wiphy")
Signed-off-by: Felix Fietkau <[email protected]>
The newer chipsets can deal with the same STA on multiple interfaces
Preparation for supporting more station interfaces
Signed-off-by: Felix Fietkau <[email protected]>
Introduce sdio tx aggregation to reduce bus transaction ands improve tx
throughput. For the moment the skb are copied in a dedicated buffer
since mmc APIs do not support sg table for zero-copy.
Since skb data are already copied in xmit_buff[], avoid linearization in
ma80211 layer. Relying on tx aggregation, we improve tx tpt of ~65%.
Tested-by: Sean Wang <[email protected]>
Co-developed-by: Sean Wang <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
On MT7615 and MT7915, packets received from DMA can include TX_FREE events,
which free up space for tx. In order to process those packets faster, keep
keep a longer internal queue of packets and pass as many packets to the
stack as the NAPI budget allows
Signed-off-by: Felix Fietkau <[email protected]>
