Move mt76x02_update_channel routine in mt76x02-lib module in
order to be reused by mt76x0 driver adding get_survey support
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Use mt76x02_dev data structure as reference in mt76x02_mac.c
instead of mt76_dev
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move mt76x02_irq_handler handler in mt76x02_mmio.c in order to be
reused in mt76x0 driver. Move mt76x02_rx_poll_complete routine in
mt76x02-lib module. Moreover remove pci_core.c and mt76x2/trace.{c,h}
since are empty files
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move tx_tasklet management in mt76x02_mmio.c in order to
be reused by mt76x0 driver and remove duplicated code
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Use mt76x02_dev data structure as reference in mt76x02_mmio.c
instead of mt76_dev
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move mt76x02_tx_complete mt76x02-lib module in order to
be reused by mt76x0 drivers for irq unification.
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move mt76x02_mac_poll_tx_status in mt76x02_mac.c in order to
be reused by mt76x0 drivers for irq unification.
Moreover introduce mt76x02_trace source file to define mt76x02
trace points
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Rename mt76x02_util.h header file in mt76x02.h since now contains
all mt76x02 related definitions and not just utility routines
declarations
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move mt76x2_dev in mt76x02_util.h and rename it in mt76x02_dev
in order to be shared between mt76x2 and mt76x0 driver
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move mt76x02_mac_write_txwi in mt76x02_mac.c since it is shared between
mt76x0 and mt76x2 drivers. This is a preliminary patch to unify txwi
configuration between mt76x0 and mt76x2 drivers
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move mt76x2 and mt76x2u drivers to mt76x2 subfolder and
leave just shared code in mt76 root folder
Acked-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

If the first virtual interface is a station (or an AP with beacons
temporarily disabled), the beacon of the second interface needs to
occupy hardware beacon slot 0.
For some reason the beacon index was incorrectly masked with the
virtual interface beacon mask, which prevents the secondary
interface from sending beacons unless the first one also does.

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

Move mt76x02_beacon_offset utility routine in mt76x02-lib module
since it is shared between mt76x0 and mt76x2 driver and remove
duplicated code. Moreover move beacon_offset data structure in
mt76x02-lib module since it is shared between mt76x0 and mt76x2
drivers
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move mt76x02_set_irq_mask, mt76x02_irq_enable and mt76x02_irq_disable
in mt76x02-lib module in order to be reused by mt76x0 driver.
Moreover move irq_lock and irqmask in mt76_mmio data structure
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move mt76x2_tx_complete routine in mt76x02-lib module and rename it in
mt76x02_tx_complete in order to be used in mt76x0 driver
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Use mt76_dev instead of mt76x2_dev in mt76x2_tx_complete signature
in order to be reused in mt76x0 driver
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Merge send_tx_status and helper functions from mt76x0 and mt76x2.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Unify load/fetch tx status from mt76x0 and mt76x2
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

txwi and rxwi are the same for mt76x0 and mt76x2.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Second part of unifying mt76x02_sta structure between mt76x0 and mt76x2.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Move mac related code shared between mt76x2 and mt76x2u in
mt76x2-common module
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Add frame length to mt76x2_mac_write_txwi routine signature and do not
fetch it from skb since txwi data structure is added at the beginning of
the skb for usb based devices and mt76x2_mac_write_txwi will be shared
between pci and usb related code
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Add mt76x2_mac_load_tx_status routine since tx stats register map is
shared between usb and pci based devices but usb devices do not have a
tx stat irq line as pcie ones and it is necessary to load tx statistics
using a workqueue
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Introduce mac80211 rts threshold handler in order to add frame
protection support to mt76x2 driver
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This preserves more sensitivity when weak stations are active and avoids
counting signal measurements from other unrelated networks
Signed-off-by: NFelix Fietkau <nbd@nbd.name>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Fix mcs and attempt count estimation in mt76x2_mac_fill_tx_status routine
if the number of tx retries reported by the hw is grater than
IEEE80211_TX_MAX_RATES

Fixes: 7bc04215 ("mt76: add driver code for MT76x2e")
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

If the radio was previously in running state, it can receive some
packets before it is able to process them.
This can lead to a crash if the channel is not initialized yet.
Discard all rx packets until start() is called
Signed-off-by: NFelix Fietkau <nbd@nbd.name>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Remove unnecessary break statement in the default case of bw switch
block in mt76x2_mac_process_tx_rate routine
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Fix following sparse warnings in mt76x2_mac_write_txwi:
- drivers/net/wireless/mediatek/mt76/mt76x2_mac.c:201:26: warning:
  incorrect type in assignment (different base types)
- drivers/net/wireless/mediatek/mt76/mt76x2_mac.c:201:26: expected
  restricted __le32 [usertype] iv
- drivers/net/wireless/mediatek/mt76/mt76x2_mac.c:201:26: got unsigned
  int [unsigned] [usertype] <noident>
- drivers/net/wireless/mediatek/mt76/mt76x2_mac.c:202:27: warning:
  incorrect type in assignment (different base types)
- drivers/net/wireless/mediatek/mt76/mt76x2_mac.c:202:27: expected
  restricted __le32 [usertype] eiv
- drivers/net/wireless/mediatek/mt76/mt76x2_mac.c:202:27: got unsigned
  int [unsigned] [usertype] <noident>

Fixes: 23405236 ("mt76: fix transmission of encrypted management frames")
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Avoids data connection stalls when the client toggles powersave mode

Fixes: aee5b8cf ("mt76: implement A-MPDU rx reordering in the driver code")
Signed-off-by: NFelix Fietkau <nbd@nbd.name>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Apparently hardware does not perform CCMP PN validation in hardware, so
we need to take care of this in the driver. This is important for
protecting against replay attacks.

Since validation of fragmented frames is more complex, the CCMP header
for those is preserved. To keep the counter in sync, the first fragment
is verified by both mt76 and mac80211, and all other fragments only by
mac80211.
Signed-off-by: NFelix Fietkau <nbd@nbd.name>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Preparation for adding software rx CCMP PN validation
Signed-off-by: NFelix Fietkau <nbd@nbd.name>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This is required for performing CCMP PN validation in software
Signed-off-by: NFelix Fietkau <nbd@nbd.name>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Avoids the rhashtable lookup based on the MAC address inside mac80211
Signed-off-by: NFelix Fietkau <nbd@nbd.name>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Preparation for passing in more internal rx data via skb->cb
Signed-off-by: NFelix Fietkau <nbd@nbd.name>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Like beacons, probe responses need a hardware-generated TSF value. Set
the flag that causes the hw to generate it
Signed-off-by: NFelix Fietkau <nbd@nbd.name>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Hardware encryption seems to break encrypted unicast mgmt tx.
Unfortunately the hardware TXWI header does not have a bit to indicate
that a frame is software encrypted, so sw-encrypted frames need to use a
different WCID. For that to work, the CCMP PN needs to be generated in
software, which makes things a bit slower, so only do it for keys that
also need to tx management frames.
Signed-off-by: NFelix Fietkau <nbd@nbd.name>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Verify wcid is not NULL before dereferencing the pointer to initialize
txwi rate/power info

Fixes: 7bc04215 ("mt76: add driver code for MT76x2e")
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Discard affected packets instead. Should reduce the frequency of bogus
bug reports
Signed-off-by: NFelix Fietkau <nbd@nbd.name>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

MT76x2e is a 2x2 PCIe 802.11ac chipset by MediaTek. This driver has full
support for AP, station, ad-hoc, mesh and monitor mode.
Signed-off-by: NFelix Fietkau <nbd@nbd.name>
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>