Commit Graph
54 Commits
Author SHA1 Message Date
Felix Fietkau f399da3b2e mt76: prevent tx scheduling during channel change
Re-schedule tx afterwards

Signed-off-by: Felix Fietkau <[email protected]>
2018-05-20 07:57:25 +02:00
Felix Fietkau 0b8d1ddec9 mt76: fix beacon timer drift
The beacon timer drifts by 1 microsecond every TBTT. After 20 minutes
with a beacon interval of 100, the drift will be almost 12 ms, enough to
cause weird issues for devices in powersave mode.

Since the beacon timer is configured in units of 1/16 TU (64 us), we
need to adjust it once every 64 beacons and only for one beacon.

Signed-off-by: Felix Fietkau <[email protected]>
2018-05-18 17:46:01 +02:00
Lorenzo BianconiandFelix Fietkau e87f925667 mt76x2: apply coverage class on slot time too
According to 802.11-2007 17.3.8.6 (slot time), the slot time should
be increased by 3 us * coverage class. Taking into account coverage
class in slot time configuration allows to increase by an order of
magnitude the throughput on a 4Km link in a noisy environment

Tested-by: Luca Bisti <[email protected]>
Tested-by: Gaetano Catalli <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
2018-05-15 13:16:16 +02:00
Felix Fietkau a78673d523 mt76: fix sending encrypted broadcast packets for secondary interfaces
For encryption to work properly, the BSS index needs to be initialized
for the WCID entry used for the interface.

Signed-off-by: Felix Fietkau <[email protected]>
2018-05-15 13:03:31 +02:00
Lorenzo BianconiandFelix Fietkau ced433d006 mt76x2: add mac80211 {set,get}_antenna callbacks
Add capability to select tx/rx antennas. Possible values are:
 - 1: to use only the first antenna
 - 2: to use only the second antenna
 - 3: to use both of them

Signed-off-by: Lorenzo Bianconi <[email protected]>
2018-03-21 11:23:10 +01:00
Lorenzo BianconiandFelix Fietkau 249fa2deda mt76x2: fix warning in ieee80211_get_key_rx_seq()
Fall back to software encryption for hw unsupported ciphers in order
to fix the following warning in ieee80211_get_key_rx_seq routine:

WARNING: CPU: 1 PID: 1277 at backports-2017-11-01/net/mac80211/key.c:
1010 mt76_wcid_key_setup+0x6c/0x138 [mt76]
CPU: 1 PID: 1277 Comm: hostapd Tainted: G        W       4.9.86 #0
Stack : 00000000 00000000 80527b4a 00000042 80523824 00000000 00000000 80520000
        8fd79a9c 804bbda7 80454c84 00000001 000004fd 80523824 8f7e4ba0 8eceda12
        00000010 8006af94 00000001 80520000 804c1f04 804c1f08 80459890 8ec999b4
        00000003 800a7840 8f7e4ba0 8eceda12 8121de20 00000000 00000001 00c999b4
        00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
        ...
Call Trace:
[<8000f52c>] show_stack+0x70/0x8c
[<801d8d04>] dump_stack+0x94/0xd0
[<8002bcd4>] __warn+0x110/0x118
[<8002bd70>] warn_slowpath_null+0x1c/0x2c
[<8f0415cc>] mt76_wcid_key_setup+0x6c/0x138 [mt76]
[<8f1311b4>] mt76x2_dma_cleanup+0xa38/0x1048 [mt76x2e]

Fixes: 30ce7f4456ae ("mt76: validate rx CCMP PN")
Signed-off-by: Lorenzo Bianconi <[email protected]>
2018-03-19 21:38:34 +01:00
Felix Fietkau 246d548b06 mt76: stop tx queues from the driver callback instead of common code
Allows the driver to control whether to send a BlockAckReq after waking
up. MT76x2 needs this set to true, for MT7603 it needs to be false

Signed-off-by: Felix Fietkau <[email protected]>
2018-02-09 16:01:39 +01:00
Felix Fietkau f515dfcca1 mt76: implement AP_LINK_PS
With software A-MPDU reordering in place, frames that notify mac80211 of
powersave changes are reordered as well, which can cause connection
stalls. Fix this by implementing powersave state processing in the
driver.

Signed-off-by: Felix Fietkau <[email protected]>
2018-01-26 11:41:38 +01:00
Felix Fietkau 9b2c77826d mt76: validate rx CCMP PN
Apparently hardware does not perform CCMP PN validation in hardware, so
we need to take care of this in the driver.

Signed-off-by: Felix Fietkau <[email protected]>
2018-01-22 11:06:19 +01:00
Felix Fietkau 461cdf9f01 mt76: pass the per-vif wcid to the core for multicast rx
Preparation for adding software rx CCMP PN validation

Signed-off-by: Felix Fietkau <[email protected]>
2018-01-22 11:06:17 +01:00
Felix Fietkau b0508d3044 mt76: implement A-MPDU rx reordering in the driver code
This is required for performing CCMP PN validation in software

Signed-off-by: Felix Fietkau <[email protected]>
2018-01-22 10:43:21 +01:00
Felix Fietkau 58a41f17aa mt76: get station pointer by wcid and pass it to mac80211
Avoids the rhashtable lookup based on the MAC address inside mac80211

Signed-off-by: Felix Fietkau <[email protected]>
2018-01-22 10:14:25 +01:00
Lorenzo BianconiandFelix Fietkau f76e25fe5a mt76x2: fix WMM parameter configuration
Fix hw queue configuration since mt76x2 devices use a reverse queue
enumeration respect to mac80211 one:
 - 0: AC_BE
 - 1: AC_BK
 - 2: AC_VI
 - 3: AC_VO

The issue can be reproduced sending two concurrent flow using
two separate queues:
 - VO: 20Mbps UDP traffic
 - BE: TCP traffic

In this scenario the UDP traffic will be blocked by the TCP one.
Fix it configuring properly WMM hw queue parameters

Fixes: 7bc04215a66b ("mt76: add driver code for MT76x2e")
Tested-by: Gaetano Catalli <[email protected]>
Signed-off-by: Gaetano Catalli <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
2018-01-18 19:10:20 +01:00
Lorenzo BianconiandFelix Fietkau 939e3e0ce2 mt76x2: dfs: avoid tasklet scheduling during mt76x2_dfs_init_params()
Substitute tasklet_kill with tasklet_disable/tasklet_enable in order to
guarantee dfs tasklet can not be executed during dfs parameter
initialization

Signed-off-by: Lorenzo Bianconi <[email protected]>
2018-01-18 19:06:06 +01:00
Fengguang WuandFelix Fietkau 2b7fae40d6 mt76: fix returnvar.cocci warnings
drivers/net/wireless/mediatek/mt76/mt76x2_main.c:86:5-8: Unneeded variable: "ret". Return "0" on line 112

 Remove unneeded variable used to store return value.

Generated by: scripts/coccinelle/misc/returnvar.cocci

Fixes: a5f6039c8f9c ("mt76: add driver code for MT76x2e")
CC: Felix Fietkau <[email protected]>
Signed-off-by: Fengguang Wu <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
2018-01-18 19:04:21 +01:00
Felix Fietkau d242650960 Revert "mt76x2: remove MAC address limitation for multi-vif setups"
This reverts commit 170f3341c6.
2017-12-17 11:44:47 +01:00
Lorenzo BianconiandFelix Fietkau ca5ca8c779 mt76x2: fix possible NULL pointer dereferencing in mt76x2_ampdu_action()
Initialize mt76_txq pointer after ieee80211_txq pointer check.
Remove space after the pointer cast

Fixes: 7bc04215a66b ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <[email protected]>
2017-12-14 16:41:52 +01:00
Felix Fietkau c64633e857 mt76x2: configure rx filter based on monitor mode setting
Due to an unrelated issue, the MT_RX_FILTR_CFG_PROMISC flag is currently
unset, which means that monitor mode is unconditionally enabled.
Toggle this flag based on the mac80211 monitor mode setting instead

Signed-off-by: Felix Fietkau <[email protected]>
2017-12-08 11:55:29 +01:00
Felix Fietkau 170f3341c6 mt76x2: remove MAC address limitation for multi-vif setups
The hardware has a separate set of registers to configure a
per-interface MAC address.

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2017-12-07 19:50:46 +01:00
Felix Fietkau 19fff41338 mt76x2: convert between per-chain tx power and combined output
Using both chains adds max. 3 dBm.

Signed-off-by: Felix Fietkau <[email protected]>
2017-11-30 12:59:31 +01:00
Felix Fietkau 792859b237 mt76x2: fix transmission of encrypted management frames
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: Felix Fietkau <[email protected]>
2017-11-29 12:18:34 +01:00
Felix Fietkau 0ce792337d mt76x2: add helper function for setting drop mask
Signed-off-by: Felix Fietkau <[email protected]>
2017-11-16 14:07:03 +01:00
Felix Fietkau 9f02db7efc mt76x2: fall back to software crypto for IBSS/Mesh per-sta GTK
Signed-off-by: Felix Fietkau <[email protected]>
2017-03-17 13:29:23 +01:00
Felix Fietkau 892543eb79 Revert "mt76x2: fix queue mapping in mt76x2_conf_tx()"
This reverts commit adf1bbd03c.
A report indicates that this causes a tx/rx throughput regression

Signed-off-by: Felix Fietkau <[email protected]>
2016-11-05 10:42:38 +01:00
Lorenzo BianconiandFelix Fietkau adf1bbd03c mt76x2: fix queue mapping in mt76x2_conf_tx()
Signed-off-by: Gaetano Catalli <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
2016-11-03 12:25:13 +01:00
Lorenzo BianconiandFelix Fietkau 6375fc1abe mt76x2: add hw radar detector
add hw DFS pattern detector support for mt76x2 based devices
DFS region supported:
 - FCC
 - ETSI
 - JAPAN_W53
 - JAPAN_W56

Signed-off-by: Lorenzo Bianconi <[email protected]>
2016-09-25 18:13:12 +02:00
Lorenzo BianconiandFelix Fietkau 93907807ca mt76x2: fix typo in mt76x2_tx_get_max_txpwr_adj() signature
Signed-off-by: Lorenzo Bianconi <[email protected]>
2016-09-05 10:43:30 +02:00
Felix Fietkau d7f5112c09 mt76x2: fix checkpatch warnings
Signed-off-by: Felix Fietkau <[email protected]>
2016-09-04 18:59:22 +02:00
Felix Fietkau b300bdc42e use the new bitfield accessor macros
Signed-off-by: Felix Fietkau <[email protected]>
2016-09-04 17:37:26 +02:00
Felix Fietkau 53c1b7f6ac update my email address
Signed-off-by: Felix Fietkau <[email protected]>
2016-09-04 17:33:28 +02:00
Lorenzo BianconiandFelix Fietkau 2637e6b9c0 mt76x2: add tx power adjustment for auto response frames
Signed-off-by: Lorenzo Bianconi <[email protected]>
2016-08-25 12:57:56 +02:00
Lorenzo BianconiandFelix Fietkau aa77eadf0e mt76x2: add TPC support
add per-packet tx power adjustment support

Signed-off-by: Lorenzo Bianconi <[email protected]>
2016-08-25 12:57:47 +02:00
Felix Fietkau ced81a3458 relicense to ISC (except for util.h which is based on GPL'd kernel code
Signed-off-by: Felix Fietkau <[email protected]>
2016-07-12 08:38:46 +02:00
Felix Fietkau 3c8a4bc30e mt76x2: implement survey support
Signed-off-by: Felix Fietkau <[email protected]>
2016-06-15 16:47:23 +02:00
Felix Fietkau 675868d4e8 mt7603: opt out of the tx BAR refresh at wakeup time
Signed-off-by: Felix Fietkau <[email protected]>
2016-02-28 22:02:21 +01:00
Felix Fietkau 079ad90fe2 update copyright lines
Signed-off-by: Felix Fietkau <[email protected]>
2016-02-25 18:09:13 +01:00
Felix Fietkau 762463bf9b mt76x2: reset mtxq->aggr after regular aggregation stop
Signed-off-by: Felix Fietkau <[email protected]>
2016-02-19 20:56:16 +01:00
Felix Fietkau 33189cedfa mt7603: fix wcid leak
Signed-off-by: Felix Fietkau <[email protected]>
2016-02-19 09:26:42 +01:00
Felix Fietkau 9e305ef093 add rx helper function which uses ieee80211_rx_napi
Signed-off-by: Felix Fietkau <[email protected]>
2016-02-08 15:06:21 +01:00
Felix Fietkau 81ea5f7225 mt76x2: move mt76x2_txq_init to main.c and make it static
Signed-off-by: Felix Fietkau <[email protected]>
2016-02-06 19:22:26 +01:00
Felix Fietkau 2c2fa07e98 suspend txq scheduling during scanning
Signed-off-by: Felix Fietkau <[email protected]>
2016-02-03 16:10:54 +01:00
Felix Fietkau 71fae84d55 mt76x2: move mt76x2_set_channel to mt76x2_main.c
Signed-off-by: Felix Fietkau <[email protected]>
2016-02-03 15:58:40 +01:00
Felix Fietkau a6d7949f67 move rx polling to core
Signed-off-by: Felix Fietkau <[email protected]>
2016-02-03 15:51:17 +01:00
Felix Fietkau 7630ee71e3 sync with mac80211 API changes
Signed-off-by: Felix Fietkau <[email protected]>
2016-01-15 17:52:34 +01:00
Felix Fietkau 6ca2852f65 move mac address validation to core
Signed-off-by: Felix Fietkau <[email protected]>
2016-01-01 19:38:59 +01:00
Felix Fietkau b9484962c7 move mt76_wcid_alloc to core
Signed-off-by: Felix Fietkau <[email protected]>
2015-12-20 22:40:53 +01:00
Felix Fietkau 93db8eede4 mt76x2: remove msta->sleeping, it is unused
Signed-off-by: Felix Fietkau <[email protected]>
2015-12-20 10:26:01 +01:00
Felix Fietkau 43d5b84989 move tx scheduling code to common
Signed-off-by: Felix Fietkau <[email protected]>
2015-12-16 19:04:06 +01:00
Felix Fietkau 42b9c4db0a move wcid and txq struct to mt76.h in preparation for making tx scheduling code more generic
Signed-off-by: Felix Fietkau <[email protected]>
2015-12-16 17:45:46 +01:00
Felix Fietkau 2044de5229 move mt76 state enum/storage to mt76.h
Signed-off-by: Felix Fietkau <[email protected]>
2015-12-06 22:05:42 +01:00