Commit Graph

1564 Commits

Author SHA1 Message Date
David S. Miller
932630fa90 wireless-drivers-next patches for 5.4
First set of patches for 5.4.
 
 Major changes:
 
 brcmfmac
 
 * enable 160 MHz channel support
 
 rt2x00
 
 * add support for PLANEX GW-USMicroN USB device
 
 rtw88
 
 * add Bluetooth coexistance support
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Merge tag 'wireless-drivers-next-for-davem-2019-08-19' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 5.4

First set of patches for 5.4.

Major changes:

brcmfmac

* enable 160 MHz channel support

rt2x00

* add support for PLANEX GW-USMicroN USB device

rtw88

* add Bluetooth coexistance support
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-19 18:32:30 -07:00
Navid Emamdoost
b95c732234 mt7601u: null check the allocation
devm_kzalloc may fail and return NULL. So the null check is needed.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-08-06 15:35:28 +03:00
Stephen Boyd
d1a55841ab net: Remove dev_err() usage after platform_get_irq()
We don't need dev_err() messages when platform_get_irq() fails now that
platform_get_irq() prints an error message itself when something goes
wrong. Let's remove these prints with a simple semantic patch.

// <smpl>
@@
expression ret;
struct platform_device *E;
@@

ret =
(
platform_get_irq(E, ...)
|
platform_get_irq_byname(E, ...)
);

if ( \( ret < 0 \| ret <= 0 \) )
{
(
-if (ret != -EPROBE_DEFER)
-{ ...
-dev_err(...);
-... }
|
...
-dev_err(...);
)
...
}
// </smpl>

While we're here, remove braces on if statements that only have one
statement (manually).

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Saeed Mahameed <saeedm@mellanox.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Felix Fietkau <nbd@nbd.name>
Cc: Lorenzo Bianconi <lorenzo@kernel.org>
Cc: netdev@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-30 14:37:35 -07:00
Stanislaw Gruszka
f0248ec49b mt7601u: use params->ssn value directly
There is no point to use pointer to params->ssn.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-07-24 14:52:06 +03:00
Weitao Hou
65f50f2553 kernel: fix typos and some coding style in comments
fix lenght to length

Link: http://lkml.kernel.org/r/20190521050937.4370-1-houweitaoo@gmail.com
Signed-off-by: Weitao Hou <houweitaoo@gmail.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-07-16 19:23:21 -07:00
David S. Miller
af144a9834 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Two cases of overlapping changes, nothing fancy.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 19:48:57 -07:00
Kalle Valo
9829a0bd66 mt76 patches for 5.3
* use NAPI polling for tx cleanup on mt7603/mt7615
 * various fixes for mt7615
 * unify some code between mt7603 and mt7615
 * fix locking issues on mt76x02
 * add support for toggling edcca on mt7603
 * fix reading target tx power with ext PA on mt7603/mt7615
 * fix initalizing channel maximum power
 * fix rate control / tx status reporting issues on mt76x02/mt7603
 * add support for eeprom calibration data from mtd on mt7615
 * support configuring tx power on mt7615
 * fix external PA support on mt76x0
 * per-chain signal reporting on mt7615
 * rx/tx buffer fixes for USB devices
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Merge tag 'mt76-for-kvalo-2019-06-27' of https://github.com/nbd168/wireless

mt76 patches for 5.3

* use NAPI polling for tx cleanup on mt7603/mt7615
* various fixes for mt7615
* unify some code between mt7603 and mt7615
* fix locking issues on mt76x02
* add support for toggling edcca on mt7603
* fix reading target tx power with ext PA on mt7603/mt7615
* fix initalizing channel maximum power
* fix rate control / tx status reporting issues on mt76x02/mt7603
* add support for eeprom calibration data from mtd on mt7615
* support configuring tx power on mt7615
* fix external PA support on mt76x0
* per-chain signal reporting on mt7615
* rx/tx buffer fixes for USB devices
2019-06-30 12:29:30 +03:00
Lorenzo Bianconi
2a92b08b18 mt76: usb: fix rx A-MSDU support
Commit f8f527b16d ("mt76: usb: use EP max packet aligned buffer sizes
for rx") breaks A-MSDU support. When A-MSDU is enable the device can
receive frames up to q->buf_size but they will be discarded in
mt76u_process_rx_entry since there is no enough room for
skb_shared_info. Fix the issue reallocating the skb and copying in the
linear area the first 128B of the received frames and in the frag_list
the remaining part

Fixes: f8f527b16d ("mt76: usb: use EP max packet aligned buffer sizes for rx")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-06-27 19:48:36 +03:00
Lorenzo Bianconi
676fabd1d2 mt76: mt7603: fix sparse warnings: warning: incorrect type in assignment (different base types)
Fix the following sparse warning in mt7603_mcu_set_eeprom:
drivers/net/wireless/mediatek/mt76/mt7603/mcu.c:376:30: sparse: warning:
incorrect type in assignment (different base types)
drivers/net/wireless/mediatek/mt76/mt7603/mcu.c:376:30: sparse:
expected unsigned short [usertype] addr
drivers/net/wireless/mediatek/mt76/mt7603/mcu.c:376:30: sparse: got
restricted __le16 [usertype]

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:59:07 +02:00
Lorenzo Bianconi
d923cf6bc3 mt76: mt7615: fix sparse warnings: warning: cast from restricted __le16
Do not convert {tx,rx}_mcs_map to little-endian since it is already done
by mac80211. This patch fix the following sparse warning:

drivers/net/wireless/mediatek/mt76/mt7615/mcu.c:1497:25: sparse:
warning: cast from restricted __le16
drivers/net/wireless/mediatek/mt76/mt7615/mcu.c:1499:25: sparse:
warning: cast from restricted __le16

Fixes: 04b8e65922 ("mt76: add mac80211 driver for MT7615 PCIe-based chipsets")
Fixes: 3ca0a6f6e9df ("mt7615: mcu: use standard signature for mt7615_mcu_msg_send")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
eda96044de mt76: mt7615: fix sparse warnings: incorrect type in assignment (different base types)
Fix the following sparse warning in mt7615_mcu_bss_info_ext_header:
drivers/net/wireless/mediatek/mt76/mt7615/mcu.c:728:30: sparse: sparse:
incorrect type in assignment (different base types)
drivers/net/wireless/mediatek/mt76/mt7615/mcu.c:728:30: sparse:
expected restricted __le32 [usertype] mbss_tsf_offset

Reported-by: kbuild test robot <lkp@intel.com>
Fixes: 04b8e65922 ("mt76: add mac80211 driver for MT7615 PCIe-based chipsets")
Fixes: 7339fbc0caa5 ("mt7615: mcu: do not use function pointers whenever possible")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
81ca02a174 mt76: mt76u: get rid of {out,in}_max_packet
Remove {out,in}_max_packet from mt76_usb data structure since
they just track last usb endpoint and they are not actually used

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
d8b8890d59 mt76: move nl80211_dfs_regions in mt76_dev data structure
Move dfs region field in mt76_dev data structure since it is
used by all drivers. This is a preliminary patch to add DFS support to
mt7615 driver

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
07d557f640 mt76: mt7615: remove cfg80211_chan_def from mt7615_set_channel signature
Simplify mt7615_set_channel signature removing cfg80211_chan_def
parameter since it is not actually used

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
14663f0c8d 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 <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Ryder Lee
e991c4c299 mt76: mt7615: update peer's bssid when state transition occurs
This makes sure that the driver update peer's bssid when state
transition occurs.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Ryder Lee
1a09d9e0e5 mt76: mt7615: fix incorrect settings in mesh mode
Fix wrong settings that will drop packets due to hardware's RX table
searching flow.

Fixes: f072c7ba2150 ("mt76: mt7615: enable support for mesh")
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
18bb262787 mt76: mt76x02u: fix sparse warnings: should it be static?
Fix following sparse warnings in mt76x02_usb_core.c

drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c:29:6: warning:
symbol 'mt76x02u_tx_complete_skb' was not declared. Should it be static?
drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c:37:5: warning:
symbol 'mt76x02u_skb_dma_info' was not declared. Should it be static?
drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c:96:52: warning:
restricted __le16 degrades to integer
drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c:74:5: warning:
symbol 'mt76x02u_tx_prepare_skb' was not declared. Should it be static?
drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c:244:6: warning:
symbol 'mt76x02u_init_beacon_config' was not declared. Should it be
static?
drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c:262:6: warning:
symbol 'mt76x02u_exit_beacon_config' was not declared. Should it be
static?

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
16a2f8e2ca mt76: mt7615: take into account extPA when configuring tx power
When TSSI calibration is disabled (which it means the device has been
equipped with an external power amplifier) we need to refer to
different eeprom fields in order to properly configure tx power

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
391ff7ffd1 mt76: mt7615: init per-channel target power
Set per-channel target power as the minimum between the regulatory
tx power and the value configured in the eeprom

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Ryder Lee
bf92e76851 mt76: mt7615: add support for per-chain signal strength reporting
Fill in RX status->chain_signal to avoid empty value.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
760556042a mt76: mt7615: simplify mt7615_mcu_set_sta_rec routine
Move conn_type configuration directly in mt7615_mcu_set_sta_rec and
remove sta_rec_convert_vif_type since it is actually used just in
mt7615_mcu_set_sta_rec

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Felix Fietkau
ac7ff57127 mt76: mt7603: improve hardware rate switching configuration
Now that tx status reporting can figure out the first attempted rate, we can
make switching from lower rates to higher rates more conservative.
This reduces retries under bad link conditions and ensures that fallback
rates get more test coverage

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Felix Fietkau
c5211e997e mt76: mt7603: rework and fix tx status reporting
Tx status reporting on mt7603 has a number of issues:

- the hardware can alter the first rate index, but it is not reported to
  the driver
- probing is very imprecise, because it alters the per-client rate set,
  but only considers info->status.rates for rate selection of a single probe
  packet
- short/long GI selection has limitations, which are not accurately reported
  to mac80211
- if rates are changed while packets are in flight, tx status reports for
  the old rate set might be processed based on the new selection

This led to very suboptimal rate selection with minstrel_ht.

This patch completely reworks tx status reporting to get rid of these
limitations:

- Store the previous and current rate set in the driver + the TSF value
  at the time of the switch.
- Use the tx status TSF value to determine which rate set needs to be used
  as reference.
- Report only short or long GI rates for a single status event, not a mix.
- The hardware reports the last used rate index. Use it along with the
  retry count to figure out what rate was used for the first attempt.
- Use the same retry count value for all rate slots to make this calculation
  work.
- Derive the probe rate from the current rateset instead of the skb cb
- Do not wait for a status report for the probe frame before removing the
  probe rate from the rate table. Do it immediately after it was referenced
  in a tx status report.
- Use the first half of the first rate retry budget for the probe rate
  in order to avoid using too many retries on that rate

With this patch, throughput under bad link conditions is improved
significantly, and there is a lot less rate fluctuation going on.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Felix Fietkau
10ece0086f mt76: mt76x0: fix RF frontend initialization for external PA
When loading EEPROM data from flash, the RF frontend settings need to be
initialized from flash data. Without this, the chip loads the wrong values
from its internal eFuse ROM.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
f57d8fa7fb mt76: mt7615: remove key check in mt7615_mcu_set_wtbl_key
Do not check key pointer in mt7615_mcu_set_wtbl_key since if set_key_cmd
is SET_KEY, key will be always not NULL. This patch will address a false
positive reported by Coverity-Scan

Addresses-Coverity-ID: 1445463 ("Dereference after null check")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
80d2cb4e9c mt76: mt7615: remove unused variable in mt7615_mcu_set_bcn
Remove tim_len in mt7615_mcu_set_bcn since it is not actually used
and ieee80211_beacon_get_tim checks if tim_length is NULL

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Ryder Lee
fe559aedef mt76: mt7615: fix slow performance when enable encryption
Fix wrong WCID assignment and add RKV (RX Key of this entry is valid)
flag to check if peer uses the same configuration with previous
handshaking.

If the configuration is mismatch, WTBL indicates a “cipher mismatch”
to stop SEC decryption to prevent the packet from damage.

Suggested-by: YF Luo <yf.luo@mediatek.com>
Suggested-by: Yiwei Chung <yiwei.chung@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Ryder Lee
f4ec7fdf7f mt76: mt7615: enable support for mesh
Enable NL80211_IFTYPE_MESH_POINT and update its path.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
YueHaibing
d3edd108e5 mt76: Remove set but not used variables 'pid' and 'final_mpdu'
Fixes gcc '-Wunused-but-set-variable' warnings:

drivers/net/wireless/mediatek/mt76/mt7603/mac.c: In function mt7603_fill_txs:
drivers/net/wireless/mediatek/mt76/mt7603/mac.c:969:5: warning: variable pid set but not used [-Wunused-but-set-variable]
drivers/net/wireless/mediatek/mt76/mt7603/mac.c:961:7: warning: variable final_mpdu set but not used [-Wunused-but-set-variable]
drivers/net/wireless/mediatek/mt76/mt7615/mac.c: In function mt7615_fill_txs:
drivers/net/wireless/mediatek/mt76/mt7615/mac.c:555:5: warning: variable pid set but not used [-Wunused-but-set-variable]
drivers/net/wireless/mediatek/mt76/mt7615/mac.c:552:19: warning: variable final_mpdu set but not used [-Wunused-but-set-variable]

They are never used, so can be removed.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
d2679d65fe mt76: move mt76_get_rate in mt76-module
Move mt7603_get_rate in mac80211.c and rename it to mt76_get_rate
since it is shared between mt7603 and mt7615 drivers

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
892fe32b9c mt76: mt7615: rearrange locking in mt7615_config
Since all the routines in mt7615_config grub mt76.mutex moves
mutex_lock/mutex_unlock at the beginning/end of mt7615_config

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
2fccf4f026 mt76: mt7615: init get_txpower mac80211 callback
Initialize get_txpower mac80211 callback to mt76_get_txpower
in order to report the configured tx power to mac80211

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
61d368247e mt76: mt7615: add the capability to configure tx power
Introduce mt7615_mcu_set_tx_power routine in order to cap tx power
according to the value configured by the user

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
c19b0ca503 mt76: generalize mt76_get_txpower for 4x4:4 devices
Genralize mt76_get_txpower routine for 4x4:4 capable devices
in order to be reused in mt7615 driver

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
c988a77f1d mt76: mt7615: select wifi band according to eeprom
Select supported band according to the value read from
eeprom mtd/otp partition

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
f9461a6879 mt76: mt7615: add support for mtd eeprom parsing
Calibration data are often available on a specific mtd partition on
embedded devices. Take into account eeprom calibration data if
available.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Lorenzo Bianconi
eadfd98f40 mt76: move mt76_insert_ccmp_hdr in mt76-module
Move mt7615_insert_ccmp_hdr in mac80211.c and rename it in
mt76_insert_ccmp_hdr since it is shared between mt7603 and mt7615
drivers

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Felix Fietkau
5c280ae767 mt76: mt76x02: fix tx reordering on rate control probing without a-mpdu
To avoid aggregating rate control probing packets with other traffic, and to
ensure that the probing rate gets used, probing packets get assigned a different
internal queueing priority.
This causes packets to be transmitted in a different order, which is compensated
by the receiver side reordering.
However, if A-MPDU is disabled, this reordering can become visible to upper
layers on the receiver side. Disable the priority change if A-MPDU is disabled.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Felix Fietkau
8548c6eb23 mt76: mt76x02: fix tx status reporting issues
When the hardware falls back to lower rates for a transmit attempt, only the
first status report will show the number of retries correctly. The frames
that follow will report the correct final rate, but number of retries set to 0.
This can cause the rate control module to vastly underestimate the number of
retransmissions per rate.

To fix this, we need to keep track of the initial requested tx rate per packet
and pass it to the status information.
For frames with tx status requested, this is simple: use the rate configured
in info->control.rates[0] as reference.
For no-skb tx status information, we have to encode the requested tx rate in
the packet id (and make it possible to distinguish it from real packet ids).

To do that, reduce the packet id field size by one bit, and use that bit to
indicate packet id vs rate.

This change also improves reporting by filling the status rate array with
rates from first rate to final rate, taking the same steps as the hardware
fallback table. This matters in corner cases like MCS8 on HT, where the
fallback target is MCS0, not MCS7.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Felix Fietkau
0995257242 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 <nbd@nbd.name>
2019-06-27 12:58:13 +02:00
Felix Fietkau
b0297b6738 mt76: mt7603: fix reading target tx power from eeprom
For the external PA (TSSI OFF) case, the target power needs to be read
from a different location in EEPROM

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27 12:56:04 +02:00
David S. Miller
a8b7910523 wireless-drivers-next patches for 5.3
First set of patches for 5.3, but not that many patches this time.
 
 This pull request fails to compile with the tip tree due to
 ktime_get_boot_ns() API changes there. It should be easy for Linus to
 fix it in p54 driver once he pulls this, an example resolution here:
 
 https://lkml.kernel.org/r/20190625160432.533aa140@canb.auug.org.au
 
 Major changes:
 
 airo
 
 * switch to use skcipher interface
 
 p54
 
 * support boottime in scan results
 
 rtw88
 
 * add fast xmit support
 
 * add random mac address on scan support
 
 rt2x00
 
 * add software watchdog to detect hangs, it's disabled by default
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Merge tag 'wireless-drivers-next-for-davem-2019-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valu says:

====================
wireless-drivers-next patches for 5.3

First set of patches for 5.3, but not that many patches this time.

This pull request fails to compile with the tip tree due to
ktime_get_boot_ns() API changes there. It should be easy for Linus to
fix it in p54 driver once he pulls this, an example resolution here:

https://lkml.kernel.org/r/20190625160432.533aa140@canb.auug.org.au

Major changes:

airo

* switch to use skcipher interface

p54

* support boottime in scan results

rtw88

* add fast xmit support

* add random mac address on scan support

rt2x00

* add software watchdog to detect hangs, it's disabled by default
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-26 10:12:17 -07:00
Lorenzo Bianconi
2dcb79cde6 mt76: mt7615: do not process rx packets if the device is not initialized
Fix following crash that occurs when the driver is processing rx packets
while the device is not initialized yet

$ rmmod mt7615e
[   67.210261] mt7615e 0000:01:00.0: Message -239 (seq 2) timeout
$ modprobe mt7615e
[   72.406937] bus=0x1, slot = 0x0, irq=0x16
[   72.436590] CPU 0 Unable to handle kernel paging request at virtual address 00000004, epc == 8eec4240, ra == 8eec41e0
[   72.450291] mt7615e 0000:01:00.0: Firmware is not ready for download
[   72.457724] Oops[#1]:
[   72.470494] mt7615e: probe of 0000:01:00.0 failed with error -5
[   72.474829] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.14.114 #0
[   72.498702] task: 805769e0 task.stack: 80564000
[   72.507709] $ 0   : 00000000 00000001 00000000 00000001
[   72.518106] $ 4   : 8f704dbc 00000000 00000000 8f7046c0
[   72.528500] $ 8   : 00000024 8045e98c 81210008 11000000
[   72.538895] $12   : 8fc09f60 00000008 00000019 00000033
[   72.549289] $16   : 8f704d80 e00000ff 8f0c7800 3c182406
[   72.559684] $20   : 00000006 8ee615a0 4e000108 00000000
[   72.570078] $24   : 0000004c 8000cf94
[   72.580474] $28   : 80564000 8fc09e38 00000001 8eec41e0
[   72.590869] Hi    : 00000001
[   72.596582] Lo    : 00000000
[   72.602319] epc   : 8eec4240 mt7615_mac_fill_rx+0xac/0x494 [mt7615e]
[   72.614953] ra    : 8eec41e0 mt7615_mac_fill_rx+0x4c/0x494 [mt7615e]
[   72.627580] Status: 11008403 KERNEL EXL IE
[   72.635899] Cause : 40800008 (ExcCode 02)
[   72.643860] BadVA : 00000004
[   72.649573] PrId  : 0001992f (MIPS 1004Kc)
[   72.657704] Modules linked in: mt7615e pppoe ppp_async pppox ppp_generic nf_conntrack_ipv6 mt76x2e mt76x2_common mt76x02_lib mt7603e mt76 mac80211 iptable_nat ipt_REJECT ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_nat xt_mu]
[   72.792717] Process swapper/0 (pid: 0, threadinfo=80564000, task=805769e0, tls=00000000)
[   72.808799] Stack : 8f0c7800 00000800 8f0c7800 8032b874 00000000 40000000 8f704d80 8ee615a0
[   72.825428]         8dc88010 00000001 8ee615e0 8eec09b0 8dc88010 8032b914 8f3aee80 80567d20
[   72.842055]         00000000 8ee615e0 40000000 8f0c7800 00000108 8eec9944 00000000 00000000
[   72.858682]         80508f10 80510000 00000001 80567d20 8ee615a0 00000000 00000000 8ee61c00
[   72.875308]         8ee61c40 00000040 80610000 80580000 00000000 8ee615dc 8ee61a68 00000001
[   72.891936]         ...
[   72.896793] Call Trace:
[   72.901649] [<8eec4240>] mt7615_mac_fill_rx+0xac/0x494 [mt7615e]
[   72.913602] [<8eec09b0>] mt7615_queue_rx_skb+0xe4/0x12c [mt7615e]
[   72.925734] [<8eec9944>] mt76_dma_cleanup+0x390/0x42c [mt76]
[   72.936988] Code: ae020018  8ea20004  24030001 <94420004> a602002a  8ea20004  90420000  14430003  a2020034
[   72.956390]
[   72.959676] ---[ end trace f176967739edb19f ]---

Fixes: 04b8e65922 ("mt76: add mac80211 driver for MT7615 PCIe-based chipsets")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:27 +02:00
Lorenzo Bianconi
4a8c99c737 mt76: mt76x02: fix edcca file permission
Use 0600 as edcca file permission in mt76x02 debugfs

Fixes: 643749d4a8 ("mt76: mt76x02: disable ED/CCA by default")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:27 +02:00
Lorenzo Bianconi
984d885437 mt76: mt7603: add debugfs knob to enable/disable edcca
Introduce a knob in mt7603 debugfs in order to enable/disable
energy detection based on CCA thresholds

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:27 +02:00
Lorenzo Bianconi
8aac454dbb 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 <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:27 +02:00
Lorenzo Bianconi
6e4caaea99 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 <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:27 +02:00
Lorenzo Bianconi
8424814342 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 <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:27 +02:00
Lorenzo Bianconi
a78f15471c 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 <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:27 +02:00
Lorenzo Bianconi
f9e5b885fa mt76: mt7615: add static qualifier to mt7615_rx_poll_complete
Make mt7615_rx_poll_complete static since it is used just in pci.c
to initialize rx_poll_complete function pointer

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:27 +02:00
Lorenzo Bianconi
132191a8b8 mt76: mt7615: rearrange cleanup operations in mt7615_unregister_device
Cleanup tx/rx napi before releasing pending idrs.
Moreover unmap txwi_cache running mt76_free_device routine

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:27 +02:00
Lorenzo Bianconi
c38cbba4ca mt76: mt7603: stop mac80211 queues before setting the channel
Suspend data transmission during channel switch

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:27 +02:00
Lorenzo Bianconi
b28248ec91 mt7615: mcu: run __mt76_mcu_send_msg in mt7615_mcu_send_firmware
Run __mt76_mcu_send_msg instead of __mt7615_mcu_msg_send and remove
duplicated code.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:26 +02:00
Lorenzo Bianconi
5d15f2ea16 mt7615: mcu: init mcu_restart function pointer
Use common function wrapper in mt7615_mcu_exit since the code is shared
with m7603 driver

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:26 +02:00
Lorenzo Bianconi
a3a2c2e79c mt7615: initialize mt76_mcu_ops data structure
Use __mt76_mcu_send_msg wrapper instead of mt7615_mcu_msg_send.
This is a preliminary patch for mt7615-mt7603 mcu code unification

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:26 +02:00
Lorenzo Bianconi
516c3e3805 mt7615: mcu: use standard signature for mt7615_mcu_msg_send
Use mt76 common signature for mt7615_mcu_msg_send. Move skb allocation
in mt7615_mcu_msg_send and remove duplicated code. Remove
__mt7615_mcu_set_wtbl and __mt7615_mcu_set_sta_rec since now are used
just to send mcu msgs.  This is a preliminary patch for mt7615-mt7603 mcu
code unification

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:26 +02:00
Lorenzo Bianconi
eb2024b087 mt7615: mcu: remove unused structure in mcu.h
Remove following struct no longer used:
- dev_info
- bss_info
- bss_info_tag_handler

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:26 +02:00
Lorenzo Bianconi
1ca8089a55 mt7615: mcu: do not use function pointers whenever possible
Remove function pointers in mt7615_mcu_set_bss_info and run function
directly. Moreover remove __mt7615_mcu_set_bss_info since it is run just
by mt7615_mcu_set_bss_info and remove duplicated istructions

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:26 +02:00
Lorenzo Bianconi
fddc827ffc mt7615: mcu: unify __mt7615_mcu_set_dev_info and mt7615_mcu_set_dev_info
Unify mt7615_mcu_set_dev_info and __mt7615_mcu_set_dev_info since the
latter is run just by mt7615_mcu_set_dev_info

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:26 +02:00
Lorenzo Bianconi
893369b769 mt7615: mcu: remove skb_ret from mt7615_mcu_msg_send
Remove skb_ret parameter from mt7615_mcu_msg_send signature since it is
actually used just by mt7615_mcu_patch_sem_ctrl. This is a prelimanry
patch to use mt76 common mcu API

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:26 +02:00
Lorenzo Bianconi
33d9ed728e mt7615: remove dest from mt7615_mcu_msg_send signature
Remove dest parameter from mt7615_mcu_msg_send/__mt7615_mcu_msg_send
routine signature since it can is always set to MCU_S2D_H2N

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:26 +02:00
Lorenzo Bianconi
27da3bfd31 mt7615: remove query from mt7615_mcu_msg_send signature
Remove query parameter from mt7615_mcu_msg_send routine signature since
it can be obtained from cmd value

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:26 +02:00
Lorenzo Bianconi
b1722925d2 mt7615: mcu: remove unused parameter in mt7615_mcu_del_wtbl
Remove unused vif parameter in mt7615_mcu_del_wtbl signature

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:26 +02:00
Lorenzo Bianconi
598a44344f mt7615: mcu: unify mt7615_mcu_add_wtbl_bmc and mt7615_mcu_del_wtbl_bmc
Remove duplicated code in mt7615_bss_info_changed

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:26 +02:00
Lorenzo Bianconi
d7228bcf7b mt7615: mcu: use proper msg size in mt7615_mcu_add_wtbl
Use proper mcu message size in mt7615_mcu_add_wtbl and do not
allocate a huge buffer. Moreover use stack memory instead of heap one

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:26 +02:00
Lorenzo Bianconi
77eaa281c2 mt7615: mcu: use proper msg size in mt7615_mcu_add_wtbl_bmc
Use proper mcu message size in mt7615_mcu_add_wtbl_bmc and do not
allocate a huge buffer. Moreover use stack memory instead of heap one

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:26 +02:00
Lorenzo Bianconi
b876457c6a mt7615: mcu: remove bss_info_convert_vif_type routine
Remove bss_info_convert_vif_type routine since it is run just in
mt7615_mcu_set_bss_info and the switch over vif->type is already there.
Simplify mt7615_mcu_set_bss_info routine

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:25 +02:00
Lorenzo Bianconi
0467448d2e mt7615: mcu: simplify __mt7615_mcu_set_sta_rec
Do not loop over cmd payload in __mt7615_mcu_set_sta_rec since it is
already done in before running __mt7615_mcu_set_sta_rec (e.g.
mt7615_mcu_set_sta_rec)

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:25 +02:00
Lorenzo Bianconi
8e309f7dc7 mt7615: mcu: simplify __mt7615_mcu_set_wtbl
Do not loop over cmd payload in __mt7615_mcu_set_wtbl since it is
already done in before running __mt7615_mcu_set_wtbl (e.g.
mt7615_mcu_set_wtbl_key)

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:25 +02:00
YueHaibing
fd5f65c552 mt76: mt7615: Make mt7615_irq_handler static
Fix sparse warning:

drivers/net/wireless/mediatek/mt76/mt7615/pci.c:37:13:
 warning: symbol 'mt7615_irq_handler' was not declared. Should it be static?

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:25 +02:00
Dan Carpenter
9db1aec0c2 mt76: mt7615: Use after free in mt7615_mcu_set_bcn()
We dereference "skb" when we assign:

	req.pkt_len = cpu_to_le16(MT_TXD_SIZE + skb->len);
                                                ^^^^^^^^
So this patch just moves the dev_kfree_skb() down a bit to avoid the
use after free.

Fixes: 04b8e65922 ("mt76: add mac80211 driver for MT7615 PCIe-based chipsets")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:25 +02:00
Dan Carpenter
b1571a0e77 mt76: Fix a signedness bug in mt7615_add_interface()
The problem is that "mvif->omac_idx" is a u8 so it can't be negative
and the error handling won't work.  The get_omac_idx() function returns
-1 on error.

Fixes: 04b8e65922 ("mt76: add mac80211 driver for MT7615 PCIe-based chipsets")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:25 +02:00
Lorenzo Bianconi
4875e34679 mt76: move netif_napi_del in mt76_dma_cleanup
Move netif_napi_del in mt76_dma_cleanup routine since it is done
by all drivers

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:25 +02:00
Lorenzo Bianconi
8357f0dcd8 mt76: mt7615: use napi polling for tx cleanup
This allows tx scheduling and tx cleanup to run concurrently

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:25 +02:00
Lorenzo Bianconi
9e63f5e76b mt76: mt7603: use napi polling for tx cleanup
This allows tx scheduling and tx cleanup to run concurrently

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:25 +02:00
Lorenzo Bianconi
8402650aa7 mt76: move tx_napi in mt76_dev
Move tx_napi in mt76_dev data structure in order to implement
concurrency between tx scheduling and tx cleanup in mt7603 and mt7615
drivers

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:25 +02:00
Lorenzo Bianconi
c15b0f7cd0 mt76: mt76x02: remove useless return in mt76x02_resync_beacon_timer
Remove useless return statment in mt76x02_resync_beacon_timer routine

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25 12:55:25 +02:00
Lorenzo Bianconi
23377c200b mt7601u: fix possible memory leak when the device is disconnected
When the device is disconnected while passing traffic it is possible
to receive out of order urbs causing a memory leak since the skb linked
to the current tx urb is not removed. Fix the issue deallocating the skb
cleaning up the tx ring. Moreover this patch fixes the following kernel
warning

[   57.480771] usb 1-1: USB disconnect, device number 2
[   57.483451] ------------[ cut here ]------------
[   57.483462] TX urb mismatch
[   57.483481] WARNING: CPU: 1 PID: 32 at drivers/net/wireless/mediatek/mt7601u/dma.c:245 mt7601u_complete_tx+0x165/00
[   57.483483] Modules linked in:
[   57.483496] CPU: 1 PID: 32 Comm: kworker/1:1 Not tainted 5.2.0-rc1+ #72
[   57.483498] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.12.0-2.fc30 04/01/2014
[   57.483502] Workqueue: usb_hub_wq hub_event
[   57.483507] RIP: 0010:mt7601u_complete_tx+0x165/0x1e0
[   57.483510] Code: 8b b5 10 04 00 00 8b 8d 14 04 00 00 eb 8b 80 3d b1 cb e1 00 00 75 9e 48 c7 c7 a4 ea 05 82 c6 05 f
[   57.483513] RSP: 0000:ffffc900000a0d28 EFLAGS: 00010092
[   57.483516] RAX: 000000000000000f RBX: ffff88802c0a62c0 RCX: ffffc900000a0c2c
[   57.483518] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff810a8371
[   57.483520] RBP: ffff88803ced6858 R08: 0000000000000000 R09: 0000000000000001
[   57.483540] R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000046
[   57.483542] R13: ffff88802c0a6c88 R14: ffff88803baab540 R15: ffff88803a0cc078
[   57.483548] FS:  0000000000000000(0000) GS:ffff88803eb00000(0000) knlGS:0000000000000000
[   57.483550] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   57.483552] CR2: 000055e7f6780100 CR3: 0000000028c86000 CR4: 00000000000006a0
[   57.483554] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   57.483556] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   57.483559] Call Trace:
[   57.483561]  <IRQ>
[   57.483565]  __usb_hcd_giveback_urb+0x77/0xe0
[   57.483570]  xhci_giveback_urb_in_irq.isra.0+0x8b/0x140
[   57.483574]  handle_cmd_completion+0xf5b/0x12c0
[   57.483577]  xhci_irq+0x1f6/0x1810
[   57.483581]  ? lockdep_hardirqs_on+0x9e/0x180
[   57.483584]  ? _raw_spin_unlock_irq+0x24/0x30
[   57.483588]  __handle_irq_event_percpu+0x3a/0x260
[   57.483592]  handle_irq_event_percpu+0x1c/0x60
[   57.483595]  handle_irq_event+0x2f/0x4c
[   57.483599]  handle_edge_irq+0x7e/0x1a0
[   57.483603]  handle_irq+0x17/0x20
[   57.483607]  do_IRQ+0x54/0x110
[   57.483610]  common_interrupt+0xf/0xf
[   57.483612]  </IRQ>

Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-06-25 08:01:03 +03:00
Lorenzo Bianconi
4079e8ccab mt7601u: do not schedule rx_tasklet when the device has been disconnected
Do not schedule rx_tasklet when the usb dongle is disconnected.
Moreover do not grub rx_lock in mt7601u_kill_rx since usb_poison_urb
can run concurrently with urb completion and we can unlink urbs from rx
ring in any order.
This patch fixes the common kernel warning reported when
the device is removed.

[   24.921354] usb 3-14: USB disconnect, device number 7
[   24.921593] ------------[ cut here ]------------
[   24.921594] RX urb mismatch
[   24.921675] WARNING: CPU: 4 PID: 163 at drivers/net/wireless/mediatek/mt7601u/dma.c:200 mt7601u_complete_rx+0xcb/0xd0 [mt7601u]
[   24.921769] CPU: 4 PID: 163 Comm: kworker/4:2 Tainted: G           OE     4.19.31-041931-generic #201903231635
[   24.921770] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z97 Extreme4, BIOS P1.30 05/23/2014
[   24.921782] Workqueue: usb_hub_wq hub_event
[   24.921797] RIP: 0010:mt7601u_complete_rx+0xcb/0xd0 [mt7601u]
[   24.921800] RSP: 0018:ffff9bd9cfd03d08 EFLAGS: 00010086
[   24.921802] RAX: 0000000000000000 RBX: ffff9bd9bf043540 RCX: 0000000000000006
[   24.921803] RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffff9bd9cfd16420
[   24.921804] RBP: ffff9bd9cfd03d28 R08: 0000000000000002 R09: 00000000000003a8
[   24.921805] R10: 0000002f485fca34 R11: 0000000000000000 R12: ffff9bd9bf043c1c
[   24.921806] R13: ffff9bd9c62fa3c0 R14: 0000000000000082 R15: 0000000000000000
[   24.921807] FS:  0000000000000000(0000) GS:ffff9bd9cfd00000(0000) knlGS:0000000000000000
[   24.921808] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.921808] CR2: 00007fb2648b0000 CR3: 0000000142c0a004 CR4: 00000000001606e0
[   24.921809] Call Trace:
[   24.921812]  <IRQ>
[   24.921819]  __usb_hcd_giveback_urb+0x8b/0x140
[   24.921821]  usb_hcd_giveback_urb+0xca/0xe0
[   24.921828]  xhci_giveback_urb_in_irq.isra.42+0x82/0xf0
[   24.921834]  handle_cmd_completion+0xe02/0x10d0
[   24.921837]  xhci_irq+0x274/0x4a0
[   24.921838]  xhci_msi_irq+0x11/0x20
[   24.921851]  __handle_irq_event_percpu+0x44/0x190
[   24.921856]  handle_irq_event_percpu+0x32/0x80
[   24.921861]  handle_irq_event+0x3b/0x5a
[   24.921867]  handle_edge_irq+0x80/0x190
[   24.921874]  handle_irq+0x20/0x30
[   24.921889]  do_IRQ+0x4e/0xe0
[   24.921891]  common_interrupt+0xf/0xf
[   24.921892]  </IRQ>
[   24.921900] RIP: 0010:usb_hcd_flush_endpoint+0x78/0x180
[   24.921354] usb 3-14: USB disconnect, device number 7

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-06-25 08:01:02 +03:00
Thomas Gleixner
1802d0beec treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 655 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:41 -07:00
Thomas Gleixner
ec8f24b7fa treewide: Add SPDX license identifier - Makefile/Kconfig
Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:50:46 +02:00
Petr Štetiar
1b9705d971 net: wireless: mt76: fix similar warning reported by kbuild test robot
This patch fixes following (similar) warning reported by kbuild test robot:

 In function ‘memcpy’,
  inlined from ‘smsc75xx_init_mac_address’ at drivers/net/usb/smsc75xx.c:778:3,
  inlined from ‘smsc75xx_bind’ at drivers/net/usb/smsc75xx.c:1501:2:
  ./include/linux/string.h:355:9: warning: argument 2 null where non-null expected [-Wnonnull]
  return __builtin_memcpy(p, q, size);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
  drivers/net/usb/smsc75xx.c: In function ‘smsc75xx_bind’:
  ./include/linux/string.h:355:9: note: in a call to built-in function ‘__builtin_memcpy’

I've replaced the offending memcpy with ether_addr_copy, because I'm
100% sure, that of_get_mac_address can't return NULL as it returns valid
pointer or ERR_PTR encoded value, nothing else.

I'm hesitant to just change IS_ERR into IS_ERR_OR_NULL check, as this
would make the warning disappear also, but it would be confusing to
check for impossible return value just to make a compiler happy.

I'm now changing all occurencies of memcpy to ether_addr_copy after the
of_get_mac_address call, as it's very likely, that we're going to get
similar reports from kbuild test robot in the future.

Fixes: d31a36b5f4 ("net: wireless: support of_get_mac_address new ERR_PTR error")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-10 15:14:29 -07:00
Petr Štetiar
d31a36b5f4 net: wireless: support of_get_mac_address new ERR_PTR error
There was NVMEM support added to of_get_mac_address, so it could now return
ERR_PTR encoded error values, so we need to adjust all current users of
of_get_mac_address to this new fact.

Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-05 21:47:07 -07:00
Lorenzo Bianconi
4d2a6f7b4e mt76: mt7603: dynamically alloc mcu req in mt7603_mcu_set_eeprom
Do not allocate mcu requests on the stack in mt7603_mcu_set_eeprom
in order to avoid the following warning:

Warning: the frame size of 1032 bytes is larger than 1024 bytes
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:04:00 +02:00
Lorenzo Bianconi
ae66068f78 mt76: do not enable/disable pre_tbtt_tasklet in scan_start/scan_complete
Do not enable/disable pre_tbtt_tasklet tasklet in
mt76x02_sw_scan/mt76x02_sw_scan_complete since it is already done
setting the operating channel. Do run tbtt_tasklet while the device is
offchannel

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:04:00 +02:00
Lorenzo Bianconi
bd115805e8 mt76: mt7603: enable/disable pre_tbtt_tasklet in mt7603_set_channel
Disable pre_tbtt_tasklet tasklet before setting the operating channel.
Enable/disable beacon_timer in mt7603_set_channel

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:04:00 +02:00
Lorenzo Bianconi
dc6057f49a 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 <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:04:00 +02:00
Ryder Lee
f1103fa6b3 mt76: add TX/RX antenna pattern capabilities
Announce antenna pattern cap to adapt PHY and baseband settings.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:04:00 +02:00
Lorenzo Bianconi
c8a04d9854 mt76: move beacon_mask in mt76_dev
Move beacon_mask in mt76_dev data structure since it is used by
all drivers

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:04:00 +02:00
Lorenzo Bianconi
3041c445e6 mt76: move beacon_int in mt76_dev
Move beacon_int in mt76_dev data structure since it is used by
all drivers

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:04:00 +02:00
Stanislaw Gruszka
f8f527b16d mt76: usb: use EP max packet aligned buffer sizes for rx
If buffer size is not usb_endpoint_maxp (512 or 1024 bytes) multiple,
usb host driver has to use bounce buffer and copy data. For RX we can
avoid that since we alreay allocate q->buf_size (2kB) buffers and
mt76usb hardware will not fill more data as rx packet size is limited
by network protocol. However add error message if this assumption
somehow will be not true.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:04:00 +02:00
Lorenzo Bianconi
4d0fe26f7c mt76: mt7603: report firmware version using ethtool
Print fw_ver and build_date members of struct mt7603_fw_trailer
similarly to what appears in the output of 'dmesg' when the MCU firmware
is loaded.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:04:00 +02:00
Ryder Lee
e802794657 mt76: fix endianness sparse warnings
Fix many warnings with incorrect endian assumptions.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Reviewed-by: Stanislaw Gruszka <sgruszka@redhat.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:04:00 +02:00
kbuild test robot
9c7c756eb0 mt76: mt76x02: mt76x02_poll_tx() can be static
Fixes: ec7d2d74760a ("mt76: mt76x02: use napi polling for tx cleanup")
Signed-off-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:04:00 +02:00
Lorenzo Bianconi
d422bb2617 mt76: mt7603: run __mt76_mcu_send_msg in mt7603_mcu_send_firmware
Run __mt76_mcu_send_msg instead of __mt7603_mcu_msg_send and remove
duplicated code.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:04:00 +02:00
Lorenzo Bianconi
a4834814e1 mt76: mt7603: init mcu_restart function pointer
Use common function wrapper in mt7603_mcu_exit since the code is shared
with mt7615 driver

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:04:00 +02:00
Lorenzo Bianconi
e2c2fd0f69 mt76: introduce mt76_mcu_restart macro
Use common function wrapper in mt76x02_watchdog_reset

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:04:00 +02:00
Lorenzo Bianconi
cc1738751c mt76: mt7603: initialize mt76_mcu_ops data structure
Use __mt76_mcu_send_msg wrapper instead of mt7603_mcu_msg_send.
This is a preliminary patch for mt7615-mt7603 mcu code unification

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:59 +02:00
Lorenzo Bianconi
11ca82d786 mt76: mt7603: use standard signature for mt7603_mcu_msg_send
Use mt76 common signature for mt7603_mcu_msg_send. Move skb allocation
in mt7603_mcu_msg_send and remove duplicated code. This is a preliminary
patch for mt7615-mt7603 mcu code unification

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:59 +02:00
Lorenzo Bianconi
114fe5e338 mt76: mt7603: remove query from mt7603_mcu_msg_send signature
Remove query parameter from mt7603_mcu_msg_send/__mt7603_mcu_msg_send
routine signature since it can be obtained from cmd value. This is a
preliminary patch for mcu code unification between mt7615 and mt7603
drivers

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:59 +02:00
Felix Fietkau
b28e22bd9c mt76: mt7615: use sizeof instead of sizeof_field
It is simpler in this case

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:59 +02:00
Felix Fietkau
0f66947bff mt76: mt7603: fix initialization of max rx length
The previous version only accidentally disabled A-MSDU deaggregation by
using the wrong mask for rx length configuration, which left previous
length value in place.
Fix the length and initialize the register completely to keep A-MSDU
de-aggregation remaining disabled

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:59 +02:00
Felix Fietkau
6fe5333787 mt76: mt76x02: remove irqsave/restore in locking for tx status fifo
Use a separate lock and spin_trylock to avoid disabling interrupts.
Should improve performance and latency

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:59 +02:00
Felix Fietkau
2ac515a5d7 mt76: mt76x02: use napi polling for tx cleanup
This allows tx scheduling and tx cleanup to run concurrently

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:59 +02:00
Stanislaw Gruszka
091a79fd42 mt76: 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 <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:59 +02:00
Stanislaw Gruszka
39d501d93d 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 <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:59 +02:00
Stanislaw Gruszka
1fb869a2d9 mt76: 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 <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:59 +02:00
Ryder Lee
b183878a74 mt76: use macro for sn and seq_ctrl conversion
Use macro to convert sn and seq_ctrl for better readability.

Signed-off-by: Roy Luo <royluo@google.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:59 +02:00
Ryder Lee
6edf07478d mt76: add unlikely() for dma_mapping_error() check
In the tx/rx fastpath, the funciton dma_map_single() rarely fails.
This adds unlikely() optimization to this error check conditional.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:59 +02:00
Ryder Lee
04b8e65922 mt76: add mac80211 driver for MT7615 PCIe-based chipsets
This driver is for a newer generation of MediaTek MT7615 4x4 802.11ac
PCIe-based chipsets, which support wave2 MU-MIMO up to 4 users/group
and also support up to 160MHz bandwidth.

The driver fully supports AP, station and monitor mode.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Roy Luo <royluo@google.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:58 +02:00
Lorenzo Bianconi
598da38672 mt76: dma: add skb check for dummy pointer
Introduce skb check for dummy address in mt76_dma_tx_cleanup_idx.
This is a preliminary patch to add support for new chipsets (e.g. 7615)

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:58 +02:00
Lorenzo Bianconi
6ca66722a8 mt76: dma: introduce skb field in mt76_txwi_cache
Introduce skb field in mt76_txwi_cache. Moreover add txwi_flags
to mt76_driver_ops since new chipsets will release mt76_txwi_cache/skbs
at tx completion instead of dma one.
This is a preliminary patch to add mt7615 support

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:58 +02:00
Lorenzo Bianconi
cfaae9e67c mt76: add skb pointer to mt76_tx_info
Pass skb pointer to tx_prepare_skb through mt76_tx_info data structure.
This is a preliminary patch to properly support dma error path for
new chipsets (e.g. 7615)

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:58 +02:00
Lorenzo Bianconi
f3950a4141 mt76: set txwi_size according to the driver value
Dynamically allocate txwi since new chipsets will use longer txwi
descriptors

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:58 +02:00
Lorenzo Bianconi
ce0fd82589 mt76: usb: reduce locking in mt76u_tx_tasklet
Similar to pci counterpart, reduce locking in mt76u_tx_tasklet since
q->head is managed just in mt76u_tx_tasklet and q->queued is updated
holding q->lock

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:58 +02:00
Lorenzo Bianconi
37426fb67a 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 <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:58 +02:00
Felix Fietkau
41634aa8d6 mt76: only schedule txqs from the tx tasklet
Reduces lock contention from the tx path and improves performance

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:58 +02:00
Felix Fietkau
a33b8ab868 mt76: move tx tasklet to struct mt76_dev
Allows it to be scheduled from core code

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:58 +02:00
Felix Fietkau
db9f11d343 mt76: store wcid tx rate info in one u32 reduce locking
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:58 +02:00
Felix Fietkau
2fe30dce08 mt76: reduce locking in mt76_dma_tx_cleanup
q->tail can be safely updated without locking, because there is no
concurrent access. If called from outside of the tasklet (for flushing),
the tasklet is always disabled.
q->queued can be safely read without locking, as long as the decrement
happens within the locked section.
This patch allows cleaning up tx packets outside of the section that holds
the queue lock for improved performance

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:58 +02:00
Felix Fietkau
90fdc1717b mt76: use mac80211 txq scheduling
Performance improvement and preparation for adding airtime fairness support

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:58 +02:00
Felix Fietkau
d908d4ec4d mt76: use readl/writel instead of ioread32/iowrite32
Switching to readl/writel is faster because it gets rid of an unnecessary
wrapper with extra checks.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:58 +02:00
Felix Fietkau
cee646d62b 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 <nbd@nbd.name>
2019-05-01 13:03:57 +02:00
Lorenzo Bianconi
def34a2f4f 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 <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:57 +02:00
Stanislaw Gruszka
e5fc742f92 mt76usb: remove queue variable from rx_tasklet
Since now only mt76u_get_next_rx_entry use queue argument move
it to this function.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:57 +02:00
Stanislaw Gruszka
85d2955ea1 mt76usb: allocate urb and sg as linear data
Alloc sg table at the end of urb structure. This will increase
cache usage.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:57 +02:00
Stanislaw Gruszka
7524c63f1f mt76usb: remove unneded sg_init_table
We already allocate with GFP_ZERO and sg marker is set later for
both RX and TX.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:57 +02:00
Stanislaw Gruszka
48f5a90c83 mt76usb: resue mt76u_urb_alloc for tx
Add new rx_urb_alloc routine and reuse common urb_alloc for tx
allocations.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:57 +02:00
Stanislaw Gruszka
1bb78d3843 mt76usb: remove MT_RXQ_MAIN queue from mt76u_urb_alloc
Get the RX queue inside mt76u_refill_rx. This will allow to reuse
mt76u_urb_alloc for TX allocations.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:57 +02:00
Stanislaw Gruszka
d7d4ea9ac8 mt76usb: remove mt76u_buf and use urb directly
Put urb pointer in mt76_queue_entry directly instead of mt76u_buf
structure.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:57 +02:00
Stanislaw Gruszka
279ade99ed mt76usb: move mt76u_buf->done to queue entry
mt76_queue_entry has alreay one bool variable, adding new one will
not increase it's size. Removing ->done filed from mt76u_buf will
allow to use urb directly in mt76usb code.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:57 +02:00
Stanislaw Gruszka
26031b39bb mt76usb: remove mt76u_buf redundant fileds
Remove mt76u_buf->{len, buf} fields and operate on corresponding
urb fields directly.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:57 +02:00
Stanislaw Gruszka
112f980ac8 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 <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:57 +02:00
Stanislaw Gruszka
92724071aa mt76usb: change mt76u_fill_rx_sg arguments
We do not need to pass len and sglen to the function.
Additionally pass gfp to control allocation context.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:57 +02:00
Stanislaw Gruszka
069e2d345c mt76: remove rx_page_lock
We can not run mt76u_alloc_buf() concurently, rx_tasklet is stooped
when mt76u_submit_rx_buffers(). We can remove rx_page_lock.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:57 +02:00
Stanislaw Gruszka
a5ba16eb6d mt76usb: change mt76u_submit_buf
Remove unnecessery arguments and change the function name since is
now used only for RX.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:57 +02:00
Stanislaw Gruszka
02d49a2e35 mt76x02: enable AP mode for USB
Enable AP mode. For now without multi-vif support, this will require
more testing and investigation.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:56 +02:00
Stanislaw Gruszka
87d531038f 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 <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:56 +02:00
Stanislaw Gruszka
8300ee7c7d 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 <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:56 +02:00
Stanislaw Gruszka
f2276c29f8 mt76x02: make beacon slots bigger for USB
Since we sent PS buffered frames via beacon memory we need to make
beacon slots bigger. That imply we will also need to decrease number
of slots as beacon SRAM memory is limited to 8kB.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:56 +02:00
Stanislaw Gruszka
7e07c27d37 mt76x02u: implement pre TBTT work for USB
Program beacons data and PS buffered frames on TBTT work for USB.
We do not have MT_TXQ_PSD queue available via USB endpoints. The way
we can send PS broadcast frames in timely manner before PS stations go
sleep again is program them in beacon data area. Hardware do not modify
those frames since TXWI is properly configured. mt76x02_mac_set_beacon()
already handle this and free no longer used frames.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:56 +02:00
Stanislaw Gruszka
b98558e252 mt76x02: disable HW encryption for group frames
This is required to sent multicast/broadcast frames in USB AP
mode just after beacon.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:56 +02:00
Stanislaw Gruszka
2baed5db9f 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 <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:56 +02:00
Stanislaw Gruszka
31cdd44203 mt76x02: generalize some mmio beaconing functions
Move some TBTT mmio functions to mt76x02_beacon.c and create new ones
in order to be reused by USB pre-TBTT.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:56 +02:00
Stanislaw Gruszka
c6ad1feb1f mt76x02u: implement beacon_ops
Add implementation of beacon_ops for USB and exit function to
stop the timer if running when device is removed. Still no
actual work on pre tbtt event.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:56 +02:00
Stanislaw Gruszka
c004b881f1 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 <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:56 +02:00
Stanislaw Gruszka
5a3f1cc288 mt76x02: add hrtimer for pre TBTT for USB
Add timer and work for pre TBTT for USB devices. For now code
doesn't do anyting useful, just add hrtimer which synchronize
with hardware MT_TBTT_TIMER.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:56 +02:00
Stanislaw Gruszka
8d71aef9c9 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 <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:56 +02:00
Lorenzo Bianconi
cadae4772d mt76: usb: reduce code indentation in mt76u_alloc_tx
Improve code readability reducing code indentation in
mt76u_alloc_tx

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:56 +02:00
Lorenzo Bianconi
4e04ba6aa3 mt7603: core: do not use magic numbers in mt7603_reg_map
Use register definitions instead of magic numbers in mt7603_reg_map

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:56 +02:00
Lorenzo Bianconi
047348fb11 mt7603: remove mt7603_mcu_init routine
Remove mt7603_mcu_init since mcu.mutex has been already initialized
in mt76_mmio_init. Run mt7603_load_firmware directly in
mt7603_init_hardware

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:55 +02:00
Lorenzo Bianconi
eb9ca7ecd0 mt76: dma: add static qualifier to mt76_dma_tx_queue_skb
As already done for mt76_dma_tx_queue_skb_raw, add static qualifier to
mt76_dma_tx_queue_skb and introduce mt76_tx_queue_skb in order to run
mt76_dma_tx_queue_skb in driver code

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:55 +02:00
Lorenzo Bianconi
b5903c4703 mt76: introduce mt76_tx_info data structure
Add mt76_tx_info as auxiliary data structure to pass values
to tx_prepare_skb pointer. This is a preliminary patch to add
support for new chipsets (e.g. mt7615)

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:55 +02:00
Lorenzo Bianconi
eb071ba77c mt76: move skb dma mapping before running tx_prepare_skb
Move skb dma mapping before configuring txwi since new chipsets (mt7615)
will need skb dma addresses in order to properly configure txwi

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:55 +02:00
Lorenzo Bianconi
66105538a6 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 <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:55 +02:00
Lorenzo Bianconi
3bb45b5feb mt76: move mt76x02_insert_hdr_pad in mt76-core module
Move mt76x02_insert_hdr_pad in m76-core and rename it in
mt76_insert_hdr_pad in order to be used in mt76_dma_tx_queue_skb.
This is a preliminary patch in order to properly support tx dma
mapping for new chipsets (e.g. mt7615)

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:55 +02:00
Lorenzo Bianconi
d290c12114 mt76: introduce mt76_txq_id field in mt76_queue_entry
Add mt76_txq_id field to mt76_queue_entry in order to properly
track outstanding frames for mt7615 that relies on a single hw queue

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:55 +02:00
Lorenzo Bianconi
af005f2605 mt76: introduce mt76_sw_queue data structure
Introduce mt76_sw_queue data structure in order to support new
chipsets (e.g. mt7615) that have a shared hardware queue for all traffic
identifiers. mt76_sw_queue will be used to track outstanding packets

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:55 +02:00
Lorenzo Bianconi
e226ba2e35 mt76: remove mt76_queue dependency from tx_complete_skb function pointer
Remove mt76_queue dependency from tx_complete_skb function pointer and
rely on mt76_tx_qid instead. Remove flush from tx_complete_skb
signature. This is a preliminary patch to introduce mt76_sw_queue
support

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:55 +02:00
Lorenzo Bianconi
300832ad5f mt76: remove mt76_queue dependency from tx_prepare_skb function pointer
Remove mt76_queue dependency from tx_prepare_skb function pointer and
rely on mt76_tx_qid instead. This is a preliminary patch to introduce
mt76_sw_queue support

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:55 +02:00
Lorenzo Bianconi
89a37842b0 mt76: remove mt76_queue dependency from tx_queue_skb function pointer
Remove mt76_queue dependency from tx_queue_skb function pointer and
rely on mt76_tx_qid instead. This is a preliminary patch to introduce
mt76_sw_queue support

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:55 +02:00
Lorenzo Bianconi
b1bfbe704f mt76: dma: move mt76x02_init_{tx,rx}_queue in mt76 module
Move mt76x02_init_tx_queue and mt76x02_init_rx_queue in mt76
module in order to be reused adding support for mt7603 driver
and remove duplicated code.
Squash mt76x02_init_tx_queue and mt76x02_init_rx_queue in
mt76_dma_alloc_queue

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:55 +02:00
Lorenzo Bianconi
9220f695c1 mt76: mmio: move mt76x02_set_irq_mask in mt76 module
Move mt76x02_set_irq_mask in mt76 module in order to be reused
adding support for mt7603 driver and remove duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01 13:03:55 +02:00
Stanislaw Gruszka
bafdf85dfa mt76x02: avoid status_list.lock and sta->rate_ctrl_lock dependency
Move ieee80211_tx_status_ext() outside of status_list lock section
in order to avoid locking dependency and possible deadlock reposed by
LOCKDEP in below warning.

Also do mt76_tx_status_lock() just before it's needed.

[  440.224832] WARNING: possible circular locking dependency detected
[  440.224833] 5.1.0-rc2+ #22 Not tainted
[  440.224834] ------------------------------------------------------
[  440.224835] kworker/u16:28/2362 is trying to acquire lock:
[  440.224836] 0000000089b8cacf (&(&q->lock)->rlock#2){+.-.}, at: mt76_wake_tx_queue+0x4c/0xb0 [mt76]
[  440.224842]
               but task is already holding lock:
[  440.224842] 000000002cfedc59 (&(&sta->lock)->rlock){+.-.}, at: ieee80211_stop_tx_ba_cb+0x32/0x1f0 [mac80211]
[  440.224863]
               which lock already depends on the new lock.

[  440.224863]
               the existing dependency chain (in reverse order) is:
[  440.224864]
               -> #3 (&(&sta->lock)->rlock){+.-.}:
[  440.224869]        _raw_spin_lock_bh+0x34/0x40
[  440.224880]        ieee80211_start_tx_ba_session+0xe4/0x3d0 [mac80211]
[  440.224894]        minstrel_ht_get_rate+0x45c/0x510 [mac80211]
[  440.224906]        rate_control_get_rate+0xc1/0x140 [mac80211]
[  440.224918]        ieee80211_tx_h_rate_ctrl+0x195/0x3c0 [mac80211]
[  440.224930]        ieee80211_xmit_fast+0x26d/0xa50 [mac80211]
[  440.224942]        __ieee80211_subif_start_xmit+0xfc/0x310 [mac80211]
[  440.224954]        ieee80211_subif_start_xmit+0x38/0x390 [mac80211]
[  440.224956]        dev_hard_start_xmit+0xb8/0x300
[  440.224957]        __dev_queue_xmit+0x7d4/0xbb0
[  440.224968]        ip6_finish_output2+0x246/0x860 [ipv6]
[  440.224978]        mld_sendpack+0x1bd/0x360 [ipv6]
[  440.224987]        mld_ifc_timer_expire+0x1a4/0x2f0 [ipv6]
[  440.224989]        call_timer_fn+0x89/0x2a0
[  440.224990]        run_timer_softirq+0x1bd/0x4d0
[  440.224992]        __do_softirq+0xdb/0x47c
[  440.224994]        irq_exit+0xfa/0x100
[  440.224996]        smp_apic_timer_interrupt+0x9a/0x220
[  440.224997]        apic_timer_interrupt+0xf/0x20
[  440.224999]        cpuidle_enter_state+0xc1/0x470
[  440.225000]        do_idle+0x21a/0x260
[  440.225001]        cpu_startup_entry+0x19/0x20
[  440.225004]        start_secondary+0x135/0x170
[  440.225006]        secondary_startup_64+0xa4/0xb0
[  440.225007]
               -> #2 (&(&sta->rate_ctrl_lock)->rlock){+.-.}:
[  440.225009]        _raw_spin_lock_bh+0x34/0x40
[  440.225022]        rate_control_tx_status+0x4f/0xb0 [mac80211]
[  440.225031]        ieee80211_tx_status_ext+0x142/0x1a0 [mac80211]
[  440.225035]        mt76x02_send_tx_status+0x2e4/0x340 [mt76x02_lib]
[  440.225037]        mt76x02_tx_status_data+0x31/0x40 [mt76x02_lib]
[  440.225040]        mt76u_tx_status_data+0x51/0xa0 [mt76_usb]
[  440.225042]        process_one_work+0x237/0x5d0
[  440.225043]        worker_thread+0x3c/0x390
[  440.225045]        kthread+0x11d/0x140
[  440.225046]        ret_from_fork+0x3a/0x50
[  440.225047]
               -> #1 (&(&list->lock)->rlock#8){+.-.}:
[  440.225049]        _raw_spin_lock_bh+0x34/0x40
[  440.225052]        mt76_tx_status_skb_add+0x51/0x100 [mt76]
[  440.225054]        mt76x02u_tx_prepare_skb+0xbd/0x116 [mt76x02_usb]
[  440.225056]        mt76u_tx_queue_skb+0x5f/0x180 [mt76_usb]
[  440.225058]        mt76_tx+0x93/0x190 [mt76]
[  440.225070]        ieee80211_tx_frags+0x148/0x210 [mac80211]
[  440.225081]        __ieee80211_tx+0x75/0x1b0 [mac80211]
[  440.225092]        ieee80211_tx+0xde/0x110 [mac80211]
[  440.225105]        __ieee80211_tx_skb_tid_band+0x72/0x90 [mac80211]
[  440.225122]        ieee80211_send_auth+0x1f3/0x360 [mac80211]
[  440.225141]        ieee80211_auth.cold.40+0x6c/0x100 [mac80211]
[  440.225156]        ieee80211_mgd_auth.cold.50+0x132/0x15f [mac80211]
[  440.225171]        cfg80211_mlme_auth+0x149/0x360 [cfg80211]
[  440.225181]        nl80211_authenticate+0x273/0x2e0 [cfg80211]
[  440.225183]        genl_family_rcv_msg+0x196/0x3a0
[  440.225184]        genl_rcv_msg+0x47/0x8e
[  440.225185]        netlink_rcv_skb+0x3a/0xf0
[  440.225187]        genl_rcv+0x24/0x40
[  440.225188]        netlink_unicast+0x16d/0x210
[  440.225189]        netlink_sendmsg+0x204/0x3b0
[  440.225191]        sock_sendmsg+0x36/0x40
[  440.225193]        ___sys_sendmsg+0x259/0x2b0
[  440.225194]        __sys_sendmsg+0x47/0x80
[  440.225196]        do_syscall_64+0x60/0x1f0
[  440.225197]        entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  440.225198]
               -> #0 (&(&q->lock)->rlock#2){+.-.}:
[  440.225200]        lock_acquire+0xb9/0x1a0
[  440.225202]        _raw_spin_lock_bh+0x34/0x40
[  440.225204]        mt76_wake_tx_queue+0x4c/0xb0 [mt76]
[  440.225215]        ieee80211_agg_start_txq+0xe8/0x2b0 [mac80211]
[  440.225225]        ieee80211_stop_tx_ba_cb+0xb8/0x1f0 [mac80211]
[  440.225235]        ieee80211_ba_session_work+0x1c1/0x2f0 [mac80211]
[  440.225236]        process_one_work+0x237/0x5d0
[  440.225237]        worker_thread+0x3c/0x390
[  440.225239]        kthread+0x11d/0x140
[  440.225240]        ret_from_fork+0x3a/0x50
[  440.225240]
               other info that might help us debug this:

[  440.225241] Chain exists of:
                 &(&q->lock)->rlock#2 --> &(&sta->rate_ctrl_lock)->rlock --> &(&sta->lock)->rlock

[  440.225243]  Possible unsafe locking scenario:

[  440.225244]        CPU0                    CPU1
[  440.225244]        ----                    ----
[  440.225245]   lock(&(&sta->lock)->rlock);
[  440.225245]                                lock(&(&sta->rate_ctrl_lock)->rlock);
[  440.225246]                                lock(&(&sta->lock)->rlock);
[  440.225247]   lock(&(&q->lock)->rlock#2);
[  440.225248]
                *** DEADLOCK ***

[  440.225249] 5 locks held by kworker/u16:28/2362:
[  440.225250]  #0: 0000000048fcd291 ((wq_completion)phy0){+.+.}, at: process_one_work+0x1b5/0x5d0
[  440.225252]  #1: 00000000f1c6828f ((work_completion)(&sta->ampdu_mlme.work)){+.+.}, at: process_one_work+0x1b5/0x5d0
[  440.225254]  #2: 00000000433d2b2c (&sta->ampdu_mlme.mtx){+.+.}, at: ieee80211_ba_session_work+0x5c/0x2f0 [mac80211]
[  440.225265]  #3: 000000002cfedc59 (&(&sta->lock)->rlock){+.-.}, at: ieee80211_stop_tx_ba_cb+0x32/0x1f0 [mac80211]
[  440.225276]  #4: 000000009d7b9a44 (rcu_read_lock){....}, at: ieee80211_agg_start_txq+0x33/0x2b0 [mac80211]
[  440.225286]
               stack backtrace:
[  440.225288] CPU: 2 PID: 2362 Comm: kworker/u16:28 Not tainted 5.1.0-rc2+ #22
[  440.225289] Hardware name: LENOVO 20KGS23S0P/20KGS23S0P, BIOS N23ET55W (1.30 ) 08/31/2018
[  440.225300] Workqueue: phy0 ieee80211_ba_session_work [mac80211]
[  440.225301] Call Trace:
[  440.225304]  dump_stack+0x85/0xc0
[  440.225306]  print_circular_bug.isra.38.cold.58+0x15c/0x195
[  440.225307]  check_prev_add.constprop.48+0x5f0/0xc00
[  440.225309]  ? check_prev_add.constprop.48+0x39d/0xc00
[  440.225311]  ? __lock_acquire+0x41d/0x1100
[  440.225312]  __lock_acquire+0xd98/0x1100
[  440.225313]  ? __lock_acquire+0x41d/0x1100
[  440.225315]  lock_acquire+0xb9/0x1a0
[  440.225317]  ? mt76_wake_tx_queue+0x4c/0xb0 [mt76]
[  440.225319]  _raw_spin_lock_bh+0x34/0x40
[  440.225321]  ? mt76_wake_tx_queue+0x4c/0xb0 [mt76]
[  440.225323]  mt76_wake_tx_queue+0x4c/0xb0 [mt76]
[  440.225334]  ieee80211_agg_start_txq+0xe8/0x2b0 [mac80211]
[  440.225344]  ieee80211_stop_tx_ba_cb+0xb8/0x1f0 [mac80211]
[  440.225354]  ieee80211_ba_session_work+0x1c1/0x2f0 [mac80211]
[  440.225356]  process_one_work+0x237/0x5d0
[  440.225358]  worker_thread+0x3c/0x390
[  440.225359]  ? wq_calc_node_cpumask+0x70/0x70
[  440.225360]  kthread+0x11d/0x140
[  440.225362]  ? kthread_create_on_node+0x40/0x40
[  440.225363]  ret_from_fork+0x3a/0x50

Cc: stable@vger.kernel.org
Fixes: 88046b2c9f ("mt76: add support for reporting tx status with skb")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-04-12 21:32:40 +03:00
Felix Fietkau
9dc27bcbe7 mt76: mt7603: send BAR after powersave wakeup
Now that the sequence number allocation is fixed, we can finally send a BAR
at powersave wakeup time to refresh the receiver side reorder window

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-04-12 21:28:26 +03:00
Felix Fietkau
aa3cb24be1 mt76: mt7603: fix sequence number assignment
If the MT_TXD3_SN_VALID flag is not set in the tx descriptor, the hardware
assigns the sequence number. However, the rest of the code assumes that the
sequence number specified in the 802.11 header gets transmitted.
This was causing issues with the aggregation setup, which worked for the
initial one (where the sequence numbers were still close), but not for
further teardown/re-establishing of sessions.

Additionally, the overwrite of the TID sequence number in WTBL2 was resetting
the hardware assigned sequence numbers, causing them to drift further apart.

Fix this by using the software assigned sequence numbers

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-04-12 21:28:26 +03:00
Felix Fietkau
2170e2157d mt76: mt7603: add missing initialization for dev->ps_lock
Fixes lockdep complaint and a potential race condition

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-04-12 21:28:25 +03:00
Stanislaw Gruszka
7dfc45e628 mt76x02: do not enable RTS/CTS by default
My commit 26a7b54731 ("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: 26a7b54731 ("mt76x02: set protection according to ht operation element")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-03-19 17:37:25 +02:00
Lorenzo Bianconi
13f61dfc52 mt76: fix schedule while atomic in mt76x02_reset_state
Fix following schedule while atomic in mt76x02_reset_state
since synchronize_rcu is run inside a RCU section

[44036.944222] mt76x2e 0000:06:00.0: MCU message 31 (seq 3) timed out
[44036.944281] BUG: sleeping function called from invalid context at kernel/rcu/tree_exp.h:818
[44036.944284] in_atomic(): 1, irqs_disabled(): 0, pid: 28066, name: kworker/u4:1
[44036.944287] INFO: lockdep is turned off.
[44036.944292] CPU: 1 PID: 28066 Comm: kworker/u4:1 Tainted: G        W         5.0.0-rc7-wdn-t1+ #7
[44036.944294] Hardware name: Dell Inc. Studio XPS 1340/0K183D, BIOS A11 09/08/2009
[44036.944305] Workqueue: phy1 mt76x02_wdt_work [mt76x02_lib]
[44036.944308] Call Trace:
[44036.944317]  dump_stack+0x67/0x90
[44036.944322]  ___might_sleep.cold.88+0x9f/0xaf
[44036.944327]  rcu_blocking_is_gp+0x13/0x50
[44036.944330]  synchronize_rcu+0x17/0x80
[44036.944337]  mt76_sta_state+0x138/0x1d0 [mt76]
[44036.944349]  mt76x02_wdt_work+0x1c9/0x610 [mt76x02_lib]
[44036.944355]  process_one_work+0x2a5/0x620
[44036.944361]  worker_thread+0x35/0x3e0
[44036.944368]  kthread+0x11c/0x140
[44036.944376]  ret_from_fork+0x3a/0x50
[44036.944384] BUG: scheduling while atomic: kworker/u4:1/28066/0x00000002
[44036.944387] INFO: lockdep is turned off.
[44036.944389] Modules linked in: cmac ctr ccm af_packet snd_hda_codec_hdmi

Introduce __mt76_sta_remove in order to run sta_remove without holding dev->mutex.
Move __mt76_sta_remove outside of RCU section in mt76x02_reset_state

Fixes: e4ebb8b403d1 ("mt76: mt76x2: implement full device restart on watchdog reset")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-03-19 17:36:41 +02:00
Felix Fietkau
f2a00a821a mt76: mt7603: use the correct hweight8() function
__sw_hweight8() is only defined if CONFIG_GENERIC_HWEIGHT is enabled.
The function that works on all architectures is hweight8().

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-03-19 17:35:37 +02:00
Stanislaw Gruszka
40b941611b 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 <xose.vazquez@gmail.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-03-19 17:33:33 +02:00
Stanislaw Gruszka
c031647068 mt7601u: check chip version on probe
Since some USB device IDs are duplicated between mt7601u and mt76x0u
devices, check chip version on probe and return error if not match
0x7601.

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 mt7601u device.

Reported-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-03-19 17:31:03 +02:00
Lorenzo Bianconi
411e05f4e8 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: 62a25dc569 ("mt76x2u: Add support for Alfa AWUS036ACM")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-03-07 12:55:30 +01:00
Wei Yongjun
7c1b998d34 mt76: fix return value check in mt76_wmac_probe()
In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().

Fixes: c8846e1015 ("mt76: add driver for MT7603E and MT7628/7688")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-03-07 12:50:23 +01:00
Felix Fietkau
b126c88974 mt76: mt7603: set moredata flag when queueing ps-filtered packets
Clients should poll for more packets afterwards

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-03-07 12:50:23 +01:00
Felix Fietkau
643749d4a8 mt76: mt76x02: disable ED/CCA by default
This feature has been reported to cause stability issues on several systems.
Disable it until it has been fixed and verified. It can still be enabled
through debugfs

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-03-07 12:50:23 +01:00
Felix Fietkau
ffc9a7ff59 mt76: when releasing PS frames, end the service period if no frame was found
Fixes a rare corner case if the txq dequeue attempt fails, but mac80211
still has PS buffered packets

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-03-07 12:50:23 +01:00
Felix Fietkau
b7001f4608 mt76: mt7603: clear the service period on releasing PS filtered packets
These packets have no txwi entry in the ring, so tracking via tx status does
not work. To prevent PS poll requests from being unanswered, end the service
period right away

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-03-07 12:50:23 +01:00
Felix Fietkau
e004b70066 mt76: mt7603: notify mac80211 about buffered frames in ps queue
Also fix the size check for filtered powersave frames
Fixes a corner case with waking up clients

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-03-07 12:50:23 +01:00
Felix Fietkau
fca9615f1a mt76: mt7603: fix up hardware queue index for PS filtered packets
Make the queue index match the hardware queue on which they get sent out

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-03-07 12:50:23 +01:00
Felix Fietkau
f25e813bf4 mt76: mt7603: clear ps filtering mode before releasing buffered frames
Fixes sending them, otherwise they loop back right into the buffer

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-03-07 12:50:23 +01:00
Felix Fietkau
b8cfd87ac2 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 <nbd@nbd.name>
2019-03-07 12:50:23 +01:00
Felix Fietkau
45a042e302 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 <nbd@nbd.name>
2019-03-07 12:50:23 +01:00
Felix Fietkau
7635276989 mt76: mt7603: fix tx status HT rate validation
Use the correct variable in the check. Fixes an uninitialized variable warning

Reported-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Fixes: c8846e1015 ("mt76: add driver for MT7603E and MT7628/7688")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-03-07 12:50:23 +01:00
Felix Fietkau
a0ac806109 mt76: mt76x02: reduce false positives in ED/CCA tx blocking
Full tx blocking (as opposed to CCA blocking) should only happen if there
is a continuous non-802.11 signal above the energy detect threshold.
Unfortunately the ED/CCA counter can't detect that, as it also counts 802.11
signals as busy.

Similar to the vendor code, implement a learning mode that waits until the AGC
gain has already been adjusted to the lowest value (due to false CCA events),
and the number of false CCA events still remains high, and the blocking
threshold is exceeded for more than 5 seconds.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-03-07 12:50:23 +01:00
Felix Fietkau
3fd0824a2f mt76: mt76x02: only update the base mac address if necessary
Also update the mask first before calculating the vif index.
Fixes an issue where adding back the same interfaces in a different order
fails because of duplicate vif index use

Fixes: 06662264ce ("mt76x02: use mask for vifs")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-03-07 12:50:23 +01:00
Stanislaw Gruszka
7b25d3b8e4 mt76x02: fix hdr pointer in write txwi for USB
Since we add txwi at the begining of skb->data, it no longer point
to ieee80211_hdr. This breaks settings TS bit for probe response and
beacons.

Acked-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-03-07 12:50:23 +01:00
Felix Fietkau
004960423f 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 <nbd@nbd.name>
2019-03-07 12:50:23 +01:00
Felix Fietkau
de3c2af15f mt76: mt76x02: when setting a key, use PN from mac80211
Preparation for full device restart support

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-03-07 12:50:23 +01:00
Felix Fietkau
fc78010217 mt76: rewrite dma descriptor base and ring size on queue reset
Useful in case the hardware reset clobbers these values

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-03-07 12:50:23 +01:00
Lorenzo Bianconi
cd44bc40a1 mt76: introduce q->stopped parameter
Introduce mt76_queue stopped parameter in order to run
ieee80211_wake_queue only when mac80211 queues have been
previously stopped and avoid to disable interrupts when
it is not necessary

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-03-07 12:50:23 +01:00
Wen Yang
34e022d8b7 mt76: fix a leaked reference by adding a missing of_node_put
The call to of_find_node_by_phandle returns a node pointer with refcount
incremented thus it must be explicitly decremented after the last
usage.

Detected by coccinelle with the following warnings:
./drivers/net/wireless/mediatek/mt76/eeprom.c:58:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 48, but without a corresponding object release within this function.
./drivers/net/wireless/mediatek/mt76/eeprom.c:61:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 48, but without a corresponding object release within this function.
./drivers/net/wireless/mediatek/mt76/eeprom.c:67:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 48, but without a corresponding object release within this function.
./drivers/net/wireless/mediatek/mt76/eeprom.c:70:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 48, but without a corresponding object release within this function.
./drivers/net/wireless/mediatek/mt76/eeprom.c:72:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 48, but without a corresponding object release within this function.

Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Cc: Felix Fietkau <nbd@nbd.name>
Cc: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-02-28 10:38:44 +02:00
Felix Fietkau
c8846e1015 mt76: add driver for MT7603E and MT7628/7688
This driver is for a newer generation of 2x2 MediaTek 802.11n chipsets.
MT7603E is a PCIe chip.
MT7628 and MT7688 are MIPS SoC devices with built-in WLAN.
MT7688 is limited to 1x1

This driver fully supports AP, station, mesh, ad-hoc and monitor mode.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:29:56 +01:00
Felix Fietkau
9c193de548 mt76: add driver callback for when a sta is associated
MT7603 needs this to update the HT/VHT capabilities

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:29:56 +01:00
Lorenzo Bianconi
6cad8240a5 mt76: remove no longer used routine declarations
Remove following routine declarations that are no longer used
after commit cfca5f693c5d ("mt76usb: remove usb_mcu.c"):

- mt76u_mcu_complete_urb
- mt76u_deinit
- mt76u_buf_free
- mt76u_submit_urb

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:29:56 +01:00
Lorenzo Bianconi
200abe6a96 mt76: usb: check urb->num_sgs limit in mt76u_process_rx_entry
check nsgs value is less than urb->num_sgs in mt76u_process_rx_entry
in order to avoid an out-of-bound access of urb->sg array

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:29:56 +01:00
Lorenzo Bianconi
04eb16fc70 mt76: usb: simplify mt76u_tx_build_sg routine
Use skb_to_sgvec instad of skb_to_sgvec_nomark in mt76u_tx_build_sg.
Remove nsgs check in mt76u_tx_build_sg since it is already performed
by skb_to_sgvec

Suggested-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:25:18 +01:00
Lorenzo Bianconi
888199b892 mt76: usb: simplify rx buffer allocation
Squash mt76u_buf_alloc_sg and mt76u_buf_alloc and remove duplicated
code. Reuse mt76u_refill_rx in mt76u_buf_alloc

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:25:18 +01:00
Lorenzo Bianconi
4de92bf10c mt76: usb: introduce mt76u_fill_bulk_urb routine
Add mt76u_fill_bulk_urb to initialize tx/rx urbs and
remove duplicate code

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:25:18 +01:00
Lorenzo Bianconi
cb1847cce0 mt76: usb: fix warning in mt76u_buf_free
Fix following static checker warning in mt76u_buf_free:
  drivers/net/wireless/mediatek/mt76/usb.c:372 mt76u_buf_free()
  warn: address of 'urb->sg[i]' is non-NULL

There is no need to check sg page pointer since urb->num_sgs
has been already validated in mt76u_fill_rx_sg

Fixes: cb83585e11 ("mt76: usb: fix possible memory leak in mt76u_buf_free")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:25:18 +01:00
Stanislaw Gruszka
fc994dbbd9 mt76usb: remove usb_mcu.c
Don't need separate file just for kmalloc/kfree.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:25:18 +01:00
Stanislaw Gruszka
a18a494f90 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 <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:25:18 +01:00
Stanislaw Gruszka
b63aa031b0 mt76usb: allow mt76u_bulk_msg be used for reads
Extend mt76u_bulk_msg() such it can be used for synchronous bulk reads.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:25:18 +01:00
Felix Fietkau
5c8b0a3312 mt76: mt76x02: set MT_TXOP_HLDR_TX40M_BLK_EN for mt76x2
It needs to be always enabled for 76x2 and conditionally enabled/disabled
for 76x0. Since mt76x2_mac_stop clears this bit, ensure that it is enabled
in mt76x02_edcca_init

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 10:28:19 +01:00
Felix Fietkau
2858f60a16 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 <nbd@nbd.name>
2019-02-26 10:28:19 +01:00
Felix Fietkau
4606a26c0c 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 <nbd@nbd.name>
2019-02-26 10:28:19 +01:00
Felix Fietkau
72e5d479b8 mt76: mt76x02: issue watchdog reset on MCU request timeout
MCU request timeout usually indicates that the device is no longer responsive,
and it usually does not recover without a reset

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 10:28:19 +01:00
Felix Fietkau
90f42f2d76 mt76: mt76x02: only reset beacon drift counter when enabling beacons
When the timer is already running, there is no need to reset the counter,
because the drift will remain the same.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 10:28:19 +01:00
Felix Fietkau
ed55c9b9c1 mt76: mt76x02: fix beacon timer issue
When mt76x0 and mt76x2 beacon code was unified, it changed the order in which
beacon enable and beacon interval are configured.
Configuring beacon enable before beacon interval can in some cases cause
problems with the beacon timer, leading to clients not waking up properly
from powersave mode.
Fix this by changing the order back to interval first, then enable.

Fixes: cc726268e4 ("mt76: move mt76x02_bss_info_changed in mt76x02-lib module")
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 10:28:18 +01:00
Felix Fietkau
b3f09304ba mt76: mt76x02: fix beacon timer drift adjustment
Check the count before incrementing it to match vendor code behavior.
This defers the adjustment by one more tick, which should improve accuracy

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 10:28:18 +01:00
Felix Fietkau
a6982fcdc3 mt76: mt76x02: fix TSF sync mode
MT_BEACON_TIME_CFG_SYNC_MODE needs to be set for AP mode, according to the
documentation. For other modes it should be irrelevant in this case.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 10:28:18 +01:00
Felix Fietkau
9f68847340 mt76: mt76x2: simplify per-chain signal strength handling
There is no need to use a for loop here, supported chips can only support
up to 2 chains.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 20:41:50 +01:00
Felix Fietkau
f2f6a47b50 mt76: fix resetting software IV flag on key delete
It needs to be unset instead of set

Fixes: 2340523646 ("mt76: fix transmission of encrypted management frames")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 20:27:52 +01:00
Felix Fietkau
906d2d3f87 mt76: fix corrupted software generated tx CCMP PN
Since ccmp_pn is u8 *, the second half needs to start at array index 4
instead of 0. Fixes a connection stall after a certain amount of traffic

Fixes: 2340523646 ("mt76: fix transmission of encrypted management frames")
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 20:27:52 +01:00
Felix Fietkau
b231cd7f55 mt76: fix tx status timeout processing
Remove bogus check for MT_PACKET_ID_NO_ACK in mt76_tx_status_skb_get, which
is already handled in callers and turns timeout calls into no-ops
Do not clean up pending status items on reordering of tx status information
if the timeout is not reached yet

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 20:23:46 +01:00
Ben Hutchings
d0ff23c110 mt76: Use the correct hweight8() function
mt76_init_stream_cap() and mt76_get_txpower() call __sw_hweight8()
directly, but that's only defined if CONFIG_GENERIC_HWEIGHT is
enabled.  The function that works on all architectures is hweight8().

Fixes: 551e1ef4d2 ("mt76: add mt76_init_stream_cap routine")
Fixes: 9313faacbb ("mt76: move mt76x02_get_txpower to mt76 core")
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 20:10:28 +01:00
Stanislaw Gruszka
3eeb7c062d mt76x02u: remove bogus check and comment padding
In mt76x02u_skb_dma_info() pad is always non-zero. Patch removes
bogus check and add comments to the function.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 20:03:22 +01:00
Lorenzo Bianconi
4bfff1ec25 mt76: usb: use dev_err_ratelimited instead of dev_err in mt76u_complete_rx
During device removal the driver can report multiple error messages.
Use dev_err_ratelimited instead of dev_err to display urb errors

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 20:01:59 +01:00
Lorenzo Bianconi
c2908a0dfd mt76: usb: introduce disable_usb_sg parameter
Add disable_usb_sg module parameter to disable scatter-gather on demand

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:55:55 +01:00
Lorenzo Bianconi
f752294946 mt76: usb: use a linear buffer for tx/rx datapath if sg is not supported
Use linear fragment and not a single usb scatter-gather buffer in mt76u
{tx,rx} datapath if the usb controller has sg data length constraints

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:55:54 +01:00
Lorenzo Bianconi
d704d16f20 mt76: usb: do not use sg buffers for mcu messages
Do not use scatter-gather buffers for mcu commands.
Introduce mt76u_buf_alloc and mt76u_buf_alloc_sg routines.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:55:53 +01:00
Lorenzo Bianconi
63a7de5dfb 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 <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:55:52 +01:00
Lorenzo Bianconi
b3098121c4 mt76: usb: do not run mt76u_queues_deinit twice
Do not call mt76u_queues_deinit routine in mt76u_alloc_queues error path
since it will be run in mt76x0u_register_device or
mt76x2u_register_device error path. Current implementation triggers the
following kernel warning:

[   67.005516] WARNING: CPU: 2 PID: 761 at lib/refcount.c:187 refcount_sub_and_test_checked+0xa4/0xb8
[   67.019513] refcount_t: underflow; use-after-free.
[   67.099872] Hardware name: BCM2835
[   67.106268] Backtrace:
[   67.111584] [<8010c91c>] (dump_backtrace) from [<8010cc00>] (show_stack+0x20/0x24)
[   67.124974]  r6:60000013 r5:ffffffff r4:00000000 r3:a50bade6
[   67.132226] [<8010cbe0>] (show_stack) from [<807ca5f4>] (dump_stack+0xc8/0x114)
[   67.141225] [<807ca52c>] (dump_stack) from [<8011e65c>] (__warn+0xf4/0x120)
[   67.149849]  r9:000000bb r8:804d0138 r7:00000009 r6:8099dc84 r5:00000000 r4:b66c7b58
[   67.160767] [<8011e568>] (__warn) from [<8011e6d0>] (warn_slowpath_fmt+0x48/0x50)
[   67.171436]  r9:7f65e128 r8:80d1419c r7:80c0bac4 r6:b97b3044 r5:b7368e00 r4:00000000
[   67.182433] [<8011e68c>] (warn_slowpath_fmt) from [<804d0138>] (refcount_sub_and_test_checked+0xa4/0xb8)
[   67.195221]  r3:80c91c25 r2:8099dc94
[   67.200370]  r4:00000000
[   67.204397] [<804d0094>] (refcount_sub_and_test_checked) from [<804d0164>] (refcount_dec_and_test_checked+0x18/0x1c)
[   67.218046]  r4:b7368e00 r3:00000001
[   67.223125] [<804d014c>] (refcount_dec_and_test_checked) from [<805db49c>] (usb_free_urb+0x20/0x4c)
[   67.235358] [<805db47c>] (usb_free_urb) from [<7f639804>] (mt76u_buf_free+0x98/0xac [mt76_usb])
[   67.247302]  r4:00000001 r3:00000001
[   67.252468] [<7f63976c>] (mt76u_buf_free [mt76_usb]) from [<7f639ef8>] (mt76u_queues_deinit+0x44/0x100 [mt76_usb])
[   67.266102]  r8:b8fe8600 r7:b5dac480 r6:b5dace20 r5:00000001 r4:00000000 r3:00000080
[   67.277132] [<7f639eb4>] (mt76u_queues_deinit [mt76_usb]) from [<7f65c040>] (mt76x0u_cleanup+0x40/0x4c [mt76x0u])
[   67.290737]  r7:b5dac480 r6:b8fe8600 r5:ffffffea r4:b5dace20
[   67.298069] [<7f65c000>] (mt76x0u_cleanup [mt76x0u]) from [<7f65c564>] (mt76x0u_probe+0x1f0/0x354 [mt76x0u])
[   67.311174]  r4:b5dace20 r3:00000000
[   67.316312] [<7f65c374>] (mt76x0u_probe [mt76x0u]) from [<805e0b6c>] (usb_probe_interface+0x104/0x240)
[   67.328915]  r7:00000000 r6:7f65e034 r5:b6634800 r4:b8fe8620
[   67.336276] [<805e0a68>] (usb_probe_interface) from [<8056a8bc>] (really_probe+0x224/0x2f8)
[   67.347965]  r10:b65f0a00 r9:00000019 r8:7f65e034 r7:80d3e124 r6:00000000 r5:80d3e120
[   67.359175]  r4:b8fe8620 r3:805e0a68
[   67.364384] [<8056a698>] (really_probe) from [<8056ab60>] (driver_probe_device+0x6c/0x180)
[   67.375974]  r10:b65f0a00 r9:7f65e2c0 r8:b8fe8620 r7:00000000 r6:7f65e034 r5:7f65e034
[   67.387170]  r4:b8fe8620 r3:00000000
[   67.392378] [<8056aaf4>] (driver_probe_device) from [<8056ad54>] (__driver_attach+0xe0/0xe4)
[   67.404097]  r9:7f65e2c0 r8:7f65d22c r7:00000000 r6:b8fe8654 r5:7f65e034 r4:b8fe8620
[   67.415122] [<8056ac74>] (__driver_attach) from [<8056880c>] (bus_for_each_dev+0x68/0xa0)
[   67.426628]  r6:8056ac74 r5:7f65e034 r4:00000000 r3:00000027
[   67.434017] [<805687a4>] (bus_for_each_dev) from [<8056a1cc>] (driver_attach+0x28/0x30)
[   67.445394]  r6:80c6ddc8 r5:b7368f80 r4:7f65e034
[   67.451703] [<8056a1a4>] (driver_attach) from [<80569c24>] (bus_add_driver+0x194/0x21c)
[   67.463081] [<80569a90>] (bus_add_driver) from [<8056b504>] (driver_register+0x8c/0x124)
[   67.474560]  r7:80c6ddc8 r6:7f65e034 r5:00000000 r4:7f65e034
[   67.481964] [<8056b478>] (driver_register) from [<805df510>] (usb_register_driver+0x74/0x140)
[   67.493901]  r5:00000000 r4:7f65e000
[   67.499131] [<805df49c>] (usb_register_driver) from [<7f661024>] (mt76x0_driver_init+0x24/0x1000 [mt76x0u])
[   67.512258]  r9:00000001 r8:7f65e308 r7:00000000 r6:80c08d48 r5:7f661000 r4:7f65e2c0
[   67.523404] [<7f661000>] (mt76x0_driver_init [mt76x0u]) from [<80102f6c>] (do_one_initcall+0x4c/0x210)
[   67.536142] [<80102f20>] (do_one_initcall) from [<801ae63c>] (do_init_module+0x6c/0x21c)
[   67.547639]  r8:7f65e308 r7:80c08d48 r6:b65f0ac0 r5:7f65e2c0 r4:7f65e2c0
[   67.556129] [<801ae5d0>] (do_init_module) from [<801ad68c>] (load_module+0x1d10/0x2304)

Fixes: b40b15e152 ("mt76: add usb support to mt76 layer")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:55:51 +01:00
Lorenzo Bianconi
cb83585e11 mt76: usb: fix possible memory leak in mt76u_buf_free
Move q->ndesc initialization before the for loop in mt76u_alloc_rx
since otherwise allocated urbs will not be freed in mt76u_buf_free
Double-check scatterlist pointer in mt76u_buf_free

Fixes: b40b15e152 ("mt76: add usb support to mt76 layer")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:55:50 +01:00
Lorenzo Bianconi
bdba48d57a mt76: usb: fix possible NULL pointer dereference in mt76u_mcu_deinit
Fix possible NULL pointer dereference in mt76u_mcu_deinit routine that
can occur if initialization path fails before calling mt76u_mcu_init_rx

Fixes: ee676cd501 ("mt76: add driver code for MT76x2u based devices")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:55:49 +01:00
Stanislaw Gruszka
5de4db8fcb mt76x02u: use usb_bulk_msg to upload firmware
We don't need to send firmware data asynchronously, much simpler is just
use synchronous usb_bulk_msg().

Tested-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:34 +01:00
Lorenzo Bianconi
1ffe410ee3 mt76x0: init: introduce mt76x0_init_txpower routine
Add mt76x0_init_txpower in order to initialize max_power per channel
at device bootstrap. Modify mt76x0_get_tx_power_per_rate and
mt76x0_get_power_info signature in order to compute tx power for
non-operating channels

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:34 +01:00
Lorenzo Bianconi
0bee1ff692 mt76x0: phy: report target_power in debugfs
Initialize target_power variable in mt76x0_phy_set_txpower in order to
report target_power in debugfs

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:34 +01:00
Ryder Lee
bceac167b0 mt76: change the return type of mt76_dma_attach()
There is no need to retun 0 in mt76_dma_attach(), so switch it to void.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:34 +01:00
Lorenzo Bianconi
ecd25b547d 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 <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:34 +01:00
Lorenzo Bianconi
fa2355265c mt76x0: remove mt76x0u_alloc_device routine
Remove mt76x0u_alloc_device since it just runs mt76_alloc_device.
Move mt76_alloc_device call in mt76x0u_probe and in mt76x0e_probe

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:34 +01:00
Lorenzo Bianconi
3bfaa974de 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 <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:34 +01:00
Lorenzo Bianconi
c0f7b25ab8 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 <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:34 +01:00
Felix Fietkau
f1906fb249 mt76: increase ED/CCA tx block threshold
Block only when the busy time reaches 92%, as lower values can be reached with
heavy 802.11 traffic as well.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:34 +01:00
Felix Fietkau
ccdaf7b4f2 mt76: measure the time between mt76x02_edcca_check runs
Based on system load and time needed by other calibration runs, the time
between dev->mac_work runs can vary quite a bit.
Calculate busy time based on the actual time difference in order to avoid
potentially over-estimating busy time, which could lead to unnecessary tx
blocking.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:33 +01:00
Felix Fietkau
c15b7cef2a mt76: clear CCA timer stats in mt76x02_edcca_init
Avoid triggering too early

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:33 +01:00
Felix Fietkau
2e4050240a 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 <nbd@nbd.name>
2019-02-18 19:54:33 +01:00
Felix Fietkau
20c06572c1 mt76: explicitly disable energy detect cca during scan
Avoid reusing the previous channel's tx blocking state

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:33 +01:00
Felix Fietkau
1564fa92fb mt76: mt76x2: avoid running DPD calibration if tx is blocked
Doing so could lead to hangs

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:33 +01:00
Felix Fietkau
128b75bf5c mt76: fix software encryption issues
Software encrypted packets can be passed not just through the drv_tx callback,
but also through the intermediate tx queue.
In order to deal with that, move the override to mt76x02_mac_write_txwi and
also take care of filling in the per-packet rate information

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:33 +01:00
Lorenzo Bianconi
e6287c337c mt76: remove add_buf pointer in mt76_queue_ops
Remove add_buf function pointer in mt76_queue_ops data structure since
it is no longer used

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:33 +01:00
Lorenzo Bianconi
5ed3112878 mt76: move mt76_dma_tx_queue_skb_raw in mt76-core module
Move mt76_dma_tx_queue_skb_raw routine in dma.c and add the
corresponding entry in mt76_queue_ops data structure.
mt76_dma_tx_queue_skb_raw  will be reused adding support for
mt7603 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:33 +01:00
Lorenzo Bianconi
6f02aeabc9 mt76x0: mcu: remove useless commented configuration
Remove useless commented out configuration in mt76x0u_load_firmware
routine

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:33 +01:00
Lorenzo Bianconi
c07a49d475 mt76: move mt76_mcu_rx_event in mt76-core
Move mt76_mcu_rx_event i mt76-core module and remove duplicated code.
mt76_mcu_rx_event will be reused adding support for mt7603 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:33 +01:00
Lorenzo Bianconi
680abb25f7 mt76: move mt76_mcu_get_response in mt76-core
Move mt76_mcu_get_response in mt76-core module and remove duplicated
code. mt76_mcu_get_response will be reused adding support for mt7603
driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:33 +01:00
Lorenzo Bianconi
9df0fab9d1 mt76: move mt76_mcu_msg_alloc in mt76-core
Move mt76_mcu_msg_alloc in mt76-core module and remove duplicated code.
mt76_mcu_msg_alloc will be reused adding support for mt7603 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:33 +01:00
Lorenzo Bianconi
b29e46b765 mt76x0: eeprom: fix VHT mcs{8,9} rate power offset
Fix rate power configuration for VHT mcs 8 and 9 in
mt76x0_get_tx_power_per_rate. Moreover use the rate power
offset used for HT/VHT mcs 6 even for HT/VHT mcs 7

Fixes: b37bbc8c82 ("mt76x0: remove eeprom dependency from mt76x0_set_tx_power_per_rate")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:33 +01:00
Stanislaw Gruszka
2bd7f3d2a9 mt76x02: enable support for IBSS and MESH
Since we implement beconing on USB now, similar interfaces should be
supported for USB as are for MMIO. Tested only on IBSS mode and
AP mode (not enabled due to lack of PS buffering).

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:32 +01:00
Stanislaw Gruszka
dbb2b22b11 mt76: beaconing fixes for USB
Configure beaconing on USB devices without PS buffering support.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:32 +01:00
Stanislaw Gruszka
b08ca4dc95 mt76x02: init beacon config for mt76x2u
Initialize beaconing also on mt76x2u.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:32 +01:00
Stanislaw Gruszka
39834c1293 mt76x02: minor beaconing init changes
Disable BEACON timer during init and configure interrupt registers
only for mmio devices.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:32 +01:00
Stanislaw Gruszka
0b2d27e5b8 mt76x02: initialize mutli bss mode when set up address
BSSID is not strtirct related with beaconing (for example we can have
2 STA vifs) and more related with MAC address, so initaize BSSID when
setting MAC address.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:32 +01:00
Stanislaw Gruszka
f9a043c582 mt76x02: use commmon add interface for mt76x2u
Since we now support mt76x2u feature to allow set mac address
when creating interface in common code we can use it for
mt76x2u.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:32 +01:00
Stanislaw Gruszka
06662264ce mt76x02: use mask for vifs
Use vif_mask to count interfaces to allow to set mac address in HW
if there is only one interface and report error if we create
interface with wrong BSSID resulting in already used index.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18 19:54:32 +01:00
Kalle Valo
6ecde4936b Merge git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers.git
The series "[PATCH 0/2] mt76x0: initialize per-channel max_power" depends on
commit d04ca38386 ("mt76x0u: fix suspend/resume"), so merge wireless-drivers
into wireless-drivers-next to get that.
2019-02-08 14:14:35 +02:00
Stanislaw Gruszka
d04ca38386 mt76x0u: fix suspend/resume
We need to reset MCU and do other initializations on resume otherwise
MT7610U device will fail to initialize, what cause system hung due to
USB requests timeouts.

Patch fixes 4.19 -> 4.20 regression.

Cc: stable@vger.kernel.org # 4.20+
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-02-07 18:32:16 +02:00
Lorenzo Bianconi
b6958ad021 mt7601u: do not use WARN_ON in the datapath
Substitute WARN_ON with WARN_ON_ONCE in mt7601u_rx_next_seg_len
routine

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-02-01 14:41:19 +02:00
Stanislaw Gruszka
3bd1505fed mt7601u: bump supported EEPROM version
As reported by Michael eeprom 0d is supported and work with the driver.

Dump of /sys/kernel/debug/ieee80211/phy1/mt7601u/eeprom_param
with 0d EEPORM looks like this:

RSSI offset: 0 0
Reference temp: f9
LNA gain: 8
Reg channels: 1-14
Per rate power:
	 raw:05 bw20:05 bw40:05
	 raw:05 bw20:05 bw40:05
	 raw:03 bw20:03 bw40:03
	 raw:03 bw20:03 bw40:03
	 raw:04 bw20:04 bw40:04
	 raw:00 bw20:00 bw40:00
	 raw:00 bw20:00 bw40:00
	 raw:00 bw20:00 bw40:00
	 raw:02 bw20:02 bw40:02
	 raw:00 bw20:00 bw40:00
Per channel power:
	 tx_power  ch1:09 ch2:09
	 tx_power  ch3:0a ch4:0a
	 tx_power  ch5:0a ch6:0a
	 tx_power  ch7:0b ch8:0b
	 tx_power  ch9:0b ch10:0b
	 tx_power  ch11:0b ch12:0b
	 tx_power  ch13:0b ch14:0b

Reported-and-tested-by: Michael <ZeroBeat@gmx.de>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-02-01 14:28:22 +02:00
Lorenzo Bianconi
05672636b3 mt76x0: eeprom: fix chan_vs_power map in mt76x0_get_power_info
Report correct eeprom per channel power value.
Fix chan_vs_power map in mt76x0_get_power_info routine

Fixes: f2a2e819d6 ("mt76x0: remove eeprom dependency from mt76x0_get_power_info")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-01-31 18:56:11 +02:00
Felix Fietkau
d225581df3 mt76: avoid scheduling tx queues for powersave stations
In case a tx queue wake call arrives after a client has transitioned to
powersave, make sure that the queue is not kept active until the client
has left powersave mode

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-22 16:37:35 +01:00
Felix Fietkau
68f7030f2d mt76: fix per-chain signal strength reporting
Fix an off-by-one error that resulted in not reporting the signal strength
for the first chain

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-22 16:37:28 +01:00
Lorenzo Bianconi
f832898dff mt76: do not report out-of-range rx nss
Take into account device rx stream in mt76x02_mac_process_rate
in order to not report wrong number of rx spatial stream to mac80211.
The issue has been reported on mt76x0 device which is 1x1:1 however
the hw sometimes reports rx nss equal to 2

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-21 21:47:58 +01:00
Felix Fietkau
e7173858c7 mt76: add channel switch announcement support
Use the appropriate mac80211 callbacks after beacon transmission

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-17 14:50:15 +01:00
Felix Fietkau
9cf67ec7fd mt76: fix signedness of rx status signal field
It is usually negative, so it needs to be signed.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-17 14:50:15 +01:00
Felix Fietkau
02e5a769c0 mt76: fix rssi ewma tracking
The generic EWMA code cannot deal with negative numbers, so convert signal
to a positive number before adding it
Fixes mt76x2 AGC tuning

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-17 14:50:15 +01:00
Felix Fietkau
ef13edc007 mt76: move mt76x02_phy_get_min_avg_rssi to mt76 core
This will be used by mt7603 as well

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-17 14:50:15 +01:00
Felix Fietkau
9313faacbb mt76: move mt76x02_get_txpower to mt76 core
It will be reused by mt7603 later

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-17 14:50:15 +01:00
Felix Fietkau
f545540d5f mt76: set IEEE80211_HW_NEEDS_UNIQUE_STA_ADDR flag
The hardware does not deal with multiple WCID entries for the same station
properly. Set IEEE80211_HW_NEEDS_UNIQUE_STA_ADDR to avoid those cases

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-17 14:45:55 +01:00
Felix Fietkau
013b2dff81 mt76: fix tx status reporting for non-probing frames
On MT76x2, the hardware does not report tx status in the FIFO register,
if the packet id is 0.
Change the allocation of packet IDs to use 0 for no-ack packets, 1 for
non-probing packets and 2-255 for packets with tx status requested.
Fixes rate control issues

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-17 14:44:57 +01:00
Lorenzo Bianconi
5c9decdfbb mt76: add led support to mt76x0e driver
Move mt76x02 led support in mt76x02-lib module in order to
add tpt led trigger to mt76x0e driver

Tested-by: LGA1150 <dqfext@gmail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:19 +01:00
Lorenzo Bianconi
3121742915 mt76: use proper name for __MT76x02_H macro
Use proper name for __MT76x02_H macro in mt76x02.h

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:19 +01:00
Lorenzo Bianconi
e76deac6f0 mt76: dma: avoid indirect call in mt76_dma_tx_queue_skb
Call mt76_dma_add_buf routine directly in mt76_dma_tx_queue_skb
and avoid indirect call if not necessary

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:19 +01:00
Colin Ian King
32fb47fd9c mt76: make const array 'data' static, shrinks object size
Don't populate the const array 'data' on the stack but instead
make it static. Makes the object code smaller by 78 bytes:

Before:
   text    data     bss     dec     hex filename
   5438    1080       0    6518    1976 mediatek/mt76/mt76x2/usb_mcu.o

After:
   text    data     bss     dec     hex filename
   5296    1144       0    6440    1928 mediatek/mt76/mt76x2/usb_mcu.o

(gcc version 8.2.0 x86_64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:19 +01:00
Lorenzo Bianconi
c1e0d2be0a mt76: mmio: introduce mt76x02_check_tx_hang watchdog
Port mt76x02_check_tx_hang watchdog from vendor driver in order to
perform a device reset when tx mac/dma logic hangs. Tx mac/dma stuck
has been observed when the device is heavy loaded or in a noisy
environment. Moreover introduce wdt delayed work in order to run
tx_hang watchdog. For the moment run mt76x02_check_tx_hang watchdog
just on mt76x2 devices since the issue has not been observed on mt76x0
driver yet

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:19 +01:00
Lorenzo Bianconi
87e86f9019 mt76: dma: do not build skb if reported len does not fit in buf_size
Precompute data length in order to avoid to allocate the related
skb data structure if reported length does not fit in queue buf_size

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:18 +01:00
Lorenzo Bianconi
c09f4d0a1f mt76: mac: minor optimizations in mt76x02_mac_tx_rate_val
Do not set bw variable to zero for legacy rates since it is already
initialized to zero. Moreover set nss to 1 just for legacy rates
since nss will be properly set for VHT/HT rates

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:18 +01:00
Lorenzo Bianconi
f82ce8d9bd mt76: add energy detect CCA support to mt76x{0,2}e drivers
Ported from the reference driver. Should fix compliance with ETSI
regulatories on preventing transmission while energy detect values
are above the threshold.
The code has been tested using an ath9k device running tx99 as
noise generator

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:18 +01:00
Lorenzo Bianconi
3fd612df8a mt76x2: init: set default value for MT_TX_LINK_CFG
Update default value for MT_TX_LINK_CFG according to vendor driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:18 +01:00
Lorenzo Bianconi
35c572818c mt76: dfs: run mt76x02_dfs_set_domain atomically
Grab mt76_dev mutex in mt76x02_dfs_set_domain since it runs
concurrently with mt76x{0,2}_set_channel routines

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:17 +01:00
Lorenzo Bianconi
bf349ce16e mt76x2: add static qualifier to mt76x2_init_hardware
Add static qualifier to mt76x2_init_hardware routine since it is
used just in pci_init.c

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:17 +01:00
Stanislaw Gruszka
9bc29420d7 mt76x0: configure MT_VHT_HT_FBK_CFG1
Configure MT_VHT_HT_FBK_CFG1 values similar like vendor driver.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:17 +01:00
Stanislaw Gruszka
26a7b54731 mt76x02: set protection according to ht operation element
Configure protection based on information that are provided to
us either by remote AP or by hostapd via HT operation IE.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:17 +01:00
Stanislaw Gruszka
493d2dfab3 mt76x02: fixup MT_PROT_RATE_* defines
On new mt76 chips, phy mode is configured by last 3 bits
of rate value. Hence OFDM bit is marked by 0x2000
instead of 0x4000.

Acked-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:17 +01:00
Stanislaw Gruszka
20ce270e5a mt76x02: do not set protection on set_rts_threshold callback
Use set_rts_threshold calback to enable/disable threshold only for
legacy traffic.

Protection for HT and VHT traffic is defined by HT operation element
and it's provided by remote AP or by hostapd.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:16 +01:00
Lorenzo Bianconi
b9f81643b6 mt76x0: pci: fix ACS support
Fix Automatic Channel Selection (ACS) support in mt76x0e driver
configuring properly MT_CH_TIME_CFG register

Fixes: 6250318694 ("mt76x0: pci: add get_survey support")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:16 +01:00
Lorenzo Bianconi
e207afa023 mt76: usb: avoid queue/status spinlocks while passing tx status to mac80211
As already done for pcie code in commit 79d1c94c9c ("mt76: avoid
queue/status spinlocks while passing tx status to mac80211") make sure
that no tx related spinlocks are taken during the ieee80211_tx_status call

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:16 +01:00
Lorenzo Bianconi
4989338ed3 mt76: mac: run mt76x02_mac_work routine atomically
Grab mt76_dev mutex in mt76x02_mac_work handler since it runs
concurrently with mt76x{0,2}_set_channel routines

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:16 +01:00
Lorenzo Bianconi
374eb1b555 mt76: fix typo in mt76x02_check_mac_err routine
Reconfigure properly MT_MAC_SYS_CTRL register after mac sw-reset
in mt76x02_check_mac_err routine

Fixes: 73556561ab ("mt76x0: use mt76x02_mac_work as stats handler")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:16 +01:00
Hauke Mehrtens
85b7e2acd3 mt76: Add missing include of linux/module.h
MODULE_FIRMWARE() is used in usb_mcu.c and provided by linux/module.h,
but this header file is not directly included. This causes problems in
backports with some kernel versions.

Add the missing include.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:15 +01:00
Lorenzo Bianconi
0ecf94dc36 mt76: usb: do not build the skb if reported len does not fit in buf_size
Precompute data length in order to avoid to allocate the related
skb data structure if reported length does not fit in queue buf_size

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:15 +01:00
Lorenzo Bianconi
4d4b12bc56 mt76: dma: remove napi from mt76_dma_rx_fill signature
Remove napi from mt76_dma_rx_fill routine signature since
it is a leftover of a previous implementation and it is no
longer used

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:15 +01:00
Felix Fietkau
7267a7965d mt76: request tx status for powersave released EOSP packet
Allows mac80211 to keep track of the service period

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:15 +01:00
Felix Fietkau
cbbfd73767 mt76: throttle transmission of buffered multicast packets
Avoids drowning out regular transmissions

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:14 +01:00
Felix Fietkau
9fe3105465 mt76: add size check for additional rx fragments
So far the code only validates the buffer size of the first skb.
Extend this check to cover additional fragments as well, in case the size
is corrupted during a DMA reset.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-11 15:10:14 +01:00
David S. Miller
e69fbf31ca wireless-drivers-next patches for 4.21
Last set of patches for 4.21. mt76 is still in very active development
 and having some refactoring as well as new features. But also other
 drivers got few new features and fixes.
 
 Major changes:
 
 ath10k
 
 * add amsdu support for QCA6174 monitor mode
 
 * report tx rate using the new ieee80211_tx_rate_update() API
 
 * wcn3990 support is not experimental anymore
 
 iwlwifi
 
 * support for FW version 43 for 9000 and 22000 series
 
 brcmfmac
 
 * add support for CYW43012 SDIO chipset
 
 * add the raw 4354 PCIe device ID for unprogrammed Cypress boards
 
 mwifiex
 
 * add NL80211_STA_INFO_RX_BITRATE support
 
 mt76
 
 * use the same firmware for mt76x2e and mt76x2u
 
 * mt76x0e survey support
 
 * more unification between mt76x2 and mt76x0
 
 * mt76x0e AP mode support
 
 * mt76x0e DFS support
 
 * rework and fix tx status handling for mt76x0 and mt76x2
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Merge tag 'wireless-drivers-next-for-davem-2018-12-20' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.21

Last set of patches for 4.21. mt76 is still in very active development
and having some refactoring as well as new features. But also other
drivers got few new features and fixes.

Major changes:

ath10k

* add amsdu support for QCA6174 monitor mode

* report tx rate using the new ieee80211_tx_rate_update() API

* wcn3990 support is not experimental anymore

iwlwifi

* support for FW version 43 for 9000 and 22000 series

brcmfmac

* add support for CYW43012 SDIO chipset

* add the raw 4354 PCIe device ID for unprogrammed Cypress boards

mwifiex

* add NL80211_STA_INFO_RX_BITRATE support

mt76

* use the same firmware for mt76x2e and mt76x2u

* mt76x0e survey support

* more unification between mt76x2 and mt76x0

* mt76x0e AP mode support

* mt76x0e DFS support

* rework and fix tx status handling for mt76x0 and mt76x2
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-20 16:47:10 -08:00
Lorenzo Bianconi
7c250f4612 mt76: fix potential NULL pointer dereference in mt76_stop_tx_queues
Starting from mac80211 commit adf8ed01e4 ("mac80211: add an optional
TXQ for other PS-buffered frames") and commit 0eeb2b674f ("mac80211:
add an option for station management TXQ") a new per-sta queue has been
introduced for bufferable management frames.
sta->txq[IEEE80211_NUM_TIDS] is initialized just if the driver reports
the following hw flags:
- IEEE80211_HW_STA_MMPDU_TXQ
- IEEE80211_HW_BUFF_MMPDU_TXQ
This can produce a NULL pointer dereference in mt76_stop_tx_queues
since mt76 iterates on all available sta tx queues assuming they are
initialized by mac80211. This issue has been spotted analyzing the code
(it has not triggered any crash yet)

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-12-13 16:19:56 +02:00
Kalle Valo
074b145a05 first batch of mt76 patches for 4.21
* use the same firmware for mt76x2e and mt76x2u
 * mt76x2 fixes
 * mt76x0 fixes
 * mt76x0e survey support
 * more unification between mt76x2 and mt76x0
 * mt76x0e AP mode support
 * mt76x0e DFS support
 * rework and fix tx status handling for mt76x0 and mt76x2
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Merge tag 'mt76-for-kvalo-2018-11-30' of https://github.com/nbd168/wireless

first batch of mt76 patches for 4.21

* use the same firmware for mt76x2e and mt76x2u
* mt76x2 fixes
* mt76x0 fixes
* mt76x0e survey support
* more unification between mt76x2 and mt76x0
* mt76x0e AP mode support
* mt76x0e DFS support
* rework and fix tx status handling for mt76x0 and mt76x2

kvalo: fixed a conflict in drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c
and a build problem in drivers/net/wireless/mediatek/mt76/mt76x02_util.c
2018-12-13 16:02:19 +02:00
Felix Fietkau
e28487ea84 mt76: replace sta_add/remove ops with common sta_state function
Allows adding unassociated stations from mac80211

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
2018-11-30 12:30:37 +01:00
Felix Fietkau
54f1bf8a9f mt76: mt76x02: remove mt76x02_txq_init
Open-coding it simplifies the code

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:29:37 +01:00
Felix Fietkau
c30bdfea80 mt76: mt76x02: make group_wcid the first member in struct mt76x02_vif
Allows mt76 core to cast vif->drv_priv to struct mt76_wcid

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:29:36 +01:00
Felix Fietkau
723b90dc7d mt76: add mt76_sta_remove helper
This allows station removal code to be used by mt7603 later

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:29:35 +01:00
Felix Fietkau
c2a1a5e136 mt76: fix race condition in station removal
If there are still pending packets in the tx queue when removing a station,
it could possibly lead to a call to further attempts to pull packets from
the mac80211 tx queue after it has already been removed from the scheduling
list.
Prevent this from happening by calling synchronize_rcu after deleting the
wcid pointer before further cleaning up the tx queues.
To be extra careful, ensure that mtxq->list is always initialized properly.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:29:34 +01:00
Felix Fietkau
13c6d5f837 mt76: do not wake tx queues during flush
While the queue is being cleaned up, the stack must not attempt to add
any extra packets

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:29:33 +01:00
Felix Fietkau
79d1c94c9c mt76: avoid queue/status spinlocks while passing tx status to mac80211
There is some code in the mac80211 tx status processing code that could
potentially call back into the tx codepath.
To avoid deadlocks, make sure that no tx related spinlocks are taken
during the ieee80211_tx_status call.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:29:32 +01:00
Stanislaw Gruszka
4ece1e0a86 mt76: remove wait argument from mt76x02_mcu_calibrate
We always wait for CMD_CALIBRATION_OP mcu message, but wait argument is used
for do additional MT_MCU_COM_REG0 register operations, which are needed
for mt76x2e devices and we can use appropriate check instead of wait argument.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:29:31 +01:00
Lorenzo Bianconi
93ac31680e mt76x2u: init: remove mt76x2u_init_beacon_offsets routine
Remove mt76x2u_init_beacon_offsets routine since the driver supports
just STA mode

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:29:30 +01:00
Lorenzo Bianconi
9446a928e1 mt76x2u: main: use mt76x02_bss_info_changed utility routine
Initialize bss_info_changed mac80211 callback to
mt76x02_bss_info_changed utility routine and remove duplicated code.
Use 8 as WCID index for sta interface

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:29:28 +01:00
Lorenzo Bianconi
04289783ce mt76x2u: phy: run phy_channel_calibrate after channel switch
Perform channel calibration after each channel switch and not only after
connection establishment since NetworkManager perform multiple frequency
scanning if RSSI in lower a given threshold

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:29:27 +01:00
Lorenzo Bianconi
4f833fadc9 mt76x2u: phy: add TX_SHAPING calibration
Add MCU_CAL_TX_SHAPING calibration in mt76x2u_phy_channel_calibrate
routine since now mt76x2 and mt76x2u driver run the same firmware

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:29:26 +01:00
Lorenzo Bianconi
8f2fbff574 mt76x0: pci: enable VHT rates in IBSS mode
Enable VHT tx rates in ad-hoc mode for mt76x0e driver.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:29:25 +01:00
Lorenzo Bianconi
269906ac82 mt76: introduce mt76x02_config_mac_addr_list routine
Add mt76x02_config_mac_addr_list routine in order to set
the mac address list supported by the driver. Initialize
wiphy->addresses/n_addresses for mt76x0e driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:29:24 +01:00
Lorenzo Bianconi
6bf4a8e902 mt76x0: dfs: fix IBI_R11 configuration on non-radar channels
Fix IBI_R11 configuration on non-radar channels for mt76x0e
driver. This patch improve system stability under heavy load.
Moreover use IBI_R11 name and remove magic numbers for
0x212c register

Fixes: 0c3b3abc9251 ("mt76x0: pci: add DFS support")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:43 +01:00
Stanislaw Gruszka
4784a3cc3f mt76x02: assure we update gain after scan
Assure that after we initialize dev->cal.low_gain to -1 this
will cause update gain calibration. Otherwise this might or
might not happen depending on value of second bit of low_gain
and values read from registers in mt76x02_phy_adjust_vga_gain().

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:43 +01:00
Stanislaw Gruszka
f1b8ee35fe mt76x02: run calibration after scanning
If we are associated and scanning is performed, sw_scan_complete callback
is done after we get back to operating channel, so we do not perform
queue cal work. Fix this queue cal work from sw_scan_complete().

On mt76x0 we have to restore gain in MT_BBP(AGC, 8) register after
scanning, as it was multiple times modified by channel switch code.
So queue cal work without any delay to set AGC gain value.

Similar like in mt76x2 init AGC gain only when set operating channel
and just check before queuing cal work in sw_scan_complete() if
initialization was already done.

Fixes: bbd10586f0 ("mt76x0: phy: do not run calibration during channel switch")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:43 +01:00
Stanislaw Gruszka
c69505367c mt76: remove wait argument from mt76x02_mcu_set_radio_state
Remove wait argument from mt76x02_mcu_set_radio_state and newer wait
for response when sending CMD_POWER_SAVING_OP mcu command.
Note this change behaviour for PCIe devices, but the change is in
align with vendor driver.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:43 +01:00
Stanislaw Gruszka
3d2d61b5f7 mt76: remove wait argument from mt76x02_mcu_function_select
Remove wait argument from mt76x02_mcu_function_select and wait for
response when function is not Q_SELECT, what is the same behaviour
like in vendor driver.

Note this change behaviour for PCIe devices for Q_SELECT function
form wait to no-wait, and for mt76x0u BW_SETTING from no-wait to wait.
But the change is in align with vendor driver.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:43 +01:00
Stanislaw Gruszka
a74d633609 mt76: remove mcu_msg_alloc
We almost always use patter like this:

       skb = mt76_mcu_msg_alloc(dev, &msg, sizeof(msg));
       return mt76_mcu_send_msg(dev, skb, CMD_FUN_SET_OP, wait_resp);

This is not needed, we can allocate skb in mcu_send_msg routine.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:43 +01:00
Stanislaw Gruszka
ad3f993a08 mt76x0: use band parameter for LC calibration
We use always 1 as band parameter for MCU_CAL_LC, this break 2GHz,
we should use 0 for this band instead.

Patch fixes problems happened sometimes when try to associate with 2GHz
AP and manifest by errors like below:

[14680.920823] wlan0: authenticate with 18:31:bf:c0:51:b0
[14681.109506] wlan0: send auth to 18:31:bf:c0:51:b0 (try 1/3)
[14681.310454] wlan0: send auth to 18:31:bf:c0:51:b0 (try 2/3)
[14681.518469] wlan0: send auth to 18:31:bf:c0:51:b0 (try 3/3)
[14681.726499] wlan0: authentication with 18:31:bf:c0:51:b0 timed out

Fixes: 9aec146d0f ("mt76x0: pci: introduce mt76x0_phy_calirate routine")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:43 +01:00
Lorenzo Bianconi
07e5485212 mt76x0: phy: use tssi reported value to configure tx power if available
Use tssi calibrated value to configure tx power gain if tssi is enabled
in eeprom data

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:43 +01:00
Lorenzo Bianconi
3548a9dd2d mt76x0: phy: introduce tssi calibration support
Run mt76x0 tssi calibration process if enabled in eeprom data.
Perform calibration procedure every 4s

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:43 +01:00
Lorenzo Bianconi
693792ec55 mt76: move mt76x02_eeprom_copy in mt76x02-lib module
Move mt76x02_eeprom_copy utility routine in mt76x02-lib module
in order to be reused by mt76x0 driver adding tssi calibration
support

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:43 +01:00
Lorenzo Bianconi
016ebffba1 mt76x2u: init: use common routines for wcid/key initialization
Use mt76x02_mac_wcid_setup and mt76x02_mac_shared_key_setup for
shared keys and wcid table initialization and remove duplicated
code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:43 +01:00
Lorenzo Bianconi
40b6334803 mt76x2u: init: remove not useful configuration
Remove MT_TSO_CTRL and MT_HEADER_TRANS_CTRL_REG initialization since
it is already done in mt76_write_mac_initvals routine

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:43 +01:00
Lorenzo Bianconi
24702cdb5f mt76x0: init: use mt76x02_mac_wcid_setup for wcid configuration
Use mt76x02_mac_wcid_setup utility routine for wcid init configuration
and remove duplicated code. This patch fixes a mt76x0 AP issue since
hw key table selection was set to pairwise by default

Fixes: dbad2adcb2c7 ("mt76x0: pci: enable AP support")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:42 +01:00
Lorenzo Bianconi
544f9a532f mt76x2: move wcid_tx_rate conf at bootstrap
Move WCID tx rate configuration at device bootstrap since
the related register are always set to 0

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:42 +01:00
Lorenzo Bianconi
48c7658822 mt76x0: init: use mt76x02_mac_shared_key_setup in mt76x0_init_hardware
Use mt76x02_mac_shared_key_setup utility routine for shared key
initialization and remove duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:42 +01:00
Lorenzo Bianconi
0464cbfc36 mt76x0: phy: use mt76_poll_msec in mt76x0_phy_temp_sensor
Use mt76_poll_msec utility routine for CORE_R34 register polling
instead of mt76_poll in order to allow the hw to complete requested
calibration since on slow devices (e.g. mt7620 based boards) calibration
takes longer than 2ms

Fixes: 66a34c66e0 ("mt76x0: phy: add phy/vco temperature compensation")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:42 +01:00
Stanislaw Gruszka
b983a5b900 mt76x0: do not overwrite other MT_BBP(AGC, 8) fields
MT_BBP(AGC, 8) register has values depend on band in
mt76x0_bbp_switch_tab, so we should not overwrite other fields
than MT_BBP_AGC_GAIN when setting gain.

This can fix performance issues when connecting to 2.4GHz AP.

Fixes: 4636a2544c ("mt76x0: phy: align channel gain logic to mt76x2 one")
Acked-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:42 +01:00
Felix Fietkau
88046b2c9f mt76: add support for reporting tx status with skb
MT76x2/MT76x0 has somewhat unreliable tx status reporting, and for that
reason the driver currently does not report per-skb tx ack status at all.
This breaks things like client idle polling, which relies on the tx ack
status of a transmitted nullfunc frame.

This patch adds code to report skb-attached tx status if requested by
mac80211 or the rate control module. Since tx status is polled from a
simple FIFO register, the code needs to account for the possibility of
tx status events getting lost.

The code keeps a list of skbs for which tx status is required and passes
them to mac80211 once tx status has been filled in and the DMA queue is
done with it.
If a tx status event is not received after one second, the status rates
are cleared, and a succesful ACK is indicated to avoid spurious disassoc
during assoc or client polling.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:42 +01:00
Felix Fietkau
59b55d066f mt76: mt76x02: only override control->sta on sw-encrypted tx
control->sta is set to NULL early when encryption is turned on for the
station and info->control.hw_key is not set.
This code is missing a check for the 802.11 header protected flag, otherwise
it resets the station for other frames, e.g. client probing frames.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:42 +01:00
Felix Fietkau
65b526a108 mt76: mt76x02: skip station tx status for non-sta wcid entries
Fixes a crash that could occur if a frame is sent to a station, but the
station's wcid was not used (e.g. for software encrypted mgmt tx)

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:42 +01:00
Felix Fietkau
1a4846fcfe mt76: clean up more unused EXPORT_SYMBOLs
Make functions static where possible

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:42 +01:00
Lorenzo Bianconi
801ccc8a60 mt76x0: pci: add DFS support
Introduce dfs support in mt76x0e driver and unlock radar channels

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:42 +01:00
Lorenzo Bianconi
e6cb329105 mt76: move dfs support in mt76x02-lib module
Move mt76x2 DFS support in mt76x02-lib module in order to
be reused by mt76x0 driver and unlock DFS frequencies

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:42 +01:00
Lorenzo Bianconi
cc726268e4 mt76: move mt76x02_bss_info_changed in mt76x02-lib module
Unify drv_bss_info_changed mac80211 callback and remove duplicated
code in mt76x0 and mt76x2 drivers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:42 +01:00
Lorenzo Bianconi
317ed42b70 mt76: move tx protection routines in mt76x02-lib module
Move mt76x02_set_rts_threshold and mt76x02_mac_set_tx_protection
routines in mt76x02-lib module and remove duplicated code in mt76x0
and mt76x2 drivers. Remove pci_mac.c and mt76x0/mac.c since now are
empty files

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:41 +01:00
Lorenzo Bianconi
13ed9d4ae5 mt76x0: update init vals for MT_TX_PROT registers
Add missing VHT MT_TX_PROT register init values

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:41 +01:00
Lorenzo Bianconi
3670405193 mt76: move mt76x02_set_tx_ackto in mt76x02-lib module
Move mt76x02_set_tx_ackto and mt76x02_set_coverage_class routines
in mt76x02-lib module in order to be reused by mt76x0 driver.
This is a preliminary patch to unify drv_bss_info_changed mac80211
callback between mt76x0 and mt76x2 drivers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:41 +01:00
Lorenzo Bianconi
4cb23b650a mt76x0: pci: enable AP support
Add missing mac80211 callbacks to mt76x0e_ops data structure
and add mt76x02_beacon utility routines in mt76x0_bss_info_changed
in order to enable/disable beacon transmission

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:41 +01:00
Lorenzo Bianconi
fc245983a8 mt76: introduce mt76x02_init_beacon_config routine
Add mt76x02_init_beacon_config utility routine in mt76x02-lib
module in order to be reused by mt76x0 driver configuring
BSSID registers and remove duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:41 +01:00
Lorenzo Bianconi
f7c8a0f2da mt76: move mt76x02_sta_ps in mt76x02-lib module
Move mt76x02_sta_ps utility routine in mt76x02_util.c
in order to be reused by mt76x0 driver adding AP support

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:41 +01:00
Lorenzo Bianconi
1da0a411be mt76: move mt76x02_get_txpower in mt76x02_util.c
Move mt76x02_get_txpower utility routine in mt76x02-lib module
in order to be reused by mt76x0 and mt76x2u drivers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:41 +01:00
Lorenzo Bianconi
c2756a1c41 mt76: move mt76x02_sw_scan and mt76x02_sw_scan_complete in mt76x02-lib module
Move mt76x02_sw_scan and mt76x02_sw_scan_complete utility routines
in mt76x02_util.c in order to be reused by mt76x0 and mt76x2u drivers
and remove duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:41 +01:00
Lorenzo Bianconi
82b5c23941 mt76x0: pci: add pre_tbtt_tasklet support
Enable/disable pre_tbtt_tasklet in mt76x0 driver in order
to add AP support

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:41 +01:00
Lorenzo Bianconi
dfe6c80c92 mt76: move tx beacon routines in mt76x02-lib module
Move mt76x02_tx beacon utility routines in mt76x02_mmio.c
in order to be reused by mt76x0 driver adding AP support

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:41 +01:00
Lorenzo Bianconi
dc33b2512d mt76: move mac beacon routines in mt76x02-lib module
Move mt76x02_beacon mac routines in mt76x02_mac.c in
order to be reused by mt76x0 driver adding AP support

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:41 +01:00
Lorenzo Bianconi
5cbace02d8 mt76: move mt76x02_init_device in mt76x02-lib module
Move mt76x02_init_device routine in mt76x02_util.c in order to be
reused by mt76x0 driver and remove duplicated code. Move interface
combo definition supported by the driver in mt76x02_init_device routine

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:41 +01:00
Lorenzo Bianconi
dd61100db4 mt76: move mt76x02_mac_set_short_preamble in mt76x02_mac.c
Move mt76x02_mac_set_short_preamble routine in mt76x02-lib module
since it is shared between mt76x0 and mt76x2 drivers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:40 +01:00
Lorenzo Bianconi
f47301403f mt76x0: align mt76x0u and mt76x0e fw version
Unify firmware version used on mt76x0e and mt76x0u drivers.
Fallback to mt7610u fw if mt7610e one is not available

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:40 +01:00
Lorenzo Bianconi
64c6a54a5a mt76x0: mac: remove mt76x0_mac_set_ampdu_factor
Remove no longer used mt76x0_mac_set_ampdu_factor routine

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:40 +01:00
Lorenzo Bianconi
b13dc8a8da mt76x0: pci: add missing MODULE_FIRMWARE macro
Add missing firmware declaration for mt76x0e driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:40 +01:00
Lorenzo Bianconi
00eccdd622 mt76x0: init: simplify mt76x0_init_mac_registers
Simplify mt76x0_init_mac_registers routine using mt76_set, mt76_clear
and mt76_rmw utility routines

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:40 +01:00
Stanislaw Gruszka
ef442b73b6 mt76x0: antenna select corrections
Update mt76x0_phy_ant_select() to conform vendor driver, most notably
add dual antenna mode support, read configuration from EEPROM and
move ant select out of channel config to init phase. Plus small MT7630E
quirk for MT_CMB_CTRL register which vendor driver dedicated to this
chip do.

This make MT7630E workable with mt76x0e driver and do not cause any
problems on MT7610U for me.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:40 +01:00
Lorenzo Bianconi
e0168dc675 mt76: usb: fix static tracepoints
Add submit_urb and rx_urb static tracepoints in mt76-usb module.
Move trace_mac_txstat_fetch in mt76x02_mac_load_tx_status routine
in order to be available to usb drivers. Moreover remove
no longer used mt76x0/trace.{c,h}

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:40 +01:00
Felix Fietkau
cadc83efce mt76: mt76x0: handle chip specific initval differences
Some RF registers need different values for various chips.
For at least mt76x0_rf_central_tab registers, overwriting them later does
not work, as the wrong values can cause the entire system to hang on some
devices with MT7610E

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:40 +01:00
Felix Fietkau
5567b37359 mt76: clean up unused leftover EXPORT_SYMBOLs
Make previously exported functions static where possible

Acked-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:40 +01:00
Stanislaw Gruszka
a83150eaad mt76x0: do not perform MCU calibration for MT7630
Driver works better for MT7630 without MCU calibration, which
looks like it can hangs the firmware. Vendor driver do not
perform it for MT7630 as well.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:40 +01:00
Lorenzo Bianconi
1163bdb636 mt76x0: phy: unify calibration between mt76x0u and mt76x0e
Align phy calibration logic between mt76x0u and mt76x0e drivers
This patch improves connection stability with low SNR

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:40 +01:00
Lorenzo Bianconi
70289adc6a mt76x2u: introduce mac workqueue support
Add mac workqueue support to mt76x2u driver in order
to compute device statistics and add mac stuck routine

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:40 +01:00
Lorenzo Bianconi
73556561ab mt76x0: use mt76x02_mac_work as stats handler
Use mt76x02_mac_work utility routine as stats workqueue handler
and remove duplicated code. Moreover run mac stuck check in
mt76x02_mac_work for client interfaces.
Remove no longer used avg_ampdu_len and mt76x02_mac_stats data
structure in mt76x02_dev

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:39 +01:00
Lorenzo Bianconi
63f15d9459 mt76x0: use shared debugfs implementation
Use mt76x02 debugfs implementation and remove duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:39 +01:00
Lorenzo Bianconi
7605541308 mt76: move mt76x02_debugfs in mt76x02-lib module
Move mt76x02_debugfs in mt76x02-lib module in order to
be reused by mt76x0 driver and remove duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:39 +01:00
Lorenzo Bianconi
7dd735883d mt76: move mt76x02_mac_work routine in mt76x02-lib module
Move mt76x02_mac_work routine in mt76x02_mac.c in order to be reused by
mt76x0 driver to read device statistics

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:39 +01:00
Lorenzo Bianconi
6250318694 mt76x0: pci: add get_survey support
Move mt76x02_update_channel routine in mt76x02-lib module in
order to be reused by mt76x0 driver adding get_survey support

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:39 +01:00
Lorenzo Bianconi
b8defea4b2 mt76x0: phy: improve code readability in initvals_phy.h
Improve initvals_phy.h code readability (there are no actual changes
of original values)

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:39 +01:00
Lorenzo Bianconi
d3caa060e1 mt76x0: phy: simplify rf configuration routines
Simplify mt76x0_phy_vco_cal and mt76x0_phy_set_chan_rf_params
routines using mt76x0_rf_wr, mt76x0_rf_set and mt76x0_rf_clear
helper routines. Moreover over get rid of magic numbers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:39 +01:00
Lorenzo Bianconi
9c41078247 mt76x0: phy: use proper name convention
Use mt76x0_phy as prefix for routines in mt76x0/phy.c
Moreover use mt76x0_rf_set to enable vco calibration in
mt76x0_phy_vco_cal

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:39 +01:00
Lorenzo Bianconi
989582e50c mt76x2u: align channel gain logic to mt76x2 one
Update vga tuning algorithm to the one used in mt76x2 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:39 +01:00
Lorenzo Bianconi
cac97ed681 mt76x2: align mt76x2 and mt76x2u firmware
Unify firmware version used on mt76x2e and mt76x2u drivers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30 12:21:39 +01:00
Lorenzo Bianconi
1770f0fa97 mt76: fix uninitialized mutex access setting rts threshold
Fix following crash due to a leftover uninitialized mutex access
in mt76x2_set_rts_threshold routine.

[   31.018059] Call Trace:
[   31.018341]  register_lock_class+0x51f/0x530
[   31.018828]  __lock_acquire+0x6c/0x1580
[   31.019247]  lock_acquire+0x88/0x120
[   31.021089]  __mutex_lock+0x4a/0x4f0
[   31.023343]  mt76x2_set_rts_threshold+0x28/0x50
[   31.023831]  ieee80211_set_wiphy_params+0x16d/0x4e0
[   31.024344]  nl80211_set_wiphy+0x72b/0xbc0
[   31.024781]  genl_family_rcv_msg+0x192/0x3a0
[   31.025233]  genl_rcv_msg+0x42/0x89
[   31.026079]  netlink_rcv_skb+0x38/0x100
[   31.026475]  genl_rcv+0x1f/0x30
[   31.026804]  netlink_unicast+0x19c/0x250
[   31.027212]  netlink_sendmsg+0x1ed/0x390
[   31.027615]  sock_sendmsg+0x31/0x40
[   31.027973]  ___sys_sendmsg+0x23c/0x280
[   31.030414]  __sys_sendmsg+0x42/0x80
[   31.030783]  do_syscall_64+0x4a/0x170
[   31.031160]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   31.031677] RIP: 0033:0x7f3498b39ba7
[   31.033953] RSP: 002b:00007fffe19675b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.034883] RAX: ffffffffffffffda RBX: 00000000012d5350 RCX: 00007f3498b39ba7
[   31.035756] RDX: 0000000000000000 RSI: 00007fffe19675f0 RDI: 0000000000000003
[   31.036587] RBP: 00000000012da740 R08: 0000000000000002 R09: 0000000000000000
[   31.037422] R10: 0000000000000006 R11: 0000000000000246 R12: 00000000012da880
[   31.038252] R13: 00007fffe19675f0 R14: 00007fffe19678c0 R15: 00000000012da880

Fixes: 108a4861ef ("mt76: create new mt76x02-lib module for common mt76x{0,2} code")
Reported-by: lorenzo.trisolini@fluidmesh.com
Reported-by: luca.bisti@fluidmesh.com
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-11-16 15:15:49 +02:00
Arnd Bergmann
b374e8686f mt76: fix building without CONFIG_LEDS_CLASS
When CONFIG_LEDS_CLASS is disabled, or it is a loadable module while
mt76 is built-in, we run into a link error:

drivers/net/wireless/mediatek/mt76/mac80211.o: In function `mt76_register_device':
mac80211.c:(.text+0xb78): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `devm_of_led_classdev_register'

We don't really need a hard dependency here as the driver can presumably
work just fine without LEDs, so this follows the iwlwifi example and
adds a separate Kconfig option for the LED support, this will be available
whenever it will link, and otherwise the respective code gets left out from
the driver object.

Fixes: 17f1de56df ("mt76: add common code shared between multiple chipsets")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-11-06 18:46:33 +02:00
Lorenzo Bianconi
bbd10586f0 mt76x0: phy: do not run calibration during channel switch
Do not perform phy/vga calibration during channel switch.
Moreover remove mt76x0_agc_save and mt76x0_agc_restore routines
since they are no longer necessary. Furthermore run mt76_set_channel
in order to check if there are pending frames during channel switch

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:53 +02:00
Lorenzo Bianconi
4636a2544c mt76x0: phy: align channel gain logic to mt76x2 one
Update vga tuning algorithm to the one used in mt76x2 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:52 +02:00
Lorenzo Bianconi
e48797e9b6 mt76: introduce mt76x02_init_agc_gain routine
Add mt76x02_init_agc_gain routine in mt76x02-lib moudule in
order to be reused by mt76x0 for vga initalization

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:50 +02:00
Lorenzo Bianconi
9f884f0f9d mt76: move mt76x02_phy_adjust_vga_gain in mt76/mt76x02_phy.c
Move mt76x02_phy_adjust_vga_gain routine in mt76x02-lib module
in order to be reused by mt76x0 driver for vga calibration

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:49 +02:00
Lorenzo Bianconi
b225a9b6c2 mt76: move rssi_gain_thresh routines in mt76x02-lib module
Move mt76x2_get_rssi_gain_thresh and mt76x2_get_low_rssi_gain_thresh
routines in mt76x02-lib module in order to be reused by mt76x0 driver
for dynamic vga calibration

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:48 +02:00
Lorenzo Bianconi
66a34c66e0 mt76x0: phy: add phy/vco temperature compensation
Introduce phy/vco temperature calibration.
Moreover fix configuration of register 67 on bank0
during temperature reading and use mt76_poll utility routine
to poll core34 register.
Furthermore temperature compensation needs to be disabled
if the device supports tssi compensation.
This issue has never been hit since temperature reading is not
actually used by usb code.

Fixes: 10de7a8b4a ("mt76x0: phy files")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:47 +02:00
Lorenzo Bianconi
4afeb39624 mt76x0: eeprom: introduce mt76x0_tssi_enabled routine
Add mt76x0_tssi_enabled in order to check if tssi compensation
is enabled since mt76x0 condition differs from mt76x2 one.
Moreover move back mt76x02_temp_tx_alc_enabled and mt76x02_tssi_enabled
routines in mt76x2/eeprom.h since they are mt76x2 specific

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:46 +02:00
Lorenzo Bianconi
592ebc9cc6 mt76x0: phy: update set_channel for mt76x0e devices
Do not run mt76x0_vco_cal and mt76x0_bbp_set_bw routines and
configure MT_TX_SW_CFG0 register for pcie devices in
mt76x0_phy_set_channel function.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:45 +02:00
Lorenzo Bianconi
9aec146d0f mt76x0: pci: introduce mt76x0_phy_calirate routine
Add mt76x0_phy_calirate routine in order to perform
phy calibration for mt76x0e devices.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:44 +02:00
Lorenzo Bianconi
3eaf05de1b mt76x0: pci: rename mt76x0_phy_calibrate
Rename mt76x0_phy_calibrate routine in mt76x0_phy_calibration_work
in order to not collide with calibration routine for mt76x0e

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:42 +02:00
Lorenzo Bianconi
370c6415ef mt76: move mt76x02_phy_set_band in mt76x02-lib module
Move mt76x02_phy_set_band routine in mt76x02_phy.c since
it is shared between mt76x0 and mt76x2 drivers and remove
duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:41 +02:00
Lorenzo Bianconi
032c08f4c6 mt76: move mt76x02_phy_set_bw in mt76x02-lib module
Move mt76x02_phy_set_bw routine in mt76x02_phy.c since
it is shared between mt76x0 and mt76x2 drivers and remove
duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:40 +02:00
Lorenzo Bianconi
7859c543b6 mt76x0: phy: remove channel parameter from mt76x0_phy_set_chan_bbp_params
Remove unused channel parameter from mt76x0_phy_set_chan_bbp_params
routine signature

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:39 +02:00
Lorenzo Bianconi
4df942733f mt76x0: phy: fix restore phase in mt76x0_phy_recalibrate_after_assoc
Fix restore value configured in MT_BBP(IBI, 9) register in
mt76x0_phy_recalibrate_after_assoc routine.

Fixes: 10de7a8b4a ("mt76x0: phy files")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:38 +02:00
Felix Fietkau
ebb632db0f mt76: mt76x0e: another fix for the external PA current setting
- Use the register number define instead of a magic value
- Fix inverted bit test (override needs to be applied if the bit is not set)

Fixes: 2b2cb40bcd ("mt76x0: pci: add hw initialization at bootstrap")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:36 +02:00
YueHaibing
69585ef9bb mt76x0: pci: fix set external PA I/O current
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/wireless/mediatek/mt76/mt76x0/pci.c: In function 'mt76x0e_register_device':
drivers/net/wireless/mediatek/mt76/mt76x0/pci.c:107:8: warning:
 variable 'data' set but not used [-Wunused-but-set-variable]

It seems correct value to write is 'data'

Fixes: 2b2cb40bcd ("mt76x0: pci: add hw initialization at bootstrap")
Acked-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:35 +02:00
Felix Fietkau
5155938d8a mt76: do not store aggregation sequence number for null-data frames
Fixes a rare corner case where a BlockAckReq might get the wrong
sequence number.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:34 +02:00
Stanislaw Gruszka
09580a1ec4 mt76x0: remove dma.h
dma.h is not used any longer.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:32 +02:00
Stanislaw Gruszka
f3727daed8 mt76: reserve enough room for USB tx skbs
Reserve enough room for USB skb, so we don not need to check
the room every time we send frame.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:31 +02:00
Lorenzo Bianconi
4ce78b048c mt76x0: pci: add mt76x0_register_device in mt76x0e_register_device
Run mt76x0_register_device routine in mt76x0e_register_device
in order to register the device to the mac80211 layer.
Moreover init mt76_driver_ops data structure and register
interrupt line

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:29 +02:00
Lorenzo Bianconi
320c85e6d0 mt76: disable ldpc coding for mt76x0 devices
Disable ldpc coding for mt76x0 devices. Morover remove
mt76x02_mac_fill_txwi routine since it is used just in
mt76x02_mac_write_txwi

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:28 +02:00
Lorenzo Bianconi
78e62de322 mt76x0: pci: add missing mac80211 callbacks
Add missing mac80211 callbacks in mt76x0e_ops data structure

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:27 +02:00
Lorenzo Bianconi
127aa72691 mt76x0: pci: report firmware version using ethtool
Report via ethtool fw_ver and build_ver members of mt76x02_fw_header
data structure similarly to what is reported in the syslog

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:26 +02:00
Lorenzo Bianconi
26a9daa691 mt76: use mt76x02_dev instead of mt76_dev in mt76x02_eeprom.c
Use mt76x02_dev data structure as reference in mt76x02_eeprom.c
instead of mt76_dev

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:24 +02:00
Lorenzo Bianconi
91be8e8a2c mt76: use mt76x02_dev instead of mt76_dev in mt76x02_txrx.c
Use mt76x02_dev data structure as reference in mt76x02_txrx.c
instead of mt76_dev

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:23 +02:00
Lorenzo Bianconi
8d66af49a3 mt76: use mt76x02_dev instead of mt76_dev in mt76x02_mac.c
Use mt76x02_dev data structure as reference in mt76x02_mac.c
instead of mt76_dev

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:22 +02:00
Lorenzo Bianconi
95c3e451e6 mt76: use mt76x02_dev instead of mt76_dev in mt76x02_usb_mcu.c
Use mt76x02_dev data structure as reference in mt76x02_usb_mcu.c
instead of mt76_dev

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:20 +02:00
Lorenzo Bianconi
d87cf75f11 mt76: use mt76x02_dev instead of mt76_dev in mt76x02_util.c
Use mt76x02_dev data structure as reference in mt76x02_util.c
instead of mt76_dev

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:19 +02:00
Lorenzo Bianconi
bfdff5d03e mt76: use mt76x02_dev instead of mt76_dev in mt76x02_phy.c
Use mt76x02_dev data structure as reference in mt76x02_phy.c
instead of mt76_dev

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:18 +02:00
Lorenzo Bianconi
499cd0aa3b mt76: use mt76x02_dev instead of mt76_dev in mt76x02_mcu.c
Use mt76x02_dev data structure as reference in mt76x02_mcu.c
instead of mt76_dev

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:16 +02:00
Lorenzo Bianconi
a14054ce0b mt76x0: phy: fix bank check in mt76x0_rf_csr_{wr,rr}
Fix typo in bank check in mt76x0_rf_csr_{wr,rr} routines.
This issue has never been hit since mt76x0_rf_csr_{wr,rr}
are actually used just by pci code

Fixes: 10de7a8b4a ("mt76x0: phy files")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:15 +02:00
Stanislaw Gruszka
69cacac3b3 mt76x0: use bus helper to identify rf access method
Use mt76_is_usb() to identify RF access method instead of
MT76_STATE_MCU_RUNNING flag and add warning since MCU has
to be initialized before we can access RF registers via MCU.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:14 +02:00
Stanislaw Gruszka
f2761e53d6 mt76x0: correct RF reg pairs write for PCIe
We have to use RF CSR method for PCIe.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:13 +02:00
Stanislaw Gruszka
c50479fa7a mt76: allow to identify bus
Add helpers to identify bus type.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:11 +02:00
Stanislaw Gruszka
6f223a3dab mt76x0: correct RF access via RF_CSR register.
PCIe version don't use MCU for RF registers access. We need
to correct RF CSR method to support up to 127 RF registers.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:10 +02:00
Stanislaw Gruszka
bed259051d mt76x0: print BBP version only for debug
Use dev_dbg to print BBP version.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13 17:39:09 +02:00
David S. Miller
d864991b22 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts were easy to resolve using immediate context mostly,
except the cls_u32.c one where I simply too the entire HEAD
chunk.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-12 21:38:46 -07:00
Greg Kroah-Hartman
834d3cd294 Fix open-coded multiplication arguments to allocators
- Fixes several new open-coded multiplications added in the 4.19 merge window.
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Merge tag 'alloc-args-v4.19-rc8' of https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Kees writes:
  "Fix open-coded multiplication arguments to allocators

   - Fixes several new open-coded multiplications added in the 4.19
     merge window."

* tag 'alloc-args-v4.19-rc8' of https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  treewide: Replace more open-coded allocation size multiplications
2018-10-11 19:10:30 +02:00
Kees Cook
329e098939 treewide: Replace more open-coded allocation size multiplications
As done treewide earlier, this catches several more open-coded
allocation size calculations that were added to the kernel during the
merge window. This performs the following mechanical transformations
using Coccinelle:

	kvmalloc(a * b, ...) -> kvmalloc_array(a, b, ...)
	kvzalloc(a * b, ...) -> kvcalloc(a, b, ...)
	devm_kzalloc(..., a * b, ...) -> devm_kcalloc(..., a, b, ...)

Signed-off-by: Kees Cook <keescook@chromium.org>
2018-10-05 18:06:30 -07:00
Lorenzo Bianconi
9b43960b89 mt76: move irq handler in mt76x02-lib moudle
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: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:46 +02:00
Lorenzo Bianconi
53d20fdb46 mt76: move tx_tasklet management in mt76x02-lib moudle
Move tx_tasklet management in mt76x02_mmio.c in order to
be reused by mt76x0 driver and remove duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:46 +02:00
Lorenzo Bianconi
a23fde09c2 mt76: use mt76x02_dev instead of mt76_dev in mt76x02_mmio.c
Use mt76x02_dev data structure as reference in mt76x02_mmio.c
instead of mt76_dev

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:46 +02:00
Lorenzo Bianconi
466495b1cf mt76: move mt76x02_tx_complete in mt76x02-lib module
Move mt76x02_tx_complete mt76x02-lib module in order to
be reused by mt76x0 drivers for irq unification.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:46 +02:00
Lorenzo Bianconi
3e2342ed93 mt76: move mt76x02_mac_poll_tx_status in mt76x02-lib moudle
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: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:46 +02:00
Lorenzo Bianconi
b38383e634 mt76: usb: move mt76x02u_tx_complete_skb in mt76x02_usb_core.c
Move mt76x02u_tx_complete_skb and mt76x02u_remove_dma_hdr since they
are used just by usb code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:46 +02:00
Lorenzo Bianconi
5ec574859c mt76: move mt76x02_tx_prepare_skb in mt76x02_txrx.c
Move mt76x02_tx_prepare_skb routine in mt76x02-lib module in order
to be reused by mt76x0 driver in tx datapath

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:46 +02:00
Lorenzo Bianconi
1ea0a1b12a mt76: move tpc routines in mt76x02-lib module
Move mt76x02_tx_get_txpwr_adj and mt76x02_tx_set_txpwr_auto routines
in mt76x02-lib module since they are shared between mt76x0 and mt76x2
drivers. Moreover remove get_txpwr_adj function pointer

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:46 +02:00
Lorenzo Bianconi
7cd79b8d9b mt76x2: remove leftover function declatarions
Remove following function declarations since they have been moved
to mt76x02-lib module:
- mt76x2_sta_add
- mt76x2_sta_remove
- mt76x2_remove_interface
- mt76x2_conf_tx
- mt76x2_txq_init

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:46 +02:00
Lorenzo Bianconi
7a07adcdff mt76: rename mt76x02_util.h in mt76x02.h
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: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:46 +02:00
Lorenzo Bianconi
8e3ed0017b mt76: move txrx shared routines in mt76x02_txrx.c
Add mt76x02_txrx.c source file in order to contain tx/rx shared
routines for mt76x0 and mt76x2 drivers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:46 +02:00
Lorenzo Bianconi
2f0308d0b1 mt76: move mt76x02_tx in mt76x02-lib module
Move mt76x02_tx shared routine in mt76x02-lib module and remove
duplicated code. Moreover remove mt76x0/tx.c since it is an empty
file

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:45 +02:00
Lorenzo Bianconi
9ba1e0e69c mt76: unify rxwi parsing between mt76x2 and mt76x0 drivers
Unify rxwi parsing between mt76x2 and mt76x0. Remove the following
routines:
- mt76x0_phy_get_rssi
- mt76x0_queue_rx_skb
- mt76x0_mac_process_rx
Moreover remove mt76x2/common.c and mt76x0/mac.h since are empty files
Enable CCMP PN sw validation

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:45 +02:00
Lorenzo Bianconi
d9f8934ed1 mt76: move mt76x02_mac_process_rx in mt76x02-lib module
Move mt76x02_mac_process_rx utility routine in mt76x02-lib
in order to by reused by mt76x0 driver for rxwi parsing.
Add stream number check in mt76x02_mac_process_rx since mt76x0
chipsets are 1x1:1

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:45 +02:00
Lorenzo Bianconi
b2d871c049 mt76x0: merge mt76x0_dev in mt76x02_dev
Merge mt76x0_dev data structure in mt76x02_dev one and remove
duplicated code. Remove unused definition in mt76x0.h.
Moreover merge mt76x0_caldata and mt76x02_rx_freq_cal data structures.
This is a preliminary patch for rxwi unification.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:45 +02:00
Lorenzo Bianconi
e40803f2af mt76x2: move mt76x2_dev in mt76x02_util.h
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: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:45 +02:00
Lorenzo Bianconi
46a7418761 mt76x0: remove hw_atomic_mutex mutex in mt76x0_dev
Remove hw_atomic_mutex mutex in mt76x0_dev data structure
since mt76x0_phy_set_channel is already protected by mt76_dev
mutex while mt76x0_chip_onoff is used just at device probe or
cleanup

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:45 +02:00
Lorenzo Bianconi
63cc936b53 mt76x0: remove unused variable in mt76x0_dev
Remove no longer used mac_lock spinlock and data array
in mt76x0_dev data structure

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:45 +02:00
Lorenzo Bianconi
ac85ab8c08 mt76x0: mac: use sta ewma estimation for rssi tracking
Use shared mt76x02 utility routines for rssi tracking.
Moreover remove no longer used con_mon_lock spinlock
and following variable:
- ap_bssid
- bcn_freq_off
- bcn_phy_mode
- avg_rssi

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:45 +02:00
Lorenzo Bianconi
56e8d4dd5c mt76: move mt76x02_rx_get_sta and mt76x02_rx_get_sta_wcid in mt76x02_util.h
Move mt76x02_rx_get_sta and mt76x02_rx_get_sta_wcid utility routines in
mt76x02-lib module since it will be used by mt76x0 driver in order to
unify rxwi parsing

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:45 +02:00
Lorenzo Bianconi
50b9e8d55a mt76: move mt76x02_phy_get_min_avg_rssi in mt76x02_phy.c
Move mt76x02_phy_get_min_avg_rssi in mt76x02-lib module since
it will be used by mt76x0 driver in order to unify rxwi parsing

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:44 +02:00
Lorenzo Bianconi
5e6c49eca9 mt76x0: init: remove unnecessary configurations
Remove leftover configuration for legacy devices in
mt76x0_init_mac_registers routine. Moreover remove
unnecessary msleep delay

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:44 +02:00
Lorenzo Bianconi
c4ed5088e4 mt76: usb: use mt76x02u_tx_prepare_skb to fill txwi
Use mt76x02u_tx_prepare_skb routine to fill txwi in mt76x2u and
mt76x0u driver and remove duplicated code. Moreover add static
qualifier to mt76x02_mac_tx_rate_val and mt76x02_mac_fill_txwi
routines

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:44 +02:00
Lorenzo Bianconi
427f9ebec6 mt76: move mt76x02_mac_write_txwi in mt76x02-lib module
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: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:44 +02:00
Lorenzo Bianconi
1ef3aa8893 mt76: add get_tx_txpwr_adj function pointer to mt76_driver_ops
Add get_tx_txpwr_adj function pointer to mt76_driver_ops data structure
as a preliminary patch to unify txwi configuration between mt76x0 and
mt76x2 drivers since tpc is currently supported just by mt76x2 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:44 +02:00
Lorenzo Bianconi
d697b00b15 mt76: move mt76x02_tx_get_max_txpwr_adj in mt76x02_util.c
Move mt76x02_tx_get_max_txpwr_adj routine in mt76x02-lib module
since now both mt76x0 and mt76x2 drivers read rate tx power gain from
rate_power data structure. Moreover remove get_max_txpwr_adj function
pointer from mt76_driver_ops data structure

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:44 +02:00
Lorenzo Bianconi
1419022797 mt76x0: usb: stop cal/mac workqueues at hw stop
Stop mac and calibration work stopping the hw even if the
device has been removed

Fixes: b11e19694d ("mt76x0: add ieee80211_ops ops pointer to
mt76x0_alloc_device signature")

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:44 +02:00
Lorenzo Bianconi
0536478cba mt76: usb: fix hw initialization sequence
mt76u_alloc_queues need to be called before mt76u_mcu_init_rx
since it initializes rx_page_lock spinlock used in mt76u_buf_alloc
routine.

Fixes: b11e19694d ("mt76x0: add ieee80211_ops ops pointer to
mt76x0_alloc_device signature")

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:44 +02:00
Stanislaw Gruszka
c87dff8cc3 mt76: fix frag length allocation for usb
This is correct fix for c12128ce44 ("mt76: use a per rx queue page
fragment cache"). We use wrong length when we allocate segments for
MCU transmissions, which require bigger segment size than e->buf_size.

Commit 481bb04324 ("mt76: usb: make rx page_frag_cache access atomic")
partially solved the problem or actually mask it by changing
mt76u_mcu_init_rx() and mt76u_alloc_queues() sequence, so e->buf_size
become non zero any longer, but still not big enough to handle MCU data.

Patch fixes memory corruption which can manifest itself as random,
not easy to reproduce crashes, during mt76 driver load or unload.

Fixes: c12128ce44 ("mt76: use a per rx queue page fragment cache")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:44 +02:00
Colin Ian King
e3469c5ea7 mt76: fix header guard macro define names
The header guards that are #defined are different from those being
checked.  Fix this by #defining them to the correct name.

Fixes clang warnings:
drivers/net/wireless/mediatek/mt76/mt76x02_mcu.h:17:9:
warning: '__MT76x02_MCU_H' is used as a header guard here, followed
by #define of a different macro [-Wheader-guard]

drivers/net/wireless/mediatek/mt76/mt76x02_usb.h:17:9:
warning: '__MT76x02_USB_H' is used as a header guard here, followed
by #define of a different macro [-Wheader-guard]

Fixes: 905db74701 ("mt76: usb: move mt76x02 mcu code in mt76x02-usb module")
Fixes: edaa580bc8 ("mt76: move shared mcu_calibrate routine in mt76x02-lib module")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:44 +02:00
Lorenzo Bianconi
1613c621e1 mt76x2: move mt76x2 source files to mt76x2 folder
Move mt76x2 and mt76x2u drivers to mt76x2 subfolder and
leave just shared code in mt76 root folder

Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:44 +02:00
Lorenzo Bianconi
d00efcf123 mt76x0: pci: add mt76x0e_cleanup routine
Add mt76x0e_cleanup routine to tidy up the device
during device removal

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05 20:05:43 +02:00
Felix Fietkau
5289976ad8 mt76: mt76x2: fix multi-interface beacon configuration
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: Felix Fietkau <nbd@nbd.name>
2018-10-01 13:26:21 +02:00
Felix Fietkau
49f45fa13d mt76: check aggregation sequence number for frames sent via drv_tx
ps-poll response frames can be sent via drv_tx. Store the frame sequence number
for such frames, in case a BlockAckReq needs to be sent

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:46 +02:00
Felix Fietkau
36d910960f mt76: fix handling ps-poll frames
Hardware station lookup for pspoll frames can fail, which makes the driver
ignore ps-poll frames. Fix the resulting powersave issues by looking up
the station for pspoll frames in software

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:45 +02:00
Lorenzo Bianconi
66a9ccd6e3 mt76x0: usb: move mt76x0u_tx_prepare_skb in usb.c
Move mt76x0u_tx_prepare_skb routine in usb module in
order to remove leftover usb dependency from generic code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:44 +02:00
Lorenzo Bianconi
8d98c15343 mt76x0: eeprom: load eeprom data from mtd by default
Read eeprom data from mtd memory by default and fall-back
to efuse if it fails

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:43 +02:00
Lorenzo Bianconi
188fd8c4ce mt76x0: pci: add mt76x0e_{start/stop} callbacks
Introduce mt76x0e_start and mt76x0e_stop mac80211
callbacks to start/stop device mac opening/closing
the netdevice

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:41 +02:00
Lorenzo Bianconi
b11e19694d mt76x0: add ieee80211_ops ops pointer to mt76x0_alloc_device signature
Add ieee80211_ops ops pointer to mt76x0_alloc_device routine signature
in order to specify mac80211 callbacks and remove usb dependency from
mt76x0 generic code.
Move mt76x0_ops callbacks in usb module in order to remove leftover
usb dependency in mt76x0 generic code.
Introduce mt76x0e_ops mac80211 callbacks for pci code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:40 +02:00
Lorenzo Bianconi
6034b2b07a mt76: move set_{tx,rx}_path routines in mt76x02-lib module
Move mt76x02_phy_set_rxpath and mt76x02_phy_tx_dac routines in
mt76x02_phy.c since they are shared between mt76x2 and mt76x0 drivers.
Moreover move chainmask variable from mt76x2/mt76x0 to mt76_dev data
structure

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:39 +02:00
Lorenzo Bianconi
4468e92cf8 mt76x0: phy: set antenna parameter according to wireless band
Move mt76x0_ant_select routine in __mt76x0_phy_set_channel in order to
configure antenna parameters according to the current wireless channel

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:38 +02:00
Lorenzo Bianconi
2b2cb40bcd mt76x0: pci: add hw initialization at bootstrap
Add mt76x0e_register_device routine in pci.c
to initialize the device during hw probe.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:37 +02:00
Lorenzo Bianconi
faa605bdfa mt76x0: usb: move initialization code in usb.c
Move usb initialization code in mt76x0-usb module in
order to remove usb dependency from generic init code
(not completed yet). Moreover fix a memory leak in usb probe
if mt76x02_wait_for_mac fails

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:36 +02:00
Lorenzo Bianconi
9f04eb7bb2 mt76: add mt76x02_mac_start routine
Introduce mt76x02_mac_start since the mac start code is shared between
mt76x0e and mt76x2 drivers.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:35 +02:00
Lorenzo Bianconi
a31821abe0 mt76x0: init rx filter in mt76x0_init_hardware
Initialize rxfilter mask at bootstrap an not at mac start.
This is a preliminary patch to share mt76x2_mac_start routine
between mt76x2e and mt76x0e drivers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:33 +02:00
Lorenzo Bianconi
512bd4b1c3 mt76x0: init: remove MT_PBF_SYS_CTRL configuration in mt76x0_reset_csr_bbp
Remove MT_PBF_SYS_CTRL configuration in mt76x0_reset_csr_bbp since
it is already initialized in mt76x0_init_mac_registers routine

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:32 +02:00
Lorenzo Bianconi
00aaded0e9 mt76x0: init: remove duplicated initialization
Remove MT_HEADER_TRANS_CTRL_REG/MT_TSO_CTRL configuration
since they are already initialized in mt76x0_init_mac_registers
routine

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:31 +02:00
Lorenzo Bianconi
3b11db26ea mt76x0: use mt76x02 utility routines in mt76x0 init code
Use mt76x02_wait_for_wpdma and mt76x02_wait_for_txrx_idle
utility routines in mt76x0_init_hardware and mt76x0_mac_start
and remove duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:30 +02:00
Lorenzo Bianconi
f16f700d89 mt76x0: usb: move mcu code in usb_mcu.c
Move usb mcu code in a dedicated source file in order to remove
usb dependency from generic source files and improve code
maintainability

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:29 +02:00
Lorenzo Bianconi
56babfd9a2 mt76x0: pci: move mcu code in pci_mcu.c
Move pci mcu code in a dedicated source file in order to
improve maintainability and facilitate new device support
development

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:28 +02:00
Lorenzo Bianconi
7ed2229936 mt76x0: update initvals to latest version of vendor driver
Update mac/rf/dcoc initial values to latest version of vendor driver.
Improve code readability

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:27 +02:00
Lorenzo Bianconi
713224164b mt76: move mt76x2_wait_for_bbp in mt76x02-lib module
Move mt76x2_wait_for_bbp utility routine in mt76x02_util.h
in order to be resued by mt76x0 driver. Morover rename it in
mt76x02_wait_for_txrx_idle

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:25 +02:00
Lorenzo Bianconi
13fd2d2a6d mt76: mmio: add implementation of wr_rp and rd_rp
Introduce mmio implementation of mt76_mmio_rd_rp and
mt76_mmio_wr_rp and remove mt76x2 duplicated code.
mt76_mmio_{wr,rd}_rp allows to reuse mt76x0 init code
adding mt76x0e support

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:24 +02:00
Lorenzo Bianconi
a6daf796c0 mt76: move mt76x02_beacon_offset in mt76x02_util.c
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: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:23 +02:00
Lorenzo Bianconi
b2eabd4c32 mt76: move queue initialization in mt76x02_mmio.c
Move mt76x02_dma_init, mt76x02_init_rx_queue and mt76x02_init_tx_queue
routines in mt76x02-lib module in order to be reused by mt76x0 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:22 +02:00
Lorenzo Bianconi
957068c23f mt76: move mt76x02_set_irq_mask in mt76x02_mmio.c
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: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:21 +02:00
Lorenzo Bianconi
208856493e mt76: add mt76x02_dma_enable/mt76x02_dma_disable utility routines
Introduce mt76x02_dma_enable and mt76x02_dma_disable utility routines
in order to be reused in mt76x0 mac configuration and remove duplicated
code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:20 +02:00
Lorenzo Bianconi
5f1fa4cdb7 mt76: move wait_for_wpdma in mt76x02_dma.h
Move wait_for_wpdma utility routine in mt76x02_dma.h
in order to be reused by mt76x0 driver. Moreover add
the possibility to specify the timeout value in
wait_for_wpdma signature

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:18 +02:00
Lorenzo Bianconi
5b39435592 mt76x0: use mt76_poll in mt76x0_set_wlan_state
Use mt76_poll utility routine in mt76x0_set_wlan_state to check
if the PLL/XTAL is ready

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:17 +02:00
Felix Fietkau
62e04f8a31 mt76x2: disable WLAN core before probe
If the WLAN core is still active during initialization, it might cause
the MCU or DMA to hang. This can happen during soft reboot, so disable
the core + clock early to avoid this issue.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:16 +02:00
Stanislaw Gruszka
d6500cf370 mt76x0: add quirk to disable 2.4GHz band for Archer T1U
TP-LINK Archer T1U do not support 2.4GHz band despite EEPROM
reports that. Add quirk to mask out 2.4GHz support.

Reported-by: Sid Hayn <sidhayn@gmail.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:15 +02:00
Hauke Mehrtens
606f8e3433 mt76: use skb_pad() instead of __skb_pad()
mt76 uses __skb_pad() with free_on_error set to true, this is the same
as calling skb_pad().
This patch does not change any functionality, but it makes it easier to
backport this driver in backports, because skb_pad() is also available
in older kernel versions.

Fixes: b40b15e152 ("mt76: add usb support to mt76 layer")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:13 +02:00
Lorenzo Bianconi
481bb04324 mt76: usb: make rx page_frag_cache access atomic
Add rx_page_lock spinlock in order to make rx page fragment access
atomic. This patch fixes the following crash that occasionally
occurs during module loading/unloading

BUG: unable to handle kernel paging request at ffff9f8322e19000
PGD 27ba01067 P4D 27ba01067 PUD 27ddba063 PMD 263b35063 PTE 8000000262e19061
Oops: 0003 [#1] SMP PTI
CPU: 2 PID: 1766 Comm: systemd-udevd Not tainted 4.19.0-rc5+ #6
Hardware name: ASUSTeK COMPUTER INC. ESC2000 G2/Z9PE-D8 WS, BIOS 0405 03/19/2012
RIP: 0010:__memcpy+0x12/0x20
RSP: 0018:ffffba13849b3ad8 EFLAGS: 00010246
RAX: ffff9f8322e17004 RBX: 00000000000038f0 RCX: 000000000000031f
RDX: 0000000000000000 RSI: ffffba13844cf058 RDI: ffff9f8322e18ffc
RBP: 0000000000010c6c R08: 0000000000000000 R09: 0000607ec0000000
R10: 0000000000000003 R11: 0000000000003e2e R12: ffff9f8324cd9540
R13: 0000000000000000 R14: ffffba13849b3b30 R15: ffff9f8322e17000
FS:  00007fadec85b880(0000) GS:ffff9f833fa80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff9f8322e19000 CR3: 0000000263428001 CR4: 00000000000606e0
Call Trace:
 mt76x02u_mcu_fw_send_data+0x16c/0x270 [mt76x02_usb]
 mt76x0u_probe+0x35a/0x598 [mt76x0u]
 usb_probe_interface+0x113/0x310
 really_probe+0x1c8/0x400
 driver_probe_device+0x5c/0x130
 __driver_attach+0xec/0x110
 bus_for_each_dev+0x50/0x90
 bus_add_driver+0x1c0/0x280
 driver_register+0x5b/0xe0
 usb_register_driver+0x7c/0x140
 do_one_initcall+0x44/0x19b
 do_init_module+0x5a/0x210
 load_module+0x175c/0x1bc0
 __do_sys_finit_module+0x97/0xc0
 do_syscall_64+0x3f/0xf0
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fadeb6f1809
RSP: 002b:00007ffe548f9f38 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 00007fadebdf0d89 RCX: 00007fadeb6f1809
RDX: 0000000000000000 RSI: 00007fadebdf0d89 RDI: 0000000000000006
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000006 R11: 0000000000000246 R12: 0000560b9ef58ab0
R13: 0000560b9ef29800 R14: 0000560b9ef59040 R15: 0000000000020000

Fixes: c12128ce44 ("mt76: use a per rx queue page fragment cache")
Reported-by: Stanislaw Gruszka <sgruszka@redhat.com>
Tested-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:12 +02:00
Davide Caratti
22509324c5 mt76: report firmware version using ethtool
print fw_ver and build_ver members of struct mt76x02_fw_header, similarly
to what appears in the output of 'dmesg' when the MCU firmware is loaded.

Reported-by: Sid Hayn <sidhayn@gmail.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:11 +02:00
Felix Fietkau
db6bb5c6c1 mt76: include linux/module.h in files using MODULE_*
Fix source files using MODULE_* macros without including linux/module.h

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:10 +02:00
Lorenzo Bianconi
1f4db1fd5c mt76x0: phy: introduce mt76x0_phy_set_txpower routine
Add mt76x0_phy_set_txpower routine in order to configure
base and per rate tx power gain. Moreover take into account
txpower_conf in order to limit the tx power gain according to
the bound provided by mac80211

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:09 +02:00
Lorenzo Bianconi
6987c5b5de mt76x0: use shared debugfs implementation
Use mt76 shared debugfs implementation and remove duplicated code
in mt76x0 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:08 +02:00
Lorenzo Bianconi
f2a2e819d6 mt76x0: remove eeprom dependency from mt76x0_get_power_info
In order to unify eeprom parsing between mt76x0 and mt76x2 drivers,
remove eeprom pointer dependency from mt76x0_get_power_info routine.
Remove mt76x0_eeprom_params since it is now an empty structure

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:07 +02:00
Lorenzo Bianconi
b37bbc8c82 mt76x0: remove eeprom dependency from mt76x0_set_tx_power_per_rate
In order to unify eeprom parsing between mt76x0 and mt76x2 drivers,
remove eeprom pointer dependency from mt76x0_set_tx_power_per_rate.
Moreover use mt76_rate_power to store power vs rate calibration data.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:06 +02:00
Lorenzo Bianconi
0050507c77 mt76x0: remove mt76x0_phy_set_tx_power and mt76x0_extra_power_over_mac
Remove mt76x0_extra_power_over_mac and mt76x0_phy_set_tx_power routines
since they are not actually used and tx power handling will be unified
with mt76x2 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:04 +02:00
Lorenzo Bianconi
02a4251d44 mt76: move mt76x02_rate_power_val in mt76x02-lib module
Move mt76x02_rate_power_val and mt76x2_sign_extend_optional utility
routines in mt76x02_eeprom.h in order to reuse them in mt76x0 eeprom
parsing

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:03 +02:00
Lorenzo Bianconi
c36a3cc5a5 mt76: move rate_txpower handler in mt76 debugfs
Move rate_txpower handler in mt76 debugfs in order to be reused
in mt76x0 driver and remove duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:02 +02:00
Lorenzo Bianconi
b9f192b8be mt76: add mt76x02_phy_set_txpower utility routine
Add mt76x02_phy_set_txpower utility routine in mt76x02_phy.c
in order to be reused in mt76x0 tx power management code.
Moreover move following routines in mt76x02-lib module:
- mt76x02_tx_power_mask
- mt76x02_get_max_rate_power
- mt76x02_limit_rate_power
- mt76x02_add_rate_power_offset

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:01 +02:00
Lorenzo Bianconi
b6862effdc mt76: move mt76_rate_power in mt76_dev
Move mt76_rate_power data structure from mt76x2_dev to mt76_dev in order
to share it with mt76x0 driver. Moreover move txpower_conf and
txpower_cur in mt76_dev

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:34:00 +02:00
Stanislaw Gruszka
2cf5ac311a mt76: fix return value of mt76x02_wait_for_mac
We need to return bool value in mt76x02_wait_for_mac.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 2735a6dd7d ("mt76: unify wait_for_mac")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:59 +02:00
Lorenzo Bianconi
09dbcd8bb4 mt76: usb: remove WARN_ON in mt76u_get_rx_entry_len
Remove not useful WARN_ON macros in mt76u_get_rx_entry_len routine
since corrupted frames should just be silently discarded

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:58 +02:00
Lorenzo Bianconi
deb9350c5e mt76: move mt76x2_tssi_enabled in mt76x02_eeprom.h
Move mt76x2_tssi_enabled and mt76x02_temp_tx_alc_enabled in
mt76x02_eeprom.h in order to be reused in mt76x0 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:57 +02:00
Lorenzo Bianconi
3d66939a07 mt76x0: unify parse hw capabilities
Unify parse hw capabilities with mt76x2 driver using
mt76x02_eeprom_parse_hw_cap utility routine available
in mt76x02-lib module

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:56 +02:00
Lorenzo Bianconi
63cf8d1208 mt76: move mt76x02_eeprom_parse_hw_cap in mt76x02-lib module
Move mt76x02_eeprom_parse_hw_cap utility routine in mt76x02-lib
module in order to be reused in mt76x0 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:54 +02:00
Lorenzo Bianconi
77d0f46564 mt76x0: unify freq offset parsing
Unify frequency offset parsing with mt76x2 driver using
eeprom utility routines available in mt76x02-lib module

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:53 +02:00
Lorenzo Bianconi
2c0db839b4 mt76x0: unify temperature offset parsing
Unify temperature offset parsing with mt76x2 driver using
eeprom utility routines available in mt76x02-lib module

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:52 +02:00
Lorenzo Bianconi
564d7f0acc mt76x0: unify rssi_offset parsing
Unify rssi_offset parsing with mt76x2 driver using eeprom utility
routines available in mt76x02-lib module

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:51 +02:00
Lorenzo Bianconi
2daa67588f mt76x0: unify lna_gain parsing
Unify lna gain parsing with mt76x2 driver using eeprom utility
routines available in mt76x02-lib module

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:50 +02:00
Lorenzo Bianconi
e59ad99b04 mt76: add mt76x02_get_rx_gain and mt76x02_get_lna_gain utility routines
Add mt76x02_get_rx_gain and mt76x02_get_lna_gain utility routines
for rx gain parsing. mt76x02_get_rx_gain and mt76x02_get_lna_gain
will be reused for eeprom parsing in mt76x0 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:49 +02:00
Lorenzo Bianconi
1137847ada mt76x0: remove mt76x0_set_country_reg routine
Remove mt76x0_set_country_reg routine for the moment
since it is partial and it is not actually used

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:48 +02:00
Lorenzo Bianconi
443569a534 mt76: move mt76x2_ext_pa_enabled routine in mt76x02_eeprom.c
Move mt76x2_ext_pa_enabled utility routine in mt76x02_eeprom.c
and remove duplicated code. This is a preliminary patch to
unify eeprom code between mt76x2 and mt76x0 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:47 +02:00
Lorenzo Bianconi
bd724b8f62 mt76: move mt76x2_get_efuse_data in mt76x02-lib module
Move mt76x2_efuse_read and mt76x2_get_efuse_data in mt76x02_eeprom.c
in order to be reused in mt76x0 driver for eeprom parsing

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:46 +02:00
Lorenzo Bianconi
89a8607c49 mt76: move mt76x02_mac_setaddr in mt76x02-lib module
Move mt76x02_mac_setaddr utility routine in mt76x02-lib
module and remove duplicated code. This is a preliminary patch
to unify eeprom code between mt76x2 and mt76x0 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:44 +02:00
Lorenzo Bianconi
b27823a774 mt76: move mt76x2_eeprom_get in mt76x02_eeprom.h
Move mt76x2_eeprom_get utility routine in mt76x02_eeprom.h since
it will be used to parse mt76x0 eeprom in order to unify eeprom
support between mt76x2 and mt76x0 drivers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:43 +02:00
Lorenzo Bianconi
86c71d3dee mt76: move eeprom utility routines in mt76x02_eeprom.h
Move shared eeprom utility routines in mt76x02_eeprom.h and
remove duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:42 +02:00
Lorenzo Bianconi
eef40d209a mt76: move common eeprom definitions in mt76x02-lib module
Move mt76x2 and mt76x0 common definitions in mt76x02_eeprom.h
and remove duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:41 +02:00
Felix Fietkau
7c4b446c59 mt76: add stbc entries to mt76_rate_power
Add stbc tx power eeprom parsing support for mt76x2 driver.
When writing power entries, make a distinction between rates that are
read from the same EEPROM value, but have separate register entries.

No effect on runtime behavior, but preparation for unification with mt76x0
and for placing restrictions on individual rate power limits

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:40 +02:00
Lorenzo Bianconi
8f410a8bfd mt76: move seq_put_array in mt76-core module
Move seq_put_array utility routine in mt76-core module
in order to be reused in mt76x0 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:38 +02:00
Lorenzo Bianconi
db2803bbda mt76x0: pci: add fw uploading routine
Add pci load firmware routine. Move some shared mcu definitions
in mt76x02_mcu.h

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:37 +02:00
Lorenzo Bianconi
9b1140bdc6 mt76x0: pci: add mt7650 PCI ID
Add mt7650 PCI id found on ASUS rt-51ac to pci_device_id table

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:36 +02:00
Lorenzo Bianconi
60b6645ef1 mt76x2: fix tx power configuration for VHT mcs 9
Fix tx power configuration for VHT 1SS/STBC mcs 9 since
in MT_TX_PWR_CFG_{8,9} mcs 8,9 bits are GENMASK(21,16) and
GENMASK(29,24) while GENMASK(15,6) are marked as reserved

Fixes: 7bc04215a6 ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01 12:33:35 +02:00
Lorenzo Bianconi
bf3741ada3 mt76x0: usb: remove mt76_fw definition
Remove mt76_fw dependency from mt76x0u_upload_firmware routine since
it does not define firmware layout properly. Moreover use mt76_poll_msec
utility routine to check if the fw is properly running

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:49 +02:00
Lorenzo Bianconi
196e978ca1 mt76x0: remove unused usb header file
Remove unused usb header file and move mt76x0 firmware definition
in usb.c

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:47 +02:00
Lorenzo Bianconi
280415714c mt76x0: remove mcu source file
Remove mcu.c source file since it contains just 'one-line' function
that is shared between PCI and USB code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:46 +02:00
Stanislaw Gruszka
576ecf6538 mt76x0: usb: move firmware loading to usb.c
Firmware loading is usb specific, move it to usb.c file.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:45 +02:00
Felix Fietkau
c12128ce44 mt76: use a per rx queue page fragment cache
Using the NAPI or netdev frag cache along with other drivers can lead to
32 KiB pages being held for a long time, despite only being used for
very few page fragments.

This can happen if the driver grabs one or two fragments for rx ring
refill, while other drivers use (and free up) the remaining fragments.
The 32 KiB higher-order page can only be freed once all users have freed
their fragments.

Depending on the traffic patterns, this can waste a lot of memory and
look a lot like a memory leak.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:44 +02:00
Lorenzo Bianconi
8842d485cb mt76x2: move mt76x2_phy_tssi_compensate in mt76x2-common module
Move mt76x2_phy_tssi_compensate routine in mt76x2-common module
since it is shared between mt76x2 and mt76x2u drivers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:42 +02:00
Lorenzo Bianconi
edaa580bc8 mt76: move shared mcu_calibrate routine in mt76x02-lib module
Move mcu_calibrate routine in mt76x02-lib module since it is
shared between USB and PCI code. Moreover remove duplicated
code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:41 +02:00
Lorenzo Bianconi
bc36690172 mt76x2: move mt76x2 mcu shared code in mt76x2_mcu_common.c
Move shared mt76x2 {pcie/usb} mcu shared code in a common file
and remove duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:40 +02:00
Lorenzo Bianconi
36fd09dd0f mt76: move mt76{0,2} mcu shared code in mt76x02_mcu.c
Move shared mt76x2/mt76x0 mcu shared code in a common file
and remove duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:39 +02:00
Lorenzo Bianconi
79394f4080 mt76: unify firmware header between mt76x0 and mt76x2
Move mt76x2_fw_header definition in mt76x02_mcu.h and remove
duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:38 +02:00
Lorenzo Bianconi
8cff12371b mt76x2: use common helpers for mcu_alloc_msg()/mcu_send_msg()
Use mcu common helpers instead of mt76x2 specific routines for
mcu_alloc_msg()/mcu_send_msg(). This is a preliminary patch to
unify mt76e and mt76u mcu code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:37 +02:00
Lorenzo Bianconi
0ed821bbbb mt76x2: use mt76_dev instead of mt76x2_dev in mt76x2_mcu_msg_send
Use mt76_dev data structure instead of mt76x2_dev one in mt76x2_mcu_msg_send
and mt76x2_mcu_get_response routines. Moreover add wait_resp parameter to
mt76x2_mcu_msg_send signature. This is a preliminary patch in order to unify
mcu_msg_alloc()/mcu_msg_send() between pcie and usb code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:35 +02:00
Lorenzo Bianconi
27db1ad10f mt76: move __iomem regs in mt76_mmio
Move __iomem regs pointer in mt76_mmio data structure

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:34 +02:00
Lorenzo Bianconi
f7bbb80f22 mt76: introduce mmio data structure in mt76_dev
Introduce mt76_mmio data structure in mt76_dev and
move mt76x2_mcu in mt76_mmio. This is a preliminary
patch to unify mcu code between mt76x02{e,u} drivers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:33 +02:00
Lorenzo Bianconi
8db5ec77de mt76x2: remove leftover mt76u_buf data structure in mt76x2_mcu
Remove unused usb buffer in mt76x2_mcu data structure

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:32 +02:00
Lorenzo Bianconi
d5c4261357 mt76x2: use mt76_dev instead of mt76x2_dev in mt76x2_tx_queue_mcu
Use mt76_dev data structure instead of mt76x2_dev one in
mt76x2_tx_queue_mcu routine. This is a preliminary patch
to share mcu code between mt76x2e and mt76x0e

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:31 +02:00
Lorenzo Bianconi
8799b624fe mt76: usb: remove skb check in mt76x{0,2}u mcu routines
Remove mt76_mcu_msg_alloc return value check since it is already
evaluated in __mt76x02u_mcu_send_msg

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:29 +02:00
Stanislaw Gruszka
331419b2ce mt76x0: remove mt76x0_burst_write_regs()
We don't need to use custom burst write regs via MCU, we can use
generic mt76_wr_copy() for the same purpose.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:28 +02:00
Stanislaw Gruszka
fd0c6e189d mt76x0: remove unused mt76x0_burst_read_regs
mt76x0_burst_read_regs is not used, but keep it for eventual use. Since
we have this function now in the driver git history, we can remove it and
eventually revert this commit it the function will be needed.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:27 +02:00
Lorenzo Bianconi
6d6631fd78 mt76x02: add static qualifier to mt76x02_remove_dma_hdr
Add static qualifier to mt76x02_remove_dma_hdr routine and
do not export the symbol since it is only used in mt76x02_util.c

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:26 +02:00
Lorenzo Bianconi
6181bf2a11 mt76x02: move TXD/RXD/MCU definitions in mt76x02_dma.h
Introduce mt76x02_dma.h header file to contain mt76x02 dma
related definitions

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:25 +02:00
Lorenzo Bianconi
c2db13ac7b mt76: usb: move mt76u_skb_dma_info in mt76x02_usb_core.c
Move mt76u_skb_dma_info routine in mt76x02-usb module and rename it in
mt76x02u_skb_dma_info. Moreover move mt76x02u_set_txinfo in
mt76x02_usb_core.c. This is a preliminary patch to move MT_TXD_INFO,
MT_MCU_MSG and MT_RX_FCE_INFO defs in mt76x02-lib module since other
chipsets (e.g. mt7603) use different dma definitions

Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:24 +02:00
Lorenzo Bianconi
905db74701 mt76: usb: move mt76x02 mcu code in mt76x02-usb module
Introduce mt76x02_usb_mcu.c in order to contain mt76x02u mcu related
code. Add mt76x02-usb module as a container for mt76x02 usb code.
This is a preliminary patch to move MT_TXD_INFO, MT_MCU_MSG and
MT_RX_FCE_INFO defs in mt76x02-lib module since other chipsets (e.g.
mt7603) use different dma definitions

Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:23 +02:00
Lorenzo Bianconi
1750715726 mt76: usb: use common helpers for mcu_alloc_msg()/mcu_send_msg()
Use mcu common helpers instead of usb specific routines.
Add static qualifier to the following functions:
- mt76u_mcu_msg_alloc
- __mt76u_mcu_send_msg
- mt76u_mcu_send_msg
- mt76u_mcu_wr_rp
- mt76u_mcu_rd_rp
- mt76u_wr_rp
- mt76u_rd_rp
This is a preliminary patch to move mt76x02 usb mcu code in
mt76x02-usb module

Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:21 +02:00
Stanislaw Gruszka
6da5a29116 mt76: add rd_rp and wr_rp to bus_ops/mcu_ops
Add callbacks for reading and writing reg pairs tables.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:20 +02:00
Stanislaw Gruszka
f1638c7cd6 mt76: add usb implementation of {wr,rd}_rp
Add USB implementation for read and write reg pair routines.
The actual implementation can use mcu related routines according to
MCU state

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:19 +02:00
Lorenzo Bianconi
db0f04f324 mt76: add mt76_mcu_ops data structure for mcu related pointers
Introduce mt76_mcu_ops data structure to contain mcu related function
pointers. This is a preliminary patch to move mt76x02 usb mcu code in
mt76x02-usb module

Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:18 +02:00
Lorenzo Bianconi
dce9dc8d57 mt76: move mt76x0 and mt76x2 mcu shared defs in mt76x02_mcu.h
Move mt76x0 and mt76x2 mcu shared definition in mt76x02_mcu.h
and remove duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:17 +02:00
Lorenzo Bianconi
473f0a763d mt76x0: run vco calibration for each channel configuration
According to vendor sdk, vco calibration has to be executed
for each channel configuration whereas mcu calibration has to be
performed during channel scanning. This patch fixes the mt76x0
monitor mode issue since in that configuration vco calibration
was never executed

Fixes: 10de7a8b4a ("mt76x0: phy files")
Tested-by: Sid Hayn <sidhayn@gmail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:16 +02:00
Stanislaw Gruszka
835123b7e1 mt76x0: make device allocation bus neutral
Remove some USB specific code form mt76x0_alloc_device.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:14 +02:00
Stanislaw Gruszka
6d1bced149 mt76x0: remove some usb specific code from mt76x0_register_device
Initial effort to make mt76x0_register_device bus neutral.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:13 +02:00
Stanislaw Gruszka
c0eb79ab33 mt76x0: remove unused mt76x0_wcid
We do not use mt76x0_wcid any longer.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:12 +02:00
Stanislaw Gruszka
c2a4d9fbab mt76x0: inital split between pci and usb
For now pci driver can read ASIC version from the device :-)

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:11 +02:00
Lorenzo Bianconi
1bee323a85 mt76x0: use mt76_register_device for device registration
Use mt76_register_device routine for device registration.
mt76_register_device allows to enable VHT support on 5GHz band.
Overwrite unsupported vht features with mt76x0_vht_cap_mask routine.
Remove macaddr field of mt76x0_dev data structure and
use the mt76_dev one. Moreover remove following unused routines:
- mt76_init_sband
- mt76_init_sband_2g
- mt76_init_sband_5g

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:10 +02:00
Lorenzo Bianconi
540399d5fb mt76x0: remove has_{2,5}ghz fields of mt76x0_eeprom_params
Remove has_2ghz/has_5ghz fields of mt76x0_eeprom_params data
structure and use mt76_dev ones. This is a preliminary patch
to use shared routines for device allocation

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:09 +02:00
Lorenzo Bianconi
6f15ed16f1 mt76x0: do not free/alloc buffers during suspend/resume
Do not free/alloc {tx,rx} buffers during suspend/resume phases
but use the ones previously allocated during hw probe.
Move {tx,rx}/mcu buffers allocation from mt76x0_init_hardware routine
to mt76x0_register_device

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:07 +02:00
Lorenzo Bianconi
e30a655ef1 mt76x0: move mt76x0_init_hardware in mt76x0_register_device
Move mt76x0_init_hardware routine in mt76x0_register_device
during hw probe. This is a preliminary patch to avoid {tx/rx}
buffer allocation during resume/suspend

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:06 +02:00
Lorenzo Bianconi
b680d7fbfb mt76x0: move stop related routines in mt76x0_mac_stop
Move tear-down routines in mt76x0_mac_stop function.
mt76x0_mac_stop routines will be reused in mt76x0_suspend

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:05 +02:00
Lorenzo Bianconi
cb722aeddc mt76x0: fix memory leak during hw probe
Fix memory leak during hw probe if mt76x0_register_device fails
since MT76_STATE_INITIALIZED has not set yet and mt76x0_cleanup
does not free tx/rx queues and mcu buffers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:04 +02:00
Lorenzo Bianconi
d1b6eec235 mt76x0: alloc mcu buffers first in mt76x0_mcu_cmd_init
swap mt76u_mcu_init_rx and mt76x0_mcu_function_select in
mt76x0_mcu_cmd_init routine in order to allocate mcu buffers
first and then send mcu commands

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:03 +02:00
Lorenzo Bianconi
58b5eb8c44 mt76: move mt76 rate definitions in mt76x02-lib module
Move mt76x2_rate definition in mt76x02-lib module and rename it in
mt76x02_rates in order to be reused in mt76x0 driver.
Moreover remove unused mt76_rate definition

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:02 +02:00
Lorenzo Bianconi
7c7b13941e mt76x0: remove mt76x0_stop_hardware routine
Since it is actually used in a single place and it just
runs mt76x0_chip_onoff routine, remove mt76x0_stop_hardware
and use mt76x0_chip_onoff directly

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:31:00 +02:00
Lorenzo Bianconi
23ea0e7efb mt76: remove unused MT76_MORE_STATS state
Remove no longer used hw state

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:30:59 +02:00
Stanislaw Gruszka
242516caab mt76x0: trim rx skb to proper length
We need to truncate skb to proper length. This fix below message:

wlan0: associating with AP with corrupt beacon and probe response

Fixes: 9d87d9fad47e ("mt76x0: unify tx/rx datapath with mt76x2u driver")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:30:55 +02:00
Lorenzo Bianconi
0ae976a11b mt76x0: init hw capabilities
Enable hw capabilities supported by mt76-usb layer
- fast_xmit
- tx/rx amsdu
- MFP
- non-linear tx skbs

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:55 +02:00
Lorenzo Bianconi
67f5e7a794 mt76x0: enable per-sta tx queueing
Initialize wake_tx_queue function pointer in ieee80211_ops
in order to enable per-sta tx queueing. Moreover set driver
private txq size

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:54 +02:00
Lorenzo Bianconi
7cbe4c7607 mt76x0: remove unused stat_work
Remove unused definition of stat_work delayed_work definition and
related flush/cancel routines

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:53 +02:00
Lorenzo Bianconi
c1b6325d51 mt76x0: remove unused endpoint definitions
remove unused usb endpoint definitions since mt76x0
uses mt76-usb ones. Moreover remove unused usb_ctrl mutex

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:51 +02:00
Lorenzo Bianconi
f79fdf7652 mt76x0: remove unused mt76x0_tx_status routine
Remove no longer used mt76x0_tx_status routine since
mt76x0 driver uses mt76-usb utility routines to report tx-feedbacks

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:50 +02:00
Lorenzo Bianconi
6d449d12a0 mt76x0: remove unused {tx/rx}_queue definitions
Remove unused tx_queue and rx_queue definitions since
now mt76x0 driver uses mt76-usb {tx/rx}_queues

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:49 +02:00
Lorenzo Bianconi
4220878b6e mt76x0: remove unused stat work_queue
Remove unused tx_status workqueue since now tx feedbacks are
processed by mt76-usb layer

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:48 +02:00
Lorenzo Bianconi
37d363665b mt76x0: remove unused dma.c source file
Remove unused dma.c source file since dma related routines are no
longer used

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:47 +02:00
Lorenzo Bianconi
c668746408 mt76x0: set max fragments size
Set maximum number of tx fragments according to usb controller
features

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:45 +02:00
Lorenzo Bianconi
1baa6e3a9b mt76x0: stop stat workqueue at hw stop
Cancel tx status workqueue during vif teardown

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:44 +02:00
Lorenzo Bianconi
30ec915269 mt76x0: unify tx/rx datapath with mt76x2u driver
Use mt76/mt76-usb shared routine for tx/rx datapath.
Initialize mt76-usb tx/rx queues in mt76x0_init_hardware and
deallocate them in mt76x0_cleanup routine.
Moreover remove data padding in mt76_mac_process_rx routine.
Furthermore remove unused skb2q routine

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:43 +02:00
Lorenzo Bianconi
95e507d2f3 mt76x0: use mt76_alloc_device for device allocation
Use mt76_alloc_device utility routine for mt76x0_dev/mt76_dev
allocation

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:42 +02:00
Lorenzo Bianconi
f2653a4ee3 mt76x0: init mt76_driver_ops callbacks
Init mt76_driver_ops callbacks in mt76x0_alloc_device.
mt76_driver_ops callbacks will be used by mt76-usb module

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:40 +02:00
Lorenzo Bianconi
4fcedad49c mt76x0: add mt76x0_queue_rx_skb routine
Introduce mt76x0_queue_rx_skb routine as mt76x0 driver
frame rx handler. mt76x0_queue_rx_skb will be run by mt76-usb layer
rx datapath

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:39 +02:00
Lorenzo Bianconi
82aedcef17 mt76x0: simplify mt76_mac_process_rx signature
Remove data pointer from mt76_mac_process_rx routine signature

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:38 +02:00
Lorenzo Bianconi
a4986909ec mt76x0: mark device as running in mt76x0_start
Set MT76_STATE_RUNNING flag in mt76x0_start routine and
clear it in mt76x0_stop one

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:37 +02:00
Lorenzo Bianconi
7fd3c60ccb mt76x0: disable usb rx bulk aggregation
In order to use zero-copying, disable usb rx bulk aggregation

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:36 +02:00
Lorenzo Bianconi
8f6c23a94e mt76: move mt76x2u_tx_status_data in mt76x02-lib module
Move mt76x2u_tx_status_data routine in mt76x02-lib module and rename it
in mt76x02_tx_status_data in order to be reused in mt76x0 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:34 +02:00
Lorenzo Bianconi
8c6adb7862 mt76x0: introduce mt76x0_tx_prepare_skb routine
Add mt76x0_tx_prepare_skb routine as tx txwi handler.
mt76x0_tx_prepare_skb will be used by mt76-usb layer

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:33 +02:00
Lorenzo Bianconi
41868f984e mt76: move mt76x2u_set_txinfo in mt76x02-lib module
Move mt76x2u_set_txinfo routine in mt76x02-lib module and rename it in
mt76x02_set_txinfo in order to be reused in mt76x0 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:32 +02:00
Lorenzo Bianconi
2251dd5d46 mt76: move mt76_qsel definition in dma.h
Move mt76_qsel definition in dma.h in order to be reused in mt76x0
driver. Moreover remove empty mt76x2_dma.h header file

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:31 +02:00
Lorenzo Bianconi
f847e45a2d mt76: move mt76x2u_tx_complete_skb in mt76x02-lib moudule
Move mt76x2u_tx_complete_skb routine in mt76x02-lib module
and rename it in mt76x02_tx_complete_skb in order to be reused
in mt76x0 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:30 +02:00
Lorenzo Bianconi
b38b8207bf mt76: move mt76x2u_remove_dma_hdr in mt76x02-lib module
Move mt76x2u_remove_dma_hdr in mt76x02-lib module and rename it in
mt76x02_remove_dma_hdr. Moreover use mt76x02_remove_hdr_pad routine
in mt76x02_remove_dma_hdr function.
Furthermore remove mt76x0_tx_skb_remove_dma_overhead routine

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:29 +02:00
Lorenzo Bianconi
2a45ad31af mt76: move mt76x2_tx_complete routine in mt76x02-lib module
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: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:27 +02:00
Lorenzo Bianconi
5a69931cb7 mt76x2: change mt76x2_tx_complete routine signature
Use mt76_dev instead of mt76x2_dev in mt76x2_tx_complete signature
in order to be reused in mt76x0 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:26 +02:00
Stanislaw Gruszka
0b7da31127 mt76: partially unify filling txwi fields
Merge code filing txwi fields the same way on mt76x0 and mt76x2.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:25 +02:00
Stanislaw Gruszka
0e59cba856 mt76: unify {insert/remove}_hdr_pad
Merge insert/remove _hdr_pad from mt76x0 and mt76x2.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:24 +02:00
Stanislaw Gruszka
493703aa9e mt76x0: reserve enough space in mac80211
Allocate skg with enough headroom by mac80211 , this eliminate need
to add extra skb headroom by the mt76x0 driver.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:23 +02:00
Stanislaw Gruszka
74ff45393b mt76: unify mac_process_rate
Merge mac_process_rate from mt76x0 and mt76x2.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:21 +02:00
Stanislaw Gruszka
82e1dd0f39 mt76: use mt76_rx_status in mt76x0
Make rx status processing similar to mt76x2.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:20 +02:00
Stanislaw Gruszka
7c1f888126 mt76: unify send_tx_status and related helpers
Merge send_tx_status and helper functions from mt76x0 and mt76x2.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:19 +02:00
Stanislaw Gruszka
b490b1df9a mt76: unify load_tx_status
Unify load/fetch tx status from mt76x0 and mt76x2

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:18 +02:00
Stanislaw Gruszka
5944cd0286 mt76: unify txwi and rxwi structures
txwi and rxwi are the same for mt76x0 and mt76x2.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:17 +02:00
Stanislaw Gruszka
5327b5ea13 mt76: unify sta_rate_tbl_update and related helpers
Use common sta_rate_tbl_update on mt76x0 and mt76x2.
mt76x0 do not have support TPC (transmision power control) implmented,
msta->wcid.max_txpwr_adj is only set for mt76x2.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:16 +02:00
Stanislaw Gruszka
212926eb44 mt76: unify add_interface
Make common add_interface for mt76x0 and mt76x2e. This change behavior
for mt76x0, but it should work with the new implementation.

mt76x2u has different implementation. Maybe it can use common one,
but for now leave it as is.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:15 +02:00
Stanislaw Gruszka
0cd47bae22 mt76: unify remove_interface
Use common remove_interface callback in mt76x0 and mt76x2.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:13 +02:00
Stanislaw Gruszka
900c0f4746 mt76x0: remove vif_mask
Make remove_interface more similar to mt76x2.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:12 +02:00
Stanislaw Gruszka
10337263dc mt76: unify conf_tx
Use one conf_tx implementation in mt76x0 and mt76x2. Note this change
conf_tx for mt76x0, but it should work with mt76x2 version.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:11 +02:00
Stanislaw Gruszka
1d0496c63f mt76: unify AC to hw queue mapping
Use the same AC to hardware queue mappings for all subdrivers.
Note: this change BK and BE mappings for USB drivers.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:10 +02:00
Stanislaw Gruszka
436d9586af mt76x0: remove empty sta_notify
Remove empty implementation of sta_notify.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:09 +02:00
Stanislaw Gruszka
60c26859e8 mt76: unify set_key
Merge mt76x0 and mt76x2 set_key mac80211 callback.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:08 +02:00
Stanislaw Gruszka
22c575c4f1 mt76: unify ampdu_action
Use mt76x2_ampdu_action as common function, mt76x0 ampdu_action was
diffrent, but mt76x2 version should work for this driver as well.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:07 +02:00
Stanislaw Gruszka
cab12953ec mt76: pratially unify add_interface
Create common mt76x02_vif_init function and use int on drivers
add_interface callback.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:05 +02:00
Stanislaw Gruszka
624400e4cd mt76: unify sta_add / sta_remove
Merge mt76x0 and mt76x0 sta add/remove callback. We drop
mt76x0_mac_set_ampdu_factor() for now. Need to consider to add
it to common code, but mt76x2 don't do it so perhaps mt76x0 don't
need it as well.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:29:04 +02:00
Stanislaw Gruszka
36404c065a mt76: move wcid fields to common mt76_dev struct
All current MT devices including new MT7603 type chips support 128
WCIDs, we can unify wcid data in common mt76_dev structure.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19 12:28:45 +02:00
Kalle Valo
43e2f29041 Merge wireless-drivers into wireless-drivers-next
Solve the conflict in main.c early on as there will be a lot more mt76 patches
in the queue.
2018-09-17 17:41:02 +03:00
Stanislaw Gruszka
3341ba9f0f mt76x0: fix remove_interface
We wrongly use wcid_mask instead of vif_mask. This creates problems
when the interface is removed more than 8 times, for example with iw:

iw dev <devname> interface add <name> type <type>
iw dev <name> del

This caused 'ifconfig up' to fail with error:

SIOCSIFFLAGS: No space left on device

Fixes: 95e444098a ("mt76x0: main file")
Reported-and-tested-by: Sid Hayn <sidhayn@gmail.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-17 17:10:25 +03:00
Kristian Evensen
b37b30afc2 mt76: Enable NL80211_EXT_FEATURE_CQM_RSSI_LIST
Enable the use of CQM_RSSI_LIST with mt76-devices. The change has been
tested with the mt7602, mt7603 and mt7621 PCI wifi-cards. I passed a
list of RSSI thresholds to the driver, and when disconnecting/connecting
the antenna(s) I got an event each time the RSSI went above/below a
threshold.

While I have not been able to test the change with any of the mt76
USB-devices (no access to a device), the RX RSSI management code is
shared between the two device types. Thus, CQM should also work with the
mt76 USB-devices.

Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:14:02 +03:00
Lorenzo Bianconi
01b302cd58 mt76x0: remove unused routines for usb_buff alloc/free
Remove the following unused routines for usb buffer
allocation/free/submit:
- mt76x0_usb_alloc_buf
- mt76x0_usb_free_buf
- mt76x0_usb_submit_buf

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:09:34 +03:00
Lorenzo Bianconi
a0b65ca60e mt76x0: use mt76u_mcu_fw_send_data for fw uploading
Use mt76u_mcu_fw_send_data utility routine for firmware uploading and
remove unused __mt76x0_dma_fw/mt76x0_dma_fw functions

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:09:30 +03:00
Lorenzo Bianconi
0e3612e06b mt76x0: remove unused mt76x0_mcu structure
Remove no longer used mt76x0_mcu data structure

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:09:26 +03:00
Lorenzo Bianconi
6f4796b706 mt76x0: use mt76u_mcu_send_msg utility routine to send fw cmds
Use mt76u_mcu_send_msg/__mt76u_mcu_send_msg utility routines to
send commands to usb mcu. Remove following unused routines:
- mt76x0_mcu_wait_resp
- __mt76x0_mcu_msg_send
- mt76x0_mcu_msg_send
- mt76x0_dma_skb_wrap_cmd
- trace_mt_mcu_msg_send_cs
- mt76x0_mcu_cmd_deinit

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:09:23 +03:00
Lorenzo Bianconi
876d3d02ee mt76x0: remove unused mt76x0_wait_asic_ready routine
Delete core.c source file since, removing mt76x0_wait_asic_ready
routine, it is no longer needed

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:09:19 +03:00
Lorenzo Bianconi
172222cff0 mt76x0: remove mt76x0_vendor_request routine
Remove mt76x0_vendor_request routine and use
mt76u_vendor_request utility function from mt76-usb
layer in mt76x0_upload_firmware

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:09:14 +03:00
Lorenzo Bianconi
73d411e2d4 mt76x0: remove mt76x0_complete_urb routine
Remove mt76x0_complete_urb routine and use mt76u_mcu_complete_urb utility
function as usb mcu completion handler

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:09:13 +03:00
Lorenzo Bianconi
ad27c4ae0b mt76x0: use shared mt76 usb mcu completion
Use mt76 usb shared completion data structure in
mt76x0_mcu_wait_resp routine and remove mt76x0
private one

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:09:07 +03:00
Lorenzo Bianconi
84740d5dc6 mt76x0: remove mt76x0_mcu_msg_alloc routine
Remove mt76x0_mcu_msg_alloc duplicated routine and use mt76u_mcu_msg_alloc
utility function for usb mcu message allocation

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:09:03 +03:00
Lorenzo Bianconi
72750efddb mt76x0: remove mt76x0_vendor_single_wr routine
Remove mt76x0_vendor_single_wr routine and use mt76u_single_wr
utility function for mcu firmware loading

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:08:59 +03:00
Lorenzo Bianconi
e9fa647a0a mt76x0: remove mt76x0_vendor_reset routine
Remove mt76x0_vendor_reset duplicated routine and use mt76u_mcu_fw_reset
utility function for mcu fw reset

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:08:56 +03:00
Lorenzo Bianconi
795dbf0fd2 mt76x0: use mt76u_init for bus initialization
Use mt76u_init utility routine for usb initialization.
Moreover remove following unused routines:
- mt76x0_rr
- mt76x0_wr
- mt76x0_rmw
- mt76x0_wr_copy
- mt76x0_assign_pipes

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:08:50 +03:00
Lorenzo Bianconi
851ab66e29 mt76: add multiple regs read support to usb_mcu layer
Introduce multiple regs read support to mcu layer in mt76-usb module.
Multiple regs read will be reused by mt76x0 driver in usb mcu layer
unification between mt76x0 and mt76x2u drivers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:08:49 +03:00
Lorenzo Bianconi
288d600a88 mt76: move mt76x2u_mcu_deinit routine in mt76-usb module
Move mt76x2u_mcu_deinit routine in usb_mcu layer in order to
be reused by mt76x0 driver in usb mcu layer unification between
mt76x0 and mt76x2u drivers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:08:46 +03:00
Lorenzo Bianconi
4c89ff2c74 mt76: split __mt76u_mcu_send_msg and mt76u_mcu_send_msg routines
Split __mt76u_mcu_send_msg and mt76u_mcu_send_msg in order to be reused
by mt76x0 driver in usb mcu layer unification between mt76x0 and
mt76x2u drivers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:08:42 +03:00
Lorenzo Bianconi
5090efa4a2 mt76: move mt76_reg_pair definition in mt76.h
Move common definition of mt76_reg_pair in mt76.h
and remove duplicated code in mt76x2_init_common.c

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:08:40 +03:00
Stanislaw Gruszka
16c8a792ea mt76x0: use mt76x02_sta and mt76x02_tx_status
Use common mt76x02_sta and mt76x02_tx_status structures in mt76x0 sub-driver.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:03:28 +03:00
Stanislaw Gruszka
78dae93fd8 mt76x0: initalize custom tx queues
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:03:24 +03:00
Stanislaw Gruszka
b2d91fb302 mt76: unify sta structure part 2
Second part of unifying mt76x02_sta structure between mt76x0 and mt76x2.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:03:21 +03:00
Stanislaw Gruszka
f5a7f126e5 mt76: unify sta structure part 1
First part of unifying mt76x02_sta structure between mt76x0 and mt76x2.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:03:17 +03:00
Stanislaw Gruszka
98ff26e5e2 mt76: unify mt76x02_vif struct
Private vif structures definitions are the same for mt76x2 and mt76x0.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:03:14 +03:00
Stanislaw Gruszka
459e237f14 mt76x0: use mt76_wcid_free in mt76x0
Use helper from util instead of custom code.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:03:09 +03:00
Stanislaw Gruszka
516ea2a2a9 mt76: use mac_wcid_set_drop in mt76x0
Move mt76x02_mac_wcid_set_drop to common code and use it in mt76x0.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:03:04 +03:00
Stanislaw Gruszka
32bb405fe2 mt76: unify mac_wcid_setup
Merge mt76x{0,2}_mac_wcid_setup into common code.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:03:01 +03:00
Stanislaw Gruszka
46436b5ef9 mt76: unify mac_wcid_set_key
Merge mt76x{0,2}_mac_wcid_set_key into common code.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:02:57 +03:00
Stanislaw Gruszka
047aed1c38 mt76: unify mac_shared_key_setup
Merge mt76x{0,2} mac_shared_key_setup into common code.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:02:55 +03:00
Stanislaw Gruszka
d413127359 mt76: add helpers for register access with mt76_dev struct
Add helpers for register access from common code.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:02:53 +03:00
Stanislaw Gruszka
c378f24734 mt76: unify mac_get_key_info
Merge mt76x{0,2} mac_get_key_info into new mt76x02_mac.c file.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:02:51 +03:00
Stanislaw Gruszka
108a4861ef mt76: create new mt76x02-lib module for common mt76x{0,2} code
Move rxfilter and mutex to common structure. Create mt76x02-lib.ko
for mt76x0 and mt76x2 common functions and create new unified
mt76x02_configure_filter() function there.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:02:47 +03:00
Stanislaw Gruszka
797ea24078 mt76: merge mt76x0/regs.h into mt76x02_regs.h
Add missed definitions for mt76x0 into mt76x02_regs.h. Remove
mt76x0/regs.h and fixup mt76x0 code to adjust to some diffrent
registers/fields names.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:02:44 +03:00
Stanislaw Gruszka
89e1b1bc07 mt76: rename mt76x2_regs.h
MAC registers are the same for mt76x0 and mt76x2. Rename mt76x2_regs.h
file to reflect that.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:02:41 +03:00
Stanislaw Gruszka
2735a6dd7d mt76: unify wait_for_mac
Create new mt76x02_mac.h for common mac functions of mt76x0 and mt76x2
and unity wait_for_mac for both drivers.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:02:39 +03:00
Lorenzo Bianconi
ac5d5b3f19 mt76: verify evt type in usb mcu response
Verify if evt field is set to EVT_CMD_DONE in usb mcu
response messages. This is a preliminary patch for usb_mcu layer
unification between mt76x0u and mt76x2u driver.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-31 18:54:14 +03:00
Lorenzo Bianconi
9b2fd48d36 mt76x2u: run device cleanup routine if resume fails
Cleanup {tx,rx} and mcu queues if resume operation fails

Fixes: ee676cd501 ("mt76: add driver code for MT76x2u based devices")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-31 18:53:12 +03:00
Geert Uytterhoeven
81c8eccc24 mt76: Fix comparisons with invalid hardware key index
With gcc 4.1.2:

    drivers/net/wireless/mediatek/mt76/mt76x0/tx.c: In function ‘mt76x0_tx’:
    drivers/net/wireless/mediatek/mt76/mt76x0/tx.c:169: warning: comparison is always true due to limited range of data type
    drivers/net/wireless/mediatek/mt76/mt76x2_tx_common.c: In function ‘mt76x2_tx’:
    drivers/net/wireless/mediatek/mt76/mt76x2_tx_common.c:35: warning: comparison is always true due to limited range of data type

While assigning -1 to a u8 works fine, comparing with -1 does not work
as expected.

Fix this by comparing with 0xff, like is already done in some other
places.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-31 18:52:29 +03:00
Rosen Penev
62a25dc569 mt76x2u: Add support for Alfa AWUS036ACM
A 2x2 unit with a USB dock for optimal placement.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Acked-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-31 18:43:04 +03:00
Valdis Kletnieks
1ec49a2365 mt76: fix build for MediaTek MT7610U USB wireless dongle
The mt76x0 driver requires the mt76 core driver to actually function.
So add a 'select' to avoid embarrassing 'symbol unknown' errors
when attempting to modprobe it in a module tree that doesn't
include mt76.ko

Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-09 18:12:28 +03:00
Kees Cook
17ad18fd12 mt76x0: Remove VLA usage
Even with "const" variables, the compiler will generate warnings about
VLA usage. In the quest to remove all VLAs from the kernel[1], this uses
a #define instead of a const to do the array sizing.

[1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com

Fixes: e87b503951 ("mt76x0: eeprom files")
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-09 18:08:53 +03:00
Stanislaw Gruszka
1b622bd59e mt76x0: perform mt76x0_mac_set_ampdu_factor
Remove return added accidentally in mt76x0_mac_set_ampdu_factor.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: a774434981 ("mt76x0: mac files")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-09 18:08:06 +03:00
Stanislaw Gruszka
5dc5bf2899 mt76x0: correct type for eeprom gain value
Change type to u8 to allow sanity check agaist 0xff;

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: e87b503951 ("mt76x0: eeprom files")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-09 18:07:38 +03:00
Stanislaw Gruszka
e800a33313 mt76x0: rename trace symbols
Rename trace symbols that conflict with mt7601u and remove some
definitions that are not used.

Patch fixes build errors like this:
ld: drivers/net/wireless/mediatek/mt76/mt76x0/trace.o:(__tracepoints+0x0): multiple definition of `__tracepoint_set_shared_key'; drivers/net/wireless/mediatek/mt7601u/trace.o:(__tracepoints+0x0): first defined here

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 7b4859026c ("mt76x0: core files")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-04 09:06:15 +03:00
Stanislaw Gruszka
909da6e4b5 mt76x0: rename mt76_* functions
mt76_* functions conflicts with mt7601u driver what prevents to build
those drivers in the kernel or use both drivers modules at once.

Patch fixes build errors like this:
ld: drivers/net/wireless/mediatek/mt76/mt76x0/mac.o:(.opd+0x30): multiple definition of `mt76_mac_tx_rate_val'; drivers/net/wireless/mediatek/mt7601u/mac.o:(.opd+0x30): first defined here

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 7b4859026c ("mt76x0: core files")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-04 09:05:50 +03:00
Stanislaw Gruszka
a33ce21e2a mt76x0: load firmware from mediatek subdir
Firmware blob will be located in mediatek subdirectory. Add "u" suffix
to indicate this is USB device firmware.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:51:06 +03:00
Stanislaw Gruszka
369bbecdbb mt76x0: disable HW before probe
Disable HW before probe, otherwise after reboot we will fail
to initialize MCU.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:51:04 +03:00
Stanislaw Gruszka
52abb142ba mt76: Kconfig and Makefile for mt76x0 driver
Add Kconfig and Makefiles for mt76x0 driver. Now the driver
can be build.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:51:03 +03:00
Stanislaw Gruszka
87e022de33 mt76: add more states
Add states needed for mt76x0 driver.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:51:01 +03:00
Stanislaw Gruszka
95e444098a mt76x0: main file
Add main file of mt76x0 driver.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:51:00 +03:00
Stanislaw Gruszka
b4d4d06443 mt76x0: dma and tx files
Add dma and tx files of mt76x0 driver.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:50:58 +03:00
Stanislaw Gruszka
a79e463815 mt76x0: trace and debugfs files
Add trace and debugfs files of mt76x0 driver.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:50:56 +03:00
Stanislaw Gruszka
e87b503951 mt76x0: eeprom files
Add eeprom files of mt76x0 driver.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:50:54 +03:00
Stanislaw Gruszka
134b2d0d1f mt76x0: init files
Add init files of mt76x0 driver.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:50:51 +03:00
Stanislaw Gruszka
10de7a8b4a mt76x0: phy files
Add phy files of mt76x0 driver.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:50:50 +03:00
Stanislaw Gruszka
55b13a0474 mt76x0: mcu files
Add mcu files of mt76x0 driver.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:50:49 +03:00
Stanislaw Gruszka
ff69c75ee5 mt76x0: usb files
Add usb files of mt76x0 driver.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:50:46 +03:00
Stanislaw Gruszka
a774434981 mt76x0: mac files
Add mac files of mt76x0 driver.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:50:45 +03:00
Stanislaw Gruszka
7b4859026c mt76x0: core files
Core files of mt76x0 driver.

mt76x0 driver adds support for Mediatek MT7610U based
USB Wi-Fi dongles.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:50:44 +03:00
Lorenzo Bianconi
ee676cd501 mt76: add driver code for MT76x2u based devices
MT76x2u is a 2x2 USB 802.11ac chipset by MediaTek. This driver currently
support station mode

Tested-by: <cug_yangyuancong@hotmail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:48:17 +03:00
Lorenzo Bianconi
b40b15e152 mt76: add usb support to mt76 layer
This will be used by drivers for MT76x2u based devices

Tested-by: <cug_yangyuancong@hotmail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:48:16 +03:00
Lorenzo Bianconi
037804002b mt76: move mt76x2_debugfs in mt76-common module
Move mt76x2_debugfs code in mt76-common module since it is shared
between mt76x2 and mt76x2u

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:48:15 +03:00
Lorenzo Bianconi
5f0d10ceee mt76: add mt76x2_phy_common to mt76x2-common module
Move phy related code shared between mt76x2 and mt76x2u in
mt76x2-common module

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:48:14 +03:00
Lorenzo Bianconi
2de8c3eb7e mt76: add mt76x2_common to mt76x2-common module
Move core related code shared between mt76x2 and mt76x2u in
mt76x2-common module

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:48:11 +03:00
Lorenzo Bianconi
43930193a8 mt76: add mt76x2_init_common to mt76x2-common module
Move init related code shared between mt76x2 and mt76x2u in
mt76x2-common module

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:48:10 +03:00
Lorenzo Bianconi
b9c45e1c42 mt76: add mt76x2_mac_common to mt76x2-common module
Move mac related code shared between mt76x2 and mt76x2u in
mt76x2-common module

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:48:08 +03:00
Lorenzo Bianconi
9367a9c7f9 mt76: add mt76x2_tx_common to mt76x2-common module
Move tx related code shared between mt76x2 and mt76x2u in mt76x2-common
module

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:48:06 +03:00
Lorenzo Bianconi
d20ad58169 mt76: introduce mt76x2-common module
In order to remove usb dependency from pcie code, add mt76x2-common as
a container of shared code between mt76x2 and mt76x2u. Add eeprom code
to mt76x2-common module

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:48:04 +03:00
Lorenzo Bianconi
469d481886 mt76: introduce tx_queue_skb function pointer in mt76_bus_ops
Add tx_queue_skb function pointer in mt76_bus_ops since mt76x2u based
devices do not map mt76x2_txwi on dma buffers and it is not possible
to reuse mt76_dma_tx_queue_skb() routine to enqueue tx frames to
hw buffers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:48:02 +03:00
Lorenzo Bianconi
fcdd99ce72 mt76: rename mt76_tx_queue_skb in mt76_dma_tx_queue_skb
Move mt76_dma_tx_queue_skb routine in dma.c.
Remove static qualifier from mt76_get_txwi definition

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:48:01 +03:00
Lorenzo Bianconi
bbd89d9481 mt76x2: add buffer len to mt76x2_mac_write_txwi signature
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: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:47:59 +03:00
Lorenzo Bianconi
81e850ef26 mt76x2: add napi struct to mt76_rx_poll_complete/mt76_rx_complete signatures
in order to reuse mt76_rx_complete routine supporting mt76x2u based
devices add napi struct to mt76_rx_poll_complete and mt76_rx_complete
routine signatures and do not fetch it according to the rx queue index

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:47:57 +03:00
Lorenzo Bianconi
d3c94b4046 mt76x2: introduce mt76x2_mac_load_tx_status routine
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: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:47:56 +03:00
Lorenzo Bianconi
4681e0c79e mt76x2: move interface_modes definition in mt76x2_init
Move  wiphy interface_modes definition in mt76x2_init in order to
reuse mt76_register_device routine supporting mt76x2u based chipsets
since mt76x2u currently supports just sta mode

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:47:54 +03:00
Lorenzo Bianconi
15fdb7a07b mt76x2: introduce mt76x2_init_device routine
Add mt76x2_init_device routine in order to reuse common pcie/usb mac80211
initialization code supporting mt76x2u based device

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:47:52 +03:00
Lorenzo Bianconi
2edb2ae5e6 mt76x2: move utility routines in mt76x2.h
In order to reuse them supporting mt76x2u based devices, move
mt76x2_wait_for_mac, wait_for_wpdma and mt76x2_channel_silent in
mt76x2.h

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:47:50 +03:00
Lorenzo Bianconi
35ecee1f67 mt76x2: move mt76x2_fw_header and mt76x2_patch_header definitions in mcu.h
move mt76x2_fw_header and mt76x2_patch_header definitions in mcu.h in
order to reuse them in mt76x2u mcu related code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:47:49 +03:00
Lorenzo Bianconi
66fc44b71c mt76: move MT_TXD_INFO, MT_MCU_MSG and MT_RX_FCE_INFO defs in dma.h
Since MT_TXD_INFO, MT_MCU_MSG and MT_RX_FCE_INFO definitions are in
common between mt76x2u, mt76x2 and mt76x0u move them in dma.h in order
to reuse usb code supporting mt76x2u and mt76x0u based devices

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-02 21:47:48 +03:00
Lorenzo Bianconi
d0db2f7a02 mt76x2: fix CCK protection control frame rate
Use 11M as tx rate for CCK protection control frames

Fixes: 7bc04215a6 ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-30 17:32:36 +03:00
Lorenzo Bianconi
f24909ab39 mt76x2: add frame protection support
Introduce mac80211 rts threshold handler in order to add frame
protection support to mt76x2 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-30 17:32:12 +03:00
Davide Caratti
53c2cb8df3 mt7601u: expose 802.11w support
Set MFP_CAPABLE bit in hw flag capabilities exported by the driver

Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-30 17:30:35 +03:00
Lorenzo Bianconi
03d677c50a mt7601u: use sw encryption for hw unsupported ciphers
Fall back to software encryption for hw unsupported ciphers in order
to enable 802.11w

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-30 17:30:35 +03:00
David S. Miller
a527d3f728 wireless-drivers-next patches for 4.19
The first set of patches for 4.19. Only smaller features and bug
 fixes, not really anything major. Also included are changes to
 include/linux/bitfield.h, we agreed with Johannes that it makes sense
 to apply them via wireless-drivers-next.
 
 Major changes:
 
 ath10k
 
 * support channel 173
 
 * fix spectral scan for QCA9984 and QCA9888 chipsets
 
 ath6kl
 
 * add support for Dell Wireless 1537
 
 ti wlcore
 
 * add support for runtime PM
 
 * enable runtime PM autosuspend support
 
 qtnfmac
 
 * support changing MAC address
 
 * enable source MAC address randomization support
 
 libertas
 
 * fix suspend and resume for SDIO cards
 
 mt76
 
 * add software DFS radar pattern detector for mt76x2 based devices
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Merge tag 'wireless-drivers-next-for-davem-2018-07-23' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.19

The first set of patches for 4.19. Only smaller features and bug
fixes, not really anything major. Also included are changes to
include/linux/bitfield.h, we agreed with Johannes that it makes sense
to apply them via wireless-drivers-next.

Major changes:

ath10k

* support channel 173

* fix spectral scan for QCA9984 and QCA9888 chipsets

ath6kl

* add support for Dell Wireless 1537

ti wlcore

* add support for runtime PM

* enable runtime PM autosuspend support

qtnfmac

* support changing MAC address

* enable source MAC address randomization support

libertas

* fix suspend and resume for SDIO cards

mt76

* add software DFS radar pattern detector for mt76x2 based devices
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-23 21:30:03 -07:00
Lorenzo Bianconi
4a07ed51ca mt76x2: debugfs: add sw pulse statistics to dfs debugfs
Add sw pattern detector statistics to mt76x2 debugfs.
Moreover track down number of allocated sequence by the detector

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-04 18:16:01 +03:00
Lorenzo Bianconi
b7384e4e0d mt76x2: dfs: add sw pattern detector
Add sw DFS pattern detector support for mt76x2 based devices.
Dfs pattern supported:
- short pulse radar patterns
- staggered radar patterns

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-04 18:15:59 +03:00
Lorenzo Bianconi
1fc9bc9ab5 mt76x2: dfs: add sw event ring buffer
Introduce sw event ring buffer to queue DFS pulses loaded from the hw.
Radar pulses will be used in DFS sw detector

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-04 18:15:58 +03:00
Lorenzo Bianconi
ee8aa945e4 mt76: introduce mt76_{incr,decr} utility routines
Add mt76_{incr,decr} utility routines to increment/decrement a value
with wrap-around (they will be used by mt76x2 DFS sw detector)

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-04 18:15:57 +03:00
Felix Fietkau
c3ae2103e0 mt76: improve gain adjustment in noisy environments
When switching between low gain (high RSSI) and high gain settings, it
can take a few seconds to adjust to the current environment.
This can lead to short periods of time with extreme packet loss.

When switching from low_gain=1 to low_gain=2, start with the same gain
adjustment value instead of the lowest to avoid spikes of huge numbers
of false CCA events

Also avoid resetting adjustment values on switching between low_gain
values 0 and 1, since it affects only the upper limit of vga adjustment

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-27 19:15:14 +03:00
Felix Fietkau
32e49efe0f mt76: track ewma rssi for gain adjustment per station
This preserves more sensitivity when weak stations are active and avoids
counting signal measurements from other unrelated networks

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-27 19:15:10 +03:00
Felix Fietkau
108ec4dafd mt76: add a debugfs file to dump agc calibration information
Useful for debugging gain adjustment issues triggered by signal strength
changes.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-27 19:15:06 +03:00
Felix Fietkau
8e31f0d35a mt76: fix variable gain adjustment range
The range should only be limited to 4 for really weak signals, for all
other gain settings the range is 16.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-27 19:15:03 +03:00
Felix Fietkau
fa967b5860 mt76: clear false CCA counters after changing gain settings
They will be read on the next calibration step without gain change and
must not count earlier events

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-27 19:14:58 +03:00
Felix Fietkau
9292116871 mt76: adjust AGC control register 26 based on gain for VHT80
Use values based on the vendor driver

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-27 19:14:54 +03:00
Felix Fietkau
6cdb9614a8 mt76: fix swapped values for RXO-18 in gain control
The lowest bit should be set to 0 only for strong links, not for weak
ones.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-27 19:14:51 +03:00
Felix Fietkau
9afef0fdda mt76: fix threshold for gain adjustment
The gain should be reduced only for very strong connections, not for mid
range.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-27 19:14:48 +03:00
Felix Fietkau
aea3827292 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 <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-27 19:14:46 +03:00
Lorenzo Bianconi
2d1e9be001 mt76x2: fix mrr idx/count estimation in mt76x2_mac_fill_tx_status()
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: 7bc04215a6 ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-27 19:05:15 +03:00
Stanislaw Gruszka
92963318a2 mt7601u: remove warning when avg_rssi is zero
It turned out that we can run calibration without already received
frames with RSSI data. In such case just don't update AGC register
and don't print the warning.

Fixes: b305a6ab02 ("mt7601u: use EWMA to calculate avg_rssi")
Reported-by: Adam Borowski <kilobyte@angband.pl>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-24 20:01:38 +03:00
Kees Cook
a86854d0c5 treewide: devm_kzalloc() -> devm_kcalloc()
The devm_kzalloc() function has a 2-factor argument form, devm_kcalloc().
This patch replaces cases of:

        devm_kzalloc(handle, a * b, gfp)

with:
        devm_kcalloc(handle, a * b, gfp)

as well as handling cases of:

        devm_kzalloc(handle, a * b * c, gfp)

with:

        devm_kzalloc(handle, array3_size(a, b, c), gfp)

as it's slightly less ugly than:

        devm_kcalloc(handle, array_size(a, b), c, gfp)

This does, however, attempt to ignore constant size factors like:

        devm_kzalloc(handle, 4 * 1024, gfp)

though any constants defined via macros get caught up in the conversion.

Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.

Some manual whitespace fixes were needed in this patch, as Coccinelle
really liked to write "=devm_kcalloc..." instead of "= devm_kcalloc...".

The Coccinelle script used for this was:

// Fix redundant parens around sizeof().
@@
expression HANDLE;
type TYPE;
expression THING, E;
@@

(
  devm_kzalloc(HANDLE,
-	(sizeof(TYPE)) * E
+	sizeof(TYPE) * E
  , ...)
|
  devm_kzalloc(HANDLE,
-	(sizeof(THING)) * E
+	sizeof(THING) * E
  , ...)
)

// Drop single-byte sizes and redundant parens.
@@
expression HANDLE;
expression COUNT;
typedef u8;
typedef __u8;
@@

(
  devm_kzalloc(HANDLE,
-	sizeof(u8) * (COUNT)
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(__u8) * (COUNT)
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(char) * (COUNT)
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(unsigned char) * (COUNT)
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(u8) * COUNT
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(__u8) * COUNT
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(char) * COUNT
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(unsigned char) * COUNT
+	COUNT
  , ...)
)

// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
expression HANDLE;
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@

(
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * (COUNT_ID)
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * COUNT_ID
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * (COUNT_CONST)
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * COUNT_CONST
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * (COUNT_ID)
+	COUNT_ID, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * COUNT_ID
+	COUNT_ID, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * (COUNT_CONST)
+	COUNT_CONST, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * COUNT_CONST
+	COUNT_CONST, sizeof(THING)
  , ...)
)

// 2-factor product, only identifiers.
@@
expression HANDLE;
identifier SIZE, COUNT;
@@

- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	SIZE * COUNT
+	COUNT, SIZE
  , ...)

// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression HANDLE;
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@

(
  devm_kzalloc(HANDLE,
-	sizeof(TYPE) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
)

// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression HANDLE;
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@

(
  devm_kzalloc(HANDLE,
-	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
)

// 3-factor product, only identifiers, with redundant parens removed.
@@
expression HANDLE;
identifier STRIDE, SIZE, COUNT;
@@

(
  devm_kzalloc(HANDLE,
-	(COUNT) * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	COUNT * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	COUNT * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(COUNT) * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	COUNT * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(COUNT) * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(COUNT) * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	COUNT * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
)

// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression HANDLE;
expression E1, E2, E3;
constant C1, C2, C3;
@@

(
  devm_kzalloc(HANDLE, C1 * C2 * C3, ...)
|
  devm_kzalloc(HANDLE,
-	(E1) * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(E1) * (E2) * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(E1) * (E2) * (E3)
+	array3_size(E1, E2, E3)
  , ...)
|
  devm_kzalloc(HANDLE,
-	E1 * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
)

// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression HANDLE;
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@

(
  devm_kzalloc(HANDLE, sizeof(THING) * C2, ...)
|
  devm_kzalloc(HANDLE, sizeof(TYPE) * C2, ...)
|
  devm_kzalloc(HANDLE, C1 * C2 * C3, ...)
|
  devm_kzalloc(HANDLE, C1 * C2, ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * (E2)
+	E2, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * E2
+	E2, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * (E2)
+	E2, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * E2
+	E2, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	(E1) * E2
+	E1, E2
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	(E1) * (E2)
+	E1, E2
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	E1 * E2
+	E1, E2
  , ...)
)

Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12 16:19:22 -07:00
Linus Torvalds
1c8c5a9d38 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:

 1) Add Maglev hashing scheduler to IPVS, from Inju Song.

 2) Lots of new TC subsystem tests from Roman Mashak.

 3) Add TCP zero copy receive and fix delayed acks and autotuning with
    SO_RCVLOWAT, from Eric Dumazet.

 4) Add XDP_REDIRECT support to mlx5 driver, from Jesper Dangaard
    Brouer.

 5) Add ttl inherit support to vxlan, from Hangbin Liu.

 6) Properly separate ipv6 routes into their logically independant
    components. fib6_info for the routing table, and fib6_nh for sets of
    nexthops, which thus can be shared. From David Ahern.

 7) Add bpf_xdp_adjust_tail helper, which can be used to generate ICMP
    messages from XDP programs. From Nikita V. Shirokov.

 8) Lots of long overdue cleanups to the r8169 driver, from Heiner
    Kallweit.

 9) Add BTF ("BPF Type Format"), from Martin KaFai Lau.

10) Add traffic condition monitoring to iwlwifi, from Luca Coelho.

11) Plumb extack down into fib_rules, from Roopa Prabhu.

12) Add Flower classifier offload support to igb, from Vinicius Costa
    Gomes.

13) Add UDP GSO support, from Willem de Bruijn.

14) Add documentation for eBPF helpers, from Quentin Monnet.

15) Add TLS tx offload to mlx5, from Ilya Lesokhin.

16) Allow applications to be given the number of bytes available to read
    on a socket via a control message returned from recvmsg(), from
    Soheil Hassas Yeganeh.

17) Add x86_32 eBPF JIT compiler, from Wang YanQing.

18) Add AF_XDP sockets, with zerocopy support infrastructure as well.
    From Björn Töpel.

19) Remove indirect load support from all of the BPF JITs and handle
    these operations in the verifier by translating them into native BPF
    instead. From Daniel Borkmann.

20) Add GRO support to ipv6 gre tunnels, from Eran Ben Elisha.

21) Allow XDP programs to do lookups in the main kernel routing tables
    for forwarding. From David Ahern.

22) Allow drivers to store hardware state into an ELF section of kernel
    dump vmcore files, and use it in cxgb4. From Rahul Lakkireddy.

23) Various RACK and loss detection improvements in TCP, from Yuchung
    Cheng.

24) Add TCP SACK compression, from Eric Dumazet.

25) Add User Mode Helper support and basic bpfilter infrastructure, from
    Alexei Starovoitov.

26) Support ports and protocol values in RTM_GETROUTE, from Roopa
    Prabhu.

27) Support bulking in ->ndo_xdp_xmit() API, from Jesper Dangaard
    Brouer.

28) Add lots of forwarding selftests, from Petr Machata.

29) Add generic network device failover driver, from Sridhar Samudrala.

* ra.kernel.org:/pub/scm/linux/kernel/git/davem/net-next: (1959 commits)
  strparser: Add __strp_unpause and use it in ktls.
  rxrpc: Fix terminal retransmission connection ID to include the channel
  net: hns3: Optimize PF CMDQ interrupt switching process
  net: hns3: Fix for VF mailbox receiving unknown message
  net: hns3: Fix for VF mailbox cannot receiving PF response
  bnx2x: use the right constant
  Revert "net: sched: cls: Fix offloading when ingress dev is vxlan"
  net: dsa: b53: Fix for brcm tag issue in Cygnus SoC
  enic: fix UDP rss bits
  netdev-FAQ: clarify DaveM's position for stable backports
  rtnetlink: validate attributes in do_setlink()
  mlxsw: Add extack messages for port_{un, }split failures
  netdevsim: Add extack error message for devlink reload
  devlink: Add extack to reload and port_{un, }split operations
  net: metrics: add proper netlink validation
  ipmr: fix error path when ipmr_new_table fails
  ip6mr: only set ip6mr_table from setsockopt when ip6mr_new_table succeeds
  net: hns3: remove unused hclgevf_cfg_func_mta_filter
  netfilter: provide udp*_lib_lookup for nf_tproxy
  qed*: Utilize FW 8.37.2.0
  ...
2018-06-06 18:39:49 -07:00
Kees Cook
acafe7e302 treewide: Use struct_size() for kmalloc()-family
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:

struct foo {
    int stuff;
    void *entry[];
};

instance = kmalloc(sizeof(struct foo) + sizeof(void *) * count, GFP_KERNEL);

Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:

instance = kmalloc(struct_size(instance, entry, count), GFP_KERNEL);

This patch makes the changes for kmalloc()-family (and kvmalloc()-family)
uses. It was done via automatic conversion with manual review for the
"CHECKME" non-standard cases noted below, using the following Coccinelle
script:

// pkey_cache = kmalloc(sizeof *pkey_cache + tprops->pkey_tbl_len *
//                      sizeof *pkey_cache->table, GFP_KERNEL);
@@
identifier alloc =~ "kmalloc|kzalloc|kvmalloc|kvzalloc";
expression GFP;
identifier VAR, ELEMENT;
expression COUNT;
@@

- alloc(sizeof(*VAR) + COUNT * sizeof(*VAR->ELEMENT), GFP)
+ alloc(struct_size(VAR, ELEMENT, COUNT), GFP)

// mr = kzalloc(sizeof(*mr) + m * sizeof(mr->map[0]), GFP_KERNEL);
@@
identifier alloc =~ "kmalloc|kzalloc|kvmalloc|kvzalloc";
expression GFP;
identifier VAR, ELEMENT;
expression COUNT;
@@

- alloc(sizeof(*VAR) + COUNT * sizeof(VAR->ELEMENT[0]), GFP)
+ alloc(struct_size(VAR, ELEMENT, COUNT), GFP)

// Same pattern, but can't trivially locate the trailing element name,
// or variable name.
@@
identifier alloc =~ "kmalloc|kzalloc|kvmalloc|kvzalloc";
expression GFP;
expression SOMETHING, COUNT, ELEMENT;
@@

- alloc(sizeof(SOMETHING) + COUNT * sizeof(ELEMENT), GFP)
+ alloc(CHECKME_struct_size(&SOMETHING, ELEMENT, COUNT), GFP)

Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-06 11:15:43 -07:00
Felix Fietkau
cbec83d40c mt76: use udelay instead of usleep_range in mt76x2_mac_stop
usleep_range can cause excessive latency on channel change if waiting
for the MAC to stop fails. It will be forced to stop by the code
following that loop anyway.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-23 10:58:20 +03:00
Felix Fietkau
26e40d4c0b mt76: wait for pending tx to complete before switching channel
Reduces interruption caused by scanning

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-23 10:58:14 +03:00
Felix Fietkau
a85b590cf5 mt76: move ieee80211_hw allocation to common core
Allows it to be shared between different drivers and locks to be
initialized earlier

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-23 10:58:13 +03:00
Felix Fietkau
a164a94212 mt76: prevent tx scheduling during channel change
Re-schedule tx afterwards

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-23 10:58:09 +03:00
Felix Fietkau
89bc67e3a9 mt76: only stop tx queues on offchannel, not during the entire scan
During scans, mac80211 frequently switches back to the home channel to
minimize interruption of ongoing traffic. Keep regular tx queues active
during that time.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-23 10:58:09 +03:00
Felix Fietkau
66a77cbe63 mt76: discard early received packets if not running yet
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: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-23 10:56:48 +03:00
Felix Fietkau
d98fb328ad 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 <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-23 10:56:47 +03:00
Lorenzo Bianconi
0d45d3fe42 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 <luca.bisti@gmail.com>
Tested-by: Gaetano Catalli <gaetano.catalli@gmail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-23 10:56:05 +03:00
Lorenzo Bianconi
6823dc0d91 mt76x2: add a polling delay in mt76x2_mac_stop routine
Add a usleep_range in mt76x2_mac_stop routine in order to add
a polling delay checking values of MT_MAC_STATUS and IBI_R12 registers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-12 11:54:02 +03:00
Lorenzo Bianconi
c990affd5a mt76x2: fix avg_rssi estimation
Add leftover filter coefficients in IIR rssi estimation

Fixes: 7bc04215a6 ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-04 15:40:20 +03:00
Lorenzo Bianconi
8efb868566 mt76x2: remove unnecessary break in mt76x2_mac_process_tx_rate()
Remove unnecessary break statement in the default case of bw switch
block in mt76x2_mac_process_tx_rate routine

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-04 15:36:32 +03:00
Felix Fietkau
95135e8c0b mt76: check for pending reset before attempting to schedule tx
The check within mt76_txq_send_burst is not enough, as it happens after
a first frame has already been queued up

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-30 13:21:29 +03:00
Felix Fietkau
1d868b70e0 mt76: add rcu locking around tx scheduling
Fixes a reported lockdep error in mac80211:

[  179.867321] =============================
[  179.871510] WARNING: suspicious RCU usage
[  179.875528] 4.14.32 #0 Not tainted
[  179.878924] -----------------------------
[  179.882981] backports-2017-11-01/net/mac80211/tx.c:594 suspicious rcu_dereference_check() usage!
[  179.891785]
[  179.891785] other info that might help us debug this:
[  179.891785]
[  179.899824]
[  179.899824] rcu_scheduler_active = 2, debug_locks = 1
[  179.906343] 2 locks held by ksoftirqd/0/7:
[  179.910479]  #0:  (&(&q->lock)->rlock){+.-.}, at: [<86b207a4>] mt76_dma_tx_cleanup+0x64/0x354 [mt76]
[  179.919734]  #1:  (&(&fq->lock)->rlock){+.-.}, at: [<87238410>] ieee80211_tx_dequeue+0x54/0xc3c [mac80211]
[  179.929890]
[  179.929890] stack backtrace:
[  179.934257] CPU: 0 PID: 7 Comm: ksoftirqd/0 Not tainted 4.14.32 #0
[  179.940421] Stack : 00000000 00000000 00000000 00000000 80e0fce2 00000036 00000000 00000000
[  179.948864]         87c3d24c 80696377 8061039c 00000000 00000007 00000001 87c5db78 6534689d
[  179.957306]         00000000 00000000 80e10000 87c5da74 00000001 0000015a 00000007 00000000
[  179.965748]         00000000 806a0000 000e4171 00000000 00000000 00000000 ffffffff 00000001
[  179.974189]         806c0000 8692b240 86b000d0 87316fe4 00000001 802c9a68 00000000 80700000
[  179.982632]         ...
[  179.985104] Call Trace:
[  179.987582] [<80010a48>] show_stack+0x58/0x100
[  179.992040] [<804c2c58>] dump_stack+0xe8/0x170
[  179.996868] [<87234a04>] ieee80211_tx_h_select_key+0xa8/0x5b8 [mac80211]
[  180.004299] [<87238d44>] ieee80211_tx_dequeue+0x988/0xc3c [mac80211]
[  180.011048] [<86b230dc>] mt76_txq_schedule+0x110/0x3a4 [mt76]
[  180.016821] [<86b209d0>] mt76_dma_tx_cleanup+0x290/0x354 [mt76]
[  180.022777] [<86be2e60>] mt7603_tx_tasklet+0x40/0x6c [mt7603e]
[  180.028637] [<80037058>] tasklet_action+0x110/0x1ec
[  180.033532] [<804e1dac>] __do_softirq+0x164/0x35c
[  180.038235] [<80037174>] run_ksoftirqd+0x40/0x84
[  180.042870] [<800580c8>] smpboot_thread_fn+0x1a8/0x1d8
[  180.048023] [<800542e8>] kthread+0x130/0x144
[  180.052297] [<8000b1f8>] ret_from_kernel_thread+0x14/0x1c

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-30 13:21:29 +03:00
Felix Fietkau
9febfa67ca mt76: add rcu locking in tid reorder function
Avoids having the tid or station entry disappear prematurely.
Also cancel the reorder work earlier to avoid further processing delayed
by waiting for the lock to be released

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-30 13:21:28 +03:00
Felix Fietkau
c3d7c82a8b mt76: fix concurrent rx calls on A-MPDU release
Add a spinlock in mt76_rx_complete. Without this, multiple stats updates
could happen in parallel, which can lead to deadlocks. There are
probably more corner cases fixed by this change.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-30 13:21:27 +03:00
Lorenzo Bianconi
97389373d5 mt76x2: fix is_mt7612 routine
Fix is_mt7612 routine since asic version is set in mt76_dev revision
field and not in mt76x2_dev one.
Moreover remove mt76x2_dev rev field since it is never used in the
driver

Fixes: 7bc04215a6 ('mt76: add driver code for MT76x2e')
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-30 13:20:45 +03:00
Lorenzo Bianconi
cc6603aaee mt76x2: fix TXD_INFO bitmask definition
Despite this issue is not harmful since it is not actually used in
mt76 driver, fix DMA txinfo bitmask definition

Fixes: 7bc04215a6 ('mt76: add driver code for MT76x2e')
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 20:33:38 +03:00
Stanislaw Gruszka
2019c39a2d mt7601u: run calibration works after finishing scanning
When finishing scanning we switch to operational channel sill with
SCANNING flag. This mean that we never perform calibration works after
scanning. To fix the problem queue calibration works on
.sw_scan_complete() routine.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 20:33:03 +03:00
Stanislaw Gruszka
b305a6ab02 mt7601u: use EWMA to calculate avg_rssi
avr_rssi is not calculated correctly as we do not divide result
by 256 (mt76 sum avg_rssi1 and avg_rssi2 and divide by 512).
However dividing by 256 will make avg_rssi almost the same as
last rssi value - not really an average. So use EWMA to calculate
avg_rssi. I've chosen weight_rcp=4 to convergence quicker on signal
strength changes.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 20:33:02 +03:00
Lorenzo Bianconi
b9e5d4feb4 mt76x2: set default values in TX_ALC_CFG_{1, 2} for tempetaure compensation
Initialize default values for temperature compensation in TX_ALC_CFG_{1,2}
if tssi has been enabled

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 20:32:40 +03:00
Lorenzo Bianconi
bcb0f68ae2 mt76x2: fix tx_alc_enabled check
Fix mt76x2_temp_tx_alc_enabled routine since in order to enable tx_alc
temperature compensation it necessary to take into account BIT(15) of
MT_EE_TX_POWER_EXT_PA_5G eeprom info

Fixes: 7bc04215a6 ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 20:32:10 +03:00
Lorenzo Bianconi
cf7b411dce mt76x2: remove unnecessary MT_TX_ALC_CFG_4 configuration
Remove unnecessary MT_TX_ALC_CFG_4 configuration since the register value
will be properly set according to the usage of an external power amplifier

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 20:31:41 +03:00
Felix Fietkau
1af83148a4 mt76: check qos ack policy before reordering packets
Do not attempt to reorder packets not part of a BA session

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 20:30:09 +03:00
Felix Fietkau
18efed59fa mt76: set RX_FLAG_DUP_VALIDATED for A-MPDU reordered packets
Required for fast-rx and allows mac80211 to skip an unnnecessary check.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 20:30:06 +03:00
Felix Fietkau
07073a2768 mt76: fix potential sleep in atomic context
Use cancel_delayed_work instead of cancel_delayed_work_sync

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 20:30:03 +03:00
Felix Fietkau
80f28994f7 mt76: rework tx power handling
There were a number of issues in the existing tx power handling code:

1. The EEPROM target power for chain 0 refers to the actual output power
after the channel and bandwidth delta have been added to the initial
channel gain. This means the delta values should not be added/subtracted
for the rate power calculation

2. When power is reduced significantly, the initial channel gain
underflows very quickly, while the per-rate power offsets are high.
This miscalculation causes effective tx power to be increased when it
should actually be lowered.

Fix this by trying to adjust the channel gain to the lowest power from
the rate table. In case of under- or overflow, compensate by adding an
appropriate delta to the rate power values.

This makes power configuration more accurate on a wider range of
configurable values

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 20:29:57 +03:00
Felix Fietkau
9f67c277a8 mt76: toggle driver station powersave bit before notifying mac80211
Avoids race conditions from mac80211 enqueueing tx packets before the
tx-drop bit is cleared

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 20:29:57 +03:00
Felix Fietkau
49149d3f1c mt76: add missing VHT maximum A-MPDU length capability
Signficantly improves throughput with some clients

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 20:29:56 +03:00
Felix Fietkau
11b2a25f02 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 (to be submitted later)
it needs to be false.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 20:29:55 +03:00
Lorenzo Bianconi
00dfae9a0a mt76x2: make mt76x2_mac_reset routine static
Add static qualifier to mt76x2_mac_reset routine and remove the
prototype from mt76x2_mac.h since it is used just in mt76x2_init.c

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 20:29:18 +03:00
Lorenzo Bianconi
2cb161094e mt76x2: fix tssi initialization for 5GHz band
Fix mcu initial configuration for tssi calibration on 5GHz band

Fixes: 7bc04215a6 ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 20:28:30 +03:00
Gustavo A. R. Silva
5156b054bc mt7601u: phy: mark expected switch fall-through
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 20:27:59 +03:00
Linus Torvalds
38047d5c26 Driver core patches for 4.17-rc1
Here is the "big" set of driver core patches for 4.17-rc1.
 
 There's really not much here, just a bunch of firmware code refactoring
 from Luis as he attempts to wrangle that codebase into something that is
 managable, along with a bunch of userspace tests for it.  Other than
 that, a handful of small bugfixes and reverts of things that didn't work
 out.
 
 Full details are in the shortlog, it's not all that much.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the "big" set of driver core patches for 4.17-rc1.

  There's really not much here, just a bunch of firmware code
  refactoring from Luis as he attempts to wrangle that codebase into
  something that is managable, along with a bunch of userspace tests for
  it. Other than that, a handful of small bugfixes and reverts of things
  that didn't work out.

  Full details are in the shortlog, it's not all that much.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'driver-core-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (30 commits)
  drivers: base: remove check for callback in coredump_store()
  mt7601u: use firmware_request_cache() to address cache on reboot
  firmware: add firmware_request_cache() to help with cache on reboot
  firmware: fix typo on pr_info_once() when ignore_sysfs_fallback is used
  firmware: explicitly include vmalloc.h
  firmware: ensure the firmware cache is not used on incompatible calls
  test_firmware: modify custom fallback tests to use unique files
  firmware: add helper to check to see if fw cache is setup
  firmware: fix checking for return values for fw_add_devm_name()
  rename: _request_firmware_load() fw_load_sysfs_fallback()
  test_firmware: test three firmware kernel configs using a proc knob
  test_firmware: expand on library with shared helpers
  firmware: enable to force disable the fallback mechanism at run time
  firmware: enable run time change of forcing fallback loader
  firmware: move firmware loader into its own directory
  firmware: split firmware fallback functionality into its own file
  firmware: move loading timeout under struct firmware_fallback_config
  firmware: use helpers for setting up a temporary cache timeout
  firmware: simplify CONFIG_FW_LOADER_USER_HELPER_FALLBACK further
  drivers: base: add description for .coredump() callback
  ...
2018-04-04 19:41:45 -07:00
David S. Miller
d4069fe6fc Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
pull-request: bpf-next 2018-03-31

The following pull-request contains BPF updates for your *net-next* tree.

The main changes are:

1) Add raw BPF tracepoint API in order to have a BPF program type that
   can access kernel internal arguments of the tracepoints in their
   raw form similar to kprobes based BPF programs. This infrastructure
   also adds a new BPF_RAW_TRACEPOINT_OPEN command to BPF syscall which
   returns an anon-inode backed fd for the tracepoint object that allows
   for automatic detach of the BPF program resp. unregistering of the
   tracepoint probe on fd release, from Alexei.

2) Add new BPF cgroup hooks at bind() and connect() entry in order to
   allow BPF programs to reject, inspect or modify user space passed
   struct sockaddr, and as well a hook at post bind time once the port
   has been allocated. They are used in FB's container management engine
   for implementing policy, replacing fragile LD_PRELOAD wrapper
   intercepting bind() and connect() calls that only works in limited
   scenarios like glibc based apps but not for other runtimes in
   containerized applications, from Andrey.

3) BPF_F_INGRESS flag support has been added to sockmap programs for
   their redirect helper call bringing it in line with cls_bpf based
   programs. Support is added for both variants of sockmap programs,
   meaning for tx ULP hooks as well as recv skb hooks, from John.

4) Various improvements on BPF side for the nfp driver, besides others
   this work adds BPF map update and delete helper call support from
   the datapath, JITing of 32 and 64 bit XADD instructions as well as
   offload support of bpf_get_prandom_u32() call. Initial implementation
   of nfp packet cache has been tackled that optimizes memory access
   (see merge commit for further details), from Jakub and Jiong.

5) Removal of struct bpf_verifier_env argument from the print_bpf_insn()
   API has been done in order to prepare to use print_bpf_insn() soon
   out of perf tool directly. This makes the print_bpf_insn() API more
   generic and pushes the env into private data. bpftool is adjusted
   as well with the print_bpf_insn() argument removal, from Jiri.

6) Couple of cleanups and prep work for the upcoming BTF (BPF Type
   Format). The latter will reuse the current BPF verifier log as
   well, thus bpf_verifier_log() is further generalized, from Martin.

7) For bpf_getsockopt() and bpf_setsockopt() helpers, IPv4 IP_TOS read
   and write support has been added in similar fashion to existing
   IPv6 IPV6_TCLASS socket option we already have, from Nikita.

8) Fixes in recent sockmap scatterlist API usage, which did not use
   sg_init_table() for initialization thus triggering a BUG_ON() in
   scatterlist API when CONFIG_DEBUG_SG was enabled. This adds and
   uses a small helper sg_init_marker() to properly handle the affected
   cases, from Prashant.

9) Let the BPF core follow IDR code convention and therefore use the
   idr_preload() and idr_preload_end() helpers, which would also help
   idr_alloc_cyclic() under GFP_ATOMIC to better succeed under memory
   pressure, from Shaohua.

10) Last but not least, a spelling fix in an error message for the
    BPF cookie UID helper under BPF sample code, from Colin.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-31 23:33:04 -04:00
Alexei Starovoitov
d992ee6c1e net/mediatek: disambiguate mt76 vs mt7601u trace events
two trace events defined with the same name and both unused.
They conflict in allyesconfig build. Rename one of them.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-03-28 22:55:18 +02:00
Lorenzo Bianconi
c03a5aacde 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: 30ce7f4456 ("mt76: validate rx CCMP PN")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-27 12:12:35 +03:00
Lorenzo Bianconi
6958b02743 mt76x2: fix possible NULL pointer dereferencing in mt76x2_tx()
Fix a theoretical NULL pointer dereferencing in mt76x2_tx routine that
can occurs for injected frames in a monitor vif since vif pointer could
be NULL for that interfaces

Fixes: 2340523646 ("mt76: fix transmission of encrypted mgmt frames")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-27 12:10:30 +03:00
Lorenzo Bianconi
db2ad7c25a mt76: use mt76_poll_msec routine in mt76pci_load_firmware()
Use mt76_poll_msec() in mt76pci_load_firmware to check if the firmware
has been started instead of explicitly poll MCU running register

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-27 12:10:02 +03:00
Joe Perches
2ef00c5304 wireless: Use octal not symbolic permissions
Prefer the direct use of octal for permissions.

Done with checkpatch -f --types=SYMBOLIC_PERMS --fix-inplace
and some typing.

Miscellanea:

o Whitespace neatening around these conversions.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-27 11:01:13 +03:00
Luis R. Rodriguez
d723522b0b mt7601u: use firmware_request_cache() to address cache on reboot
request_firmware_cache() will ensure the firmware is available on resume
from suspend if on reboot the device retains the firmware.

This optimization is in place given otherwise on reboot we have to
reload the firmware, the opmization saves us about max 1s, minimum 10ms.

Cantabile has reported back this fixes his woes with both suspend and
hibernation.

Reported-by: Cantabile <cantabile.desu@gmail.com>
Tested-by: Cantabile <cantabile.desu@gmail.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-22 18:33:26 +01:00
Randy Dunlap
a6cf02e648 net/wireless: fix spaces and grammar copy/paste in vendor Kconfig help text
Lots of the wireless driver vendor Kconfig symol help text says
"questions about  cards." (2 spaces between "about" and "cards")

Besides dropping one of those spaces, it also needs some other word
inserted there. Instead of putting each vendor's name there, I chose
to say "these" cards in all of the Kconfig help text.

Cc: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-13 18:52:25 +02:00
Lorenzo Bianconi
a9eab62d41 mt7601u: let mac80211 validate rx CCMP PN
Apparently the hardware does not perform CCMP PN validation so
let mac80211 take care of possible replay attacks in sw.
Moreover indicate ICV and MIC had been stripped setting corresponding
bits in ieee80211_rx_status.
The fix has been validated using 4.2.1 and 4.1.3 tests from the WiFi
Alliance vulnerability detection tool.

Fixes: c869f77d6a ("add mt7601u driver")
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Tested-by: David Park <david.park@hitemengineering.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-13 18:35:03 +02:00
Lorenzo Bianconi
2f04652f89 mt7601u: simplify mt7601u_mcu_msg_alloc signature
Remove mt7601u_dev parameter from mt7601u_mcu_msg_alloc signature since
dev pointer is never used in routine body

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-13 18:34:25 +02:00
Lorenzo Bianconi
fbae9c7490 mt76x2: remove unnecessary len variable in mt76x2_eeprom_load()
Substitute unnecessary len variable in mt76x2_eeprom_load() with
MT7662_EEPROM_SIZE macro since len is used just to store eeprom
default size.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-13 18:33:46 +02:00
Lorenzo Bianconi
3fb2f6a4db mt7601u: remove a warning in mt7601u_efuse_physical_size_check()
Fix the following sparse warning in mt7601u_efuse_physical_size_check:
- drivers/net/wireless/mediatek/mt7601u/eeprom.c:77:27: warning:
  Variable length array is used

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-13 18:32:56 +02:00
Lorenzo Bianconi
5ebdc3e069 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 <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-13 18:32:01 +02:00
Lorenzo Bianconi
551e1ef4d2 mt76: add mt76_init_stream_cap routine
Add mt76_init_stream_cap utility routine to set ht/vht sta capabilities
related to number of streams currently used by the device
(it will be used by mac80211 set_antenna callback)

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-13 18:32:00 +02:00
Lorenzo Bianconi
24114a5f94 mt76: initialize available_antennas_{tx,rx} info
Initialize available_antennas related info in wiphy data structure
according to antenna_mask field; antenna_mask info is initialized
in device specific code and will be used in mac80211 {set,get}_antenna
callbacks

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-13 18:32:00 +02:00
Lorenzo Bianconi
fee0584380 mt7601u: make write with mask access atomic
Introduce __mt7601u_rr and __mt7601u_vendor_single_wr routines in order
to make mt7601u_rmw and mt7601u_rmc atomic. This patch does not fix a
reported issue but makes the usb access more robust to concurrent
operations on the same register since it is theoretically possible that
read and write accesses of mt7601u_rmw/mt7601u_rmc can be interleaved with
a different write operation on the same register.
Moreover using __mt7601u_rr and __mt7601u_vendor_single_wr in
mt7601u_rmw/mt7601u_rmc allows to grab vendor_req_mutex mutex once
instead of twice

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-28 16:58:42 +02:00
Lorenzo Bianconi
032a552e8d mt7601u: set device mac address in mt7601u_add_interface()
If mac80211 adds a vif with a different mac address respect to
the eeprom one, the device will not be able to connect to the ap
since the hw address has not been updated.
Fix the issue updating hw mac address in mt7601u_add_interface routine

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1516935
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-28 16:56:06 +02:00
Lorenzo Bianconi
e96826bde3 mt7601u: move mt7601u_set_macaddr in mac related code
Remove static qualifier from mt7601u_set_macaddr routine and move it
in mac related code in order to be used to properly support vif with
different mac address respect to the default one

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-28 16:56:05 +02:00
Lorenzo Bianconi
09e93f28aa mt76x2: remove warnings in mt76x2_mac_write_txwi()
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: 2340523646 ("mt76: fix transmission of encrypted management frames")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-28 16:54:19 +02:00
Felix Fietkau
cbbde7e8d9 mt76: do not set status->aggr for NULL data frames
Avoids data connection stalls when the client toggles powersave mode

Fixes: aee5b8cf24 ("mt76: implement A-MPDU rx reordering in the driver code")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-01 10:44:01 +02:00
Felix Fietkau
fb208dc73f mt76: avoid re-queueing A-MPDU rx reorder work if no frames are pending
Fixes: aee5b8cf24 ("mt76: implement A-MPDU rx reordering in the driver code")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-01 10:43:59 +02:00
Felix Fietkau
17cf68b702 mt76: implement processing of BlockAckReq frames
Avoids timeouts on reordered A-MPDU rx frames

Fixes: aee5b8cf24 ("mt76: implement A-MPDU rx reordering in the driver code")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-01 10:43:58 +02:00
Felix Fietkau
d71ef28636 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.

Fixes: aee5b8cf24 ("mt76: implement A-MPDU rx reordering in the driver code")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-02-01 10:43:57 +02:00
Felix Fietkau
30ce7f4456 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. 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: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-26 11:20:52 +02:00
Felix Fietkau
3675302de8 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 <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-26 11:18:45 +02:00
Felix Fietkau
9d9d738b4b mt76: split mt76_rx_complete
Add a separate function for processing frames after A-MPDU reordering,
reduce code duplication

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-26 11:18:43 +02:00
Felix Fietkau
aee5b8cf24 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 <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-26 11:18:39 +02:00
Felix Fietkau
9c68a57bc2 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 <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-26 11:18:34 +02:00
Felix Fietkau
4e34249e95 mt76: add an intermediate struct for rx status information
Preparation for passing in more internal rx data via skb->cb

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-26 11:18:32 +02:00
Felix Fietkau
1342cfea31 mt76: fix TSF value in probe responses
Like beacons, probe responses need a hardware-generated TSF value. Set
the flag that causes the hw to generate it

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-26 11:18:31 +02:00
Felix Fietkau
2b4307f538 mt76: retry rx polling as long as there is budget left
Sending frames to mac80211 needs time, which could allow for more rx
packets to end up in the DMA ring. Retry polling until there are no more
frames left. Improves rx latency under load.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-26 11:18:31 +02:00
Lorenzo Bianconi
ba9797b2a7 mt76x2: init: disable all pending tasklets during device removal
There is a possible race in mt76x2_stop_hardware() since pre_tbtt and
dfs tasklets could run during driver cleanup. Fix it disabling all
pending tasklets during device removal

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:17:35 +02:00
Lorenzo Bianconi
634e99f0d4 mt76x2: dfs: take into account dfs region in mt76x2_dfs_init_params()
Do not enable DFS state machine if dfs region is set to NL80211_DFS_UNSET

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:15:34 +02:00
Lorenzo Bianconi
2070f3cc2c mt76x2: dfs: add set_domain handler
Add mt76x2_dfs_set_domain routine in order to properly reconfigure
pattern detector when DFS domain has been changed

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:15:33 +02:00
Lorenzo Bianconi
8c9f6491a3 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 <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:15:33 +02:00
Felix Fietkau
2340523646 mt76: 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 <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:12:40 +02:00
Lorenzo Bianconi
1cbbf69cc8 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: 7bc04215a6 ("mt76: add driver code for MT76x2e")
Tested-by: Gaetano Catalli <gaetano.catalli@gmail.com>
Signed-off-by: Gaetano Catalli <gaetano.catalli@gmail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:11:03 +02:00
Lorenzo Bianconi
98051872fd mt76: fix possible NULL pointer dereferencing in mt76x2_mac_write_txwi()
Verify wcid is not NULL before dereferencing the pointer to initialize
txwi rate/power info

Fixes: 7bc04215a6 ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-17 16:49:07 +02:00
Lorenzo Bianconi
99ac5327e9 mt76: 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: 7bc04215a6 ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-17 16:49:06 +02:00
Lorenzo Bianconi
c3929a980b mt76x2: eeprom: fix typo in mt76x2_get_power_info_5g()
Fix typo in 5GHz power vs channel eeprom parsing

Fixes: 7bc04215a6 ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-08 19:29:40 +02:00
Colin Ian King
364bea50db mt76: fix memcpy to potential null pointer on failed allocation
Currently if the allocation of skb fails and returns NULL then the
call to skb_put will cause a null pointer dereference. Fix this by
checking for a null skb and returning NULL.  Note that calls to
function mt76x2_mcu_msg_alloc don't directly check the null return
but instead pass the NULL pointer to mt76x2_mcu_msg_send which
checks for the NULL and returns ENOMEM in this case.

Detected by CoverityScan, CID#1462624 ("Dereference null return value")

Fixes: 7bc04215a6 ("mt76: add driver code for MT76x2e")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-08 19:27:44 +02:00
Lorenzo Bianconi
a86af66f9b mt76x2: init: fix rx filter default value during init
mt76x2_mac_start writes dev->rxfilter to the hardware. It also happens
during init, before dev->rxfilter is filled with the initval register
value, leading to issues like promisc mode being enabled
unconditionally.

Fix this by reading the default value into dev->rxfilter earlier

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-08 19:25:56 +02:00
Felix Fietkau
e8be626d79 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 <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-08 19:25:55 +02:00
Lorenzo Bianconi
eb46e5b7be mt76x2: init: disable APCLI by default
It is no longer necessary for client mode operation, vif index entries
8-16 are no longer used

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-08 19:25:51 +02:00
Felix Fietkau
53aa29b274 mt76x2: convert between per-chain tx power and combined output
Using both chains adds max. 3 dBm. A similar worst-case calculation is
being used in ath9k as well to ensure that the hardware stays within
regulatory limits

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-08 19:25:51 +02:00
Felix Fietkau
984ea50324 mt76x2: initialize channel power limits at probe time
This allows user space to query the real hardware limits directly

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-08 19:25:50 +02:00
Felix Fietkau
60e2434c5f mt76x2: add channel argument to eeprom tx power functions
Preparation for exposing maximum power to mac80211

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-08 19:25:50 +02:00
Felix Fietkau
ed6b437081 mt76x2: increase OFDM SIFS time
Fixes throughput issues in combination with LDPC

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-08 19:25:48 +02:00
Felix Fietkau
c2d4c8723d mt76x2: remove some harmless WARN_ONs in tx status and rx path
Discard affected packets instead. Should reduce the frequency of bogus
bug reports

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-08 19:25:47 +02:00
Fengguang Wu
34152a809d 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 <nbd@nbd.name>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-08 19:25:47 +02:00
Fengguang Wu
1a2b3666da mt76: fix debugfs_simple_attr.cocci warnings
drivers/net/wireless/mediatek/mt76/debugfs.c:36:0-23: WARNING: fops_regval should be defined with DEFINE_DEBUGFS_ATTRIBUTE

 Use DEFINE_DEBUGFS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTRIBUTE
 for debugfs files.

Semantic patch information:
 Rationale: DEFINE_SIMPLE_ATTRIBUTE + debugfs_create_file()
 imposes some significant overhead as compared to
 DEFINE_DEBUGFS_ATTRIBUTE + debugfs_create_file_unsafe().

Generated by: scripts/coccinelle/api/debugfs/debugfs_simple_attr.cocci

Fixes: a5f6039c8f9c ("mt76: add driver code for MT76x2e")
CC: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-08 19:25:46 +02:00
Felix Fietkau
7bc04215a6 mt76: add driver code for MT76x2e
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: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-12-07 15:35:56 +02:00
Felix Fietkau
17f1de56df mt76: add common code shared between multiple chipsets
This will be used by drivers for MT76x2e, MT7603e and MT7628

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-12-07 15:35:55 +02:00
Christophe Jaillet
b3b2f62c62 mt7601u: check memory allocation failure
Check memory allocation failure and return -ENOMEM in such a case, as
already done a few lines below.

As 'dev->tx_q' can be NULL, we also need to check for that in
'mt7601u_free_tx()', and return early.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-24 12:54:33 +03:00
Arvind Yadav
e2717b3127 mt7601u: constify usb_device_id
usb_device_id are not supposed to change at runtime. All functions
working with usb_device_id provided by <linux/usb.h> work with
const usb_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-10 11:56:00 +03:00
Johannes Berg
d58ff35122 networking: make skb_push & __skb_push return void pointers
It seems like a historic accident that these return unsigned char *,
and in many places that means casts are required, more often than not.

Make these functions return void * and remove all the casts across
the tree, adding a (u8 *) cast only where the unsigned char pointer
was used directly, all done with the following spatch:

    @@
    expression SKB, LEN;
    typedef u8;
    identifier fn = { skb_push, __skb_push, skb_push_rcsum };
    @@
    - *(fn(SKB, LEN))
    + *(u8 *)fn(SKB, LEN)

    @@
    expression E, SKB, LEN;
    identifier fn = { skb_push, __skb_push, skb_push_rcsum };
    type T;
    @@
    - E = ((T *)(fn(SKB, LEN)))
    + E = fn(SKB, LEN)

    @@
    expression SKB, LEN;
    identifier fn = { skb_push, __skb_push, skb_push_rcsum };
    @@
    - fn(SKB, LEN)[0]
    + *(u8 *)fn(SKB, LEN)

Note that the last part there converts from push(...)[0] to the
more idiomatic *(u8 *)push(...).

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-16 11:48:40 -04:00
Johannes Berg
59ae1d127a networking: introduce and use skb_put_data()
A common pattern with skb_put() is to just want to memcpy()
some data into the new space, introduce skb_put_data() for
this.

An spatch similar to the one for skb_put_zero() converts many
of the places using it:

    @@
    identifier p, p2;
    expression len, skb, data;
    type t, t2;
    @@
    (
    -p = skb_put(skb, len);
    +p = skb_put_data(skb, data, len);
    |
    -p = (t)skb_put(skb, len);
    +p = skb_put_data(skb, data, len);
    )
    (
    p2 = (t2)p;
    -memcpy(p2, data, len);
    |
    -memcpy(p, data, len);
    )

    @@
    type t, t2;
    identifier p, p2;
    expression skb, data;
    @@
    t *p;
    ...
    (
    -p = skb_put(skb, sizeof(t));
    +p = skb_put_data(skb, data, sizeof(t));
    |
    -p = (t *)skb_put(skb, sizeof(t));
    +p = skb_put_data(skb, data, sizeof(t));
    )
    (
    p2 = (t2)p;
    -memcpy(p2, data, sizeof(*p));
    |
    -memcpy(p, data, sizeof(*p));
    )

    @@
    expression skb, len, data;
    @@
    -memcpy(skb_put(skb, len), data, len);
    +skb_put_data(skb, data, len);

(again, manually post-processed to retain some comments)

Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-16 11:48:37 -04:00
David S. Miller
cec3819198 Another set of patches for -next:
* API support for concurrent scheduled scan requests
  * API changes for roaming reporting
  * BSS max idle support in mac80211
  * API changes for TX status reporting in mac80211
  * API changes for RX rate reporting in mac80211
  * rewrite monitor logic to prepare for BPF filters
  * bugfix for rare devices without 2.4 GHz support
  * a bugfix for recent DFS changes
  * some further cleanups
 
 The API changes are actually at a nice time, since it's
 typically quiet just before the merge window, and trees
 can be synchronized easily during it.
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Merge tag 'mac80211-next-for-davem-2017-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
Another set of patches for -next:
 * API support for concurrent scheduled scan requests
 * API changes for roaming reporting
 * BSS max idle support in mac80211
 * API changes for TX status reporting in mac80211
 * API changes for RX rate reporting in mac80211
 * rewrite monitor logic to prepare for BPF filters
 * bugfix for rare devices without 2.4 GHz support
 * a bugfix for recent DFS changes
 * some further cleanups

The API changes are actually at a nice time, since it's
typically quiet just before the merge window, and trees
can be synchronized easily during it.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-28 14:41:15 -04:00
Johannes Berg
da6a4352e7 mac80211: separate encoding/bandwidth from flags
We currently use a lot of flags that are mutually incompatible,
separate this out into actual encoding and bandwidth enum values.

Much of this again done with spatch, with manual post-editing,
mostly to add the switch statements and get rid of the conversions.

@@
expression status;
@@
-status->enc_flags |= RX_ENC_FLAG_80MHZ
+status->bw = RATE_INFO_BW_80
@@
expression status;
@@
-status->enc_flags |= RX_ENC_FLAG_40MHZ
+status->bw = RATE_INFO_BW_40
@@
expression status;
@@
-status->enc_flags |= RX_ENC_FLAG_20MHZ
+status->bw = RATE_INFO_BW_20
@@
expression status;
@@
-status->enc_flags |= RX_ENC_FLAG_160MHZ
+status->bw = RATE_INFO_BW_160
@@
expression status;
@@
-status->enc_flags |= RX_ENC_FLAG_5MHZ
+status->bw = RATE_INFO_BW_5
@@
expression status;
@@
-status->enc_flags |= RX_ENC_FLAG_10MHZ
+status->bw = RATE_INFO_BW_10

@@
expression status;
@@
-status->enc_flags |= RX_ENC_FLAG_VHT
+status->encoding = RX_ENC_VHT
@@
expression status;
@@
-status->enc_flags |= RX_ENC_FLAG_HT
+status->encoding = RX_ENC_HT
@@
expression status;
@@
-status.enc_flags |= RX_ENC_FLAG_VHT
+status.encoding = RX_ENC_VHT
@@
expression status;
@@
-status.enc_flags |= RX_ENC_FLAG_HT
+status.encoding = RX_ENC_HT

@@
expression status;
@@
-(status->enc_flags & RX_ENC_FLAG_HT)
+(status->encoding == RX_ENC_HT)
@@
expression status;
@@
-(status->enc_flags & RX_ENC_FLAG_VHT)
+(status->encoding == RX_ENC_VHT)

@@
expression status;
@@
-(status->enc_flags & RX_ENC_FLAG_5MHZ)
+(status->bw == RATE_INFO_BW_5)
@@
expression status;
@@
-(status->enc_flags & RX_ENC_FLAG_10MHZ)
+(status->bw == RATE_INFO_BW_10)
@@
expression status;
@@
-(status->enc_flags & RX_ENC_FLAG_40MHZ)
+(status->bw == RATE_INFO_BW_40)
@@
expression status;
@@
-(status->enc_flags & RX_ENC_FLAG_80MHZ)
+(status->bw == RATE_INFO_BW_80)
@@
expression status;
@@
-(status->enc_flags & RX_ENC_FLAG_160MHZ)
+(status->bw == RATE_INFO_BW_160)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-28 10:41:45 +02:00
Johannes Berg
7fdd69c5af mac80211: clean up rate encoding bits in RX status
In preparation for adding support for HE rates, clean up
the driver report encoding for rate/bandwidth reporting
on RX frames.

Much of this patch was done with the following spatch:

@@
expression status;
@@
-status->flag & (RX_FLAG_HT | RX_FLAG_VHT)
+status->enc_flags & (RX_ENC_FLAG_HT | RX_ENC_FLAG_VHT)

@@
assignment operator op;
expression status;
@@
-status->flag op RX_FLAG_SHORTPRE
+status->enc_flags op RX_ENC_FLAG_SHORTPRE
@@
expression status;
@@
-status->flag & RX_FLAG_SHORTPRE
+status->enc_flags & RX_ENC_FLAG_SHORTPRE

@@
assignment operator op;
expression status;
@@
-status->flag op RX_FLAG_HT
+status->enc_flags op RX_ENC_FLAG_HT
@@
expression status;
@@
-status->flag & RX_FLAG_HT
+status->enc_flags & RX_ENC_FLAG_HT

@@
assignment operator op;
expression status;
@@
-status->flag op RX_FLAG_40MHZ
+status->enc_flags op RX_ENC_FLAG_40MHZ
@@
expression status;
@@
-status->flag & RX_FLAG_40MHZ
+status->enc_flags & RX_ENC_FLAG_40MHZ

@@
assignment operator op;
expression status;
@@
-status->flag op RX_FLAG_SHORT_GI
+status->enc_flags op RX_ENC_FLAG_SHORT_GI
@@
expression status;
@@
-status->flag & RX_FLAG_SHORT_GI
+status->enc_flags & RX_ENC_FLAG_SHORT_GI

@@
assignment operator op;
expression status;
@@
-status->flag op RX_FLAG_HT_GF
+status->enc_flags op RX_ENC_FLAG_HT_GF
@@
expression status;
@@
-status->flag & RX_FLAG_HT_GF
+status->enc_flags & RX_ENC_FLAG_HT_GF

@@
assignment operator op;
expression status;
@@
-status->flag op RX_FLAG_VHT
+status->enc_flags op RX_ENC_FLAG_VHT
@@
expression status;
@@
-status->flag & RX_FLAG_VHT
+status->enc_flags & RX_ENC_FLAG_VHT

@@
assignment operator op;
expression status;
@@
-status->flag op RX_FLAG_STBC_MASK
+status->enc_flags op RX_ENC_FLAG_STBC_MASK
@@
expression status;
@@
-status->flag & RX_FLAG_STBC_MASK
+status->enc_flags & RX_ENC_FLAG_STBC_MASK

@@
assignment operator op;
expression status;
@@
-status->flag op RX_FLAG_LDPC
+status->enc_flags op RX_ENC_FLAG_LDPC
@@
expression status;
@@
-status->flag & RX_FLAG_LDPC
+status->enc_flags & RX_ENC_FLAG_LDPC

@@
assignment operator op;
expression status;
@@
-status->flag op RX_FLAG_10MHZ
+status->enc_flags op RX_ENC_FLAG_10MHZ
@@
expression status;
@@
-status->flag & RX_FLAG_10MHZ
+status->enc_flags & RX_ENC_FLAG_10MHZ

@@
assignment operator op;
expression status;
@@
-status->flag op RX_FLAG_5MHZ
+status->enc_flags op RX_ENC_FLAG_5MHZ
@@
expression status;
@@
-status->flag & RX_FLAG_5MHZ
+status->enc_flags & RX_ENC_FLAG_5MHZ

@@
assignment operator op;
expression status;
@@
-status->vht_flag op RX_VHT_FLAG_80MHZ
+status->enc_flags op RX_ENC_FLAG_80MHZ
@@
expression status;
@@
-status->vht_flag & RX_VHT_FLAG_80MHZ
+status->enc_flags & RX_ENC_FLAG_80MHZ

@@
assignment operator op;
expression status;
@@
-status->vht_flag op RX_VHT_FLAG_160MHZ
+status->enc_flags op RX_ENC_FLAG_160MHZ
@@
expression status;
@@
-status->vht_flag & RX_VHT_FLAG_160MHZ
+status->enc_flags & RX_ENC_FLAG_160MHZ

@@
assignment operator op;
expression status;
@@
-status->vht_flag op RX_VHT_FLAG_BF
+status->enc_flags op RX_ENC_FLAG_BF
@@
expression status;
@@
-status->vht_flag & RX_VHT_FLAG_BF
+status->enc_flags & RX_ENC_FLAG_BF

@@
assignment operator op;
expression status, STBC;
@@
-status->flag op STBC << RX_FLAG_STBC_SHIFT
+status->enc_flags op STBC << RX_ENC_FLAG_STBC_SHIFT

@@
assignment operator op;
expression status;
@@
-status.flag op RX_FLAG_SHORTPRE
+status.enc_flags op RX_ENC_FLAG_SHORTPRE
@@
expression status;
@@
-status.flag & RX_FLAG_SHORTPRE
+status.enc_flags & RX_ENC_FLAG_SHORTPRE

@@
assignment operator op;
expression status;
@@
-status.flag op RX_FLAG_HT
+status.enc_flags op RX_ENC_FLAG_HT
@@
expression status;
@@
-status.flag & RX_FLAG_HT
+status.enc_flags & RX_ENC_FLAG_HT

@@
assignment operator op;
expression status;
@@
-status.flag op RX_FLAG_40MHZ
+status.enc_flags op RX_ENC_FLAG_40MHZ
@@
expression status;
@@
-status.flag & RX_FLAG_40MHZ
+status.enc_flags & RX_ENC_FLAG_40MHZ

@@
assignment operator op;
expression status;
@@
-status.flag op RX_FLAG_SHORT_GI
+status.enc_flags op RX_ENC_FLAG_SHORT_GI
@@
expression status;
@@
-status.flag & RX_FLAG_SHORT_GI
+status.enc_flags & RX_ENC_FLAG_SHORT_GI

@@
assignment operator op;
expression status;
@@
-status.flag op RX_FLAG_HT_GF
+status.enc_flags op RX_ENC_FLAG_HT_GF
@@
expression status;
@@
-status.flag & RX_FLAG_HT_GF
+status.enc_flags & RX_ENC_FLAG_HT_GF

@@
assignment operator op;
expression status;
@@
-status.flag op RX_FLAG_VHT
+status.enc_flags op RX_ENC_FLAG_VHT
@@
expression status;
@@
-status.flag & RX_FLAG_VHT
+status.enc_flags & RX_ENC_FLAG_VHT

@@
assignment operator op;
expression status;
@@
-status.flag op RX_FLAG_STBC_MASK
+status.enc_flags op RX_ENC_FLAG_STBC_MASK
@@
expression status;
@@
-status.flag & RX_FLAG_STBC_MASK
+status.enc_flags & RX_ENC_FLAG_STBC_MASK

@@
assignment operator op;
expression status;
@@
-status.flag op RX_FLAG_LDPC
+status.enc_flags op RX_ENC_FLAG_LDPC
@@
expression status;
@@
-status.flag & RX_FLAG_LDPC
+status.enc_flags & RX_ENC_FLAG_LDPC

@@
assignment operator op;
expression status;
@@
-status.flag op RX_FLAG_10MHZ
+status.enc_flags op RX_ENC_FLAG_10MHZ
@@
expression status;
@@
-status.flag & RX_FLAG_10MHZ
+status.enc_flags & RX_ENC_FLAG_10MHZ

@@
assignment operator op;
expression status;
@@
-status.flag op RX_FLAG_5MHZ
+status.enc_flags op RX_ENC_FLAG_5MHZ
@@
expression status;
@@
-status.flag & RX_FLAG_5MHZ
+status.enc_flags & RX_ENC_FLAG_5MHZ

@@
assignment operator op;
expression status;
@@
-status.vht_flag op RX_VHT_FLAG_80MHZ
+status.enc_flags op RX_ENC_FLAG_80MHZ
@@
expression status;
@@
-status.vht_flag & RX_VHT_FLAG_80MHZ
+status.enc_flags & RX_ENC_FLAG_80MHZ

@@
assignment operator op;
expression status;
@@
-status.vht_flag op RX_VHT_FLAG_160MHZ
+status.enc_flags op RX_ENC_FLAG_160MHZ
@@
expression status;
@@
-status.vht_flag & RX_VHT_FLAG_160MHZ
+status.enc_flags & RX_ENC_FLAG_160MHZ

@@
assignment operator op;
expression status;
@@
-status.vht_flag op RX_VHT_FLAG_BF
+status.enc_flags op RX_ENC_FLAG_BF
@@
expression status;
@@
-status.vht_flag & RX_VHT_FLAG_BF
+status.enc_flags & RX_ENC_FLAG_BF

@@
assignment operator op;
expression status, STBC;
@@
-status.flag op STBC << RX_FLAG_STBC_SHIFT
+status.enc_flags op STBC << RX_ENC_FLAG_STBC_SHIFT

@@
@@
-RX_FLAG_STBC_SHIFT
+RX_ENC_FLAG_STBC_SHIFT

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-04-28 10:41:38 +02:00
Pan Bian
5fb01e91da mt7601u: check return value of alloc_skb
Function alloc_skb() will return a NULL pointer if there is no enough
memory. However, in function mt7601u_mcu_msg_alloc(), its return value
is not validated before it is used. This patch fixes it.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-26 12:01:58 +03:00
Andrew Zaborowski
ae44b50266 wireless: Set NL80211_EXT_FEATURE_CQM_RSSI_LIST in multiple drivers
Set the NL80211_EXT_FEATURE_CQM_RSSI_LIST wiphy extended feature
wholesale in all mac80211-based drivers that do not set the
IEEE80211_VIF_BEACON_FILTER flags on their interfaces.  mac80211 will
be processing supplied RSSI values in ieee80211_rx_mgmt_beacon and
will detect when the thresholds set by
ieee80211_set_cqm_rssi_range_config are crossed.  Remaining (few)
drivers need code to enable the firmware to monitor the thresholds.
This is mostly only compile-tested.

Signed-off-by: Andrew Zaborowski <andrew.zaborowski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-03-06 09:21:39 +01:00
Michael S. Tsirkin
6bdf1e0efb Makefile: drop -D__CHECK_ENDIAN__ from cflags
That's the default now, no need for makefiles to set it.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
2016-12-16 00:13:43 +02:00
Anthony Romano
05db221e30 mt7601u: wait for clear rxq when stopping mac
mt7601u_mac_stop_hw should stop polling the rxq once it remains empty
but instead continues polling after the rxq status stays clear; bringing
down the interface takes about six seconds from this alone.

Speed up path by exiting rxq loop once status repeatedly polls empty.

Signed-off-by: Anthony Romano <anthony.romano@coreos.com>
Reviewed-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29 17:32:32 +02:00
Jakub Kicinski
d43af50566 mt7601u: use linux/bitfield.h
Use the newly added linux/bitfield.h.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dinan Gunawardena <dinan.gunawardena@netronome.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-09 12:09:25 +03:00
Jakub Kicinski
adcc710d0a mt7601u: remove unnecessary include
There is no need to include linux/version.h in a in-tree
driver.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dinan Gunawardena <dinan.gunawardena@netronome.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-09 12:09:25 +03:00
Jakub Kicinski
faad5433b7 mt7601u: remove redefinition of GENMASK
Remove redefinition of GENMASK which should not be there
in the upstream version of the code.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dinan Gunawardena <dinan.gunawardena@netronome.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-09 12:09:24 +03:00
Johannes Berg
57fbcce37b cfg80211: remove enum ieee80211_band
This enum is already perfectly aliased to enum nl80211_band, and
the only reason for it is that we get IEEE80211_NUM_BANDS out of
it. There's no really good reason to not declare the number of
bands in nl80211 though, so do that and remove the cfg80211 one.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-12 15:56:15 +02:00
Colin Ian King
2b02a36d12 mt7601u: do not free dma_buf when ivp allocation fails
If the allocation of ivp fails the error handling attempts to
free an uninitialized dma_buf; this data structure just contains
garbage on the stack, so the freeing will cause issues when the
urb, buf and dma fields are free'd. Fix this by not free'ing the
dma_buf if the ivp allocation fails.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-03-07 14:39:05 +02:00
Sara Sharon
50ea05efaf mac80211: pass block ack session timeout to to driver
Currently mac80211 does not inform the driver of the session
block ack timeout when starting a rx aggregation session.
Drivers that manage the reorder buffer need to know this
parameter.
Seeing that there are now too many arguments for the
drv_ampdu_action() function, wrap them inside a structure.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-14 11:13:17 +01:00