- 27 Sep, 2022 1 commit
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Xiaomeng Tong authored
The bug is here: "} else if (item) {". The list iterator value will *always* be set and non-NULL by list_for_each_entry(), so it is incorrect to assume that the iterator value will be NULL if the list is empty or no element is found in list. Use a new value 'iter' as the list iterator, while use the old value 'item' as a dedicated pointer to point to the found element, which 1. can fix this bug, due to now 'item' is NULL only if it's not found. 2. do not need to change all the uses of 'item' after the loop. 3. can also limit the scope of the list iterator 'iter' *only inside* the traversal loop by simply declaring 'iter' inside the loop in the future, as usage of the iterator outside of the list_for_each_entry is considered harmful. https://lkml.org/lkml/2022/2/17/1032 Fixes: a910e4a9 ("cw1200: add driver for the ST-E CW1100 & CW1200 WLAN chipsets") Signed-off-by:Xiaomeng Tong <xiam0nd.tong@gmail.com> Signed-off-by:
Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220413091723.17596-1-xiam0nd.tong@gmail.com
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- 24 Sep, 2022 23 commits
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Kuan-Chung Chen authored
To enable/disable amsdu in set_tid_config, and currently only support to configure all tids (==0xff) for AMSDU, not individual tid. The command example is: iw wlan0 set tidconf tids 0xff amsdu off iw wlan0 set tidconf peer xx:xx:xx:xx:xx:xx tids 0xff amsdu on Signed-off-by:
Kuan-Chung Chen <damon.chen@realtek.com> Signed-off-by:
Ping-Ke Shih <pkshih@realtek.com> Signed-off-by:
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Kuan-Chung Chen authored
Align with the spec of 802.11ax, follow the conditions for not responding with an HE TB PPDU. When there are OBSS that cannot interpret 26-tone RU transmissions, we should disable such transmissions. Signed-off-by:
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Dian-Syuan Yang authored
Support P2P client to process Notice of Absence (NoA) mechanism when it connects with P2P GO applying an NoA schedule. We define some action types including init, update, remove and terminate in h2c function to enable/disable NoA schedule. Signed-off-by:
Dian-Syuan Yang <dian_syuan0116@realtek.com> Signed-off-by:
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Dian-Syuan Yang authored
To handle a connected client using WMM-PS, the P2P GO also need to enable this power save mechanism. We add WIPHY_FLAG_AP_UAPSD flag to support it and define maximum number of buffered frames the WMM GO may deliver to the WMM client. Signed-off-by:
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Ping-Ke Shih authored
Consider vif->p2p to set wifi_role to let firmware know current vif is running as GC or GO. And, allow GC to enter PS mode, but disallow to enter deep PS for now. Signed-off-by:
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Dian-Syuan Yang authored
Check IEEE80211_TX_CTL_NO_CCK_RATE flag to avoid sending frames with CCK rates in 2GHz band. In TX flow, add IEEE80211_TX_CTL_NO_CCK_RATE flag to check and get its lowest rate without CCK rates if the TX type is mgmt frames or data frames. Besides, the decision of phy rate and retry rate in P2P mode are also be handled. In P2P GO mode, it should send beacon of no CCK rates in its frame rate. Therefore, We add a condition to decide which rate is added to beacon content. Moreover, we avoid setting a mask of rates to be used for rate control selection before and after connection in P2P mode. Signed-off-by:
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Po Hao Huang authored
To support P2P in driver, we set P2P interface mode to the wiphy allocated for 802.11 PHY and add a change interface function to switch the interface type to P2P. Signed-off-by:
Po Hao Huang <phhuang@realtek.com> Signed-off-by:
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Daniel Golle authored
Instead of 0 set the correct value for BBP register 86 for MT7620. Reported-by:
Serge Vasilugin <vasilugin@yandex.ru> Signed-off-by:
Daniel Golle <daniel@makrotopia.org> Acked-by:
Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by:
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Daniel Golle authored
Instead of using the default value 33 (pci), set US_CYC_CNT init based on Programming guide: If available, set chipset bus clock with fallback to cpu clock/3. Reported-by:
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Daniel Golle authored
Set bbp66 for all chains of the MT7620. Reported-by:
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Daniel Golle authored
Set correct TX_SW_CFG1 MAC register as it is done also in v3 of the vendor driver[1]. [1]: https://gitlab.com/dm38/padavan-ng/-/blob/master/trunk/proprietary/rt_wifi/rtpci/3.0.X.X/mt76x2/chips/rt6352.c#L531Reported-by:
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Daniel Golle authored
Add missing configuration of the channel bandwidth filter to the channel setup function for MT7620. Reported-by:
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Daniel Golle authored
Move register access helper functions up to the head of the file so they can be used in all functions. Signed-off-by:
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Tomislav Požega authored
Add TX LOFT calibration from mtk driver. Signed-off-by:
Tomislav Požega <pozega.tomislav@gmail.com> Signed-off-by:
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Daniel Golle authored
The function rt2800_iq_calibrate is intended for Rt5592 only. Don't call it for MT7620 which has it's own calibration functions. Reported-by:
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Tomislav Požega authored
Add RXIQ calibration found in mtk driver. With old openwrt builds this gets us ~8Mbps more of RX bandwidth (test with iPA/eLNA layout). Signed-off-by:
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Tomislav Požega authored
Add RXDCOC calibration code from mtk driver. Signed-off-by:
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Tomislav Požega authored
Add r calibration code as found in mtk driver. Signed-off-by:
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Tomislav Požega authored
Add TX self calibration based on mtk driver. Signed-off-by:
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Daniel Golle authored
Move bbp_ready and rf_ready busy wait functions up in the code so they can more easily be used. Allow specifying register mask in rf_ready function which is useful for calibration routines which will be added in follow-up commits. Signed-off-by:
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Daniel Golle authored
Implement support for external PA connected to MT7620A. Signed-off-by:
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David Bauer authored
This adds a (currently missing) throughput LED trigger for the rt2x00 driver. Previously, LED triggers had to be assigned to the netdev, which was limited to a single VAP. Tested-by:
Christoph Krapp <achterin@googlemail.com> Signed-off-by:
David Bauer <mail@david-bauer.net> Acked-by:
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Tomislav Požega authored
Fix incorrect RF value encoded in EEPROM on devices with Ralink Rt5592 PCIe radio (a single chip 2T2R 802.11abgn solution). Signed-off-by:
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- 22 Sep, 2022 15 commits
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Kalle Valo authored
Merge tag 'iwlwifi-next-for-kalle-2022-09-18' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next iwlwifi patches for v6.1
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https://github.com/nbd168/wirelessKalle Valo authored
mt76 patches for 6.1 - fixes - suspend/resume improvements - tx status reporting improvements
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Ching-Te Ku authored
Since we maintain coexistence as shared code, so move coexistence version from chip specific attribute to a definition. Signed-off-by:
Ching-Te Ku <ku920601@realtek.com> Signed-off-by:
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Ching-Te Ku authored
Add control logic to operate Wi-Fi to BT scoreboard to control BT scan priority. And patch mechanism parameter to enhance Wi-Fi throughput while coexisting with BT profile & BT scan. Set PTA priority let Wi-Fi BT can RX at the same time. Signed-off-by:
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Ching-Te Ku authored
If Wi-Fi driver send Wi-Fi status to BT via scoreboard too frequent in a short moment, BT will loss some of them because of hardware response time. To avoid this issue, change the code flow. Summarize the scoreboard changes and if the value have changed, send the scoreboard to BT only once in a coexistence processing cycle. It also can help to reduce driver I/O. Signed-off-by:
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Ching-Te Ku authored
To prevent LNA2 change its gain during a Wi-Fi aggregation packet while GNT_BT pull high. Otherwise, changes of this gain will destroy the whole aggregation when Wi-Fi RX. Signed-off-by:
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Ching-Te Ku authored
WiFi/BT combo module could only have two antenna, namely WL_S0 and WL_S1. WiFi can use two antenna to TX/RX 2SS data, and BT can share one of the antenna. This patch is to allow WiFi to TX/RX 1SS data like ACK/RTS/CTS to improve Wi-Fi performance while coexisting with Bluetooth. Signed-off-by:
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Ching-Te Ku authored
This report is to record firmware call flow like notify events, and take actions. This can help to address if firmware flow is in expectation. Implement v1 parser to support 8852CE firmware report. Signed-off-by:
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Ching-Te Ku authored
This debug entry is to summarize important messages to quickly address problem types, such as firmware hang, C2H/H2C stuck, or too much occupation of BT A2DP. If unexpected something is addressed, we can dig the problem via other debug messages that provide more detail information. Signed-off-by:
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Ching-Te Ku authored
To analyze debug log quickly, use readable name in string format instead. Signed-off-by:
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Ching-Te Ku authored
'cysta' is short for statistics for cycles. That is a circular buffer to record snapshot status including beacon count, RX count, TX count etc. Since 8852CE Wi-Fi firmware report this statistics in different format, add v1 parser by this patch. Signed-off-by:
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Johannes Berg authored
There are two, just change them to have a "u8 data[]" type member, and add casts where needed. No binary changes. Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Reviewed-by:
Brian Norris <briannorris@chromium.org> Signed-off-by:
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Johannes Berg authored
Use "u8 bssid_data[]" with an appropriate cast. No binary changes. Signed-off-by:
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Johannes Berg authored
There are a number of these here, fix them by using appropriate casts. No binary changes. Signed-off-by:
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Duoming Zhou authored
There are sleep in atomic context bugs when uploading device dump data in mwifiex. The root cause is that dev_coredumpv could not be used in atomic contexts, because it calls dev_set_name which include operations that may sleep. The call tree shows execution paths that could lead to bugs: (Interrupt context) fw_dump_timer_fn mwifiex_upload_device_dump dev_coredumpv(..., GFP_KERNEL) dev_coredumpm() kzalloc(sizeof(*devcd), gfp); //may sleep dev_set_name kobject_set_name_vargs kvasprintf_const(GFP_KERNEL, ...); //may sleep kstrdup(s, GFP_KERNEL); //may sleep The corresponding fail log is shown below: [ 135.275938] usb 1-1: == mwifiex dump information to /sys/class/devcoredump start [ 135.281029] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:265 ... [ 135.293613] Call Trace: [ 135.293613] <IRQ> [ 135.293613] dump_stack_lvl+0x57/0x7d [ 135.293613] __might_resched.cold+0x138/0x173 [ 135.293613] ? dev_coredumpm+0xca/0x2e0 [ 135.293613] kmem_cache_alloc_trace+0x189/0x1f0 [ 135.293613] ? devcd_match_failing+0x30/0x30 [ 135.293613] dev_coredumpm+0xca/0x2e0 [ 135.293613] ? devcd_freev+0x10/0x10 [ 135.293613] dev_coredumpv+0x1c/0x20 [ 135.293613] ? devcd_match_failing+0x30/0x30 [ 135.293613] mwifiex_upload_device_dump+0x65/0xb0 [ 135.293613] ? mwifiex_dnld_fw+0x1b0/0x1b0 [ 135.293613] call_timer_fn+0x122/0x3d0 [ 135.293613] ? msleep_interruptible+0xb0/0xb0 [ 135.293613] ? lock_downgrade+0x3c0/0x3c0 [ 135.293613] ? __next_timer_interrupt+0x13c/0x160 [ 135.293613] ? lockdep_hardirqs_on_prepare+0xe/0x220 [ 135.293613] ? mwifiex_dnld_fw+0x1b0/0x1b0 [ 135.293613] __run_timers.part.0+0x3f8/0x540 [ 135.293613] ? call_timer_fn+0x3d0/0x3d0 [ 135.293613] ? arch_restore_msi_irqs+0x10/0x10 [ 135.293613] ? lapic_next_event+0x31/0x40 [ 135.293613] run_timer_softirq+0x4f/0xb0 [ 135.293613] __do_softirq+0x1c2/0x651 ... [ 135.293613] RIP: 0010:default_idle+0xb/0x10 [ 135.293613] RSP: 0018:ffff888006317e68 EFLAGS: 00000246 [ 135.293613] RAX: ffffffff82ad8d10 RBX: ffff888006301cc0 RCX: ffffffff82ac90e1 [ 135.293613] RDX: ffffed100d9ff1b4 RSI: ffffffff831ad140 RDI: ffffffff82ad8f20 [ 135.293613] RBP: 0000000000000003 R08: 0000000000000000 R09: ffff88806cff8d9b [ 135.293613] R10: ffffed100d9ff1b3 R11: 0000000000000001 R12: ffffffff84593410 [ 135.293613] R13: 0000000000000000 R14: 0000000000000000 R15: 1ffff11000c62fd2 ... [ 135.389205] usb 1-1: == mwifiex dump information to /sys/class/devcoredump end This patch uses delayed work to replace timer and moves the operations that may sleep into a delayed work in order to mitigate bugs, it was tested on Marvell 88W8801 chip whose port is usb and the firmware is usb8801_uapsta.bin. The following is the result after using delayed work to replace timer. [ 134.936453] usb 1-1: == mwifiex dump information to /sys/class/devcoredump start [ 135.043344] usb 1-1: == mwifiex dump information to /sys/class/devcoredump end As we can see, there is no bug now. Fixes: f5ecd02a ("mwifiex: device dump support for usb interface") Signed-off-by:Duoming Zhou <duoming@zju.edu.cn> Reviewed-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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- 19 Sep, 2022 1 commit
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Dan Carpenter authored
If request_partial_firmware_into_buf() fails then "firmware" is not initialized and the release_firmware(firmware) will crash. Fixes: deebea35 ("wifi: rtw89: early recognize FW feature to decide if chanctx") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
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