Re: [PATCH 1/4] rtlwifi: rtl8723ae: Take the FW LPS mode handling out

[Bernd Edlinger]

On 1/5/19 3:44 AM, Larry Finger wrote:
> On 1/4/19 6:48 AM, Bernd Edlinger wrote:
>> This appears to trigger a firmware bug and causes severe
>> problems with rtl8723ae PCI devices.
>>
>> When the power save mode is activated for longer periods
>> of time the firmware stops to receive any packets.
>>
>> This problem was exposed by commit 873ffe154ae0 ("rtlwifi:
>> Fix logic error in enter/exit power-save mode").
>>
>> Previously the power save mode was only active rarely and
>> only for a short time so that the problem was not noticeable.
>>
>> Signed-off-by: Bernd Edlinger <bernd.edlinger@xxxxxxxxxx>
>> ---
> 
> While the Realtek firmware group has a chance to look for a bug, I would like you to perform a couple of tests on the original code.
> 
> The driver has three module parameters that affect power save. The 'modinfo rtl8723ae' command lists them as
> 
> parm:ÂÂ ips:Set to 0 to not use link power save (default 1) (bool)
> parm:ÂÂ swlps:Set to 1 to use SW control power save (default 0) (bool)
> parm:ÂÂ fwlps:Set to 1 to use FW control power save (default 1) (bool)
> 
> If you were to load rtl8723ae with 'ips=0', does it still fail?
> If you were to load the driver with 'swlps=1 fwlps=0', does it still fail?
> 

this does not work:

modprobe rtl8723ae debug_mask=0xFFFFFFFF debug_level=5 ips=0

tail -f /var/log/syslog|grep "AP off" 
Jan  5 11:42:06 w-ed kernel: [ 7267.229713] rtlwifi: :<0> AP off for 2 s
Jan  5 11:42:08 w-ed kernel: [ 7269.276761] rtlwifi: :<0> AP off for 4 s
Jan  5 11:42:10 w-ed kernel: [ 7271.323758] rtlwifi: :<0> AP off for 6 s
Jan  5 11:42:12 w-ed kernel: [ 7273.370759] rtlwifi: :<0> AP off for 8 s
Jan  5 11:42:14 w-ed kernel: [ 7275.417753] rtlwifi: :<0> AP off for 10 s
Jan  5 11:42:14 w-ed kernel: [ 7275.417754] rtlwifi: AP off, try to reconnect now
Jan  5 11:42:28 w-ed kernel: [ 7289.746676] rtlwifi: :<0> AP off for 2 s
Jan  5 11:42:40 w-ed kernel: [ 7302.028327] rtlwifi: :<0> AP off for 2 s
Jan  5 11:42:43 w-ed kernel: [ 7304.075327] rtlwifi: :<0> AP off for 4 s
Jan  5 11:42:45 w-ed kernel: [ 7306.122330] rtlwifi: :<0> AP off for 6 s
Jan  5 11:42:47 w-ed kernel: [ 7308.169292] rtlwifi: :<0> AP off for 8 s
Jan  5 11:42:49 w-ed kernel: [ 7310.216236] rtlwifi: :<0> AP off for 10 s
Jan  5 11:42:49 w-ed kernel: [ 7310.216238] rtlwifi: AP off, try to reconnect now
Jan  5 11:43:05 w-ed kernel: [ 7326.592222] rtlwifi: :<0> AP off for 2 s
Jan  5 11:43:07 w-ed kernel: [ 7328.639076] rtlwifi: :<0> AP off for 4 s
Jan  5 11:43:09 w-ed kernel: [ 7330.686220] rtlwifi: :<0> AP off for 6 s
Jan  5 11:43:11 w-ed kernel: [ 7332.733078] rtlwifi: :<0> AP off for 8 s
Jan  5 11:43:13 w-ed kernel: [ 7334.779988] rtlwifi: :<0> AP off for 10 s
Jan  5 11:43:13 w-ed kernel: [ 7334.779989] rtlwifi: AP off, try to reconnect now
Jan  5 11:43:28 w-ed kernel: [ 7349.108839] rtlwifi: :<0> AP off for 2 s
Jan  5 11:43:30 w-ed kernel: [ 7351.155837] rtlwifi: :<0> AP off for 4 s
Jan  5 11:43:32 w-ed kernel: [ 7353.202838] rtlwifi: :<0> AP off for 6 s
Jan  5 11:43:42 w-ed kernel: [ 7363.437779] rtlwifi: :<0> AP off for 2 s
Jan  5 11:43:46 w-ed kernel: [ 7367.531622] rtlwifi: :<0> AP off for 2 s
Jan  5 11:43:48 w-ed kernel: [ 7369.578597] rtlwifi: :<0> AP off for 4 s
Jan  5 11:43:50 w-ed kernel: [ 7371.625694] rtlwifi: :<0> AP off for 6 s
Jan  5 11:43:52 w-ed kernel: [ 7373.672691] rtlwifi: :<0> AP off for 8 s
Jan  5 11:43:54 w-ed kernel: [ 7375.719690] rtlwifi: :<0> AP off for 10 s
Jan  5 11:43:54 w-ed kernel: [ 7375.719691] rtlwifi: AP off, try to reconnect now
Jan  5 11:44:09 w-ed kernel: [ 7390.048406] rtlwifi: :<0> AP off for 2 s
Jan  5 11:44:11 w-ed kernel: [ 7392.095678] rtlwifi: :<0> AP off for 4 s
Jan  5 11:44:13 w-ed kernel: [ 7394.142349] rtlwifi: :<0> AP off for 6 s
Jan  5 11:44:15 w-ed kernel: [ 7396.189352] rtlwifi: :<0> AP off for 8 s
Jan  5 11:44:17 w-ed kernel: [ 7398.236352] rtlwifi: :<0> AP off for 10 s
Jan  5 11:44:17 w-ed kernel: [ 7398.236353] rtlwifi: AP off, try to reconnect now
Jan  5 11:44:31 w-ed kernel: [ 7412.565079] rtlwifi: :<0> AP off for 2 s
Jan  5 11:44:33 w-ed kernel: [ 7414.612167] rtlwifi: :<0> AP off for 4 s
Jan  5 11:44:35 w-ed kernel: [ 7416.659101] rtlwifi: :<0> AP off for 6 s
Jan  5 11:44:37 w-ed kernel: [ 7418.706035] rtlwifi: :<0> AP off for 8 s
Jan  5 11:44:39 w-ed kernel: [ 7420.753100] rtlwifi: :<0> AP off for 10 s
Jan  5 11:44:39 w-ed kernel: [ 7420.753101] rtlwifi: AP off, try to reconnect now
Jan  5 11:44:54 w-ed kernel: [ 7435.081860] rtlwifi: :<0> AP off for 2 s
Jan  5 11:44:56 w-ed kernel: [ 7437.128857] rtlwifi: :<0> AP off for 4 s
Jan  5 11:45:08 w-ed kernel: [ 7449.410653] rtlwifi: :<0> AP off for 2 s
Jan  5 11:45:10 w-ed kernel: [ 7451.457650] rtlwifi: :<0> AP off for 4 s
Jan  5 11:45:12 w-ed kernel: [ 7453.504647] rtlwifi: :<0> AP off for 6 s
Jan  5 11:45:14 w-ed kernel: [ 7455.551607] rtlwifi: :<0> AP off for 8 s
Jan  5 11:45:16 w-ed kernel: [ 7457.598645] rtlwifi: :<0> AP off for 10 s
Jan  5 11:45:16 w-ed kernel: [ 7457.598646] rtlwifi: AP off, try to reconnect now


but this works:

modprobe rtl8723ae debug_mask=0xFFFFFFFF debug_level=5 swlps=1 fwlps=0

and this works too:

modprobe rtl8723ae debug_mask=0xFFFFFFFF debug_level=5 ips=0 swlps=1 fwlps=0


so I think I should change the default of swlps and fwlps with this patch,
unless someone comes up with a better solution?


Thanks
Bernd.

FYI: complete trace of one of the outages below:

Jan  5 11:45:02 w-ed kernel: [ 7443.362985] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:02 w-ed kernel: [ 7443.465386] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:02 w-ed kernel: [ 7443.567782] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:02 w-ed kernel: [ 7443.670183] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:02 w-ed kernel: [ 7443.772581] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:02 w-ed kernel: [ 7443.874981] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:02 w-ed kernel: [ 7443.977379] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:03 w-ed kernel: [ 7444.079779] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:03 w-ed kernel: [ 7444.182176] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:03 w-ed kernel: [ 7444.284577] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:03 w-ed kernel: [ 7444.386975] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:03 w-ed kernel: [ 7444.489375] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:03 w-ed kernel: [ 7444.591774] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:03 w-ed kernel: [ 7444.694171] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:03 w-ed kernel: [ 7444.796570] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:03 w-ed kernel: [ 7444.898969] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:04 w-ed kernel: [ 7445.001369] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:04 w-ed kernel: [ 7445.103768] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:04 w-ed kernel: [ 7445.206167] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:04 w-ed kernel: [ 7445.308566] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:04 w-ed kernel: [ 7445.316563] rtlwifi: :<0> Enter 802.11 power save mode...
Jan  5 11:45:04 w-ed kernel: [ 7445.316568] rtlwifi: :<0> FW LPS enter ps_mode:3
Jan  5 11:45:04 w-ed kernel: [ 7445.316572] rtlwifi: :<0> FW LPS mode = 3
Jan  5 11:45:04 w-ed kernel: [ 7445.316576] rtlwifi: In process "kworker/0:1" (pid 12): rtl8723e_set_fw_rsvdpagepkt(): u1_h2c_set_pwrmode
Jan  5 11:45:04 w-ed kernel: [ 7445.316576]
Jan  5 11:45:04 w-ed kernel: [ 7445.316577] rtlwifi: :<0> come in
Jan  5 11:45:04 w-ed kernel: [ 7445.316618] rtlwifi: :<0> Write element_id box_reg( 1dc) =  1
Jan  5 11:45:04 w-ed kernel: [ 7445.316628] rtlwifi: :<0> pHalData->last_hmeboxnum  = 0
Jan  5 11:45:04 w-ed kernel: [ 7445.316629] rtlwifi: :<0> go out
Jan  5 11:45:04 w-ed kernel: [ 7445.410964] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:06 w-ed kernel: [ 7447.363540] rtlwifi: :<0> Enter 802.11 power save mode...
Jan  5 11:45:06 w-ed kernel: [ 7447.363545] rtlwifi: :<0> FW LPS enter ps_mode:3
Jan  5 11:45:06 w-ed kernel: [ 7447.363549] rtlwifi: :<0> FW LPS mode = 3
Jan  5 11:45:06 w-ed kernel: [ 7447.363552] rtlwifi: In process "kworker/0:1" (pid 12): rtl8723e_set_fw_rsvdpagepkt(): u1_h2c_set_pwrmode
Jan  5 11:45:06 w-ed kernel: [ 7447.363552]
Jan  5 11:45:06 w-ed kernel: [ 7447.363554] rtlwifi: :<0> come in
Jan  5 11:45:06 w-ed kernel: [ 7447.363594] rtlwifi: :<0> Write element_id box_reg( 1d0) =  1
Jan  5 11:45:06 w-ed kernel: [ 7447.363605] rtlwifi: :<0> pHalData->last_hmeboxnum  = 1
Jan  5 11:45:06 w-ed kernel: [ 7447.363606] rtlwifi: :<0> go out
Jan  5 11:45:08 w-ed kernel: [ 7449.410541] rtlwifi: :<0> Enter 802.11 power save mode...
Jan  5 11:45:08 w-ed kernel: [ 7449.410546] rtlwifi: :<0> FW LPS enter ps_mode:3
Jan  5 11:45:08 w-ed kernel: [ 7449.410550] rtlwifi: :<0> FW LPS mode = 3
Jan  5 11:45:08 w-ed kernel: [ 7449.410553] rtlwifi: In process "kworker/0:1" (pid 12): rtl8723e_set_fw_rsvdpagepkt(): u1_h2c_set_pwrmode
Jan  5 11:45:08 w-ed kernel: [ 7449.410553]
Jan  5 11:45:08 w-ed kernel: [ 7449.410555] rtlwifi: :<0> come in
Jan  5 11:45:08 w-ed kernel: [ 7449.410595] rtlwifi: :<0> Write element_id box_reg( 1d4) =  1
Jan  5 11:45:08 w-ed kernel: [ 7449.410606] rtlwifi: :<0> pHalData->last_hmeboxnum  = 2
Jan  5 11:45:08 w-ed kernel: [ 7449.410607] rtlwifi: :<0> go out
Jan  5 11:45:08 w-ed kernel: [ 7449.410653] rtlwifi: :<0> AP off for 2 s
Jan  5 11:45:10 w-ed kernel: [ 7451.457537] rtlwifi: :<0> Enter 802.11 power save mode...
Jan  5 11:45:10 w-ed kernel: [ 7451.457542] rtlwifi: :<0> FW LPS enter ps_mode:3
Jan  5 11:45:10 w-ed kernel: [ 7451.457546] rtlwifi: :<0> FW LPS mode = 3
Jan  5 11:45:10 w-ed kernel: [ 7451.457550] rtlwifi: In process "kworker/0:1" (pid 12): rtl8723e_set_fw_rsvdpagepkt(): u1_h2c_set_pwrmode
Jan  5 11:45:10 w-ed kernel: [ 7451.457550]
Jan  5 11:45:10 w-ed kernel: [ 7451.457552] rtlwifi: :<0> come in
Jan  5 11:45:10 w-ed kernel: [ 7451.457593] rtlwifi: :<0> Write element_id box_reg( 1d8) =  1
Jan  5 11:45:10 w-ed kernel: [ 7451.457603] rtlwifi: :<0> pHalData->last_hmeboxnum  = 3
Jan  5 11:45:10 w-ed kernel: [ 7451.457604] rtlwifi: :<0> go out
Jan  5 11:45:10 w-ed kernel: [ 7451.457650] rtlwifi: :<0> AP off for 4 s
Jan  5 11:45:12 w-ed kernel: [ 7453.504535] rtlwifi: :<0> Enter 802.11 power save mode...
Jan  5 11:45:12 w-ed kernel: [ 7453.504540] rtlwifi: :<0> FW LPS enter ps_mode:3
Jan  5 11:45:12 w-ed kernel: [ 7453.504544] rtlwifi: :<0> FW LPS mode = 3
Jan  5 11:45:12 w-ed kernel: [ 7453.504547] rtlwifi: In process "kworker/0:1" (pid 12): rtl8723e_set_fw_rsvdpagepkt(): u1_h2c_set_pwrmode
Jan  5 11:45:12 w-ed kernel: [ 7453.504547]
Jan  5 11:45:12 w-ed kernel: [ 7453.504549] rtlwifi: :<0> come in
Jan  5 11:45:12 w-ed kernel: [ 7453.504589] rtlwifi: :<0> Write element_id box_reg( 1dc) =  1
Jan  5 11:45:12 w-ed kernel: [ 7453.504600] rtlwifi: :<0> pHalData->last_hmeboxnum  = 0
Jan  5 11:45:12 w-ed kernel: [ 7453.504601] rtlwifi: :<0> go out
Jan  5 11:45:12 w-ed kernel: [ 7453.504647] rtlwifi: :<0> AP off for 6 s
Jan  5 11:45:14 w-ed kernel: [ 7455.551495] rtlwifi: :<0> Enter 802.11 power save mode...
Jan  5 11:45:14 w-ed kernel: [ 7455.551500] rtlwifi: :<0> FW LPS enter ps_mode:3
Jan  5 11:45:14 w-ed kernel: [ 7455.551504] rtlwifi: :<0> FW LPS mode = 3
Jan  5 11:45:14 w-ed kernel: [ 7455.551507] rtlwifi: In process "kworker/0:1" (pid 12): rtl8723e_set_fw_rsvdpagepkt(): u1_h2c_set_pwrmode
Jan  5 11:45:14 w-ed kernel: [ 7455.551507]
Jan  5 11:45:14 w-ed kernel: [ 7455.551509] rtlwifi: :<0> come in
Jan  5 11:45:14 w-ed kernel: [ 7455.551550] rtlwifi: :<0> Write element_id box_reg( 1d0) =  1
Jan  5 11:45:14 w-ed kernel: [ 7455.551560] rtlwifi: :<0> pHalData->last_hmeboxnum  = 1
Jan  5 11:45:14 w-ed kernel: [ 7455.551562] rtlwifi: :<0> go out
Jan  5 11:45:14 w-ed kernel: [ 7455.551607] rtlwifi: :<0> AP off for 8 s
Jan  5 11:45:16 w-ed kernel: [ 7457.598533] rtlwifi: :<0> Enter 802.11 power save mode...
Jan  5 11:45:16 w-ed kernel: [ 7457.598538] rtlwifi: :<0> FW LPS enter ps_mode:3
Jan  5 11:45:16 w-ed kernel: [ 7457.598542] rtlwifi: :<0> FW LPS mode = 3
Jan  5 11:45:16 w-ed kernel: [ 7457.598545] rtlwifi: In process "kworker/0:1" (pid 12): rtl8723e_set_fw_rsvdpagepkt(): u1_h2c_set_pwrmode
Jan  5 11:45:16 w-ed kernel: [ 7457.598545]
Jan  5 11:45:16 w-ed kernel: [ 7457.598547] rtlwifi: :<0> come in
Jan  5 11:45:16 w-ed kernel: [ 7457.598588] rtlwifi: :<0> Write element_id box_reg( 1d4) =  1
Jan  5 11:45:16 w-ed kernel: [ 7457.598598] rtlwifi: :<0> pHalData->last_hmeboxnum  = 2
Jan  5 11:45:16 w-ed kernel: [ 7457.598599] rtlwifi: :<0> go out
Jan  5 11:45:16 w-ed kernel: [ 7457.598645] rtlwifi: :<0> AP off for 10 s
Jan  5 11:45:16 w-ed kernel: [ 7457.598646] rtlwifi: AP off, try to reconnect now
Jan  5 11:45:16 w-ed kernel: [ 7457.598765] wlan0: Connection to AP 44:4e:6d:66:4c:d5 lost
Jan  5 11:45:16 w-ed kernel: [ 7457.608457] rtlwifi: :<200>
Jan  5 11:45:16 w-ed kernel: [ 7457.608502] rtlwifi: :<0> IEEE80211_AMPDU_RX_STOP:TID:0
Jan  5 11:45:16 w-ed kernel: [ 7457.608506] rtlwifi: :<0> on ra = 44:4e:6d:66:4c:d5 tid = 0
Jan  5 11:45:16 w-ed kernel: [ 7457.608510] rtlwifi: :<0> IEEE80211_AMPDU_RX_STOP:TID:6
Jan  5 11:45:16 w-ed kernel: [ 7457.608513] rtlwifi: :<0> on ra = 44:4e:6d:66:4c:d5 tid = 6
Jan  5 11:45:16 w-ed kernel: [ 7457.608549] rtlwifi: :<10000> Manage ok interrupt!
Jan  5 11:45:16 w-ed kernel: [ 7457.608559] rtlwifi: :<10000> new ring->idx:124, free: skb_queue_len:0, free: seq:fb0
Jan  5 11:45:16 w-ed kernel: [ 7457.614945] rtlwifi: :<10000> Rx ok interrupt!
Jan  5 11:45:16 w-ed kernel: [ 7457.614966] rtlwifi: :<10000> regaddr(0x824), bitmask(0x200)
Jan  5 11:45:16 w-ed kernel: [ 7457.615004] rtlwifi: :<10000> BBR MASK=0x200 Addr[0x824]=0x80390004
Jan  5 11:45:16 w-ed kernel: [ 7457.620509] rtlwifi: :<0> IEEE80211_AMPDU_TX_STOP: TID:0
Jan  5 11:45:16 w-ed kernel: [ 7457.620515] rtlwifi: :<0> on ra = 44:4e:6d:66:4c:d5 tid = 0
Jan  5 11:45:16 w-ed wpa_supplicant[1424]: nl80211: Event message available
Jan  5 11:45:16 w-ed wpa_supplicant[1424]: nl80211: Drv Event 20 (NL80211_CMD_DEL_STATION) received for wlan0
Jan  5 11:45:16 w-ed wpa_supplicant[1424]: nl80211: Delete station 44:4e:6d:66:4c:d5
Jan  5 11:45:16 w-ed kernel: [ 7457.636371] rtlwifi: :<0> Disabling hardware based encryption for keyidx: 0, mac: 44:4e:6d:66:4c:d5
Jan  5 11:45:16 w-ed kernel: [ 7457.636378] rtlwifi: :<0> alg:CCMP
Jan  5 11:45:16 w-ed kernel: [ 7457.636381] rtlwifi: :<0> set enable_hw_sec, key_type:4(OPEN:0 WEP40:1 TKIP:2 AES:4 WEP104:5)
Jan  5 11:45:16 w-ed kernel: [ 7457.636383] rtlwifi: :<0> PairwiseEncAlgorithm = 4 GroupEncAlgorithm = 4
Jan  5 11:45:16 w-ed kernel: [ 7457.636422] rtlwifi: :<0> The SECR-value cc
Jan  5 11:45:16 w-ed kernel: [ 7457.636427] rtlwifi: :<0> disable key delete one entry
Jan  5 11:45:16 w-ed kernel: [ 7457.636429] rtlwifi: :<0> key_idx:0
Jan  5 11:45:16 w-ed kernel: [ 7457.636471] rtlwifi: :<0> rtl_cam_delete_one_entry(): WRITE A4: 0
Jan  5 11:45:16 w-ed kernel: [ 7457.636473] rtlwifi: :<0> rtl_cam_delete_one_entry(): WRITE A0: 80010000
Jan  5 11:45:16 w-ed kernel: [ 7457.636542] rtlwifi: :<0> Remove sta addr is 44:4e:6d:66:4c:d5
Jan  5 11:45:16 w-ed kernel: [ 7457.636627] rtlwifi: :<0> Busy Traffic,Leave 802.11 power save..
Jan  5 11:45:16 w-ed kernel: [ 7457.636629] rtlwifi: :<0> FW LPS leave ps_mode:0
Jan  5 11:45:16 w-ed kernel: [ 7457.636675] rtlwifi: :<0> FW LPS mode = 0
Jan  5 11:45:16 w-ed kernel: [ 7457.636678] rtlwifi: In process "kworker/u8:4" (pid 6479): rtl8723e_set_fw_rsvdpagepkt(): u1_h2c_set_pwrmode
Jan  5 11:45:16 w-ed kernel: [ 7457.636678]
Jan  5 11:45:16 w-ed kernel: [ 7457.636680] rtlwifi: :<0> come in
Jan  5 11:45:16 w-ed kernel: [ 7457.636721] rtlwifi: :<0> Write element_id box_reg( 1d8) =  1
Jan  5 11:45:16 w-ed kernel: [ 7457.636769] rtlwifi: :<0> pHalData->last_hmeboxnum  = 3
Jan  5 11:45:16 w-ed kernel: [ 7457.636771] rtlwifi: :<0> go out
Jan  5 11:45:16 w-ed kernel: [ 7457.636777] rtlwifi: :<0> bssid = 44-4e-6d-66-4c-d5
Jan  5 11:45:16 w-ed kernel: [ 7457.636779] rtlwifi: :<0> BSS_CHANGED_UN_ASSOC
Jan  5 11:45:16 w-ed kernel: [ 7457.636820] rtlwifi: :<0> clear 0x550 when set HW_VAR_MEDIA_STATUS
Jan  5 11:45:16 w-ed kernel: [ 7457.636822] rtlwifi: :<0> Set Network type to STA!
Jan  5 11:45:16 w-ed kernel: [ 7457.636876] rtlwifi: :<0> ledaction 3,
Jan  5 11:45:16 w-ed kernel: [ 7457.636878] rtlwifi: :<0> LedAddr:4E ledpin=1
Jan  5 11:45:16 w-ed kernel: [ 7457.636926] rtlwifi: :<0> come in
Jan  5 11:45:16 w-ed kernel: [ 7457.636932] rtlwifi: :<0> Write element_id box_reg( 1dc) =  2
Jan  5 11:45:16 w-ed kernel: [ 7457.636944] rtlwifi: :<0> pHalData->last_hmeboxnum  = 0
Jan  5 11:45:16 w-ed kernel: [ 7457.636945] rtlwifi: :<0> go out
Jan  5 11:45:16 w-ed kernel: [ 7457.636949] rtlwifi: :<0> BSS_CHANGED_ERP_CTS_PROT
Jan  5 11:45:16 w-ed kernel: [ 7457.636951] rtlwifi: :<0> BSS_CHANGED_ERP_PREAMBLE use short preamble:0
Jan  5 11:45:16 w-ed kernel: [ 7457.636990] rtlwifi: :<0> BSS_CHANGED_ERP_SLOT
Jan  5 11:45:16 w-ed kernel: [ 7457.636992] rtlwifi: :<0> HW_VAR_SLOT_TIME 14
Jan  5 11:45:16 w-ed kernel: [ 7457.636998] rtlwifi: :<0> BSS_CHANGED_HT
Jan  5 11:45:16 w-ed kernel: [ 7457.637002] rtlwifi: :<0> Set HW_VAR_SHORTGI_DENSITY: 0x7
Jan  5 11:45:16 w-ed kernel: [ 7457.637049] rtlwifi: :<0> Set HW_VAR_AMPDU_FACTOR: 0xf
Jan  5 11:45:16 w-ed kernel: [ 7457.637052] rtlwifi: :<0> Set HW_VAR_AMPDU_MIN_SPACE: 0x7
Jan  5 11:45:16 w-ed kernel: [ 7457.637106] rtlwifi: :<0> bssid: 00:00:00:00:00:00
Jan  5 11:45:16 w-ed kernel: [ 7457.637160] rtlwifi: :<0> switch to channel13

now after time index 7457.614945 the "Rx ok interrupt" start again.