Hi Amit,
I'm seeing quite a strange behavior of RedPine module.
It connects perfectly fine to one of access points but fails
to connect to another.
Moreover after that failure RSI driver starts to flood me with
messages saying:
--------------------->8--------------------
rsi_91x: rsi_sdio_check_buffer_status: Failed to read status register
--------------------->8--------------------
Below you may find details of my 2 experiments.
Note I use vanilla Linux kernel v4.14.4
Any ideas what could be wrong?
-Alexey
1. Working scenario
======================================================
# cat /etc/wpa_supplicant.conf
ctrl_interface=/var/run/wpa_supplicant
ap_scan=1
network={
ssid="YYY"
psk="zzz"
}
# iw wlan0 scan
BSS 80:19:34:1f:5e:50(on wlan0) -- associated
TSF: 248634601 usec (0d, 00:04:08)
freq: 2412
beacon interval: 100 TUs
capability: ESS Privacy ShortSlotTime (0x0411)
signal: -31.00 dBm
last seen: 0 ms ago
Information elements from Probe Response frame:
SSID: YYY
Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0
DS Parameter set: channel 1
ERP: Barker_Preamble_Mode
Extended supported rates: 24.0 36.0 48.0 54.0
RSN: * Version: 1
* Group cipher: CCMP
* Pairwise ciphers: CCMP
* Authentication suites: PSK
* Capabilities: 16-PTKSA-RC 1-GTKSA-RC (0x000c)
HT capabilities:
Capabilities: 0x1ec
HT20
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 3839 bytes
No DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 4 usec (0x05)
HT Max RX data rate: 300 Mbps
HT TX/RX MCS rate indexes supported: 0-15
HT operation:
* primary channel: 1
* secondary channel offset: no secondary
* STA channel width: 20 MHz
* RIFS: 0
* HT protection: no
* non-GF present: 1
* OBSS non-GF present: 0
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
Extended capabilities: Extended Channel Switching, 6
WMM: * Parameter version 1
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 2976 usec
* VO: CW 3-7, AIFSN 2, TXOP 1472 usec
WPS: * Version: 1.0
* Wi-Fi Protected Setup State: 2 (Configured)
* Response Type: 3 (AP)
* UUID: 97b29264-d9a5-5551-88f9-62fbdacb7162
* Manufacturer:
* Model:
* Model Number:
* Serial Number:
* Primary Device Type: 0-00000000-0
* Device name:
* Config methods: Display, Keypad
* Unknown TLV (0x1049, 6 bytes): 00 37 2a 00 01 20
# ifconfig wlan0 up
rsi_91x: ===> Interface UP <===
rsi_91x: rsi_disable_ps: Cannot accept disable PS in PS_NONE state
IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
# wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant.conf
Successfully initialized wpa_supplicant
rfkill: Cannot open RFKILL control device
# wlan0: authenticate with 80:19:34:1f:5e:50
wlan0: send auth to 80:19:34:1f:5e:50 (try 1/3)
wlan0: authenticated
wlan0: associate with 80:19:34:1f:5e:50 (try 1/3)
wlan0: RX AssocResp from 80:19:34:1f:5e:50 (capab=0x411 status=0 aid=1)
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
wlan0: associated
rsi_91x: rsi_hal_key_config: Cipher 0xfac04 key_type: 1 key_len: 16
rsi_91x: rsi_mac80211_set_key: RSI set_key
rsi_91x: rsi_hal_key_config: Cipher 0xfac04 key_type: 2 key_len: 16
rsi_91x: rsi_mac80211_set_key: RSI set_key
# udhcpc -i wlan0
udhcpc: started, v1.27.2
udhcpc: sending discover
udhcpc: sending select for 10.42.1.137
udhcpc: lease of 10.42.1.137 obtained, lease time 3600
deleting routers
adding dns 10.42.1.1
# ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
wlan0 Link encap:Ethernet HWaddr 00:23:A7:65:9B:94
inet addr:10.42.1.137 Bcast:10.42.1.255 Mask:255.255.255.0
inet6 addr: fe80::223:a7ff:fe65:9b94/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:5 errors:0 dropped:0 overruns:0 frame:0
TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1028 (1.0 KiB) TX bytes:1738 (1.6 KiB)
======================================================
2. Failing scenario:
======================================================
# cat /etc/wpa_supplicant.conf
ctrl_interface=/var/run/wpa_supplicant
ap_scan=1
network={
ssid="XXX"
psk="zzz"
}
# iw wlan0 scan
BSS 6c:3b:6b:7d:a1:46(on wlan0)
TSF: 251623213323 usec (2d, 21:53:43)
freq: 2427
beacon interval: 100 TUs
capability: ESS Privacy ShortSlotTime (0x0411)
signal: -65.00 dBm
last seen: 0 ms ago
Information elements from Probe Response frame:
SSID: XXX
Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0
DS Parameter set: channel 4
ERP: <no flags>
HT capabilities:
Capabilities: 0x106e
HT20/HT40
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
No RX STBC
Max AMSDU length: 3839 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: No restriction (0x00)
HT RX MCS rate indexes supported: 0-15
HT TX MCS rate indexes are undefined
RSN: * Version: 1
* Group cipher: CCMP
* Pairwise ciphers: CCMP TKIP
* Authentication suites: PSK
* Capabilities: 1-PTKSA-RC 1-GTKSA-RC (0x0000)
Extended supported rates: 24.0 36.0 48.0 54.0
HT operation:
* primary channel: 4
* secondary channel offset: above
* STA channel width: any
* RIFS: 0
* HT protection: no
* non-GF present: 0
* OBSS non-GF present: 0
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
WMM: * Parameter version 1
* u-APSD
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
# ifconfig wlan0 up
rsi_91x: ===> Interface UP <===
rsi_91x: rsi_disable_ps: Cannot accept disable PS in PS_NONE state
IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
# wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant.conf
Successfully initialized wpa_supplicant
rfkill: Cannot open RFKILL control device
# wlan0: authenticate with 6c:3b:6b:7d:a1:46
wlan0: send auth to 6c:3b:6b:7d:a1:46 (try 1/3)
wlan0: send auth to 6c:3b:6b:7d:a1:46 (try 2/3)
wlan0: send auth to 6c:3b:6b:7d:a1:46 (try 3/3)
rsi_91x: rsi_sdio_write_register_multiple: Synch Cmd53 write failed -16
rsi_91x: rsi_sdio_host_intf_write_pkt: Unable to write onto the card: -16
rsi_91x: rsi_send_mgmt_pkt: Failed to write the packet
wlan0: authentication with 6c:3b:6b:7d:a1:46 timed out
wlan0: authenticate with 6c:3b:6b:76:e0:ab
wlan0: send auth to 6c:3b:6b:76:e0:ab (try 1/3)
wlan0: send auth to 6c:3b:6b:76:e0:ab (try 2/3)
wlan0: send auth to 6c:3b:6b:76:e0:ab (try 3/3)
rsi_91x: rsi_sdio_check_buffer_status: Failed to read status register
wlan0: authentication with 6c:3b:6b:76:e0:ab timed out
rsi_91x: rsi_sdio_check_buffer_status: Failed to read status register
rsi_91x: rsi_sdio_check_buffer_status: Failed to read status register
rsi_91x: rsi_sdio_check_buffer_status: Failed to read status register
rsi_91x: rsi_sdio_check_buffer_status: Failed to read status register
rsi_91x: rsi_sdio_check_buffer_status: Failed to read status register
rsi_91x: rsi_sdio_check_buffer_status: Failed to read status register
rsi_91x: rsi_sdio_check_buffer_status: Failed to read status register
rsi_91x: rsi_sdio_check_buffer_status: Failed to read status register
rsi_91x: rsi_sdio_check_buffer_status: Failed to read status register
rsi_91x: rsi_sdio_check_buffer_status: Failed to read status register
rsi_91x: rsi_sdio_check_buffer_status: Failed to read status register
======================================================
