Re: rsi_91x: Failed to read status register on failed authentication

2017-12-15 Thread Alexey Brodkin 
Hi Amitkumar,

On Wed, 2017-12-06 at 12:43 +0530, Amitkumar Karwar wrote:
> On Tue, Dec 5, 2017 at 9:41 PM, Alexey Brodkin
>  wrote:
> > 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?
> > 
> 
> Could you enable driver debug zones and share dmesg log for analysis?
> 
> echo 0x > /sys/kernel/debug/phy0/debug_zone

Please find attached log.
Let me know if you need more details.

-Alexey
# 
# mount -t debugfs none /sys/kernel/debug/
# ifco# ifconfig 
loLink 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:60  
  UP BROADCAST MULTICAST  MTU:1500  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)

# wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant.conf && echo 0x > /s
ys/kernel/debug/phy0/debug_zone
Successfully initialized wpa_supplicant
rfkill: Cannot open RFKILL control device
# rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 407, Msg Type:2
rsi_91x: rsi_core_qos_processor: Queue number = 255
rsi_91x: rsi_core_qos_processor: No More Pkt
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 301, Msg Type:2
rsi_91x: rsi_core_qos_processor: Queue number = 255
rsi_91x: rsi_core_qos_processor: No More Pkt
rsi_91x: rsi_channel_change: Set channel: 2412 MHz type: 416 channel_no 1
rsi_91x: rsi_set_channel: Sending scan req frame
rsi_91x: rsi_core_qos_processor: Queue number = 4
rsi_91x: rsi_sdio_host_intf_write_pkt: Successfully written onto card
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 0, Msg Type:1
rsi_91x: rsi_handle_ta_confirm_type: Invalid TA confirm pkt received
rsi_91x: rsi_core_qos_processor: Queue number = 255
rsi_91x: rsi_core_qos_processor: No More Pkt
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_core_xmit: ===> Scheduling TX thead <===
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 274, Msg Type:2
rsi_91x: rsi_core_qos_processor: Queue number = 4
rsi_91x: rsi_prepare_mgmt_desc: blocking mgmt queue
rsi_91x: Mgmt queue blocked
rsi_91x: rsi_sdio_host_intf_write_pkt: Successfully written onto card
rsi_91x: rsi_core_qos_processor: Queue number = 255
rsi_91x: rsi_channel_change: Set channel: 2417 MHz type: 416 channel_no 2
rsi_91x: rsi_set_channel: Sending scan req frame
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 301, Msg Type:2
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 16, Msg Type:4
rsi_91x: rsi_mgmt_pkt_recv: Probe confirm received
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 346, Msg Type:2
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 175, Msg Type:2
rsi_91x: rsi_core_xmit: ===> Scheduling TX thead <===
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 340, Msg Type:2
rsi_91x: rsi_channel_change: Set channel: 2422 MHz type: 416 channel_no 3
rsi_91x: rsi_set_channel: Sending scan req frame
rsi_91x: rsi_core_qos_processor: No More Pkt
rsi_91x: rsi_core_qos_processor: Queue number = 4
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 301, Msg Type:2
rsi_91x: rsi_sdio_host_intf_write_pkt: Successfully written onto card
rsi_91x: rsi_core_xmit: ===> Scheduling TX thead <===
rsi_91x: rsi_core_qos_processor: Queue number = 4
rsi_91x: rsi_prepare_mgmt_desc: blocking mgmt queue
rsi_91x: Mgmt queue blocked
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt

Re: rsi_91x: Failed to read status register on failed authentication

2017-12-15 Thread Alexey Brodkin 
Hi Amitkumar,

On Wed, 2017-12-06 at 12:43 +0530, Amitkumar Karwar wrote:
> On Tue, Dec 5, 2017 at 9:41 PM, Alexey Brodkin
>  wrote:
> > 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?
> > 
> 
> Could you enable driver debug zones and share dmesg log for analysis?
> 
> echo 0x > /sys/kernel/debug/phy0/debug_zone

Please find attached log.
Let me know if you need more details.

-Alexey
# 
# mount -t debugfs none /sys/kernel/debug/
# ifco# ifconfig 
loLink 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:60  
  UP BROADCAST MULTICAST  MTU:1500  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)

# wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant.conf && echo 0x > /s
ys/kernel/debug/phy0/debug_zone
Successfully initialized wpa_supplicant
rfkill: Cannot open RFKILL control device
# rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 407, Msg Type:2
rsi_91x: rsi_core_qos_processor: Queue number = 255
rsi_91x: rsi_core_qos_processor: No More Pkt
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 301, Msg Type:2
rsi_91x: rsi_core_qos_processor: Queue number = 255
rsi_91x: rsi_core_qos_processor: No More Pkt
rsi_91x: rsi_channel_change: Set channel: 2412 MHz type: 416 channel_no 1
rsi_91x: rsi_set_channel: Sending scan req frame
rsi_91x: rsi_core_qos_processor: Queue number = 4
rsi_91x: rsi_sdio_host_intf_write_pkt: Successfully written onto card
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 0, Msg Type:1
rsi_91x: rsi_handle_ta_confirm_type: Invalid TA confirm pkt received
rsi_91x: rsi_core_qos_processor: Queue number = 255
rsi_91x: rsi_core_qos_processor: No More Pkt
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_core_xmit: ===> Scheduling TX thead <===
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 274, Msg Type:2
rsi_91x: rsi_core_qos_processor: Queue number = 4
rsi_91x: rsi_prepare_mgmt_desc: blocking mgmt queue
rsi_91x: Mgmt queue blocked
rsi_91x: rsi_sdio_host_intf_write_pkt: Successfully written onto card
rsi_91x: rsi_core_qos_processor: Queue number = 255
rsi_91x: rsi_channel_change: Set channel: 2417 MHz type: 416 channel_no 2
rsi_91x: rsi_set_channel: Sending scan req frame
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 301, Msg Type:2
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 16, Msg Type:4
rsi_91x: rsi_mgmt_pkt_recv: Probe confirm received
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 346, Msg Type:2
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 175, Msg Type:2
rsi_91x: rsi_core_xmit: ===> Scheduling TX thead <===
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 340, Msg Type:2
rsi_91x: rsi_channel_change: Set channel: 2422 MHz type: 416 channel_no 3
rsi_91x: rsi_set_channel: Sending scan req frame
rsi_91x: rsi_core_qos_processor: No More Pkt
rsi_91x: rsi_core_qos_processor: Queue number = 4
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 301, Msg Type:2
rsi_91x: rsi_sdio_host_intf_write_pkt: Successfully written onto card
rsi_91x: rsi_core_xmit: ===> Scheduling TX thead <===
rsi_91x: rsi_core_qos_processor: Queue number = 4
rsi_91x: rsi_prepare_mgmt_desc: blocking mgmt queue
rsi_91x: Mgmt queue blocked
rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4
rsi_91x: Pkt pending interrupt
rsi_91x:

Re: rsi_91x: Failed to read status register on failed authentication

2017-12-05 Thread Amitkumar Karwar 
On Tue, Dec 5, 2017 at 9:41 PM, Alexey Brodkin
 wrote:
> 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?
>

Could you enable driver debug zones and share dmesg log for analysis?

echo 0x > /sys/kernel/debug/phy0/debug_zone

Regards,
Amitkumar

Re: rsi_91x: Failed to read status register on failed authentication

2017-12-05 Thread Amitkumar Karwar 
On Tue, Dec 5, 2017 at 9:41 PM, Alexey Brodkin
 wrote:
> 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?
>

Could you enable driver debug zones and share dmesg log for analysis?

echo 0x > /sys/kernel/debug/phy0/debug_zone

Regards,
Amitkumar

rsi_91x: Failed to read status register on failed authentication

2017-12-05 Thread Alexey Brodkin 
2.1.137  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: 
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 (0x)
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
==

rsi_91x: Failed to read status register on failed authentication

2017-12-05 Thread Alexey Brodkin 
2.1.137  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: 
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 (0x)
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
==