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Original question:

Linux/WL1837MOD: Latency/PING jumps from low latency (5ms) to high latency in steps of approx. 120ms

Linux/WL1835MOD: WL1835MOD large ping times every 10 seconds

Flavio Ribeiro
Prodigy 60 points
Part Number: WL1835MOD
Other Parts Discussed in Thread: WL1271

Tool/software: Linux

Hello,

I have two Beaglebone Wireless boards set up. The first set up as an AP, the second connecting to the first. Having one ping the other results in ping times that frequently go to 110ms and 220ms.

I've found several threads reporting what appears to be the same or similar issue, with no consistent resolution:

e2e.ti.com/.../2371429
e2e.ti.com/.../728430
e2e.ti.com/.../419894
e2e.ti.com/.../678797
e2e.ti.com/.../730376

Below is the plot of response times for "ping <hostname> -i 0.1":

Note the ping times spike consistently every 100 packets, or 10 seconds.



Repro steps:

Beaglebone Black with Debian 9.5 2018-10-07 IoT available here:
beagleboard.org/latest-images

This image comes with kernel 4.14.71-ti-r80 and wl18xx-fw-4.bin version 8.9.0.0.79.

These do not resolve the issue (suggested by TI in other threads)
    iw wlan0 set power_save off
    echo 0 > /sys/kernel/debug/ieee80211/phy0/wlcore/sleep_auth

Also do not resolve
    Disabling bluetooth
    Upgrading to kernel 4.19.24 from github.com/.../linux
    Rebuilding kernel 4.19.24 with CONFIG_CFG80211_DEFAULT_PS=n

Can you please investigate?

Thank you.

  • 0
    Prodigy 60 points
    After looking at debug messages for the wl18xx driver, it became clear that the high ping times were associated with these messages:

    [ 1848.443504] wlcore: cmd configure (47)

    Which led me to the ACX_BA_SESSION_RX_SETUP command, configured in a call to wl12xx_acx_set_ba_receiver_session(), in turn called by wl1271_op_ampdu_action().

    I patched the module to disable RX AMPDU by keeping wlvif->ba_support = false. This normalized the ping time, which now only goes up during wifi scans.

    It's intuitive that AMPDU increases latency. However, 100-200ms of added latency is huge and unexpected. Could investigate whether there's a bug hiding in the AMPDU implementation, and confirm my findings above?

    My application is latency critical and having the ability to disable AMPDU (without rebuilding the driver) would also be helpful. As is, I'll need to build a custom driver.

    Thanks.
  • 0 in reply to Flavio Ribeiro
    TI__Mastermind 35795 points
    Hi Flavio ,
    We normally do not do our testing on debian but rather do it on our linux sdk . Did you test throughput using iperf ? disabling BA session might result in lower throughput . Do you notice BA session exchange in sniffer trace every 10 secs ?

    Saurabh
  • 0 in reply to S
    Prodigy 60 points
    Hi Saurabh,

    I did run iperf3 and throughput went down substantially, but is still good enough for my application. Of course I'd prefer the nominal throughput but 100-200ms of latency won't work for me.

    I have no experience with sniffing 802.11. I did try using wireshark with my 802.11 adapter in monitor mode, but it didn't capture management frames. Wireshark's documentation states most drivers don't forward management frames to the packet capture layer, so this might be the situation.

    If you can suggest a method to sniff BA session exchanges (perhaps with the beaglebone black wireless itself), I'd be open to trying it.

    My main goal is to ensure the driver will work appropriately. Based on the code, can you inform if my patch is disabling BA entirely, or just the driver's handling of it?

    Thanks,
    Flavio
  • 0 in reply to Flavio Ribeiro
    TI__Mastermind 20285 points
    Hi Flavio,

    A single ping reply time is not really a good indication of anything as the system has enough time to idle, enter power save, switch to another process/thread in between pings.
    When the station does enter power save it will only wakeup for the next beacon from the AP. Hence a delay is expected.
    You can disable power save:
    iw wlan0 set power_save off

    and see if it makes a change.
    But in any case I strongly advise against making code changes to the drivers.

    Best Regards,
    Eyal
  • 0 in reply to Eyal Reizer
    Prodigy 60 points

    Hi Eyal,

    Setting power saving mode (iw wlan0 set power_save off) does not resolve the issue -- please see my original post for things I tried. The graph I show is for power_save = off. In general, disabling power_save and ELP helps with latency but not with this specific issue.

    I too would like to avoid a driver change, especially since I'm not aware of what TI firmware does or expects. But I need low latency too (100ms pings are not ok), so I need TI's help to determine root cause and design the correct solution.

    Thanks,

    Flavio

  • 0 in reply to Flavio Ribeiro
    Prodigy 60 points

    Today I experimented with changing the wl18xx-conf.bin file by setting core.ht.rx_ba_win_size, core.ht.rx_ba_win_size and core.ht.tx_ba_tid_bitmap to 0x00 and saw the same improvement in ping latency as with modifying the driver. In other words, ping time distribution looks about the same in the two cases below:

    1) setting core.ht.rx_ba_win_size, core.ht.tx_ba_win_size and core.ht.tx_ba_tid_bitmap to 0x00, while using the stock Beaglebone Black Wireless kernel

    2) modifying the kernel module with wlvif->ba_support = false, and using the stock Beaglebone Black Wireless wl18xx-conf.bin

    I've attached the original configuration of the Beaglebone Black Wireless for your reference.

    Your advice would be appreciated.

    Fullscreen wl18xx-conf-original.txt Download 
    header.magic = 0x10e100ca
header.version = 0x00070007
header.checksum = 0x00000000
core.sg.params = 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x0000000f, 0x0000001b, 0x00000011, 0x000000aa, 0x00000032, 0x00000064, 0x00000320, 0x000000c8, 0x000000c8, 0x00000000, 0x00000000, 0x00000000, 0x00000001, 0x00000000, 0x0000003c, 0x00001388, 0x000004b0, 0x000003e8, 0x00000001, 0x00000003, 0x00000006, 0x0000000a, 0x0000000a, 0x00000002, 0x00000005, 0x0000001e, 0x00000003, 0x0000000a, 0x00000002, 0x00000000, 0x00000019, 0x00000019, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000
core.sg.state = 0x01
core.rx.rx_msdu_life_time = 0x0007d000
core.rx.packet_detection_threshold = 0x00000000
core.rx.ps_poll_timeout = 0x000f
core.rx.upsd_timeout = 0x000f
core.rx.rts_threshold = 0x0931
core.rx.rx_cca_threshold = 0x0000
core.rx.irq_blk_threshold = 0xffff
core.rx.irq_pkt_threshold = 0x0000
core.rx.irq_timeout = 0x0258
core.rx.queue_type = 0x00
core.tx.tx_energy_detection = 0x00
core.tx.sta_rc_conf.enabled_rates = 0x00000000
core.tx.sta_rc_conf.short_retry_limit = 0x0a
core.tx.sta_rc_conf.long_retry_limit = 0x0a
core.tx.sta_rc_conf.aflags = 0x00
core.tx.ac_conf_count = 0x04
core.tx.ac_conf0.ac = 0x00
core.tx.ac_conf0.cw_min = 0x0f
core.tx.ac_conf0.cw_max = 0x003f
core.tx.ac_conf0.aifsn = 0x03
core.tx.ac_conf0.tx_op_limit = 0x0000
core.tx.ac_conf1.ac = 0x01
core.tx.ac_conf1.cw_min = 0x0f
core.tx.ac_conf1.cw_max = 0x003f
core.tx.ac_conf1.aifsn = 0x07
core.tx.ac_conf1.tx_op_limit = 0x0000
core.tx.ac_conf2.ac = 0x02
core.tx.ac_conf2.cw_min = 0x0f
core.tx.ac_conf2.cw_max = 0x003f
core.tx.ac_conf2.aifsn = 0x01
core.tx.ac_conf2.tx_op_limit = 0x0bc0
core.tx.ac_conf3.ac = 0x03
core.tx.ac_conf3.cw_min = 0x0f
core.tx.ac_conf3.cw_max = 0x003f
core.tx.ac_conf3.aifsn = 0x01
core.tx.ac_conf3.tx_op_limit = 0x05e0
core.tx.max_tx_retries = 0x64
core.tx.ap_aging_period = 0x012c
core.tx.tid_conf_count = 0x04
core.tx.tid_conf0.queue_id = 0x00
core.tx.tid_conf0.channel_type = 0x01
core.tx.tid_conf0.tsid = 0x00
core.tx.tid_conf0.ps_scheme = 0x00
core.tx.tid_conf0.ack_policy = 0x00
core.tx.tid_conf0.apsd_conf = 0x00000000, 0x00000000
core.tx.tid_conf1.queue_id = 0x01
core.tx.tid_conf1.channel_type = 0x01
core.tx.tid_conf1.tsid = 0x01
core.tx.tid_conf1.ps_scheme = 0x00
core.tx.tid_conf1.ack_policy = 0x00
core.tx.tid_conf1.apsd_conf = 0x00000000, 0x00000000
core.tx.tid_conf2.queue_id = 0x02
core.tx.tid_conf2.channel_type = 0x01
core.tx.tid_conf2.tsid = 0x02
core.tx.tid_conf2.ps_scheme = 0x00
core.tx.tid_conf2.ack_policy = 0x00
core.tx.tid_conf2.apsd_conf = 0x00000000, 0x00000000
core.tx.tid_conf3.queue_id = 0x03
core.tx.tid_conf3.channel_type = 0x01
core.tx.tid_conf3.tsid = 0x03
core.tx.tid_conf3.ps_scheme = 0x00
core.tx.tid_conf3.ack_policy = 0x00
core.tx.tid_conf3.apsd_conf = 0x00000000, 0x00000000
core.tx.tid_conf4.queue_id = 0x00
core.tx.tid_conf4.channel_type = 0x00
core.tx.tid_conf4.tsid = 0x00
core.tx.tid_conf4.ps_scheme = 0x00
core.tx.tid_conf4.ack_policy = 0x00
core.tx.tid_conf4.apsd_conf = 0x00000000, 0x00000000
core.tx.tid_conf5.queue_id = 0x00
core.tx.tid_conf5.channel_type = 0x00
core.tx.tid_conf5.tsid = 0x00
core.tx.tid_conf5.ps_scheme = 0x00
core.tx.tid_conf5.ack_policy = 0x00
core.tx.tid_conf5.apsd_conf = 0x00000000, 0x00000000
core.tx.tid_conf6.queue_id = 0x00
core.tx.tid_conf6.channel_type = 0x00
core.tx.tid_conf6.tsid = 0x00
core.tx.tid_conf6.ps_scheme = 0x00
core.tx.tid_conf6.ack_policy = 0x00
core.tx.tid_conf6.apsd_conf = 0x00000000, 0x00000000
core.tx.tid_conf7.queue_id = 0x00
core.tx.tid_conf7.channel_type = 0x00
core.tx.tid_conf7.tsid = 0x00
core.tx.tid_conf7.ps_scheme = 0x00
core.tx.tid_conf7.ack_policy = 0x00
core.tx.tid_conf7.apsd_conf = 0x00000000, 0x00000000
core.tx.frag_threshold = 0x0930
core.tx.tx_compl_timeout = 0x015e
core.tx.tx_compl_threshold = 0x000a
core.tx.basic_rate = 0x00000001
core.tx.basic_rate_5 = 0x00000008
core.tx.tmpl_short_retry_limit = 0x0a
core.tx.tmpl_long_retry_limit = 0x0a
core.tx.tx_watchdog_timeout = 0x00001388
core.tx.slow_link_thold = 0x03
core.tx.fast_link_thold = 0x1e
core.conn.wake_up_event = 0x02
core.conn.listen_interval = 0x01
core.conn.suspend_wake_up_event = 0x04
core.conn.suspend_listen_interval = 0x03
core.conn.bcn_filt_mode = 0x01
core.conn.bcn_filt_ie_count = 0x03
core.conn.bcn_filt_ie0.ie = 0x25
core.conn.bcn_filt_ie0.rule = 0x02
core.conn.bcn_filt_ie0.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie0.type = 0x00
core.conn.bcn_filt_ie0.version = 0x00, 0x00
core.conn.bcn_filt_ie1.ie = 0x3d
core.conn.bcn_filt_ie1.rule = 0x01
core.conn.bcn_filt_ie1.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie1.type = 0x00
core.conn.bcn_filt_ie1.version = 0x00, 0x00
core.conn.bcn_filt_ie2.ie = 0x2a
core.conn.bcn_filt_ie2.rule = 0x01
core.conn.bcn_filt_ie2.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie2.type = 0x00
core.conn.bcn_filt_ie2.version = 0x00, 0x00
core.conn.bcn_filt_ie3.ie = 0x00
core.conn.bcn_filt_ie3.rule = 0x00
core.conn.bcn_filt_ie3.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie3.type = 0x00
core.conn.bcn_filt_ie3.version = 0x00, 0x00
core.conn.bcn_filt_ie4.ie = 0x00
core.conn.bcn_filt_ie4.rule = 0x00
core.conn.bcn_filt_ie4.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie4.type = 0x00
core.conn.bcn_filt_ie4.version = 0x00, 0x00
core.conn.bcn_filt_ie5.ie = 0x00
core.conn.bcn_filt_ie5.rule = 0x00
core.conn.bcn_filt_ie5.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie5.type = 0x00
core.conn.bcn_filt_ie5.version = 0x00, 0x00
core.conn.bcn_filt_ie6.ie = 0x00
core.conn.bcn_filt_ie6.rule = 0x00
core.conn.bcn_filt_ie6.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie6.type = 0x00
core.conn.bcn_filt_ie6.version = 0x00, 0x00
core.conn.bcn_filt_ie7.ie = 0x00
core.conn.bcn_filt_ie7.rule = 0x00
core.conn.bcn_filt_ie7.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie7.type = 0x00
core.conn.bcn_filt_ie7.version = 0x00, 0x00
core.conn.bcn_filt_ie8.ie = 0x00
core.conn.bcn_filt_ie8.rule = 0x00
core.conn.bcn_filt_ie8.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie8.type = 0x00
core.conn.bcn_filt_ie8.version = 0x00, 0x00
core.conn.bcn_filt_ie9.ie = 0x00
core.conn.bcn_filt_ie9.rule = 0x00
core.conn.bcn_filt_ie9.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie9.type = 0x00
core.conn.bcn_filt_ie9.version = 0x00, 0x00
core.conn.bcn_filt_ie10.ie = 0x00
core.conn.bcn_filt_ie10.rule = 0x00
core.conn.bcn_filt_ie10.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie10.type = 0x00
core.conn.bcn_filt_ie10.version = 0x00, 0x00
core.conn.bcn_filt_ie11.ie = 0x00
core.conn.bcn_filt_ie11.rule = 0x00
core.conn.bcn_filt_ie11.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie11.type = 0x00
core.conn.bcn_filt_ie11.version = 0x00, 0x00
core.conn.bcn_filt_ie12.ie = 0x00
core.conn.bcn_filt_ie12.rule = 0x00
core.conn.bcn_filt_ie12.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie12.type = 0x00
core.conn.bcn_filt_ie12.version = 0x00, 0x00
core.conn.bcn_filt_ie13.ie = 0x00
core.conn.bcn_filt_ie13.rule = 0x00
core.conn.bcn_filt_ie13.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie13.type = 0x00
core.conn.bcn_filt_ie13.version = 0x00, 0x00
core.conn.bcn_filt_ie14.ie = 0x00
core.conn.bcn_filt_ie14.rule = 0x00
core.conn.bcn_filt_ie14.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie14.type = 0x00
core.conn.bcn_filt_ie14.version = 0x00, 0x00
core.conn.bcn_filt_ie15.ie = 0x00
core.conn.bcn_filt_ie15.rule = 0x00
core.conn.bcn_filt_ie15.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie15.type = 0x00
core.conn.bcn_filt_ie15.version = 0x00, 0x00
core.conn.bcn_filt_ie16.ie = 0x00
core.conn.bcn_filt_ie16.rule = 0x00
core.conn.bcn_filt_ie16.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie16.type = 0x00
core.conn.bcn_filt_ie16.version = 0x00, 0x00
core.conn.bcn_filt_ie17.ie = 0x00
core.conn.bcn_filt_ie17.rule = 0x00
core.conn.bcn_filt_ie17.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie17.type = 0x00
core.conn.bcn_filt_ie17.version = 0x00, 0x00
core.conn.bcn_filt_ie18.ie = 0x00
core.conn.bcn_filt_ie18.rule = 0x00
core.conn.bcn_filt_ie18.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie18.type = 0x00
core.conn.bcn_filt_ie18.version = 0x00, 0x00
core.conn.bcn_filt_ie19.ie = 0x00
core.conn.bcn_filt_ie19.rule = 0x00
core.conn.bcn_filt_ie19.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie19.type = 0x00
core.conn.bcn_filt_ie19.version = 0x00, 0x00
core.conn.bcn_filt_ie20.ie = 0x00
core.conn.bcn_filt_ie20.rule = 0x00
core.conn.bcn_filt_ie20.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie20.type = 0x00
core.conn.bcn_filt_ie20.version = 0x00, 0x00
core.conn.bcn_filt_ie21.ie = 0x00
core.conn.bcn_filt_ie21.rule = 0x00
core.conn.bcn_filt_ie21.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie21.type = 0x00
core.conn.bcn_filt_ie21.version = 0x00, 0x00
core.conn.bcn_filt_ie22.ie = 0x00
core.conn.bcn_filt_ie22.rule = 0x00
core.conn.bcn_filt_ie22.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie22.type = 0x00
core.conn.bcn_filt_ie22.version = 0x00, 0x00
core.conn.bcn_filt_ie23.ie = 0x00
core.conn.bcn_filt_ie23.rule = 0x00
core.conn.bcn_filt_ie23.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie23.type = 0x00
core.conn.bcn_filt_ie23.version = 0x00, 0x00
core.conn.bcn_filt_ie24.ie = 0x00
core.conn.bcn_filt_ie24.rule = 0x00
core.conn.bcn_filt_ie24.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie24.type = 0x00
core.conn.bcn_filt_ie24.version = 0x00, 0x00
core.conn.bcn_filt_ie25.ie = 0x00
core.conn.bcn_filt_ie25.rule = 0x00
core.conn.bcn_filt_ie25.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie25.type = 0x00
core.conn.bcn_filt_ie25.version = 0x00, 0x00
core.conn.bcn_filt_ie26.ie = 0x00
core.conn.bcn_filt_ie26.rule = 0x00
core.conn.bcn_filt_ie26.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie26.type = 0x00
core.conn.bcn_filt_ie26.version = 0x00, 0x00
core.conn.bcn_filt_ie27.ie = 0x00
core.conn.bcn_filt_ie27.rule = 0x00
core.conn.bcn_filt_ie27.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie27.type = 0x00
core.conn.bcn_filt_ie27.version = 0x00, 0x00
core.conn.bcn_filt_ie28.ie = 0x00
core.conn.bcn_filt_ie28.rule = 0x00
core.conn.bcn_filt_ie28.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie28.type = 0x00
core.conn.bcn_filt_ie28.version = 0x00, 0x00
core.conn.bcn_filt_ie29.ie = 0x00
core.conn.bcn_filt_ie29.rule = 0x00
core.conn.bcn_filt_ie29.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie29.type = 0x00
core.conn.bcn_filt_ie29.version = 0x00, 0x00
core.conn.bcn_filt_ie30.ie = 0x00
core.conn.bcn_filt_ie30.rule = 0x00
core.conn.bcn_filt_ie30.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie30.type = 0x00
core.conn.bcn_filt_ie30.version = 0x00, 0x00
core.conn.bcn_filt_ie31.ie = 0x00
core.conn.bcn_filt_ie31.rule = 0x00
core.conn.bcn_filt_ie31.oui = 0x00, 0x00, 0x00
core.conn.bcn_filt_ie31.type = 0x00
core.conn.bcn_filt_ie31.version = 0x00, 0x00
core.conn.synch_fail_thold = 0x0000000c
core.conn.bss_lose_timeout = 0x00000190
core.conn.beacon_rx_timeout = 0x00002710
core.conn.broadcast_timeout = 0x00004e20
core.conn.rx_broadcast_in_ps = 0x01
core.conn.ps_poll_threshold = 0x0a
core.conn.sig_weights.rssi_bcn_avg_weight = 0x00
core.conn.sig_weights.rssi_pkt_avg_weight = 0x00
core.conn.sig_weights.snr_bcn_avg_weight = 0x00
core.conn.sig_weights.snr_pkt_avg_weight = 0x00
core.conn.bet_enable = 0x01
core.conn.bet_max_consecutive = 0x32
core.conn.psm_entry_retries = 0x08
core.conn.psm_exit_retries = 0x10
core.conn.psm_entry_nullfunc_retries = 0x03
core.conn.dynamic_ps_timeout = 0x0096
core.conn.forced_ps = 0x00
core.conn.keep_alive_interval = 0x0000d6d8
core.conn.max_listen_interval = 0x14
core.conn.sta_sleep_auth = 0xff
core.conn.suspend_rx_ba_activity = 0x00
core.itrim.enable = 0x00
core.itrim.timeout = 0x0000c350
core.pm_config.host_clk_settling_time = 0x00001388
core.pm_config.host_fast_wakeup_support = 0x01
core.roam_trigger.trigger_pacing = 0x0001
core.roam_trigger.avg_weight_rssi_beacon = 0x14
core.roam_trigger.avg_weight_rssi_data = 0x0a
core.roam_trigger.avg_weight_snr_beacon = 0x14
core.roam_trigger.avg_weight_snr_data = 0x0a
core.scan.min_dwell_time_active = 0x00001d4c
core.scan.max_dwell_time_active = 0x00007530
core.scan.min_dwell_time_active_long = 0x000061a8
core.scan.max_dwell_time_active_long = 0x0000c350
core.scan.dwell_time_passive = 0x000186a0
core.scan.dwell_time_dfs = 0x000249f0
core.scan.num_probe_reqs = 0x0002
core.scan.split_scan_timeout = 0x0000c350
core.sched_scan.base_dwell_time = 0x00001d4c
core.sched_scan.max_dwell_time_delta = 0x000057e4
core.sched_scan.dwell_time_delta_per_probe = 0x000007d0
core.sched_scan.dwell_time_delta_per_probe_5 = 0x0000015e
core.sched_scan.dwell_time_passive = 0x000186a0
core.sched_scan.dwell_time_dfs = 0x000249f0
core.sched_scan.num_probe_reqs = 0x02
core.sched_scan.rssi_threshold = 0xa6
core.sched_scan.snr_threshold = 0x00
core.sched_scan.num_short_intervals = 0x0d
core.sched_scan.long_interval = 0x7530
core.ht.rx_ba_win_size = 0x20
core.ht.tx_ba_win_size = 0x40
core.ht.inactivity_timeout = 0x2710
core.ht.tx_ba_tid_bitmap = 0x3f
core.mem.num_stations = 0x01
core.mem.ssid_profiles = 0x01
core.mem.rx_block_num = 0x28
core.mem.tx_min_block_num = 0x28
core.mem.dynamic_memory = 0x01
core.mem.min_req_tx_blocks = 0x2d
core.mem.min_req_rx_blocks = 0x16
core.mem.tx_min = 0x1b
core.fm_coex.enable = 0x01
core.fm_coex.swallow_period = 0x05
core.fm_coex.n_divider_fref_set_1 = 0xff
core.fm_coex.n_divider_fref_set_2 = 0x0c
core.fm_coex.m_divider_fref_set_1 = 0xffff
core.fm_coex.m_divider_fref_set_2 = 0x0094
core.fm_coex.coex_pll_stabilization_time = 0xffffffff
core.fm_coex.ldo_stabilization_time = 0xffff
core.fm_coex.fm_disturbed_band_margin = 0xff
core.fm_coex.swallow_clk_diff = 0xff
core.rx_streaming.duration = 0x00000096
core.rx_streaming.queues = 0x01
core.rx_streaming.interval = 0x14
core.rx_streaming.always = 0x00
core.fwlog.mode = 0x00
core.fwlog.mem_blocks = 0x02
core.fwlog.severity = 0x00
core.fwlog.timestamp = 0x00
core.fwlog.output = 0x01
core.fwlog.threshold = 0x00
core.rate.rate_retry_score = 0x7d00
core.rate.per_add = 0x2000
core.rate.per_th1 = 0x0800
core.rate.per_th2 = 0x1000
core.rate.max_per = 0x1fa4
core.rate.inverse_curiosity_factor = 0x05
core.rate.tx_fail_low_th = 0x04
core.rate.tx_fail_high_th = 0x0a
core.rate.per_alpha_shift = 0x04
core.rate.per_add_shift = 0x0d
core.rate.per_beta1_shift = 0x0a
core.rate.per_beta2_shift = 0x08
core.rate.rate_check_up = 0x02
core.rate.rate_check_down = 0x0c
core.rate.rate_retry_policy = 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
core.hangover.recover_time = 0x00000000
core.hangover.hangover_period = 0x14
core.hangover.dynamic_mode = 0x01
core.hangover.early_termination_mode = 0x01
core.hangover.max_period = 0x14
core.hangover.min_period = 0x01
core.hangover.increase_delta = 0x01
core.hangover.decrease_delta = 0x02
core.hangover.quiet_time = 0x04
core.hangover.increase_time = 0x01
core.hangover.window_size = 0x10
core.recovery.bug_on_recovery = 0x00
core.recovery.no_recovery = 0x00
wl18xx.ht.mode = 0x01
wl18xx.phy.phy_standalone = 0x00
wl18xx.phy.spare0 = 0x08
wl18xx.phy.enable_clpc = 0x00
wl18xx.phy.enable_tx_low_pwr_on_siso_rdl = 0x00
wl18xx.phy.auto_detect = 0x00
wl18xx.phy.dedicated_fem = 0x00
wl18xx.phy.low_band_component = 0x02
wl18xx.phy.low_band_component_type = 0x05
wl18xx.phy.high_band_component = 0x01
wl18xx.phy.high_band_component_type = 0x09
wl18xx.phy.number_of_assembled_ant2_4 = 0x02
wl18xx.phy.number_of_assembled_ant5 = 0x00
wl18xx.phy.pin_muxing_platform_options = 0x00, 0x00
wl18xx.phy.external_pa_dc2dc = 0x00
wl18xx.phy.tcxo_ldo_voltage = 0x00
wl18xx.phy.xtal_itrim_val = 0x04
wl18xx.phy.srf_state = 0x00
wl18xx.phy.srf1 = 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
wl18xx.phy.srf2 = 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
wl18xx.phy.srf3 = 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
wl18xx.phy.io_configuration = 0x01
wl18xx.phy.sdio_configuration = 0x00
wl18xx.phy.settings = 0x00
wl18xx.phy.rx_profile = 0x00
wl18xx.phy.per_chan_pwr_limit_arr_11abg = 0x78, 0x88, 0x88, 0x78, 0x88, 0x88, 0x78, 0x88, 0x88, 0x78, 0x88, 0x88, 0x78, 0x88, 0x18, 0x78, 0x88, 0x88, 0x78, 0x88, 0x82, 0x78, 0x88, 0x88, 0x78, 0x88, 0x88, 0x78, 0x88, 0x88, 0x78, 0x88, 0x88, 0x78, 0x88, 0x88, 0x78, 0x88, 0x88, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
wl18xx.phy.pwr_limit_reference_11_abg = 0x55
wl18xx.phy.per_chan_pwr_limit_arr_11p = 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
wl18xx.phy.pwr_limit_reference_11p = 0x64
wl18xx.phy.spare1 = 0x00
wl18xx.phy.per_chan_bo_mode_11_abg = 0x40, 0x00, 0x04, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x19
wl18xx.phy.per_chan_bo_mode_11_p = 0x00, 0x00, 0x00, 0x00
wl18xx.phy.primary_clock_setting_time = 0x05
wl18xx.phy.clock_valid_on_wake_up = 0x00
wl18xx.phy.secondary_clock_setting_time = 0x05
wl18xx.phy.board_type = 0x02
wl18xx.phy.psat = 0x00
wl18xx.phy.low_power_val = 0xff
wl18xx.phy.med_power_val = 0xff
wl18xx.phy.high_power_val = 0xff
wl18xx.phy.per_sub_band_tx_trace_loss = 0x10, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
wl18xx.phy.per_sub_band_rx_trace_loss = 0x10, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
wl18xx.phy.tx_rf_margin = 0x01
wl18xx.phy.low_power_val_2nd = 0xff
wl18xx.phy.med_power_val_2nd = 0xff
wl18xx.phy.high_power_val_2nd = 0xff
wl18xx.phy.padding = 0x00
wl18xx.ap_sleep.idle_duty_cycle = 0x00
wl18xx.ap_sleep.connected_duty_cycle = 0x00
wl18xx.ap_sleep.max_stations_thresh = 0x04
wl18xx.ap_sleep.idle_conn_thresh = 0x08

  • 0 in reply to Flavio Ribeiro
    TI__Mastermind 20285 points
    Hi Flavio,

    Instead of trying to completely disable BA, and having its side effects, i suggest just rying to change the ba window sizes using wlconf from:
    core.ht.rx_ba_win_size = 0x20
    core.ht.tx_ba_win_size = 0x40

    to (for example):
    core.ht.rx_ba_win_size = 0x40
    core.ht.tx_ba_win_size = 0x80

    This may help you as well with the ping size related response time while still keeping the mechanism enabled.

    Best Regards,
    Eyal