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3a597f0d42
In the phase of wlan load, it has hw scan and 11d scan which sent to firmware by ath11k, then hw scan and 11d scan will use about 14 seconds, and meanwhile ath11k_reg_update_chan_list() is running in workqueue of ath11k_base, and wait for 11d scan/hw scan finished. When the hw scan finished, mac80211 will start to connect and send management packet, at this moment, ath11k_reg_update_chan_list() is still waiting for 11d scan finished, so wmi_mgmt_tx_work of ath11k will not run and thus the tx management packet also not send out and lead authentication timed out. log: INFO kernel: [ 187.885322] wlan0: authenticate with 72:6c:57:43:9f:90 INFO kernel: [ 187.937266] wlan0: send auth to 72:6c:57:43:9f:90 (try 1/3) INFO kernel: [ 188.626944] wlan0: send auth to 72:6c:57:43:9f:90 (try 2/3) INFO kernel: [ 189.650999] wlan0: send auth to 72:6c:57:43:9f:90 (try 3/3) INFO kernel: [ 190.651917] wlan0: authentication with 72:6c:57:43:9f:90 timed out Change wmi_mgmt_tx_work to another queue workqueue_aux of ath11k_base, then connection success. Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3 Signed-off-by: Wen Gong <quic_wgong@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220428023320.4007-1-quic_wgong@quicinc.com |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.