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6af5bc381b
Currently, command “iw wlan0 station dump” does not show per-chain signal
strength.
This is because ath12k does not handle the num_per_chain_rssi and
rssi_avg_beacon reported by firmware to ath12k.
To address this, update ath12k to send WMI_REQUEST_STATS_CMDID with the
flag WMI_REQUEST_RSSI_PER_CHAIN_STAT to the firmware. Then, add logic to
handle num_per_chain_rssi and rssi_avg_beacon in the
ath12k_wmi_tlv_fw_stats_parse(), and assign the resulting per-chain signal
strength to the chain_signal of struct station_info.
After that, "iw dev xxx station dump" shows the correct per-chain signal
strength.
Such as:
Station AA:BB:CC:DD:EE:FF (on wlan0)
inactive time: 212 ms
rx bytes: 10398
rx packets: 64
tx bytes: 4362
tx packets: 33
tx retries: 49
tx failed: 0
beacon loss: 0
beacon rx: 14
rx drop misc: 16
signal: -45 [-51, -46] dBm
beacon signal avg: -44 dBm
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219751
Signed-off-by: Lingbo Kong <lingbo.kong@oss.qualcomm.com>
Reviewed-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250812030044.688-1-quic_lingbok@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.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 reStructuredText 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.