• Edmond Gagnon's avatar
    wcn36xx: Implement tx_rate reporting · 1216c4d3
    Edmond Gagnon authored
    Currently, the driver reports a tx_rate of 6.0 MBit/s no matter the true
    rate:
    
    root@linaro-developer:~# iw wlan0 link
    Connected to 6c:f3:7f:eb:9b:92 (on wlan0)
            SSID: SQ-DEVICETEST
            freq: 5200
            RX: 4141 bytes (32 packets)
            TX: 2082 bytes (15 packets)
            signal: -77 dBm
            rx bitrate: 135.0 MBit/s MCS 6 40MHz short GI
            tx bitrate: 6.0 MBit/s
    
            bss flags:      short-slot-time
            dtim period:    1
            beacon int:     100
    
    This patch requests HAL_GLOBAL_CLASS_A_STATS_INFO via a hal_get_stats
    firmware message and reports it via ieee80211_ops::sta_statistics.
    
    root@linaro-developer:~# iw wlan0 link
    Connected to 6c:f3:7f:eb:73:b2 (on wlan0)
            SSID: SQ-DEVICETEST
            freq: 5700
            RX: 26788094 bytes (19859 packets)
            TX: 1101376 bytes (12119 packets)
            signal: -75 dBm
            rx bitrate: 135.0 MBit/s MCS 6 40MHz short GI
            tx bitrate: 108.0 MBit/s VHT-MCS 5 40MHz VHT-NSS 1
    
            bss flags:      short-slot-time
            dtim period:    1
            beacon int:     100
    
    Tested on MSM8939 with WCN3680B running firmware CNSS-PR-2-0-1-2-c1-00083,
    and verified by sniffing frames over the air with Wireshark to ensure the
    MCS indices match.
    Signed-off-by: default avatarEdmond Gagnon <egagnon@squareup.com>
    Reviewed-by: default avatarBenjamin Li <benl@squareup.com>
    Signed-off-by: default avatarKalle Valo <quic_kvalo@quicinc.com>
    Link: https://lore.kernel.org/r/20220325224212.159690-1-egagnon@squareup.com
    1216c4d3
smd.h 6.48 KB