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ath10k: add per peer tx stats support for 10.2.4

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10.2.4 firmware branch (used in QCA988X) does not support
HTT_10_4_T2H_MSG_TYPE_PEER_STATS and that's why ath10k does not provide
tranmission rate statistics to user space, instead it just shows
hardcoded 6 Mbit/s. But pktlog firmware facility provides per peer tx
statistics. The firmware sends one pktlog event for every four
PPDUs per peer, which include:

* successful number of packets and bytes transmitted
* number of packets and bytes dropped
* retried number of packets and bytes
* rate info per ppdu

Firmware supports WMI_SERVICE_PEER_STATS, pktlog is enabled through
ATH10K_FLAG_PEER_STATS, which is nowadays enabled by default in ath10k.

This patch does not impact throughput.

Tested on QCA9880 with firmware version 10.2.4.70.48. This should also
work with firmware branch 10.2.4-1.0-00029

Parse peer stats from pktlog packets and update the tx rate information
per STA. This way user space can query about transmit rate with iw:

$iw wlan0 station dump
Station 3c:a9:f4:72:bb:a4 (on wlan1)
        inactive time:  8210 ms
        rx bytes:       9166
        rx packets:     44
        tx bytes:       1105
        tx packets:     9
        tx retries:     0
        tx failed:      1
        rx drop misc:   3
        signal:         -75 [-75, -87, -88] dBm
        signal avg:     -75 [-75, -85, -88] dBm
        tx bitrate:     39.0 MBit/s MCS 10
        rx bitrate:     26.0 MBit/s MCS 3
        rx duration:    23250 us
        authorized:     yes
        authenticated:  yes
        associated:     yes
        preamble:       short
        WMM/WME:        yes
        MFP:            no
        TDLS peer:      no
        DTIM period:    2
        beacon interval:100
        short preamble: yes
        short slot time:yes
        connected time: 22 seconds

Signed-off-by: Anilkumar Kolli <akolli@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Anilkumar Kolli
2017-12-05 19:01:25 +05:30
committed by Kalle Valo
parent 7f9befbb55
commit e8123bb74c
4 changed files with 104 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/net/wireless/ath/ath10k/debug.h
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@@ -51,7 +51,8 @@ enum ath10k_pktlog_filter {
ATH10K_PKTLOG_RCFIND = 0x000000004,
ATH10K_PKTLOG_RCUPDATE = 0x000000008,
ATH10K_PKTLOG_DBG_PRINT = 0x000000010,
ATH10K_PKTLOG_ANY = 0x00000001f,
ATH10K_PKTLOG_PEER_STATS = 0x000000040,
ATH10K_PKTLOG_ANY = 0x00000005f,
};
enum ath10k_dbg_aggr_mode {
@@ -60,6 +61,21 @@ enum ath10k_dbg_aggr_mode {
ATH10K_DBG_AGGR_MODE_MAX,
};
/* Types of packet log events */
enum ath_pktlog_type {
ATH_PKTLOG_TYPE_TX_CTRL = 1,
ATH_PKTLOG_TYPE_TX_STAT,
};
struct ath10k_pktlog_hdr {
__le16 flags;
__le16 missed_cnt;
__le16 log_type; /* Type of log information foll this header */
__le16 size; /* Size of variable length log information in bytes */
__le32 timestamp;
u8 payload[0];
} __packed;
/* FIXME: How to calculate the buffer size sanely? */
#define ATH10K_FW_STATS_BUF_SIZE (1024 * 1024)