diff options
| author | Sriram R <srirrama@codeaurora.org> | 2020-06-11 08:09:54 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-06-15 17:33:12 +0300 |
| commit | 71fbc847978f51629856d0ef7d3645d9322fb340 (patch) | |
| tree | 00d69aab5f63db211c21c63a5d941630d4f011e8 /drivers/net/wireless/ath/ath11k/dp_rx.c | |
| parent | 0dd6392ac2c0eb3e229631744f54b61789139e33 (diff) | |
ath11k: Add support for ring backpressure stats
Add support for collecting and dumping the ring backpressure
stats via debugfs. Stats are dumped only if events are
received for the specific ring.
Below command can be used to obtain these stats as part of soc dp stats.
cat /sys/kernel/debug/ath11k/ipq8074/soc_dp_stats
Sample Output - When No stats available:
Backpressure Stats
==================
No Ring Backpressure stats received
Sample Output - When ring bp stats available for specific ring
Backpressure Stats
==================
Ring: REO2SW1_RING
count: 1
hp: 2
tp: 2
seen before: 4ms
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01213-QCAHKSWPL_SILICONZ-1
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591768308-32005-3-git-send-email-srirrama@codeaurora.org
Diffstat (limited to 'drivers/net/wireless/ath/ath11k/dp_rx.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/dp_rx.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c index a9cc1a457c33..791d971784ce 100644 --- a/drivers/net/wireless/ath/ath11k/dp_rx.c +++ b/drivers/net/wireless/ath/ath11k/dp_rx.c @@ -1501,9 +1501,10 @@ static void ath11k_htt_backpressure_event_handler(struct ath11k_base *ab, struct sk_buff *skb) { u32 *data = (u32 *)skb->data; - u8 pdev_id, ring_type, ring_id; + u8 pdev_id, ring_type, ring_id, pdev_idx; u16 hp, tp; u32 backpressure_time; + struct ath11k_bp_stats *bp_stats; pdev_id = FIELD_GET(HTT_BACKPRESSURE_EVENT_PDEV_ID_M, *data); ring_type = FIELD_GET(HTT_BACKPRESSURE_EVENT_RING_TYPE_M, *data); @@ -1518,6 +1519,31 @@ static void ath11k_htt_backpressure_event_handler(struct ath11k_base *ab, ath11k_dbg(ab, ATH11K_DBG_DP_HTT, "htt backpressure event, pdev %d, ring type %d,ring id %d, hp %d tp %d, backpressure time %d\n", pdev_id, ring_type, ring_id, hp, tp, backpressure_time); + + if (ring_type == HTT_BACKPRESSURE_UMAC_RING_TYPE) { + if (ring_id >= HTT_SW_UMAC_RING_IDX_MAX) + return; + + bp_stats = &ab->soc_stats.bp_stats.umac_ring_bp_stats[ring_id]; + } else if (ring_type == HTT_BACKPRESSURE_LMAC_RING_TYPE) { + pdev_idx = DP_HW2SW_MACID(pdev_id); + + if (ring_id >= HTT_SW_LMAC_RING_IDX_MAX || pdev_idx >= MAX_RADIOS) + return; + + bp_stats = &ab->soc_stats.bp_stats.lmac_ring_bp_stats[ring_id][pdev_idx]; + } else { + ath11k_warn(ab, "unknown ring type received in htt bp event %d\n", + ring_type); + return; + } + + spin_lock_bh(&ab->base_lock); + bp_stats->hp = hp; + bp_stats->tp = tp; + bp_stats->count++; + bp_stats->jiffies = jiffies; + spin_unlock_bh(&ab->base_lock); } void ath11k_dp_htt_htc_t2h_msg_handler(struct ath11k_base *ab, |