From 840c36fa727aea13a2401a5d1d33b722b79df5af Mon Sep 17 00:00:00 2001 From: Carl Huang Date: Fri, 11 Dec 2020 19:35:46 +0200 Subject: ath11k: dp: stop rx pktlog before suspend Stop dp rx pktlog when entering suspend and reap the mon_status buffer to keep it empty. During resume restart the reap timer. Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1 Signed-off-by: Carl Huang Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/1607708150-21066-7-git-send-email-kvalo@codeaurora.org --- drivers/net/wireless/ath/ath11k/dp_rx.c | 48 +++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) (limited to 'drivers/net/wireless/ath/ath11k/dp_rx.c') diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c index 5de619d5c4e2..205c0f1a40e9 100644 --- a/drivers/net/wireless/ath/ath11k/dp_rx.c +++ b/drivers/net/wireless/ath/ath11k/dp_rx.c @@ -274,6 +274,28 @@ static void ath11k_dp_service_mon_ring(struct timer_list *t) msecs_to_jiffies(ATH11K_MON_TIMER_INTERVAL)); } +static int ath11k_dp_purge_mon_ring(struct ath11k_base *ab) +{ + int i, reaped = 0; + unsigned long timeout = jiffies + msecs_to_jiffies(DP_MON_PURGE_TIMEOUT_MS); + + do { + for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) + reaped += ath11k_dp_rx_process_mon_rings(ab, i, + NULL, + DP_MON_SERVICE_BUDGET); + + /* nothing more to reap */ + if (reaped < DP_MON_SERVICE_BUDGET) + return 0; + + } while (time_before(jiffies, timeout)); + + ath11k_warn(ab, "dp mon ring purge timeout"); + + return -ETIMEDOUT; +} + /* Returns number of Rx buffers replenished */ int ath11k_dp_rxbufs_replenish(struct ath11k_base *ab, int mac_id, struct dp_rxdma_ring *rx_ring, @@ -5026,3 +5048,29 @@ int ath11k_dp_rx_pdev_mon_detach(struct ath11k *ar) ath11k_dp_mon_link_free(ar); return 0; } + +int ath11k_dp_rx_pktlog_start(struct ath11k_base *ab) +{ + /* start reap timer */ + mod_timer(&ab->mon_reap_timer, + jiffies + msecs_to_jiffies(ATH11K_MON_TIMER_INTERVAL)); + + return 0; +} + +int ath11k_dp_rx_pktlog_stop(struct ath11k_base *ab, bool stop_timer) +{ + int ret; + + if (stop_timer) + del_timer_sync(&ab->mon_reap_timer); + + /* reap all the monitor related rings */ + ret = ath11k_dp_purge_mon_ring(ab); + if (ret) { + ath11k_warn(ab, "failed to purge dp mon ring: %d\n", ret); + return ret; + } + + return 0; +} -- cgit v1.2.3