From: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> To: <ath10k@lists.infradead.org> Cc: <linux-wireless@vger.kernel.org>, <rmanohar@codeaurora.org>, "Rajkumar Manoharan" <rmanohar@qti.qualcomm.com> Subject: [PATCH 9/9] ath10k: combine txrx and replenish task Date: Tue, 22 Mar 2016 17:22:19 +0530 [thread overview] Message-ID: <1458647539-17213-10-git-send-email-rmanohar@qti.qualcomm.com> (raw) In-Reply-To: <1458647539-17213-1-git-send-email-rmanohar@qti.qualcomm.com> Since tx completion and rx indication processing are moved out of txrx tasklet and rx ring lock contention also removed from txrx for rx_ind messages, it would be efficient to combine both replenish and txrx tasks. Refill threshold is adjusted for both AP135 and AP148 (low and high end systems). With this adjustment in AP135, TCP DL is improved from 603 Mbps to 620 Mbps and UDP DL is improved from 758 Mbps to 803 Mbps. Also no watchdog are observed on UDP BiDi. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> --- drivers/net/wireless/ath/ath10k/htt.h | 3 +-- drivers/net/wireless/ath/ath10k/htt_rx.c | 21 ++++++--------------- 2 files changed, 7 insertions(+), 17 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h index 1adcae4..60bd9fe 100644 --- a/drivers/net/wireless/ath/ath10k/htt.h +++ b/drivers/net/wireless/ath/ath10k/htt.h @@ -1662,7 +1662,6 @@ struct ath10k_htt { /* set if host-fw communication goes haywire * used to avoid further failures */ bool rx_confused; - struct tasklet_struct rx_replenish_task; atomic_t num_mpdus_ready; /* This is used to group tx/rx completions separately and process them @@ -1737,7 +1736,7 @@ struct htt_rx_desc { /* Refill a bunch of RX buffers for each refill round so that FW/HW can handle * aggregated traffic more nicely. */ -#define ATH10K_HTT_MAX_NUM_REFILL 16 +#define ATH10K_HTT_MAX_NUM_REFILL 100 /* * DMA_MAP expects the buffer to be an integral number of cache lines. diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c index 31be0c6..96a7417 100644 --- a/drivers/net/wireless/ath/ath10k/htt_rx.c +++ b/drivers/net/wireless/ath/ath10k/htt_rx.c @@ -31,6 +31,8 @@ /* when under memory pressure rx ring refill may fail and needs a retry */ #define HTT_RX_RING_REFILL_RETRY_MS 50 +#define HTT_RX_RING_REFILL_RESCHED_MS 5 + static int ath10k_htt_rx_get_csum_state(struct sk_buff *skb); static void ath10k_htt_txrx_compl_task(unsigned long ptr); @@ -192,7 +194,8 @@ static void ath10k_htt_rx_msdu_buff_replenish(struct ath10k_htt *htt) mod_timer(&htt->rx_ring.refill_retry_timer, jiffies + msecs_to_jiffies(HTT_RX_RING_REFILL_RETRY_MS)); } else if (num_deficit > 0) { - tasklet_schedule(&htt->rx_replenish_task); + mod_timer(&htt->rx_ring.refill_retry_timer, jiffies + + msecs_to_jiffies(HTT_RX_RING_REFILL_RESCHED_MS)); } spin_unlock_bh(&htt->rx_ring.lock); } @@ -223,7 +226,6 @@ int ath10k_htt_rx_ring_refill(struct ath10k *ar) void ath10k_htt_rx_free(struct ath10k_htt *htt) { del_timer_sync(&htt->rx_ring.refill_retry_timer); - tasklet_kill(&htt->rx_replenish_task); tasklet_kill(&htt->txrx_compl_task); skb_queue_purge(&htt->rx_compl_q); @@ -380,13 +382,6 @@ static int ath10k_htt_rx_amsdu_pop(struct ath10k_htt *htt, return msdu_chaining; } -static void ath10k_htt_rx_replenish_task(unsigned long ptr) -{ - struct ath10k_htt *htt = (struct ath10k_htt *)ptr; - - ath10k_htt_rx_msdu_buff_replenish(htt); -} - static struct sk_buff *ath10k_htt_rx_pop_paddr(struct ath10k_htt *htt, u32 paddr) { @@ -520,9 +515,6 @@ int ath10k_htt_rx_alloc(struct ath10k_htt *htt) htt->rx_ring.sw_rd_idx.msdu_payld = 0; hash_init(htt->rx_ring.skb_table); - tasklet_init(&htt->rx_replenish_task, ath10k_htt_rx_replenish_task, - (unsigned long)htt); - skb_queue_head_init(&htt->rx_compl_q); skb_queue_head_init(&htt->rx_in_ord_compl_q); skb_queue_head_init(&htt->tx_fetch_ind_q); @@ -1912,8 +1904,7 @@ static void ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb) return; } } - - tasklet_schedule(&htt->rx_replenish_task); + ath10k_htt_rx_msdu_buff_replenish(htt); } static void ath10k_htt_rx_tx_fetch_resp_id_confirm(struct ath10k *ar, @@ -2471,5 +2462,5 @@ static void ath10k_htt_txrx_compl_task(unsigned long ptr) dev_kfree_skb_any(skb); } - tasklet_schedule(&htt->rx_replenish_task); + ath10k_htt_rx_msdu_buff_replenish(htt); } -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> To: ath10k@lists.infradead.org Cc: linux-wireless@vger.kernel.org, Rajkumar Manoharan <rmanohar@qti.qualcomm.com>, rmanohar@codeaurora.org Subject: [PATCH 9/9] ath10k: combine txrx and replenish task Date: Tue, 22 Mar 2016 17:22:19 +0530 [thread overview] Message-ID: <1458647539-17213-10-git-send-email-rmanohar@qti.qualcomm.com> (raw) In-Reply-To: <1458647539-17213-1-git-send-email-rmanohar@qti.qualcomm.com> Since tx completion and rx indication processing are moved out of txrx tasklet and rx ring lock contention also removed from txrx for rx_ind messages, it would be efficient to combine both replenish and txrx tasks. Refill threshold is adjusted for both AP135 and AP148 (low and high end systems). With this adjustment in AP135, TCP DL is improved from 603 Mbps to 620 Mbps and UDP DL is improved from 758 Mbps to 803 Mbps. Also no watchdog are observed on UDP BiDi. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> --- drivers/net/wireless/ath/ath10k/htt.h | 3 +-- drivers/net/wireless/ath/ath10k/htt_rx.c | 21 ++++++--------------- 2 files changed, 7 insertions(+), 17 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h index 1adcae4..60bd9fe 100644 --- a/drivers/net/wireless/ath/ath10k/htt.h +++ b/drivers/net/wireless/ath/ath10k/htt.h @@ -1662,7 +1662,6 @@ struct ath10k_htt { /* set if host-fw communication goes haywire * used to avoid further failures */ bool rx_confused; - struct tasklet_struct rx_replenish_task; atomic_t num_mpdus_ready; /* This is used to group tx/rx completions separately and process them @@ -1737,7 +1736,7 @@ struct htt_rx_desc { /* Refill a bunch of RX buffers for each refill round so that FW/HW can handle * aggregated traffic more nicely. */ -#define ATH10K_HTT_MAX_NUM_REFILL 16 +#define ATH10K_HTT_MAX_NUM_REFILL 100 /* * DMA_MAP expects the buffer to be an integral number of cache lines. diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c index 31be0c6..96a7417 100644 --- a/drivers/net/wireless/ath/ath10k/htt_rx.c +++ b/drivers/net/wireless/ath/ath10k/htt_rx.c @@ -31,6 +31,8 @@ /* when under memory pressure rx ring refill may fail and needs a retry */ #define HTT_RX_RING_REFILL_RETRY_MS 50 +#define HTT_RX_RING_REFILL_RESCHED_MS 5 + static int ath10k_htt_rx_get_csum_state(struct sk_buff *skb); static void ath10k_htt_txrx_compl_task(unsigned long ptr); @@ -192,7 +194,8 @@ static void ath10k_htt_rx_msdu_buff_replenish(struct ath10k_htt *htt) mod_timer(&htt->rx_ring.refill_retry_timer, jiffies + msecs_to_jiffies(HTT_RX_RING_REFILL_RETRY_MS)); } else if (num_deficit > 0) { - tasklet_schedule(&htt->rx_replenish_task); + mod_timer(&htt->rx_ring.refill_retry_timer, jiffies + + msecs_to_jiffies(HTT_RX_RING_REFILL_RESCHED_MS)); } spin_unlock_bh(&htt->rx_ring.lock); } @@ -223,7 +226,6 @@ int ath10k_htt_rx_ring_refill(struct ath10k *ar) void ath10k_htt_rx_free(struct ath10k_htt *htt) { del_timer_sync(&htt->rx_ring.refill_retry_timer); - tasklet_kill(&htt->rx_replenish_task); tasklet_kill(&htt->txrx_compl_task); skb_queue_purge(&htt->rx_compl_q); @@ -380,13 +382,6 @@ static int ath10k_htt_rx_amsdu_pop(struct ath10k_htt *htt, return msdu_chaining; } -static void ath10k_htt_rx_replenish_task(unsigned long ptr) -{ - struct ath10k_htt *htt = (struct ath10k_htt *)ptr; - - ath10k_htt_rx_msdu_buff_replenish(htt); -} - static struct sk_buff *ath10k_htt_rx_pop_paddr(struct ath10k_htt *htt, u32 paddr) { @@ -520,9 +515,6 @@ int ath10k_htt_rx_alloc(struct ath10k_htt *htt) htt->rx_ring.sw_rd_idx.msdu_payld = 0; hash_init(htt->rx_ring.skb_table); - tasklet_init(&htt->rx_replenish_task, ath10k_htt_rx_replenish_task, - (unsigned long)htt); - skb_queue_head_init(&htt->rx_compl_q); skb_queue_head_init(&htt->rx_in_ord_compl_q); skb_queue_head_init(&htt->tx_fetch_ind_q); @@ -1912,8 +1904,7 @@ static void ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb) return; } } - - tasklet_schedule(&htt->rx_replenish_task); + ath10k_htt_rx_msdu_buff_replenish(htt); } static void ath10k_htt_rx_tx_fetch_resp_id_confirm(struct ath10k *ar, @@ -2471,5 +2462,5 @@ static void ath10k_htt_txrx_compl_task(unsigned long ptr) dev_kfree_skb_any(skb); } - tasklet_schedule(&htt->rx_replenish_task); + ath10k_htt_rx_msdu_buff_replenish(htt); } -- 2.7.4 _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k
next prev parent reply other threads:[~2016-03-22 11:54 UTC|newest] Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-03-22 11:52 [PATCH 0/9] ath10k: improve throughput performance Rajkumar Manoharan 2016-03-22 11:52 ` Rajkumar Manoharan 2016-03-22 11:52 ` [PATCH 1/9] ath10k: speedup htt rx descriptor processing for tx completion Rajkumar Manoharan 2016-03-22 11:52 ` Rajkumar Manoharan 2016-03-24 13:08 ` Valo, Kalle 2016-03-24 13:08 ` Valo, Kalle 2016-03-24 15:52 ` Manoharan, Rajkumar 2016-03-24 15:52 ` Manoharan, Rajkumar 2016-03-24 16:13 ` Manoharan, Rajkumar 2016-03-24 16:13 ` Manoharan, Rajkumar 2016-03-29 7:39 ` Valo, Kalle 2016-03-29 7:39 ` Valo, Kalle 2016-03-29 9:12 ` latest ath10k pending tree bug's Sebastian Gottschall 2016-03-29 11:02 ` Manoharan, Rajkumar 2016-03-29 16:02 ` Sebastian Gottschall 2016-03-22 11:52 ` [PATCH 2/9] ath10k: copy tx fetch indication message Rajkumar Manoharan 2016-03-22 11:52 ` Rajkumar Manoharan 2016-03-22 11:52 ` [PATCH 3/9] ath10k: remove unused fw_desc processing Rajkumar Manoharan 2016-03-22 11:52 ` Rajkumar Manoharan 2016-03-22 11:52 ` [PATCH 4/9] ath10k: cleanup amsdu processing for rx indication Rajkumar Manoharan 2016-03-22 11:52 ` Rajkumar Manoharan 2016-03-22 11:52 ` [PATCH 5/9] ath10k: speedup htt rx descriptor processing for rx_ind Rajkumar Manoharan 2016-03-22 11:52 ` Rajkumar Manoharan 2016-03-22 11:52 ` [PATCH 6/9] ath10k: register ath10k_htt_htc_t2h_msg_handler Rajkumar Manoharan 2016-03-22 11:52 ` Rajkumar Manoharan 2016-03-22 11:52 ` [PATCH 7/9] ath10k: cleanup copy engine receive next completion Rajkumar Manoharan 2016-03-22 11:52 ` Rajkumar Manoharan 2016-03-22 11:52 ` [PATCH 8/9] ath10k: reuse copy engine 5 (htt rx) descriptors Rajkumar Manoharan 2016-03-22 11:52 ` Rajkumar Manoharan 2016-03-22 11:52 ` Rajkumar Manoharan [this message] 2016-03-22 11:52 ` [PATCH 9/9] ath10k: combine txrx and replenish task Rajkumar Manoharan 2016-04-04 14:55 ` [PATCH 0/9] ath10k: improve throughput performance Valo, Kalle 2016-04-04 14:55 ` Valo, Kalle
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