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From: Jouni Malinen <jouni@codeaurora.org>
To: Kalle Valo <kvalo@codeaurora.org>
Cc: ath11k@lists.infradead.org, linux-wireless@vger.kernel.org,
	P Praneesh <ppranees@codeaurora.org>,
	Sriram R <srirrama@codeaurora.org>,
	Jouni Malinen <jouni@codeaurora.org>
Subject: [PATCH 04/12] ath11k: avoid additional access to ath11k_hal_srng_dst_num_free
Date: Wed, 16 Jun 2021 00:13:59 +0300	[thread overview]
Message-ID: <20210615211407.92233-5-jouni@codeaurora.org> (raw)
In-Reply-To: <20210615211407.92233-1-jouni@codeaurora.org>

From: P Praneesh <ppranees@codeaurora.org>

In ath11k_dp_process_rx(), after processing rx_desc from
ath11k_hal_srng_dst_get_next_entry(), ath11k_hal_srng_dst_num_free()
is accessed everytime because of done flag is not set.

To avoid this additional access to ath11k_hal_srng_dst_num_free(),
increment total_msdu_reaped only when continuation is not set and
update done flag correspondingly.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1.r2-00012-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01695-QCAHKSWPL_SILICONZ-1

Co-developed-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: P Praneesh <ppranees@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
---
 drivers/net/wireless/ath/ath11k/dp_rx.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index 32c348812769..54ab69959c98 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -2628,7 +2628,6 @@ int ath11k_dp_process_rx(struct ath11k_base *ab, int ring_id,
 				 DMA_FROM_DEVICE);
 
 		num_buffs_reaped[mac_id]++;
-		total_msdu_reaped++;
 
 		push_reason = FIELD_GET(HAL_REO_DEST_RING_INFO0_PUSH_REASON,
 					desc.info0);
@@ -2651,10 +2650,15 @@ int ath11k_dp_process_rx(struct ath11k_base *ab, int ring_id,
 
 		__skb_queue_tail(&msdu_list, msdu);
 
-		if (total_msdu_reaped >= quota && !rxcb->is_continuation) {
+		if (rxcb->is_continuation) {
+			done = false;
+		} else {
+			total_msdu_reaped++;
 			done = true;
-			break;
 		}
+
+		if (total_msdu_reaped >= budget)
+			break;
 	}
 
 	/* Hw might have updated the head pointer after we cached it.
-- 
2.25.1


WARNING: multiple messages have this Message-ID (diff)
From: Jouni Malinen <jouni@codeaurora.org>
To: Kalle Valo <kvalo@codeaurora.org>
Cc: ath11k@lists.infradead.org, linux-wireless@vger.kernel.org,
	P Praneesh <ppranees@codeaurora.org>,
	Sriram R <srirrama@codeaurora.org>,
	Jouni Malinen <jouni@codeaurora.org>
Subject: [PATCH 04/12] ath11k: avoid additional access to ath11k_hal_srng_dst_num_free
Date: Wed, 16 Jun 2021 00:13:59 +0300	[thread overview]
Message-ID: <20210615211407.92233-5-jouni@codeaurora.org> (raw)
In-Reply-To: <20210615211407.92233-1-jouni@codeaurora.org>

From: P Praneesh <ppranees@codeaurora.org>

In ath11k_dp_process_rx(), after processing rx_desc from
ath11k_hal_srng_dst_get_next_entry(), ath11k_hal_srng_dst_num_free()
is accessed everytime because of done flag is not set.

To avoid this additional access to ath11k_hal_srng_dst_num_free(),
increment total_msdu_reaped only when continuation is not set and
update done flag correspondingly.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1.r2-00012-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01695-QCAHKSWPL_SILICONZ-1

Co-developed-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: P Praneesh <ppranees@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
---
 drivers/net/wireless/ath/ath11k/dp_rx.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index 32c348812769..54ab69959c98 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -2628,7 +2628,6 @@ int ath11k_dp_process_rx(struct ath11k_base *ab, int ring_id,
 				 DMA_FROM_DEVICE);
 
 		num_buffs_reaped[mac_id]++;
-		total_msdu_reaped++;
 
 		push_reason = FIELD_GET(HAL_REO_DEST_RING_INFO0_PUSH_REASON,
 					desc.info0);
@@ -2651,10 +2650,15 @@ int ath11k_dp_process_rx(struct ath11k_base *ab, int ring_id,
 
 		__skb_queue_tail(&msdu_list, msdu);
 
-		if (total_msdu_reaped >= quota && !rxcb->is_continuation) {
+		if (rxcb->is_continuation) {
+			done = false;
+		} else {
+			total_msdu_reaped++;
 			done = true;
-			break;
 		}
+
+		if (total_msdu_reaped >= budget)
+			break;
 	}
 
 	/* Hw might have updated the head pointer after we cached it.
-- 
2.25.1


-- 
ath11k mailing list
ath11k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath11k

  parent reply	other threads:[~2021-06-15 21:14 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-15 21:13 [PATCH 00/12] ath11k: optimizations in data path Jouni Malinen
2021-06-15 21:13 ` Jouni Malinen
2021-06-15 21:13 ` [PATCH 01/12] ath11k: disable unused CE8 interrupts for ipq8074 Jouni Malinen
2021-06-15 21:13   ` Jouni Malinen
2021-06-15 21:13 ` [PATCH 02/12] ath11k: allocate dst ring descriptors from cacheable memory Jouni Malinen
2021-06-15 21:13   ` Jouni Malinen
2021-06-28 15:19   ` Jeff Johnson
2021-06-28 15:19     ` Jeff Johnson
2021-06-15 21:13 ` [PATCH 03/12] ath11k: modify dp_rx desc access wrapper calls inline Jouni Malinen
2021-06-15 21:13   ` Jouni Malinen
2021-06-15 21:13 ` Jouni Malinen [this message]
2021-06-15 21:13   ` [PATCH 04/12] ath11k: avoid additional access to ath11k_hal_srng_dst_num_free Jouni Malinen
2021-06-15 21:14 ` [PATCH 05/12] ath11k: avoid active pdev check for each msdu Jouni Malinen
2021-06-15 21:14   ` Jouni Malinen
2021-06-15 21:14 ` [PATCH 06/12] ath11k: remove usage quota while processing rx packets Jouni Malinen
2021-06-15 21:14   ` Jouni Malinen
2021-06-15 21:14 ` [PATCH 07/12] ath11k: add branch predictors in process_rx Jouni Malinen
2021-06-15 21:14   ` Jouni Malinen
2021-06-15 21:14 ` [PATCH 08/12] ath11k: allocate HAL_WBM2SW_RELEASE ring from cacheable memory Jouni Malinen
2021-06-15 21:14   ` Jouni Malinen
2021-06-15 21:14 ` [PATCH 09/12] ath11k: remove mod operator in dst ring processing Jouni Malinen
2021-06-15 21:14   ` Jouni Malinen
2021-06-15 21:14 ` [PATCH 10/12] ath11k: avoid while loop in ring selection of tx completion interrupt Jouni Malinen
2021-06-15 21:14   ` Jouni Malinen
2021-06-15 21:14 ` [PATCH 11/12] ath11k: add branch predictors in dp_tx path Jouni Malinen
2021-06-15 21:14   ` Jouni Malinen
2021-06-15 21:14 ` [PATCH 12/12] ath11k: avoid unnecessary lock contention in tx_completion path Jouni Malinen
2021-06-15 21:14   ` Jouni Malinen
2021-06-29 17:35   ` Felix Fietkau
2021-06-29 17:35     ` Felix Fietkau
2021-06-30  5:17     ` P Praneesh
2021-06-30  5:17       ` P Praneesh

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