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From: P Praneesh <ppranees@codeaurora.org>
To: 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 v2 10/12] ath11k: avoid while loop in ring selection of tx completion interrupt
Date: Wed, 25 Aug 2021 15:07:55 +0530	[thread overview]
Message-ID: <1629884277-18759-11-git-send-email-ppranees@codeaurora.org> (raw)
In-Reply-To: <1629884277-18759-1-git-send-email-ppranees@codeaurora.org>

Currently while loop is used to find the tx completion ring number and
it is not required since the tx ring mask and the group id can be combined
to directly fetch the ring number. Hence remove the while loop
and directly get the ring number from tx mask and group id.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01734-QCAHKSWPL_SILICONZ-1 v2

Co-developed-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: P Praneesh <ppranees@codeaurora.org>
---
 drivers/net/wireless/ath/ath11k/dp.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/dp.c b/drivers/net/wireless/ath/ath11k/dp.c
index e4fc2ba..a39cbc7 100644
--- a/drivers/net/wireless/ath/ath11k/dp.c
+++ b/drivers/net/wireless/ath/ath11k/dp.c
@@ -770,13 +770,12 @@ int ath11k_dp_service_srng(struct ath11k_base *ab,
 	struct napi_struct *napi = &irq_grp->napi;
 	int grp_id = irq_grp->grp_id;
 	int work_done = 0;
-	int i = 0, j;
+	int i, j;
 	int tot_work_done = 0;
 
-	while (ab->hw_params.ring_mask->tx[grp_id] >> i) {
-		if (ab->hw_params.ring_mask->tx[grp_id] & BIT(i))
-			ath11k_dp_tx_completion_handler(ab, i);
-		i++;
+	if (ab->hw_params.ring_mask->tx[grp_id]) {
+		i = __fls(ab->hw_params.ring_mask->tx[grp_id]);
+		ath11k_dp_tx_completion_handler(ab, i);
 	}
 
 	if (ab->hw_params.ring_mask->rx_err[grp_id]) {
-- 
2.7.4


WARNING: multiple messages have this Message-ID (diff)
From: P Praneesh <ppranees@codeaurora.org>
To: 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 v2 10/12] ath11k: avoid while loop in ring selection of tx completion interrupt
Date: Wed, 25 Aug 2021 15:07:55 +0530	[thread overview]
Message-ID: <1629884277-18759-11-git-send-email-ppranees@codeaurora.org> (raw)
In-Reply-To: <1629884277-18759-1-git-send-email-ppranees@codeaurora.org>

Currently while loop is used to find the tx completion ring number and
it is not required since the tx ring mask and the group id can be combined
to directly fetch the ring number. Hence remove the while loop
and directly get the ring number from tx mask and group id.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01734-QCAHKSWPL_SILICONZ-1 v2

Co-developed-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: P Praneesh <ppranees@codeaurora.org>
---
 drivers/net/wireless/ath/ath11k/dp.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/dp.c b/drivers/net/wireless/ath/ath11k/dp.c
index e4fc2ba..a39cbc7 100644
--- a/drivers/net/wireless/ath/ath11k/dp.c
+++ b/drivers/net/wireless/ath/ath11k/dp.c
@@ -770,13 +770,12 @@ int ath11k_dp_service_srng(struct ath11k_base *ab,
 	struct napi_struct *napi = &irq_grp->napi;
 	int grp_id = irq_grp->grp_id;
 	int work_done = 0;
-	int i = 0, j;
+	int i, j;
 	int tot_work_done = 0;
 
-	while (ab->hw_params.ring_mask->tx[grp_id] >> i) {
-		if (ab->hw_params.ring_mask->tx[grp_id] & BIT(i))
-			ath11k_dp_tx_completion_handler(ab, i);
-		i++;
+	if (ab->hw_params.ring_mask->tx[grp_id]) {
+		i = __fls(ab->hw_params.ring_mask->tx[grp_id]);
+		ath11k_dp_tx_completion_handler(ab, i);
 	}
 
 	if (ab->hw_params.ring_mask->rx_err[grp_id]) {
-- 
2.7.4


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

  parent reply	other threads:[~2021-08-25  9:39 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-25  9:37 [PATCH v2 00/12] ath11k: optimizations in data path P Praneesh
2021-08-25  9:37 ` P Praneesh
2021-08-25  9:37 ` [PATCH v2 01/12] ath11k: disable unused CE8 interrupts for ipq8074 P Praneesh
2021-08-25  9:37   ` P Praneesh
2021-08-25  9:37 ` [PATCH v2 02/12] ath11k: allocate dst ring descriptors from cacheable memory P Praneesh
2021-08-25  9:37   ` P Praneesh
2021-08-25 18:45   ` Peter Oh
2021-08-25 18:45     ` Peter Oh
2021-08-25  9:37 ` [PATCH v2 03/12] ath11k: modify dp_rx desc access wrapper calls inline P Praneesh
2021-08-25  9:37   ` P Praneesh
2021-08-25  9:37 ` [PATCH v2 04/12] ath11k: avoid additional access to ath11k_hal_srng_dst_num_free P Praneesh
2021-08-25  9:37   ` P Praneesh
2021-08-25  9:37 ` [PATCH v2 05/12] ath11k: avoid active pdev check for each msdu P Praneesh
2021-08-25  9:37   ` P Praneesh
2021-08-25  9:37 ` [PATCH v2 06/12] ath11k: remove usage quota while processing rx packets P Praneesh
2021-08-25  9:37   ` P Praneesh
2021-08-25  9:37 ` [PATCH v2 07/12] ath11k: add branch predictors in process_rx P Praneesh
2021-08-25  9:37   ` P Praneesh
2021-08-25 22:49   ` Sergey Ryazanov
2021-08-25 22:49     ` Sergey Ryazanov
2021-08-25  9:37 ` [PATCH v2 08/12] ath11k: allocate HAL_WBM2SW_RELEASE ring from cacheable memory P Praneesh
2021-08-25  9:37   ` P Praneesh
2021-08-25  9:37 ` [PATCH v2 09/12] ath11k: remove mod operator in dst ring processing P Praneesh
2021-08-25  9:37   ` P Praneesh
2021-08-25  9:37 ` P Praneesh [this message]
2021-08-25  9:37   ` [PATCH v2 10/12] ath11k: avoid while loop in ring selection of tx completion interrupt P Praneesh
2021-08-25  9:37 ` [PATCH v2 11/12] ath11k: add branch predictors in dp_tx path P Praneesh
2021-08-25  9:37   ` P Praneesh
2021-08-25 23:02   ` Sergey Ryazanov
2021-08-25 23:02     ` Sergey Ryazanov
2021-08-25  9:37 ` [PATCH v2 12/12] ath11k: avoid unnecessary lock contention in tx_completion path P Praneesh
2021-08-25  9:37   ` P Praneesh
2021-08-25 21:56   ` Peter Oh
2021-08-25 21:56     ` Peter Oh

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