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ath11k: avoid additional access to ath11k_hal_srng_dst_num_free

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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: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: P Praneesh <ppranees@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1630560820-21905-5-git-send-email-ppranees@codeaurora.org
This commit is contained in:
P Praneesh
2021-11-12 11:02:12 +02:00
committed by Kalle Valo
parent 5e76fe03db
commit a1775e732e
1 changed files with 7 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/wireless/ath/ath11k/dp_rx.c
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@@ -2701,7 +2701,6 @@ try_again:
DMA_FROM_DEVICE);
num_buffs_reaped[mac_id]++;
total_msdu_reaped++;
push_reason = FIELD_GET(HAL_REO_DEST_RING_INFO0_PUSH_REASON,
desc.info0);
@@ -2728,10 +2727,15 @@ try_again:
rxcb->mac_id = mac_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.