diff options
| author | Manikanta Pubbisetty <mpubbise@codeaurora.org> | 2020-04-09 14:13:17 +0530 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-04-14 11:34:02 +0300 |
| commit | 7395fb496577f0f9abf7fd278f00a8941b2f7ad8 (patch) | |
| tree | 8259c55f1e9b298ff5b38454bb62617ff4c7de50 /drivers/net | |
| parent | 05090864fc7ecfe72558087216fcccc5eb46add8 (diff) | |
ath11k: rx path optimizations
During RX, accessing the reo dest ring descriptor directly is consuming
a lot of CPU cycles. Accessing the descriptor after copying it locally
has improved CPU usage by around ~10-15% while measuring throughput
in RX DBTC test cases(all radios are involved in the throughput
measurement).
HW tested: IPQ8074
Signed-off-by: Manikanta Pubbisetty <mpubbise@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1586421797-885-1-git-send-email-mpubbise@codeaurora.org
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/dp_rx.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c index a3f2c76b3471..203fd44ff352 100644 --- a/drivers/net/wireless/ath/ath11k/dp_rx.c +++ b/drivers/net/wireless/ath/ath11k/dp_rx.c @@ -2403,12 +2403,12 @@ int ath11k_dp_process_rx(struct ath11k_base *ab, int ring_id, try_again: while ((rx_desc = ath11k_hal_srng_dst_get_next_entry(ab, srng))) { - struct hal_reo_dest_ring *desc = (struct hal_reo_dest_ring *)rx_desc; + struct hal_reo_dest_ring desc = *(struct hal_reo_dest_ring *)rx_desc; enum hal_reo_dest_ring_push_reason push_reason; u32 cookie; cookie = FIELD_GET(BUFFER_ADDR_INFO1_SW_COOKIE, - desc->buf_addr_info.info1); + desc.buf_addr_info.info1); buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID, cookie); mac_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_PDEV_ID, cookie); @@ -2436,7 +2436,7 @@ try_again: total_msdu_reaped++; push_reason = FIELD_GET(HAL_REO_DEST_RING_INFO0_PUSH_REASON, - desc->info0); + desc.info0); if (push_reason != HAL_REO_DEST_RING_PUSH_REASON_ROUTING_INSTRUCTION) { dev_kfree_skb_any(msdu); @@ -2444,15 +2444,15 @@ try_again: continue; } - rxcb->is_first_msdu = !!(desc->rx_msdu_info.info0 & + rxcb->is_first_msdu = !!(desc.rx_msdu_info.info0 & RX_MSDU_DESC_INFO0_FIRST_MSDU_IN_MPDU); - rxcb->is_last_msdu = !!(desc->rx_msdu_info.info0 & + rxcb->is_last_msdu = !!(desc.rx_msdu_info.info0 & RX_MSDU_DESC_INFO0_LAST_MSDU_IN_MPDU); - rxcb->is_continuation = !!(desc->rx_msdu_info.info0 & + rxcb->is_continuation = !!(desc.rx_msdu_info.info0 & RX_MSDU_DESC_INFO0_MSDU_CONTINUATION); rxcb->mac_id = mac_id; rxcb->tid = FIELD_GET(HAL_REO_DEST_RING_INFO0_RX_QUEUE_NUM, - desc->info0); + desc.info0); __skb_queue_tail(&msdu_list, msdu); |