samsung-sm8650/android_kernel_samsung_sm8650-modules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

qcacmn: Prefetch Tx HW desc, SW desc and SKB in pipeline fashion

Browse Source 
Prefetch TX HW desc, SW desc and SKB in pipeline fashion in Tx.
completion path.
This improves the UDP DL CPU idle% by ~4.5%

Change-Id: I48096e996cd835321ce2681d3981fa94c7189f54
This commit is contained in:
Neha Bisht
2021-10-28 12:22:36 +05:30
committed by Madan Koyyalamudi
parent d927fa2e18
commit 15b88ae15e
5 changed files with 143 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

52
dp/wifi3.0/dp_tx.h
View File

@@ -1,6 +1,6 @@
/*
* Copyright (c) 2016-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2021 Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2021,2022 Qualcomm Innovation Center, Inc. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
@@ -388,6 +388,56 @@ static inline QDF_STATUS dp_tx_pdev_init(struct dp_pdev *pdev)
return QDF_STATUS_SUCCESS;
}
/**
* dp_tx_prefetch_hw_sw_nbuf_desc() - function to prefetch HW and SW desc
* @soc: Handle to HAL Soc structure
* @hal_soc: HAL SOC handle
* @num_avail_for_reap: descriptors available for reap
* @hal_ring_hdl: ring pointer
* @last_prefetched_hw_desc: pointer to the last prefetched HW descriptor
* @last_prefetched_sw_desc: pointer to last prefetch SW desc
*
* Return: None
*/
#ifdef QCA_DP_TX_HW_SW_NBUF_DESC_PREFETCH
static inline
void dp_tx_prefetch_hw_sw_nbuf_desc(struct dp_soc *soc,
hal_soc_handle_t hal_soc,
uint32_t num_avail_for_reap,
hal_ring_handle_t hal_ring_hdl,
void **last_prefetched_hw_desc,
struct dp_tx_desc_s
**last_prefetched_sw_desc)
{
if (*last_prefetched_sw_desc) {
qdf_prefetch((uint8_t *)(*last_prefetched_sw_desc)->nbuf);
qdf_prefetch((uint8_t *)(*last_prefetched_sw_desc)->nbuf + 64);
}
if (num_avail_for_reap && *last_prefetched_hw_desc) {
dp_tx_comp_get_prefetched_params_from_hal_desc(
soc,
*last_prefetched_hw_desc,
last_prefetched_sw_desc);
*last_prefetched_hw_desc =
hal_srng_dst_prefetch_next_cached_desc(
hal_soc,
hal_ring_hdl,
(uint8_t *)*last_prefetched_hw_desc);
}
}
#else
static inline
void dp_tx_prefetch_hw_sw_nbuf_desc(struct dp_soc *soc,
hal_soc_handle_t hal_soc,
uint32_t num_avail_for_reap,
hal_ring_handle_t hal_ring_hdl,
void **last_prefetched_hw_desc,
struct dp_tx_desc_s
**last_prefetched_sw_desc)
{
}
#endif
#ifndef FEATURE_WDS
static inline void dp_tx_mec_handler(struct dp_vdev *vdev, uint8_t *status)