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

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Prefetch RX HW desc, SW desc and SKB in pipeline
fasion in the first loop of RX processing.

This has improved TPUT by 200Mbps and provided a
10% gain in CPU (single core)

PINE with other optimizations: 3960Mbps @ 100% core-3
PINE + pipeline prefetch: 4130Mbps @ 90%  core-3

Change-Id: I47f351601b264eb3a2b50e4154229d55da738724
This commit is contained in:
Tallapragada Kalyan
2021-10-31 00:29:20 +05:30
committed by Madan Koyyalamudi
parent e3c327a0ba
commit 4e7ceff561
4 changed files with 175 additions and 0 deletions
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24
dp/wifi3.0/dp_internal.h
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@@ -2435,6 +2435,30 @@ static inline void dp_srng_dst_inv_cached_descs(struct dp_soc *dp_soc,
}
#endif /* QCA_CACHED_RING_DESC */
#if defined(QCA_CACHED_RING_DESC) && defined(QCA_DP_RX_HW_SW_NBUF_DESC_PREFETCH)
/**
* dp_srng_dst_prefetch() - Wrapper function to prefetch descs from dest ring
* @hal_soc_hdl: HAL SOC handle
* @hal_ring: opaque pointer to the HAL Rx Destination ring
* @num_entries: Entry count
*
* Return: None
*/
static inline void *dp_srng_dst_prefetch(hal_soc_handle_t hal_soc,
hal_ring_handle_t hal_ring_hdl,
uint32_t num_entries)
{
return hal_srng_dst_prefetch(hal_soc, hal_ring_hdl, num_entries);
}
#else
static inline void *dp_srng_dst_prefetch(hal_soc_handle_t hal_soc,
hal_ring_handle_t hal_ring_hdl,
uint32_t num_entries)
{
return NULL;
}
#endif
#ifdef QCA_ENH_V3_STATS_SUPPORT
/**
* dp_pdev_print_delay_stats(): Print pdev level delay stats