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drivers: ethernet: Optimize RxBD buffer configuration

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The _nxp_enet_dma_buffer_section is configured to __nocache area.
That makes the RxPkt performance very low (<= 50Mbps). By defining
it to the cacheable area, the RxPkt performance is >10x better.

Example with Zperf:
DUT command - zperf udp download 5001
PC command - iperf -u -c 192.0.2.1 -p 5001 -b 800M

Signed-off-by: Shrek Wang <shrek.wang@nxp.com>
This commit is contained in:
Shrek Wang 2024-11-28 15:03:10 +08:00 committed by Anas Nashif
parent 9f6fdae430
commit 3606b815d0
1 changed files with 2 additions and 2 deletions
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4
drivers/ethernet/nxp_enet/eth_nxp_enet.c
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@ -893,9 +893,9 @@ static const struct ethernet_api api_funcs = {
#define driver_cache_maintain false #define driver_cache_maintain false
#elif defined(CONFIG_NOCACHE_MEMORY) #elif defined(CONFIG_NOCACHE_MEMORY)
#define _nxp_enet_dma_desc_section __nocache #define _nxp_enet_dma_desc_section __nocache
#define _nxp_enet_dma_buffer_section __nocache #define _nxp_enet_dma_buffer_section
#define _nxp_enet_driver_buffer_section #define _nxp_enet_driver_buffer_section
#define driver_cache_maintain false #define driver_cache_maintain true
#else #else
#define _nxp_enet_dma_desc_section #define _nxp_enet_dma_desc_section
#define _nxp_enet_dma_buffer_section #define _nxp_enet_dma_buffer_section