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在流量压力测试情况下,AM335x的linux 平台下出现网络发送硬中断无法获取发送时间戳现象

Other Parts Discussed in Thread: AM3358

环境:pdk3.0  中的linux-rt-4.4.1,硬件为am3358,

目的:为了验证cpts逻辑在高流量压力测试情况时间戳生成与处理情况,

结果:在高流量情况下,目前linux-rt-4.4.1中cpts.c中的处理,存在一种现象在“ cpts_find_ts(cpts, skb, CPTS_EV_TX) 时无法获取相应的event事件”,测试结果发现,该事件产生滞后于网卡中断的硬处理逻辑,故无法获取时间戳,这种现象该如何解决?????是am335x mac层的bug吗?