Re: [PATCH net-next 2/2] tcp: put a TLV list of TCP stats in error queue

2016-09-07 Thread Eric Dumazet
On Tue, 2016-09-06 at 18:32 -0700, Francis Y. Yan wrote: > To export useful TCP statistics along with timestamps, such as > rwnd-limited time and min RTT, we enqueue a TLV list in error queue > immediately when a timestamp is generated. > > Specifically, if user space requests SOF_TIMESTAMPING_TX_

Re: [PATCH net-next 2/2] tcp: put a TLV list of TCP stats in error queue

2016-09-06 Thread Soheil Hassas Yeganeh
On Tue, Sep 6, 2016 at 9:32 PM, Francis Y. Yan wrote: > > To export useful TCP statistics along with timestamps, such as > rwnd-limited time and min RTT, we enqueue a TLV list in error queue > immediately when a timestamp is generated. > > Specifically, if user space requests SOF_TIMESTAMPING_TX_*

[PATCH net-next 2/2] tcp: put a TLV list of TCP stats in error queue

2016-09-06 Thread Francis Y. Yan
To export useful TCP statistics along with timestamps, such as rwnd-limited time and min RTT, we enqueue a TLV list in error queue immediately when a timestamp is generated. Specifically, if user space requests SOF_TIMESTAMPING_TX_* timestamps and sets SOF_TIMESTAMPING_OPT_STATS, the kernel will c