Change Details

On a TSO enabled NIC, with the receiver also using TSO and LRO, verify that TSO chunks up to 4 SMSS show up in a packet capture.

On a TSO enabled NIC, with the receiver also using TSO and LRO, verify that TSO chunks of more than 1 SMSS show up in a packet capture. Also, when taking an RTO during a SACK loss recovery episode, the flight size increases as per SlowStart and Congestion Avoidance while excluding the re-transmission of previously SACKed data. Note that additional losses in that phase result in very small congestion windows (since cwnd is reduced multiple times), and entering a loss recovery then can result in lengthy recovery until snd_max is finally reached.

On a TSO enabled NIC, with the receiver also using TSO and LRO, verify that TSO chunks up to 4of more than 1 SMSS show up in a packet capture. Also, when taking an RTO during a SACK loss recovery episode, the flight size increases as per SlowStart and Congestion Avoidance while excluding the re-transmission of previously SACKed data. Note that additional losses in that phase result in very small congestion windows (since cwnd is reduced multiple times), and entering a loss recovery then can result in lengthy recovery until snd_max is finally reached.