Change Details

Proper TCP Cubic operation requires the knowledge of the maximum congestion window prior to the last congestion event. The old structure of the generic cc_cong_event handler did not lend itself to retain this value. Restructuring the assignment of cwnd to a single MSS into the CC-specific cong_event handlers. Those not touched here default to using the newreno cong-event handling for RTO. Found by cheng during internal validation testing.

Proper TCP Cubic operation requires the knowledge of the maximum congestion window prior to the last congestion event. The old structure of the generic cc_cong_event handler did not lend itself to retain this value. Restructuring the assignment of cwnd to a single MSS into the CC-specific cong_event handlers. Those not touched here default to using the newreno cong-event handling for RTO. Found by cheng during internal validation testing. Note that jtl@ did address cubic related aspects in rS307901 before, but due to that being conflated with other, larger changes, that cubic bugfix was fully reverted again in r321480, with only the block brackets restored again in rS321587

Proper TCP Cubic operation requires the knowledge of the maximum congestion window prior to the last congestion event. The old structure of the generic cc_cong_event handler did not lend itself to retain this value. Restructuring the assignment of cwnd to a single MSS into the CC-specific cong_event handlers. Those not touched here default to using the newreno cong-event handling for RTO. Found by cheng during internal validation testing. Note that jtl@ did address cubic related aspects in rS307901 before, but due to that being conflated with other, larger changes, that cubic bugfix was fully reverted again in r321480, with only the block brackets restored again in rS321587