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head/sys/netinet/tcp_stacks/rack_bbr_common.c
| Show First 20 Lines • Show All 542 Lines • ▼ Show 20 Lines | if (todrop > tlen | ||||
| TCPSTAT_ADD(tcps_rcvdupbyte, todrop); | TCPSTAT_ADD(tcps_rcvdupbyte, todrop); | ||||
| } else { | } else { | ||||
| TCPSTAT_INC(tcps_rcvpartduppack); | TCPSTAT_INC(tcps_rcvpartduppack); | ||||
| TCPSTAT_ADD(tcps_rcvpartdupbyte, todrop); | TCPSTAT_ADD(tcps_rcvpartdupbyte, todrop); | ||||
| } | } | ||||
| /* | /* | ||||
| * DSACK - add SACK block for dropped range | * DSACK - add SACK block for dropped range | ||||
| */ | */ | ||||
| if (tp->t_flags & TF_SACK_PERMIT) { | if ((todrop > 0) && (tp->t_flags & TF_SACK_PERMIT)) { | ||||
| tcp_update_sack_list(tp, th->th_seq, | tcp_update_sack_list(tp, th->th_seq, | ||||
| th->th_seq + todrop); | th->th_seq + todrop); | ||||
| /* | /* | ||||
| * ACK now, as the next in-sequence segment | * ACK now, as the next in-sequence segment | ||||
| * will clear the DSACK block again | * will clear the DSACK block again | ||||
| */ | */ | ||||
| tp->t_flags |= TF_ACKNOW; | tp->t_flags |= TF_ACKNOW; | ||||
| } | } | ||||
| ▲ Show 20 Lines • Show All 354 Lines • Show Last 20 Lines | |||||