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Differential D21038 Diff 60073 sys/netinet/tcp_stacks/rack.c

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sys/netinet/tcp_stacks/rack.c

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Show First 20 Lines • Show All 1,781 Lines • ▼ Show 20 Lines if (todrop > tlen
tp->t_flags |= TF_ACKNOW; tp->t_flags |= TF_ACKNOW;
todrop = tlen; todrop = tlen;
TCPSTAT_INC(tcps_rcvduppack); TCPSTAT_INC(tcps_rcvduppack);
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);
} }
if (tp->t_flags & TF_SACK_PERMIT) {
rrsUnsubmitted
Done
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This block may be a duplicate of whats in rack_bbr_common.c

Please look in that file to verify.

R

rrs: This block may be a duplicate of whats in rack_bbr_common.c Please look in that file to verify.
rscheffAuthorUnsubmitted
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There is no rack_bbr_common.c in the upstream (yet). Only the header file, which doesn't contain any code.

Shall I add a comment that this needs to be checked once bbr is merged to upstream?

rscheff: There is no rack_bbr_common.c in the upstream (yet). Only the header file, which doesn't…
tuexenUnsubmitted
Done
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I think is it in head: rack_bbr_common.c.

tuexen: I think is it in head: [[ https://svnweb.freebsd.
/*
* record the left, to-be-dropped edge of data
* here, for use as dsack block further down
*/
tcp_update_sack_list(tp, th->th_seq,
th->th_seq + todrop);
}
*drop_hdrlen += todrop; /* drop from the top afterwards */ *drop_hdrlen += todrop; /* drop from the top afterwards */
th->th_seq += todrop; th->th_seq += todrop;
tlen -= todrop; tlen -= todrop;
if (th->th_urp > todrop) if (th->th_urp > todrop)
th->th_urp -= todrop; th->th_urp -= todrop;
else { else {
thflags &= ~TH_URG; thflags &= ~TH_URG;
th->th_urp = 0; th->th_urp = 0;
▲ Show 20 Lines • Show All 3,141 Lines • ▼ Show 20 Lines if (((tlen == 0) && (save_tlen > 0) &&
* above. * above.
*/ */
tcp_update_sack_list(tp, save_start, save_start + save_tlen); tcp_update_sack_list(tp, save_start, save_start + save_tlen);
} else if ((tlen > 0) && SEQ_GT(tp->rcv_nxt, save_rnxt)) { } else if ((tlen > 0) && SEQ_GT(tp->rcv_nxt, save_rnxt)) {
/* /*
* Cleaning sackblks by using zero length * Cleaning sackblks by using zero length
* update. * update.
*/ */
tcp_update_sack_list(tp, save_start, save_start); if ((tp->rcv_numsacks >= 1) &&
(tp->sackblks[0].end == save_start)) {
/* partial overlap, recorded at todrop above */
tcp_update_sack_list(tp, tp->sackblks[0].start,
tp->sackblks[0].end);
} else {
tcp_update_dsack_list(tp, save_start,
save_start + save_tlen);
}
} else if ((tlen > 0) && (tlen >= save_tlen)) { } else if ((tlen > 0) && (tlen >= save_tlen)) {
/* Update of sackblks. */ /* Update of sackblks. */
tcp_update_sack_list(tp, save_start, save_start + save_tlen); tcp_update_dsack_list(tp, save_start,
save_start + save_tlen);
} else if (tlen > 0) { } else if (tlen > 0) {
tcp_update_sack_list(tp, save_start, save_start+tlen); tcp_update_dsack_list(tp, save_start,
save_start + tlen);
} }
} else { } else {
m_freem(m); m_freem(m);
thflags &= ~TH_FIN; thflags &= ~TH_FIN;
} }
/* /*
* If FIN is received ACK the FIN and let the user know that the * If FIN is received ACK the FIN and let the user know that the
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