diff options
Diffstat (limited to 'sys/net/ifq.c')
| -rw-r--r-- | sys/net/ifq.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/sys/net/ifq.c b/sys/net/ifq.c index c35f33f642e..bd0764e907f 100644 --- a/sys/net/ifq.c +++ b/sys/net/ifq.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ifq.c,v 1.31 2019/04/16 04:04:19 dlg Exp $ */ +/* $OpenBSD: ifq.c,v 1.32 2019/07/01 00:44:29 dlg Exp $ */ /* * Copyright (c) 2015 David Gwynne <dlg@openbsd.org> @@ -498,8 +498,8 @@ ifiq_destroy(struct ifiqueue *ifiq) ml_purge(&ifiq->ifiq_ml); } -unsigned int ifiq_maxlen_drop = 2048 * 5; -unsigned int ifiq_maxlen_return = 2048 * 3; +unsigned int ifiq_pressure_drop = 8; +unsigned int ifiq_pressure_return = 6; int ifiq_input(struct ifiqueue *ifiq, struct mbuf_list *ml) @@ -508,7 +508,7 @@ ifiq_input(struct ifiqueue *ifiq, struct mbuf_list *ml) struct mbuf *m; uint64_t packets; uint64_t bytes = 0; - unsigned int len; + unsigned int pressure; #if NBPFILTER > 0 caddr_t if_bpf; #endif @@ -552,8 +552,8 @@ ifiq_input(struct ifiqueue *ifiq, struct mbuf_list *ml) ifiq->ifiq_packets += packets; ifiq->ifiq_bytes += bytes; - len = ml_len(&ifiq->ifiq_ml); - if (len > ifiq_maxlen_drop) + pressure = ++ifiq->ifiq_pressure; + if (pressure > ifiq_pressure_drop) ifiq->ifiq_qdrops += ml_len(ml); else ml_enlist(&ifiq->ifiq_ml, ml); @@ -564,7 +564,7 @@ ifiq_input(struct ifiqueue *ifiq, struct mbuf_list *ml) else ml_purge(ml); - return (len > ifiq_maxlen_return); + return (pressure > ifiq_pressure_return); } void @@ -599,6 +599,7 @@ ifiq_process(void *arg) return; mtx_enter(&ifiq->ifiq_mtx); + ifiq->ifiq_pressure = 0; ml = ifiq->ifiq_ml; ml_init(&ifiq->ifiq_ml); mtx_leave(&ifiq->ifiq_mtx); |