diff options
author | np <np@FreeBSD.org> | 2017-05-24 03:56:48 +0000 |
---|---|---|
committer | np <np@FreeBSD.org> | 2017-05-24 03:56:48 +0000 |
commit | fed43ed978f905895080b6863da04d67b31f38e5 (patch) | |
tree | c3146f180016b5b0465400ec157c083a405e270d | |
parent | 4a711a1dc5df45956b96a38a5ed476802c064a64 (diff) | |
download | FreeBSD-src-fed43ed978f905895080b6863da04d67b31f38e5.zip FreeBSD-src-fed43ed978f905895080b6863da04d67b31f38e5.tar.gz |
MFC r317170, r317389, and r317390.
r317170:
Remove redundant assignment.
r317389:
Frames that are not considered for LRO should not be counted in LRO
statistics.
r317390:
Flush the LRO ctrl as soon as lro_mbufs fills up. There is no need to
wait for the next enqueue from the driver.
Sponsored by: Chelsio Communications
-rw-r--r-- | sys/netinet/tcp_lro.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/sys/netinet/tcp_lro.c b/sys/netinet/tcp_lro.c index cb8cc06..cd235b5 100644 --- a/sys/netinet/tcp_lro.c +++ b/sys/netinet/tcp_lro.c @@ -110,7 +110,6 @@ tcp_lro_init_args(struct lro_ctrl *lc, struct ifnet *ifp, lc->lro_bad_csum = 0; lc->lro_queued = 0; lc->lro_flushed = 0; - lc->lro_cnt = 0; lc->lro_mbuf_count = 0; lc->lro_mbuf_max = lro_mbufs; lc->lro_cnt = lro_entries; @@ -889,18 +888,12 @@ tcp_lro_queue_mbuf(struct lro_ctrl *lc, struct mbuf *mb) /* check if packet is not LRO capable */ if (__predict_false(mb->m_pkthdr.csum_flags == 0 || (lc->ifp->if_capenable & IFCAP_LRO) == 0)) { - lc->lro_flushed++; - lc->lro_queued++; /* input packet to network layer */ (*lc->ifp->if_input) (lc->ifp, mb); return; } - /* check if array is full */ - if (__predict_false(lc->lro_mbuf_count == lc->lro_mbuf_max)) - tcp_lro_flush_all(lc); - /* create sequence number */ lc->lro_mbuf_data[lc->lro_mbuf_count].seq = (((uint64_t)M_HASHTYPE_GET(mb)) << 56) | @@ -908,7 +901,11 @@ tcp_lro_queue_mbuf(struct lro_ctrl *lc, struct mbuf *mb) ((uint64_t)lc->lro_mbuf_count); /* enter mbuf */ - lc->lro_mbuf_data[lc->lro_mbuf_count++].mb = mb; + lc->lro_mbuf_data[lc->lro_mbuf_count].mb = mb; + + /* flush if array is full */ + if (__predict_false(++lc->lro_mbuf_count == lc->lro_mbuf_max)) + tcp_lro_flush_all(lc); } /* end */ |