Author: vmaffione Date: Tue Nov 24 19:55:01 2020 New Revision: 367996 URL: https://svnweb.freebsd.org/changeset/base/367996
Log: MFC r367920, r367921 netmap: bridge: update man page with more information Update the man page to describe how it is necessary to enable promiscuous mode and/or disable offloads. Modified: stable/12/tools/tools/netmap/bridge.8 stable/12/tools/tools/netmap/pkt-gen.8 Directory Properties: stable/12/ (props changed) Modified: stable/12/tools/tools/netmap/bridge.8 ============================================================================== --- stable/12/tools/tools/netmap/bridge.8 Tue Nov 24 17:53:13 2020 (r367995) +++ stable/12/tools/tools/netmap/bridge.8 Tue Nov 24 19:55:01 2020 (r367996) @@ -23,7 +23,7 @@ .\" .\" $FreeBSD$ .\" -.Dd October 28, 2018 +.Dd November 21, 2020 .Dt BRIDGE 8 .Os .Sh NAME @@ -49,6 +49,20 @@ forwards packets without copying the packets payload ( explicitly prevented by the .Fl c flag. +.Pp +When bridging two physical ports, it is necessary that both NICS are in +promiscuous mode, otherwise unicast traffic directed to other hosts will +be dropped by the hardware, and bridging will not work. +.Pp +When bridging the hardware rings of a physical port with the corresponding +host rings, it is necessary to turn off the offloads, because netmap does +not prepare the NIC rings with offload information. +Example: +.Bd -literal -offset indent +ifconfig em0 -rxcsum -txcsum -tso4 -tso6 -lro +.Ed +.Pp +Available options: .Bl -tag -width Ds .It Fl i Ar port Name of the netmap port. @@ -71,8 +85,8 @@ Disable zero-copy mode. .El .Sh SEE ALSO .Xr netmap 4 , -.Xr pkt-gen 8 , -.Xr lb 8 +.Xr lb 8 , +.Xr pkt-gen 8 .Sh AUTHORS .An -nosplit .Nm Modified: stable/12/tools/tools/netmap/pkt-gen.8 ============================================================================== --- stable/12/tools/tools/netmap/pkt-gen.8 Tue Nov 24 17:53:13 2020 (r367995) +++ stable/12/tools/tools/netmap/pkt-gen.8 Tue Nov 24 19:55:01 2020 (r367996) @@ -25,7 +25,7 @@ .\" .\" $FreeBSD$ .\" -.Dd October 3, 2020 +.Dd November 21, 2020 .Dt PKT-GEN 8 .Os .Sh NAME @@ -287,7 +287,7 @@ Send a stream of fake DNS packets between two hosts wi length of 128 bytes. You must set the destination MAC address for packets to be received by the target host. -.Bd -literal -offset intent +.Bd -literal -offset indent pkt-gen -i netmap:ncxl0 -f tx -s 172.16.0.1:53 -d 172.16.1.3:53 -D 00:07:43:29:2a:e0 .Ed .Sh SEE ALSO _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"