Hi, I would suggest to rename ifconfig tcprecvoffload to tcplro. Maybe it's just because I had to type that long name too often.
With that we have consistent naming: # ifconfig ix0 tcplro # sysctl net.inet.tcp.tso=1 Also the coresponding flag are named LRO. # ifconfig ix1 hwfeatures ix1: flags=2008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LRO> mtu 1500 hwfeatures=71b7<CSUM_IPv4,CSUM_TCPv4,CSUM_UDPv4,VLAN_MTU,VLAN_HWTAGGING,CSUM_TCPv6,CSUM_UDPv6,TSOv4,TSOv6,LRO> hardmtu 9198 The feature is quite new, so I have no backward compatiblity concerns. ok? bluhm Index: sbin/ifconfig/ifconfig.8 =================================================================== RCS file: /data/mirror/openbsd/cvs/src/sbin/ifconfig/ifconfig.8,v retrieving revision 1.396 diff -u -p -r1.396 ifconfig.8 --- sbin/ifconfig/ifconfig.8 1 Jun 2023 18:57:53 -0000 1.396 +++ sbin/ifconfig/ifconfig.8 6 Jun 2023 12:18:07 -0000 @@ -501,7 +501,7 @@ Query and display information and diagno modules installed in an interface. It is only supported by drivers implementing the necessary functionality on hardware which supports it. -.It Cm tcprecvoffload +.It Cm tcplro Enable TCP large receive offload (LRO) if it's supported by the hardware; see .Cm hwfeatures . LRO enabled network interfaces modify received TCP/IP packets. @@ -517,7 +517,7 @@ It is not possible to use LRO with inter or .Xr tpmr 4 . Changing this option will re-initialize the network interface. -.It Cm -tcprecvoffload +.It Cm -tcplro Disable LRO. LRO is disabled by default. .It Cm up Index: sbin/ifconfig/ifconfig.c =================================================================== RCS file: /data/mirror/openbsd/cvs/src/sbin/ifconfig/ifconfig.c,v retrieving revision 1.465 diff -u -p -r1.465 ifconfig.c --- sbin/ifconfig/ifconfig.c 1 Jun 2023 18:57:54 -0000 1.465 +++ sbin/ifconfig/ifconfig.c 6 Jun 2023 12:18:59 -0000 @@ -471,8 +471,8 @@ const struct cmd { { "-soii", IFXF_INET6_NOSOII, 0, setifxflags }, { "monitor", IFXF_MONITOR, 0, setifxflags }, { "-monitor", -IFXF_MONITOR, 0, setifxflags }, - { "tcprecvoffload", IFXF_LRO, 0, setifxflags }, - { "-tcprecvoffload", -IFXF_LRO, 0, setifxflags }, + { "tcplro", IFXF_LRO, 0, setifxflags }, + { "-tcplro", -IFXF_LRO, 0, setifxflags }, #ifndef SMALL { "hwfeatures", NEXTARG0, 0, printifhwfeatures }, { "metric", NEXTARG, 0, setifmetric },