- Updated TOE support in the kernel.

- Stateful TCP offload drivers for Terminator 3 and 4 (T3 and T4) ASICs.
  These are available as t3_tom and t4_tom modules that augment cxgb(4)
  and cxgbe(4) respectively.  The cxgb/cxgbe drivers continue to work as
  usual with or without these extra features.

- iWARP driver for Terminator 3 ASIC (kernel verbs).  T4 iWARP in the
  works and will follow soon.

Build-tested with make universe.

30s overview
============
What interfaces support TCP offload?  Look for TOE4 and/or TOE6 in the
capabilities of an interface:
# ifconfig -m | grep TOE

Enable/disable TCP offload on an interface (just like any other ifnet
capability):
# ifconfig cxgbe0 toe
# ifconfig cxgbe0 -toe

Which connections are offloaded?  Look for toe4 and/or toe6 in the
output of netstat and sockstat:
# netstat -np tcp | grep toe
# sockstat -46c | grep toe

Reviewed by:	bz, gnn
Sponsored by:	Chelsio communications.
MFC after:	~3 months (after 9.1, and after ensuring MFC is feasible)

1 files changed, 12 insertions, 3 deletions

diff --git a/sys/modules/cxgb/iw_cxgb/Makefile b/sys/modules/cxgb/iw_cxgb/Makefile
index 2cf2ef8..f633bd5 100644
--- a/sys/modules/cxgb/iw_cxgb/Makefile
+++ b/sys/modules/cxgb/iw_cxgb/Makefile
@@ -1,5 +1,7 @@
 # $FreeBSD$
 
+.include <bsd.own.mk>
+
 CXGB = ${.CURDIR}/../../../dev/cxgb
 .PATH: ${CXGB}/ulp/iw_cxgb
 
@@ -8,8 +10,15 @@ SRCS=   iw_cxgb.c iw_cxgb_cm.c iw_cxgb_hal.c
 SRCS+=  iw_cxgb_provider.c iw_cxgb_qp.c iw_cxgb_resource.c
 SRCS+=  iw_cxgb_ev.c iw_cxgb_mem.c iw_cxgb_dbg.c iw_cxgb_cq.c
 SRCS+=  bus_if.h device_if.h opt_sched.h pci_if.h pcib_if.h opt_ktr.h
-SRCS+=  opt_inet.h
-CFLAGS+= -g -I${CXGB}
-#CFLAGS+= -DDEBUG
+SRCS+=  opt_inet.h opt_ofed.h vnode_if.h
+CFLAGS+= -I${CXGB} -I${.CURDIR}/../../../ofed/include -DLINUX_TYPES_DEFINED
+
+.if !defined(KERNBUILDDIR)
+.if ${MK_INET_SUPPORT} != "no"
+opt_inet.h:
+	echo "#define INET 1" > ${.TARGET}
+	echo "#define TCP_OFFLOAD 1" >> ${.TARGET}
+.endif
+.endif
 
 .include <bsd.kmod.mk>