Here is a diff to enable the checksum offload support for bnx(4).
Looking for any testing.
Index: if_bnx.c
===================================================================
RCS file: /home/cvs/src/sys/dev/pci/if_bnx.c,v
retrieving revision 1.101
diff -u -p -r1.101 if_bnx.c
--- if_bnx.c 28 Mar 2013 17:21:44 -0000 1.101
+++ if_bnx.c 9 Sep 2013 18:43:07 -0000
@@ -884,11 +884,8 @@ bnx_attachhook(void *xsc)
bcopy(sc->eaddr, sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
bcopy(sc->bnx_dev.dv_xname, ifp->if_xname, IFNAMSIZ);
- ifp->if_capabilities = IFCAP_VLAN_MTU;
-
-#ifdef BNX_CSUM
- ifp->if_capabilities |= IFCAP_CSUM_TCPv4 | IFCAP_CSUM_UDPv4;
-#endif
+ ifp->if_capabilities = IFCAP_VLAN_MTU | IFCAP_CSUM_TCPv4 |
+ IFCAP_CSUM_UDPv4;
#if NVLAN > 0
ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING;
--
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