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From: Pyun YongHyeon <yongari@FreeBSD.org>
Date: Thu, 13 Nov 2008 04:11:01 +0000 (UTC)
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Subject: svn commit: r184908 - head/sys/dev/vge
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Author: yongari
Date: Thu Nov 13 04:11:01 2008
New Revision: 184908
URL: http://svn.freebsd.org/changeset/base/184908

Log:
  Fix Rx/Tx checksum offload ioctl handling. Now checksum offload
  can be controlled by ifconfig(8). Note, VLAN hardware tagging
  controls still lacks required handler but it requires more driver
  cleanups so I didn't touch that part.
  
  PR:	kern/128766

Modified:
  head/sys/dev/vge/if_vge.c

Modified: head/sys/dev/vge/if_vge.c
==============================================================================
--- head/sys/dev/vge/if_vge.c	Thu Nov 13 02:35:29 2008	(r184907)
+++ head/sys/dev/vge/if_vge.c	Thu Nov 13 04:11:01 2008	(r184908)
@@ -2226,15 +2226,17 @@ vge_ioctl(ifp, command, data)
 			}
 		}
 #endif /* DEVICE_POLLING */
-		if (mask & IFCAP_HWCSUM) {
-			ifp->if_capenable |= ifr->ifr_reqcap & (IFCAP_HWCSUM);
-			if (ifp->if_capenable & IFCAP_TXCSUM)
-				ifp->if_hwassist = VGE_CSUM_FEATURES;
+		if ((mask & IFCAP_TXCSUM) != 0 &&
+		    (ifp->if_capabilities & IFCAP_TXCSUM) != 0) {
+			ifp->if_capenable ^= IFCAP_TXCSUM;
+			if ((ifp->if_capenable & IFCAP_TXCSUM) != 0)
+				ifp->if_hwassist |= VGE_CSUM_FEATURES;
 			else
-				ifp->if_hwassist = 0;
-			if (ifp->if_drv_flags & IFF_DRV_RUNNING)
-				vge_init(sc);
+				ifp->if_hwassist &= ~VGE_CSUM_FEATURES;
 		}
+		if ((mask & IFCAP_RXCSUM) != 0 &&
+		    (ifp->if_capabilities & IFCAP_RXCSUM) != 0)
+			ifp->if_capenable ^= IFCAP_RXCSUM;
 	    }
 		break;
 	default: