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From: Andrew Gallatin <gallatin@FreeBSD.org>
Date: Mon, 22 Feb 2010 16:57:03 +0000 (UTC)
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Subject: svn commit: r204212 - head/sys/dev/mxge
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Author: gallatin
Date: Mon Feb 22 16:57:03 2010
New Revision: 204212
URL: http://svn.freebsd.org/changeset/base/204212

Log:
  Update mxge to support IFCAP_VLAN_HWTSO.
  
  Note: If/when FreeBSD supports TSO over IPv6, the minimal mxge fw
  rev to enable IFCAP_VLAN_HWTSO will need to be increased to 1.4.37

Modified:
  head/sys/dev/mxge/if_mxge.c

Modified: head/sys/dev/mxge/if_mxge.c
==============================================================================
--- head/sys/dev/mxge/if_mxge.c	Mon Feb 22 16:49:45 2010	(r204211)
+++ head/sys/dev/mxge/if_mxge.c	Mon Feb 22 16:57:03 2010	(r204212)
@@ -4122,6 +4122,13 @@ mxge_ioctl(struct ifnet *ifp, u_long com
 		}
 		if (mask & IFCAP_VLAN_HWTAGGING)
 			ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
+		if (mask & IFCAP_VLAN_HWTSO)
+			ifp->if_capenable ^= IFCAP_VLAN_HWTSO;
+
+		if (!(ifp->if_capabilities & IFCAP_VLAN_HWTSO) ||
+		    !(ifp->if_capenable & IFCAP_VLAN_HWTAGGING))
+			ifp->if_capenable &= ~IFCAP_VLAN_HWTSO;
+
 		mtx_unlock(&sc->driver_mtx);
 		VLAN_CAPABILITIES(ifp);
 
@@ -4734,6 +4741,11 @@ mxge_attach(device_t dev)
 
 #ifdef MXGE_NEW_VLAN_API
 	ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_HWCSUM;
+
+	/* Only FW 1.4.32 and newer can do TSO over vlans */
+	if (sc->fw_ver_major == 1 && sc->fw_ver_minor == 4 &&
+	    sc->fw_ver_tiny >= 32)
+		ifp->if_capabilities |= IFCAP_VLAN_HWTSO;
 #endif
 
 	sc->max_mtu = mxge_max_mtu(sc);