svn commit: r205537 - stable/8/sys/dev/msk

[Pyun YongHyeon]

Author: yongari
Date: Tue Mar 23 21:38:25 2010
New Revision: 205537
URL: http://svn.freebsd.org/changeset/base/205537

Log:
  MFC r204361-204362:
  r204361:
    Reuse the configured LE for VLAN if new LE was created for TSO.
    Only old controllers need to create new LE for TSO. This change
    makes TSO work over VLANs.
  
  r204362:
    Add TSO support on VLANs. Controller requires VLAN hardware tagging
    to make TSO work over VLANs.

Modified:
  stable/8/sys/dev/msk/if_msk.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)
  stable/8/sys/dev/xen/xenpci/   (props changed)
  stable/8/sys/net/   (props changed)

Modified: stable/8/sys/dev/msk/if_msk.c
==============================================================================
--- stable/8/sys/dev/msk/if_msk.c	Tue Mar 23 21:08:07 2010	(r205536)
+++ stable/8/sys/dev/msk/if_msk.c	Tue Mar 23 21:38:25 2010	(r205537)
@@ -1006,11 +1006,6 @@ msk_ioctl(struct ifnet *ifp, u_long comm
 		if ((mask & IFCAP_RXCSUM) != 0 &&
 		    (IFCAP_RXCSUM & ifp->if_capabilities) != 0)
 			ifp->if_capenable ^= IFCAP_RXCSUM;
-		if ((mask & IFCAP_VLAN_HWTAGGING) != 0 &&
-		    (IFCAP_VLAN_HWTAGGING & ifp->if_capabilities) != 0) {
-			ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
-			msk_setvlan(sc_if, ifp);
-		}
 		if ((mask & IFCAP_VLAN_HWCSUM) != 0 &&
 		    (IFCAP_VLAN_HWCSUM & ifp->if_capabilities) != 0)
 			ifp->if_capenable ^= IFCAP_VLAN_HWCSUM;
@@ -1022,6 +1017,16 @@ msk_ioctl(struct ifnet *ifp, u_long comm
 			else
 				ifp->if_hwassist &= ~CSUM_TSO;
 		}
+		if ((mask & IFCAP_VLAN_HWTSO) != 0 &&
+		    (IFCAP_VLAN_HWTSO & ifp->if_capabilities) != 0)
+			ifp->if_capenable ^= IFCAP_VLAN_HWTSO;
+		if ((mask & IFCAP_VLAN_HWTAGGING) != 0 &&
+		    (IFCAP_VLAN_HWTAGGING & ifp->if_capabilities) != 0) {
+			ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
+			if ((IFCAP_VLAN_HWTAGGING & ifp->if_capenable) == 0)
+				ifp->if_capenable &= ~IFCAP_VLAN_HWTSO;
+			msk_setvlan(sc_if, ifp);
+		}
 		if (ifp->if_mtu > ETHERMTU &&
 		    (sc_if->msk_flags & MSK_FLAG_JUMBO_NOCSUM) != 0) {
 			ifp->if_hwassist &= ~(MSK_CSUM_FEATURES | CSUM_TSO);
@@ -1561,7 +1566,7 @@ msk_attach(device_t dev)
 		 * this workaround does not work so disable checksum offload
 		 * for VLAN interface.
 		 */
-        	ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING;
+        	ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_HWTSO;
 		/*
 		 * Enable Rx checksum offloading for VLAN taggedd frames
 		 * if controller support new descriptor format.
@@ -2688,7 +2693,7 @@ msk_encap(struct msk_if_softc *sc_if, st
 	}
 	/* Check if we have a VLAN tag to insert. */
 	if ((m->m_flags & M_VLANTAG) != 0) {
-		if (tso == 0) {
+		if (tx_le == NULL) {
 			tx_le = &sc_if->msk_rdata.msk_tx_ring[prod];
 			tx_le->msk_addr = htole32(0);
 			tx_le->msk_control = htole32(OP_VLAN | HW_OWNER |