Date: Thu, 18 Mar 2010 19:04:04 +0000 (UTC) From: Pyun YongHyeon <yongari@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r205294 - stable/8/sys/net Message-ID: <201003181904.o2IJ44Jl010447@svn.freebsd.org>
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Author: yongari Date: Thu Mar 18 19:04:04 2010 New Revision: 205294 URL: http://svn.freebsd.org/changeset/base/205294 Log: MFC r204149: Add TSO support on VLANs. Intentionally separated IFCAP_VLAN_HWTSO from IFCAP_VLAN_HWTAGGING. I think some hardwares may be able to TSO over VLAN without VLAN hardware tagging. Driver changes and userland support will follow. Modified: stable/8/sys/net/if.h stable/8/sys/net/if_vlan.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) Modified: stable/8/sys/net/if.h ============================================================================== --- stable/8/sys/net/if.h Thu Mar 18 19:00:37 2010 (r205293) +++ stable/8/sys/net/if.h Thu Mar 18 19:04:04 2010 (r205294) @@ -218,6 +218,7 @@ struct if_data { #define IFCAP_TOE6 0x08000 /* interface can offload TCP6 */ #define IFCAP_VLAN_HWFILTER 0x10000 /* interface hw can filter vlan tag */ #define IFCAP_POLLING_NOCOUNT 0x20000 /* polling ticks cannot be fragmented */ +#define IFCAP_VLAN_HWTSO 0x40000 /* can do IFCAP_TSO on VLANs */ #define IFCAP_HWCSUM (IFCAP_RXCSUM | IFCAP_TXCSUM) #define IFCAP_TSO (IFCAP_TSO4 | IFCAP_TSO6) Modified: stable/8/sys/net/if_vlan.c ============================================================================== --- stable/8/sys/net/if_vlan.c Thu Mar 18 19:00:37 2010 (r205293) +++ stable/8/sys/net/if_vlan.c Thu Mar 18 19:04:04 2010 (r205294) @@ -1275,11 +1275,26 @@ vlan_capabilities(struct ifvlan *ifv) if (p->if_capenable & IFCAP_VLAN_HWCSUM && p->if_capenable & IFCAP_VLAN_HWTAGGING) { ifp->if_capenable = p->if_capenable & IFCAP_HWCSUM; - ifp->if_hwassist = p->if_hwassist; + ifp->if_hwassist = p->if_hwassist & (CSUM_IP | CSUM_TCP | + CSUM_UDP | CSUM_SCTP | CSUM_IP_FRAGS | CSUM_FRAGMENT); } else { ifp->if_capenable = 0; ifp->if_hwassist = 0; } + /* + * If the parent interface can do TSO on VLANs then + * propagate the hardware-assisted flag. TSO on VLANs + * does not necessarily require hardware VLAN tagging. + */ + if (p->if_capabilities & IFCAP_VLAN_HWTSO) + ifp->if_capabilities |= p->if_capabilities & IFCAP_TSO; + if (p->if_capenable & IFCAP_VLAN_HWTSO) { + ifp->if_capenable |= p->if_capenable & IFCAP_TSO; + ifp->if_hwassist |= p->if_hwassist & CSUM_TSO; + } else { + ifp->if_capenable &= ~(p->if_capenable & IFCAP_TSO); + ifp->if_hwassist &= ~(p->if_hwassist & CSUM_TSO); + } } static void
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