Author: arybchik Date: Sat May 16 05:36:40 2015 New Revision: 282996 URL: https://svnweb.freebsd.org/changeset/base/282996
Log: sfxge: support Rx checksum offloads disabling We can't disable it in HW, but we can ignore result. Discard Rx descriptor checksum flags if Rx checksum offload is off. Reviewed by: gnn Sponsored by: Solarflare Communications, Inc. MFC after: 2 days Differential Revision: https://reviews.freebsd.org/D2544 Modified: head/sys/dev/sfxge/sfxge.c head/sys/dev/sfxge/sfxge_rx.c Modified: head/sys/dev/sfxge/sfxge.c ============================================================================== --- head/sys/dev/sfxge/sfxge.c Sat May 16 01:13:37 2015 (r282995) +++ head/sys/dev/sfxge/sfxge.c Sat May 16 05:36:40 2015 (r282996) @@ -65,8 +65,7 @@ __FBSDID("$FreeBSD$"); IFCAP_JUMBO_MTU | IFCAP_LRO | \ IFCAP_VLAN_HWTSO | IFCAP_LINKSTATE | IFCAP_HWSTATS) #define SFXGE_CAP_ENABLE SFXGE_CAP -#define SFXGE_CAP_FIXED (IFCAP_VLAN_MTU | IFCAP_RXCSUM | IFCAP_VLAN_HWCSUM | \ - IFCAP_RXCSUM_IPV6 | \ +#define SFXGE_CAP_FIXED (IFCAP_VLAN_MTU | IFCAP_VLAN_HWCSUM | \ IFCAP_JUMBO_MTU | IFCAP_LINKSTATE | IFCAP_HWSTATS) MALLOC_DEFINE(M_SFXGE, "sfxge", "Solarflare 10GigE driver"); Modified: head/sys/dev/sfxge/sfxge_rx.c ============================================================================== --- head/sys/dev/sfxge/sfxge_rx.c Sat May 16 01:13:37 2015 (r282995) +++ head/sys/dev/sfxge/sfxge_rx.c Sat May 16 05:36:40 2015 (r282996) @@ -795,7 +795,8 @@ void sfxge_rx_qcomplete(struct sfxge_rxq *rxq, boolean_t eop) { struct sfxge_softc *sc = rxq->sc; - int lro_enabled = sc->ifnet->if_capenable & IFCAP_LRO; + int if_capenable = sc->ifnet->if_capenable; + int lro_enabled = if_capenable & IFCAP_LRO; unsigned int index; struct sfxge_evq *evq; unsigned int completed; @@ -825,21 +826,37 @@ sfxge_rx_qcomplete(struct sfxge_rxq *rxq prefetch_read_many(mtod(m, caddr_t)); - /* Check for loopback packets */ - if (!(rx_desc->flags & EFX_PKT_IPV4) && - !(rx_desc->flags & EFX_PKT_IPV6)) { - struct ether_header *etherhp; - - /*LINTED*/ - etherhp = mtod(m, struct ether_header *); - - if (etherhp->ether_type == - htons(SFXGE_ETHERTYPE_LOOPBACK)) { - EFSYS_PROBE(loopback); - - rxq->loopback++; - goto discard; + switch (rx_desc->flags & (EFX_PKT_IPV4 | EFX_PKT_IPV6)) { + case EFX_PKT_IPV4: + if (~if_capenable & IFCAP_RXCSUM) + rx_desc->flags &= + ~(EFX_CKSUM_IPV4 | EFX_CKSUM_TCPUDP); + break; + case EFX_PKT_IPV6: + if (~if_capenable & IFCAP_RXCSUM_IPV6) + rx_desc->flags &= ~EFX_CKSUM_TCPUDP; + break; + case 0: + /* Check for loopback packets */ + { + struct ether_header *etherhp; + + /*LINTED*/ + etherhp = mtod(m, struct ether_header *); + + if (etherhp->ether_type == + htons(SFXGE_ETHERTYPE_LOOPBACK)) { + EFSYS_PROBE(loopback); + + rxq->loopback++; + goto discard; + } } + break; + default: + KASSERT(B_FALSE, + ("Rx descriptor with both IPv4 and IPv6 flags")); + goto discard; } /* Pass packet up the stack or into LRO (pipelined) */ _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
