Author: sephe Date: Fri Sep 2 03:19:55 2016 New Revision: 305270 URL: https://svnweb.freebsd.org/changeset/base/305270
Log: hyperv/hn: Simplify RX hash related bits. MFC after: 1 week Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D7736 Modified: head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c head/sys/dev/hyperv/netvsc/hv_rndis_filter.c head/sys/dev/hyperv/netvsc/if_hnreg.h head/sys/dev/hyperv/netvsc/if_hnvar.h Modified: head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c ============================================================================== --- head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c Fri Sep 2 03:15:54 2016 (r305269) +++ head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c Fri Sep 2 03:19:55 2016 (r305270) @@ -1289,7 +1289,7 @@ netvsc_recv(struct hn_rx_ring *rxr, cons struct ifnet *ifp = rxr->hn_ifp; struct mbuf *m_new; int size, do_lro = 0, do_csum = 1; - int hash_type = M_HASHTYPE_OPAQUE_HASH; + int hash_type; if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) return (0); @@ -1421,13 +1421,13 @@ skip: m_new->m_flags |= M_VLANTAG; } - if (info->hash_info != NULL && info->hash_value != NULL) { + if (info->hash_info != HN_NDIS_HASH_INFO_INVALID) { rxr->hn_rss_pkts++; - m_new->m_pkthdr.flowid = info->hash_value->hash_value; - if ((info->hash_info->hash_info & NDIS_HASH_FUNCTION_MASK) == + m_new->m_pkthdr.flowid = info->hash_value; + hash_type = M_HASHTYPE_OPAQUE_HASH; + if ((info->hash_info & NDIS_HASH_FUNCTION_MASK) == NDIS_HASH_FUNCTION_TOEPLITZ) { - uint32_t type = - (info->hash_info->hash_info & NDIS_HASH_TYPE_MASK); + uint32_t type = (info->hash_info & NDIS_HASH_TYPE_MASK); switch (type) { case NDIS_HASH_IPV4: @@ -1456,12 +1456,8 @@ skip: } } } else { - if (info->hash_value != NULL) { - m_new->m_pkthdr.flowid = info->hash_value->hash_value; - } else { - m_new->m_pkthdr.flowid = rxr->hn_rx_idx; - hash_type = M_HASHTYPE_OPAQUE; - } + m_new->m_pkthdr.flowid = rxr->hn_rx_idx; + hash_type = M_HASHTYPE_OPAQUE; } M_HASHTYPE_SET(m_new, hash_type); Modified: head/sys/dev/hyperv/netvsc/hv_rndis_filter.c ============================================================================== --- head/sys/dev/hyperv/netvsc/hv_rndis_filter.c Fri Sep 2 03:15:54 2016 (r305269) +++ head/sys/dev/hyperv/netvsc/hv_rndis_filter.c Fri Sep 2 03:19:55 2016 (r305270) @@ -158,8 +158,7 @@ hv_rf_find_recvinfo(const rndis_packet * info->vlan_info = HN_NDIS_VLAN_INFO_INVALID; info->csum_info = HN_NDIS_RXCSUM_INFO_INVALID; - info->hash_info = NULL; - info->hash_value = NULL; + info->hash_info = HN_NDIS_HASH_INFO_INVALID; if (rpkt->per_pkt_info_offset == 0) return (0); @@ -207,18 +206,16 @@ hv_rf_find_recvinfo(const rndis_packet * break; case nbl_hash_value: - if (__predict_false(dlen < - sizeof(struct rndis_hash_value))) + if (__predict_false(dlen < HN_NDIS_HASH_VALUE_SIZE)) return (EINVAL); - info->hash_value = data; + info->hash_value = *((const uint32_t *)data); mask |= HV_RF_RECVINFO_HASHVAL; break; case nbl_hash_info: - if (__predict_false(dlen < - sizeof(struct rndis_hash_info))) + if (__predict_false(dlen < HN_NDIS_HASH_INFO_SIZE)) return (EINVAL); - info->hash_info = data; + info->hash_info = *((const uint32_t *)data); mask |= HV_RF_RECVINFO_HASHINF; break; @@ -234,6 +231,13 @@ next: pi = (const struct rndis_pktinfo *) ((const uint8_t *)pi + pi->rm_size); } + + /* + * Final fixup. + * - If there is no hash value, invalidate the hash info. + */ + if ((mask & HV_RF_RECVINFO_HASHVAL) == 0) + info->hash_info = HN_NDIS_HASH_INFO_INVALID; return (0); } Modified: head/sys/dev/hyperv/netvsc/if_hnreg.h ============================================================================== --- head/sys/dev/hyperv/netvsc/if_hnreg.h Fri Sep 2 03:15:54 2016 (r305269) +++ head/sys/dev/hyperv/netvsc/if_hnreg.h Fri Sep 2 03:19:55 2016 (r305270) @@ -208,4 +208,17 @@ struct hn_nvs_rndis_ack { } __packed; CTASSERT(sizeof(struct hn_nvs_rndis_ack) >= HN_NVS_REQSIZE_MIN); +/* + * RNDIS extension + */ + +/* Per-packet hash info */ +#define HN_NDIS_HASH_INFO_SIZE sizeof(uint32_t) +#define HN_NDIS_PKTINFO_TYPE_HASHINF NDIS_PKTINFO_TYPE_ORIG_NBLIST +/* NDIS_HASH_ */ + +/* Per-packet hash value */ +#define HN_NDIS_HASH_VALUE_SIZE sizeof(uint32_t) +#define HN_NDIS_PKTINFO_TYPE_HASHVAL NDIS_PKTINFO_TYPE_PKT_CANCELID + #endif /* !_IF_HNREG_H_ */ Modified: head/sys/dev/hyperv/netvsc/if_hnvar.h ============================================================================== --- head/sys/dev/hyperv/netvsc/if_hnvar.h Fri Sep 2 03:15:54 2016 (r305269) +++ head/sys/dev/hyperv/netvsc/if_hnvar.h Fri Sep 2 03:19:55 2016 (r305270) @@ -57,12 +57,13 @@ struct rndis_tcp_ip_csum_info_; #define HN_NDIS_VLAN_INFO_INVALID 0xffffffff #define HN_NDIS_RXCSUM_INFO_INVALID 0 +#define HN_NDIS_HASH_INFO_INVALID 0 struct hn_recvinfo { uint32_t vlan_info; uint32_t csum_info; - const struct rndis_hash_info *hash_info; - const struct rndis_hash_value *hash_value; + uint32_t hash_info; + uint32_t hash_value; }; #define HN_SEND_CTX_INITIALIZER(cb, cbarg) \ _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
