Index: head/sys/dev/hyperv/netvsc/hv_net_vsc.h =================================================================== --- head/sys/dev/hyperv/netvsc/hv_net_vsc.h (revision 306936) +++ head/sys/dev/hyperv/netvsc/hv_net_vsc.h (revision 306937) @@ -1,277 +1,279 @@ /*- * Copyright (c) 2009-2012,2016 Microsoft Corp. * Copyright (c) 2010-2012 Citrix Inc. * Copyright (c) 2012 NetApp Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice unmodified, this list of conditions, and the following * disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD$ */ /* * HyperV vmbus (virtual machine bus) network VSC (virtual services client) * header file * * (Updated from unencumbered NvspProtocol.h) */ #ifndef __HV_NET_VSC_H__ #define __HV_NET_VSC_H__ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define HN_USE_TXDESC_BUFRING MALLOC_DECLARE(M_NETVSC); /* * The following arguably belongs in a separate header file */ /* * Defines */ #define NETVSC_SEND_BUFFER_SIZE (1024*1024*15) /* 15M */ #define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024*1024*15) /* 15MB */ #define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024*16) /* 16MB */ /* * Maximum MTU we permit to be configured for a netvsc interface. * When the code was developed, a max MTU of 12232 was tested and * proven to work. 9K is a reasonable maximum for an Ethernet. */ #define NETVSC_MAX_CONFIGURABLE_MTU (9 * 1024) #define NETVSC_PACKET_SIZE PAGE_SIZE /* * Data types */ struct vmbus_channel; #define NETVSC_DEVICE_RING_BUFFER_SIZE (128 * PAGE_SIZE) #define NETVSC_PACKET_MAXPAGE 32 #define HN_XACT_REQ_PGCNT 2 #define HN_XACT_RESP_PGCNT 2 #define HN_XACT_REQ_SIZE (HN_XACT_REQ_PGCNT * PAGE_SIZE) #define HN_XACT_RESP_SIZE (HN_XACT_RESP_PGCNT * PAGE_SIZE) #ifndef HN_USE_TXDESC_BUFRING struct hn_txdesc; SLIST_HEAD(hn_txdesc_list, hn_txdesc); #else struct buf_ring; #endif struct hn_tx_ring; struct hn_rx_ring { struct ifnet *hn_ifp; struct hn_tx_ring *hn_txr; void *hn_rdbuf; uint8_t *hn_rxbuf; /* shadow sc->hn_rxbuf */ int hn_rx_idx; /* Trust csum verification on host side */ int hn_trust_hcsum; /* HN_TRUST_HCSUM_ */ struct lro_ctrl hn_lro; u_long hn_csum_ip; u_long hn_csum_tcp; u_long hn_csum_udp; u_long hn_csum_trusted; u_long hn_lro_tried; u_long hn_small_pkts; u_long hn_pkts; u_long hn_rss_pkts; /* Rarely used stuffs */ struct sysctl_oid *hn_rx_sysctl_tree; int hn_rx_flags; void *hn_br; /* TX/RX bufring */ struct hyperv_dma hn_br_dma; } __aligned(CACHE_LINE_SIZE); #define HN_TRUST_HCSUM_IP 0x0001 #define HN_TRUST_HCSUM_TCP 0x0002 #define HN_TRUST_HCSUM_UDP 0x0004 #define HN_RX_FLAG_ATTACHED 0x1 struct hn_tx_ring { #ifndef HN_USE_TXDESC_BUFRING struct mtx hn_txlist_spin; struct hn_txdesc_list hn_txlist; #else struct buf_ring *hn_txdesc_br; #endif int hn_txdesc_cnt; int hn_txdesc_avail; u_short hn_has_txeof; u_short hn_txdone_cnt; int hn_sched_tx; void (*hn_txeof)(struct hn_tx_ring *); struct taskqueue *hn_tx_taskq; struct task hn_tx_task; struct task hn_txeof_task; struct buf_ring *hn_mbuf_br; int hn_oactive; int hn_tx_idx; int hn_tx_flags; struct mtx hn_tx_lock; struct hn_softc *hn_sc; struct vmbus_channel *hn_chan; int hn_direct_tx_size; int hn_chim_size; bus_dma_tag_t hn_tx_data_dtag; uint64_t hn_csum_assist; int hn_suspended; int hn_gpa_cnt; struct vmbus_gpa hn_gpa[NETVSC_PACKET_MAXPAGE]; u_long hn_no_txdescs; u_long hn_send_failed; u_long hn_txdma_failed; u_long hn_tx_collapsed; u_long hn_tx_chimney_tried; u_long hn_tx_chimney; u_long hn_pkts; /* Rarely used stuffs */ struct hn_txdesc *hn_txdesc; bus_dma_tag_t hn_tx_rndis_dtag; struct sysctl_oid *hn_tx_sysctl_tree; } __aligned(CACHE_LINE_SIZE); #define HN_TX_FLAG_ATTACHED 0x1 #define HN_TX_FLAG_HASHVAL 0x2 /* support HASHVAL pktinfo */ /* * Device-specific softc structure */ struct hn_softc { struct ifnet *hn_ifp; struct ifmedia hn_media; device_t hn_dev; int hn_carrier; int hn_if_flags; struct sx hn_lock; struct vmbus_channel *hn_prichan; int hn_rx_ring_cnt; int hn_rx_ring_inuse; struct hn_rx_ring *hn_rx_ring; int hn_tx_ring_cnt; int hn_tx_ring_inuse; struct hn_tx_ring *hn_tx_ring; uint8_t *hn_chim; u_long *hn_chim_bmap; int hn_chim_bmap_cnt; int hn_chim_cnt; int hn_chim_szmax; int hn_cpu; struct taskqueue *hn_tx_taskq; struct sysctl_oid *hn_tx_sysctl_tree; struct sysctl_oid *hn_rx_sysctl_tree; struct vmbus_xact_ctx *hn_xact; uint32_t hn_nvs_ver; uint32_t hn_caps; /* HN_CAP_ */ uint32_t hn_flags; /* HN_FLAG_ */ void *hn_rxbuf; uint32_t hn_rxbuf_gpadl; struct hyperv_dma hn_rxbuf_dma; uint32_t hn_chim_gpadl; struct hyperv_dma hn_chim_dma; uint32_t hn_rndis_rid; uint32_t hn_ndis_ver; + int hn_ndis_tso_szmax; + int hn_ndis_tso_sgmin; struct ndis_rssprm_toeplitz hn_rss; }; #define HN_FLAG_RXBUF_CONNECTED 0x0001 #define HN_FLAG_CHIM_CONNECTED 0x0002 #define HN_FLAG_HAS_RSSKEY 0x0004 #define HN_FLAG_HAS_RSSIND 0x0008 #define HN_FLAG_SYNTH_ATTACHED 0x0010 #define HN_CAP_VLAN 0x0001 #define HN_CAP_MTU 0x0002 #define HN_CAP_IPCS 0x0004 #define HN_CAP_TCP4CS 0x0008 #define HN_CAP_TCP6CS 0x0010 #define HN_CAP_UDP4CS 0x0020 #define HN_CAP_UDP6CS 0x0040 #define HN_CAP_TSO4 0x0080 #define HN_CAP_TSO6 0x0100 /* * Externs */ struct hn_send_ctx; void netvsc_linkstatus_callback(struct hn_softc *sc, uint32_t status); int hv_nv_on_send(struct vmbus_channel *chan, uint32_t rndis_mtype, struct hn_send_ctx *sndc, struct vmbus_gpa *gpa, int gpa_cnt); #endif /* __HV_NET_VSC_H__ */ Index: head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c =================================================================== --- head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c (revision 306936) +++ head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c (revision 306937) @@ -1,3933 +1,3960 @@ /*- * Copyright (c) 2010-2012 Citrix Inc. * Copyright (c) 2009-2012,2016 Microsoft Corp. * Copyright (c) 2012 NetApp Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice unmodified, this list of conditions, and the following * disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /*- * Copyright (c) 2004-2006 Kip Macy * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include "opt_inet6.h" #include "opt_inet.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "vmbus_if.h" /* Short for Hyper-V network interface */ #define NETVSC_DEVNAME "hn" /* * It looks like offset 0 of buf is reserved to hold the softc pointer. * The sc pointer evidently not needed, and is not presently populated. * The packet offset is where the netvsc_packet starts in the buffer. */ #define HV_NV_SC_PTR_OFFSET_IN_BUF 0 #define HV_NV_PACKET_OFFSET_IN_BUF 16 /* YYY should get it from the underlying channel */ #define HN_TX_DESC_CNT 512 #define HN_LROENT_CNT_DEF 128 #define HN_RING_CNT_DEF_MAX 8 #define HN_RNDIS_PKT_LEN \ (sizeof(struct rndis_packet_msg) + \ HN_RNDIS_PKTINFO_SIZE(HN_NDIS_HASH_VALUE_SIZE) + \ HN_RNDIS_PKTINFO_SIZE(NDIS_VLAN_INFO_SIZE) + \ HN_RNDIS_PKTINFO_SIZE(NDIS_LSO2_INFO_SIZE) + \ HN_RNDIS_PKTINFO_SIZE(NDIS_TXCSUM_INFO_SIZE)) #define HN_RNDIS_PKT_BOUNDARY PAGE_SIZE #define HN_RNDIS_PKT_ALIGN CACHE_LINE_SIZE #define HN_TX_DATA_BOUNDARY PAGE_SIZE #define HN_TX_DATA_MAXSIZE IP_MAXPACKET #define HN_TX_DATA_SEGSIZE PAGE_SIZE /* -1 for RNDIS packet message */ #define HN_TX_DATA_SEGCNT_MAX (NETVSC_PACKET_MAXPAGE - 1) #define HN_DIRECT_TX_SIZE_DEF 128 #define HN_EARLY_TXEOF_THRESH 8 struct hn_txdesc { #ifndef HN_USE_TXDESC_BUFRING SLIST_ENTRY(hn_txdesc) link; #endif struct mbuf *m; struct hn_tx_ring *txr; int refs; uint32_t flags; /* HN_TXD_FLAG_ */ struct hn_send_ctx send_ctx; bus_dmamap_t data_dmap; bus_addr_t rndis_pkt_paddr; struct rndis_packet_msg *rndis_pkt; bus_dmamap_t rndis_pkt_dmap; }; #define HN_TXD_FLAG_ONLIST 0x1 #define HN_TXD_FLAG_DMAMAP 0x2 #define HN_LRO_LENLIM_MULTIRX_DEF (12 * ETHERMTU) #define HN_LRO_LENLIM_DEF (25 * ETHERMTU) /* YYY 2*MTU is a bit rough, but should be good enough. */ #define HN_LRO_LENLIM_MIN(ifp) (2 * (ifp)->if_mtu) #define HN_LRO_ACKCNT_DEF 1 #define HN_LOCK_INIT(sc) \ sx_init(&(sc)->hn_lock, device_get_nameunit((sc)->hn_dev)) #define HN_LOCK_ASSERT(sc) sx_assert(&(sc)->hn_lock, SA_XLOCKED) #define HN_LOCK_DESTROY(sc) sx_destroy(&(sc)->hn_lock) #define HN_LOCK(sc) sx_xlock(&(sc)->hn_lock) #define HN_UNLOCK(sc) sx_xunlock(&(sc)->hn_lock) #define HN_CSUM_IP_MASK (CSUM_IP | CSUM_IP_TCP | CSUM_IP_UDP) #define HN_CSUM_IP6_MASK (CSUM_IP6_TCP | CSUM_IP6_UDP) #define HN_CSUM_IP_HWASSIST(sc) \ ((sc)->hn_tx_ring[0].hn_csum_assist & HN_CSUM_IP_MASK) #define HN_CSUM_IP6_HWASSIST(sc) \ ((sc)->hn_tx_ring[0].hn_csum_assist & HN_CSUM_IP6_MASK) /* * Globals */ SYSCTL_NODE(_hw, OID_AUTO, hn, CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "Hyper-V network interface"); /* Trust tcp segements verification on host side. */ static int hn_trust_hosttcp = 1; SYSCTL_INT(_hw_hn, OID_AUTO, trust_hosttcp, CTLFLAG_RDTUN, &hn_trust_hosttcp, 0, "Trust tcp segement verification on host side, " "when csum info is missing (global setting)"); /* Trust udp datagrams verification on host side. */ static int hn_trust_hostudp = 1; SYSCTL_INT(_hw_hn, OID_AUTO, trust_hostudp, CTLFLAG_RDTUN, &hn_trust_hostudp, 0, "Trust udp datagram verification on host side, " "when csum info is missing (global setting)"); /* Trust ip packets verification on host side. */ static int hn_trust_hostip = 1; SYSCTL_INT(_hw_hn, OID_AUTO, trust_hostip, CTLFLAG_RDTUN, &hn_trust_hostip, 0, "Trust ip packet verification on host side, " "when csum info is missing (global setting)"); /* Limit TSO burst size */ -static int hn_tso_maxlen = 0; +static int hn_tso_maxlen = IP_MAXPACKET; SYSCTL_INT(_hw_hn, OID_AUTO, tso_maxlen, CTLFLAG_RDTUN, &hn_tso_maxlen, 0, "TSO burst limit"); /* Limit chimney send size */ static int hn_tx_chimney_size = 0; SYSCTL_INT(_hw_hn, OID_AUTO, tx_chimney_size, CTLFLAG_RDTUN, &hn_tx_chimney_size, 0, "Chimney send packet size limit"); /* Limit the size of packet for direct transmission */ static int hn_direct_tx_size = HN_DIRECT_TX_SIZE_DEF; SYSCTL_INT(_hw_hn, OID_AUTO, direct_tx_size, CTLFLAG_RDTUN, &hn_direct_tx_size, 0, "Size of the packet for direct transmission"); #if defined(INET) || defined(INET6) #if __FreeBSD_version >= 1100095 static int hn_lro_entry_count = HN_LROENT_CNT_DEF; SYSCTL_INT(_hw_hn, OID_AUTO, lro_entry_count, CTLFLAG_RDTUN, &hn_lro_entry_count, 0, "LRO entry count"); #endif #endif static int hn_share_tx_taskq = 0; SYSCTL_INT(_hw_hn, OID_AUTO, share_tx_taskq, CTLFLAG_RDTUN, &hn_share_tx_taskq, 0, "Enable shared TX taskqueue"); static struct taskqueue *hn_tx_taskq; #ifndef HN_USE_TXDESC_BUFRING static int hn_use_txdesc_bufring = 0; #else static int hn_use_txdesc_bufring = 1; #endif SYSCTL_INT(_hw_hn, OID_AUTO, use_txdesc_bufring, CTLFLAG_RD, &hn_use_txdesc_bufring, 0, "Use buf_ring for TX descriptors"); static int hn_bind_tx_taskq = -1; SYSCTL_INT(_hw_hn, OID_AUTO, bind_tx_taskq, CTLFLAG_RDTUN, &hn_bind_tx_taskq, 0, "Bind TX taskqueue to the specified cpu"); static int hn_use_if_start = 0; SYSCTL_INT(_hw_hn, OID_AUTO, use_if_start, CTLFLAG_RDTUN, &hn_use_if_start, 0, "Use if_start TX method"); static int hn_chan_cnt = 0; SYSCTL_INT(_hw_hn, OID_AUTO, chan_cnt, CTLFLAG_RDTUN, &hn_chan_cnt, 0, "# of channels to use; each channel has one RX ring and one TX ring"); static int hn_tx_ring_cnt = 0; SYSCTL_INT(_hw_hn, OID_AUTO, tx_ring_cnt, CTLFLAG_RDTUN, &hn_tx_ring_cnt, 0, "# of TX rings to use"); static int hn_tx_swq_depth = 0; SYSCTL_INT(_hw_hn, OID_AUTO, tx_swq_depth, CTLFLAG_RDTUN, &hn_tx_swq_depth, 0, "Depth of IFQ or BUFRING"); #if __FreeBSD_version >= 1100095 static u_int hn_lro_mbufq_depth = 0; SYSCTL_UINT(_hw_hn, OID_AUTO, lro_mbufq_depth, CTLFLAG_RDTUN, &hn_lro_mbufq_depth, 0, "Depth of LRO mbuf queue"); #endif static u_int hn_cpu_index; /* * Forward declarations */ static void hn_stop(struct hn_softc *sc); static void hn_init_locked(struct hn_softc *sc); static void hn_init(void *xsc); static int hn_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data); static int hn_start_locked(struct hn_tx_ring *txr, int len); static void hn_start(struct ifnet *ifp); static void hn_start_txeof(struct hn_tx_ring *); static int hn_ifmedia_upd(struct ifnet *ifp); static void hn_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr); #if __FreeBSD_version >= 1100099 static int hn_lro_lenlim_sysctl(SYSCTL_HANDLER_ARGS); static int hn_lro_ackcnt_sysctl(SYSCTL_HANDLER_ARGS); #endif static int hn_trust_hcsum_sysctl(SYSCTL_HANDLER_ARGS); static int hn_chim_size_sysctl(SYSCTL_HANDLER_ARGS); #if __FreeBSD_version < 1100095 static int hn_rx_stat_int_sysctl(SYSCTL_HANDLER_ARGS); #else static int hn_rx_stat_u64_sysctl(SYSCTL_HANDLER_ARGS); #endif static int hn_rx_stat_ulong_sysctl(SYSCTL_HANDLER_ARGS); static int hn_tx_stat_ulong_sysctl(SYSCTL_HANDLER_ARGS); static int hn_tx_conf_int_sysctl(SYSCTL_HANDLER_ARGS); static int hn_ndis_version_sysctl(SYSCTL_HANDLER_ARGS); static int hn_caps_sysctl(SYSCTL_HANDLER_ARGS); static int hn_hwassist_sysctl(SYSCTL_HANDLER_ARGS); static int hn_rss_key_sysctl(SYSCTL_HANDLER_ARGS); static int hn_rss_ind_sysctl(SYSCTL_HANDLER_ARGS); static int hn_check_iplen(const struct mbuf *, int); static int hn_create_tx_ring(struct hn_softc *, int); static void hn_destroy_tx_ring(struct hn_tx_ring *); static int hn_create_tx_data(struct hn_softc *, int); static void hn_fixup_tx_data(struct hn_softc *); static void hn_destroy_tx_data(struct hn_softc *); static void hn_start_taskfunc(void *, int); static void hn_start_txeof_taskfunc(void *, int); static int hn_encap(struct hn_tx_ring *, struct hn_txdesc *, struct mbuf **); static int hn_create_rx_data(struct hn_softc *sc, int); static void hn_destroy_rx_data(struct hn_softc *sc); static void hn_set_chim_size(struct hn_softc *, int); +static void hn_set_tso_maxsize(struct hn_softc *, int, int); static int hn_chan_attach(struct hn_softc *, struct vmbus_channel *); static void hn_chan_detach(struct hn_softc *, struct vmbus_channel *); static int hn_attach_subchans(struct hn_softc *); static void hn_detach_allchans(struct hn_softc *); static void hn_chan_callback(struct vmbus_channel *chan, void *xrxr); static void hn_set_ring_inuse(struct hn_softc *, int); static int hn_synth_attach(struct hn_softc *, int); static void hn_synth_detach(struct hn_softc *); static bool hn_tx_ring_pending(struct hn_tx_ring *); static void hn_suspend(struct hn_softc *); static void hn_resume(struct hn_softc *); static void hn_rx_drain(struct vmbus_channel *); static void hn_tx_resume(struct hn_softc *, int); static void hn_tx_ring_qflush(struct hn_tx_ring *); static int netvsc_detach(device_t dev); static void hn_nvs_handle_notify(struct hn_softc *sc, const struct vmbus_chanpkt_hdr *pkt); static void hn_nvs_handle_comp(struct hn_softc *sc, struct vmbus_channel *chan, const struct vmbus_chanpkt_hdr *pkt); static void hn_nvs_handle_rxbuf(struct hn_softc *sc, struct hn_rx_ring *rxr, struct vmbus_channel *chan, const struct vmbus_chanpkt_hdr *pkthdr); static void hn_nvs_ack_rxbuf(struct vmbus_channel *chan, uint64_t tid); static int hn_transmit(struct ifnet *, struct mbuf *); static void hn_xmit_qflush(struct ifnet *); static int hn_xmit(struct hn_tx_ring *, int); static void hn_xmit_txeof(struct hn_tx_ring *); static void hn_xmit_taskfunc(void *, int); static void hn_xmit_txeof_taskfunc(void *, int); static const uint8_t hn_rss_key_default[NDIS_HASH_KEYSIZE_TOEPLITZ] = { 0x6d, 0x5a, 0x56, 0xda, 0x25, 0x5b, 0x0e, 0xc2, 0x41, 0x67, 0x25, 0x3d, 0x43, 0xa3, 0x8f, 0xb0, 0xd0, 0xca, 0x2b, 0xcb, 0xae, 0x7b, 0x30, 0xb4, 0x77, 0xcb, 0x2d, 0xa3, 0x80, 0x30, 0xf2, 0x0c, 0x6a, 0x42, 0xb7, 0x3b, 0xbe, 0xac, 0x01, 0xfa }; #if __FreeBSD_version >= 1100099 static void hn_set_lro_lenlim(struct hn_softc *sc, int lenlim) { int i; for (i = 0; i < sc->hn_rx_ring_inuse; ++i) sc->hn_rx_ring[i].hn_lro.lro_length_lim = lenlim; } #endif static int hn_get_txswq_depth(const struct hn_tx_ring *txr) { KASSERT(txr->hn_txdesc_cnt > 0, ("tx ring is not setup yet")); if (hn_tx_swq_depth < txr->hn_txdesc_cnt) return txr->hn_txdesc_cnt; return hn_tx_swq_depth; } static int hn_rss_reconfig(struct hn_softc *sc) { int error; HN_LOCK_ASSERT(sc); if ((sc->hn_flags & HN_FLAG_SYNTH_ATTACHED) == 0) return (ENXIO); /* * Disable RSS first. * * NOTE: * Direct reconfiguration by setting the UNCHG flags does * _not_ work properly. */ if (bootverbose) if_printf(sc->hn_ifp, "disable RSS\n"); error = hn_rndis_conf_rss(sc, NDIS_RSS_FLAG_DISABLE); if (error) { if_printf(sc->hn_ifp, "RSS disable failed\n"); return (error); } /* * Reenable the RSS w/ the updated RSS key or indirect * table. */ if (bootverbose) if_printf(sc->hn_ifp, "reconfig RSS\n"); error = hn_rndis_conf_rss(sc, NDIS_RSS_FLAG_NONE); if (error) { if_printf(sc->hn_ifp, "RSS reconfig failed\n"); return (error); } return (0); } static void hn_rss_ind_fixup(struct hn_softc *sc, int nchan) { struct ndis_rssprm_toeplitz *rss = &sc->hn_rss; int i; KASSERT(nchan > 1, ("invalid # of channels %d", nchan)); /* * Check indirect table to make sure that all channels in it * can be used. */ for (i = 0; i < NDIS_HASH_INDCNT; ++i) { if (rss->rss_ind[i] >= nchan) { if_printf(sc->hn_ifp, "RSS indirect table %d fixup: %u -> %d\n", i, rss->rss_ind[i], nchan - 1); rss->rss_ind[i] = nchan - 1; } } } static int hn_ifmedia_upd(struct ifnet *ifp __unused) { return EOPNOTSUPP; } static void hn_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) { struct hn_softc *sc = ifp->if_softc; ifmr->ifm_status = IFM_AVALID; ifmr->ifm_active = IFM_ETHER; if (!sc->hn_carrier) { ifmr->ifm_active |= IFM_NONE; return; } ifmr->ifm_status |= IFM_ACTIVE; ifmr->ifm_active |= IFM_10G_T | IFM_FDX; } /* {F8615163-DF3E-46c5-913F-F2D2F965ED0E} */ static const struct hyperv_guid g_net_vsc_device_type = { .hv_guid = {0x63, 0x51, 0x61, 0xF8, 0x3E, 0xDF, 0xc5, 0x46, 0x91, 0x3F, 0xF2, 0xD2, 0xF9, 0x65, 0xED, 0x0E} }; /* * Standard probe entry point. * */ static int netvsc_probe(device_t dev) { if (VMBUS_PROBE_GUID(device_get_parent(dev), dev, &g_net_vsc_device_type) == 0) { device_set_desc(dev, "Hyper-V Network Interface"); return BUS_PROBE_DEFAULT; } return ENXIO; } /* * Standard attach entry point. * * Called when the driver is loaded. It allocates needed resources, * and initializes the "hardware" and software. */ static int netvsc_attach(device_t dev) { struct hn_softc *sc = device_get_softc(dev); struct sysctl_oid_list *child; struct sysctl_ctx_list *ctx; uint8_t eaddr[ETHER_ADDR_LEN]; uint32_t link_status; struct ifnet *ifp = NULL; int error, ring_cnt, tx_ring_cnt; - int tso_maxlen; sc->hn_dev = dev; sc->hn_prichan = vmbus_get_channel(dev); HN_LOCK_INIT(sc); /* * Setup taskqueue for transmission. */ if (hn_tx_taskq == NULL) { sc->hn_tx_taskq = taskqueue_create("hn_tx", M_WAITOK, taskqueue_thread_enqueue, &sc->hn_tx_taskq); if (hn_bind_tx_taskq >= 0) { int cpu = hn_bind_tx_taskq; cpuset_t cpu_set; if (cpu > mp_ncpus - 1) cpu = mp_ncpus - 1; CPU_SETOF(cpu, &cpu_set); taskqueue_start_threads_cpuset(&sc->hn_tx_taskq, 1, PI_NET, &cpu_set, "%s tx", device_get_nameunit(dev)); } else { taskqueue_start_threads(&sc->hn_tx_taskq, 1, PI_NET, "%s tx", device_get_nameunit(dev)); } } else { sc->hn_tx_taskq = hn_tx_taskq; } /* * Allocate ifnet and setup its name earlier, so that if_printf * can be used by functions, which will be called after * ether_ifattach(). */ ifp = sc->hn_ifp = if_alloc(IFT_ETHER); ifp->if_softc = sc; if_initname(ifp, device_get_name(dev), device_get_unit(dev)); /* * Initialize ifmedia earlier so that it can be unconditionally * destroyed, if error happened later on. */ ifmedia_init(&sc->hn_media, 0, hn_ifmedia_upd, hn_ifmedia_sts); /* * Figure out the # of RX rings (ring_cnt) and the # of TX rings * to use (tx_ring_cnt). * * NOTE: * The # of RX rings to use is same as the # of channels to use. */ ring_cnt = hn_chan_cnt; if (ring_cnt <= 0) { /* Default */ ring_cnt = mp_ncpus; if (ring_cnt > HN_RING_CNT_DEF_MAX) ring_cnt = HN_RING_CNT_DEF_MAX; } else if (ring_cnt > mp_ncpus) { ring_cnt = mp_ncpus; } tx_ring_cnt = hn_tx_ring_cnt; if (tx_ring_cnt <= 0 || tx_ring_cnt > ring_cnt) tx_ring_cnt = ring_cnt; if (hn_use_if_start) { /* ifnet.if_start only needs one TX ring. */ tx_ring_cnt = 1; } /* * Set the leader CPU for channels. */ sc->hn_cpu = atomic_fetchadd_int(&hn_cpu_index, ring_cnt) % mp_ncpus; /* * Create enough TX/RX rings, even if only limited number of * channels can be allocated. */ error = hn_create_tx_data(sc, tx_ring_cnt); if (error) goto failed; error = hn_create_rx_data(sc, ring_cnt); if (error) goto failed; /* * Create transaction context for NVS and RNDIS transactions. */ sc->hn_xact = vmbus_xact_ctx_create(bus_get_dma_tag(dev), HN_XACT_REQ_SIZE, HN_XACT_RESP_SIZE, 0); if (sc->hn_xact == NULL) goto failed; /* * Attach the synthetic parts, i.e. NVS and RNDIS. */ error = hn_synth_attach(sc, ETHERMTU); if (error) goto failed; error = hn_rndis_get_linkstatus(sc, &link_status); if (error) goto failed; if (link_status == NDIS_MEDIA_STATE_CONNECTED) sc->hn_carrier = 1; error = hn_rndis_get_eaddr(sc, eaddr); if (error) goto failed; #if __FreeBSD_version >= 1100099 if (sc->hn_rx_ring_inuse > 1) { /* * Reduce TCP segment aggregation limit for multiple * RX rings to increase ACK timeliness. */ hn_set_lro_lenlim(sc, HN_LRO_LENLIM_MULTIRX_DEF); } #endif /* * Fixup TX stuffs after synthetic parts are attached. */ hn_fixup_tx_data(sc); ctx = device_get_sysctl_ctx(dev); child = SYSCTL_CHILDREN(device_get_sysctl_tree(dev)); SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "nvs_version", CTLFLAG_RD, &sc->hn_nvs_ver, 0, "NVS version"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "ndis_version", CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0, hn_ndis_version_sysctl, "A", "NDIS version"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "caps", CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0, hn_caps_sysctl, "A", "capabilities"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "hwassist", CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0, hn_hwassist_sysctl, "A", "hwassist"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "rss_key", CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0, hn_rss_key_sysctl, "IU", "RSS key"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "rss_ind", CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0, hn_rss_ind_sysctl, "IU", "RSS indirect table"); /* * Setup the ifmedia, which has been initialized earlier. */ ifmedia_add(&sc->hn_media, IFM_ETHER | IFM_AUTO, 0, NULL); ifmedia_set(&sc->hn_media, IFM_ETHER | IFM_AUTO); /* XXX ifmedia_set really should do this for us */ sc->hn_media.ifm_media = sc->hn_media.ifm_cur->ifm_media; /* * Setup the ifnet for this interface. */ ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; ifp->if_ioctl = hn_ioctl; ifp->if_init = hn_init; if (hn_use_if_start) { int qdepth = hn_get_txswq_depth(&sc->hn_tx_ring[0]); ifp->if_start = hn_start; IFQ_SET_MAXLEN(&ifp->if_snd, qdepth); ifp->if_snd.ifq_drv_maxlen = qdepth - 1; IFQ_SET_READY(&ifp->if_snd); } else { ifp->if_transmit = hn_transmit; ifp->if_qflush = hn_xmit_qflush; } ifp->if_capabilities |= IFCAP_RXCSUM | IFCAP_LRO; #ifdef foo /* We can't diff IPv6 packets from IPv4 packets on RX path. */ ifp->if_capabilities |= IFCAP_RXCSUM_IPV6; #endif if (sc->hn_caps & HN_CAP_VLAN) { /* XXX not sure about VLAN_MTU. */ ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU; } ifp->if_hwassist = sc->hn_tx_ring[0].hn_csum_assist; if (ifp->if_hwassist & HN_CSUM_IP_MASK) ifp->if_capabilities |= IFCAP_TXCSUM; if (ifp->if_hwassist & HN_CSUM_IP6_MASK) ifp->if_capabilities |= IFCAP_TXCSUM_IPV6; if (sc->hn_caps & HN_CAP_TSO4) { ifp->if_capabilities |= IFCAP_TSO4; ifp->if_hwassist |= CSUM_IP_TSO; } if (sc->hn_caps & HN_CAP_TSO6) { ifp->if_capabilities |= IFCAP_TSO6; ifp->if_hwassist |= CSUM_IP6_TSO; } /* Enable all available capabilities by default. */ ifp->if_capenable = ifp->if_capabilities; - tso_maxlen = hn_tso_maxlen; - if (tso_maxlen <= 0 || tso_maxlen > IP_MAXPACKET) - tso_maxlen = IP_MAXPACKET; - ifp->if_hw_tsomaxsegcount = HN_TX_DATA_SEGCNT_MAX; - ifp->if_hw_tsomaxsegsize = PAGE_SIZE; - ifp->if_hw_tsomax = tso_maxlen - - (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN); + if (ifp->if_capabilities & (IFCAP_TSO6 | IFCAP_TSO4)) { + hn_set_tso_maxsize(sc, hn_tso_maxlen, ETHERMTU); + ifp->if_hw_tsomaxsegcount = HN_TX_DATA_SEGCNT_MAX; + ifp->if_hw_tsomaxsegsize = PAGE_SIZE; + } ether_ifattach(ifp, eaddr); - if (bootverbose) { - if_printf(ifp, "TSO: %u/%u/%u\n", ifp->if_hw_tsomax, + if ((ifp->if_capabilities & (IFCAP_TSO6 | IFCAP_TSO4)) && bootverbose) { + if_printf(ifp, "TSO segcnt %u segsz %u\n", ifp->if_hw_tsomaxsegcount, ifp->if_hw_tsomaxsegsize); } /* Inform the upper layer about the long frame support. */ ifp->if_hdrlen = sizeof(struct ether_vlan_header); return (0); failed: if (sc->hn_flags & HN_FLAG_SYNTH_ATTACHED) hn_synth_detach(sc); netvsc_detach(dev); return (error); } static int netvsc_detach(device_t dev) { struct hn_softc *sc = device_get_softc(dev); struct ifnet *ifp = sc->hn_ifp; if (device_is_attached(dev)) { HN_LOCK(sc); if (sc->hn_flags & HN_FLAG_SYNTH_ATTACHED) { if (ifp->if_drv_flags & IFF_DRV_RUNNING) hn_stop(sc); hn_synth_detach(sc); } HN_UNLOCK(sc); ether_ifdetach(ifp); } ifmedia_removeall(&sc->hn_media); hn_destroy_rx_data(sc); hn_destroy_tx_data(sc); if (sc->hn_tx_taskq != hn_tx_taskq) taskqueue_free(sc->hn_tx_taskq); if (sc->hn_xact != NULL) vmbus_xact_ctx_destroy(sc->hn_xact); if_free(ifp); HN_LOCK_DESTROY(sc); return (0); } /* * Standard shutdown entry point */ static int netvsc_shutdown(device_t dev) { return (0); } static __inline int hn_txdesc_dmamap_load(struct hn_tx_ring *txr, struct hn_txdesc *txd, struct mbuf **m_head, bus_dma_segment_t *segs, int *nsegs) { struct mbuf *m = *m_head; int error; error = bus_dmamap_load_mbuf_sg(txr->hn_tx_data_dtag, txd->data_dmap, m, segs, nsegs, BUS_DMA_NOWAIT); if (error == EFBIG) { struct mbuf *m_new; m_new = m_collapse(m, M_NOWAIT, HN_TX_DATA_SEGCNT_MAX); if (m_new == NULL) return ENOBUFS; else *m_head = m = m_new; txr->hn_tx_collapsed++; error = bus_dmamap_load_mbuf_sg(txr->hn_tx_data_dtag, txd->data_dmap, m, segs, nsegs, BUS_DMA_NOWAIT); } if (!error) { bus_dmamap_sync(txr->hn_tx_data_dtag, txd->data_dmap, BUS_DMASYNC_PREWRITE); txd->flags |= HN_TXD_FLAG_DMAMAP; } return error; } static __inline void hn_txdesc_dmamap_unload(struct hn_tx_ring *txr, struct hn_txdesc *txd) { if (txd->flags & HN_TXD_FLAG_DMAMAP) { bus_dmamap_sync(txr->hn_tx_data_dtag, txd->data_dmap, BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(txr->hn_tx_data_dtag, txd->data_dmap); txd->flags &= ~HN_TXD_FLAG_DMAMAP; } } static __inline int hn_txdesc_put(struct hn_tx_ring *txr, struct hn_txdesc *txd) { KASSERT((txd->flags & HN_TXD_FLAG_ONLIST) == 0, ("put an onlist txd %#x", txd->flags)); KASSERT(txd->refs > 0, ("invalid txd refs %d", txd->refs)); if (atomic_fetchadd_int(&txd->refs, -1) != 1) return 0; hn_txdesc_dmamap_unload(txr, txd); if (txd->m != NULL) { m_freem(txd->m); txd->m = NULL; } txd->flags |= HN_TXD_FLAG_ONLIST; #ifndef HN_USE_TXDESC_BUFRING mtx_lock_spin(&txr->hn_txlist_spin); KASSERT(txr->hn_txdesc_avail >= 0 && txr->hn_txdesc_avail < txr->hn_txdesc_cnt, ("txdesc_put: invalid txd avail %d", txr->hn_txdesc_avail)); txr->hn_txdesc_avail++; SLIST_INSERT_HEAD(&txr->hn_txlist, txd, link); mtx_unlock_spin(&txr->hn_txlist_spin); #else atomic_add_int(&txr->hn_txdesc_avail, 1); buf_ring_enqueue(txr->hn_txdesc_br, txd); #endif return 1; } static __inline struct hn_txdesc * hn_txdesc_get(struct hn_tx_ring *txr) { struct hn_txdesc *txd; #ifndef HN_USE_TXDESC_BUFRING mtx_lock_spin(&txr->hn_txlist_spin); txd = SLIST_FIRST(&txr->hn_txlist); if (txd != NULL) { KASSERT(txr->hn_txdesc_avail > 0, ("txdesc_get: invalid txd avail %d", txr->hn_txdesc_avail)); txr->hn_txdesc_avail--; SLIST_REMOVE_HEAD(&txr->hn_txlist, link); } mtx_unlock_spin(&txr->hn_txlist_spin); #else txd = buf_ring_dequeue_sc(txr->hn_txdesc_br); #endif if (txd != NULL) { #ifdef HN_USE_TXDESC_BUFRING atomic_subtract_int(&txr->hn_txdesc_avail, 1); #endif KASSERT(txd->m == NULL && txd->refs == 0 && (txd->flags & HN_TXD_FLAG_ONLIST), ("invalid txd")); txd->flags &= ~HN_TXD_FLAG_ONLIST; txd->refs = 1; } return txd; } static __inline void hn_txdesc_hold(struct hn_txdesc *txd) { /* 0->1 transition will never work */ KASSERT(txd->refs > 0, ("invalid refs %d", txd->refs)); atomic_add_int(&txd->refs, 1); } static bool hn_tx_ring_pending(struct hn_tx_ring *txr) { bool pending = false; #ifndef HN_USE_TXDESC_BUFRING mtx_lock_spin(&txr->hn_txlist_spin); if (txr->hn_txdesc_avail != txr->hn_txdesc_cnt) pending = true; mtx_unlock_spin(&txr->hn_txlist_spin); #else if (!buf_ring_full(txr->hn_txdesc_br)) pending = true; #endif return (pending); } static __inline void hn_txeof(struct hn_tx_ring *txr) { txr->hn_has_txeof = 0; txr->hn_txeof(txr); } static void hn_tx_done(struct hn_send_ctx *sndc, struct hn_softc *sc, struct vmbus_channel *chan, const void *data __unused, int dlen __unused) { struct hn_txdesc *txd = sndc->hn_cbarg; struct hn_tx_ring *txr; if (sndc->hn_chim_idx != HN_NVS_CHIM_IDX_INVALID) hn_chim_free(sc, sndc->hn_chim_idx); txr = txd->txr; KASSERT(txr->hn_chan == chan, ("channel mismatch, on chan%u, should be chan%u", vmbus_chan_subidx(chan), vmbus_chan_subidx(txr->hn_chan))); txr->hn_has_txeof = 1; hn_txdesc_put(txr, txd); ++txr->hn_txdone_cnt; if (txr->hn_txdone_cnt >= HN_EARLY_TXEOF_THRESH) { txr->hn_txdone_cnt = 0; if (txr->hn_oactive) hn_txeof(txr); } } void hn_chan_rollup(struct hn_rx_ring *rxr, struct hn_tx_ring *txr) { #if defined(INET) || defined(INET6) tcp_lro_flush_all(&rxr->hn_lro); #endif /* * NOTE: * 'txr' could be NULL, if multiple channels and * ifnet.if_start method are enabled. */ if (txr == NULL || !txr->hn_has_txeof) return; txr->hn_txdone_cnt = 0; hn_txeof(txr); } static __inline uint32_t hn_rndis_pktmsg_offset(uint32_t ofs) { KASSERT(ofs >= sizeof(struct rndis_packet_msg), ("invalid RNDIS packet msg offset %u", ofs)); return (ofs - __offsetof(struct rndis_packet_msg, rm_dataoffset)); } /* * NOTE: * If this function fails, then both txd and m_head0 will be freed. */ static int hn_encap(struct hn_tx_ring *txr, struct hn_txdesc *txd, struct mbuf **m_head0) { bus_dma_segment_t segs[HN_TX_DATA_SEGCNT_MAX]; int error, nsegs, i; struct mbuf *m_head = *m_head0; struct rndis_packet_msg *pkt; uint32_t send_buf_section_idx; int send_buf_section_size, pktlen; uint32_t *pi_data; /* * extension points to the area reserved for the * rndis_filter_packet, which is placed just after * the netvsc_packet (and rppi struct, if present; * length is updated later). */ pkt = txd->rndis_pkt; pkt->rm_type = REMOTE_NDIS_PACKET_MSG; pkt->rm_len = sizeof(*pkt) + m_head->m_pkthdr.len; pkt->rm_dataoffset = sizeof(*pkt); pkt->rm_datalen = m_head->m_pkthdr.len; pkt->rm_pktinfooffset = sizeof(*pkt); pkt->rm_pktinfolen = 0; if (txr->hn_tx_flags & HN_TX_FLAG_HASHVAL) { /* * Set the hash value for this packet, so that the host could * dispatch the TX done event for this packet back to this TX * ring's channel. */ pi_data = hn_rndis_pktinfo_append(pkt, HN_RNDIS_PKT_LEN, HN_NDIS_HASH_VALUE_SIZE, HN_NDIS_PKTINFO_TYPE_HASHVAL); *pi_data = txr->hn_tx_idx; } if (m_head->m_flags & M_VLANTAG) { pi_data = hn_rndis_pktinfo_append(pkt, HN_RNDIS_PKT_LEN, NDIS_VLAN_INFO_SIZE, NDIS_PKTINFO_TYPE_VLAN); *pi_data = NDIS_VLAN_INFO_MAKE( EVL_VLANOFTAG(m_head->m_pkthdr.ether_vtag), EVL_PRIOFTAG(m_head->m_pkthdr.ether_vtag), EVL_CFIOFTAG(m_head->m_pkthdr.ether_vtag)); } if (m_head->m_pkthdr.csum_flags & CSUM_TSO) { #if defined(INET6) || defined(INET) struct ether_vlan_header *eh; int ether_len; /* * XXX need m_pullup and use mtodo */ eh = mtod(m_head, struct ether_vlan_header*); if (eh->evl_encap_proto == htons(ETHERTYPE_VLAN)) ether_len = ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN; else ether_len = ETHER_HDR_LEN; pi_data = hn_rndis_pktinfo_append(pkt, HN_RNDIS_PKT_LEN, NDIS_LSO2_INFO_SIZE, NDIS_PKTINFO_TYPE_LSO); #ifdef INET if (m_head->m_pkthdr.csum_flags & CSUM_IP_TSO) { struct ip *ip = (struct ip *)(m_head->m_data + ether_len); unsigned long iph_len = ip->ip_hl << 2; struct tcphdr *th = (struct tcphdr *)((caddr_t)ip + iph_len); ip->ip_len = 0; ip->ip_sum = 0; th->th_sum = in_pseudo(ip->ip_src.s_addr, ip->ip_dst.s_addr, htons(IPPROTO_TCP)); *pi_data = NDIS_LSO2_INFO_MAKEIPV4(0, m_head->m_pkthdr.tso_segsz); } #endif #if defined(INET6) && defined(INET) else #endif #ifdef INET6 { struct ip6_hdr *ip6 = (struct ip6_hdr *) (m_head->m_data + ether_len); struct tcphdr *th = (struct tcphdr *)(ip6 + 1); ip6->ip6_plen = 0; th->th_sum = in6_cksum_pseudo(ip6, 0, IPPROTO_TCP, 0); *pi_data = NDIS_LSO2_INFO_MAKEIPV6(0, m_head->m_pkthdr.tso_segsz); } #endif #endif /* INET6 || INET */ } else if (m_head->m_pkthdr.csum_flags & txr->hn_csum_assist) { pi_data = hn_rndis_pktinfo_append(pkt, HN_RNDIS_PKT_LEN, NDIS_TXCSUM_INFO_SIZE, NDIS_PKTINFO_TYPE_CSUM); if (m_head->m_pkthdr.csum_flags & (CSUM_IP6_TCP | CSUM_IP6_UDP)) { *pi_data = NDIS_TXCSUM_INFO_IPV6; } else { *pi_data = NDIS_TXCSUM_INFO_IPV4; if (m_head->m_pkthdr.csum_flags & CSUM_IP) *pi_data |= NDIS_TXCSUM_INFO_IPCS; } if (m_head->m_pkthdr.csum_flags & (CSUM_IP_TCP | CSUM_IP6_TCP)) *pi_data |= NDIS_TXCSUM_INFO_TCPCS; else if (m_head->m_pkthdr.csum_flags & (CSUM_IP_UDP | CSUM_IP6_UDP)) *pi_data |= NDIS_TXCSUM_INFO_UDPCS; } pktlen = pkt->rm_pktinfooffset + pkt->rm_pktinfolen; /* Convert RNDIS packet message offsets */ pkt->rm_dataoffset = hn_rndis_pktmsg_offset(pkt->rm_dataoffset); pkt->rm_pktinfooffset = hn_rndis_pktmsg_offset(pkt->rm_pktinfooffset); /* * Chimney send, if the packet could fit into one chimney buffer. */ if (pkt->rm_len < txr->hn_chim_size) { txr->hn_tx_chimney_tried++; send_buf_section_idx = hn_chim_alloc(txr->hn_sc); if (send_buf_section_idx != HN_NVS_CHIM_IDX_INVALID) { uint8_t *dest = txr->hn_sc->hn_chim + (send_buf_section_idx * txr->hn_sc->hn_chim_szmax); memcpy(dest, pkt, pktlen); dest += pktlen; m_copydata(m_head, 0, m_head->m_pkthdr.len, dest); send_buf_section_size = pkt->rm_len; txr->hn_gpa_cnt = 0; txr->hn_tx_chimney++; goto done; } } error = hn_txdesc_dmamap_load(txr, txd, &m_head, segs, &nsegs); if (error) { int freed; /* * This mbuf is not linked w/ the txd yet, so free it now. */ m_freem(m_head); *m_head0 = NULL; freed = hn_txdesc_put(txr, txd); KASSERT(freed != 0, ("fail to free txd upon txdma error")); txr->hn_txdma_failed++; if_inc_counter(txr->hn_sc->hn_ifp, IFCOUNTER_OERRORS, 1); return error; } *m_head0 = m_head; /* +1 RNDIS packet message */ txr->hn_gpa_cnt = nsegs + 1; /* send packet with page buffer */ txr->hn_gpa[0].gpa_page = atop(txd->rndis_pkt_paddr); txr->hn_gpa[0].gpa_ofs = txd->rndis_pkt_paddr & PAGE_MASK; txr->hn_gpa[0].gpa_len = pktlen; /* * Fill the page buffers with mbuf info after the page * buffer for RNDIS packet message. */ for (i = 0; i < nsegs; ++i) { struct vmbus_gpa *gpa = &txr->hn_gpa[i + 1]; gpa->gpa_page = atop(segs[i].ds_addr); gpa->gpa_ofs = segs[i].ds_addr & PAGE_MASK; gpa->gpa_len = segs[i].ds_len; } send_buf_section_idx = HN_NVS_CHIM_IDX_INVALID; send_buf_section_size = 0; done: txd->m = m_head; /* Set the completion routine */ hn_send_ctx_init(&txd->send_ctx, hn_tx_done, txd, send_buf_section_idx, send_buf_section_size); return 0; } /* * NOTE: * If this function fails, then txd will be freed, but the mbuf * associated w/ the txd will _not_ be freed. */ static int hn_send_pkt(struct ifnet *ifp, struct hn_tx_ring *txr, struct hn_txdesc *txd) { int error, send_failed = 0; again: /* * Make sure that txd is not freed before ETHER_BPF_MTAP. */ hn_txdesc_hold(txd); error = hv_nv_on_send(txr->hn_chan, HN_NVS_RNDIS_MTYPE_DATA, &txd->send_ctx, txr->hn_gpa, txr->hn_gpa_cnt); if (!error) { ETHER_BPF_MTAP(ifp, txd->m); if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); if (!hn_use_if_start) { if_inc_counter(ifp, IFCOUNTER_OBYTES, txd->m->m_pkthdr.len); if (txd->m->m_flags & M_MCAST) if_inc_counter(ifp, IFCOUNTER_OMCASTS, 1); } txr->hn_pkts++; } hn_txdesc_put(txr, txd); if (__predict_false(error)) { int freed; /* * This should "really rarely" happen. * * XXX Too many RX to be acked or too many sideband * commands to run? Ask netvsc_channel_rollup() * to kick start later. */ txr->hn_has_txeof = 1; if (!send_failed) { txr->hn_send_failed++; send_failed = 1; /* * Try sending again after set hn_has_txeof; * in case that we missed the last * netvsc_channel_rollup(). */ goto again; } if_printf(ifp, "send failed\n"); /* * Caller will perform further processing on the * associated mbuf, so don't free it in hn_txdesc_put(); * only unload it from the DMA map in hn_txdesc_put(), * if it was loaded. */ txd->m = NULL; freed = hn_txdesc_put(txr, txd); KASSERT(freed != 0, ("fail to free txd upon send error")); txr->hn_send_failed++; } return error; } /* * Start a transmit of one or more packets */ static int hn_start_locked(struct hn_tx_ring *txr, int len) { struct hn_softc *sc = txr->hn_sc; struct ifnet *ifp = sc->hn_ifp; KASSERT(hn_use_if_start, ("hn_start_locked is called, when if_start is disabled")); KASSERT(txr == &sc->hn_tx_ring[0], ("not the first TX ring")); mtx_assert(&txr->hn_tx_lock, MA_OWNED); if (__predict_false(txr->hn_suspended)) return 0; if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) != IFF_DRV_RUNNING) return 0; while (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) { struct hn_txdesc *txd; struct mbuf *m_head; int error; IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head); if (m_head == NULL) break; if (len > 0 && m_head->m_pkthdr.len > len) { /* * This sending could be time consuming; let callers * dispatch this packet sending (and sending of any * following up packets) to tx taskqueue. */ IFQ_DRV_PREPEND(&ifp->if_snd, m_head); return 1; } txd = hn_txdesc_get(txr); if (txd == NULL) { txr->hn_no_txdescs++; IFQ_DRV_PREPEND(&ifp->if_snd, m_head); atomic_set_int(&ifp->if_drv_flags, IFF_DRV_OACTIVE); break; } error = hn_encap(txr, txd, &m_head); if (error) { /* Both txd and m_head are freed */ continue; } error = hn_send_pkt(ifp, txr, txd); if (__predict_false(error)) { /* txd is freed, but m_head is not */ IFQ_DRV_PREPEND(&ifp->if_snd, m_head); atomic_set_int(&ifp->if_drv_flags, IFF_DRV_OACTIVE); break; } } return 0; } /* * Link up/down notification */ void netvsc_linkstatus_callback(struct hn_softc *sc, uint32_t status) { if (status == 1) { sc->hn_carrier = 1; } else { sc->hn_carrier = 0; } } /* * Append the specified data to the indicated mbuf chain, * Extend the mbuf chain if the new data does not fit in * existing space. * * This is a minor rewrite of m_append() from sys/kern/uipc_mbuf.c. * There should be an equivalent in the kernel mbuf code, * but there does not appear to be one yet. * * Differs from m_append() in that additional mbufs are * allocated with cluster size MJUMPAGESIZE, and filled * accordingly. * * Return 1 if able to complete the job; otherwise 0. */ static int hv_m_append(struct mbuf *m0, int len, c_caddr_t cp) { struct mbuf *m, *n; int remainder, space; for (m = m0; m->m_next != NULL; m = m->m_next) ; remainder = len; space = M_TRAILINGSPACE(m); if (space > 0) { /* * Copy into available space. */ if (space > remainder) space = remainder; bcopy(cp, mtod(m, caddr_t) + m->m_len, space); m->m_len += space; cp += space; remainder -= space; } while (remainder > 0) { /* * Allocate a new mbuf; could check space * and allocate a cluster instead. */ n = m_getjcl(M_NOWAIT, m->m_type, 0, MJUMPAGESIZE); if (n == NULL) break; n->m_len = min(MJUMPAGESIZE, remainder); bcopy(cp, mtod(n, caddr_t), n->m_len); cp += n->m_len; remainder -= n->m_len; m->m_next = n; m = n; } if (m0->m_flags & M_PKTHDR) m0->m_pkthdr.len += len - remainder; return (remainder == 0); } #if defined(INET) || defined(INET6) static __inline int hn_lro_rx(struct lro_ctrl *lc, struct mbuf *m) { #if __FreeBSD_version >= 1100095 if (hn_lro_mbufq_depth) { tcp_lro_queue_mbuf(lc, m); return 0; } #endif return tcp_lro_rx(lc, m, 0); } #endif /* * Called when we receive a data packet from the "wire" on the * specified device * * Note: This is no longer used as a callback */ int hn_rxpkt(struct hn_rx_ring *rxr, const void *data, int dlen, const struct hn_recvinfo *info) { struct ifnet *ifp = rxr->hn_ifp; struct mbuf *m_new; int size, do_lro = 0, do_csum = 1; int hash_type; if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) return (0); /* * Bail out if packet contains more data than configured MTU. */ if (dlen > (ifp->if_mtu + ETHER_HDR_LEN)) { return (0); } else if (dlen <= MHLEN) { m_new = m_gethdr(M_NOWAIT, MT_DATA); if (m_new == NULL) { if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1); return (0); } memcpy(mtod(m_new, void *), data, dlen); m_new->m_pkthdr.len = m_new->m_len = dlen; rxr->hn_small_pkts++; } else { /* * Get an mbuf with a cluster. For packets 2K or less, * get a standard 2K cluster. For anything larger, get a * 4K cluster. Any buffers larger than 4K can cause problems * if looped around to the Hyper-V TX channel, so avoid them. */ size = MCLBYTES; if (dlen > MCLBYTES) { /* 4096 */ size = MJUMPAGESIZE; } m_new = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, size); if (m_new == NULL) { if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1); return (0); } hv_m_append(m_new, dlen, data); } m_new->m_pkthdr.rcvif = ifp; if (__predict_false((ifp->if_capenable & IFCAP_RXCSUM) == 0)) do_csum = 0; /* receive side checksum offload */ if (info->csum_info != HN_NDIS_RXCSUM_INFO_INVALID) { /* IP csum offload */ if ((info->csum_info & NDIS_RXCSUM_INFO_IPCS_OK) && do_csum) { m_new->m_pkthdr.csum_flags |= (CSUM_IP_CHECKED | CSUM_IP_VALID); rxr->hn_csum_ip++; } /* TCP/UDP csum offload */ if ((info->csum_info & (NDIS_RXCSUM_INFO_UDPCS_OK | NDIS_RXCSUM_INFO_TCPCS_OK)) && do_csum) { m_new->m_pkthdr.csum_flags |= (CSUM_DATA_VALID | CSUM_PSEUDO_HDR); m_new->m_pkthdr.csum_data = 0xffff; if (info->csum_info & NDIS_RXCSUM_INFO_TCPCS_OK) rxr->hn_csum_tcp++; else rxr->hn_csum_udp++; } if ((info->csum_info & (NDIS_RXCSUM_INFO_TCPCS_OK | NDIS_RXCSUM_INFO_IPCS_OK)) == (NDIS_RXCSUM_INFO_TCPCS_OK | NDIS_RXCSUM_INFO_IPCS_OK)) do_lro = 1; } else { const struct ether_header *eh; uint16_t etype; int hoff; hoff = sizeof(*eh); if (m_new->m_len < hoff) goto skip; eh = mtod(m_new, struct ether_header *); etype = ntohs(eh->ether_type); if (etype == ETHERTYPE_VLAN) { const struct ether_vlan_header *evl; hoff = sizeof(*evl); if (m_new->m_len < hoff) goto skip; evl = mtod(m_new, struct ether_vlan_header *); etype = ntohs(evl->evl_proto); } if (etype == ETHERTYPE_IP) { int pr; pr = hn_check_iplen(m_new, hoff); if (pr == IPPROTO_TCP) { if (do_csum && (rxr->hn_trust_hcsum & HN_TRUST_HCSUM_TCP)) { rxr->hn_csum_trusted++; m_new->m_pkthdr.csum_flags |= (CSUM_IP_CHECKED | CSUM_IP_VALID | CSUM_DATA_VALID | CSUM_PSEUDO_HDR); m_new->m_pkthdr.csum_data = 0xffff; } do_lro = 1; } else if (pr == IPPROTO_UDP) { if (do_csum && (rxr->hn_trust_hcsum & HN_TRUST_HCSUM_UDP)) { rxr->hn_csum_trusted++; m_new->m_pkthdr.csum_flags |= (CSUM_IP_CHECKED | CSUM_IP_VALID | CSUM_DATA_VALID | CSUM_PSEUDO_HDR); m_new->m_pkthdr.csum_data = 0xffff; } } else if (pr != IPPROTO_DONE && do_csum && (rxr->hn_trust_hcsum & HN_TRUST_HCSUM_IP)) { rxr->hn_csum_trusted++; m_new->m_pkthdr.csum_flags |= (CSUM_IP_CHECKED | CSUM_IP_VALID); } } } skip: if (info->vlan_info != HN_NDIS_VLAN_INFO_INVALID) { m_new->m_pkthdr.ether_vtag = EVL_MAKETAG( NDIS_VLAN_INFO_ID(info->vlan_info), NDIS_VLAN_INFO_PRI(info->vlan_info), NDIS_VLAN_INFO_CFI(info->vlan_info)); m_new->m_flags |= M_VLANTAG; } if (info->hash_info != HN_NDIS_HASH_INFO_INVALID) { rxr->hn_rss_pkts++; 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 & NDIS_HASH_TYPE_MASK); switch (type) { case NDIS_HASH_IPV4: hash_type = M_HASHTYPE_RSS_IPV4; break; case NDIS_HASH_TCP_IPV4: hash_type = M_HASHTYPE_RSS_TCP_IPV4; break; case NDIS_HASH_IPV6: hash_type = M_HASHTYPE_RSS_IPV6; break; case NDIS_HASH_IPV6_EX: hash_type = M_HASHTYPE_RSS_IPV6_EX; break; case NDIS_HASH_TCP_IPV6: hash_type = M_HASHTYPE_RSS_TCP_IPV6; break; case NDIS_HASH_TCP_IPV6_EX: hash_type = M_HASHTYPE_RSS_TCP_IPV6_EX; break; } } } else { m_new->m_pkthdr.flowid = rxr->hn_rx_idx; hash_type = M_HASHTYPE_OPAQUE; } M_HASHTYPE_SET(m_new, hash_type); /* * Note: Moved RX completion back to hv_nv_on_receive() so all * messages (not just data messages) will trigger a response. */ if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); rxr->hn_pkts++; if ((ifp->if_capenable & IFCAP_LRO) && do_lro) { #if defined(INET) || defined(INET6) struct lro_ctrl *lro = &rxr->hn_lro; if (lro->lro_cnt) { rxr->hn_lro_tried++; if (hn_lro_rx(lro, m_new) == 0) { /* DONE! */ return 0; } } #endif } /* We're not holding the lock here, so don't release it */ (*ifp->if_input)(ifp, m_new); return (0); } static int hn_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) { struct hn_softc *sc = ifp->if_softc; struct ifreq *ifr = (struct ifreq *)data; int mask, error = 0; switch (cmd) { case SIOCSIFMTU: if (ifr->ifr_mtu > NETVSC_MAX_CONFIGURABLE_MTU) { error = EINVAL; break; } HN_LOCK(sc); if ((sc->hn_flags & HN_FLAG_SYNTH_ATTACHED) == 0) { HN_UNLOCK(sc); break; } if ((sc->hn_caps & HN_CAP_MTU) == 0) { /* Can't change MTU */ HN_UNLOCK(sc); error = EOPNOTSUPP; break; } if (ifp->if_mtu == ifr->ifr_mtu) { HN_UNLOCK(sc); break; } /* Obtain and record requested MTU */ ifp->if_mtu = ifr->ifr_mtu; #if __FreeBSD_version >= 1100099 /* * Make sure that LRO aggregation length limit is still * valid, after the MTU change. */ if (sc->hn_rx_ring[0].hn_lro.lro_length_lim < HN_LRO_LENLIM_MIN(ifp)) hn_set_lro_lenlim(sc, HN_LRO_LENLIM_MIN(ifp)); #endif if (ifp->if_drv_flags & IFF_DRV_RUNNING) hn_suspend(sc); /* * Detach the synthetics parts, i.e. NVS and RNDIS. */ hn_synth_detach(sc); /* * Reattach the synthetic parts, i.e. NVS and RNDIS, * with the new MTU setting. * XXX check error. */ hn_synth_attach(sc, ifr->ifr_mtu); if (sc->hn_tx_ring[0].hn_chim_size > sc->hn_chim_szmax) hn_set_chim_size(sc, sc->hn_chim_szmax); + hn_set_tso_maxsize(sc, hn_tso_maxlen, ifr->ifr_mtu); /* All done! Resume now. */ if (ifp->if_drv_flags & IFF_DRV_RUNNING) hn_resume(sc); HN_UNLOCK(sc); break; case SIOCSIFFLAGS: HN_LOCK(sc); if ((sc->hn_flags & HN_FLAG_SYNTH_ATTACHED) == 0) { HN_UNLOCK(sc); break; } if (ifp->if_flags & IFF_UP) { /* * If only the state of the PROMISC flag changed, * then just use the 'set promisc mode' command * instead of reinitializing the entire NIC. Doing * a full re-init means reloading the firmware and * waiting for it to start up, which may take a * second or two. */ #ifdef notyet /* Fixme: Promiscuous mode? */ if (ifp->if_drv_flags & IFF_DRV_RUNNING && ifp->if_flags & IFF_PROMISC && !(sc->hn_if_flags & IFF_PROMISC)) { /* do something here for Hyper-V */ } else if (ifp->if_drv_flags & IFF_DRV_RUNNING && !(ifp->if_flags & IFF_PROMISC) && sc->hn_if_flags & IFF_PROMISC) { /* do something here for Hyper-V */ } else #endif hn_init_locked(sc); } else { if (ifp->if_drv_flags & IFF_DRV_RUNNING) { hn_stop(sc); } } sc->hn_if_flags = ifp->if_flags; HN_UNLOCK(sc); break; case SIOCSIFCAP: HN_LOCK(sc); mask = ifr->ifr_reqcap ^ ifp->if_capenable; if (mask & IFCAP_TXCSUM) { ifp->if_capenable ^= IFCAP_TXCSUM; if (ifp->if_capenable & IFCAP_TXCSUM) ifp->if_hwassist |= HN_CSUM_IP_HWASSIST(sc); else ifp->if_hwassist &= ~HN_CSUM_IP_HWASSIST(sc); } if (mask & IFCAP_TXCSUM_IPV6) { ifp->if_capenable ^= IFCAP_TXCSUM_IPV6; if (ifp->if_capenable & IFCAP_TXCSUM_IPV6) ifp->if_hwassist |= HN_CSUM_IP6_HWASSIST(sc); else ifp->if_hwassist &= ~HN_CSUM_IP6_HWASSIST(sc); } /* TODO: flip RNDIS offload parameters for RXCSUM. */ if (mask & IFCAP_RXCSUM) ifp->if_capenable ^= IFCAP_RXCSUM; #ifdef foo /* We can't diff IPv6 packets from IPv4 packets on RX path. */ if (mask & IFCAP_RXCSUM_IPV6) ifp->if_capenable ^= IFCAP_RXCSUM_IPV6; #endif if (mask & IFCAP_LRO) ifp->if_capenable ^= IFCAP_LRO; if (mask & IFCAP_TSO4) { ifp->if_capenable ^= IFCAP_TSO4; if (ifp->if_capenable & IFCAP_TSO4) ifp->if_hwassist |= CSUM_IP_TSO; else ifp->if_hwassist &= ~CSUM_IP_TSO; } if (mask & IFCAP_TSO6) { ifp->if_capenable ^= IFCAP_TSO6; if (ifp->if_capenable & IFCAP_TSO6) ifp->if_hwassist |= CSUM_IP6_TSO; else ifp->if_hwassist &= ~CSUM_IP6_TSO; } HN_UNLOCK(sc); break; case SIOCADDMULTI: case SIOCDELMULTI: /* Always all-multi */ /* * TODO: * Enable/disable all-multi according to the emptiness of * the mcast address list. */ break; case SIOCSIFMEDIA: case SIOCGIFMEDIA: error = ifmedia_ioctl(ifp, ifr, &sc->hn_media, cmd); break; default: error = ether_ioctl(ifp, cmd, data); break; } return (error); } static void hn_stop(struct hn_softc *sc) { struct ifnet *ifp = sc->hn_ifp; int i; HN_LOCK_ASSERT(sc); KASSERT(sc->hn_flags & HN_FLAG_SYNTH_ATTACHED, ("synthetic parts were not attached")); /* Clear RUNNING bit _before_ hn_suspend() */ atomic_clear_int(&ifp->if_drv_flags, IFF_DRV_RUNNING); hn_suspend(sc); /* Clear OACTIVE bit. */ atomic_clear_int(&ifp->if_drv_flags, IFF_DRV_OACTIVE); for (i = 0; i < sc->hn_tx_ring_inuse; ++i) sc->hn_tx_ring[i].hn_oactive = 0; } /* * FreeBSD transmit entry point */ static void hn_start(struct ifnet *ifp) { struct hn_softc *sc = ifp->if_softc; struct hn_tx_ring *txr = &sc->hn_tx_ring[0]; if (txr->hn_sched_tx) goto do_sched; if (mtx_trylock(&txr->hn_tx_lock)) { int sched; sched = hn_start_locked(txr, txr->hn_direct_tx_size); mtx_unlock(&txr->hn_tx_lock); if (!sched) return; } do_sched: taskqueue_enqueue(txr->hn_tx_taskq, &txr->hn_tx_task); } static void hn_start_txeof(struct hn_tx_ring *txr) { struct hn_softc *sc = txr->hn_sc; struct ifnet *ifp = sc->hn_ifp; KASSERT(txr == &sc->hn_tx_ring[0], ("not the first TX ring")); if (txr->hn_sched_tx) goto do_sched; if (mtx_trylock(&txr->hn_tx_lock)) { int sched; atomic_clear_int(&ifp->if_drv_flags, IFF_DRV_OACTIVE); sched = hn_start_locked(txr, txr->hn_direct_tx_size); mtx_unlock(&txr->hn_tx_lock); if (sched) { taskqueue_enqueue(txr->hn_tx_taskq, &txr->hn_tx_task); } } else { do_sched: /* * Release the OACTIVE earlier, with the hope, that * others could catch up. The task will clear the * flag again with the hn_tx_lock to avoid possible * races. */ atomic_clear_int(&ifp->if_drv_flags, IFF_DRV_OACTIVE); taskqueue_enqueue(txr->hn_tx_taskq, &txr->hn_txeof_task); } } static void hn_init_locked(struct hn_softc *sc) { struct ifnet *ifp = sc->hn_ifp; int i; HN_LOCK_ASSERT(sc); if ((sc->hn_flags & HN_FLAG_SYNTH_ATTACHED) == 0) return; if (ifp->if_drv_flags & IFF_DRV_RUNNING) return; /* TODO: add hn_rx_filter */ hn_rndis_set_rxfilter(sc, NDIS_PACKET_TYPE_PROMISCUOUS); /* Clear OACTIVE bit. */ atomic_clear_int(&ifp->if_drv_flags, IFF_DRV_OACTIVE); for (i = 0; i < sc->hn_tx_ring_inuse; ++i) sc->hn_tx_ring[i].hn_oactive = 0; /* Clear TX 'suspended' bit. */ hn_tx_resume(sc, sc->hn_tx_ring_inuse); /* Everything is ready; unleash! */ atomic_set_int(&ifp->if_drv_flags, IFF_DRV_RUNNING); /* TODO: check RNDIS link status. */ if_link_state_change(ifp, LINK_STATE_UP); } static void hn_init(void *xsc) { struct hn_softc *sc = xsc; HN_LOCK(sc); hn_init_locked(sc); HN_UNLOCK(sc); } #ifdef LATER /* * */ static void hn_watchdog(struct ifnet *ifp) { if_printf(ifp, "watchdog timeout -- resetting\n"); hn_init(ifp->if_softc); /* XXX */ if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); } #endif #if __FreeBSD_version >= 1100099 static int hn_lro_lenlim_sysctl(SYSCTL_HANDLER_ARGS) { struct hn_softc *sc = arg1; unsigned int lenlim; int error; lenlim = sc->hn_rx_ring[0].hn_lro.lro_length_lim; error = sysctl_handle_int(oidp, &lenlim, 0, req); if (error || req->newptr == NULL) return error; HN_LOCK(sc); if (lenlim < HN_LRO_LENLIM_MIN(sc->hn_ifp) || lenlim > TCP_LRO_LENGTH_MAX) { HN_UNLOCK(sc); return EINVAL; } hn_set_lro_lenlim(sc, lenlim); HN_UNLOCK(sc); return 0; } static int hn_lro_ackcnt_sysctl(SYSCTL_HANDLER_ARGS) { struct hn_softc *sc = arg1; int ackcnt, error, i; /* * lro_ackcnt_lim is append count limit, * +1 to turn it into aggregation limit. */ ackcnt = sc->hn_rx_ring[0].hn_lro.lro_ackcnt_lim + 1; error = sysctl_handle_int(oidp, &ackcnt, 0, req); if (error || req->newptr == NULL) return error; if (ackcnt < 2 || ackcnt > (TCP_LRO_ACKCNT_MAX + 1)) return EINVAL; /* * Convert aggregation limit back to append * count limit. */ --ackcnt; HN_LOCK(sc); for (i = 0; i < sc->hn_rx_ring_inuse; ++i) sc->hn_rx_ring[i].hn_lro.lro_ackcnt_lim = ackcnt; HN_UNLOCK(sc); return 0; } #endif static int hn_trust_hcsum_sysctl(SYSCTL_HANDLER_ARGS) { struct hn_softc *sc = arg1; int hcsum = arg2; int on, error, i; on = 0; if (sc->hn_rx_ring[0].hn_trust_hcsum & hcsum) on = 1; error = sysctl_handle_int(oidp, &on, 0, req); if (error || req->newptr == NULL) return error; HN_LOCK(sc); for (i = 0; i < sc->hn_rx_ring_inuse; ++i) { struct hn_rx_ring *rxr = &sc->hn_rx_ring[i]; if (on) rxr->hn_trust_hcsum |= hcsum; else rxr->hn_trust_hcsum &= ~hcsum; } HN_UNLOCK(sc); return 0; } static int hn_chim_size_sysctl(SYSCTL_HANDLER_ARGS) { struct hn_softc *sc = arg1; int chim_size, error; chim_size = sc->hn_tx_ring[0].hn_chim_size; error = sysctl_handle_int(oidp, &chim_size, 0, req); if (error || req->newptr == NULL) return error; if (chim_size > sc->hn_chim_szmax || chim_size <= 0) return EINVAL; HN_LOCK(sc); hn_set_chim_size(sc, chim_size); HN_UNLOCK(sc); return 0; } #if __FreeBSD_version < 1100095 static int hn_rx_stat_int_sysctl(SYSCTL_HANDLER_ARGS) { struct hn_softc *sc = arg1; int ofs = arg2, i, error; struct hn_rx_ring *rxr; uint64_t stat; stat = 0; for (i = 0; i < sc->hn_rx_ring_cnt; ++i) { rxr = &sc->hn_rx_ring[i]; stat += *((int *)((uint8_t *)rxr + ofs)); } error = sysctl_handle_64(oidp, &stat, 0, req); if (error || req->newptr == NULL) return error; /* Zero out this stat. */ for (i = 0; i < sc->hn_rx_ring_cnt; ++i) { rxr = &sc->hn_rx_ring[i]; *((int *)((uint8_t *)rxr + ofs)) = 0; } return 0; } #else static int hn_rx_stat_u64_sysctl(SYSCTL_HANDLER_ARGS) { struct hn_softc *sc = arg1; int ofs = arg2, i, error; struct hn_rx_ring *rxr; uint64_t stat; stat = 0; for (i = 0; i < sc->hn_rx_ring_inuse; ++i) { rxr = &sc->hn_rx_ring[i]; stat += *((uint64_t *)((uint8_t *)rxr + ofs)); } error = sysctl_handle_64(oidp, &stat, 0, req); if (error || req->newptr == NULL) return error; /* Zero out this stat. */ for (i = 0; i < sc->hn_rx_ring_inuse; ++i) { rxr = &sc->hn_rx_ring[i]; *((uint64_t *)((uint8_t *)rxr + ofs)) = 0; } return 0; } #endif static int hn_rx_stat_ulong_sysctl(SYSCTL_HANDLER_ARGS) { struct hn_softc *sc = arg1; int ofs = arg2, i, error; struct hn_rx_ring *rxr; u_long stat; stat = 0; for (i = 0; i < sc->hn_rx_ring_inuse; ++i) { rxr = &sc->hn_rx_ring[i]; stat += *((u_long *)((uint8_t *)rxr + ofs)); } error = sysctl_handle_long(oidp, &stat, 0, req); if (error || req->newptr == NULL) return error; /* Zero out this stat. */ for (i = 0; i < sc->hn_rx_ring_inuse; ++i) { rxr = &sc->hn_rx_ring[i]; *((u_long *)((uint8_t *)rxr + ofs)) = 0; } return 0; } static int hn_tx_stat_ulong_sysctl(SYSCTL_HANDLER_ARGS) { struct hn_softc *sc = arg1; int ofs = arg2, i, error; struct hn_tx_ring *txr; u_long stat; stat = 0; for (i = 0; i < sc->hn_tx_ring_inuse; ++i) { txr = &sc->hn_tx_ring[i]; stat += *((u_long *)((uint8_t *)txr + ofs)); } error = sysctl_handle_long(oidp, &stat, 0, req); if (error || req->newptr == NULL) return error; /* Zero out this stat. */ for (i = 0; i < sc->hn_tx_ring_inuse; ++i) { txr = &sc->hn_tx_ring[i]; *((u_long *)((uint8_t *)txr + ofs)) = 0; } return 0; } static int hn_tx_conf_int_sysctl(SYSCTL_HANDLER_ARGS) { struct hn_softc *sc = arg1; int ofs = arg2, i, error, conf; struct hn_tx_ring *txr; txr = &sc->hn_tx_ring[0]; conf = *((int *)((uint8_t *)txr + ofs)); error = sysctl_handle_int(oidp, &conf, 0, req); if (error || req->newptr == NULL) return error; HN_LOCK(sc); for (i = 0; i < sc->hn_tx_ring_inuse; ++i) { txr = &sc->hn_tx_ring[i]; *((int *)((uint8_t *)txr + ofs)) = conf; } HN_UNLOCK(sc); return 0; } static int hn_ndis_version_sysctl(SYSCTL_HANDLER_ARGS) { struct hn_softc *sc = arg1; char verstr[16]; snprintf(verstr, sizeof(verstr), "%u.%u", HN_NDIS_VERSION_MAJOR(sc->hn_ndis_ver), HN_NDIS_VERSION_MINOR(sc->hn_ndis_ver)); return sysctl_handle_string(oidp, verstr, sizeof(verstr), req); } static int hn_caps_sysctl(SYSCTL_HANDLER_ARGS) { struct hn_softc *sc = arg1; char caps_str[128]; uint32_t caps; HN_LOCK(sc); caps = sc->hn_caps; HN_UNLOCK(sc); snprintf(caps_str, sizeof(caps_str), "%b", caps, "\020" "\001VLAN" "\002MTU" "\003IPCS" "\004TCP4CS" "\005TCP6CS" "\006UDP4CS" "\007UDP6CS" "\010TSO4" "\011TSO6"); return sysctl_handle_string(oidp, caps_str, sizeof(caps_str), req); } static int hn_hwassist_sysctl(SYSCTL_HANDLER_ARGS) { struct hn_softc *sc = arg1; char assist_str[128]; uint32_t hwassist; HN_LOCK(sc); hwassist = sc->hn_ifp->if_hwassist; HN_UNLOCK(sc); snprintf(assist_str, sizeof(assist_str), "%b", hwassist, CSUM_BITS); return sysctl_handle_string(oidp, assist_str, sizeof(assist_str), req); } static int hn_rss_key_sysctl(SYSCTL_HANDLER_ARGS) { struct hn_softc *sc = arg1; int error; HN_LOCK(sc); error = SYSCTL_OUT(req, sc->hn_rss.rss_key, sizeof(sc->hn_rss.rss_key)); if (error || req->newptr == NULL) goto back; error = SYSCTL_IN(req, sc->hn_rss.rss_key, sizeof(sc->hn_rss.rss_key)); if (error) goto back; sc->hn_flags |= HN_FLAG_HAS_RSSKEY; if (sc->hn_rx_ring_inuse > 1) { error = hn_rss_reconfig(sc); } else { /* Not RSS capable, at least for now; just save the RSS key. */ error = 0; } back: HN_UNLOCK(sc); return (error); } static int hn_rss_ind_sysctl(SYSCTL_HANDLER_ARGS) { struct hn_softc *sc = arg1; int error; HN_LOCK(sc); error = SYSCTL_OUT(req, sc->hn_rss.rss_ind, sizeof(sc->hn_rss.rss_ind)); if (error || req->newptr == NULL) goto back; /* * Don't allow RSS indirect table change, if this interface is not * RSS capable currently. */ if (sc->hn_rx_ring_inuse == 1) { error = EOPNOTSUPP; goto back; } error = SYSCTL_IN(req, sc->hn_rss.rss_ind, sizeof(sc->hn_rss.rss_ind)); if (error) goto back; sc->hn_flags |= HN_FLAG_HAS_RSSIND; hn_rss_ind_fixup(sc, sc->hn_rx_ring_inuse); error = hn_rss_reconfig(sc); back: HN_UNLOCK(sc); return (error); } static int hn_check_iplen(const struct mbuf *m, int hoff) { const struct ip *ip; int len, iphlen, iplen; const struct tcphdr *th; int thoff; /* TCP data offset */ len = hoff + sizeof(struct ip); /* The packet must be at least the size of an IP header. */ if (m->m_pkthdr.len < len) return IPPROTO_DONE; /* The fixed IP header must reside completely in the first mbuf. */ if (m->m_len < len) return IPPROTO_DONE; ip = mtodo(m, hoff); /* Bound check the packet's stated IP header length. */ iphlen = ip->ip_hl << 2; if (iphlen < sizeof(struct ip)) /* minimum header length */ return IPPROTO_DONE; /* The full IP header must reside completely in the one mbuf. */ if (m->m_len < hoff + iphlen) return IPPROTO_DONE; iplen = ntohs(ip->ip_len); /* * Check that the amount of data in the buffers is as * at least much as the IP header would have us expect. */ if (m->m_pkthdr.len < hoff + iplen) return IPPROTO_DONE; /* * Ignore IP fragments. */ if (ntohs(ip->ip_off) & (IP_OFFMASK | IP_MF)) return IPPROTO_DONE; /* * The TCP/IP or UDP/IP header must be entirely contained within * the first fragment of a packet. */ switch (ip->ip_p) { case IPPROTO_TCP: if (iplen < iphlen + sizeof(struct tcphdr)) return IPPROTO_DONE; if (m->m_len < hoff + iphlen + sizeof(struct tcphdr)) return IPPROTO_DONE; th = (const struct tcphdr *)((const uint8_t *)ip + iphlen); thoff = th->th_off << 2; if (thoff < sizeof(struct tcphdr) || thoff + iphlen > iplen) return IPPROTO_DONE; if (m->m_len < hoff + iphlen + thoff) return IPPROTO_DONE; break; case IPPROTO_UDP: if (iplen < iphlen + sizeof(struct udphdr)) return IPPROTO_DONE; if (m->m_len < hoff + iphlen + sizeof(struct udphdr)) return IPPROTO_DONE; break; default: if (iplen < iphlen) return IPPROTO_DONE; break; } return ip->ip_p; } static int hn_create_rx_data(struct hn_softc *sc, int ring_cnt) { struct sysctl_oid_list *child; struct sysctl_ctx_list *ctx; device_t dev = sc->hn_dev; #if defined(INET) || defined(INET6) #if __FreeBSD_version >= 1100095 int lroent_cnt; #endif #endif int i; /* * Create RXBUF for reception. * * NOTE: * - It is shared by all channels. * - A large enough buffer is allocated, certain version of NVSes * may further limit the usable space. */ sc->hn_rxbuf = hyperv_dmamem_alloc(bus_get_dma_tag(dev), PAGE_SIZE, 0, NETVSC_RECEIVE_BUFFER_SIZE, &sc->hn_rxbuf_dma, BUS_DMA_WAITOK | BUS_DMA_ZERO); if (sc->hn_rxbuf == NULL) { device_printf(sc->hn_dev, "allocate rxbuf failed\n"); return (ENOMEM); } sc->hn_rx_ring_cnt = ring_cnt; sc->hn_rx_ring_inuse = sc->hn_rx_ring_cnt; sc->hn_rx_ring = malloc(sizeof(struct hn_rx_ring) * sc->hn_rx_ring_cnt, M_NETVSC, M_WAITOK | M_ZERO); #if defined(INET) || defined(INET6) #if __FreeBSD_version >= 1100095 lroent_cnt = hn_lro_entry_count; if (lroent_cnt < TCP_LRO_ENTRIES) lroent_cnt = TCP_LRO_ENTRIES; if (bootverbose) device_printf(dev, "LRO: entry count %d\n", lroent_cnt); #endif #endif /* INET || INET6 */ ctx = device_get_sysctl_ctx(dev); child = SYSCTL_CHILDREN(device_get_sysctl_tree(dev)); /* Create dev.hn.UNIT.rx sysctl tree */ sc->hn_rx_sysctl_tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "rx", CTLFLAG_RD | CTLFLAG_MPSAFE, 0, ""); for (i = 0; i < sc->hn_rx_ring_cnt; ++i) { struct hn_rx_ring *rxr = &sc->hn_rx_ring[i]; rxr->hn_br = hyperv_dmamem_alloc(bus_get_dma_tag(dev), PAGE_SIZE, 0, NETVSC_DEVICE_RING_BUFFER_SIZE + NETVSC_DEVICE_RING_BUFFER_SIZE, &rxr->hn_br_dma, BUS_DMA_WAITOK); if (rxr->hn_br == NULL) { device_printf(dev, "allocate bufring failed\n"); return (ENOMEM); } if (hn_trust_hosttcp) rxr->hn_trust_hcsum |= HN_TRUST_HCSUM_TCP; if (hn_trust_hostudp) rxr->hn_trust_hcsum |= HN_TRUST_HCSUM_UDP; if (hn_trust_hostip) rxr->hn_trust_hcsum |= HN_TRUST_HCSUM_IP; rxr->hn_ifp = sc->hn_ifp; if (i < sc->hn_tx_ring_cnt) rxr->hn_txr = &sc->hn_tx_ring[i]; rxr->hn_rdbuf = malloc(NETVSC_PACKET_SIZE, M_NETVSC, M_WAITOK); rxr->hn_rx_idx = i; rxr->hn_rxbuf = sc->hn_rxbuf; /* * Initialize LRO. */ #if defined(INET) || defined(INET6) #if __FreeBSD_version >= 1100095 tcp_lro_init_args(&rxr->hn_lro, sc->hn_ifp, lroent_cnt, hn_lro_mbufq_depth); #else tcp_lro_init(&rxr->hn_lro); rxr->hn_lro.ifp = sc->hn_ifp; #endif #if __FreeBSD_version >= 1100099 rxr->hn_lro.lro_length_lim = HN_LRO_LENLIM_DEF; rxr->hn_lro.lro_ackcnt_lim = HN_LRO_ACKCNT_DEF; #endif #endif /* INET || INET6 */ if (sc->hn_rx_sysctl_tree != NULL) { char name[16]; /* * Create per RX ring sysctl tree: * dev.hn.UNIT.rx.RINGID */ snprintf(name, sizeof(name), "%d", i); rxr->hn_rx_sysctl_tree = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(sc->hn_rx_sysctl_tree), OID_AUTO, name, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, ""); if (rxr->hn_rx_sysctl_tree != NULL) { SYSCTL_ADD_ULONG(ctx, SYSCTL_CHILDREN(rxr->hn_rx_sysctl_tree), OID_AUTO, "packets", CTLFLAG_RW, &rxr->hn_pkts, "# of packets received"); SYSCTL_ADD_ULONG(ctx, SYSCTL_CHILDREN(rxr->hn_rx_sysctl_tree), OID_AUTO, "rss_pkts", CTLFLAG_RW, &rxr->hn_rss_pkts, "# of packets w/ RSS info received"); } } } SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "lro_queued", CTLTYPE_U64 | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, __offsetof(struct hn_rx_ring, hn_lro.lro_queued), #if __FreeBSD_version < 1100095 hn_rx_stat_int_sysctl, #else hn_rx_stat_u64_sysctl, #endif "LU", "LRO queued"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "lro_flushed", CTLTYPE_U64 | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, __offsetof(struct hn_rx_ring, hn_lro.lro_flushed), #if __FreeBSD_version < 1100095 hn_rx_stat_int_sysctl, #else hn_rx_stat_u64_sysctl, #endif "LU", "LRO flushed"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "lro_tried", CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, __offsetof(struct hn_rx_ring, hn_lro_tried), hn_rx_stat_ulong_sysctl, "LU", "# of LRO tries"); #if __FreeBSD_version >= 1100099 SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "lro_length_lim", CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0, hn_lro_lenlim_sysctl, "IU", "Max # of data bytes to be aggregated by LRO"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "lro_ackcnt_lim", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0, hn_lro_ackcnt_sysctl, "I", "Max # of ACKs to be aggregated by LRO"); #endif SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "trust_hosttcp", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, HN_TRUST_HCSUM_TCP, hn_trust_hcsum_sysctl, "I", "Trust tcp segement verification on host side, " "when csum info is missing"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "trust_hostudp", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, HN_TRUST_HCSUM_UDP, hn_trust_hcsum_sysctl, "I", "Trust udp datagram verification on host side, " "when csum info is missing"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "trust_hostip", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, HN_TRUST_HCSUM_IP, hn_trust_hcsum_sysctl, "I", "Trust ip packet verification on host side, " "when csum info is missing"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "csum_ip", CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, __offsetof(struct hn_rx_ring, hn_csum_ip), hn_rx_stat_ulong_sysctl, "LU", "RXCSUM IP"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "csum_tcp", CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, __offsetof(struct hn_rx_ring, hn_csum_tcp), hn_rx_stat_ulong_sysctl, "LU", "RXCSUM TCP"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "csum_udp", CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, __offsetof(struct hn_rx_ring, hn_csum_udp), hn_rx_stat_ulong_sysctl, "LU", "RXCSUM UDP"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "csum_trusted", CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, __offsetof(struct hn_rx_ring, hn_csum_trusted), hn_rx_stat_ulong_sysctl, "LU", "# of packets that we trust host's csum verification"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "small_pkts", CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, __offsetof(struct hn_rx_ring, hn_small_pkts), hn_rx_stat_ulong_sysctl, "LU", "# of small packets received"); SYSCTL_ADD_INT(ctx, child, OID_AUTO, "rx_ring_cnt", CTLFLAG_RD, &sc->hn_rx_ring_cnt, 0, "# created RX rings"); SYSCTL_ADD_INT(ctx, child, OID_AUTO, "rx_ring_inuse", CTLFLAG_RD, &sc->hn_rx_ring_inuse, 0, "# used RX rings"); return (0); } static void hn_destroy_rx_data(struct hn_softc *sc) { int i; if (sc->hn_rxbuf != NULL) { hyperv_dmamem_free(&sc->hn_rxbuf_dma, sc->hn_rxbuf); sc->hn_rxbuf = NULL; } if (sc->hn_rx_ring_cnt == 0) return; for (i = 0; i < sc->hn_rx_ring_cnt; ++i) { struct hn_rx_ring *rxr = &sc->hn_rx_ring[i]; if (rxr->hn_br == NULL) continue; hyperv_dmamem_free(&rxr->hn_br_dma, rxr->hn_br); rxr->hn_br = NULL; #if defined(INET) || defined(INET6) tcp_lro_free(&rxr->hn_lro); #endif free(rxr->hn_rdbuf, M_NETVSC); } free(sc->hn_rx_ring, M_NETVSC); sc->hn_rx_ring = NULL; sc->hn_rx_ring_cnt = 0; sc->hn_rx_ring_inuse = 0; } static int hn_create_tx_ring(struct hn_softc *sc, int id) { struct hn_tx_ring *txr = &sc->hn_tx_ring[id]; device_t dev = sc->hn_dev; bus_dma_tag_t parent_dtag; int error, i; txr->hn_sc = sc; txr->hn_tx_idx = id; #ifndef HN_USE_TXDESC_BUFRING mtx_init(&txr->hn_txlist_spin, "hn txlist", NULL, MTX_SPIN); #endif mtx_init(&txr->hn_tx_lock, "hn tx", NULL, MTX_DEF); txr->hn_txdesc_cnt = HN_TX_DESC_CNT; txr->hn_txdesc = malloc(sizeof(struct hn_txdesc) * txr->hn_txdesc_cnt, M_NETVSC, M_WAITOK | M_ZERO); #ifndef HN_USE_TXDESC_BUFRING SLIST_INIT(&txr->hn_txlist); #else txr->hn_txdesc_br = buf_ring_alloc(txr->hn_txdesc_cnt, M_NETVSC, M_WAITOK, &txr->hn_tx_lock); #endif txr->hn_tx_taskq = sc->hn_tx_taskq; if (hn_use_if_start) { txr->hn_txeof = hn_start_txeof; TASK_INIT(&txr->hn_tx_task, 0, hn_start_taskfunc, txr); TASK_INIT(&txr->hn_txeof_task, 0, hn_start_txeof_taskfunc, txr); } else { int br_depth; txr->hn_txeof = hn_xmit_txeof; TASK_INIT(&txr->hn_tx_task, 0, hn_xmit_taskfunc, txr); TASK_INIT(&txr->hn_txeof_task, 0, hn_xmit_txeof_taskfunc, txr); br_depth = hn_get_txswq_depth(txr); txr->hn_mbuf_br = buf_ring_alloc(br_depth, M_NETVSC, M_WAITOK, &txr->hn_tx_lock); } txr->hn_direct_tx_size = hn_direct_tx_size; /* * Always schedule transmission instead of trying to do direct * transmission. This one gives the best performance so far. */ txr->hn_sched_tx = 1; parent_dtag = bus_get_dma_tag(dev); /* DMA tag for RNDIS packet messages. */ error = bus_dma_tag_create(parent_dtag, /* parent */ HN_RNDIS_PKT_ALIGN, /* alignment */ HN_RNDIS_PKT_BOUNDARY, /* boundary */ BUS_SPACE_MAXADDR, /* lowaddr */ BUS_SPACE_MAXADDR, /* highaddr */ NULL, NULL, /* filter, filterarg */ HN_RNDIS_PKT_LEN, /* maxsize */ 1, /* nsegments */ HN_RNDIS_PKT_LEN, /* maxsegsize */ 0, /* flags */ NULL, /* lockfunc */ NULL, /* lockfuncarg */ &txr->hn_tx_rndis_dtag); if (error) { device_printf(dev, "failed to create rndis dmatag\n"); return error; } /* DMA tag for data. */ error = bus_dma_tag_create(parent_dtag, /* parent */ 1, /* alignment */ HN_TX_DATA_BOUNDARY, /* boundary */ BUS_SPACE_MAXADDR, /* lowaddr */ BUS_SPACE_MAXADDR, /* highaddr */ NULL, NULL, /* filter, filterarg */ HN_TX_DATA_MAXSIZE, /* maxsize */ HN_TX_DATA_SEGCNT_MAX, /* nsegments */ HN_TX_DATA_SEGSIZE, /* maxsegsize */ 0, /* flags */ NULL, /* lockfunc */ NULL, /* lockfuncarg */ &txr->hn_tx_data_dtag); if (error) { device_printf(dev, "failed to create data dmatag\n"); return error; } for (i = 0; i < txr->hn_txdesc_cnt; ++i) { struct hn_txdesc *txd = &txr->hn_txdesc[i]; txd->txr = txr; /* * Allocate and load RNDIS packet message. */ error = bus_dmamem_alloc(txr->hn_tx_rndis_dtag, (void **)&txd->rndis_pkt, BUS_DMA_WAITOK | BUS_DMA_COHERENT | BUS_DMA_ZERO, &txd->rndis_pkt_dmap); if (error) { device_printf(dev, "failed to allocate rndis_packet_msg, %d\n", i); return error; } error = bus_dmamap_load(txr->hn_tx_rndis_dtag, txd->rndis_pkt_dmap, txd->rndis_pkt, HN_RNDIS_PKT_LEN, hyperv_dma_map_paddr, &txd->rndis_pkt_paddr, BUS_DMA_NOWAIT); if (error) { device_printf(dev, "failed to load rndis_packet_msg, %d\n", i); bus_dmamem_free(txr->hn_tx_rndis_dtag, txd->rndis_pkt, txd->rndis_pkt_dmap); return error; } /* DMA map for TX data. */ error = bus_dmamap_create(txr->hn_tx_data_dtag, 0, &txd->data_dmap); if (error) { device_printf(dev, "failed to allocate tx data dmamap\n"); bus_dmamap_unload(txr->hn_tx_rndis_dtag, txd->rndis_pkt_dmap); bus_dmamem_free(txr->hn_tx_rndis_dtag, txd->rndis_pkt, txd->rndis_pkt_dmap); return error; } /* All set, put it to list */ txd->flags |= HN_TXD_FLAG_ONLIST; #ifndef HN_USE_TXDESC_BUFRING SLIST_INSERT_HEAD(&txr->hn_txlist, txd, link); #else buf_ring_enqueue(txr->hn_txdesc_br, txd); #endif } txr->hn_txdesc_avail = txr->hn_txdesc_cnt; if (sc->hn_tx_sysctl_tree != NULL) { struct sysctl_oid_list *child; struct sysctl_ctx_list *ctx; char name[16]; /* * Create per TX ring sysctl tree: * dev.hn.UNIT.tx.RINGID */ ctx = device_get_sysctl_ctx(dev); child = SYSCTL_CHILDREN(sc->hn_tx_sysctl_tree); snprintf(name, sizeof(name), "%d", id); txr->hn_tx_sysctl_tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, name, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, ""); if (txr->hn_tx_sysctl_tree != NULL) { child = SYSCTL_CHILDREN(txr->hn_tx_sysctl_tree); SYSCTL_ADD_INT(ctx, child, OID_AUTO, "txdesc_avail", CTLFLAG_RD, &txr->hn_txdesc_avail, 0, "# of available TX descs"); if (!hn_use_if_start) { SYSCTL_ADD_INT(ctx, child, OID_AUTO, "oactive", CTLFLAG_RD, &txr->hn_oactive, 0, "over active"); } SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "packets", CTLFLAG_RW, &txr->hn_pkts, "# of packets transmitted"); } } return 0; } static void hn_txdesc_dmamap_destroy(struct hn_txdesc *txd) { struct hn_tx_ring *txr = txd->txr; KASSERT(txd->m == NULL, ("still has mbuf installed")); KASSERT((txd->flags & HN_TXD_FLAG_DMAMAP) == 0, ("still dma mapped")); bus_dmamap_unload(txr->hn_tx_rndis_dtag, txd->rndis_pkt_dmap); bus_dmamem_free(txr->hn_tx_rndis_dtag, txd->rndis_pkt, txd->rndis_pkt_dmap); bus_dmamap_destroy(txr->hn_tx_data_dtag, txd->data_dmap); } static void hn_destroy_tx_ring(struct hn_tx_ring *txr) { struct hn_txdesc *txd; if (txr->hn_txdesc == NULL) return; #ifndef HN_USE_TXDESC_BUFRING while ((txd = SLIST_FIRST(&txr->hn_txlist)) != NULL) { SLIST_REMOVE_HEAD(&txr->hn_txlist, link); hn_txdesc_dmamap_destroy(txd); } #else mtx_lock(&txr->hn_tx_lock); while ((txd = buf_ring_dequeue_sc(txr->hn_txdesc_br)) != NULL) hn_txdesc_dmamap_destroy(txd); mtx_unlock(&txr->hn_tx_lock); #endif if (txr->hn_tx_data_dtag != NULL) bus_dma_tag_destroy(txr->hn_tx_data_dtag); if (txr->hn_tx_rndis_dtag != NULL) bus_dma_tag_destroy(txr->hn_tx_rndis_dtag); #ifdef HN_USE_TXDESC_BUFRING buf_ring_free(txr->hn_txdesc_br, M_NETVSC); #endif free(txr->hn_txdesc, M_NETVSC); txr->hn_txdesc = NULL; if (txr->hn_mbuf_br != NULL) buf_ring_free(txr->hn_mbuf_br, M_NETVSC); #ifndef HN_USE_TXDESC_BUFRING mtx_destroy(&txr->hn_txlist_spin); #endif mtx_destroy(&txr->hn_tx_lock); } static int hn_create_tx_data(struct hn_softc *sc, int ring_cnt) { struct sysctl_oid_list *child; struct sysctl_ctx_list *ctx; int i; /* * Create TXBUF for chimney sending. * * NOTE: It is shared by all channels. */ sc->hn_chim = hyperv_dmamem_alloc(bus_get_dma_tag(sc->hn_dev), PAGE_SIZE, 0, NETVSC_SEND_BUFFER_SIZE, &sc->hn_chim_dma, BUS_DMA_WAITOK | BUS_DMA_ZERO); if (sc->hn_chim == NULL) { device_printf(sc->hn_dev, "allocate txbuf failed\n"); return (ENOMEM); } sc->hn_tx_ring_cnt = ring_cnt; sc->hn_tx_ring_inuse = sc->hn_tx_ring_cnt; sc->hn_tx_ring = malloc(sizeof(struct hn_tx_ring) * sc->hn_tx_ring_cnt, M_NETVSC, M_WAITOK | M_ZERO); ctx = device_get_sysctl_ctx(sc->hn_dev); child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->hn_dev)); /* Create dev.hn.UNIT.tx sysctl tree */ sc->hn_tx_sysctl_tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "tx", CTLFLAG_RD | CTLFLAG_MPSAFE, 0, ""); for (i = 0; i < sc->hn_tx_ring_cnt; ++i) { int error; error = hn_create_tx_ring(sc, i); if (error) return error; } SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "no_txdescs", CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, __offsetof(struct hn_tx_ring, hn_no_txdescs), hn_tx_stat_ulong_sysctl, "LU", "# of times short of TX descs"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "send_failed", CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, __offsetof(struct hn_tx_ring, hn_send_failed), hn_tx_stat_ulong_sysctl, "LU", "# of hyper-v sending failure"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "txdma_failed", CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, __offsetof(struct hn_tx_ring, hn_txdma_failed), hn_tx_stat_ulong_sysctl, "LU", "# of TX DMA failure"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "tx_collapsed", CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, __offsetof(struct hn_tx_ring, hn_tx_collapsed), hn_tx_stat_ulong_sysctl, "LU", "# of TX mbuf collapsed"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "tx_chimney", CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, __offsetof(struct hn_tx_ring, hn_tx_chimney), hn_tx_stat_ulong_sysctl, "LU", "# of chimney send"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "tx_chimney_tried", CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, __offsetof(struct hn_tx_ring, hn_tx_chimney_tried), hn_tx_stat_ulong_sysctl, "LU", "# of chimney send tries"); SYSCTL_ADD_INT(ctx, child, OID_AUTO, "txdesc_cnt", CTLFLAG_RD, &sc->hn_tx_ring[0].hn_txdesc_cnt, 0, "# of total TX descs"); SYSCTL_ADD_INT(ctx, child, OID_AUTO, "tx_chimney_max", CTLFLAG_RD, &sc->hn_chim_szmax, 0, "Chimney send packet size upper boundary"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "tx_chimney_size", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0, hn_chim_size_sysctl, "I", "Chimney send packet size limit"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "direct_tx_size", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, __offsetof(struct hn_tx_ring, hn_direct_tx_size), hn_tx_conf_int_sysctl, "I", "Size of the packet for direct transmission"); SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "sched_tx", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, __offsetof(struct hn_tx_ring, hn_sched_tx), hn_tx_conf_int_sysctl, "I", "Always schedule transmission " "instead of doing direct transmission"); SYSCTL_ADD_INT(ctx, child, OID_AUTO, "tx_ring_cnt", CTLFLAG_RD, &sc->hn_tx_ring_cnt, 0, "# created TX rings"); SYSCTL_ADD_INT(ctx, child, OID_AUTO, "tx_ring_inuse", CTLFLAG_RD, &sc->hn_tx_ring_inuse, 0, "# used TX rings"); return 0; } static void hn_set_chim_size(struct hn_softc *sc, int chim_size) { int i; for (i = 0; i < sc->hn_tx_ring_inuse; ++i) sc->hn_tx_ring[i].hn_chim_size = chim_size; } static void +hn_set_tso_maxsize(struct hn_softc *sc, int tso_maxlen, int mtu) +{ + struct ifnet *ifp = sc->hn_ifp; + int tso_minlen; + + if ((ifp->if_capabilities & (IFCAP_TSO4 | IFCAP_TSO6)) == 0) + return; + + KASSERT(sc->hn_ndis_tso_sgmin >= 2, + ("invalid NDIS tso sgmin %d", sc->hn_ndis_tso_sgmin)); + tso_minlen = sc->hn_ndis_tso_sgmin * mtu; + + KASSERT(sc->hn_ndis_tso_szmax >= tso_minlen && + sc->hn_ndis_tso_szmax <= IP_MAXPACKET, + ("invalid NDIS tso szmax %d", sc->hn_ndis_tso_szmax)); + + if (tso_maxlen < tso_minlen) + tso_maxlen = tso_minlen; + else if (tso_maxlen > IP_MAXPACKET) + tso_maxlen = IP_MAXPACKET; + if (tso_maxlen > sc->hn_ndis_tso_szmax) + tso_maxlen = sc->hn_ndis_tso_szmax; + ifp->if_hw_tsomax = tso_maxlen - (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN); + if (bootverbose) + if_printf(ifp, "TSO size max %u\n", ifp->if_hw_tsomax); +} + +static void hn_fixup_tx_data(struct hn_softc *sc) { uint64_t csum_assist; int i; hn_set_chim_size(sc, sc->hn_chim_szmax); if (hn_tx_chimney_size > 0 && hn_tx_chimney_size < sc->hn_chim_szmax) hn_set_chim_size(sc, hn_tx_chimney_size); csum_assist = 0; if (sc->hn_caps & HN_CAP_IPCS) csum_assist |= CSUM_IP; if (sc->hn_caps & HN_CAP_TCP4CS) csum_assist |= CSUM_IP_TCP; if (sc->hn_caps & HN_CAP_UDP4CS) csum_assist |= CSUM_IP_UDP; #ifdef notyet if (sc->hn_caps & HN_CAP_TCP6CS) csum_assist |= CSUM_IP6_TCP; if (sc->hn_caps & HN_CAP_UDP6CS) csum_assist |= CSUM_IP6_UDP; #endif for (i = 0; i < sc->hn_tx_ring_cnt; ++i) sc->hn_tx_ring[i].hn_csum_assist = csum_assist; if (sc->hn_ndis_ver >= HN_NDIS_VERSION_6_30) { /* Support HASHVAL pktinfo on TX path. */ for (i = 0; i < sc->hn_tx_ring_cnt; ++i) sc->hn_tx_ring[i].hn_tx_flags |= HN_TX_FLAG_HASHVAL; } } static void hn_destroy_tx_data(struct hn_softc *sc) { int i; if (sc->hn_chim != NULL) { hyperv_dmamem_free(&sc->hn_chim_dma, sc->hn_chim); sc->hn_chim = NULL; } if (sc->hn_tx_ring_cnt == 0) return; for (i = 0; i < sc->hn_tx_ring_cnt; ++i) hn_destroy_tx_ring(&sc->hn_tx_ring[i]); free(sc->hn_tx_ring, M_NETVSC); sc->hn_tx_ring = NULL; sc->hn_tx_ring_cnt = 0; sc->hn_tx_ring_inuse = 0; } static void hn_start_taskfunc(void *xtxr, int pending __unused) { struct hn_tx_ring *txr = xtxr; mtx_lock(&txr->hn_tx_lock); hn_start_locked(txr, 0); mtx_unlock(&txr->hn_tx_lock); } static void hn_start_txeof_taskfunc(void *xtxr, int pending __unused) { struct hn_tx_ring *txr = xtxr; mtx_lock(&txr->hn_tx_lock); atomic_clear_int(&txr->hn_sc->hn_ifp->if_drv_flags, IFF_DRV_OACTIVE); hn_start_locked(txr, 0); mtx_unlock(&txr->hn_tx_lock); } static int hn_xmit(struct hn_tx_ring *txr, int len) { struct hn_softc *sc = txr->hn_sc; struct ifnet *ifp = sc->hn_ifp; struct mbuf *m_head; mtx_assert(&txr->hn_tx_lock, MA_OWNED); KASSERT(hn_use_if_start == 0, ("hn_xmit is called, when if_start is enabled")); if (__predict_false(txr->hn_suspended)) return 0; if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || txr->hn_oactive) return 0; while ((m_head = drbr_peek(ifp, txr->hn_mbuf_br)) != NULL) { struct hn_txdesc *txd; int error; if (len > 0 && m_head->m_pkthdr.len > len) { /* * This sending could be time consuming; let callers * dispatch this packet sending (and sending of any * following up packets) to tx taskqueue. */ drbr_putback(ifp, txr->hn_mbuf_br, m_head); return 1; } txd = hn_txdesc_get(txr); if (txd == NULL) { txr->hn_no_txdescs++; drbr_putback(ifp, txr->hn_mbuf_br, m_head); txr->hn_oactive = 1; break; } error = hn_encap(txr, txd, &m_head); if (error) { /* Both txd and m_head are freed; discard */ drbr_advance(ifp, txr->hn_mbuf_br); continue; } error = hn_send_pkt(ifp, txr, txd); if (__predict_false(error)) { /* txd is freed, but m_head is not */ drbr_putback(ifp, txr->hn_mbuf_br, m_head); txr->hn_oactive = 1; break; } /* Sent */ drbr_advance(ifp, txr->hn_mbuf_br); } return 0; } static int hn_transmit(struct ifnet *ifp, struct mbuf *m) { struct hn_softc *sc = ifp->if_softc; struct hn_tx_ring *txr; int error, idx = 0; /* * Select the TX ring based on flowid */ if (M_HASHTYPE_GET(m) != M_HASHTYPE_NONE) idx = m->m_pkthdr.flowid % sc->hn_tx_ring_inuse; txr = &sc->hn_tx_ring[idx]; error = drbr_enqueue(ifp, txr->hn_mbuf_br, m); if (error) { if_inc_counter(ifp, IFCOUNTER_OQDROPS, 1); return error; } if (txr->hn_oactive) return 0; if (txr->hn_sched_tx) goto do_sched; if (mtx_trylock(&txr->hn_tx_lock)) { int sched; sched = hn_xmit(txr, txr->hn_direct_tx_size); mtx_unlock(&txr->hn_tx_lock); if (!sched) return 0; } do_sched: taskqueue_enqueue(txr->hn_tx_taskq, &txr->hn_tx_task); return 0; } static void hn_tx_ring_qflush(struct hn_tx_ring *txr) { struct mbuf *m; mtx_lock(&txr->hn_tx_lock); while ((m = buf_ring_dequeue_sc(txr->hn_mbuf_br)) != NULL) m_freem(m); mtx_unlock(&txr->hn_tx_lock); } static void hn_xmit_qflush(struct ifnet *ifp) { struct hn_softc *sc = ifp->if_softc; int i; for (i = 0; i < sc->hn_tx_ring_inuse; ++i) hn_tx_ring_qflush(&sc->hn_tx_ring[i]); if_qflush(ifp); } static void hn_xmit_txeof(struct hn_tx_ring *txr) { if (txr->hn_sched_tx) goto do_sched; if (mtx_trylock(&txr->hn_tx_lock)) { int sched; txr->hn_oactive = 0; sched = hn_xmit(txr, txr->hn_direct_tx_size); mtx_unlock(&txr->hn_tx_lock); if (sched) { taskqueue_enqueue(txr->hn_tx_taskq, &txr->hn_tx_task); } } else { do_sched: /* * Release the oactive earlier, with the hope, that * others could catch up. The task will clear the * oactive again with the hn_tx_lock to avoid possible * races. */ txr->hn_oactive = 0; taskqueue_enqueue(txr->hn_tx_taskq, &txr->hn_txeof_task); } } static void hn_xmit_taskfunc(void *xtxr, int pending __unused) { struct hn_tx_ring *txr = xtxr; mtx_lock(&txr->hn_tx_lock); hn_xmit(txr, 0); mtx_unlock(&txr->hn_tx_lock); } static void hn_xmit_txeof_taskfunc(void *xtxr, int pending __unused) { struct hn_tx_ring *txr = xtxr; mtx_lock(&txr->hn_tx_lock); txr->hn_oactive = 0; hn_xmit(txr, 0); mtx_unlock(&txr->hn_tx_lock); } static int hn_chan_attach(struct hn_softc *sc, struct vmbus_channel *chan) { struct vmbus_chan_br cbr; struct hn_rx_ring *rxr; struct hn_tx_ring *txr = NULL; int idx, error; idx = vmbus_chan_subidx(chan); /* * Link this channel to RX/TX ring. */ KASSERT(idx >= 0 && idx < sc->hn_rx_ring_inuse, ("invalid channel index %d, should > 0 && < %d", idx, sc->hn_rx_ring_inuse)); rxr = &sc->hn_rx_ring[idx]; KASSERT((rxr->hn_rx_flags & HN_RX_FLAG_ATTACHED) == 0, ("RX ring %d already attached", idx)); rxr->hn_rx_flags |= HN_RX_FLAG_ATTACHED; if (bootverbose) { if_printf(sc->hn_ifp, "link RX ring %d to chan%u\n", idx, vmbus_chan_id(chan)); } if (idx < sc->hn_tx_ring_inuse) { txr = &sc->hn_tx_ring[idx]; KASSERT((txr->hn_tx_flags & HN_TX_FLAG_ATTACHED) == 0, ("TX ring %d already attached", idx)); txr->hn_tx_flags |= HN_TX_FLAG_ATTACHED; txr->hn_chan = chan; if (bootverbose) { if_printf(sc->hn_ifp, "link TX ring %d to chan%u\n", idx, vmbus_chan_id(chan)); } } /* Bind this channel to a proper CPU. */ vmbus_chan_cpu_set(chan, (sc->hn_cpu + idx) % mp_ncpus); /* * Open this channel */ cbr.cbr = rxr->hn_br; cbr.cbr_paddr = rxr->hn_br_dma.hv_paddr; cbr.cbr_txsz = NETVSC_DEVICE_RING_BUFFER_SIZE; cbr.cbr_rxsz = NETVSC_DEVICE_RING_BUFFER_SIZE; error = vmbus_chan_open_br(chan, &cbr, NULL, 0, hn_chan_callback, rxr); if (error) { if_printf(sc->hn_ifp, "open chan%u failed: %d\n", vmbus_chan_id(chan), error); rxr->hn_rx_flags &= ~HN_RX_FLAG_ATTACHED; if (txr != NULL) txr->hn_tx_flags &= ~HN_TX_FLAG_ATTACHED; } return (error); } static void hn_chan_detach(struct hn_softc *sc, struct vmbus_channel *chan) { struct hn_rx_ring *rxr; int idx; idx = vmbus_chan_subidx(chan); /* * Link this channel to RX/TX ring. */ KASSERT(idx >= 0 && idx < sc->hn_rx_ring_inuse, ("invalid channel index %d, should > 0 && < %d", idx, sc->hn_rx_ring_inuse)); rxr = &sc->hn_rx_ring[idx]; KASSERT((rxr->hn_rx_flags & HN_RX_FLAG_ATTACHED), ("RX ring %d is not attached", idx)); rxr->hn_rx_flags &= ~HN_RX_FLAG_ATTACHED; if (idx < sc->hn_tx_ring_inuse) { struct hn_tx_ring *txr = &sc->hn_tx_ring[idx]; KASSERT((txr->hn_tx_flags & HN_TX_FLAG_ATTACHED), ("TX ring %d is not attached attached", idx)); txr->hn_tx_flags &= ~HN_TX_FLAG_ATTACHED; } /* * Close this channel. * * NOTE: * Channel closing does _not_ destroy the target channel. */ vmbus_chan_close(chan); } static int hn_attach_subchans(struct hn_softc *sc) { struct vmbus_channel **subchans; int subchan_cnt = sc->hn_rx_ring_inuse - 1; int i, error = 0; if (subchan_cnt == 0) return (0); /* Attach the sub-channels. */ subchans = vmbus_subchan_get(sc->hn_prichan, subchan_cnt); for (i = 0; i < subchan_cnt; ++i) { error = hn_chan_attach(sc, subchans[i]); if (error) break; } vmbus_subchan_rel(subchans, subchan_cnt); if (error) { if_printf(sc->hn_ifp, "sub-channels attach failed: %d\n", error); } else { if (bootverbose) { if_printf(sc->hn_ifp, "%d sub-channels attached\n", subchan_cnt); } } return (error); } static void hn_detach_allchans(struct hn_softc *sc) { struct vmbus_channel **subchans; int subchan_cnt = sc->hn_rx_ring_inuse - 1; int i; if (subchan_cnt == 0) goto back; /* Detach the sub-channels. */ subchans = vmbus_subchan_get(sc->hn_prichan, subchan_cnt); for (i = 0; i < subchan_cnt; ++i) hn_chan_detach(sc, subchans[i]); vmbus_subchan_rel(subchans, subchan_cnt); back: /* * Detach the primary channel, _after_ all sub-channels * are detached. */ hn_chan_detach(sc, sc->hn_prichan); /* Wait for sub-channels to be destroyed, if any. */ vmbus_subchan_drain(sc->hn_prichan); #ifdef INVARIANTS for (i = 0; i < sc->hn_rx_ring_cnt; ++i) { KASSERT((sc->hn_rx_ring[i].hn_rx_flags & HN_RX_FLAG_ATTACHED) == 0, ("%dth RX ring is still attached", i)); } for (i = 0; i < sc->hn_tx_ring_cnt; ++i) { KASSERT((sc->hn_tx_ring[i].hn_tx_flags & HN_TX_FLAG_ATTACHED) == 0, ("%dth TX ring is still attached", i)); } #endif } static int hn_synth_alloc_subchans(struct hn_softc *sc, int *nsubch) { struct vmbus_channel **subchans; int nchan, rxr_cnt, error; nchan = *nsubch + 1; if (sc->hn_ndis_ver < HN_NDIS_VERSION_6_30 || nchan == 1) { /* * Either RSS is not supported, or multiple RX/TX rings * are not requested. */ *nsubch = 0; return (0); } /* * Get RSS capabilities, e.g. # of RX rings, and # of indirect * table entries. */ error = hn_rndis_get_rsscaps(sc, &rxr_cnt); if (error) { /* No RSS; this is benign. */ *nsubch = 0; return (0); } if (bootverbose) { if_printf(sc->hn_ifp, "RX rings offered %u, requested %d\n", rxr_cnt, nchan); } if (nchan > rxr_cnt) nchan = rxr_cnt; if (nchan == 1) { if_printf(sc->hn_ifp, "only 1 channel is supported, no vRSS\n"); *nsubch = 0; return (0); } /* * Allocate sub-channels from NVS. */ *nsubch = nchan - 1; error = hn_nvs_alloc_subchans(sc, nsubch); if (error || *nsubch == 0) { /* Failed to allocate sub-channels. */ *nsubch = 0; return (0); } /* * Wait for all sub-channels to become ready before moving on. */ subchans = vmbus_subchan_get(sc->hn_prichan, *nsubch); vmbus_subchan_rel(subchans, *nsubch); return (0); } static int hn_synth_attach(struct hn_softc *sc, int mtu) { struct ndis_rssprm_toeplitz *rss = &sc->hn_rss; int error, nsubch, nchan, i; uint32_t old_caps; KASSERT((sc->hn_flags & HN_FLAG_SYNTH_ATTACHED) == 0, ("synthetic parts were attached")); /* Save capabilities for later verification. */ old_caps = sc->hn_caps; sc->hn_caps = 0; /* * Attach the primary channel _before_ attaching NVS and RNDIS. */ error = hn_chan_attach(sc, sc->hn_prichan); if (error) return (error); /* * Attach NVS. */ error = hn_nvs_attach(sc, mtu); if (error) return (error); /* * Attach RNDIS _after_ NVS is attached. */ - error = hn_rndis_attach(sc); + error = hn_rndis_attach(sc, mtu); if (error) return (error); /* * Make sure capabilities are not changed. */ if (device_is_attached(sc->hn_dev) && old_caps != sc->hn_caps) { if_printf(sc->hn_ifp, "caps mismatch old 0x%08x, new 0x%08x\n", old_caps, sc->hn_caps); /* Restore old capabilities and abort. */ sc->hn_caps = old_caps; return ENXIO; } /* * Allocate sub-channels for multi-TX/RX rings. * * NOTE: * The # of RX rings that can be used is equivalent to the # of * channels to be requested. */ nsubch = sc->hn_rx_ring_cnt - 1; error = hn_synth_alloc_subchans(sc, &nsubch); if (error) return (error); nchan = nsubch + 1; if (nchan == 1) { /* Only the primary channel can be used; done */ goto back; } /* * Configure RSS key and indirect table _after_ all sub-channels * are allocated. */ if ((sc->hn_flags & HN_FLAG_HAS_RSSKEY) == 0) { /* * RSS key is not set yet; set it to the default RSS key. */ if (bootverbose) if_printf(sc->hn_ifp, "setup default RSS key\n"); memcpy(rss->rss_key, hn_rss_key_default, sizeof(rss->rss_key)); sc->hn_flags |= HN_FLAG_HAS_RSSKEY; } if ((sc->hn_flags & HN_FLAG_HAS_RSSIND) == 0) { /* * RSS indirect table is not set yet; set it up in round- * robin fashion. */ if (bootverbose) { if_printf(sc->hn_ifp, "setup default RSS indirect " "table\n"); } /* TODO: Take ndis_rss_caps.ndis_nind into account. */ for (i = 0; i < NDIS_HASH_INDCNT; ++i) rss->rss_ind[i] = i % nchan; sc->hn_flags |= HN_FLAG_HAS_RSSIND; } else { /* * # of usable channels may be changed, so we have to * make sure that all entries in RSS indirect table * are valid. */ hn_rss_ind_fixup(sc, nchan); } error = hn_rndis_conf_rss(sc, NDIS_RSS_FLAG_NONE); if (error) { /* * Failed to configure RSS key or indirect table; only * the primary channel can be used. */ nchan = 1; } back: /* * Set the # of TX/RX rings that could be used according to * the # of channels that NVS offered. */ hn_set_ring_inuse(sc, nchan); /* * Attach the sub-channels, if any. */ error = hn_attach_subchans(sc); if (error) return (error); sc->hn_flags |= HN_FLAG_SYNTH_ATTACHED; return (0); } /* * NOTE: * The interface must have been suspended though hn_suspend(), before * this function get called. */ static void hn_synth_detach(struct hn_softc *sc) { HN_LOCK_ASSERT(sc); KASSERT(sc->hn_flags & HN_FLAG_SYNTH_ATTACHED, ("synthetic parts were not attached")); /* Detach the RNDIS first. */ hn_rndis_detach(sc); /* Detach NVS. */ hn_nvs_detach(sc); /* Detach all of the channels. */ hn_detach_allchans(sc); sc->hn_flags &= ~HN_FLAG_SYNTH_ATTACHED; } static void hn_set_ring_inuse(struct hn_softc *sc, int ring_cnt) { KASSERT(ring_cnt > 0 && ring_cnt <= sc->hn_rx_ring_cnt, ("invalid ring count %d", ring_cnt)); if (sc->hn_tx_ring_cnt > ring_cnt) sc->hn_tx_ring_inuse = ring_cnt; else sc->hn_tx_ring_inuse = sc->hn_tx_ring_cnt; sc->hn_rx_ring_inuse = ring_cnt; if (bootverbose) { if_printf(sc->hn_ifp, "%d TX ring, %d RX ring\n", sc->hn_tx_ring_inuse, sc->hn_rx_ring_inuse); } } static void hn_rx_drain(struct vmbus_channel *chan) { while (!vmbus_chan_rx_empty(chan) || !vmbus_chan_tx_empty(chan)) pause("waitch", 1); vmbus_chan_intr_drain(chan); } static void hn_suspend(struct hn_softc *sc) { struct vmbus_channel **subch = NULL; int i, nsubch; HN_LOCK_ASSERT(sc); /* * Suspend TX. */ for (i = 0; i < sc->hn_tx_ring_inuse; ++i) { struct hn_tx_ring *txr = &sc->hn_tx_ring[i]; mtx_lock(&txr->hn_tx_lock); txr->hn_suspended = 1; mtx_unlock(&txr->hn_tx_lock); /* No one is able send more packets now. */ /* Wait for all pending sends to finish. */ while (hn_tx_ring_pending(txr)) pause("hnwtx", 1 /* 1 tick */); taskqueue_drain(txr->hn_tx_taskq, &txr->hn_tx_task); taskqueue_drain(txr->hn_tx_taskq, &txr->hn_txeof_task); } /* * Disable RX by clearing RX filter. */ hn_rndis_set_rxfilter(sc, 0); /* * Give RNDIS enough time to flush all pending data packets. */ pause("waitrx", (200 * hz) / 1000); /* * Drain RX/TX bufrings and interrupts. */ nsubch = sc->hn_rx_ring_inuse - 1; if (nsubch > 0) subch = vmbus_subchan_get(sc->hn_prichan, nsubch); if (subch != NULL) { for (i = 0; i < nsubch; ++i) hn_rx_drain(subch[i]); } hn_rx_drain(sc->hn_prichan); if (subch != NULL) vmbus_subchan_rel(subch, nsubch); } static void hn_tx_resume(struct hn_softc *sc, int tx_ring_cnt) { int i; KASSERT(tx_ring_cnt <= sc->hn_tx_ring_cnt, ("invalid TX ring count %d", tx_ring_cnt)); for (i = 0; i < tx_ring_cnt; ++i) { struct hn_tx_ring *txr = &sc->hn_tx_ring[i]; mtx_lock(&txr->hn_tx_lock); txr->hn_suspended = 0; mtx_unlock(&txr->hn_tx_lock); } } static void hn_resume(struct hn_softc *sc) { int i; HN_LOCK_ASSERT(sc); /* * Re-enable RX. * TODO: add hn_rx_filter. */ hn_rndis_set_rxfilter(sc, NDIS_PACKET_TYPE_PROMISCUOUS); /* * Make sure to clear suspend status on "all" TX rings, * since hn_tx_ring_inuse can be changed after hn_suspend(). */ hn_tx_resume(sc, sc->hn_tx_ring_cnt); if (!hn_use_if_start) { /* * Flush unused drbrs, since hn_tx_ring_inuse may be * reduced. */ for (i = sc->hn_tx_ring_inuse; i < sc->hn_tx_ring_cnt; ++i) hn_tx_ring_qflush(&sc->hn_tx_ring[i]); } /* * Kick start TX. */ for (i = 0; i < sc->hn_tx_ring_inuse; ++i) { struct hn_tx_ring *txr = &sc->hn_tx_ring[i]; /* * Use txeof task, so that any pending oactive can be * cleared properly. */ taskqueue_enqueue(txr->hn_tx_taskq, &txr->hn_txeof_task); } } static void hn_nvs_handle_notify(struct hn_softc *sc, const struct vmbus_chanpkt_hdr *pkt) { const struct hn_nvs_hdr *hdr; if (VMBUS_CHANPKT_DATALEN(pkt) < sizeof(*hdr)) { if_printf(sc->hn_ifp, "invalid nvs notify\n"); return; } hdr = VMBUS_CHANPKT_CONST_DATA(pkt); if (hdr->nvs_type == HN_NVS_TYPE_TXTBL_NOTE) { /* Useless; ignore */ return; } if_printf(sc->hn_ifp, "got notify, nvs type %u\n", hdr->nvs_type); } static void hn_nvs_handle_comp(struct hn_softc *sc, struct vmbus_channel *chan, const struct vmbus_chanpkt_hdr *pkt) { struct hn_send_ctx *sndc; sndc = (struct hn_send_ctx *)(uintptr_t)pkt->cph_xactid; sndc->hn_cb(sndc, sc, chan, VMBUS_CHANPKT_CONST_DATA(pkt), VMBUS_CHANPKT_DATALEN(pkt)); /* * NOTE: * 'sndc' CAN NOT be accessed anymore, since it can be freed by * its callback. */ } static void hn_nvs_handle_rxbuf(struct hn_softc *sc, struct hn_rx_ring *rxr, struct vmbus_channel *chan, const struct vmbus_chanpkt_hdr *pkthdr) { const struct vmbus_chanpkt_rxbuf *pkt; const struct hn_nvs_hdr *nvs_hdr; int count, i, hlen; if (__predict_false(VMBUS_CHANPKT_DATALEN(pkthdr) < sizeof(*nvs_hdr))) { if_printf(rxr->hn_ifp, "invalid nvs RNDIS\n"); return; } nvs_hdr = VMBUS_CHANPKT_CONST_DATA(pkthdr); /* Make sure that this is a RNDIS message. */ if (__predict_false(nvs_hdr->nvs_type != HN_NVS_TYPE_RNDIS)) { if_printf(rxr->hn_ifp, "nvs type %u, not RNDIS\n", nvs_hdr->nvs_type); return; } hlen = VMBUS_CHANPKT_GETLEN(pkthdr->cph_hlen); if (__predict_false(hlen < sizeof(*pkt))) { if_printf(rxr->hn_ifp, "invalid rxbuf chanpkt\n"); return; } pkt = (const struct vmbus_chanpkt_rxbuf *)pkthdr; if (__predict_false(pkt->cp_rxbuf_id != HN_NVS_RXBUF_SIG)) { if_printf(rxr->hn_ifp, "invalid rxbuf_id 0x%08x\n", pkt->cp_rxbuf_id); return; } count = pkt->cp_rxbuf_cnt; if (__predict_false(hlen < __offsetof(struct vmbus_chanpkt_rxbuf, cp_rxbuf[count]))) { if_printf(rxr->hn_ifp, "invalid rxbuf_cnt %d\n", count); return; } /* Each range represents 1 RNDIS pkt that contains 1 Ethernet frame */ for (i = 0; i < count; ++i) { int ofs, len; ofs = pkt->cp_rxbuf[i].rb_ofs; len = pkt->cp_rxbuf[i].rb_len; if (__predict_false(ofs + len > NETVSC_RECEIVE_BUFFER_SIZE)) { if_printf(rxr->hn_ifp, "%dth RNDIS msg overflow rxbuf, " "ofs %d, len %d\n", i, ofs, len); continue; } hv_rf_on_receive(sc, rxr, rxr->hn_rxbuf + ofs, len); } /* * Moved completion call back here so that all received * messages (not just data messages) will trigger a response * message back to the host. */ hn_nvs_ack_rxbuf(chan, pkt->cp_hdr.cph_xactid); } /* * Net VSC on receive completion * * Send a receive completion packet to RNDIS device (ie NetVsp) */ static void hn_nvs_ack_rxbuf(struct vmbus_channel *chan, uint64_t tid) { struct hn_nvs_rndis_ack ack; int retries = 0; int ret = 0; ack.nvs_type = HN_NVS_TYPE_RNDIS_ACK; ack.nvs_status = HN_NVS_STATUS_OK; retry_send_cmplt: /* Send the completion */ ret = vmbus_chan_send(chan, VMBUS_CHANPKT_TYPE_COMP, VMBUS_CHANPKT_FLAG_NONE, &ack, sizeof(ack), tid); if (ret == 0) { /* success */ /* no-op */ } else if (ret == EAGAIN) { /* no more room... wait a bit and attempt to retry 3 times */ retries++; if (retries < 4) { DELAY(100); goto retry_send_cmplt; } } } static void hn_chan_callback(struct vmbus_channel *chan, void *xrxr) { struct hn_rx_ring *rxr = xrxr; struct hn_softc *sc = rxr->hn_ifp->if_softc; void *buffer; int bufferlen = NETVSC_PACKET_SIZE; buffer = rxr->hn_rdbuf; do { struct vmbus_chanpkt_hdr *pkt = buffer; uint32_t bytes_rxed; int ret; bytes_rxed = bufferlen; ret = vmbus_chan_recv_pkt(chan, pkt, &bytes_rxed); if (ret == 0) { switch (pkt->cph_type) { case VMBUS_CHANPKT_TYPE_COMP: hn_nvs_handle_comp(sc, chan, pkt); break; case VMBUS_CHANPKT_TYPE_RXBUF: hn_nvs_handle_rxbuf(sc, rxr, chan, pkt); break; case VMBUS_CHANPKT_TYPE_INBAND: hn_nvs_handle_notify(sc, pkt); break; default: if_printf(rxr->hn_ifp, "unknown chan pkt %u\n", pkt->cph_type); break; } } else if (ret == ENOBUFS) { /* Handle large packet */ if (bufferlen > NETVSC_PACKET_SIZE) { free(buffer, M_NETVSC); buffer = NULL; } /* alloc new buffer */ buffer = malloc(bytes_rxed, M_NETVSC, M_NOWAIT); if (buffer == NULL) { if_printf(rxr->hn_ifp, "hv_cb malloc buffer failed, len=%u\n", bytes_rxed); bufferlen = 0; break; } bufferlen = bytes_rxed; } else { /* No more packets */ break; } } while (1); if (bufferlen > NETVSC_PACKET_SIZE) free(buffer, M_NETVSC); hv_rf_channel_rollup(rxr, rxr->hn_txr); } static void hn_tx_taskq_create(void *arg __unused) { if (!hn_share_tx_taskq) return; hn_tx_taskq = taskqueue_create("hn_tx", M_WAITOK, taskqueue_thread_enqueue, &hn_tx_taskq); if (hn_bind_tx_taskq >= 0) { int cpu = hn_bind_tx_taskq; cpuset_t cpu_set; if (cpu > mp_ncpus - 1) cpu = mp_ncpus - 1; CPU_SETOF(cpu, &cpu_set); taskqueue_start_threads_cpuset(&hn_tx_taskq, 1, PI_NET, &cpu_set, "hn tx"); } else { taskqueue_start_threads(&hn_tx_taskq, 1, PI_NET, "hn tx"); } } SYSINIT(hn_txtq_create, SI_SUB_DRIVERS, SI_ORDER_FIRST, hn_tx_taskq_create, NULL); static void hn_tx_taskq_destroy(void *arg __unused) { if (hn_tx_taskq != NULL) taskqueue_free(hn_tx_taskq); } SYSUNINIT(hn_txtq_destroy, SI_SUB_DRIVERS, SI_ORDER_FIRST, hn_tx_taskq_destroy, NULL); static device_method_t netvsc_methods[] = { /* Device interface */ DEVMETHOD(device_probe, netvsc_probe), DEVMETHOD(device_attach, netvsc_attach), DEVMETHOD(device_detach, netvsc_detach), DEVMETHOD(device_shutdown, netvsc_shutdown), { 0, 0 } }; static driver_t netvsc_driver = { NETVSC_DEVNAME, netvsc_methods, sizeof(struct hn_softc) }; static devclass_t netvsc_devclass; DRIVER_MODULE(hn, vmbus, netvsc_driver, netvsc_devclass, 0, 0); MODULE_VERSION(hn, 1); MODULE_DEPEND(hn, vmbus, 1, 1, 1); Index: head/sys/dev/hyperv/netvsc/hv_rndis_filter.c =================================================================== --- head/sys/dev/hyperv/netvsc/hv_rndis_filter.c (revision 306936) +++ head/sys/dev/hyperv/netvsc/hv_rndis_filter.c (revision 306937) @@ -1,1221 +1,1265 @@ /*- * Copyright (c) 2009-2012,2016 Microsoft Corp. * Copyright (c) 2010-2012 Citrix Inc. * Copyright (c) 2012 NetApp Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice unmodified, this list of conditions, and the following * disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include +#include +#include #include #include #include #include #include #include #include #include #include #include #include #include #define HV_RF_RECVINFO_VLAN 0x1 #define HV_RF_RECVINFO_CSUM 0x2 #define HV_RF_RECVINFO_HASHINF 0x4 #define HV_RF_RECVINFO_HASHVAL 0x8 #define HV_RF_RECVINFO_ALL \ (HV_RF_RECVINFO_VLAN | \ HV_RF_RECVINFO_CSUM | \ HV_RF_RECVINFO_HASHINF | \ HV_RF_RECVINFO_HASHVAL) #define HN_RNDIS_RID_COMPAT_MASK 0xffff #define HN_RNDIS_RID_COMPAT_MAX HN_RNDIS_RID_COMPAT_MASK #define HN_RNDIS_XFER_SIZE 2048 #define HN_NDIS_TXCSUM_CAP_IP4 \ (NDIS_TXCSUM_CAP_IP4 | NDIS_TXCSUM_CAP_IP4OPT) #define HN_NDIS_TXCSUM_CAP_TCP4 \ (NDIS_TXCSUM_CAP_TCP4 | NDIS_TXCSUM_CAP_TCP4OPT) #define HN_NDIS_TXCSUM_CAP_TCP6 \ (NDIS_TXCSUM_CAP_TCP6 | NDIS_TXCSUM_CAP_TCP6OPT | \ NDIS_TXCSUM_CAP_IP6EXT) #define HN_NDIS_TXCSUM_CAP_UDP6 \ (NDIS_TXCSUM_CAP_UDP6 | NDIS_TXCSUM_CAP_IP6EXT) +#define HN_NDIS_LSOV2_CAP_IP6 \ + (NDIS_LSOV2_CAP_IP6EXT | NDIS_LSOV2_CAP_TCP6OPT) /* * Forward declarations */ static void hv_rf_receive_indicate_status(struct hn_softc *sc, const void *data, int dlen); static void hv_rf_receive_data(struct hn_rx_ring *rxr, const void *data, int dlen); static int hn_rndis_query(struct hn_softc *sc, uint32_t oid, const void *idata, size_t idlen, void *odata, size_t *odlen0); static int hn_rndis_query2(struct hn_softc *sc, uint32_t oid, const void *idata, size_t idlen, void *odata, size_t *odlen0, size_t min_odlen); static int hn_rndis_set(struct hn_softc *sc, uint32_t oid, const void *data, size_t dlen); -static int hn_rndis_conf_offload(struct hn_softc *sc); +static int hn_rndis_conf_offload(struct hn_softc *sc, int mtu); static int hn_rndis_query_hwcaps(struct hn_softc *sc, struct ndis_offload *caps); static __inline uint32_t hn_rndis_rid(struct hn_softc *sc) { uint32_t rid; again: rid = atomic_fetchadd_int(&sc->hn_rndis_rid, 1); if (rid == 0) goto again; /* Use upper 16 bits for non-compat RNDIS messages. */ return ((rid & 0xffff) << 16); } void * hn_rndis_pktinfo_append(struct rndis_packet_msg *pkt, size_t pktsize, size_t pi_dlen, uint32_t pi_type) { const size_t pi_size = HN_RNDIS_PKTINFO_SIZE(pi_dlen); struct rndis_pktinfo *pi; KASSERT((pi_size & RNDIS_PACKET_MSG_OFFSET_ALIGNMASK) == 0, ("unaligned pktinfo size %zu, pktinfo dlen %zu", pi_size, pi_dlen)); /* * Per-packet-info does not move; it only grows. * * NOTE: * rm_pktinfooffset in this phase counts from the beginning * of rndis_packet_msg. */ KASSERT(pkt->rm_pktinfooffset + pkt->rm_pktinfolen + pi_size <= pktsize, ("%u pktinfo overflows RNDIS packet msg", pi_type)); pi = (struct rndis_pktinfo *)((uint8_t *)pkt + pkt->rm_pktinfooffset + pkt->rm_pktinfolen); pkt->rm_pktinfolen += pi_size; pi->rm_size = pi_size; pi->rm_type = pi_type; pi->rm_pktinfooffset = RNDIS_PKTINFO_OFFSET; /* Data immediately follow per-packet-info. */ pkt->rm_dataoffset += pi_size; /* Update RNDIS packet msg length */ pkt->rm_len += pi_size; return (pi->rm_data); } /* * RNDIS filter receive indicate status */ static void hv_rf_receive_indicate_status(struct hn_softc *sc, const void *data, int dlen) { const struct rndis_status_msg *msg; if (dlen < sizeof(*msg)) { if_printf(sc->hn_ifp, "invalid RNDIS status\n"); return; } msg = data; switch (msg->rm_status) { case RNDIS_STATUS_MEDIA_CONNECT: netvsc_linkstatus_callback(sc, 1); break; case RNDIS_STATUS_MEDIA_DISCONNECT: netvsc_linkstatus_callback(sc, 0); break; case RNDIS_STATUS_TASK_OFFLOAD_CURRENT_CONFIG: /* Not really useful; ignore. */ break; case RNDIS_STATUS_NETWORK_CHANGE: /* TODO */ if_printf(sc->hn_ifp, "network changed\n"); break; default: /* TODO: */ if_printf(sc->hn_ifp, "unknown RNDIS status 0x%08x\n", msg->rm_status); break; } } static int hn_rndis_rxinfo(const void *info_data, int info_dlen, struct hn_recvinfo *info) { const struct rndis_pktinfo *pi = info_data; uint32_t mask = 0; while (info_dlen != 0) { const void *data; uint32_t dlen; if (__predict_false(info_dlen < sizeof(*pi))) return (EINVAL); if (__predict_false(info_dlen < pi->rm_size)) return (EINVAL); info_dlen -= pi->rm_size; if (__predict_false(pi->rm_size & RNDIS_PKTINFO_SIZE_ALIGNMASK)) return (EINVAL); if (__predict_false(pi->rm_size < pi->rm_pktinfooffset)) return (EINVAL); dlen = pi->rm_size - pi->rm_pktinfooffset; data = pi->rm_data; switch (pi->rm_type) { case NDIS_PKTINFO_TYPE_VLAN: if (__predict_false(dlen < NDIS_VLAN_INFO_SIZE)) return (EINVAL); info->vlan_info = *((const uint32_t *)data); mask |= HV_RF_RECVINFO_VLAN; break; case NDIS_PKTINFO_TYPE_CSUM: if (__predict_false(dlen < NDIS_RXCSUM_INFO_SIZE)) return (EINVAL); info->csum_info = *((const uint32_t *)data); mask |= HV_RF_RECVINFO_CSUM; break; case HN_NDIS_PKTINFO_TYPE_HASHVAL: if (__predict_false(dlen < HN_NDIS_HASH_VALUE_SIZE)) return (EINVAL); info->hash_value = *((const uint32_t *)data); mask |= HV_RF_RECVINFO_HASHVAL; break; case HN_NDIS_PKTINFO_TYPE_HASHINF: if (__predict_false(dlen < HN_NDIS_HASH_INFO_SIZE)) return (EINVAL); info->hash_info = *((const uint32_t *)data); mask |= HV_RF_RECVINFO_HASHINF; break; default: goto next; } if (mask == HV_RF_RECVINFO_ALL) { /* All found; done */ break; } 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); } static __inline bool hn_rndis_check_overlap(int off, int len, int check_off, int check_len) { if (off < check_off) { if (__predict_true(off + len <= check_off)) return (false); } else if (off > check_off) { if (__predict_true(check_off + check_len <= off)) return (false); } return (true); } /* * RNDIS filter receive data */ static void hv_rf_receive_data(struct hn_rx_ring *rxr, const void *data, int dlen) { const struct rndis_packet_msg *pkt; struct hn_recvinfo info; int data_off, pktinfo_off, data_len, pktinfo_len; /* * Check length. */ if (__predict_false(dlen < sizeof(*pkt))) { if_printf(rxr->hn_ifp, "invalid RNDIS packet msg\n"); return; } pkt = data; if (__predict_false(dlen < pkt->rm_len)) { if_printf(rxr->hn_ifp, "truncated RNDIS packet msg, " "dlen %d, msglen %u\n", dlen, pkt->rm_len); return; } if (__predict_false(pkt->rm_len < pkt->rm_datalen + pkt->rm_oobdatalen + pkt->rm_pktinfolen)) { if_printf(rxr->hn_ifp, "invalid RNDIS packet msglen, " "msglen %u, data %u, oob %u, pktinfo %u\n", pkt->rm_len, pkt->rm_datalen, pkt->rm_oobdatalen, pkt->rm_pktinfolen); return; } if (__predict_false(pkt->rm_datalen == 0)) { if_printf(rxr->hn_ifp, "invalid RNDIS packet msg, no data\n"); return; } /* * Check offests. */ #define IS_OFFSET_INVALID(ofs) \ ((ofs) < RNDIS_PACKET_MSG_OFFSET_MIN || \ ((ofs) & RNDIS_PACKET_MSG_OFFSET_ALIGNMASK)) /* XXX Hyper-V does not meet data offset alignment requirement */ if (__predict_false(pkt->rm_dataoffset < RNDIS_PACKET_MSG_OFFSET_MIN)) { if_printf(rxr->hn_ifp, "invalid RNDIS packet msg, " "data offset %u\n", pkt->rm_dataoffset); return; } if (__predict_false(pkt->rm_oobdataoffset > 0 && IS_OFFSET_INVALID(pkt->rm_oobdataoffset))) { if_printf(rxr->hn_ifp, "invalid RNDIS packet msg, " "oob offset %u\n", pkt->rm_oobdataoffset); return; } if (__predict_true(pkt->rm_pktinfooffset > 0) && __predict_false(IS_OFFSET_INVALID(pkt->rm_pktinfooffset))) { if_printf(rxr->hn_ifp, "invalid RNDIS packet msg, " "pktinfo offset %u\n", pkt->rm_pktinfooffset); return; } #undef IS_OFFSET_INVALID data_off = RNDIS_PACKET_MSG_OFFSET_ABS(pkt->rm_dataoffset); data_len = pkt->rm_datalen; pktinfo_off = RNDIS_PACKET_MSG_OFFSET_ABS(pkt->rm_pktinfooffset); pktinfo_len = pkt->rm_pktinfolen; /* * Check OOB coverage. */ if (__predict_false(pkt->rm_oobdatalen != 0)) { int oob_off, oob_len; if_printf(rxr->hn_ifp, "got oobdata\n"); oob_off = RNDIS_PACKET_MSG_OFFSET_ABS(pkt->rm_oobdataoffset); oob_len = pkt->rm_oobdatalen; if (__predict_false(oob_off + oob_len > pkt->rm_len)) { if_printf(rxr->hn_ifp, "invalid RNDIS packet msg, " "oob overflow, msglen %u, oob abs %d len %d\n", pkt->rm_len, oob_off, oob_len); return; } /* * Check against data. */ if (hn_rndis_check_overlap(oob_off, oob_len, data_off, data_len)) { if_printf(rxr->hn_ifp, "invalid RNDIS packet msg, " "oob overlaps data, oob abs %d len %d, " "data abs %d len %d\n", oob_off, oob_len, data_off, data_len); return; } /* * Check against pktinfo. */ if (pktinfo_len != 0 && hn_rndis_check_overlap(oob_off, oob_len, pktinfo_off, pktinfo_len)) { if_printf(rxr->hn_ifp, "invalid RNDIS packet msg, " "oob overlaps pktinfo, oob abs %d len %d, " "pktinfo abs %d len %d\n", oob_off, oob_len, pktinfo_off, pktinfo_len); return; } } /* * Check per-packet-info coverage and find useful per-packet-info. */ info.vlan_info = HN_NDIS_VLAN_INFO_INVALID; info.csum_info = HN_NDIS_RXCSUM_INFO_INVALID; info.hash_info = HN_NDIS_HASH_INFO_INVALID; if (__predict_true(pktinfo_len != 0)) { bool overlap; int error; if (__predict_false(pktinfo_off + pktinfo_len > pkt->rm_len)) { if_printf(rxr->hn_ifp, "invalid RNDIS packet msg, " "pktinfo overflow, msglen %u, " "pktinfo abs %d len %d\n", pkt->rm_len, pktinfo_off, pktinfo_len); return; } /* * Check packet info coverage. */ overlap = hn_rndis_check_overlap(pktinfo_off, pktinfo_len, data_off, data_len); if (__predict_false(overlap)) { if_printf(rxr->hn_ifp, "invalid RNDIS packet msg, " "pktinfo overlap data, pktinfo abs %d len %d, " "data abs %d len %d\n", pktinfo_off, pktinfo_len, data_off, data_len); return; } /* * Find useful per-packet-info. */ error = hn_rndis_rxinfo(((const uint8_t *)pkt) + pktinfo_off, pktinfo_len, &info); if (__predict_false(error)) { if_printf(rxr->hn_ifp, "invalid RNDIS packet msg " "pktinfo\n"); return; } } if (__predict_false(data_off + data_len > pkt->rm_len)) { if_printf(rxr->hn_ifp, "invalid RNDIS packet msg, " "data overflow, msglen %u, data abs %d len %d\n", pkt->rm_len, data_off, data_len); return; } hn_rxpkt(rxr, ((const uint8_t *)pkt) + data_off, data_len, &info); } /* * RNDIS filter on receive */ void hv_rf_on_receive(struct hn_softc *sc, struct hn_rx_ring *rxr, const void *data, int dlen) { const struct rndis_comp_hdr *comp; const struct rndis_msghdr *hdr; if (__predict_false(dlen < sizeof(*hdr))) { if_printf(rxr->hn_ifp, "invalid RNDIS msg\n"); return; } hdr = data; switch (hdr->rm_type) { case REMOTE_NDIS_PACKET_MSG: hv_rf_receive_data(rxr, data, dlen); break; case REMOTE_NDIS_INITIALIZE_CMPLT: case REMOTE_NDIS_QUERY_CMPLT: case REMOTE_NDIS_SET_CMPLT: case REMOTE_NDIS_KEEPALIVE_CMPLT: /* unused */ if (dlen < sizeof(*comp)) { if_printf(rxr->hn_ifp, "invalid RNDIS cmplt\n"); return; } comp = data; KASSERT(comp->rm_rid > HN_RNDIS_RID_COMPAT_MAX, ("invalid RNDIS rid 0x%08x\n", comp->rm_rid)); vmbus_xact_ctx_wakeup(sc->hn_xact, comp, dlen); break; case REMOTE_NDIS_INDICATE_STATUS_MSG: hv_rf_receive_indicate_status(sc, data, dlen); break; case REMOTE_NDIS_RESET_CMPLT: /* * Reset completed, no rid. * * NOTE: * RESET is not issued by hn(4), so this message should * _not_ be observed. */ if_printf(rxr->hn_ifp, "RESET cmplt received\n"); break; default: if_printf(rxr->hn_ifp, "unknown RNDIS msg 0x%x\n", hdr->rm_type); break; } } int hn_rndis_get_eaddr(struct hn_softc *sc, uint8_t *eaddr) { size_t eaddr_len; int error; eaddr_len = ETHER_ADDR_LEN; error = hn_rndis_query(sc, OID_802_3_PERMANENT_ADDRESS, NULL, 0, eaddr, &eaddr_len); if (error) return (error); if (eaddr_len != ETHER_ADDR_LEN) { if_printf(sc->hn_ifp, "invalid eaddr len %zu\n", eaddr_len); return (EINVAL); } return (0); } int hn_rndis_get_linkstatus(struct hn_softc *sc, uint32_t *link_status) { size_t size; int error; size = sizeof(*link_status); error = hn_rndis_query(sc, OID_GEN_MEDIA_CONNECT_STATUS, NULL, 0, link_status, &size); if (error) return (error); if (size != sizeof(uint32_t)) { if_printf(sc->hn_ifp, "invalid link status len %zu\n", size); return (EINVAL); } return (0); } static const void * hn_rndis_xact_exec1(struct hn_softc *sc, struct vmbus_xact *xact, size_t reqlen, struct hn_send_ctx *sndc, size_t *comp_len) { struct vmbus_gpa gpa[HN_XACT_REQ_PGCNT]; int gpa_cnt, error; bus_addr_t paddr; KASSERT(reqlen <= HN_XACT_REQ_SIZE && reqlen > 0, ("invalid request length %zu", reqlen)); /* * Setup the SG list. */ paddr = vmbus_xact_req_paddr(xact); KASSERT((paddr & PAGE_MASK) == 0, ("vmbus xact request is not page aligned 0x%jx", (uintmax_t)paddr)); for (gpa_cnt = 0; gpa_cnt < HN_XACT_REQ_PGCNT; ++gpa_cnt) { int len = PAGE_SIZE; if (reqlen == 0) break; if (reqlen < len) len = reqlen; gpa[gpa_cnt].gpa_page = atop(paddr) + gpa_cnt; gpa[gpa_cnt].gpa_len = len; gpa[gpa_cnt].gpa_ofs = 0; reqlen -= len; } KASSERT(reqlen == 0, ("still have %zu request data left", reqlen)); /* * Send this RNDIS control message and wait for its completion * message. */ vmbus_xact_activate(xact); error = hv_nv_on_send(sc->hn_prichan, HN_NVS_RNDIS_MTYPE_CTRL, sndc, gpa, gpa_cnt); if (error) { vmbus_xact_deactivate(xact); if_printf(sc->hn_ifp, "RNDIS ctrl send failed: %d\n", error); return (NULL); } return (vmbus_xact_wait(xact, comp_len)); } static const void * hn_rndis_xact_execute(struct hn_softc *sc, struct vmbus_xact *xact, uint32_t rid, size_t reqlen, size_t *comp_len0, uint32_t comp_type) { const struct rndis_comp_hdr *comp; size_t comp_len, min_complen = *comp_len0; KASSERT(rid > HN_RNDIS_RID_COMPAT_MAX, ("invalid rid %u\n", rid)); KASSERT(min_complen >= sizeof(*comp), ("invalid minimum complete len %zu", min_complen)); /* * Execute the xact setup by the caller. */ comp = hn_rndis_xact_exec1(sc, xact, reqlen, &hn_send_ctx_none, &comp_len); if (comp == NULL) return (NULL); /* * Check this RNDIS complete message. */ if (comp_len < min_complen) { if (comp_len >= sizeof(*comp)) { /* rm_status field is valid */ if_printf(sc->hn_ifp, "invalid RNDIS comp len %zu, " "status 0x%08x\n", comp_len, comp->rm_status); } else { if_printf(sc->hn_ifp, "invalid RNDIS comp len %zu\n", comp_len); } return (NULL); } if (comp->rm_len < min_complen) { if_printf(sc->hn_ifp, "invalid RNDIS comp msglen %u\n", comp->rm_len); return (NULL); } if (comp->rm_type != comp_type) { if_printf(sc->hn_ifp, "unexpected RNDIS comp 0x%08x, " "expect 0x%08x\n", comp->rm_type, comp_type); return (NULL); } if (comp->rm_rid != rid) { if_printf(sc->hn_ifp, "RNDIS comp rid mismatch %u, " "expect %u\n", comp->rm_rid, rid); return (NULL); } /* All pass! */ *comp_len0 = comp_len; return (comp); } static int hn_rndis_query(struct hn_softc *sc, uint32_t oid, const void *idata, size_t idlen, void *odata, size_t *odlen0) { return (hn_rndis_query2(sc, oid, idata, idlen, odata, odlen0, *odlen0)); } static int hn_rndis_query2(struct hn_softc *sc, uint32_t oid, const void *idata, size_t idlen, void *odata, size_t *odlen0, size_t min_odlen) { struct rndis_query_req *req; const struct rndis_query_comp *comp; struct vmbus_xact *xact; size_t reqlen, odlen = *odlen0, comp_len; int error, ofs; uint32_t rid; reqlen = sizeof(*req) + idlen; xact = vmbus_xact_get(sc->hn_xact, reqlen); if (xact == NULL) { if_printf(sc->hn_ifp, "no xact for RNDIS query 0x%08x\n", oid); return (ENXIO); } rid = hn_rndis_rid(sc); req = vmbus_xact_req_data(xact); req->rm_type = REMOTE_NDIS_QUERY_MSG; req->rm_len = reqlen; req->rm_rid = rid; req->rm_oid = oid; /* * XXX * This is _not_ RNDIS Spec conforming: * "This MUST be set to 0 when there is no input data * associated with the OID." * * If this field was set to 0 according to the RNDIS Spec, * Hyper-V would set non-SUCCESS status in the query * completion. */ req->rm_infobufoffset = RNDIS_QUERY_REQ_INFOBUFOFFSET; if (idlen > 0) { req->rm_infobuflen = idlen; /* Input data immediately follows RNDIS query. */ memcpy(req + 1, idata, idlen); } comp_len = sizeof(*comp) + min_odlen; comp = hn_rndis_xact_execute(sc, xact, rid, reqlen, &comp_len, REMOTE_NDIS_QUERY_CMPLT); if (comp == NULL) { if_printf(sc->hn_ifp, "exec RNDIS query 0x%08x failed\n", oid); error = EIO; goto done; } if (comp->rm_status != RNDIS_STATUS_SUCCESS) { if_printf(sc->hn_ifp, "RNDIS query 0x%08x failed: " "status 0x%08x\n", oid, comp->rm_status); error = EIO; goto done; } if (comp->rm_infobuflen == 0 || comp->rm_infobufoffset == 0) { /* No output data! */ if_printf(sc->hn_ifp, "RNDIS query 0x%08x, no data\n", oid); *odlen0 = 0; error = 0; goto done; } /* * Check output data length and offset. */ /* ofs is the offset from the beginning of comp. */ ofs = RNDIS_QUERY_COMP_INFOBUFOFFSET_ABS(comp->rm_infobufoffset); if (ofs < sizeof(*comp) || ofs + comp->rm_infobuflen > comp_len) { if_printf(sc->hn_ifp, "RNDIS query invalid comp ib off/len, " "%u/%u\n", comp->rm_infobufoffset, comp->rm_infobuflen); error = EINVAL; goto done; } /* * Save output data. */ if (comp->rm_infobuflen < odlen) odlen = comp->rm_infobuflen; memcpy(odata, ((const uint8_t *)comp) + ofs, odlen); *odlen0 = odlen; error = 0; done: vmbus_xact_put(xact); return (error); } int hn_rndis_get_rsscaps(struct hn_softc *sc, int *rxr_cnt) { struct ndis_rss_caps in, caps; size_t caps_len; int error; /* * Only NDIS 6.30+ is supported. */ KASSERT(sc->hn_ndis_ver >= HN_NDIS_VERSION_6_30, ("NDIS 6.30+ is required, NDIS version 0x%08x", sc->hn_ndis_ver)); *rxr_cnt = 0; memset(&in, 0, sizeof(in)); in.ndis_hdr.ndis_type = NDIS_OBJTYPE_RSS_CAPS; in.ndis_hdr.ndis_rev = NDIS_RSS_CAPS_REV_2; in.ndis_hdr.ndis_size = NDIS_RSS_CAPS_SIZE; caps_len = NDIS_RSS_CAPS_SIZE; error = hn_rndis_query(sc, OID_GEN_RECEIVE_SCALE_CAPABILITIES, &in, NDIS_RSS_CAPS_SIZE, &caps, &caps_len); if (error) return (error); if (caps_len < NDIS_RSS_CAPS_SIZE_6_0) { if_printf(sc->hn_ifp, "invalid NDIS RSS caps len %zu", caps_len); return (EINVAL); } if (caps.ndis_nrxr == 0) { if_printf(sc->hn_ifp, "0 RX rings!?\n"); return (EINVAL); } *rxr_cnt = caps.ndis_nrxr; if (caps_len == NDIS_RSS_CAPS_SIZE) { if (bootverbose) { if_printf(sc->hn_ifp, "RSS indirect table size %u\n", caps.ndis_nind); } } return (0); } static int hn_rndis_set(struct hn_softc *sc, uint32_t oid, const void *data, size_t dlen) { struct rndis_set_req *req; const struct rndis_set_comp *comp; struct vmbus_xact *xact; size_t reqlen, comp_len; uint32_t rid; int error; KASSERT(dlen > 0, ("invalid dlen %zu", dlen)); reqlen = sizeof(*req) + dlen; xact = vmbus_xact_get(sc->hn_xact, reqlen); if (xact == NULL) { if_printf(sc->hn_ifp, "no xact for RNDIS set 0x%08x\n", oid); return (ENXIO); } rid = hn_rndis_rid(sc); req = vmbus_xact_req_data(xact); req->rm_type = REMOTE_NDIS_SET_MSG; req->rm_len = reqlen; req->rm_rid = rid; req->rm_oid = oid; req->rm_infobuflen = dlen; req->rm_infobufoffset = RNDIS_SET_REQ_INFOBUFOFFSET; /* Data immediately follows RNDIS set. */ memcpy(req + 1, data, dlen); comp_len = sizeof(*comp); comp = hn_rndis_xact_execute(sc, xact, rid, reqlen, &comp_len, REMOTE_NDIS_SET_CMPLT); if (comp == NULL) { if_printf(sc->hn_ifp, "exec RNDIS set 0x%08x failed\n", oid); error = EIO; goto done; } if (comp->rm_status != RNDIS_STATUS_SUCCESS) { if_printf(sc->hn_ifp, "RNDIS set 0x%08x failed: " "status 0x%08x\n", oid, comp->rm_status); error = EIO; goto done; } error = 0; done: vmbus_xact_put(xact); return (error); } static int -hn_rndis_conf_offload(struct hn_softc *sc) +hn_rndis_conf_offload(struct hn_softc *sc, int mtu) { struct ndis_offload hwcaps; struct ndis_offload_params params; uint32_t caps = 0; size_t paramsz; - int error; + int error, tso_maxsz, tso_minsg; error = hn_rndis_query_hwcaps(sc, &hwcaps); if (error) { if_printf(sc->hn_ifp, "hwcaps query failed: %d\n", error); return (error); } /* NOTE: 0 means "no change" */ memset(¶ms, 0, sizeof(params)); params.ndis_hdr.ndis_type = NDIS_OBJTYPE_DEFAULT; if (sc->hn_ndis_ver < HN_NDIS_VERSION_6_30) { params.ndis_hdr.ndis_rev = NDIS_OFFLOAD_PARAMS_REV_2; paramsz = NDIS_OFFLOAD_PARAMS_SIZE_6_1; } else { params.ndis_hdr.ndis_rev = NDIS_OFFLOAD_PARAMS_REV_3; paramsz = NDIS_OFFLOAD_PARAMS_SIZE; } params.ndis_hdr.ndis_size = paramsz; - /* TSO */ + /* + * TSO4/TSO6 setup. + */ + tso_maxsz = IP_MAXPACKET; + tso_minsg = 2; if (hwcaps.ndis_lsov2.ndis_ip4_encap & NDIS_OFFLOAD_ENCAP_8023) { caps |= HN_CAP_TSO4; params.ndis_lsov2_ip4 = NDIS_OFFLOAD_LSOV2_ON; - /* TODO: tso_max */ + + if (hwcaps.ndis_lsov2.ndis_ip4_maxsz < tso_maxsz) + tso_maxsz = hwcaps.ndis_lsov2.ndis_ip4_maxsz; + if (hwcaps.ndis_lsov2.ndis_ip4_minsg > tso_minsg) + tso_minsg = hwcaps.ndis_lsov2.ndis_ip4_minsg; } - if (hwcaps.ndis_lsov2.ndis_ip6_encap & NDIS_OFFLOAD_ENCAP_8023) { + if ((hwcaps.ndis_lsov2.ndis_ip6_encap & NDIS_OFFLOAD_ENCAP_8023) && + (hwcaps.ndis_lsov2.ndis_ip6_opts & HN_NDIS_LSOV2_CAP_IP6) == + HN_NDIS_LSOV2_CAP_IP6) { #ifdef notyet caps |= HN_CAP_TSO6; params.ndis_lsov2_ip6 = NDIS_OFFLOAD_LSOV2_ON; + + if (hwcaps.ndis_lsov2.ndis_ip6_maxsz < tso_maxsz) + tso_maxsz = hwcaps.ndis_lsov2.ndis_ip6_maxsz; + if (hwcaps.ndis_lsov2.ndis_ip6_minsg > tso_minsg) + tso_minsg = hwcaps.ndis_lsov2.ndis_ip6_minsg; #endif - /* TODO: tso_max */ } + sc->hn_ndis_tso_szmax = 0; + sc->hn_ndis_tso_sgmin = 0; + if (caps & (HN_CAP_TSO4 | HN_CAP_TSO6)) { + KASSERT(tso_maxsz <= IP_MAXPACKET, + ("invalid NDIS TSO maxsz %d", tso_maxsz)); + KASSERT(tso_minsg >= 2, + ("invalid NDIS TSO minsg %d", tso_minsg)); + if (tso_maxsz < tso_minsg * mtu) { + if_printf(sc->hn_ifp, "invalid NDIS TSO config: " + "maxsz %d, minsg %d, mtu %d; " + "disable TSO4 and TSO6\n", + tso_maxsz, tso_minsg, mtu); + caps &= ~(HN_CAP_TSO4 | HN_CAP_TSO6); + params.ndis_lsov2_ip4 = NDIS_OFFLOAD_LSOV2_OFF; + params.ndis_lsov2_ip6 = NDIS_OFFLOAD_LSOV2_OFF; + } else { + sc->hn_ndis_tso_szmax = tso_maxsz; + sc->hn_ndis_tso_sgmin = tso_minsg; + if (bootverbose) { + if_printf(sc->hn_ifp, "NDIS TSO " + "szmax %d sgmin %d\n", + sc->hn_ndis_tso_szmax, + sc->hn_ndis_tso_sgmin); + } + } + } /* IPv4 checksum */ if ((hwcaps.ndis_csum.ndis_ip4_txcsum & HN_NDIS_TXCSUM_CAP_IP4) == HN_NDIS_TXCSUM_CAP_IP4) { caps |= HN_CAP_IPCS; params.ndis_ip4csum = NDIS_OFFLOAD_PARAM_TX; } if (hwcaps.ndis_csum.ndis_ip4_rxcsum & NDIS_RXCSUM_CAP_IP4) { if (params.ndis_ip4csum == NDIS_OFFLOAD_PARAM_TX) params.ndis_ip4csum = NDIS_OFFLOAD_PARAM_TXRX; else params.ndis_ip4csum = NDIS_OFFLOAD_PARAM_RX; } /* TCP4 checksum */ if ((hwcaps.ndis_csum.ndis_ip4_txcsum & HN_NDIS_TXCSUM_CAP_TCP4) == HN_NDIS_TXCSUM_CAP_TCP4) { caps |= HN_CAP_TCP4CS; params.ndis_tcp4csum = NDIS_OFFLOAD_PARAM_TX; } if (hwcaps.ndis_csum.ndis_ip4_rxcsum & NDIS_RXCSUM_CAP_TCP4) { if (params.ndis_tcp4csum == NDIS_OFFLOAD_PARAM_TX) params.ndis_tcp4csum = NDIS_OFFLOAD_PARAM_TXRX; else params.ndis_tcp4csum = NDIS_OFFLOAD_PARAM_RX; } /* UDP4 checksum */ if (hwcaps.ndis_csum.ndis_ip4_txcsum & NDIS_TXCSUM_CAP_UDP4) { caps |= HN_CAP_UDP4CS; params.ndis_udp4csum = NDIS_OFFLOAD_PARAM_TX; } if (hwcaps.ndis_csum.ndis_ip4_rxcsum & NDIS_RXCSUM_CAP_UDP4) { if (params.ndis_udp4csum == NDIS_OFFLOAD_PARAM_TX) params.ndis_udp4csum = NDIS_OFFLOAD_PARAM_TXRX; else params.ndis_udp4csum = NDIS_OFFLOAD_PARAM_RX; } /* TCP6 checksum */ if ((hwcaps.ndis_csum.ndis_ip6_txcsum & HN_NDIS_TXCSUM_CAP_TCP6) == HN_NDIS_TXCSUM_CAP_TCP6) { caps |= HN_CAP_TCP6CS; params.ndis_tcp6csum = NDIS_OFFLOAD_PARAM_TX; } if (hwcaps.ndis_csum.ndis_ip6_rxcsum & NDIS_RXCSUM_CAP_TCP6) { if (params.ndis_tcp6csum == NDIS_OFFLOAD_PARAM_TX) params.ndis_tcp6csum = NDIS_OFFLOAD_PARAM_TXRX; else params.ndis_tcp6csum = NDIS_OFFLOAD_PARAM_RX; } /* UDP6 checksum */ if ((hwcaps.ndis_csum.ndis_ip6_txcsum & HN_NDIS_TXCSUM_CAP_UDP6) == HN_NDIS_TXCSUM_CAP_UDP6) { caps |= HN_CAP_UDP6CS; params.ndis_udp6csum = NDIS_OFFLOAD_PARAM_TX; } if (hwcaps.ndis_csum.ndis_ip6_rxcsum & NDIS_RXCSUM_CAP_UDP6) { if (params.ndis_udp6csum == NDIS_OFFLOAD_PARAM_TX) params.ndis_udp6csum = NDIS_OFFLOAD_PARAM_TXRX; else params.ndis_udp6csum = NDIS_OFFLOAD_PARAM_RX; } if (bootverbose) { if_printf(sc->hn_ifp, "offload csum: " "ip4 %u, tcp4 %u, udp4 %u, tcp6 %u, udp6 %u\n", params.ndis_ip4csum, params.ndis_tcp4csum, params.ndis_udp4csum, params.ndis_tcp6csum, params.ndis_udp6csum); if_printf(sc->hn_ifp, "offload lsov2: ip4 %u, ip6 %u\n", params.ndis_lsov2_ip4, params.ndis_lsov2_ip6); } error = hn_rndis_set(sc, OID_TCP_OFFLOAD_PARAMETERS, ¶ms, paramsz); if (error) { if_printf(sc->hn_ifp, "offload config failed: %d\n", error); return (error); } if (bootverbose) if_printf(sc->hn_ifp, "offload config done\n"); sc->hn_caps |= caps; return (0); } int hn_rndis_conf_rss(struct hn_softc *sc, uint16_t flags) { struct ndis_rssprm_toeplitz *rss = &sc->hn_rss; struct ndis_rss_params *prm = &rss->rss_params; int error; /* * Only NDIS 6.30+ is supported. */ KASSERT(sc->hn_ndis_ver >= HN_NDIS_VERSION_6_30, ("NDIS 6.30+ is required, NDIS version 0x%08x", sc->hn_ndis_ver)); /* * NOTE: * DO NOT whack rss_key and rss_ind, which are setup by the caller. */ memset(prm, 0, sizeof(*prm)); prm->ndis_hdr.ndis_type = NDIS_OBJTYPE_RSS_PARAMS; prm->ndis_hdr.ndis_rev = NDIS_RSS_PARAMS_REV_2; prm->ndis_hdr.ndis_size = sizeof(*rss); prm->ndis_flags = flags; prm->ndis_hash = NDIS_HASH_FUNCTION_TOEPLITZ | NDIS_HASH_IPV4 | NDIS_HASH_TCP_IPV4 | NDIS_HASH_IPV6 | NDIS_HASH_TCP_IPV6; /* TODO: Take ndis_rss_caps.ndis_nind into account */ prm->ndis_indsize = sizeof(rss->rss_ind); prm->ndis_indoffset = __offsetof(struct ndis_rssprm_toeplitz, rss_ind[0]); prm->ndis_keysize = sizeof(rss->rss_key); prm->ndis_keyoffset = __offsetof(struct ndis_rssprm_toeplitz, rss_key[0]); error = hn_rndis_set(sc, OID_GEN_RECEIVE_SCALE_PARAMETERS, rss, sizeof(*rss)); if (error) { if_printf(sc->hn_ifp, "RSS config failed: %d\n", error); } else { if (bootverbose) if_printf(sc->hn_ifp, "RSS config done\n"); } return (error); } int hn_rndis_set_rxfilter(struct hn_softc *sc, uint32_t filter) { int error; error = hn_rndis_set(sc, OID_GEN_CURRENT_PACKET_FILTER, &filter, sizeof(filter)); if (error) { if_printf(sc->hn_ifp, "set RX filter 0x%08x failed: %d\n", filter, error); } else { if (bootverbose) { if_printf(sc->hn_ifp, "set RX filter 0x%08x done\n", filter); } } return (error); } static int hn_rndis_init(struct hn_softc *sc) { struct rndis_init_req *req; const struct rndis_init_comp *comp; struct vmbus_xact *xact; size_t comp_len; uint32_t rid; int error; xact = vmbus_xact_get(sc->hn_xact, sizeof(*req)); if (xact == NULL) { if_printf(sc->hn_ifp, "no xact for RNDIS init\n"); return (ENXIO); } rid = hn_rndis_rid(sc); req = vmbus_xact_req_data(xact); req->rm_type = REMOTE_NDIS_INITIALIZE_MSG; req->rm_len = sizeof(*req); req->rm_rid = rid; req->rm_ver_major = RNDIS_VERSION_MAJOR; req->rm_ver_minor = RNDIS_VERSION_MINOR; req->rm_max_xfersz = HN_RNDIS_XFER_SIZE; comp_len = RNDIS_INIT_COMP_SIZE_MIN; comp = hn_rndis_xact_execute(sc, xact, rid, sizeof(*req), &comp_len, REMOTE_NDIS_INITIALIZE_CMPLT); if (comp == NULL) { if_printf(sc->hn_ifp, "exec RNDIS init failed\n"); error = EIO; goto done; } if (comp->rm_status != RNDIS_STATUS_SUCCESS) { if_printf(sc->hn_ifp, "RNDIS init failed: status 0x%08x\n", comp->rm_status); error = EIO; goto done; } if (bootverbose) { if_printf(sc->hn_ifp, "RNDIS ver %u.%u, pktsz %u, pktcnt %u, " "align %u\n", comp->rm_ver_major, comp->rm_ver_minor, comp->rm_pktmaxsz, comp->rm_pktmaxcnt, 1U << comp->rm_align); } error = 0; done: vmbus_xact_put(xact); return (error); } static int hn_rndis_halt(struct hn_softc *sc) { struct vmbus_xact *xact; struct rndis_halt_req *halt; struct hn_send_ctx sndc; size_t comp_len; xact = vmbus_xact_get(sc->hn_xact, sizeof(*halt)); if (xact == NULL) { if_printf(sc->hn_ifp, "no xact for RNDIS halt\n"); return (ENXIO); } halt = vmbus_xact_req_data(xact); halt->rm_type = REMOTE_NDIS_HALT_MSG; halt->rm_len = sizeof(*halt); halt->rm_rid = hn_rndis_rid(sc); /* No RNDIS completion; rely on NVS message send completion */ hn_send_ctx_init_simple(&sndc, hn_nvs_sent_xact, xact); hn_rndis_xact_exec1(sc, xact, sizeof(*halt), &sndc, &comp_len); vmbus_xact_put(xact); if (bootverbose) if_printf(sc->hn_ifp, "RNDIS halt done\n"); return (0); } static int hn_rndis_query_hwcaps(struct hn_softc *sc, struct ndis_offload *caps) { struct ndis_offload in; size_t caps_len, size; int error; memset(&in, 0, sizeof(in)); in.ndis_hdr.ndis_type = NDIS_OBJTYPE_OFFLOAD; if (sc->hn_ndis_ver >= HN_NDIS_VERSION_6_30) { in.ndis_hdr.ndis_rev = NDIS_OFFLOAD_REV_3; size = NDIS_OFFLOAD_SIZE; } else if (sc->hn_ndis_ver >= HN_NDIS_VERSION_6_1) { in.ndis_hdr.ndis_rev = NDIS_OFFLOAD_REV_2; size = NDIS_OFFLOAD_SIZE_2; } else { in.ndis_hdr.ndis_rev = NDIS_OFFLOAD_REV_1; size = NDIS_OFFLOAD_SIZE_1; } in.ndis_hdr.ndis_size = size; caps_len = NDIS_OFFLOAD_SIZE; error = hn_rndis_query2(sc, OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES, &in, size, caps, &caps_len, NDIS_OFFLOAD_SIZE_1); if (error) return (error); /* * Preliminary verification. */ if (caps->ndis_hdr.ndis_type != NDIS_OBJTYPE_OFFLOAD) { if_printf(sc->hn_ifp, "invalid NDIS objtype 0x%02x\n", caps->ndis_hdr.ndis_type); return (EINVAL); } if (caps->ndis_hdr.ndis_rev < NDIS_OFFLOAD_REV_1) { if_printf(sc->hn_ifp, "invalid NDIS objrev 0x%02x\n", caps->ndis_hdr.ndis_rev); return (EINVAL); } if (caps->ndis_hdr.ndis_size > caps_len) { if_printf(sc->hn_ifp, "invalid NDIS objsize %u, " "data size %zu\n", caps->ndis_hdr.ndis_size, caps_len); return (EINVAL); } else if (caps->ndis_hdr.ndis_size < NDIS_OFFLOAD_SIZE_1) { if_printf(sc->hn_ifp, "invalid NDIS objsize %u\n", caps->ndis_hdr.ndis_size); return (EINVAL); } if (bootverbose) { /* * Fields for NDIS 6.0 are accessable. */ if_printf(sc->hn_ifp, "hwcaps rev %u\n", caps->ndis_hdr.ndis_rev); if_printf(sc->hn_ifp, "hwcaps csum: " "ip4 tx 0x%x/0x%x rx 0x%x/0x%x, " "ip6 tx 0x%x/0x%x rx 0x%x/0x%x\n", caps->ndis_csum.ndis_ip4_txcsum, caps->ndis_csum.ndis_ip4_txenc, caps->ndis_csum.ndis_ip4_rxcsum, caps->ndis_csum.ndis_ip4_rxenc, caps->ndis_csum.ndis_ip6_txcsum, caps->ndis_csum.ndis_ip6_txenc, caps->ndis_csum.ndis_ip6_rxcsum, caps->ndis_csum.ndis_ip6_rxenc); if_printf(sc->hn_ifp, "hwcaps lsov2: " "ip4 maxsz %u minsg %u encap 0x%x, " "ip6 maxsz %u minsg %u encap 0x%x opts 0x%x\n", caps->ndis_lsov2.ndis_ip4_maxsz, caps->ndis_lsov2.ndis_ip4_minsg, caps->ndis_lsov2.ndis_ip4_encap, caps->ndis_lsov2.ndis_ip6_maxsz, caps->ndis_lsov2.ndis_ip6_minsg, caps->ndis_lsov2.ndis_ip6_encap, caps->ndis_lsov2.ndis_ip6_opts); } return (0); } int -hn_rndis_attach(struct hn_softc *sc) +hn_rndis_attach(struct hn_softc *sc, int mtu) { int error; /* * Initialize RNDIS. */ error = hn_rndis_init(sc); if (error) return (error); /* * Configure NDIS offload settings. * XXX no offloading, if error happened? */ - hn_rndis_conf_offload(sc); + hn_rndis_conf_offload(sc, mtu); return (0); } void hn_rndis_detach(struct hn_softc *sc) { /* Halt the RNDIS. */ hn_rndis_halt(sc); } void hv_rf_channel_rollup(struct hn_rx_ring *rxr, struct hn_tx_ring *txr) { hn_chan_rollup(rxr, txr); } Index: head/sys/dev/hyperv/netvsc/if_hnvar.h =================================================================== --- head/sys/dev/hyperv/netvsc/if_hnvar.h (revision 306936) +++ head/sys/dev/hyperv/netvsc/if_hnvar.h (revision 306937) @@ -1,144 +1,144 @@ /*- * Copyright (c) 2016 Microsoft Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice unmodified, this list of conditions, and the following * disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD$ */ #ifndef _IF_HNVAR_H_ #define _IF_HNVAR_H_ #include #include #include struct hn_softc; struct vmbus_channel; struct hn_send_ctx; typedef void (*hn_sent_callback_t) (struct hn_send_ctx *, struct hn_softc *, struct vmbus_channel *, const void *, int); struct hn_send_ctx { hn_sent_callback_t hn_cb; void *hn_cbarg; uint32_t hn_chim_idx; int hn_chim_sz; }; struct rndis_hash_info; struct rndix_hash_value; struct ndis_8021q_info_; 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; uint32_t hash_info; uint32_t hash_value; }; #define HN_SEND_CTX_INITIALIZER(cb, cbarg) \ { \ .hn_cb = cb, \ .hn_cbarg = cbarg, \ .hn_chim_idx = HN_NVS_CHIM_IDX_INVALID, \ .hn_chim_sz = 0 \ } static __inline void hn_send_ctx_init(struct hn_send_ctx *sndc, hn_sent_callback_t cb, void *cbarg, uint32_t chim_idx, int chim_sz) { sndc->hn_cb = cb; sndc->hn_cbarg = cbarg; sndc->hn_chim_idx = chim_idx; sndc->hn_chim_sz = chim_sz; } static __inline void hn_send_ctx_init_simple(struct hn_send_ctx *sndc, hn_sent_callback_t cb, void *cbarg) { hn_send_ctx_init(sndc, cb, cbarg, HN_NVS_CHIM_IDX_INVALID, 0); } static __inline int hn_nvs_send(struct vmbus_channel *chan, uint16_t flags, void *nvs_msg, int nvs_msglen, struct hn_send_ctx *sndc) { return (vmbus_chan_send(chan, VMBUS_CHANPKT_TYPE_INBAND, flags, nvs_msg, nvs_msglen, (uint64_t)(uintptr_t)sndc)); } static __inline int hn_nvs_send_sglist(struct vmbus_channel *chan, struct vmbus_gpa sg[], int sglen, void *nvs_msg, int nvs_msglen, struct hn_send_ctx *sndc) { return (vmbus_chan_send_sglist(chan, sg, sglen, nvs_msg, nvs_msglen, (uint64_t)(uintptr_t)sndc)); } struct vmbus_xact; struct rndis_packet_msg; uint32_t hn_chim_alloc(struct hn_softc *sc); void hn_chim_free(struct hn_softc *sc, uint32_t chim_idx); -int hn_rndis_attach(struct hn_softc *sc); +int hn_rndis_attach(struct hn_softc *sc, int mtu); void hn_rndis_detach(struct hn_softc *sc); int hn_rndis_conf_rss(struct hn_softc *sc, uint16_t flags); void *hn_rndis_pktinfo_append(struct rndis_packet_msg *, size_t pktsize, size_t pi_dlen, uint32_t pi_type); int hn_rndis_get_rsscaps(struct hn_softc *sc, int *rxr_cnt); int hn_rndis_get_eaddr(struct hn_softc *sc, uint8_t *eaddr); int hn_rndis_get_linkstatus(struct hn_softc *sc, uint32_t *link_status); /* filter: NDIS_PACKET_TYPE_ or 0. */ int hn_rndis_set_rxfilter(struct hn_softc *sc, uint32_t filter); int hn_nvs_attach(struct hn_softc *sc, int mtu); void hn_nvs_detach(struct hn_softc *sc); int hn_nvs_alloc_subchans(struct hn_softc *sc, int *nsubch); void hn_nvs_sent_xact(struct hn_send_ctx *sndc, struct hn_softc *sc, struct vmbus_channel *chan, const void *data, int dlen); int hn_rxpkt(struct hn_rx_ring *rxr, const void *data, int dlen, const struct hn_recvinfo *info); void hn_chan_rollup(struct hn_rx_ring *rxr, struct hn_tx_ring *txr); extern struct hn_send_ctx hn_send_ctx_none; #endif /* !_IF_HNVAR_H_ */