if_hnvar.h revision 311375
1/*- 2 * Copyright (c) 2016 Microsoft Corp. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD: stable/11/sys/dev/hyperv/netvsc/if_hnvar.h 311375 2017-01-05 06:25:16Z sephe $ 27 */ 28 29#ifndef _IF_HNVAR_H_ 30#define _IF_HNVAR_H_ 31 32#define HN_USE_TXDESC_BUFRING 33 34#define HN_CHIM_SIZE (15 * 1024 * 1024) 35 36#define HN_RXBUF_SIZE (16 * 1024 * 1024) 37#define HN_RXBUF_SIZE_COMPAT (15 * 1024 * 1024) 38 39/* Claimed to be 12232B */ 40#define HN_MTU_MAX (9 * 1024) 41 42#define HN_TXBR_SIZE (128 * PAGE_SIZE) 43#define HN_RXBR_SIZE (128 * PAGE_SIZE) 44 45#define HN_XACT_REQ_PGCNT 2 46#define HN_XACT_RESP_PGCNT 2 47#define HN_XACT_REQ_SIZE (HN_XACT_REQ_PGCNT * PAGE_SIZE) 48#define HN_XACT_RESP_SIZE (HN_XACT_RESP_PGCNT * PAGE_SIZE) 49 50#define HN_GPACNT_MAX 32 51 52struct hn_txdesc; 53#ifndef HN_USE_TXDESC_BUFRING 54SLIST_HEAD(hn_txdesc_list, hn_txdesc); 55#else 56struct buf_ring; 57#endif 58struct hn_tx_ring; 59 60struct hn_rx_ring { 61 struct ifnet *hn_ifp; 62 struct hn_tx_ring *hn_txr; 63 void *hn_pktbuf; 64 int hn_pktbuf_len; 65 uint8_t *hn_rxbuf; /* shadow sc->hn_rxbuf */ 66 int hn_rx_idx; 67 68 /* Trust csum verification on host side */ 69 int hn_trust_hcsum; /* HN_TRUST_HCSUM_ */ 70 struct lro_ctrl hn_lro; 71 72 u_long hn_csum_ip; 73 u_long hn_csum_tcp; 74 u_long hn_csum_udp; 75 u_long hn_csum_trusted; 76 u_long hn_lro_tried; 77 u_long hn_small_pkts; 78 u_long hn_pkts; 79 u_long hn_rss_pkts; 80 u_long hn_ack_failed; 81 82 /* Rarely used stuffs */ 83 struct sysctl_oid *hn_rx_sysctl_tree; 84 int hn_rx_flags; 85 86 void *hn_br; /* TX/RX bufring */ 87 struct hyperv_dma hn_br_dma; 88} __aligned(CACHE_LINE_SIZE); 89 90#define HN_TRUST_HCSUM_IP 0x0001 91#define HN_TRUST_HCSUM_TCP 0x0002 92#define HN_TRUST_HCSUM_UDP 0x0004 93 94#define HN_RX_FLAG_ATTACHED 0x0001 95#define HN_RX_FLAG_BR_REF 0x0002 96 97struct hn_tx_ring { 98#ifndef HN_USE_TXDESC_BUFRING 99 struct mtx hn_txlist_spin; 100 struct hn_txdesc_list hn_txlist; 101#else 102 struct buf_ring *hn_txdesc_br; 103#endif 104 int hn_txdesc_cnt; 105 int hn_txdesc_avail; 106 u_short hn_has_txeof; 107 u_short hn_txdone_cnt; 108 109 int hn_sched_tx; 110 void (*hn_txeof)(struct hn_tx_ring *); 111 struct taskqueue *hn_tx_taskq; 112 struct task hn_tx_task; 113 struct task hn_txeof_task; 114 115 struct buf_ring *hn_mbuf_br; 116 int hn_oactive; 117 int hn_tx_idx; 118 int hn_tx_flags; 119 120 struct mtx hn_tx_lock; 121 struct hn_softc *hn_sc; 122 struct vmbus_channel *hn_chan; 123 124 int hn_direct_tx_size; 125 int hn_chim_size; 126 bus_dma_tag_t hn_tx_data_dtag; 127 uint64_t hn_csum_assist; 128 129 /* Applied packet transmission aggregation limits. */ 130 int hn_agg_szmax; 131 short hn_agg_pktmax; 132 short hn_agg_align; 133 134 /* Packet transmission aggregation states. */ 135 struct hn_txdesc *hn_agg_txd; 136 int hn_agg_szleft; 137 short hn_agg_pktleft; 138 struct rndis_packet_msg *hn_agg_prevpkt; 139 140 /* Temporary stats for each sends. */ 141 int hn_stat_size; 142 short hn_stat_pkts; 143 short hn_stat_mcasts; 144 145 int (*hn_sendpkt)(struct hn_tx_ring *, struct hn_txdesc *); 146 int hn_suspended; 147 int hn_gpa_cnt; 148 struct vmbus_gpa hn_gpa[HN_GPACNT_MAX]; 149 150 u_long hn_no_txdescs; 151 u_long hn_send_failed; 152 u_long hn_txdma_failed; 153 u_long hn_tx_collapsed; 154 u_long hn_tx_chimney_tried; 155 u_long hn_tx_chimney; 156 u_long hn_pkts; 157 u_long hn_sends; 158 u_long hn_flush_failed; 159 160 /* Rarely used stuffs */ 161 struct hn_txdesc *hn_txdesc; 162 bus_dma_tag_t hn_tx_rndis_dtag; 163 struct sysctl_oid *hn_tx_sysctl_tree; 164} __aligned(CACHE_LINE_SIZE); 165 166#define HN_TX_FLAG_ATTACHED 0x0001 167#define HN_TX_FLAG_HASHVAL 0x0002 /* support HASHVAL pktinfo */ 168 169/* 170 * Device-specific softc structure 171 */ 172struct hn_softc { 173 struct ifnet *hn_ifp; 174 struct ifmedia hn_media; 175 device_t hn_dev; 176 int hn_if_flags; 177 struct sx hn_lock; 178 struct vmbus_channel *hn_prichan; 179 180 int hn_rx_ring_cnt; 181 int hn_rx_ring_inuse; 182 struct hn_rx_ring *hn_rx_ring; 183 184 int hn_tx_ring_cnt; 185 int hn_tx_ring_inuse; 186 struct hn_tx_ring *hn_tx_ring; 187 188 uint8_t *hn_chim; 189 u_long *hn_chim_bmap; 190 int hn_chim_bmap_cnt; 191 int hn_chim_cnt; 192 int hn_chim_szmax; 193 194 int hn_cpu; 195 struct taskqueue **hn_tx_taskqs; 196 struct sysctl_oid *hn_tx_sysctl_tree; 197 struct sysctl_oid *hn_rx_sysctl_tree; 198 struct vmbus_xact_ctx *hn_xact; 199 uint32_t hn_nvs_ver; 200 uint32_t hn_rx_filter; 201 202 /* Packet transmission aggregation user settings. */ 203 int hn_agg_size; 204 int hn_agg_pkts; 205 206 struct taskqueue *hn_mgmt_taskq; 207 struct taskqueue *hn_mgmt_taskq0; 208 struct task hn_link_task; 209 struct task hn_netchg_init; 210 struct timeout_task hn_netchg_status; 211 uint32_t hn_link_flags; /* HN_LINK_FLAG_ */ 212 213 uint32_t hn_caps; /* HN_CAP_ */ 214 uint32_t hn_flags; /* HN_FLAG_ */ 215 u_int hn_pollhz; 216 217 void *hn_rxbuf; 218 uint32_t hn_rxbuf_gpadl; 219 struct hyperv_dma hn_rxbuf_dma; 220 221 uint32_t hn_chim_gpadl; 222 struct hyperv_dma hn_chim_dma; 223 224 uint32_t hn_rndis_rid; 225 uint32_t hn_ndis_ver; 226 int hn_ndis_tso_szmax; 227 int hn_ndis_tso_sgmin; 228 uint32_t hn_rndis_agg_size; 229 uint32_t hn_rndis_agg_pkts; 230 uint32_t hn_rndis_agg_align; 231 232 int hn_rss_ind_size; 233 uint32_t hn_rss_hash; /* NDIS_HASH_ */ 234 struct ndis_rssprm_toeplitz hn_rss; 235}; 236 237#define HN_FLAG_RXBUF_CONNECTED 0x0001 238#define HN_FLAG_CHIM_CONNECTED 0x0002 239#define HN_FLAG_HAS_RSSKEY 0x0004 240#define HN_FLAG_HAS_RSSIND 0x0008 241#define HN_FLAG_SYNTH_ATTACHED 0x0010 242#define HN_FLAG_NO_SLEEPING 0x0020 243#define HN_FLAG_RXBUF_REF 0x0040 244#define HN_FLAG_CHIM_REF 0x0080 245 246#define HN_FLAG_ERRORS (HN_FLAG_RXBUF_REF | HN_FLAG_CHIM_REF) 247 248#define HN_NO_SLEEPING(sc) \ 249do { \ 250 (sc)->hn_flags |= HN_FLAG_NO_SLEEPING; \ 251} while (0) 252 253#define HN_SLEEPING_OK(sc) \ 254do { \ 255 (sc)->hn_flags &= ~HN_FLAG_NO_SLEEPING; \ 256} while (0) 257 258#define HN_CAN_SLEEP(sc) \ 259 (((sc)->hn_flags & HN_FLAG_NO_SLEEPING) == 0) 260 261#define HN_CAP_VLAN 0x0001 262#define HN_CAP_MTU 0x0002 263#define HN_CAP_IPCS 0x0004 264#define HN_CAP_TCP4CS 0x0008 265#define HN_CAP_TCP6CS 0x0010 266#define HN_CAP_UDP4CS 0x0020 267#define HN_CAP_UDP6CS 0x0040 268#define HN_CAP_TSO4 0x0080 269#define HN_CAP_TSO6 0x0100 270#define HN_CAP_HASHVAL 0x0200 271 272/* Capability description for use with printf(9) %b identifier. */ 273#define HN_CAP_BITS \ 274 "\020\1VLAN\2MTU\3IPCS\4TCP4CS\5TCP6CS" \ 275 "\6UDP4CS\7UDP6CS\10TSO4\11TSO6\12HASHVAL" 276 277#define HN_LINK_FLAG_LINKUP 0x0001 278#define HN_LINK_FLAG_NETCHG 0x0002 279 280#endif /* !_IF_HNVAR_H_ */ 281