Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/hyperv/netvsc/if_hnvar.h
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1 /*- 2 * Copyright (c) 2016-2017 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 * $FreeBSD$ 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 (31 * 1024 * 1024) 37 #define HN_RXBUF_SIZE_COMPAT (15 * 1024 * 1024) 38 39 #define HN_MTU_MAX (65535 - ETHER_ADDR_LEN) 40 41 #define HN_TXBR_SIZE (128 * PAGE_SIZE) 42 #define HN_RXBR_SIZE (128 * PAGE_SIZE) 43 44 #define HN_XACT_REQ_PGCNT 2 45 #define HN_XACT_RESP_PGCNT 2 46 #define HN_XACT_REQ_SIZE (HN_XACT_REQ_PGCNT * PAGE_SIZE) 47 #define HN_XACT_RESP_SIZE (HN_XACT_RESP_PGCNT * PAGE_SIZE) 48 49 #define HN_GPACNT_MAX 32 50 51 struct hn_txdesc; 52 #ifndef HN_USE_TXDESC_BUFRING 53 SLIST_HEAD(hn_txdesc_list, hn_txdesc); 54 #else 55 struct buf_ring; 56 #endif 57 struct hn_tx_ring; 58 59 #define HN_NVS_RSC_MAX 562 /* Max RSC frags in one vmbus packet */ 60 61 struct hn_rx_rsc { 62 const uint32_t *vlan_info; 63 const uint32_t *csum_info; 64 const uint32_t *hash_info; 65 const uint32_t *hash_value; 66 uint32_t cnt; /* fragment count */ 67 uint32_t pktlen; /* full packet length */ 68 uint8_t is_last; /* last fragment */ 69 const void *frag_data[HN_NVS_RSC_MAX]; 70 uint32_t frag_len[HN_NVS_RSC_MAX]; 71 }; 72 73 struct hn_rx_ring { 74 struct ifnet *hn_ifp; 75 struct ifnet *hn_rxvf_ifp; /* SR-IOV VF for RX */ 76 struct hn_tx_ring *hn_txr; 77 void *hn_pktbuf; 78 int hn_pktbuf_len; 79 int hn_rx_flags; /* HN_RX_FLAG_ */ 80 uint32_t hn_mbuf_hash; /* NDIS_HASH_ */ 81 uint8_t *hn_rxbuf; /* shadow sc->hn_rxbuf */ 82 int hn_rx_idx; 83 struct hn_rx_rsc rsc; 84 85 /* Trust csum verification on host side */ 86 int hn_trust_hcsum; /* HN_TRUST_HCSUM_ */ 87 struct lro_ctrl hn_lro; 88 89 u_long hn_csum_ip; 90 u_long hn_csum_tcp; 91 u_long hn_csum_udp; 92 u_long hn_csum_trusted; 93 u_long hn_lro_tried; 94 u_long hn_small_pkts; 95 u_long hn_pkts; 96 u_long hn_rss_pkts; 97 u_long hn_ack_failed; 98 u_long hn_rsc_pkts; 99 u_long hn_rsc_drop; 100 101 /* Rarely used stuffs */ 102 struct sysctl_oid *hn_rx_sysctl_tree; 103 104 void *hn_br; /* TX/RX bufring */ 105 struct hyperv_dma hn_br_dma; 106 107 struct vmbus_channel *hn_chan; 108 } __aligned(CACHE_LINE_SIZE); 109 110 #define HN_TRUST_HCSUM_IP 0x0001 111 #define HN_TRUST_HCSUM_TCP 0x0002 112 #define HN_TRUST_HCSUM_UDP 0x0004 113 114 #define HN_RX_FLAG_ATTACHED 0x0001 115 #define HN_RX_FLAG_BR_REF 0x0002 116 #define HN_RX_FLAG_XPNT_VF 0x0004 117 #define HN_RX_FLAG_UDP_HASH 0x0008 118 119 struct hn_tx_ring { 120 #ifndef HN_USE_TXDESC_BUFRING 121 struct mtx hn_txlist_spin; 122 struct hn_txdesc_list hn_txlist; 123 #else 124 struct buf_ring *hn_txdesc_br; 125 #endif 126 int hn_txdesc_cnt; 127 int hn_txdesc_avail; 128 u_short hn_has_txeof; 129 u_short hn_txdone_cnt; 130 131 int hn_sched_tx; 132 void (*hn_txeof)(struct hn_tx_ring *); 133 struct taskqueue *hn_tx_taskq; 134 struct task hn_tx_task; 135 struct task hn_txeof_task; 136 137 struct buf_ring *hn_mbuf_br; 138 int hn_oactive; 139 int hn_tx_idx; 140 int hn_tx_flags; 141 142 struct mtx hn_tx_lock; 143 struct hn_softc *hn_sc; 144 struct vmbus_channel *hn_chan; 145 146 int hn_direct_tx_size; 147 int hn_chim_size; 148 bus_dma_tag_t hn_tx_data_dtag; 149 uint64_t hn_csum_assist; 150 151 /* Applied packet transmission aggregation limits. */ 152 int hn_agg_szmax; 153 short hn_agg_pktmax; 154 short hn_agg_align; 155 156 /* Packet transmission aggregation states. */ 157 struct hn_txdesc *hn_agg_txd; 158 int hn_agg_szleft; 159 short hn_agg_pktleft; 160 struct rndis_packet_msg *hn_agg_prevpkt; 161 162 /* Temporary stats for each sends. */ 163 int hn_stat_size; 164 short hn_stat_pkts; 165 short hn_stat_mcasts; 166 167 int (*hn_sendpkt)(struct hn_tx_ring *, struct hn_txdesc *); 168 int hn_suspended; 169 int hn_gpa_cnt; 170 struct vmbus_gpa hn_gpa[HN_GPACNT_MAX]; 171 172 u_long hn_no_txdescs; 173 u_long hn_send_failed; 174 u_long hn_txdma_failed; 175 u_long hn_tx_collapsed; 176 u_long hn_tx_chimney_tried; 177 u_long hn_tx_chimney; 178 u_long hn_pkts; 179 u_long hn_sends; 180 u_long hn_flush_failed; 181 182 /* Rarely used stuffs */ 183 struct hn_txdesc *hn_txdesc; 184 bus_dma_tag_t hn_tx_rndis_dtag; 185 struct sysctl_oid *hn_tx_sysctl_tree; 186 } __aligned(CACHE_LINE_SIZE); 187 188 #define HN_TX_FLAG_ATTACHED 0x0001 189 #define HN_TX_FLAG_HASHVAL 0x0002 /* support HASHVAL pktinfo */ 190 191 /* 192 * Device-specific softc structure 193 */ 194 struct hn_softc { 195 struct ifnet *hn_ifp; 196 struct ifmedia hn_media; 197 device_t hn_dev; 198 int hn_if_flags; 199 struct sx hn_lock; 200 struct vmbus_channel *hn_prichan; 201 202 int hn_rx_ring_cnt; 203 int hn_rx_ring_inuse; 204 struct hn_rx_ring *hn_rx_ring; 205 206 struct rmlock hn_vf_lock; 207 struct ifnet *hn_vf_ifp; /* SR-IOV VF */ 208 uint32_t hn_xvf_flags; /* transparent VF flags */ 209 210 int hn_tx_ring_cnt; 211 int hn_tx_ring_inuse; 212 struct hn_tx_ring *hn_tx_ring; 213 214 uint8_t *hn_chim; 215 u_long *hn_chim_bmap; 216 int hn_chim_bmap_cnt; 217 int hn_chim_cnt; 218 int hn_chim_szmax; 219 220 int hn_cpu; 221 struct taskqueue **hn_tx_taskqs; 222 struct sysctl_oid *hn_tx_sysctl_tree; 223 struct sysctl_oid *hn_rx_sysctl_tree; 224 struct vmbus_xact_ctx *hn_xact; 225 uint32_t hn_nvs_ver; 226 uint32_t hn_rx_filter; 227 228 /* Packet transmission aggregation user settings. */ 229 int hn_agg_size; 230 int hn_agg_pkts; 231 232 struct taskqueue *hn_mgmt_taskq; 233 struct taskqueue *hn_mgmt_taskq0; 234 struct task hn_link_task; 235 struct task hn_netchg_init; 236 struct timeout_task hn_netchg_status; 237 uint32_t hn_link_flags; /* HN_LINK_FLAG_ */ 238 239 uint32_t hn_caps; /* HN_CAP_ */ 240 uint32_t hn_flags; /* HN_FLAG_ */ 241 u_int hn_pollhz; 242 243 void *hn_rxbuf; 244 uint32_t hn_rxbuf_gpadl; 245 struct hyperv_dma hn_rxbuf_dma; 246 247 uint32_t hn_chim_gpadl; 248 struct hyperv_dma hn_chim_dma; 249 250 uint32_t hn_rndis_rid; 251 uint32_t hn_ndis_ver; 252 int hn_ndis_tso_szmax; 253 int hn_ndis_tso_sgmin; 254 uint32_t hn_rndis_agg_size; 255 uint32_t hn_rndis_agg_pkts; 256 uint32_t hn_rndis_agg_align; 257 258 int hn_rss_ind_size; 259 uint32_t hn_rss_hash; /* setting, NDIS_HASH_ */ 260 uint32_t hn_rss_hcap; /* caps, NDIS_HASH_ */ 261 struct ndis_rssprm_toeplitz hn_rss; 262 263 eventhandler_tag hn_ifaddr_evthand; 264 eventhandler_tag hn_ifnet_evthand; 265 eventhandler_tag hn_ifnet_atthand; 266 eventhandler_tag hn_ifnet_dethand; 267 eventhandler_tag hn_ifnet_lnkhand; 268 269 /* 270 * Transparent VF delayed initialization. 271 */ 272 int hn_vf_rdytick; /* ticks, 0 == ready */ 273 struct taskqueue *hn_vf_taskq; 274 struct timeout_task hn_vf_init; 275 276 /* 277 * Saved information for VF under transparent mode. 278 */ 279 void (*hn_vf_input) 280 (struct ifnet *, struct mbuf *); 281 int hn_saved_caps; 282 u_int hn_saved_tsomax; 283 u_int hn_saved_tsosegcnt; 284 u_int hn_saved_tsosegsz; 285 286 /* 287 * RSC switch, default off 288 */ 289 u_int hn_rsc_ctrl; 290 }; 291 292 #define HN_FLAG_RXBUF_CONNECTED 0x0001 293 #define HN_FLAG_CHIM_CONNECTED 0x0002 294 #define HN_FLAG_HAS_RSSKEY 0x0004 295 #define HN_FLAG_HAS_RSSIND 0x0008 296 #define HN_FLAG_SYNTH_ATTACHED 0x0010 297 #define HN_FLAG_NO_SLEEPING 0x0020 298 #define HN_FLAG_RXBUF_REF 0x0040 299 #define HN_FLAG_CHIM_REF 0x0080 300 #define HN_FLAG_RXVF 0x0100 301 302 #define HN_FLAG_ERRORS (HN_FLAG_RXBUF_REF | HN_FLAG_CHIM_REF) 303 304 #define HN_XVFFLAG_ENABLED 0x0001 305 #define HN_XVFFLAG_ACCBPF 0x0002 306 307 #define HN_NO_SLEEPING(sc) \ 308 do { \ 309 (sc)->hn_flags |= HN_FLAG_NO_SLEEPING; \ 310 } while (0) 311 312 #define HN_SLEEPING_OK(sc) \ 313 do { \ 314 (sc)->hn_flags &= ~HN_FLAG_NO_SLEEPING; \ 315 } while (0) 316 317 #define HN_CAN_SLEEP(sc) \ 318 (((sc)->hn_flags & HN_FLAG_NO_SLEEPING) == 0) 319 320 #define HN_CAP_VLAN 0x0001 321 #define HN_CAP_MTU 0x0002 322 #define HN_CAP_IPCS 0x0004 323 #define HN_CAP_TCP4CS 0x0008 324 #define HN_CAP_TCP6CS 0x0010 325 #define HN_CAP_UDP4CS 0x0020 326 #define HN_CAP_UDP6CS 0x0040 327 #define HN_CAP_TSO4 0x0080 328 #define HN_CAP_TSO6 0x0100 329 #define HN_CAP_HASHVAL 0x0200 330 #define HN_CAP_UDPHASH 0x0400 331 332 /* Capability description for use with printf(9) %b identifier. */ 333 #define HN_CAP_BITS \ 334 "\020\1VLAN\2MTU\3IPCS\4TCP4CS\5TCP6CS" \ 335 "\6UDP4CS\7UDP6CS\10TSO4\11TSO6\12HASHVAL\13UDPHASH" 336 337 #define HN_LINK_FLAG_LINKUP 0x0001 338 #define HN_LINK_FLAG_NETCHG 0x0002 339 340 #endif /* !_IF_HNVAR_H_ */
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