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 27 #ifndef _IF_HNVAR_H_ 28 #define _IF_HNVAR_H_ 29 30 #define HN_USE_TXDESC_BUFRING 31 32 #define HN_CHIM_SIZE (15 * 1024 * 1024) 33 34 #define HN_RXBUF_SIZE (31 * 1024 * 1024) 35 #define HN_RXBUF_SIZE_COMPAT (15 * 1024 * 1024) 36 37 #define HN_MTU_MAX (65535 - ETHER_ADDR_LEN) 38 39 #define HN_TXBR_SIZE (128 * PAGE_SIZE) 40 #define HN_RXBR_SIZE (128 * PAGE_SIZE) 41 42 #define HN_XACT_REQ_PGCNT 2 43 #define HN_XACT_RESP_PGCNT 2 44 #define HN_XACT_REQ_SIZE (HN_XACT_REQ_PGCNT * PAGE_SIZE) 45 #define HN_XACT_RESP_SIZE (HN_XACT_RESP_PGCNT * PAGE_SIZE) 46 47 #define HN_GPACNT_MAX 32 48 49 struct hn_txdesc; 50 #ifndef HN_USE_TXDESC_BUFRING 51 SLIST_HEAD(hn_txdesc_list, hn_txdesc); 52 #else 53 struct buf_ring; 54 #endif 55 struct hn_tx_ring; 56 57 #define HN_NVS_RSC_MAX 562 /* Max RSC frags in one vmbus packet */ 58 59 struct hn_rx_rsc { 60 const uint32_t *vlan_info; 61 const uint32_t *csum_info; 62 const uint32_t *hash_info; 63 const uint32_t *hash_value; 64 uint32_t cnt; /* fragment count */ 65 uint32_t pktlen; /* full packet length */ 66 uint8_t is_last; /* last fragment */ 67 const void *frag_data[HN_NVS_RSC_MAX]; 68 uint32_t frag_len[HN_NVS_RSC_MAX]; 69 }; 70 71 struct hn_rx_ring { 72 struct ifnet *hn_ifp; 73 struct ifnet *hn_rxvf_ifp; /* SR-IOV VF for RX */ 74 struct hn_tx_ring *hn_txr; 75 void *hn_pktbuf; 76 int hn_pktbuf_len; 77 int hn_rx_flags; /* HN_RX_FLAG_ */ 78 uint32_t hn_mbuf_hash; /* NDIS_HASH_ */ 79 uint8_t *hn_rxbuf; /* shadow sc->hn_rxbuf */ 80 int hn_rx_idx; 81 struct hn_rx_rsc rsc; 82 83 /* Trust csum verification on host side */ 84 int hn_trust_hcsum; /* HN_TRUST_HCSUM_ */ 85 struct lro_ctrl hn_lro; 86 87 u_long hn_csum_ip; 88 u_long hn_csum_tcp; 89 u_long hn_csum_udp; 90 u_long hn_csum_trusted; 91 u_long hn_lro_tried; 92 u_long hn_small_pkts; 93 u_long hn_pkts; 94 u_long hn_rss_pkts; 95 u_long hn_ack_failed; 96 u_long hn_rsc_pkts; 97 u_long hn_rsc_drop; 98 99 /* Rarely used stuffs */ 100 struct sysctl_oid *hn_rx_sysctl_tree; 101 102 void *hn_br; /* TX/RX bufring */ 103 struct hyperv_dma hn_br_dma; 104 105 struct vmbus_channel *hn_chan; 106 } __aligned(CACHE_LINE_SIZE); 107 108 #define HN_TRUST_HCSUM_IP 0x0001 109 #define HN_TRUST_HCSUM_TCP 0x0002 110 #define HN_TRUST_HCSUM_UDP 0x0004 111 112 #define HN_RX_FLAG_ATTACHED 0x0001 113 #define HN_RX_FLAG_BR_REF 0x0002 114 #define HN_RX_FLAG_XPNT_VF 0x0004 115 #define HN_RX_FLAG_UDP_HASH 0x0008 116 117 struct hn_tx_ring { 118 #ifndef HN_USE_TXDESC_BUFRING 119 struct mtx hn_txlist_spin; 120 struct hn_txdesc_list hn_txlist; 121 #else 122 struct buf_ring *hn_txdesc_br; 123 #endif 124 int hn_txdesc_cnt; 125 int hn_txdesc_avail; 126 u_short hn_has_txeof; 127 u_short hn_txdone_cnt; 128 129 int hn_sched_tx; 130 void (*hn_txeof)(struct hn_tx_ring *); 131 struct taskqueue *hn_tx_taskq; 132 struct task hn_tx_task; 133 struct task hn_txeof_task; 134 135 struct buf_ring *hn_mbuf_br; 136 int hn_oactive; 137 int hn_tx_idx; 138 int hn_tx_flags; 139 140 struct mtx hn_tx_lock; 141 struct hn_softc *hn_sc; 142 struct vmbus_channel *hn_chan; 143 144 int hn_direct_tx_size; 145 int hn_chim_size; 146 bus_dma_tag_t hn_tx_data_dtag; 147 uint64_t hn_csum_assist; 148 149 /* Applied packet transmission aggregation limits. */ 150 int hn_agg_szmax; 151 short hn_agg_pktmax; 152 short hn_agg_align; 153 154 /* Packet transmission aggregation states. */ 155 struct hn_txdesc *hn_agg_txd; 156 int hn_agg_szleft; 157 short hn_agg_pktleft; 158 struct rndis_packet_msg *hn_agg_prevpkt; 159 160 /* Temporary stats for each sends. */ 161 int hn_stat_size; 162 short hn_stat_pkts; 163 short hn_stat_mcasts; 164 165 int (*hn_sendpkt)(struct hn_tx_ring *, struct hn_txdesc *); 166 int hn_suspended; 167 int hn_gpa_cnt; 168 struct vmbus_gpa hn_gpa[HN_GPACNT_MAX]; 169 170 u_long hn_no_txdescs; 171 u_long hn_send_failed; 172 u_long hn_txdma_failed; 173 u_long hn_tx_collapsed; 174 u_long hn_tx_chimney_tried; 175 u_long hn_tx_chimney; 176 u_long hn_pkts; 177 u_long hn_sends; 178 u_long hn_flush_failed; 179 180 /* Rarely used stuffs */ 181 struct hn_txdesc *hn_txdesc; 182 bus_dma_tag_t hn_tx_rndis_dtag; 183 struct sysctl_oid *hn_tx_sysctl_tree; 184 } __aligned(CACHE_LINE_SIZE); 185 186 #define HN_TX_FLAG_ATTACHED 0x0001 187 #define HN_TX_FLAG_HASHVAL 0x0002 /* support HASHVAL pktinfo */ 188 189 /* 190 * Device-specific softc structure 191 */ 192 struct hn_softc { 193 struct ifnet *hn_ifp; 194 struct ifmedia hn_media; 195 device_t hn_dev; 196 int hn_if_flags; 197 struct sx hn_lock; 198 struct vmbus_channel *hn_prichan; 199 200 int hn_rx_ring_cnt; 201 int hn_rx_ring_inuse; 202 struct hn_rx_ring *hn_rx_ring; 203 204 struct rmlock hn_vf_lock; 205 struct ifnet *hn_vf_ifp; /* SR-IOV VF */ 206 uint32_t hn_xvf_flags; /* transparent VF flags */ 207 208 int hn_tx_ring_cnt; 209 int hn_tx_ring_inuse; 210 struct hn_tx_ring *hn_tx_ring; 211 212 uint8_t *hn_chim; 213 u_long *hn_chim_bmap; 214 int hn_chim_bmap_cnt; 215 int hn_chim_cnt; 216 int hn_chim_szmax; 217 218 int hn_cpu; 219 struct taskqueue **hn_tx_taskqs; 220 struct sysctl_oid *hn_tx_sysctl_tree; 221 struct sysctl_oid *hn_rx_sysctl_tree; 222 struct vmbus_xact_ctx *hn_xact; 223 uint32_t hn_nvs_ver; 224 uint32_t hn_rx_filter; 225 226 /* Packet transmission aggregation user settings. */ 227 int hn_agg_size; 228 int hn_agg_pkts; 229 230 struct taskqueue *hn_mgmt_taskq; 231 struct taskqueue *hn_mgmt_taskq0; 232 struct task hn_link_task; 233 struct task hn_netchg_init; 234 struct timeout_task hn_netchg_status; 235 uint32_t hn_link_flags; /* HN_LINK_FLAG_ */ 236 237 uint32_t hn_caps; /* HN_CAP_ */ 238 uint32_t hn_flags; /* HN_FLAG_ */ 239 u_int hn_pollhz; 240 241 void *hn_rxbuf; 242 uint32_t hn_rxbuf_gpadl; 243 struct hyperv_dma hn_rxbuf_dma; 244 245 uint32_t hn_chim_gpadl; 246 struct hyperv_dma hn_chim_dma; 247 248 uint32_t hn_rndis_rid; 249 uint32_t hn_ndis_ver; 250 int hn_ndis_tso_szmax; 251 int hn_ndis_tso_sgmin; 252 uint32_t hn_rndis_agg_size; 253 uint32_t hn_rndis_agg_pkts; 254 uint32_t hn_rndis_agg_align; 255 256 int hn_rss_ind_size; 257 uint32_t hn_rss_hash; /* setting, NDIS_HASH_ */ 258 uint32_t hn_rss_hcap; /* caps, NDIS_HASH_ */ 259 struct ndis_rssprm_toeplitz hn_rss; 260 261 eventhandler_tag hn_ifaddr_evthand; 262 eventhandler_tag hn_ifnet_evthand; 263 eventhandler_tag hn_ifnet_atthand; 264 eventhandler_tag hn_ifnet_dethand; 265 eventhandler_tag hn_ifnet_lnkhand; 266 267 /* 268 * Transparent VF delayed initialization. 269 */ 270 int hn_vf_rdytick; /* ticks, 0 == ready */ 271 struct taskqueue *hn_vf_taskq; 272 struct timeout_task hn_vf_init; 273 274 /* 275 * Saved information for VF under transparent mode. 276 */ 277 void (*hn_vf_input) 278 (struct ifnet *, struct mbuf *); 279 int hn_saved_caps; 280 u_int hn_saved_tsomax; 281 u_int hn_saved_tsosegcnt; 282 u_int hn_saved_tsosegsz; 283 }; 284 285 #define HN_FLAG_RXBUF_CONNECTED 0x0001 286 #define HN_FLAG_CHIM_CONNECTED 0x0002 287 #define HN_FLAG_HAS_RSSKEY 0x0004 288 #define HN_FLAG_HAS_RSSIND 0x0008 289 #define HN_FLAG_SYNTH_ATTACHED 0x0010 290 #define HN_FLAG_NO_SLEEPING 0x0020 291 #define HN_FLAG_RXBUF_REF 0x0040 292 #define HN_FLAG_CHIM_REF 0x0080 293 #define HN_FLAG_RXVF 0x0100 294 295 #define HN_FLAG_ERRORS (HN_FLAG_RXBUF_REF | HN_FLAG_CHIM_REF) 296 297 #define HN_XVFFLAG_ENABLED 0x0001 298 #define HN_XVFFLAG_ACCBPF 0x0002 299 300 #define HN_NO_SLEEPING(sc) \ 301 do { \ 302 (sc)->hn_flags |= HN_FLAG_NO_SLEEPING; \ 303 } while (0) 304 305 #define HN_SLEEPING_OK(sc) \ 306 do { \ 307 (sc)->hn_flags &= ~HN_FLAG_NO_SLEEPING; \ 308 } while (0) 309 310 #define HN_CAN_SLEEP(sc) \ 311 (((sc)->hn_flags & HN_FLAG_NO_SLEEPING) == 0) 312 313 #define HN_CAP_VLAN 0x0001 314 #define HN_CAP_MTU 0x0002 315 #define HN_CAP_IPCS 0x0004 316 #define HN_CAP_TCP4CS 0x0008 317 #define HN_CAP_TCP6CS 0x0010 318 #define HN_CAP_UDP4CS 0x0020 319 #define HN_CAP_UDP6CS 0x0040 320 #define HN_CAP_TSO4 0x0080 321 #define HN_CAP_TSO6 0x0100 322 #define HN_CAP_HASHVAL 0x0200 323 #define HN_CAP_UDPHASH 0x0400 324 325 /* Capability description for use with printf(9) %b identifier. */ 326 #define HN_CAP_BITS \ 327 "\020\1VLAN\2MTU\3IPCS\4TCP4CS\5TCP6CS" \ 328 "\6UDP4CS\7UDP6CS\10TSO4\11TSO6\12HASHVAL\13UDPHASH" 329 330 #define HN_LINK_FLAG_LINKUP 0x0001 331 #define HN_LINK_FLAG_NETCHG 0x0002 332 333 #endif /* !_IF_HNVAR_H_ */ 334