1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* 28 * This header file contains the data structures which the 29 * virtual switch (vsw) uses to communicate with its clients and 30 * the outside world. 31 */ 32 33 #ifndef _VSW_H 34 #define _VSW_H 35 36 #pragma ident "%Z%%M% %I% %E% SMI" 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 #include <sys/vio_mailbox.h> 43 #include <sys/vnet_common.h> 44 #include <sys/ethernet.h> 45 #include <sys/vio_util.h> 46 #include <sys/vgen_stats.h> 47 #include <sys/vsw_ldc.h> 48 49 #define DRV_NAME "vsw" 50 51 /* 52 * Only support ETHER mtu at moment. 53 */ 54 #define VSW_MTU ETHERMAX 55 56 /* ID of the source of a frame being switched */ 57 #define VSW_PHYSDEV 1 /* physical device associated */ 58 #define VSW_VNETPORT 2 /* port connected to vnet (over ldc) */ 59 #define VSW_LOCALDEV 4 /* vsw configured as an eth interface */ 60 61 /* 62 * Vsw queue -- largely modeled after squeue 63 * 64 * VSW_QUEUE_RUNNING, vqueue thread for queue is running. 65 * VSW_QUEUE_DRAINED, vqueue thread has drained current work and is exiting. 66 * VSW_QUEUE_STOP, request for the vqueue thread to stop. 67 * VSW_QUEUE_STOPPED, vqueue thread is not running. 68 */ 69 #define VSW_QUEUE_RUNNING 0x01 70 #define VSW_QUEUE_DRAINED 0x02 71 #define VSW_QUEUE_STOP 0x04 72 #define VSW_QUEUE_STOPPED 0x08 73 74 typedef struct vsw_queue_s { 75 kmutex_t vq_lock; /* Lock, before using any member. */ 76 kcondvar_t vq_cv; /* Async threads block on. */ 77 uint32_t vq_state; /* State flags. */ 78 79 mblk_t *vq_first; /* First mblk chain or NULL. */ 80 mblk_t *vq_last; /* Last mblk chain. */ 81 82 processorid_t vq_bind; /* Process to bind to */ 83 kthread_t *vq_worker; /* Queue's thread */ 84 } vsw_queue_t; 85 86 /* 87 * VSW MAC Ring Resources. 88 * MAC Ring resource is composed of this state structure and 89 * a kernel thread to perform the processing of the ring. 90 */ 91 typedef struct vsw_mac_ring_s { 92 uint32_t ring_state; 93 94 mac_blank_t ring_blank; 95 void *ring_arg; 96 97 vsw_queue_t *ring_vqp; 98 struct vsw *ring_vswp; 99 } vsw_mac_ring_t; 100 101 /* 102 * Maximum Ring Resources. 103 */ 104 #define VSW_MAC_RX_RINGS 0x40 105 106 /* 107 * States for entry in ring table. 108 */ 109 #define VSW_MAC_RING_FREE 1 110 #define VSW_MAC_RING_INUSE 2 111 112 /* 113 * Number of hash chains in the multicast forwarding database. 114 */ 115 #define VSW_NCHAINS 8 116 117 /* 118 * State of interface if switch plumbed as network device. 119 */ 120 #define VSW_IF_REG 0x1 /* interface was registered */ 121 #define VSW_IF_UP 0x2 /* Interface UP */ 122 #define VSW_IF_PROMISC 0x4 /* Interface in promiscious mode */ 123 124 #define VSW_U_P(state) \ 125 (state == (VSW_IF_UP | VSW_IF_PROMISC)) 126 127 /* 128 * Switching modes. 129 */ 130 #define VSW_LAYER2 0x1 /* Layer 2 - MAC switching */ 131 #define VSW_LAYER2_PROMISC 0x2 /* Layer 2 + promisc mode */ 132 #define VSW_LAYER3 0x4 /* Layer 3 - IP switching */ 133 134 #define NUM_SMODES 3 /* number of switching modes */ 135 136 /* 137 * vsw instance state information. 138 */ 139 typedef struct vsw { 140 int instance; /* instance # */ 141 dev_info_t *dip; /* associated dev_info */ 142 uint64_t regprop; /* "reg" property */ 143 struct vsw *next; /* next in list */ 144 char physname[LIFNAMSIZ]; /* phys-dev */ 145 uint8_t smode[NUM_SMODES]; /* switching mode */ 146 int smode_idx; /* curr pos in smode array */ 147 int smode_num; /* # of modes specified */ 148 kmutex_t swtmout_lock; /* setup switching tmout lock */ 149 boolean_t swtmout_enabled; /* setup switching tmout on */ 150 timeout_id_t swtmout_id; /* setup switching tmout id */ 151 uint32_t switching_setup_done; /* setup switching done */ 152 int mac_open_retries; /* mac_open() retry count */ 153 vsw_port_list_t plist; /* associated ports */ 154 ddi_taskq_t *taskq_p; /* VIO ctrl msg taskq */ 155 mod_hash_t *fdb; /* forwarding database */ 156 157 mod_hash_t *mfdb; /* multicast FDB */ 158 krwlock_t mfdbrw; /* rwlock for mFDB */ 159 160 vio_mblk_pool_t *rxh; /* Receive pool handle */ 161 void (*vsw_switch_frame) 162 (struct vsw *, mblk_t *, int, 163 vsw_port_t *, mac_resource_handle_t); 164 165 /* mac layer */ 166 kmutex_t mac_lock; /* protect fields below */ 167 mac_handle_t mh; 168 mac_rx_handle_t mrh; 169 multiaddress_capab_t maddr; /* Multiple uni addr capable */ 170 const mac_txinfo_t *txinfo; /* MAC tx routine */ 171 boolean_t mstarted; /* Mac Started? */ 172 boolean_t mresources; /* Mac Resources cb? */ 173 174 /* 175 * MAC Ring Resources. 176 */ 177 kmutex_t mac_ring_lock; /* Lock for the table. */ 178 uint32_t mac_ring_tbl_sz; 179 vsw_mac_ring_t *mac_ring_tbl; /* Mac ring table. */ 180 181 kmutex_t hw_lock; /* sync access to HW */ 182 boolean_t recfg_reqd; /* Reconfig of addrs needed */ 183 int promisc_cnt; 184 185 /* Machine Description updates */ 186 mdeg_node_spec_t *inst_spec; 187 mdeg_handle_t mdeg_hdl; 188 mdeg_handle_t mdeg_port_hdl; 189 190 /* if configured as an ethernet interface */ 191 mac_handle_t if_mh; /* MAC handle */ 192 struct ether_addr if_addr; /* interface address */ 193 krwlock_t if_lockrw; 194 uint8_t if_state; /* interface state */ 195 196 mac_addr_slot_t addr_slot; /* Unicast address slot */ 197 int addr_set; /* Addr set where */ 198 199 /* multicast addresses when configured as eth interface */ 200 kmutex_t mca_lock; /* multicast lock */ 201 mcst_addr_t *mcap; /* list of multicast addrs */ 202 203 /* softint related flags */ 204 boolean_t rx_softint; /* Rx softint enabled */ 205 mblk_t *rx_mhead; /* received mblks head */ 206 mblk_t *rx_mtail; /* received mblks tail */ 207 ddi_softint_handle_t soft_handle; /* soft intr handle */ 208 int soft_pri; /* soft int priority */ 209 kmutex_t soft_lock; /* lock for soft intr handler */ 210 } vsw_t; 211 212 /* 213 * The flags that are used by vsw_mac_rx(). 214 */ 215 typedef enum { 216 VSW_MACRX_PROMISC = 0x01, 217 VSW_MACRX_COPYMSG = 0x02, 218 VSW_MACRX_FREEMSG = 0x04 219 } vsw_macrx_flags_t; 220 221 222 #ifdef DEBUG 223 224 extern int vswdbg; 225 extern void vswdebug(vsw_t *vswp, const char *fmt, ...); 226 227 #define D1(...) \ 228 if (vswdbg & 0x01) \ 229 vswdebug(__VA_ARGS__) 230 231 #define D2(...) \ 232 if (vswdbg & 0x02) \ 233 vswdebug(__VA_ARGS__) 234 235 #define D3(...) \ 236 if (vswdbg & 0x04) \ 237 vswdebug(__VA_ARGS__) 238 239 #define DWARN(...) \ 240 if (vswdbg & 0x08) \ 241 vswdebug(__VA_ARGS__) 242 243 #define DERR(...) \ 244 if (vswdbg & 0x10) \ 245 vswdebug(__VA_ARGS__) 246 247 #else 248 249 #define DERR(...) if (0) do { } while (0) 250 #define DWARN(...) if (0) do { } while (0) 251 #define D1(...) if (0) do { } while (0) 252 #define D2(...) if (0) do { } while (0) 253 #define D3(...) if (0) do { } while (0) 254 255 #endif /* DEBUG */ 256 257 258 #ifdef __cplusplus 259 } 260 #endif 261 262 #endif /* _VSW_H */ 263