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 2008 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 /* Number of transmit descriptors - must be power of 2 */ 118 #define VSW_RING_NUM_EL 512 119 120 /* 121 * State of interface if switch plumbed as network device. 122 */ 123 #define VSW_IF_REG 0x1 /* interface was registered */ 124 #define VSW_IF_UP 0x2 /* Interface UP */ 125 #define VSW_IF_PROMISC 0x4 /* Interface in promiscious mode */ 126 127 #define VSW_U_P(state) \ 128 (state == (VSW_IF_UP | VSW_IF_PROMISC)) 129 130 /* 131 * Switching modes. 132 */ 133 #define VSW_LAYER2 0x1 /* Layer 2 - MAC switching */ 134 #define VSW_LAYER2_PROMISC 0x2 /* Layer 2 + promisc mode */ 135 #define VSW_LAYER3 0x4 /* Layer 3 - IP switching */ 136 137 #define NUM_SMODES 3 /* number of switching modes */ 138 139 #define VSW_PRI_ETH_DEFINED(vswp) ((vswp)->pri_num_types != 0) 140 141 /* 142 * vsw instance state information. 143 */ 144 typedef struct vsw { 145 int instance; /* instance # */ 146 dev_info_t *dip; /* associated dev_info */ 147 uint64_t regprop; /* "reg" property */ 148 struct vsw *next; /* next in list */ 149 char physname[LIFNAMSIZ]; /* phys-dev */ 150 uint8_t smode[NUM_SMODES]; /* switching mode */ 151 int smode_idx; /* curr pos in smode array */ 152 int smode_num; /* # of modes specified */ 153 kmutex_t swtmout_lock; /* setup switching tmout lock */ 154 boolean_t swtmout_enabled; /* setup switching tmout on */ 155 timeout_id_t swtmout_id; /* setup switching tmout id */ 156 uint32_t switching_setup_done; /* setup switching done */ 157 int mac_open_retries; /* mac_open() retry count */ 158 vsw_port_list_t plist; /* associated ports */ 159 ddi_taskq_t *taskq_p; /* VIO ctrl msg taskq */ 160 mod_hash_t *fdb; /* forwarding database */ 161 162 mod_hash_t *mfdb; /* multicast FDB */ 163 krwlock_t mfdbrw; /* rwlock for mFDB */ 164 165 vio_mblk_pool_t *rxh; /* Receive pool handle */ 166 void (*vsw_switch_frame) 167 (struct vsw *, mblk_t *, int, 168 vsw_port_t *, mac_resource_handle_t); 169 170 /* mac layer */ 171 kmutex_t mac_lock; /* protect fields below */ 172 mac_handle_t mh; 173 mac_rx_handle_t mrh; 174 multiaddress_capab_t maddr; /* Multiple uni addr capable */ 175 const mac_txinfo_t *txinfo; /* MAC tx routine */ 176 boolean_t mstarted; /* Mac Started? */ 177 boolean_t mresources; /* Mac Resources cb? */ 178 179 /* 180 * MAC Ring Resources. 181 */ 182 kmutex_t mac_ring_lock; /* Lock for the table. */ 183 uint32_t mac_ring_tbl_sz; 184 vsw_mac_ring_t *mac_ring_tbl; /* Mac ring table. */ 185 186 kmutex_t hw_lock; /* sync access to HW */ 187 boolean_t recfg_reqd; /* Reconfig of addrs needed */ 188 int promisc_cnt; 189 190 /* Machine Description updates */ 191 mdeg_node_spec_t *inst_spec; 192 mdeg_handle_t mdeg_hdl; 193 mdeg_handle_t mdeg_port_hdl; 194 195 /* if configured as an ethernet interface */ 196 mac_handle_t if_mh; /* MAC handle */ 197 struct ether_addr if_addr; /* interface address */ 198 krwlock_t if_lockrw; 199 uint8_t if_state; /* interface state */ 200 201 mac_addr_slot_t addr_slot; /* Unicast address slot */ 202 int addr_set; /* Addr set where */ 203 204 /* multicast addresses when configured as eth interface */ 205 kmutex_t mca_lock; /* multicast lock */ 206 mcst_addr_t *mcap; /* list of multicast addrs */ 207 208 uint32_t pri_num_types; /* # of priority eth types */ 209 uint16_t *pri_types; /* priority eth types */ 210 vio_mblk_pool_t *pri_tx_vmp; /* tx priority mblk pool */ 211 } vsw_t; 212 213 /* 214 * The flags that are used by vsw_mac_rx(). 215 */ 216 typedef enum { 217 VSW_MACRX_PROMISC = 0x01, 218 VSW_MACRX_COPYMSG = 0x02, 219 VSW_MACRX_FREEMSG = 0x04 220 } vsw_macrx_flags_t; 221 222 223 #ifdef DEBUG 224 225 extern int vswdbg; 226 extern void vswdebug(vsw_t *vswp, const char *fmt, ...); 227 228 #define D1(...) \ 229 if (vswdbg & 0x01) \ 230 vswdebug(__VA_ARGS__) 231 232 #define D2(...) \ 233 if (vswdbg & 0x02) \ 234 vswdebug(__VA_ARGS__) 235 236 #define D3(...) \ 237 if (vswdbg & 0x04) \ 238 vswdebug(__VA_ARGS__) 239 240 #define DWARN(...) \ 241 if (vswdbg & 0x08) \ 242 vswdebug(__VA_ARGS__) 243 244 #define DERR(...) \ 245 if (vswdbg & 0x10) \ 246 vswdebug(__VA_ARGS__) 247 248 #else 249 250 #define DERR(...) if (0) do { } while (0) 251 #define DWARN(...) if (0) do { } while (0) 252 #define D1(...) if (0) do { } while (0) 253 #define D2(...) if (0) do { } while (0) 254 #define D3(...) if (0) do { } while (0) 255 256 #endif /* DEBUG */ 257 258 259 #ifdef __cplusplus 260 } 261 #endif 262 263 #endif /* _VSW_H */ 264