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 #ifndef _VNET_H 28 #define _VNET_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #define VNET_SUCCESS (0) /* successful return */ 37 #define VNET_FAILURE (-1) /* unsuccessful return */ 38 39 #define KMEM_FREE(_p) kmem_free((_p), sizeof (*(_p))) 40 41 #define VNET_NTXDS 512 /* power of 2 tx descriptors */ 42 #define VNET_LDCWD_INTERVAL 1000 /* watchdog freq in msec */ 43 #define VNET_LDCWD_TXTIMEOUT 1000 /* tx timeout in msec */ 44 #define VNET_LDC_MTU 64 /* ldc mtu */ 45 46 /* 47 * vnet proxy transport layer information. There is one instance of this for 48 * every transport being used by a vnet device and a list of these transports 49 * is maintained by vnet. 50 */ 51 typedef struct vp_tl { 52 struct vp_tl *nextp; /* next in list */ 53 mac_register_t *macp; /* transport ops */ 54 char name[LIFNAMSIZ]; /* device name */ 55 major_t major; /* driver major # */ 56 uint_t instance; /* dev instance */ 57 } vp_tl_t; 58 59 /* 60 * Forwarding database (FDB) entry, used by vnet to provide switching 61 * functionality. Each fdb entry corresponds to a destination vnet device 62 * within the ldoms which is directly reachable by invoking a transmit 63 * function provided by a vnet proxy transport layer. Currently, the generic 64 * transport layer adds/removes/modifies entries in fdb. 65 */ 66 typedef struct fdb { 67 struct fdb *nextp; /* next entry in the list */ 68 uint8_t macaddr[ETHERADDRL]; /* destination mac address */ 69 mac_tx_t m_tx; /* transmit function */ 70 void *txarg; /* arg to the transmit func */ 71 } fdb_t; 72 73 /* FDB hash queue head */ 74 typedef struct fdbf_s { 75 fdb_t *headp; /* head of fdb entries */ 76 krwlock_t rwlock; /* protect the list */ 77 } fdb_fanout_t; 78 79 #define VNET_NFDB_HASH 64 /* default no. of hash queues in fdb */ 80 #define VNET_NFDB_HASH_MAX 128 /* max number of hash queues in fdb */ 81 82 /* Hash calculation using the mac address */ 83 #define MACHASH(a, n) ((*(((uchar_t *)(a)) + 0) ^ \ 84 *(((uchar_t *)(a)) + 1) ^ \ 85 *(((uchar_t *)(a)) + 2) ^ \ 86 *(((uchar_t *)(a)) + 3) ^ \ 87 *(((uchar_t *)(a)) + 4) ^ \ 88 *(((uchar_t *)(a)) + 5)) % (uint32_t)n) 89 90 /* rwlock macros */ 91 #define READ_ENTER(x) rw_enter(x, RW_READER) 92 #define WRITE_ENTER(x) rw_enter(x, RW_WRITER) 93 #define RW_EXIT(x) rw_exit(x) 94 95 /* 96 * vnet instance state information 97 */ 98 typedef struct vnet { 99 int instance; /* instance # */ 100 dev_info_t *dip; /* dev_info */ 101 struct vnet *nextp; /* next in list */ 102 mac_handle_t mh; /* handle to GLDv3 mac module */ 103 uchar_t vendor_addr[ETHERADDRL]; /* orig macadr */ 104 uchar_t curr_macaddr[ETHERADDRL]; /* current macadr */ 105 vp_tl_t *tlp; /* list of vp_tl */ 106 krwlock_t trwlock; /* lock for vp_tl list */ 107 char vgen_name[MAXNAMELEN]; /* name of generic tl */ 108 fdb_fanout_t *fdbhp; /* fdb hash queues */ 109 int nfdb_hash; /* num fdb hash queues */ 110 } vnet_t; 111 112 113 114 #ifdef DEBUG 115 /* 116 * debug levels: 117 * DBG_LEVEL1: Function entry/exit tracing 118 * DBG_LEVEL2: Info messages 119 * DBG_LEVEL3: Warning messages 120 * DBG_LEVEL4: Error messages 121 */ 122 123 enum { DBG_LEVEL1 = 0x01, DBG_LEVEL2 = 0x02, DBG_WARN = 0x04, 124 DBG_ERR = 0x08 }; 125 126 #define DBG1(...) do { \ 127 if ((vnet_dbglevel & DBG_LEVEL1) != 0) { \ 128 debug_printf(__func__, __VA_ARGS__); \ 129 } \ 130 _NOTE(CONSTCOND) } while (0) 131 132 #define DBG2(...) do { \ 133 if ((vnet_dbglevel & DBG_LEVEL2) != 0) { \ 134 debug_printf(__func__, __VA_ARGS__); \ 135 } \ 136 _NOTE(CONSTCOND) } while (0) 137 138 #define DWARN(...) do { \ 139 if ((vnet_dbglevel & DBG_WARN) != 0) { \ 140 debug_printf(__func__, __VA_ARGS__); \ 141 } \ 142 _NOTE(CONSTCOND) } while (0) 143 144 #define DERR(...) do { \ 145 if ((vnet_dbglevel & DBG_ERR) != 0) { \ 146 debug_printf(__func__, __VA_ARGS__); \ 147 } \ 148 _NOTE(CONSTCOND) } while (0) 149 150 #else 151 152 #define DBG1(...) if (0) do { } while (0) 153 #define DBG2(...) if (0) do { } while (0) 154 #define DWARN(...) if (0) do { } while (0) 155 #define DERR(...) if (0) do { } while (0) 156 157 #endif 158 159 #ifdef __cplusplus 160 } 161 #endif 162 163 #endif /* _VNET_H */ 164