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_COMMON_H 28 #define _VNET_COMMON_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #include <sys/vio_common.h> 37 #include <sys/vio_mailbox.h> 38 #include <sys/ethernet.h> 39 40 /* 41 * This header file contains definitions common to LDoms Virtual Network 42 * server (vsw) and client (vnet). 43 */ 44 45 /* max # of cookies per frame size */ 46 #define MAX_COOKIES ((ETHERMAX >> MMU_PAGESHIFT) + 2ULL) 47 48 /* initial send sequence number */ 49 #define VNET_ISS 0x1 50 51 #define VNET_IPALIGN 6 /* padding for IP header alignment */ 52 53 #define VNET_NUM_HANDSHAKES 6 /* # of handshake attempts */ 54 55 /* vnet descriptor */ 56 typedef struct vnet_public_desc { 57 vio_dring_entry_hdr_t hdr; /* descriptor header */ 58 uint32_t nbytes; /* data length */ 59 uint32_t ncookies; /* number of data cookies */ 60 ldc_mem_cookie_t memcookie[MAX_COOKIES]; /* data cookies */ 61 } vnet_public_desc_t; 62 63 /* 64 * Vnet in-band descriptor. Used by those vnet clients 65 * such as OBP who do not use descriptor rings. 66 */ 67 typedef struct vnet_ibnd_desc { 68 vio_inband_desc_msg_hdr_t hdr; 69 70 /* payload */ 71 uint32_t nbytes; 72 uint32_t ncookies; 73 ldc_mem_cookie_t memcookie[MAX_COOKIES]; 74 } vnet_ibnd_desc_t; 75 76 #ifdef __cplusplus 77 } 78 #endif 79 80 #endif /* _VNET_COMMON_H */ 81