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 #ifndef _VNET_COMMON_H 28 #define _VNET_COMMON_H 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 #include <sys/vio_common.h> 35 #include <sys/vio_mailbox.h> 36 #include <sys/ethernet.h> 37 38 /* 39 * This header file contains definitions common to LDoms Virtual Network 40 * server (vsw) and client (vnet). 41 */ 42 43 /* max # of cookies per frame size */ 44 #define MAX_COOKIES ((ETHERMAX >> MMU_PAGESHIFT) + 2ULL) 45 46 /* initial send sequence number */ 47 #define VNET_ISS 0x1 48 49 #define VNET_2K (1 << 11) 50 #define VNET_4K (1 << 12) 51 #define VNET_8K (1 << 13) 52 #define VNET_12K ((VNET_8K) + (VNET_4K)) 53 #define VNET_IPALIGN 6 /* padding for IP header alignment */ 54 #define VNET_LDCALIGN 8 /* padding for ldc_mem_copy() align */ 55 #define VNET_ROUNDUP_2K(n) (((n) + (VNET_2K - 1)) & ~(VNET_2K - 1)) 56 #define VNET_ROUNDUP_4K(n) (((n) + (VNET_4K - 1)) & ~(VNET_4K - 1)) 57 #define VNET_ROUNDUP_8K(n) (((n) + (VNET_8K - 1)) & ~(VNET_8K - 1)) 58 59 /* 60 * Maximum MTU value currently supported. MAX_COOKIES for data has been defined 61 * already based on ETHERMAX. Hence we limit the MTU to be within 2 8K pages 62 * and take some additional steps (see related code in .c files) to ensure that 63 * ldc cookies for each data buffer is within the MAX_COOKIES. This allows us 64 * to support Jumbo MTUs without changing the size of the descriptor. 65 */ 66 #define VNET_MAX_MTU 16000 67 68 #define VNET_NUM_HANDSHAKES 6 /* # of handshake attempts */ 69 70 /* vnet descriptor */ 71 typedef struct vnet_public_desc { 72 vio_dring_entry_hdr_t hdr; /* descriptor header */ 73 uint32_t nbytes; /* data length */ 74 uint32_t ncookies; /* number of data cookies */ 75 ldc_mem_cookie_t memcookie[MAX_COOKIES]; /* data cookies */ 76 } vnet_public_desc_t; 77 78 /* 79 * Vnet in-band descriptor. Used by those vnet clients 80 * such as OBP who do not use descriptor rings. 81 */ 82 typedef struct vnet_ibnd_desc { 83 vio_inband_desc_msg_hdr_t hdr; 84 85 /* payload */ 86 uint32_t nbytes; 87 uint32_t ncookies; 88 ldc_mem_cookie_t memcookie[MAX_COOKIES]; 89 } vnet_ibnd_desc_t; 90 91 /* exported functions */ 92 uint64_t vnet_macaddr_strtoul(const uint8_t *macaddr); 93 void vnet_macaddr_ultostr(uint64_t value, uint8_t *macaddr); 94 mblk_t *vnet_vlan_insert_tag(mblk_t *mp, uint16_t vid); 95 mblk_t *vnet_vlan_remove_tag(mblk_t *mp); 96 int vnet_dring_entry_copy(vnet_public_desc_t *dst, vnet_public_desc_t *src, 97 uint8_t mtype, ldc_dring_handle_t handle, uint64_t start, uint64_t stop); 98 int vnet_dring_entry_set_dstate(vnet_public_desc_t *descp, uint8_t mtype, 99 ldc_dring_handle_t handle, uint64_t start, uint64_t stop, uint8_t dstate); 100 101 #ifdef __cplusplus 102 } 103 #endif 104 105 #endif /* _VNET_COMMON_H */ 106