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 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _DDM2S_H 27 #define _DDM2S_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #define DM2S_MAX_SG 20 /* Max. scatter-gather elements */ 37 #define DM2S_MAX_RETRIES 3 /* Max. number of retries */ 38 39 /* 40 * Instance structure. 41 */ 42 typedef struct dm2s { 43 dev_info_t *ms_dip; /* Devinfo pointer */ 44 major_t ms_major; /* Major number */ 45 uint32_t ms_ppa; /* Device instance */ 46 mkey_t ms_key; /* Mailbox key */ 47 target_id_t ms_target; /* Target-id */ 48 49 ddi_iblock_cookie_t ms_ibcookie; /* Interrupt block cookie */ 50 kmutex_t ms_lock; /* Lock to protect this structure */ 51 kcondvar_t ms_wait; /* Cond. var to signal events */ 52 53 uint32_t ms_mtu; /* MTU supported */ 54 queue_t *ms_rq; /* Read side queue */ 55 queue_t *ms_wq; /* Write side queuee */ 56 uint32_t ms_state; /* State of the device */ 57 58 uint32_t ms_retries; /* Number of retries */ 59 timeout_id_t ms_rq_timeoutid; /* Timeout id for read queue */ 60 timeout_id_t ms_wq_timeoutid; /* Timeout id for write queue */ 61 bufcall_id_t ms_rbufcid; /* Buffcall-id for the read */ 62 63 uint64_t ms_obytes; /* Number of output bytes */ 64 uint64_t ms_ibytes; /* Number of input bytes */ 65 66 uint32_t ms_clean; /* Cleanup flags */ 67 mscat_gath_t ms_sg_rcv; /* Scatter-gather for receive */ 68 mscat_gath_t ms_sg_tx[DM2S_MAX_SG]; /* scatter-gather for Tx */ 69 } dm2s_t; 70 71 /* ms_state flags */ 72 #define DM2S_MB_INITED 0x00000001 /* Mailbox initialized */ 73 #define DM2S_MB_CONN 0x00000002 /* Mailbox in connected state */ 74 #define DM2S_MB_DISC 0x00000004 /* Mailbox is disconnected */ 75 #define DM2S_OPENED 0x00000008 /* Device opened */ 76 77 #define DM2S_MBOX_READY(x) ((x)->ms_state & DM2S_MB_CONN) 78 79 /* ms_clean flags */ 80 #define DM2S_CLEAN_LOCK 0x00000001 81 #define DM2S_CLEAN_CV 0x00000002 82 #define DM2S_CLEAN_NODE 0x00000004 83 84 #ifdef DEBUG 85 /* 86 * Debug levels 87 */ 88 #define DBG_DRV 0x01 /* driver related traces */ 89 #define DBG_MBOX 0x02 /* Mailbox traces */ 90 #define DBG_MESG 0x04 /* Mailbox Message traces */ 91 #define DBG_WARN 0x10 /* warning type traces */ 92 93 static void dm2s_dump_bytes(char *str, uint32_t total_len, 94 uint32_t num_sg, mscat_gath_t *sgp); 95 96 #define DPRINTF(f, x) if (f & dm2s_debug) printf x 97 #define DMPBYTES(s, l, n, sg) dm2s_dump_bytes(s, l, n, sg) 98 99 #else /* DEBUG */ 100 101 #define DPRINTF(f, x) 102 #define DMPBYTES(s, l, n, sg) 103 104 #endif /* DEBUG */ 105 106 #ifdef __cplusplus 107 } 108 #endif 109 110 #endif /* _DDM2S_H */ 111