ispvar.h revision 1.1
1 /* $NetBSD: ispvar.h,v 1.1 1997/03/12 20:44:51 cgd Exp $ */ 2 3 /* 4 * Soft Definitions for for Qlogic ISP SCSI adapters. 5 * 6 * Copyright (c) 1997 by Matthew Jacob (for NASA/Ames Research Center) 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice immediately at the beginning of the file, without modification, 14 * this list of conditions, and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 25 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 */ 34 #ifndef _ISPVAR_H 35 #define _ISPVAR_H 36 37 #include <dev/ic/ispmbox.h> 38 39 /* 40 * Vector for MD code to provide specific services. 41 */ 42 struct ispsoftc; 43 struct ispmdvec { 44 u_int16_t (*dv_rd_reg) __P((struct ispsoftc *, int)); 45 void (*dv_wr_reg) __P((struct ispsoftc *, int, u_int16_t)); 46 vm_offset_t (*dv_mbxdma) 47 __P((struct ispsoftc *, vm_offset_t, u_int32_t)); 48 int (*dv_dmaset) __P((struct ispsoftc *, 49 struct scsi_xfer *, ispreq_t *, u_int8_t *, u_int8_t)); 50 void (*dv_dmaclr) 51 __P((struct ispsoftc *, struct scsi_xfer *, u_int32_t)); 52 void (*dv_reset0) __P((struct ispsoftc *)); 53 void (*dv_reset1) __P((struct ispsoftc *)); 54 u_int16_t * dv_ispfw; /* ptr to f/w */ 55 u_int16_t dv_fwlen; /* length of f/w */ 56 u_int16_t dv_codeorg; /* code ORG for f/w */ 57 /* 58 * Initial values for conf1 register 59 */ 60 u_int16_t dv_conf1; 61 }; 62 63 #define MAX_TARGETS 16 64 #define MAX_LUNS 8 65 66 #define RQUEST_QUEUE_LEN 256 67 #define RESULT_QUEUE_LEN (RQUEST_QUEUE_LEN >> 3) 68 #define QENTRY_LEN 64 69 70 /* 71 * Soft Structure per host adapter 72 */ 73 struct ispsoftc { 74 struct device isp_dev; 75 struct ispmdvec * isp_mdvec; 76 #define isp_name isp_dev.dv_xname 77 struct scsi_link isp_link; 78 u_int8_t isp_max_target; 79 u_int8_t isp_state; 80 /* 81 * Host Adapter Parameters, nominally stored in NVRAM 82 */ 83 u_int16_t isp_adapter_enabled : 1, 84 isp_req_ack_active_neg : 1, 85 isp_data_line_active_neg: 1, 86 isp_cmd_dma_burst_enable: 1, 87 isp_data_dma_burst_enabl: 1, 88 isp_fifo_threshold : 2, 89 : 1, 90 isp_initiator_id : 4, 91 isp_async_data_setup : 4; 92 u_int16_t isp_selection_timeout; 93 u_int16_t isp_max_queue_depth; 94 u_int8_t isp_tag_aging; 95 u_int8_t isp_bus_reset_delay; 96 u_int8_t isp_retry_count; 97 u_int8_t isp_retry_delay; 98 struct { 99 u_int8_t dev_flags; /* Device Flags - see below */ 100 u_int8_t exc_throttle; 101 u_int8_t sync_period; 102 u_int8_t sync_offset : 4, 103 dev_enable : 1; 104 } isp_devparam[MAX_TARGETS]; 105 /* 106 * Result and Request Queues. 107 */ 108 volatile u_int8_t isp_reqidx; /* index of next request */ 109 volatile u_int8_t isp_residx; /* index of next result */ 110 volatile u_int8_t isp_sendmarker; 111 volatile u_int8_t isp_seqno; 112 /* 113 * Sheer laziness, but it gets us around the problem 114 * where we don't have a clean way of remembering 115 * which scsi_xfer is bound to which ISP queue entry. 116 * 117 * There are other more clever ways to do this, but, 118 * jeez, so I blow a couple of KB per host adapter... 119 * and it *is* faster. 120 */ 121 volatile struct scsi_xfer *isp_xflist[RQUEST_QUEUE_LEN]; 122 /* 123 * request/result queue 124 */ 125 volatile u_int8_t isp_rquest[RQUEST_QUEUE_LEN][QENTRY_LEN]; 126 volatile u_int8_t isp_result[RESULT_QUEUE_LEN][QENTRY_LEN]; 127 }; 128 129 /* 130 * ISP States 131 */ 132 #define ISP_NILSTATE 0 133 #define ISP_RESETSTATE 1 134 #define ISP_INITSTATE 2 135 #define ISP_RUNSTATE 3 136 137 138 /* 139 * Device Flags 140 */ 141 #define DPARM_DISC 0x80 142 #define DPARM_PARITY 0x40 143 #define DPARM_WIDE 0x20 144 #define DPARM_SYNC 0x10 145 #define DPARM_TQING 0x08 146 #define DPARM_ARQ 0x04 147 #define DPARM_QFRZ 0x02 148 #define DPARM_RENEG 0x01 149 150 #define DPARM_DEFAULT (0xff & ~DPARM_QFRZ) 151 152 153 /* 154 * Macros to read, write ISP registers through MD code 155 */ 156 157 #define ISP_READ(isp, reg) \ 158 (*(isp)->isp_mdvec->dv_rd_reg)((isp), (reg)) 159 160 #define ISP_WRITE(isp, reg, val) \ 161 (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), (val)) 162 163 #define ISP_MBOXDMASETUP(isp, kva, len) \ 164 (*(isp)->isp_mdvec->dv_mbxdma)((isp), (vm_offset_t) (kva), (len)) 165 166 #define ISP_DMASETUP(isp, xs, req, iptrp, optr) \ 167 (*(isp)->isp_mdvec->dv_dmaset)((isp), (xs), (req), (iptrp), (optr)) 168 169 #define ISP_DMAFREE(isp, xs, seqno) \ 170 if ((isp)->isp_mdvec->dv_dmaclr) \ 171 (*(isp)->isp_mdvec->dv_dmaclr)((isp), (xs), (seqno)) 172 173 #define ISP_RESET0(isp) \ 174 if ((isp)->isp_mdvec->dv_reset0) (*(isp)->isp_mdvec->dv_reset0)((isp)) 175 #define ISP_RESET1(isp) \ 176 if ((isp)->isp_mdvec->dv_reset1) (*(isp)->isp_mdvec->dv_reset1)((isp)) 177 178 179 #define ISP_SETBITS(isp, reg, val) \ 180 (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) | (val)) 181 182 #define ISP_CLRBITS(isp, reg, val) \ 183 (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) & ~(val)) 184 185 /* 186 * Function Prototypes 187 */ 188 /* 189 * Reset Hardware. 190 * 191 * Only looks at sc_dev.dv_xname, sc_iot and sc_ioh fields. 192 */ 193 void isp_reset __P((struct ispsoftc *)); 194 195 /* 196 * Initialize Hardware to known state 197 */ 198 void isp_init __P((struct ispsoftc *)); 199 200 /* 201 * Complete attachment of Hardware 202 */ 203 void isp_attach __P((struct ispsoftc *)); 204 205 /* 206 * Free any associated resources prior to decommissioning. 207 */ 208 void isp_uninit __P((struct ispsoftc *)); 209 210 /* 211 * Interrupt Service Routine 212 */ 213 int isp_intr __P((void *)); 214 215 216 217 218 #endif /* _ISPVAR_H */ 219
Indexes created Tue Sep 23 13:09:54 GMT 2025