iopvar.h revision 1.4
1 /* $NetBSD: iopvar.h,v 1.4 2001/01/03 21:04:01 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Doran. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, 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. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _I2O_IOPVAR_H_ 40 #define _I2O_IOPVAR_H_ 41 42 /* Per-IOP statistics; not particularly useful at the moment. */ 43 struct iop_stat { 44 int is_cur_swqueue; 45 int is_peak_swqueue; 46 int is_cur_hwqueue; 47 int is_peak_hwqueue; 48 int64_t is_requests; 49 int64_t is_bytes; 50 }; 51 52 /* 53 * XXX The following should be adjusted if and when: 54 * 55 * o MAXPHYS exceeds 64kB. 56 * o A new message or reply is defined in i2o.h. 57 * 58 * As it stands, these make for a message frame of 200 bytes. 59 */ 60 #define IOP_MAX_SGL_SIZE 132 /* Maximum S/G list size */ 61 #define IOP_MAX_BASE_MSG_SIZE 68 /* Maximum base message size */ 62 #define IOP_MAX_XFER 65536 /* Maximum transfer size */ 63 #define IOP_MAX_MSG_XFERS 3 /* Maximum transfer count per msg */ 64 65 #define IOP_MAX_SGL_ENTRIES (IOP_MAX_SGL_SIZE / 8) 66 #define IOP_MAX_MSG_SIZE (IOP_MAX_BASE_MSG_SIZE + IOP_MAX_SGL_SIZE) 67 68 /* Linux sez that some IOPs don't like reply frame sizes other than 128. */ 69 #define IOP_MAX_REPLY_SIZE 128 70 71 #define IOP_MAX_HW_QUEUECNT 256 72 #define IOP_MAX_HW_REPLYCNT 256 73 74 struct iop_tidmap { 75 u_short it_tid; 76 u_short it_flags; 77 char it_dvname[sizeof(((struct device *)NULL)->dv_xname)]; 78 }; 79 #define IT_CONFIGURED 0x02 /* target configured */ 80 81 #ifdef _KERNEL 82 83 #include "locators.h" 84 85 /* 86 * Transfer descriptor. 87 */ 88 struct iop_xfer { 89 bus_dmamap_t ix_map; 90 u_int ix_size; 91 u_int ix_flags; 92 }; 93 #define IX_IN 0x0001 /* Data transfer from IOP */ 94 #define IX_OUT 0x0002 /* Data transfer to IOP */ 95 96 /* 97 * Message wrapper. 98 */ 99 struct iop_msg { 100 SIMPLEQ_ENTRY(iop_msg) im_queue; /* Next queued message */ 101 TAILQ_ENTRY(iop_msg) im_hash; /* Hash chain */ 102 u_int im_flags; /* Control flags */ 103 u_int im_tctx; /* Transaction context */ 104 void *im_dvcontext; /* Un*x device context */ 105 u_int32_t im_msg[IOP_MAX_MSG_SIZE / sizeof(u_int32_t)]; 106 struct iop_xfer im_xfer[IOP_MAX_MSG_XFERS]; 107 }; 108 #define IM_SYSMASK 0x00ff 109 #define IM_REPLIED 0x0001 /* Message has been replied to */ 110 #define IM_ALLOCED 0x0002 /* This message wrapper is allocated */ 111 #define IM_SGLOFFADJ 0x0008 /* S/G list offset adjusted */ 112 #define IM_DISCARD 0x0010 /* Discard message wrapper once sent */ 113 #define IM_WAITING 0x0020 /* Waiting for completion */ 114 115 #define IM_USERMASK 0xff00 116 #define IM_NOWAIT 0x0100 /* Don't sleep when processing */ 117 #define IM_NOICTX 0x0200 /* No initiator context field */ 118 #define IM_NOINTR 0x0400 /* Don't interrupt when complete */ 119 #define IM_NOSTATUS 0x0800 /* Don't check status if waiting */ 120 121 struct iop_initiator { 122 LIST_ENTRY(iop_initiator) ii_list; 123 LIST_ENTRY(iop_initiator) ii_hash; 124 125 void (*ii_intr)(struct device *, struct iop_msg *, void *); 126 int (*ii_reconfig)(struct device *); 127 struct device *ii_dv; 128 int ii_flags; 129 int ii_ictx; /* Initiator context */ 130 int ii_stctx; /* Static transaction context */ 131 int ii_tid; 132 }; 133 #define II_DISCARD 0x0001 /* Don't track state; discard msg wrappers */ 134 #define II_CONFIGURED 0x0002 /* Already configured */ 135 #define II_UTILITY 0x0004 /* Utility initiator (not a `real device') */ 136 137 #define IOP_ICTX 0 138 139 /* 140 * Per-IOP context. 141 */ 142 struct iop_softc { 143 struct device sc_dv; /* generic device data */ 144 bus_space_handle_t sc_ioh; /* bus space handle */ 145 bus_space_tag_t sc_iot; /* bus space tag */ 146 bus_dma_tag_t sc_dmat; /* bus DMA tag */ 147 void *sc_ih; /* interrupt handler cookie */ 148 struct lock sc_conflock; /* autoconfiguration lock */ 149 bus_addr_t sc_memaddr; /* register window address */ 150 bus_size_t sc_memsize; /* register window size */ 151 152 struct i2o_hrt *sc_hrt; /* hardware resource table */ 153 struct i2o_lct *sc_lct; /* logical configuration table */ 154 int sc_nlctent; /* number of LCT entries */ 155 struct iop_tidmap *sc_tidmap; /* tid map (per-lct-entry flags) */ 156 struct i2o_status sc_status; /* status */ 157 struct iop_stat sc_stat; /* counters */ 158 int sc_flags; /* IOP-wide flags */ 159 int sc_maxreplycnt; /* reply queue size */ 160 u_int32_t sc_chgindicator;/* autoconfig vs. LCT change ind. */ 161 LIST_HEAD(, iop_initiator) sc_iilist;/* initiator list */ 162 SIMPLEQ_HEAD(,iop_msg) sc_queue;/* software queue */ 163 int sc_maxqueuecnt; /* maximum # of msgs on h/w queue */ 164 struct iop_initiator sc_eventii;/* IOP event handler */ 165 struct proc *sc_reconf_proc;/* reconfiguration process */ 166 caddr_t sc_ptb; 167 168 /* 169 * Reply queue. 170 */ 171 bus_dmamap_t sc_rep_dmamap; 172 int sc_rep_size; 173 bus_addr_t sc_rep_phys; 174 caddr_t sc_rep; 175 }; 176 #define IOP_OPEN 0x01 /* Device interface open */ 177 #define IOP_HAVESTATUS 0x02 /* Successfully retrieved status */ 178 #define IOP_ONLINE 0x04 /* Can use ioctl interface */ 179 180 struct iop_attach_args { 181 int ia_class; /* device class */ 182 int ia_tid; /* target ID */ 183 }; 184 #define iopcf_tid cf_loc[IOPCF_TID] /* TID */ 185 186 void iop_init(struct iop_softc *, const char *); 187 int iop_intr(void *); 188 int iop_lct_get(struct iop_softc *); 189 int iop_param_op(struct iop_softc *, int, int, int, void *, int); 190 int iop_simple_cmd(struct iop_softc *, int, int, int, int, int); 191 void iop_strvis(struct iop_softc *, const char *, int, char *, int); 192 193 int iop_initiator_register(struct iop_softc *, struct iop_initiator *); 194 void iop_initiator_unregister(struct iop_softc *, struct iop_initiator *); 195 196 int iop_msg_alloc(struct iop_softc *, struct iop_initiator *, 197 struct iop_msg **, int); 198 int iop_msg_enqueue(struct iop_softc *, struct iop_msg *, int); 199 void iop_msg_free(struct iop_softc *, struct iop_initiator *, 200 struct iop_msg *); 201 int iop_msg_map(struct iop_softc *, struct iop_msg *, void *, int, int); 202 int iop_msg_send(struct iop_softc *, struct iop_msg *, int); 203 void iop_msg_unmap(struct iop_softc *, struct iop_msg *); 204 205 int iop_util_abort(struct iop_softc *, struct iop_initiator *, int, int, 206 int); 207 int iop_util_claim(struct iop_softc *, struct iop_initiator *, int, int); 208 int iop_util_eventreg(struct iop_softc *, struct iop_initiator *, int); 209 210 #endif /* _KERNEL */ 211 212 /* 213 * ioctl() interface. 214 */ 215 216 struct ioppt_buf { 217 void *ptb_data; 218 size_t ptb_datalen; 219 int ptb_out; 220 }; 221 222 struct ioppt { 223 void *pt_msg; 224 size_t pt_msglen; 225 void *pt_reply; 226 size_t pt_replylen; 227 int pt_timo; 228 int pt_nbufs; 229 struct ioppt_buf pt_bufs[IOP_MAX_MSG_XFERS]; 230 }; 231 232 #define IOPIOCPT _IOWR('u', 0, struct ioppt) 233 #define IOPIOCGLCT _IOWR('u', 1, struct iovec) 234 #define IOPIOCGSTATUS _IOWR('u', 2, struct iovec) 235 #define IOPIOCRECONFIG _IO('u', 3) 236 #define IOPIOCGTIDMAP _IOWR('u', 4, struct iovec) 237 238 #endif /* !_I2O_IOPVAR_H_ */ 239
Indexes created Mon Oct 27 02:09:54 GMT 2025