iopvar.h revision 1.2.2.3
1 /* $NetBSD: iopvar.h,v 1.2.2.3 2000/12/08 09:12:19 bouyer 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 #ifdef _KERNEL 75 76 #include "locators.h" 77 78 /* 79 * Transfer descriptor. 80 */ 81 struct iop_xfer { 82 bus_dmamap_t ix_map; 83 u_int ix_size; 84 u_int ix_flags; 85 }; 86 #define IX_IN 0x0001 /* Data transfer from IOP */ 87 #define IX_OUT 0x0002 /* Data transfer to IOP */ 88 89 /* 90 * Message wrapper. 91 */ 92 struct iop_msg { 93 SIMPLEQ_ENTRY(iop_msg) im_queue; /* Next queued message */ 94 TAILQ_ENTRY(iop_msg) im_hash; /* Hash chain */ 95 u_int im_flags; /* Control flags */ 96 u_int im_tctx; /* Transaction context */ 97 void *im_dvcontext; /* Un*x device context */ 98 u_int32_t im_msg[IOP_MAX_MSG_SIZE / sizeof(u_int32_t)]; 99 struct iop_xfer im_xfer[IOP_MAX_MSG_XFERS]; 100 }; 101 #define IM_SYSMASK 0x00ff 102 #define IM_REPLIED 0x0001 /* Message has been replied to */ 103 #define IM_ALLOCED 0x0002 /* This message wrapper is allocated */ 104 #define IM_SGLOFFADJ 0x0008 /* S/G list offset adjusted */ 105 #define IM_DISCARD 0x0010 /* Discard message wrapper once sent */ 106 #define IM_WAITING 0x0020 /* Waiting for completion */ 107 108 #define IM_USERMASK 0xff00 109 #define IM_NOWAIT 0x0100 /* Don't sleep when processing */ 110 #define IM_NOICTX 0x0200 /* No initiator context field */ 111 #define IM_NOINTR 0x0400 /* Don't interrupt when complete */ 112 #define IM_NOSTATUS 0x0800 /* Don't check status if waiting */ 113 114 struct iop_initiator { 115 LIST_ENTRY(iop_initiator) ii_list; 116 LIST_ENTRY(iop_initiator) ii_hash; 117 118 void (*ii_intr)(struct device *, struct iop_msg *, void *); 119 int (*ii_reconfig)(struct device *); 120 struct device *ii_dv; 121 int ii_flags; 122 int ii_ictx; /* Initiator context */ 123 int ii_stctx; /* Static transaction context */ 124 int ii_tid; 125 }; 126 #define II_DISCARD 0x0001 /* Don't track state; discard msg wrappers */ 127 #define II_CONFIGURED 0x0002 /* Already configured */ 128 #define II_UTILITY 0x0004 /* Utility initiator (not a `real device') */ 129 130 #define IOP_ICTX 0 131 132 struct iop_tidmap { 133 u_short it_tid; 134 u_short it_flags; 135 }; 136 #define IT_CONFIGURED 0x02 /* target configured */ 137 138 /* 139 * Per-IOP context. 140 */ 141 struct iop_softc { 142 struct device sc_dv; /* generic device data */ 143 bus_space_handle_t sc_ioh; /* bus space handle */ 144 bus_space_tag_t sc_iot; /* bus space tag */ 145 bus_dma_tag_t sc_dmat; /* bus DMA tag */ 146 void *sc_ih; /* interrupt handler cookie */ 147 struct lock sc_conflock; /* autoconfiguration lock */ 148 bus_addr_t sc_memaddr; /* register window address */ 149 bus_size_t sc_memsize; /* register window size */ 150 151 struct i2o_hrt *sc_hrt; /* hardware resource table */ 152 struct i2o_lct *sc_lct; /* logical configuration table */ 153 int sc_nlctent; /* number of LCT entries */ 154 struct iop_tidmap *sc_tidmap; /* tid map (per-lct-entry flags) */ 155 struct i2o_status sc_status; /* status */ 156 struct iop_stat sc_stat; /* counters */ 157 int sc_flags; /* IOP-wide flags */ 158 int sc_maxreplycnt; /* reply queue size */ 159 u_int32_t sc_chgindicator;/* autoconfig vs. LCT change ind. */ 160 LIST_HEAD(, iop_initiator) sc_iilist;/* initiator list */ 161 SIMPLEQ_HEAD(,iop_msg) sc_queue;/* software queue */ 162 int sc_maxqueuecnt; /* maximum # of msgs on h/w queue */ 163 struct iop_initiator sc_eventii;/* IOP event handler */ 164 struct proc *sc_reconf_proc;/* reconfiguration process */ 165 166 /* 167 * Reply queue. 168 */ 169 bus_dmamap_t sc_rep_dmamap; 170 int sc_rep_size; 171 bus_addr_t sc_rep_phys; 172 caddr_t sc_rep; 173 }; 174 #define IOP_OPEN 0x01 /* Device interface open */ 175 #define IOP_HAVESTATUS 0x02 /* Successfully retrieved status */ 176 #define IOP_ONLINE 0x04 /* Can use ioctl interface */ 177 178 struct iop_attach_args { 179 int ia_class; /* device class */ 180 int ia_tid; /* target ID */ 181 }; 182 #define iopcf_tid cf_loc[IOPCF_TID] /* TID */ 183 184 void iop_init(struct iop_softc *, const char *); 185 int iop_intr(void *); 186 int iop_lct_get(struct iop_softc *); 187 int iop_param_op(struct iop_softc *, int, int, int, void *, int); 188 int iop_simple_cmd(struct iop_softc *, int, int, int, int, int); 189 void iop_strvis(struct iop_softc *, const char *, int, char *, int); 190 191 int iop_initiator_register(struct iop_softc *, struct iop_initiator *); 192 void iop_initiator_unregister(struct iop_softc *, struct iop_initiator *); 193 194 int iop_msg_alloc(struct iop_softc *, struct iop_initiator *, 195 struct iop_msg **, int); 196 int iop_msg_enqueue(struct iop_softc *, struct iop_msg *, int); 197 void iop_msg_free(struct iop_softc *, struct iop_initiator *, 198 struct iop_msg *); 199 int iop_msg_map(struct iop_softc *, struct iop_msg *, void *, int, int); 200 int iop_msg_send(struct iop_softc *, struct iop_msg *, int); 201 void iop_msg_unmap(struct iop_softc *, struct iop_msg *); 202 203 int iop_util_abort(struct iop_softc *, struct iop_initiator *, int, int, 204 int); 205 int iop_util_claim(struct iop_softc *, struct iop_initiator *, int, int); 206 int iop_util_eventreg(struct iop_softc *, struct iop_initiator *, int); 207 208 #endif /* _KERNEL */ 209 210 /* 211 * ioctl() interface. 212 */ 213 214 struct ioppt_buf { 215 void *ptb_data; 216 size_t ptb_datalen; 217 int ptb_out; 218 }; 219 220 struct ioppt { 221 void *pt_msg; 222 size_t pt_msglen; 223 void *pt_reply; 224 size_t pt_replylen; 225 int pt_timo; 226 int pt_nbufs; 227 struct ioppt_buf pt_bufs[IOP_MAX_MSG_XFERS]; 228 }; 229 230 #define IOPIOCPT _IOWR('u', 0, struct ioppt) 231 #define IOPIOCGLCT _IOW('u', 1, struct iovec) 232 #define IOPIOCGSTATUS _IOW('u', 2, struct iovec) 233 #define IOPIOCRECONFIG _IO('u', 3) 234 235 #endif /* !_I2O_IOPVAR_H_ */ 236
Indexes created Thu Oct 02 01:09:59 GMT 2025