iopvar.h revision 1.6
1 /* $NetBSD: iopvar.h,v 1.6 2001/04/01 15:02:08 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2000, 2001 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 #include "locators.h" 43 44 /* 45 * Transfer descriptor. 46 */ 47 struct iop_xfer { 48 bus_dmamap_t ix_map; 49 u_int ix_size; 50 u_int ix_flags; 51 }; 52 #define IX_IN 0x0001 /* Data transfer from IOP */ 53 #define IX_OUT 0x0002 /* Data transfer to IOP */ 54 55 /* 56 * Message wrapper. 57 */ 58 struct iop_msg { 59 SLIST_ENTRY(iop_msg) im_chain; /* Next free message */ 60 u_int im_flags; /* Control flags */ 61 u_int im_tctx; /* Transaction context */ 62 void *im_dvcontext; /* Un*x device context */ 63 struct i2o_reply *im_rb; /* Reply buffer */ 64 u_int im_reqstatus; /* Status from reply */ 65 struct iop_xfer im_xfer[IOP_MAX_MSG_XFERS]; 66 }; 67 #define IM_SYSMASK 0x00ff 68 #define IM_REPLIED 0x0001 /* Message has been replied to */ 69 #define IM_ALLOCED 0x0002 /* This message wrapper is allocated */ 70 #define IM_SGLOFFADJ 0x0004 /* S/G list offset adjusted */ 71 #define IM_DISCARD 0x0008 /* Discard message wrapper once sent */ 72 #define IM_FAIL 0x0010 /* Transaction error returned */ 73 74 #define IM_USERMASK 0xff00 75 #define IM_WAIT 0x0100 /* Wait (sleep) for completion */ 76 #define IM_POLL 0x0200 /* Wait (poll) for completion */ 77 #define IM_NOSTATUS 0x0400 /* Don't check status if waiting */ 78 #define IM_POLL_INTR 0x0800 /* Do send interrupt when polling */ 79 80 struct iop_initiator { 81 LIST_ENTRY(iop_initiator) ii_list; 82 LIST_ENTRY(iop_initiator) ii_hash; 83 84 void (*ii_intr)(struct device *, struct iop_msg *, void *); 85 int (*ii_reconfig)(struct device *); 86 void (*ii_adjqparam)(struct device *, int); 87 88 struct device *ii_dv; 89 int ii_flags; 90 int ii_ictx; /* Initiator context */ 91 int ii_tid; 92 }; 93 #define II_DISCARD 0x0001 /* Don't track state; discard msg wrappers */ 94 #define II_CONFIGURED 0x0002 /* Already configured */ 95 #define II_UTILITY 0x0004 /* Utility initiator (not a real device) */ 96 97 #define IOP_ICTX 0 98 #define IOP_INIT_CODE 0x80 99 100 /* 101 * Parameter group op (for async parameter retrievals). 102 */ 103 struct iop_pgop { 104 struct i2o_param_op_list_header olh; 105 struct i2o_param_op_all_template oat; 106 } __attribute__ ((__packed__)); 107 108 /* 109 * Per-IOP context. 110 */ 111 struct iop_softc { 112 struct device sc_dv; /* generic device data */ 113 bus_space_handle_t sc_ioh; /* bus space handle */ 114 bus_space_tag_t sc_iot; /* bus space tag */ 115 bus_dma_tag_t sc_dmat; /* bus DMA tag */ 116 void *sc_ih; /* interrupt handler cookie */ 117 struct lock sc_conflock; /* autoconfiguration lock */ 118 bus_addr_t sc_memaddr; /* register window address */ 119 bus_size_t sc_memsize; /* register window size */ 120 121 struct i2o_hrt *sc_hrt; /* hardware resource table */ 122 struct iop_tidmap *sc_tidmap; /* tid map (per-lct-entry flags) */ 123 struct i2o_lct *sc_lct; /* logical configuration table */ 124 int sc_nlctent; /* number of LCT entries */ 125 int sc_flags; /* IOP-wide flags */ 126 int sc_maxib; 127 int sc_maxob; 128 int sc_curib; 129 u_int32_t sc_chgind; /* autoconfig vs. LCT change ind. */ 130 LIST_HEAD(, iop_initiator) sc_iilist;/* initiator list */ 131 int sc_nii; 132 int sc_nuii; 133 struct iop_initiator sc_eventii;/* IOP event handler */ 134 struct proc *sc_reconf_proc;/* reconfiguration process */ 135 struct iop_msg *sc_ims; 136 SLIST_HEAD(, iop_msg) sc_im_freelist; 137 caddr_t sc_ptb; 138 139 /* 140 * Reply queue. 141 */ 142 bus_dmamap_t sc_rep_dmamap; 143 int sc_rep_size; 144 bus_addr_t sc_rep_phys; 145 caddr_t sc_rep; 146 147 bus_space_tag_t sc_bus_memt; 148 bus_space_tag_t sc_bus_iot; 149 150 struct i2o_status sc_status; /* status */ 151 }; 152 #define IOP_OPEN 0x01 /* Device interface open */ 153 #define IOP_HAVESTATUS 0x02 /* Successfully retrieved status */ 154 #define IOP_ONLINE 0x04 /* Can use ioctl interface */ 155 156 struct iop_attach_args { 157 int ia_class; /* device class */ 158 int ia_tid; /* target ID */ 159 }; 160 #define iopcf_tid cf_loc[IOPCF_TID] /* TID */ 161 162 void iop_init(struct iop_softc *, const char *); 163 int iop_intr(void *); 164 int iop_lct_get(struct iop_softc *); 165 int iop_param_op(struct iop_softc *, int, struct iop_initiator *, int, 166 int, void *, int); 167 int iop_print_ident(struct iop_softc *, int); 168 int iop_simple_cmd(struct iop_softc *, int, int, int, int, int); 169 void iop_strvis(struct iop_softc *, const char *, int, char *, int); 170 171 void iop_initiator_register(struct iop_softc *, struct iop_initiator *); 172 void iop_initiator_unregister(struct iop_softc *, struct iop_initiator *); 173 174 struct iop_msg *iop_msg_alloc(struct iop_softc *, struct iop_initiator *, int); 175 void iop_msg_free(struct iop_softc *, struct iop_msg *); 176 int iop_msg_map(struct iop_softc *, struct iop_msg *, u_int32_t *, void *, 177 int, int); 178 int iop_msg_map_bio(struct iop_softc *, struct iop_msg *, u_int32_t *, 179 void *, int, int); 180 int iop_msg_post(struct iop_softc *, struct iop_msg *, void *, int); 181 void iop_msg_unmap(struct iop_softc *, struct iop_msg *); 182 183 int iop_util_abort(struct iop_softc *, struct iop_initiator *, int, int, 184 int); 185 int iop_util_claim(struct iop_softc *, struct iop_initiator *, int, int); 186 int iop_util_eventreg(struct iop_softc *, struct iop_initiator *, int); 187 188 #endif /* !_I2O_IOPVAR_H_ */ 189
Indexes created Sat Oct 25 16:10:12 GMT 2025