iopvar.h revision 1.18.2.1
1 /* $NetBSD: iopvar.h,v 1.18.2.1 2007/04/09 22:09:56 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2000, 2001, 2002, 2007 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 <sys/mutex.h> 43 #include <sys/condvar.h> 44 45 /* 46 * Transfer descriptor. 47 */ 48 struct iop_xfer { 49 bus_dmamap_t ix_map; 50 u_int ix_size; 51 u_int ix_flags; 52 }; 53 #define IX_IN 0x0001 /* Data transfer from IOP */ 54 #define IX_OUT 0x0002 /* Data transfer to IOP */ 55 56 /* 57 * Message wrapper. 58 */ 59 struct iop_msg { 60 SLIST_ENTRY(iop_msg) im_chain; /* Next free message */ 61 u_int im_flags; /* Control flags */ 62 u_int im_tctx; /* Transaction context */ 63 void *im_dvcontext; /* Un*x device context */ 64 struct i2o_reply *im_rb; /* Reply buffer */ 65 u_int im_reqstatus; /* Status from reply */ 66 u_int im_detstatus; /* Detailed status code */ 67 struct iop_xfer im_xfer[IOP_MAX_MSG_XFERS]; 68 }; 69 #define IM_SYSMASK 0x00ff 70 #define IM_REPLIED 0x0001 /* Message has been replied to */ 71 #define IM_ALLOCED 0x0002 /* This message wrapper is allocated */ 72 #define IM_SGLOFFADJ 0x0004 /* S/G list offset adjusted */ 73 #define IM_FAIL 0x0008 /* Transaction error returned */ 74 75 #define IM_USERMASK 0xff00 76 #define IM_WAIT 0x0100 /* Wait (sleep) for completion */ 77 #define IM_POLL 0x0200 /* Wait (poll) for completion */ 78 #define IM_NOSTATUS 0x0400 /* Don't check status if waiting */ 79 #define IM_POLL_INTR 0x0800 /* Do send interrupt when polling */ 80 81 struct iop_initiator { 82 LIST_ENTRY(iop_initiator) ii_list; 83 LIST_ENTRY(iop_initiator) ii_hash; 84 85 void (*ii_intr)(struct device *, struct iop_msg *, void *); 86 int (*ii_reconfig)(struct device *); 87 void (*ii_adjqparam)(struct device *, int); 88 89 struct device *ii_dv; 90 int ii_flags; 91 int ii_ictx; /* Initiator context */ 92 int ii_tid; 93 }; 94 #define II_NOTCTX 0x0001 /* No transaction context */ 95 #define II_CONFIGURED 0x0002 /* Already configured */ 96 #define II_UTILITY 0x0004 /* Utility initiator (not a real device) */ 97 98 #define IOP_ICTX 0 99 #define IOP_INIT_CODE 0x80 100 101 /* 102 * Parameter group op (for async parameter retrievals). 103 */ 104 struct iop_pgop { 105 struct i2o_param_op_list_header olh; 106 struct i2o_param_op_all_template oat; 107 } __attribute__ ((__packed__)); 108 109 /* 110 * Per-IOP context. 111 */ 112 struct iop_softc { 113 struct device sc_dv; /* Generic device data */ 114 bus_space_handle_t sc_ioh; /* Bus space handle */ 115 bus_space_tag_t sc_iot; /* Bus space tag */ 116 bus_dma_tag_t sc_dmat; /* Bus DMA tag */ 117 bus_space_handle_t sc_msg_ioh; /* Message queue bus space handle */ 118 bus_space_tag_t sc_msg_iot; /* Message queue bus space tag */ 119 void *sc_ih; /* Interrupt handler cookie */ 120 121 struct iop_msg *sc_ims; /* Message wrappers */ 122 SLIST_HEAD(, iop_msg) sc_im_freelist; /* Free wrapper list */ 123 124 bus_dmamap_t sc_rep_dmamap; /* Reply frames DMA map */ 125 int sc_rep_size; /* Reply frames size */ 126 bus_addr_t sc_rep_phys; /* Reply frames PA */ 127 void * sc_rep; /* Reply frames VA */ 128 129 int sc_maxib; /* Max inbound (-> IOP) queue depth */ 130 int sc_maxob; /* Max outbound (<- IOP) queue depth */ 131 int sc_curib; /* Current inbound queue depth */ 132 int sc_framesize; /* Max msg frame size in bytes */ 133 134 struct i2o_hrt *sc_hrt; /* Hardware resource table */ 135 struct iop_tidmap *sc_tidmap; /* TID map (per-LCT-entry flags) */ 136 struct i2o_lct *sc_lct; /* Logical configuration table */ 137 int sc_nlctent; /* Number of LCT entries */ 138 int sc_flags; /* IOP-wide flags */ 139 u_int32_t sc_chgind; /* Configuration change indicator */ 140 kmutex_t sc_conflock; /* Configuration lock */ 141 kcondvar_t sc_confcv; /* Configuration CV */ 142 struct lwp *sc_reconf_thread;/* Auto reconfiguration process */ 143 LIST_HEAD(, iop_initiator) sc_iilist;/* Initiator list */ 144 int sc_nii; /* Total number of initiators */ 145 int sc_nuii; /* Number of utility initiators */ 146 147 struct iop_initiator sc_eventii;/* IOP event handler */ 148 bus_dmamap_t sc_scr_dmamap; /* Scratch DMA map */ 149 bus_dma_segment_t sc_scr_seg[1];/* Scratch DMA segment */ 150 void * sc_scr; /* Scratch memory VA */ 151 152 bus_space_tag_t sc_bus_memt; /* Parent bus memory tag */ 153 bus_space_tag_t sc_bus_iot; /* Parent but I/O tag */ 154 bus_addr_t sc_memaddr; /* Register window address */ 155 bus_size_t sc_memsize; /* Register window size */ 156 int sc_pcibus; /* PCI bus number */ 157 int sc_pcidev; /* PCI device number */ 158 159 struct i2o_status sc_status; /* Last retrieved status record */ 160 }; 161 #define IOP_OPEN 0x01 /* Device interface open */ 162 #define IOP_HAVESTATUS 0x02 /* Successfully retrieved status */ 163 #define IOP_ONLINE 0x04 /* Can use ioctl interface */ 164 165 struct iop_attach_args { 166 int ia_class; /* device class */ 167 int ia_tid; /* target ID */ 168 }; 169 170 void iop_init(struct iop_softc *, const char *); 171 int iop_intr(void *); 172 int iop_lct_get(struct iop_softc *); 173 int iop_print_ident(struct iop_softc *, int); 174 int iop_post(struct iop_softc *, u_int32_t *); 175 int iop_reconfigure(struct iop_softc *, u_int); 176 int iop_status_get(struct iop_softc *, int); 177 int iop_simple_cmd(struct iop_softc *, int, int, int, int, int); 178 void iop_strvis(struct iop_softc *, const char *, int, char *, int); 179 180 void iop_initiator_register(struct iop_softc *, struct iop_initiator *); 181 void iop_initiator_unregister(struct iop_softc *, struct iop_initiator *); 182 183 struct iop_msg *iop_msg_alloc(struct iop_softc *, int); 184 void iop_msg_free(struct iop_softc *, struct iop_msg *); 185 int iop_msg_map(struct iop_softc *, struct iop_msg *, u_int32_t *, void *, 186 int, int, struct proc *); 187 int iop_msg_map_bio(struct iop_softc *, struct iop_msg *, u_int32_t *, 188 void *, int, int); 189 int iop_msg_post(struct iop_softc *, struct iop_msg *, void *, int); 190 void iop_msg_unmap(struct iop_softc *, struct iop_msg *); 191 192 int iop_field_get_all(struct iop_softc *, int, int, void *, int, 193 struct iop_initiator *); 194 int iop_field_set(struct iop_softc *, int, int, void *, int, int); 195 int iop_table_add_row(struct iop_softc *, int, int, void *, int, int); 196 int iop_table_clear(struct iop_softc *, int, int); 197 int iop_table_del_row(struct iop_softc *, int, int, int); 198 int iop_table_get_row(struct iop_softc *, int, int, void *, int, int); 199 200 int iop_util_abort(struct iop_softc *, struct iop_initiator *, int, int, 201 int); 202 int iop_util_claim(struct iop_softc *, struct iop_initiator *, int, int); 203 int iop_util_eventreg(struct iop_softc *, struct iop_initiator *, int); 204 205 #endif /* !_I2O_IOPVAR_H_ */ 206
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