iopvar.h revision 1.20
1 /* $NetBSD: iopvar.h,v 1.20 2007/07/09 21:00:33 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 kcondvar_t im_cv; /* Notifier */ 66 u_int im_reqstatus; /* Status from reply */ 67 u_int im_detstatus; /* Detailed status code */ 68 struct iop_xfer im_xfer[IOP_MAX_MSG_XFERS]; 69 }; 70 #define IM_SYSMASK 0x00ff 71 #define IM_REPLIED 0x0001 /* Message has been replied to */ 72 #define IM_ALLOCED 0x0002 /* This message wrapper is allocated */ 73 #define IM_SGLOFFADJ 0x0004 /* S/G list offset adjusted */ 74 #define IM_FAIL 0x0008 /* Transaction error returned */ 75 76 #define IM_USERMASK 0xff00 77 #define IM_WAIT 0x0100 /* Wait (sleep) for completion */ 78 #define IM_POLL 0x0200 /* Wait (poll) for completion */ 79 #define IM_NOSTATUS 0x0400 /* Don't check status if waiting */ 80 #define IM_POLL_INTR 0x0800 /* Do send interrupt when polling */ 81 82 struct iop_initiator { 83 LIST_ENTRY(iop_initiator) ii_list; 84 LIST_ENTRY(iop_initiator) ii_hash; 85 86 void (*ii_intr)(struct device *, struct iop_msg *, void *); 87 int (*ii_reconfig)(struct device *); 88 void (*ii_adjqparam)(struct device *, int); 89 90 struct device *ii_dv; 91 kcondvar_t ii_cv; 92 int ii_flags; 93 int ii_ictx; /* Initiator context */ 94 int ii_tid; 95 }; 96 #define II_NOTCTX 0x0001 /* No transaction context */ 97 #define II_CONFIGURED 0x0002 /* Already configured */ 98 #define II_UTILITY 0x0004 /* Utility initiator (not a real device) */ 99 100 #define IOP_ICTX 0 101 #define IOP_INIT_CODE 0x80 102 103 /* 104 * Parameter group op (for async parameter retrievals). 105 */ 106 struct iop_pgop { 107 struct i2o_param_op_list_header olh; 108 struct i2o_param_op_all_template oat; 109 } __attribute__ ((__packed__)); 110 111 /* 112 * Per-IOP context. 113 */ 114 struct iop_softc { 115 struct device sc_dv; /* Generic device data */ 116 bus_space_handle_t sc_ioh; /* Bus space handle */ 117 bus_space_tag_t sc_iot; /* Bus space tag */ 118 bus_dma_tag_t sc_dmat; /* Bus DMA tag */ 119 bus_space_handle_t sc_msg_ioh; /* Message queue bus space handle */ 120 bus_space_tag_t sc_msg_iot; /* Message queue bus space tag */ 121 void *sc_ih; /* Interrupt handler cookie */ 122 123 struct iop_msg *sc_ims; /* Message wrappers */ 124 SLIST_HEAD(, iop_msg) sc_im_freelist; /* Free wrapper list */ 125 kmutex_t sc_intrlock; /* Interrupt level lock */ 126 127 bus_dmamap_t sc_rep_dmamap; /* Reply frames DMA map */ 128 int sc_rep_size; /* Reply frames size */ 129 bus_addr_t sc_rep_phys; /* Reply frames PA */ 130 void * sc_rep; /* Reply frames VA */ 131 132 int sc_maxib; /* Max inbound (-> IOP) queue depth */ 133 int sc_maxob; /* Max outbound (<- IOP) queue depth */ 134 int sc_curib; /* Current inbound queue depth */ 135 int sc_framesize; /* Max msg frame size in bytes */ 136 137 struct i2o_hrt *sc_hrt; /* Hardware resource table */ 138 struct iop_tidmap *sc_tidmap; /* TID map (per-LCT-entry flags) */ 139 struct i2o_lct *sc_lct; /* Logical configuration table */ 140 int sc_nlctent; /* Number of LCT entries */ 141 int sc_flags; /* IOP-wide flags */ 142 u_int32_t sc_chgind; /* Configuration change indicator */ 143 kmutex_t sc_conflock; /* Configuration lock */ 144 kcondvar_t sc_confcv; /* Configuration CV */ 145 lwp_t *sc_reconf_thread;/* Auto reconfiguration process */ 146 LIST_HEAD(, iop_initiator) sc_iilist;/* Initiator list */ 147 int sc_nii; /* Total number of initiators */ 148 int sc_nuii; /* Number of utility initiators */ 149 150 struct iop_initiator sc_eventii;/* IOP event handler */ 151 bus_dmamap_t sc_scr_dmamap; /* Scratch DMA map */ 152 bus_dma_segment_t sc_scr_seg[1];/* Scratch DMA segment */ 153 void * sc_scr; /* Scratch memory VA */ 154 155 bus_space_tag_t sc_bus_memt; /* Parent bus memory tag */ 156 bus_space_tag_t sc_bus_iot; /* Parent but I/O tag */ 157 bus_addr_t sc_memaddr; /* Register window address */ 158 bus_size_t sc_memsize; /* Register window size */ 159 int sc_pcibus; /* PCI bus number */ 160 int sc_pcidev; /* PCI device number */ 161 162 struct i2o_status sc_status; /* Last retrieved status record */ 163 }; 164 #define IOP_OPEN 0x01 /* Device interface open */ 165 #define IOP_HAVESTATUS 0x02 /* Successfully retrieved status */ 166 #define IOP_ONLINE 0x04 /* Can use ioctl interface */ 167 168 struct iop_attach_args { 169 int ia_class; /* device class */ 170 int ia_tid; /* target ID */ 171 }; 172 173 void iop_init(struct iop_softc *, const char *); 174 int iop_intr(void *); 175 int iop_lct_get(struct iop_softc *); 176 int iop_print_ident(struct iop_softc *, int); 177 int iop_post(struct iop_softc *, u_int32_t *); 178 int iop_reconfigure(struct iop_softc *, u_int); 179 int iop_status_get(struct iop_softc *, int); 180 int iop_simple_cmd(struct iop_softc *, int, int, int, int, int); 181 void iop_strvis(struct iop_softc *, const char *, int, char *, int); 182 183 void iop_initiator_register(struct iop_softc *, struct iop_initiator *); 184 void iop_initiator_unregister(struct iop_softc *, struct iop_initiator *); 185 186 struct iop_msg *iop_msg_alloc(struct iop_softc *, int); 187 void iop_msg_free(struct iop_softc *, struct iop_msg *); 188 int iop_msg_map(struct iop_softc *, struct iop_msg *, u_int32_t *, void *, 189 int, int, struct proc *); 190 int iop_msg_map_bio(struct iop_softc *, struct iop_msg *, u_int32_t *, 191 void *, int, int); 192 int iop_msg_post(struct iop_softc *, struct iop_msg *, void *, int); 193 void iop_msg_unmap(struct iop_softc *, struct iop_msg *); 194 195 int iop_field_get_all(struct iop_softc *, int, int, void *, int, 196 struct iop_initiator *); 197 int iop_field_set(struct iop_softc *, int, int, void *, int, int); 198 int iop_table_add_row(struct iop_softc *, int, int, void *, int, int); 199 int iop_table_clear(struct iop_softc *, int, int); 200 int iop_table_del_row(struct iop_softc *, int, int, int); 201 int iop_table_get_row(struct iop_softc *, int, int, void *, int, int); 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 /* !_I2O_IOPVAR_H_ */ 209
Indexes created Sat Oct 25 07:10:08 GMT 2025