| 1 | /* $FreeBSD: src/sys/dev/iir/iir_ctrl.c,v 1.17 2005/05/06 02:32:34 cperciva Exp $ */ |
| 2 | /* $DragonFly: src/sys/dev/raid/iir/iir_ctrl.c,v 1.13 2007/05/17 21:08:49 dillon Exp $ */ |
| 3 | /*- |
| 4 | * Copyright (c) 2000-03 ICP vortex GmbH |
| 5 | * Copyright (c) 2002-03 Intel Corporation |
| 6 | * Copyright (c) 2003 Adaptec Inc. |
| 7 | * All Rights Reserved |
| 8 | * |
| 9 | * Redistribution and use in source and binary forms, with or without |
| 10 | * modification, are permitted provided that the following conditions |
| 11 | * are met: |
| 12 | * 1. Redistributions of source code must retain the above copyright |
| 13 | * notice, this list of conditions, and the following disclaimer, |
| 14 | * without modification, immediately at the beginning of the file. |
| 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. The name of the author may not be used to endorse or promote products |
| 19 | * derived from this software without specific prior written permission. |
| 20 | * |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR |
| 25 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 31 | * SUCH DAMAGE. |
| 32 | */ |
| 33 | |
| 34 | /* |
| 35 | * iir_ctrl.c: Control functions and /dev entry points for /dev/iir* |
| 36 | * |
| 37 | * Written by: Achim Leubner <achim_leubner@adaptec.com> |
| 38 | * Fixes/Additions: Boji Tony Kannanthanam <boji.t.kannanthanam@intel.com> |
| 39 | * |
| 40 | * $Id: iir_ctrl.c 1.3 2003/08/26 12:31:15 achim Exp $" |
| 41 | */ |
| 42 | |
| 43 | |
| 44 | #include <sys/param.h> |
| 45 | #include <sys/systm.h> |
| 46 | #include <sys/endian.h> |
| 47 | #include <sys/malloc.h> |
| 48 | #include <sys/kernel.h> |
| 49 | #include <sys/uio.h> |
| 50 | #include <sys/bus.h> |
| 51 | #include <sys/conf.h> |
| 52 | #include <sys/stat.h> |
| 53 | #include <sys/device.h> |
| 54 | #include <sys/thread2.h> |
| 55 | |
| 56 | #include <vm/vm.h> |
| 57 | #include <vm/vm_kern.h> |
| 58 | #include <vm/vm_extern.h> |
| 59 | #include <vm/pmap.h> |
| 60 | |
| 61 | #include "iir.h" |
| 62 | |
| 63 | /* Entry points and other prototypes */ |
| 64 | static struct gdt_softc *gdt_minor2softc(int minor_no); |
| 65 | |
| 66 | static d_open_t iir_open; |
| 67 | static d_close_t iir_close; |
| 68 | static d_write_t iir_write; |
| 69 | static d_read_t iir_read; |
| 70 | static d_ioctl_t iir_ioctl; |
| 71 | |
| 72 | #define CDEV_MAJOR IIR_CDEV_MAJOR |
| 73 | |
| 74 | /* Normally, this is a static structure. But we need it in pci/iir_pci.c */ |
| 75 | static struct dev_ops iir_ops = { |
| 76 | { "iir", CDEV_MAJOR, 0 }, |
| 77 | .d_open = iir_open, |
| 78 | .d_close = iir_close, |
| 79 | .d_read = iir_read, |
| 80 | .d_write = iir_write, |
| 81 | .d_ioctl = iir_ioctl, |
| 82 | }; |
| 83 | |
| 84 | #ifndef SDEV_PER_HBA |
| 85 | static int sdev_made = 0; |
| 86 | #endif |
| 87 | extern int gdt_cnt; |
| 88 | extern char ostype[]; |
| 89 | extern char osrelease[]; |
| 90 | extern gdt_statist_t gdt_stat; |
| 91 | |
| 92 | /* |
| 93 | * Given a controller number, |
| 94 | * make a special device and return the cdev_t |
| 95 | */ |
| 96 | cdev_t |
| 97 | gdt_make_dev(int unit) |
| 98 | { |
| 99 | cdev_t dev; |
| 100 | |
| 101 | #ifdef SDEV_PER_HBA |
| 102 | dev = make_dev(&iir_ops, hba2minor(unit), UID_ROOT, GID_OPERATOR, |
| 103 | S_IRUSR | S_IWUSR, "iir%d", unit); |
| 104 | #else |
| 105 | if (sdev_made) |
| 106 | return (0); |
| 107 | dev = make_dev(&iir_ops, 0, UID_ROOT, GID_OPERATOR, |
| 108 | S_IRUSR | S_IWUSR, "iir"); |
| 109 | sdev_made = 1; |
| 110 | #endif |
| 111 | reference_dev(dev); |
| 112 | return (dev); |
| 113 | } |
| 114 | |
| 115 | void |
| 116 | gdt_destroy_dev(cdev_t dev) |
| 117 | { |
| 118 | if (dev != NULL) |
| 119 | destroy_dev(dev); |
| 120 | } |
| 121 | |
| 122 | /* |
| 123 | * Given a minor device number, |
| 124 | * return the pointer to its softc structure |
| 125 | */ |
| 126 | static struct gdt_softc * |
| 127 | gdt_minor2softc(int minor_no) |
| 128 | { |
| 129 | struct gdt_softc *gdt; |
| 130 | int hanum; |
| 131 | |
| 132 | #ifdef SDEV_PER_HBA |
| 133 | hanum = minor2hba(minor_no); |
| 134 | #else |
| 135 | hanum = minor_no; |
| 136 | #endif |
| 137 | |
| 138 | for (gdt = TAILQ_FIRST(&gdt_softcs); |
| 139 | gdt != NULL && gdt->sc_hanum != hanum; |
| 140 | gdt = TAILQ_NEXT(gdt, links)); |
| 141 | |
| 142 | return (gdt); |
| 143 | } |
| 144 | |
| 145 | static int |
| 146 | iir_open(struct dev_open_args *ap) |
| 147 | { |
| 148 | GDT_DPRINTF(GDT_D_DEBUG, ("iir_open()\n")); |
| 149 | |
| 150 | #ifdef SDEV_PER_HBA |
| 151 | int minor_no; |
| 152 | struct gdt_softc *gdt; |
| 153 | |
| 154 | minor_no = minor(dev); |
| 155 | gdt = gdt_minor2softc(minor_no); |
| 156 | if (gdt == NULL) |
| 157 | return (ENXIO); |
| 158 | #endif |
| 159 | |
| 160 | return (0); |
| 161 | } |
| 162 | |
| 163 | static int |
| 164 | iir_close(struct dev_close_args *ap) |
| 165 | { |
| 166 | GDT_DPRINTF(GDT_D_DEBUG, ("iir_close()\n")); |
| 167 | |
| 168 | #ifdef SDEV_PER_HBA |
| 169 | int minor_no; |
| 170 | struct gdt_softc *gdt; |
| 171 | |
| 172 | minor_no = minor(dev); |
| 173 | gdt = gdt_minor2softc(minor_no); |
| 174 | if (gdt == NULL) |
| 175 | return (ENXIO); |
| 176 | #endif |
| 177 | |
| 178 | return (0); |
| 179 | } |
| 180 | |
| 181 | static int |
| 182 | iir_write(struct dev_write_args *ap) |
| 183 | { |
| 184 | GDT_DPRINTF(GDT_D_DEBUG, ("iir_write()\n")); |
| 185 | |
| 186 | #ifdef SDEV_PER_HBA |
| 187 | int minor_no; |
| 188 | struct gdt_softc *gdt; |
| 189 | |
| 190 | minor_no = minor(dev); |
| 191 | gdt = gdt_minor2softc(minor_no); |
| 192 | if (gdt == NULL) |
| 193 | return (ENXIO); |
| 194 | #endif |
| 195 | |
| 196 | return (0); |
| 197 | } |
| 198 | |
| 199 | static int |
| 200 | iir_read(struct dev_read_args *ap) |
| 201 | { |
| 202 | GDT_DPRINTF(GDT_D_DEBUG, ("iir_read()\n")); |
| 203 | |
| 204 | #ifdef SDEV_PER_HBA |
| 205 | int minor_no; |
| 206 | struct gdt_softc *gdt; |
| 207 | |
| 208 | minor_no = minor(dev); |
| 209 | gdt = gdt_minor2softc(minor_no); |
| 210 | if (gdt == NULL) |
| 211 | return (ENXIO); |
| 212 | #endif |
| 213 | |
| 214 | return (0); |
| 215 | } |
| 216 | |
| 217 | /** |
| 218 | * This is the control syscall interface. |
| 219 | * It should be binary compatible with UnixWare, |
| 220 | * if not totally syntatically so. |
| 221 | */ |
| 222 | |
| 223 | static int |
| 224 | iir_ioctl(struct dev_ioctl_args *ap) |
| 225 | { |
| 226 | GDT_DPRINTF(GDT_D_DEBUG, ("iir_ioctl() cmd 0x%lx\n",cmd)); |
| 227 | |
| 228 | #ifdef SDEV_PER_HBA |
| 229 | int minor_no; |
| 230 | struct gdt_softc *gdt; |
| 231 | |
| 232 | minor_no = minor(dev); |
| 233 | gdt = gdt_minor2softc(minor_no); |
| 234 | if (gdt == NULL) |
| 235 | return (ENXIO); |
| 236 | #endif |
| 237 | ++gdt_stat.io_count_act; |
| 238 | if (gdt_stat.io_count_act > gdt_stat.io_count_max) |
| 239 | gdt_stat.io_count_max = gdt_stat.io_count_act; |
| 240 | |
| 241 | switch (ap->a_cmd) { |
| 242 | case GDT_IOCTL_GENERAL: |
| 243 | { |
| 244 | gdt_ucmd_t *ucmd; |
| 245 | struct gdt_softc *gdt; |
| 246 | |
| 247 | ucmd = (gdt_ucmd_t *)ap->a_data; |
| 248 | gdt = gdt_minor2softc(ucmd->io_node); |
| 249 | if (gdt == NULL) |
| 250 | return (ENXIO); |
| 251 | crit_enter(); |
| 252 | TAILQ_INSERT_TAIL(&gdt->sc_ucmd_queue, ucmd, links); |
| 253 | ucmd->complete_flag = FALSE; |
| 254 | crit_exit(); |
| 255 | gdt_next(gdt); |
| 256 | if (!ucmd->complete_flag) |
| 257 | (void) tsleep((void *)ucmd, PCATCH, "iirucw", 0); |
| 258 | break; |
| 259 | } |
| 260 | |
| 261 | case GDT_IOCTL_DRVERS: |
| 262 | case GDT_IOCTL_DRVERS_OLD: |
| 263 | *(int *)ap->a_data = |
| 264 | (IIR_DRIVER_VERSION << 8) | IIR_DRIVER_SUBVERSION; |
| 265 | break; |
| 266 | |
| 267 | case GDT_IOCTL_CTRTYPE: |
| 268 | case GDT_IOCTL_CTRTYPE_OLD: |
| 269 | { |
| 270 | gdt_ctrt_t *p; |
| 271 | struct gdt_softc *gdt; |
| 272 | |
| 273 | p = (gdt_ctrt_t *)ap->a_data; |
| 274 | gdt = gdt_minor2softc(p->io_node); |
| 275 | if (gdt == NULL) |
| 276 | return (ENXIO); |
| 277 | /* only RP controllers */ |
| 278 | p->ext_type = 0x6000 | gdt->sc_device; |
| 279 | if (gdt->sc_vendor == INTEL_VENDOR_ID) { |
| 280 | p->oem_id = OEM_ID_INTEL; |
| 281 | p->type = 0xfd; |
| 282 | /* new -> subdevice into ext_type */ |
| 283 | if (gdt->sc_device >= 0x600) |
| 284 | p->ext_type = 0x6000 | gdt->sc_subdevice; |
| 285 | } else { |
| 286 | p->oem_id = OEM_ID_ICP; |
| 287 | p->type = 0xfe; |
| 288 | /* new -> subdevice into ext_type */ |
| 289 | if (gdt->sc_device >= 0x300) |
| 290 | p->ext_type = 0x6000 | gdt->sc_subdevice; |
| 291 | } |
| 292 | p->info = (gdt->sc_bus << 8) | (gdt->sc_slot << 3); |
| 293 | p->device_id = gdt->sc_device; |
| 294 | p->sub_device_id = gdt->sc_subdevice; |
| 295 | break; |
| 296 | } |
| 297 | |
| 298 | case GDT_IOCTL_OSVERS: |
| 299 | { |
| 300 | gdt_osv_t *p; |
| 301 | |
| 302 | p = (gdt_osv_t *)ap->a_data; |
| 303 | p->oscode = 10; |
| 304 | p->version = osrelease[0] - '0'; |
| 305 | if (osrelease[1] == '.') |
| 306 | p->subversion = osrelease[2] - '0'; |
| 307 | else |
| 308 | p->subversion = 0; |
| 309 | if (osrelease[3] == '.') |
| 310 | p->revision = osrelease[4] - '0'; |
| 311 | else |
| 312 | p->revision = 0; |
| 313 | strcpy(p->name, ostype); |
| 314 | break; |
| 315 | } |
| 316 | |
| 317 | case GDT_IOCTL_CTRCNT: |
| 318 | *(int *)ap->a_data = gdt_cnt; |
| 319 | break; |
| 320 | |
| 321 | case GDT_IOCTL_EVENT: |
| 322 | { |
| 323 | gdt_event_t *p; |
| 324 | |
| 325 | p = (gdt_event_t *)ap->a_data; |
| 326 | if (p->erase == 0xff) { |
| 327 | if (p->dvr.event_source == GDT_ES_TEST) |
| 328 | p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.test); |
| 329 | else if (p->dvr.event_source == GDT_ES_DRIVER) |
| 330 | p->dvr.event_data.size= sizeof(p->dvr.event_data.eu.driver); |
| 331 | else if (p->dvr.event_source == GDT_ES_SYNC) |
| 332 | p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.sync); |
| 333 | else |
| 334 | p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.async); |
| 335 | crit_enter(); |
| 336 | gdt_store_event(p->dvr.event_source, p->dvr.event_idx, |
| 337 | &p->dvr.event_data); |
| 338 | crit_exit(); |
| 339 | } else if (p->erase == 0xfe) { |
| 340 | crit_enter(); |
| 341 | gdt_clear_events(); |
| 342 | crit_exit(); |
| 343 | } else if (p->erase == 0) { |
| 344 | p->handle = gdt_read_event(p->handle, &p->dvr); |
| 345 | } else { |
| 346 | gdt_readapp_event((u_int8_t)p->erase, &p->dvr); |
| 347 | } |
| 348 | break; |
| 349 | } |
| 350 | |
| 351 | case GDT_IOCTL_STATIST: |
| 352 | { |
| 353 | gdt_statist_t *p; |
| 354 | |
| 355 | p = (gdt_statist_t *)ap->a_data; |
| 356 | bcopy(&gdt_stat, p, sizeof(gdt_statist_t)); |
| 357 | break; |
| 358 | } |
| 359 | |
| 360 | default: |
| 361 | break; |
| 362 | } |
| 363 | |
| 364 | --gdt_stat.io_count_act; |
| 365 | return (0); |
| 366 | } |
| 367 | |