| 1 | /* $NetBSD: sbp.c,v 1.36 2014/02/25 18:30:09 pooka Exp $ */ |
| 2 | /*- |
| 3 | * Copyright (c) 2003 Hidetoshi Shimokawa |
| 4 | * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * 3. All advertising materials mentioning features or use of this software |
| 16 | * must display the acknowledgement as bellow: |
| 17 | * |
| 18 | * This product includes software developed by K. Kobayashi and H. Shimokawa |
| 19 | * |
| 20 | * 4. The name of the author may not be used to endorse or promote products |
| 21 | * derived from this software without specific prior written permission. |
| 22 | * |
| 23 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 24 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 25 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 26 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, |
| 27 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 28 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| 29 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 30 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 31 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
| 32 | * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 33 | * POSSIBILITY OF SUCH DAMAGE. |
| 34 | * |
| 35 | * $FreeBSD: src/sys/dev/firewire/sbp.c,v 1.100 2009/02/18 18:41:34 sbruno Exp $ |
| 36 | * |
| 37 | */ |
| 38 | |
| 39 | #include <sys/cdefs.h> |
| 40 | __KERNEL_RCSID(0, "$NetBSD: sbp.c,v 1.36 2014/02/25 18:30:09 pooka Exp $" ); |
| 41 | |
| 42 | |
| 43 | #include <sys/param.h> |
| 44 | #include <sys/device.h> |
| 45 | #include <sys/errno.h> |
| 46 | #include <sys/buf.h> |
| 47 | #include <sys/callout.h> |
| 48 | #include <sys/condvar.h> |
| 49 | #include <sys/kernel.h> |
| 50 | #include <sys/kthread.h> |
| 51 | #include <sys/malloc.h> |
| 52 | #include <sys/mutex.h> |
| 53 | #include <sys/proc.h> |
| 54 | #include <sys/sysctl.h> |
| 55 | |
| 56 | #include <sys/bus.h> |
| 57 | |
| 58 | #include <dev/scsipi/scsi_spc.h> |
| 59 | #include <dev/scsipi/scsi_all.h> |
| 60 | #include <dev/scsipi/scsipi_all.h> |
| 61 | #include <dev/scsipi/scsiconf.h> |
| 62 | #include <dev/scsipi/scsipiconf.h> |
| 63 | |
| 64 | #include <dev/ieee1394/firewire.h> |
| 65 | #include <dev/ieee1394/firewirereg.h> |
| 66 | #include <dev/ieee1394/fwdma.h> |
| 67 | #include <dev/ieee1394/iec13213.h> |
| 68 | #include <dev/ieee1394/sbp.h> |
| 69 | |
| 70 | #include "locators.h" |
| 71 | |
| 72 | |
| 73 | #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \ |
| 74 | && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2)) |
| 75 | |
| 76 | #define SBP_NUM_TARGETS 8 /* MAX 64 */ |
| 77 | #define SBP_NUM_LUNS 64 |
| 78 | #define SBP_MAXPHYS MIN(MAXPHYS, (512*1024) /* 512KB */) |
| 79 | #define SBP_DMA_SIZE PAGE_SIZE |
| 80 | #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res) |
| 81 | #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb)) |
| 82 | #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS) |
| 83 | |
| 84 | /* |
| 85 | * STATUS FIFO addressing |
| 86 | * bit |
| 87 | * ----------------------- |
| 88 | * 0- 1( 2): 0 (alignment) |
| 89 | * 2- 9( 8): lun |
| 90 | * 10-31(14): unit |
| 91 | * 32-47(16): SBP_BIND_HI |
| 92 | * 48-64(16): bus_id, node_id |
| 93 | */ |
| 94 | #define SBP_BIND_HI 0x1 |
| 95 | #define SBP_DEV2ADDR(u, l) \ |
| 96 | (((uint64_t)SBP_BIND_HI << 32) |\ |
| 97 | (((u) & 0x3fff) << 10) |\ |
| 98 | (((l) & 0xff) << 2)) |
| 99 | #define SBP_ADDR2UNIT(a) (((a) >> 10) & 0x3fff) |
| 100 | #define SBP_ADDR2LUN(a) (((a) >> 2) & 0xff) |
| 101 | #define SBP_INITIATOR 7 |
| 102 | |
| 103 | static const char *orb_fun_name[] = { |
| 104 | ORB_FUN_NAMES |
| 105 | }; |
| 106 | |
| 107 | static int debug = 0; |
| 108 | static int auto_login = 1; |
| 109 | static int max_speed = -1; |
| 110 | static int sbp_cold = 1; |
| 111 | static int ex_login = 1; |
| 112 | static int login_delay = 1000; /* msec */ |
| 113 | static int scan_delay = 500; /* msec */ |
| 114 | static int use_doorbell = 0; |
| 115 | static int sbp_tags = 0; |
| 116 | |
| 117 | static int sysctl_sbp_verify(SYSCTLFN_PROTO, int lower, int upper); |
| 118 | static int sysctl_sbp_verify_max_speed(SYSCTLFN_PROTO); |
| 119 | static int sysctl_sbp_verify_tags(SYSCTLFN_PROTO); |
| 120 | |
| 121 | /* |
| 122 | * Setup sysctl(3) MIB, hw.sbp.* |
| 123 | * |
| 124 | * TBD condition CTLFLAG_PERMANENT on being a module or not |
| 125 | */ |
| 126 | SYSCTL_SETUP(sysctl_sbp, "sysctl sbp(4) subtree setup" ) |
| 127 | { |
| 128 | int rc, sbp_node_num; |
| 129 | const struct sysctlnode *node; |
| 130 | |
| 131 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 132 | CTLFLAG_PERMANENT, CTLTYPE_NODE, "sbp" , |
| 133 | SYSCTL_DESCR("sbp controls" ), NULL, 0, NULL, |
| 134 | 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) |
| 135 | goto err; |
| 136 | sbp_node_num = node->sysctl_num; |
| 137 | |
| 138 | /* sbp auto login flag */ |
| 139 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 140 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, |
| 141 | "auto_login" , SYSCTL_DESCR("SBP perform login automatically" ), |
| 142 | NULL, 0, &auto_login, |
| 143 | 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) |
| 144 | goto err; |
| 145 | |
| 146 | /* sbp max speed */ |
| 147 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 148 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, |
| 149 | "max_speed" , SYSCTL_DESCR("SBP transfer max speed" ), |
| 150 | sysctl_sbp_verify_max_speed, 0, &max_speed, |
| 151 | 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) |
| 152 | goto err; |
| 153 | |
| 154 | /* sbp exclusive login flag */ |
| 155 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 156 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, |
| 157 | "exclusive_login" , SYSCTL_DESCR("SBP enable exclusive login" ), |
| 158 | NULL, 0, &ex_login, |
| 159 | 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) |
| 160 | goto err; |
| 161 | |
| 162 | /* sbp login delay */ |
| 163 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 164 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, |
| 165 | "login_delay" , SYSCTL_DESCR("SBP login delay in msec" ), |
| 166 | NULL, 0, &login_delay, |
| 167 | 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) |
| 168 | goto err; |
| 169 | |
| 170 | /* sbp scan delay */ |
| 171 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 172 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, |
| 173 | "scan_delay" , SYSCTL_DESCR("SBP scan delay in msec" ), |
| 174 | NULL, 0, &scan_delay, |
| 175 | 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) |
| 176 | goto err; |
| 177 | |
| 178 | /* sbp use doorbell flag */ |
| 179 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 180 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, |
| 181 | "use_doorbell" , SYSCTL_DESCR("SBP use doorbell request" ), |
| 182 | NULL, 0, &use_doorbell, |
| 183 | 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) |
| 184 | goto err; |
| 185 | |
| 186 | /* sbp force tagged queuing */ |
| 187 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 188 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, |
| 189 | "tags" , SYSCTL_DESCR("SBP tagged queuing support" ), |
| 190 | sysctl_sbp_verify_tags, 0, &sbp_tags, |
| 191 | 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) |
| 192 | goto err; |
| 193 | |
| 194 | /* sbp driver debug flag */ |
| 195 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 196 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, |
| 197 | "sbp_debug" , SYSCTL_DESCR("SBP debug flag" ), |
| 198 | NULL, 0, &debug, |
| 199 | 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) |
| 200 | goto err; |
| 201 | |
| 202 | return; |
| 203 | |
| 204 | err: |
| 205 | aprint_error("%s: sysctl_createv failed (rc = %d)\n" , __func__, rc); |
| 206 | } |
| 207 | |
| 208 | static int |
| 209 | sysctl_sbp_verify(SYSCTLFN_ARGS, int lower, int upper) |
| 210 | { |
| 211 | int error, t; |
| 212 | struct sysctlnode node; |
| 213 | |
| 214 | node = *rnode; |
| 215 | t = *(int*)rnode->sysctl_data; |
| 216 | node.sysctl_data = &t; |
| 217 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
| 218 | if (error || newp == NULL) |
| 219 | return error; |
| 220 | |
| 221 | if (t < lower || t > upper) |
| 222 | return EINVAL; |
| 223 | |
| 224 | *(int*)rnode->sysctl_data = t; |
| 225 | |
| 226 | return 0; |
| 227 | } |
| 228 | |
| 229 | static int |
| 230 | sysctl_sbp_verify_max_speed(SYSCTLFN_ARGS) |
| 231 | { |
| 232 | |
| 233 | return sysctl_sbp_verify(SYSCTLFN_CALL(rnode), 0, FWSPD_S400); |
| 234 | } |
| 235 | |
| 236 | static int |
| 237 | sysctl_sbp_verify_tags(SYSCTLFN_ARGS) |
| 238 | { |
| 239 | |
| 240 | return sysctl_sbp_verify(SYSCTLFN_CALL(rnode), -1, 1); |
| 241 | } |
| 242 | |
| 243 | #define NEED_RESPONSE 0 |
| 244 | |
| 245 | #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE) |
| 246 | #ifdef __sparc64__ /* iommu */ |
| 247 | #define SBP_IND_MAX howmany(SBP_MAXPHYS, SBP_SEG_MAX) |
| 248 | #else |
| 249 | #define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE) |
| 250 | #endif |
| 251 | struct sbp_ocb { |
| 252 | uint32_t orb[8]; |
| 253 | #define IND_PTR_OFFSET (sizeof(uint32_t) * 8) |
| 254 | struct ind_ptr ind_ptr[SBP_IND_MAX]; |
| 255 | struct scsipi_xfer *xs; |
| 256 | struct sbp_dev *sdev; |
| 257 | uint16_t index; |
| 258 | uint16_t flags; /* XXX should be removed */ |
| 259 | bus_dmamap_t dmamap; |
| 260 | bus_addr_t bus_addr; |
| 261 | STAILQ_ENTRY(sbp_ocb) ocb; |
| 262 | }; |
| 263 | |
| 264 | #define SBP_ORB_DMA_SYNC(dma, i, op) \ |
| 265 | bus_dmamap_sync((dma).dma_tag, (dma).dma_map, \ |
| 266 | sizeof(struct sbp_ocb) * (i), \ |
| 267 | sizeof(ocb->orb) + sizeof(ocb->ind_ptr), (op)); |
| 268 | |
| 269 | #define OCB_ACT_MGM 0 |
| 270 | #define OCB_ACT_CMD 1 |
| 271 | #define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo)) |
| 272 | |
| 273 | struct sbp_dev{ |
| 274 | #define SBP_DEV_RESET 0 /* accept login */ |
| 275 | #define SBP_DEV_LOGIN 1 /* to login */ |
| 276 | #if 0 |
| 277 | #define SBP_DEV_RECONN 2 /* to reconnect */ |
| 278 | #endif |
| 279 | #define SBP_DEV_TOATTACH 3 /* to attach */ |
| 280 | #define SBP_DEV_PROBE 4 /* scan lun */ |
| 281 | #define SBP_DEV_ATTACHED 5 /* in operation */ |
| 282 | #define SBP_DEV_DEAD 6 /* unavailable unit */ |
| 283 | #define SBP_DEV_RETRY 7 /* unavailable unit */ |
| 284 | uint8_t status:4, |
| 285 | timeout:4; |
| 286 | uint8_t type; |
| 287 | uint16_t lun_id; |
| 288 | uint16_t freeze; |
| 289 | #define ORB_LINK_DEAD (1 << 0) |
| 290 | #define VALID_LUN (1 << 1) |
| 291 | #define ORB_POINTER_ACTIVE (1 << 2) |
| 292 | #define ORB_POINTER_NEED (1 << 3) |
| 293 | #define ORB_DOORBELL_ACTIVE (1 << 4) |
| 294 | #define ORB_DOORBELL_NEED (1 << 5) |
| 295 | #define ORB_SHORTAGE (1 << 6) |
| 296 | uint16_t flags; |
| 297 | struct scsipi_periph *periph; |
| 298 | struct sbp_target *target; |
| 299 | struct fwdma_alloc dma; |
| 300 | struct sbp_login_res *login; |
| 301 | struct callout login_callout; |
| 302 | struct sbp_ocb *ocb; |
| 303 | STAILQ_HEAD(, sbp_ocb) ocbs; |
| 304 | STAILQ_HEAD(, sbp_ocb) free_ocbs; |
| 305 | struct sbp_ocb *last_ocb; |
| 306 | char vendor[32]; |
| 307 | char product[32]; |
| 308 | char revision[10]; |
| 309 | char bustgtlun[32]; |
| 310 | }; |
| 311 | |
| 312 | struct sbp_target { |
| 313 | int target_id; |
| 314 | int num_lun; |
| 315 | struct sbp_dev **luns; |
| 316 | struct sbp_softc *sbp; |
| 317 | struct fw_device *fwdev; |
| 318 | uint32_t mgm_hi, mgm_lo; |
| 319 | struct sbp_ocb *mgm_ocb_cur; |
| 320 | STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue; |
| 321 | struct callout mgm_ocb_timeout; |
| 322 | STAILQ_HEAD(, fw_xfer) xferlist; |
| 323 | int n_xfer; |
| 324 | }; |
| 325 | |
| 326 | struct sbp_softc { |
| 327 | struct firewire_dev_comm sc_fd; |
| 328 | struct scsipi_adapter sc_adapter; |
| 329 | struct scsipi_channel sc_channel; |
| 330 | device_t sc_bus; |
| 331 | struct lwp *sc_lwp; |
| 332 | struct sbp_target sc_target; |
| 333 | struct fw_bind sc_fwb; |
| 334 | bus_dma_tag_t sc_dmat; |
| 335 | struct timeval sc_last_busreset; |
| 336 | int sc_flags; |
| 337 | kmutex_t sc_mtx; |
| 338 | kcondvar_t sc_cv; |
| 339 | }; |
| 340 | |
| 341 | MALLOC_DEFINE(M_SBP, "sbp" , "SBP-II/IEEE1394" ); |
| 342 | MALLOC_DECLARE(M_SBP); |
| 343 | |
| 344 | |
| 345 | static int sbpmatch(device_t, cfdata_t, void *); |
| 346 | static void sbpattach(device_t, device_t, void *); |
| 347 | static int sbpdetach(device_t, int); |
| 348 | |
| 349 | static void sbp_scsipi_request(struct scsipi_channel *, scsipi_adapter_req_t, |
| 350 | void *); |
| 351 | static void sbp_minphys(struct buf *); |
| 352 | |
| 353 | static void sbp_show_sdev_info(struct sbp_dev *); |
| 354 | static void sbp_alloc_lun(struct sbp_target *); |
| 355 | static struct sbp_target *sbp_alloc_target(struct sbp_softc *, |
| 356 | struct fw_device *); |
| 357 | static void sbp_probe_lun(struct sbp_dev *); |
| 358 | static void sbp_login_callout(void *); |
| 359 | static void sbp_login(struct sbp_dev *); |
| 360 | static void sbp_probe_target(void *); |
| 361 | static void sbp_post_busreset(void *); |
| 362 | static void sbp_post_explore(void *); |
| 363 | #if NEED_RESPONSE |
| 364 | static void sbp_loginres_callback(struct fw_xfer *); |
| 365 | #endif |
| 366 | static inline void sbp_xfer_free(struct fw_xfer *); |
| 367 | static void sbp_reset_start_callback(struct fw_xfer *); |
| 368 | static void sbp_reset_start(struct sbp_dev *); |
| 369 | static void sbp_mgm_callback(struct fw_xfer *); |
| 370 | static void sbp_scsipi_scan_target(void *); |
| 371 | static inline void sbp_scan_dev(struct sbp_dev *); |
| 372 | static void sbp_do_attach(struct fw_xfer *); |
| 373 | static void sbp_agent_reset_callback(struct fw_xfer *); |
| 374 | static void sbp_agent_reset(struct sbp_dev *); |
| 375 | static void sbp_busy_timeout_callback(struct fw_xfer *); |
| 376 | static void sbp_busy_timeout(struct sbp_dev *); |
| 377 | static void sbp_orb_pointer_callback(struct fw_xfer *); |
| 378 | static void sbp_orb_pointer(struct sbp_dev *, struct sbp_ocb *); |
| 379 | static void sbp_doorbell_callback(struct fw_xfer *); |
| 380 | static void sbp_doorbell(struct sbp_dev *); |
| 381 | static struct fw_xfer *sbp_write_cmd(struct sbp_dev *, int, int); |
| 382 | static void sbp_mgm_orb(struct sbp_dev *, int, struct sbp_ocb *); |
| 383 | static void sbp_print_scsi_cmd(struct sbp_ocb *); |
| 384 | static void sbp_scsi_status(struct sbp_status *, struct sbp_ocb *); |
| 385 | static void sbp_fix_inq_data(struct sbp_ocb *); |
| 386 | static void sbp_recv(struct fw_xfer *); |
| 387 | static int sbp_logout_all(struct sbp_softc *); |
| 388 | static void sbp_free_sdev(struct sbp_dev *); |
| 389 | static void sbp_free_target(struct sbp_target *); |
| 390 | static void sbp_scsipi_detach_sdev(struct sbp_dev *); |
| 391 | static void sbp_scsipi_detach_target(struct sbp_target *); |
| 392 | static void sbp_target_reset(struct sbp_dev *, int); |
| 393 | static void sbp_mgm_timeout(void *); |
| 394 | static void sbp_timeout(void *); |
| 395 | static void sbp_action1(struct sbp_softc *, struct scsipi_xfer *); |
| 396 | static void sbp_execute_ocb(struct sbp_ocb *, bus_dma_segment_t *, int); |
| 397 | static struct sbp_ocb *sbp_dequeue_ocb(struct sbp_dev *, struct sbp_status *); |
| 398 | static struct sbp_ocb *sbp_enqueue_ocb(struct sbp_dev *, struct sbp_ocb *); |
| 399 | static struct sbp_ocb *sbp_get_ocb(struct sbp_dev *); |
| 400 | static void sbp_free_ocb(struct sbp_dev *, struct sbp_ocb *); |
| 401 | static void sbp_abort_ocb(struct sbp_ocb *, int); |
| 402 | static void sbp_abort_all_ocbs(struct sbp_dev *, int); |
| 403 | |
| 404 | |
| 405 | static const char *orb_status0[] = { |
| 406 | /* 0 */ "No additional information to report" , |
| 407 | /* 1 */ "Request type not supported" , |
| 408 | /* 2 */ "Speed not supported" , |
| 409 | /* 3 */ "Page size not supported" , |
| 410 | /* 4 */ "Access denied" , |
| 411 | /* 5 */ "Logical unit not supported" , |
| 412 | /* 6 */ "Maximum payload too small" , |
| 413 | /* 7 */ "Reserved for future standardization" , |
| 414 | /* 8 */ "Resources unavailable" , |
| 415 | /* 9 */ "Function rejected" , |
| 416 | /* A */ "Login ID not recognized" , |
| 417 | /* B */ "Dummy ORB completed" , |
| 418 | /* C */ "Request aborted" , |
| 419 | /* FF */ "Unspecified error" |
| 420 | #define MAX_ORB_STATUS0 0xd |
| 421 | }; |
| 422 | |
| 423 | static const char *orb_status1_object[] = { |
| 424 | /* 0 */ "Operation request block (ORB)" , |
| 425 | /* 1 */ "Data buffer" , |
| 426 | /* 2 */ "Page table" , |
| 427 | /* 3 */ "Unable to specify" |
| 428 | }; |
| 429 | |
| 430 | static const char *orb_status1_serial_bus_error[] = { |
| 431 | /* 0 */ "Missing acknowledge" , |
| 432 | /* 1 */ "Reserved; not to be used" , |
| 433 | /* 2 */ "Time-out error" , |
| 434 | /* 3 */ "Reserved; not to be used" , |
| 435 | /* 4 */ "Busy retry limit exceeded(X)" , |
| 436 | /* 5 */ "Busy retry limit exceeded(A)" , |
| 437 | /* 6 */ "Busy retry limit exceeded(B)" , |
| 438 | /* 7 */ "Reserved for future standardization" , |
| 439 | /* 8 */ "Reserved for future standardization" , |
| 440 | /* 9 */ "Reserved for future standardization" , |
| 441 | /* A */ "Reserved for future standardization" , |
| 442 | /* B */ "Tardy retry limit exceeded" , |
| 443 | /* C */ "Conflict error" , |
| 444 | /* D */ "Data error" , |
| 445 | /* E */ "Type error" , |
| 446 | /* F */ "Address error" |
| 447 | }; |
| 448 | |
| 449 | |
| 450 | CFATTACH_DECL_NEW(sbp, sizeof(struct sbp_softc), |
| 451 | sbpmatch, sbpattach, sbpdetach, NULL); |
| 452 | |
| 453 | |
| 454 | int |
| 455 | sbpmatch(device_t parent, cfdata_t cf, void *aux) |
| 456 | { |
| 457 | struct fw_attach_args *fwa = aux; |
| 458 | |
| 459 | if (strcmp(fwa->name, "sbp" ) == 0) |
| 460 | return 1; |
| 461 | return 0; |
| 462 | } |
| 463 | |
| 464 | static void |
| 465 | sbpattach(device_t parent, device_t self, void *aux) |
| 466 | { |
| 467 | struct sbp_softc *sc = device_private(self); |
| 468 | struct fw_attach_args *fwa = (struct fw_attach_args *)aux; |
| 469 | struct firewire_comm *fc; |
| 470 | struct scsipi_adapter *sc_adapter = &sc->sc_adapter; |
| 471 | struct scsipi_channel *sc_channel = &sc->sc_channel; |
| 472 | struct sbp_target *target = &sc->sc_target; |
| 473 | int dv_unit; |
| 474 | |
| 475 | aprint_naive("\n" ); |
| 476 | aprint_normal(": SBP-2/SCSI over IEEE1394\n" ); |
| 477 | |
| 478 | sc->sc_fd.dev = self; |
| 479 | |
| 480 | if (cold) |
| 481 | sbp_cold++; |
| 482 | sc->sc_fd.fc = fc = fwa->fc; |
| 483 | mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_VM); |
| 484 | cv_init(&sc->sc_cv, "sbp" ); |
| 485 | |
| 486 | if (max_speed < 0) |
| 487 | max_speed = fc->speed; |
| 488 | |
| 489 | sc->sc_dmat = fc->dmat; |
| 490 | |
| 491 | sc->sc_target.fwdev = NULL; |
| 492 | sc->sc_target.luns = NULL; |
| 493 | |
| 494 | /* Initialize mutexes and lists before we can error out |
| 495 | * to prevent crashes on detach |
| 496 | */ |
| 497 | mutex_init(&sc->sc_fwb.fwb_mtx, MUTEX_DEFAULT, IPL_VM); |
| 498 | STAILQ_INIT(&sc->sc_fwb.xferlist); |
| 499 | |
| 500 | if (sbp_alloc_target(sc, fwa->fwdev) == NULL) |
| 501 | return; |
| 502 | |
| 503 | sc_adapter->adapt_dev = sc->sc_fd.dev; |
| 504 | sc_adapter->adapt_nchannels = 1; |
| 505 | sc_adapter->adapt_max_periph = 1; |
| 506 | sc_adapter->adapt_request = sbp_scsipi_request; |
| 507 | sc_adapter->adapt_minphys = sbp_minphys; |
| 508 | sc_adapter->adapt_openings = 8; |
| 509 | |
| 510 | sc_channel->chan_adapter = sc_adapter; |
| 511 | sc_channel->chan_bustype = &scsi_bustype; |
| 512 | sc_channel->chan_defquirks = PQUIRK_ONLYBIG; |
| 513 | sc_channel->chan_channel = 0; |
| 514 | sc_channel->chan_flags = SCSIPI_CHAN_CANGROW | SCSIPI_CHAN_NOSETTLE; |
| 515 | |
| 516 | sc_channel->chan_ntargets = 1; |
| 517 | sc_channel->chan_nluns = target->num_lun; /* We set nluns 0 now */ |
| 518 | sc_channel->chan_id = 1; |
| 519 | |
| 520 | sc->sc_bus = config_found(sc->sc_fd.dev, sc_channel, scsiprint); |
| 521 | if (sc->sc_bus == NULL) { |
| 522 | aprint_error_dev(self, "attach failed\n" ); |
| 523 | return; |
| 524 | } |
| 525 | |
| 526 | /* We reserve 16 bit space (4 bytes X 64 unit X 256 luns) */ |
| 527 | dv_unit = device_unit(sc->sc_fd.dev); |
| 528 | sc->sc_fwb.start = SBP_DEV2ADDR(dv_unit, 0); |
| 529 | sc->sc_fwb.end = SBP_DEV2ADDR(dv_unit, -1); |
| 530 | /* pre-allocate xfer */ |
| 531 | fw_xferlist_add(&sc->sc_fwb.xferlist, M_SBP, |
| 532 | /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB / 2, |
| 533 | fc, (void *)sc, sbp_recv); |
| 534 | fw_bindadd(fc, &sc->sc_fwb); |
| 535 | |
| 536 | sc->sc_fd.post_busreset = sbp_post_busreset; |
| 537 | sc->sc_fd.post_explore = sbp_post_explore; |
| 538 | |
| 539 | if (fc->status != FWBUSNOTREADY) { |
| 540 | sbp_post_busreset((void *)sc); |
| 541 | sbp_post_explore((void *)sc); |
| 542 | } |
| 543 | } |
| 544 | |
| 545 | static int |
| 546 | sbpdetach(device_t self, int flags) |
| 547 | { |
| 548 | struct sbp_softc *sc = device_private(self); |
| 549 | struct firewire_comm *fc = sc->sc_fd.fc; |
| 550 | |
| 551 | sbp_scsipi_detach_target(&sc->sc_target); |
| 552 | |
| 553 | if (sc->sc_target.fwdev && SBP_FWDEV_ALIVE(sc->sc_target.fwdev)) { |
| 554 | sbp_logout_all(sc); |
| 555 | |
| 556 | /* XXX wait for logout completion */ |
| 557 | mutex_enter(&sc->sc_mtx); |
| 558 | cv_timedwait_sig(&sc->sc_cv, &sc->sc_mtx, hz/2); |
| 559 | mutex_exit(&sc->sc_mtx); |
| 560 | } |
| 561 | |
| 562 | sbp_free_target(&sc->sc_target); |
| 563 | |
| 564 | fw_bindremove(fc, &sc->sc_fwb); |
| 565 | fw_xferlist_remove(&sc->sc_fwb.xferlist); |
| 566 | mutex_destroy(&sc->sc_fwb.fwb_mtx); |
| 567 | |
| 568 | mutex_destroy(&sc->sc_mtx); |
| 569 | cv_destroy(&sc->sc_cv); |
| 570 | |
| 571 | return 0; |
| 572 | } |
| 573 | |
| 574 | |
| 575 | static void |
| 576 | sbp_scsipi_request(struct scsipi_channel *channel, scsipi_adapter_req_t req, |
| 577 | void *arg) |
| 578 | { |
| 579 | struct sbp_softc *sc = device_private(channel->chan_adapter->adapt_dev); |
| 580 | struct scsipi_xfer *xs = arg; |
| 581 | int i; |
| 582 | |
| 583 | SBP_DEBUG(1) |
| 584 | printf("Called sbp_scsipi_request\n" ); |
| 585 | END_DEBUG |
| 586 | |
| 587 | switch (req) { |
| 588 | case ADAPTER_REQ_RUN_XFER: |
| 589 | SBP_DEBUG(1) |
| 590 | printf("Got req_run_xfer\n" ); |
| 591 | printf("xs control: 0x%08x, timeout: %d\n" , |
| 592 | xs->xs_control, xs->timeout); |
| 593 | printf("opcode: 0x%02x\n" , (int)xs->cmd->opcode); |
| 594 | for (i = 0; i < 15; i++) |
| 595 | printf("0x%02x " ,(int)xs->cmd->bytes[i]); |
| 596 | printf("\n" ); |
| 597 | END_DEBUG |
| 598 | if (xs->xs_control & XS_CTL_RESET) { |
| 599 | SBP_DEBUG(1) |
| 600 | printf("XS_CTL_RESET not support\n" ); |
| 601 | END_DEBUG |
| 602 | break; |
| 603 | } |
| 604 | #define SBPSCSI_SBP2_MAX_CDB 12 |
| 605 | if (xs->cmdlen > SBPSCSI_SBP2_MAX_CDB) { |
| 606 | SBP_DEBUG(0) |
| 607 | printf( |
| 608 | "sbp doesn't support cdb's larger than %d bytes\n" , |
| 609 | SBPSCSI_SBP2_MAX_CDB); |
| 610 | END_DEBUG |
| 611 | xs->error = XS_DRIVER_STUFFUP; |
| 612 | scsipi_done(xs); |
| 613 | return; |
| 614 | } |
| 615 | sbp_action1(sc, xs); |
| 616 | |
| 617 | break; |
| 618 | case ADAPTER_REQ_GROW_RESOURCES: |
| 619 | SBP_DEBUG(1) |
| 620 | printf("Got req_grow_resources\n" ); |
| 621 | END_DEBUG |
| 622 | break; |
| 623 | case ADAPTER_REQ_SET_XFER_MODE: |
| 624 | SBP_DEBUG(1) |
| 625 | printf("Got set xfer mode\n" ); |
| 626 | END_DEBUG |
| 627 | break; |
| 628 | default: |
| 629 | panic("Unknown request: %d\n" , (int)req); |
| 630 | } |
| 631 | } |
| 632 | |
| 633 | static void |
| 634 | sbp_minphys(struct buf *bp) |
| 635 | { |
| 636 | |
| 637 | minphys(bp); |
| 638 | } |
| 639 | |
| 640 | |
| 641 | /* |
| 642 | * Display device characteristics on the console |
| 643 | */ |
| 644 | static void |
| 645 | sbp_show_sdev_info(struct sbp_dev *sdev) |
| 646 | { |
| 647 | struct fw_device *fwdev = sdev->target->fwdev; |
| 648 | struct sbp_softc *sc = sdev->target->sbp; |
| 649 | |
| 650 | aprint_normal_dev(sc->sc_fd.dev, |
| 651 | "ordered:%d type:%d EUI:%08x%08x node:%d speed:%d maxrec:%d\n" , |
| 652 | (sdev->type & 0x40) >> 6, |
| 653 | (sdev->type & 0x1f), |
| 654 | fwdev->eui.hi, |
| 655 | fwdev->eui.lo, |
| 656 | fwdev->dst, |
| 657 | fwdev->speed, |
| 658 | fwdev->maxrec); |
| 659 | aprint_normal_dev(sc->sc_fd.dev, "%s '%s' '%s' '%s'\n" , |
| 660 | sdev->bustgtlun, sdev->vendor, sdev->product, sdev->revision); |
| 661 | } |
| 662 | |
| 663 | static void |
| 664 | sbp_alloc_lun(struct sbp_target *target) |
| 665 | { |
| 666 | struct crom_context cc; |
| 667 | struct csrreg *reg; |
| 668 | struct sbp_dev *sdev, **newluns; |
| 669 | struct sbp_softc *sc; |
| 670 | int maxlun, lun, i; |
| 671 | |
| 672 | sc = target->sbp; |
| 673 | crom_init_context(&cc, target->fwdev->csrrom); |
| 674 | /* XXX shoud parse appropriate unit directories only */ |
| 675 | maxlun = -1; |
| 676 | while (cc.depth >= 0) { |
| 677 | reg = crom_search_key(&cc, CROM_LUN); |
| 678 | if (reg == NULL) |
| 679 | break; |
| 680 | lun = reg->val & 0xffff; |
| 681 | SBP_DEBUG(0) |
| 682 | printf("target %d lun %d found\n" , target->target_id, lun); |
| 683 | END_DEBUG |
| 684 | if (maxlun < lun) |
| 685 | maxlun = lun; |
| 686 | crom_next(&cc); |
| 687 | } |
| 688 | if (maxlun < 0) |
| 689 | aprint_normal_dev(sc->sc_fd.dev, "%d: no LUN found\n" , |
| 690 | target->target_id); |
| 691 | |
| 692 | maxlun++; |
| 693 | if (maxlun >= SBP_NUM_LUNS) |
| 694 | maxlun = SBP_NUM_LUNS; |
| 695 | |
| 696 | /* Invalidiate stale devices */ |
| 697 | for (lun = 0; lun < target->num_lun; lun++) { |
| 698 | sdev = target->luns[lun]; |
| 699 | if (sdev == NULL) |
| 700 | continue; |
| 701 | sdev->flags &= ~VALID_LUN; |
| 702 | if (lun >= maxlun) { |
| 703 | /* lost device */ |
| 704 | sbp_scsipi_detach_sdev(sdev); |
| 705 | sbp_free_sdev(sdev); |
| 706 | target->luns[lun] = NULL; |
| 707 | } |
| 708 | } |
| 709 | |
| 710 | /* Reallocate */ |
| 711 | if (maxlun != target->num_lun) { |
| 712 | newluns = (struct sbp_dev **) realloc(target->luns, |
| 713 | sizeof(struct sbp_dev *) * maxlun, |
| 714 | M_SBP, M_NOWAIT | M_ZERO); |
| 715 | |
| 716 | if (newluns == NULL) { |
| 717 | aprint_error_dev(sc->sc_fd.dev, "realloc failed\n" ); |
| 718 | newluns = target->luns; |
| 719 | maxlun = target->num_lun; |
| 720 | } |
| 721 | |
| 722 | /* |
| 723 | * We must zero the extended region for the case |
| 724 | * realloc() doesn't allocate new buffer. |
| 725 | */ |
| 726 | if (maxlun > target->num_lun) { |
| 727 | const int sbp_dev_p_sz = sizeof(struct sbp_dev *); |
| 728 | |
| 729 | memset(&newluns[target->num_lun], 0, |
| 730 | sbp_dev_p_sz * (maxlun - target->num_lun)); |
| 731 | } |
| 732 | |
| 733 | target->luns = newluns; |
| 734 | target->num_lun = maxlun; |
| 735 | } |
| 736 | |
| 737 | crom_init_context(&cc, target->fwdev->csrrom); |
| 738 | while (cc.depth >= 0) { |
| 739 | int new = 0; |
| 740 | |
| 741 | reg = crom_search_key(&cc, CROM_LUN); |
| 742 | if (reg == NULL) |
| 743 | break; |
| 744 | lun = reg->val & 0xffff; |
| 745 | if (lun >= SBP_NUM_LUNS) { |
| 746 | aprint_error_dev(sc->sc_fd.dev, "too large lun %d\n" , |
| 747 | lun); |
| 748 | goto next; |
| 749 | } |
| 750 | |
| 751 | sdev = target->luns[lun]; |
| 752 | if (sdev == NULL) { |
| 753 | sdev = malloc(sizeof(struct sbp_dev), |
| 754 | M_SBP, M_NOWAIT | M_ZERO); |
| 755 | if (sdev == NULL) { |
| 756 | aprint_error_dev(sc->sc_fd.dev, |
| 757 | "malloc failed\n" ); |
| 758 | goto next; |
| 759 | } |
| 760 | target->luns[lun] = sdev; |
| 761 | sdev->lun_id = lun; |
| 762 | sdev->target = target; |
| 763 | STAILQ_INIT(&sdev->ocbs); |
| 764 | callout_init(&sdev->login_callout, CALLOUT_MPSAFE); |
| 765 | callout_setfunc(&sdev->login_callout, |
| 766 | sbp_login_callout, sdev); |
| 767 | sdev->status = SBP_DEV_RESET; |
| 768 | new = 1; |
| 769 | snprintf(sdev->bustgtlun, 32, "%s:%d:%d" , |
| 770 | device_xname(sc->sc_fd.dev), |
| 771 | sdev->target->target_id, |
| 772 | sdev->lun_id); |
| 773 | if (!sc->sc_lwp) |
| 774 | if (kthread_create( |
| 775 | PRI_NONE, KTHREAD_MPSAFE, NULL, |
| 776 | sbp_scsipi_scan_target, &sc->sc_target, |
| 777 | &sc->sc_lwp, |
| 778 | "sbp%d_attach" , device_unit(sc->sc_fd.dev))) |
| 779 | aprint_error_dev(sc->sc_fd.dev, |
| 780 | "unable to create thread" ); |
| 781 | } |
| 782 | sdev->flags |= VALID_LUN; |
| 783 | sdev->type = (reg->val & 0xff0000) >> 16; |
| 784 | |
| 785 | if (new == 0) |
| 786 | goto next; |
| 787 | |
| 788 | fwdma_alloc_setup(sc->sc_fd.dev, sc->sc_dmat, SBP_DMA_SIZE, |
| 789 | &sdev->dma, sizeof(uint32_t), BUS_DMA_NOWAIT); |
| 790 | if (sdev->dma.v_addr == NULL) { |
| 791 | free(sdev, M_SBP); |
| 792 | target->luns[lun] = NULL; |
| 793 | goto next; |
| 794 | } |
| 795 | sdev->ocb = (struct sbp_ocb *)sdev->dma.v_addr; |
| 796 | sdev->login = (struct sbp_login_res *)&sdev->ocb[SBP_QUEUE_LEN]; |
| 797 | memset((char *)sdev->ocb, 0, |
| 798 | sizeof(struct sbp_ocb) * SBP_QUEUE_LEN); |
| 799 | |
| 800 | STAILQ_INIT(&sdev->free_ocbs); |
| 801 | for (i = 0; i < SBP_QUEUE_LEN; i++) { |
| 802 | struct sbp_ocb *ocb = &sdev->ocb[i]; |
| 803 | |
| 804 | ocb->index = i; |
| 805 | ocb->bus_addr = |
| 806 | sdev->dma.bus_addr + sizeof(struct sbp_ocb) * i; |
| 807 | if (bus_dmamap_create(sc->sc_dmat, 0x100000, |
| 808 | SBP_IND_MAX, SBP_SEG_MAX, 0, 0, &ocb->dmamap)) { |
| 809 | aprint_error_dev(sc->sc_fd.dev, |
| 810 | "cannot create dmamap %d\n" , i); |
| 811 | /* XXX */ |
| 812 | goto next; |
| 813 | } |
| 814 | sbp_free_ocb(sdev, ocb); /* into free queue */ |
| 815 | } |
| 816 | next: |
| 817 | crom_next(&cc); |
| 818 | } |
| 819 | |
| 820 | for (lun = 0; lun < target->num_lun; lun++) { |
| 821 | sdev = target->luns[lun]; |
| 822 | if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) { |
| 823 | sbp_scsipi_detach_sdev(sdev); |
| 824 | sbp_free_sdev(sdev); |
| 825 | target->luns[lun] = NULL; |
| 826 | } |
| 827 | } |
| 828 | } |
| 829 | |
| 830 | static struct sbp_target * |
| 831 | sbp_alloc_target(struct sbp_softc *sc, struct fw_device *fwdev) |
| 832 | { |
| 833 | struct sbp_target *target; |
| 834 | struct crom_context cc; |
| 835 | struct csrreg *reg; |
| 836 | |
| 837 | SBP_DEBUG(1) |
| 838 | printf("sbp_alloc_target\n" ); |
| 839 | END_DEBUG |
| 840 | /* new target */ |
| 841 | target = &sc->sc_target; |
| 842 | target->sbp = sc; |
| 843 | target->fwdev = fwdev; |
| 844 | target->target_id = 0; |
| 845 | target->mgm_ocb_cur = NULL; |
| 846 | SBP_DEBUG(1) |
| 847 | printf("target: mgm_port: %x\n" , target->mgm_lo); |
| 848 | END_DEBUG |
| 849 | STAILQ_INIT(&target->xferlist); |
| 850 | target->n_xfer = 0; |
| 851 | STAILQ_INIT(&target->mgm_ocb_queue); |
| 852 | callout_init(&target->mgm_ocb_timeout, CALLOUT_MPSAFE); |
| 853 | |
| 854 | target->luns = NULL; |
| 855 | target->num_lun = 0; |
| 856 | |
| 857 | /* XXX we may want to reload mgm port after each bus reset */ |
| 858 | /* XXX there might be multiple management agents */ |
| 859 | crom_init_context(&cc, target->fwdev->csrrom); |
| 860 | reg = crom_search_key(&cc, CROM_MGM); |
| 861 | if (reg == NULL || reg->val == 0) { |
| 862 | aprint_error_dev(sc->sc_fd.dev, "NULL management address\n" ); |
| 863 | target->fwdev = NULL; |
| 864 | return NULL; |
| 865 | } |
| 866 | |
| 867 | target->mgm_hi = 0xffff; |
| 868 | target->mgm_lo = 0xf0000000 | (reg->val << 2); |
| 869 | |
| 870 | return target; |
| 871 | } |
| 872 | |
| 873 | static void |
| 874 | sbp_probe_lun(struct sbp_dev *sdev) |
| 875 | { |
| 876 | struct fw_device *fwdev; |
| 877 | struct crom_context c, *cc = &c; |
| 878 | struct csrreg *reg; |
| 879 | |
| 880 | memset(sdev->vendor, 0, sizeof(sdev->vendor)); |
| 881 | memset(sdev->product, 0, sizeof(sdev->product)); |
| 882 | |
| 883 | fwdev = sdev->target->fwdev; |
| 884 | crom_init_context(cc, fwdev->csrrom); |
| 885 | /* get vendor string */ |
| 886 | crom_search_key(cc, CSRKEY_VENDOR); |
| 887 | crom_next(cc); |
| 888 | crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor)); |
| 889 | /* skip to the unit directory for SBP-2 */ |
| 890 | while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) { |
| 891 | if (reg->val == CSRVAL_T10SBP2) |
| 892 | break; |
| 893 | crom_next(cc); |
| 894 | } |
| 895 | /* get firmware revision */ |
| 896 | reg = crom_search_key(cc, CSRKEY_FIRM_VER); |
| 897 | if (reg != NULL) |
| 898 | snprintf(sdev->revision, sizeof(sdev->revision), "%06x" , |
| 899 | reg->val); |
| 900 | /* get product string */ |
| 901 | crom_search_key(cc, CSRKEY_MODEL); |
| 902 | crom_next(cc); |
| 903 | crom_parse_text(cc, sdev->product, sizeof(sdev->product)); |
| 904 | } |
| 905 | |
| 906 | static void |
| 907 | sbp_login_callout(void *arg) |
| 908 | { |
| 909 | struct sbp_dev *sdev = (struct sbp_dev *)arg; |
| 910 | |
| 911 | sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL); |
| 912 | } |
| 913 | |
| 914 | static void |
| 915 | sbp_login(struct sbp_dev *sdev) |
| 916 | { |
| 917 | struct sbp_softc *sc = sdev->target->sbp; |
| 918 | struct timeval delta; |
| 919 | struct timeval t; |
| 920 | int ticks = 0; |
| 921 | |
| 922 | microtime(&delta); |
| 923 | timersub(&delta, &sc->sc_last_busreset, &delta); |
| 924 | t.tv_sec = login_delay / 1000; |
| 925 | t.tv_usec = (login_delay % 1000) * 1000; |
| 926 | timersub(&t, &delta, &t); |
| 927 | if (t.tv_sec >= 0 && t.tv_usec > 0) |
| 928 | ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000; |
| 929 | SBP_DEBUG(0) |
| 930 | printf("%s: sec = %lld usec = %ld ticks = %d\n" , __func__, |
| 931 | (long long)t.tv_sec, (long)t.tv_usec, ticks); |
| 932 | END_DEBUG |
| 933 | callout_schedule(&sdev->login_callout, ticks); |
| 934 | } |
| 935 | |
| 936 | static void |
| 937 | sbp_probe_target(void *arg) |
| 938 | { |
| 939 | struct sbp_target *target = (struct sbp_target *)arg; |
| 940 | struct sbp_dev *sdev; |
| 941 | int i; |
| 942 | |
| 943 | SBP_DEBUG(1) |
| 944 | printf("%s %d\n" , __func__, target->target_id); |
| 945 | END_DEBUG |
| 946 | |
| 947 | sbp_alloc_lun(target); |
| 948 | |
| 949 | /* XXX untimeout mgm_ocb and dequeue */ |
| 950 | for (i = 0; i < target->num_lun; i++) { |
| 951 | sdev = target->luns[i]; |
| 952 | if (sdev == NULL || sdev->status == SBP_DEV_DEAD) |
| 953 | continue; |
| 954 | |
| 955 | if (sdev->periph != NULL) { |
| 956 | scsipi_periph_freeze(sdev->periph, 1); |
| 957 | sdev->freeze++; |
| 958 | } |
| 959 | sbp_probe_lun(sdev); |
| 960 | sbp_show_sdev_info(sdev); |
| 961 | |
| 962 | sbp_abort_all_ocbs(sdev, XS_RESET); |
| 963 | switch (sdev->status) { |
| 964 | case SBP_DEV_RESET: |
| 965 | /* new or revived target */ |
| 966 | if (auto_login) |
| 967 | sbp_login(sdev); |
| 968 | break; |
| 969 | case SBP_DEV_TOATTACH: |
| 970 | case SBP_DEV_PROBE: |
| 971 | case SBP_DEV_ATTACHED: |
| 972 | case SBP_DEV_RETRY: |
| 973 | default: |
| 974 | sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL); |
| 975 | break; |
| 976 | } |
| 977 | } |
| 978 | } |
| 979 | |
| 980 | static void |
| 981 | sbp_post_busreset(void *arg) |
| 982 | { |
| 983 | struct sbp_softc *sc = (struct sbp_softc *)arg; |
| 984 | struct sbp_target *target = &sc->sc_target; |
| 985 | struct fw_device *fwdev = target->fwdev; |
| 986 | int alive; |
| 987 | |
| 988 | alive = SBP_FWDEV_ALIVE(fwdev); |
| 989 | SBP_DEBUG(0) |
| 990 | printf("sbp_post_busreset\n" ); |
| 991 | if (!alive) |
| 992 | printf("not alive\n" ); |
| 993 | END_DEBUG |
| 994 | microtime(&sc->sc_last_busreset); |
| 995 | |
| 996 | if (!alive) |
| 997 | return; |
| 998 | |
| 999 | scsipi_channel_freeze(&sc->sc_channel, 1); |
| 1000 | } |
| 1001 | |
| 1002 | static void |
| 1003 | sbp_post_explore(void *arg) |
| 1004 | { |
| 1005 | struct sbp_softc *sc = (struct sbp_softc *)arg; |
| 1006 | struct sbp_target *target = &sc->sc_target; |
| 1007 | struct fw_device *fwdev = target->fwdev; |
| 1008 | int alive; |
| 1009 | |
| 1010 | alive = SBP_FWDEV_ALIVE(fwdev); |
| 1011 | SBP_DEBUG(0) |
| 1012 | printf("sbp_post_explore (sbp_cold=%d)\n" , sbp_cold); |
| 1013 | if (!alive) |
| 1014 | printf("not alive\n" ); |
| 1015 | END_DEBUG |
| 1016 | if (!alive) |
| 1017 | return; |
| 1018 | |
| 1019 | if (!firewire_phydma_enable) |
| 1020 | return; |
| 1021 | |
| 1022 | if (sbp_cold > 0) |
| 1023 | sbp_cold--; |
| 1024 | |
| 1025 | SBP_DEBUG(0) |
| 1026 | printf("sbp_post_explore: EUI:%08x%08x " , fwdev->eui.hi, fwdev->eui.lo); |
| 1027 | END_DEBUG |
| 1028 | sbp_probe_target((void *)target); |
| 1029 | if (target->num_lun == 0) |
| 1030 | sbp_free_target(target); |
| 1031 | |
| 1032 | scsipi_channel_thaw(&sc->sc_channel, 1); |
| 1033 | } |
| 1034 | |
| 1035 | #if NEED_RESPONSE |
| 1036 | static void |
| 1037 | sbp_loginres_callback(struct fw_xfer *xfer) |
| 1038 | { |
| 1039 | struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; |
| 1040 | struct sbp_softc *sc = sdev->target->sbp; |
| 1041 | |
| 1042 | SBP_DEBUG(1) |
| 1043 | printf("sbp_loginres_callback\n" ); |
| 1044 | END_DEBUG |
| 1045 | /* recycle */ |
| 1046 | mutex_enter(&sc->sc_fwb.fwb_mtx); |
| 1047 | STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); |
| 1048 | mutex_exit(&sc->sc_fwb.fwb_mtx); |
| 1049 | return; |
| 1050 | } |
| 1051 | #endif |
| 1052 | |
| 1053 | static inline void |
| 1054 | sbp_xfer_free(struct fw_xfer *xfer) |
| 1055 | { |
| 1056 | struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; |
| 1057 | struct sbp_softc *sc = sdev->target->sbp; |
| 1058 | |
| 1059 | fw_xfer_unload(xfer); |
| 1060 | mutex_enter(&sc->sc_mtx); |
| 1061 | STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link); |
| 1062 | mutex_exit(&sc->sc_mtx); |
| 1063 | } |
| 1064 | |
| 1065 | static void |
| 1066 | sbp_reset_start_callback(struct fw_xfer *xfer) |
| 1067 | { |
| 1068 | struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc; |
| 1069 | struct sbp_target *target = sdev->target; |
| 1070 | int i; |
| 1071 | |
| 1072 | if (xfer->resp != 0) |
| 1073 | aprint_error("%s: sbp_reset_start failed: resp=%d\n" , |
| 1074 | sdev->bustgtlun, xfer->resp); |
| 1075 | |
| 1076 | for (i = 0; i < target->num_lun; i++) { |
| 1077 | tsdev = target->luns[i]; |
| 1078 | if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN) |
| 1079 | sbp_login(tsdev); |
| 1080 | } |
| 1081 | } |
| 1082 | |
| 1083 | static void |
| 1084 | sbp_reset_start(struct sbp_dev *sdev) |
| 1085 | { |
| 1086 | struct fw_xfer *xfer; |
| 1087 | struct fw_pkt *fp; |
| 1088 | |
| 1089 | SBP_DEBUG(0) |
| 1090 | printf("%s: sbp_reset_start: %s\n" , |
| 1091 | device_xname(sdev->target->sbp->sc_fd.dev), sdev->bustgtlun); |
| 1092 | END_DEBUG |
| 1093 | |
| 1094 | xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); |
| 1095 | if (xfer == NULL) |
| 1096 | return; |
| 1097 | xfer->hand = sbp_reset_start_callback; |
| 1098 | fp = &xfer->send.hdr; |
| 1099 | fp->mode.wreqq.dest_hi = 0xffff; |
| 1100 | fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START; |
| 1101 | fp->mode.wreqq.data = htonl(0xf); |
| 1102 | if (fw_asyreq(xfer->fc, -1, xfer) != 0) |
| 1103 | sbp_xfer_free(xfer); |
| 1104 | } |
| 1105 | |
| 1106 | static void |
| 1107 | sbp_mgm_callback(struct fw_xfer *xfer) |
| 1108 | { |
| 1109 | struct sbp_dev *sdev; |
| 1110 | |
| 1111 | sdev = (struct sbp_dev *)xfer->sc; |
| 1112 | |
| 1113 | SBP_DEBUG(1) |
| 1114 | printf("%s: sbp_mgm_callback: %s\n" , |
| 1115 | device_xname(sdev->target->sbp->sc_fd.dev), sdev->bustgtlun); |
| 1116 | END_DEBUG |
| 1117 | sbp_xfer_free(xfer); |
| 1118 | return; |
| 1119 | } |
| 1120 | |
| 1121 | static void |
| 1122 | sbp_scsipi_scan_target(void *arg) |
| 1123 | { |
| 1124 | struct sbp_target *target = (struct sbp_target *)arg; |
| 1125 | struct sbp_softc *sc = target->sbp; |
| 1126 | struct sbp_dev *sdev; |
| 1127 | struct scsipi_channel *chan = &sc->sc_channel; |
| 1128 | struct scsibus_softc *sc_bus = device_private(sc->sc_bus); |
| 1129 | int lun, yet; |
| 1130 | |
| 1131 | do { |
| 1132 | mutex_enter(&sc->sc_mtx); |
| 1133 | cv_wait_sig(&sc->sc_cv, &sc->sc_mtx); |
| 1134 | mutex_exit(&sc->sc_mtx); |
| 1135 | yet = 0; |
| 1136 | |
| 1137 | for (lun = 0; lun < target->num_lun; lun++) { |
| 1138 | sdev = target->luns[lun]; |
| 1139 | if (sdev == NULL) |
| 1140 | continue; |
| 1141 | if (sdev->status != SBP_DEV_PROBE) { |
| 1142 | yet++; |
| 1143 | continue; |
| 1144 | } |
| 1145 | |
| 1146 | if (sdev->periph == NULL) { |
| 1147 | if (chan->chan_nluns < target->num_lun) |
| 1148 | chan->chan_nluns = target->num_lun; |
| 1149 | |
| 1150 | scsi_probe_bus(sc_bus, target->target_id, |
| 1151 | sdev->lun_id); |
| 1152 | sdev->periph = scsipi_lookup_periph(chan, |
| 1153 | target->target_id, lun); |
| 1154 | } |
| 1155 | sdev->status = SBP_DEV_ATTACHED; |
| 1156 | } |
| 1157 | } while (yet > 0); |
| 1158 | |
| 1159 | sc->sc_lwp = NULL; |
| 1160 | kthread_exit(0); |
| 1161 | |
| 1162 | /* NOTREACHED */ |
| 1163 | } |
| 1164 | |
| 1165 | static inline void |
| 1166 | sbp_scan_dev(struct sbp_dev *sdev) |
| 1167 | { |
| 1168 | struct sbp_softc *sc = sdev->target->sbp; |
| 1169 | |
| 1170 | sdev->status = SBP_DEV_PROBE; |
| 1171 | mutex_enter(&sc->sc_mtx); |
| 1172 | cv_signal(&sdev->target->sbp->sc_cv); |
| 1173 | mutex_exit(&sc->sc_mtx); |
| 1174 | } |
| 1175 | |
| 1176 | |
| 1177 | static void |
| 1178 | sbp_do_attach(struct fw_xfer *xfer) |
| 1179 | { |
| 1180 | struct sbp_dev *sdev; |
| 1181 | struct sbp_target *target; |
| 1182 | struct sbp_softc *sc; |
| 1183 | |
| 1184 | sdev = (struct sbp_dev *)xfer->sc; |
| 1185 | target = sdev->target; |
| 1186 | sc = target->sbp; |
| 1187 | |
| 1188 | SBP_DEBUG(0) |
| 1189 | printf("%s:%s:%s\n" , device_xname(sc->sc_fd.dev), __func__, |
| 1190 | sdev->bustgtlun); |
| 1191 | END_DEBUG |
| 1192 | sbp_xfer_free(xfer); |
| 1193 | |
| 1194 | sbp_scan_dev(sdev); |
| 1195 | return; |
| 1196 | } |
| 1197 | |
| 1198 | static void |
| 1199 | sbp_agent_reset_callback(struct fw_xfer *xfer) |
| 1200 | { |
| 1201 | struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; |
| 1202 | struct sbp_softc *sc = sdev->target->sbp; |
| 1203 | |
| 1204 | SBP_DEBUG(1) |
| 1205 | printf("%s:%s:%s\n" , device_xname(sc->sc_fd.dev), __func__, |
| 1206 | sdev->bustgtlun); |
| 1207 | END_DEBUG |
| 1208 | if (xfer->resp != 0) |
| 1209 | aprint_error_dev(sc->sc_fd.dev, "%s:%s: resp=%d\n" , __func__, |
| 1210 | sdev->bustgtlun, xfer->resp); |
| 1211 | |
| 1212 | sbp_xfer_free(xfer); |
| 1213 | if (sdev->periph != NULL) { |
| 1214 | scsipi_periph_thaw(sdev->periph, sdev->freeze); |
| 1215 | scsipi_channel_thaw(&sc->sc_channel, 0); |
| 1216 | sdev->freeze = 0; |
| 1217 | } |
| 1218 | } |
| 1219 | |
| 1220 | static void |
| 1221 | sbp_agent_reset(struct sbp_dev *sdev) |
| 1222 | { |
| 1223 | struct fw_xfer *xfer; |
| 1224 | struct fw_pkt *fp; |
| 1225 | |
| 1226 | SBP_DEBUG(0) |
| 1227 | printf("%s:%s:%s\n" , device_xname(sdev->target->sbp->sc_fd.dev), |
| 1228 | __func__, sdev->bustgtlun); |
| 1229 | END_DEBUG |
| 1230 | xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); |
| 1231 | if (xfer == NULL) |
| 1232 | return; |
| 1233 | if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) |
| 1234 | xfer->hand = sbp_agent_reset_callback; |
| 1235 | else |
| 1236 | xfer->hand = sbp_do_attach; |
| 1237 | fp = &xfer->send.hdr; |
| 1238 | fp->mode.wreqq.data = htonl(0xf); |
| 1239 | if (fw_asyreq(xfer->fc, -1, xfer) != 0) |
| 1240 | sbp_xfer_free(xfer); |
| 1241 | sbp_abort_all_ocbs(sdev, XS_RESET); |
| 1242 | } |
| 1243 | |
| 1244 | static void |
| 1245 | sbp_busy_timeout_callback(struct fw_xfer *xfer) |
| 1246 | { |
| 1247 | struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; |
| 1248 | |
| 1249 | SBP_DEBUG(1) |
| 1250 | printf("%s:%s:%s\n" , device_xname(sdev->target->sbp->sc_fd.dev), |
| 1251 | __func__, sdev->bustgtlun); |
| 1252 | END_DEBUG |
| 1253 | sbp_xfer_free(xfer); |
| 1254 | sbp_agent_reset(sdev); |
| 1255 | } |
| 1256 | |
| 1257 | static void |
| 1258 | sbp_busy_timeout(struct sbp_dev *sdev) |
| 1259 | { |
| 1260 | struct fw_pkt *fp; |
| 1261 | struct fw_xfer *xfer; |
| 1262 | |
| 1263 | SBP_DEBUG(0) |
| 1264 | printf("%s:%s:%s\n" , device_xname(sdev->target->sbp->sc_fd.dev), |
| 1265 | __func__, sdev->bustgtlun); |
| 1266 | END_DEBUG |
| 1267 | xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); |
| 1268 | if (xfer == NULL) |
| 1269 | return; |
| 1270 | xfer->hand = sbp_busy_timeout_callback; |
| 1271 | fp = &xfer->send.hdr; |
| 1272 | fp->mode.wreqq.dest_hi = 0xffff; |
| 1273 | fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; |
| 1274 | fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf); |
| 1275 | if (fw_asyreq(xfer->fc, -1, xfer) != 0) |
| 1276 | sbp_xfer_free(xfer); |
| 1277 | } |
| 1278 | |
| 1279 | static void |
| 1280 | sbp_orb_pointer_callback(struct fw_xfer *xfer) |
| 1281 | { |
| 1282 | struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; |
| 1283 | struct sbp_softc *sc = sdev->target->sbp; |
| 1284 | |
| 1285 | SBP_DEBUG(1) |
| 1286 | printf("%s:%s:%s\n" , device_xname(sc->sc_fd.dev), __func__, |
| 1287 | sdev->bustgtlun); |
| 1288 | END_DEBUG |
| 1289 | if (xfer->resp != 0) |
| 1290 | aprint_error_dev(sc->sc_fd.dev, "%s:%s: xfer->resp = %d\n" , |
| 1291 | __func__, sdev->bustgtlun, xfer->resp); |
| 1292 | sbp_xfer_free(xfer); |
| 1293 | sdev->flags &= ~ORB_POINTER_ACTIVE; |
| 1294 | |
| 1295 | if ((sdev->flags & ORB_POINTER_NEED) != 0) { |
| 1296 | struct sbp_ocb *ocb; |
| 1297 | |
| 1298 | sdev->flags &= ~ORB_POINTER_NEED; |
| 1299 | ocb = STAILQ_FIRST(&sdev->ocbs); |
| 1300 | if (ocb != NULL) |
| 1301 | sbp_orb_pointer(sdev, ocb); |
| 1302 | } |
| 1303 | return; |
| 1304 | } |
| 1305 | |
| 1306 | static void |
| 1307 | sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) |
| 1308 | { |
| 1309 | struct sbp_softc *sc = sdev->target->sbp; |
| 1310 | struct fw_xfer *xfer; |
| 1311 | struct fw_pkt *fp; |
| 1312 | |
| 1313 | SBP_DEBUG(1) |
| 1314 | printf("%s:%s:%s: 0x%08x\n" , device_xname(sc->sc_fd.dev), __func__, |
| 1315 | sdev->bustgtlun, (uint32_t)ocb->bus_addr); |
| 1316 | END_DEBUG |
| 1317 | |
| 1318 | if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) { |
| 1319 | SBP_DEBUG(0) |
| 1320 | printf("%s: orb pointer active\n" , __func__); |
| 1321 | END_DEBUG |
| 1322 | sdev->flags |= ORB_POINTER_NEED; |
| 1323 | return; |
| 1324 | } |
| 1325 | |
| 1326 | sdev->flags |= ORB_POINTER_ACTIVE; |
| 1327 | xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08); |
| 1328 | if (xfer == NULL) |
| 1329 | return; |
| 1330 | xfer->hand = sbp_orb_pointer_callback; |
| 1331 | |
| 1332 | fp = &xfer->send.hdr; |
| 1333 | fp->mode.wreqb.len = 8; |
| 1334 | fp->mode.wreqb.extcode = 0; |
| 1335 | xfer->send.payload[0] = |
| 1336 | htonl(((sc->sc_fd.fc->nodeid | FWLOCALBUS) << 16)); |
| 1337 | xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr); |
| 1338 | |
| 1339 | if (fw_asyreq(xfer->fc, -1, xfer) != 0) { |
| 1340 | sbp_xfer_free(xfer); |
| 1341 | ocb->xs->error = XS_DRIVER_STUFFUP; |
| 1342 | scsipi_done(ocb->xs); |
| 1343 | } |
| 1344 | } |
| 1345 | |
| 1346 | static void |
| 1347 | sbp_doorbell_callback(struct fw_xfer *xfer) |
| 1348 | { |
| 1349 | struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; |
| 1350 | struct sbp_softc *sc = sdev->target->sbp; |
| 1351 | |
| 1352 | SBP_DEBUG(1) |
| 1353 | printf("%s:%s:%s\n" , device_xname(sc->sc_fd.dev), __func__, |
| 1354 | sdev->bustgtlun); |
| 1355 | END_DEBUG |
| 1356 | if (xfer->resp != 0) { |
| 1357 | aprint_error_dev(sc->sc_fd.dev, "%s: xfer->resp = %d\n" , |
| 1358 | __func__, xfer->resp); |
| 1359 | } |
| 1360 | sbp_xfer_free(xfer); |
| 1361 | sdev->flags &= ~ORB_DOORBELL_ACTIVE; |
| 1362 | if ((sdev->flags & ORB_DOORBELL_NEED) != 0) { |
| 1363 | sdev->flags &= ~ORB_DOORBELL_NEED; |
| 1364 | sbp_doorbell(sdev); |
| 1365 | } |
| 1366 | return; |
| 1367 | } |
| 1368 | |
| 1369 | static void |
| 1370 | sbp_doorbell(struct sbp_dev *sdev) |
| 1371 | { |
| 1372 | struct fw_xfer *xfer; |
| 1373 | struct fw_pkt *fp; |
| 1374 | |
| 1375 | SBP_DEBUG(1) |
| 1376 | printf("%s:%s:%s\n" , device_xname(sdev->target->sbp->sc_fd.dev), |
| 1377 | __func__, sdev->bustgtlun); |
| 1378 | END_DEBUG |
| 1379 | |
| 1380 | if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) { |
| 1381 | sdev->flags |= ORB_DOORBELL_NEED; |
| 1382 | return; |
| 1383 | } |
| 1384 | sdev->flags |= ORB_DOORBELL_ACTIVE; |
| 1385 | xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10); |
| 1386 | if (xfer == NULL) |
| 1387 | return; |
| 1388 | xfer->hand = sbp_doorbell_callback; |
| 1389 | fp = &xfer->send.hdr; |
| 1390 | fp->mode.wreqq.data = htonl(0xf); |
| 1391 | if (fw_asyreq(xfer->fc, -1, xfer) != 0) |
| 1392 | sbp_xfer_free(xfer); |
| 1393 | } |
| 1394 | |
| 1395 | static struct fw_xfer * |
| 1396 | sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) |
| 1397 | { |
| 1398 | struct sbp_softc *sc; |
| 1399 | struct fw_xfer *xfer; |
| 1400 | struct fw_pkt *fp; |
| 1401 | struct sbp_target *target; |
| 1402 | int new = 0; |
| 1403 | |
| 1404 | target = sdev->target; |
| 1405 | sc = target->sbp; |
| 1406 | mutex_enter(&sc->sc_mtx); |
| 1407 | xfer = STAILQ_FIRST(&target->xferlist); |
| 1408 | if (xfer == NULL) { |
| 1409 | if (target->n_xfer > 5 /* XXX */) { |
| 1410 | aprint_error_dev(sc->sc_fd.dev, |
| 1411 | "no more xfer for this target\n" ); |
| 1412 | mutex_exit(&sc->sc_mtx); |
| 1413 | return NULL; |
| 1414 | } |
| 1415 | xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); |
| 1416 | if (xfer == NULL) { |
| 1417 | aprint_error_dev(sc->sc_fd.dev, |
| 1418 | "fw_xfer_alloc_buf failed\n" ); |
| 1419 | mutex_exit(&sc->sc_mtx); |
| 1420 | return NULL; |
| 1421 | } |
| 1422 | target->n_xfer++; |
| 1423 | SBP_DEBUG(0) |
| 1424 | printf("sbp: alloc %d xfer\n" , target->n_xfer); |
| 1425 | END_DEBUG |
| 1426 | new = 1; |
| 1427 | } else |
| 1428 | STAILQ_REMOVE_HEAD(&target->xferlist, link); |
| 1429 | mutex_exit(&sc->sc_mtx); |
| 1430 | |
| 1431 | microtime(&xfer->tv); |
| 1432 | |
| 1433 | if (new) { |
| 1434 | xfer->recv.pay_len = 0; |
| 1435 | xfer->send.spd = min(target->fwdev->speed, max_speed); |
| 1436 | xfer->fc = target->sbp->sc_fd.fc; |
| 1437 | } |
| 1438 | |
| 1439 | if (tcode == FWTCODE_WREQB) |
| 1440 | xfer->send.pay_len = 8; |
| 1441 | else |
| 1442 | xfer->send.pay_len = 0; |
| 1443 | |
| 1444 | xfer->sc = (void *)sdev; |
| 1445 | fp = &xfer->send.hdr; |
| 1446 | fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; |
| 1447 | fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; |
| 1448 | fp->mode.wreqq.tlrt = 0; |
| 1449 | fp->mode.wreqq.tcode = tcode; |
| 1450 | fp->mode.wreqq.pri = 0; |
| 1451 | fp->mode.wreqq.dst = FWLOCALBUS | target->fwdev->dst; |
| 1452 | |
| 1453 | return xfer; |
| 1454 | } |
| 1455 | |
| 1456 | static void |
| 1457 | sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb) |
| 1458 | { |
| 1459 | struct fw_xfer *xfer; |
| 1460 | struct fw_pkt *fp; |
| 1461 | struct sbp_ocb *ocb; |
| 1462 | struct sbp_target *target; |
| 1463 | int nid, dv_unit; |
| 1464 | |
| 1465 | target = sdev->target; |
| 1466 | nid = target->sbp->sc_fd.fc->nodeid | FWLOCALBUS; |
| 1467 | dv_unit = device_unit(target->sbp->sc_fd.dev); |
| 1468 | |
| 1469 | mutex_enter(&target->sbp->sc_mtx); |
| 1470 | if (func == ORB_FUN_RUNQUEUE) { |
| 1471 | ocb = STAILQ_FIRST(&target->mgm_ocb_queue); |
| 1472 | if (target->mgm_ocb_cur != NULL || ocb == NULL) { |
| 1473 | mutex_exit(&target->sbp->sc_mtx); |
| 1474 | return; |
| 1475 | } |
| 1476 | STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); |
| 1477 | mutex_exit(&target->sbp->sc_mtx); |
| 1478 | goto start; |
| 1479 | } |
| 1480 | if ((ocb = sbp_get_ocb(sdev)) == NULL) { |
| 1481 | mutex_exit(&target->sbp->sc_mtx); |
| 1482 | /* XXX */ |
| 1483 | return; |
| 1484 | } |
| 1485 | mutex_exit(&target->sbp->sc_mtx); |
| 1486 | ocb->flags = OCB_ACT_MGM; |
| 1487 | ocb->sdev = sdev; |
| 1488 | |
| 1489 | memset(ocb->orb, 0, sizeof(ocb->orb)); |
| 1490 | ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); |
| 1491 | ocb->orb[7] = htonl(SBP_DEV2ADDR(dv_unit, sdev->lun_id)); |
| 1492 | |
| 1493 | SBP_DEBUG(0) |
| 1494 | printf("%s:%s:%s: %s\n" , device_xname(sdev->target->sbp->sc_fd.dev), |
| 1495 | __func__, sdev->bustgtlun, orb_fun_name[(func>>16)&0xf]); |
| 1496 | END_DEBUG |
| 1497 | switch (func) { |
| 1498 | case ORB_FUN_LGI: |
| 1499 | { |
| 1500 | const off_t sbp_login_off = |
| 1501 | sizeof(struct sbp_ocb) * SBP_QUEUE_LEN; |
| 1502 | |
| 1503 | ocb->orb[0] = ocb->orb[1] = 0; /* password */ |
| 1504 | ocb->orb[2] = htonl(nid << 16); |
| 1505 | ocb->orb[3] = htonl(sdev->dma.bus_addr + sbp_login_off); |
| 1506 | ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); |
| 1507 | if (ex_login) |
| 1508 | ocb->orb[4] |= htonl(ORB_EXV); |
| 1509 | ocb->orb[5] = htonl(SBP_LOGIN_SIZE); |
| 1510 | bus_dmamap_sync(sdev->dma.dma_tag, sdev->dma.dma_map, |
| 1511 | sbp_login_off, SBP_LOGIN_SIZE, BUS_DMASYNC_PREREAD); |
| 1512 | break; |
| 1513 | } |
| 1514 | |
| 1515 | case ORB_FUN_ATA: |
| 1516 | ocb->orb[0] = htonl((0 << 16) | 0); |
| 1517 | ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); |
| 1518 | /* fall through */ |
| 1519 | case ORB_FUN_RCN: |
| 1520 | case ORB_FUN_LGO: |
| 1521 | case ORB_FUN_LUR: |
| 1522 | case ORB_FUN_RST: |
| 1523 | case ORB_FUN_ATS: |
| 1524 | ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); |
| 1525 | break; |
| 1526 | } |
| 1527 | |
| 1528 | if (target->mgm_ocb_cur != NULL) { |
| 1529 | /* there is a standing ORB */ |
| 1530 | mutex_enter(&target->sbp->sc_mtx); |
| 1531 | STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); |
| 1532 | mutex_exit(&target->sbp->sc_mtx); |
| 1533 | return; |
| 1534 | } |
| 1535 | start: |
| 1536 | target->mgm_ocb_cur = ocb; |
| 1537 | |
| 1538 | callout_reset(&target->mgm_ocb_timeout, 5 * hz, sbp_mgm_timeout, ocb); |
| 1539 | xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); |
| 1540 | if (xfer == NULL) |
| 1541 | return; |
| 1542 | xfer->hand = sbp_mgm_callback; |
| 1543 | |
| 1544 | fp = &xfer->send.hdr; |
| 1545 | fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; |
| 1546 | fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; |
| 1547 | fp->mode.wreqb.len = 8; |
| 1548 | fp->mode.wreqb.extcode = 0; |
| 1549 | xfer->send.payload[0] = htonl(nid << 16); |
| 1550 | xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); |
| 1551 | |
| 1552 | /* cache writeback & invalidate(required ORB_FUN_LGI func) */ |
| 1553 | /* when abort_ocb, should sync POST ope ? */ |
| 1554 | SBP_ORB_DMA_SYNC(sdev->dma, ocb->index, BUS_DMASYNC_PREWRITE); |
| 1555 | if (fw_asyreq(xfer->fc, -1, xfer) != 0) |
| 1556 | sbp_xfer_free(xfer); |
| 1557 | } |
| 1558 | |
| 1559 | static void |
| 1560 | sbp_print_scsi_cmd(struct sbp_ocb *ocb) |
| 1561 | { |
| 1562 | struct scsipi_xfer *xs = ocb->xs; |
| 1563 | |
| 1564 | printf("%s:%d:%d:" |
| 1565 | " cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x," |
| 1566 | " flags: 0x%02x, %db cmd/%db data\n" , |
| 1567 | device_xname(ocb->sdev->target->sbp->sc_fd.dev), |
| 1568 | xs->xs_periph->periph_target, |
| 1569 | xs->xs_periph->periph_lun, |
| 1570 | xs->cmd->opcode, |
| 1571 | xs->cmd->bytes[0], xs->cmd->bytes[1], |
| 1572 | xs->cmd->bytes[2], xs->cmd->bytes[3], |
| 1573 | xs->cmd->bytes[4], xs->cmd->bytes[5], |
| 1574 | xs->cmd->bytes[6], xs->cmd->bytes[7], |
| 1575 | xs->cmd->bytes[8], |
| 1576 | xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT), |
| 1577 | xs->cmdlen, xs->datalen); |
| 1578 | } |
| 1579 | |
| 1580 | static void |
| 1581 | sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) |
| 1582 | { |
| 1583 | struct sbp_cmd_status *sbp_cmd_status; |
| 1584 | struct scsi_sense_data *sense = &ocb->xs->sense.scsi_sense; |
| 1585 | |
| 1586 | sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; |
| 1587 | |
| 1588 | SBP_DEBUG(0) |
| 1589 | sbp_print_scsi_cmd(ocb); |
| 1590 | /* XXX need decode status */ |
| 1591 | printf("%s:" |
| 1592 | " SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n" , |
| 1593 | ocb->sdev->bustgtlun, |
| 1594 | sbp_cmd_status->status, |
| 1595 | sbp_cmd_status->sfmt, |
| 1596 | sbp_cmd_status->valid, |
| 1597 | sbp_cmd_status->s_key, |
| 1598 | sbp_cmd_status->s_code, |
| 1599 | sbp_cmd_status->s_qlfr, |
| 1600 | sbp_status->len); |
| 1601 | END_DEBUG |
| 1602 | |
| 1603 | switch (sbp_cmd_status->status) { |
| 1604 | case SCSI_CHECK: |
| 1605 | case SCSI_BUSY: |
| 1606 | case SCSI_TERMINATED: |
| 1607 | if (sbp_cmd_status->sfmt == SBP_SFMT_CURR) |
| 1608 | sense->response_code = SSD_RCODE_CURRENT; |
| 1609 | else |
| 1610 | sense->response_code = SSD_RCODE_DEFERRED; |
| 1611 | if (sbp_cmd_status->valid) |
| 1612 | sense->response_code |= SSD_RCODE_VALID; |
| 1613 | sense->flags = sbp_cmd_status->s_key; |
| 1614 | if (sbp_cmd_status->mark) |
| 1615 | sense->flags |= SSD_FILEMARK; |
| 1616 | if (sbp_cmd_status->eom) |
| 1617 | sense->flags |= SSD_EOM; |
| 1618 | if (sbp_cmd_status->ill_len) |
| 1619 | sense->flags |= SSD_ILI; |
| 1620 | |
| 1621 | memcpy(sense->info, &sbp_cmd_status->info, 4); |
| 1622 | |
| 1623 | if (sbp_status->len <= 1) |
| 1624 | /* XXX not scsi status. shouldn't be happened */ |
| 1625 | sense->extra_len = 0; |
| 1626 | else if (sbp_status->len <= 4) |
| 1627 | /* add_sense_code(_qual), info, cmd_spec_info */ |
| 1628 | sense->extra_len = 6; |
| 1629 | else |
| 1630 | /* fru, sense_key_spec */ |
| 1631 | sense->extra_len = 10; |
| 1632 | |
| 1633 | memcpy(sense->csi, &sbp_cmd_status->cdb, 4); |
| 1634 | |
| 1635 | sense->asc = sbp_cmd_status->s_code; |
| 1636 | sense->ascq = sbp_cmd_status->s_qlfr; |
| 1637 | sense->fru = sbp_cmd_status->fru; |
| 1638 | |
| 1639 | memcpy(sense->sks.sks_bytes, sbp_cmd_status->s_keydep, 3); |
| 1640 | ocb->xs->error = XS_SENSE; |
| 1641 | ocb->xs->xs_status = sbp_cmd_status->status; |
| 1642 | /* |
| 1643 | { |
| 1644 | uint8_t j, *tmp; |
| 1645 | tmp = sense; |
| 1646 | for (j = 0; j < 32; j += 8) |
| 1647 | aprint_normal( |
| 1648 | "sense %02x%02x %02x%02x %02x%02x %02x%02x\n", |
| 1649 | tmp[j], tmp[j+1], tmp[j+2], tmp[j+3], |
| 1650 | tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]); |
| 1651 | |
| 1652 | } |
| 1653 | */ |
| 1654 | break; |
| 1655 | default: |
| 1656 | aprint_error_dev(ocb->sdev->target->sbp->sc_fd.dev, |
| 1657 | "%s:%s: unknown scsi status 0x%x\n" , |
| 1658 | __func__, ocb->sdev->bustgtlun, sbp_cmd_status->status); |
| 1659 | } |
| 1660 | } |
| 1661 | |
| 1662 | static void |
| 1663 | sbp_fix_inq_data(struct sbp_ocb *ocb) |
| 1664 | { |
| 1665 | struct scsipi_xfer *xs = ocb->xs; |
| 1666 | struct sbp_dev *sdev; |
| 1667 | struct scsipi_inquiry_data *inq = |
| 1668 | (struct scsipi_inquiry_data *)xs->data; |
| 1669 | |
| 1670 | sdev = ocb->sdev; |
| 1671 | |
| 1672 | #if 0 |
| 1673 | /* |
| 1674 | * NetBSD is assuming always 0 for EVPD-bit and 'Page Code'. |
| 1675 | */ |
| 1676 | #define SI_EVPD 0x01 |
| 1677 | if (xs->cmd->bytes[0] & SI_EVPD) |
| 1678 | return; |
| 1679 | #endif |
| 1680 | SBP_DEBUG(1) |
| 1681 | printf("%s:%s:%s\n" , device_xname(sdev->target->sbp->sc_fd.dev), |
| 1682 | __func__, sdev->bustgtlun); |
| 1683 | END_DEBUG |
| 1684 | switch (inq->device & SID_TYPE) { |
| 1685 | case T_DIRECT: |
| 1686 | #if 0 |
| 1687 | /* |
| 1688 | * XXX Convert Direct Access device to RBC. |
| 1689 | * I've never seen FireWire DA devices which support READ_6. |
| 1690 | */ |
| 1691 | if ((inq->device & SID_TYPE) == T_DIRECT) |
| 1692 | inq->device |= T_SIMPLE_DIRECT; /* T_DIRECT == 0 */ |
| 1693 | #endif |
| 1694 | /* FALLTHROUGH */ |
| 1695 | |
| 1696 | case T_SIMPLE_DIRECT: |
| 1697 | /* |
| 1698 | * Override vendor/product/revision information. |
| 1699 | * Some devices sometimes return strange strings. |
| 1700 | */ |
| 1701 | #if 1 |
| 1702 | memcpy(inq->vendor, sdev->vendor, sizeof(inq->vendor)); |
| 1703 | memcpy(inq->product, sdev->product, sizeof(inq->product)); |
| 1704 | memcpy(inq->revision + 2, sdev->revision, |
| 1705 | sizeof(inq->revision)); |
| 1706 | #endif |
| 1707 | break; |
| 1708 | } |
| 1709 | /* |
| 1710 | * Force to enable/disable tagged queuing. |
| 1711 | * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page. |
| 1712 | */ |
| 1713 | if (sbp_tags > 0) |
| 1714 | inq->flags3 |= SID_CmdQue; |
| 1715 | else if (sbp_tags < 0) |
| 1716 | inq->flags3 &= ~SID_CmdQue; |
| 1717 | |
| 1718 | } |
| 1719 | |
| 1720 | static void |
| 1721 | sbp_recv(struct fw_xfer *xfer) |
| 1722 | { |
| 1723 | struct fw_pkt *rfp; |
| 1724 | #if NEED_RESPONSE |
| 1725 | struct fw_pkt *sfp; |
| 1726 | #endif |
| 1727 | struct sbp_softc *sc; |
| 1728 | struct sbp_dev *sdev; |
| 1729 | struct sbp_ocb *ocb; |
| 1730 | struct sbp_login_res *login_res = NULL; |
| 1731 | struct sbp_status *sbp_status; |
| 1732 | struct sbp_target *target; |
| 1733 | int orb_fun, status_valid0, status_valid, l, reset_agent = 0; |
| 1734 | uint32_t addr; |
| 1735 | /* |
| 1736 | uint32_t *ld; |
| 1737 | ld = xfer->recv.buf; |
| 1738 | printf("sbp %x %d %d %08x %08x %08x %08x\n", |
| 1739 | xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); |
| 1740 | printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); |
| 1741 | printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); |
| 1742 | */ |
| 1743 | |
| 1744 | sc = (struct sbp_softc *)xfer->sc; |
| 1745 | if (xfer->resp != 0) { |
| 1746 | aprint_error_dev(sc->sc_fd.dev, |
| 1747 | "sbp_recv: xfer->resp = %d\n" , xfer->resp); |
| 1748 | goto done0; |
| 1749 | } |
| 1750 | if (xfer->recv.payload == NULL) { |
| 1751 | aprint_error_dev(sc->sc_fd.dev, |
| 1752 | "sbp_recv: xfer->recv.payload == NULL\n" ); |
| 1753 | goto done0; |
| 1754 | } |
| 1755 | rfp = &xfer->recv.hdr; |
| 1756 | if (rfp->mode.wreqb.tcode != FWTCODE_WREQB) { |
| 1757 | aprint_error_dev(sc->sc_fd.dev, |
| 1758 | "sbp_recv: tcode = %d\n" , rfp->mode.wreqb.tcode); |
| 1759 | goto done0; |
| 1760 | } |
| 1761 | sbp_status = (struct sbp_status *)xfer->recv.payload; |
| 1762 | addr = rfp->mode.wreqb.dest_lo; |
| 1763 | SBP_DEBUG(2) |
| 1764 | printf("received address 0x%x\n" , addr); |
| 1765 | END_DEBUG |
| 1766 | target = &sc->sc_target; |
| 1767 | l = SBP_ADDR2LUN(addr); |
| 1768 | if (l >= target->num_lun || target->luns[l] == NULL) { |
| 1769 | aprint_error_dev(sc->sc_fd.dev, |
| 1770 | "sbp_recv1: invalid lun %d (target=%d)\n" , |
| 1771 | l, target->target_id); |
| 1772 | goto done0; |
| 1773 | } |
| 1774 | sdev = target->luns[l]; |
| 1775 | |
| 1776 | ocb = NULL; |
| 1777 | switch (sbp_status->src) { |
| 1778 | case SRC_NEXT_EXISTS: |
| 1779 | case SRC_NO_NEXT: |
| 1780 | /* check mgm_ocb_cur first */ |
| 1781 | ocb = target->mgm_ocb_cur; |
| 1782 | if (ocb != NULL) |
| 1783 | if (OCB_MATCH(ocb, sbp_status)) { |
| 1784 | callout_stop(&target->mgm_ocb_timeout); |
| 1785 | target->mgm_ocb_cur = NULL; |
| 1786 | break; |
| 1787 | } |
| 1788 | ocb = sbp_dequeue_ocb(sdev, sbp_status); |
| 1789 | if (ocb == NULL) |
| 1790 | aprint_error_dev(sc->sc_fd.dev, |
| 1791 | "%s:%s: No ocb(%x) on the queue\n" , __func__, |
| 1792 | sdev->bustgtlun, ntohl(sbp_status->orb_lo)); |
| 1793 | break; |
| 1794 | case SRC_UNSOL: |
| 1795 | /* unsolicit */ |
| 1796 | aprint_error_dev(sc->sc_fd.dev, |
| 1797 | "%s:%s: unsolicit status received\n" , |
| 1798 | __func__, sdev->bustgtlun); |
| 1799 | break; |
| 1800 | default: |
| 1801 | aprint_error_dev(sc->sc_fd.dev, |
| 1802 | "%s:%s: unknown sbp_status->src\n" , |
| 1803 | __func__, sdev->bustgtlun); |
| 1804 | } |
| 1805 | |
| 1806 | status_valid0 = (sbp_status->src < 2 |
| 1807 | && sbp_status->resp == SBP_REQ_CMP |
| 1808 | && sbp_status->dead == 0); |
| 1809 | status_valid = (status_valid0 && sbp_status->status == 0); |
| 1810 | |
| 1811 | if (!status_valid0 || debug > 2) { |
| 1812 | int status; |
| 1813 | SBP_DEBUG(0) |
| 1814 | printf("%s:%s:%s: ORB status src:%x resp:%x dead:%x" |
| 1815 | " len:%x stat:%x orb:%x%08x\n" , |
| 1816 | device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun, |
| 1817 | sbp_status->src, sbp_status->resp, sbp_status->dead, |
| 1818 | sbp_status->len, sbp_status->status, |
| 1819 | ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); |
| 1820 | END_DEBUG |
| 1821 | printf("%s:%s\n" , device_xname(sc->sc_fd.dev), sdev->bustgtlun); |
| 1822 | status = sbp_status->status; |
| 1823 | switch (sbp_status->resp) { |
| 1824 | case SBP_REQ_CMP: |
| 1825 | if (status > MAX_ORB_STATUS0) |
| 1826 | printf("%s\n" , orb_status0[MAX_ORB_STATUS0]); |
| 1827 | else |
| 1828 | printf("%s\n" , orb_status0[status]); |
| 1829 | break; |
| 1830 | case SBP_TRANS_FAIL: |
| 1831 | printf("Obj: %s, Error: %s\n" , |
| 1832 | orb_status1_object[(status>>6) & 3], |
| 1833 | orb_status1_serial_bus_error[status & 0xf]); |
| 1834 | break; |
| 1835 | case SBP_ILLE_REQ: |
| 1836 | printf("Illegal request\n" ); |
| 1837 | break; |
| 1838 | case SBP_VEND_DEP: |
| 1839 | printf("Vendor dependent\n" ); |
| 1840 | break; |
| 1841 | default: |
| 1842 | printf("unknown respose code %d\n" , sbp_status->resp); |
| 1843 | } |
| 1844 | } |
| 1845 | |
| 1846 | /* we have to reset the fetch agent if it's dead */ |
| 1847 | if (sbp_status->dead) { |
| 1848 | if (sdev->periph != NULL) { |
| 1849 | scsipi_periph_freeze(sdev->periph, 1); |
| 1850 | sdev->freeze++; |
| 1851 | } |
| 1852 | reset_agent = 1; |
| 1853 | } |
| 1854 | |
| 1855 | if (ocb == NULL) |
| 1856 | goto done; |
| 1857 | |
| 1858 | switch (ntohl(ocb->orb[4]) & ORB_FMT_MSK) { |
| 1859 | case ORB_FMT_NOP: |
| 1860 | break; |
| 1861 | case ORB_FMT_VED: |
| 1862 | break; |
| 1863 | case ORB_FMT_STD: |
| 1864 | switch (ocb->flags) { |
| 1865 | case OCB_ACT_MGM: |
| 1866 | orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; |
| 1867 | reset_agent = 0; |
| 1868 | switch (orb_fun) { |
| 1869 | case ORB_FUN_LGI: |
| 1870 | { |
| 1871 | const struct fwdma_alloc *dma = &sdev->dma; |
| 1872 | const off_t sbp_login_off = |
| 1873 | sizeof(struct sbp_ocb) * SBP_QUEUE_LEN; |
| 1874 | |
| 1875 | bus_dmamap_sync(dma->dma_tag, dma->dma_map, |
| 1876 | sbp_login_off, SBP_LOGIN_SIZE, |
| 1877 | BUS_DMASYNC_POSTREAD); |
| 1878 | login_res = sdev->login; |
| 1879 | login_res->len = ntohs(login_res->len); |
| 1880 | login_res->id = ntohs(login_res->id); |
| 1881 | login_res->cmd_hi = ntohs(login_res->cmd_hi); |
| 1882 | login_res->cmd_lo = ntohl(login_res->cmd_lo); |
| 1883 | if (status_valid) { |
| 1884 | SBP_DEBUG(0) |
| 1885 | printf("%s:%s:%s: login:" |
| 1886 | " len %d, ID %d, cmd %08x%08x," |
| 1887 | " recon_hold %d\n" , |
| 1888 | device_xname(sc->sc_fd.dev), |
| 1889 | __func__, sdev->bustgtlun, |
| 1890 | login_res->len, login_res->id, |
| 1891 | login_res->cmd_hi, |
| 1892 | login_res->cmd_lo, |
| 1893 | ntohs(login_res->recon_hold)); |
| 1894 | END_DEBUG |
| 1895 | sbp_busy_timeout(sdev); |
| 1896 | } else { |
| 1897 | /* forgot logout? */ |
| 1898 | aprint_error_dev(sc->sc_fd.dev, |
| 1899 | "%s:%s: login failed\n" , |
| 1900 | __func__, sdev->bustgtlun); |
| 1901 | sdev->status = SBP_DEV_RESET; |
| 1902 | } |
| 1903 | break; |
| 1904 | } |
| 1905 | case ORB_FUN_RCN: |
| 1906 | login_res = sdev->login; |
| 1907 | if (status_valid) { |
| 1908 | SBP_DEBUG(0) |
| 1909 | printf("%s:%s:%s: reconnect:" |
| 1910 | " len %d, ID %d, cmd %08x%08x\n" , |
| 1911 | device_xname(sc->sc_fd.dev), |
| 1912 | __func__, sdev->bustgtlun, |
| 1913 | login_res->len, login_res->id, |
| 1914 | login_res->cmd_hi, |
| 1915 | login_res->cmd_lo); |
| 1916 | END_DEBUG |
| 1917 | sbp_agent_reset(sdev); |
| 1918 | } else { |
| 1919 | /* reconnection hold time exceed? */ |
| 1920 | SBP_DEBUG(0) |
| 1921 | aprint_error_dev(sc->sc_fd.dev, |
| 1922 | "%s:%s: reconnect failed\n" , |
| 1923 | __func__, sdev->bustgtlun); |
| 1924 | END_DEBUG |
| 1925 | sbp_login(sdev); |
| 1926 | } |
| 1927 | break; |
| 1928 | case ORB_FUN_LGO: |
| 1929 | sdev->status = SBP_DEV_RESET; |
| 1930 | break; |
| 1931 | case ORB_FUN_RST: |
| 1932 | sbp_busy_timeout(sdev); |
| 1933 | break; |
| 1934 | case ORB_FUN_LUR: |
| 1935 | case ORB_FUN_ATA: |
| 1936 | case ORB_FUN_ATS: |
| 1937 | sbp_agent_reset(sdev); |
| 1938 | break; |
| 1939 | default: |
| 1940 | aprint_error_dev(sc->sc_fd.dev, |
| 1941 | "%s:%s: unknown function %d\n" , |
| 1942 | __func__, sdev->bustgtlun, orb_fun); |
| 1943 | break; |
| 1944 | } |
| 1945 | sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); |
| 1946 | break; |
| 1947 | case OCB_ACT_CMD: |
| 1948 | sdev->timeout = 0; |
| 1949 | if (ocb->xs != NULL) { |
| 1950 | struct scsipi_xfer *xs = ocb->xs; |
| 1951 | |
| 1952 | if (sbp_status->len > 1) |
| 1953 | sbp_scsi_status(sbp_status, ocb); |
| 1954 | else |
| 1955 | if (sbp_status->resp != SBP_REQ_CMP) |
| 1956 | xs->error = XS_DRIVER_STUFFUP; |
| 1957 | else { |
| 1958 | xs->error = XS_NOERROR; |
| 1959 | xs->resid = 0; |
| 1960 | } |
| 1961 | /* fix up inq data */ |
| 1962 | if (xs->cmd->opcode == INQUIRY) |
| 1963 | sbp_fix_inq_data(ocb); |
| 1964 | scsipi_done(xs); |
| 1965 | } |
| 1966 | break; |
| 1967 | default: |
| 1968 | break; |
| 1969 | } |
| 1970 | } |
| 1971 | |
| 1972 | if (!use_doorbell) |
| 1973 | sbp_free_ocb(sdev, ocb); |
| 1974 | done: |
| 1975 | if (reset_agent) |
| 1976 | sbp_agent_reset(sdev); |
| 1977 | |
| 1978 | done0: |
| 1979 | xfer->recv.pay_len = SBP_RECV_LEN; |
| 1980 | /* The received packet is usually small enough to be stored within |
| 1981 | * the buffer. In that case, the controller return ack_complete and |
| 1982 | * no respose is necessary. |
| 1983 | * |
| 1984 | * XXX fwohci.c and firewire.c should inform event_code such as |
| 1985 | * ack_complete or ack_pending to upper driver. |
| 1986 | */ |
| 1987 | #if NEED_RESPONSE |
| 1988 | xfer->send.off = 0; |
| 1989 | sfp = (struct fw_pkt *)xfer->send.buf; |
| 1990 | sfp->mode.wres.dst = rfp->mode.wreqb.src; |
| 1991 | xfer->dst = sfp->mode.wres.dst; |
| 1992 | xfer->spd = min(sdev->target->fwdev->speed, max_speed); |
| 1993 | xfer->hand = sbp_loginres_callback; |
| 1994 | |
| 1995 | sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; |
| 1996 | sfp->mode.wres.tcode = FWTCODE_WRES; |
| 1997 | sfp->mode.wres.rtcode = 0; |
| 1998 | sfp->mode.wres.pri = 0; |
| 1999 | |
| 2000 | if (fw_asyreq(xfer->fc, -1, xfer) != 0) { |
| 2001 | aprint_error_dev(sc->sc_fd.dev, "mgm_orb failed\n" ); |
| 2002 | mutex_enter(&sc->sc_fwb.fwb_mtx); |
| 2003 | STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); |
| 2004 | mutex_exit(&sc->sc_fwb.fwb_mtx); |
| 2005 | } |
| 2006 | #else |
| 2007 | /* recycle */ |
| 2008 | mutex_enter(&sc->sc_fwb.fwb_mtx); |
| 2009 | STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); |
| 2010 | mutex_exit(&sc->sc_fwb.fwb_mtx); |
| 2011 | #endif |
| 2012 | |
| 2013 | return; |
| 2014 | |
| 2015 | } |
| 2016 | |
| 2017 | static int |
| 2018 | sbp_logout_all(struct sbp_softc *sbp) |
| 2019 | { |
| 2020 | struct sbp_target *target; |
| 2021 | struct sbp_dev *sdev; |
| 2022 | int i; |
| 2023 | |
| 2024 | SBP_DEBUG(0) |
| 2025 | printf("sbp_logout_all\n" ); |
| 2026 | END_DEBUG |
| 2027 | target = &sbp->sc_target; |
| 2028 | if (target->luns != NULL) { |
| 2029 | for (i = 0; i < target->num_lun; i++) { |
| 2030 | sdev = target->luns[i]; |
| 2031 | if (sdev == NULL) |
| 2032 | continue; |
| 2033 | callout_stop(&sdev->login_callout); |
| 2034 | if (sdev->status >= SBP_DEV_TOATTACH && |
| 2035 | sdev->status <= SBP_DEV_ATTACHED) |
| 2036 | sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL); |
| 2037 | } |
| 2038 | } |
| 2039 | |
| 2040 | return 0; |
| 2041 | } |
| 2042 | |
| 2043 | static void |
| 2044 | sbp_free_sdev(struct sbp_dev *sdev) |
| 2045 | { |
| 2046 | struct sbp_softc *sc = sdev->target->sbp; |
| 2047 | int i; |
| 2048 | |
| 2049 | if (sdev == NULL) |
| 2050 | return; |
| 2051 | for (i = 0; i < SBP_QUEUE_LEN; i++) |
| 2052 | bus_dmamap_destroy(sc->sc_dmat, sdev->ocb[i].dmamap); |
| 2053 | fwdma_free(sdev->dma.dma_tag, sdev->dma.dma_map, sdev->dma.v_addr); |
| 2054 | free(sdev, M_SBP); |
| 2055 | sdev = NULL; |
| 2056 | } |
| 2057 | |
| 2058 | static void |
| 2059 | sbp_free_target(struct sbp_target *target) |
| 2060 | { |
| 2061 | struct fw_xfer *xfer, *next; |
| 2062 | int i; |
| 2063 | |
| 2064 | if (target->luns == NULL) |
| 2065 | return; |
| 2066 | callout_stop(&target->mgm_ocb_timeout); |
| 2067 | for (i = 0; i < target->num_lun; i++) |
| 2068 | sbp_free_sdev(target->luns[i]); |
| 2069 | |
| 2070 | for (xfer = STAILQ_FIRST(&target->xferlist); |
| 2071 | xfer != NULL; xfer = next) { |
| 2072 | next = STAILQ_NEXT(xfer, link); |
| 2073 | fw_xfer_free_buf(xfer); |
| 2074 | } |
| 2075 | STAILQ_INIT(&target->xferlist); |
| 2076 | free(target->luns, M_SBP); |
| 2077 | target->num_lun = 0; |
| 2078 | target->luns = NULL; |
| 2079 | target->fwdev = NULL; |
| 2080 | } |
| 2081 | |
| 2082 | static void |
| 2083 | sbp_scsipi_detach_sdev(struct sbp_dev *sdev) |
| 2084 | { |
| 2085 | struct sbp_target *target; |
| 2086 | struct sbp_softc *sbp; |
| 2087 | |
| 2088 | if (sdev == NULL) |
| 2089 | return; |
| 2090 | |
| 2091 | target = sdev->target; |
| 2092 | if (target == NULL) |
| 2093 | return; |
| 2094 | |
| 2095 | sbp = target->sbp; |
| 2096 | |
| 2097 | if (sdev->status == SBP_DEV_DEAD) |
| 2098 | return; |
| 2099 | if (sdev->status == SBP_DEV_RESET) |
| 2100 | return; |
| 2101 | if (sdev->periph != NULL) { |
| 2102 | scsipi_periph_thaw(sdev->periph, sdev->freeze); |
| 2103 | scsipi_channel_thaw(&sbp->sc_channel, 0); /* XXXX */ |
| 2104 | sdev->freeze = 0; |
| 2105 | if (scsipi_target_detach(&sbp->sc_channel, |
| 2106 | target->target_id, sdev->lun_id, DETACH_FORCE) != 0) { |
| 2107 | aprint_error_dev(sbp->sc_fd.dev, "detach failed\n" ); |
| 2108 | } |
| 2109 | sdev->periph = NULL; |
| 2110 | } |
| 2111 | sbp_abort_all_ocbs(sdev, XS_DRIVER_STUFFUP); |
| 2112 | } |
| 2113 | |
| 2114 | static void |
| 2115 | sbp_scsipi_detach_target(struct sbp_target *target) |
| 2116 | { |
| 2117 | struct sbp_softc *sbp = target->sbp; |
| 2118 | int i; |
| 2119 | |
| 2120 | if (target->luns != NULL) { |
| 2121 | SBP_DEBUG(0) |
| 2122 | printf("sbp_detach_target %d\n" , target->target_id); |
| 2123 | END_DEBUG |
| 2124 | for (i = 0; i < target->num_lun; i++) |
| 2125 | sbp_scsipi_detach_sdev(target->luns[i]); |
| 2126 | if (config_detach(sbp->sc_bus, DETACH_FORCE) != 0) |
| 2127 | aprint_error_dev(sbp->sc_fd.dev, "%d detach failed\n" , |
| 2128 | target->target_id); |
| 2129 | sbp->sc_bus = NULL; |
| 2130 | } |
| 2131 | } |
| 2132 | |
| 2133 | static void |
| 2134 | sbp_target_reset(struct sbp_dev *sdev, int method) |
| 2135 | { |
| 2136 | struct sbp_target *target = sdev->target; |
| 2137 | struct sbp_dev *tsdev; |
| 2138 | int i; |
| 2139 | |
| 2140 | for (i = 0; i < target->num_lun; i++) { |
| 2141 | tsdev = target->luns[i]; |
| 2142 | if (tsdev == NULL) |
| 2143 | continue; |
| 2144 | if (tsdev->status == SBP_DEV_DEAD) |
| 2145 | continue; |
| 2146 | if (tsdev->status == SBP_DEV_RESET) |
| 2147 | continue; |
| 2148 | if (sdev->periph != NULL) { |
| 2149 | scsipi_periph_freeze(tsdev->periph, 1); |
| 2150 | tsdev->freeze++; |
| 2151 | } |
| 2152 | sbp_abort_all_ocbs(tsdev, XS_TIMEOUT); |
| 2153 | if (method == 2) |
| 2154 | tsdev->status = SBP_DEV_LOGIN; |
| 2155 | } |
| 2156 | switch (method) { |
| 2157 | case 1: |
| 2158 | aprint_error("target reset\n" ); |
| 2159 | sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); |
| 2160 | break; |
| 2161 | case 2: |
| 2162 | aprint_error("reset start\n" ); |
| 2163 | sbp_reset_start(sdev); |
| 2164 | break; |
| 2165 | } |
| 2166 | } |
| 2167 | |
| 2168 | static void |
| 2169 | sbp_mgm_timeout(void *arg) |
| 2170 | { |
| 2171 | struct sbp_ocb *ocb = (struct sbp_ocb *)arg; |
| 2172 | struct sbp_dev *sdev = ocb->sdev; |
| 2173 | struct sbp_target *target = sdev->target; |
| 2174 | |
| 2175 | aprint_error_dev(sdev->target->sbp->sc_fd.dev, |
| 2176 | "%s:%s: request timeout(mgm orb:0x%08x) ... " , |
| 2177 | __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); |
| 2178 | target->mgm_ocb_cur = NULL; |
| 2179 | sbp_free_ocb(sdev, ocb); |
| 2180 | #if 0 |
| 2181 | /* XXX */ |
| 2182 | aprint_error("run next request\n" ); |
| 2183 | sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); |
| 2184 | #endif |
| 2185 | aprint_error_dev(sdev->target->sbp->sc_fd.dev, |
| 2186 | "%s:%s: reset start\n" , __func__, sdev->bustgtlun); |
| 2187 | sbp_reset_start(sdev); |
| 2188 | } |
| 2189 | |
| 2190 | static void |
| 2191 | sbp_timeout(void *arg) |
| 2192 | { |
| 2193 | struct sbp_ocb *ocb = (struct sbp_ocb *)arg; |
| 2194 | struct sbp_dev *sdev = ocb->sdev; |
| 2195 | |
| 2196 | aprint_error_dev(sdev->target->sbp->sc_fd.dev, |
| 2197 | "%s:%s: request timeout(cmd orb:0x%08x) ... " , |
| 2198 | __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); |
| 2199 | |
| 2200 | sdev->timeout++; |
| 2201 | switch (sdev->timeout) { |
| 2202 | case 1: |
| 2203 | aprint_error("agent reset\n" ); |
| 2204 | if (sdev->periph != NULL) { |
| 2205 | scsipi_periph_freeze(sdev->periph, 1); |
| 2206 | sdev->freeze++; |
| 2207 | } |
| 2208 | sbp_abort_all_ocbs(sdev, XS_TIMEOUT); |
| 2209 | sbp_agent_reset(sdev); |
| 2210 | break; |
| 2211 | case 2: |
| 2212 | case 3: |
| 2213 | sbp_target_reset(sdev, sdev->timeout - 1); |
| 2214 | break; |
| 2215 | default: |
| 2216 | aprint_error("\n" ); |
| 2217 | #if 0 |
| 2218 | /* XXX give up */ |
| 2219 | sbp_scsipi_detach_target(target); |
| 2220 | if (target->luns != NULL) |
| 2221 | free(target->luns, M_SBP); |
| 2222 | target->num_lun = 0; |
| 2223 | target->luns = NULL; |
| 2224 | target->fwdev = NULL; |
| 2225 | #endif |
| 2226 | } |
| 2227 | } |
| 2228 | |
| 2229 | static void |
| 2230 | sbp_action1(struct sbp_softc *sc, struct scsipi_xfer *xs) |
| 2231 | { |
| 2232 | struct sbp_target *target = &sc->sc_target; |
| 2233 | struct sbp_dev *sdev = NULL; |
| 2234 | struct sbp_ocb *ocb; |
| 2235 | int speed, flag, error; |
| 2236 | void *cdb; |
| 2237 | |
| 2238 | /* target:lun -> sdev mapping */ |
| 2239 | if (target->fwdev != NULL && |
| 2240 | xs->xs_periph->periph_lun < target->num_lun) { |
| 2241 | sdev = target->luns[xs->xs_periph->periph_lun]; |
| 2242 | if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && |
| 2243 | sdev->status != SBP_DEV_PROBE) |
| 2244 | sdev = NULL; |
| 2245 | } |
| 2246 | |
| 2247 | if (sdev == NULL) { |
| 2248 | SBP_DEBUG(1) |
| 2249 | printf("%s:%d:%d: Invalid target (target needed)\n" , |
| 2250 | sc ? device_xname(sc->sc_fd.dev) : "???" , |
| 2251 | xs->xs_periph->periph_target, |
| 2252 | xs->xs_periph->periph_lun); |
| 2253 | END_DEBUG |
| 2254 | |
| 2255 | xs->error = XS_DRIVER_STUFFUP; |
| 2256 | scsipi_done(xs); |
| 2257 | return; |
| 2258 | } |
| 2259 | |
| 2260 | SBP_DEBUG(2) |
| 2261 | printf("%s:%d:%d:" |
| 2262 | " cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x," |
| 2263 | " flags: 0x%02x, %db cmd/%db data\n" , |
| 2264 | device_xname(sc->sc_fd.dev), |
| 2265 | xs->xs_periph->periph_target, |
| 2266 | xs->xs_periph->periph_lun, |
| 2267 | xs->cmd->opcode, |
| 2268 | xs->cmd->bytes[0], xs->cmd->bytes[1], |
| 2269 | xs->cmd->bytes[2], xs->cmd->bytes[3], |
| 2270 | xs->cmd->bytes[4], xs->cmd->bytes[5], |
| 2271 | xs->cmd->bytes[6], xs->cmd->bytes[7], |
| 2272 | xs->cmd->bytes[8], |
| 2273 | xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT), |
| 2274 | xs->cmdlen, xs->datalen); |
| 2275 | END_DEBUG |
| 2276 | mutex_enter(&sc->sc_mtx); |
| 2277 | ocb = sbp_get_ocb(sdev); |
| 2278 | mutex_exit(&sc->sc_mtx); |
| 2279 | if (ocb == NULL) { |
| 2280 | xs->error = XS_REQUEUE; |
| 2281 | if (sdev->freeze == 0) { |
| 2282 | scsipi_periph_freeze(sdev->periph, 1); |
| 2283 | sdev->freeze++; |
| 2284 | } |
| 2285 | scsipi_done(xs); |
| 2286 | return; |
| 2287 | } |
| 2288 | |
| 2289 | ocb->flags = OCB_ACT_CMD; |
| 2290 | ocb->sdev = sdev; |
| 2291 | ocb->xs = xs; |
| 2292 | ocb->orb[0] = htonl(1 << 31); |
| 2293 | ocb->orb[1] = 0; |
| 2294 | ocb->orb[2] = htonl(((sc->sc_fd.fc->nodeid | FWLOCALBUS) << 16)); |
| 2295 | ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); |
| 2296 | speed = min(target->fwdev->speed, max_speed); |
| 2297 | ocb->orb[4] = |
| 2298 | htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) | ORB_CMD_MAXP(speed + 7)); |
| 2299 | if ((xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) == |
| 2300 | XS_CTL_DATA_IN) { |
| 2301 | ocb->orb[4] |= htonl(ORB_CMD_IN); |
| 2302 | flag = BUS_DMA_READ; |
| 2303 | } else |
| 2304 | flag = BUS_DMA_WRITE; |
| 2305 | |
| 2306 | cdb = xs->cmd; |
| 2307 | memcpy((void *)&ocb->orb[5], cdb, xs->cmdlen); |
| 2308 | /* |
| 2309 | printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); |
| 2310 | printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); |
| 2311 | */ |
| 2312 | if (xs->datalen > 0) { |
| 2313 | error = bus_dmamap_load(sc->sc_dmat, ocb->dmamap, |
| 2314 | xs->data, xs->datalen, NULL, BUS_DMA_NOWAIT | flag); |
| 2315 | if (error) { |
| 2316 | aprint_error_dev(sc->sc_fd.dev, |
| 2317 | "DMA map load error %d\n" , error); |
| 2318 | xs->error = XS_DRIVER_STUFFUP; |
| 2319 | scsipi_done(xs); |
| 2320 | } else |
| 2321 | sbp_execute_ocb(ocb, ocb->dmamap->dm_segs, |
| 2322 | ocb->dmamap->dm_nsegs); |
| 2323 | } else |
| 2324 | sbp_execute_ocb(ocb, NULL, 0); |
| 2325 | |
| 2326 | return; |
| 2327 | } |
| 2328 | |
| 2329 | static void |
| 2330 | sbp_execute_ocb(struct sbp_ocb *ocb, bus_dma_segment_t *segments, int seg) |
| 2331 | { |
| 2332 | struct sbp_ocb *prev; |
| 2333 | bus_dma_segment_t *s; |
| 2334 | int i; |
| 2335 | |
| 2336 | SBP_DEBUG(2) |
| 2337 | printf("sbp_execute_ocb: seg %d" , seg); |
| 2338 | for (i = 0; i < seg; i++) |
| 2339 | printf(", %jx:%jd" , (uintmax_t)segments[i].ds_addr, |
| 2340 | (uintmax_t)segments[i].ds_len); |
| 2341 | printf("\n" ); |
| 2342 | END_DEBUG |
| 2343 | |
| 2344 | if (seg == 1) { |
| 2345 | /* direct pointer */ |
| 2346 | s = segments; |
| 2347 | if (s->ds_len > SBP_SEG_MAX) |
| 2348 | panic("ds_len > SBP_SEG_MAX, fix busdma code" ); |
| 2349 | ocb->orb[3] = htonl(s->ds_addr); |
| 2350 | ocb->orb[4] |= htonl(s->ds_len); |
| 2351 | } else if (seg > 1) { |
| 2352 | /* page table */ |
| 2353 | for (i = 0; i < seg; i++) { |
| 2354 | s = &segments[i]; |
| 2355 | SBP_DEBUG(0) |
| 2356 | /* XXX LSI Logic "< 16 byte" bug might be hit */ |
| 2357 | if (s->ds_len < 16) |
| 2358 | printf("sbp_execute_ocb: warning, " |
| 2359 | "segment length(%jd) is less than 16." |
| 2360 | "(seg=%d/%d)\n" , |
| 2361 | (uintmax_t)s->ds_len, i + 1, seg); |
| 2362 | END_DEBUG |
| 2363 | if (s->ds_len > SBP_SEG_MAX) |
| 2364 | panic("ds_len > SBP_SEG_MAX, fix busdma code" ); |
| 2365 | ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); |
| 2366 | ocb->ind_ptr[i].lo = htonl(s->ds_addr); |
| 2367 | } |
| 2368 | ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); |
| 2369 | } |
| 2370 | |
| 2371 | if (seg > 0) { |
| 2372 | struct sbp_softc *sc = ocb->sdev->target->sbp; |
| 2373 | const int flag = (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? |
| 2374 | BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE; |
| 2375 | |
| 2376 | bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, |
| 2377 | 0, ocb->dmamap->dm_mapsize, flag); |
| 2378 | } |
| 2379 | prev = sbp_enqueue_ocb(ocb->sdev, ocb); |
| 2380 | SBP_ORB_DMA_SYNC(ocb->sdev->dma, ocb->index, BUS_DMASYNC_PREWRITE); |
| 2381 | if (use_doorbell) { |
| 2382 | if (prev == NULL) { |
| 2383 | if (ocb->sdev->last_ocb != NULL) |
| 2384 | sbp_doorbell(ocb->sdev); |
| 2385 | else |
| 2386 | sbp_orb_pointer(ocb->sdev, ocb); |
| 2387 | } |
| 2388 | } else |
| 2389 | if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { |
| 2390 | ocb->sdev->flags &= ~ORB_LINK_DEAD; |
| 2391 | sbp_orb_pointer(ocb->sdev, ocb); |
| 2392 | } |
| 2393 | } |
| 2394 | |
| 2395 | static struct sbp_ocb * |
| 2396 | sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) |
| 2397 | { |
| 2398 | struct sbp_softc *sc = sdev->target->sbp; |
| 2399 | struct sbp_ocb *ocb; |
| 2400 | struct sbp_ocb *next; |
| 2401 | int order = 0; |
| 2402 | |
| 2403 | SBP_DEBUG(1) |
| 2404 | printf("%s:%s:%s: 0x%08x src %d\n" , device_xname(sc->sc_fd.dev), |
| 2405 | __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), |
| 2406 | sbp_status->src); |
| 2407 | END_DEBUG |
| 2408 | mutex_enter(&sc->sc_mtx); |
| 2409 | for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) { |
| 2410 | next = STAILQ_NEXT(ocb, ocb); |
| 2411 | if (OCB_MATCH(ocb, sbp_status)) { |
| 2412 | /* found */ |
| 2413 | SBP_ORB_DMA_SYNC(sdev->dma, ocb->index, |
| 2414 | BUS_DMASYNC_POSTWRITE); |
| 2415 | STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); |
| 2416 | if (ocb->xs != NULL) |
| 2417 | callout_stop(&ocb->xs->xs_callout); |
| 2418 | if (ntohl(ocb->orb[4]) & 0xffff) { |
| 2419 | const int flag = |
| 2420 | (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? |
| 2421 | BUS_DMASYNC_POSTREAD : |
| 2422 | BUS_DMASYNC_POSTWRITE; |
| 2423 | |
| 2424 | bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, |
| 2425 | 0, ocb->dmamap->dm_mapsize, flag); |
| 2426 | bus_dmamap_unload(sc->sc_dmat, ocb->dmamap); |
| 2427 | |
| 2428 | } |
| 2429 | if (!use_doorbell) { |
| 2430 | if (sbp_status->src == SRC_NO_NEXT) { |
| 2431 | if (next != NULL) |
| 2432 | sbp_orb_pointer(sdev, next); |
| 2433 | else if (order > 0) |
| 2434 | /* |
| 2435 | * Unordered execution |
| 2436 | * We need to send pointer for |
| 2437 | * next ORB |
| 2438 | */ |
| 2439 | sdev->flags |= ORB_LINK_DEAD; |
| 2440 | } |
| 2441 | } |
| 2442 | break; |
| 2443 | } else |
| 2444 | order++; |
| 2445 | } |
| 2446 | mutex_exit(&sc->sc_mtx); |
| 2447 | |
| 2448 | if (ocb && use_doorbell) { |
| 2449 | /* |
| 2450 | * XXX this is not correct for unordered |
| 2451 | * execution. |
| 2452 | */ |
| 2453 | if (sdev->last_ocb != NULL) |
| 2454 | sbp_free_ocb(sdev, sdev->last_ocb); |
| 2455 | sdev->last_ocb = ocb; |
| 2456 | if (next != NULL && |
| 2457 | sbp_status->src == SRC_NO_NEXT) |
| 2458 | sbp_doorbell(sdev); |
| 2459 | } |
| 2460 | |
| 2461 | SBP_DEBUG(0) |
| 2462 | if (ocb && order > 0) |
| 2463 | printf("%s:%s:%s: unordered execution order:%d\n" , |
| 2464 | device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun, |
| 2465 | order); |
| 2466 | END_DEBUG |
| 2467 | return ocb; |
| 2468 | } |
| 2469 | |
| 2470 | static struct sbp_ocb * |
| 2471 | sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) |
| 2472 | { |
| 2473 | struct sbp_softc *sc = sdev->target->sbp; |
| 2474 | struct sbp_ocb *tocb, *prev, *prev2; |
| 2475 | |
| 2476 | SBP_DEBUG(1) |
| 2477 | printf("%s:%s:%s: 0x%08jx\n" , device_xname(sc->sc_fd.dev), |
| 2478 | __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); |
| 2479 | END_DEBUG |
| 2480 | mutex_enter(&sc->sc_mtx); |
| 2481 | prev = NULL; |
| 2482 | STAILQ_FOREACH(tocb, &sdev->ocbs, ocb) |
| 2483 | prev = tocb; |
| 2484 | prev2 = prev; |
| 2485 | STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); |
| 2486 | mutex_exit(&sc->sc_mtx); |
| 2487 | |
| 2488 | callout_reset(&ocb->xs->xs_callout, mstohz(ocb->xs->timeout), |
| 2489 | sbp_timeout, ocb); |
| 2490 | |
| 2491 | if (use_doorbell && prev == NULL) |
| 2492 | prev2 = sdev->last_ocb; |
| 2493 | |
| 2494 | if (prev2 != NULL) { |
| 2495 | SBP_DEBUG(2) |
| 2496 | printf("linking chain 0x%jx -> 0x%jx\n" , |
| 2497 | (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr); |
| 2498 | END_DEBUG |
| 2499 | /* |
| 2500 | * Suppress compiler optimization so that orb[1] must be |
| 2501 | * written first. |
| 2502 | * XXX We may need an explicit memory barrier for other |
| 2503 | * architectures other than i386/amd64. |
| 2504 | */ |
| 2505 | *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr); |
| 2506 | *(volatile uint32_t *)&prev2->orb[0] = 0; |
| 2507 | } |
| 2508 | |
| 2509 | return prev; |
| 2510 | } |
| 2511 | |
| 2512 | static struct sbp_ocb * |
| 2513 | sbp_get_ocb(struct sbp_dev *sdev) |
| 2514 | { |
| 2515 | struct sbp_softc *sc = sdev->target->sbp; |
| 2516 | struct sbp_ocb *ocb; |
| 2517 | |
| 2518 | KASSERT(mutex_owned(&sc->sc_mtx)); |
| 2519 | |
| 2520 | ocb = STAILQ_FIRST(&sdev->free_ocbs); |
| 2521 | if (ocb == NULL) { |
| 2522 | sdev->flags |= ORB_SHORTAGE; |
| 2523 | aprint_error_dev(sc->sc_fd.dev, |
| 2524 | "ocb shortage!!!\n" ); |
| 2525 | return NULL; |
| 2526 | } |
| 2527 | STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); |
| 2528 | ocb->xs = NULL; |
| 2529 | return ocb; |
| 2530 | } |
| 2531 | |
| 2532 | static void |
| 2533 | sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) |
| 2534 | { |
| 2535 | struct sbp_softc *sc = sdev->target->sbp; |
| 2536 | int count; |
| 2537 | |
| 2538 | ocb->flags = 0; |
| 2539 | ocb->xs = NULL; |
| 2540 | |
| 2541 | mutex_enter(&sc->sc_mtx); |
| 2542 | STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); |
| 2543 | mutex_exit(&sc->sc_mtx); |
| 2544 | if (sdev->flags & ORB_SHORTAGE) { |
| 2545 | sdev->flags &= ~ORB_SHORTAGE; |
| 2546 | count = sdev->freeze; |
| 2547 | sdev->freeze = 0; |
| 2548 | if (sdev->periph) |
| 2549 | scsipi_periph_thaw(sdev->periph, count); |
| 2550 | scsipi_channel_thaw(&sc->sc_channel, 0); |
| 2551 | } |
| 2552 | } |
| 2553 | |
| 2554 | static void |
| 2555 | sbp_abort_ocb(struct sbp_ocb *ocb, int status) |
| 2556 | { |
| 2557 | struct sbp_softc *sc; |
| 2558 | struct sbp_dev *sdev; |
| 2559 | |
| 2560 | sdev = ocb->sdev; |
| 2561 | sc = sdev->target->sbp; |
| 2562 | SBP_DEBUG(0) |
| 2563 | printf("%s:%s:%s: sbp_abort_ocb 0x%jx\n" , device_xname(sc->sc_fd.dev), |
| 2564 | __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); |
| 2565 | END_DEBUG |
| 2566 | SBP_DEBUG(1) |
| 2567 | if (ocb->xs != NULL) |
| 2568 | sbp_print_scsi_cmd(ocb); |
| 2569 | END_DEBUG |
| 2570 | if (ntohl(ocb->orb[4]) & 0xffff) { |
| 2571 | const int flag = (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? |
| 2572 | BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE; |
| 2573 | |
| 2574 | bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, |
| 2575 | 0, ocb->dmamap->dm_mapsize, flag); |
| 2576 | bus_dmamap_unload(sc->sc_dmat, ocb->dmamap); |
| 2577 | } |
| 2578 | if (ocb->xs != NULL) { |
| 2579 | callout_stop(&ocb->xs->xs_callout); |
| 2580 | ocb->xs->error = status; |
| 2581 | scsipi_done(ocb->xs); |
| 2582 | } |
| 2583 | sbp_free_ocb(sdev, ocb); |
| 2584 | } |
| 2585 | |
| 2586 | static void |
| 2587 | sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) |
| 2588 | { |
| 2589 | struct sbp_softc *sc = sdev->target->sbp; |
| 2590 | struct sbp_ocb *ocb, *next; |
| 2591 | STAILQ_HEAD(, sbp_ocb) temp; |
| 2592 | |
| 2593 | mutex_enter(&sc->sc_mtx); |
| 2594 | STAILQ_INIT(&temp); |
| 2595 | STAILQ_CONCAT(&temp, &sdev->ocbs); |
| 2596 | STAILQ_INIT(&sdev->ocbs); |
| 2597 | mutex_exit(&sc->sc_mtx); |
| 2598 | |
| 2599 | for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) { |
| 2600 | next = STAILQ_NEXT(ocb, ocb); |
| 2601 | sbp_abort_ocb(ocb, status); |
| 2602 | } |
| 2603 | if (sdev->last_ocb != NULL) { |
| 2604 | sbp_free_ocb(sdev, sdev->last_ocb); |
| 2605 | sdev->last_ocb = NULL; |
| 2606 | } |
| 2607 | } |
| 2608 | |