1229997Sken/*- 2229997Sken * Copyright (c) 2008, 2009 Silicon Graphics International Corp. 3229997Sken * All rights reserved. 4229997Sken * 5229997Sken * Redistribution and use in source and binary forms, with or without 6229997Sken * modification, are permitted provided that the following conditions 7229997Sken * are met: 8229997Sken * 1. Redistributions of source code must retain the above copyright 9229997Sken * notice, this list of conditions, and the following disclaimer, 10229997Sken * without modification. 11229997Sken * 2. Redistributions in binary form must reproduce at minimum a disclaimer 12229997Sken * substantially similar to the "NO WARRANTY" disclaimer below 13229997Sken * ("Disclaimer") and any redistribution must be conditioned upon 14229997Sken * including a substantially similar Disclaimer requirement for further 15229997Sken * binary redistribution. 16229997Sken * 17229997Sken * NO WARRANTY 18229997Sken * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19229997Sken * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20229997Sken * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 21229997Sken * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22229997Sken * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23229997Sken * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24229997Sken * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25229997Sken * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 26229997Sken * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 27229997Sken * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28229997Sken * POSSIBILITY OF SUCH DAMAGES. 29229997Sken * 30229997Sken * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/scsi_ctl.c#4 $ 31229997Sken */ 32229997Sken/* 33229997Sken * Peripheral driver interface between CAM and CTL (CAM Target Layer). 34229997Sken * 35229997Sken * Author: Ken Merry <ken@FreeBSD.org> 36229997Sken */ 37229997Sken 38229997Sken#include <sys/cdefs.h> 39229997Sken__FBSDID("$FreeBSD$"); 40229997Sken 41229997Sken#include <sys/param.h> 42229997Sken#include <sys/queue.h> 43229997Sken#include <sys/systm.h> 44229997Sken#include <sys/kernel.h> 45229997Sken#include <sys/lock.h> 46229997Sken#include <sys/mutex.h> 47229997Sken#include <sys/condvar.h> 48229997Sken#include <sys/malloc.h> 49229997Sken#include <sys/bus.h> 50229997Sken#include <sys/endian.h> 51229997Sken#include <sys/sbuf.h> 52229997Sken#include <sys/sysctl.h> 53229997Sken#include <sys/types.h> 54229997Sken#include <sys/systm.h> 55229997Sken#include <machine/bus.h> 56229997Sken 57229997Sken#include <cam/cam.h> 58229997Sken#include <cam/cam_ccb.h> 59229997Sken#include <cam/cam_periph.h> 60229997Sken#include <cam/cam_queue.h> 61229997Sken#include <cam/cam_xpt_periph.h> 62229997Sken#include <cam/cam_debug.h> 63229997Sken#include <cam/cam_sim.h> 64229997Sken#include <cam/cam_xpt.h> 65229997Sken 66229997Sken#include <cam/scsi/scsi_all.h> 67229997Sken#include <cam/scsi/scsi_message.h> 68229997Sken 69229997Sken#include <cam/ctl/ctl_io.h> 70229997Sken#include <cam/ctl/ctl.h> 71229997Sken#include <cam/ctl/ctl_frontend.h> 72229997Sken#include <cam/ctl/ctl_util.h> 73229997Sken#include <cam/ctl/ctl_error.h> 74229997Sken 75229997Skentypedef enum { 76245228Sken CTLFE_CCB_DEFAULT = 0x00, 77229997Sken CTLFE_CCB_WAITING = 0x01 78229997Sken} ctlfe_ccb_types; 79229997Sken 80229997Skenstruct ctlfe_softc { 81229997Sken struct ctl_frontend fe; 82229997Sken path_id_t path_id; 83229997Sken struct cam_sim *sim; 84229997Sken char port_name[DEV_IDLEN]; 85229997Sken STAILQ_HEAD(, ctlfe_lun_softc) lun_softc_list; 86229997Sken STAILQ_ENTRY(ctlfe_softc) links; 87229997Sken}; 88229997Sken 89229997SkenSTAILQ_HEAD(, ctlfe_softc) ctlfe_softc_list; 90229997Skenstruct mtx ctlfe_list_mtx; 91229997Skenstatic char ctlfe_mtx_desc[] = "ctlfelist"; 92229997Skenstatic int ctlfe_dma_enabled = 1; 93229997Sken#ifdef CTLFE_INIT_ENABLE 94229997Skenstatic int ctlfe_max_targets = 1; 95229997Skenstatic int ctlfe_num_targets = 0; 96229997Sken#endif 97229997Sken 98229997Skentypedef enum { 99229997Sken CTLFE_LUN_NONE = 0x00, 100229997Sken CTLFE_LUN_WILDCARD = 0x01 101229997Sken} ctlfe_lun_flags; 102229997Sken 103229997Skenstruct ctlfe_lun_softc { 104229997Sken struct ctlfe_softc *parent_softc; 105229997Sken struct cam_periph *periph; 106229997Sken ctlfe_lun_flags flags; 107229997Sken struct callout dma_callout; 108229997Sken uint64_t ccbs_alloced; 109229997Sken uint64_t ccbs_freed; 110229997Sken uint64_t ctios_sent; 111229997Sken uint64_t ctios_returned; 112229997Sken uint64_t atios_sent; 113229997Sken uint64_t atios_returned; 114229997Sken uint64_t inots_sent; 115229997Sken uint64_t inots_returned; 116229997Sken /* bus_dma_tag_t dma_tag; */ 117229997Sken TAILQ_HEAD(, ccb_hdr) work_queue; 118229997Sken STAILQ_ENTRY(ctlfe_lun_softc) links; 119229997Sken}; 120229997Sken 121229997Skentypedef enum { 122229997Sken CTLFE_CMD_NONE = 0x00, 123229997Sken CTLFE_CMD_PIECEWISE = 0x01 124229997Sken} ctlfe_cmd_flags; 125229997Sken 126229997Sken/* 127229997Sken * The size limit of this structure is CTL_PORT_PRIV_SIZE, from ctl_io.h. 128229997Sken * Currently that is 600 bytes. 129229997Sken */ 130229997Skenstruct ctlfe_lun_cmd_info { 131229997Sken int cur_transfer_index; 132229997Sken ctlfe_cmd_flags flags; 133229997Sken /* 134229997Sken * XXX KDM struct bus_dma_segment is 8 bytes on i386, and 16 135229997Sken * bytes on amd64. So with 32 elements, this is 256 bytes on 136229997Sken * i386 and 512 bytes on amd64. 137229997Sken */ 138229997Sken bus_dma_segment_t cam_sglist[32]; 139229997Sken}; 140229997Sken 141229997Sken/* 142229997Sken * When we register the adapter/bus, request that this many ctl_ios be 143229997Sken * allocated. This should be the maximum supported by the adapter, but we 144229997Sken * currently don't have a way to get that back from the path inquiry. 145229997Sken * XXX KDM add that to the path inquiry. 146229997Sken */ 147229997Sken#define CTLFE_REQ_CTL_IO 4096 148229997Sken/* 149229997Sken * Number of Accept Target I/O CCBs to allocate and queue down to the 150229997Sken * adapter per LUN. 151229997Sken * XXX KDM should this be controlled by CTL? 152229997Sken */ 153229997Sken#define CTLFE_ATIO_PER_LUN 1024 154229997Sken/* 155229997Sken * Number of Immediate Notify CCBs (used for aborts, resets, etc.) to 156229997Sken * allocate and queue down to the adapter per LUN. 157229997Sken * XXX KDM should this be controlled by CTL? 158229997Sken */ 159229997Sken#define CTLFE_IN_PER_LUN 1024 160229997Sken 161229997Sken/* 162229997Sken * Timeout (in seconds) on CTIO CCB allocation for doing a DMA or sending 163229997Sken * status to the initiator. The SIM is expected to have its own timeouts, 164229997Sken * so we're not putting this timeout around the CCB execution time. The 165229997Sken * SIM should timeout and let us know if it has an issue. 166229997Sken */ 167229997Sken#define CTLFE_DMA_TIMEOUT 60 168229997Sken 169229997Sken/* 170229997Sken * Turn this on to enable extra debugging prints. 171229997Sken */ 172229997Sken#if 0 173229997Sken#define CTLFE_DEBUG 174229997Sken#endif 175229997Sken 176229997Sken/* 177229997Sken * Use randomly assigned WWNN/WWPN values. This is to work around an issue 178229997Sken * in the FreeBSD initiator that makes it unable to rescan the target if 179229997Sken * the target gets rebooted and the WWNN/WWPN stay the same. 180229997Sken */ 181229997Sken#if 0 182229997Sken#define RANDOM_WWNN 183229997Sken#endif 184229997Sken 185229997SkenSYSCTL_INT(_kern_cam_ctl, OID_AUTO, dma_enabled, CTLFLAG_RW, 186229997Sken &ctlfe_dma_enabled, 0, "DMA enabled"); 187229997SkenMALLOC_DEFINE(M_CTLFE, "CAM CTL FE", "CAM CTL FE interface"); 188229997Sken 189229997Sken#define ccb_type ppriv_field0 190229997Sken/* This is only used in the ATIO */ 191229997Sken#define io_ptr ppriv_ptr1 192229997Sken 193229997Sken/* This is only used in the CTIO */ 194229997Sken#define ccb_atio ppriv_ptr1 195229997Sken 196229997Skenint ctlfeinitialize(void); 197229997Skenvoid ctlfeshutdown(void); 198229997Skenstatic periph_init_t ctlfeinit; 199229997Skenstatic void ctlfeasync(void *callback_arg, uint32_t code, 200229997Sken struct cam_path *path, void *arg); 201229997Skenstatic periph_ctor_t ctlferegister; 202229997Skenstatic periph_oninv_t ctlfeoninvalidate; 203229997Skenstatic periph_dtor_t ctlfecleanup; 204229997Skenstatic periph_start_t ctlfestart; 205229997Skenstatic void ctlfedone(struct cam_periph *periph, 206229997Sken union ccb *done_ccb); 207229997Sken 208229997Skenstatic void ctlfe_onoffline(void *arg, int online); 209229997Skenstatic void ctlfe_online(void *arg); 210229997Skenstatic void ctlfe_offline(void *arg); 211229997Skenstatic int ctlfe_targ_enable(void *arg, struct ctl_id targ_id); 212229997Skenstatic int ctlfe_targ_disable(void *arg, struct ctl_id targ_id); 213229997Skenstatic int ctlfe_lun_enable(void *arg, struct ctl_id targ_id, 214229997Sken int lun_id); 215229997Skenstatic int ctlfe_lun_disable(void *arg, struct ctl_id targ_id, 216229997Sken int lun_id); 217229997Skenstatic void ctlfe_dump_sim(struct cam_sim *sim); 218229997Skenstatic void ctlfe_dump_queue(struct ctlfe_lun_softc *softc); 219229997Skenstatic void ctlfe_dma_timeout(void *arg); 220229997Skenstatic void ctlfe_datamove_done(union ctl_io *io); 221229997Skenstatic void ctlfe_dump(void); 222229997Sken 223229997Skenstatic struct periph_driver ctlfe_driver = 224229997Sken{ 225229997Sken ctlfeinit, "ctl", 226229997Sken TAILQ_HEAD_INITIALIZER(ctlfe_driver.units), /*generation*/ 0 227229997Sken}; 228229997Sken 229249009Straszstatic int ctlfe_module_event_handler(module_t, int /*modeventtype_t*/, void *); 230249009Strasz 231249009Strasz/* 232249009Strasz * We're not using PERIPHDRIVER_DECLARE(), because it runs at SI_SUB_DRIVERS, 233249009Strasz * and that happens before CTL gets initialised. 234249009Strasz */ 235249009Straszstatic moduledata_t ctlfe_moduledata = { 236249009Strasz "ctlfe", 237249009Strasz ctlfe_module_event_handler, 238249009Strasz NULL 239249009Strasz}; 240249009Strasz 241249009StraszDECLARE_MODULE(ctlfe, ctlfe_moduledata, SI_SUB_CONFIGURE, SI_ORDER_FOURTH); 242249009StraszMODULE_VERSION(ctlfe, 1); 243249009StraszMODULE_DEPEND(ctlfe, ctl, 1, 1, 1); 244249009StraszMODULE_DEPEND(ctlfe, cam, 1, 1, 1); 245249009Strasz 246229997Skenextern struct ctl_softc *control_softc; 247229997Sken 248229997Skenvoid 249229997Skenctlfeshutdown(void) 250229997Sken{ 251229997Sken return; 252229997Sken} 253229997Sken 254229997Skenvoid 255229997Skenctlfeinit(void) 256229997Sken{ 257229997Sken cam_status status; 258229997Sken 259229997Sken STAILQ_INIT(&ctlfe_softc_list); 260229997Sken 261229997Sken mtx_init(&ctlfe_list_mtx, ctlfe_mtx_desc, NULL, MTX_DEF); 262229997Sken 263229997Sken KASSERT(control_softc != NULL, ("CTL is not initialized!")); 264229997Sken 265229997Sken status = xpt_register_async(AC_PATH_REGISTERED | AC_PATH_DEREGISTERED | 266229997Sken AC_CONTRACT, ctlfeasync, NULL, NULL); 267229997Sken 268229997Sken if (status != CAM_REQ_CMP) { 269229997Sken printf("ctl: Failed to attach async callback due to CAM " 270229997Sken "status 0x%x!\n", status); 271229997Sken } 272229997Sken} 273229997Sken 274249009Straszstatic int 275249009Straszctlfe_module_event_handler(module_t mod, int what, void *arg) 276249009Strasz{ 277249009Strasz 278249009Strasz switch (what) { 279249009Strasz case MOD_LOAD: 280249009Strasz periphdriver_register(&ctlfe_driver); 281249009Strasz return (0); 282249009Strasz case MOD_UNLOAD: 283249009Strasz return (EBUSY); 284249009Strasz default: 285249009Strasz return (EOPNOTSUPP); 286249009Strasz } 287249009Strasz} 288249009Strasz 289229997Skenstatic void 290229997Skenctlfeasync(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) 291229997Sken{ 292229997Sken 293229997Sken#ifdef CTLFEDEBUG 294229997Sken printf("%s: entered\n", __func__); 295229997Sken#endif 296229997Sken 297229997Sken /* 298229997Sken * When a new path gets registered, and it is capable of target 299229997Sken * mode, go ahead and attach. Later on, we may need to be more 300229997Sken * selective, but for now this will be sufficient. 301229997Sken */ 302229997Sken switch (code) { 303229997Sken case AC_PATH_REGISTERED: { 304229997Sken struct ctl_frontend *fe; 305229997Sken struct ctlfe_softc *bus_softc; 306229997Sken struct ccb_pathinq *cpi; 307229997Sken int retval; 308229997Sken 309229997Sken cpi = (struct ccb_pathinq *)arg; 310229997Sken 311229997Sken /* Don't attach if it doesn't support target mode */ 312229997Sken if ((cpi->target_sprt & PIT_PROCESSOR) == 0) { 313230033Sken#ifdef CTLFEDEBUG 314229997Sken printf("%s: SIM %s%d doesn't support target mode\n", 315229997Sken __func__, cpi->dev_name, cpi->unit_number); 316230033Sken#endif 317229997Sken break; 318229997Sken } 319229997Sken 320229997Sken#ifdef CTLFE_INIT_ENABLE 321229997Sken if (ctlfe_num_targets >= ctlfe_max_targets) { 322229997Sken union ccb *ccb; 323229997Sken struct cam_sim *sim; 324229997Sken 325229997Sken ccb = (union ccb *)malloc(sizeof(*ccb), M_TEMP, 326229997Sken M_NOWAIT | M_ZERO); 327229997Sken if (ccb == NULL) { 328229997Sken printf("%s: unable to malloc CCB!\n", __func__); 329229997Sken return; 330229997Sken } 331229997Sken xpt_setup_ccb(&ccb->ccb_h, cpi->ccb_h.path, 332242174Smav CAM_PRIORITY_NONE); 333229997Sken 334229997Sken sim = xpt_path_sim(cpi->ccb_h.path); 335229997Sken 336229997Sken ccb->ccb_h.func_code = XPT_SET_SIM_KNOB; 337229997Sken ccb->knob.xport_specific.valid = KNOB_VALID_ROLE; 338229997Sken ccb->knob.xport_specific.fc.role = KNOB_ROLE_INITIATOR; 339229997Sken 340229997Sken /* We should hold the SIM lock here */ 341229997Sken mtx_assert(sim->mtx, MA_OWNED); 342229997Sken 343229997Sken xpt_action(ccb); 344229997Sken 345229997Sken if ((ccb->ccb_h.status & CAM_STATUS_MASK) != 346229997Sken CAM_REQ_CMP) { 347229997Sken printf("%s: SIM %s%d (path id %d) initiator " 348229997Sken "enable failed with status %#x\n", 349229997Sken __func__, cpi->dev_name, 350229997Sken cpi->unit_number, cpi->ccb_h.path_id, 351229997Sken ccb->ccb_h.status); 352229997Sken } else { 353229997Sken printf("%s: SIM %s%d (path id %d) initiator " 354229997Sken "enable succeeded\n", 355229997Sken __func__, cpi->dev_name, 356229997Sken cpi->unit_number, cpi->ccb_h.path_id); 357229997Sken } 358229997Sken 359229997Sken free(ccb, M_TEMP); 360229997Sken 361229997Sken break; 362229997Sken } else { 363229997Sken ctlfe_num_targets++; 364229997Sken } 365229997Sken 366229997Sken printf("%s: ctlfe_num_targets = %d\n", __func__, 367229997Sken ctlfe_num_targets); 368229997Sken#endif /* CTLFE_INIT_ENABLE */ 369229997Sken 370229997Sken /* 371229997Sken * We're in an interrupt context here, so we have to 372229997Sken * use M_NOWAIT. Of course this means trouble if we 373229997Sken * can't allocate memory. 374229997Sken */ 375229997Sken bus_softc = malloc(sizeof(*bus_softc), M_CTLFE, 376229997Sken M_NOWAIT | M_ZERO); 377229997Sken if (bus_softc == NULL) { 378229997Sken printf("%s: unable to malloc %zd bytes for softc\n", 379229997Sken __func__, sizeof(*bus_softc)); 380229997Sken return; 381229997Sken } 382229997Sken 383229997Sken bus_softc->path_id = cpi->ccb_h.path_id; 384229997Sken bus_softc->sim = xpt_path_sim(cpi->ccb_h.path); 385229997Sken STAILQ_INIT(&bus_softc->lun_softc_list); 386229997Sken 387229997Sken fe = &bus_softc->fe; 388229997Sken 389229997Sken /* 390229997Sken * XXX KDM should we be more accurate here ? 391229997Sken */ 392229997Sken if (cpi->transport == XPORT_FC) 393229997Sken fe->port_type = CTL_PORT_FC; 394229997Sken else 395229997Sken fe->port_type = CTL_PORT_SCSI; 396229997Sken 397229997Sken /* XXX KDM what should the real number be here? */ 398229997Sken fe->num_requested_ctl_io = 4096; 399229997Sken snprintf(bus_softc->port_name, sizeof(bus_softc->port_name), 400229997Sken "%s%d", cpi->dev_name, cpi->unit_number); 401229997Sken /* 402229997Sken * XXX KDM it would be nice to allocate storage in the 403229997Sken * frontend structure itself. 404229997Sken */ 405229997Sken fe->port_name = bus_softc->port_name; 406229997Sken fe->physical_port = cpi->unit_number; 407229997Sken fe->virtual_port = cpi->bus_id; 408229997Sken fe->port_online = ctlfe_online; 409229997Sken fe->port_offline = ctlfe_offline; 410229997Sken fe->onoff_arg = bus_softc; 411229997Sken fe->targ_enable = ctlfe_targ_enable; 412229997Sken fe->targ_disable = ctlfe_targ_disable; 413229997Sken fe->lun_enable = ctlfe_lun_enable; 414229997Sken fe->lun_disable = ctlfe_lun_disable; 415229997Sken fe->targ_lun_arg = bus_softc; 416229997Sken fe->fe_datamove = ctlfe_datamove_done; 417229997Sken fe->fe_done = ctlfe_datamove_done; 418229997Sken fe->fe_dump = ctlfe_dump; 419229997Sken /* 420229997Sken * XXX KDM the path inquiry doesn't give us the maximum 421229997Sken * number of targets supported. 422229997Sken */ 423229997Sken fe->max_targets = cpi->max_target; 424229997Sken fe->max_target_id = cpi->max_target; 425229997Sken 426229997Sken /* 427229997Sken * XXX KDM need to figure out whether we're the master or 428229997Sken * slave. 429229997Sken */ 430230033Sken#ifdef CTLFEDEBUG 431229997Sken printf("%s: calling ctl_frontend_register() for %s%d\n", 432229997Sken __func__, cpi->dev_name, cpi->unit_number); 433230033Sken#endif 434229997Sken retval = ctl_frontend_register(fe, /*master_SC*/ 1); 435229997Sken if (retval != 0) { 436229997Sken printf("%s: ctl_frontend_register() failed with " 437229997Sken "error %d!\n", __func__, retval); 438229997Sken free(bus_softc, M_CTLFE); 439229997Sken break; 440229997Sken } else { 441229997Sken mtx_lock(&ctlfe_list_mtx); 442229997Sken STAILQ_INSERT_TAIL(&ctlfe_softc_list, bus_softc, links); 443229997Sken mtx_unlock(&ctlfe_list_mtx); 444229997Sken } 445229997Sken 446245228Sken break; 447245228Sken } 448245228Sken case AC_PATH_DEREGISTERED: { 449245228Sken struct ctlfe_softc *softc = NULL; 450245228Sken 451245228Sken mtx_lock(&ctlfe_list_mtx); 452245228Sken STAILQ_FOREACH(softc, &ctlfe_softc_list, links) { 453245228Sken if (softc->path_id == xpt_path_path_id(path)) { 454245228Sken STAILQ_REMOVE(&ctlfe_softc_list, softc, 455245228Sken ctlfe_softc, links); 456245228Sken break; 457245228Sken } 458229997Sken } 459245228Sken mtx_unlock(&ctlfe_list_mtx); 460245228Sken 461245228Sken if (softc != NULL) { 462245228Sken /* 463245228Sken * XXX KDM are we certain at this point that there 464245228Sken * are no outstanding commands for this frontend? 465245228Sken */ 466245228Sken ctl_frontend_deregister(&softc->fe); 467245228Sken free(softc, M_CTLFE); 468229997Sken } 469229997Sken break; 470229997Sken } 471229997Sken case AC_CONTRACT: { 472229997Sken struct ac_contract *ac; 473229997Sken 474229997Sken ac = (struct ac_contract *)arg; 475229997Sken 476229997Sken switch (ac->contract_number) { 477229997Sken case AC_CONTRACT_DEV_CHG: { 478229997Sken struct ac_device_changed *dev_chg; 479229997Sken struct ctlfe_softc *softc; 480229997Sken int retval, found; 481229997Sken 482229997Sken dev_chg = (struct ac_device_changed *)ac->contract_data; 483229997Sken 484236426Smjacob printf("%s: WWPN %#jx port 0x%06x path %u target %u %s\n", 485229997Sken __func__, dev_chg->wwpn, dev_chg->port, 486229997Sken xpt_path_path_id(path), dev_chg->target, 487229997Sken (dev_chg->arrived == 0) ? "left" : "arrived"); 488229997Sken 489229997Sken found = 0; 490229997Sken 491229997Sken mtx_lock(&ctlfe_list_mtx); 492229997Sken STAILQ_FOREACH(softc, &ctlfe_softc_list, links) { 493229997Sken if (softc->path_id == xpt_path_path_id(path)) { 494229997Sken found = 1; 495229997Sken break; 496229997Sken } 497229997Sken } 498229997Sken mtx_unlock(&ctlfe_list_mtx); 499229997Sken 500229997Sken if (found == 0) { 501229997Sken printf("%s: CTL port for CAM path %u not " 502229997Sken "found!\n", __func__, 503229997Sken xpt_path_path_id(path)); 504229997Sken break; 505229997Sken } 506229997Sken if (dev_chg->arrived != 0) { 507229997Sken retval = ctl_add_initiator(dev_chg->wwpn, 508229997Sken softc->fe.targ_port, dev_chg->target); 509229997Sken } else { 510229997Sken retval = ctl_remove_initiator( 511229997Sken softc->fe.targ_port, dev_chg->target); 512229997Sken } 513229997Sken 514229997Sken if (retval != 0) { 515229997Sken printf("%s: could not %s port %d iid %u " 516229997Sken "WWPN %#jx!\n", __func__, 517229997Sken (dev_chg->arrived != 0) ? "add" : 518229997Sken "remove", softc->fe.targ_port, 519229997Sken dev_chg->target, 520229997Sken (uintmax_t)dev_chg->wwpn); 521229997Sken } 522229997Sken break; 523229997Sken } 524229997Sken default: 525229997Sken printf("%s: unsupported contract number %ju\n", 526229997Sken __func__, (uintmax_t)ac->contract_number); 527229997Sken break; 528229997Sken } 529229997Sken break; 530229997Sken } 531229997Sken default: 532229997Sken break; 533229997Sken } 534229997Sken} 535229997Sken 536229997Skenstatic cam_status 537229997Skenctlferegister(struct cam_periph *periph, void *arg) 538229997Sken{ 539229997Sken struct ctlfe_softc *bus_softc; 540229997Sken struct ctlfe_lun_softc *softc; 541229997Sken struct cam_sim *sim; 542229997Sken union ccb en_lun_ccb; 543229997Sken cam_status status; 544229997Sken int i; 545229997Sken 546229997Sken softc = (struct ctlfe_lun_softc *)arg; 547229997Sken bus_softc = softc->parent_softc; 548229997Sken sim = xpt_path_sim(periph->path); 549229997Sken 550229997Sken TAILQ_INIT(&softc->work_queue); 551229997Sken softc->periph = periph; 552229997Sken 553229997Sken callout_init_mtx(&softc->dma_callout, sim->mtx, /*flags*/ 0); 554229997Sken periph->softc = softc; 555229997Sken 556242174Smav xpt_setup_ccb(&en_lun_ccb.ccb_h, periph->path, CAM_PRIORITY_NONE); 557229997Sken en_lun_ccb.ccb_h.func_code = XPT_EN_LUN; 558229997Sken en_lun_ccb.cel.grp6_len = 0; 559229997Sken en_lun_ccb.cel.grp7_len = 0; 560229997Sken en_lun_ccb.cel.enable = 1; 561229997Sken xpt_action(&en_lun_ccb); 562229997Sken status = (en_lun_ccb.ccb_h.status & CAM_STATUS_MASK); 563229997Sken if (status != CAM_REQ_CMP) { 564229997Sken xpt_print(periph->path, "%s: Enable LUN failed, status 0x%x\n", 565229997Sken __func__, en_lun_ccb.ccb_h.status); 566229997Sken return (status); 567229997Sken } 568229997Sken 569229997Sken status = CAM_REQ_CMP; 570229997Sken 571229997Sken for (i = 0; i < CTLFE_ATIO_PER_LUN; i++) { 572229997Sken union ccb *new_ccb; 573229997Sken 574229997Sken new_ccb = (union ccb *)malloc(sizeof(*new_ccb), M_CTLFE, 575236426Smjacob M_ZERO|M_NOWAIT); 576229997Sken if (new_ccb == NULL) { 577229997Sken status = CAM_RESRC_UNAVAIL; 578229997Sken break; 579229997Sken } 580229997Sken xpt_setup_ccb(&new_ccb->ccb_h, periph->path, /*priority*/ 1); 581229997Sken new_ccb->ccb_h.func_code = XPT_ACCEPT_TARGET_IO; 582229997Sken new_ccb->ccb_h.cbfcnp = ctlfedone; 583229997Sken xpt_action(new_ccb); 584229997Sken softc->atios_sent++; 585229997Sken status = new_ccb->ccb_h.status; 586229997Sken if ((status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 587229997Sken free(new_ccb, M_CTLFE); 588229997Sken break; 589229997Sken } 590229997Sken } 591229997Sken 592229997Sken status = cam_periph_acquire(periph); 593229997Sken if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 594229997Sken xpt_print(periph->path, "%s: could not acquire reference " 595229997Sken "count, status = %#x\n", __func__, status); 596229997Sken return (status); 597229997Sken } 598229997Sken 599229997Sken if (i == 0) { 600229997Sken xpt_print(periph->path, "%s: could not allocate ATIO CCBs, " 601229997Sken "status 0x%x\n", __func__, status); 602229997Sken return (CAM_REQ_CMP_ERR); 603229997Sken } 604229997Sken 605229997Sken for (i = 0; i < CTLFE_IN_PER_LUN; i++) { 606229997Sken union ccb *new_ccb; 607229997Sken 608229997Sken new_ccb = (union ccb *)malloc(sizeof(*new_ccb), M_CTLFE, 609236426Smjacob M_ZERO|M_NOWAIT); 610229997Sken if (new_ccb == NULL) { 611229997Sken status = CAM_RESRC_UNAVAIL; 612229997Sken break; 613229997Sken } 614229997Sken 615229997Sken xpt_setup_ccb(&new_ccb->ccb_h, periph->path, /*priority*/ 1); 616229997Sken new_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY; 617229997Sken new_ccb->ccb_h.cbfcnp = ctlfedone; 618229997Sken xpt_action(new_ccb); 619229997Sken softc->inots_sent++; 620229997Sken status = new_ccb->ccb_h.status; 621237601Sken if ((status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 622237601Sken /* 623237601Sken * Note that we don't free the CCB here. If the 624237601Sken * status is not CAM_REQ_INPROG, then we're 625237601Sken * probably talking to a SIM that says it is 626237601Sken * target-capable but doesn't support the 627237601Sken * XPT_IMMEDIATE_NOTIFY CCB. i.e. it supports the 628237601Sken * older API. In that case, it'll call xpt_done() 629237601Sken * on the CCB, and we need to free it in our done 630237601Sken * routine as a result. 631237601Sken */ 632229997Sken break; 633229997Sken } 634229997Sken } 635237601Sken if ((i == 0) 636237601Sken || (status != CAM_REQ_INPROG)) { 637229997Sken xpt_print(periph->path, "%s: could not allocate immediate " 638229997Sken "notify CCBs, status 0x%x\n", __func__, status); 639229997Sken return (CAM_REQ_CMP_ERR); 640229997Sken } 641229997Sken return (CAM_REQ_CMP); 642229997Sken} 643229997Sken 644229997Skenstatic void 645229997Skenctlfeoninvalidate(struct cam_periph *periph) 646229997Sken{ 647229997Sken union ccb en_lun_ccb; 648229997Sken cam_status status; 649229997Sken struct ctlfe_lun_softc *softc; 650229997Sken 651229997Sken softc = (struct ctlfe_lun_softc *)periph->softc; 652229997Sken 653242174Smav xpt_setup_ccb(&en_lun_ccb.ccb_h, periph->path, CAM_PRIORITY_NONE); 654229997Sken en_lun_ccb.ccb_h.func_code = XPT_EN_LUN; 655229997Sken en_lun_ccb.cel.grp6_len = 0; 656229997Sken en_lun_ccb.cel.grp7_len = 0; 657229997Sken en_lun_ccb.cel.enable = 0; 658229997Sken xpt_action(&en_lun_ccb); 659229997Sken status = (en_lun_ccb.ccb_h.status & CAM_STATUS_MASK); 660229997Sken if (status != CAM_REQ_CMP) { 661229997Sken xpt_print(periph->path, "%s: Disable LUN failed, status 0x%x\n", 662229997Sken __func__, en_lun_ccb.ccb_h.status); 663229997Sken /* 664229997Sken * XXX KDM what do we do now? 665229997Sken */ 666229997Sken } 667229997Sken xpt_print(periph->path, "LUN removed, %ju ATIOs outstanding, %ju " 668229997Sken "INOTs outstanding, %d refs\n", softc->atios_sent - 669229997Sken softc->atios_returned, softc->inots_sent - 670229997Sken softc->inots_returned, periph->refcount); 671229997Sken} 672229997Sken 673229997Skenstatic void 674229997Skenctlfecleanup(struct cam_periph *periph) 675229997Sken{ 676229997Sken struct ctlfe_lun_softc *softc; 677229997Sken struct ctlfe_softc *bus_softc; 678229997Sken 679229997Sken xpt_print(periph->path, "%s: Called\n", __func__); 680229997Sken 681229997Sken softc = (struct ctlfe_lun_softc *)periph->softc; 682229997Sken bus_softc = softc->parent_softc; 683229997Sken 684245228Sken STAILQ_REMOVE(&bus_softc->lun_softc_list, softc, ctlfe_lun_softc, links); 685229997Sken 686229997Sken /* 687229997Sken * XXX KDM is there anything else that needs to be done here? 688229997Sken */ 689245228Sken 690245228Sken callout_stop(&softc->dma_callout); 691245228Sken 692229997Sken free(softc, M_CTLFE); 693229997Sken} 694229997Sken 695229997Skenstatic void 696229997Skenctlfestart(struct cam_periph *periph, union ccb *start_ccb) 697229997Sken{ 698229997Sken struct ctlfe_lun_softc *softc; 699229997Sken struct ccb_hdr *ccb_h; 700229997Sken 701229997Sken softc = (struct ctlfe_lun_softc *)periph->softc; 702229997Sken 703229997Sken softc->ccbs_alloced++; 704229997Sken 705245228Sken start_ccb->ccb_h.ccb_type = CTLFE_CCB_DEFAULT; 706245228Sken 707229997Sken ccb_h = TAILQ_FIRST(&softc->work_queue); 708229997Sken if (periph->immediate_priority <= periph->pinfo.priority) { 709229997Sken panic("shouldn't get to the CCB waiting case!"); 710229997Sken start_ccb->ccb_h.ccb_type = CTLFE_CCB_WAITING; 711229997Sken SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 712229997Sken periph_links.sle); 713229997Sken periph->immediate_priority = CAM_PRIORITY_NONE; 714229997Sken wakeup(&periph->ccb_list); 715229997Sken } else if (ccb_h == NULL) { 716229997Sken softc->ccbs_freed++; 717229997Sken xpt_release_ccb(start_ccb); 718229997Sken } else { 719229997Sken struct ccb_accept_tio *atio; 720229997Sken struct ccb_scsiio *csio; 721229997Sken uint8_t *data_ptr; 722229997Sken uint32_t dxfer_len; 723229997Sken ccb_flags flags; 724229997Sken union ctl_io *io; 725229997Sken uint8_t scsi_status; 726229997Sken 727229997Sken /* Take the ATIO off the work queue */ 728229997Sken TAILQ_REMOVE(&softc->work_queue, ccb_h, periph_links.tqe); 729229997Sken atio = (struct ccb_accept_tio *)ccb_h; 730229997Sken io = (union ctl_io *)ccb_h->io_ptr; 731229997Sken csio = &start_ccb->csio; 732229997Sken 733229997Sken flags = atio->ccb_h.flags & 734229997Sken (CAM_DIS_DISCONNECT|CAM_TAG_ACTION_VALID|CAM_DIR_MASK); 735229997Sken 736229997Sken if ((io == NULL) 737229997Sken || (io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 738229997Sken /* 739229997Sken * We're done, send status back. 740229997Sken */ 741229997Sken flags |= CAM_SEND_STATUS; 742229997Sken if (io == NULL) { 743229997Sken scsi_status = SCSI_STATUS_BUSY; 744229997Sken csio->sense_len = 0; 745229997Sken } else if ((io->io_hdr.status & CTL_STATUS_MASK) == 746229997Sken CTL_CMD_ABORTED) { 747229997Sken io->io_hdr.flags &= ~CTL_FLAG_STATUS_QUEUED; 748229997Sken 749229997Sken /* 750229997Sken * If this command was aborted, we don't 751229997Sken * need to send status back to the SIM. 752229997Sken * Just free the CTIO and ctl_io, and 753229997Sken * recycle the ATIO back to the SIM. 754229997Sken */ 755229997Sken xpt_print(periph->path, "%s: aborted " 756229997Sken "command 0x%04x discarded\n", 757229997Sken __func__, io->scsiio.tag_num); 758229997Sken ctl_free_io(io); 759229997Sken /* 760229997Sken * For a wildcard attachment, commands can 761229997Sken * come in with a specific target/lun. Reset 762229997Sken * the target and LUN fields back to the 763229997Sken * wildcard values before we send them back 764229997Sken * down to the SIM. The SIM has a wildcard 765229997Sken * LUN enabled, not whatever target/lun 766229997Sken * these happened to be. 767229997Sken */ 768229997Sken if (softc->flags & CTLFE_LUN_WILDCARD) { 769229997Sken atio->ccb_h.target_id = 770229997Sken CAM_TARGET_WILDCARD; 771229997Sken atio->ccb_h.target_lun = 772229997Sken CAM_LUN_WILDCARD; 773229997Sken } 774229997Sken 775229997Sken if ((atio->ccb_h.status & CAM_DEV_QFRZN) != 0) { 776229997Sken cam_release_devq(periph->path, 777229997Sken /*relsim_flags*/0, 778229997Sken /*reduction*/0, 779229997Sken /*timeout*/0, 780229997Sken /*getcount_only*/0); 781229997Sken atio->ccb_h.status &= ~CAM_DEV_QFRZN; 782229997Sken } 783229997Sken 784229997Sken ccb_h = TAILQ_FIRST(&softc->work_queue); 785229997Sken 786229997Sken if (atio->ccb_h.func_code != 787229997Sken XPT_ACCEPT_TARGET_IO) { 788229997Sken xpt_print(periph->path, "%s: func_code " 789229997Sken "is %#x\n", __func__, 790229997Sken atio->ccb_h.func_code); 791229997Sken } 792229997Sken start_ccb->ccb_h.func_code = XPT_ABORT; 793229997Sken start_ccb->cab.abort_ccb = (union ccb *)atio; 794229997Sken start_ccb->ccb_h.cbfcnp = ctlfedone; 795229997Sken 796229997Sken /* Tell the SIM that we've aborted this ATIO */ 797229997Sken xpt_action(start_ccb); 798229997Sken softc->ccbs_freed++; 799229997Sken xpt_release_ccb(start_ccb); 800229997Sken 801229997Sken /* 802229997Sken * Send the ATIO back down to the SIM. 803229997Sken */ 804229997Sken xpt_action((union ccb *)atio); 805229997Sken softc->atios_sent++; 806229997Sken 807229997Sken /* 808229997Sken * If we still have work to do, ask for 809229997Sken * another CCB. Otherwise, deactivate our 810229997Sken * callout. 811229997Sken */ 812229997Sken if (ccb_h != NULL) 813229997Sken xpt_schedule(periph, /*priority*/ 1); 814229997Sken else 815229997Sken callout_stop(&softc->dma_callout); 816229997Sken 817229997Sken return; 818229997Sken } else { 819229997Sken io->io_hdr.flags &= ~CTL_FLAG_STATUS_QUEUED; 820229997Sken scsi_status = io->scsiio.scsi_status; 821229997Sken csio->sense_len = io->scsiio.sense_len; 822229997Sken } 823229997Sken data_ptr = NULL; 824229997Sken dxfer_len = 0; 825229997Sken if (io == NULL) { 826229997Sken printf("%s: tag %04x io is NULL\n", __func__, 827229997Sken atio->tag_id); 828229997Sken } else { 829229997Sken#ifdef CTLFEDEBUG 830229997Sken printf("%s: tag %04x status %x\n", __func__, 831229997Sken atio->tag_id, io->io_hdr.status); 832229997Sken#endif 833229997Sken } 834229997Sken csio->sglist_cnt = 0; 835229997Sken if (csio->sense_len != 0) { 836229997Sken csio->sense_data = io->scsiio.sense_data; 837229997Sken flags |= CAM_SEND_SENSE; 838229997Sken } else if (scsi_status == SCSI_STATUS_CHECK_COND) { 839229997Sken xpt_print(periph->path, "%s: check condition " 840229997Sken "with no sense\n", __func__); 841229997Sken } 842229997Sken } else { 843229997Sken struct ctlfe_lun_cmd_info *cmd_info; 844229997Sken 845229997Sken /* 846229997Sken * Datamove call, we need to setup the S/G list. 847229997Sken */ 848229997Sken 849229997Sken cmd_info = (struct ctlfe_lun_cmd_info *) 850229997Sken io->io_hdr.port_priv; 851229997Sken 852229997Sken KASSERT(sizeof(*cmd_info) < CTL_PORT_PRIV_SIZE, 853229997Sken ("%s: sizeof(struct ctlfe_lun_cmd_info) %zd < " 854229997Sken "CTL_PORT_PRIV_SIZE %d", __func__, 855229997Sken sizeof(*cmd_info), CTL_PORT_PRIV_SIZE)); 856229997Sken io->io_hdr.flags &= ~CTL_FLAG_DMA_QUEUED; 857229997Sken 858229997Sken /* 859229997Sken * Need to zero this, in case it has been used for 860229997Sken * a previous datamove for this particular I/O. 861229997Sken */ 862229997Sken bzero(cmd_info, sizeof(*cmd_info)); 863229997Sken scsi_status = 0; 864229997Sken 865229997Sken /* 866229997Sken * Set the direction, relative to the initiator. 867229997Sken */ 868229997Sken flags &= ~CAM_DIR_MASK; 869229997Sken if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 870229997Sken CTL_FLAG_DATA_IN) 871229997Sken flags |= CAM_DIR_IN; 872229997Sken else 873229997Sken flags |= CAM_DIR_OUT; 874229997Sken 875229997Sken csio->cdb_len = atio->cdb_len; 876229997Sken 877246713Skib flags &= ~CAM_DATA_MASK; 878229997Sken if (io->scsiio.kern_sg_entries == 0) { 879229997Sken /* No S/G list */ 880229997Sken data_ptr = io->scsiio.kern_data_ptr; 881229997Sken dxfer_len = io->scsiio.kern_data_len; 882229997Sken csio->sglist_cnt = 0; 883229997Sken 884229997Sken if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) 885246713Skib flags |= CAM_DATA_PADDR; 886246713Skib else 887246713Skib flags |= CAM_DATA_VADDR; 888229997Sken } else if (io->scsiio.kern_sg_entries <= 889229997Sken (sizeof(cmd_info->cam_sglist)/ 890229997Sken sizeof(cmd_info->cam_sglist[0]))) { 891229997Sken /* 892229997Sken * S/G list with physical or virtual pointers. 893229997Sken * Just populate the CAM S/G list with the 894229997Sken * pointers. 895229997Sken */ 896229997Sken int i; 897229997Sken struct ctl_sg_entry *ctl_sglist; 898229997Sken bus_dma_segment_t *cam_sglist; 899229997Sken 900229997Sken ctl_sglist = (struct ctl_sg_entry *) 901229997Sken io->scsiio.kern_data_ptr; 902229997Sken cam_sglist = cmd_info->cam_sglist; 903229997Sken 904229997Sken for (i = 0; i < io->scsiio.kern_sg_entries;i++){ 905229997Sken cam_sglist[i].ds_addr = 906229997Sken (bus_addr_t)ctl_sglist[i].addr; 907229997Sken cam_sglist[i].ds_len = 908229997Sken ctl_sglist[i].len; 909229997Sken } 910229997Sken csio->sglist_cnt = io->scsiio.kern_sg_entries; 911229997Sken if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) 912246713Skib flags |= CAM_DATA_SG_PADDR; 913229997Sken else 914249028Sken flags |= CAM_DATA_SG; 915229997Sken data_ptr = (uint8_t *)cam_sglist; 916229997Sken dxfer_len = io->scsiio.kern_data_len; 917229997Sken } else { 918229997Sken /* S/G list with virtual pointers */ 919229997Sken struct ctl_sg_entry *sglist; 920229997Sken int *ti; 921229997Sken 922229997Sken /* 923245228Sken * If we have more S/G list pointers than 924245228Sken * will fit in the available storage in the 925245228Sken * cmd_info structure inside the ctl_io header, 926245228Sken * then we need to send down the pointers 927245228Sken * one element at a time. 928229997Sken */ 929245228Sken 930229997Sken sglist = (struct ctl_sg_entry *) 931229997Sken io->scsiio.kern_data_ptr; 932229997Sken ti = &cmd_info->cur_transfer_index; 933229997Sken data_ptr = sglist[*ti].addr; 934229997Sken dxfer_len = sglist[*ti].len; 935229997Sken csio->sglist_cnt = 0; 936249028Sken if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) 937249028Sken flags |= CAM_DATA_PADDR; 938249028Sken else 939249028Sken flags |= CAM_DATA_VADDR; 940229997Sken cmd_info->flags |= CTLFE_CMD_PIECEWISE; 941229997Sken (*ti)++; 942229997Sken } 943229997Sken 944229997Sken io->scsiio.ext_data_filled += dxfer_len; 945229997Sken 946229997Sken if (io->scsiio.ext_data_filled > 947229997Sken io->scsiio.kern_total_len) { 948229997Sken xpt_print(periph->path, "%s: tag 0x%04x " 949229997Sken "fill len %u > total %u\n", 950229997Sken __func__, io->scsiio.tag_num, 951229997Sken io->scsiio.ext_data_filled, 952229997Sken io->scsiio.kern_total_len); 953229997Sken } 954229997Sken } 955229997Sken 956229997Sken#ifdef CTLFEDEBUG 957229997Sken printf("%s: %s: tag %04x flags %x ptr %p len %u\n", __func__, 958229997Sken (flags & CAM_SEND_STATUS) ? "done" : "datamove", 959229997Sken atio->tag_id, flags, data_ptr, dxfer_len); 960229997Sken#endif 961229997Sken 962229997Sken /* 963229997Sken * Valid combinations: 964255117Smav * - CAM_SEND_STATUS, CAM_DATA_SG = 0, dxfer_len = 0, 965229997Sken * sglist_cnt = 0 966255117Smav * - CAM_SEND_STATUS = 0, CAM_DATA_SG = 0, dxfer_len != 0, 967229997Sken * sglist_cnt = 0 968255117Smav * - CAM_SEND_STATUS = 0, CAM_DATA_SG, dxfer_len != 0, 969229997Sken * sglist_cnt != 0 970229997Sken */ 971229997Sken#ifdef CTLFEDEBUG 972229997Sken if (((flags & CAM_SEND_STATUS) 973255117Smav && (((flags & CAM_DATA_SG) != 0) 974229997Sken || (dxfer_len != 0) 975229997Sken || (csio->sglist_cnt != 0))) 976229997Sken || (((flags & CAM_SEND_STATUS) == 0) 977229997Sken && (dxfer_len == 0)) 978255117Smav || ((flags & CAM_DATA_SG) 979229997Sken && (csio->sglist_cnt == 0)) 980255117Smav || (((flags & CAM_DATA_SG) == 0) 981229997Sken && (csio->sglist_cnt != 0))) { 982229997Sken printf("%s: tag %04x cdb %02x flags %#x dxfer_len " 983229997Sken "%d sg %u\n", __func__, atio->tag_id, 984229997Sken atio->cdb_io.cdb_bytes[0], flags, dxfer_len, 985229997Sken csio->sglist_cnt); 986229997Sken if (io != NULL) { 987229997Sken printf("%s: tag %04x io status %#x\n", __func__, 988229997Sken atio->tag_id, io->io_hdr.status); 989229997Sken } else { 990229997Sken printf("%s: tag %04x no associated io\n", 991229997Sken __func__, atio->tag_id); 992229997Sken } 993229997Sken } 994229997Sken#endif 995229997Sken cam_fill_ctio(csio, 996229997Sken /*retries*/ 2, 997229997Sken ctlfedone, 998229997Sken flags, 999229997Sken (flags & CAM_TAG_ACTION_VALID) ? 1000229997Sken MSG_SIMPLE_Q_TAG : 0, 1001229997Sken atio->tag_id, 1002229997Sken atio->init_id, 1003229997Sken scsi_status, 1004229997Sken /*data_ptr*/ data_ptr, 1005229997Sken /*dxfer_len*/ dxfer_len, 1006229997Sken /*timeout*/ 5 * 1000); 1007229997Sken start_ccb->ccb_h.ccb_atio = atio; 1008229997Sken if (((flags & CAM_SEND_STATUS) == 0) 1009229997Sken && (io != NULL)) 1010229997Sken io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 1011229997Sken 1012229997Sken softc->ctios_sent++; 1013229997Sken 1014229997Sken xpt_action(start_ccb); 1015229997Sken 1016229997Sken if ((atio->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1017229997Sken cam_release_devq(periph->path, 1018229997Sken /*relsim_flags*/0, 1019229997Sken /*reduction*/0, 1020229997Sken /*timeout*/0, 1021229997Sken /*getcount_only*/0); 1022229997Sken atio->ccb_h.status &= ~CAM_DEV_QFRZN; 1023229997Sken } 1024229997Sken 1025229997Sken ccb_h = TAILQ_FIRST(&softc->work_queue); 1026229997Sken } 1027229997Sken /* 1028229997Sken * If we still have work to do, ask for another CCB. Otherwise, 1029229997Sken * deactivate our callout. 1030229997Sken */ 1031229997Sken if (ccb_h != NULL) 1032229997Sken xpt_schedule(periph, /*priority*/ 1); 1033229997Sken else 1034229997Sken callout_stop(&softc->dma_callout); 1035229997Sken} 1036229997Sken 1037229997Skenstatic void 1038229997Skenctlfe_free_ccb(struct cam_periph *periph, union ccb *ccb) 1039229997Sken{ 1040229997Sken struct ctlfe_lun_softc *softc; 1041229997Sken 1042229997Sken softc = (struct ctlfe_lun_softc *)periph->softc; 1043229997Sken 1044229997Sken switch (ccb->ccb_h.func_code) { 1045229997Sken case XPT_ACCEPT_TARGET_IO: 1046229997Sken softc->atios_returned++; 1047229997Sken break; 1048229997Sken case XPT_IMMEDIATE_NOTIFY: 1049229997Sken case XPT_NOTIFY_ACKNOWLEDGE: 1050229997Sken softc->inots_returned++; 1051229997Sken break; 1052229997Sken default: 1053229997Sken break; 1054229997Sken } 1055229997Sken 1056229997Sken free(ccb, M_CTLFE); 1057229997Sken 1058229997Sken KASSERT(softc->atios_returned <= softc->atios_sent, ("%s: " 1059229997Sken "atios_returned %ju > atios_sent %ju", __func__, 1060229997Sken softc->atios_returned, softc->atios_sent)); 1061229997Sken KASSERT(softc->inots_returned <= softc->inots_sent, ("%s: " 1062229997Sken "inots_returned %ju > inots_sent %ju", __func__, 1063229997Sken softc->inots_returned, softc->inots_sent)); 1064229997Sken 1065229997Sken /* 1066229997Sken * If we have received all of our CCBs, we can release our 1067229997Sken * reference on the peripheral driver. It will probably go away 1068229997Sken * now. 1069229997Sken */ 1070229997Sken if ((softc->atios_returned == softc->atios_sent) 1071229997Sken && (softc->inots_returned == softc->inots_sent)) { 1072229997Sken cam_periph_release_locked(periph); 1073229997Sken } 1074229997Sken} 1075229997Sken 1076238870Smjacobstatic int 1077238870Smjacobctlfe_adjust_cdb(struct ccb_accept_tio *atio, uint32_t offset) 1078238870Smjacob{ 1079238870Smjacob uint64_t lba; 1080238870Smjacob uint32_t num_blocks, nbc; 1081238870Smjacob uint8_t *cmdbyt = (atio->ccb_h.flags & CAM_CDB_POINTER)? 1082238870Smjacob atio->cdb_io.cdb_ptr : atio->cdb_io.cdb_bytes; 1083238870Smjacob 1084238870Smjacob nbc = offset >> 9; /* ASSUMING 512 BYTE BLOCKS */ 1085238870Smjacob 1086238870Smjacob switch (cmdbyt[0]) { 1087238870Smjacob case READ_6: 1088238870Smjacob case WRITE_6: 1089238870Smjacob { 1090238870Smjacob struct scsi_rw_6 *cdb = (struct scsi_rw_6 *)cmdbyt; 1091238870Smjacob lba = scsi_3btoul(cdb->addr); 1092238870Smjacob lba &= 0x1fffff; 1093238870Smjacob num_blocks = cdb->length; 1094238870Smjacob if (num_blocks == 0) 1095238870Smjacob num_blocks = 256; 1096238870Smjacob lba += nbc; 1097238870Smjacob num_blocks -= nbc; 1098238870Smjacob scsi_ulto3b(lba, cdb->addr); 1099238870Smjacob cdb->length = num_blocks; 1100238870Smjacob break; 1101238870Smjacob } 1102238870Smjacob case READ_10: 1103238870Smjacob case WRITE_10: 1104238870Smjacob { 1105238870Smjacob struct scsi_rw_10 *cdb = (struct scsi_rw_10 *)cmdbyt; 1106238870Smjacob lba = scsi_4btoul(cdb->addr); 1107238870Smjacob num_blocks = scsi_2btoul(cdb->length); 1108238870Smjacob lba += nbc; 1109238870Smjacob num_blocks -= nbc; 1110238870Smjacob scsi_ulto4b(lba, cdb->addr); 1111238870Smjacob scsi_ulto2b(num_blocks, cdb->length); 1112238870Smjacob break; 1113238870Smjacob } 1114238870Smjacob case READ_12: 1115238870Smjacob case WRITE_12: 1116238870Smjacob { 1117238870Smjacob struct scsi_rw_12 *cdb = (struct scsi_rw_12 *)cmdbyt; 1118238870Smjacob lba = scsi_4btoul(cdb->addr); 1119238870Smjacob num_blocks = scsi_4btoul(cdb->length); 1120238870Smjacob lba += nbc; 1121238870Smjacob num_blocks -= nbc; 1122238870Smjacob scsi_ulto4b(lba, cdb->addr); 1123238870Smjacob scsi_ulto4b(num_blocks, cdb->length); 1124238870Smjacob break; 1125238870Smjacob } 1126238870Smjacob case READ_16: 1127238870Smjacob case WRITE_16: 1128238870Smjacob { 1129238870Smjacob struct scsi_rw_16 *cdb = (struct scsi_rw_16 *)cmdbyt; 1130238870Smjacob lba = scsi_8btou64(cdb->addr); 1131238870Smjacob num_blocks = scsi_4btoul(cdb->length); 1132238870Smjacob lba += nbc; 1133238870Smjacob num_blocks -= nbc; 1134238870Smjacob scsi_u64to8b(lba, cdb->addr); 1135238870Smjacob scsi_ulto4b(num_blocks, cdb->length); 1136238870Smjacob break; 1137238870Smjacob } 1138238870Smjacob default: 1139238870Smjacob return -1; 1140238870Smjacob } 1141238870Smjacob return (0); 1142238870Smjacob} 1143238870Smjacob 1144229997Skenstatic void 1145229997Skenctlfedone(struct cam_periph *periph, union ccb *done_ccb) 1146229997Sken{ 1147229997Sken struct ctlfe_lun_softc *softc; 1148229997Sken struct ctlfe_softc *bus_softc; 1149238870Smjacob struct ccb_accept_tio *atio = NULL; 1150238870Smjacob union ctl_io *io = NULL; 1151229997Sken 1152229997Sken#ifdef CTLFE_DEBUG 1153229997Sken printf("%s: entered, func_code = %#x, type = %#lx\n", __func__, 1154229997Sken done_ccb->ccb_h.func_code, done_ccb->ccb_h.ccb_type); 1155229997Sken#endif 1156229997Sken 1157229997Sken softc = (struct ctlfe_lun_softc *)periph->softc; 1158229997Sken bus_softc = softc->parent_softc; 1159229997Sken 1160229997Sken if (done_ccb->ccb_h.ccb_type == CTLFE_CCB_WAITING) { 1161229997Sken panic("shouldn't get to the CCB waiting case!"); 1162229997Sken wakeup(&done_ccb->ccb_h.cbfcnp); 1163229997Sken return; 1164229997Sken } 1165229997Sken 1166229997Sken /* 1167229997Sken * If the peripheral is invalid, ATIOs and immediate notify CCBs 1168229997Sken * need to be freed. Most of the ATIOs and INOTs that come back 1169229997Sken * will be CCBs that are being returned from the SIM as a result of 1170229997Sken * our disabling the LUN. 1171229997Sken * 1172229997Sken * Other CCB types are handled in their respective cases below. 1173229997Sken */ 1174229997Sken if (periph->flags & CAM_PERIPH_INVALID) { 1175229997Sken switch (done_ccb->ccb_h.func_code) { 1176229997Sken case XPT_ACCEPT_TARGET_IO: 1177229997Sken case XPT_IMMEDIATE_NOTIFY: 1178229997Sken case XPT_NOTIFY_ACKNOWLEDGE: 1179229997Sken ctlfe_free_ccb(periph, done_ccb); 1180229997Sken return; 1181229997Sken default: 1182229997Sken break; 1183229997Sken } 1184229997Sken 1185229997Sken } 1186229997Sken switch (done_ccb->ccb_h.func_code) { 1187229997Sken case XPT_ACCEPT_TARGET_IO: { 1188229997Sken 1189229997Sken atio = &done_ccb->atio; 1190229997Sken 1191229997Sken softc->atios_returned++; 1192229997Sken 1193238870Smjacob resubmit: 1194229997Sken /* 1195229997Sken * Allocate a ctl_io, pass it to CTL, and wait for the 1196229997Sken * datamove or done. 1197229997Sken */ 1198229997Sken io = ctl_alloc_io(bus_softc->fe.ctl_pool_ref); 1199229997Sken if (io == NULL) { 1200229997Sken atio->ccb_h.flags &= ~CAM_DIR_MASK; 1201229997Sken atio->ccb_h.flags |= CAM_DIR_NONE; 1202229997Sken 1203229997Sken printf("%s: ctl_alloc_io failed!\n", __func__); 1204229997Sken 1205229997Sken /* 1206229997Sken * XXX KDM need to set SCSI_STATUS_BUSY, but there 1207229997Sken * is no field in the ATIO structure to do that, 1208229997Sken * and we aren't able to allocate a ctl_io here. 1209229997Sken * What to do? 1210229997Sken */ 1211229997Sken atio->sense_len = 0; 1212229997Sken done_ccb->ccb_h.io_ptr = NULL; 1213229997Sken TAILQ_INSERT_TAIL(&softc->work_queue, &atio->ccb_h, 1214229997Sken periph_links.tqe); 1215229997Sken xpt_schedule(periph, /*priority*/ 1); 1216229997Sken break; 1217229997Sken } 1218229997Sken ctl_zero_io(io); 1219229997Sken 1220229997Sken /* Save pointers on both sides */ 1221229997Sken io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = done_ccb; 1222229997Sken done_ccb->ccb_h.io_ptr = io; 1223229997Sken 1224229997Sken /* 1225229997Sken * Only SCSI I/O comes down this path, resets, etc. come 1226229997Sken * down the immediate notify path below. 1227229997Sken */ 1228229997Sken io->io_hdr.io_type = CTL_IO_SCSI; 1229229997Sken io->io_hdr.nexus.initid.id = atio->init_id; 1230229997Sken io->io_hdr.nexus.targ_port = bus_softc->fe.targ_port; 1231229997Sken io->io_hdr.nexus.targ_target.id = atio->ccb_h.target_id; 1232229997Sken io->io_hdr.nexus.targ_lun = atio->ccb_h.target_lun; 1233229997Sken io->scsiio.tag_num = atio->tag_id; 1234229997Sken switch (atio->tag_action) { 1235229997Sken case CAM_TAG_ACTION_NONE: 1236229997Sken io->scsiio.tag_type = CTL_TAG_UNTAGGED; 1237229997Sken break; 1238229997Sken case MSG_SIMPLE_TASK: 1239229997Sken io->scsiio.tag_type = CTL_TAG_SIMPLE; 1240229997Sken break; 1241229997Sken case MSG_HEAD_OF_QUEUE_TASK: 1242229997Sken io->scsiio.tag_type = CTL_TAG_HEAD_OF_QUEUE; 1243229997Sken break; 1244229997Sken case MSG_ORDERED_TASK: 1245229997Sken io->scsiio.tag_type = CTL_TAG_ORDERED; 1246229997Sken break; 1247229997Sken case MSG_ACA_TASK: 1248229997Sken io->scsiio.tag_type = CTL_TAG_ACA; 1249229997Sken break; 1250229997Sken default: 1251229997Sken io->scsiio.tag_type = CTL_TAG_UNTAGGED; 1252229997Sken printf("%s: unhandled tag type %#x!!\n", __func__, 1253229997Sken atio->tag_action); 1254229997Sken break; 1255229997Sken } 1256229997Sken if (atio->cdb_len > sizeof(io->scsiio.cdb)) { 1257229997Sken printf("%s: WARNING: CDB len %d > ctl_io space %zd\n", 1258229997Sken __func__, atio->cdb_len, sizeof(io->scsiio.cdb)); 1259229997Sken } 1260229997Sken io->scsiio.cdb_len = min(atio->cdb_len, sizeof(io->scsiio.cdb)); 1261229997Sken bcopy(atio->cdb_io.cdb_bytes, io->scsiio.cdb, 1262229997Sken io->scsiio.cdb_len); 1263229997Sken 1264229997Sken#ifdef CTLFEDEBUG 1265229997Sken printf("%s: %ju:%d:%ju:%d: tag %04x CDB %02x\n", __func__, 1266229997Sken (uintmax_t)io->io_hdr.nexus.initid.id, 1267229997Sken io->io_hdr.nexus.targ_port, 1268229997Sken (uintmax_t)io->io_hdr.nexus.targ_target.id, 1269229997Sken io->io_hdr.nexus.targ_lun, 1270229997Sken io->scsiio.tag_num, io->scsiio.cdb[0]); 1271229997Sken#endif 1272229997Sken 1273229997Sken ctl_queue(io); 1274229997Sken break; 1275229997Sken } 1276229997Sken case XPT_CONT_TARGET_IO: { 1277238870Smjacob int srr = 0; 1278238870Smjacob uint32_t srr_off = 0; 1279229997Sken 1280229997Sken atio = (struct ccb_accept_tio *)done_ccb->ccb_h.ccb_atio; 1281229997Sken io = (union ctl_io *)atio->ccb_h.io_ptr; 1282229997Sken 1283229997Sken softc->ctios_returned++; 1284229997Sken#ifdef CTLFEDEBUG 1285229997Sken printf("%s: got XPT_CONT_TARGET_IO tag %#x flags %#x\n", 1286229997Sken __func__, atio->tag_id, done_ccb->ccb_h.flags); 1287229997Sken#endif 1288229997Sken /* 1289238870Smjacob * Handle SRR case were the data pointer is pushed back hack 1290238870Smjacob */ 1291238870Smjacob if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_MESSAGE_RECV 1292238870Smjacob && done_ccb->csio.msg_ptr != NULL 1293238870Smjacob && done_ccb->csio.msg_ptr[0] == MSG_EXTENDED 1294238870Smjacob && done_ccb->csio.msg_ptr[1] == 5 1295238870Smjacob && done_ccb->csio.msg_ptr[2] == 0) { 1296238870Smjacob srr = 1; 1297238870Smjacob srr_off = 1298238870Smjacob (done_ccb->csio.msg_ptr[3] << 24) 1299238870Smjacob | (done_ccb->csio.msg_ptr[4] << 16) 1300238870Smjacob | (done_ccb->csio.msg_ptr[5] << 8) 1301238870Smjacob | (done_ccb->csio.msg_ptr[6]); 1302238870Smjacob } 1303238870Smjacob 1304238870Smjacob if (srr && (done_ccb->ccb_h.flags & CAM_SEND_STATUS)) { 1305238870Smjacob /* 1306238870Smjacob * If status was being sent, the back end data is now 1307238870Smjacob * history. Hack it up and resubmit a new command with 1308238870Smjacob * the CDB adjusted. If the SIM does the right thing, 1309238870Smjacob * all of the resid math should work. 1310238870Smjacob */ 1311238870Smjacob softc->ccbs_freed++; 1312238870Smjacob xpt_release_ccb(done_ccb); 1313238870Smjacob ctl_free_io(io); 1314238870Smjacob if (ctlfe_adjust_cdb(atio, srr_off) == 0) { 1315238870Smjacob done_ccb = (union ccb *)atio; 1316238870Smjacob goto resubmit; 1317238870Smjacob } 1318238870Smjacob /* 1319238870Smjacob * Fall through to doom.... 1320238870Smjacob */ 1321238870Smjacob } else if (srr) { 1322238870Smjacob /* 1323238870Smjacob * If we have an srr and we're still sending data, we 1324238870Smjacob * should be able to adjust offsets and cycle again. 1325238870Smjacob */ 1326238870Smjacob io->scsiio.kern_rel_offset = 1327238870Smjacob io->scsiio.ext_data_filled = srr_off; 1328238870Smjacob io->scsiio.ext_data_len = io->scsiio.kern_total_len - 1329238870Smjacob io->scsiio.kern_rel_offset; 1330238870Smjacob softc->ccbs_freed++; 1331238870Smjacob io->scsiio.io_hdr.status = CTL_STATUS_NONE; 1332238870Smjacob xpt_release_ccb(done_ccb); 1333238870Smjacob TAILQ_INSERT_HEAD(&softc->work_queue, &atio->ccb_h, 1334238870Smjacob periph_links.tqe); 1335238870Smjacob xpt_schedule(periph, /*priority*/ 1); 1336238870Smjacob return; 1337238870Smjacob } 1338238870Smjacob 1339238870Smjacob /* 1340229997Sken * If we were sending status back to the initiator, free up 1341229997Sken * resources. If we were doing a datamove, call the 1342229997Sken * datamove done routine. 1343229997Sken */ 1344229997Sken if (done_ccb->ccb_h.flags & CAM_SEND_STATUS) { 1345229997Sken softc->ccbs_freed++; 1346229997Sken xpt_release_ccb(done_ccb); 1347229997Sken ctl_free_io(io); 1348229997Sken /* 1349229997Sken * For a wildcard attachment, commands can come in 1350229997Sken * with a specific target/lun. Reset the target 1351229997Sken * and LUN fields back to the wildcard values before 1352229997Sken * we send them back down to the SIM. The SIM has 1353229997Sken * a wildcard LUN enabled, not whatever target/lun 1354229997Sken * these happened to be. 1355229997Sken */ 1356229997Sken if (softc->flags & CTLFE_LUN_WILDCARD) { 1357229997Sken atio->ccb_h.target_id = CAM_TARGET_WILDCARD; 1358229997Sken atio->ccb_h.target_lun = CAM_LUN_WILDCARD; 1359229997Sken } 1360229997Sken if (periph->flags & CAM_PERIPH_INVALID) { 1361229997Sken ctlfe_free_ccb(periph, (union ccb *)atio); 1362229997Sken return; 1363229997Sken } else { 1364229997Sken xpt_action((union ccb *)atio); 1365229997Sken softc->atios_sent++; 1366229997Sken } 1367229997Sken } else { 1368229997Sken struct ctlfe_lun_cmd_info *cmd_info; 1369229997Sken struct ccb_scsiio *csio; 1370229997Sken 1371229997Sken csio = &done_ccb->csio; 1372229997Sken cmd_info = (struct ctlfe_lun_cmd_info *) 1373229997Sken io->io_hdr.port_priv; 1374229997Sken 1375229997Sken io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1376229997Sken 1377229997Sken io->scsiio.ext_data_len += csio->dxfer_len; 1378229997Sken if (io->scsiio.ext_data_len > 1379229997Sken io->scsiio.kern_total_len) { 1380229997Sken xpt_print(periph->path, "%s: tag 0x%04x " 1381229997Sken "done len %u > total %u sent %u\n", 1382229997Sken __func__, io->scsiio.tag_num, 1383229997Sken io->scsiio.ext_data_len, 1384229997Sken io->scsiio.kern_total_len, 1385229997Sken io->scsiio.ext_data_filled); 1386229997Sken } 1387229997Sken /* 1388229997Sken * Translate CAM status to CTL status. Success 1389229997Sken * does not change the overall, ctl_io status. In 1390229997Sken * that case we just set port_status to 0. If we 1391229997Sken * have a failure, though, set a data phase error 1392229997Sken * for the overall ctl_io. 1393229997Sken */ 1394229997Sken switch (done_ccb->ccb_h.status & CAM_STATUS_MASK) { 1395229997Sken case CAM_REQ_CMP: 1396229997Sken io->io_hdr.port_status = 0; 1397229997Sken break; 1398229997Sken default: 1399229997Sken /* 1400245228Sken * XXX KDM we probably need to figure out a 1401245228Sken * standard set of errors that the SIM 1402245228Sken * drivers should return in the event of a 1403245228Sken * data transfer failure. A data phase 1404245228Sken * error will at least point the user to a 1405245228Sken * data transfer error of some sort. 1406245228Sken * Hopefully the SIM printed out some 1407245228Sken * additional information to give the user 1408245228Sken * a clue what happened. 1409229997Sken */ 1410229997Sken io->io_hdr.port_status = 0xbad1; 1411229997Sken ctl_set_data_phase_error(&io->scsiio); 1412229997Sken /* 1413229997Sken * XXX KDM figure out residual. 1414229997Sken */ 1415229997Sken break; 1416229997Sken } 1417229997Sken /* 1418229997Sken * If we had to break this S/G list into multiple 1419229997Sken * pieces, figure out where we are in the list, and 1420229997Sken * continue sending pieces if necessary. 1421229997Sken */ 1422229997Sken if ((cmd_info->flags & CTLFE_CMD_PIECEWISE) 1423229997Sken && (io->io_hdr.port_status == 0) 1424229997Sken && (cmd_info->cur_transfer_index < 1425229997Sken io->scsiio.kern_sg_entries)) { 1426229997Sken struct ctl_sg_entry *sglist; 1427229997Sken ccb_flags flags; 1428229997Sken uint8_t scsi_status; 1429229997Sken uint8_t *data_ptr; 1430229997Sken uint32_t dxfer_len; 1431229997Sken int *ti; 1432229997Sken 1433229997Sken sglist = (struct ctl_sg_entry *) 1434229997Sken io->scsiio.kern_data_ptr; 1435229997Sken ti = &cmd_info->cur_transfer_index; 1436229997Sken flags = atio->ccb_h.flags & 1437229997Sken (CAM_DIS_DISCONNECT| 1438229997Sken CAM_TAG_ACTION_VALID| 1439229997Sken CAM_DIR_MASK); 1440229997Sken 1441229997Sken /* 1442229997Sken * Set the direction, relative to the initiator. 1443229997Sken */ 1444229997Sken flags &= ~CAM_DIR_MASK; 1445229997Sken if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1446229997Sken CTL_FLAG_DATA_IN) 1447229997Sken flags |= CAM_DIR_IN; 1448229997Sken else 1449229997Sken flags |= CAM_DIR_OUT; 1450229997Sken 1451229997Sken data_ptr = sglist[*ti].addr; 1452229997Sken dxfer_len = sglist[*ti].len; 1453229997Sken (*ti)++; 1454229997Sken 1455229997Sken scsi_status = 0; 1456229997Sken 1457229997Sken if (((flags & CAM_SEND_STATUS) == 0) 1458229997Sken && (dxfer_len == 0)) { 1459229997Sken printf("%s: tag %04x no status or " 1460229997Sken "len cdb = %02x\n", __func__, 1461229997Sken atio->tag_id, 1462229997Sken atio->cdb_io.cdb_bytes[0]); 1463229997Sken printf("%s: tag %04x io status %#x\n", 1464229997Sken __func__, atio->tag_id, 1465229997Sken io->io_hdr.status); 1466229997Sken } 1467229997Sken 1468229997Sken cam_fill_ctio(csio, 1469229997Sken /*retries*/ 2, 1470229997Sken ctlfedone, 1471229997Sken flags, 1472229997Sken (flags & CAM_TAG_ACTION_VALID) ? 1473229997Sken MSG_SIMPLE_Q_TAG : 0, 1474229997Sken atio->tag_id, 1475229997Sken atio->init_id, 1476229997Sken scsi_status, 1477229997Sken /*data_ptr*/ data_ptr, 1478229997Sken /*dxfer_len*/ dxfer_len, 1479229997Sken /*timeout*/ 5 * 1000); 1480229997Sken 1481229997Sken csio->resid = 0; 1482229997Sken csio->ccb_h.ccb_atio = atio; 1483229997Sken io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 1484229997Sken softc->ctios_sent++; 1485229997Sken xpt_action((union ccb *)csio); 1486229997Sken } else { 1487229997Sken /* 1488229997Sken * Release the CTIO. The ATIO will be sent back 1489229997Sken * down to the SIM once we send status. 1490229997Sken */ 1491229997Sken softc->ccbs_freed++; 1492229997Sken xpt_release_ccb(done_ccb); 1493229997Sken 1494229997Sken /* Call the backend move done callback */ 1495229997Sken io->scsiio.be_move_done(io); 1496229997Sken } 1497229997Sken } 1498229997Sken break; 1499229997Sken } 1500229997Sken case XPT_IMMEDIATE_NOTIFY: { 1501229997Sken union ctl_io *io; 1502229997Sken struct ccb_immediate_notify *inot; 1503229997Sken cam_status status; 1504229997Sken int frozen; 1505229997Sken 1506229997Sken inot = &done_ccb->cin1; 1507229997Sken 1508229997Sken softc->inots_returned++; 1509229997Sken 1510229997Sken frozen = (done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1511229997Sken 1512229997Sken printf("%s: got XPT_IMMEDIATE_NOTIFY status %#x tag %#x " 1513229997Sken "seq %#x\n", __func__, inot->ccb_h.status, 1514229997Sken inot->tag_id, inot->seq_id); 1515229997Sken 1516229997Sken io = ctl_alloc_io(bus_softc->fe.ctl_pool_ref); 1517229997Sken if (io != NULL) { 1518229997Sken int send_ctl_io; 1519229997Sken 1520229997Sken send_ctl_io = 1; 1521229997Sken 1522229997Sken ctl_zero_io(io); 1523229997Sken io->io_hdr.io_type = CTL_IO_TASK; 1524229997Sken io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr =done_ccb; 1525229997Sken inot->ccb_h.io_ptr = io; 1526229997Sken io->io_hdr.nexus.initid.id = inot->initiator_id; 1527229997Sken io->io_hdr.nexus.targ_port = bus_softc->fe.targ_port; 1528229997Sken io->io_hdr.nexus.targ_target.id = inot->ccb_h.target_id; 1529229997Sken io->io_hdr.nexus.targ_lun = inot->ccb_h.target_lun; 1530229997Sken /* XXX KDM should this be the tag_id? */ 1531229997Sken io->taskio.tag_num = inot->seq_id; 1532229997Sken 1533229997Sken status = inot->ccb_h.status & CAM_STATUS_MASK; 1534229997Sken switch (status) { 1535229997Sken case CAM_SCSI_BUS_RESET: 1536229997Sken io->taskio.task_action = CTL_TASK_BUS_RESET; 1537229997Sken break; 1538229997Sken case CAM_BDR_SENT: 1539229997Sken io->taskio.task_action = CTL_TASK_TARGET_RESET; 1540229997Sken break; 1541229997Sken case CAM_MESSAGE_RECV: 1542229997Sken switch (inot->arg) { 1543229997Sken case MSG_ABORT_TASK_SET: 1544229997Sken /* 1545229997Sken * XXX KDM this isn't currently 1546229997Sken * supported by CTL. It ends up 1547229997Sken * being a no-op. 1548229997Sken */ 1549229997Sken io->taskio.task_action = 1550229997Sken CTL_TASK_ABORT_TASK_SET; 1551229997Sken break; 1552229997Sken case MSG_TARGET_RESET: 1553229997Sken io->taskio.task_action = 1554229997Sken CTL_TASK_TARGET_RESET; 1555229997Sken break; 1556229997Sken case MSG_ABORT_TASK: 1557229997Sken io->taskio.task_action = 1558229997Sken CTL_TASK_ABORT_TASK; 1559229997Sken break; 1560229997Sken case MSG_LOGICAL_UNIT_RESET: 1561229997Sken io->taskio.task_action = 1562229997Sken CTL_TASK_LUN_RESET; 1563229997Sken break; 1564229997Sken case MSG_CLEAR_TASK_SET: 1565229997Sken /* 1566229997Sken * XXX KDM this isn't currently 1567229997Sken * supported by CTL. It ends up 1568229997Sken * being a no-op. 1569229997Sken */ 1570229997Sken io->taskio.task_action = 1571229997Sken CTL_TASK_CLEAR_TASK_SET; 1572229997Sken break; 1573229997Sken case MSG_CLEAR_ACA: 1574229997Sken io->taskio.task_action = 1575229997Sken CTL_TASK_CLEAR_ACA; 1576229997Sken break; 1577229997Sken case MSG_NOOP: 1578229997Sken send_ctl_io = 0; 1579229997Sken break; 1580229997Sken default: 1581229997Sken xpt_print(periph->path, "%s: " 1582229997Sken "unsupported message 0x%x\n", 1583229997Sken __func__, inot->arg); 1584229997Sken send_ctl_io = 0; 1585229997Sken break; 1586229997Sken } 1587229997Sken break; 1588229997Sken case CAM_REQ_ABORTED: 1589229997Sken /* 1590229997Sken * This request was sent back by the driver. 1591229997Sken * XXX KDM what do we do here? 1592229997Sken */ 1593229997Sken send_ctl_io = 0; 1594229997Sken break; 1595237601Sken case CAM_REQ_INVALID: 1596237601Sken case CAM_PROVIDE_FAIL: 1597229997Sken default: 1598237601Sken /* 1599237601Sken * We should only get here if we're talking 1600237601Sken * to a talking to a SIM that is target 1601237601Sken * capable but supports the old API. In 1602237601Sken * that case, we need to just free the CCB. 1603237601Sken * If we actually send a notify acknowledge, 1604237601Sken * it will send that back with an error as 1605237601Sken * well. 1606237601Sken */ 1607237601Sken 1608237601Sken if ((status != CAM_REQ_INVALID) 1609237601Sken && (status != CAM_PROVIDE_FAIL)) 1610237601Sken xpt_print(periph->path, "%s: " 1611237601Sken "unsupported CAM status " 1612237601Sken "0x%x\n", __func__, status); 1613237601Sken 1614237601Sken ctl_free_io(io); 1615237601Sken ctlfe_free_ccb(periph, done_ccb); 1616237601Sken 1617237601Sken return; 1618229997Sken } 1619229997Sken if (send_ctl_io != 0) { 1620229997Sken ctl_queue(io); 1621229997Sken } else { 1622229997Sken ctl_free_io(io); 1623229997Sken done_ccb->ccb_h.status = CAM_REQ_INPROG; 1624229997Sken done_ccb->ccb_h.func_code = 1625229997Sken XPT_NOTIFY_ACKNOWLEDGE; 1626229997Sken xpt_action(done_ccb); 1627229997Sken } 1628229997Sken } else { 1629229997Sken xpt_print(periph->path, "%s: could not allocate " 1630229997Sken "ctl_io for immediate notify!\n", __func__); 1631229997Sken /* requeue this to the adapter */ 1632229997Sken done_ccb->ccb_h.status = CAM_REQ_INPROG; 1633229997Sken done_ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE; 1634229997Sken xpt_action(done_ccb); 1635229997Sken } 1636229997Sken 1637229997Sken if (frozen != 0) { 1638229997Sken cam_release_devq(periph->path, 1639229997Sken /*relsim_flags*/ 0, 1640229997Sken /*opening reduction*/ 0, 1641229997Sken /*timeout*/ 0, 1642229997Sken /*getcount_only*/ 0); 1643229997Sken } 1644229997Sken break; 1645229997Sken } 1646229997Sken case XPT_NOTIFY_ACKNOWLEDGE: 1647229997Sken /* 1648229997Sken * Queue this back down to the SIM as an immediate notify. 1649229997Sken */ 1650229997Sken done_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY; 1651229997Sken xpt_action(done_ccb); 1652229997Sken softc->inots_sent++; 1653229997Sken break; 1654229997Sken case XPT_ABORT: 1655229997Sken /* 1656229997Sken * XPT_ABORT is an immediate CCB, we shouldn't get here. 1657229997Sken */ 1658229997Sken panic("%s: XPT_ABORT CCB returned!", __func__); 1659229997Sken break; 1660229997Sken case XPT_SET_SIM_KNOB: 1661229997Sken case XPT_GET_SIM_KNOB: 1662229997Sken break; 1663229997Sken default: 1664229997Sken panic("%s: unexpected CCB type %#x", __func__, 1665229997Sken done_ccb->ccb_h.func_code); 1666229997Sken break; 1667229997Sken } 1668229997Sken} 1669229997Sken 1670229997Skenstatic void 1671229997Skenctlfe_onoffline(void *arg, int online) 1672229997Sken{ 1673229997Sken struct ctlfe_softc *bus_softc; 1674229997Sken union ccb *ccb; 1675229997Sken cam_status status; 1676229997Sken struct cam_path *path; 1677229997Sken struct cam_sim *sim; 1678229997Sken int set_wwnn; 1679229997Sken 1680229997Sken bus_softc = (struct ctlfe_softc *)arg; 1681229997Sken 1682229997Sken set_wwnn = 0; 1683229997Sken 1684244052Sken sim = bus_softc->sim; 1685244052Sken 1686245228Sken mtx_assert(sim->mtx, MA_OWNED); 1687245228Sken 1688229997Sken status = xpt_create_path(&path, /*periph*/ NULL, bus_softc->path_id, 1689229997Sken CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 1690229997Sken if (status != CAM_REQ_CMP) { 1691229997Sken printf("%s: unable to create path!\n", __func__); 1692229997Sken return; 1693229997Sken } 1694245228Sken ccb = (union ccb *)malloc(sizeof(*ccb), M_TEMP, M_NOWAIT | M_ZERO); 1695245228Sken if (ccb == NULL) { 1696245228Sken printf("%s: unable to malloc CCB!\n", __func__); 1697245228Sken xpt_free_path(path); 1698245228Sken return; 1699245228Sken } 1700242174Smav xpt_setup_ccb(&ccb->ccb_h, path, CAM_PRIORITY_NONE); 1701229997Sken 1702229997Sken /* 1703229997Sken * Copan WWN format: 1704229997Sken * 1705229997Sken * Bits 63-60: 0x5 NAA, IEEE registered name 1706229997Sken * Bits 59-36: 0x000ED5 IEEE Company name assigned to Copan 1707229997Sken * Bits 35-12: Copan SSN (Sequential Serial Number) 1708229997Sken * Bits 11-8: Type of port: 1709229997Sken * 1 == N-Port 1710229997Sken * 2 == F-Port 1711229997Sken * 3 == NL-Port 1712229997Sken * Bits 7-0: 0 == Node Name, >0 == Port Number 1713229997Sken */ 1714229997Sken 1715229997Sken if (online != 0) { 1716229997Sken 1717229997Sken ccb->ccb_h.func_code = XPT_GET_SIM_KNOB; 1718229997Sken 1719229997Sken 1720229997Sken xpt_action(ccb); 1721229997Sken 1722229997Sken 1723229997Sken if ((ccb->knob.xport_specific.valid & KNOB_VALID_ADDRESS) != 0){ 1724229997Sken#ifdef RANDOM_WWNN 1725229997Sken uint64_t random_bits; 1726229997Sken#endif 1727229997Sken 1728229997Sken printf("%s: %s current WWNN %#jx\n", __func__, 1729229997Sken bus_softc->port_name, 1730229997Sken ccb->knob.xport_specific.fc.wwnn); 1731229997Sken printf("%s: %s current WWPN %#jx\n", __func__, 1732229997Sken bus_softc->port_name, 1733229997Sken ccb->knob.xport_specific.fc.wwpn); 1734229997Sken 1735229997Sken#ifdef RANDOM_WWNN 1736229997Sken arc4rand(&random_bits, sizeof(random_bits), 0); 1737229997Sken#endif 1738229997Sken 1739229997Sken /* 1740229997Sken * XXX KDM this is a bit of a kludge for now. We 1741229997Sken * take the current WWNN/WWPN from the card, and 1742229997Sken * replace the company identifier and the NL-Port 1743229997Sken * indicator and the port number (for the WWPN). 1744229997Sken * This should be replaced later with ddb_GetWWNN, 1745229997Sken * or possibly a more centralized scheme. (It 1746229997Sken * would be nice to have the WWNN/WWPN for each 1747229997Sken * port stored in the ctl_frontend structure.) 1748229997Sken */ 1749229997Sken#ifdef RANDOM_WWNN 1750229997Sken ccb->knob.xport_specific.fc.wwnn = 1751229997Sken (random_bits & 1752229997Sken 0x0000000fffffff00ULL) | 1753229997Sken /* Company ID */ 0x5000ED5000000000ULL | 1754229997Sken /* NL-Port */ 0x0300; 1755229997Sken ccb->knob.xport_specific.fc.wwpn = 1756229997Sken (random_bits & 1757229997Sken 0x0000000fffffff00ULL) | 1758229997Sken /* Company ID */ 0x5000ED5000000000ULL | 1759229997Sken /* NL-Port */ 0x3000 | 1760229997Sken /* Port Num */ (bus_softc->fe.targ_port & 0xff); 1761229997Sken 1762229997Sken /* 1763229997Sken * This is a bit of an API break/reversal, but if 1764229997Sken * we're doing the random WWNN that's a little 1765229997Sken * different anyway. So record what we're actually 1766229997Sken * using with the frontend code so it's reported 1767229997Sken * accurately. 1768229997Sken */ 1769229997Sken bus_softc->fe.wwnn = 1770229997Sken ccb->knob.xport_specific.fc.wwnn; 1771229997Sken bus_softc->fe.wwpn = 1772229997Sken ccb->knob.xport_specific.fc.wwpn; 1773229997Sken set_wwnn = 1; 1774229997Sken#else /* RANDOM_WWNN */ 1775229997Sken /* 1776229997Sken * If the user has specified a WWNN/WWPN, send them 1777229997Sken * down to the SIM. Otherwise, record what the SIM 1778229997Sken * has reported. 1779229997Sken */ 1780229997Sken if ((bus_softc->fe.wwnn != 0) 1781229997Sken && (bus_softc->fe.wwpn != 0)) { 1782229997Sken ccb->knob.xport_specific.fc.wwnn = 1783229997Sken bus_softc->fe.wwnn; 1784229997Sken ccb->knob.xport_specific.fc.wwpn = 1785229997Sken bus_softc->fe.wwpn; 1786229997Sken set_wwnn = 1; 1787229997Sken } else { 1788229997Sken bus_softc->fe.wwnn = 1789229997Sken ccb->knob.xport_specific.fc.wwnn; 1790229997Sken bus_softc->fe.wwpn = 1791229997Sken ccb->knob.xport_specific.fc.wwpn; 1792229997Sken } 1793229997Sken#endif /* RANDOM_WWNN */ 1794229997Sken 1795229997Sken 1796229997Sken if (set_wwnn != 0) { 1797229997Sken printf("%s: %s new WWNN %#jx\n", __func__, 1798229997Sken bus_softc->port_name, 1799229997Sken ccb->knob.xport_specific.fc.wwnn); 1800229997Sken printf("%s: %s new WWPN %#jx\n", __func__, 1801229997Sken bus_softc->port_name, 1802229997Sken ccb->knob.xport_specific.fc.wwpn); 1803229997Sken } 1804229997Sken } else { 1805229997Sken printf("%s: %s has no valid WWNN/WWPN\n", __func__, 1806229997Sken bus_softc->port_name); 1807229997Sken } 1808229997Sken } 1809229997Sken ccb->ccb_h.func_code = XPT_SET_SIM_KNOB; 1810229997Sken ccb->knob.xport_specific.valid = KNOB_VALID_ROLE; 1811229997Sken if (set_wwnn != 0) 1812229997Sken ccb->knob.xport_specific.valid |= KNOB_VALID_ADDRESS; 1813229997Sken 1814229997Sken if (online != 0) 1815229997Sken ccb->knob.xport_specific.fc.role = KNOB_ROLE_TARGET; 1816229997Sken else 1817229997Sken ccb->knob.xport_specific.fc.role = KNOB_ROLE_NONE; 1818229997Sken 1819229997Sken xpt_action(ccb); 1820229997Sken 1821229997Sken if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1822229997Sken printf("%s: SIM %s (path id %d) target %s failed with " 1823229997Sken "status %#x\n", 1824229997Sken __func__, bus_softc->port_name, bus_softc->path_id, 1825229997Sken (online != 0) ? "enable" : "disable", 1826229997Sken ccb->ccb_h.status); 1827229997Sken } else { 1828229997Sken printf("%s: SIM %s (path id %d) target %s succeeded\n", 1829229997Sken __func__, bus_softc->port_name, bus_softc->path_id, 1830229997Sken (online != 0) ? "enable" : "disable"); 1831229997Sken } 1832229997Sken 1833229997Sken xpt_free_path(path); 1834229997Sken 1835244016Sken free(ccb, M_TEMP); 1836244016Sken 1837229997Sken return; 1838229997Sken} 1839229997Sken 1840229997Skenstatic void 1841229997Skenctlfe_online(void *arg) 1842229997Sken{ 1843245228Sken struct ctlfe_softc *bus_softc; 1844245228Sken struct cam_path *path; 1845245228Sken cam_status status; 1846245228Sken struct ctlfe_lun_softc *lun_softc; 1847245228Sken struct cam_sim *sim; 1848245228Sken 1849245228Sken bus_softc = (struct ctlfe_softc *)arg; 1850245228Sken sim = bus_softc->sim; 1851245228Sken 1852245228Sken CAM_SIM_LOCK(sim); 1853245228Sken 1854245228Sken /* 1855245228Sken * Create the wildcard LUN before bringing the port online. 1856245228Sken */ 1857245228Sken status = xpt_create_path(&path, /*periph*/ NULL, 1858245228Sken bus_softc->path_id, CAM_TARGET_WILDCARD, 1859245228Sken CAM_LUN_WILDCARD); 1860245228Sken if (status != CAM_REQ_CMP) { 1861245228Sken printf("%s: unable to create path for wildcard periph\n", 1862245228Sken __func__); 1863245228Sken CAM_SIM_UNLOCK(sim); 1864245228Sken return; 1865245228Sken } 1866245228Sken 1867245228Sken lun_softc = malloc(sizeof(*lun_softc), M_CTLFE, 1868245228Sken M_NOWAIT | M_ZERO); 1869245228Sken if (lun_softc == NULL) { 1870245228Sken xpt_print(path, "%s: unable to allocate softc for " 1871245228Sken "wildcard periph\n", __func__); 1872245228Sken xpt_free_path(path); 1873245228Sken CAM_SIM_UNLOCK(sim); 1874245228Sken return; 1875245228Sken } 1876245228Sken 1877245228Sken lun_softc->parent_softc = bus_softc; 1878245228Sken lun_softc->flags |= CTLFE_LUN_WILDCARD; 1879245228Sken 1880245228Sken STAILQ_INSERT_TAIL(&bus_softc->lun_softc_list, lun_softc, links); 1881245228Sken 1882245228Sken 1883245228Sken status = cam_periph_alloc(ctlferegister, 1884245228Sken ctlfeoninvalidate, 1885245228Sken ctlfecleanup, 1886245228Sken ctlfestart, 1887245228Sken "ctl", 1888245228Sken CAM_PERIPH_BIO, 1889245228Sken path, 1890245228Sken ctlfeasync, 1891245228Sken 0, 1892245228Sken lun_softc); 1893245228Sken 1894245228Sken if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1895245228Sken const struct cam_status_entry *entry; 1896245228Sken 1897245228Sken entry = cam_fetch_status_entry(status); 1898245228Sken 1899245228Sken printf("%s: CAM error %s (%#x) returned from " 1900245228Sken "cam_periph_alloc()\n", __func__, (entry != NULL) ? 1901245228Sken entry->status_text : "Unknown", status); 1902245228Sken } 1903245228Sken 1904245228Sken xpt_free_path(path); 1905245228Sken 1906229997Sken ctlfe_onoffline(arg, /*online*/ 1); 1907245228Sken 1908245228Sken CAM_SIM_UNLOCK(sim); 1909229997Sken} 1910229997Sken 1911229997Skenstatic void 1912229997Skenctlfe_offline(void *arg) 1913229997Sken{ 1914245228Sken struct ctlfe_softc *bus_softc; 1915245228Sken struct cam_path *path; 1916245228Sken cam_status status; 1917245228Sken struct cam_periph *periph; 1918245228Sken struct cam_sim *sim; 1919245228Sken 1920245228Sken bus_softc = (struct ctlfe_softc *)arg; 1921245228Sken sim = bus_softc->sim; 1922245228Sken 1923245228Sken CAM_SIM_LOCK(sim); 1924245228Sken 1925229997Sken ctlfe_onoffline(arg, /*online*/ 0); 1926245228Sken 1927245228Sken /* 1928245228Sken * Disable the wildcard LUN for this port now that we have taken 1929245228Sken * the port offline. 1930245228Sken */ 1931245228Sken status = xpt_create_path(&path, /*periph*/ NULL, 1932245228Sken bus_softc->path_id, CAM_TARGET_WILDCARD, 1933245228Sken CAM_LUN_WILDCARD); 1934245228Sken if (status != CAM_REQ_CMP) { 1935245228Sken CAM_SIM_UNLOCK(sim); 1936245228Sken printf("%s: unable to create path for wildcard periph\n", 1937245228Sken __func__); 1938245228Sken return; 1939245228Sken } 1940245228Sken 1941245228Sken 1942245228Sken if ((periph = cam_periph_find(path, "ctl")) != NULL) 1943245228Sken cam_periph_invalidate(periph); 1944245228Sken 1945245228Sken xpt_free_path(path); 1946245228Sken 1947245228Sken CAM_SIM_UNLOCK(sim); 1948229997Sken} 1949229997Sken 1950229997Skenstatic int 1951229997Skenctlfe_targ_enable(void *arg, struct ctl_id targ_id) 1952229997Sken{ 1953229997Sken return (0); 1954229997Sken} 1955229997Sken 1956229997Skenstatic int 1957229997Skenctlfe_targ_disable(void *arg, struct ctl_id targ_id) 1958229997Sken{ 1959229997Sken return (0); 1960229997Sken} 1961229997Sken 1962229997Sken/* 1963229997Sken * This will get called to enable a LUN on every bus that is attached to 1964229997Sken * CTL. So we only need to create a path/periph for this particular bus. 1965229997Sken */ 1966229997Skenstatic int 1967229997Skenctlfe_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1968229997Sken{ 1969229997Sken struct ctlfe_softc *bus_softc; 1970229997Sken struct ctlfe_lun_softc *softc; 1971229997Sken struct cam_path *path; 1972229997Sken struct cam_periph *periph; 1973229997Sken struct cam_sim *sim; 1974229997Sken cam_status status; 1975229997Sken 1976229997Sken bus_softc = (struct ctlfe_softc *)arg; 1977244052Sken sim = bus_softc->sim; 1978229997Sken 1979245228Sken status = xpt_create_path_unlocked(&path, /*periph*/ NULL, 1980245228Sken bus_softc->path_id, 1981245228Sken targ_id.id, lun_id); 1982229997Sken /* XXX KDM need some way to return status to CTL here? */ 1983229997Sken if (status != CAM_REQ_CMP) { 1984229997Sken printf("%s: could not create path, status %#x\n", __func__, 1985229997Sken status); 1986229997Sken return (1); 1987229997Sken } 1988229997Sken 1989229997Sken softc = malloc(sizeof(*softc), M_CTLFE, M_WAITOK | M_ZERO); 1990244052Sken CAM_SIM_LOCK(sim); 1991229997Sken periph = cam_periph_find(path, "ctl"); 1992229997Sken if (periph != NULL) { 1993229997Sken /* We've already got a periph, no need to alloc a new one. */ 1994229997Sken xpt_free_path(path); 1995229997Sken free(softc, M_CTLFE); 1996244052Sken CAM_SIM_UNLOCK(sim); 1997229997Sken return (0); 1998229997Sken } 1999229997Sken 2000229997Sken softc->parent_softc = bus_softc; 2001229997Sken STAILQ_INSERT_TAIL(&bus_softc->lun_softc_list, softc, links); 2002229997Sken 2003229997Sken status = cam_periph_alloc(ctlferegister, 2004229997Sken ctlfeoninvalidate, 2005229997Sken ctlfecleanup, 2006229997Sken ctlfestart, 2007229997Sken "ctl", 2008229997Sken CAM_PERIPH_BIO, 2009229997Sken path, 2010229997Sken ctlfeasync, 2011229997Sken 0, 2012229997Sken softc); 2013229997Sken 2014244016Sken xpt_free_path(path); 2015244016Sken 2016244052Sken CAM_SIM_UNLOCK(sim); 2017229997Sken 2018229997Sken return (0); 2019229997Sken} 2020229997Sken 2021229997Sken/* 2022245228Sken * This will get called when the user removes a LUN to disable that LUN 2023245228Sken * on every bus that is attached to CTL. 2024229997Sken */ 2025229997Skenstatic int 2026229997Skenctlfe_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 2027229997Sken{ 2028229997Sken struct ctlfe_softc *softc; 2029229997Sken struct ctlfe_lun_softc *lun_softc; 2030245228Sken struct cam_sim *sim; 2031229997Sken 2032229997Sken softc = (struct ctlfe_softc *)arg; 2033245228Sken sim = softc->sim; 2034229997Sken 2035245228Sken CAM_SIM_LOCK(sim); 2036229997Sken STAILQ_FOREACH(lun_softc, &softc->lun_softc_list, links) { 2037229997Sken struct cam_path *path; 2038229997Sken 2039229997Sken path = lun_softc->periph->path; 2040229997Sken 2041229997Sken if ((xpt_path_target_id(path) == targ_id.id) 2042229997Sken && (xpt_path_lun_id(path) == lun_id)) { 2043229997Sken break; 2044229997Sken } 2045229997Sken } 2046229997Sken if (lun_softc == NULL) { 2047245228Sken CAM_SIM_UNLOCK(sim); 2048229997Sken printf("%s: can't find target %d lun %d\n", __func__, 2049229997Sken targ_id.id, lun_id); 2050229997Sken return (1); 2051229997Sken } 2052229997Sken 2053229997Sken cam_periph_invalidate(lun_softc->periph); 2054229997Sken 2055245228Sken CAM_SIM_UNLOCK(sim); 2056229997Sken 2057229997Sken return (0); 2058229997Sken} 2059229997Sken 2060229997Skenstatic void 2061229997Skenctlfe_dump_sim(struct cam_sim *sim) 2062229997Sken{ 2063229997Sken 2064229997Sken printf("%s%d: max tagged openings: %d, max dev openings: %d\n", 2065229997Sken sim->sim_name, sim->unit_number, 2066229997Sken sim->max_tagged_dev_openings, sim->max_dev_openings); 2067229997Sken printf("%s%d: max_ccbs: %u, ccb_count: %u\n", 2068229997Sken sim->sim_name, sim->unit_number, 2069229997Sken sim->max_ccbs, sim->ccb_count); 2070229997Sken printf("%s%d: ccb_freeq is %sempty\n", 2071229997Sken sim->sim_name, sim->unit_number, 2072229997Sken (SLIST_FIRST(&sim->ccb_freeq) == NULL) ? "" : "NOT "); 2073229997Sken printf("\n"); 2074229997Sken} 2075229997Sken 2076229997Sken/* 2077229997Sken * Assumes that the SIM lock is held. 2078229997Sken */ 2079229997Skenstatic void 2080229997Skenctlfe_dump_queue(struct ctlfe_lun_softc *softc) 2081229997Sken{ 2082229997Sken struct ccb_hdr *hdr; 2083229997Sken struct cam_periph *periph; 2084229997Sken int num_items; 2085229997Sken 2086229997Sken periph = softc->periph; 2087229997Sken num_items = 0; 2088229997Sken 2089229997Sken TAILQ_FOREACH(hdr, &softc->work_queue, periph_links.tqe) { 2090229997Sken union ctl_io *io; 2091229997Sken 2092229997Sken io = hdr->io_ptr; 2093229997Sken 2094229997Sken num_items++; 2095229997Sken 2096229997Sken /* 2097229997Sken * This can happen when we get an ATIO but can't allocate 2098229997Sken * a ctl_io. See the XPT_ACCEPT_TARGET_IO case in ctlfedone(). 2099229997Sken */ 2100229997Sken if (io == NULL) { 2101229997Sken struct ccb_scsiio *csio; 2102229997Sken 2103229997Sken csio = (struct ccb_scsiio *)hdr; 2104229997Sken 2105229997Sken xpt_print(periph->path, "CCB %#x ctl_io allocation " 2106229997Sken "failed\n", csio->tag_id); 2107229997Sken continue; 2108229997Sken } 2109229997Sken 2110229997Sken /* 2111229997Sken * Only regular SCSI I/O is put on the work 2112229997Sken * queue, so we can print sense here. There may be no 2113229997Sken * sense if it's no the queue for a DMA, but this serves to 2114229997Sken * print out the CCB as well. 2115229997Sken * 2116229997Sken * XXX KDM switch this over to scsi_sense_print() when 2117229997Sken * CTL is merged in with CAM. 2118229997Sken */ 2119229997Sken ctl_io_error_print(io, NULL); 2120229997Sken 2121229997Sken /* 2122229997Sken * We're sending status back to the 2123229997Sken * initiator, so we're on the queue waiting 2124229997Sken * for a CTIO to do that. 2125229997Sken */ 2126229997Sken if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) 2127229997Sken continue; 2128229997Sken 2129229997Sken /* 2130229997Sken * Otherwise, we're on the queue waiting to 2131229997Sken * do a data transfer. 2132229997Sken */ 2133229997Sken xpt_print(periph->path, "Total %u, Current %u, Resid %u\n", 2134229997Sken io->scsiio.kern_total_len, io->scsiio.kern_data_len, 2135229997Sken io->scsiio.kern_data_resid); 2136229997Sken } 2137229997Sken 2138229997Sken xpt_print(periph->path, "%d requests total waiting for CCBs\n", 2139229997Sken num_items); 2140250460Seadler xpt_print(periph->path, "%ju CCBs outstanding (%ju allocated, %ju " 2141229997Sken "freed)\n", (uintmax_t)(softc->ccbs_alloced - 2142229997Sken softc->ccbs_freed), (uintmax_t)softc->ccbs_alloced, 2143229997Sken (uintmax_t)softc->ccbs_freed); 2144229997Sken xpt_print(periph->path, "%ju CTIOs outstanding (%ju sent, %ju " 2145229997Sken "returned\n", (uintmax_t)(softc->ctios_sent - 2146229997Sken softc->ctios_returned), softc->ctios_sent, 2147229997Sken softc->ctios_returned); 2148229997Sken} 2149229997Sken 2150229997Sken/* 2151229997Sken * This function is called when we fail to get a CCB for a DMA or status return 2152229997Sken * to the initiator within the specified time period. 2153229997Sken * 2154229997Sken * The callout code should insure that we hold the sim mutex here. 2155229997Sken */ 2156229997Skenstatic void 2157229997Skenctlfe_dma_timeout(void *arg) 2158229997Sken{ 2159229997Sken struct ctlfe_lun_softc *softc; 2160229997Sken struct cam_periph *periph; 2161229997Sken struct cam_sim *sim; 2162229997Sken int num_queued; 2163229997Sken 2164229997Sken softc = (struct ctlfe_lun_softc *)arg; 2165229997Sken periph = softc->periph; 2166229997Sken sim = xpt_path_sim(periph->path); 2167229997Sken num_queued = 0; 2168229997Sken 2169229997Sken /* 2170229997Sken * Nothing to do... 2171229997Sken */ 2172229997Sken if (TAILQ_FIRST(&softc->work_queue) == NULL) { 2173229997Sken xpt_print(periph->path, "TIMEOUT triggered after %d " 2174229997Sken "seconds, but nothing on work queue??\n", 2175229997Sken CTLFE_DMA_TIMEOUT); 2176229997Sken return; 2177229997Sken } 2178229997Sken 2179229997Sken xpt_print(periph->path, "TIMEOUT (%d seconds) waiting for DMA to " 2180229997Sken "start\n", CTLFE_DMA_TIMEOUT); 2181229997Sken 2182229997Sken ctlfe_dump_queue(softc); 2183229997Sken 2184229997Sken ctlfe_dump_sim(sim); 2185229997Sken 2186229997Sken xpt_print(periph->path, "calling xpt_schedule() to attempt to " 2187229997Sken "unstick our queue\n"); 2188229997Sken 2189229997Sken xpt_schedule(periph, /*priority*/ 1); 2190229997Sken 2191229997Sken xpt_print(periph->path, "xpt_schedule() call complete\n"); 2192229997Sken} 2193229997Sken 2194229997Sken/* 2195229997Sken * Datamove/done routine called by CTL. Put ourselves on the queue to 2196229997Sken * receive a CCB from CAM so we can queue the continue I/O request down 2197229997Sken * to the adapter. 2198229997Sken */ 2199229997Skenstatic void 2200229997Skenctlfe_datamove_done(union ctl_io *io) 2201229997Sken{ 2202229997Sken union ccb *ccb; 2203229997Sken struct cam_sim *sim; 2204229997Sken struct cam_periph *periph; 2205229997Sken struct ctlfe_lun_softc *softc; 2206229997Sken 2207229997Sken ccb = io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2208229997Sken 2209229997Sken sim = xpt_path_sim(ccb->ccb_h.path); 2210229997Sken 2211245228Sken CAM_SIM_LOCK(sim); 2212229997Sken 2213229997Sken periph = xpt_path_periph(ccb->ccb_h.path); 2214229997Sken 2215229997Sken softc = (struct ctlfe_lun_softc *)periph->softc; 2216229997Sken 2217229997Sken if (io->io_hdr.io_type == CTL_IO_TASK) { 2218229997Sken /* 2219229997Sken * Task management commands don't require any further 2220229997Sken * communication back to the adapter. Requeue the CCB 2221229997Sken * to the adapter, and free the CTL I/O. 2222229997Sken */ 2223229997Sken xpt_print(ccb->ccb_h.path, "%s: returning task I/O " 2224229997Sken "tag %#x seq %#x\n", __func__, 2225229997Sken ccb->cin1.tag_id, ccb->cin1.seq_id); 2226229997Sken /* 2227229997Sken * Send the notify acknowledge down to the SIM, to let it 2228229997Sken * know we processed the task management command. 2229229997Sken */ 2230229997Sken ccb->ccb_h.status = CAM_REQ_INPROG; 2231229997Sken ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE; 2232229997Sken xpt_action(ccb); 2233229997Sken ctl_free_io(io); 2234229997Sken } else { 2235229997Sken if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) 2236229997Sken io->io_hdr.flags |= CTL_FLAG_STATUS_QUEUED; 2237229997Sken else 2238229997Sken io->io_hdr.flags |= CTL_FLAG_DMA_QUEUED; 2239229997Sken 2240229997Sken TAILQ_INSERT_TAIL(&softc->work_queue, &ccb->ccb_h, 2241229997Sken periph_links.tqe); 2242229997Sken 2243229997Sken /* 2244229997Sken * Reset the timeout for our latest active DMA. 2245229997Sken */ 2246229997Sken callout_reset(&softc->dma_callout, 2247229997Sken CTLFE_DMA_TIMEOUT * hz, 2248229997Sken ctlfe_dma_timeout, softc); 2249229997Sken /* 2250229997Sken * Ask for the CAM transport layer to send us a CCB to do 2251229997Sken * the DMA or send status, unless ctlfe_dma_enabled is set 2252229997Sken * to 0. 2253229997Sken */ 2254229997Sken if (ctlfe_dma_enabled != 0) 2255229997Sken xpt_schedule(periph, /*priority*/ 1); 2256229997Sken } 2257229997Sken 2258245228Sken CAM_SIM_UNLOCK(sim); 2259229997Sken} 2260229997Sken 2261229997Skenstatic void 2262229997Skenctlfe_dump(void) 2263229997Sken{ 2264229997Sken struct ctlfe_softc *bus_softc; 2265229997Sken 2266229997Sken STAILQ_FOREACH(bus_softc, &ctlfe_softc_list, links) { 2267229997Sken struct ctlfe_lun_softc *lun_softc; 2268229997Sken 2269229997Sken ctlfe_dump_sim(bus_softc->sim); 2270229997Sken 2271229997Sken STAILQ_FOREACH(lun_softc, &bus_softc->lun_softc_list, links) { 2272229997Sken ctlfe_dump_queue(lun_softc); 2273229997Sken } 2274229997Sken } 2275229997Sken} 2276