scsi_ctl.c revision 272734
1359575Sdim/*- 2359575Sdim * Copyright (c) 2008, 2009 Silicon Graphics International Corp. 3359575Sdim * All rights reserved. 4359575Sdim * 5359575Sdim * Redistribution and use in source and binary forms, with or without 6359575Sdim * modification, are permitted provided that the following conditions 7359575Sdim * are met: 8359575Sdim * 1. Redistributions of source code must retain the above copyright 9359575Sdim * notice, this list of conditions, and the following disclaimer, 10359575Sdim * without modification. 11359575Sdim * 2. Redistributions in binary form must reproduce at minimum a disclaimer 12359575Sdim * substantially similar to the "NO WARRANTY" disclaimer below 13359575Sdim * ("Disclaimer") and any redistribution must be conditioned upon 14359575Sdim * including a substantially similar Disclaimer requirement for further 15359575Sdim * binary redistribution. 16359575Sdim * 17359575Sdim * NO WARRANTY 18359575Sdim * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19359575Sdim * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20359575Sdim * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 21359575Sdim * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22359575Sdim * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23359575Sdim * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24359575Sdim * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25359575Sdim * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 26359575Sdim * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 27359575Sdim * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28359575Sdim * POSSIBILITY OF SUCH DAMAGES. 29359575Sdim * 30359575Sdim * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/scsi_ctl.c#4 $ 31359575Sdim */ 32359575Sdim/* 33359575Sdim * Peripheral driver interface between CAM and CTL (CAM Target Layer). 34359575Sdim * 35359575Sdim * Author: Ken Merry <ken@FreeBSD.org> 36359575Sdim */ 37359575Sdim 38359575Sdim#include <sys/cdefs.h> 39359575Sdim__FBSDID("$FreeBSD: head/sys/cam/ctl/scsi_ctl.c 272734 2014-10-08 07:48:36Z mav $"); 40359575Sdim 41359575Sdim#include <sys/param.h> 42359575Sdim#include <sys/queue.h> 43359575Sdim#include <sys/systm.h> 44359575Sdim#include <sys/kernel.h> 45359575Sdim#include <sys/lock.h> 46359575Sdim#include <sys/mutex.h> 47359575Sdim#include <sys/condvar.h> 48359575Sdim#include <sys/malloc.h> 49359575Sdim#include <sys/bus.h> 50359575Sdim#include <sys/endian.h> 51359575Sdim#include <sys/sbuf.h> 52359575Sdim#include <sys/sysctl.h> 53359575Sdim#include <sys/types.h> 54359575Sdim#include <sys/systm.h> 55359575Sdim#include <machine/bus.h> 56359575Sdim 57359575Sdim#include <cam/cam.h> 58359575Sdim#include <cam/cam_ccb.h> 59359575Sdim#include <cam/cam_periph.h> 60359575Sdim#include <cam/cam_queue.h> 61359575Sdim#include <cam/cam_xpt_periph.h> 62359575Sdim#include <cam/cam_debug.h> 63359575Sdim#include <cam/cam_sim.h> 64359575Sdim#include <cam/cam_xpt.h> 65359575Sdim 66359575Sdim#include <cam/scsi/scsi_all.h> 67359575Sdim#include <cam/scsi/scsi_message.h> 68359575Sdim 69359575Sdim#include <cam/ctl/ctl_io.h> 70359575Sdim#include <cam/ctl/ctl.h> 71359575Sdim#include <cam/ctl/ctl_frontend.h> 72359575Sdim#include <cam/ctl/ctl_util.h> 73359575Sdim#include <cam/ctl/ctl_error.h> 74359575Sdim 75359575Sdimtypedef enum { 76359575Sdim CTLFE_CCB_DEFAULT = 0x00 77359575Sdim} ctlfe_ccb_types; 78359575Sdim 79359575Sdimstruct ctlfe_softc { 80359575Sdim struct ctl_port port; 81359575Sdim path_id_t path_id; 82359575Sdim u_int maxio; 83359575Sdim struct cam_sim *sim; 84359575Sdim char port_name[DEV_IDLEN]; 85359575Sdim struct mtx lun_softc_mtx; 86359575Sdim STAILQ_HEAD(, ctlfe_lun_softc) lun_softc_list; 87359575Sdim STAILQ_ENTRY(ctlfe_softc) links; 88359575Sdim}; 89359575Sdim 90359575SdimSTAILQ_HEAD(, ctlfe_softc) ctlfe_softc_list; 91359575Sdimstruct mtx ctlfe_list_mtx; 92359575Sdimstatic char ctlfe_mtx_desc[] = "ctlfelist"; 93359575Sdimstatic int ctlfe_dma_enabled = 1; 94359575Sdim#ifdef CTLFE_INIT_ENABLE 95359575Sdimstatic int ctlfe_max_targets = 1; 96359575Sdimstatic int ctlfe_num_targets = 0; 97359575Sdim#endif 98359575Sdim 99359575Sdimtypedef enum { 100359575Sdim CTLFE_LUN_NONE = 0x00, 101359575Sdim CTLFE_LUN_WILDCARD = 0x01 102359575Sdim} ctlfe_lun_flags; 103359575Sdim 104359575Sdimstruct ctlfe_lun_softc { 105359575Sdim struct ctlfe_softc *parent_softc; 106359575Sdim struct cam_periph *periph; 107359575Sdim ctlfe_lun_flags flags; 108359575Sdim struct callout dma_callout; 109359575Sdim uint64_t ccbs_alloced; 110359575Sdim uint64_t ccbs_freed; 111359575Sdim uint64_t ctios_sent; 112359575Sdim uint64_t ctios_returned; 113359575Sdim uint64_t atios_sent; 114359575Sdim uint64_t atios_returned; 115359575Sdim uint64_t inots_sent; 116359575Sdim uint64_t inots_returned; 117359575Sdim /* bus_dma_tag_t dma_tag; */ 118359575Sdim TAILQ_HEAD(, ccb_hdr) work_queue; 119359575Sdim STAILQ_ENTRY(ctlfe_lun_softc) links; 120359575Sdim}; 121359575Sdim 122359575Sdimtypedef enum { 123359575Sdim CTLFE_CMD_NONE = 0x00, 124359575Sdim CTLFE_CMD_PIECEWISE = 0x01 125359575Sdim} ctlfe_cmd_flags; 126359575Sdim 127359575Sdim/* 128359575Sdim * The size limit of this structure is CTL_PORT_PRIV_SIZE, from ctl_io.h. 129359575Sdim * Currently that is 600 bytes. 130359575Sdim */ 131359575Sdimstruct ctlfe_lun_cmd_info { 132359575Sdim int cur_transfer_index; 133359575Sdim size_t cur_transfer_off; 134359575Sdim ctlfe_cmd_flags flags; 135359575Sdim /* 136359575Sdim * XXX KDM struct bus_dma_segment is 8 bytes on i386, and 16 137359575Sdim * bytes on amd64. So with 32 elements, this is 256 bytes on 138359575Sdim * i386 and 512 bytes on amd64. 139359575Sdim */ 140359575Sdim#define CTLFE_MAX_SEGS 32 141359575Sdim bus_dma_segment_t cam_sglist[CTLFE_MAX_SEGS]; 142359575Sdim}; 143359575Sdim 144359575Sdim/* 145359575Sdim * When we register the adapter/bus, request that this many ctl_ios be 146359575Sdim * allocated. This should be the maximum supported by the adapter, but we 147359575Sdim * currently don't have a way to get that back from the path inquiry. 148359575Sdim * XXX KDM add that to the path inquiry. 149359575Sdim */ 150359575Sdim#define CTLFE_REQ_CTL_IO 4096 151359575Sdim/* 152359575Sdim * Number of Accept Target I/O CCBs to allocate and queue down to the 153359575Sdim * adapter per LUN. 154359575Sdim * XXX KDM should this be controlled by CTL? 155359575Sdim */ 156359575Sdim#define CTLFE_ATIO_PER_LUN 1024 157359575Sdim/* 158359575Sdim * Number of Immediate Notify CCBs (used for aborts, resets, etc.) to 159359575Sdim * allocate and queue down to the adapter per LUN. 160359575Sdim * XXX KDM should this be controlled by CTL? 161359575Sdim */ 162359575Sdim#define CTLFE_IN_PER_LUN 1024 163359575Sdim 164359575Sdim/* 165359575Sdim * Timeout (in seconds) on CTIO CCB allocation for doing a DMA or sending 166359575Sdim * status to the initiator. The SIM is expected to have its own timeouts, 167359575Sdim * so we're not putting this timeout around the CCB execution time. The 168359575Sdim * SIM should timeout and let us know if it has an issue. 169359575Sdim */ 170359575Sdim#define CTLFE_DMA_TIMEOUT 60 171359575Sdim 172359575Sdim/* 173359575Sdim * Turn this on to enable extra debugging prints. 174359575Sdim */ 175359575Sdim#if 0 176359575Sdim#define CTLFE_DEBUG 177359575Sdim#endif 178359575Sdim 179359575Sdim/* 180359575Sdim * Use randomly assigned WWNN/WWPN values. This is to work around an issue 181359575Sdim * in the FreeBSD initiator that makes it unable to rescan the target if 182359575Sdim * the target gets rebooted and the WWNN/WWPN stay the same. 183359575Sdim */ 184359575Sdim#if 0 185359575Sdim#define RANDOM_WWNN 186359575Sdim#endif 187359575Sdim 188359575SdimSYSCTL_INT(_kern_cam_ctl, OID_AUTO, dma_enabled, CTLFLAG_RW, 189359575Sdim &ctlfe_dma_enabled, 0, "DMA enabled"); 190359575SdimMALLOC_DEFINE(M_CTLFE, "CAM CTL FE", "CAM CTL FE interface"); 191359575Sdim 192359575Sdim#define ccb_type ppriv_field0 193359575Sdim/* This is only used in the ATIO */ 194359575Sdim#define io_ptr ppriv_ptr1 195359575Sdim 196359575Sdim/* This is only used in the CTIO */ 197359575Sdim#define ccb_atio ppriv_ptr1 198359575Sdim 199359575Sdimint ctlfeinitialize(void); 200359575Sdimvoid ctlfeshutdown(void); 201359575Sdimstatic periph_init_t ctlfeperiphinit; 202359575Sdimstatic void ctlfeasync(void *callback_arg, uint32_t code, 203359575Sdim struct cam_path *path, void *arg); 204359575Sdimstatic periph_ctor_t ctlferegister; 205359575Sdimstatic periph_oninv_t ctlfeoninvalidate; 206359575Sdimstatic periph_dtor_t ctlfecleanup; 207359575Sdimstatic periph_start_t ctlfestart; 208359575Sdimstatic void ctlfedone(struct cam_periph *periph, 209359575Sdim union ccb *done_ccb); 210359575Sdim 211359575Sdimstatic void ctlfe_onoffline(void *arg, int online); 212359575Sdimstatic void ctlfe_online(void *arg); 213359575Sdimstatic void ctlfe_offline(void *arg); 214359575Sdimstatic int ctlfe_lun_enable(void *arg, struct ctl_id targ_id, 215359575Sdim int lun_id); 216359575Sdimstatic int ctlfe_lun_disable(void *arg, struct ctl_id targ_id, 217359575Sdim int lun_id); 218359575Sdimstatic void ctlfe_dump_sim(struct cam_sim *sim); 219359575Sdimstatic void ctlfe_dump_queue(struct ctlfe_lun_softc *softc); 220359575Sdimstatic void ctlfe_dma_timeout(void *arg); 221359575Sdimstatic void ctlfe_datamove_done(union ctl_io *io); 222359575Sdimstatic void ctlfe_dump(void); 223359575Sdim 224359575Sdimstatic struct periph_driver ctlfe_driver = 225359575Sdim{ 226359575Sdim ctlfeperiphinit, "ctl", 227359575Sdim TAILQ_HEAD_INITIALIZER(ctlfe_driver.units), /*generation*/ 0 228359575Sdim}; 229359575Sdim 230359575Sdimstatic struct ctl_frontend ctlfe_frontend = 231359575Sdim{ 232359575Sdim .name = "camtarget", 233359575Sdim .init = ctlfeinitialize, 234359575Sdim .fe_dump = ctlfe_dump, 235359575Sdim .shutdown = ctlfeshutdown, 236359575Sdim}; 237359575SdimCTL_FRONTEND_DECLARE(ctlfe, ctlfe_frontend); 238359575Sdim 239359575Sdimextern struct ctl_softc *control_softc; 240359575Sdim 241359575Sdimvoid 242359575Sdimctlfeshutdown(void) 243359575Sdim{ 244359575Sdim return; 245359575Sdim} 246359575Sdim 247359575Sdimint 248359575Sdimctlfeinitialize(void) 249359575Sdim{ 250359575Sdim 251359575Sdim STAILQ_INIT(&ctlfe_softc_list); 252359575Sdim mtx_init(&ctlfe_list_mtx, ctlfe_mtx_desc, NULL, MTX_DEF); 253359575Sdim periphdriver_register(&ctlfe_driver); 254359575Sdim return (0); 255359575Sdim} 256359575Sdim 257359575Sdimvoid 258359575Sdimctlfeperiphinit(void) 259359575Sdim{ 260359575Sdim cam_status status; 261359575Sdim 262359575Sdim status = xpt_register_async(AC_PATH_REGISTERED | AC_PATH_DEREGISTERED | 263359575Sdim AC_CONTRACT, ctlfeasync, NULL, NULL); 264359575Sdim if (status != CAM_REQ_CMP) { 265359575Sdim printf("ctl: Failed to attach async callback due to CAM " 266359575Sdim "status 0x%x!\n", status); 267359575Sdim } 268359575Sdim} 269359575Sdim 270359575Sdimstatic void 271359575Sdimctlfeasync(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) 272359575Sdim{ 273359575Sdim 274359575Sdim#ifdef CTLFEDEBUG 275359575Sdim printf("%s: entered\n", __func__); 276359575Sdim#endif 277359575Sdim 278359575Sdim /* 279359575Sdim * When a new path gets registered, and it is capable of target 280359575Sdim * mode, go ahead and attach. Later on, we may need to be more 281359575Sdim * selective, but for now this will be sufficient. 282359575Sdim */ 283359575Sdim switch (code) { 284359575Sdim case AC_PATH_REGISTERED: { 285359575Sdim struct ctl_port *port; 286359575Sdim struct ctlfe_softc *bus_softc; 287359575Sdim struct ccb_pathinq *cpi; 288359575Sdim int retval; 289359575Sdim 290359575Sdim cpi = (struct ccb_pathinq *)arg; 291359575Sdim 292359575Sdim /* Don't attach if it doesn't support target mode */ 293359575Sdim if ((cpi->target_sprt & PIT_PROCESSOR) == 0) { 294359575Sdim#ifdef CTLFEDEBUG 295359575Sdim printf("%s: SIM %s%d doesn't support target mode\n", 296359575Sdim __func__, cpi->dev_name, cpi->unit_number); 297359575Sdim#endif 298359575Sdim break; 299359575Sdim } 300359575Sdim 301359575Sdim#ifdef CTLFE_INIT_ENABLE 302359575Sdim if (ctlfe_num_targets >= ctlfe_max_targets) { 303359575Sdim union ccb *ccb; 304359575Sdim 305359575Sdim ccb = (union ccb *)malloc(sizeof(*ccb), M_TEMP, 306359575Sdim M_NOWAIT | M_ZERO); 307359575Sdim if (ccb == NULL) { 308359575Sdim printf("%s: unable to malloc CCB!\n", __func__); 309359575Sdim return; 310359575Sdim } 311359575Sdim xpt_setup_ccb(&ccb->ccb_h, path, CAM_PRIORITY_NONE); 312359575Sdim 313359575Sdim ccb->ccb_h.func_code = XPT_SET_SIM_KNOB; 314359575Sdim ccb->knob.xport_specific.valid = KNOB_VALID_ROLE; 315359575Sdim ccb->knob.xport_specific.fc.role = KNOB_ROLE_INITIATOR; 316359575Sdim 317359575Sdim xpt_action(ccb); 318359575Sdim 319359575Sdim if ((ccb->ccb_h.status & CAM_STATUS_MASK) != 320359575Sdim CAM_REQ_CMP) { 321359575Sdim printf("%s: SIM %s%d (path id %d) initiator " 322359575Sdim "enable failed with status %#x\n", 323359575Sdim __func__, cpi->dev_name, 324359575Sdim cpi->unit_number, cpi->ccb_h.path_id, 325359575Sdim ccb->ccb_h.status); 326359575Sdim } else { 327359575Sdim printf("%s: SIM %s%d (path id %d) initiator " 328359575Sdim "enable succeeded\n", 329359575Sdim __func__, cpi->dev_name, 330359575Sdim cpi->unit_number, cpi->ccb_h.path_id); 331359575Sdim } 332359575Sdim 333359575Sdim free(ccb, M_TEMP); 334359575Sdim 335359575Sdim break; 336359575Sdim } else { 337359575Sdim ctlfe_num_targets++; 338359575Sdim } 339359575Sdim 340359575Sdim printf("%s: ctlfe_num_targets = %d\n", __func__, 341359575Sdim ctlfe_num_targets); 342359575Sdim#endif /* CTLFE_INIT_ENABLE */ 343359575Sdim 344359575Sdim /* 345359575Sdim * We're in an interrupt context here, so we have to 346359575Sdim * use M_NOWAIT. Of course this means trouble if we 347359575Sdim * can't allocate memory. 348359575Sdim */ 349359575Sdim bus_softc = malloc(sizeof(*bus_softc), M_CTLFE, 350359575Sdim M_NOWAIT | M_ZERO); 351359575Sdim if (bus_softc == NULL) { 352359575Sdim printf("%s: unable to malloc %zd bytes for softc\n", 353359575Sdim __func__, sizeof(*bus_softc)); 354359575Sdim return; 355359575Sdim } 356359575Sdim 357359575Sdim bus_softc->path_id = cpi->ccb_h.path_id; 358359575Sdim bus_softc->sim = xpt_path_sim(path); 359359575Sdim if (cpi->maxio != 0) 360359575Sdim bus_softc->maxio = cpi->maxio; 361359575Sdim else 362359575Sdim bus_softc->maxio = DFLTPHYS; 363359575Sdim mtx_init(&bus_softc->lun_softc_mtx, "LUN softc mtx", NULL, 364359575Sdim MTX_DEF); 365359575Sdim STAILQ_INIT(&bus_softc->lun_softc_list); 366359575Sdim 367359575Sdim port = &bus_softc->port; 368359575Sdim port->frontend = &ctlfe_frontend; 369359575Sdim 370359575Sdim /* 371359575Sdim * XXX KDM should we be more accurate here ? 372359575Sdim */ 373359575Sdim if (cpi->transport == XPORT_FC) 374359575Sdim port->port_type = CTL_PORT_FC; 375359575Sdim else if (cpi->transport == XPORT_SAS) 376359575Sdim port->port_type = CTL_PORT_SAS; 377359575Sdim else 378359575Sdim port->port_type = CTL_PORT_SCSI; 379359575Sdim 380359575Sdim /* XXX KDM what should the real number be here? */ 381359575Sdim port->num_requested_ctl_io = 4096; 382359575Sdim snprintf(bus_softc->port_name, sizeof(bus_softc->port_name), 383359575Sdim "%s%d", cpi->dev_name, cpi->unit_number); 384359575Sdim /* 385359575Sdim * XXX KDM it would be nice to allocate storage in the 386359575Sdim * frontend structure itself. 387359575Sdim */ 388359575Sdim port->port_name = bus_softc->port_name; 389359575Sdim port->physical_port = cpi->unit_number; 390359575Sdim port->virtual_port = cpi->bus_id; 391359575Sdim port->port_online = ctlfe_online; 392359575Sdim port->port_offline = ctlfe_offline; 393359575Sdim port->onoff_arg = bus_softc; 394359575Sdim port->lun_enable = ctlfe_lun_enable; 395359575Sdim port->lun_disable = ctlfe_lun_disable; 396359575Sdim port->targ_lun_arg = bus_softc; 397359575Sdim port->fe_datamove = ctlfe_datamove_done; 398359575Sdim port->fe_done = ctlfe_datamove_done; 399359575Sdim /* 400359575Sdim * XXX KDM the path inquiry doesn't give us the maximum 401359575Sdim * number of targets supported. 402359575Sdim */ 403359575Sdim port->max_targets = cpi->max_target; 404359575Sdim port->max_target_id = cpi->max_target; 405359575Sdim 406359575Sdim /* 407359575Sdim * XXX KDM need to figure out whether we're the master or 408359575Sdim * slave. 409359575Sdim */ 410359575Sdim#ifdef CTLFEDEBUG 411359575Sdim printf("%s: calling ctl_port_register() for %s%d\n", 412359575Sdim __func__, cpi->dev_name, cpi->unit_number); 413359575Sdim#endif 414359575Sdim retval = ctl_port_register(port, /*master_SC*/ 1); 415359575Sdim if (retval != 0) { 416359575Sdim printf("%s: ctl_port_register() failed with " 417359575Sdim "error %d!\n", __func__, retval); 418359575Sdim mtx_destroy(&bus_softc->lun_softc_mtx); 419359575Sdim free(bus_softc, M_CTLFE); 420359575Sdim break; 421359575Sdim } else { 422359575Sdim mtx_lock(&ctlfe_list_mtx); 423359575Sdim STAILQ_INSERT_TAIL(&ctlfe_softc_list, bus_softc, links); 424359575Sdim mtx_unlock(&ctlfe_list_mtx); 425359575Sdim } 426359575Sdim 427359575Sdim break; 428359575Sdim } 429359575Sdim case AC_PATH_DEREGISTERED: { 430359575Sdim struct ctlfe_softc *softc = NULL; 431359575Sdim 432359575Sdim mtx_lock(&ctlfe_list_mtx); 433359575Sdim STAILQ_FOREACH(softc, &ctlfe_softc_list, links) { 434359575Sdim if (softc->path_id == xpt_path_path_id(path)) { 435359575Sdim STAILQ_REMOVE(&ctlfe_softc_list, softc, 436359575Sdim ctlfe_softc, links); 437359575Sdim break; 438359575Sdim } 439359575Sdim } 440359575Sdim mtx_unlock(&ctlfe_list_mtx); 441359575Sdim 442359575Sdim if (softc != NULL) { 443359575Sdim /* 444359575Sdim * XXX KDM are we certain at this point that there 445359575Sdim * are no outstanding commands for this frontend? 446359575Sdim */ 447359575Sdim ctl_port_deregister(&softc->port); 448359575Sdim mtx_destroy(&softc->lun_softc_mtx); 449359575Sdim free(softc, M_CTLFE); 450359575Sdim } 451359575Sdim break; 452359575Sdim } 453359575Sdim case AC_CONTRACT: { 454359575Sdim struct ac_contract *ac; 455359575Sdim 456359575Sdim ac = (struct ac_contract *)arg; 457359575Sdim 458359575Sdim switch (ac->contract_number) { 459359575Sdim case AC_CONTRACT_DEV_CHG: { 460359575Sdim struct ac_device_changed *dev_chg; 461359575Sdim struct ctlfe_softc *softc; 462359575Sdim int retval, found; 463359575Sdim 464359575Sdim dev_chg = (struct ac_device_changed *)ac->contract_data; 465359575Sdim 466359575Sdim printf("%s: WWPN %#jx port 0x%06x path %u target %u %s\n", 467359575Sdim __func__, dev_chg->wwpn, dev_chg->port, 468359575Sdim xpt_path_path_id(path), dev_chg->target, 469359575Sdim (dev_chg->arrived == 0) ? "left" : "arrived"); 470359575Sdim 471359575Sdim found = 0; 472359575Sdim 473359575Sdim mtx_lock(&ctlfe_list_mtx); 474359575Sdim STAILQ_FOREACH(softc, &ctlfe_softc_list, links) { 475359575Sdim if (softc->path_id == xpt_path_path_id(path)) { 476359575Sdim found = 1; 477359575Sdim break; 478359575Sdim } 479359575Sdim } 480359575Sdim mtx_unlock(&ctlfe_list_mtx); 481359575Sdim 482359575Sdim if (found == 0) { 483359575Sdim printf("%s: CTL port for CAM path %u not " 484359575Sdim "found!\n", __func__, 485359575Sdim xpt_path_path_id(path)); 486359575Sdim break; 487359575Sdim } 488359575Sdim if (dev_chg->arrived != 0) { 489359575Sdim retval = ctl_add_initiator(&softc->port, 490359575Sdim dev_chg->target, dev_chg->wwpn, NULL); 491359575Sdim } else { 492359575Sdim retval = ctl_remove_initiator(&softc->port, 493359575Sdim dev_chg->target); 494359575Sdim } 495359575Sdim 496359575Sdim if (retval < 0) { 497359575Sdim printf("%s: could not %s port %d iid %u " 498359575Sdim "WWPN %#jx!\n", __func__, 499359575Sdim (dev_chg->arrived != 0) ? "add" : 500359575Sdim "remove", softc->port.targ_port, 501359575Sdim dev_chg->target, 502359575Sdim (uintmax_t)dev_chg->wwpn); 503359575Sdim } 504359575Sdim break; 505359575Sdim } 506359575Sdim default: 507359575Sdim printf("%s: unsupported contract number %ju\n", 508359575Sdim __func__, (uintmax_t)ac->contract_number); 509359575Sdim break; 510359575Sdim } 511359575Sdim break; 512359575Sdim } 513359575Sdim default: 514359575Sdim break; 515359575Sdim } 516359575Sdim} 517359575Sdim 518359575Sdimstatic cam_status 519359575Sdimctlferegister(struct cam_periph *periph, void *arg) 520359575Sdim{ 521359575Sdim struct ctlfe_softc *bus_softc; 522359575Sdim struct ctlfe_lun_softc *softc; 523359575Sdim union ccb en_lun_ccb; 524359575Sdim cam_status status; 525359575Sdim int i; 526359575Sdim 527359575Sdim softc = (struct ctlfe_lun_softc *)arg; 528359575Sdim bus_softc = softc->parent_softc; 529359575Sdim 530359575Sdim TAILQ_INIT(&softc->work_queue); 531359575Sdim softc->periph = periph; 532359575Sdim 533359575Sdim callout_init_mtx(&softc->dma_callout, xpt_path_mtx(periph->path), 534359575Sdim /*flags*/ 0); 535359575Sdim periph->softc = softc; 536359575Sdim 537359575Sdim xpt_setup_ccb(&en_lun_ccb.ccb_h, periph->path, CAM_PRIORITY_NONE); 538359575Sdim en_lun_ccb.ccb_h.func_code = XPT_EN_LUN; 539359575Sdim en_lun_ccb.cel.grp6_len = 0; 540359575Sdim en_lun_ccb.cel.grp7_len = 0; 541359575Sdim en_lun_ccb.cel.enable = 1; 542359575Sdim xpt_action(&en_lun_ccb); 543359575Sdim status = (en_lun_ccb.ccb_h.status & CAM_STATUS_MASK); 544359575Sdim if (status != CAM_REQ_CMP) { 545359575Sdim xpt_print(periph->path, "%s: Enable LUN failed, status 0x%x\n", 546359575Sdim __func__, en_lun_ccb.ccb_h.status); 547359575Sdim return (status); 548359575Sdim } 549359575Sdim 550359575Sdim status = CAM_REQ_CMP; 551359575Sdim 552359575Sdim for (i = 0; i < CTLFE_ATIO_PER_LUN; i++) { 553359575Sdim union ccb *new_ccb; 554359575Sdim 555359575Sdim new_ccb = (union ccb *)malloc(sizeof(*new_ccb), M_CTLFE, 556359575Sdim M_ZERO|M_NOWAIT); 557359575Sdim if (new_ccb == NULL) { 558359575Sdim status = CAM_RESRC_UNAVAIL; 559359575Sdim break; 560359575Sdim } 561359575Sdim xpt_setup_ccb(&new_ccb->ccb_h, periph->path, /*priority*/ 1); 562359575Sdim new_ccb->ccb_h.func_code = XPT_ACCEPT_TARGET_IO; 563359575Sdim new_ccb->ccb_h.cbfcnp = ctlfedone; 564359575Sdim new_ccb->ccb_h.flags |= CAM_UNLOCKED; 565359575Sdim xpt_action(new_ccb); 566359575Sdim softc->atios_sent++; 567359575Sdim status = new_ccb->ccb_h.status; 568359575Sdim if ((status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 569359575Sdim free(new_ccb, M_CTLFE); 570359575Sdim break; 571359575Sdim } 572359575Sdim } 573359575Sdim 574359575Sdim status = cam_periph_acquire(periph); 575359575Sdim if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 576359575Sdim xpt_print(periph->path, "%s: could not acquire reference " 577359575Sdim "count, status = %#x\n", __func__, status); 578359575Sdim return (status); 579359575Sdim } 580359575Sdim 581359575Sdim if (i == 0) { 582359575Sdim xpt_print(periph->path, "%s: could not allocate ATIO CCBs, " 583359575Sdim "status 0x%x\n", __func__, status); 584359575Sdim return (CAM_REQ_CMP_ERR); 585359575Sdim } 586359575Sdim 587359575Sdim for (i = 0; i < CTLFE_IN_PER_LUN; i++) { 588359575Sdim union ccb *new_ccb; 589359575Sdim 590359575Sdim new_ccb = (union ccb *)malloc(sizeof(*new_ccb), M_CTLFE, 591359575Sdim M_ZERO|M_NOWAIT); 592359575Sdim if (new_ccb == NULL) { 593359575Sdim status = CAM_RESRC_UNAVAIL; 594359575Sdim break; 595359575Sdim } 596359575Sdim 597359575Sdim xpt_setup_ccb(&new_ccb->ccb_h, periph->path, /*priority*/ 1); 598359575Sdim new_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY; 599359575Sdim new_ccb->ccb_h.cbfcnp = ctlfedone; 600359575Sdim new_ccb->ccb_h.flags |= CAM_UNLOCKED; 601359575Sdim xpt_action(new_ccb); 602359575Sdim softc->inots_sent++; 603359575Sdim status = new_ccb->ccb_h.status; 604359575Sdim if ((status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 605359575Sdim /* 606359575Sdim * Note that we don't free the CCB here. If the 607359575Sdim * status is not CAM_REQ_INPROG, then we're 608359575Sdim * probably talking to a SIM that says it is 609359575Sdim * target-capable but doesn't support the 610359575Sdim * XPT_IMMEDIATE_NOTIFY CCB. i.e. it supports the 611359575Sdim * older API. In that case, it'll call xpt_done() 612359575Sdim * on the CCB, and we need to free it in our done 613359575Sdim * routine as a result. 614359575Sdim */ 615359575Sdim break; 616359575Sdim } 617359575Sdim } 618359575Sdim if ((i == 0) 619359575Sdim || (status != CAM_REQ_INPROG)) { 620359575Sdim xpt_print(periph->path, "%s: could not allocate immediate " 621359575Sdim "notify CCBs, status 0x%x\n", __func__, status); 622359575Sdim return (CAM_REQ_CMP_ERR); 623359575Sdim } 624359575Sdim return (CAM_REQ_CMP); 625359575Sdim} 626359575Sdim 627359575Sdimstatic void 628359575Sdimctlfeoninvalidate(struct cam_periph *periph) 629359575Sdim{ 630359575Sdim union ccb en_lun_ccb; 631359575Sdim cam_status status; 632359575Sdim struct ctlfe_softc *bus_softc; 633359575Sdim struct ctlfe_lun_softc *softc; 634359575Sdim 635359575Sdim softc = (struct ctlfe_lun_softc *)periph->softc; 636359575Sdim 637359575Sdim xpt_setup_ccb(&en_lun_ccb.ccb_h, periph->path, CAM_PRIORITY_NONE); 638359575Sdim en_lun_ccb.ccb_h.func_code = XPT_EN_LUN; 639359575Sdim en_lun_ccb.cel.grp6_len = 0; 640359575Sdim en_lun_ccb.cel.grp7_len = 0; 641359575Sdim en_lun_ccb.cel.enable = 0; 642359575Sdim xpt_action(&en_lun_ccb); 643359575Sdim status = (en_lun_ccb.ccb_h.status & CAM_STATUS_MASK); 644359575Sdim if (status != CAM_REQ_CMP) { 645359575Sdim xpt_print(periph->path, "%s: Disable LUN failed, status 0x%x\n", 646359575Sdim __func__, en_lun_ccb.ccb_h.status); 647359575Sdim /* 648359575Sdim * XXX KDM what do we do now? 649359575Sdim */ 650359575Sdim } 651359575Sdim xpt_print(periph->path, "LUN removed, %ju ATIOs outstanding, %ju " 652359575Sdim "INOTs outstanding, %d refs\n", softc->atios_sent - 653359575Sdim softc->atios_returned, softc->inots_sent - 654359575Sdim softc->inots_returned, periph->refcount); 655359575Sdim 656359575Sdim bus_softc = softc->parent_softc; 657359575Sdim mtx_lock(&bus_softc->lun_softc_mtx); 658359575Sdim STAILQ_REMOVE(&bus_softc->lun_softc_list, softc, ctlfe_lun_softc, links); 659359575Sdim mtx_unlock(&bus_softc->lun_softc_mtx); 660359575Sdim} 661359575Sdim 662359575Sdimstatic void 663359575Sdimctlfecleanup(struct cam_periph *periph) 664359575Sdim{ 665359575Sdim struct ctlfe_lun_softc *softc; 666359575Sdim 667359575Sdim xpt_print(periph->path, "%s: Called\n", __func__); 668359575Sdim 669359575Sdim softc = (struct ctlfe_lun_softc *)periph->softc; 670359575Sdim 671359575Sdim /* 672359575Sdim * XXX KDM is there anything else that needs to be done here? 673359575Sdim */ 674359575Sdim 675359575Sdim callout_stop(&softc->dma_callout); 676359575Sdim 677359575Sdim free(softc, M_CTLFE); 678359575Sdim} 679359575Sdim 680359575Sdimstatic void 681359575Sdimctlfedata(struct ctlfe_lun_softc *softc, union ctl_io *io, 682359575Sdim ccb_flags *flags, uint8_t **data_ptr, uint32_t *dxfer_len, 683359575Sdim u_int16_t *sglist_cnt) 684359575Sdim{ 685359575Sdim struct ctlfe_softc *bus_softc; 686359575Sdim struct ctlfe_lun_cmd_info *cmd_info; 687359575Sdim struct ctl_sg_entry *ctl_sglist; 688359575Sdim bus_dma_segment_t *cam_sglist; 689359575Sdim size_t off; 690359575Sdim int i, idx; 691359575Sdim 692359575Sdim cmd_info = (struct ctlfe_lun_cmd_info *)io->io_hdr.port_priv; 693359575Sdim bus_softc = softc->parent_softc; 694359575Sdim 695359575Sdim /* 696359575Sdim * Set the direction, relative to the initiator. 697359575Sdim */ 698359575Sdim *flags &= ~CAM_DIR_MASK; 699359575Sdim if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 700359575Sdim *flags |= CAM_DIR_IN; 701359575Sdim else 702359575Sdim *flags |= CAM_DIR_OUT; 703359575Sdim 704359575Sdim *flags &= ~CAM_DATA_MASK; 705359575Sdim idx = cmd_info->cur_transfer_index; 706359575Sdim off = cmd_info->cur_transfer_off; 707359575Sdim cmd_info->flags &= ~CTLFE_CMD_PIECEWISE; 708359575Sdim if (io->scsiio.kern_sg_entries == 0) { 709359575Sdim /* No S/G list. */ 710359575Sdim *data_ptr = io->scsiio.kern_data_ptr + off; 711359575Sdim if (io->scsiio.kern_data_len - off <= bus_softc->maxio) { 712359575Sdim *dxfer_len = io->scsiio.kern_data_len - off; 713359575Sdim } else { 714359575Sdim *dxfer_len = bus_softc->maxio; 715359575Sdim cmd_info->cur_transfer_index = -1; 716359575Sdim cmd_info->cur_transfer_off = bus_softc->maxio; 717359575Sdim cmd_info->flags |= CTLFE_CMD_PIECEWISE; 718359575Sdim } 719359575Sdim *sglist_cnt = 0; 720359575Sdim 721359575Sdim if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) 722359575Sdim *flags |= CAM_DATA_PADDR; 723359575Sdim else 724359575Sdim *flags |= CAM_DATA_VADDR; 725359575Sdim } else { 726359575Sdim /* S/G list with physical or virtual pointers. */ 727359575Sdim ctl_sglist = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 728359575Sdim cam_sglist = cmd_info->cam_sglist; 729359575Sdim *dxfer_len = 0; 730359575Sdim for (i = 0; i < io->scsiio.kern_sg_entries - idx; i++) { 731359575Sdim cam_sglist[i].ds_addr = (bus_addr_t)ctl_sglist[i + idx].addr + off; 732359575Sdim if (ctl_sglist[i + idx].len - off <= bus_softc->maxio - *dxfer_len) { 733359575Sdim cam_sglist[i].ds_len = ctl_sglist[idx + i].len - off; 734359575Sdim *dxfer_len += cam_sglist[i].ds_len; 735359575Sdim } else { 736359575Sdim cam_sglist[i].ds_len = bus_softc->maxio - *dxfer_len; 737359575Sdim cmd_info->cur_transfer_index = idx + i; 738359575Sdim cmd_info->cur_transfer_off = cam_sglist[i].ds_len + off; 739359575Sdim cmd_info->flags |= CTLFE_CMD_PIECEWISE; 740359575Sdim *dxfer_len += cam_sglist[i].ds_len; 741359575Sdim if (ctl_sglist[i].len != 0) 742359575Sdim i++; 743359575Sdim break; 744359575Sdim } 745359575Sdim if (i == (CTLFE_MAX_SEGS - 1) && 746359575Sdim idx + i < (io->scsiio.kern_sg_entries - 1)) { 747359575Sdim cmd_info->cur_transfer_index = idx + i + 1; 748359575Sdim cmd_info->cur_transfer_off = 0; 749359575Sdim cmd_info->flags |= CTLFE_CMD_PIECEWISE; 750359575Sdim i++; 751359575Sdim break; 752359575Sdim } 753359575Sdim off = 0; 754359575Sdim } 755359575Sdim *sglist_cnt = i; 756359575Sdim if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) 757359575Sdim *flags |= CAM_DATA_SG_PADDR; 758359575Sdim else 759359575Sdim *flags |= CAM_DATA_SG; 760359575Sdim *data_ptr = (uint8_t *)cam_sglist; 761359575Sdim } 762359575Sdim} 763359575Sdim 764359575Sdimstatic void 765359575Sdimctlfestart(struct cam_periph *periph, union ccb *start_ccb) 766359575Sdim{ 767359575Sdim struct ctlfe_lun_softc *softc; 768359575Sdim struct ccb_hdr *ccb_h; 769359575Sdim 770359575Sdim softc = (struct ctlfe_lun_softc *)periph->softc; 771359575Sdim 772359575Sdim softc->ccbs_alloced++; 773359575Sdim 774359575Sdim start_ccb->ccb_h.ccb_type = CTLFE_CCB_DEFAULT; 775359575Sdim 776359575Sdim ccb_h = TAILQ_FIRST(&softc->work_queue); 777359575Sdim if (ccb_h == NULL) { 778359575Sdim softc->ccbs_freed++; 779359575Sdim xpt_release_ccb(start_ccb); 780359575Sdim } else { 781359575Sdim struct ccb_accept_tio *atio; 782359575Sdim struct ccb_scsiio *csio; 783359575Sdim uint8_t *data_ptr; 784359575Sdim uint32_t dxfer_len; 785359575Sdim ccb_flags flags; 786359575Sdim union ctl_io *io; 787359575Sdim uint8_t scsi_status; 788359575Sdim 789359575Sdim /* Take the ATIO off the work queue */ 790359575Sdim TAILQ_REMOVE(&softc->work_queue, ccb_h, periph_links.tqe); 791359575Sdim atio = (struct ccb_accept_tio *)ccb_h; 792359575Sdim io = (union ctl_io *)ccb_h->io_ptr; 793359575Sdim csio = &start_ccb->csio; 794359575Sdim 795359575Sdim flags = atio->ccb_h.flags & 796359575Sdim (CAM_DIS_DISCONNECT|CAM_TAG_ACTION_VALID|CAM_DIR_MASK); 797359575Sdim 798359575Sdim if ((io == NULL) 799359575Sdim || (io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 800359575Sdim /* 801359575Sdim * We're done, send status back. 802359575Sdim */ 803359575Sdim flags |= CAM_SEND_STATUS; 804359575Sdim if (io == NULL) { 805359575Sdim scsi_status = SCSI_STATUS_BUSY; 806359575Sdim csio->sense_len = 0; 807359575Sdim } else if ((io->io_hdr.flags & CTL_FLAG_ABORT) && 808359575Sdim (io->io_hdr.flags & CTL_FLAG_ABORT_STATUS) == 0) { 809359575Sdim io->io_hdr.flags &= ~CTL_FLAG_STATUS_QUEUED; 810359575Sdim 811359575Sdim /* 812359575Sdim * If this command was aborted, we don't 813359575Sdim * need to send status back to the SIM. 814359575Sdim * Just free the CTIO and ctl_io, and 815359575Sdim * recycle the ATIO back to the SIM. 816359575Sdim */ 817359575Sdim xpt_print(periph->path, "%s: aborted " 818359575Sdim "command 0x%04x discarded\n", 819359575Sdim __func__, io->scsiio.tag_num); 820359575Sdim ctl_free_io(io); 821359575Sdim /* 822359575Sdim * For a wildcard attachment, commands can 823359575Sdim * come in with a specific target/lun. Reset 824359575Sdim * the target and LUN fields back to the 825359575Sdim * wildcard values before we send them back 826359575Sdim * down to the SIM. The SIM has a wildcard 827359575Sdim * LUN enabled, not whatever target/lun 828359575Sdim * these happened to be. 829359575Sdim */ 830359575Sdim if (softc->flags & CTLFE_LUN_WILDCARD) { 831359575Sdim atio->ccb_h.target_id = 832359575Sdim CAM_TARGET_WILDCARD; 833359575Sdim atio->ccb_h.target_lun = 834359575Sdim CAM_LUN_WILDCARD; 835359575Sdim } 836359575Sdim 837359575Sdim if ((atio->ccb_h.status & CAM_DEV_QFRZN) != 0) { 838359575Sdim cam_release_devq(periph->path, 839359575Sdim /*relsim_flags*/0, 840359575Sdim /*reduction*/0, 841359575Sdim /*timeout*/0, 842359575Sdim /*getcount_only*/0); 843359575Sdim atio->ccb_h.status &= ~CAM_DEV_QFRZN; 844359575Sdim } 845359575Sdim 846359575Sdim ccb_h = TAILQ_FIRST(&softc->work_queue); 847359575Sdim 848359575Sdim if (atio->ccb_h.func_code != 849359575Sdim XPT_ACCEPT_TARGET_IO) { 850359575Sdim xpt_print(periph->path, "%s: func_code " 851359575Sdim "is %#x\n", __func__, 852359575Sdim atio->ccb_h.func_code); 853359575Sdim } 854359575Sdim start_ccb->ccb_h.func_code = XPT_ABORT; 855359575Sdim start_ccb->cab.abort_ccb = (union ccb *)atio; 856359575Sdim 857359575Sdim /* Tell the SIM that we've aborted this ATIO */ 858359575Sdim xpt_action(start_ccb); 859359575Sdim softc->ccbs_freed++; 860359575Sdim xpt_release_ccb(start_ccb); 861359575Sdim 862359575Sdim /* 863359575Sdim * Send the ATIO back down to the SIM. 864359575Sdim */ 865359575Sdim xpt_action((union ccb *)atio); 866359575Sdim softc->atios_sent++; 867359575Sdim 868359575Sdim /* 869359575Sdim * If we still have work to do, ask for 870359575Sdim * another CCB. Otherwise, deactivate our 871359575Sdim * callout. 872359575Sdim */ 873359575Sdim if (ccb_h != NULL) 874359575Sdim xpt_schedule(periph, /*priority*/ 1); 875359575Sdim else 876359575Sdim callout_stop(&softc->dma_callout); 877359575Sdim 878359575Sdim return; 879359575Sdim } else { 880359575Sdim io->io_hdr.flags &= ~CTL_FLAG_STATUS_QUEUED; 881359575Sdim scsi_status = io->scsiio.scsi_status; 882359575Sdim csio->sense_len = io->scsiio.sense_len; 883359575Sdim } 884359575Sdim data_ptr = NULL; 885359575Sdim dxfer_len = 0; 886359575Sdim if (io == NULL) { 887359575Sdim printf("%s: tag %04x io is NULL\n", __func__, 888359575Sdim atio->tag_id); 889359575Sdim } else { 890359575Sdim#ifdef CTLFEDEBUG 891359575Sdim printf("%s: tag %04x status %x\n", __func__, 892359575Sdim atio->tag_id, io->io_hdr.status); 893359575Sdim#endif 894359575Sdim } 895359575Sdim csio->sglist_cnt = 0; 896359575Sdim if (csio->sense_len != 0) { 897359575Sdim csio->sense_data = io->scsiio.sense_data; 898359575Sdim flags |= CAM_SEND_SENSE; 899359575Sdim } else if (scsi_status == SCSI_STATUS_CHECK_COND) { 900359575Sdim xpt_print(periph->path, "%s: check condition " 901359575Sdim "with no sense\n", __func__); 902359575Sdim } 903359575Sdim } else { 904359575Sdim struct ctlfe_lun_cmd_info *cmd_info; 905359575Sdim 906359575Sdim /* 907359575Sdim * Datamove call, we need to setup the S/G list. 908359575Sdim */ 909359575Sdim 910359575Sdim cmd_info = (struct ctlfe_lun_cmd_info *) 911359575Sdim io->io_hdr.port_priv; 912359575Sdim 913359575Sdim KASSERT(sizeof(*cmd_info) < CTL_PORT_PRIV_SIZE, 914359575Sdim ("%s: sizeof(struct ctlfe_lun_cmd_info) %zd < " 915359575Sdim "CTL_PORT_PRIV_SIZE %d", __func__, 916359575Sdim sizeof(*cmd_info), CTL_PORT_PRIV_SIZE)); 917359575Sdim io->io_hdr.flags &= ~CTL_FLAG_DMA_QUEUED; 918359575Sdim 919359575Sdim /* 920359575Sdim * Need to zero this, in case it has been used for 921359575Sdim * a previous datamove for this particular I/O. 922359575Sdim */ 923359575Sdim bzero(cmd_info, sizeof(*cmd_info)); 924359575Sdim scsi_status = 0; 925359575Sdim 926359575Sdim csio->cdb_len = atio->cdb_len; 927359575Sdim 928359575Sdim ctlfedata(softc, io, &flags, &data_ptr, &dxfer_len, 929359575Sdim &csio->sglist_cnt); 930359575Sdim 931359575Sdim io->scsiio.ext_data_filled += dxfer_len; 932359575Sdim 933359575Sdim if (io->scsiio.ext_data_filled > 934359575Sdim io->scsiio.kern_total_len) { 935359575Sdim xpt_print(periph->path, "%s: tag 0x%04x " 936359575Sdim "fill len %u > total %u\n", 937359575Sdim __func__, io->scsiio.tag_num, 938359575Sdim io->scsiio.ext_data_filled, 939359575Sdim io->scsiio.kern_total_len); 940359575Sdim } 941359575Sdim } 942359575Sdim 943359575Sdim#ifdef CTLFEDEBUG 944359575Sdim printf("%s: %s: tag %04x flags %x ptr %p len %u\n", __func__, 945359575Sdim (flags & CAM_SEND_STATUS) ? "done" : "datamove", 946359575Sdim atio->tag_id, flags, data_ptr, dxfer_len); 947359575Sdim#endif 948359575Sdim 949359575Sdim /* 950359575Sdim * Valid combinations: 951359575Sdim * - CAM_SEND_STATUS, CAM_DATA_SG = 0, dxfer_len = 0, 952359575Sdim * sglist_cnt = 0 953359575Sdim * - CAM_SEND_STATUS = 0, CAM_DATA_SG = 0, dxfer_len != 0, 954359575Sdim * sglist_cnt = 0 955359575Sdim * - CAM_SEND_STATUS = 0, CAM_DATA_SG, dxfer_len != 0, 956359575Sdim * sglist_cnt != 0 957359575Sdim */ 958359575Sdim#ifdef CTLFEDEBUG 959359575Sdim if (((flags & CAM_SEND_STATUS) 960359575Sdim && (((flags & CAM_DATA_SG) != 0) 961359575Sdim || (dxfer_len != 0) 962359575Sdim || (csio->sglist_cnt != 0))) 963359575Sdim || (((flags & CAM_SEND_STATUS) == 0) 964359575Sdim && (dxfer_len == 0)) 965359575Sdim || ((flags & CAM_DATA_SG) 966359575Sdim && (csio->sglist_cnt == 0)) 967359575Sdim || (((flags & CAM_DATA_SG) == 0) 968359575Sdim && (csio->sglist_cnt != 0))) { 969359575Sdim printf("%s: tag %04x cdb %02x flags %#x dxfer_len " 970359575Sdim "%d sg %u\n", __func__, atio->tag_id, 971359575Sdim atio->cdb_io.cdb_bytes[0], flags, dxfer_len, 972359575Sdim csio->sglist_cnt); 973359575Sdim if (io != NULL) { 974359575Sdim printf("%s: tag %04x io status %#x\n", __func__, 975359575Sdim atio->tag_id, io->io_hdr.status); 976359575Sdim } else { 977359575Sdim printf("%s: tag %04x no associated io\n", 978359575Sdim __func__, atio->tag_id); 979359575Sdim } 980359575Sdim } 981359575Sdim#endif 982359575Sdim cam_fill_ctio(csio, 983359575Sdim /*retries*/ 2, 984359575Sdim ctlfedone, 985359575Sdim flags, 986359575Sdim (flags & CAM_TAG_ACTION_VALID) ? 987359575Sdim MSG_SIMPLE_Q_TAG : 0, 988359575Sdim atio->tag_id, 989359575Sdim atio->init_id, 990359575Sdim scsi_status, 991359575Sdim /*data_ptr*/ data_ptr, 992359575Sdim /*dxfer_len*/ dxfer_len, 993359575Sdim /*timeout*/ 5 * 1000); 994359575Sdim start_ccb->ccb_h.flags |= CAM_UNLOCKED; 995359575Sdim start_ccb->ccb_h.ccb_atio = atio; 996359575Sdim if (((flags & CAM_SEND_STATUS) == 0) 997359575Sdim && (io != NULL)) 998359575Sdim io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 999359575Sdim 1000359575Sdim softc->ctios_sent++; 1001359575Sdim 1002359575Sdim cam_periph_unlock(periph); 1003359575Sdim xpt_action(start_ccb); 1004359575Sdim cam_periph_lock(periph); 1005359575Sdim 1006359575Sdim if ((atio->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1007359575Sdim cam_release_devq(periph->path, 1008359575Sdim /*relsim_flags*/0, 1009359575Sdim /*reduction*/0, 1010359575Sdim /*timeout*/0, 1011359575Sdim /*getcount_only*/0); 1012359575Sdim atio->ccb_h.status &= ~CAM_DEV_QFRZN; 1013359575Sdim } 1014359575Sdim 1015359575Sdim ccb_h = TAILQ_FIRST(&softc->work_queue); 1016359575Sdim } 1017359575Sdim /* 1018359575Sdim * If we still have work to do, ask for another CCB. Otherwise, 1019359575Sdim * deactivate our callout. 1020359575Sdim */ 1021359575Sdim if (ccb_h != NULL) 1022359575Sdim xpt_schedule(periph, /*priority*/ 1); 1023359575Sdim else 1024359575Sdim callout_stop(&softc->dma_callout); 1025359575Sdim} 1026359575Sdim 1027359575Sdimstatic void 1028359575Sdimctlfe_free_ccb(struct cam_periph *periph, union ccb *ccb) 1029359575Sdim{ 1030359575Sdim struct ctlfe_lun_softc *softc; 1031359575Sdim 1032359575Sdim softc = (struct ctlfe_lun_softc *)periph->softc; 1033359575Sdim 1034359575Sdim switch (ccb->ccb_h.func_code) { 1035359575Sdim case XPT_ACCEPT_TARGET_IO: 1036359575Sdim softc->atios_returned++; 1037359575Sdim break; 1038359575Sdim case XPT_IMMEDIATE_NOTIFY: 1039359575Sdim case XPT_NOTIFY_ACKNOWLEDGE: 1040359575Sdim softc->inots_returned++; 1041359575Sdim break; 1042359575Sdim default: 1043359575Sdim break; 1044359575Sdim } 1045359575Sdim 1046359575Sdim free(ccb, M_CTLFE); 1047359575Sdim 1048359575Sdim KASSERT(softc->atios_returned <= softc->atios_sent, ("%s: " 1049359575Sdim "atios_returned %ju > atios_sent %ju", __func__, 1050359575Sdim softc->atios_returned, softc->atios_sent)); 1051359575Sdim KASSERT(softc->inots_returned <= softc->inots_sent, ("%s: " 1052359575Sdim "inots_returned %ju > inots_sent %ju", __func__, 1053359575Sdim softc->inots_returned, softc->inots_sent)); 1054359575Sdim 1055359575Sdim /* 1056359575Sdim * If we have received all of our CCBs, we can release our 1057359575Sdim * reference on the peripheral driver. It will probably go away 1058359575Sdim * now. 1059359575Sdim */ 1060359575Sdim if ((softc->atios_returned == softc->atios_sent) 1061359575Sdim && (softc->inots_returned == softc->inots_sent)) { 1062359575Sdim cam_periph_release_locked(periph); 1063359575Sdim } 1064359575Sdim} 1065359575Sdim 1066359575Sdimstatic int 1067359575Sdimctlfe_adjust_cdb(struct ccb_accept_tio *atio, uint32_t offset) 1068359575Sdim{ 1069359575Sdim uint64_t lba; 1070359575Sdim uint32_t num_blocks, nbc; 1071359575Sdim uint8_t *cmdbyt = (atio->ccb_h.flags & CAM_CDB_POINTER)? 1072359575Sdim atio->cdb_io.cdb_ptr : atio->cdb_io.cdb_bytes; 1073359575Sdim 1074359575Sdim nbc = offset >> 9; /* ASSUMING 512 BYTE BLOCKS */ 1075 1076 switch (cmdbyt[0]) { 1077 case READ_6: 1078 case WRITE_6: 1079 { 1080 struct scsi_rw_6 *cdb = (struct scsi_rw_6 *)cmdbyt; 1081 lba = scsi_3btoul(cdb->addr); 1082 lba &= 0x1fffff; 1083 num_blocks = cdb->length; 1084 if (num_blocks == 0) 1085 num_blocks = 256; 1086 lba += nbc; 1087 num_blocks -= nbc; 1088 scsi_ulto3b(lba, cdb->addr); 1089 cdb->length = num_blocks; 1090 break; 1091 } 1092 case READ_10: 1093 case WRITE_10: 1094 { 1095 struct scsi_rw_10 *cdb = (struct scsi_rw_10 *)cmdbyt; 1096 lba = scsi_4btoul(cdb->addr); 1097 num_blocks = scsi_2btoul(cdb->length); 1098 lba += nbc; 1099 num_blocks -= nbc; 1100 scsi_ulto4b(lba, cdb->addr); 1101 scsi_ulto2b(num_blocks, cdb->length); 1102 break; 1103 } 1104 case READ_12: 1105 case WRITE_12: 1106 { 1107 struct scsi_rw_12 *cdb = (struct scsi_rw_12 *)cmdbyt; 1108 lba = scsi_4btoul(cdb->addr); 1109 num_blocks = scsi_4btoul(cdb->length); 1110 lba += nbc; 1111 num_blocks -= nbc; 1112 scsi_ulto4b(lba, cdb->addr); 1113 scsi_ulto4b(num_blocks, cdb->length); 1114 break; 1115 } 1116 case READ_16: 1117 case WRITE_16: 1118 case WRITE_ATOMIC_16: 1119 { 1120 struct scsi_rw_16 *cdb = (struct scsi_rw_16 *)cmdbyt; 1121 lba = scsi_8btou64(cdb->addr); 1122 num_blocks = scsi_4btoul(cdb->length); 1123 lba += nbc; 1124 num_blocks -= nbc; 1125 scsi_u64to8b(lba, cdb->addr); 1126 scsi_ulto4b(num_blocks, cdb->length); 1127 break; 1128 } 1129 default: 1130 return -1; 1131 } 1132 return (0); 1133} 1134 1135static void 1136ctlfedone(struct cam_periph *periph, union ccb *done_ccb) 1137{ 1138 struct ctlfe_lun_softc *softc; 1139 struct ctlfe_softc *bus_softc; 1140 struct ccb_accept_tio *atio = NULL; 1141 union ctl_io *io = NULL; 1142 struct mtx *mtx; 1143 1144 KASSERT((done_ccb->ccb_h.flags & CAM_UNLOCKED) != 0, 1145 ("CCB in ctlfedone() without CAM_UNLOCKED flag")); 1146#ifdef CTLFE_DEBUG 1147 printf("%s: entered, func_code = %#x, type = %#lx\n", __func__, 1148 done_ccb->ccb_h.func_code, done_ccb->ccb_h.ccb_type); 1149#endif 1150 1151 softc = (struct ctlfe_lun_softc *)periph->softc; 1152 bus_softc = softc->parent_softc; 1153 mtx = cam_periph_mtx(periph); 1154 mtx_lock(mtx); 1155 1156 /* 1157 * If the peripheral is invalid, ATIOs and immediate notify CCBs 1158 * need to be freed. Most of the ATIOs and INOTs that come back 1159 * will be CCBs that are being returned from the SIM as a result of 1160 * our disabling the LUN. 1161 * 1162 * Other CCB types are handled in their respective cases below. 1163 */ 1164 if (periph->flags & CAM_PERIPH_INVALID) { 1165 switch (done_ccb->ccb_h.func_code) { 1166 case XPT_ACCEPT_TARGET_IO: 1167 case XPT_IMMEDIATE_NOTIFY: 1168 case XPT_NOTIFY_ACKNOWLEDGE: 1169 ctlfe_free_ccb(periph, done_ccb); 1170 goto out; 1171 default: 1172 break; 1173 } 1174 1175 } 1176 switch (done_ccb->ccb_h.func_code) { 1177 case XPT_ACCEPT_TARGET_IO: { 1178 1179 atio = &done_ccb->atio; 1180 1181 softc->atios_returned++; 1182 1183 resubmit: 1184 /* 1185 * Allocate a ctl_io, pass it to CTL, and wait for the 1186 * datamove or done. 1187 */ 1188 io = ctl_alloc_io(bus_softc->port.ctl_pool_ref); 1189 if (io == NULL) { 1190 atio->ccb_h.flags &= ~CAM_DIR_MASK; 1191 atio->ccb_h.flags |= CAM_DIR_NONE; 1192 1193 printf("%s: ctl_alloc_io failed!\n", __func__); 1194 1195 /* 1196 * XXX KDM need to set SCSI_STATUS_BUSY, but there 1197 * is no field in the ATIO structure to do that, 1198 * and we aren't able to allocate a ctl_io here. 1199 * What to do? 1200 */ 1201 atio->sense_len = 0; 1202 done_ccb->ccb_h.io_ptr = NULL; 1203 TAILQ_INSERT_TAIL(&softc->work_queue, &atio->ccb_h, 1204 periph_links.tqe); 1205 xpt_schedule(periph, /*priority*/ 1); 1206 break; 1207 } 1208 mtx_unlock(mtx); 1209 ctl_zero_io(io); 1210 1211 /* Save pointers on both sides */ 1212 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = done_ccb; 1213 done_ccb->ccb_h.io_ptr = io; 1214 1215 /* 1216 * Only SCSI I/O comes down this path, resets, etc. come 1217 * down the immediate notify path below. 1218 */ 1219 io->io_hdr.io_type = CTL_IO_SCSI; 1220 io->io_hdr.nexus.initid.id = atio->init_id; 1221 io->io_hdr.nexus.targ_port = bus_softc->port.targ_port; 1222 io->io_hdr.nexus.targ_target.id = atio->ccb_h.target_id; 1223 io->io_hdr.nexus.targ_lun = atio->ccb_h.target_lun; 1224 io->scsiio.tag_num = atio->tag_id; 1225 switch (atio->tag_action) { 1226 case CAM_TAG_ACTION_NONE: 1227 io->scsiio.tag_type = CTL_TAG_UNTAGGED; 1228 break; 1229 case MSG_SIMPLE_TASK: 1230 io->scsiio.tag_type = CTL_TAG_SIMPLE; 1231 break; 1232 case MSG_HEAD_OF_QUEUE_TASK: 1233 io->scsiio.tag_type = CTL_TAG_HEAD_OF_QUEUE; 1234 break; 1235 case MSG_ORDERED_TASK: 1236 io->scsiio.tag_type = CTL_TAG_ORDERED; 1237 break; 1238 case MSG_ACA_TASK: 1239 io->scsiio.tag_type = CTL_TAG_ACA; 1240 break; 1241 default: 1242 io->scsiio.tag_type = CTL_TAG_UNTAGGED; 1243 printf("%s: unhandled tag type %#x!!\n", __func__, 1244 atio->tag_action); 1245 break; 1246 } 1247 if (atio->cdb_len > sizeof(io->scsiio.cdb)) { 1248 printf("%s: WARNING: CDB len %d > ctl_io space %zd\n", 1249 __func__, atio->cdb_len, sizeof(io->scsiio.cdb)); 1250 } 1251 io->scsiio.cdb_len = min(atio->cdb_len, sizeof(io->scsiio.cdb)); 1252 bcopy(atio->cdb_io.cdb_bytes, io->scsiio.cdb, 1253 io->scsiio.cdb_len); 1254 1255#ifdef CTLFEDEBUG 1256 printf("%s: %ju:%d:%ju:%d: tag %04x CDB %02x\n", __func__, 1257 (uintmax_t)io->io_hdr.nexus.initid.id, 1258 io->io_hdr.nexus.targ_port, 1259 (uintmax_t)io->io_hdr.nexus.targ_target.id, 1260 io->io_hdr.nexus.targ_lun, 1261 io->scsiio.tag_num, io->scsiio.cdb[0]); 1262#endif 1263 1264 ctl_queue(io); 1265 return; 1266 } 1267 case XPT_CONT_TARGET_IO: { 1268 int srr = 0; 1269 uint32_t srr_off = 0; 1270 1271 atio = (struct ccb_accept_tio *)done_ccb->ccb_h.ccb_atio; 1272 io = (union ctl_io *)atio->ccb_h.io_ptr; 1273 1274 softc->ctios_returned++; 1275#ifdef CTLFEDEBUG 1276 printf("%s: got XPT_CONT_TARGET_IO tag %#x flags %#x\n", 1277 __func__, atio->tag_id, done_ccb->ccb_h.flags); 1278#endif 1279 /* 1280 * Handle SRR case were the data pointer is pushed back hack 1281 */ 1282 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_MESSAGE_RECV 1283 && done_ccb->csio.msg_ptr != NULL 1284 && done_ccb->csio.msg_ptr[0] == MSG_EXTENDED 1285 && done_ccb->csio.msg_ptr[1] == 5 1286 && done_ccb->csio.msg_ptr[2] == 0) { 1287 srr = 1; 1288 srr_off = 1289 (done_ccb->csio.msg_ptr[3] << 24) 1290 | (done_ccb->csio.msg_ptr[4] << 16) 1291 | (done_ccb->csio.msg_ptr[5] << 8) 1292 | (done_ccb->csio.msg_ptr[6]); 1293 } 1294 1295 if (srr && (done_ccb->ccb_h.flags & CAM_SEND_STATUS)) { 1296 /* 1297 * If status was being sent, the back end data is now 1298 * history. Hack it up and resubmit a new command with 1299 * the CDB adjusted. If the SIM does the right thing, 1300 * all of the resid math should work. 1301 */ 1302 softc->ccbs_freed++; 1303 xpt_release_ccb(done_ccb); 1304 ctl_free_io(io); 1305 if (ctlfe_adjust_cdb(atio, srr_off) == 0) { 1306 done_ccb = (union ccb *)atio; 1307 goto resubmit; 1308 } 1309 /* 1310 * Fall through to doom.... 1311 */ 1312 } else if (srr) { 1313 /* 1314 * If we have an srr and we're still sending data, we 1315 * should be able to adjust offsets and cycle again. 1316 */ 1317 io->scsiio.kern_rel_offset = 1318 io->scsiio.ext_data_filled = srr_off; 1319 io->scsiio.ext_data_len = io->scsiio.kern_total_len - 1320 io->scsiio.kern_rel_offset; 1321 softc->ccbs_freed++; 1322 io->scsiio.io_hdr.status = CTL_STATUS_NONE; 1323 xpt_release_ccb(done_ccb); 1324 TAILQ_INSERT_HEAD(&softc->work_queue, &atio->ccb_h, 1325 periph_links.tqe); 1326 xpt_schedule(periph, /*priority*/ 1); 1327 break; 1328 } 1329 1330 /* 1331 * If we were sending status back to the initiator, free up 1332 * resources. If we were doing a datamove, call the 1333 * datamove done routine. 1334 */ 1335 if (done_ccb->ccb_h.flags & CAM_SEND_STATUS) { 1336 softc->ccbs_freed++; 1337 xpt_release_ccb(done_ccb); 1338 ctl_free_io(io); 1339 /* 1340 * For a wildcard attachment, commands can come in 1341 * with a specific target/lun. Reset the target 1342 * and LUN fields back to the wildcard values before 1343 * we send them back down to the SIM. The SIM has 1344 * a wildcard LUN enabled, not whatever target/lun 1345 * these happened to be. 1346 */ 1347 if (softc->flags & CTLFE_LUN_WILDCARD) { 1348 atio->ccb_h.target_id = CAM_TARGET_WILDCARD; 1349 atio->ccb_h.target_lun = CAM_LUN_WILDCARD; 1350 } 1351 if (periph->flags & CAM_PERIPH_INVALID) { 1352 ctlfe_free_ccb(periph, (union ccb *)atio); 1353 } else { 1354 softc->atios_sent++; 1355 mtx_unlock(mtx); 1356 xpt_action((union ccb *)atio); 1357 return; 1358 } 1359 } else { 1360 struct ctlfe_lun_cmd_info *cmd_info; 1361 struct ccb_scsiio *csio; 1362 1363 csio = &done_ccb->csio; 1364 cmd_info = (struct ctlfe_lun_cmd_info *) 1365 io->io_hdr.port_priv; 1366 1367 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1368 1369 io->scsiio.ext_data_len += csio->dxfer_len; 1370 if (io->scsiio.ext_data_len > 1371 io->scsiio.kern_total_len) { 1372 xpt_print(periph->path, "%s: tag 0x%04x " 1373 "done len %u > total %u sent %u\n", 1374 __func__, io->scsiio.tag_num, 1375 io->scsiio.ext_data_len, 1376 io->scsiio.kern_total_len, 1377 io->scsiio.ext_data_filled); 1378 } 1379 /* 1380 * Translate CAM status to CTL status. Success 1381 * does not change the overall, ctl_io status. In 1382 * that case we just set port_status to 0. If we 1383 * have a failure, though, set a data phase error 1384 * for the overall ctl_io. 1385 */ 1386 switch (done_ccb->ccb_h.status & CAM_STATUS_MASK) { 1387 case CAM_REQ_CMP: 1388 io->io_hdr.port_status = 0; 1389 break; 1390 default: 1391 /* 1392 * XXX KDM we probably need to figure out a 1393 * standard set of errors that the SIM 1394 * drivers should return in the event of a 1395 * data transfer failure. A data phase 1396 * error will at least point the user to a 1397 * data transfer error of some sort. 1398 * Hopefully the SIM printed out some 1399 * additional information to give the user 1400 * a clue what happened. 1401 */ 1402 io->io_hdr.port_status = 0xbad1; 1403 ctl_set_data_phase_error(&io->scsiio); 1404 /* 1405 * XXX KDM figure out residual. 1406 */ 1407 break; 1408 } 1409 /* 1410 * If we had to break this S/G list into multiple 1411 * pieces, figure out where we are in the list, and 1412 * continue sending pieces if necessary. 1413 */ 1414 if ((cmd_info->flags & CTLFE_CMD_PIECEWISE) 1415 && (io->io_hdr.port_status == 0)) { 1416 ccb_flags flags; 1417 uint8_t scsi_status; 1418 uint8_t *data_ptr; 1419 uint32_t dxfer_len; 1420 1421 flags = atio->ccb_h.flags & 1422 (CAM_DIS_DISCONNECT| 1423 CAM_TAG_ACTION_VALID); 1424 1425 ctlfedata(softc, io, &flags, &data_ptr, 1426 &dxfer_len, &csio->sglist_cnt); 1427 1428 scsi_status = 0; 1429 1430 if (((flags & CAM_SEND_STATUS) == 0) 1431 && (dxfer_len == 0)) { 1432 printf("%s: tag %04x no status or " 1433 "len cdb = %02x\n", __func__, 1434 atio->tag_id, 1435 atio->cdb_io.cdb_bytes[0]); 1436 printf("%s: tag %04x io status %#x\n", 1437 __func__, atio->tag_id, 1438 io->io_hdr.status); 1439 } 1440 1441 cam_fill_ctio(csio, 1442 /*retries*/ 2, 1443 ctlfedone, 1444 flags, 1445 (flags & CAM_TAG_ACTION_VALID) ? 1446 MSG_SIMPLE_Q_TAG : 0, 1447 atio->tag_id, 1448 atio->init_id, 1449 scsi_status, 1450 /*data_ptr*/ data_ptr, 1451 /*dxfer_len*/ dxfer_len, 1452 /*timeout*/ 5 * 1000); 1453 1454 csio->ccb_h.flags |= CAM_UNLOCKED; 1455 csio->resid = 0; 1456 csio->ccb_h.ccb_atio = atio; 1457 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 1458 softc->ctios_sent++; 1459 mtx_unlock(mtx); 1460 xpt_action((union ccb *)csio); 1461 } else { 1462 /* 1463 * Release the CTIO. The ATIO will be sent back 1464 * down to the SIM once we send status. 1465 */ 1466 softc->ccbs_freed++; 1467 xpt_release_ccb(done_ccb); 1468 mtx_unlock(mtx); 1469 1470 /* Call the backend move done callback */ 1471 io->scsiio.be_move_done(io); 1472 } 1473 return; 1474 } 1475 break; 1476 } 1477 case XPT_IMMEDIATE_NOTIFY: { 1478 union ctl_io *io; 1479 struct ccb_immediate_notify *inot; 1480 cam_status status; 1481 int frozen; 1482 1483 inot = &done_ccb->cin1; 1484 1485 softc->inots_returned++; 1486 1487 frozen = (done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1488 1489 printf("%s: got XPT_IMMEDIATE_NOTIFY status %#x tag %#x " 1490 "seq %#x\n", __func__, inot->ccb_h.status, 1491 inot->tag_id, inot->seq_id); 1492 1493 io = ctl_alloc_io(bus_softc->port.ctl_pool_ref); 1494 if (io != NULL) { 1495 int send_ctl_io; 1496 1497 send_ctl_io = 1; 1498 1499 ctl_zero_io(io); 1500 io->io_hdr.io_type = CTL_IO_TASK; 1501 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr =done_ccb; 1502 inot->ccb_h.io_ptr = io; 1503 io->io_hdr.nexus.initid.id = inot->initiator_id; 1504 io->io_hdr.nexus.targ_port = bus_softc->port.targ_port; 1505 io->io_hdr.nexus.targ_target.id = inot->ccb_h.target_id; 1506 io->io_hdr.nexus.targ_lun = inot->ccb_h.target_lun; 1507 /* XXX KDM should this be the tag_id? */ 1508 io->taskio.tag_num = inot->seq_id; 1509 1510 status = inot->ccb_h.status & CAM_STATUS_MASK; 1511 switch (status) { 1512 case CAM_SCSI_BUS_RESET: 1513 io->taskio.task_action = CTL_TASK_BUS_RESET; 1514 break; 1515 case CAM_BDR_SENT: 1516 io->taskio.task_action = CTL_TASK_TARGET_RESET; 1517 break; 1518 case CAM_MESSAGE_RECV: 1519 switch (inot->arg) { 1520 case MSG_ABORT_TASK_SET: 1521 /* 1522 * XXX KDM this isn't currently 1523 * supported by CTL. It ends up 1524 * being a no-op. 1525 */ 1526 io->taskio.task_action = 1527 CTL_TASK_ABORT_TASK_SET; 1528 break; 1529 case MSG_TARGET_RESET: 1530 io->taskio.task_action = 1531 CTL_TASK_TARGET_RESET; 1532 break; 1533 case MSG_ABORT_TASK: 1534 io->taskio.task_action = 1535 CTL_TASK_ABORT_TASK; 1536 break; 1537 case MSG_LOGICAL_UNIT_RESET: 1538 io->taskio.task_action = 1539 CTL_TASK_LUN_RESET; 1540 break; 1541 case MSG_CLEAR_TASK_SET: 1542 /* 1543 * XXX KDM this isn't currently 1544 * supported by CTL. It ends up 1545 * being a no-op. 1546 */ 1547 io->taskio.task_action = 1548 CTL_TASK_CLEAR_TASK_SET; 1549 break; 1550 case MSG_CLEAR_ACA: 1551 io->taskio.task_action = 1552 CTL_TASK_CLEAR_ACA; 1553 break; 1554 case MSG_NOOP: 1555 send_ctl_io = 0; 1556 break; 1557 default: 1558 xpt_print(periph->path, "%s: " 1559 "unsupported message 0x%x\n", 1560 __func__, inot->arg); 1561 send_ctl_io = 0; 1562 break; 1563 } 1564 break; 1565 case CAM_REQ_ABORTED: 1566 /* 1567 * This request was sent back by the driver. 1568 * XXX KDM what do we do here? 1569 */ 1570 send_ctl_io = 0; 1571 break; 1572 case CAM_REQ_INVALID: 1573 case CAM_PROVIDE_FAIL: 1574 default: 1575 /* 1576 * We should only get here if we're talking 1577 * to a talking to a SIM that is target 1578 * capable but supports the old API. In 1579 * that case, we need to just free the CCB. 1580 * If we actually send a notify acknowledge, 1581 * it will send that back with an error as 1582 * well. 1583 */ 1584 1585 if ((status != CAM_REQ_INVALID) 1586 && (status != CAM_PROVIDE_FAIL)) 1587 xpt_print(periph->path, "%s: " 1588 "unsupported CAM status " 1589 "0x%x\n", __func__, status); 1590 1591 ctl_free_io(io); 1592 ctlfe_free_ccb(periph, done_ccb); 1593 1594 goto out; 1595 } 1596 if (send_ctl_io != 0) { 1597 ctl_queue(io); 1598 } else { 1599 ctl_free_io(io); 1600 done_ccb->ccb_h.status = CAM_REQ_INPROG; 1601 done_ccb->ccb_h.func_code = 1602 XPT_NOTIFY_ACKNOWLEDGE; 1603 xpt_action(done_ccb); 1604 } 1605 } else { 1606 xpt_print(periph->path, "%s: could not allocate " 1607 "ctl_io for immediate notify!\n", __func__); 1608 /* requeue this to the adapter */ 1609 done_ccb->ccb_h.status = CAM_REQ_INPROG; 1610 done_ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE; 1611 xpt_action(done_ccb); 1612 } 1613 1614 if (frozen != 0) { 1615 cam_release_devq(periph->path, 1616 /*relsim_flags*/ 0, 1617 /*opening reduction*/ 0, 1618 /*timeout*/ 0, 1619 /*getcount_only*/ 0); 1620 } 1621 break; 1622 } 1623 case XPT_NOTIFY_ACKNOWLEDGE: 1624 /* 1625 * Queue this back down to the SIM as an immediate notify. 1626 */ 1627 done_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY; 1628 xpt_action(done_ccb); 1629 softc->inots_sent++; 1630 break; 1631 case XPT_SET_SIM_KNOB: 1632 case XPT_GET_SIM_KNOB: 1633 break; 1634 default: 1635 panic("%s: unexpected CCB type %#x", __func__, 1636 done_ccb->ccb_h.func_code); 1637 break; 1638 } 1639 1640out: 1641 mtx_unlock(mtx); 1642} 1643 1644static void 1645ctlfe_onoffline(void *arg, int online) 1646{ 1647 struct ctlfe_softc *bus_softc; 1648 union ccb *ccb; 1649 cam_status status; 1650 struct cam_path *path; 1651 int set_wwnn; 1652 1653 bus_softc = (struct ctlfe_softc *)arg; 1654 1655 set_wwnn = 0; 1656 1657 status = xpt_create_path(&path, /*periph*/ NULL, bus_softc->path_id, 1658 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 1659 if (status != CAM_REQ_CMP) { 1660 printf("%s: unable to create path!\n", __func__); 1661 return; 1662 } 1663 ccb = (union ccb *)malloc(sizeof(*ccb), M_TEMP, M_NOWAIT | M_ZERO); 1664 if (ccb == NULL) { 1665 printf("%s: unable to malloc CCB!\n", __func__); 1666 xpt_free_path(path); 1667 return; 1668 } 1669 xpt_setup_ccb(&ccb->ccb_h, path, CAM_PRIORITY_NONE); 1670 1671 /* 1672 * Copan WWN format: 1673 * 1674 * Bits 63-60: 0x5 NAA, IEEE registered name 1675 * Bits 59-36: 0x000ED5 IEEE Company name assigned to Copan 1676 * Bits 35-12: Copan SSN (Sequential Serial Number) 1677 * Bits 11-8: Type of port: 1678 * 1 == N-Port 1679 * 2 == F-Port 1680 * 3 == NL-Port 1681 * Bits 7-0: 0 == Node Name, >0 == Port Number 1682 */ 1683 1684 if (online != 0) { 1685 1686 ccb->ccb_h.func_code = XPT_GET_SIM_KNOB; 1687 1688 1689 xpt_action(ccb); 1690 1691 1692 if ((ccb->knob.xport_specific.valid & KNOB_VALID_ADDRESS) != 0){ 1693#ifdef RANDOM_WWNN 1694 uint64_t random_bits; 1695#endif 1696 1697 printf("%s: %s current WWNN %#jx\n", __func__, 1698 bus_softc->port_name, 1699 ccb->knob.xport_specific.fc.wwnn); 1700 printf("%s: %s current WWPN %#jx\n", __func__, 1701 bus_softc->port_name, 1702 ccb->knob.xport_specific.fc.wwpn); 1703 1704#ifdef RANDOM_WWNN 1705 arc4rand(&random_bits, sizeof(random_bits), 0); 1706#endif 1707 1708 /* 1709 * XXX KDM this is a bit of a kludge for now. We 1710 * take the current WWNN/WWPN from the card, and 1711 * replace the company identifier and the NL-Port 1712 * indicator and the port number (for the WWPN). 1713 * This should be replaced later with ddb_GetWWNN, 1714 * or possibly a more centralized scheme. (It 1715 * would be nice to have the WWNN/WWPN for each 1716 * port stored in the ctl_port structure.) 1717 */ 1718#ifdef RANDOM_WWNN 1719 ccb->knob.xport_specific.fc.wwnn = 1720 (random_bits & 1721 0x0000000fffffff00ULL) | 1722 /* Company ID */ 0x5000ED5000000000ULL | 1723 /* NL-Port */ 0x0300; 1724 ccb->knob.xport_specific.fc.wwpn = 1725 (random_bits & 1726 0x0000000fffffff00ULL) | 1727 /* Company ID */ 0x5000ED5000000000ULL | 1728 /* NL-Port */ 0x3000 | 1729 /* Port Num */ (bus_softc->port.targ_port & 0xff); 1730 1731 /* 1732 * This is a bit of an API break/reversal, but if 1733 * we're doing the random WWNN that's a little 1734 * different anyway. So record what we're actually 1735 * using with the frontend code so it's reported 1736 * accurately. 1737 */ 1738 ctl_port_set_wwns(&bus_softc->port, 1739 true, ccb->knob.xport_specific.fc.wwnn, 1740 true, ccb->knob.xport_specific.fc.wwpn); 1741 set_wwnn = 1; 1742#else /* RANDOM_WWNN */ 1743 /* 1744 * If the user has specified a WWNN/WWPN, send them 1745 * down to the SIM. Otherwise, record what the SIM 1746 * has reported. 1747 */ 1748 if ((bus_softc->port.wwnn != 0) 1749 && (bus_softc->port.wwpn != 0)) { 1750 ccb->knob.xport_specific.fc.wwnn = 1751 bus_softc->port.wwnn; 1752 ccb->knob.xport_specific.fc.wwpn = 1753 bus_softc->port.wwpn; 1754 set_wwnn = 1; 1755 } else { 1756 ctl_port_set_wwns(&bus_softc->port, 1757 true, ccb->knob.xport_specific.fc.wwnn, 1758 true, ccb->knob.xport_specific.fc.wwpn); 1759 } 1760#endif /* RANDOM_WWNN */ 1761 1762 1763 if (set_wwnn != 0) { 1764 printf("%s: %s new WWNN %#jx\n", __func__, 1765 bus_softc->port_name, 1766 ccb->knob.xport_specific.fc.wwnn); 1767 printf("%s: %s new WWPN %#jx\n", __func__, 1768 bus_softc->port_name, 1769 ccb->knob.xport_specific.fc.wwpn); 1770 } 1771 } else { 1772 printf("%s: %s has no valid WWNN/WWPN\n", __func__, 1773 bus_softc->port_name); 1774 } 1775 } 1776 ccb->ccb_h.func_code = XPT_SET_SIM_KNOB; 1777 ccb->knob.xport_specific.valid = KNOB_VALID_ROLE; 1778 if (set_wwnn != 0) 1779 ccb->knob.xport_specific.valid |= KNOB_VALID_ADDRESS; 1780 1781 if (online != 0) 1782 ccb->knob.xport_specific.fc.role = KNOB_ROLE_TARGET; 1783 else 1784 ccb->knob.xport_specific.fc.role = KNOB_ROLE_NONE; 1785 1786 xpt_action(ccb); 1787 1788 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1789 printf("%s: SIM %s (path id %d) target %s failed with " 1790 "status %#x\n", 1791 __func__, bus_softc->port_name, bus_softc->path_id, 1792 (online != 0) ? "enable" : "disable", 1793 ccb->ccb_h.status); 1794 } else { 1795 printf("%s: SIM %s (path id %d) target %s succeeded\n", 1796 __func__, bus_softc->port_name, bus_softc->path_id, 1797 (online != 0) ? "enable" : "disable"); 1798 } 1799 1800 xpt_free_path(path); 1801 1802 free(ccb, M_TEMP); 1803 1804 return; 1805} 1806 1807static void 1808ctlfe_online(void *arg) 1809{ 1810 struct ctlfe_softc *bus_softc; 1811 struct cam_path *path; 1812 cam_status status; 1813 struct ctlfe_lun_softc *lun_softc; 1814 1815 bus_softc = (struct ctlfe_softc *)arg; 1816 1817 /* 1818 * Create the wildcard LUN before bringing the port online. 1819 */ 1820 status = xpt_create_path(&path, /*periph*/ NULL, 1821 bus_softc->path_id, CAM_TARGET_WILDCARD, 1822 CAM_LUN_WILDCARD); 1823 if (status != CAM_REQ_CMP) { 1824 printf("%s: unable to create path for wildcard periph\n", 1825 __func__); 1826 return; 1827 } 1828 1829 lun_softc = malloc(sizeof(*lun_softc), M_CTLFE, 1830 M_NOWAIT | M_ZERO); 1831 if (lun_softc == NULL) { 1832 xpt_print(path, "%s: unable to allocate softc for " 1833 "wildcard periph\n", __func__); 1834 xpt_free_path(path); 1835 return; 1836 } 1837 1838 xpt_path_lock(path); 1839 lun_softc->parent_softc = bus_softc; 1840 lun_softc->flags |= CTLFE_LUN_WILDCARD; 1841 1842 mtx_lock(&bus_softc->lun_softc_mtx); 1843 STAILQ_INSERT_TAIL(&bus_softc->lun_softc_list, lun_softc, links); 1844 mtx_unlock(&bus_softc->lun_softc_mtx); 1845 1846 status = cam_periph_alloc(ctlferegister, 1847 ctlfeoninvalidate, 1848 ctlfecleanup, 1849 ctlfestart, 1850 "ctl", 1851 CAM_PERIPH_BIO, 1852 path, 1853 ctlfeasync, 1854 0, 1855 lun_softc); 1856 1857 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1858 const struct cam_status_entry *entry; 1859 1860 entry = cam_fetch_status_entry(status); 1861 1862 printf("%s: CAM error %s (%#x) returned from " 1863 "cam_periph_alloc()\n", __func__, (entry != NULL) ? 1864 entry->status_text : "Unknown", status); 1865 } 1866 1867 ctlfe_onoffline(arg, /*online*/ 1); 1868 1869 xpt_path_unlock(path); 1870 xpt_free_path(path); 1871} 1872 1873static void 1874ctlfe_offline(void *arg) 1875{ 1876 struct ctlfe_softc *bus_softc; 1877 struct cam_path *path; 1878 cam_status status; 1879 struct cam_periph *periph; 1880 1881 bus_softc = (struct ctlfe_softc *)arg; 1882 1883 /* 1884 * Disable the wildcard LUN for this port now that we have taken 1885 * the port offline. 1886 */ 1887 status = xpt_create_path(&path, /*periph*/ NULL, 1888 bus_softc->path_id, CAM_TARGET_WILDCARD, 1889 CAM_LUN_WILDCARD); 1890 if (status != CAM_REQ_CMP) { 1891 printf("%s: unable to create path for wildcard periph\n", 1892 __func__); 1893 return; 1894 } 1895 1896 xpt_path_lock(path); 1897 1898 ctlfe_onoffline(arg, /*online*/ 0); 1899 1900 if ((periph = cam_periph_find(path, "ctl")) != NULL) 1901 cam_periph_invalidate(periph); 1902 1903 xpt_path_unlock(path); 1904 xpt_free_path(path); 1905} 1906 1907/* 1908 * This will get called to enable a LUN on every bus that is attached to 1909 * CTL. So we only need to create a path/periph for this particular bus. 1910 */ 1911static int 1912ctlfe_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1913{ 1914 struct ctlfe_softc *bus_softc; 1915 struct ctlfe_lun_softc *softc; 1916 struct cam_path *path; 1917 struct cam_periph *periph; 1918 cam_status status; 1919 1920 bus_softc = (struct ctlfe_softc *)arg; 1921 1922 status = xpt_create_path(&path, /*periph*/ NULL, 1923 bus_softc->path_id, 1924 targ_id.id, lun_id); 1925 /* XXX KDM need some way to return status to CTL here? */ 1926 if (status != CAM_REQ_CMP) { 1927 printf("%s: could not create path, status %#x\n", __func__, 1928 status); 1929 return (1); 1930 } 1931 1932 softc = malloc(sizeof(*softc), M_CTLFE, M_WAITOK | M_ZERO); 1933 xpt_path_lock(path); 1934 periph = cam_periph_find(path, "ctl"); 1935 if (periph != NULL) { 1936 /* We've already got a periph, no need to alloc a new one. */ 1937 xpt_path_unlock(path); 1938 xpt_free_path(path); 1939 free(softc, M_CTLFE); 1940 return (0); 1941 } 1942 1943 softc->parent_softc = bus_softc; 1944 mtx_lock(&bus_softc->lun_softc_mtx); 1945 STAILQ_INSERT_TAIL(&bus_softc->lun_softc_list, softc, links); 1946 mtx_unlock(&bus_softc->lun_softc_mtx); 1947 1948 status = cam_periph_alloc(ctlferegister, 1949 ctlfeoninvalidate, 1950 ctlfecleanup, 1951 ctlfestart, 1952 "ctl", 1953 CAM_PERIPH_BIO, 1954 path, 1955 ctlfeasync, 1956 0, 1957 softc); 1958 1959 xpt_path_unlock(path); 1960 xpt_free_path(path); 1961 return (0); 1962} 1963 1964/* 1965 * This will get called when the user removes a LUN to disable that LUN 1966 * on every bus that is attached to CTL. 1967 */ 1968static int 1969ctlfe_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1970{ 1971 struct ctlfe_softc *softc; 1972 struct ctlfe_lun_softc *lun_softc; 1973 1974 softc = (struct ctlfe_softc *)arg; 1975 1976 mtx_lock(&softc->lun_softc_mtx); 1977 STAILQ_FOREACH(lun_softc, &softc->lun_softc_list, links) { 1978 struct cam_path *path; 1979 1980 path = lun_softc->periph->path; 1981 1982 if ((xpt_path_target_id(path) == targ_id.id) 1983 && (xpt_path_lun_id(path) == lun_id)) { 1984 break; 1985 } 1986 } 1987 if (lun_softc == NULL) { 1988 mtx_unlock(&softc->lun_softc_mtx); 1989 printf("%s: can't find target %d lun %d\n", __func__, 1990 targ_id.id, lun_id); 1991 return (1); 1992 } 1993 cam_periph_acquire(lun_softc->periph); 1994 mtx_unlock(&softc->lun_softc_mtx); 1995 1996 cam_periph_lock(lun_softc->periph); 1997 cam_periph_invalidate(lun_softc->periph); 1998 cam_periph_unlock(lun_softc->periph); 1999 cam_periph_release(lun_softc->periph); 2000 return (0); 2001} 2002 2003static void 2004ctlfe_dump_sim(struct cam_sim *sim) 2005{ 2006 2007 printf("%s%d: max tagged openings: %d, max dev openings: %d\n", 2008 sim->sim_name, sim->unit_number, 2009 sim->max_tagged_dev_openings, sim->max_dev_openings); 2010 printf("\n"); 2011} 2012 2013/* 2014 * Assumes that the SIM lock is held. 2015 */ 2016static void 2017ctlfe_dump_queue(struct ctlfe_lun_softc *softc) 2018{ 2019 struct ccb_hdr *hdr; 2020 struct cam_periph *periph; 2021 int num_items; 2022 2023 periph = softc->periph; 2024 num_items = 0; 2025 2026 TAILQ_FOREACH(hdr, &softc->work_queue, periph_links.tqe) { 2027 union ctl_io *io; 2028 2029 io = hdr->io_ptr; 2030 2031 num_items++; 2032 2033 /* 2034 * This can happen when we get an ATIO but can't allocate 2035 * a ctl_io. See the XPT_ACCEPT_TARGET_IO case in ctlfedone(). 2036 */ 2037 if (io == NULL) { 2038 struct ccb_scsiio *csio; 2039 2040 csio = (struct ccb_scsiio *)hdr; 2041 2042 xpt_print(periph->path, "CCB %#x ctl_io allocation " 2043 "failed\n", csio->tag_id); 2044 continue; 2045 } 2046 2047 /* 2048 * Only regular SCSI I/O is put on the work 2049 * queue, so we can print sense here. There may be no 2050 * sense if it's no the queue for a DMA, but this serves to 2051 * print out the CCB as well. 2052 * 2053 * XXX KDM switch this over to scsi_sense_print() when 2054 * CTL is merged in with CAM. 2055 */ 2056 ctl_io_error_print(io, NULL); 2057 2058 /* 2059 * We're sending status back to the 2060 * initiator, so we're on the queue waiting 2061 * for a CTIO to do that. 2062 */ 2063 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) 2064 continue; 2065 2066 /* 2067 * Otherwise, we're on the queue waiting to 2068 * do a data transfer. 2069 */ 2070 xpt_print(periph->path, "Total %u, Current %u, Resid %u\n", 2071 io->scsiio.kern_total_len, io->scsiio.kern_data_len, 2072 io->scsiio.kern_data_resid); 2073 } 2074 2075 xpt_print(periph->path, "%d requests total waiting for CCBs\n", 2076 num_items); 2077 xpt_print(periph->path, "%ju CCBs outstanding (%ju allocated, %ju " 2078 "freed)\n", (uintmax_t)(softc->ccbs_alloced - 2079 softc->ccbs_freed), (uintmax_t)softc->ccbs_alloced, 2080 (uintmax_t)softc->ccbs_freed); 2081 xpt_print(periph->path, "%ju CTIOs outstanding (%ju sent, %ju " 2082 "returned\n", (uintmax_t)(softc->ctios_sent - 2083 softc->ctios_returned), softc->ctios_sent, 2084 softc->ctios_returned); 2085} 2086 2087/* 2088 * This function is called when we fail to get a CCB for a DMA or status return 2089 * to the initiator within the specified time period. 2090 * 2091 * The callout code should insure that we hold the sim mutex here. 2092 */ 2093static void 2094ctlfe_dma_timeout(void *arg) 2095{ 2096 struct ctlfe_lun_softc *softc; 2097 struct cam_periph *periph; 2098 struct cam_sim *sim; 2099 int num_queued; 2100 2101 softc = (struct ctlfe_lun_softc *)arg; 2102 periph = softc->periph; 2103 sim = xpt_path_sim(periph->path); 2104 num_queued = 0; 2105 2106 /* 2107 * Nothing to do... 2108 */ 2109 if (TAILQ_FIRST(&softc->work_queue) == NULL) { 2110 xpt_print(periph->path, "TIMEOUT triggered after %d " 2111 "seconds, but nothing on work queue??\n", 2112 CTLFE_DMA_TIMEOUT); 2113 return; 2114 } 2115 2116 xpt_print(periph->path, "TIMEOUT (%d seconds) waiting for DMA to " 2117 "start\n", CTLFE_DMA_TIMEOUT); 2118 2119 ctlfe_dump_queue(softc); 2120 2121 ctlfe_dump_sim(sim); 2122 2123 xpt_print(periph->path, "calling xpt_schedule() to attempt to " 2124 "unstick our queue\n"); 2125 2126 xpt_schedule(periph, /*priority*/ 1); 2127 2128 xpt_print(periph->path, "xpt_schedule() call complete\n"); 2129} 2130 2131/* 2132 * Datamove/done routine called by CTL. Put ourselves on the queue to 2133 * receive a CCB from CAM so we can queue the continue I/O request down 2134 * to the adapter. 2135 */ 2136static void 2137ctlfe_datamove_done(union ctl_io *io) 2138{ 2139 union ccb *ccb; 2140 struct cam_periph *periph; 2141 struct ctlfe_lun_softc *softc; 2142 2143 ccb = io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2144 2145 periph = xpt_path_periph(ccb->ccb_h.path); 2146 cam_periph_lock(periph); 2147 2148 softc = (struct ctlfe_lun_softc *)periph->softc; 2149 2150 if (io->io_hdr.io_type == CTL_IO_TASK) { 2151 /* 2152 * Task management commands don't require any further 2153 * communication back to the adapter. Requeue the CCB 2154 * to the adapter, and free the CTL I/O. 2155 */ 2156 xpt_print(ccb->ccb_h.path, "%s: returning task I/O " 2157 "tag %#x seq %#x\n", __func__, 2158 ccb->cin1.tag_id, ccb->cin1.seq_id); 2159 /* 2160 * Send the notify acknowledge down to the SIM, to let it 2161 * know we processed the task management command. 2162 */ 2163 ccb->ccb_h.status = CAM_REQ_INPROG; 2164 ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE; 2165 xpt_action(ccb); 2166 ctl_free_io(io); 2167 } else { 2168 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) 2169 io->io_hdr.flags |= CTL_FLAG_STATUS_QUEUED; 2170 else 2171 io->io_hdr.flags |= CTL_FLAG_DMA_QUEUED; 2172 2173 TAILQ_INSERT_TAIL(&softc->work_queue, &ccb->ccb_h, 2174 periph_links.tqe); 2175 2176 /* 2177 * Reset the timeout for our latest active DMA. 2178 */ 2179 callout_reset(&softc->dma_callout, 2180 CTLFE_DMA_TIMEOUT * hz, 2181 ctlfe_dma_timeout, softc); 2182 /* 2183 * Ask for the CAM transport layer to send us a CCB to do 2184 * the DMA or send status, unless ctlfe_dma_enabled is set 2185 * to 0. 2186 */ 2187 if (ctlfe_dma_enabled != 0) 2188 xpt_schedule(periph, /*priority*/ 1); 2189 } 2190 2191 cam_periph_unlock(periph); 2192} 2193 2194static void 2195ctlfe_dump(void) 2196{ 2197 struct ctlfe_softc *bus_softc; 2198 2199 STAILQ_FOREACH(bus_softc, &ctlfe_softc_list, links) { 2200 struct ctlfe_lun_softc *lun_softc; 2201 2202 ctlfe_dump_sim(bus_softc->sim); 2203 2204 STAILQ_FOREACH(lun_softc, &bus_softc->lun_softc_list, links) { 2205 ctlfe_dump_queue(lun_softc); 2206 } 2207 } 2208} 2209