/*- * Copyright (c) 2009 Silicon Graphics International Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * substantially similar to the "NO WARRANTY" disclaimer below * ("Disclaimer") and any redistribution must be conditioned upon * including a substantially similar Disclaimer requirement for further * binary redistribution. * * NO WARRANTY * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. * * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl_frontend_cam_sim.c#4 $ */ /* * CTL frontend to CAM SIM interface. This allows access to CTL LUNs via * the da(4) and pass(4) drivers from inside the system. * * Author: Ken Merry */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define io_ptr spriv_ptr1 struct cfcs_io { union ccb *ccb; }; struct cfcs_softc { struct ctl_frontend fe; char port_name[32]; struct cam_sim *sim; struct cam_devq *devq; struct cam_path *path; struct mtx lock; char lock_desc[32]; uint64_t wwnn; uint64_t wwpn; uint32_t cur_tag_num; int online; }; /* * We can't handle CCBs with these flags. For the most part, we just don't * handle physical addresses yet. That would require mapping things in * order to do the copy. */ #define CFCS_BAD_CCB_FLAGS (CAM_DATA_PHYS | CAM_SG_LIST_PHYS | \ CAM_MSG_BUF_PHYS | CAM_SNS_BUF_PHYS | CAM_CDB_PHYS | CAM_SENSE_PTR |\ CAM_SENSE_PHYS) int cfcs_init(void); void cfcs_shutdown(void); static void cfcs_poll(struct cam_sim *sim); static void cfcs_online(void *arg); static void cfcs_offline(void *arg); static int cfcs_targ_enable(void *arg, struct ctl_id targ_id); static int cfcs_targ_disable(void *arg, struct ctl_id targ_id); static int cfcs_lun_enable(void *arg, struct ctl_id target_id, int lun_id); static int cfcs_lun_disable(void *arg, struct ctl_id target_id, int lun_id); static void cfcs_datamove(union ctl_io *io); static void cfcs_done(union ctl_io *io); void cfcs_action(struct cam_sim *sim, union ccb *ccb); static void cfcs_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg); struct cfcs_softc cfcs_softc; /* * This is primarly intended to allow for error injection to test the CAM * sense data and sense residual handling code. This sets the maximum * amount of SCSI sense data that we will report to CAM. */ static int cfcs_max_sense = sizeof(struct scsi_sense_data); extern int ctl_disable; SYSINIT(cfcs_init, SI_SUB_CONFIGURE, SI_ORDER_FOURTH, cfcs_init, NULL); SYSCTL_NODE(_kern_cam, OID_AUTO, ctl2cam, CTLFLAG_RD, 0, "CAM Target Layer SIM frontend"); SYSCTL_INT(_kern_cam_ctl2cam, OID_AUTO, max_sense, CTLFLAG_RW, &cfcs_max_sense, 0, "Maximum sense data size"); int cfcs_init(void) { struct cfcs_softc *softc; struct ccb_setasync csa; struct ctl_frontend *fe; #ifdef NEEDTOPORT char wwnn[8]; #endif int retval; /* Don't continue if CTL is disabled */ if (ctl_disable != 0) return (0); softc = &cfcs_softc; retval = 0; bzero(softc, sizeof(*softc)); sprintf(softc->lock_desc, "ctl2cam"); mtx_init(&softc->lock, softc->lock_desc, NULL, MTX_DEF); fe = &softc->fe; fe->port_type = CTL_PORT_INTERNAL; /* XXX KDM what should the real number be here? */ fe->num_requested_ctl_io = 4096; snprintf(softc->port_name, sizeof(softc->port_name), "ctl2cam"); fe->port_name = softc->port_name; fe->port_online = cfcs_online; fe->port_offline = cfcs_offline; fe->onoff_arg = softc; fe->targ_enable = cfcs_targ_enable; fe->targ_disable = cfcs_targ_disable; fe->lun_enable = cfcs_lun_enable; fe->lun_disable = cfcs_lun_disable; fe->targ_lun_arg = softc; fe->fe_datamove = cfcs_datamove; fe->fe_done = cfcs_done; /* XXX KDM what should we report here? */ /* XXX These should probably be fetched from CTL. */ fe->max_targets = 1; fe->max_target_id = 15; retval = ctl_frontend_register(fe, /*master_SC*/ 1); if (retval != 0) { printf("%s: ctl_frontend_register() failed with error %d!\n", __func__, retval); mtx_destroy(&softc->lock); return (1); } /* * Get the WWNN out of the database, and create a WWPN as well. */ #ifdef NEEDTOPORT ddb_GetWWNN((char *)wwnn); softc->wwnn = be64dec(wwnn); softc->wwpn = softc->wwnn + (softc->fe.targ_port & 0xff); #endif /* * If the CTL frontend didn't tell us what our WWNN/WWPN is, go * ahead and set something random. */ if (fe->wwnn == 0) { uint64_t random_bits; arc4rand(&random_bits, sizeof(random_bits), 0); softc->wwnn = (random_bits & 0x0000000fffffff00ULL) | /* Company ID */ 0x5000000000000000ULL | /* NL-Port */ 0x0300; softc->wwpn = softc->wwnn + fe->targ_port + 1; fe->wwnn = softc->wwnn; fe->wwpn = softc->wwpn; } else { softc->wwnn = fe->wwnn; softc->wwpn = fe->wwpn; } mtx_lock(&softc->lock); softc->devq = cam_simq_alloc(fe->num_requested_ctl_io); if (softc->devq == NULL) { printf("%s: error allocating devq\n", __func__); retval = ENOMEM; goto bailout; } softc->sim = cam_sim_alloc(cfcs_action, cfcs_poll, softc->port_name, softc, /*unit*/ 0, &softc->lock, 1, fe->num_requested_ctl_io, softc->devq); if (softc->sim == NULL) { printf("%s: error allocating SIM\n", __func__); retval = ENOMEM; goto bailout; } if (xpt_bus_register(softc->sim, NULL, 0) != CAM_SUCCESS) { printf("%s: error registering SIM\n", __func__); retval = ENOMEM; goto bailout; } if (xpt_create_path(&softc->path, /*periph*/NULL, cam_sim_path(softc->sim), CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { printf("%s: error creating path\n", __func__); xpt_bus_deregister(cam_sim_path(softc->sim)); retval = 1; goto bailout; } xpt_setup_ccb(&csa.ccb_h, softc->path, CAM_PRIORITY_NONE); csa.ccb_h.func_code = XPT_SASYNC_CB; csa.event_enable = AC_LOST_DEVICE; csa.callback = cfcs_async; csa.callback_arg = softc->sim; xpt_action((union ccb *)&csa); mtx_unlock(&softc->lock); return (retval); bailout: if (softc->sim) cam_sim_free(softc->sim, /*free_devq*/ TRUE); else if (softc->devq) cam_simq_free(softc->devq); mtx_unlock(&softc->lock); mtx_destroy(&softc->lock); return (retval); } static void cfcs_poll(struct cam_sim *sim) { } void cfcs_shutdown(void) { } static void cfcs_onoffline(void *arg, int online) { struct cfcs_softc *softc; union ccb *ccb; softc = (struct cfcs_softc *)arg; mtx_lock(&softc->lock); softc->online = online; ccb = xpt_alloc_ccb_nowait(); if (ccb == NULL) { printf("%s: unable to allocate CCB for rescan\n", __func__); goto bailout; } if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, cam_sim_path(softc->sim), CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { printf("%s: can't allocate path for rescan\n", __func__); xpt_free_ccb(ccb); goto bailout; } xpt_rescan(ccb); bailout: mtx_unlock(&softc->lock); } static void cfcs_online(void *arg) { cfcs_onoffline(arg, /*online*/ 1); } static void cfcs_offline(void *arg) { cfcs_onoffline(arg, /*online*/ 0); } static int cfcs_targ_enable(void *arg, struct ctl_id targ_id) { return (0); } static int cfcs_targ_disable(void *arg, struct ctl_id targ_id) { return (0); } static int cfcs_lun_enable(void *arg, struct ctl_id target_id, int lun_id) { return (0); } static int cfcs_lun_disable(void *arg, struct ctl_id target_id, int lun_id) { return (0); } /* * This function is very similar to ctl_ioctl_do_datamove(). Is there a * way to combine the functionality? * * XXX KDM may need to move this into a thread. We're doing a bcopy in the * caller's context, which will usually be the backend. That may not be a * good thing. */ static void cfcs_datamove(union ctl_io *io) { union ccb *ccb; bus_dma_segment_t cam_sg_entry, *cam_sglist; struct ctl_sg_entry ctl_sg_entry, *ctl_sglist; int cam_sg_count, ctl_sg_count, cam_sg_start; int cam_sg_offset; int len_to_copy, len_copied; int ctl_watermark, cam_watermark; int i, j; cam_sg_offset = 0; cam_sg_start = 0; ccb = io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; /* * Note that we have a check in cfcs_action() to make sure that any * CCBs with "bad" flags are returned with CAM_REQ_INVALID. This * is just to make sure no one removes that check without updating * this code to provide the additional functionality necessary to * support those modes of operation. */ KASSERT(((ccb->ccb_h.flags & CFCS_BAD_CCB_FLAGS) == 0), ("invalid " "CAM flags %#x", (ccb->ccb_h.flags & CFCS_BAD_CCB_FLAGS))); /* * Simplify things on both sides by putting single buffers into a * single entry S/G list. */ if (ccb->ccb_h.flags & CAM_SCATTER_VALID) { if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS) { /* We should filter this out on entry */ panic("%s: physical S/G list, should not get here", __func__); } else { int len_seen; cam_sglist = (bus_dma_segment_t *)ccb->csio.data_ptr; cam_sg_count = ccb->csio.sglist_cnt; for (i = 0, len_seen = 0; i < cam_sg_count; i++) { if ((len_seen + cam_sglist[i].ds_len) >= io->scsiio.kern_rel_offset) { cam_sg_start = i; cam_sg_offset = io->scsiio.kern_rel_offset - len_seen; break; } len_seen += cam_sglist[i].ds_len; } } } else { cam_sglist = &cam_sg_entry; cam_sglist[0].ds_len = ccb->csio.dxfer_len; cam_sglist[0].ds_addr = (bus_addr_t)ccb->csio.data_ptr; cam_sg_count = 1; cam_sg_start = 0; cam_sg_offset = io->scsiio.kern_rel_offset; } if (io->scsiio.kern_sg_entries > 0) { ctl_sglist = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; ctl_sg_count = io->scsiio.kern_sg_entries; } else { ctl_sglist = &ctl_sg_entry; ctl_sglist->addr = io->scsiio.kern_data_ptr; ctl_sglist->len = io->scsiio.kern_data_len; ctl_sg_count = 1; } ctl_watermark = 0; cam_watermark = cam_sg_offset; len_copied = 0; for (i = cam_sg_start, j = 0; i < cam_sg_count && j < ctl_sg_count;) { uint8_t *cam_ptr, *ctl_ptr; len_to_copy = ctl_min(cam_sglist[i].ds_len - cam_watermark, ctl_sglist[j].len - ctl_watermark); cam_ptr = (uint8_t *)cam_sglist[i].ds_addr; cam_ptr = cam_ptr + cam_watermark; if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { /* * XXX KDM fix this! */ panic("need to implement bus address support"); #if 0 kern_ptr = bus_to_virt(kern_sglist[j].addr); #endif } else ctl_ptr = (uint8_t *)ctl_sglist[j].addr; ctl_ptr = ctl_ptr + ctl_watermark; ctl_watermark += len_to_copy; cam_watermark += len_to_copy; if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) { CTL_DEBUG_PRINT(("%s: copying %d bytes to CAM\n", __func__, len_to_copy)); CTL_DEBUG_PRINT(("%s: from %p to %p\n", ctl_ptr, __func__, cam_ptr)); bcopy(ctl_ptr, cam_ptr, len_to_copy); } else { CTL_DEBUG_PRINT(("%s: copying %d bytes from CAM\n", __func__, len_to_copy)); CTL_DEBUG_PRINT(("%s: from %p to %p\n", cam_ptr, __func__, ctl_ptr)); bcopy(cam_ptr, ctl_ptr, len_to_copy); } len_copied += len_to_copy; if (cam_sglist[i].ds_len == cam_watermark) { i++; cam_watermark = 0; } if (ctl_sglist[j].len == ctl_watermark) { j++; ctl_watermark = 0; } } io->scsiio.ext_data_filled += len_copied; io->scsiio.be_move_done(io); } static void cfcs_done(union ctl_io *io) { union ccb *ccb; struct cfcs_softc *softc; struct cam_sim *sim; ccb = io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; sim = xpt_path_sim(ccb->ccb_h.path); softc = (struct cfcs_softc *)cam_sim_softc(sim); /* * At this point we should have status. If we don't, that's a bug. */ KASSERT(((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE), ("invalid CTL status %#x", io->io_hdr.status)); /* * Translate CTL status to CAM status. */ switch (io->io_hdr.status & CTL_STATUS_MASK) { case CTL_SUCCESS: ccb->ccb_h.status = CAM_REQ_CMP; break; case CTL_SCSI_ERROR: ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; ccb->csio.scsi_status = io->scsiio.scsi_status; bcopy(&io->scsiio.sense_data, &ccb->csio.sense_data, min(io->scsiio.sense_len, ccb->csio.sense_len)); if (ccb->csio.sense_len > io->scsiio.sense_len) ccb->csio.sense_resid = ccb->csio.sense_len - io->scsiio.sense_len; else ccb->csio.sense_resid = 0; if ((ccb->csio.sense_len - ccb->csio.sense_resid) > cfcs_max_sense) { ccb->csio.sense_resid = ccb->csio.sense_len - cfcs_max_sense; } break; case CTL_CMD_ABORTED: ccb->ccb_h.status = CAM_REQ_ABORTED; break; case CTL_ERROR: default: ccb->ccb_h.status = CAM_REQ_CMP_ERR; break; } mtx_lock(sim->mtx); xpt_done(ccb); mtx_unlock(sim->mtx); ctl_free_io(io); } void cfcs_action(struct cam_sim *sim, union ccb *ccb) { struct cfcs_softc *softc; int err; softc = (struct cfcs_softc *)cam_sim_softc(sim); mtx_assert(&softc->lock, MA_OWNED); switch (ccb->ccb_h.func_code) { case XPT_SCSI_IO: { union ctl_io *io; struct ccb_scsiio *csio; csio = &ccb->csio; /* * Catch CCB flags, like physical address flags, that * indicate situations we currently can't handle. */ if (ccb->ccb_h.flags & CFCS_BAD_CCB_FLAGS) { ccb->ccb_h.status = CAM_REQ_INVALID; printf("%s: bad CCB flags %#x (all flags %#x)\n", __func__, ccb->ccb_h.flags & CFCS_BAD_CCB_FLAGS, ccb->ccb_h.flags); xpt_done(ccb); return; } /* * If we aren't online, there are no devices to see. */ if (softc->online == 0) { ccb->ccb_h.status = CAM_DEV_NOT_THERE; xpt_done(ccb); return; } io = ctl_alloc_io(softc->fe.ctl_pool_ref); if (io == NULL) { printf("%s: can't allocate ctl_io\n", __func__); ccb->ccb_h.status = CAM_BUSY | CAM_DEV_QFRZN; xpt_freeze_devq(ccb->ccb_h.path, 1); xpt_done(ccb); return; } ctl_zero_io(io); /* Save pointers on both sides */ io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ccb; ccb->ccb_h.io_ptr = io; /* * Only SCSI I/O comes down this path, resets, etc. come * down via the XPT_RESET_BUS/LUN CCBs below. */ io->io_hdr.io_type = CTL_IO_SCSI; io->io_hdr.nexus.initid.id = 1; io->io_hdr.nexus.targ_port = softc->fe.targ_port; /* * XXX KDM how do we handle target IDs? */ io->io_hdr.nexus.targ_target.id = ccb->ccb_h.target_id; io->io_hdr.nexus.targ_lun = ccb->ccb_h.target_lun; /* * This tag scheme isn't the best, since we could in theory * have a very long-lived I/O and tag collision, especially * in a high I/O environment. But it should work well * enough for now. Since we're using unsigned ints, * they'll just wrap around. */ io->scsiio.tag_num = softc->cur_tag_num++; csio->tag_id = io->scsiio.tag_num; switch (csio->tag_action) { case CAM_TAG_ACTION_NONE: io->scsiio.tag_type = CTL_TAG_UNTAGGED; break; case MSG_SIMPLE_TASK: io->scsiio.tag_type = CTL_TAG_SIMPLE; break; case MSG_HEAD_OF_QUEUE_TASK: io->scsiio.tag_type = CTL_TAG_HEAD_OF_QUEUE; break; case MSG_ORDERED_TASK: io->scsiio.tag_type = CTL_TAG_ORDERED; break; case MSG_ACA_TASK: io->scsiio.tag_type = CTL_TAG_ACA; break; default: io->scsiio.tag_type = CTL_TAG_UNTAGGED; printf("%s: unhandled tag type %#x!!\n", __func__, csio->tag_action); break; } if (csio->cdb_len > sizeof(io->scsiio.cdb)) { printf("%s: WARNING: CDB len %d > ctl_io space %zd\n", __func__, csio->cdb_len, sizeof(io->scsiio.cdb)); } io->scsiio.cdb_len = min(csio->cdb_len, sizeof(io->scsiio.cdb)); bcopy(csio->cdb_io.cdb_bytes, io->scsiio.cdb, io->scsiio.cdb_len); err = ctl_queue(io); if (err != CTL_RETVAL_COMPLETE) { printf("%s: func %d: error %d returned by " "ctl_queue()!\n", __func__, ccb->ccb_h.func_code, err); ctl_free_io(io); } else { ccb->ccb_h.status |= CAM_SIM_QUEUED; } break; } case XPT_ABORT: { union ctl_io *io; union ccb *abort_ccb; abort_ccb = ccb->cab.abort_ccb; if (abort_ccb->ccb_h.func_code != XPT_SCSI_IO) { ccb->ccb_h.status = CAM_REQ_INVALID; xpt_done(ccb); } /* * If we aren't online, there are no devices to talk to. */ if (softc->online == 0) { ccb->ccb_h.status = CAM_DEV_NOT_THERE; xpt_done(ccb); return; } io = ctl_alloc_io(softc->fe.ctl_pool_ref); if (io == NULL) { ccb->ccb_h.status = CAM_BUSY | CAM_DEV_QFRZN; xpt_freeze_devq(ccb->ccb_h.path, 1); xpt_done(ccb); return; } ctl_zero_io(io); /* Save pointers on both sides */ io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ccb; ccb->ccb_h.io_ptr = io; io->io_hdr.io_type = CTL_IO_TASK; io->io_hdr.nexus.initid.id = 1; io->io_hdr.nexus.targ_port = softc->fe.targ_port; io->io_hdr.nexus.targ_target.id = ccb->ccb_h.target_id; io->io_hdr.nexus.targ_lun = ccb->ccb_h.target_lun; io->taskio.task_action = CTL_TASK_ABORT_TASK; io->taskio.tag_num = abort_ccb->csio.tag_id; switch (abort_ccb->csio.tag_action) { case CAM_TAG_ACTION_NONE: io->taskio.tag_type = CTL_TAG_UNTAGGED; break; case MSG_SIMPLE_TASK: io->taskio.tag_type = CTL_TAG_SIMPLE; break; case MSG_HEAD_OF_QUEUE_TASK: io->taskio.tag_type = CTL_TAG_HEAD_OF_QUEUE; break; case MSG_ORDERED_TASK: io->taskio.tag_type = CTL_TAG_ORDERED; break; case MSG_ACA_TASK: io->taskio.tag_type = CTL_TAG_ACA; break; default: io->taskio.tag_type = CTL_TAG_UNTAGGED; printf("%s: unhandled tag type %#x!!\n", __func__, abort_ccb->csio.tag_action); break; } err = ctl_queue(io); if (err != CTL_RETVAL_COMPLETE) { printf("%s func %d: error %d returned by " "ctl_queue()!\n", __func__, ccb->ccb_h.func_code, err); ctl_free_io(io); } break; } case XPT_GET_TRAN_SETTINGS: { struct ccb_trans_settings *cts; struct ccb_trans_settings_scsi *scsi; struct ccb_trans_settings_fc *fc; cts = &ccb->cts; scsi = &cts->proto_specific.scsi; fc = &cts->xport_specific.fc; cts->protocol = PROTO_SCSI; cts->protocol_version = SCSI_REV_SPC2; cts->transport = XPORT_FC; cts->transport_version = 0; scsi->valid = CTS_SCSI_VALID_TQ; scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; fc->valid = CTS_FC_VALID_SPEED; fc->bitrate = 800000; fc->wwnn = softc->wwnn; fc->wwpn = softc->wwpn; fc->port = softc->fe.targ_port; fc->valid |= CTS_FC_VALID_WWNN | CTS_FC_VALID_WWPN | CTS_FC_VALID_PORT; ccb->ccb_h.status = CAM_REQ_CMP; break; } case XPT_SET_TRAN_SETTINGS: /* XXX KDM should we actually do something here? */ ccb->ccb_h.status = CAM_REQ_CMP; break; case XPT_RESET_BUS: case XPT_RESET_DEV: { union ctl_io *io; /* * If we aren't online, there are no devices to talk to. */ if (softc->online == 0) { ccb->ccb_h.status = CAM_DEV_NOT_THERE; xpt_done(ccb); return; } io = ctl_alloc_io(softc->fe.ctl_pool_ref); if (io == NULL) { ccb->ccb_h.status = CAM_BUSY | CAM_DEV_QFRZN; xpt_freeze_devq(ccb->ccb_h.path, 1); xpt_done(ccb); return; } ctl_zero_io(io); /* Save pointers on both sides */ io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ccb; ccb->ccb_h.io_ptr = io; io->io_hdr.io_type = CTL_IO_TASK; io->io_hdr.nexus.initid.id = 0; io->io_hdr.nexus.targ_port = softc->fe.targ_port; io->io_hdr.nexus.targ_target.id = ccb->ccb_h.target_id; io->io_hdr.nexus.targ_lun = ccb->ccb_h.target_lun; if (ccb->ccb_h.func_code == XPT_RESET_BUS) io->taskio.task_action = CTL_TASK_BUS_RESET; else io->taskio.task_action = CTL_TASK_LUN_RESET; err = ctl_queue(io); if (err != CTL_RETVAL_COMPLETE) { printf("%s func %d: error %d returned by " "ctl_queue()!\n", __func__, ccb->ccb_h.func_code, err); ctl_free_io(io); } break; } case XPT_CALC_GEOMETRY: cam_calc_geometry(&ccb->ccg, 1); xpt_done(ccb); break; case XPT_PATH_INQ: { struct ccb_pathinq *cpi; cpi = &ccb->cpi; cpi->version_num = 0; cpi->hba_inquiry = PI_TAG_ABLE; cpi->target_sprt = 0; cpi->hba_misc = 0; cpi->hba_eng_cnt = 0; cpi->max_target = 1; cpi->max_lun = 1024; /* Do we really have a limit? */ cpi->maxio = 1024 * 1024; cpi->async_flags = 0; cpi->hpath_id = 0; cpi->initiator_id = 0; strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); strncpy(cpi->hba_vid, "FreeBSD", HBA_IDLEN); strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); cpi->unit_number = 0; cpi->bus_id = 0; cpi->base_transfer_speed = 800000; cpi->protocol = PROTO_SCSI; cpi->protocol_version = SCSI_REV_SPC2; /* * Pretend to be Fibre Channel. */ cpi->transport = XPORT_FC; cpi->transport_version = 0; cpi->xport_specific.fc.wwnn = softc->wwnn; cpi->xport_specific.fc.wwpn = softc->wwpn; cpi->xport_specific.fc.port = softc->fe.targ_port; cpi->xport_specific.fc.bitrate = 8 * 1000 * 1000; cpi->ccb_h.status = CAM_REQ_CMP; break; } default: ccb->ccb_h.status = CAM_PROVIDE_FAIL; printf("%s: unsupported CCB type %#x\n", __func__, ccb->ccb_h.func_code); xpt_done(ccb); break; } } static void cfcs_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) { }