diff options
Diffstat (limited to 'sys/cam/ctl/ctl_frontend_cam_sim.c')
-rw-r--r-- | sys/cam/ctl/ctl_frontend_cam_sim.c | 866 |
1 files changed, 866 insertions, 0 deletions
diff --git a/sys/cam/ctl/ctl_frontend_cam_sim.c b/sys/cam/ctl/ctl_frontend_cam_sim.c new file mode 100644 index 0000000000000..bfd1e60f916d6 --- /dev/null +++ b/sys/cam/ctl/ctl_frontend_cam_sim.c @@ -0,0 +1,866 @@ +/*- + * 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 <ken@FreeBSD.org> + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/types.h> +#include <sys/malloc.h> +#include <sys/lock.h> +#include <sys/mutex.h> +#include <sys/condvar.h> +#include <sys/queue.h> +#include <sys/bus.h> +#include <sys/sysctl.h> +#include <machine/bus.h> +#include <sys/sbuf.h> + +#include <cam/cam.h> +#include <cam/cam_ccb.h> +#include <cam/cam_sim.h> +#include <cam/cam_xpt_sim.h> +#include <cam/cam_xpt.h> +#include <cam/cam_periph.h> +#include <cam/scsi/scsi_all.h> +#include <cam/scsi/scsi_message.h> +#include <cam/ctl/ctl_io.h> +#include <cam/ctl/ctl.h> +#include <cam/ctl/ctl_frontend.h> +#include <cam/ctl/ctl_frontend_internal.h> +#include <cam/ctl/ctl_mem_pool.h> +#include <cam/ctl/ctl_debug.h> + +#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); + +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; + + 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); + retval = 1; + goto bailout; + } + + /* + * 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; + } + + + 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; + } + + mtx_lock(&softc->lock); + 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; + } + + mtx_unlock(&softc->lock); + + xpt_setup_ccb(&csa.ccb_h, softc->path, /*priority*/ 5); + 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); + + 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); + + return (retval); +} + +static void +cfcs_poll(struct cam_sim *sim) +{ + +} + +void +cfcs_shutdown(void) +{ + +} + +static void +cfcs_online(void *arg) +{ + struct cfcs_softc *softc; + union ccb *ccb; + + softc = (struct cfcs_softc *)arg; + + mtx_lock(&softc->lock); + softc->online = 1; + mtx_unlock(&softc->lock); + + ccb = xpt_alloc_ccb_nowait(); + if (ccb == NULL) { + printf("%s: unable to allocate CCB for rescan\n", __func__); + return; + } + + 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); + return; + } + xpt_rescan(ccb); +} + +static void +cfcs_offline(void *arg) +{ + struct cfcs_softc *softc; + union ccb *ccb; + + softc = (struct cfcs_softc *)arg; + + mtx_lock(&softc->lock); + softc->online = 0; + mtx_unlock(&softc->lock); + + ccb = xpt_alloc_ccb_nowait(); + if (ccb == NULL) { + printf("%s: unable to allocate CCB for rescan\n", __func__); + return; + } + + 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); + return; + } + xpt_rescan(ccb); +} + +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) +{ + +} |