diff options
Diffstat (limited to 'sys/dev/aic7xxx/aic7xxx_freebsd.c')
| -rw-r--r-- | sys/dev/aic7xxx/aic7xxx_freebsd.c | 1953 |
1 files changed, 0 insertions, 1953 deletions
diff --git a/sys/dev/aic7xxx/aic7xxx_freebsd.c b/sys/dev/aic7xxx/aic7xxx_freebsd.c deleted file mode 100644 index 6582f8c..0000000 --- a/sys/dev/aic7xxx/aic7xxx_freebsd.c +++ /dev/null @@ -1,1953 +0,0 @@ -/* - * Bus independent FreeBSD shim for the aic7xxx based adaptec SCSI controllers - * - * Copyright (c) 1994-2001 Justin T. Gibbs. - * 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. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU Public License ("GPL"). - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR - * ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE. - * - * $Id$ - * - * $FreeBSD$ - */ - -#include <dev/aic7xxx/aic7xxx_freebsd.h> -#include <dev/aic7xxx/aic7xxx_inline.h> - -#ifndef AHC_TMODE_ENABLE -#define AHC_TMODE_ENABLE 0 -#endif - -#define ccb_scb_ptr spriv_ptr0 - -#ifdef AHC_DEBUG -static int ahc_debug = AHC_DEBUG; -#endif - -#if UNUSED -static void ahc_dump_targcmd(struct target_cmd *cmd); -#endif -static int ahc_modevent(module_t mod, int type, void *data); -static void ahc_action(struct cam_sim *sim, union ccb *ccb); -static void ahc_get_tran_settings(struct ahc_softc *ahc, - int our_id, char channel, - struct ccb_trans_settings *cts); -static void ahc_async(void *callback_arg, uint32_t code, - struct cam_path *path, void *arg); -static void ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, - int nsegments, int error); -static void ahc_poll(struct cam_sim *sim); -static void ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim, - struct ccb_scsiio *csio, struct scb *scb); -static void ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, - union ccb *ccb); -static int ahc_create_path(struct ahc_softc *ahc, - char channel, u_int target, u_int lun, - struct cam_path **path); - -static void ahc_set_recoveryscb(struct ahc_softc *ahc, struct scb *scb); - -static int -ahc_create_path(struct ahc_softc *ahc, char channel, u_int target, - u_int lun, struct cam_path **path) -{ - path_id_t path_id; - - if (channel == 'B') - path_id = cam_sim_path(ahc->platform_data->sim_b); - else - path_id = cam_sim_path(ahc->platform_data->sim); - - return (xpt_create_path(path, /*periph*/NULL, - path_id, target, lun)); -} - -/* - * Attach all the sub-devices we can find - */ -int -ahc_attach(struct ahc_softc *ahc) -{ - char ahc_info[256]; - struct ccb_setasync csa; - struct cam_devq *devq; - int bus_id; - int bus_id2; - struct cam_sim *sim; - struct cam_sim *sim2; - struct cam_path *path; - struct cam_path *path2; - long s; - int count; - int error; - - count = 0; - sim = NULL; - sim2 = NULL; - - ahc_controller_info(ahc, ahc_info); - printf("%s\n", ahc_info); - ahc_lock(ahc, &s); - /* Hook up our interrupt handler */ - if ((error = bus_setup_intr(ahc->dev_softc, ahc->platform_data->irq, - INTR_TYPE_CAM|INTR_ENTROPY, ahc_platform_intr, ahc, - &ahc->platform_data->ih)) != 0) { - device_printf(ahc->dev_softc, "bus_setup_intr() failed: %d\n", - error); - goto fail; - } - - /* - * Attach secondary channel first if the user has - * declared it the primary channel. - */ - if ((ahc->features & AHC_TWIN) != 0 - && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) { - bus_id = 1; - bus_id2 = 0; - } else { - bus_id = 0; - bus_id2 = 1; - } - - /* - * Create the device queue for our SIM(s). - */ - devq = cam_simq_alloc(AHC_MAX_QUEUE); - if (devq == NULL) - goto fail; - - /* - * Construct our first channel SIM entry - */ - sim = cam_sim_alloc(ahc_action, ahc_poll, "ahc", ahc, - device_get_unit(ahc->dev_softc), - 1, AHC_MAX_QUEUE, devq); - if (sim == NULL) { - cam_simq_free(devq); - goto fail; - } - - if (xpt_bus_register(sim, bus_id) != CAM_SUCCESS) { - cam_sim_free(sim, /*free_devq*/TRUE); - sim = NULL; - goto fail; - } - - if (xpt_create_path(&path, /*periph*/NULL, - cam_sim_path(sim), CAM_TARGET_WILDCARD, - CAM_LUN_WILDCARD) != CAM_REQ_CMP) { - xpt_bus_deregister(cam_sim_path(sim)); - cam_sim_free(sim, /*free_devq*/TRUE); - sim = NULL; - goto fail; - } - - xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); - csa.ccb_h.func_code = XPT_SASYNC_CB; - csa.event_enable = AC_LOST_DEVICE; - csa.callback = ahc_async; - csa.callback_arg = sim; - xpt_action((union ccb *)&csa); - count++; - - if (ahc->features & AHC_TWIN) { - sim2 = cam_sim_alloc(ahc_action, ahc_poll, "ahc", - ahc, device_get_unit(ahc->dev_softc), 1, - AHC_MAX_QUEUE, devq); - - if (sim2 == NULL) { - printf("ahc_attach: Unable to attach second " - "bus due to resource shortage"); - goto fail; - } - - if (xpt_bus_register(sim2, bus_id2) != CAM_SUCCESS) { - printf("ahc_attach: Unable to attach second " - "bus due to resource shortage"); - /* - * We do not want to destroy the device queue - * because the first bus is using it. - */ - cam_sim_free(sim2, /*free_devq*/FALSE); - goto fail; - } - - if (xpt_create_path(&path2, /*periph*/NULL, - cam_sim_path(sim2), - CAM_TARGET_WILDCARD, - CAM_LUN_WILDCARD) != CAM_REQ_CMP) { - xpt_bus_deregister(cam_sim_path(sim2)); - cam_sim_free(sim2, /*free_devq*/FALSE); - sim2 = NULL; - goto fail; - } - xpt_setup_ccb(&csa.ccb_h, path2, /*priority*/5); - csa.ccb_h.func_code = XPT_SASYNC_CB; - csa.event_enable = AC_LOST_DEVICE; - csa.callback = ahc_async; - csa.callback_arg = sim2; - xpt_action((union ccb *)&csa); - count++; - } - -fail: - if ((ahc->features & AHC_TWIN) != 0 - && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) { - ahc->platform_data->sim_b = sim; - ahc->platform_data->path_b = path; - ahc->platform_data->sim = sim2; - ahc->platform_data->path = path2; - } else { - ahc->platform_data->sim = sim; - ahc->platform_data->path = path; - ahc->platform_data->sim_b = sim2; - ahc->platform_data->path_b = path2; - } - ahc_unlock(ahc, &s); - - if (count != 0) - /* We have to wait until after any system dumps... */ - ahc->platform_data->eh = - EVENTHANDLER_REGISTER(shutdown_final, ahc_shutdown, - ahc, SHUTDOWN_PRI_DEFAULT); - - return (count); -} - -/* - * Catch an interrupt from the adapter - */ -void -ahc_platform_intr(void *arg) -{ - struct ahc_softc *ahc; - - ahc = (struct ahc_softc *)arg; - ahc_intr(ahc); -} - -/* - * We have an scb which has been processed by the - * adaptor, now we look to see how the operation - * went. - */ -void -ahc_done(struct ahc_softc *ahc, struct scb *scb) -{ - union ccb *ccb; - - CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE, - ("ahc_done - scb %d\n", scb->hscb->tag)); - - ccb = scb->io_ctx; - LIST_REMOVE(scb, pending_links); - if ((scb->flags & SCB_UNTAGGEDQ) != 0) { - struct scb_tailq *untagged_q; - int target_offset; - - target_offset = SCB_GET_TARGET_OFFSET(ahc, scb); - untagged_q = &ahc->untagged_queues[target_offset]; - TAILQ_REMOVE(untagged_q, scb, links.tqe); - scb->flags &= ~SCB_UNTAGGEDQ; - ahc_run_untagged_queue(ahc, untagged_q); - } - - untimeout(ahc_timeout, (caddr_t)scb, ccb->ccb_h.timeout_ch); - - if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { - bus_dmasync_op_t op; - - if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) - op = BUS_DMASYNC_POSTREAD; - else - op = BUS_DMASYNC_POSTWRITE; - bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op); - bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap); - } - - if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { - struct cam_path *ccb_path; - - /* - * If we have finally disconnected, clean up our - * pending device state. - * XXX - There may be error states that cause where - * we will remain connected. - */ - ccb_path = ccb->ccb_h.path; - if (ahc->pending_device != NULL - && xpt_path_comp(ahc->pending_device->path, ccb_path) == 0) { - - if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { - ahc->pending_device = NULL; - } else { - xpt_print_path(ccb->ccb_h.path); - printf("Still disconnected\n"); - ahc_freeze_ccb(ccb); - } - } - - if (ahc_get_transaction_status(scb) == CAM_REQ_INPROG) - ccb->ccb_h.status |= CAM_REQ_CMP; - ccb->ccb_h.status &= ~CAM_SIM_QUEUED; - ahc_free_scb(ahc, scb); - xpt_done(ccb); - return; - } - - /* - * If the recovery SCB completes, we have to be - * out of our timeout. - */ - if ((scb->flags & SCB_RECOVERY_SCB) != 0) { - struct scb *list_scb; - - /* - * We were able to complete the command successfully, - * so reinstate the timeouts for all other pending - * commands. - */ - LIST_FOREACH(list_scb, &ahc->pending_scbs, pending_links) { - union ccb *ccb; - uint64_t time; - - ccb = list_scb->io_ctx; - if (ccb->ccb_h.timeout == CAM_TIME_INFINITY) - continue; - - time = ccb->ccb_h.timeout; - time *= hz; - time /= 1000; - ccb->ccb_h.timeout_ch = - timeout(ahc_timeout, list_scb, time); - } - - if (ahc_get_transaction_status(scb) == CAM_BDR_SENT - || ahc_get_transaction_status(scb) == CAM_REQ_ABORTED) - ahc_set_transaction_status(scb, CAM_CMD_TIMEOUT); - ahc_print_path(ahc, scb); - printf("no longer in timeout, status = %x\n", - ccb->ccb_h.status); - } - - /* Don't clobber any existing error state */ - if (ahc_get_transaction_status(scb) == CAM_REQ_INPROG) { - ccb->ccb_h.status |= CAM_REQ_CMP; - } else if ((scb->flags & SCB_SENSE) != 0) { - /* - * We performed autosense retrieval. - * - * Zero any sense not transferred by the - * device. The SCSI spec mandates that any - * untransfered data should be assumed to be - * zero. Complete the 'bounce' of sense information - * through buffers accessible via bus-space by - * copying it into the clients csio. - */ - memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data)); - memcpy(&ccb->csio.sense_data, - ahc_get_sense_buf(ahc, scb), - (scb->sg_list->len & AHC_SG_LEN_MASK) - - ccb->csio.sense_resid); - scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID; - } - ccb->ccb_h.status &= ~CAM_SIM_QUEUED; - ahc_free_scb(ahc, scb); - xpt_done(ccb); -} - -static void -ahc_action(struct cam_sim *sim, union ccb *ccb) -{ - struct ahc_softc *ahc; - struct ahc_tmode_lstate *lstate; - u_int target_id; - u_int our_id; - long s; - - CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahc_action\n")); - - ahc = (struct ahc_softc *)cam_sim_softc(sim); - - target_id = ccb->ccb_h.target_id; - our_id = SIM_SCSI_ID(ahc, sim); - - switch (ccb->ccb_h.func_code) { - /* Common cases first */ - case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ - case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/ - { - struct ahc_tmode_tstate *tstate; - cam_status status; - - status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate, - &lstate, TRUE); - - if (status != CAM_REQ_CMP) { - if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { - /* Response from the black hole device */ - tstate = NULL; - lstate = ahc->black_hole; - } else { - ccb->ccb_h.status = status; - xpt_done(ccb); - break; - } - } - if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) { - - ahc_lock(ahc, &s); - SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h, - sim_links.sle); - ccb->ccb_h.status = CAM_REQ_INPROG; - if ((ahc->flags & AHC_TQINFIFO_BLOCKED) != 0) - ahc_run_tqinfifo(ahc, /*paused*/FALSE); - ahc_unlock(ahc, &s); - break; - } - - /* - * The target_id represents the target we attempt to - * select. In target mode, this is the initiator of - * the original command. - */ - our_id = target_id; - target_id = ccb->csio.init_id; - /* FALLTHROUGH */ - } - case XPT_SCSI_IO: /* Execute the requested I/O operation */ - case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ - { - struct scb *scb; - struct hardware_scb *hscb; - - if ((ahc->flags & AHC_INITIATORROLE) == 0 - && (ccb->ccb_h.func_code == XPT_SCSI_IO - || ccb->ccb_h.func_code == XPT_RESET_DEV)) { - ccb->ccb_h.status = CAM_PROVIDE_FAIL; - xpt_done(ccb); - return; - } - - /* - * get an scb to use. - */ - ahc_lock(ahc, &s); - if ((scb = ahc_get_scb(ahc)) == NULL) { - - xpt_freeze_simq(sim, /*count*/1); - ahc->flags |= AHC_RESOURCE_SHORTAGE; - ahc_unlock(ahc, &s); - ccb->ccb_h.status = CAM_REQUEUE_REQ; - xpt_done(ccb); - return; - } - ahc_unlock(ahc, &s); - - hscb = scb->hscb; - - CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE, - ("start scb(%p)\n", scb)); - scb->io_ctx = ccb; - /* - * So we can find the SCB when an abort is requested - */ - ccb->ccb_h.ccb_scb_ptr = scb; - - /* - * Put all the arguments for the xfer in the scb - */ - hscb->control = 0; - hscb->scsiid = BUILD_SCSIID(ahc, sim, target_id, our_id); - hscb->lun = ccb->ccb_h.target_lun; - if (ccb->ccb_h.func_code == XPT_RESET_DEV) { - hscb->cdb_len = 0; - scb->flags |= SCB_DEVICE_RESET; - hscb->control |= MK_MESSAGE; - ahc_execute_scb(scb, NULL, 0, 0); - } else { - if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { - struct target_data *tdata; - - tdata = &hscb->shared_data.tdata; - if (ahc->pending_device == lstate) - scb->flags |= SCB_TARGET_IMMEDIATE; - hscb->control |= TARGET_SCB; - tdata->target_phases = IDENTIFY_SEEN; - if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { - tdata->target_phases |= SPHASE_PENDING; - tdata->scsi_status = - ccb->csio.scsi_status; - } - if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) - tdata->target_phases |= NO_DISCONNECT; - - tdata->initiator_tag = ccb->csio.tag_id; - } - if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) - hscb->control |= ccb->csio.tag_action; - - ahc_setup_data(ahc, sim, &ccb->csio, scb); - } - break; - } - case XPT_NOTIFY_ACK: - case XPT_IMMED_NOTIFY: - { - struct ahc_tmode_tstate *tstate; - struct ahc_tmode_lstate *lstate; - cam_status status; - - status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate, - &lstate, TRUE); - - if (status != CAM_REQ_CMP) { - ccb->ccb_h.status = status; - xpt_done(ccb); - break; - } - SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h, - sim_links.sle); - ccb->ccb_h.status = CAM_REQ_INPROG; - ahc_send_lstate_events(ahc, lstate); - break; - } - case XPT_EN_LUN: /* Enable LUN as a target */ - ahc_handle_en_lun(ahc, sim, ccb); - xpt_done(ccb); - break; - case XPT_ABORT: /* Abort the specified CCB */ - { - ahc_abort_ccb(ahc, sim, ccb); - break; - } - case XPT_SET_TRAN_SETTINGS: - { -#ifdef AHC_NEW_TRAN_SETTINGS - struct ahc_devinfo devinfo; - struct ccb_trans_settings *cts; - struct ccb_trans_settings_scsi *scsi; - struct ccb_trans_settings_spi *spi; - struct ahc_initiator_tinfo *tinfo; - struct ahc_tmode_tstate *tstate; - uint16_t *discenable; - uint16_t *tagenable; - u_int update_type; - - cts = &ccb->cts; - scsi = &cts->proto_specific.scsi; - spi = &cts->xport_specific.spi; - ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim), - cts->ccb_h.target_id, - cts->ccb_h.target_lun, - SIM_CHANNEL(ahc, sim), - ROLE_UNKNOWN); - tinfo = ahc_fetch_transinfo(ahc, devinfo.channel, - devinfo.our_scsiid, - devinfo.target, &tstate); - update_type = 0; - if (cts->type == CTS_TYPE_CURRENT_SETTINGS) { - update_type |= AHC_TRANS_GOAL; - discenable = &tstate->discenable; - tagenable = &tstate->tagenable; - tinfo->curr.protocol_version = - cts->protocol_version; - tinfo->curr.transport_version = - cts->transport_version; - tinfo->goal.protocol_version = - cts->protocol_version; - tinfo->goal.transport_version = - cts->transport_version; - } else if (cts->type == CTS_TYPE_USER_SETTINGS) { - update_type |= AHC_TRANS_USER; - discenable = &ahc->user_discenable; - tagenable = &ahc->user_tagenable; - tinfo->user.protocol_version = - cts->protocol_version; - tinfo->user.transport_version = - cts->transport_version; - } else { - ccb->ccb_h.status = CAM_REQ_INVALID; - xpt_done(ccb); - break; - } - - ahc_lock(ahc, &s); - - if ((spi->valid & CTS_SPI_VALID_DISC) != 0) { - if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) - *discenable |= devinfo.target_mask; - else - *discenable &= ~devinfo.target_mask; - } - - if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) { - if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) - *tagenable |= devinfo.target_mask; - else - *tagenable &= ~devinfo.target_mask; - } - - if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) { - ahc_validate_width(ahc, /*tinfo limit*/NULL, - &spi->bus_width, ROLE_UNKNOWN); - ahc_set_width(ahc, &devinfo, spi->bus_width, - update_type, /*paused*/FALSE); - } - - if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) { - if (update_type == AHC_TRANS_USER) - spi->ppr_options = tinfo->user.ppr_options; - else - spi->ppr_options = tinfo->goal.ppr_options; - } - - if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) { - if (update_type == AHC_TRANS_USER) - spi->sync_offset = tinfo->user.offset; - else - spi->sync_offset = tinfo->goal.offset; - } - - if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { - if (update_type == AHC_TRANS_USER) - spi->sync_period = tinfo->user.period; - else - spi->sync_period = tinfo->goal.period; - } - - if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0) - || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) { - struct ahc_syncrate *syncrate; - u_int maxsync; - - if ((ahc->features & AHC_ULTRA2) != 0) - maxsync = AHC_SYNCRATE_DT; - else if ((ahc->features & AHC_ULTRA) != 0) - maxsync = AHC_SYNCRATE_ULTRA; - else - maxsync = AHC_SYNCRATE_FAST; - - syncrate = ahc_find_syncrate(ahc, &spi->sync_period, - &spi->ppr_options, - maxsync); - ahc_validate_offset(ahc, /*tinfo limit*/NULL, - syncrate, &spi->sync_offset, - spi->bus_width, ROLE_UNKNOWN); - - /* We use a period of 0 to represent async */ - if (spi->sync_offset == 0) { - spi->sync_period = 0; - spi->ppr_options = 0; - } - - ahc_set_syncrate(ahc, &devinfo, syncrate, - spi->sync_period, spi->sync_offset, - spi->ppr_options, update_type, - /*paused*/FALSE); - } - ahc_unlock(ahc, &s); - ccb->ccb_h.status = CAM_REQ_CMP; - xpt_done(ccb); -#else - struct ahc_devinfo devinfo; - struct ccb_trans_settings *cts; - struct ahc_initiator_tinfo *tinfo; - struct ahc_tmode_tstate *tstate; - uint16_t *discenable; - uint16_t *tagenable; - u_int update_type; - long s; - - cts = &ccb->cts; - ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim), - cts->ccb_h.target_id, - cts->ccb_h.target_lun, - SIM_CHANNEL(ahc, sim), - ROLE_UNKNOWN); - tinfo = ahc_fetch_transinfo(ahc, devinfo.channel, - devinfo.our_scsiid, - devinfo.target, &tstate); - update_type = 0; - if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) { - update_type |= AHC_TRANS_GOAL; - discenable = &tstate->discenable; - tagenable = &tstate->tagenable; - } else if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) { - update_type |= AHC_TRANS_USER; - discenable = &ahc->user_discenable; - tagenable = &ahc->user_tagenable; - } else { - ccb->ccb_h.status = CAM_REQ_INVALID; - xpt_done(ccb); - break; - } - - ahc_lock(ahc, &s); - - if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) { - if ((cts->flags & CCB_TRANS_DISC_ENB) != 0) - *discenable |= devinfo.target_mask; - else - *discenable &= ~devinfo.target_mask; - } - - if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) { - if ((cts->flags & CCB_TRANS_TAG_ENB) != 0) - *tagenable |= devinfo.target_mask; - else - *tagenable &= ~devinfo.target_mask; - } - - if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) { - ahc_validate_width(ahc, /*tinfo limit*/NULL, - &cts->bus_width, ROLE_UNKNOWN); - ahc_set_width(ahc, &devinfo, cts->bus_width, - update_type, /*paused*/FALSE); - } - - if ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) == 0) { - if (update_type == AHC_TRANS_USER) - cts->sync_offset = tinfo->user.offset; - else - cts->sync_offset = tinfo->goal.offset; - } - - if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) == 0) { - if (update_type == AHC_TRANS_USER) - cts->sync_period = tinfo->user.period; - else - cts->sync_period = tinfo->goal.period; - } - - if (((cts->valid & CCB_TRANS_SYNC_RATE_VALID) != 0) - || ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) != 0)) { - struct ahc_syncrate *syncrate; - u_int ppr_options; - u_int maxsync; - - if ((ahc->features & AHC_ULTRA2) != 0) - maxsync = AHC_SYNCRATE_DT; - else if ((ahc->features & AHC_ULTRA) != 0) - maxsync = AHC_SYNCRATE_ULTRA; - else - maxsync = AHC_SYNCRATE_FAST; - - ppr_options = 0; - if (cts->sync_period <= 9) - ppr_options = MSG_EXT_PPR_DT_REQ; - - syncrate = ahc_find_syncrate(ahc, &cts->sync_period, - &ppr_options, - maxsync); - ahc_validate_offset(ahc, /*tinfo limit*/NULL, - syncrate, &cts->sync_offset, - MSG_EXT_WDTR_BUS_8_BIT, - ROLE_UNKNOWN); - - /* We use a period of 0 to represent async */ - if (cts->sync_offset == 0) { - cts->sync_period = 0; - ppr_options = 0; - } - - if (ppr_options == MSG_EXT_PPR_DT_REQ - && tinfo->user.transport_version >= 3) { - tinfo->goal.transport_version = - tinfo->user.transport_version; - tinfo->curr.transport_version = - tinfo->user.transport_version; - } - - ahc_set_syncrate(ahc, &devinfo, syncrate, - cts->sync_period, cts->sync_offset, - ppr_options, update_type, - /*paused*/FALSE); - } - ahc_unlock(ahc, &s); - ccb->ccb_h.status = CAM_REQ_CMP; - xpt_done(ccb); -#endif - break; - } - case XPT_GET_TRAN_SETTINGS: - /* Get default/user set transfer settings for the target */ - { - - ahc_lock(ahc, &s); - ahc_get_tran_settings(ahc, SIM_SCSI_ID(ahc, sim), - SIM_CHANNEL(ahc, sim), &ccb->cts); - ahc_unlock(ahc, &s); - xpt_done(ccb); - break; - } - case XPT_CALC_GEOMETRY: - { - struct ccb_calc_geometry *ccg; - uint32_t size_mb; - uint32_t secs_per_cylinder; - int extended; - - ccg = &ccb->ccg; - size_mb = ccg->volume_size - / ((1024L * 1024L) / ccg->block_size); - extended = SIM_IS_SCSIBUS_B(ahc, sim) - ? ahc->flags & AHC_EXTENDED_TRANS_B - : ahc->flags & AHC_EXTENDED_TRANS_A; - - if (size_mb > 1024 && extended) { - ccg->heads = 255; - ccg->secs_per_track = 63; - } else { - ccg->heads = 64; - ccg->secs_per_track = 32; - } - secs_per_cylinder = ccg->heads * ccg->secs_per_track; - ccg->cylinders = ccg->volume_size / secs_per_cylinder; - ccb->ccb_h.status = CAM_REQ_CMP; - xpt_done(ccb); - break; - } - case XPT_RESET_BUS: /* Reset the specified SCSI bus */ - { - int found; - - ahc_lock(ahc, &s); - found = ahc_reset_channel(ahc, SIM_CHANNEL(ahc, sim), - /*initiate reset*/TRUE); - ahc_unlock(ahc, &s); - if (bootverbose) { - xpt_print_path(SIM_PATH(ahc, sim)); - printf("SCSI bus reset delivered. " - "%d SCBs aborted.\n", found); - } - ccb->ccb_h.status = CAM_REQ_CMP; - xpt_done(ccb); - break; - } - case XPT_TERM_IO: /* Terminate the I/O process */ - /* XXX Implement */ - ccb->ccb_h.status = CAM_REQ_INVALID; - xpt_done(ccb); - break; - case XPT_PATH_INQ: /* Path routing inquiry */ - { - struct ccb_pathinq *cpi = &ccb->cpi; - - cpi->version_num = 1; /* XXX??? */ - cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE; - if ((ahc->features & AHC_WIDE) != 0) - cpi->hba_inquiry |= PI_WIDE_16; - if ((ahc->features & AHC_TARGETMODE) != 0) { - cpi->target_sprt = PIT_PROCESSOR - | PIT_DISCONNECT - | PIT_TERM_IO; - } else { - cpi->target_sprt = 0; - } - cpi->hba_misc = 0; - cpi->hba_eng_cnt = 0; - cpi->max_target = (ahc->features & AHC_WIDE) ? 15 : 7; - cpi->max_lun = AHC_NUM_LUNS - 1; - if (SIM_IS_SCSIBUS_B(ahc, sim)) { - cpi->initiator_id = ahc->our_id_b; - if ((ahc->flags & AHC_RESET_BUS_B) == 0) - cpi->hba_misc |= PIM_NOBUSRESET; - } else { - cpi->initiator_id = ahc->our_id; - if ((ahc->flags & AHC_RESET_BUS_A) == 0) - cpi->hba_misc |= PIM_NOBUSRESET; - } - cpi->bus_id = cam_sim_bus(sim); - cpi->base_transfer_speed = 3300; - strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); - strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN); - strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); - cpi->unit_number = cam_sim_unit(sim); -#ifdef AHC_NEW_TRAN_SETTINGS - cpi->protocol = PROTO_SCSI; - cpi->protocol_version = SCSI_REV_2; - cpi->transport = XPORT_SPI; - cpi->transport_version = 2; - cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST; - if ((ahc->features & AHC_DT) != 0) { - cpi->transport_version = 3; - cpi->xport_specific.spi.ppr_options = - SID_SPI_CLOCK_DT_ST; - } -#endif - cpi->ccb_h.status = CAM_REQ_CMP; - xpt_done(ccb); - break; - } - default: - ccb->ccb_h.status = CAM_PROVIDE_FAIL; - xpt_done(ccb); - break; - } -} - -static void -ahc_get_tran_settings(struct ahc_softc *ahc, int our_id, char channel, - struct ccb_trans_settings *cts) -{ -#ifdef AHC_NEW_TRAN_SETTINGS - struct ahc_devinfo devinfo; - struct ccb_trans_settings_scsi *scsi; - struct ccb_trans_settings_spi *spi; - struct ahc_initiator_tinfo *targ_info; - struct ahc_tmode_tstate *tstate; - struct ahc_transinfo *tinfo; - - scsi = &cts->proto_specific.scsi; - spi = &cts->xport_specific.spi; - ahc_compile_devinfo(&devinfo, our_id, - cts->ccb_h.target_id, - cts->ccb_h.target_lun, - channel, ROLE_UNKNOWN); - targ_info = ahc_fetch_transinfo(ahc, devinfo.channel, - devinfo.our_scsiid, - devinfo.target, &tstate); - - if (cts->type == CTS_TYPE_CURRENT_SETTINGS) - tinfo = &targ_info->curr; - else - tinfo = &targ_info->user; - - scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; - spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; - if (cts->type == CTS_TYPE_USER_SETTINGS) { - if ((ahc->user_discenable & devinfo.target_mask) != 0) - spi->flags |= CTS_SPI_FLAGS_DISC_ENB; - - if ((ahc->user_tagenable & devinfo.target_mask) != 0) - scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; - } else { - if ((tstate->discenable & devinfo.target_mask) != 0) - spi->flags |= CTS_SPI_FLAGS_DISC_ENB; - - if ((tstate->tagenable & devinfo.target_mask) != 0) - scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; - } - cts->protocol_version = tinfo->protocol_version; - cts->transport_version = tinfo->transport_version; - - spi->sync_period = tinfo->period; - spi->sync_offset = tinfo->offset; - spi->bus_width = tinfo->width; - spi->ppr_options = tinfo->ppr_options; - - cts->protocol = PROTO_SCSI; - cts->transport = XPORT_SPI; - spi->valid = CTS_SPI_VALID_SYNC_RATE - | CTS_SPI_VALID_SYNC_OFFSET - | CTS_SPI_VALID_BUS_WIDTH - | CTS_SPI_VALID_PPR_OPTIONS; - - if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { - scsi->valid = CTS_SCSI_VALID_TQ; - spi->valid |= CTS_SPI_VALID_DISC; - } else { - scsi->valid = 0; - } - - cts->ccb_h.status = CAM_REQ_CMP; -#else - struct ahc_devinfo devinfo; - struct ahc_initiator_tinfo *targ_info; - struct ahc_tmode_tstate *tstate; - struct ahc_transinfo *tinfo; - long s; - - ahc_compile_devinfo(&devinfo, our_id, - cts->ccb_h.target_id, - cts->ccb_h.target_lun, - channel, ROLE_UNKNOWN); - targ_info = ahc_fetch_transinfo(ahc, devinfo.channel, - devinfo.our_scsiid, - devinfo.target, &tstate); - - if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) - tinfo = &targ_info->curr; - else - tinfo = &targ_info->user; - - ahc_lock(ahc, &s); - - cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB); - if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) == 0) { - if ((ahc->user_discenable & devinfo.target_mask) != 0) - cts->flags |= CCB_TRANS_DISC_ENB; - - if ((ahc->user_tagenable & devinfo.target_mask) != 0) - cts->flags |= CCB_TRANS_TAG_ENB; - } else { - if ((tstate->discenable & devinfo.target_mask) != 0) - cts->flags |= CCB_TRANS_DISC_ENB; - - if ((tstate->tagenable & devinfo.target_mask) != 0) - cts->flags |= CCB_TRANS_TAG_ENB; - } - cts->sync_period = tinfo->period; - cts->sync_offset = tinfo->offset; - cts->bus_width = tinfo->width; - - ahc_unlock(ahc, &s); - - cts->valid = CCB_TRANS_SYNC_RATE_VALID - | CCB_TRANS_SYNC_OFFSET_VALID - | CCB_TRANS_BUS_WIDTH_VALID; - - if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) - cts->valid |= CCB_TRANS_DISC_VALID|CCB_TRANS_TQ_VALID; - - cts->ccb_h.status = CAM_REQ_CMP; -#endif -} - -static void -ahc_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) -{ - struct ahc_softc *ahc; - struct cam_sim *sim; - - sim = (struct cam_sim *)callback_arg; - ahc = (struct ahc_softc *)cam_sim_softc(sim); - switch (code) { - case AC_LOST_DEVICE: - { - struct ahc_devinfo devinfo; - long s; - - ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim), - xpt_path_target_id(path), - xpt_path_lun_id(path), - SIM_CHANNEL(ahc, sim), - ROLE_UNKNOWN); - - /* - * Revert to async/narrow transfers - * for the next device. - */ - ahc_lock(ahc, &s); - ahc_set_width(ahc, &devinfo, MSG_EXT_WDTR_BUS_8_BIT, - AHC_TRANS_GOAL|AHC_TRANS_CUR, /*paused*/FALSE); - ahc_set_syncrate(ahc, &devinfo, /*syncrate*/NULL, - /*period*/0, /*offset*/0, /*ppr_options*/0, - AHC_TRANS_GOAL|AHC_TRANS_CUR, - /*paused*/FALSE); - ahc_unlock(ahc, &s); - break; - } - default: - break; - } -} - -static void -ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments, - int error) -{ - struct scb *scb; - union ccb *ccb; - struct ahc_softc *ahc; - struct ahc_initiator_tinfo *tinfo; - struct ahc_tmode_tstate *tstate; - u_int mask; - long s; - - scb = (struct scb *)arg; - ccb = scb->io_ctx; - ahc = scb->ahc_softc; - - if (error != 0) { - if (error == EFBIG) - ahc_set_transaction_status(scb, CAM_REQ_TOO_BIG); - else - ahc_set_transaction_status(scb, CAM_REQ_CMP_ERR); - if (nsegments != 0) - bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap); - ahc_lock(ahc, &s); - ahc_free_scb(ahc, scb); - ahc_unlock(ahc, &s); - xpt_done(ccb); - return; - } - if (nsegments != 0) { - struct ahc_dma_seg *sg; - bus_dma_segment_t *end_seg; - bus_dmasync_op_t op; - - end_seg = dm_segs + nsegments; - - /* Copy the segments into our SG list */ - sg = scb->sg_list; - while (dm_segs < end_seg) { - uint32_t len; - - sg->addr = ahc_htole32(dm_segs->ds_addr); - len = dm_segs->ds_len - | ((dm_segs->ds_addr >> 8) & 0x7F000000); - sg->len = ahc_htole32(len); - sg++; - dm_segs++; - } - - /* - * Note where to find the SG entries in bus space. - * We also set the full residual flag which the - * sequencer will clear as soon as a data transfer - * occurs. - */ - scb->hscb->sgptr = ahc_htole32(scb->sg_list_phys|SG_FULL_RESID); - - if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) - op = BUS_DMASYNC_PREREAD; - else - op = BUS_DMASYNC_PREWRITE; - - bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op); - - if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { - struct target_data *tdata; - - tdata = &scb->hscb->shared_data.tdata; - tdata->target_phases |= DPHASE_PENDING; - if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) - tdata->data_phase = P_DATAOUT; - else - tdata->data_phase = P_DATAIN; - - /* - * If the transfer is of an odd length and in the - * "in" direction (scsi->HostBus), then it may - * trigger a bug in the 'WideODD' feature of - * non-Ultra2 chips. Force the total data-length - * to be even by adding an extra, 1 byte, SG, - * element. We do this even if we are not currently - * negotiated wide as negotiation could occur before - * this command is executed. - */ - if ((ahc->bugs & AHC_TMODE_WIDEODD_BUG) != 0 - && (ccb->csio.dxfer_len & 0x1) != 0 - && (ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { - - nsegments++; - if (nsegments > AHC_NSEG) { - - ahc_set_transaction_status(scb, - CAM_REQ_TOO_BIG); - bus_dmamap_unload(ahc->buffer_dmat, - scb->dmamap); - ahc_lock(ahc, &s); - ahc_free_scb(ahc, scb); - ahc_unlock(ahc, &s); - xpt_done(ccb); - return; - } - sg->addr = ahc_htole32(ahc->dma_bug_buf); - sg->len = ahc_htole32(1); - sg++; - } - } - sg--; - sg->len |= ahc_htole32(AHC_DMA_LAST_SEG); - - /* Copy the first SG into the "current" data pointer area */ - scb->hscb->dataptr = scb->sg_list->addr; - scb->hscb->datacnt = scb->sg_list->len; - } else { - scb->hscb->sgptr = SG_LIST_NULL; - scb->hscb->dataptr = 0; - scb->hscb->datacnt = 0; - } - - scb->sg_count = nsegments; - - ahc_lock(ahc, &s); - - /* - * Last time we need to check if this SCB needs to - * be aborted. - */ - if (ahc_get_transaction_status(scb) != CAM_REQ_INPROG) { - if (nsegments != 0) - bus_dmamap_unload(ahc->buffer_dmat, - scb->dmamap); - ahc_free_scb(ahc, scb); - ahc_unlock(ahc, &s); - xpt_done(ccb); - return; - } - - tinfo = ahc_fetch_transinfo(ahc, SCSIID_CHANNEL(ahc, scb->hscb->scsiid), - SCSIID_OUR_ID(scb->hscb->scsiid), - SCSIID_TARGET(ahc, scb->hscb->scsiid), - &tstate); - - mask = SCB_GET_TARGET_MASK(ahc, scb); - scb->hscb->scsirate = tinfo->scsirate; - scb->hscb->scsioffset = tinfo->curr.offset; - if ((tstate->ultraenb & mask) != 0) - scb->hscb->control |= ULTRAENB; - - if ((tstate->discenable & mask) != 0 - && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0) - scb->hscb->control |= DISCENB; - - if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0 - && (tinfo->goal.width != 0 - || tinfo->goal.period != 0 - || tinfo->goal.ppr_options != 0)) { - scb->flags |= SCB_NEGOTIATE; - scb->hscb->control |= MK_MESSAGE; - } else if ((tstate->auto_negotiate & mask) != 0) { - scb->flags |= SCB_AUTO_NEGOTIATE; - scb->hscb->control |= MK_MESSAGE; - } - - LIST_INSERT_HEAD(&ahc->pending_scbs, scb, pending_links); - - ccb->ccb_h.status |= CAM_SIM_QUEUED; - - if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) { - uint64_t time; - - if (ccb->ccb_h.timeout == CAM_TIME_DEFAULT) - ccb->ccb_h.timeout = 5 * 1000; - - time = ccb->ccb_h.timeout; - time *= hz; - time /= 1000; - ccb->ccb_h.timeout_ch = - timeout(ahc_timeout, (caddr_t)scb, time); - } - - /* - * We only allow one untagged transaction - * per target in the initiator role unless - * we are storing a full busy target *lun* - * table in SCB space. - */ - if ((scb->hscb->control & (TARGET_SCB|TAG_ENB)) == 0 - && (ahc->flags & AHC_SCB_BTT) == 0) { - struct scb_tailq *untagged_q; - int target_offset; - - target_offset = SCB_GET_TARGET_OFFSET(ahc, scb); - untagged_q = &(ahc->untagged_queues[target_offset]); - TAILQ_INSERT_TAIL(untagged_q, scb, links.tqe); - scb->flags |= SCB_UNTAGGEDQ; - if (TAILQ_FIRST(untagged_q) != scb) { - ahc_unlock(ahc, &s); - return; - } - } - scb->flags |= SCB_ACTIVE; - - if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) { - /* Define a mapping from our tag to the SCB. */ - ahc->scb_data->scbindex[scb->hscb->tag] = scb; - ahc_pause(ahc); - if ((ahc->flags & AHC_PAGESCBS) == 0) - ahc_outb(ahc, SCBPTR, scb->hscb->tag); - ahc_outb(ahc, SCB_TAG, scb->hscb->tag); - ahc_outb(ahc, RETURN_1, CONT_MSG_LOOP); - ahc_unpause(ahc); - } else { - ahc_queue_scb(ahc, scb); - } - - ahc_unlock(ahc, &s); -} - -static void -ahc_poll(struct cam_sim *sim) -{ - ahc_intr(cam_sim_softc(sim)); -} - -static void -ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim, - struct ccb_scsiio *csio, struct scb *scb) -{ - struct hardware_scb *hscb; - struct ccb_hdr *ccb_h; - - hscb = scb->hscb; - ccb_h = &csio->ccb_h; - - csio->resid = 0; - csio->sense_resid = 0; - if (ccb_h->func_code == XPT_SCSI_IO) { - hscb->cdb_len = csio->cdb_len; - if ((ccb_h->flags & CAM_CDB_POINTER) != 0) { - - if (hscb->cdb_len > sizeof(hscb->cdb32) - || (ccb_h->flags & CAM_CDB_PHYS) != 0) { - u_long s; - - ahc_set_transaction_status(scb, - CAM_REQ_INVALID); - ahc_lock(ahc, &s); - ahc_free_scb(ahc, scb); - ahc_unlock(ahc, &s); - xpt_done((union ccb *)csio); - return; - } - if (hscb->cdb_len > 12) { - memcpy(hscb->cdb32, - csio->cdb_io.cdb_ptr, - hscb->cdb_len); - scb->flags |= SCB_CDB32_PTR; - } else { - memcpy(hscb->shared_data.cdb, - csio->cdb_io.cdb_ptr, - hscb->cdb_len); - } - } else { - if (hscb->cdb_len > 12) { - memcpy(hscb->cdb32, csio->cdb_io.cdb_bytes, - hscb->cdb_len); - scb->flags |= SCB_CDB32_PTR; - } else { - memcpy(hscb->shared_data.cdb, - csio->cdb_io.cdb_bytes, - hscb->cdb_len); - } - } - } - - /* Only use S/G if there is a transfer */ - if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { - if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) { - /* We've been given a pointer to a single buffer */ - if ((ccb_h->flags & CAM_DATA_PHYS) == 0) { - int s; - int error; - - s = splsoftvm(); - error = bus_dmamap_load(ahc->buffer_dmat, - scb->dmamap, - csio->data_ptr, - csio->dxfer_len, - ahc_execute_scb, - scb, /*flags*/0); - if (error == EINPROGRESS) { - /* - * So as to maintain ordering, - * freeze the controller queue - * until our mapping is - * returned. - */ - xpt_freeze_simq(sim, - /*count*/1); - scb->io_ctx->ccb_h.status |= - CAM_RELEASE_SIMQ; - } - splx(s); - } else { - struct bus_dma_segment seg; - - /* Pointer to physical buffer */ - if (csio->dxfer_len > AHC_MAXTRANSFER_SIZE) - panic("ahc_setup_data - Transfer size " - "larger than can device max"); - - seg.ds_addr = (bus_addr_t)csio->data_ptr; - seg.ds_len = csio->dxfer_len; - ahc_execute_scb(scb, &seg, 1, 0); - } - } else { - struct bus_dma_segment *segs; - - if ((ccb_h->flags & CAM_DATA_PHYS) != 0) - panic("ahc_setup_data - Physical segment " - "pointers unsupported"); - - if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0) - panic("ahc_setup_data - Virtual segment " - "addresses unsupported"); - - /* Just use the segments provided */ - segs = (struct bus_dma_segment *)csio->data_ptr; - ahc_execute_scb(scb, segs, csio->sglist_cnt, 0); - } - } else { - ahc_execute_scb(scb, NULL, 0, 0); - } -} - -static void -ahc_set_recoveryscb(struct ahc_softc *ahc, struct scb *scb) { - - if ((scb->flags & SCB_RECOVERY_SCB) == 0) { - struct scb *list_scb; - - scb->flags |= SCB_RECOVERY_SCB; - - /* - * Take all queued, but not sent SCBs out of the equation. - * Also ensure that no new CCBs are queued to us while we - * try to fix this problem. - */ - if ((scb->io_ctx->ccb_h.status & CAM_RELEASE_SIMQ) == 0) { - xpt_freeze_simq(SCB_GET_SIM(ahc, scb), /*count*/1); - scb->io_ctx->ccb_h.status |= CAM_RELEASE_SIMQ; - } - - /* - * Go through all of our pending SCBs and remove - * any scheduled timeouts for them. We will reschedule - * them after we've successfully fixed this problem. - */ - LIST_FOREACH(list_scb, &ahc->pending_scbs, pending_links) { - union ccb *ccb; - - ccb = list_scb->io_ctx; - untimeout(ahc_timeout, list_scb, ccb->ccb_h.timeout_ch); - } - } -} - -void -ahc_timeout(void *arg) -{ - struct scb *scb; - struct ahc_softc *ahc; - long s; - int found; - u_int last_phase; - int target; - int lun; - int i; - char channel; - - scb = (struct scb *)arg; - ahc = (struct ahc_softc *)scb->ahc_softc; - - ahc_lock(ahc, &s); - - ahc_pause_and_flushwork(ahc); - - if ((scb->flags & SCB_ACTIVE) == 0) { - /* Previous timeout took care of me already */ - printf("%s: Timedout SCB already complete. " - "Interrupts may not be functioning.\n", ahc_name(ahc)); - ahc_unpause(ahc); - ahc_unlock(ahc, &s); - return; - } - - target = SCB_GET_TARGET(ahc, scb); - channel = SCB_GET_CHANNEL(ahc, scb); - lun = SCB_GET_LUN(scb); - - ahc_print_path(ahc, scb); - printf("SCB 0x%x - timed out\n", scb->hscb->tag); - ahc_dump_card_state(ahc); - last_phase = ahc_inb(ahc, LASTPHASE); - if (scb->sg_count > 0) { - for (i = 0; i < scb->sg_count; i++) { - printf("sg[%d] - Addr 0x%x : Length %d\n", - i, - scb->sg_list[i].addr, - scb->sg_list[i].len & AHC_SG_LEN_MASK); - } - } - if (scb->flags & (SCB_DEVICE_RESET|SCB_ABORT)) { - /* - * Been down this road before. - * Do a full bus reset. - */ -bus_reset: - ahc_set_transaction_status(scb, CAM_CMD_TIMEOUT); - found = ahc_reset_channel(ahc, channel, /*Initiate Reset*/TRUE); - printf("%s: Issued Channel %c Bus Reset. " - "%d SCBs aborted\n", ahc_name(ahc), channel, found); - } else { - /* - * If we are a target, transition to bus free and report - * the timeout. - * - * The target/initiator that is holding up the bus may not - * be the same as the one that triggered this timeout - * (different commands have different timeout lengths). - * If the bus is idle and we are actiing as the initiator - * for this request, queue a BDR message to the timed out - * target. Otherwise, if the timed out transaction is - * active: - * Initiator transaction: - * Stuff the message buffer with a BDR message and assert - * ATN in the hopes that the target will let go of the bus - * and go to the mesgout phase. If this fails, we'll - * get another timeout 2 seconds later which will attempt - * a bus reset. - * - * Target transaction: - * Transition to BUS FREE and report the error. - * It's good to be the target! - */ - u_int active_scb_index; - u_int saved_scbptr; - - saved_scbptr = ahc_inb(ahc, SCBPTR); - active_scb_index = ahc_inb(ahc, SCB_TAG); - - if (last_phase != P_BUSFREE - && (ahc_inb(ahc, SEQ_FLAGS) & IDENTIFY_SEEN) != 0 - && (active_scb_index < ahc->scb_data->numscbs)) { - struct scb *active_scb; - - /* - * If the active SCB is not us, assume that - * the active SCB has a longer timeout than - * the timedout SCB, and wait for the active - * SCB to timeout. - */ - active_scb = ahc_lookup_scb(ahc, active_scb_index); - if (active_scb != scb) { - struct ccb_hdr *ccbh; - uint64_t newtimeout; - - ahc_print_path(ahc, scb); - printf("Other SCB Timeout%s", - (scb->flags & SCB_OTHERTCL_TIMEOUT) != 0 - ? " again\n" : "\n"); - scb->flags |= SCB_OTHERTCL_TIMEOUT; - newtimeout = - MAX(active_scb->io_ctx->ccb_h.timeout, - scb->io_ctx->ccb_h.timeout); - newtimeout *= hz; - newtimeout /= 1000; - ccbh = &scb->io_ctx->ccb_h; - scb->io_ctx->ccb_h.timeout_ch = - timeout(ahc_timeout, scb, newtimeout); - ahc_unpause(ahc); - ahc_unlock(ahc, &s); - return; - } - - /* It's us */ - if ((scb->hscb->control & TARGET_SCB) != 0) { - - /* - * Send back any queued up transactions - * and properly record the error condition. - */ - ahc_freeze_devq(ahc, scb); - ahc_set_transaction_status(scb, - CAM_CMD_TIMEOUT); - ahc_freeze_scb(scb); - ahc_done(ahc, scb); - - /* Will clear us from the bus */ - ahc_restart(ahc); - ahc_unlock(ahc, &s); - return; - } - - ahc_set_recoveryscb(ahc, active_scb); - ahc_outb(ahc, MSG_OUT, HOST_MSG); - ahc_outb(ahc, SCSISIGO, last_phase|ATNO); - ahc_print_path(ahc, active_scb); - printf("BDR message in message buffer\n"); - active_scb->flags |= SCB_DEVICE_RESET; - active_scb->io_ctx->ccb_h.timeout_ch = - timeout(ahc_timeout, (caddr_t)active_scb, 2 * hz); - ahc_unpause(ahc); - } else { - int disconnected; - - /* XXX Shouldn't panic. Just punt instead */ - if ((scb->hscb->control & TARGET_SCB) != 0) - panic("Timed-out target SCB but bus idle"); - - if (last_phase != P_BUSFREE - && (ahc_inb(ahc, SSTAT0) & TARGET) != 0) { - /* XXX What happened to the SCB? */ - /* Hung target selection. Goto busfree */ - printf("%s: Hung target selection\n", - ahc_name(ahc)); - ahc_restart(ahc); - ahc_unlock(ahc, &s); - return; - } - - if (ahc_search_qinfifo(ahc, target, channel, lun, - scb->hscb->tag, ROLE_INITIATOR, - /*status*/0, SEARCH_COUNT) > 0) { - disconnected = FALSE; - } else { - disconnected = TRUE; - } - - if (disconnected) { - - ahc_set_recoveryscb(ahc, scb); - /* - * Actually re-queue this SCB in an attempt - * to select the device before it reconnects. - * In either case (selection or reselection), - * we will now issue a target reset to the - * timed-out device. - * - * Set the MK_MESSAGE control bit indicating - * that we desire to send a message. We - * also set the disconnected flag since - * in the paging case there is no guarantee - * that our SCB control byte matches the - * version on the card. We don't want the - * sequencer to abort the command thinking - * an unsolicited reselection occurred. - */ - scb->hscb->control |= MK_MESSAGE|DISCONNECTED; - scb->flags |= SCB_DEVICE_RESET; - - /* - * Remove any cached copy of this SCB in the - * disconnected list in preparation for the - * queuing of our abort SCB. We use the - * same element in the SCB, SCB_NEXT, for - * both the qinfifo and the disconnected list. - */ - ahc_search_disc_list(ahc, target, channel, - lun, scb->hscb->tag, - /*stop_on_first*/TRUE, - /*remove*/TRUE, - /*save_state*/FALSE); - - /* - * In the non-paging case, the sequencer will - * never re-reference the in-core SCB. - * To make sure we are notified during - * reslection, set the MK_MESSAGE flag in - * the card's copy of the SCB. - */ - if ((ahc->flags & AHC_PAGESCBS) == 0) { - ahc_outb(ahc, SCBPTR, scb->hscb->tag); - ahc_outb(ahc, SCB_CONTROL, - ahc_inb(ahc, SCB_CONTROL) - | MK_MESSAGE); - } - - /* - * Clear out any entries in the QINFIFO first - * so we are the next SCB for this target - * to run. - */ - ahc_search_qinfifo(ahc, - SCB_GET_TARGET(ahc, scb), - channel, SCB_GET_LUN(scb), - SCB_LIST_NULL, - ROLE_INITIATOR, - CAM_REQUEUE_REQ, - SEARCH_COMPLETE); - ahc_print_path(ahc, scb); - printf("Queuing a BDR SCB\n"); - ahc_qinfifo_requeue_tail(ahc, scb); - ahc_outb(ahc, SCBPTR, saved_scbptr); - scb->io_ctx->ccb_h.timeout_ch = - timeout(ahc_timeout, (caddr_t)scb, 2 * hz); - ahc_unpause(ahc); - } else { - /* Go "immediatly" to the bus reset */ - /* This shouldn't happen */ - ahc_set_recoveryscb(ahc, scb); - ahc_print_path(ahc, scb); - printf("SCB %d: Immediate reset. " - "Flags = 0x%x\n", scb->hscb->tag, - scb->flags); - goto bus_reset; - } - } - } - ahc_unlock(ahc, &s); -} - -static void -ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb) -{ - union ccb *abort_ccb; - - abort_ccb = ccb->cab.abort_ccb; - switch (abort_ccb->ccb_h.func_code) { - case XPT_ACCEPT_TARGET_IO: - case XPT_IMMED_NOTIFY: - case XPT_CONT_TARGET_IO: - { - struct ahc_tmode_tstate *tstate; - struct ahc_tmode_lstate *lstate; - struct ccb_hdr_slist *list; - cam_status status; - - status = ahc_find_tmode_devs(ahc, sim, abort_ccb, &tstate, - &lstate, TRUE); - - if (status != CAM_REQ_CMP) { - ccb->ccb_h.status = status; - break; - } - - if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) - list = &lstate->accept_tios; - else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY) - list = &lstate->immed_notifies; - else - list = NULL; - - if (list != NULL) { - struct ccb_hdr *curelm; - int found; - - curelm = SLIST_FIRST(list); - found = 0; - if (curelm == &abort_ccb->ccb_h) { - found = 1; - SLIST_REMOVE_HEAD(list, sim_links.sle); - } else { - while(curelm != NULL) { - struct ccb_hdr *nextelm; - - nextelm = - SLIST_NEXT(curelm, sim_links.sle); - - if (nextelm == &abort_ccb->ccb_h) { - found = 1; - SLIST_NEXT(curelm, - sim_links.sle) = - SLIST_NEXT(nextelm, - sim_links.sle); - break; - } - curelm = nextelm; - } - } - - if (found) { - abort_ccb->ccb_h.status = CAM_REQ_ABORTED; - xpt_done(abort_ccb); - ccb->ccb_h.status = CAM_REQ_CMP; - } else { - xpt_print_path(abort_ccb->ccb_h.path); - printf("Not found\n"); - ccb->ccb_h.status = CAM_PATH_INVALID; - } - break; - } - /* FALLTHROUGH */ - } - case XPT_SCSI_IO: - /* XXX Fully implement the hard ones */ - ccb->ccb_h.status = CAM_UA_ABORT; - break; - default: - ccb->ccb_h.status = CAM_REQ_INVALID; - break; - } - xpt_done(ccb); -} - -void -ahc_send_async(struct ahc_softc *ahc, char channel, u_int target, - u_int lun, ac_code code, void *opt_arg) -{ - struct ccb_trans_settings cts; - struct cam_path *path; - void *arg; - int error; - - arg = NULL; - error = ahc_create_path(ahc, channel, target, lun, &path); - - if (error != CAM_REQ_CMP) - return; - - switch (code) { - case AC_TRANSFER_NEG: - { -#ifdef AHC_NEW_TRAN_SETTINGS - struct ccb_trans_settings_scsi *scsi; - - cts.type = CTS_TYPE_CURRENT_SETTINGS; - scsi = &cts.proto_specific.scsi; -#else - cts.flags = CCB_TRANS_CURRENT_SETTINGS; -#endif - cts.ccb_h.path = path; - cts.ccb_h.target_id = target; - cts.ccb_h.target_lun = lun; - ahc_get_tran_settings(ahc, channel == 'A' ? ahc->our_id - : ahc->our_id_b, - channel, &cts); - arg = &cts; -#ifdef AHC_NEW_TRAN_SETTINGS - scsi->valid &= ~CTS_SCSI_VALID_TQ; - scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; -#else - cts.valid &= ~CCB_TRANS_TQ_VALID; - cts.flags &= ~CCB_TRANS_TAG_ENB; -#endif - if (opt_arg == NULL) - break; - if (*((ahc_queue_alg *)opt_arg) == AHC_QUEUE_TAGGED) -#ifdef AHC_NEW_TRAN_SETTINGS - scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB; - scsi->valid |= CTS_SCSI_VALID_TQ; -#else - cts.flags |= CCB_TRANS_TAG_ENB; - cts.valid |= CCB_TRANS_TQ_VALID; -#endif - break; - } - case AC_SENT_BDR: - case AC_BUS_RESET: - break; - default: - panic("ahc_send_async: Unexpected async event"); - } - xpt_async(code, path, arg); - xpt_free_path(path); -} - -void -ahc_platform_set_tags(struct ahc_softc *ahc, - struct ahc_devinfo *devinfo, int enable) -{ -} - -int -ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg) -{ - ahc->platform_data = malloc(sizeof(struct ahc_platform_data), M_DEVBUF, - M_NOWAIT | M_ZERO); - if (ahc->platform_data == NULL) - return (ENOMEM); - return (0); -} - -void -ahc_platform_free(struct ahc_softc *ahc) -{ - struct ahc_platform_data *pdata; - - pdata = ahc->platform_data; - if (pdata != NULL) { - if (pdata->regs != NULL) - bus_release_resource(ahc->dev_softc, - pdata->regs_res_type, - pdata->regs_res_id, - pdata->regs); - - if (pdata->irq != NULL) - bus_release_resource(ahc->dev_softc, - pdata->irq_res_type, - 0, pdata->irq); - - if (pdata->sim_b != NULL) { - xpt_async(AC_LOST_DEVICE, pdata->path_b, NULL); - xpt_free_path(pdata->path_b); - xpt_bus_deregister(cam_sim_path(pdata->sim_b)); - cam_sim_free(pdata->sim_b, /*free_devq*/TRUE); - } - if (pdata->sim != NULL) { - xpt_async(AC_LOST_DEVICE, pdata->path, NULL); - xpt_free_path(pdata->path); - xpt_bus_deregister(cam_sim_path(pdata->sim)); - cam_sim_free(pdata->sim, /*free_devq*/TRUE); - } - if (pdata->eh != NULL) - EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh); - free(ahc->platform_data, M_DEVBUF); - } -} - -int -ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc) -{ - /* We don't sort softcs under FreeBSD so report equal always */ - return (0); -} - -int -ahc_detach(device_t dev) -{ - struct ahc_softc *ahc; - u_long s; - - device_printf(dev, "detaching device\n"); - ahc = device_get_softc(dev); - ahc_lock(ahc, &s); - bus_teardown_intr(dev, ahc->platform_data->irq, ahc->platform_data->ih); - ahc_unlock(ahc, &s); - ahc_free(ahc); - return (0); -} - -#if UNUSED -static void -ahc_dump_targcmd(struct target_cmd *cmd) -{ - uint8_t *byte; - uint8_t *last_byte; - int i; - - byte = &cmd->initiator_channel; - /* Debugging info for received commands */ - last_byte = &cmd[1].initiator_channel; - - i = 0; - while (byte < last_byte) { - if (i == 0) - printf("\t"); - printf("%#x", *byte++); - i++; - if (i == 8) { - printf("\n"); - i = 0; - } else { - printf(", "); - } - } -} -#endif - -static int -ahc_modevent(module_t mod, int type, void *data) -{ - /* XXX Deal with busy status on unload. */ - return 0; -} - -static moduledata_t ahc_mod = { - "ahc", - ahc_modevent, - NULL -}; - -DECLARE_MODULE(ahc, ahc_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); -MODULE_DEPEND(ahc, cam, 1, 1, 1); -MODULE_VERSION(ahc, 1); |
