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-rw-r--r--sys/dev/aac/aac_cam.c591
1 files changed, 591 insertions, 0 deletions
diff --git a/sys/dev/aac/aac_cam.c b/sys/dev/aac/aac_cam.c
new file mode 100644
index 0000000..6ec390c
--- /dev/null
+++ b/sys/dev/aac/aac_cam.c
@@ -0,0 +1,591 @@
+/*
+ * Copyright (c) 2002 Adaptec, Inc.
+ * 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.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * CAM front-end for communicating with non-DASD devices
+ */
+
+#include "opt_aac.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/sysctl.h>
+#include <sys/malloc.h>
+
+#include <cam/cam.h>
+#include <cam/cam_ccb.h>
+#include <cam/cam_debug.h>
+#include <cam/cam_sim.h>
+#include <cam/cam_xpt_sim.h>
+#include <cam/scsi/scsi_all.h>
+#include <cam/scsi/scsi_message.h>
+
+#include <dev/aac/aac_compat.h>
+#include <sys/bus.h>
+#include <sys/conf.h>
+#include <sys/devicestat.h>
+#include <sys/disk.h>
+
+#include <machine/md_var.h>
+#include <machine/bus.h>
+#include <sys/rman.h>
+
+#include <vm/vm.h>
+#include <vm/pmap.h>
+
+#include <dev/aac/aacreg.h>
+#include <dev/aac/aac_ioctl.h>
+#include <dev/aac/aacvar.h>
+#include <dev/aac/aac_cam.h>
+
+struct aac_cam {
+ device_t dev;
+ struct aac_cam_inf *inf;
+ u_int32_t scsi_method_id;
+ int bus;
+ struct cam_sim *sim;
+ struct cam_path *path;
+};
+
+static int aac_cam_probe(device_t dev);
+static int aac_cam_attach(device_t dev);
+static int aac_cam_detach(device_t dev);
+static void aac_cam_action(struct cam_sim *, union ccb *);
+static void aac_cam_poll(struct cam_sim *);
+static void aac_cam_complete(struct aac_command *);
+static u_int32_t aac_cam_reset_bus(struct cam_sim *, union ccb *);
+static u_int32_t aac_cam_abort_ccb(struct cam_sim *, union ccb *);
+static u_int32_t aac_cam_term_io(struct cam_sim *, union ccb *);
+static int aac_cam_get_tran_settings(struct aac_softc *, struct ccb_trans_settings *, u_int32_t);
+
+static devclass_t aac_pass_devclass;
+
+static device_method_t aac_pass_methods[] = {
+ DEVMETHOD(device_probe, aac_cam_probe),
+ DEVMETHOD(device_attach, aac_cam_attach),
+ DEVMETHOD(device_detach, aac_cam_detach),
+ { 0, 0 }
+};
+
+static driver_t aac_pass_driver = {
+ "aacp",
+ aac_pass_methods,
+ sizeof(struct aac_cam)
+};
+
+DRIVER_MODULE(aacp, aac, aac_pass_driver, aac_pass_devclass, 0, 0);
+MODULE_DEPEND(aacp, cam, 1, 1, 1);
+
+MALLOC_DEFINE(M_AACCAM, "aaccam", "AAC CAM info");
+
+static int
+aac_cam_probe(device_t dev)
+{
+
+ debug_called(2);
+
+ return (0);
+}
+
+static int
+aac_cam_detach(device_t dev)
+{
+
+ return (0);
+}
+
+/*
+ * Register the driver as a CAM SIM
+ */
+static int
+aac_cam_attach(device_t dev)
+{
+ struct cam_devq *devq;
+ struct cam_sim *sim;
+ struct cam_path *path;
+ struct aac_cam *camsc;
+ struct aac_cam_inf *inf;
+
+ debug_called(1);
+
+ camsc = (struct aac_cam *)device_get_softc(dev);
+ inf = (struct aac_cam_inf *)device_get_ivars(dev);
+ camsc->inf = inf;
+
+ devq = cam_simq_alloc(inf->TargetsPerBus);
+ if (devq == NULL)
+ return (EIO);
+
+ sim = cam_sim_alloc(aac_cam_action, aac_cam_poll, "aacp", camsc,
+ device_get_unit(dev), 1, 1, devq);
+ if (sim == NULL) {
+ cam_simq_free(devq);
+ return (EIO);
+ }
+
+ if (xpt_bus_register(sim, 0) != CAM_SUCCESS) {
+ cam_sim_free(sim, TRUE);
+ return (EIO);
+ }
+
+ if (xpt_create_path(&path, 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, TRUE);
+ return (EIO);
+ }
+
+ camsc->sim = sim;
+ camsc->path = path;
+ camsc->bus = cam_sim_bus(sim);
+
+ return (0);
+}
+
+static void
+aac_cam_action(struct cam_sim *sim, union ccb *ccb)
+{
+ struct aac_cam *camsc;
+ struct aac_softc *sc;
+ struct aac_srb32 *srb;
+ struct aac_fib *fib;
+ struct aac_command *cm;
+
+ debug_called(2);
+
+ camsc = (struct aac_cam *)cam_sim_softc(sim);
+ sc = camsc->inf->aac_sc;
+
+ /* Synchronous ops, and ops that don't require communication with the
+ * controller */
+ switch(ccb->ccb_h.func_code) {
+ case XPT_SCSI_IO:
+ case XPT_RESET_DEV:
+ /* These are handled down below */
+ break;
+ case XPT_CALC_GEOMETRY:
+ {
+ struct ccb_calc_geometry *ccg;
+ u_int32_t size_mb;
+ u_int32_t secs_per_cylinder;
+
+ ccg = &ccb->ccg;
+ size_mb = ccg->volume_size /
+ ((1024L * 1024L) / ccg->block_size);
+ if (size_mb >= (2 * 1024)) { /* 2GB */
+ ccg->heads = 255;
+ ccg->secs_per_track = 63;
+ } else if (size_mb >= (1 * 1024)) { /* 1GB */
+ ccg->heads = 128;
+ ccg->secs_per_track = 32;
+ } 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);
+ return;
+ }
+ case XPT_PATH_INQ:
+ {
+ struct ccb_pathinq *cpi = &ccb->cpi;
+
+ cpi->version_num = 1;
+ cpi->hba_inquiry = PI_WIDE_16;
+ cpi->target_sprt = 0;
+ cpi->hba_misc = 0;
+ cpi->hba_eng_cnt = 0;
+ cpi->max_target = camsc->inf->TargetsPerBus;
+ cpi->max_lun = 8; /* Per the controller spec */
+ cpi->initiator_id = camsc->inf->InitiatorBusId;
+ 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);
+
+ ccb->ccb_h.status = CAM_REQ_CMP;
+ xpt_done(ccb);
+ return;
+ }
+ case XPT_GET_TRAN_SETTINGS:
+ {
+ u_int32_t handle;
+
+ handle = AAC_BTL_TO_HANDLE(cam_sim_bus(sim),
+ ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
+ ccb->ccb_h.status = aac_cam_get_tran_settings(sc, &ccb->cts,
+ handle);
+ xpt_done(ccb);
+ return;
+ }
+ case XPT_SET_TRAN_SETTINGS:
+ ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
+ xpt_done(ccb);
+ return;
+ case XPT_RESET_BUS:
+ if (!(sc->quirks & AAC_QUIRK_CAM_NORESET)) {
+ ccb->ccb_h.status = aac_cam_reset_bus(sim, ccb);
+ } else {
+ ccb->ccb_h.status = CAM_REQ_CMP;
+ }
+ xpt_done(ccb);
+ return;
+ case XPT_ABORT:
+ ccb->ccb_h.status = aac_cam_abort_ccb(sim, ccb);
+ xpt_done(ccb);
+ return;
+ case XPT_TERM_IO:
+ ccb->ccb_h.status = aac_cam_term_io(sim, ccb);
+ xpt_done(ccb);
+ return;
+ default:
+ device_printf(sc->aac_dev, "Unsupported command 0x%x\n",
+ ccb->ccb_h.func_code);
+ ccb->ccb_h.status = CAM_PROVIDE_FAIL;
+ xpt_done(ccb);
+ return;
+ }
+
+ /* Async ops that require communcation with the controller */
+
+ if (aac_alloc_command(sc, &cm)) {
+ xpt_freeze_simq(sim, 1);
+ ccb->ccb_h.status = CAM_REQUEUE_REQ;
+ xpt_done(ccb);
+ return;
+ }
+
+ fib = cm->cm_fib;
+ srb = (struct aac_srb32 *)&fib->data[0];
+ cm->cm_datalen = 0;
+
+ switch (ccb->ccb_h.flags & CAM_DIR_MASK) {
+ case CAM_DIR_IN:
+ srb->flags = AAC_SRB_FLAGS_DATA_IN;
+ cm->cm_flags |= AAC_CMD_DATAIN;
+ break;
+ case CAM_DIR_OUT:
+ srb->flags = AAC_SRB_FLAGS_DATA_OUT;
+ cm->cm_flags |= AAC_CMD_DATAOUT;
+ break;
+ case CAM_DIR_NONE:
+ srb->flags = AAC_SRB_FLAGS_NO_DATA_XFER;
+ break;
+ default:
+ srb->flags = AAC_SRB_FLAGS_UNSPECIFIED_DIRECTION;
+ cm->cm_flags |= AAC_CMD_DATAIN | AAC_CMD_DATAOUT;
+ break;
+ }
+
+ switch(ccb->ccb_h.func_code) {
+ case XPT_SCSI_IO:
+ {
+ struct ccb_scsiio *csio = &ccb->csio;
+
+ srb->function = AAC_SRB_FUNC_EXECUTE_SCSI;
+
+ /*
+ * Copy the CDB into the SRB. It's only 6-16 bytes,
+ * so a copy is not too expensive.
+ */
+ srb->cdb_len = csio->cdb_len;
+ if (ccb->ccb_h.flags & CAM_CDB_POINTER)
+ bcopy(csio->cdb_io.cdb_ptr, (u_int8_t *)&srb->cdb[0],
+ srb->cdb_len);
+ else
+ bcopy(csio->cdb_io.cdb_bytes, (u_int8_t *)&srb->cdb[0],
+ srb->cdb_len);
+
+ /* Map the s/g list. XXX 32bit addresses only! */
+ if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
+ if ((ccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
+ srb->data_len = csio->dxfer_len;
+ if (ccb->ccb_h.flags & CAM_DATA_PHYS) {
+ srb->sg_map32.SgCount = 1;
+ srb->sg_map32.SgEntry[0].SgAddress =
+ (u_int32_t)csio->data_ptr;
+ srb->sg_map32.SgEntry[0].SgByteCount =
+ csio->dxfer_len;
+ } else {
+ /*
+ * Arrange things so that the S/G
+ * map will get set up automagically
+ */
+ cm->cm_data = (void *)csio->data_ptr;
+ cm->cm_datalen = csio->dxfer_len;
+ cm->cm_sgtable = &srb->sg_map32;
+ }
+ } else {
+ /* XXX Need to handle multiple s/g elements */
+ panic("aac_cam: multiple s/g elements");
+ }
+ } else {
+ srb->sg_map32.SgCount = 0;
+ srb->sg_map32.SgEntry[0].SgByteCount = 0;
+ srb->data_len = 0;
+ }
+
+ break;
+ }
+ case XPT_RESET_DEV:
+ if (!(sc->quirks & AAC_QUIRK_CAM_NORESET)) {
+ srb->function = AAC_SRB_FUNC_RESET_DEVICE;
+ break;
+ } else {
+ ccb->ccb_h.status = CAM_REQ_CMP;
+ xpt_done(ccb);
+ return;
+ }
+ default:
+ break;
+ }
+
+ srb->bus = cam_sim_bus(sim); /* Bus number relative to the card */
+ srb->target = ccb->ccb_h.target_id;
+ srb->lun = ccb->ccb_h.target_lun;
+ srb->timeout = ccb->ccb_h.timeout; /* XXX */
+ srb->retry_limit = 0;
+
+ cm->cm_complete = aac_cam_complete;
+ cm->cm_private = ccb;
+ cm->cm_timestamp = time_second;
+ cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE;
+
+ fib->Header.XferState =
+ AAC_FIBSTATE_HOSTOWNED |
+ AAC_FIBSTATE_INITIALISED |
+ AAC_FIBSTATE_FROMHOST |
+ AAC_FIBSTATE_REXPECTED |
+ AAC_FIBSTATE_NORM;
+ fib->Header.Command = ScsiPortCommand;
+ fib->Header.Size = sizeof(struct aac_fib_header) +
+ sizeof(struct aac_srb32);
+
+ aac_enqueue_ready(cm);
+ aac_startio(cm->cm_sc);
+
+ return;
+}
+
+static void
+aac_cam_poll(struct cam_sim *sim)
+{
+ /*
+ * Pinging the interrupt routine isn't very safe, nor is it
+ * really necessary. Do nothing.
+ */
+}
+
+static void
+aac_cam_complete(struct aac_command *cm)
+{
+ union ccb *ccb;
+ struct aac_srb_response *srbr;
+ struct aac_softc *sc;
+
+ debug_called(2);
+
+ sc = cm->cm_sc;
+ ccb = cm->cm_private;
+ srbr = (struct aac_srb_response *)&cm->cm_fib->data[0];
+
+ if (srbr->fib_status != 0) {
+ device_printf(sc->aac_dev, "Passthru FIB failed!\n");
+ ccb->ccb_h.status = CAM_REQ_ABORTED;
+ } else {
+ /*
+ * The SRB error codes just happen to match the CAM error
+ * codes. How convienient!
+ */
+ ccb->ccb_h.status = srbr->srb_status;
+
+ /* Take care of SCSI_IO ops. */
+ if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
+ u_int8_t command, device;
+
+ ccb->csio.scsi_status = srbr->scsi_status;
+
+ /* Take care of autosense */
+ if (srbr->sense_len) {
+ int sense_len, scsi_sense_len;
+
+ scsi_sense_len = sizeof(struct scsi_sense_data);
+ bzero(&ccb->csio.sense_data, scsi_sense_len);
+ sense_len = (srbr->sense_len >
+ scsi_sense_len) ? scsi_sense_len :
+ srbr->sense_len;
+ bcopy(&srbr->sense[0], &ccb->csio.sense_data,
+ srbr->sense_len);
+ ccb->csio.sense_len = sense_len;
+ ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
+ scsi_sense_print(&ccb->csio);
+ }
+
+ /* If this is an inquiry command, fake things out */
+ if (ccb->ccb_h.flags & CAM_CDB_POINTER)
+ command = ccb->csio.cdb_io.cdb_ptr[0];
+ else
+ command = ccb->csio.cdb_io.cdb_bytes[0];
+
+ if ((command == INQUIRY) &&
+ (ccb->ccb_h.status == CAM_REQ_CMP)) {
+ device = ccb->csio.data_ptr[0] & 0x1f;
+ /*
+ * We want DASD and PROC devices to only be
+ * visible through the pass device.
+ */
+ if ((device == T_DIRECT) ||
+ (device == T_PROCESSOR) ||
+ (sc->quirks & AAC_QUIRK_CAM_PASSONLY))
+ ccb->csio.data_ptr[0] =
+ ((device & 0xe0) | T_NODEVICE);
+ }
+ }
+ }
+
+ aac_release_command(cm);
+
+ xpt_done(ccb);
+
+ return;
+}
+
+static u_int32_t
+aac_cam_reset_bus(struct cam_sim *sim, union ccb *ccb)
+{
+ struct aac_fib *fib;
+ struct aac_softc *sc;
+ struct aac_cam *camsc;
+ struct aac_vmioctl *vmi;
+ struct aac_resetbus *rbc;
+ int e;
+
+ camsc = (struct aac_cam *)cam_sim_softc(sim);
+ sc = camsc->inf->aac_sc;
+
+ if (sc == NULL) {
+ printf("Null sc?\n");
+ return (CAM_REQ_ABORTED);
+ }
+
+ aac_alloc_sync_fib(sc, &fib, 0);
+
+ vmi = (struct aac_vmioctl *)&fib->data[0];
+ vmi->Command = VM_Ioctl;
+ vmi->ObjType = FT_DRIVE;
+ vmi->MethId = sc->scsi_method_id;
+ vmi->ObjId = 0;
+ vmi->IoctlCmd = ResetBus;
+
+ rbc = (struct aac_resetbus *)&vmi->IoctlBuf[0];
+ rbc->BusNumber = cam_sim_bus(sim);
+
+ e = aac_sync_fib(sc, ContainerCommand, 0, fib,
+ sizeof(struct aac_vmioctl));
+ if (e) {
+ device_printf(sc->aac_dev, "Error 0x%x sending passthrough\n",
+ e);
+ aac_release_sync_fib(sc);
+ return (CAM_REQ_ABORTED);
+ }
+
+ aac_release_sync_fib(sc);
+ return (CAM_REQ_CMP);
+}
+
+static u_int32_t
+aac_cam_abort_ccb(struct cam_sim *sim, union ccb *ccb)
+{
+ return (CAM_UA_ABORT);
+}
+
+static u_int32_t
+aac_cam_term_io(struct cam_sim *sim, union ccb *ccb)
+{
+ return (CAM_UA_TERMIO);
+}
+
+static int
+aac_cam_get_tran_settings(struct aac_softc *sc, struct ccb_trans_settings *cts, u_int32_t handle)
+{
+ struct aac_fib *fib;
+ struct aac_vmioctl *vmi;
+ struct aac_vmi_devinfo_resp *vmi_resp;
+ int error;
+
+ aac_alloc_sync_fib(sc, &fib, 0);
+ vmi = (struct aac_vmioctl *)&fib->data[0];
+
+ vmi->Command = VM_Ioctl;
+ vmi->ObjType = FT_DRIVE;
+ vmi->MethId = sc->scsi_method_id;
+ vmi->ObjId = handle;
+ vmi->IoctlCmd = GetDeviceProbeInfo;
+
+ error = aac_sync_fib(sc, ContainerCommand, 0, fib,
+ sizeof(struct aac_vmioctl));
+ if (error) {
+ device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n",
+ error);
+ aac_release_sync_fib(sc);
+ return (CAM_REQ_INVALID);
+ }
+
+ vmi_resp = (struct aac_vmi_devinfo_resp *)&fib->data[0];
+ if (vmi_resp->Status != ST_OK) {
+ device_printf(sc->aac_dev, "VM_Ioctl returned %d\n",
+ vmi_resp->Status);
+ aac_release_sync_fib(sc);
+ return (CAM_REQ_CMP_ERR);
+ }
+
+ cts->bus_width = ((vmi_resp->Inquiry7 & 0x60) >> 5);
+ if (vmi_resp->ScsiRate) {
+ cts->sync_period =
+ scsi_calc_syncparam((10000 / vmi_resp->ScsiRate));
+ cts->sync_offset = vmi_resp->ScsiOffset;
+ } else {
+ cts->sync_period = 0;
+ cts->sync_offset = 0;
+ }
+ cts->flags &= ~(CCB_TRANS_DISC_ENB | CCB_TRANS_TAG_ENB);
+ cts->valid = CCB_TRANS_DISC_VALID |
+ CCB_TRANS_SYNC_RATE_VALID |
+ CCB_TRANS_SYNC_OFFSET_VALID |
+ CCB_TRANS_BUS_WIDTH_VALID |
+ CCB_TRANS_TQ_VALID;
+
+ aac_release_sync_fib(sc);
+ return (CAM_REQ_CMP);
+}
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