[dragonfly.git] / sys / dev / raid / mfi / mfi_cam.c

/*-
 * Copyright 2007 Scott Long
 * 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.
 */
/*-
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *            Copyright 1994-2009 The FreeBSD Project.
 *            All rights reserved.
 *
 * 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 FREEBSD PROJECT``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 FREEBSD PROJECT 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.
 *
 * The views and conclusions contained in the software and documentation
 * are those of the authors and should not be interpreted as representing
 * official policies,either expressed or implied, of the FreeBSD Project.
 *
 * $FreeBSD: src/sys/dev/mfi/mfi_cam.c,v 1.6 2011/06/28 08:36:48 kevlo Exp $
 */

#include "opt_mfi.h"

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/eventhandler.h>
#include <sys/rman.h>
#include <sys/bus_dma.h>
#include <sys/buf2.h>
#include <sys/ioccom.h>
#include <sys/uio.h>
#include <sys/proc.h>
#include <sys/signalvar.h>

#include <bus/cam/cam.h>
#include <bus/cam/cam_ccb.h>
#include <bus/cam/cam_debug.h>
#include <bus/cam/cam_sim.h>
#include <bus/cam/cam_xpt_sim.h>
#include <bus/cam/scsi/scsi_all.h>
#include <bus/cam/scsi/scsi_message.h>

#include <machine/md_var.h>

#include <dev/raid/mfi/mfireg.h>
#include <dev/raid/mfi/mfi_ioctl.h>
#include <dev/raid/mfi/mfivar.h>

struct mfip_softc {
	device_t	dev;
	struct mfi_softc *mfi_sc;
	struct cam_devq *devq;
	struct cam_sim	*sim;
	struct cam_path	*path;
};

static int	mfip_probe(device_t);
static int	mfip_attach(device_t);
static int	mfip_detach(device_t);
static void	mfip_cam_action(struct cam_sim *, union ccb *);
static void	mfip_cam_poll(struct cam_sim *);
static struct mfi_command * mfip_start(void *);
static void	mfip_done(struct mfi_command *cm);

static devclass_t	mfip_devclass;
static device_method_t	mfip_methods[] = {
	DEVMETHOD(device_probe,		mfip_probe),
	DEVMETHOD(device_attach,	mfip_attach),
	DEVMETHOD(device_detach,	mfip_detach),
	{0, 0}
};
static driver_t mfip_driver = {
	"mfip",
	mfip_methods,
	sizeof(struct mfip_softc)
};
DRIVER_MODULE(mfip, mfi, mfip_driver, mfip_devclass, NULL, NULL);
MODULE_DEPEND(mfip, cam, 1, 1, 1);
MODULE_DEPEND(mfip, mfi, 1, 1, 1);

#define ccb_mfip_ptr sim_priv.entries[0].ptr

static int
mfip_probe(device_t dev)
{

	device_set_desc(dev, "SCSI Passthrough Bus");
	return (0);
}

static int
mfip_attach(device_t dev)
{
	struct mfip_softc *sc;
	struct mfi_softc *mfisc;

	sc = device_get_softc(dev);
	if (sc == NULL)
		return (EINVAL);

	mfisc = device_get_softc(device_get_parent(dev));
	sc->dev = dev;
	sc->mfi_sc = mfisc;
	mfisc->mfi_cam_start = mfip_start;

	if ((sc->devq = cam_simq_alloc(MFI_SCSI_MAX_CMDS)) == NULL)
		return (ENOMEM);

	sc->sim = cam_sim_alloc(mfip_cam_action, mfip_cam_poll, "mfi", sc,
				device_get_unit(dev), &mfisc->mfi_io_lock, 1,
				MFI_SCSI_MAX_CMDS, sc->devq);
	if (sc->sim == NULL) {
		device_printf(dev, "CAM SIM attach failed\n");
		return (EINVAL);
	}

	lockmgr(&mfisc->mfi_io_lock, LK_EXCLUSIVE);
	if (xpt_bus_register(sc->sim, 0) != 0) {
		device_printf(dev, "XPT bus registration failed\n");
		cam_sim_free(sc->sim);
		lockmgr(&mfisc->mfi_io_lock, LK_RELEASE);
		return (EINVAL);
	}
	lockmgr(&mfisc->mfi_io_lock, LK_RELEASE);

	return (0);
}

static int
mfip_detach(device_t dev)
{
	struct mfip_softc *sc;

	sc = device_get_softc(dev);
	if (sc == NULL)
		return (EINVAL);

	if (sc->sim != NULL) {
		lockmgr(&sc->mfi_sc->mfi_io_lock, LK_EXCLUSIVE);
		xpt_bus_deregister(cam_sim_path(sc->sim));
		cam_sim_free(sc->sim);
		lockmgr(&sc->mfi_sc->mfi_io_lock, LK_RELEASE);
	}

	return (0);
}

static void
mfip_cam_action(struct cam_sim *sim, union ccb *ccb)
{
	struct mfip_softc *sc = cam_sim_softc(sim);
	struct mfi_softc *mfisc = sc->mfi_sc;

	KKASSERT(lockstatus(&mfisc->mfi_io_lock, curthread) != 0);

	switch (ccb->ccb_h.func_code) {
	case XPT_PATH_INQ:
	{
		struct ccb_pathinq *cpi = &ccb->cpi;

		cpi->version_num = 1;
		cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
		cpi->target_sprt = 0;
		cpi->hba_misc = PIM_NOBUSRESET|PIM_SEQSCAN;
		cpi->hba_eng_cnt = 0;
		cpi->max_target = MFI_SCSI_MAX_TARGETS;
		cpi->max_lun = MFI_SCSI_MAX_LUNS;
		cpi->initiator_id = MFI_SCSI_INITIATOR_ID;
		strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
		strncpy(cpi->hba_vid, "LSI", HBA_IDLEN);
		strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
		cpi->unit_number = cam_sim_unit(sim);
		cpi->bus_id = cam_sim_bus(sim);
		cpi->base_transfer_speed = 150000;
		cpi->transport = XPORT_SAS;
		cpi->transport_version = 0;
		cpi->protocol = PROTO_SCSI;
		cpi->protocol_version = SCSI_REV_2;
		cpi->ccb_h.status = CAM_REQ_CMP;
		break;
	}
	case XPT_RESET_BUS:
		ccb->ccb_h.status = CAM_REQ_CMP;
		break;
	case XPT_RESET_DEV:
		ccb->ccb_h.status = CAM_REQ_CMP;
		break;
	case XPT_GET_TRAN_SETTINGS:
	{
		struct ccb_trans_settings_sas *sas =
		    &ccb->cts.xport_specific.sas;

		ccb->cts.protocol = PROTO_SCSI;
		ccb->cts.protocol_version = SCSI_REV_2;
		ccb->cts.transport = XPORT_SAS;
		ccb->cts.transport_version = 0;

		sas->valid &= ~CTS_SAS_VALID_SPEED;
		sas->bitrate = 150000;

		ccb->ccb_h.status = CAM_REQ_CMP;
		break;
	}
	case XPT_SET_TRAN_SETTINGS:
		ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
		break;
	case XPT_SCSI_IO:
	{
		struct ccb_hdr		*ccbh = &ccb->ccb_h;
		struct ccb_scsiio	*csio = &ccb->csio;

		ccbh->status = CAM_REQ_INPROG;
		if (csio->cdb_len > MFI_SCSI_MAX_CDB_LEN) {
			ccbh->status = CAM_REQ_INVALID;
			break;
		}
		if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
			if (ccbh->flags & CAM_DATA_PHYS) {
				ccbh->status = CAM_REQ_INVALID;
				break;
			}
			if (ccbh->flags & CAM_SCATTER_VALID) {
				ccbh->status = CAM_REQ_INVALID;
				break;
			}
		}

		ccbh->ccb_mfip_ptr = sc;
		TAILQ_INSERT_TAIL(&mfisc->mfi_cam_ccbq, ccbh, sim_links.tqe);
		mfi_startio(mfisc);
		return;
	}
	default:
		ccb->ccb_h.status = CAM_REQ_INVALID;
		break;
	}

	xpt_done(ccb);
	return;
}

static struct mfi_command *
mfip_start(void *data)
{
	union ccb *ccb = data;
	struct ccb_hdr *ccbh = &ccb->ccb_h;
	struct ccb_scsiio *csio = &ccb->csio;
	struct mfip_softc *sc;
	struct mfi_pass_frame *pt;
	struct mfi_command *cm;
	uint32_t context = 0;

	sc = ccbh->ccb_mfip_ptr;

	if ((cm = mfi_dequeue_free(sc->mfi_sc)) == NULL)
		return (NULL);

	/* Zero out the MFI frame */
	context = cm->cm_frame->header.context;
	bzero(cm->cm_frame, sizeof(union mfi_frame));
	cm->cm_frame->header.context = context;

	pt = &cm->cm_frame->pass;
	pt->header.cmd = MFI_CMD_PD_SCSI_IO;
	pt->header.cmd_status = 0;
	pt->header.scsi_status = 0;
	pt->header.target_id = ccbh->target_id;
	pt->header.lun_id = ccbh->target_lun;
	pt->header.flags = 0;
	pt->header.timeout = 0;
	pt->header.data_len = csio->dxfer_len;
	pt->header.sense_len = MFI_SENSE_LEN;
	pt->header.cdb_len = csio->cdb_len;
	pt->sense_addr_lo = cm->cm_sense_busaddr;
	pt->sense_addr_hi = 0;
	if (ccbh->flags & CAM_CDB_POINTER)
		bcopy(csio->cdb_io.cdb_ptr, &pt->cdb[0], csio->cdb_len);
	else
		bcopy(csio->cdb_io.cdb_bytes, &pt->cdb[0], csio->cdb_len);
	cm->cm_complete = mfip_done;
	cm->cm_private = ccb;
	cm->cm_sg = &pt->sgl;
	cm->cm_total_frame_size = MFI_PASS_FRAME_SIZE;
	cm->cm_data = csio->data_ptr;
	cm->cm_len = csio->dxfer_len;
	switch (ccbh->flags & CAM_DIR_MASK) {
	case CAM_DIR_IN:
		cm->cm_flags = MFI_CMD_DATAIN;
		break;
	case CAM_DIR_OUT:
		cm->cm_flags = MFI_CMD_DATAOUT;
		break;
	case CAM_DIR_NONE:
	default:
		cm->cm_data = NULL;
		cm->cm_len = 0;
		cm->cm_flags = 0;
		break;
	}

	TAILQ_REMOVE(&sc->mfi_sc->mfi_cam_ccbq, ccbh, sim_links.tqe);
	return (cm);
}

static void
mfip_done(struct mfi_command *cm)
{
	union ccb *ccb = cm->cm_private;
	struct ccb_hdr *ccbh = &ccb->ccb_h;
	struct ccb_scsiio *csio = &ccb->csio;
	struct mfi_pass_frame *pt;

	pt = &cm->cm_frame->pass;

	switch (pt->header.cmd_status) {
	case MFI_STAT_OK:
	{
		uint8_t command, device;

		ccbh->status = CAM_REQ_CMP;
		csio->scsi_status = pt->header.scsi_status;
		if (ccbh->flags & CAM_CDB_POINTER)
			command = csio->cdb_io.cdb_ptr[0];
		else
			command = csio->cdb_io.cdb_bytes[0];
		if (command == INQUIRY) {
			device = csio->data_ptr[0] & 0x1f;
			if ((device == T_DIRECT) || (device == T_PROCESSOR))
				csio->data_ptr[0] =
				     (csio->data_ptr[0] & 0xe0) | T_NODEVICE;
		}
		break;
	}
	case MFI_STAT_SCSI_DONE_WITH_ERROR:
	{
		int sense_len;

		ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
		csio->scsi_status = pt->header.scsi_status;
		sense_len = min(pt->header.sense_len, sizeof(struct scsi_sense_data));
		bzero(&csio->sense_data, sizeof(struct scsi_sense_data));
		bcopy(&cm->cm_sense->data[0], &csio->sense_data, sense_len);
		break;
	}
	case MFI_STAT_DEVICE_NOT_FOUND:
		ccbh->status = CAM_SEL_TIMEOUT;
		break;
	case MFI_STAT_SCSI_IO_FAILED:
		ccbh->status = CAM_REQ_CMP_ERR;
		csio->scsi_status = pt->header.scsi_status;
		break;
	default:
		ccbh->status = CAM_REQ_CMP_ERR;
		csio->scsi_status = pt->header.scsi_status;
		break;
	}

	mfi_release_command(cm);
	xpt_done(ccb);
}

static void
mfip_cam_poll(struct cam_sim *sim)
{
	return;
}
Commit	Line	Data
249d29c8 SW	1	/*-
	2	* Copyright 2007 Scott Long
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	*
	14	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
	15	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	16	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	17	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	18	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	19	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	20	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	21	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	22	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	23	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	24	* SUCH DAMAGE.
17566092 SW	25	*/
	26	/*-
	27	* Redistribution and use in source and binary forms, with or without
	28	* modification, are permitted provided that the following conditions
	29	* are met:
	30	*
	31	* Copyright 1994-2009 The FreeBSD Project.
	32	* All rights reserved.
	33	*
	34	* 1. Redistributions of source code must retain the above copyright
	35	* notice, this list of conditions and the following disclaimer.
	36	* 2. Redistributions in binary form must reproduce the above copyright
	37	* notice, this list of conditions and the following disclaimer in the
	38	* documentation and/or other materials provided with the distribution.
	39	*
	40	* THIS SOFTWARE IS PROVIDED BY THE FREEBSD PROJECT``AS IS'' AND
	41	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
	42	* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	43	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FREEBSD PROJECT OR
	44	* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	45	* EXEMPLARY,OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
	46	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
	47	* PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY THEORY
	48	* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
	49	* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
	50	* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	51	*
	52	* The views and conclusions contained in the software and documentation
	53	* are those of the authors and should not be interpreted as representing
	54	* official policies,either expressed or implied, of the FreeBSD Project.
249d29c8	55	*
f26fa772	56	* $FreeBSD: src/sys/dev/mfi/mfi_cam.c,v 1.6 2011/06/28 08:36:48 kevlo Exp $
249d29c8 SW	57	*/
	58
	59	#include "opt_mfi.h"
	60
	61	#include <sys/param.h>
	62	#include <sys/systm.h>
	63	#include <sys/kernel.h>
	64	#include <sys/malloc.h>
	65	#include <sys/module.h>
	66	#include <sys/bus.h>
	67	#include <sys/conf.h>
	68	#include <sys/eventhandler.h>
	69	#include <sys/rman.h>
	70	#include <sys/bus_dma.h>
	71	#include <sys/buf2.h>
	72	#include <sys/ioccom.h>
	73	#include <sys/uio.h>
	74	#include <sys/proc.h>
	75	#include <sys/signalvar.h>
	76
	77	#include <bus/cam/cam.h>
	78	#include <bus/cam/cam_ccb.h>
	79	#include <bus/cam/cam_debug.h>
	80	#include <bus/cam/cam_sim.h>
	81	#include <bus/cam/cam_xpt_sim.h>
	82	#include <bus/cam/scsi/scsi_all.h>
	83	#include <bus/cam/scsi/scsi_message.h>
	84
249d29c8	85	#include <machine/md_var.h>
249d29c8 SW	86
	87	#include <dev/raid/mfi/mfireg.h>
	88	#include <dev/raid/mfi/mfi_ioctl.h>
	89	#include <dev/raid/mfi/mfivar.h>
	90
	91	struct mfip_softc {
	92	device_t dev;
	93	struct mfi_softc *mfi_sc;
	94	struct cam_devq *devq;
	95	struct cam_sim *sim;
	96	struct cam_path *path;
	97	};
	98
	99	static int mfip_probe(device_t);
	100	static int mfip_attach(device_t);
	101	static int mfip_detach(device_t);
	102	static void mfip_cam_action(struct cam_sim , union ccb );
	103	static void mfip_cam_poll(struct cam_sim *);
	104	static struct mfi_command * mfip_start(void *);
	105	static void mfip_done(struct mfi_command *cm);
	106
	107	static devclass_t mfip_devclass;
	108	static device_method_t mfip_methods[] = {
	109	DEVMETHOD(device_probe, mfip_probe),
	110	DEVMETHOD(device_attach, mfip_attach),
	111	DEVMETHOD(device_detach, mfip_detach),
	112	{0, 0}
	113	};
	114	static driver_t mfip_driver = {
	115	"mfip",
	116	mfip_methods,
	117	sizeof(struct mfip_softc)
	118	};
aa2b9d05	119	DRIVER_MODULE(mfip, mfi, mfip_driver, mfip_devclass, NULL, NULL);
249d29c8 SW	120	MODULE_DEPEND(mfip, cam, 1, 1, 1);
	121	MODULE_DEPEND(mfip, mfi, 1, 1, 1);
	122
	123	#define ccb_mfip_ptr sim_priv.entries[0].ptr
	124
	125	static int
	126	mfip_probe(device_t dev)
	127	{
	128
	129	device_set_desc(dev, "SCSI Passthrough Bus");
	130	return (0);
	131	}
	132
	133	static int
	134	mfip_attach(device_t dev)
	135	{
	136	struct mfip_softc *sc;
	137	struct mfi_softc *mfisc;
	138
	139	sc = device_get_softc(dev);
	140	if (sc == NULL)
	141	return (EINVAL);
	142
	143	mfisc = device_get_softc(device_get_parent(dev));
	144	sc->dev = dev;
	145	sc->mfi_sc = mfisc;
	146	mfisc->mfi_cam_start = mfip_start;
	147
	148	if ((sc->devq = cam_simq_alloc(MFI_SCSI_MAX_CMDS)) == NULL)
	149	return (ENOMEM);
	150
	151	sc->sim = cam_sim_alloc(mfip_cam_action, mfip_cam_poll, "mfi", sc,
	152	device_get_unit(dev), &mfisc->mfi_io_lock, 1,
	153	MFI_SCSI_MAX_CMDS, sc->devq);
	154	if (sc->sim == NULL) {
	155	device_printf(dev, "CAM SIM attach failed\n");
	156	return (EINVAL);
	157	}
	158
	159	lockmgr(&mfisc->mfi_io_lock, LK_EXCLUSIVE);
	160	if (xpt_bus_register(sc->sim, 0) != 0) {
	161	device_printf(dev, "XPT bus registration failed\n");
	162	cam_sim_free(sc->sim);
	163	lockmgr(&mfisc->mfi_io_lock, LK_RELEASE);
	164	return (EINVAL);
	165	}
	166	lockmgr(&mfisc->mfi_io_lock, LK_RELEASE);
	167
	168	return (0);
	169	}
	170
	171	static int
	172	mfip_detach(device_t dev)
	173	{
	174	struct mfip_softc *sc;
	175
	176	sc = device_get_softc(dev);
	177	if (sc == NULL)
	178	return (EINVAL);
	179
	180	if (sc->sim != NULL) {
	181	lockmgr(&sc->mfi_sc->mfi_io_lock, LK_EXCLUSIVE);
	182	xpt_bus_deregister(cam_sim_path(sc->sim));
	183	cam_sim_free(sc->sim);
184	lockmgr(&sc->mfi_sc->mfi_io_lock, LK_RELEASE);
185	}
186
187	return (0);
188	}
189
190	static void
191	mfip_cam_action(struct cam_sim sim, union ccb ccb)
192	{
193	struct mfip_softc *sc = cam_sim_softc(sim);
194	struct mfi_softc *mfisc = sc->mfi_sc;
195
196	KKASSERT(lockstatus(&mfisc->mfi_io_lock, curthread) != 0);
197
198	switch (ccb->ccb_h.func_code) {
199	case XPT_PATH_INQ:
200	{
201	struct ccb_pathinq *cpi = &ccb->cpi;
202
203	cpi->version_num = 1;
204	cpi->hba_inquiry = PI_SDTR_ABLE\|PI_TAG_ABLE\|PI_WIDE_16;
205	cpi->target_sprt = 0;
206	cpi->hba_misc = PIM_NOBUSRESET\|PIM_SEQSCAN;
207	cpi->hba_eng_cnt = 0;
208	cpi->max_target = MFI_SCSI_MAX_TARGETS;
209	cpi->max_lun = MFI_SCSI_MAX_LUNS;
210	cpi->initiator_id = MFI_SCSI_INITIATOR_ID;
211	strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
212	strncpy(cpi->hba_vid, "LSI", HBA_IDLEN);
213	strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
214	cpi->unit_number = cam_sim_unit(sim);
215	cpi->bus_id = cam_sim_bus(sim);
216	cpi->base_transfer_speed = 150000;
217	cpi->transport = XPORT_SAS;
218	cpi->transport_version = 0;
219	cpi->protocol = PROTO_SCSI;
220	cpi->protocol_version = SCSI_REV_2;
221	cpi->ccb_h.status = CAM_REQ_CMP;
222	break;
223	}
224	case XPT_RESET_BUS:
225	ccb->ccb_h.status = CAM_REQ_CMP;
226	break;
227	case XPT_RESET_DEV:
228	ccb->ccb_h.status = CAM_REQ_CMP;
229	break;
230	case XPT_GET_TRAN_SETTINGS:
231	{
232	struct ccb_trans_settings_sas *sas =
233	&ccb->cts.xport_specific.sas;
234
235	ccb->cts.protocol = PROTO_SCSI;
236	ccb->cts.protocol_version = SCSI_REV_2;
237	ccb->cts.transport = XPORT_SAS;
238	ccb->cts.transport_version = 0;
239
240	sas->valid &= ~CTS_SAS_VALID_SPEED;
241	sas->bitrate = 150000;
242
243	ccb->ccb_h.status = CAM_REQ_CMP;
244	break;
245	}
246	case XPT_SET_TRAN_SETTINGS:
247	ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
248	break;
249	case XPT_SCSI_IO:
250	{
251	struct ccb_hdr *ccbh = &ccb->ccb_h;
252	struct ccb_scsiio *csio = &ccb->csio;
253
254	ccbh->status = CAM_REQ_INPROG;
255	if (csio->cdb_len > MFI_SCSI_MAX_CDB_LEN) {
256	ccbh->status = CAM_REQ_INVALID;
257	break;
258	}
259	if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
260	if (ccbh->flags & CAM_DATA_PHYS) {
261	ccbh->status = CAM_REQ_INVALID;
262	break;
263	}
264	if (ccbh->flags & CAM_SCATTER_VALID) {
265	ccbh->status = CAM_REQ_INVALID;
266	break;
267	}
268	}
269
270	ccbh->ccb_mfip_ptr = sc;
271	TAILQ_INSERT_TAIL(&mfisc->mfi_cam_ccbq, ccbh, sim_links.tqe);
272	mfi_startio(mfisc);
273	return;
274	}
275	default:
276	ccb->ccb_h.status = CAM_REQ_INVALID;
277	break;
278	}
279
280	xpt_done(ccb);
281	return;
282	}
283
284	static struct mfi_command *
285	mfip_start(void *data)
286	{
287	union ccb *ccb = data;
288	struct ccb_hdr *ccbh = &ccb->ccb_h;
289	struct ccb_scsiio *csio = &ccb->csio;
290	struct mfip_softc *sc;
291	struct mfi_pass_frame *pt;
292	struct mfi_command *cm;
17566092	293	uint32_t context = 0;
249d29c8 SW	294
	295	sc = ccbh->ccb_mfip_ptr;
	296
	297	if ((cm = mfi_dequeue_free(sc->mfi_sc)) == NULL)
	298	return (NULL);
	299
17566092 SW	300	/* Zero out the MFI frame */
	301	context = cm->cm_frame->header.context;
	302	bzero(cm->cm_frame, sizeof(union mfi_frame));
	303	cm->cm_frame->header.context = context;
	304
249d29c8 SW	305	pt = &cm->cm_frame->pass;
	306	pt->header.cmd = MFI_CMD_PD_SCSI_IO;
	307	pt->header.cmd_status = 0;
	308	pt->header.scsi_status = 0;
	309	pt->header.target_id = ccbh->target_id;
	310	pt->header.lun_id = ccbh->target_lun;
	311	pt->header.flags = 0;
	312	pt->header.timeout = 0;
	313	pt->header.data_len = csio->dxfer_len;
	314	pt->header.sense_len = MFI_SENSE_LEN;
	315	pt->header.cdb_len = csio->cdb_len;
	316	pt->sense_addr_lo = cm->cm_sense_busaddr;
	317	pt->sense_addr_hi = 0;
	318	if (ccbh->flags & CAM_CDB_POINTER)
	319	bcopy(csio->cdb_io.cdb_ptr, &pt->cdb[0], csio->cdb_len);
	320	else
	321	bcopy(csio->cdb_io.cdb_bytes, &pt->cdb[0], csio->cdb_len);
	322	cm->cm_complete = mfip_done;
	323	cm->cm_private = ccb;
	324	cm->cm_sg = &pt->sgl;
	325	cm->cm_total_frame_size = MFI_PASS_FRAME_SIZE;
	326	cm->cm_data = csio->data_ptr;
	327	cm->cm_len = csio->dxfer_len;
	328	switch (ccbh->flags & CAM_DIR_MASK) {
	329	case CAM_DIR_IN:
	330	cm->cm_flags = MFI_CMD_DATAIN;
	331	break;
	332	case CAM_DIR_OUT:
	333	cm->cm_flags = MFI_CMD_DATAOUT;
	334	break;
	335	case CAM_DIR_NONE:
	336	default:
	337	cm->cm_data = NULL;
	338	cm->cm_len = 0;
	339	cm->cm_flags = 0;
	340	break;
	341	}
	342
	343	TAILQ_REMOVE(&sc->mfi_sc->mfi_cam_ccbq, ccbh, sim_links.tqe);
	344	return (cm);
	345	}
	346
	347	static void
	348	mfip_done(struct mfi_command *cm)
	349	{
	350	union ccb *ccb = cm->cm_private;
	351	struct ccb_hdr *ccbh = &ccb->ccb_h;
	352	struct ccb_scsiio *csio = &ccb->csio;
249d29c8 SW	353	struct mfi_pass_frame *pt;
249d29c8 SW	354
249d29c8 SW	355	pt = &cm->cm_frame->pass;
	356
	357	switch (pt->header.cmd_status) {
	358	case MFI_STAT_OK:
	359	{
	360	uint8_t command, device;
	361
	362	ccbh->status = CAM_REQ_CMP;
	363	csio->scsi_status = pt->header.scsi_status;
	364	if (ccbh->flags & CAM_CDB_POINTER)
769308d7	365	command = csio->cdb_io.cdb_ptr[0];
249d29c8	366	else
769308d7	367	command = csio->cdb_io.cdb_bytes[0];
249d29c8	368	if (command == INQUIRY) {
769308d7	369	device = csio->data_ptr[0] & 0x1f;
249d29c8 SW	370	if ((device == T_DIRECT) \|\| (device == T_PROCESSOR))
249d29c8 SW	371	csio->data_ptr[0] =
ede4fee5	372	(csio->data_ptr[0] & 0xe0) \| T_NODEVICE;
249d29c8 SW	373	}
	374	break;
	375	}
	376	case MFI_STAT_SCSI_DONE_WITH_ERROR:
	377	{
	378	int sense_len;
	379
	380	ccbh->status = CAM_SCSI_STATUS_ERROR \| CAM_AUTOSNS_VALID;
	381	csio->scsi_status = pt->header.scsi_status;
	382	sense_len = min(pt->header.sense_len, sizeof(struct scsi_sense_data));
	383	bzero(&csio->sense_data, sizeof(struct scsi_sense_data));
	384	bcopy(&cm->cm_sense->data[0], &csio->sense_data, sense_len);
	385	break;
	386	}
	387	case MFI_STAT_DEVICE_NOT_FOUND:
	388	ccbh->status = CAM_SEL_TIMEOUT;
	389	break;
	390	case MFI_STAT_SCSI_IO_FAILED:
	391	ccbh->status = CAM_REQ_CMP_ERR;
	392	csio->scsi_status = pt->header.scsi_status;
	393	break;
	394	default:
	395	ccbh->status = CAM_REQ_CMP_ERR;
	396	csio->scsi_status = pt->header.scsi_status;
	397	break;
	398	}
	399
	400	mfi_release_command(cm);
	401	xpt_done(ccb);
	402	}
	403
	404	static void
	405	mfip_cam_poll(struct cam_sim *sim)
	406	{
	407	return;
	408	}