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mfi.c revision 1.62
      1 /* $NetBSD: mfi.c,v 1.62 2019/11/10 21:16:35 chs Exp $ */
      2 /* $OpenBSD: mfi.c,v 1.66 2006/11/28 23:59:45 dlg Exp $ */
      3 
      4 /*
      5  * Copyright (c) 2012 Manuel Bouyer.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 /*
     29  * Copyright (c) 2006 Marco Peereboom <marco (at) peereboom.us>
     30  *
     31  * Permission to use, copy, modify, and distribute this software for any
     32  * purpose with or without fee is hereby granted, provided that the above
     33  * copyright notice and this permission notice appear in all copies.
     34  *
     35  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     36  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     37  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     38  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     39  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     40  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     41  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     42  */
     43 
     44  /*-
     45  * Redistribution and use in source and binary forms, with or without
     46  * modification, are permitted provided that the following conditions
     47  * are met:
     48  *
     49  *            Copyright 1994-2009 The FreeBSD Project.
     50  *            All rights reserved.
     51  *
     52  * 1. Redistributions of source code must retain the above copyright
     53  *    notice, this list of conditions and the following disclaimer.
     54  * 2. Redistributions in binary form must reproduce the above copyright
     55  *    notice, this list of conditions and the following disclaimer in the
     56  *    documentation and/or other materials provided with the distribution.
     57  *
     58  *    THIS SOFTWARE IS PROVIDED BY THE FREEBSD PROJECT``AS IS'' AND
     59  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     60  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     61  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FREEBSD PROJECT OR
     62  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     63  * EXEMPLARY,OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     64  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     65  * PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY THEORY
     66  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     67  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     68  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     69  *
     70  * The views and conclusions contained in the software and documentation
     71  * are those of the authors and should not be interpreted as representing
     72  * official policies,either expressed or implied, of the FreeBSD Project.
     73  */
     74 
     75 #include <sys/cdefs.h>
     76 __KERNEL_RCSID(0, "$NetBSD: mfi.c,v 1.62 2019/11/10 21:16:35 chs Exp $");
     77 
     78 #include "bio.h"
     79 
     80 #include <sys/param.h>
     81 #include <sys/systm.h>
     82 #include <sys/buf.h>
     83 #include <sys/ioctl.h>
     84 #include <sys/device.h>
     85 #include <sys/kernel.h>
     86 #include <sys/malloc.h>
     87 #include <sys/proc.h>
     88 #include <sys/cpu.h>
     89 #include <sys/conf.h>
     90 #include <sys/kauth.h>
     91 
     92 #include <uvm/uvm_param.h>
     93 
     94 #include <sys/bus.h>
     95 
     96 #include <dev/scsipi/scsipi_all.h>
     97 #include <dev/scsipi/scsi_all.h>
     98 #include <dev/scsipi/scsi_spc.h>
     99 #include <dev/scsipi/scsipi_disk.h>
    100 #include <dev/scsipi/scsi_disk.h>
    101 #include <dev/scsipi/scsiconf.h>
    102 
    103 #include <dev/ic/mfireg.h>
    104 #include <dev/ic/mfivar.h>
    105 #include <dev/ic/mfiio.h>
    106 
    107 #if NBIO > 0
    108 #include <dev/biovar.h>
    109 #endif /* NBIO > 0 */
    110 
    111 #include "ioconf.h"
    112 
    113 #ifdef MFI_DEBUG
    114 uint32_t	mfi_debug = 0
    115 /*		    | MFI_D_CMD  */
    116 /*		    | MFI_D_INTR */
    117 /*		    | MFI_D_MISC */
    118 /*		    | MFI_D_DMA */
    119 /*		    | MFI_D_IOCTL */
    120 /*		    | MFI_D_RW */
    121 /*		    | MFI_D_MEM */
    122 /*		    | MFI_D_CCB */
    123 /*		    | MFI_D_SYNC */
    124 		;
    125 #endif
    126 
    127 static void		mfi_scsipi_request(struct scsipi_channel *,
    128 				scsipi_adapter_req_t, void *);
    129 static void		mfiminphys(struct buf *bp);
    130 
    131 static struct mfi_ccb	*mfi_get_ccb(struct mfi_softc *);
    132 static void		mfi_put_ccb(struct mfi_ccb *);
    133 static int		mfi_init_ccb(struct mfi_softc *);
    134 
    135 static struct mfi_mem	*mfi_allocmem(struct mfi_softc *, size_t);
    136 static void		mfi_freemem(struct mfi_softc *, struct mfi_mem **);
    137 
    138 static int		mfi_transition_firmware(struct mfi_softc *);
    139 static int		mfi_initialize_firmware(struct mfi_softc *);
    140 static int		mfi_get_info(struct mfi_softc *);
    141 static int		mfi_get_bbu(struct mfi_softc *,
    142 			    struct mfi_bbu_status *);
    143 /* return codes for mfi_get_bbu */
    144 #define MFI_BBU_GOOD	0
    145 #define MFI_BBU_BAD	1
    146 #define MFI_BBU_UNKNOWN	2
    147 static uint32_t		mfi_read(struct mfi_softc *, bus_size_t);
    148 static void		mfi_write(struct mfi_softc *, bus_size_t, uint32_t);
    149 static int		mfi_poll(struct mfi_ccb *);
    150 static int		mfi_create_sgl(struct mfi_ccb *, int);
    151 
    152 /* commands */
    153 static int		mfi_scsi_ld(struct mfi_ccb *, struct scsipi_xfer *);
    154 static int		mfi_scsi_ld_io(struct mfi_ccb *, struct scsipi_xfer *,
    155 				uint64_t, uint32_t);
    156 static void		mfi_scsi_ld_done(struct mfi_ccb *);
    157 static void		mfi_scsi_xs_done(struct mfi_ccb *, int, int);
    158 static int		mfi_mgmt_internal(struct mfi_softc *, uint32_t,
    159 			    uint32_t, uint32_t, void *, uint8_t *, bool);
    160 static int		mfi_mgmt(struct mfi_ccb *,struct scsipi_xfer *,
    161 			    uint32_t, uint32_t, uint32_t, void *, uint8_t *);
    162 static void		mfi_mgmt_done(struct mfi_ccb *);
    163 
    164 #if NBIO > 0
    165 static int		mfi_ioctl(device_t, u_long, void *);
    166 static int		mfi_ioctl_inq(struct mfi_softc *, struct bioc_inq *);
    167 static int		mfi_ioctl_vol(struct mfi_softc *, struct bioc_vol *);
    168 static int		mfi_ioctl_disk(struct mfi_softc *, struct bioc_disk *);
    169 static int		mfi_ioctl_alarm(struct mfi_softc *,
    170 				struct bioc_alarm *);
    171 static int		mfi_ioctl_blink(struct mfi_softc *sc,
    172 				struct bioc_blink *);
    173 static int		mfi_ioctl_setstate(struct mfi_softc *,
    174 				struct bioc_setstate *);
    175 static int		mfi_bio_hs(struct mfi_softc *, int, int, void *);
    176 static int		mfi_create_sensors(struct mfi_softc *);
    177 static int		mfi_destroy_sensors(struct mfi_softc *);
    178 static void		mfi_sensor_refresh(struct sysmon_envsys *,
    179 				envsys_data_t *);
    180 #endif /* NBIO > 0 */
    181 static bool		mfi_shutdown(device_t, int);
    182 static bool		mfi_suspend(device_t, const pmf_qual_t *);
    183 static bool		mfi_resume(device_t, const pmf_qual_t *);
    184 
    185 static dev_type_open(mfifopen);
    186 static dev_type_close(mfifclose);
    187 static dev_type_ioctl(mfifioctl);
    188 const struct cdevsw mfi_cdevsw = {
    189 	.d_open = mfifopen,
    190 	.d_close = mfifclose,
    191 	.d_read = noread,
    192 	.d_write = nowrite,
    193 	.d_ioctl = mfifioctl,
    194 	.d_stop = nostop,
    195 	.d_tty = notty,
    196 	.d_poll = nopoll,
    197 	.d_mmap = nommap,
    198 	.d_kqfilter = nokqfilter,
    199 	.d_discard = nodiscard,
    200 	.d_flag = D_OTHER
    201 };
    202 
    203 static uint32_t 	mfi_xscale_fw_state(struct mfi_softc *sc);
    204 static void 		mfi_xscale_intr_ena(struct mfi_softc *sc);
    205 static void 		mfi_xscale_intr_dis(struct mfi_softc *sc);
    206 static int 		mfi_xscale_intr(struct mfi_softc *sc);
    207 static void 		mfi_xscale_post(struct mfi_softc *sc, struct mfi_ccb *ccb);
    208 
    209 static const struct mfi_iop_ops mfi_iop_xscale = {
    210 	mfi_xscale_fw_state,
    211 	mfi_xscale_intr_dis,
    212 	mfi_xscale_intr_ena,
    213 	mfi_xscale_intr,
    214 	mfi_xscale_post,
    215 	mfi_scsi_ld_io,
    216 };
    217 
    218 static uint32_t 	mfi_ppc_fw_state(struct mfi_softc *sc);
    219 static void 		mfi_ppc_intr_ena(struct mfi_softc *sc);
    220 static void 		mfi_ppc_intr_dis(struct mfi_softc *sc);
    221 static int 		mfi_ppc_intr(struct mfi_softc *sc);
    222 static void 		mfi_ppc_post(struct mfi_softc *sc, struct mfi_ccb *ccb);
    223 
    224 static const struct mfi_iop_ops mfi_iop_ppc = {
    225 	mfi_ppc_fw_state,
    226 	mfi_ppc_intr_dis,
    227 	mfi_ppc_intr_ena,
    228 	mfi_ppc_intr,
    229 	mfi_ppc_post,
    230 	mfi_scsi_ld_io,
    231 };
    232 
    233 uint32_t	mfi_gen2_fw_state(struct mfi_softc *sc);
    234 void		mfi_gen2_intr_ena(struct mfi_softc *sc);
    235 void		mfi_gen2_intr_dis(struct mfi_softc *sc);
    236 int		mfi_gen2_intr(struct mfi_softc *sc);
    237 void		mfi_gen2_post(struct mfi_softc *sc, struct mfi_ccb *ccb);
    238 
    239 static const struct mfi_iop_ops mfi_iop_gen2 = {
    240 	mfi_gen2_fw_state,
    241 	mfi_gen2_intr_dis,
    242 	mfi_gen2_intr_ena,
    243 	mfi_gen2_intr,
    244 	mfi_gen2_post,
    245 	mfi_scsi_ld_io,
    246 };
    247 
    248 u_int32_t	mfi_skinny_fw_state(struct mfi_softc *);
    249 void		mfi_skinny_intr_dis(struct mfi_softc *);
    250 void		mfi_skinny_intr_ena(struct mfi_softc *);
    251 int		mfi_skinny_intr(struct mfi_softc *);
    252 void		mfi_skinny_post(struct mfi_softc *, struct mfi_ccb *);
    253 
    254 static const struct mfi_iop_ops mfi_iop_skinny = {
    255 	mfi_skinny_fw_state,
    256 	mfi_skinny_intr_dis,
    257 	mfi_skinny_intr_ena,
    258 	mfi_skinny_intr,
    259 	mfi_skinny_post,
    260 	mfi_scsi_ld_io,
    261 };
    262 
    263 static int	mfi_tbolt_init_desc_pool(struct mfi_softc *);
    264 static int	mfi_tbolt_init_MFI_queue(struct mfi_softc *);
    265 static void	mfi_tbolt_build_mpt_ccb(struct mfi_ccb *);
    266 int		mfi_tbolt_scsi_ld_io(struct mfi_ccb *, struct scsipi_xfer *,
    267 		    uint64_t, uint32_t);
    268 static void	mfi_tbolt_scsi_ld_done(struct mfi_ccb *);
    269 static int	mfi_tbolt_create_sgl(struct mfi_ccb *, int);
    270 void		mfi_tbolt_sync_map_info(struct work *, void *);
    271 static void	mfi_sync_map_complete(struct mfi_ccb *);
    272 
    273 u_int32_t	mfi_tbolt_fw_state(struct mfi_softc *);
    274 void		mfi_tbolt_intr_dis(struct mfi_softc *);
    275 void		mfi_tbolt_intr_ena(struct mfi_softc *);
    276 int		mfi_tbolt_intr(struct mfi_softc *sc);
    277 void		mfi_tbolt_post(struct mfi_softc *, struct mfi_ccb *);
    278 
    279 static const struct mfi_iop_ops mfi_iop_tbolt = {
    280 	mfi_tbolt_fw_state,
    281 	mfi_tbolt_intr_dis,
    282 	mfi_tbolt_intr_ena,
    283 	mfi_tbolt_intr,
    284 	mfi_tbolt_post,
    285 	mfi_tbolt_scsi_ld_io,
    286 };
    287 
    288 #define mfi_fw_state(_s) 	((_s)->sc_iop->mio_fw_state(_s))
    289 #define mfi_intr_enable(_s) 	((_s)->sc_iop->mio_intr_ena(_s))
    290 #define mfi_intr_disable(_s) 	((_s)->sc_iop->mio_intr_dis(_s))
    291 #define mfi_my_intr(_s) 	((_s)->sc_iop->mio_intr(_s))
    292 #define mfi_post(_s, _c) 	((_s)->sc_iop->mio_post((_s), (_c)))
    293 
    294 static struct mfi_ccb *
    295 mfi_get_ccb(struct mfi_softc *sc)
    296 {
    297 	struct mfi_ccb		*ccb;
    298 	int			s;
    299 
    300 	s = splbio();
    301 	ccb = TAILQ_FIRST(&sc->sc_ccb_freeq);
    302 	if (ccb) {
    303 		TAILQ_REMOVE(&sc->sc_ccb_freeq, ccb, ccb_link);
    304 		ccb->ccb_state = MFI_CCB_READY;
    305 	}
    306 	splx(s);
    307 
    308 	DNPRINTF(MFI_D_CCB, "%s: mfi_get_ccb: %p\n", DEVNAME(sc), ccb);
    309 	if (__predict_false(ccb == NULL && sc->sc_running))
    310 		aprint_error_dev(sc->sc_dev, "out of ccb\n");
    311 
    312 	return ccb;
    313 }
    314 
    315 static void
    316 mfi_put_ccb(struct mfi_ccb *ccb)
    317 {
    318 	struct mfi_softc	*sc = ccb->ccb_sc;
    319 	struct mfi_frame_header	*hdr = &ccb->ccb_frame->mfr_header;
    320 	int			s;
    321 
    322 	DNPRINTF(MFI_D_CCB, "%s: mfi_put_ccb: %p\n", DEVNAME(sc), ccb);
    323 
    324 	hdr->mfh_cmd_status = 0x0;
    325 	hdr->mfh_flags = 0x0;
    326 	ccb->ccb_state = MFI_CCB_FREE;
    327 	ccb->ccb_xs = NULL;
    328 	ccb->ccb_flags = 0;
    329 	ccb->ccb_done = NULL;
    330 	ccb->ccb_direction = 0;
    331 	ccb->ccb_frame_size = 0;
    332 	ccb->ccb_extra_frames = 0;
    333 	ccb->ccb_sgl = NULL;
    334 	ccb->ccb_data = NULL;
    335 	ccb->ccb_len = 0;
    336 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
    337 		/* erase tb_request_desc but preserve SMID */
    338 		int index = ccb->ccb_tb_request_desc.header.SMID;
    339 		ccb->ccb_tb_request_desc.words = 0;
    340 		ccb->ccb_tb_request_desc.header.SMID = index;
    341 	}
    342 	s = splbio();
    343 	TAILQ_INSERT_TAIL(&sc->sc_ccb_freeq, ccb, ccb_link);
    344 	splx(s);
    345 }
    346 
    347 static int
    348 mfi_destroy_ccb(struct mfi_softc *sc)
    349 {
    350 	struct mfi_ccb		*ccb;
    351 	uint32_t		i;
    352 
    353 	DNPRINTF(MFI_D_CCB, "%s: mfi_destroy_ccb\n", DEVNAME(sc));
    354 
    355 
    356 	for (i = 0; (ccb = mfi_get_ccb(sc)) != NULL; i++) {
    357 		/* create a dma map for transfer */
    358 		bus_dmamap_destroy(sc->sc_datadmat, ccb->ccb_dmamap);
    359 	}
    360 
    361 	if (i < sc->sc_max_cmds)
    362 		return EBUSY;
    363 
    364 	free(sc->sc_ccb, M_DEVBUF);
    365 
    366 	return 0;
    367 }
    368 
    369 static int
    370 mfi_init_ccb(struct mfi_softc *sc)
    371 {
    372 	struct mfi_ccb		*ccb;
    373 	uint32_t		i;
    374 	int			error;
    375 	bus_addr_t		io_req_base_phys;
    376 	uint8_t			*io_req_base;
    377 	int offset;
    378 
    379 	DNPRINTF(MFI_D_CCB, "%s: mfi_init_ccb\n", DEVNAME(sc));
    380 
    381 	sc->sc_ccb = malloc(sizeof(struct mfi_ccb) * sc->sc_max_cmds,
    382 	    M_DEVBUF, M_WAITOK|M_ZERO);
    383 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
    384 		/*
    385 		 * The first 256 bytes (SMID 0) is not used.
    386 		 * Don't add to the cmd list.
    387 		 */
    388 		io_req_base = (uint8_t *)MFIMEM_KVA(sc->sc_tbolt_reqmsgpool) +
    389 		    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE;
    390 		io_req_base_phys = MFIMEM_DVA(sc->sc_tbolt_reqmsgpool) +
    391 		    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE;
    392 	} else {
    393 		io_req_base = NULL;	/* XXX: gcc */
    394 		io_req_base_phys = 0;	/* XXX: gcc */
    395 	}
    396 
    397 	for (i = 0; i < sc->sc_max_cmds; i++) {
    398 		ccb = &sc->sc_ccb[i];
    399 
    400 		ccb->ccb_sc = sc;
    401 
    402 		/* select i'th frame */
    403 		ccb->ccb_frame = (union mfi_frame *)
    404 		    ((char*)MFIMEM_KVA(sc->sc_frames) + sc->sc_frames_size * i);
    405 		ccb->ccb_pframe =
    406 		    MFIMEM_DVA(sc->sc_frames) + sc->sc_frames_size * i;
    407 		ccb->ccb_frame->mfr_header.mfh_context = i;
    408 
    409 		/* select i'th sense */
    410 		ccb->ccb_sense = (struct mfi_sense *)
    411 		    ((char*)MFIMEM_KVA(sc->sc_sense) + MFI_SENSE_SIZE * i);
    412 		ccb->ccb_psense =
    413 		    (MFIMEM_DVA(sc->sc_sense) + MFI_SENSE_SIZE * i);
    414 
    415 		/* create a dma map for transfer */
    416 		error = bus_dmamap_create(sc->sc_datadmat,
    417 		    MAXPHYS, sc->sc_max_sgl, MAXPHYS, 0,
    418 		    BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &ccb->ccb_dmamap);
    419 		if (error) {
    420 			aprint_error_dev(sc->sc_dev,
    421 			    "cannot create ccb dmamap (%d)\n", error);
    422 			goto destroy;
    423 		}
    424 		if (sc->sc_ioptype == MFI_IOP_TBOLT) {
    425 			offset = MEGASAS_THUNDERBOLT_NEW_MSG_SIZE * i;
    426 			ccb->ccb_tb_io_request =
    427 			    (struct mfi_mpi2_request_raid_scsi_io *)
    428 			    (io_req_base + offset);
    429 			ccb->ccb_tb_pio_request =
    430 			    io_req_base_phys + offset;
    431 			offset = MEGASAS_MAX_SZ_CHAIN_FRAME * i;
    432 			ccb->ccb_tb_sg_frame =
    433 			    (mpi2_sge_io_union *)(sc->sc_reply_pool_limit +
    434 			    offset);
    435 			ccb->ccb_tb_psg_frame = sc->sc_sg_frame_busaddr +
    436 			    offset;
    437 			/* SMID 0 is reserved. Set SMID/index from 1 */
    438 			ccb->ccb_tb_request_desc.header.SMID = i + 1;
    439 		}
    440 
    441 		DNPRINTF(MFI_D_CCB,
    442 		    "ccb(%d): %p frame: %#lx (%#lx) sense: %#lx (%#lx) map: %#lx\n",
    443 		    ccb->ccb_frame->mfr_header.mfh_context, ccb,
    444 		    (u_long)ccb->ccb_frame, (u_long)ccb->ccb_pframe,
    445 		    (u_long)ccb->ccb_sense, (u_long)ccb->ccb_psense,
    446 		    (u_long)ccb->ccb_dmamap);
    447 
    448 		/* add ccb to queue */
    449 		mfi_put_ccb(ccb);
    450 	}
    451 
    452 	return 0;
    453 destroy:
    454 	/* free dma maps and ccb memory */
    455 	while (i) {
    456 		i--;
    457 		ccb = &sc->sc_ccb[i];
    458 		bus_dmamap_destroy(sc->sc_datadmat, ccb->ccb_dmamap);
    459 	}
    460 
    461 	free(sc->sc_ccb, M_DEVBUF);
    462 
    463 	return 1;
    464 }
    465 
    466 static uint32_t
    467 mfi_read(struct mfi_softc *sc, bus_size_t r)
    468 {
    469 	uint32_t rv;
    470 
    471 	bus_space_barrier(sc->sc_iot, sc->sc_ioh, r, 4,
    472 	    BUS_SPACE_BARRIER_READ);
    473 	rv = bus_space_read_4(sc->sc_iot, sc->sc_ioh, r);
    474 
    475 	DNPRINTF(MFI_D_RW, "%s: mr 0x%lx 0x08%x ", DEVNAME(sc), (u_long)r, rv);
    476 	return rv;
    477 }
    478 
    479 static void
    480 mfi_write(struct mfi_softc *sc, bus_size_t r, uint32_t v)
    481 {
    482 	DNPRINTF(MFI_D_RW, "%s: mw 0x%lx 0x%08x", DEVNAME(sc), (u_long)r, v);
    483 
    484 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, r, v);
    485 	bus_space_barrier(sc->sc_iot, sc->sc_ioh, r, 4,
    486 	    BUS_SPACE_BARRIER_WRITE);
    487 }
    488 
    489 static struct mfi_mem *
    490 mfi_allocmem(struct mfi_softc *sc, size_t size)
    491 {
    492 	struct mfi_mem		*mm;
    493 	int			nsegs;
    494 
    495 	DNPRINTF(MFI_D_MEM, "%s: mfi_allocmem: %ld\n", DEVNAME(sc),
    496 	    (long)size);
    497 
    498 	mm = malloc(sizeof(struct mfi_mem), M_DEVBUF, M_WAITOK|M_ZERO);
    499 	mm->am_size = size;
    500 
    501 	if (bus_dmamap_create(sc->sc_dmat, size, 1, size, 0,
    502 	    BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &mm->am_map) != 0)
    503 		goto amfree;
    504 
    505 	if (bus_dmamem_alloc(sc->sc_dmat, size, PAGE_SIZE, 0, &mm->am_seg, 1,
    506 	    &nsegs, BUS_DMA_NOWAIT) != 0)
    507 		goto destroy;
    508 
    509 	if (bus_dmamem_map(sc->sc_dmat, &mm->am_seg, nsegs, size, &mm->am_kva,
    510 	    BUS_DMA_NOWAIT) != 0)
    511 		goto free;
    512 
    513 	if (bus_dmamap_load(sc->sc_dmat, mm->am_map, mm->am_kva, size, NULL,
    514 	    BUS_DMA_NOWAIT) != 0)
    515 		goto unmap;
    516 
    517 	DNPRINTF(MFI_D_MEM, "  kva: %p  dva: %p  map: %p\n",
    518 	    mm->am_kva, (void *)mm->am_map->dm_segs[0].ds_addr, mm->am_map);
    519 
    520 	memset(mm->am_kva, 0, size);
    521 	return mm;
    522 
    523 unmap:
    524 	bus_dmamem_unmap(sc->sc_dmat, mm->am_kva, size);
    525 free:
    526 	bus_dmamem_free(sc->sc_dmat, &mm->am_seg, 1);
    527 destroy:
    528 	bus_dmamap_destroy(sc->sc_dmat, mm->am_map);
    529 amfree:
    530 	free(mm, M_DEVBUF);
    531 
    532 	return NULL;
    533 }
    534 
    535 static void
    536 mfi_freemem(struct mfi_softc *sc, struct mfi_mem **mmp)
    537 {
    538 	struct mfi_mem *mm = *mmp;
    539 
    540 	if (mm == NULL)
    541 		return;
    542 
    543 	*mmp = NULL;
    544 
    545 	DNPRINTF(MFI_D_MEM, "%s: mfi_freemem: %p\n", DEVNAME(sc), mm);
    546 
    547 	bus_dmamap_unload(sc->sc_dmat, mm->am_map);
    548 	bus_dmamem_unmap(sc->sc_dmat, mm->am_kva, mm->am_size);
    549 	bus_dmamem_free(sc->sc_dmat, &mm->am_seg, 1);
    550 	bus_dmamap_destroy(sc->sc_dmat, mm->am_map);
    551 	free(mm, M_DEVBUF);
    552 }
    553 
    554 static int
    555 mfi_transition_firmware(struct mfi_softc *sc)
    556 {
    557 	uint32_t		fw_state, cur_state;
    558 	int			max_wait, i;
    559 
    560 	fw_state = mfi_fw_state(sc) & MFI_STATE_MASK;
    561 
    562 	DNPRINTF(MFI_D_CMD, "%s: mfi_transition_firmware: %#x\n", DEVNAME(sc),
    563 	    fw_state);
    564 
    565 	while (fw_state != MFI_STATE_READY) {
    566 		DNPRINTF(MFI_D_MISC,
    567 		    "%s: waiting for firmware to become ready\n",
    568 		    DEVNAME(sc));
    569 		cur_state = fw_state;
    570 		switch (fw_state) {
    571 		case MFI_STATE_FAULT:
    572 			aprint_error_dev(sc->sc_dev, "firmware fault\n");
    573 			return 1;
    574 		case MFI_STATE_WAIT_HANDSHAKE:
    575 			if (sc->sc_ioptype == MFI_IOP_SKINNY ||
    576 			    sc->sc_ioptype == MFI_IOP_TBOLT)
    577 				mfi_write(sc, MFI_SKINNY_IDB, MFI_INIT_CLEAR_HANDSHAKE);
    578 			else
    579 				mfi_write(sc, MFI_IDB, MFI_INIT_CLEAR_HANDSHAKE);
    580 			max_wait = 2;
    581 			break;
    582 		case MFI_STATE_OPERATIONAL:
    583 			if (sc->sc_ioptype == MFI_IOP_SKINNY ||
    584 			    sc->sc_ioptype == MFI_IOP_TBOLT)
    585 				mfi_write(sc, MFI_SKINNY_IDB, MFI_INIT_READY);
    586 			else
    587 				mfi_write(sc, MFI_IDB, MFI_INIT_READY);
    588 			max_wait = 10;
    589 			break;
    590 		case MFI_STATE_UNDEFINED:
    591 		case MFI_STATE_BB_INIT:
    592 			max_wait = 2;
    593 			break;
    594 		case MFI_STATE_FW_INIT:
    595 		case MFI_STATE_DEVICE_SCAN:
    596 		case MFI_STATE_FLUSH_CACHE:
    597 			max_wait = 20;
    598 			break;
    599 		case MFI_STATE_BOOT_MESSAGE_PENDING:
    600 			if (sc->sc_ioptype == MFI_IOP_SKINNY ||
    601 			    sc->sc_ioptype == MFI_IOP_TBOLT) {
    602 				mfi_write(sc, MFI_SKINNY_IDB, MFI_INIT_HOTPLUG);
    603 			} else {
    604 				mfi_write(sc, MFI_IDB, MFI_INIT_HOTPLUG);
    605 			}
    606 			max_wait = 180;
    607 			break;
    608 		default:
    609 			aprint_error_dev(sc->sc_dev,
    610 			    "unknown firmware state %d\n", fw_state);
    611 			return 1;
    612 		}
    613 		for (i = 0; i < (max_wait * 10); i++) {
    614 			fw_state = mfi_fw_state(sc) & MFI_STATE_MASK;
    615 			if (fw_state == cur_state)
    616 				DELAY(100000);
    617 			else
    618 				break;
    619 		}
    620 		if (fw_state == cur_state) {
    621 			aprint_error_dev(sc->sc_dev,
    622 			    "firmware stuck in state %#x\n", fw_state);
    623 			return 1;
    624 		}
    625 	}
    626 
    627 	return 0;
    628 }
    629 
    630 static int
    631 mfi_initialize_firmware(struct mfi_softc *sc)
    632 {
    633 	struct mfi_ccb		*ccb;
    634 	struct mfi_init_frame	*init;
    635 	struct mfi_init_qinfo	*qinfo;
    636 
    637 	DNPRINTF(MFI_D_MISC, "%s: mfi_initialize_firmware\n", DEVNAME(sc));
    638 
    639 	if ((ccb = mfi_get_ccb(sc)) == NULL)
    640 		return 1;
    641 
    642 	init = &ccb->ccb_frame->mfr_init;
    643 	qinfo = (struct mfi_init_qinfo *)((uint8_t *)init + MFI_FRAME_SIZE);
    644 
    645 	memset(qinfo, 0, sizeof *qinfo);
    646 	qinfo->miq_rq_entries = sc->sc_max_cmds + 1;
    647 	qinfo->miq_rq_addr_lo = htole32(MFIMEM_DVA(sc->sc_pcq) +
    648 	    offsetof(struct mfi_prod_cons, mpc_reply_q));
    649 	qinfo->miq_pi_addr_lo = htole32(MFIMEM_DVA(sc->sc_pcq) +
    650 	    offsetof(struct mfi_prod_cons, mpc_producer));
    651 	qinfo->miq_ci_addr_lo = htole32(MFIMEM_DVA(sc->sc_pcq) +
    652 	    offsetof(struct mfi_prod_cons, mpc_consumer));
    653 
    654 	init->mif_header.mfh_cmd = MFI_CMD_INIT;
    655 	init->mif_header.mfh_data_len = sizeof *qinfo;
    656 	init->mif_qinfo_new_addr_lo = htole32(ccb->ccb_pframe + MFI_FRAME_SIZE);
    657 
    658 	DNPRINTF(MFI_D_MISC, "%s: entries: %#x rq: %#x pi: %#x ci: %#x\n",
    659 	    DEVNAME(sc),
    660 	    qinfo->miq_rq_entries, qinfo->miq_rq_addr_lo,
    661 	    qinfo->miq_pi_addr_lo, qinfo->miq_ci_addr_lo);
    662 
    663 	if (mfi_poll(ccb)) {
    664 		aprint_error_dev(sc->sc_dev,
    665 		    "mfi_initialize_firmware failed\n");
    666 		return 1;
    667 	}
    668 
    669 	mfi_put_ccb(ccb);
    670 
    671 	return 0;
    672 }
    673 
    674 static int
    675 mfi_get_info(struct mfi_softc *sc)
    676 {
    677 #ifdef MFI_DEBUG
    678 	int i;
    679 #endif
    680 	DNPRINTF(MFI_D_MISC, "%s: mfi_get_info\n", DEVNAME(sc));
    681 
    682 	if (mfi_mgmt_internal(sc, MR_DCMD_CTRL_GET_INFO, MFI_DATA_IN,
    683 	    sizeof(sc->sc_info), &sc->sc_info, NULL, cold ? true : false))
    684 		return 1;
    685 
    686 #ifdef MFI_DEBUG
    687 
    688 	for (i = 0; i < sc->sc_info.mci_image_component_count; i++) {
    689 		printf("%s: active FW %s Version %s date %s time %s\n",
    690 		    DEVNAME(sc),
    691 		    sc->sc_info.mci_image_component[i].mic_name,
    692 		    sc->sc_info.mci_image_component[i].mic_version,
    693 		    sc->sc_info.mci_image_component[i].mic_build_date,
    694 		    sc->sc_info.mci_image_component[i].mic_build_time);
    695 	}
    696 
    697 	for (i = 0; i < sc->sc_info.mci_pending_image_component_count; i++) {
    698 		printf("%s: pending FW %s Version %s date %s time %s\n",
    699 		    DEVNAME(sc),
    700 		    sc->sc_info.mci_pending_image_component[i].mic_name,
    701 		    sc->sc_info.mci_pending_image_component[i].mic_version,
    702 		    sc->sc_info.mci_pending_image_component[i].mic_build_date,
    703 		    sc->sc_info.mci_pending_image_component[i].mic_build_time);
    704 	}
    705 
    706 	printf("%s: max_arms %d max_spans %d max_arrs %d max_lds %d name %s\n",
    707 	    DEVNAME(sc),
    708 	    sc->sc_info.mci_max_arms,
    709 	    sc->sc_info.mci_max_spans,
    710 	    sc->sc_info.mci_max_arrays,
    711 	    sc->sc_info.mci_max_lds,
    712 	    sc->sc_info.mci_product_name);
    713 
    714 	printf("%s: serial %s present %#x fw time %d max_cmds %d max_sg %d\n",
    715 	    DEVNAME(sc),
    716 	    sc->sc_info.mci_serial_number,
    717 	    sc->sc_info.mci_hw_present,
    718 	    sc->sc_info.mci_current_fw_time,
    719 	    sc->sc_info.mci_max_cmds,
    720 	    sc->sc_info.mci_max_sg_elements);
    721 
    722 	printf("%s: max_rq %d lds_pres %d lds_deg %d lds_off %d pd_pres %d\n",
    723 	    DEVNAME(sc),
    724 	    sc->sc_info.mci_max_request_size,
    725 	    sc->sc_info.mci_lds_present,
    726 	    sc->sc_info.mci_lds_degraded,
    727 	    sc->sc_info.mci_lds_offline,
    728 	    sc->sc_info.mci_pd_present);
    729 
    730 	printf("%s: pd_dsk_prs %d pd_dsk_pred_fail %d pd_dsk_fail %d\n",
    731 	    DEVNAME(sc),
    732 	    sc->sc_info.mci_pd_disks_present,
    733 	    sc->sc_info.mci_pd_disks_pred_failure,
    734 	    sc->sc_info.mci_pd_disks_failed);
    735 
    736 	printf("%s: nvram %d mem %d flash %d\n",
    737 	    DEVNAME(sc),
    738 	    sc->sc_info.mci_nvram_size,
    739 	    sc->sc_info.mci_memory_size,
    740 	    sc->sc_info.mci_flash_size);
    741 
    742 	printf("%s: ram_cor %d ram_uncor %d clus_all %d clus_act %d\n",
    743 	    DEVNAME(sc),
    744 	    sc->sc_info.mci_ram_correctable_errors,
    745 	    sc->sc_info.mci_ram_uncorrectable_errors,
    746 	    sc->sc_info.mci_cluster_allowed,
    747 	    sc->sc_info.mci_cluster_active);
    748 
    749 	printf("%s: max_strps_io %d raid_lvl %#x adapt_ops %#x ld_ops %#x\n",
    750 	    DEVNAME(sc),
    751 	    sc->sc_info.mci_max_strips_per_io,
    752 	    sc->sc_info.mci_raid_levels,
    753 	    sc->sc_info.mci_adapter_ops,
    754 	    sc->sc_info.mci_ld_ops);
    755 
    756 	printf("%s: strp_sz_min %d strp_sz_max %d pd_ops %#x pd_mix %#x\n",
    757 	    DEVNAME(sc),
    758 	    sc->sc_info.mci_stripe_sz_ops.min,
    759 	    sc->sc_info.mci_stripe_sz_ops.max,
    760 	    sc->sc_info.mci_pd_ops,
    761 	    sc->sc_info.mci_pd_mix_support);
    762 
    763 	printf("%s: ecc_bucket %d pckg_prop %s\n",
    764 	    DEVNAME(sc),
    765 	    sc->sc_info.mci_ecc_bucket_count,
    766 	    sc->sc_info.mci_package_version);
    767 
    768 	printf("%s: sq_nm %d prd_fail_poll %d intr_thrtl %d intr_thrtl_to %d\n",
    769 	    DEVNAME(sc),
    770 	    sc->sc_info.mci_properties.mcp_seq_num,
    771 	    sc->sc_info.mci_properties.mcp_pred_fail_poll_interval,
    772 	    sc->sc_info.mci_properties.mcp_intr_throttle_cnt,
    773 	    sc->sc_info.mci_properties.mcp_intr_throttle_timeout);
    774 
    775 	printf("%s: rbld_rate %d patr_rd_rate %d bgi_rate %d cc_rate %d\n",
    776 	    DEVNAME(sc),
    777 	    sc->sc_info.mci_properties.mcp_rebuild_rate,
    778 	    sc->sc_info.mci_properties.mcp_patrol_read_rate,
    779 	    sc->sc_info.mci_properties.mcp_bgi_rate,
    780 	    sc->sc_info.mci_properties.mcp_cc_rate);
    781 
    782 	printf("%s: rc_rate %d ch_flsh %d spin_cnt %d spin_dly %d clus_en %d\n",
    783 	    DEVNAME(sc),
    784 	    sc->sc_info.mci_properties.mcp_recon_rate,
    785 	    sc->sc_info.mci_properties.mcp_cache_flush_interval,
    786 	    sc->sc_info.mci_properties.mcp_spinup_drv_cnt,
    787 	    sc->sc_info.mci_properties.mcp_spinup_delay,
    788 	    sc->sc_info.mci_properties.mcp_cluster_enable);
    789 
    790 	printf("%s: coerc %d alarm %d dis_auto_rbld %d dis_bat_wrn %d ecc %d\n",
    791 	    DEVNAME(sc),
    792 	    sc->sc_info.mci_properties.mcp_coercion_mode,
    793 	    sc->sc_info.mci_properties.mcp_alarm_enable,
    794 	    sc->sc_info.mci_properties.mcp_disable_auto_rebuild,
    795 	    sc->sc_info.mci_properties.mcp_disable_battery_warn,
    796 	    sc->sc_info.mci_properties.mcp_ecc_bucket_size);
    797 
    798 	printf("%s: ecc_leak %d rest_hs %d exp_encl_dev %d\n",
    799 	    DEVNAME(sc),
    800 	    sc->sc_info.mci_properties.mcp_ecc_bucket_leak_rate,
    801 	    sc->sc_info.mci_properties.mcp_restore_hotspare_on_insertion,
    802 	    sc->sc_info.mci_properties.mcp_expose_encl_devices);
    803 
    804 	printf("%s: vendor %#x device %#x subvendor %#x subdevice %#x\n",
    805 	    DEVNAME(sc),
    806 	    sc->sc_info.mci_pci.mip_vendor,
    807 	    sc->sc_info.mci_pci.mip_device,
    808 	    sc->sc_info.mci_pci.mip_subvendor,
    809 	    sc->sc_info.mci_pci.mip_subdevice);
    810 
    811 	printf("%s: type %#x port_count %d port_addr ",
    812 	    DEVNAME(sc),
    813 	    sc->sc_info.mci_host.mih_type,
    814 	    sc->sc_info.mci_host.mih_port_count);
    815 
    816 	for (i = 0; i < 8; i++)
    817 		printf("%.0" PRIx64 " ", sc->sc_info.mci_host.mih_port_addr[i]);
    818 	printf("\n");
    819 
    820 	printf("%s: type %.x port_count %d port_addr ",
    821 	    DEVNAME(sc),
    822 	    sc->sc_info.mci_device.mid_type,
    823 	    sc->sc_info.mci_device.mid_port_count);
    824 
    825 	for (i = 0; i < 8; i++) {
    826 		printf("%.0" PRIx64 " ",
    827 		    sc->sc_info.mci_device.mid_port_addr[i]);
    828 	}
    829 	printf("\n");
    830 #endif /* MFI_DEBUG */
    831 
    832 	return 0;
    833 }
    834 
    835 static int
    836 mfi_get_bbu(struct mfi_softc *sc, struct mfi_bbu_status *stat)
    837 {
    838 	DNPRINTF(MFI_D_MISC, "%s: mfi_get_bbu\n", DEVNAME(sc));
    839 
    840 	if (mfi_mgmt_internal(sc, MR_DCMD_BBU_GET_STATUS, MFI_DATA_IN,
    841 	    sizeof(*stat), stat, NULL, cold ? true : false))
    842 		return MFI_BBU_UNKNOWN;
    843 #ifdef MFI_DEBUG
    844 	printf("bbu type %d, voltage %d, current %d, temperature %d, "
    845 	    "status 0x%x\n", stat->battery_type, stat->voltage, stat->current,
    846 	    stat->temperature, stat->fw_status);
    847 	printf("details: ");
    848 	switch(stat->battery_type) {
    849 	case MFI_BBU_TYPE_IBBU:
    850 		printf("guage %d relative charge %d charger state %d "
    851 		    "charger ctrl %d\n", stat->detail.ibbu.gas_guage_status,
    852 		    stat->detail.ibbu.relative_charge ,
    853 		    stat->detail.ibbu.charger_system_state ,
    854 		    stat->detail.ibbu.charger_system_ctrl);
    855 		printf("\tcurrent %d abs charge %d max error %d\n",
    856 		    stat->detail.ibbu.charging_current ,
    857 		    stat->detail.ibbu.absolute_charge ,
    858 		    stat->detail.ibbu.max_error);
    859 		break;
    860 	case MFI_BBU_TYPE_BBU:
    861 		printf("guage %d relative charge %d charger state %d\n",
    862 		    stat->detail.ibbu.gas_guage_status,
    863 		    stat->detail.bbu.relative_charge ,
    864 		    stat->detail.bbu.charger_status );
    865 		printf("\trem capacity %d fyll capacity %d SOH %d\n",
    866 		    stat->detail.bbu.remaining_capacity ,
    867 		    stat->detail.bbu.full_charge_capacity ,
    868 		    stat->detail.bbu.is_SOH_good);
    869 		break;
    870 	default:
    871 		printf("\n");
    872 	}
    873 #endif
    874 	switch(stat->battery_type) {
    875 	case MFI_BBU_TYPE_BBU:
    876 		return (stat->detail.bbu.is_SOH_good ?
    877 		    MFI_BBU_GOOD : MFI_BBU_BAD);
    878 	case MFI_BBU_TYPE_NONE:
    879 		return MFI_BBU_UNKNOWN;
    880 	default:
    881 		if (stat->fw_status &
    882 		    (MFI_BBU_STATE_PACK_MISSING |
    883 		     MFI_BBU_STATE_VOLTAGE_LOW |
    884 		     MFI_BBU_STATE_TEMPERATURE_HIGH |
    885 		     MFI_BBU_STATE_LEARN_CYC_FAIL |
    886 		     MFI_BBU_STATE_LEARN_CYC_TIMEOUT |
    887 		     MFI_BBU_STATE_I2C_ERR_DETECT))
    888 			return MFI_BBU_BAD;
    889 		return MFI_BBU_GOOD;
    890 	}
    891 }
    892 
    893 static void
    894 mfiminphys(struct buf *bp)
    895 {
    896 	DNPRINTF(MFI_D_MISC, "mfiminphys: %d\n", bp->b_bcount);
    897 
    898 	/* XXX currently using MFI_MAXFER = MAXPHYS */
    899 	if (bp->b_bcount > MFI_MAXFER)
    900 		bp->b_bcount = MFI_MAXFER;
    901 	minphys(bp);
    902 }
    903 
    904 int
    905 mfi_rescan(device_t self, const char *ifattr, const int *locators)
    906 {
    907 	struct mfi_softc *sc = device_private(self);
    908 
    909 	if (sc->sc_child != NULL)
    910 		return 0;
    911 
    912 	sc->sc_child = config_found_sm_loc(self, ifattr, locators, &sc->sc_chan,
    913 	    scsiprint, NULL);
    914 
    915 	return 0;
    916 }
    917 
    918 void
    919 mfi_childdetached(device_t self, device_t child)
    920 {
    921 	struct mfi_softc *sc = device_private(self);
    922 
    923 	KASSERT(self == sc->sc_dev);
    924 	KASSERT(child == sc->sc_child);
    925 
    926 	if (child == sc->sc_child)
    927 		sc->sc_child = NULL;
    928 }
    929 
    930 int
    931 mfi_detach(struct mfi_softc *sc, int flags)
    932 {
    933 	int			error;
    934 
    935 	DNPRINTF(MFI_D_MISC, "%s: mfi_detach\n", DEVNAME(sc));
    936 
    937 	if ((error = config_detach_children(sc->sc_dev, flags)) != 0)
    938 		return error;
    939 
    940 #if NBIO > 0
    941 	mfi_destroy_sensors(sc);
    942 	bio_unregister(sc->sc_dev);
    943 #endif /* NBIO > 0 */
    944 
    945 	mfi_intr_disable(sc);
    946 	mfi_shutdown(sc->sc_dev, 0);
    947 
    948 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
    949 		workqueue_destroy(sc->sc_ldsync_wq);
    950 		mfi_put_ccb(sc->sc_ldsync_ccb);
    951 		mfi_freemem(sc, &sc->sc_tbolt_reqmsgpool);
    952 		mfi_freemem(sc, &sc->sc_tbolt_ioc_init);
    953 		mfi_freemem(sc, &sc->sc_tbolt_verbuf);
    954 	}
    955 
    956 	if ((error = mfi_destroy_ccb(sc)) != 0)
    957 		return error;
    958 
    959 	mfi_freemem(sc, &sc->sc_sense);
    960 
    961 	mfi_freemem(sc, &sc->sc_frames);
    962 
    963 	mfi_freemem(sc, &sc->sc_pcq);
    964 
    965 	return 0;
    966 }
    967 
    968 static bool
    969 mfi_shutdown(device_t dev, int how)
    970 {
    971 	struct mfi_softc	*sc = device_private(dev);
    972 	uint8_t			mbox[MFI_MBOX_SIZE];
    973 	int s = splbio();
    974 	DNPRINTF(MFI_D_MISC, "%s: mfi_shutdown\n", DEVNAME(sc));
    975 	if (sc->sc_running) {
    976 		mbox[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE;
    977 		if (mfi_mgmt_internal(sc, MR_DCMD_CTRL_CACHE_FLUSH,
    978 		    MFI_DATA_NONE, 0, NULL, mbox, true)) {
    979 			aprint_error_dev(dev, "shutdown: cache flush failed\n");
    980 			goto fail;
    981 		}
    982 
    983 		mbox[0] = 0;
    984 		if (mfi_mgmt_internal(sc, MR_DCMD_CTRL_SHUTDOWN,
    985 		    MFI_DATA_NONE, 0, NULL, mbox, true)) {
    986 			aprint_error_dev(dev, "shutdown: "
    987 			    "firmware shutdown failed\n");
    988 			goto fail;
    989 		}
    990 		sc->sc_running = false;
    991 	}
    992 	splx(s);
    993 	return true;
    994 fail:
    995 	splx(s);
    996 	return false;
    997 }
    998 
    999 static bool
   1000 mfi_suspend(device_t dev, const pmf_qual_t *q)
   1001 {
   1002 	/* XXX to be implemented */
   1003 	return false;
   1004 }
   1005 
   1006 static bool
   1007 mfi_resume(device_t dev, const pmf_qual_t *q)
   1008 {
   1009 	/* XXX to be implemented */
   1010 	return false;
   1011 }
   1012 
   1013 int
   1014 mfi_attach(struct mfi_softc *sc, enum mfi_iop iop)
   1015 {
   1016 	struct scsipi_adapter *adapt = &sc->sc_adapt;
   1017 	struct scsipi_channel *chan = &sc->sc_chan;
   1018 	uint32_t		status, frames, max_sgl;
   1019 	int			i;
   1020 
   1021 	DNPRINTF(MFI_D_MISC, "%s: mfi_attach\n", DEVNAME(sc));
   1022 
   1023 	sc->sc_ioptype = iop;
   1024 
   1025 	switch (iop) {
   1026 	case MFI_IOP_XSCALE:
   1027 		sc->sc_iop = &mfi_iop_xscale;
   1028 		break;
   1029 	case MFI_IOP_PPC:
   1030 		sc->sc_iop = &mfi_iop_ppc;
   1031 		break;
   1032 	case MFI_IOP_GEN2:
   1033 		sc->sc_iop = &mfi_iop_gen2;
   1034 		break;
   1035 	case MFI_IOP_SKINNY:
   1036 		sc->sc_iop = &mfi_iop_skinny;
   1037 		break;
   1038 	case MFI_IOP_TBOLT:
   1039 		sc->sc_iop = &mfi_iop_tbolt;
   1040 		break;
   1041 	default:
   1042 		 panic("%s: unknown iop %d", DEVNAME(sc), iop);
   1043 	}
   1044 
   1045 	if (mfi_transition_firmware(sc))
   1046 		return 1;
   1047 
   1048 	TAILQ_INIT(&sc->sc_ccb_freeq);
   1049 
   1050 	status = mfi_fw_state(sc);
   1051 	sc->sc_max_cmds = status & MFI_STATE_MAXCMD_MASK;
   1052 	max_sgl = (status & MFI_STATE_MAXSGL_MASK) >> 16;
   1053 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
   1054 		sc->sc_max_sgl = uimin(max_sgl, (128 * 1024) / PAGE_SIZE + 1);
   1055 		sc->sc_sgl_size = sizeof(struct mfi_sg_ieee);
   1056 	} else if (sc->sc_64bit_dma) {
   1057 		sc->sc_max_sgl = uimin(max_sgl, (128 * 1024) / PAGE_SIZE + 1);
   1058 		sc->sc_sgl_size = sizeof(struct mfi_sg64);
   1059 	} else {
   1060 		sc->sc_max_sgl = max_sgl;
   1061 		sc->sc_sgl_size = sizeof(struct mfi_sg32);
   1062 	}
   1063 	DNPRINTF(MFI_D_MISC, "%s: max commands: %u, max sgl: %u\n",
   1064 	    DEVNAME(sc), sc->sc_max_cmds, sc->sc_max_sgl);
   1065 
   1066 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
   1067 		uint32_t tb_mem_size;
   1068 		/* for Alignment */
   1069 		tb_mem_size = MEGASAS_THUNDERBOLT_MSG_ALLIGNMENT;
   1070 
   1071 		tb_mem_size +=
   1072 		    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE * (sc->sc_max_cmds + 1);
   1073 		sc->sc_reply_pool_size =
   1074 		    ((sc->sc_max_cmds + 1 + 15) / 16) * 16;
   1075 		tb_mem_size +=
   1076 		    MEGASAS_THUNDERBOLT_REPLY_SIZE * sc->sc_reply_pool_size;
   1077 
   1078 		/* this is for SGL's */
   1079 		tb_mem_size += MEGASAS_MAX_SZ_CHAIN_FRAME * sc->sc_max_cmds;
   1080 		sc->sc_tbolt_reqmsgpool = mfi_allocmem(sc, tb_mem_size);
   1081 		if (sc->sc_tbolt_reqmsgpool == NULL) {
   1082 			aprint_error_dev(sc->sc_dev,
   1083 			    "unable to allocate thunderbolt "
   1084 			    "request message pool\n");
   1085 			goto nopcq;
   1086 		}
   1087 		if (mfi_tbolt_init_desc_pool(sc)) {
   1088 			aprint_error_dev(sc->sc_dev,
   1089 			    "Thunderbolt pool preparation error\n");
   1090 			goto nopcq;
   1091 		}
   1092 
   1093 		/*
   1094 		 * Allocate DMA memory mapping for MPI2 IOC Init descriptor,
   1095 		 * we are taking it diffrent from what we have allocated for
   1096 		 * Request and reply descriptors to avoid confusion later
   1097 		 */
   1098 		sc->sc_tbolt_ioc_init = mfi_allocmem(sc,
   1099 		    sizeof(struct mpi2_ioc_init_request));
   1100 		if (sc->sc_tbolt_ioc_init == NULL) {
   1101 			aprint_error_dev(sc->sc_dev,
   1102 			    "unable to allocate thunderbolt IOC init memory");
   1103 			goto nopcq;
   1104 		}
   1105 
   1106 		sc->sc_tbolt_verbuf = mfi_allocmem(sc,
   1107 		    MEGASAS_MAX_NAME*sizeof(bus_addr_t));
   1108 		if (sc->sc_tbolt_verbuf == NULL) {
   1109 			aprint_error_dev(sc->sc_dev,
   1110 			    "unable to allocate thunderbolt version buffer\n");
   1111 			goto nopcq;
   1112 		}
   1113 
   1114 	}
   1115 	/* consumer/producer and reply queue memory */
   1116 	sc->sc_pcq = mfi_allocmem(sc, (sizeof(uint32_t) * sc->sc_max_cmds) +
   1117 	    sizeof(struct mfi_prod_cons));
   1118 	if (sc->sc_pcq == NULL) {
   1119 		aprint_error_dev(sc->sc_dev,
   1120 		    "unable to allocate reply queue memory\n");
   1121 		goto nopcq;
   1122 	}
   1123 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_pcq), 0,
   1124 	    sizeof(uint32_t) * sc->sc_max_cmds + sizeof(struct mfi_prod_cons),
   1125 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   1126 
   1127 	/* frame memory */
   1128 	frames = (sc->sc_sgl_size * sc->sc_max_sgl + MFI_FRAME_SIZE - 1) /
   1129 	    MFI_FRAME_SIZE + 1;
   1130 	sc->sc_frames_size = frames * MFI_FRAME_SIZE;
   1131 	sc->sc_frames = mfi_allocmem(sc, sc->sc_frames_size * sc->sc_max_cmds);
   1132 	if (sc->sc_frames == NULL) {
   1133 		aprint_error_dev(sc->sc_dev,
   1134 		    "unable to allocate frame memory\n");
   1135 		goto noframe;
   1136 	}
   1137 	/* XXX hack, fix this */
   1138 	if (MFIMEM_DVA(sc->sc_frames) & 0x3f) {
   1139 		aprint_error_dev(sc->sc_dev,
   1140 		    "improper frame alignment (%#llx) FIXME\n",
   1141 		    (long long int)MFIMEM_DVA(sc->sc_frames));
   1142 		goto noframe;
   1143 	}
   1144 
   1145 	/* sense memory */
   1146 	sc->sc_sense = mfi_allocmem(sc, sc->sc_max_cmds * MFI_SENSE_SIZE);
   1147 	if (sc->sc_sense == NULL) {
   1148 		aprint_error_dev(sc->sc_dev,
   1149 		    "unable to allocate sense memory\n");
   1150 		goto nosense;
   1151 	}
   1152 
   1153 	/* now that we have all memory bits go initialize ccbs */
   1154 	if (mfi_init_ccb(sc)) {
   1155 		aprint_error_dev(sc->sc_dev, "could not init ccb list\n");
   1156 		goto noinit;
   1157 	}
   1158 
   1159 	/* kickstart firmware with all addresses and pointers */
   1160 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
   1161 		if (mfi_tbolt_init_MFI_queue(sc)) {
   1162 			aprint_error_dev(sc->sc_dev,
   1163 			    "could not initialize firmware\n");
   1164 			goto noinit;
   1165 		}
   1166 	} else {
   1167 		if (mfi_initialize_firmware(sc)) {
   1168 			aprint_error_dev(sc->sc_dev,
   1169 			    "could not initialize firmware\n");
   1170 			goto noinit;
   1171 		}
   1172 	}
   1173 	sc->sc_running = true;
   1174 
   1175 	if (mfi_get_info(sc)) {
   1176 		aprint_error_dev(sc->sc_dev,
   1177 		    "could not retrieve controller information\n");
   1178 		goto noinit;
   1179 	}
   1180 	aprint_normal_dev(sc->sc_dev,
   1181 	    "%s version %s\n",
   1182 	    sc->sc_info.mci_product_name,
   1183 	    sc->sc_info.mci_package_version);
   1184 
   1185 
   1186 	aprint_normal_dev(sc->sc_dev, "logical drives %d, %dMB RAM, ",
   1187 	    sc->sc_info.mci_lds_present,
   1188 	    sc->sc_info.mci_memory_size);
   1189 	sc->sc_bbuok = false;
   1190 	if (sc->sc_info.mci_hw_present & MFI_INFO_HW_BBU) {
   1191 		struct mfi_bbu_status	bbu_stat;
   1192 		int mfi_bbu_status = mfi_get_bbu(sc, &bbu_stat);
   1193 		aprint_normal("BBU type ");
   1194 		switch (bbu_stat.battery_type) {
   1195 		case MFI_BBU_TYPE_BBU:
   1196 			aprint_normal("BBU");
   1197 			break;
   1198 		case MFI_BBU_TYPE_IBBU:
   1199 			aprint_normal("IBBU");
   1200 			break;
   1201 		default:
   1202 			aprint_normal("unknown type %d", bbu_stat.battery_type);
   1203 		}
   1204 		aprint_normal(", status ");
   1205 		switch(mfi_bbu_status) {
   1206 		case MFI_BBU_GOOD:
   1207 			aprint_normal("good\n");
   1208 			sc->sc_bbuok = true;
   1209 			break;
   1210 		case MFI_BBU_BAD:
   1211 			aprint_normal("bad\n");
   1212 			break;
   1213 		case MFI_BBU_UNKNOWN:
   1214 			aprint_normal("unknown\n");
   1215 			break;
   1216 		default:
   1217 			panic("mfi_bbu_status");
   1218 		}
   1219 	} else {
   1220 		aprint_normal("BBU not present\n");
   1221 	}
   1222 
   1223 	sc->sc_ld_cnt = sc->sc_info.mci_lds_present;
   1224 	sc->sc_max_ld = sc->sc_ld_cnt;
   1225 	for (i = 0; i < sc->sc_ld_cnt; i++)
   1226 		sc->sc_ld[i].ld_present = 1;
   1227 
   1228 	memset(adapt, 0, sizeof(*adapt));
   1229 	adapt->adapt_dev = sc->sc_dev;
   1230 	adapt->adapt_nchannels = 1;
   1231 	/* keep a few commands for management */
   1232 	if (sc->sc_max_cmds > 4)
   1233 		adapt->adapt_openings = sc->sc_max_cmds - 4;
   1234 	else
   1235 		adapt->adapt_openings = sc->sc_max_cmds;
   1236 	adapt->adapt_max_periph = adapt->adapt_openings;
   1237 	adapt->adapt_request = mfi_scsipi_request;
   1238 	adapt->adapt_minphys = mfiminphys;
   1239 
   1240 	memset(chan, 0, sizeof(*chan));
   1241 	chan->chan_adapter = adapt;
   1242 	chan->chan_bustype = &scsi_sas_bustype;
   1243 	chan->chan_channel = 0;
   1244 	chan->chan_flags = 0;
   1245 	chan->chan_nluns = 8;
   1246 	chan->chan_ntargets = MFI_MAX_LD;
   1247 	chan->chan_id = MFI_MAX_LD;
   1248 
   1249 	mfi_rescan(sc->sc_dev, "scsi", NULL);
   1250 
   1251 	/* enable interrupts */
   1252 	mfi_intr_enable(sc);
   1253 
   1254 #if NBIO > 0
   1255 	if (bio_register(sc->sc_dev, mfi_ioctl) != 0)
   1256 		panic("%s: controller registration failed", DEVNAME(sc));
   1257 	if (mfi_create_sensors(sc) != 0)
   1258 		aprint_error_dev(sc->sc_dev, "unable to create sensors\n");
   1259 #endif /* NBIO > 0 */
   1260 	if (!pmf_device_register1(sc->sc_dev, mfi_suspend, mfi_resume,
   1261 	    mfi_shutdown)) {
   1262 		aprint_error_dev(sc->sc_dev,
   1263 		    "couldn't establish power handler\n");
   1264 	}
   1265 
   1266 	return 0;
   1267 noinit:
   1268 	mfi_freemem(sc, &sc->sc_sense);
   1269 nosense:
   1270 	mfi_freemem(sc, &sc->sc_frames);
   1271 noframe:
   1272 	mfi_freemem(sc, &sc->sc_pcq);
   1273 nopcq:
   1274 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
   1275 		if (sc->sc_tbolt_reqmsgpool)
   1276 			mfi_freemem(sc, &sc->sc_tbolt_reqmsgpool);
   1277 		if (sc->sc_tbolt_verbuf)
   1278 			mfi_freemem(sc, &sc->sc_tbolt_verbuf);
   1279 	}
   1280 	return 1;
   1281 }
   1282 
   1283 static int
   1284 mfi_poll(struct mfi_ccb *ccb)
   1285 {
   1286 	struct mfi_softc *sc = ccb->ccb_sc;
   1287 	struct mfi_frame_header	*hdr;
   1288 	int			to = 0;
   1289 	int			rv = 0;
   1290 
   1291 	DNPRINTF(MFI_D_CMD, "%s: mfi_poll\n", DEVNAME(sc));
   1292 
   1293 	hdr = &ccb->ccb_frame->mfr_header;
   1294 	hdr->mfh_cmd_status = 0xff;
   1295 	if (!sc->sc_MFA_enabled)
   1296 		hdr->mfh_flags |= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE;
   1297 
   1298 	/* no callback, caller is supposed to do the cleanup */
   1299 	ccb->ccb_done = NULL;
   1300 
   1301 	mfi_post(sc, ccb);
   1302 	if (sc->sc_MFA_enabled) {
   1303 		/*
   1304 		 * depending on the command type, result may be posted
   1305 		 * to *hdr, or not. In addition it seems there's
   1306 		 * no way to avoid posting the SMID to the reply queue.
   1307 		 * So pool using the interrupt routine.
   1308 		 */
   1309 		 while (ccb->ccb_state != MFI_CCB_DONE) {
   1310 			delay(1000);
   1311 			if (to++ > 5000) { /* XXX 5 seconds busywait sucks */
   1312 				rv = 1;
   1313 				break;
   1314 			}
   1315 			mfi_tbolt_intrh(sc);
   1316 		 }
   1317 	} else {
   1318 		bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_frames),
   1319 		    ccb->ccb_pframe - MFIMEM_DVA(sc->sc_frames),
   1320 		    sc->sc_frames_size, BUS_DMASYNC_POSTREAD);
   1321 
   1322 		while (hdr->mfh_cmd_status == 0xff) {
   1323 			delay(1000);
   1324 			if (to++ > 5000) { /* XXX 5 seconds busywait sucks */
   1325 				rv = 1;
   1326 				break;
   1327 			}
   1328 			bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_frames),
   1329 			    ccb->ccb_pframe - MFIMEM_DVA(sc->sc_frames),
   1330 			    sc->sc_frames_size, BUS_DMASYNC_POSTREAD);
   1331 		}
   1332 	}
   1333 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_frames),
   1334 	    ccb->ccb_pframe - MFIMEM_DVA(sc->sc_frames),
   1335 	    sc->sc_frames_size, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
   1336 
   1337 	if (ccb->ccb_data != NULL) {
   1338 		DNPRINTF(MFI_D_INTR, "%s: mfi_mgmt_done sync\n",
   1339 		    DEVNAME(sc));
   1340 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   1341 		    ccb->ccb_dmamap->dm_mapsize,
   1342 		    (ccb->ccb_direction & MFI_DATA_IN) ?
   1343 		    BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
   1344 
   1345 		bus_dmamap_unload(sc->sc_datadmat, ccb->ccb_dmamap);
   1346 	}
   1347 
   1348 	if (rv != 0) {
   1349 		aprint_error_dev(sc->sc_dev, "timeout on ccb %d\n",
   1350 		    hdr->mfh_context);
   1351 		ccb->ccb_flags |= MFI_CCB_F_ERR;
   1352 		return 1;
   1353 	}
   1354 
   1355 	return 0;
   1356 }
   1357 
   1358 int
   1359 mfi_intr(void *arg)
   1360 {
   1361 	struct mfi_softc	*sc = arg;
   1362 	struct mfi_prod_cons	*pcq;
   1363 	struct mfi_ccb		*ccb;
   1364 	uint32_t		producer, consumer, ctx;
   1365 	int			claimed = 0;
   1366 
   1367 	if (!mfi_my_intr(sc))
   1368 		return 0;
   1369 
   1370 	pcq = MFIMEM_KVA(sc->sc_pcq);
   1371 
   1372 	DNPRINTF(MFI_D_INTR, "%s: mfi_intr %#lx %#lx\n", DEVNAME(sc),
   1373 	    (u_long)sc, (u_long)pcq);
   1374 
   1375 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_pcq), 0,
   1376 	    sizeof(uint32_t) * sc->sc_max_cmds + sizeof(struct mfi_prod_cons),
   1377 	    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
   1378 
   1379 	producer = pcq->mpc_producer;
   1380 	consumer = pcq->mpc_consumer;
   1381 
   1382 	while (consumer != producer) {
   1383 		DNPRINTF(MFI_D_INTR, "%s: mfi_intr pi %#x ci %#x\n",
   1384 		    DEVNAME(sc), producer, consumer);
   1385 
   1386 		ctx = pcq->mpc_reply_q[consumer];
   1387 		pcq->mpc_reply_q[consumer] = MFI_INVALID_CTX;
   1388 		if (ctx == MFI_INVALID_CTX)
   1389 			aprint_error_dev(sc->sc_dev,
   1390 			    "invalid context, p: %d c: %d\n",
   1391 			    producer, consumer);
   1392 		else {
   1393 			/* XXX remove from queue and call scsi_done */
   1394 			ccb = &sc->sc_ccb[ctx];
   1395 			DNPRINTF(MFI_D_INTR, "%s: mfi_intr context %#x\n",
   1396 			    DEVNAME(sc), ctx);
   1397 			bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_frames),
   1398 			    ccb->ccb_pframe - MFIMEM_DVA(sc->sc_frames),
   1399 			    sc->sc_frames_size,
   1400 			    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
   1401 			ccb->ccb_done(ccb);
   1402 
   1403 			claimed = 1;
   1404 		}
   1405 		consumer++;
   1406 		if (consumer == (sc->sc_max_cmds + 1))
   1407 			consumer = 0;
   1408 	}
   1409 
   1410 	pcq->mpc_consumer = consumer;
   1411 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_pcq), 0,
   1412 	    sizeof(uint32_t) * sc->sc_max_cmds + sizeof(struct mfi_prod_cons),
   1413 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   1414 
   1415 	return claimed;
   1416 }
   1417 
   1418 static int
   1419 mfi_scsi_ld_io(struct mfi_ccb *ccb, struct scsipi_xfer *xs, uint64_t blockno,
   1420     uint32_t blockcnt)
   1421 {
   1422 	struct scsipi_periph *periph = xs->xs_periph;
   1423 	struct mfi_io_frame   *io;
   1424 
   1425 	DNPRINTF(MFI_D_CMD, "%s: mfi_scsi_ld_io: %d\n",
   1426 	    device_xname(periph->periph_channel->chan_adapter->adapt_dev),
   1427 	    periph->periph_target);
   1428 
   1429 	if (!xs->data)
   1430 		return 1;
   1431 
   1432 	io = &ccb->ccb_frame->mfr_io;
   1433 	if (xs->xs_control & XS_CTL_DATA_IN) {
   1434 		io->mif_header.mfh_cmd = MFI_CMD_LD_READ;
   1435 		ccb->ccb_direction = MFI_DATA_IN;
   1436 	} else {
   1437 		io->mif_header.mfh_cmd = MFI_CMD_LD_WRITE;
   1438 		ccb->ccb_direction = MFI_DATA_OUT;
   1439 	}
   1440 	io->mif_header.mfh_target_id = periph->periph_target;
   1441 	io->mif_header.mfh_timeout = 0;
   1442 	io->mif_header.mfh_flags = 0;
   1443 	io->mif_header.mfh_sense_len = MFI_SENSE_SIZE;
   1444 	io->mif_header.mfh_data_len= blockcnt;
   1445 	io->mif_lba_hi = (blockno >> 32);
   1446 	io->mif_lba_lo = (blockno & 0xffffffff);
   1447 	io->mif_sense_addr_lo = htole32(ccb->ccb_psense);
   1448 	io->mif_sense_addr_hi = 0;
   1449 
   1450 	ccb->ccb_done = mfi_scsi_ld_done;
   1451 	ccb->ccb_xs = xs;
   1452 	ccb->ccb_frame_size = MFI_IO_FRAME_SIZE;
   1453 	ccb->ccb_sgl = &io->mif_sgl;
   1454 	ccb->ccb_data = xs->data;
   1455 	ccb->ccb_len = xs->datalen;
   1456 
   1457 	if (mfi_create_sgl(ccb, (xs->xs_control & XS_CTL_NOSLEEP) ?
   1458 	    BUS_DMA_NOWAIT : BUS_DMA_WAITOK))
   1459 		return 1;
   1460 
   1461 	return 0;
   1462 }
   1463 
   1464 static void
   1465 mfi_scsi_ld_done(struct mfi_ccb *ccb)
   1466 {
   1467 	struct mfi_frame_header	*hdr = &ccb->ccb_frame->mfr_header;
   1468 	mfi_scsi_xs_done(ccb, hdr->mfh_cmd_status, hdr->mfh_scsi_status);
   1469 }
   1470 
   1471 static void
   1472 mfi_scsi_xs_done(struct mfi_ccb *ccb, int status, int scsi_status)
   1473 {
   1474 	struct scsipi_xfer	*xs = ccb->ccb_xs;
   1475 	struct mfi_softc	*sc = ccb->ccb_sc;
   1476 
   1477 	DNPRINTF(MFI_D_INTR, "%s: mfi_scsi_xs_done %#lx %#lx\n",
   1478 	    DEVNAME(sc), (u_long)ccb, (u_long)ccb->ccb_frame);
   1479 
   1480 	if (xs->data != NULL) {
   1481 		DNPRINTF(MFI_D_INTR, "%s: mfi_scsi_xs_done sync\n",
   1482 		    DEVNAME(sc));
   1483 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   1484 		    ccb->ccb_dmamap->dm_mapsize,
   1485 		    (xs->xs_control & XS_CTL_DATA_IN) ?
   1486 		    BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
   1487 
   1488 		bus_dmamap_unload(sc->sc_datadmat, ccb->ccb_dmamap);
   1489 	}
   1490 
   1491 	if (status != MFI_STAT_OK) {
   1492 		xs->error = XS_DRIVER_STUFFUP;
   1493 		DNPRINTF(MFI_D_INTR, "%s: mfi_scsi_xs_done stuffup %#x\n",
   1494 		    DEVNAME(sc), status);
   1495 
   1496 		if (scsi_status != 0) {
   1497 			bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_sense),
   1498 			    ccb->ccb_psense - MFIMEM_DVA(sc->sc_sense),
   1499 			    MFI_SENSE_SIZE, BUS_DMASYNC_POSTREAD);
   1500 			DNPRINTF(MFI_D_INTR,
   1501 			    "%s: mfi_scsi_xs_done sense %#x %lx %lx\n",
   1502 			    DEVNAME(sc), scsi_status,
   1503 			    (u_long)&xs->sense, (u_long)ccb->ccb_sense);
   1504 			memset(&xs->sense, 0, sizeof(xs->sense));
   1505 			memcpy(&xs->sense, ccb->ccb_sense,
   1506 			    sizeof(struct scsi_sense_data));
   1507 			xs->error = XS_SENSE;
   1508 		}
   1509 	} else {
   1510 		xs->error = XS_NOERROR;
   1511 		xs->status = SCSI_OK;
   1512 		xs->resid = 0;
   1513 	}
   1514 
   1515 	mfi_put_ccb(ccb);
   1516 	scsipi_done(xs);
   1517 }
   1518 
   1519 static int
   1520 mfi_scsi_ld(struct mfi_ccb *ccb, struct scsipi_xfer *xs)
   1521 {
   1522 	struct mfi_pass_frame	*pf;
   1523 	struct scsipi_periph *periph = xs->xs_periph;
   1524 
   1525 	DNPRINTF(MFI_D_CMD, "%s: mfi_scsi_ld: %d\n",
   1526 	    device_xname(periph->periph_channel->chan_adapter->adapt_dev),
   1527 	    periph->periph_target);
   1528 
   1529 	pf = &ccb->ccb_frame->mfr_pass;
   1530 	pf->mpf_header.mfh_cmd = MFI_CMD_LD_SCSI_IO;
   1531 	pf->mpf_header.mfh_target_id = periph->periph_target;
   1532 	pf->mpf_header.mfh_lun_id = 0;
   1533 	pf->mpf_header.mfh_cdb_len = xs->cmdlen;
   1534 	pf->mpf_header.mfh_timeout = 0;
   1535 	pf->mpf_header.mfh_data_len= xs->datalen; /* XXX */
   1536 	pf->mpf_header.mfh_sense_len = MFI_SENSE_SIZE;
   1537 
   1538 	pf->mpf_sense_addr_hi = 0;
   1539 	pf->mpf_sense_addr_lo = htole32(ccb->ccb_psense);
   1540 
   1541 	memset(pf->mpf_cdb, 0, 16);
   1542 	memcpy(pf->mpf_cdb, &xs->cmdstore, xs->cmdlen);
   1543 
   1544 	ccb->ccb_done = mfi_scsi_ld_done;
   1545 	ccb->ccb_xs = xs;
   1546 	ccb->ccb_frame_size = MFI_PASS_FRAME_SIZE;
   1547 	ccb->ccb_sgl = &pf->mpf_sgl;
   1548 
   1549 	if (xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT))
   1550 		ccb->ccb_direction = (xs->xs_control & XS_CTL_DATA_IN) ?
   1551 		    MFI_DATA_IN : MFI_DATA_OUT;
   1552 	else
   1553 		ccb->ccb_direction = MFI_DATA_NONE;
   1554 
   1555 	if (xs->data) {
   1556 		ccb->ccb_data = xs->data;
   1557 		ccb->ccb_len = xs->datalen;
   1558 
   1559 		if (mfi_create_sgl(ccb, (xs->xs_control & XS_CTL_NOSLEEP) ?
   1560 		    BUS_DMA_NOWAIT : BUS_DMA_WAITOK))
   1561 			return 1;
   1562 	}
   1563 
   1564 	return 0;
   1565 }
   1566 
   1567 static void
   1568 mfi_scsipi_request(struct scsipi_channel *chan, scsipi_adapter_req_t req,
   1569     void *arg)
   1570 {
   1571 	struct scsipi_periph	*periph;
   1572 	struct scsipi_xfer	*xs;
   1573 	struct scsipi_adapter	*adapt = chan->chan_adapter;
   1574 	struct mfi_softc	*sc = device_private(adapt->adapt_dev);
   1575 	struct mfi_ccb		*ccb;
   1576 	struct scsi_rw_6	*rw;
   1577 	struct scsipi_rw_10	*rwb;
   1578 	struct scsipi_rw_12	*rw12;
   1579 	struct scsipi_rw_16	*rw16;
   1580 	uint64_t		blockno;
   1581 	uint32_t		blockcnt;
   1582 	uint8_t			target;
   1583 	uint8_t			mbox[MFI_MBOX_SIZE];
   1584 	int			s;
   1585 
   1586 	switch (req) {
   1587 	case ADAPTER_REQ_GROW_RESOURCES:
   1588 		/* Not supported. */
   1589 		return;
   1590 	case ADAPTER_REQ_SET_XFER_MODE:
   1591 	{
   1592 		struct scsipi_xfer_mode *xm = arg;
   1593 		xm->xm_mode = PERIPH_CAP_TQING;
   1594 		xm->xm_period = 0;
   1595 		xm->xm_offset = 0;
   1596 		scsipi_async_event(&sc->sc_chan, ASYNC_EVENT_XFER_MODE, xm);
   1597 		return;
   1598 	}
   1599 	case ADAPTER_REQ_RUN_XFER:
   1600 		break;
   1601 	}
   1602 
   1603 	xs = arg;
   1604 
   1605 	periph = xs->xs_periph;
   1606 	target = periph->periph_target;
   1607 
   1608 	DNPRINTF(MFI_D_CMD, "%s: mfi_scsipi_request req %d opcode: %#x "
   1609 	    "target %d lun %d\n", DEVNAME(sc), req, xs->cmd->opcode,
   1610 	    periph->periph_target, periph->periph_lun);
   1611 
   1612 	s = splbio();
   1613 	if (target >= MFI_MAX_LD || !sc->sc_ld[target].ld_present ||
   1614 	    periph->periph_lun != 0) {
   1615 		DNPRINTF(MFI_D_CMD, "%s: invalid target %d\n",
   1616 		    DEVNAME(sc), target);
   1617 		xs->error = XS_SELTIMEOUT;
   1618 		scsipi_done(xs);
   1619 		splx(s);
   1620 		return;
   1621 	}
   1622 	if ((xs->cmd->opcode == SCSI_SYNCHRONIZE_CACHE_10 ||
   1623 	    xs->cmd->opcode == SCSI_SYNCHRONIZE_CACHE_16) && sc->sc_bbuok) {
   1624 		/* the cache is stable storage, don't flush */
   1625 		xs->error = XS_NOERROR;
   1626 		xs->status = SCSI_OK;
   1627 		xs->resid = 0;
   1628 		scsipi_done(xs);
   1629 		splx(s);
   1630 		return;
   1631 	}
   1632 
   1633 	if ((ccb = mfi_get_ccb(sc)) == NULL) {
   1634 		DNPRINTF(MFI_D_CMD, "%s: mfi_scsipi_request no ccb\n", DEVNAME(sc));
   1635 		xs->error = XS_RESOURCE_SHORTAGE;
   1636 		scsipi_done(xs);
   1637 		splx(s);
   1638 		return;
   1639 	}
   1640 
   1641 	switch (xs->cmd->opcode) {
   1642 	/* IO path */
   1643 	case READ_16:
   1644 	case WRITE_16:
   1645 		rw16 = (struct scsipi_rw_16 *)xs->cmd;
   1646 		blockno = _8btol(rw16->addr);
   1647 		blockcnt = _4btol(rw16->length);
   1648 		if (sc->sc_iop->mio_ld_io(ccb, xs, blockno, blockcnt)) {
   1649 			goto stuffup;
   1650 		}
   1651 		break;
   1652 
   1653 	case READ_12:
   1654 	case WRITE_12:
   1655 		rw12 = (struct scsipi_rw_12 *)xs->cmd;
   1656 		blockno = _4btol(rw12->addr);
   1657 		blockcnt = _4btol(rw12->length);
   1658 		if (sc->sc_iop->mio_ld_io(ccb, xs, blockno, blockcnt)) {
   1659 			goto stuffup;
   1660 		}
   1661 		break;
   1662 
   1663 	case READ_10:
   1664 	case WRITE_10:
   1665 		rwb = (struct scsipi_rw_10 *)xs->cmd;
   1666 		blockno = _4btol(rwb->addr);
   1667 		blockcnt = _2btol(rwb->length);
   1668 		if (sc->sc_iop->mio_ld_io(ccb, xs, blockno, blockcnt)) {
   1669 			goto stuffup;
   1670 		}
   1671 		break;
   1672 
   1673 	case SCSI_READ_6_COMMAND:
   1674 	case SCSI_WRITE_6_COMMAND:
   1675 		rw = (struct scsi_rw_6 *)xs->cmd;
   1676 		blockno = _3btol(rw->addr) & (SRW_TOPADDR << 16 | 0xffff);
   1677 		blockcnt = rw->length ? rw->length : 0x100;
   1678 		if (sc->sc_iop->mio_ld_io(ccb, xs, blockno, blockcnt)) {
   1679 			goto stuffup;
   1680 		}
   1681 		break;
   1682 
   1683 	case SCSI_SYNCHRONIZE_CACHE_10:
   1684 	case SCSI_SYNCHRONIZE_CACHE_16:
   1685 		mbox[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE;
   1686 		if (mfi_mgmt(ccb, xs,
   1687 		    MR_DCMD_CTRL_CACHE_FLUSH, MFI_DATA_NONE, 0, NULL, mbox)) {
   1688 			goto stuffup;
   1689 		}
   1690 		break;
   1691 
   1692 	/* hand it of to the firmware and let it deal with it */
   1693 	case SCSI_TEST_UNIT_READY:
   1694 		/* save off sd? after autoconf */
   1695 		if (!cold)	/* XXX bogus */
   1696 			strlcpy(sc->sc_ld[target].ld_dev, device_xname(sc->sc_dev),
   1697 			    sizeof(sc->sc_ld[target].ld_dev));
   1698 		/* FALLTHROUGH */
   1699 
   1700 	default:
   1701 		if (mfi_scsi_ld(ccb, xs)) {
   1702 			goto stuffup;
   1703 		}
   1704 		break;
   1705 	}
   1706 
   1707 	DNPRINTF(MFI_D_CMD, "%s: start io %d\n", DEVNAME(sc), target);
   1708 
   1709 	if (xs->xs_control & XS_CTL_POLL) {
   1710 		if (mfi_poll(ccb)) {
   1711 			/* XXX check for sense in ccb->ccb_sense? */
   1712 			aprint_error_dev(sc->sc_dev,
   1713 			    "mfi_scsipi_request poll failed\n");
   1714 			memset(&xs->sense, 0, sizeof(xs->sense));
   1715 			xs->sense.scsi_sense.response_code =
   1716 			    SSD_RCODE_VALID | SSD_RCODE_CURRENT;
   1717 			xs->sense.scsi_sense.flags = SKEY_ILLEGAL_REQUEST;
   1718 			xs->sense.scsi_sense.asc = 0x20; /* invalid opcode */
   1719 			xs->error = XS_SENSE;
   1720 			xs->status = SCSI_CHECK;
   1721 		} else {
   1722 			DNPRINTF(MFI_D_DMA,
   1723 			    "%s: mfi_scsipi_request poll complete %d\n",
   1724 			    DEVNAME(sc), ccb->ccb_dmamap->dm_nsegs);
   1725 			xs->error = XS_NOERROR;
   1726 			xs->status = SCSI_OK;
   1727 			xs->resid = 0;
   1728 		}
   1729 		mfi_put_ccb(ccb);
   1730 		scsipi_done(xs);
   1731 		splx(s);
   1732 		return;
   1733 	}
   1734 
   1735 	mfi_post(sc, ccb);
   1736 
   1737 	DNPRINTF(MFI_D_DMA, "%s: mfi_scsipi_request queued %d\n", DEVNAME(sc),
   1738 	    ccb->ccb_dmamap->dm_nsegs);
   1739 
   1740 	splx(s);
   1741 	return;
   1742 
   1743 stuffup:
   1744 	mfi_put_ccb(ccb);
   1745 	xs->error = XS_DRIVER_STUFFUP;
   1746 	scsipi_done(xs);
   1747 	splx(s);
   1748 }
   1749 
   1750 static int
   1751 mfi_create_sgl(struct mfi_ccb *ccb, int flags)
   1752 {
   1753 	struct mfi_softc	*sc = ccb->ccb_sc;
   1754 	struct mfi_frame_header	*hdr;
   1755 	bus_dma_segment_t	*sgd;
   1756 	union mfi_sgl		*sgl;
   1757 	int			error, i;
   1758 
   1759 	DNPRINTF(MFI_D_DMA, "%s: mfi_create_sgl %#lx\n", DEVNAME(sc),
   1760 	    (u_long)ccb->ccb_data);
   1761 
   1762 	if (!ccb->ccb_data)
   1763 		return 1;
   1764 
   1765 	KASSERT(flags == BUS_DMA_NOWAIT || !cpu_intr_p());
   1766 	error = bus_dmamap_load(sc->sc_datadmat, ccb->ccb_dmamap,
   1767 	    ccb->ccb_data, ccb->ccb_len, NULL, flags);
   1768 	if (error) {
   1769 		if (error == EFBIG) {
   1770 			aprint_error_dev(sc->sc_dev, "more than %d dma segs\n",
   1771 			    sc->sc_max_sgl);
   1772 		} else {
   1773 			aprint_error_dev(sc->sc_dev,
   1774 			    "error %d loading dma map\n", error);
   1775 		}
   1776 		return 1;
   1777 	}
   1778 
   1779 	hdr = &ccb->ccb_frame->mfr_header;
   1780 	sgl = ccb->ccb_sgl;
   1781 	sgd = ccb->ccb_dmamap->dm_segs;
   1782 	for (i = 0; i < ccb->ccb_dmamap->dm_nsegs; i++) {
   1783 		if (sc->sc_ioptype == MFI_IOP_TBOLT &&
   1784 		    (hdr->mfh_cmd == MFI_CMD_PD_SCSI_IO ||
   1785 		     hdr->mfh_cmd == MFI_CMD_LD_READ ||
   1786 		     hdr->mfh_cmd == MFI_CMD_LD_WRITE)) {
   1787 			sgl->sg_ieee[i].addr = htole64(sgd[i].ds_addr);
   1788 			sgl->sg_ieee[i].len = htole32(sgd[i].ds_len);
   1789 			sgl->sg_ieee[i].flags = 0;
   1790 			DNPRINTF(MFI_D_DMA, "%s: addr: %#" PRIx64 " len: %#"
   1791 			    PRIx32 "\n",
   1792 			    DEVNAME(sc), sgl->sg64[i].addr, sgl->sg64[i].len);
   1793 			hdr->mfh_flags |= MFI_FRAME_IEEE_SGL | MFI_FRAME_SGL64;
   1794 		} else if (sc->sc_64bit_dma) {
   1795 			sgl->sg64[i].addr = htole64(sgd[i].ds_addr);
   1796 			sgl->sg64[i].len = htole32(sgd[i].ds_len);
   1797 			DNPRINTF(MFI_D_DMA, "%s: addr: %#" PRIx64 " len: %#"
   1798 			    PRIx32 "\n",
   1799 			    DEVNAME(sc), sgl->sg64[i].addr, sgl->sg64[i].len);
   1800 			hdr->mfh_flags |= MFI_FRAME_SGL64;
   1801 		} else {
   1802 			sgl->sg32[i].addr = htole32(sgd[i].ds_addr);
   1803 			sgl->sg32[i].len = htole32(sgd[i].ds_len);
   1804 			DNPRINTF(MFI_D_DMA, "%s: addr: %#x  len: %#x\n",
   1805 			    DEVNAME(sc), sgl->sg32[i].addr, sgl->sg32[i].len);
   1806 			hdr->mfh_flags |= MFI_FRAME_SGL32;
   1807 		}
   1808 	}
   1809 
   1810 	if (ccb->ccb_direction == MFI_DATA_IN) {
   1811 		hdr->mfh_flags |= MFI_FRAME_DIR_READ;
   1812 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   1813 		    ccb->ccb_dmamap->dm_mapsize, BUS_DMASYNC_PREREAD);
   1814 	} else {
   1815 		hdr->mfh_flags |= MFI_FRAME_DIR_WRITE;
   1816 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   1817 		    ccb->ccb_dmamap->dm_mapsize, BUS_DMASYNC_PREWRITE);
   1818 	}
   1819 
   1820 	hdr->mfh_sg_count = ccb->ccb_dmamap->dm_nsegs;
   1821 	ccb->ccb_frame_size += sc->sc_sgl_size * ccb->ccb_dmamap->dm_nsegs;
   1822 	ccb->ccb_extra_frames = (ccb->ccb_frame_size - 1) / MFI_FRAME_SIZE;
   1823 
   1824 	DNPRINTF(MFI_D_DMA, "%s: sg_count: %d  frame_size: %d  frames_size: %d"
   1825 	    "  dm_nsegs: %d  extra_frames: %d\n",
   1826 	    DEVNAME(sc),
   1827 	    hdr->mfh_sg_count,
   1828 	    ccb->ccb_frame_size,
   1829 	    sc->sc_frames_size,
   1830 	    ccb->ccb_dmamap->dm_nsegs,
   1831 	    ccb->ccb_extra_frames);
   1832 
   1833 	return 0;
   1834 }
   1835 
   1836 static int
   1837 mfi_mgmt_internal(struct mfi_softc *sc, uint32_t opc, uint32_t dir,
   1838     uint32_t len, void *buf, uint8_t *mbox, bool poll)
   1839 {
   1840 	struct mfi_ccb		*ccb;
   1841 	int			rv = 1;
   1842 
   1843 	if ((ccb = mfi_get_ccb(sc)) == NULL)
   1844 		return rv;
   1845 	rv = mfi_mgmt(ccb, NULL, opc, dir, len, buf, mbox);
   1846 	if (rv)
   1847 		return rv;
   1848 
   1849 	if (poll) {
   1850 		rv = 1;
   1851 		if (mfi_poll(ccb))
   1852 			goto done;
   1853 	} else {
   1854 		mfi_post(sc, ccb);
   1855 
   1856 		DNPRINTF(MFI_D_MISC, "%s: mfi_mgmt_internal sleeping\n",
   1857 		    DEVNAME(sc));
   1858 		while (ccb->ccb_state != MFI_CCB_DONE)
   1859 			tsleep(ccb, PRIBIO, "mfi_mgmt", 0);
   1860 
   1861 		if (ccb->ccb_flags & MFI_CCB_F_ERR)
   1862 			goto done;
   1863 	}
   1864 	rv = 0;
   1865 
   1866 done:
   1867 	mfi_put_ccb(ccb);
   1868 	return rv;
   1869 }
   1870 
   1871 static int
   1872 mfi_mgmt(struct mfi_ccb *ccb, struct scsipi_xfer *xs,
   1873     uint32_t opc, uint32_t dir, uint32_t len, void *buf, uint8_t *mbox)
   1874 {
   1875 	struct mfi_dcmd_frame	*dcmd;
   1876 
   1877 	DNPRINTF(MFI_D_MISC, "%s: mfi_mgmt %#x\n", DEVNAME(ccb->ccb_sc), opc);
   1878 
   1879 	dcmd = &ccb->ccb_frame->mfr_dcmd;
   1880 	memset(dcmd->mdf_mbox.b, 0, MFI_MBOX_SIZE);
   1881 	dcmd->mdf_header.mfh_cmd = MFI_CMD_DCMD;
   1882 	dcmd->mdf_header.mfh_timeout = 0;
   1883 
   1884 	dcmd->mdf_opcode = opc;
   1885 	dcmd->mdf_header.mfh_data_len = 0;
   1886 	ccb->ccb_direction = dir;
   1887 	ccb->ccb_xs = xs;
   1888 	ccb->ccb_done = mfi_mgmt_done;
   1889 
   1890 	ccb->ccb_frame_size = MFI_DCMD_FRAME_SIZE;
   1891 
   1892 	/* handle special opcodes */
   1893 	if (mbox)
   1894 		memcpy(dcmd->mdf_mbox.b, mbox, MFI_MBOX_SIZE);
   1895 
   1896 	if (dir != MFI_DATA_NONE) {
   1897 		dcmd->mdf_header.mfh_data_len = len;
   1898 		ccb->ccb_data = buf;
   1899 		ccb->ccb_len = len;
   1900 		ccb->ccb_sgl = &dcmd->mdf_sgl;
   1901 
   1902 		if (mfi_create_sgl(ccb, BUS_DMA_WAITOK))
   1903 			return 1;
   1904 	}
   1905 	return 0;
   1906 }
   1907 
   1908 static void
   1909 mfi_mgmt_done(struct mfi_ccb *ccb)
   1910 {
   1911 	struct scsipi_xfer	*xs = ccb->ccb_xs;
   1912 	struct mfi_softc	*sc = ccb->ccb_sc;
   1913 	struct mfi_frame_header	*hdr = &ccb->ccb_frame->mfr_header;
   1914 
   1915 	DNPRINTF(MFI_D_INTR, "%s: mfi_mgmt_done %#lx %#lx\n",
   1916 	    DEVNAME(sc), (u_long)ccb, (u_long)ccb->ccb_frame);
   1917 
   1918 	if (ccb->ccb_data != NULL) {
   1919 		DNPRINTF(MFI_D_INTR, "%s: mfi_mgmt_done sync\n",
   1920 		    DEVNAME(sc));
   1921 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   1922 		    ccb->ccb_dmamap->dm_mapsize,
   1923 		    (ccb->ccb_direction & MFI_DATA_IN) ?
   1924 		    BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
   1925 
   1926 		bus_dmamap_unload(sc->sc_datadmat, ccb->ccb_dmamap);
   1927 	}
   1928 
   1929 	if (hdr->mfh_cmd_status != MFI_STAT_OK)
   1930 		ccb->ccb_flags |= MFI_CCB_F_ERR;
   1931 
   1932 	ccb->ccb_state = MFI_CCB_DONE;
   1933 	if (xs) {
   1934 		if (hdr->mfh_cmd_status != MFI_STAT_OK) {
   1935 			xs->error = XS_DRIVER_STUFFUP;
   1936 		} else {
   1937 			xs->error = XS_NOERROR;
   1938 			xs->status = SCSI_OK;
   1939 			xs->resid = 0;
   1940 		}
   1941 		mfi_put_ccb(ccb);
   1942 		scsipi_done(xs);
   1943 	} else
   1944 		wakeup(ccb);
   1945 }
   1946 
   1947 #if NBIO > 0
   1948 int
   1949 mfi_ioctl(device_t dev, u_long cmd, void *addr)
   1950 {
   1951 	struct mfi_softc *sc = device_private(dev);
   1952 	int error = 0;
   1953 	int s;
   1954 
   1955 	KERNEL_LOCK(1, curlwp);
   1956 	s = splbio();
   1957 
   1958 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl ", DEVNAME(sc));
   1959 
   1960 	switch (cmd) {
   1961 	case BIOCINQ:
   1962 		DNPRINTF(MFI_D_IOCTL, "inq\n");
   1963 		error = mfi_ioctl_inq(sc, (struct bioc_inq *)addr);
   1964 		break;
   1965 
   1966 	case BIOCVOL:
   1967 		DNPRINTF(MFI_D_IOCTL, "vol\n");
   1968 		error = mfi_ioctl_vol(sc, (struct bioc_vol *)addr);
   1969 		break;
   1970 
   1971 	case BIOCDISK:
   1972 		DNPRINTF(MFI_D_IOCTL, "disk\n");
   1973 		error = mfi_ioctl_disk(sc, (struct bioc_disk *)addr);
   1974 		break;
   1975 
   1976 	case BIOCALARM:
   1977 		DNPRINTF(MFI_D_IOCTL, "alarm\n");
   1978 		error = mfi_ioctl_alarm(sc, (struct bioc_alarm *)addr);
   1979 		break;
   1980 
   1981 	case BIOCBLINK:
   1982 		DNPRINTF(MFI_D_IOCTL, "blink\n");
   1983 		error = mfi_ioctl_blink(sc, (struct bioc_blink *)addr);
   1984 		break;
   1985 
   1986 	case BIOCSETSTATE:
   1987 		DNPRINTF(MFI_D_IOCTL, "setstate\n");
   1988 		error = mfi_ioctl_setstate(sc, (struct bioc_setstate *)addr);
   1989 		break;
   1990 
   1991 	default:
   1992 		DNPRINTF(MFI_D_IOCTL, " invalid ioctl\n");
   1993 		error = EINVAL;
   1994 	}
   1995 	splx(s);
   1996 	KERNEL_UNLOCK_ONE(curlwp);
   1997 
   1998 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl return %x\n", DEVNAME(sc), error);
   1999 	return error;
   2000 }
   2001 
   2002 static int
   2003 mfi_ioctl_inq(struct mfi_softc *sc, struct bioc_inq *bi)
   2004 {
   2005 	struct mfi_conf		*cfg;
   2006 	int			rv = EINVAL;
   2007 
   2008 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_inq\n", DEVNAME(sc));
   2009 
   2010 	if (mfi_get_info(sc)) {
   2011 		DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_inq failed\n",
   2012 		    DEVNAME(sc));
   2013 		return EIO;
   2014 	}
   2015 
   2016 	/* get figures */
   2017 	cfg = malloc(sizeof *cfg, M_DEVBUF, M_WAITOK);
   2018 	if (mfi_mgmt_internal(sc, MR_DCMD_CONF_GET, MFI_DATA_IN,
   2019 	    sizeof *cfg, cfg, NULL, false))
   2020 		goto freeme;
   2021 
   2022 	strlcpy(bi->bi_dev, DEVNAME(sc), sizeof(bi->bi_dev));
   2023 	bi->bi_novol = cfg->mfc_no_ld + cfg->mfc_no_hs;
   2024 	bi->bi_nodisk = sc->sc_info.mci_pd_disks_present;
   2025 
   2026 	rv = 0;
   2027 freeme:
   2028 	free(cfg, M_DEVBUF);
   2029 	return rv;
   2030 }
   2031 
   2032 static int
   2033 mfi_ioctl_vol(struct mfi_softc *sc, struct bioc_vol *bv)
   2034 {
   2035 	int			i, per, rv = EINVAL;
   2036 	uint8_t			mbox[MFI_MBOX_SIZE];
   2037 
   2038 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_vol %#x\n",
   2039 	    DEVNAME(sc), bv->bv_volid);
   2040 
   2041 	if (mfi_mgmt_internal(sc, MR_DCMD_LD_GET_LIST, MFI_DATA_IN,
   2042 	    sizeof(sc->sc_ld_list), &sc->sc_ld_list, NULL, false))
   2043 		goto done;
   2044 
   2045 	i = bv->bv_volid;
   2046 	mbox[0] = sc->sc_ld_list.mll_list[i].mll_ld.mld_target;
   2047 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_vol target %#x\n",
   2048 	    DEVNAME(sc), mbox[0]);
   2049 
   2050 	if (mfi_mgmt_internal(sc, MR_DCMD_LD_GET_INFO, MFI_DATA_IN,
   2051 	    sizeof(sc->sc_ld_details), &sc->sc_ld_details, mbox, false))
   2052 		goto done;
   2053 
   2054 	if (bv->bv_volid >= sc->sc_ld_list.mll_no_ld) {
   2055 		/* go do hotspares */
   2056 		rv = mfi_bio_hs(sc, bv->bv_volid, MFI_MGMT_VD, bv);
   2057 		goto done;
   2058 	}
   2059 
   2060 	strlcpy(bv->bv_dev, sc->sc_ld[i].ld_dev, sizeof(bv->bv_dev));
   2061 
   2062 	switch(sc->sc_ld_list.mll_list[i].mll_state) {
   2063 	case MFI_LD_OFFLINE:
   2064 		bv->bv_status = BIOC_SVOFFLINE;
   2065 		break;
   2066 
   2067 	case MFI_LD_PART_DEGRADED:
   2068 	case MFI_LD_DEGRADED:
   2069 		bv->bv_status = BIOC_SVDEGRADED;
   2070 		break;
   2071 
   2072 	case MFI_LD_ONLINE:
   2073 		bv->bv_status = BIOC_SVONLINE;
   2074 		break;
   2075 
   2076 	default:
   2077 		bv->bv_status = BIOC_SVINVALID;
   2078 		DNPRINTF(MFI_D_IOCTL, "%s: invalid logical disk state %#x\n",
   2079 		    DEVNAME(sc),
   2080 		    sc->sc_ld_list.mll_list[i].mll_state);
   2081 	}
   2082 
   2083 	/* additional status can modify MFI status */
   2084 	switch (sc->sc_ld_details.mld_progress.mlp_in_prog) {
   2085 	case MFI_LD_PROG_CC:
   2086 	case MFI_LD_PROG_BGI:
   2087 		bv->bv_status = BIOC_SVSCRUB;
   2088 		per = (int)sc->sc_ld_details.mld_progress.mlp_cc.mp_progress;
   2089 		bv->bv_percent = (per * 100) / 0xffff;
   2090 		bv->bv_seconds =
   2091 		    sc->sc_ld_details.mld_progress.mlp_cc.mp_elapsed_seconds;
   2092 		break;
   2093 
   2094 	case MFI_LD_PROG_FGI:
   2095 	case MFI_LD_PROG_RECONSTRUCT:
   2096 		/* nothing yet */
   2097 		break;
   2098 	}
   2099 
   2100 	/*
   2101 	 * The RAID levels are determined per the SNIA DDF spec, this is only
   2102 	 * a subset that is valid for the MFI contrller.
   2103 	 */
   2104 	bv->bv_level = sc->sc_ld_details.mld_cfg.mlc_parm.mpa_pri_raid;
   2105 	if (sc->sc_ld_details.mld_cfg.mlc_parm.mpa_sec_raid ==
   2106 	    MFI_DDF_SRL_SPANNED)
   2107 		bv->bv_level *= 10;
   2108 
   2109 	bv->bv_nodisk = sc->sc_ld_details.mld_cfg.mlc_parm.mpa_no_drv_per_span *
   2110 	    sc->sc_ld_details.mld_cfg.mlc_parm.mpa_span_depth;
   2111 
   2112 	bv->bv_size = sc->sc_ld_details.mld_size * 512; /* bytes per block */
   2113 
   2114 	rv = 0;
   2115 done:
   2116 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_vol done %x\n",
   2117 	    DEVNAME(sc), rv);
   2118 	return rv;
   2119 }
   2120 
   2121 static int
   2122 mfi_ioctl_disk(struct mfi_softc *sc, struct bioc_disk *bd)
   2123 {
   2124 	struct mfi_conf		*cfg;
   2125 	struct mfi_array	*ar;
   2126 	struct mfi_ld_cfg	*ld;
   2127 	struct mfi_pd_details	*pd;
   2128 	struct scsipi_inquiry_data *inqbuf;
   2129 	char			vend[8+16+4+1];
   2130 	int			i, rv = EINVAL;
   2131 	int			arr, vol, disk;
   2132 	uint32_t		size;
   2133 	uint8_t			mbox[MFI_MBOX_SIZE];
   2134 
   2135 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_disk %#x\n",
   2136 	    DEVNAME(sc), bd->bd_diskid);
   2137 
   2138 	pd = malloc(sizeof *pd, M_DEVBUF, M_WAITOK | M_ZERO);
   2139 
   2140 	/* send single element command to retrieve size for full structure */
   2141 	cfg = malloc(sizeof *cfg, M_DEVBUF, M_WAITOK);
   2142 	if (mfi_mgmt_internal(sc, MR_DCMD_CONF_GET, MFI_DATA_IN,
   2143 	    sizeof *cfg, cfg, NULL, false))
   2144 		goto freeme;
   2145 
   2146 	size = cfg->mfc_size;
   2147 	free(cfg, M_DEVBUF);
   2148 
   2149 	/* memory for read config */
   2150 	cfg = malloc(size, M_DEVBUF, M_WAITOK|M_ZERO);
   2151 	if (mfi_mgmt_internal(sc, MR_DCMD_CONF_GET, MFI_DATA_IN,
   2152 	    size, cfg, NULL, false))
   2153 		goto freeme;
   2154 
   2155 	ar = cfg->mfc_array;
   2156 
   2157 	/* calculate offset to ld structure */
   2158 	ld = (struct mfi_ld_cfg *)(
   2159 	    ((uint8_t *)cfg) + offsetof(struct mfi_conf, mfc_array) +
   2160 	    cfg->mfc_array_size * cfg->mfc_no_array);
   2161 
   2162 	vol = bd->bd_volid;
   2163 
   2164 	if (vol >= cfg->mfc_no_ld) {
   2165 		/* do hotspares */
   2166 		rv = mfi_bio_hs(sc, bd->bd_volid, MFI_MGMT_SD, bd);
   2167 		goto freeme;
   2168 	}
   2169 
   2170 	/* find corresponding array for ld */
   2171 	for (i = 0, arr = 0; i < vol; i++)
   2172 		arr += ld[i].mlc_parm.mpa_span_depth;
   2173 
   2174 	/* offset disk into pd list */
   2175 	disk = bd->bd_diskid % ld[vol].mlc_parm.mpa_no_drv_per_span;
   2176 
   2177 	/* offset array index into the next spans */
   2178 	arr += bd->bd_diskid / ld[vol].mlc_parm.mpa_no_drv_per_span;
   2179 
   2180 	bd->bd_target = ar[arr].pd[disk].mar_enc_slot;
   2181 	switch (ar[arr].pd[disk].mar_pd_state){
   2182 	case MFI_PD_UNCONFIG_GOOD:
   2183 		bd->bd_status = BIOC_SDUNUSED;
   2184 		break;
   2185 
   2186 	case MFI_PD_HOTSPARE: /* XXX dedicated hotspare part of array? */
   2187 		bd->bd_status = BIOC_SDHOTSPARE;
   2188 		break;
   2189 
   2190 	case MFI_PD_OFFLINE:
   2191 		bd->bd_status = BIOC_SDOFFLINE;
   2192 		break;
   2193 
   2194 	case MFI_PD_FAILED:
   2195 		bd->bd_status = BIOC_SDFAILED;
   2196 		break;
   2197 
   2198 	case MFI_PD_REBUILD:
   2199 		bd->bd_status = BIOC_SDREBUILD;
   2200 		break;
   2201 
   2202 	case MFI_PD_ONLINE:
   2203 		bd->bd_status = BIOC_SDONLINE;
   2204 		break;
   2205 
   2206 	case MFI_PD_UNCONFIG_BAD: /* XXX define new state in bio */
   2207 	default:
   2208 		bd->bd_status = BIOC_SDINVALID;
   2209 		break;
   2210 
   2211 	}
   2212 
   2213 	/* get the remaining fields */
   2214 	*((uint16_t *)&mbox) = ar[arr].pd[disk].mar_pd.mfp_id;
   2215 	memset(pd, 0, sizeof(*pd));
   2216 	if (mfi_mgmt_internal(sc, MR_DCMD_PD_GET_INFO, MFI_DATA_IN,
   2217 	    sizeof *pd, pd, mbox, false))
   2218 		goto freeme;
   2219 
   2220 	bd->bd_size = pd->mpd_size * 512; /* bytes per block */
   2221 
   2222 	/* if pd->mpd_enc_idx is 0 then it is not in an enclosure */
   2223 	bd->bd_channel = pd->mpd_enc_idx;
   2224 
   2225 	inqbuf = (struct scsipi_inquiry_data *)&pd->mpd_inq_data;
   2226 	memcpy(vend, inqbuf->vendor, sizeof vend - 1);
   2227 	vend[sizeof vend - 1] = '\0';
   2228 	strlcpy(bd->bd_vendor, vend, sizeof(bd->bd_vendor));
   2229 
   2230 	/* XXX find a way to retrieve serial nr from drive */
   2231 	/* XXX find a way to get bd_procdev */
   2232 
   2233 	rv = 0;
   2234 freeme:
   2235 	free(pd, M_DEVBUF);
   2236 	free(cfg, M_DEVBUF);
   2237 
   2238 	return rv;
   2239 }
   2240 
   2241 static int
   2242 mfi_ioctl_alarm(struct mfi_softc *sc, struct bioc_alarm *ba)
   2243 {
   2244 	uint32_t		opc, dir = MFI_DATA_NONE;
   2245 	int			rv = 0;
   2246 	int8_t			ret;
   2247 
   2248 	switch(ba->ba_opcode) {
   2249 	case BIOC_SADISABLE:
   2250 		opc = MR_DCMD_SPEAKER_DISABLE;
   2251 		break;
   2252 
   2253 	case BIOC_SAENABLE:
   2254 		opc = MR_DCMD_SPEAKER_ENABLE;
   2255 		break;
   2256 
   2257 	case BIOC_SASILENCE:
   2258 		opc = MR_DCMD_SPEAKER_SILENCE;
   2259 		break;
   2260 
   2261 	case BIOC_GASTATUS:
   2262 		opc = MR_DCMD_SPEAKER_GET;
   2263 		dir = MFI_DATA_IN;
   2264 		break;
   2265 
   2266 	case BIOC_SATEST:
   2267 		opc = MR_DCMD_SPEAKER_TEST;
   2268 		break;
   2269 
   2270 	default:
   2271 		DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_alarm biocalarm invalid "
   2272 		    "opcode %x\n", DEVNAME(sc), ba->ba_opcode);
   2273 		return EINVAL;
   2274 	}
   2275 
   2276 	if (mfi_mgmt_internal(sc, opc, dir, sizeof(ret), &ret, NULL, false))
   2277 		rv = EINVAL;
   2278 	else
   2279 		if (ba->ba_opcode == BIOC_GASTATUS)
   2280 			ba->ba_status = ret;
   2281 		else
   2282 			ba->ba_status = 0;
   2283 
   2284 	return rv;
   2285 }
   2286 
   2287 static int
   2288 mfi_ioctl_blink(struct mfi_softc *sc, struct bioc_blink *bb)
   2289 {
   2290 	int			i, found, rv = EINVAL;
   2291 	uint8_t			mbox[MFI_MBOX_SIZE];
   2292 	uint32_t		cmd;
   2293 	struct mfi_pd_list	*pd;
   2294 
   2295 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_blink %x\n", DEVNAME(sc),
   2296 	    bb->bb_status);
   2297 
   2298 	/* channel 0 means not in an enclosure so can't be blinked */
   2299 	if (bb->bb_channel == 0)
   2300 		return EINVAL;
   2301 
   2302 	pd = malloc(MFI_PD_LIST_SIZE, M_DEVBUF, M_WAITOK);
   2303 
   2304 	if (mfi_mgmt_internal(sc, MR_DCMD_PD_GET_LIST, MFI_DATA_IN,
   2305 	    MFI_PD_LIST_SIZE, pd, NULL, false))
   2306 		goto done;
   2307 
   2308 	for (i = 0, found = 0; i < pd->mpl_no_pd; i++)
   2309 		if (bb->bb_channel == pd->mpl_address[i].mpa_enc_index &&
   2310 		    bb->bb_target == pd->mpl_address[i].mpa_enc_slot) {
   2311 		    	found = 1;
   2312 			break;
   2313 		}
   2314 
   2315 	if (!found)
   2316 		goto done;
   2317 
   2318 	memset(mbox, 0, sizeof mbox);
   2319 
   2320 	*((uint16_t *)&mbox) = pd->mpl_address[i].mpa_pd_id;
   2321 
   2322 	switch (bb->bb_status) {
   2323 	case BIOC_SBUNBLINK:
   2324 		cmd = MR_DCMD_PD_UNBLINK;
   2325 		break;
   2326 
   2327 	case BIOC_SBBLINK:
   2328 		cmd = MR_DCMD_PD_BLINK;
   2329 		break;
   2330 
   2331 	case BIOC_SBALARM:
   2332 	default:
   2333 		DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_blink biocblink invalid "
   2334 		    "opcode %x\n", DEVNAME(sc), bb->bb_status);
   2335 		goto done;
   2336 	}
   2337 
   2338 
   2339 	if (mfi_mgmt_internal(sc, cmd, MFI_DATA_NONE, 0, NULL, mbox, false))
   2340 		goto done;
   2341 
   2342 	rv = 0;
   2343 done:
   2344 	free(pd, M_DEVBUF);
   2345 	return rv;
   2346 }
   2347 
   2348 static int
   2349 mfi_ioctl_setstate(struct mfi_softc *sc, struct bioc_setstate *bs)
   2350 {
   2351 	struct mfi_pd_list	*pd;
   2352 	int			i, found, rv = EINVAL;
   2353 	uint8_t			mbox[MFI_MBOX_SIZE];
   2354 
   2355 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_setstate %x\n", DEVNAME(sc),
   2356 	    bs->bs_status);
   2357 
   2358 	pd = malloc(MFI_PD_LIST_SIZE, M_DEVBUF, M_WAITOK);
   2359 
   2360 	if (mfi_mgmt_internal(sc, MR_DCMD_PD_GET_LIST, MFI_DATA_IN,
   2361 	    MFI_PD_LIST_SIZE, pd, NULL, false))
   2362 		goto done;
   2363 
   2364 	for (i = 0, found = 0; i < pd->mpl_no_pd; i++)
   2365 		if (bs->bs_channel == pd->mpl_address[i].mpa_enc_index &&
   2366 		    bs->bs_target == pd->mpl_address[i].mpa_enc_slot) {
   2367 		    	found = 1;
   2368 			break;
   2369 		}
   2370 
   2371 	if (!found)
   2372 		goto done;
   2373 
   2374 	memset(mbox, 0, sizeof mbox);
   2375 
   2376 	*((uint16_t *)&mbox) = pd->mpl_address[i].mpa_pd_id;
   2377 
   2378 	switch (bs->bs_status) {
   2379 	case BIOC_SSONLINE:
   2380 		mbox[2] = MFI_PD_ONLINE;
   2381 		break;
   2382 
   2383 	case BIOC_SSOFFLINE:
   2384 		mbox[2] = MFI_PD_OFFLINE;
   2385 		break;
   2386 
   2387 	case BIOC_SSHOTSPARE:
   2388 		mbox[2] = MFI_PD_HOTSPARE;
   2389 		break;
   2390 /*
   2391 	case BIOC_SSREBUILD:
   2392 		break;
   2393 */
   2394 	default:
   2395 		DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_setstate invalid "
   2396 		    "opcode %x\n", DEVNAME(sc), bs->bs_status);
   2397 		goto done;
   2398 	}
   2399 
   2400 
   2401 	if (mfi_mgmt_internal(sc, MR_DCMD_PD_SET_STATE, MFI_DATA_NONE,
   2402 	    0, NULL, mbox, false))
   2403 		goto done;
   2404 
   2405 	rv = 0;
   2406 done:
   2407 	free(pd, M_DEVBUF);
   2408 	return rv;
   2409 }
   2410 
   2411 static int
   2412 mfi_bio_hs(struct mfi_softc *sc, int volid, int type, void *bio_hs)
   2413 {
   2414 	struct mfi_conf		*cfg;
   2415 	struct mfi_hotspare	*hs;
   2416 	struct mfi_pd_details	*pd;
   2417 	struct bioc_disk	*sdhs;
   2418 	struct bioc_vol		*vdhs;
   2419 	struct scsipi_inquiry_data *inqbuf;
   2420 	char			vend[8+16+4+1];
   2421 	int			i, rv = EINVAL;
   2422 	uint32_t		size;
   2423 	uint8_t			mbox[MFI_MBOX_SIZE];
   2424 
   2425 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_vol_hs %d\n", DEVNAME(sc), volid);
   2426 
   2427 	if (!bio_hs)
   2428 		return EINVAL;
   2429 
   2430 	pd = malloc(sizeof *pd, M_DEVBUF, M_WAITOK | M_ZERO);
   2431 
   2432 	/* send single element command to retrieve size for full structure */
   2433 	cfg = malloc(sizeof *cfg, M_DEVBUF, M_WAITOK);
   2434 	if (mfi_mgmt_internal(sc, MR_DCMD_CONF_GET, MFI_DATA_IN,
   2435 	    sizeof *cfg, cfg, NULL, false))
   2436 		goto freeme;
   2437 
   2438 	size = cfg->mfc_size;
   2439 	free(cfg, M_DEVBUF);
   2440 
   2441 	/* memory for read config */
   2442 	cfg = malloc(size, M_DEVBUF, M_WAITOK|M_ZERO);
   2443 	if (mfi_mgmt_internal(sc, MR_DCMD_CONF_GET, MFI_DATA_IN,
   2444 	    size, cfg, NULL, false))
   2445 		goto freeme;
   2446 
   2447 	/* calculate offset to hs structure */
   2448 	hs = (struct mfi_hotspare *)(
   2449 	    ((uint8_t *)cfg) + offsetof(struct mfi_conf, mfc_array) +
   2450 	    cfg->mfc_array_size * cfg->mfc_no_array +
   2451 	    cfg->mfc_ld_size * cfg->mfc_no_ld);
   2452 
   2453 	if (volid < cfg->mfc_no_ld)
   2454 		goto freeme; /* not a hotspare */
   2455 
   2456 	if (volid > (cfg->mfc_no_ld + cfg->mfc_no_hs))
   2457 		goto freeme; /* not a hotspare */
   2458 
   2459 	/* offset into hotspare structure */
   2460 	i = volid - cfg->mfc_no_ld;
   2461 
   2462 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_vol_hs i %d volid %d no_ld %d no_hs %d "
   2463 	    "hs %p cfg %p id %02x\n", DEVNAME(sc), i, volid, cfg->mfc_no_ld,
   2464 	    cfg->mfc_no_hs, hs, cfg, hs[i].mhs_pd.mfp_id);
   2465 
   2466 	/* get pd fields */
   2467 	memset(mbox, 0, sizeof mbox);
   2468 	*((uint16_t *)&mbox) = hs[i].mhs_pd.mfp_id;
   2469 	if (mfi_mgmt_internal(sc, MR_DCMD_PD_GET_INFO, MFI_DATA_IN,
   2470 	    sizeof *pd, pd, mbox, false)) {
   2471 		DNPRINTF(MFI_D_IOCTL, "%s: mfi_vol_hs illegal PD\n",
   2472 		    DEVNAME(sc));
   2473 		goto freeme;
   2474 	}
   2475 
   2476 	switch (type) {
   2477 	case MFI_MGMT_VD:
   2478 		vdhs = bio_hs;
   2479 		vdhs->bv_status = BIOC_SVONLINE;
   2480 		vdhs->bv_size = pd->mpd_size * 512; /* bytes per block */
   2481 		vdhs->bv_level = -1; /* hotspare */
   2482 		vdhs->bv_nodisk = 1;
   2483 		break;
   2484 
   2485 	case MFI_MGMT_SD:
   2486 		sdhs = bio_hs;
   2487 		sdhs->bd_status = BIOC_SDHOTSPARE;
   2488 		sdhs->bd_size = pd->mpd_size * 512; /* bytes per block */
   2489 		sdhs->bd_channel = pd->mpd_enc_idx;
   2490 		sdhs->bd_target = pd->mpd_enc_slot;
   2491 		inqbuf = (struct scsipi_inquiry_data *)&pd->mpd_inq_data;
   2492 		memcpy(vend, inqbuf->vendor, sizeof(vend) - 1);
   2493 		vend[sizeof vend - 1] = '\0';
   2494 		strlcpy(sdhs->bd_vendor, vend, sizeof(sdhs->bd_vendor));
   2495 		break;
   2496 
   2497 	default:
   2498 		goto freeme;
   2499 	}
   2500 
   2501 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_vol_hs 6\n", DEVNAME(sc));
   2502 	rv = 0;
   2503 freeme:
   2504 	free(pd, M_DEVBUF);
   2505 	free(cfg, M_DEVBUF);
   2506 
   2507 	return rv;
   2508 }
   2509 
   2510 static int
   2511 mfi_destroy_sensors(struct mfi_softc *sc)
   2512 {
   2513 	if (sc->sc_sme == NULL)
   2514 		return 0;
   2515 	sysmon_envsys_unregister(sc->sc_sme);
   2516 	sc->sc_sme = NULL;
   2517 	free(sc->sc_sensor, M_DEVBUF);
   2518 	return 0;
   2519 }
   2520 
   2521 static int
   2522 mfi_create_sensors(struct mfi_softc *sc)
   2523 {
   2524 	int i;
   2525 	int nsensors = sc->sc_ld_cnt + 1;
   2526 	int rv;
   2527 
   2528 	sc->sc_sme = sysmon_envsys_create();
   2529 	sc->sc_sensor = malloc(sizeof(envsys_data_t) * nsensors,
   2530 	    M_DEVBUF, M_WAITOK | M_ZERO);
   2531 
   2532 	/* BBU */
   2533 	sc->sc_sensor[0].units = ENVSYS_INDICATOR;
   2534 	sc->sc_sensor[0].state = ENVSYS_SINVALID;
   2535 	sc->sc_sensor[0].value_cur = 0;
   2536 	/* Enable monitoring for BBU state changes, if present */
   2537 	if (sc->sc_info.mci_hw_present & MFI_INFO_HW_BBU)
   2538 		sc->sc_sensor[0].flags |= ENVSYS_FMONCRITICAL;
   2539 	snprintf(sc->sc_sensor[0].desc,
   2540 	    sizeof(sc->sc_sensor[0].desc), "%s BBU", DEVNAME(sc));
   2541 	if (sysmon_envsys_sensor_attach(sc->sc_sme, &sc->sc_sensor[0]))
   2542 		goto out;
   2543 
   2544 	for (i = 1; i < nsensors; i++) {
   2545 		sc->sc_sensor[i].units = ENVSYS_DRIVE;
   2546 		sc->sc_sensor[i].state = ENVSYS_SINVALID;
   2547 		sc->sc_sensor[i].value_cur = ENVSYS_DRIVE_EMPTY;
   2548 		/* Enable monitoring for drive state changes */
   2549 		sc->sc_sensor[i].flags |= ENVSYS_FMONSTCHANGED;
   2550 		/* logical drives */
   2551 		snprintf(sc->sc_sensor[i].desc,
   2552 		    sizeof(sc->sc_sensor[i].desc), "%s:%d",
   2553 		    DEVNAME(sc), i - 1);
   2554 		if (sysmon_envsys_sensor_attach(sc->sc_sme,
   2555 						&sc->sc_sensor[i]))
   2556 			goto out;
   2557 	}
   2558 
   2559 	sc->sc_sme->sme_name = DEVNAME(sc);
   2560 	sc->sc_sme->sme_cookie = sc;
   2561 	sc->sc_sme->sme_refresh = mfi_sensor_refresh;
   2562 	rv = sysmon_envsys_register(sc->sc_sme);
   2563 	if (rv != 0) {
   2564 		aprint_error_dev(sc->sc_dev,
   2565 		    "unable to register with sysmon (rv = %d)\n", rv);
   2566 		goto out;
   2567 	}
   2568 	return 0;
   2569 
   2570 out:
   2571 	free(sc->sc_sensor, M_DEVBUF);
   2572 	sysmon_envsys_destroy(sc->sc_sme);
   2573 	sc->sc_sme = NULL;
   2574 	return EINVAL;
   2575 }
   2576 
   2577 static void
   2578 mfi_sensor_refresh(struct sysmon_envsys *sme, envsys_data_t *edata)
   2579 {
   2580 	struct mfi_softc	*sc = sme->sme_cookie;
   2581 	struct bioc_vol		bv;
   2582 	int s;
   2583 	int error;
   2584 
   2585 	if (edata->sensor >= sc->sc_ld_cnt + 1)
   2586 		return;
   2587 
   2588 	if (edata->sensor == 0) {
   2589 		/* BBU */
   2590 		struct mfi_bbu_status	bbu_stat;
   2591 		int bbu_status;
   2592 		if ((sc->sc_info.mci_hw_present & MFI_INFO_HW_BBU) == 0)
   2593 			return;
   2594 
   2595 		KERNEL_LOCK(1, curlwp);
   2596 		s = splbio();
   2597 		bbu_status = mfi_get_bbu(sc, &bbu_stat);
   2598 		splx(s);
   2599 		KERNEL_UNLOCK_ONE(curlwp);
   2600 		switch(bbu_status) {
   2601 		case MFI_BBU_GOOD:
   2602 			edata->value_cur = 1;
   2603 			edata->state = ENVSYS_SVALID;
   2604 			if (!sc->sc_bbuok)
   2605 				aprint_normal_dev(sc->sc_dev,
   2606 				    "BBU state changed to good\n");
   2607 			sc->sc_bbuok = true;
   2608 			break;
   2609 		case MFI_BBU_BAD:
   2610 			edata->value_cur = 0;
   2611 			edata->state = ENVSYS_SCRITICAL;
   2612 			if (sc->sc_bbuok)
   2613 				aprint_normal_dev(sc->sc_dev,
   2614 				    "BBU state changed to bad\n");
   2615 			sc->sc_bbuok = false;
   2616 			break;
   2617 		case MFI_BBU_UNKNOWN:
   2618 		default:
   2619 			edata->value_cur = 0;
   2620 			edata->state = ENVSYS_SINVALID;
   2621 			sc->sc_bbuok = false;
   2622 			break;
   2623 		}
   2624 		return;
   2625 	}
   2626 
   2627 	memset(&bv, 0, sizeof(bv));
   2628 	bv.bv_volid = edata->sensor - 1;
   2629 	KERNEL_LOCK(1, curlwp);
   2630 	s = splbio();
   2631 	error = mfi_ioctl_vol(sc, &bv);
   2632 	splx(s);
   2633 	KERNEL_UNLOCK_ONE(curlwp);
   2634 	if (error)
   2635 		bv.bv_status = BIOC_SVINVALID;
   2636 
   2637 	bio_vol_to_envsys(edata, &bv);
   2638 }
   2639 
   2640 #endif /* NBIO > 0 */
   2641 
   2642 static uint32_t
   2643 mfi_xscale_fw_state(struct mfi_softc *sc)
   2644 {
   2645 	return mfi_read(sc, MFI_OMSG0);
   2646 }
   2647 
   2648 static void
   2649 mfi_xscale_intr_dis(struct mfi_softc *sc)
   2650 {
   2651 	mfi_write(sc, MFI_OMSK, 0);
   2652 }
   2653 
   2654 static void
   2655 mfi_xscale_intr_ena(struct mfi_softc *sc)
   2656 {
   2657 	mfi_write(sc, MFI_OMSK, MFI_ENABLE_INTR);
   2658 }
   2659 
   2660 static int
   2661 mfi_xscale_intr(struct mfi_softc *sc)
   2662 {
   2663 	uint32_t status;
   2664 
   2665 	status = mfi_read(sc, MFI_OSTS);
   2666 	if (!ISSET(status, MFI_OSTS_INTR_VALID))
   2667 		return 0;
   2668 
   2669 	/* write status back to acknowledge interrupt */
   2670 	mfi_write(sc, MFI_OSTS, status);
   2671 	return 1;
   2672 }
   2673 
   2674 static void
   2675 mfi_xscale_post(struct mfi_softc *sc, struct mfi_ccb *ccb)
   2676 {
   2677 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_frames),
   2678 	    ccb->ccb_pframe - MFIMEM_DVA(sc->sc_frames),
   2679 	    sc->sc_frames_size, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   2680 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_sense),
   2681 	    ccb->ccb_psense - MFIMEM_DVA(sc->sc_sense),
   2682 	    MFI_SENSE_SIZE, BUS_DMASYNC_PREREAD);
   2683 
   2684 	mfi_write(sc, MFI_IQP, (ccb->ccb_pframe >> 3) |
   2685 	    ccb->ccb_extra_frames);
   2686 	ccb->ccb_state = MFI_CCB_RUNNING;
   2687 }
   2688 
   2689 static uint32_t
   2690 mfi_ppc_fw_state(struct mfi_softc *sc)
   2691 {
   2692 	return mfi_read(sc, MFI_OSP);
   2693 }
   2694 
   2695 static void
   2696 mfi_ppc_intr_dis(struct mfi_softc *sc)
   2697 {
   2698 	/* Taking a wild guess --dyoung */
   2699 	mfi_write(sc, MFI_OMSK, ~(uint32_t)0x0);
   2700 	mfi_write(sc, MFI_ODC, 0xffffffff);
   2701 }
   2702 
   2703 static void
   2704 mfi_ppc_intr_ena(struct mfi_softc *sc)
   2705 {
   2706 	mfi_write(sc, MFI_ODC, 0xffffffff);
   2707 	mfi_write(sc, MFI_OMSK, ~0x80000004);
   2708 }
   2709 
   2710 static int
   2711 mfi_ppc_intr(struct mfi_softc *sc)
   2712 {
   2713 	uint32_t status;
   2714 
   2715 	status = mfi_read(sc, MFI_OSTS);
   2716 	if (!ISSET(status, MFI_OSTS_PPC_INTR_VALID))
   2717 		return 0;
   2718 
   2719 	/* write status back to acknowledge interrupt */
   2720 	mfi_write(sc, MFI_ODC, status);
   2721 	return 1;
   2722 }
   2723 
   2724 static void
   2725 mfi_ppc_post(struct mfi_softc *sc, struct mfi_ccb *ccb)
   2726 {
   2727 	mfi_write(sc, MFI_IQP, 0x1 | ccb->ccb_pframe |
   2728 	    (ccb->ccb_extra_frames << 1));
   2729 	ccb->ccb_state = MFI_CCB_RUNNING;
   2730 }
   2731 
   2732 u_int32_t
   2733 mfi_gen2_fw_state(struct mfi_softc *sc)
   2734 {
   2735 	return (mfi_read(sc, MFI_OSP));
   2736 }
   2737 
   2738 void
   2739 mfi_gen2_intr_dis(struct mfi_softc *sc)
   2740 {
   2741 	mfi_write(sc, MFI_OMSK, 0xffffffff);
   2742 	mfi_write(sc, MFI_ODC, 0xffffffff);
   2743 }
   2744 
   2745 void
   2746 mfi_gen2_intr_ena(struct mfi_softc *sc)
   2747 {
   2748 	mfi_write(sc, MFI_ODC, 0xffffffff);
   2749 	mfi_write(sc, MFI_OMSK, ~MFI_OSTS_GEN2_INTR_VALID);
   2750 }
   2751 
   2752 int
   2753 mfi_gen2_intr(struct mfi_softc *sc)
   2754 {
   2755 	u_int32_t status;
   2756 
   2757 	status = mfi_read(sc, MFI_OSTS);
   2758 	if (!ISSET(status, MFI_OSTS_GEN2_INTR_VALID))
   2759 		return (0);
   2760 
   2761 	/* write status back to acknowledge interrupt */
   2762 	mfi_write(sc, MFI_ODC, status);
   2763 
   2764 	return (1);
   2765 }
   2766 
   2767 void
   2768 mfi_gen2_post(struct mfi_softc *sc, struct mfi_ccb *ccb)
   2769 {
   2770 	mfi_write(sc, MFI_IQP, 0x1 | ccb->ccb_pframe |
   2771 	    (ccb->ccb_extra_frames << 1));
   2772 	ccb->ccb_state = MFI_CCB_RUNNING;
   2773 }
   2774 
   2775 u_int32_t
   2776 mfi_skinny_fw_state(struct mfi_softc *sc)
   2777 {
   2778 	return (mfi_read(sc, MFI_OSP));
   2779 }
   2780 
   2781 void
   2782 mfi_skinny_intr_dis(struct mfi_softc *sc)
   2783 {
   2784 	mfi_write(sc, MFI_OMSK, 0);
   2785 }
   2786 
   2787 void
   2788 mfi_skinny_intr_ena(struct mfi_softc *sc)
   2789 {
   2790 	mfi_write(sc, MFI_OMSK, ~0x00000001);
   2791 }
   2792 
   2793 int
   2794 mfi_skinny_intr(struct mfi_softc *sc)
   2795 {
   2796 	u_int32_t status;
   2797 
   2798 	status = mfi_read(sc, MFI_OSTS);
   2799 	if (!ISSET(status, MFI_OSTS_SKINNY_INTR_VALID))
   2800 		return (0);
   2801 
   2802 	/* write status back to acknowledge interrupt */
   2803 	mfi_write(sc, MFI_OSTS, status);
   2804 
   2805 	return (1);
   2806 }
   2807 
   2808 void
   2809 mfi_skinny_post(struct mfi_softc *sc, struct mfi_ccb *ccb)
   2810 {
   2811 	mfi_write(sc, MFI_IQPL, 0x1 | ccb->ccb_pframe |
   2812 	    (ccb->ccb_extra_frames << 1));
   2813 	mfi_write(sc, MFI_IQPH, 0x00000000);
   2814 	ccb->ccb_state = MFI_CCB_RUNNING;
   2815 }
   2816 
   2817 #define MFI_FUSION_ENABLE_INTERRUPT_MASK	(0x00000008)
   2818 
   2819 void
   2820 mfi_tbolt_intr_ena(struct mfi_softc *sc)
   2821 {
   2822 	mfi_write(sc, MFI_OMSK, ~MFI_FUSION_ENABLE_INTERRUPT_MASK);
   2823 	mfi_read(sc, MFI_OMSK);
   2824 }
   2825 
   2826 void
   2827 mfi_tbolt_intr_dis(struct mfi_softc *sc)
   2828 {
   2829 	mfi_write(sc, MFI_OMSK, 0xFFFFFFFF);
   2830 	mfi_read(sc, MFI_OMSK);
   2831 }
   2832 
   2833 int
   2834 mfi_tbolt_intr(struct mfi_softc *sc)
   2835 {
   2836 	int32_t status;
   2837 
   2838 	status = mfi_read(sc, MFI_OSTS);
   2839 
   2840 	if (ISSET(status, 0x1)) {
   2841 		mfi_write(sc, MFI_OSTS, status);
   2842 		mfi_read(sc, MFI_OSTS);
   2843 		if (ISSET(status, MFI_STATE_CHANGE_INTERRUPT))
   2844 			return 0;
   2845 		return 1;
   2846 	}
   2847 	if (!ISSET(status, MFI_FUSION_ENABLE_INTERRUPT_MASK))
   2848 		return 0;
   2849 	mfi_read(sc, MFI_OSTS);
   2850 	return 1;
   2851 }
   2852 
   2853 u_int32_t
   2854 mfi_tbolt_fw_state(struct mfi_softc *sc)
   2855 {
   2856 	return mfi_read(sc, MFI_OSP);
   2857 }
   2858 
   2859 void
   2860 mfi_tbolt_post(struct mfi_softc *sc, struct mfi_ccb *ccb)
   2861 {
   2862 	if (sc->sc_MFA_enabled) {
   2863 		if ((ccb->ccb_flags & MFI_CCB_F_TBOLT) == 0)
   2864 			mfi_tbolt_build_mpt_ccb(ccb);
   2865 		mfi_write(sc, MFI_IQPL,
   2866 		    ccb->ccb_tb_request_desc.words & 0xFFFFFFFF);
   2867 		mfi_write(sc, MFI_IQPH,
   2868 		    ccb->ccb_tb_request_desc.words >> 32);
   2869 		ccb->ccb_state = MFI_CCB_RUNNING;
   2870 		return;
   2871 	}
   2872 	uint64_t bus_add = ccb->ccb_pframe;
   2873 	bus_add |= (MFI_REQ_DESCRIPT_FLAGS_MFA
   2874 	    << MFI_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
   2875 	mfi_write(sc, MFI_IQPL, bus_add);
   2876 	mfi_write(sc, MFI_IQPH, bus_add >> 32);
   2877 	ccb->ccb_state = MFI_CCB_RUNNING;
   2878 }
   2879 
   2880 static void
   2881 mfi_tbolt_build_mpt_ccb(struct mfi_ccb *ccb)
   2882 {
   2883 	union mfi_mpi2_request_descriptor *req_desc = &ccb->ccb_tb_request_desc;
   2884 	struct mfi_mpi2_request_raid_scsi_io *io_req = ccb->ccb_tb_io_request;
   2885 	struct mpi25_ieee_sge_chain64 *mpi25_ieee_chain;
   2886 
   2887 	io_req->Function = MPI2_FUNCTION_PASSTHRU_IO_REQUEST;
   2888 	io_req->SGLOffset0 =
   2889 	    offsetof(struct mfi_mpi2_request_raid_scsi_io, SGL) / 4;
   2890 	io_req->ChainOffset =
   2891 	    offsetof(struct mfi_mpi2_request_raid_scsi_io, SGL) / 16;
   2892 
   2893 	mpi25_ieee_chain =
   2894 	    (struct mpi25_ieee_sge_chain64 *)&io_req->SGL.IeeeChain;
   2895 	mpi25_ieee_chain->Address = ccb->ccb_pframe;
   2896 
   2897 	/*
   2898 	  In MFI pass thru, nextChainOffset will always be zero to
   2899 	  indicate the end of the chain.
   2900 	*/
   2901 	mpi25_ieee_chain->Flags= MPI2_IEEE_SGE_FLAGS_CHAIN_ELEMENT
   2902 		| MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR;
   2903 
   2904 	/* setting the length to the maximum length */
   2905 	mpi25_ieee_chain->Length = 1024;
   2906 
   2907 	req_desc->header.RequestFlags = (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
   2908 	    MFI_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
   2909 	ccb->ccb_flags |= MFI_CCB_F_TBOLT;
   2910 	bus_dmamap_sync(ccb->ccb_sc->sc_dmat,
   2911 	    MFIMEM_MAP(ccb->ccb_sc->sc_tbolt_reqmsgpool),
   2912 	    ccb->ccb_tb_pio_request -
   2913 	     MFIMEM_DVA(ccb->ccb_sc->sc_tbolt_reqmsgpool),
   2914 	    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE,
   2915 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   2916 }
   2917 
   2918 /*
   2919  * Description:
   2920  *      This function will prepare message pools for the Thunderbolt controller
   2921  */
   2922 static int
   2923 mfi_tbolt_init_desc_pool(struct mfi_softc *sc)
   2924 {
   2925 	uint32_t     offset = 0;
   2926 	uint8_t      *addr = MFIMEM_KVA(sc->sc_tbolt_reqmsgpool);
   2927 
   2928 	/* Request Decriptors alignment restrictions */
   2929 	KASSERT(((uintptr_t)addr & 0xFF) == 0);
   2930 
   2931 	/* Skip request message pool */
   2932 	addr = &addr[MEGASAS_THUNDERBOLT_NEW_MSG_SIZE * (sc->sc_max_cmds + 1)];
   2933 
   2934 	/* Reply Frame Pool is initialized */
   2935 	sc->sc_reply_frame_pool = (struct mfi_mpi2_reply_header *) addr;
   2936 	KASSERT(((uintptr_t)addr & 0xFF) == 0);
   2937 
   2938 	offset = (uintptr_t)sc->sc_reply_frame_pool
   2939 	    - (uintptr_t)MFIMEM_KVA(sc->sc_tbolt_reqmsgpool);
   2940 	sc->sc_reply_frame_busaddr =
   2941 	    MFIMEM_DVA(sc->sc_tbolt_reqmsgpool) + offset;
   2942 
   2943 	/* initializing reply address to 0xFFFFFFFF */
   2944 	memset((uint8_t *)sc->sc_reply_frame_pool, 0xFF,
   2945 	       (MEGASAS_THUNDERBOLT_REPLY_SIZE * sc->sc_reply_pool_size));
   2946 
   2947 	/* Skip Reply Frame Pool */
   2948 	addr += MEGASAS_THUNDERBOLT_REPLY_SIZE * sc->sc_reply_pool_size;
   2949 	sc->sc_reply_pool_limit = (void *)addr;
   2950 
   2951 	offset = MEGASAS_THUNDERBOLT_REPLY_SIZE * sc->sc_reply_pool_size;
   2952 	sc->sc_sg_frame_busaddr = sc->sc_reply_frame_busaddr + offset;
   2953 
   2954 	/* initialize the last_reply_idx to 0 */
   2955 	sc->sc_last_reply_idx = 0;
   2956 	offset = (sc->sc_sg_frame_busaddr + (MEGASAS_MAX_SZ_CHAIN_FRAME *
   2957 	    sc->sc_max_cmds)) - MFIMEM_DVA(sc->sc_tbolt_reqmsgpool);
   2958 	KASSERT(offset <= sc->sc_tbolt_reqmsgpool->am_size);
   2959 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_tbolt_reqmsgpool), 0,
   2960 	    MFIMEM_MAP(sc->sc_tbolt_reqmsgpool)->dm_mapsize,
   2961 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   2962 	return 0;
   2963 }
   2964 
   2965 /*
   2966  * This routine prepare and issue INIT2 frame to the Firmware
   2967  */
   2968 
   2969 static int
   2970 mfi_tbolt_init_MFI_queue(struct mfi_softc *sc)
   2971 {
   2972 	struct mpi2_ioc_init_request   *mpi2IocInit;
   2973 	struct mfi_init_frame		*mfi_init;
   2974 	struct mfi_ccb			*ccb;
   2975 	bus_addr_t			phyAddress;
   2976 	mfi_address			*mfiAddressTemp;
   2977 	int				s;
   2978 	char				*verbuf;
   2979 	char				wqbuf[10];
   2980 
   2981 	/* Check if initialization is already completed */
   2982 	if (sc->sc_MFA_enabled) {
   2983 		return 1;
   2984 	}
   2985 
   2986 	mpi2IocInit =
   2987 	    (struct mpi2_ioc_init_request *)MFIMEM_KVA(sc->sc_tbolt_ioc_init);
   2988 
   2989 	s = splbio();
   2990 	if ((ccb = mfi_get_ccb(sc)) == NULL) {
   2991 		splx(s);
   2992 		return (EBUSY);
   2993 	}
   2994 
   2995 
   2996 	mfi_init = &ccb->ccb_frame->mfr_init;
   2997 
   2998 	memset(mpi2IocInit, 0, sizeof(struct mpi2_ioc_init_request));
   2999 	mpi2IocInit->Function  = MPI2_FUNCTION_IOC_INIT;
   3000 	mpi2IocInit->WhoInit   = MPI2_WHOINIT_HOST_DRIVER;
   3001 
   3002 	/* set MsgVersion and HeaderVersion host driver was built with */
   3003 	mpi2IocInit->MsgVersion = MPI2_VERSION;
   3004 	mpi2IocInit->HeaderVersion = MPI2_HEADER_VERSION;
   3005 	mpi2IocInit->SystemRequestFrameSize = MEGASAS_THUNDERBOLT_NEW_MSG_SIZE/4;
   3006 	mpi2IocInit->ReplyDescriptorPostQueueDepth =
   3007 	    (uint16_t)sc->sc_reply_pool_size;
   3008 	mpi2IocInit->ReplyFreeQueueDepth = 0; /* Not supported by MR. */
   3009 
   3010 	/* Get physical address of reply frame pool */
   3011 	phyAddress = sc->sc_reply_frame_busaddr;
   3012 	mfiAddressTemp =
   3013 	    (mfi_address *)&mpi2IocInit->ReplyDescriptorPostQueueAddress;
   3014 	mfiAddressTemp->u.addressLow = (uint32_t)phyAddress;
   3015 	mfiAddressTemp->u.addressHigh = (uint32_t)((uint64_t)phyAddress >> 32);
   3016 
   3017 	/* Get physical address of request message pool */
   3018 	phyAddress =  MFIMEM_DVA(sc->sc_tbolt_reqmsgpool);
   3019 	mfiAddressTemp = (mfi_address *)&mpi2IocInit->SystemRequestFrameBaseAddress;
   3020 	mfiAddressTemp->u.addressLow = (uint32_t)phyAddress;
   3021 	mfiAddressTemp->u.addressHigh = (uint32_t)((uint64_t)phyAddress >> 32);
   3022 
   3023 	mpi2IocInit->ReplyFreeQueueAddress =  0; /* Not supported by MR. */
   3024 	mpi2IocInit->TimeStamp = time_uptime;
   3025 
   3026 	verbuf = MFIMEM_KVA(sc->sc_tbolt_verbuf);
   3027 	snprintf(verbuf, strlen(MEGASAS_VERSION) + 2, "%s\n",
   3028                 MEGASAS_VERSION);
   3029 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_tbolt_verbuf), 0,
   3030 	    MFIMEM_MAP(sc->sc_tbolt_verbuf)->dm_mapsize, BUS_DMASYNC_PREWRITE);
   3031 	mfi_init->driver_ver_lo = htole32(MFIMEM_DVA(sc->sc_tbolt_verbuf));
   3032 	mfi_init->driver_ver_hi =
   3033 		    htole32((uint64_t)MFIMEM_DVA(sc->sc_tbolt_verbuf) >> 32);
   3034 
   3035 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_tbolt_ioc_init), 0,
   3036 	    MFIMEM_MAP(sc->sc_tbolt_ioc_init)->dm_mapsize,
   3037 	    BUS_DMASYNC_PREWRITE);
   3038 	/* Get the physical address of the mpi2 ioc init command */
   3039 	phyAddress =  MFIMEM_DVA(sc->sc_tbolt_ioc_init);
   3040 	mfi_init->mif_qinfo_new_addr_lo = htole32(phyAddress);
   3041 	mfi_init->mif_qinfo_new_addr_hi = htole32((uint64_t)phyAddress >> 32);
   3042 
   3043 	mfi_init->mif_header.mfh_cmd = MFI_CMD_INIT;
   3044 	mfi_init->mif_header.mfh_data_len = sizeof(struct mpi2_ioc_init_request);
   3045 	if (mfi_poll(ccb) != 0) {
   3046 		aprint_error_dev(sc->sc_dev, "failed to send IOC init2 "
   3047 		    "command at 0x%" PRIx64 "\n",
   3048 		    (uint64_t)ccb->ccb_pframe);
   3049 		splx(s);
   3050 		return 1;
   3051 	}
   3052 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_tbolt_verbuf), 0,
   3053 	    MFIMEM_MAP(sc->sc_tbolt_verbuf)->dm_mapsize, BUS_DMASYNC_POSTWRITE);
   3054 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_tbolt_ioc_init), 0,
   3055 	    MFIMEM_MAP(sc->sc_tbolt_ioc_init)->dm_mapsize,
   3056 	    BUS_DMASYNC_POSTWRITE);
   3057 	mfi_put_ccb(ccb);
   3058 	splx(s);
   3059 
   3060 	if (mfi_init->mif_header.mfh_cmd_status == 0) {
   3061 		sc->sc_MFA_enabled = 1;
   3062 	}
   3063 	else {
   3064 		aprint_error_dev(sc->sc_dev, "Init command Failed %x\n",
   3065 		    mfi_init->mif_header.mfh_cmd_status);
   3066 		return 1;
   3067 	}
   3068 
   3069 	snprintf(wqbuf, sizeof(wqbuf), "%swq", DEVNAME(sc));
   3070 	if (workqueue_create(&sc->sc_ldsync_wq, wqbuf, mfi_tbolt_sync_map_info,
   3071 	    sc, PRIBIO, IPL_BIO, 0) != 0) {
   3072 		aprint_error_dev(sc->sc_dev, "workqueue_create failed\n");
   3073 		return 1;
   3074 	}
   3075 	workqueue_enqueue(sc->sc_ldsync_wq, &sc->sc_ldsync_wk, NULL);
   3076 	return 0;
   3077 }
   3078 
   3079 int
   3080 mfi_tbolt_intrh(void *arg)
   3081 {
   3082 	struct mfi_softc	*sc = arg;
   3083 	struct mfi_ccb		*ccb;
   3084 	union mfi_mpi2_reply_descriptor *desc;
   3085 	int smid, num_completed;
   3086 
   3087 	if (!mfi_tbolt_intr(sc))
   3088 		return 0;
   3089 
   3090 	DNPRINTF(MFI_D_INTR, "%s: mfi_tbolt_intrh %#lx %#lx\n", DEVNAME(sc),
   3091 	    (u_long)sc, (u_long)sc->sc_last_reply_idx);
   3092 
   3093 	KASSERT(sc->sc_last_reply_idx < sc->sc_reply_pool_size);
   3094 
   3095 	desc = (union mfi_mpi2_reply_descriptor *)
   3096 	    ((uintptr_t)sc->sc_reply_frame_pool +
   3097 	     sc->sc_last_reply_idx * MEGASAS_THUNDERBOLT_REPLY_SIZE);
   3098 
   3099 	bus_dmamap_sync(sc->sc_dmat,
   3100 	    MFIMEM_MAP(sc->sc_tbolt_reqmsgpool),
   3101 	    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE * (sc->sc_max_cmds + 1),
   3102 	    MEGASAS_THUNDERBOLT_REPLY_SIZE * sc->sc_reply_pool_size,
   3103 	    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
   3104 	num_completed = 0;
   3105 	while ((desc->header.ReplyFlags & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK) !=
   3106 	    MPI2_RPY_DESCRIPT_FLAGS_UNUSED) {
   3107 		smid = desc->header.SMID;
   3108 		KASSERT(smid > 0 && smid <= sc->sc_max_cmds);
   3109 		ccb = &sc->sc_ccb[smid - 1];
   3110 		DNPRINTF(MFI_D_INTR,
   3111 		    "%s: mfi_tbolt_intr SMID %#x reply_idx %#x "
   3112 		    "desc %#" PRIx64 " ccb %p\n", DEVNAME(sc), smid,
   3113 		    sc->sc_last_reply_idx, desc->words, ccb);
   3114 		KASSERT(ccb->ccb_state == MFI_CCB_RUNNING);
   3115 		if (ccb->ccb_flags & MFI_CCB_F_TBOLT_IO &&
   3116 		    ccb->ccb_tb_io_request->ChainOffset != 0) {
   3117 			bus_dmamap_sync(sc->sc_dmat,
   3118 			    MFIMEM_MAP(sc->sc_tbolt_reqmsgpool),
   3119 			    ccb->ccb_tb_psg_frame -
   3120 				MFIMEM_DVA(sc->sc_tbolt_reqmsgpool),
   3121 			    MEGASAS_MAX_SZ_CHAIN_FRAME,  BUS_DMASYNC_POSTREAD);
   3122 		}
   3123 		if (ccb->ccb_flags & MFI_CCB_F_TBOLT_IO) {
   3124 			bus_dmamap_sync(sc->sc_dmat,
   3125 			    MFIMEM_MAP(sc->sc_tbolt_reqmsgpool),
   3126 			    ccb->ccb_tb_pio_request -
   3127 				MFIMEM_DVA(sc->sc_tbolt_reqmsgpool),
   3128 			    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE,
   3129 			    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
   3130 		}
   3131 		if (ccb->ccb_done)
   3132 			ccb->ccb_done(ccb);
   3133 		else
   3134 			ccb->ccb_state = MFI_CCB_DONE;
   3135 		sc->sc_last_reply_idx++;
   3136 		if (sc->sc_last_reply_idx >= sc->sc_reply_pool_size) {
   3137 			sc->sc_last_reply_idx = 0;
   3138 		}
   3139 		desc->words = ~0x0;
   3140 		/* Get the next reply descriptor */
   3141 		desc = (union mfi_mpi2_reply_descriptor *)
   3142 		    ((uintptr_t)sc->sc_reply_frame_pool +
   3143 		     sc->sc_last_reply_idx * MEGASAS_THUNDERBOLT_REPLY_SIZE);
   3144 		num_completed++;
   3145 	}
   3146 	if (num_completed == 0)
   3147 		return 0;
   3148 
   3149 	bus_dmamap_sync(sc->sc_dmat,
   3150 	    MFIMEM_MAP(sc->sc_tbolt_reqmsgpool),
   3151 	    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE * (sc->sc_max_cmds + 1),
   3152 	    MEGASAS_THUNDERBOLT_REPLY_SIZE * sc->sc_reply_pool_size,
   3153 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   3154 	mfi_write(sc, MFI_RPI, sc->sc_last_reply_idx);
   3155 	return 1;
   3156 }
   3157 
   3158 
   3159 int
   3160 mfi_tbolt_scsi_ld_io(struct mfi_ccb *ccb, struct scsipi_xfer *xs,
   3161     uint64_t blockno, uint32_t blockcnt)
   3162 {
   3163 	struct scsipi_periph *periph = xs->xs_periph;
   3164 	struct mfi_mpi2_request_raid_scsi_io    *io_req;
   3165 	int sge_count;
   3166 
   3167 	DNPRINTF(MFI_D_CMD, "%s: mfi_tbolt_scsi_ld_io: %d\n",
   3168 	    device_xname(periph->periph_channel->chan_adapter->adapt_dev),
   3169 	    periph->periph_target);
   3170 
   3171 	if (!xs->data)
   3172 		return 1;
   3173 
   3174 	ccb->ccb_done = mfi_tbolt_scsi_ld_done;
   3175 	ccb->ccb_xs = xs;
   3176 	ccb->ccb_data = xs->data;
   3177 	ccb->ccb_len = xs->datalen;
   3178 
   3179 	io_req = ccb->ccb_tb_io_request;
   3180 
   3181 	/* Just the CDB length,rest of the Flags are zero */
   3182 	io_req->IoFlags = xs->cmdlen;
   3183 	memset(io_req->CDB.CDB32, 0, 32);
   3184 	memcpy(io_req->CDB.CDB32, &xs->cmdstore, xs->cmdlen);
   3185 
   3186 	io_req->RaidContext.TargetID = periph->periph_target;
   3187 	io_req->RaidContext.Status = 0;
   3188 	io_req->RaidContext.exStatus = 0;
   3189 	io_req->RaidContext.timeoutValue = MFI_FUSION_FP_DEFAULT_TIMEOUT;
   3190 	io_req->Function = MPI2_FUNCTION_LD_IO_REQUEST;
   3191 	io_req->DevHandle = periph->periph_target;
   3192 
   3193 	ccb->ccb_tb_request_desc.header.RequestFlags =
   3194 	    (MFI_REQ_DESCRIPT_FLAGS_LD_IO << MFI_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
   3195 	io_req->DataLength = blockcnt * MFI_SECTOR_LEN;
   3196 
   3197 	if (xs->xs_control & XS_CTL_DATA_IN) {
   3198 		io_req->Control = MPI2_SCSIIO_CONTROL_READ;
   3199 		ccb->ccb_direction = MFI_DATA_IN;
   3200 	} else {
   3201 		io_req->Control = MPI2_SCSIIO_CONTROL_WRITE;
   3202 		ccb->ccb_direction = MFI_DATA_OUT;
   3203 	}
   3204 
   3205 	sge_count = mfi_tbolt_create_sgl(ccb,
   3206 	    (xs->xs_control & XS_CTL_NOSLEEP) ? BUS_DMA_NOWAIT : BUS_DMA_WAITOK
   3207 	    );
   3208 	if (sge_count < 0)
   3209 		return 1;
   3210 	KASSERT(sge_count <= ccb->ccb_sc->sc_max_sgl);
   3211 	io_req->RaidContext.numSGE = sge_count;
   3212 	io_req->SGLFlags = MPI2_SGE_FLAGS_64_BIT_ADDRESSING;
   3213 	io_req->SGLOffset0 =
   3214 	    offsetof(struct mfi_mpi2_request_raid_scsi_io, SGL) / 4;
   3215 
   3216 	io_req->SenseBufferLowAddress = htole32(ccb->ccb_psense);
   3217 	io_req->SenseBufferLength = MFI_SENSE_SIZE;
   3218 
   3219 	ccb->ccb_flags |= MFI_CCB_F_TBOLT | MFI_CCB_F_TBOLT_IO;
   3220 	bus_dmamap_sync(ccb->ccb_sc->sc_dmat,
   3221 	    MFIMEM_MAP(ccb->ccb_sc->sc_tbolt_reqmsgpool),
   3222 	    ccb->ccb_tb_pio_request -
   3223 	     MFIMEM_DVA(ccb->ccb_sc->sc_tbolt_reqmsgpool),
   3224 	    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE,
   3225 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   3226 
   3227 	return 0;
   3228 }
   3229 
   3230 
   3231 static void
   3232 mfi_tbolt_scsi_ld_done(struct mfi_ccb *ccb)
   3233 {
   3234 	struct mfi_mpi2_request_raid_scsi_io *io_req = ccb->ccb_tb_io_request;
   3235 	mfi_scsi_xs_done(ccb, io_req->RaidContext.Status,
   3236 	    io_req->RaidContext.exStatus);
   3237 }
   3238 
   3239 static int
   3240 mfi_tbolt_create_sgl(struct mfi_ccb *ccb, int flags)
   3241 {
   3242 	struct mfi_softc	*sc = ccb->ccb_sc;
   3243 	bus_dma_segment_t	*sgd;
   3244 	int			error, i, sge_idx, sge_count;
   3245 	struct mfi_mpi2_request_raid_scsi_io *io_req;
   3246 	struct mpi25_ieee_sge_chain64 *sgl_ptr;
   3247 
   3248 	DNPRINTF(MFI_D_DMA, "%s: mfi_tbolt_create_sgl %#lx\n", DEVNAME(sc),
   3249 	    (u_long)ccb->ccb_data);
   3250 
   3251 	if (!ccb->ccb_data)
   3252 		return -1;
   3253 
   3254 	KASSERT(flags == BUS_DMA_NOWAIT || !cpu_intr_p());
   3255 	error = bus_dmamap_load(sc->sc_datadmat, ccb->ccb_dmamap,
   3256 	    ccb->ccb_data, ccb->ccb_len, NULL, flags);
   3257 	if (error) {
   3258 		if (error == EFBIG)
   3259 			aprint_error_dev(sc->sc_dev, "more than %d dma segs\n",
   3260 			    sc->sc_max_sgl);
   3261 		else
   3262 			aprint_error_dev(sc->sc_dev,
   3263 			    "error %d loading dma map\n", error);
   3264 		return -1;
   3265 	}
   3266 
   3267 	io_req = ccb->ccb_tb_io_request;
   3268 	sgl_ptr = &io_req->SGL.IeeeChain.Chain64;
   3269 	sge_count = ccb->ccb_dmamap->dm_nsegs;
   3270 	sgd = ccb->ccb_dmamap->dm_segs;
   3271 	KASSERT(sge_count <= sc->sc_max_sgl);
   3272 	KASSERT(sge_count <=
   3273 	    (MEGASAS_THUNDERBOLT_MAX_SGE_IN_MAINMSG - 1 +
   3274 	     MEGASAS_THUNDERBOLT_MAX_SGE_IN_CHAINMSG));
   3275 
   3276 	if (sge_count > MEGASAS_THUNDERBOLT_MAX_SGE_IN_MAINMSG) {
   3277 		/* One element to store the chain info */
   3278 		sge_idx = MEGASAS_THUNDERBOLT_MAX_SGE_IN_MAINMSG - 1;
   3279 		DNPRINTF(MFI_D_DMA,
   3280 		    "mfi sge_idx %d sge_count %d io_req paddr 0x%" PRIx64 "\n",
   3281 		    sge_idx, sge_count, ccb->ccb_tb_pio_request);
   3282 	} else {
   3283 		sge_idx = sge_count;
   3284 	}
   3285 
   3286 	for (i = 0; i < sge_idx; i++) {
   3287 		sgl_ptr->Address = htole64(sgd[i].ds_addr);
   3288 		sgl_ptr->Length = htole32(sgd[i].ds_len);
   3289 		sgl_ptr->Flags = 0;
   3290 		if (sge_idx < sge_count) {
   3291 			DNPRINTF(MFI_D_DMA,
   3292 			    "sgl %p %d 0x%" PRIx64 " len 0x%" PRIx32
   3293 			    " flags 0x%x\n", sgl_ptr, i,
   3294 			    sgl_ptr->Address, sgl_ptr->Length,
   3295 			    sgl_ptr->Flags);
   3296 		}
   3297 		sgl_ptr++;
   3298 	}
   3299 	io_req->ChainOffset = 0;
   3300 	if (sge_idx < sge_count) {
   3301 		struct mpi25_ieee_sge_chain64 *sg_chain;
   3302 		io_req->ChainOffset = MEGASAS_THUNDERBOLT_CHAIN_OFF_MAINMSG;
   3303 		sg_chain = sgl_ptr;
   3304 		/* Prepare chain element */
   3305 		sg_chain->NextChainOffset = 0;
   3306 		sg_chain->Flags = (MPI2_IEEE_SGE_FLAGS_CHAIN_ELEMENT |
   3307 		    MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR);
   3308 		sg_chain->Length =  (sizeof(mpi2_sge_io_union) *
   3309 		    (sge_count - sge_idx));
   3310 		sg_chain->Address = ccb->ccb_tb_psg_frame;
   3311 		DNPRINTF(MFI_D_DMA,
   3312 		    "sgl %p chain 0x%" PRIx64 " len 0x%" PRIx32
   3313 		    " flags 0x%x\n", sg_chain, sg_chain->Address,
   3314 		    sg_chain->Length, sg_chain->Flags);
   3315 		sgl_ptr = &ccb->ccb_tb_sg_frame->IeeeChain.Chain64;
   3316 		for (; i < sge_count; i++) {
   3317 			sgl_ptr->Address = htole64(sgd[i].ds_addr);
   3318 			sgl_ptr->Length = htole32(sgd[i].ds_len);
   3319 			sgl_ptr->Flags = 0;
   3320 			DNPRINTF(MFI_D_DMA,
   3321 			    "sgl %p %d 0x%" PRIx64 " len 0x%" PRIx32
   3322 			    " flags 0x%x\n", sgl_ptr, i, sgl_ptr->Address,
   3323 			    sgl_ptr->Length, sgl_ptr->Flags);
   3324 			sgl_ptr++;
   3325 		}
   3326 		bus_dmamap_sync(sc->sc_dmat,
   3327 		    MFIMEM_MAP(sc->sc_tbolt_reqmsgpool),
   3328 		    ccb->ccb_tb_psg_frame - MFIMEM_DVA(sc->sc_tbolt_reqmsgpool),
   3329 		    MEGASAS_MAX_SZ_CHAIN_FRAME,  BUS_DMASYNC_PREREAD);
   3330 	}
   3331 
   3332 	if (ccb->ccb_direction == MFI_DATA_IN) {
   3333 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   3334 		    ccb->ccb_dmamap->dm_mapsize, BUS_DMASYNC_PREREAD);
   3335 	} else {
   3336 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   3337 		    ccb->ccb_dmamap->dm_mapsize, BUS_DMASYNC_PREWRITE);
   3338 	}
   3339 	return sge_count;
   3340 }
   3341 
   3342 /*
   3343  * The ThunderBolt HW has an option for the driver to directly
   3344  * access the underlying disks and operate on the RAID.  To
   3345  * do this there needs to be a capability to keep the RAID controller
   3346  * and driver in sync.  The FreeBSD driver does not take advantage
   3347  * of this feature since it adds a lot of complexity and slows down
   3348  * performance.  Performance is gained by using the controller's
   3349  * cache etc.
   3350  *
   3351  * Even though this driver doesn't access the disks directly, an
   3352  * AEN like command is used to inform the RAID firmware to "sync"
   3353  * with all LD's via the MFI_DCMD_LD_MAP_GET_INFO command.  This
   3354  * command in write mode will return when the RAID firmware has
   3355  * detected a change to the RAID state.  Examples of this type
   3356  * of change are removing a disk.  Once the command returns then
   3357  * the driver needs to acknowledge this and "sync" all LD's again.
   3358  * This repeats until we shutdown.  Then we need to cancel this
   3359  * pending command.
   3360  *
   3361  * If this is not done right the RAID firmware will not remove a
   3362  * pulled drive and the RAID won't go degraded etc.  Effectively,
   3363  * stopping any RAID mangement to functions.
   3364  *
   3365  * Doing another LD sync, requires the use of an event since the
   3366  * driver needs to do a mfi_wait_command and can't do that in an
   3367  * interrupt thread.
   3368  *
   3369  * The driver could get the RAID state via the MFI_DCMD_LD_MAP_GET_INFO
   3370  * That requires a bunch of structure and it is simplier to just do
   3371  * the MFI_DCMD_LD_GET_LIST versus walking the RAID map.
   3372  */
   3373 
   3374 void
   3375 mfi_tbolt_sync_map_info(struct work *w, void *v)
   3376 {
   3377 	struct mfi_softc *sc = v;
   3378 	int i;
   3379 	struct mfi_ccb *ccb = NULL;
   3380 	uint8_t mbox[MFI_MBOX_SIZE];
   3381 	struct mfi_ld *ld_sync = NULL;
   3382 	size_t ld_size;
   3383 	int s;
   3384 
   3385 	DNPRINTF(MFI_D_SYNC, "%s: mfi_tbolt_sync_map_info\n", DEVNAME(sc));
   3386 again:
   3387 	s = splbio();
   3388 	if (sc->sc_ldsync_ccb != NULL) {
   3389 		splx(s);
   3390 		return;
   3391 	}
   3392 
   3393 	if (mfi_mgmt_internal(sc, MR_DCMD_LD_GET_LIST, MFI_DATA_IN,
   3394 	    sizeof(sc->sc_ld_list), &sc->sc_ld_list, NULL, false)) {
   3395 		aprint_error_dev(sc->sc_dev, "MR_DCMD_LD_GET_LIST failed\n");
   3396 		goto err;
   3397 	}
   3398 
   3399 	ld_size = sizeof(*ld_sync) * sc->sc_ld_list.mll_no_ld;
   3400 
   3401 	ld_sync = malloc(ld_size, M_DEVBUF, M_WAITOK | M_ZERO);
   3402 	if (ld_sync == NULL) {
   3403 		aprint_error_dev(sc->sc_dev, "Failed to allocate sync\n");
   3404 		goto err;
   3405 	}
   3406 	for (i = 0; i < sc->sc_ld_list.mll_no_ld; i++) {
   3407 		ld_sync[i] = sc->sc_ld_list.mll_list[i].mll_ld;
   3408 	}
   3409 
   3410 	if ((ccb = mfi_get_ccb(sc)) == NULL) {
   3411 		aprint_error_dev(sc->sc_dev, "Failed to get sync command\n");
   3412 		goto err;
   3413 	}
   3414 	sc->sc_ldsync_ccb = ccb;
   3415 
   3416 	memset(mbox, 0, MFI_MBOX_SIZE);
   3417 	mbox[0] = sc->sc_ld_list.mll_no_ld;
   3418 	mbox[1] = MFI_DCMD_MBOX_PEND_FLAG;
   3419 	if (mfi_mgmt(ccb, NULL, MR_DCMD_LD_MAP_GET_INFO, MFI_DATA_OUT,
   3420 	    ld_size, ld_sync, mbox)) {
   3421 		aprint_error_dev(sc->sc_dev, "Failed to create sync command\n");
   3422 		goto err;
   3423 	}
   3424 	/*
   3425 	 * we won't sleep on this command, so we have to override
   3426 	 * the callback set up by mfi_mgmt()
   3427 	 */
   3428 	ccb->ccb_done = mfi_sync_map_complete;
   3429 
   3430 	mfi_post(sc, ccb);
   3431 	splx(s);
   3432 	return;
   3433 
   3434 err:
   3435 	if (ld_sync)
   3436 		free(ld_sync, M_DEVBUF);
   3437 	if (ccb)
   3438 		mfi_put_ccb(ccb);
   3439 	sc->sc_ldsync_ccb = NULL;
   3440 	splx(s);
   3441 	kpause("ldsyncp", 0, hz, NULL);
   3442 	goto again;
   3443 }
   3444 
   3445 static void
   3446 mfi_sync_map_complete(struct mfi_ccb *ccb)
   3447 {
   3448 	struct mfi_softc *sc = ccb->ccb_sc;
   3449 	bool aborted = !sc->sc_running;
   3450 
   3451 	DNPRINTF(MFI_D_SYNC, "%s: mfi_sync_map_complete\n",
   3452 	    DEVNAME(ccb->ccb_sc));
   3453 	KASSERT(sc->sc_ldsync_ccb == ccb);
   3454 	mfi_mgmt_done(ccb);
   3455 	free(ccb->ccb_data, M_DEVBUF);
   3456 	if (ccb->ccb_flags & MFI_CCB_F_ERR) {
   3457 		aprint_error_dev(sc->sc_dev, "sync command failed\n");
   3458 		aborted = true;
   3459 	}
   3460 	mfi_put_ccb(ccb);
   3461 	sc->sc_ldsync_ccb = NULL;
   3462 
   3463 	/* set it up again so the driver can catch more events */
   3464 	if (!aborted) {
   3465 		workqueue_enqueue(sc->sc_ldsync_wq, &sc->sc_ldsync_wk, NULL);
   3466 	}
   3467 }
   3468 
   3469 static int
   3470 mfifopen(dev_t dev, int flag, int mode, struct lwp *l)
   3471 {
   3472 	struct mfi_softc *sc;
   3473 
   3474 	if ((sc = device_lookup_private(&mfi_cd, minor(dev))) == NULL)
   3475 		return (ENXIO);
   3476 	return (0);
   3477 }
   3478 
   3479 static int
   3480 mfifclose(dev_t dev, int flag, int mode, struct lwp *l)
   3481 {
   3482 	return (0);
   3483 }
   3484 
   3485 static int
   3486 mfifioctl(dev_t dev, u_long cmd, void *data, int flag,
   3487     struct lwp *l)
   3488 {
   3489 	struct mfi_softc *sc;
   3490 	struct mfi_ioc_packet *ioc = data;
   3491 	uint8_t *udata;
   3492 	struct mfi_ccb *ccb = NULL;
   3493 	int ctx, i, s, error;
   3494 	union mfi_sense_ptr sense_ptr;
   3495 
   3496 	switch(cmd) {
   3497 	case MFI_CMD:
   3498 		sc = device_lookup_private(&mfi_cd, ioc->mfi_adapter_no);
   3499 		break;
   3500 	default:
   3501 		return ENOTTY;
   3502 	}
   3503 	if (sc == NULL)
   3504 		return (ENXIO);
   3505 	if (sc->sc_opened)
   3506 		return (EBUSY);
   3507 
   3508 	switch(cmd) {
   3509 	case MFI_CMD:
   3510 		error = kauth_authorize_device_passthru(l->l_cred, dev,
   3511 		    KAUTH_REQ_DEVICE_RAWIO_PASSTHRU_ALL, data);
   3512 		if (error)
   3513 			return error;
   3514 		if (ioc->mfi_sge_count > MAX_IOCTL_SGE)
   3515 			return EINVAL;
   3516 		s = splbio();
   3517 		if ((ccb = mfi_get_ccb(sc)) == NULL)
   3518 			return ENOMEM;
   3519 		ccb->ccb_data = NULL;
   3520 		ctx = ccb->ccb_frame->mfr_header.mfh_context;
   3521 		memcpy(ccb->ccb_frame, ioc->mfi_frame.raw,
   3522 		   sizeof(*ccb->ccb_frame));
   3523 		ccb->ccb_frame->mfr_header.mfh_context = ctx;
   3524 		ccb->ccb_frame->mfr_header.mfh_scsi_status = 0;
   3525 		ccb->ccb_frame->mfr_header.mfh_pad0 = 0;
   3526 		ccb->ccb_frame_size =
   3527 		    (sizeof(union mfi_sgl) * ioc->mfi_sge_count) +
   3528 		    ioc->mfi_sgl_off;
   3529 		if (ioc->mfi_sge_count > 0) {
   3530 			ccb->ccb_sgl = (union mfi_sgl *)
   3531 			    &ccb->ccb_frame->mfr_bytes[ioc->mfi_sgl_off];
   3532 		}
   3533 		if (ccb->ccb_frame->mfr_header.mfh_flags & MFI_FRAME_DIR_READ)
   3534 			ccb->ccb_direction = MFI_DATA_IN;
   3535 		if (ccb->ccb_frame->mfr_header.mfh_flags & MFI_FRAME_DIR_WRITE)
   3536 			ccb->ccb_direction = MFI_DATA_OUT;
   3537 		ccb->ccb_len = ccb->ccb_frame->mfr_header.mfh_data_len;
   3538 		if (ccb->ccb_len > MAXPHYS) {
   3539 			error = ENOMEM;
   3540 			goto out;
   3541 		}
   3542 		if (ccb->ccb_len &&
   3543 		    (ccb->ccb_direction & (MFI_DATA_IN | MFI_DATA_OUT)) != 0) {
   3544 			udata = malloc(ccb->ccb_len, M_DEVBUF, M_WAITOK|M_ZERO);
   3545 			if (udata == NULL) {
   3546 				error = ENOMEM;
   3547 				goto out;
   3548 			}
   3549 			ccb->ccb_data = udata;
   3550 			if (ccb->ccb_direction & MFI_DATA_OUT) {
   3551 				for (i = 0; i < ioc->mfi_sge_count; i++) {
   3552 					error = copyin(ioc->mfi_sgl[i].iov_base,
   3553 					    udata, ioc->mfi_sgl[i].iov_len);
   3554 					if (error)
   3555 						goto out;
   3556 					udata = &udata[
   3557 					    ioc->mfi_sgl[i].iov_len];
   3558 				}
   3559 			}
   3560 			if (mfi_create_sgl(ccb, BUS_DMA_WAITOK)) {
   3561 				error = EIO;
   3562 				goto out;
   3563 			}
   3564 		}
   3565 		if (ccb->ccb_frame->mfr_header.mfh_cmd == MFI_CMD_PD_SCSI_IO) {
   3566 			ccb->ccb_frame->mfr_io.mif_sense_addr_lo =
   3567 			    htole32(ccb->ccb_psense);
   3568 			ccb->ccb_frame->mfr_io.mif_sense_addr_hi = 0;
   3569 		}
   3570 		ccb->ccb_done = mfi_mgmt_done;
   3571 		mfi_post(sc, ccb);
   3572 		while (ccb->ccb_state != MFI_CCB_DONE)
   3573 			tsleep(ccb, PRIBIO, "mfi_fioc", 0);
   3574 
   3575 		if (ccb->ccb_direction & MFI_DATA_IN) {
   3576 			udata = ccb->ccb_data;
   3577 			for (i = 0; i < ioc->mfi_sge_count; i++) {
   3578 				error = copyout(udata,
   3579 				    ioc->mfi_sgl[i].iov_base,
   3580 				    ioc->mfi_sgl[i].iov_len);
   3581 				if (error)
   3582 					goto out;
   3583 				udata = &udata[
   3584 				    ioc->mfi_sgl[i].iov_len];
   3585 			}
   3586 		}
   3587 		if (ioc->mfi_sense_len) {
   3588 			memcpy(&sense_ptr.sense_ptr_data[0],
   3589 			&ioc->mfi_frame.raw[ioc->mfi_sense_off],
   3590 			sizeof(sense_ptr.sense_ptr_data));
   3591 			error = copyout(ccb->ccb_sense,
   3592 			    sense_ptr.user_space,
   3593 			    sizeof(sense_ptr.sense_ptr_data));
   3594 			if (error)
   3595 				goto out;
   3596 		}
   3597 		memcpy(ioc->mfi_frame.raw, ccb->ccb_frame,
   3598 		   sizeof(*ccb->ccb_frame));
   3599 		break;
   3600 	default:
   3601 		printf("mfifioctl unhandled cmd 0x%lx\n", cmd);
   3602 		return ENOTTY;
   3603 	}
   3604 
   3605 out:
   3606 	if (ccb->ccb_data)
   3607 		free(ccb->ccb_data, M_DEVBUF);
   3608 	if (ccb)
   3609 		mfi_put_ccb(ccb);
   3610 	splx(s);
   3611 	return error;
   3612 }
   3613