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      1 /* $NetBSD: mfi.c,v 1.80 2024/02/02 22:26:58 andvar 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 1.80 2024/02/02 22:26:58 andvar 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 *, const union mfi_mbox *,
    160 			    bool);
    161 static int		mfi_mgmt(struct mfi_ccb *,struct scsipi_xfer *,
    162 			    uint32_t, uint32_t, uint32_t, void *,
    163 			    const union mfi_mbox *);
    164 static void		mfi_mgmt_done(struct mfi_ccb *);
    165 
    166 #if NBIO > 0
    167 static int		mfi_ioctl(device_t, u_long, void *);
    168 static int		mfi_ioctl_inq(struct mfi_softc *, struct bioc_inq *);
    169 static int		mfi_ioctl_vol(struct mfi_softc *, struct bioc_vol *);
    170 static int		mfi_ioctl_disk(struct mfi_softc *, struct bioc_disk *);
    171 static int		mfi_ioctl_alarm(struct mfi_softc *,
    172 				struct bioc_alarm *);
    173 static int		mfi_ioctl_blink(struct mfi_softc *sc,
    174 				struct bioc_blink *);
    175 static int		mfi_ioctl_setstate(struct mfi_softc *,
    176 				struct bioc_setstate *);
    177 static int		mfi_bio_hs(struct mfi_softc *, int, int, void *);
    178 static int		mfi_create_sensors(struct mfi_softc *);
    179 static int		mfi_destroy_sensors(struct mfi_softc *);
    180 static void		mfi_sensor_refresh(struct sysmon_envsys *,
    181 				envsys_data_t *);
    182 #endif /* NBIO > 0 */
    183 static bool		mfi_shutdown(device_t, int);
    184 static bool		mfi_suspend(device_t, const pmf_qual_t *);
    185 static bool		mfi_resume(device_t, const pmf_qual_t *);
    186 
    187 static dev_type_open(mfifopen);
    188 static dev_type_close(mfifclose);
    189 static dev_type_ioctl(mfifioctl);
    190 const struct cdevsw mfi_cdevsw = {
    191 	.d_open = mfifopen,
    192 	.d_close = mfifclose,
    193 	.d_read = noread,
    194 	.d_write = nowrite,
    195 	.d_ioctl = mfifioctl,
    196 	.d_stop = nostop,
    197 	.d_tty = notty,
    198 	.d_poll = nopoll,
    199 	.d_mmap = nommap,
    200 	.d_kqfilter = nokqfilter,
    201 	.d_discard = nodiscard,
    202 	.d_flag = D_OTHER
    203 };
    204 
    205 static uint32_t 	mfi_xscale_fw_state(struct mfi_softc *sc);
    206 static void		mfi_xscale_intr_ena(struct mfi_softc *sc);
    207 static void		mfi_xscale_intr_dis(struct mfi_softc *sc);
    208 static int		mfi_xscale_intr(struct mfi_softc *sc);
    209 static void		mfi_xscale_post(struct mfi_softc *sc, struct mfi_ccb *ccb);
    210 
    211 static const struct mfi_iop_ops mfi_iop_xscale = {
    212 	mfi_xscale_fw_state,
    213 	mfi_xscale_intr_dis,
    214 	mfi_xscale_intr_ena,
    215 	mfi_xscale_intr,
    216 	mfi_xscale_post,
    217 	mfi_scsi_ld_io,
    218 };
    219 
    220 static uint32_t 	mfi_ppc_fw_state(struct mfi_softc *sc);
    221 static void		mfi_ppc_intr_ena(struct mfi_softc *sc);
    222 static void		mfi_ppc_intr_dis(struct mfi_softc *sc);
    223 static int		mfi_ppc_intr(struct mfi_softc *sc);
    224 static void		mfi_ppc_post(struct mfi_softc *sc, struct mfi_ccb *ccb);
    225 
    226 static const struct mfi_iop_ops mfi_iop_ppc = {
    227 	mfi_ppc_fw_state,
    228 	mfi_ppc_intr_dis,
    229 	mfi_ppc_intr_ena,
    230 	mfi_ppc_intr,
    231 	mfi_ppc_post,
    232 	mfi_scsi_ld_io,
    233 };
    234 
    235 uint32_t	mfi_gen2_fw_state(struct mfi_softc *sc);
    236 void		mfi_gen2_intr_ena(struct mfi_softc *sc);
    237 void		mfi_gen2_intr_dis(struct mfi_softc *sc);
    238 int		mfi_gen2_intr(struct mfi_softc *sc);
    239 void		mfi_gen2_post(struct mfi_softc *sc, struct mfi_ccb *ccb);
    240 
    241 static const struct mfi_iop_ops mfi_iop_gen2 = {
    242 	mfi_gen2_fw_state,
    243 	mfi_gen2_intr_dis,
    244 	mfi_gen2_intr_ena,
    245 	mfi_gen2_intr,
    246 	mfi_gen2_post,
    247 	mfi_scsi_ld_io,
    248 };
    249 
    250 u_int32_t	mfi_skinny_fw_state(struct mfi_softc *);
    251 void		mfi_skinny_intr_dis(struct mfi_softc *);
    252 void		mfi_skinny_intr_ena(struct mfi_softc *);
    253 int		mfi_skinny_intr(struct mfi_softc *);
    254 void		mfi_skinny_post(struct mfi_softc *, struct mfi_ccb *);
    255 
    256 static const struct mfi_iop_ops mfi_iop_skinny = {
    257 	mfi_skinny_fw_state,
    258 	mfi_skinny_intr_dis,
    259 	mfi_skinny_intr_ena,
    260 	mfi_skinny_intr,
    261 	mfi_skinny_post,
    262 	mfi_scsi_ld_io,
    263 };
    264 
    265 static int	mfi_tbolt_init_desc_pool(struct mfi_softc *);
    266 static int	mfi_tbolt_init_MFI_queue(struct mfi_softc *);
    267 static void	mfi_tbolt_build_mpt_ccb(struct mfi_ccb *);
    268 int		mfi_tbolt_scsi_ld_io(struct mfi_ccb *, struct scsipi_xfer *,
    269 		    uint64_t, uint32_t);
    270 static void	mfi_tbolt_scsi_ld_done(struct mfi_ccb *);
    271 static int	mfi_tbolt_create_sgl(struct mfi_ccb *, int);
    272 void		mfi_tbolt_sync_map_info(struct work *, void *);
    273 static void	mfi_sync_map_complete(struct mfi_ccb *);
    274 
    275 u_int32_t	mfi_tbolt_fw_state(struct mfi_softc *);
    276 void		mfi_tbolt_intr_dis(struct mfi_softc *);
    277 void		mfi_tbolt_intr_ena(struct mfi_softc *);
    278 int		mfi_tbolt_intr(struct mfi_softc *sc);
    279 void		mfi_tbolt_post(struct mfi_softc *, struct mfi_ccb *);
    280 
    281 static const struct mfi_iop_ops mfi_iop_tbolt = {
    282 	mfi_tbolt_fw_state,
    283 	mfi_tbolt_intr_dis,
    284 	mfi_tbolt_intr_ena,
    285 	mfi_tbolt_intr,
    286 	mfi_tbolt_post,
    287 	mfi_tbolt_scsi_ld_io,
    288 };
    289 
    290 #define mfi_fw_state(_s)	((_s)->sc_iop->mio_fw_state(_s))
    291 #define mfi_intr_enable(_s)	((_s)->sc_iop->mio_intr_ena(_s))
    292 #define mfi_intr_disable(_s)	((_s)->sc_iop->mio_intr_dis(_s))
    293 #define mfi_my_intr(_s)		((_s)->sc_iop->mio_intr(_s))
    294 #define mfi_post(_s, _c)	((_s)->sc_iop->mio_post((_s), (_c)))
    295 
    296 static struct mfi_ccb *
    297 mfi_get_ccb(struct mfi_softc *sc)
    298 {
    299 	struct mfi_ccb		*ccb;
    300 	int			s;
    301 
    302 	s = splbio();
    303 	ccb = TAILQ_FIRST(&sc->sc_ccb_freeq);
    304 	if (ccb) {
    305 		TAILQ_REMOVE(&sc->sc_ccb_freeq, ccb, ccb_link);
    306 		ccb->ccb_state = MFI_CCB_READY;
    307 	}
    308 	splx(s);
    309 
    310 	DNPRINTF(MFI_D_CCB, "%s: mfi_get_ccb: %p\n", DEVNAME(sc), ccb);
    311 	if (__predict_false(ccb == NULL && sc->sc_running))
    312 		aprint_error_dev(sc->sc_dev, "out of ccb\n");
    313 
    314 	return ccb;
    315 }
    316 
    317 static void
    318 mfi_put_ccb(struct mfi_ccb *ccb)
    319 {
    320 	struct mfi_softc	*sc = ccb->ccb_sc;
    321 	struct mfi_frame_header	*hdr = &ccb->ccb_frame->mfr_header;
    322 	int			s;
    323 
    324 	DNPRINTF(MFI_D_CCB, "%s: mfi_put_ccb: %p\n", DEVNAME(sc), ccb);
    325 
    326 	hdr->mfh_cmd_status = 0x0;
    327 	hdr->mfh_flags = 0x0;
    328 	ccb->ccb_state = MFI_CCB_FREE;
    329 	ccb->ccb_xs = NULL;
    330 	ccb->ccb_flags = 0;
    331 	ccb->ccb_done = NULL;
    332 	ccb->ccb_direction = 0;
    333 	ccb->ccb_frame_size = 0;
    334 	ccb->ccb_extra_frames = 0;
    335 	ccb->ccb_sgl = NULL;
    336 	ccb->ccb_data = NULL;
    337 	ccb->ccb_len = 0;
    338 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
    339 		/* erase tb_request_desc but preserve SMID */
    340 		int index = ccb->ccb_tb_request_desc.header.SMID;
    341 		ccb->ccb_tb_request_desc.words = 0;
    342 		ccb->ccb_tb_request_desc.header.SMID = index;
    343 	}
    344 	s = splbio();
    345 	TAILQ_INSERT_TAIL(&sc->sc_ccb_freeq, ccb, ccb_link);
    346 	splx(s);
    347 }
    348 
    349 static int
    350 mfi_destroy_ccb(struct mfi_softc *sc)
    351 {
    352 	struct mfi_ccb		*ccb;
    353 	uint32_t		i;
    354 
    355 	DNPRINTF(MFI_D_CCB, "%s: mfi_destroy_ccb\n", DEVNAME(sc));
    356 
    357 
    358 	for (i = 0; (ccb = mfi_get_ccb(sc)) != NULL; i++) {
    359 		/* create a dma map for transfer */
    360 		bus_dmamap_destroy(sc->sc_datadmat, ccb->ccb_dmamap);
    361 	}
    362 
    363 	if (i < sc->sc_max_cmds)
    364 		return EBUSY;
    365 
    366 	free(sc->sc_ccb, M_DEVBUF);
    367 
    368 	return 0;
    369 }
    370 
    371 static int
    372 mfi_init_ccb(struct mfi_softc *sc)
    373 {
    374 	struct mfi_ccb		*ccb;
    375 	uint32_t		i;
    376 	int			error;
    377 	bus_addr_t		io_req_base_phys;
    378 	uint8_t			*io_req_base;
    379 	int offset;
    380 
    381 	DNPRINTF(MFI_D_CCB, "%s: mfi_init_ccb\n", DEVNAME(sc));
    382 
    383 	sc->sc_ccb = malloc(sizeof(struct mfi_ccb) * sc->sc_max_cmds,
    384 	    M_DEVBUF, M_WAITOK|M_ZERO);
    385 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
    386 		/*
    387 		 * The first 256 bytes (SMID 0) is not used.
    388 		 * Don't add to the cmd list.
    389 		 */
    390 		io_req_base = (uint8_t *)MFIMEM_KVA(sc->sc_tbolt_reqmsgpool) +
    391 		    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE;
    392 		io_req_base_phys = MFIMEM_DVA(sc->sc_tbolt_reqmsgpool) +
    393 		    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE;
    394 	} else {
    395 		io_req_base = NULL;	/* XXX: gcc */
    396 		io_req_base_phys = 0;	/* XXX: gcc */
    397 	}
    398 
    399 	for (i = 0; i < sc->sc_max_cmds; i++) {
    400 		ccb = &sc->sc_ccb[i];
    401 
    402 		ccb->ccb_sc = sc;
    403 
    404 		/* select i'th frame */
    405 		ccb->ccb_frame = (union mfi_frame *)
    406 		    ((char*)MFIMEM_KVA(sc->sc_frames) + sc->sc_frames_size * i);
    407 		ccb->ccb_pframe =
    408 		    MFIMEM_DVA(sc->sc_frames) + sc->sc_frames_size * i;
    409 		ccb->ccb_frame->mfr_header.mfh_context = i;
    410 
    411 		/* select i'th sense */
    412 		ccb->ccb_sense = (struct mfi_sense *)
    413 		    ((char*)MFIMEM_KVA(sc->sc_sense) + MFI_SENSE_SIZE * i);
    414 		ccb->ccb_psense =
    415 		    (MFIMEM_DVA(sc->sc_sense) + MFI_SENSE_SIZE * i);
    416 
    417 		/* create a dma map for transfer */
    418 		error = bus_dmamap_create(sc->sc_datadmat,
    419 		    MAXPHYS, sc->sc_max_sgl, MAXPHYS, 0,
    420 		    BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &ccb->ccb_dmamap);
    421 		if (error) {
    422 			aprint_error_dev(sc->sc_dev,
    423 			    "cannot create ccb dmamap (%d)\n", error);
    424 			goto destroy;
    425 		}
    426 		if (sc->sc_ioptype == MFI_IOP_TBOLT) {
    427 			offset = MEGASAS_THUNDERBOLT_NEW_MSG_SIZE * i;
    428 			ccb->ccb_tb_io_request =
    429 			    (struct mfi_mpi2_request_raid_scsi_io *)
    430 			    (io_req_base + offset);
    431 			ccb->ccb_tb_pio_request =
    432 			    io_req_base_phys + offset;
    433 			offset = MEGASAS_MAX_SZ_CHAIN_FRAME * i;
    434 			ccb->ccb_tb_sg_frame =
    435 			    (mpi2_sge_io_union *)(sc->sc_reply_pool_limit +
    436 			    offset);
    437 			ccb->ccb_tb_psg_frame = sc->sc_sg_frame_busaddr +
    438 			    offset;
    439 			/* SMID 0 is reserved. Set SMID/index from 1 */
    440 			ccb->ccb_tb_request_desc.header.SMID = i + 1;
    441 		}
    442 
    443 		DNPRINTF(MFI_D_CCB,
    444 		    "ccb(%d): %p frame: %p (%#lx) sense: %p (%#lx) map: %p\n",
    445 		    ccb->ccb_frame->mfr_header.mfh_context, ccb,
    446 		    ccb->ccb_frame, (u_long)ccb->ccb_pframe,
    447 		    ccb->ccb_sense, (u_long)ccb->ccb_psense,
    448 		    ccb->ccb_dmamap);
    449 
    450 		/* add ccb to queue */
    451 		mfi_put_ccb(ccb);
    452 	}
    453 
    454 	return 0;
    455 destroy:
    456 	/* free dma maps and ccb memory */
    457 	while (i) {
    458 		i--;
    459 		ccb = &sc->sc_ccb[i];
    460 		bus_dmamap_destroy(sc->sc_datadmat, ccb->ccb_dmamap);
    461 	}
    462 
    463 	free(sc->sc_ccb, M_DEVBUF);
    464 
    465 	return 1;
    466 }
    467 
    468 static uint32_t
    469 mfi_read(struct mfi_softc *sc, bus_size_t r)
    470 {
    471 	uint32_t rv;
    472 
    473 	bus_space_barrier(sc->sc_iot, sc->sc_ioh, r, 4,
    474 	    BUS_SPACE_BARRIER_READ);
    475 	rv = bus_space_read_4(sc->sc_iot, sc->sc_ioh, r);
    476 
    477 	DNPRINTF(MFI_D_RW, "%s: mr %#zx 0x08%x ", DEVNAME(sc), r, rv);
    478 	return rv;
    479 }
    480 
    481 static void
    482 mfi_write(struct mfi_softc *sc, bus_size_t r, uint32_t v)
    483 {
    484 	DNPRINTF(MFI_D_RW, "%s: mw %#zx 0x%08x", DEVNAME(sc), r, v);
    485 
    486 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, r, v);
    487 	bus_space_barrier(sc->sc_iot, sc->sc_ioh, r, 4,
    488 	    BUS_SPACE_BARRIER_WRITE);
    489 }
    490 
    491 static struct mfi_mem *
    492 mfi_allocmem(struct mfi_softc *sc, size_t size)
    493 {
    494 	struct mfi_mem		*mm;
    495 	int			nsegs;
    496 
    497 	DNPRINTF(MFI_D_MEM, "%s: mfi_allocmem: %zu\n", DEVNAME(sc),
    498 	    size);
    499 
    500 	mm = malloc(sizeof(struct mfi_mem), M_DEVBUF, M_WAITOK|M_ZERO);
    501 	mm->am_size = size;
    502 
    503 	if (bus_dmamap_create(sc->sc_dmat, size, 1, size, 0,
    504 	    BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &mm->am_map) != 0)
    505 		goto amfree;
    506 
    507 	if (bus_dmamem_alloc(sc->sc_dmat, size, PAGE_SIZE, 0, &mm->am_seg, 1,
    508 	    &nsegs, BUS_DMA_NOWAIT) != 0)
    509 		goto destroy;
    510 
    511 	if (bus_dmamem_map(sc->sc_dmat, &mm->am_seg, nsegs, size, &mm->am_kva,
    512 	    BUS_DMA_NOWAIT) != 0)
    513 		goto free;
    514 
    515 	if (bus_dmamap_load(sc->sc_dmat, mm->am_map, mm->am_kva, size, NULL,
    516 	    BUS_DMA_NOWAIT) != 0)
    517 		goto unmap;
    518 
    519 	DNPRINTF(MFI_D_MEM, "  kva: %p  dva: %" PRIxBUSADDR "  map: %p\n",
    520 	    mm->am_kva, mm->am_map->dm_segs[0].ds_addr, mm->am_map);
    521 
    522 	memset(mm->am_kva, 0, size);
    523 	return mm;
    524 
    525 unmap:
    526 	bus_dmamem_unmap(sc->sc_dmat, mm->am_kva, size);
    527 free:
    528 	bus_dmamem_free(sc->sc_dmat, &mm->am_seg, 1);
    529 destroy:
    530 	bus_dmamap_destroy(sc->sc_dmat, mm->am_map);
    531 amfree:
    532 	free(mm, M_DEVBUF);
    533 
    534 	return NULL;
    535 }
    536 
    537 static void
    538 mfi_freemem(struct mfi_softc *sc, struct mfi_mem **mmp)
    539 {
    540 	struct mfi_mem *mm = *mmp;
    541 
    542 	if (mm == NULL)
    543 		return;
    544 
    545 	*mmp = NULL;
    546 
    547 	DNPRINTF(MFI_D_MEM, "%s: mfi_freemem: %p\n", DEVNAME(sc), mm);
    548 
    549 	bus_dmamap_unload(sc->sc_dmat, mm->am_map);
    550 	bus_dmamem_unmap(sc->sc_dmat, mm->am_kva, mm->am_size);
    551 	bus_dmamem_free(sc->sc_dmat, &mm->am_seg, 1);
    552 	bus_dmamap_destroy(sc->sc_dmat, mm->am_map);
    553 	free(mm, M_DEVBUF);
    554 }
    555 
    556 static int
    557 mfi_transition_firmware(struct mfi_softc *sc)
    558 {
    559 	uint32_t		fw_state, cur_state;
    560 	int			max_wait, i;
    561 
    562 	fw_state = mfi_fw_state(sc) & MFI_STATE_MASK;
    563 
    564 	DNPRINTF(MFI_D_CMD, "%s: mfi_transition_firmware: %#x\n", DEVNAME(sc),
    565 	    fw_state);
    566 
    567 	while (fw_state != MFI_STATE_READY) {
    568 		DNPRINTF(MFI_D_MISC,
    569 		    "%s: waiting for firmware to become ready\n",
    570 		    DEVNAME(sc));
    571 		cur_state = fw_state;
    572 		switch (fw_state) {
    573 		case MFI_STATE_FAULT:
    574 			aprint_error_dev(sc->sc_dev, "firmware fault\n");
    575 			return 1;
    576 		case MFI_STATE_WAIT_HANDSHAKE:
    577 			if (sc->sc_ioptype == MFI_IOP_SKINNY ||
    578 			    sc->sc_ioptype == MFI_IOP_TBOLT)
    579 				mfi_write(sc, MFI_SKINNY_IDB, MFI_INIT_CLEAR_HANDSHAKE);
    580 			else
    581 				mfi_write(sc, MFI_IDB, MFI_INIT_CLEAR_HANDSHAKE);
    582 			max_wait = 2;
    583 			break;
    584 		case MFI_STATE_OPERATIONAL:
    585 			if (sc->sc_ioptype == MFI_IOP_SKINNY ||
    586 			    sc->sc_ioptype == MFI_IOP_TBOLT)
    587 				mfi_write(sc, MFI_SKINNY_IDB, MFI_RESET_FLAGS);
    588 			else
    589 				mfi_write(sc, MFI_IDB, MFI_INIT_READY);
    590 			max_wait = 10;
    591 			break;
    592 		case MFI_STATE_UNDEFINED:
    593 		case MFI_STATE_BB_INIT:
    594 			max_wait = 2;
    595 			break;
    596 		case MFI_STATE_FW_INIT:
    597 		case MFI_STATE_DEVICE_SCAN:
    598 		case MFI_STATE_FLUSH_CACHE:
    599 			max_wait = 20;
    600 			break;
    601 		case MFI_STATE_BOOT_MESSAGE_PENDING:
    602 			if (sc->sc_ioptype == MFI_IOP_SKINNY ||
    603 			    sc->sc_ioptype == MFI_IOP_TBOLT) {
    604 				mfi_write(sc, MFI_SKINNY_IDB, MFI_INIT_HOTPLUG);
    605 			} else {
    606 				mfi_write(sc, MFI_IDB, MFI_INIT_HOTPLUG);
    607 			}
    608 			max_wait = 180;
    609 			break;
    610 		default:
    611 			aprint_error_dev(sc->sc_dev,
    612 			    "unknown firmware state %d\n", fw_state);
    613 			return 1;
    614 		}
    615 		for (i = 0; i < (max_wait * 10); i++) {
    616 			fw_state = mfi_fw_state(sc) & MFI_STATE_MASK;
    617 			if (fw_state == cur_state)
    618 				DELAY(100000);
    619 			else
    620 				break;
    621 		}
    622 		if (fw_state == cur_state) {
    623 			aprint_error_dev(sc->sc_dev,
    624 			    "firmware stuck in state %#x\n", fw_state);
    625 			return 1;
    626 		}
    627 	}
    628 
    629 	return 0;
    630 }
    631 
    632 static int
    633 mfi_initialize_firmware(struct mfi_softc *sc)
    634 {
    635 	struct mfi_ccb		*ccb;
    636 	struct mfi_init_frame	*init;
    637 	struct mfi_init_qinfo	*qinfo;
    638 
    639 	DNPRINTF(MFI_D_MISC, "%s: mfi_initialize_firmware\n", DEVNAME(sc));
    640 
    641 	if ((ccb = mfi_get_ccb(sc)) == NULL)
    642 		return 1;
    643 
    644 	init = &ccb->ccb_frame->mfr_init;
    645 	qinfo = (struct mfi_init_qinfo *)((uint8_t *)init + MFI_FRAME_SIZE);
    646 
    647 	memset(qinfo, 0, sizeof *qinfo);
    648 	qinfo->miq_rq_entries = sc->sc_max_cmds + 1;
    649 	qinfo->miq_rq_addr_lo = htole32(MFIMEM_DVA(sc->sc_pcq) +
    650 	    offsetof(struct mfi_prod_cons, mpc_reply_q));
    651 	qinfo->miq_pi_addr_lo = htole32(MFIMEM_DVA(sc->sc_pcq) +
    652 	    offsetof(struct mfi_prod_cons, mpc_producer));
    653 	qinfo->miq_ci_addr_lo = htole32(MFIMEM_DVA(sc->sc_pcq) +
    654 	    offsetof(struct mfi_prod_cons, mpc_consumer));
    655 
    656 	init->mif_header.mfh_cmd = MFI_CMD_INIT;
    657 	init->mif_header.mfh_data_len = sizeof *qinfo;
    658 	init->mif_qinfo_new_addr_lo = htole32(ccb->ccb_pframe + MFI_FRAME_SIZE);
    659 
    660 	DNPRINTF(MFI_D_MISC, "%s: entries: %#x rq: %#x pi: %#x ci: %#x\n",
    661 	    DEVNAME(sc),
    662 	    qinfo->miq_rq_entries, qinfo->miq_rq_addr_lo,
    663 	    qinfo->miq_pi_addr_lo, qinfo->miq_ci_addr_lo);
    664 
    665 	if (mfi_poll(ccb)) {
    666 		aprint_error_dev(sc->sc_dev,
    667 		    "mfi_initialize_firmware failed\n");
    668 		return 1;
    669 	}
    670 
    671 	mfi_put_ccb(ccb);
    672 
    673 	return 0;
    674 }
    675 
    676 static int
    677 mfi_get_info(struct mfi_softc *sc)
    678 {
    679 #ifdef MFI_DEBUG
    680 	int i;
    681 #endif
    682 	DNPRINTF(MFI_D_MISC, "%s: mfi_get_info\n", DEVNAME(sc));
    683 
    684 	if (mfi_mgmt_internal(sc, MR_DCMD_CTRL_GET_INFO, MFI_DATA_IN,
    685 	    sizeof(sc->sc_info), &sc->sc_info, NULL, cold ? true : false))
    686 		return 1;
    687 
    688 #ifdef MFI_DEBUG
    689 	for (i = 0; i < sc->sc_info.mci_image_component_count; i++) {
    690 		printf("%s: active FW %s Version %s date %s time %s\n",
    691 		    DEVNAME(sc),
    692 		    sc->sc_info.mci_image_component[i].mic_name,
    693 		    sc->sc_info.mci_image_component[i].mic_version,
    694 		    sc->sc_info.mci_image_component[i].mic_build_date,
    695 		    sc->sc_info.mci_image_component[i].mic_build_time);
    696 	}
    697 
    698 	for (i = 0; i < sc->sc_info.mci_pending_image_component_count; i++) {
    699 		printf("%s: pending FW %s Version %s date %s time %s\n",
    700 		    DEVNAME(sc),
    701 		    sc->sc_info.mci_pending_image_component[i].mic_name,
    702 		    sc->sc_info.mci_pending_image_component[i].mic_version,
    703 		    sc->sc_info.mci_pending_image_component[i].mic_build_date,
    704 		    sc->sc_info.mci_pending_image_component[i].mic_build_time);
    705 	}
    706 
    707 	printf("%s: max_arms %d max_spans %d max_arrs %d max_lds %d name %s\n",
    708 	    DEVNAME(sc),
    709 	    sc->sc_info.mci_max_arms,
    710 	    sc->sc_info.mci_max_spans,
    711 	    sc->sc_info.mci_max_arrays,
    712 	    sc->sc_info.mci_max_lds,
    713 	    sc->sc_info.mci_product_name);
    714 
    715 	printf("%s: serial %s present %#x fw time %d max_cmds %d max_sg %d\n",
    716 	    DEVNAME(sc),
    717 	    sc->sc_info.mci_serial_number,
    718 	    sc->sc_info.mci_hw_present,
    719 	    sc->sc_info.mci_current_fw_time,
    720 	    sc->sc_info.mci_max_cmds,
    721 	    sc->sc_info.mci_max_sg_elements);
    722 
    723 	printf("%s: max_rq %d lds_pres %d lds_deg %d lds_off %d pd_pres %d\n",
    724 	    DEVNAME(sc),
    725 	    sc->sc_info.mci_max_request_size,
    726 	    sc->sc_info.mci_lds_present,
    727 	    sc->sc_info.mci_lds_degraded,
    728 	    sc->sc_info.mci_lds_offline,
    729 	    sc->sc_info.mci_pd_present);
    730 
    731 	printf("%s: pd_dsk_prs %d pd_dsk_pred_fail %d pd_dsk_fail %d\n",
    732 	    DEVNAME(sc),
    733 	    sc->sc_info.mci_pd_disks_present,
    734 	    sc->sc_info.mci_pd_disks_pred_failure,
    735 	    sc->sc_info.mci_pd_disks_failed);
    736 
    737 	printf("%s: nvram %d mem %d flash %d\n",
    738 	    DEVNAME(sc),
    739 	    sc->sc_info.mci_nvram_size,
    740 	    sc->sc_info.mci_memory_size,
    741 	    sc->sc_info.mci_flash_size);
    742 
    743 	printf("%s: ram_cor %d ram_uncor %d clus_all %d clus_act %d\n",
    744 	    DEVNAME(sc),
    745 	    sc->sc_info.mci_ram_correctable_errors,
    746 	    sc->sc_info.mci_ram_uncorrectable_errors,
    747 	    sc->sc_info.mci_cluster_allowed,
    748 	    sc->sc_info.mci_cluster_active);
    749 
    750 	printf("%s: max_strps_io %d raid_lvl %#x adapt_ops %#x ld_ops %#x\n",
    751 	    DEVNAME(sc),
    752 	    sc->sc_info.mci_max_strips_per_io,
    753 	    sc->sc_info.mci_raid_levels,
    754 	    sc->sc_info.mci_adapter_ops,
    755 	    sc->sc_info.mci_ld_ops);
    756 
    757 	printf("%s: strp_sz_min %d strp_sz_max %d pd_ops %#x pd_mix %#x\n",
    758 	    DEVNAME(sc),
    759 	    sc->sc_info.mci_stripe_sz_ops.min,
    760 	    sc->sc_info.mci_stripe_sz_ops.max,
    761 	    sc->sc_info.mci_pd_ops,
    762 	    sc->sc_info.mci_pd_mix_support);
    763 
    764 	printf("%s: ecc_bucket %d pckg_prop %s\n",
    765 	    DEVNAME(sc),
    766 	    sc->sc_info.mci_ecc_bucket_count,
    767 	    sc->sc_info.mci_package_version);
    768 
    769 	printf("%s: sq_nm %d prd_fail_poll %d intr_thrtl %d intr_thrtl_to %d\n",
    770 	    DEVNAME(sc),
    771 	    sc->sc_info.mci_properties.mcp_seq_num,
    772 	    sc->sc_info.mci_properties.mcp_pred_fail_poll_interval,
    773 	    sc->sc_info.mci_properties.mcp_intr_throttle_cnt,
    774 	    sc->sc_info.mci_properties.mcp_intr_throttle_timeout);
    775 
    776 	printf("%s: rbld_rate %d patr_rd_rate %d bgi_rate %d cc_rate %d\n",
    777 	    DEVNAME(sc),
    778 	    sc->sc_info.mci_properties.mcp_rebuild_rate,
    779 	    sc->sc_info.mci_properties.mcp_patrol_read_rate,
    780 	    sc->sc_info.mci_properties.mcp_bgi_rate,
    781 	    sc->sc_info.mci_properties.mcp_cc_rate);
    782 
    783 	printf("%s: rc_rate %d ch_flsh %d spin_cnt %d spin_dly %d clus_en %d\n",
    784 	    DEVNAME(sc),
    785 	    sc->sc_info.mci_properties.mcp_recon_rate,
    786 	    sc->sc_info.mci_properties.mcp_cache_flush_interval,
    787 	    sc->sc_info.mci_properties.mcp_spinup_drv_cnt,
    788 	    sc->sc_info.mci_properties.mcp_spinup_delay,
    789 	    sc->sc_info.mci_properties.mcp_cluster_enable);
    790 
    791 	printf("%s: coerc %d alarm %d dis_auto_rbld %d dis_bat_wrn %d ecc %d\n",
    792 	    DEVNAME(sc),
    793 	    sc->sc_info.mci_properties.mcp_coercion_mode,
    794 	    sc->sc_info.mci_properties.mcp_alarm_enable,
    795 	    sc->sc_info.mci_properties.mcp_disable_auto_rebuild,
    796 	    sc->sc_info.mci_properties.mcp_disable_battery_warn,
    797 	    sc->sc_info.mci_properties.mcp_ecc_bucket_size);
    798 
    799 	printf("%s: ecc_leak %d rest_hs %d exp_encl_dev %d\n",
    800 	    DEVNAME(sc),
    801 	    sc->sc_info.mci_properties.mcp_ecc_bucket_leak_rate,
    802 	    sc->sc_info.mci_properties.mcp_restore_hotspare_on_insertion,
    803 	    sc->sc_info.mci_properties.mcp_expose_encl_devices);
    804 
    805 	printf("%s: vendor %#x device %#x subvendor %#x subdevice %#x\n",
    806 	    DEVNAME(sc),
    807 	    sc->sc_info.mci_pci.mip_vendor,
    808 	    sc->sc_info.mci_pci.mip_device,
    809 	    sc->sc_info.mci_pci.mip_subvendor,
    810 	    sc->sc_info.mci_pci.mip_subdevice);
    811 
    812 	printf("%s: type %#x port_count %d port_addr ",
    813 	    DEVNAME(sc),
    814 	    sc->sc_info.mci_host.mih_type,
    815 	    sc->sc_info.mci_host.mih_port_count);
    816 
    817 	for (i = 0; i < 8; i++)
    818 		printf("%.0" PRIx64 " ", sc->sc_info.mci_host.mih_port_addr[i]);
    819 	printf("\n");
    820 
    821 	printf("%s: type %.x port_count %d port_addr ",
    822 	    DEVNAME(sc),
    823 	    sc->sc_info.mci_device.mid_type,
    824 	    sc->sc_info.mci_device.mid_port_count);
    825 
    826 	for (i = 0; i < 8; i++) {
    827 		printf("%.0" PRIx64 " ",
    828 		    sc->sc_info.mci_device.mid_port_addr[i]);
    829 	}
    830 	printf("\n");
    831 #endif /* MFI_DEBUG */
    832 
    833 	return 0;
    834 }
    835 
    836 static int
    837 mfi_get_bbu(struct mfi_softc *sc, struct mfi_bbu_status *stat)
    838 {
    839 	DNPRINTF(MFI_D_MISC, "%s: mfi_get_bbu\n", DEVNAME(sc));
    840 
    841 	if (mfi_mgmt_internal(sc, MR_DCMD_BBU_GET_STATUS, MFI_DATA_IN,
    842 	    sizeof(*stat), stat, NULL, cold ? true : false))
    843 		return MFI_BBU_UNKNOWN;
    844 #ifdef MFI_DEBUG
    845 	printf("bbu type %d, voltage %d, current %d, temperature %d, "
    846 	    "status 0x%x\n", stat->battery_type, stat->voltage, stat->current,
    847 	    stat->temperature, stat->fw_status);
    848 	printf("details: ");
    849 	switch (stat->battery_type) {
    850 	case MFI_BBU_TYPE_IBBU:
    851 		printf("guage %d relative charge %d charger state %d "
    852 		    "charger ctrl %d\n", stat->detail.ibbu.gas_guage_status,
    853 		    stat->detail.ibbu.relative_charge ,
    854 		    stat->detail.ibbu.charger_system_state ,
    855 		    stat->detail.ibbu.charger_system_ctrl);
    856 		printf("\tcurrent %d abs charge %d max error %d\n",
    857 		    stat->detail.ibbu.charging_current ,
    858 		    stat->detail.ibbu.absolute_charge ,
    859 		    stat->detail.ibbu.max_error);
    860 		break;
    861 	case MFI_BBU_TYPE_BBU:
    862 		printf("guage %d relative charge %d charger state %d\n",
    863 		    stat->detail.ibbu.gas_guage_status,
    864 		    stat->detail.bbu.relative_charge ,
    865 		    stat->detail.bbu.charger_status );
    866 		printf("\trem capacity %d fyll capacity %d SOH %d\n",
    867 		    stat->detail.bbu.remaining_capacity ,
    868 		    stat->detail.bbu.full_charge_capacity ,
    869 		    stat->detail.bbu.is_SOH_good);
    870 		break;
    871 	default:
    872 		printf("\n");
    873 	}
    874 #endif
    875 	switch (stat->battery_type) {
    876 	case MFI_BBU_TYPE_BBU:
    877 		return (stat->detail.bbu.is_SOH_good ?
    878 		    MFI_BBU_GOOD : MFI_BBU_BAD);
    879 	case MFI_BBU_TYPE_NONE:
    880 		return MFI_BBU_UNKNOWN;
    881 	default:
    882 		if (stat->fw_status &
    883 		    (MFI_BBU_STATE_PACK_MISSING |
    884 		     MFI_BBU_STATE_VOLTAGE_LOW |
    885 		     MFI_BBU_STATE_TEMPERATURE_HIGH |
    886 		     MFI_BBU_STATE_LEARN_CYC_FAIL |
    887 		     MFI_BBU_STATE_LEARN_CYC_TIMEOUT |
    888 		     MFI_BBU_STATE_I2C_ERR_DETECT))
    889 			return MFI_BBU_BAD;
    890 		return MFI_BBU_GOOD;
    891 	}
    892 }
    893 
    894 static void
    895 mfiminphys(struct buf *bp)
    896 {
    897 	DNPRINTF(MFI_D_MISC, "mfiminphys: %d\n", bp->b_bcount);
    898 
    899 	/* XXX currently using MFI_MAXFER = MAXPHYS */
    900 	if (bp->b_bcount > MFI_MAXFER)
    901 		bp->b_bcount = MFI_MAXFER;
    902 	minphys(bp);
    903 }
    904 
    905 int
    906 mfi_rescan(device_t self, const char *ifattr, const int *locators)
    907 {
    908 	struct mfi_softc *sc = device_private(self);
    909 
    910 	if (sc->sc_child != NULL)
    911 		return 0;
    912 
    913 	sc->sc_child = config_found(self, &sc->sc_chan, scsiprint, CFARGS_NONE);
    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 	union mfi_mbox		mbox;
    973 	int s = splbio();
    974 
    975 	DNPRINTF(MFI_D_MISC, "%s: mfi_shutdown\n", DEVNAME(sc));
    976 	if (sc->sc_running) {
    977 		memset(&mbox, 0, sizeof(mbox));
    978 		mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE;
    979 		if (mfi_mgmt_internal(sc, MR_DCMD_CTRL_CACHE_FLUSH,
    980 		    MFI_DATA_NONE, 0, NULL, &mbox, true)) {
    981 			aprint_error_dev(dev, "shutdown: cache flush failed\n");
    982 			goto fail;
    983 		}
    984 
    985 		mbox.b[0] = 0;
    986 		if (mfi_mgmt_internal(sc, MR_DCMD_CTRL_SHUTDOWN,
    987 		    MFI_DATA_NONE, 0, NULL, &mbox, true)) {
    988 			aprint_error_dev(dev, "shutdown: "
    989 			    "firmware shutdown failed\n");
    990 			goto fail;
    991 		}
    992 		sc->sc_running = false;
    993 	}
    994 	splx(s);
    995 	return true;
    996 fail:
    997 	splx(s);
    998 	return false;
    999 }
   1000 
   1001 static bool
   1002 mfi_suspend(device_t dev, const pmf_qual_t *q)
   1003 {
   1004 	/* XXX to be implemented */
   1005 	return false;
   1006 }
   1007 
   1008 static bool
   1009 mfi_resume(device_t dev, const pmf_qual_t *q)
   1010 {
   1011 	/* XXX to be implemented */
   1012 	return false;
   1013 }
   1014 
   1015 int
   1016 mfi_attach(struct mfi_softc *sc, enum mfi_iop iop)
   1017 {
   1018 	struct scsipi_adapter *adapt = &sc->sc_adapt;
   1019 	struct scsipi_channel *chan = &sc->sc_chan;
   1020 	uint32_t		status, frames, max_sgl;
   1021 	int			i;
   1022 
   1023 	DNPRINTF(MFI_D_MISC, "%s: mfi_attach\n", DEVNAME(sc));
   1024 
   1025 	sc->sc_ioptype = iop;
   1026 
   1027 	switch (iop) {
   1028 	case MFI_IOP_XSCALE:
   1029 		sc->sc_iop = &mfi_iop_xscale;
   1030 		break;
   1031 	case MFI_IOP_PPC:
   1032 		sc->sc_iop = &mfi_iop_ppc;
   1033 		break;
   1034 	case MFI_IOP_GEN2:
   1035 		sc->sc_iop = &mfi_iop_gen2;
   1036 		break;
   1037 	case MFI_IOP_SKINNY:
   1038 		sc->sc_iop = &mfi_iop_skinny;
   1039 		break;
   1040 	case MFI_IOP_TBOLT:
   1041 		sc->sc_iop = &mfi_iop_tbolt;
   1042 		break;
   1043 	default:
   1044 		panic("%s: unknown iop %d", DEVNAME(sc), iop);
   1045 	}
   1046 
   1047 	if (mfi_transition_firmware(sc))
   1048 		return 1;
   1049 
   1050 	TAILQ_INIT(&sc->sc_ccb_freeq);
   1051 
   1052 	status = mfi_fw_state(sc);
   1053 	sc->sc_max_cmds = status & MFI_STATE_MAXCMD_MASK;
   1054 	max_sgl = (status & MFI_STATE_MAXSGL_MASK) >> 16;
   1055 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
   1056 		sc->sc_max_sgl = uimin(max_sgl, (128 * 1024) / PAGE_SIZE + 1);
   1057 		sc->sc_sgl_size = sizeof(struct mfi_sg_ieee);
   1058 	} else if (sc->sc_64bit_dma) {
   1059 		sc->sc_max_sgl = uimin(max_sgl, (128 * 1024) / PAGE_SIZE + 1);
   1060 		sc->sc_sgl_size = sizeof(struct mfi_sg64);
   1061 	} else {
   1062 		sc->sc_max_sgl = max_sgl;
   1063 		sc->sc_sgl_size = sizeof(struct mfi_sg32);
   1064 	}
   1065 	if (sc->sc_ioptype == MFI_IOP_SKINNY)
   1066 		sc->sc_sgl_size = sizeof(struct mfi_sg_ieee);
   1067 	DNPRINTF(MFI_D_MISC, "%s: max commands: %u, max sgl: %u\n",
   1068 	    DEVNAME(sc), sc->sc_max_cmds, sc->sc_max_sgl);
   1069 
   1070 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
   1071 		uint32_t tb_mem_size;
   1072 		/* for Alignment */
   1073 		tb_mem_size = MEGASAS_THUNDERBOLT_MSG_ALIGNMENT;
   1074 
   1075 		tb_mem_size +=
   1076 		    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE * (sc->sc_max_cmds + 1);
   1077 		sc->sc_reply_pool_size =
   1078 		    ((sc->sc_max_cmds + 1 + 15) / 16) * 16;
   1079 		tb_mem_size +=
   1080 		    MEGASAS_THUNDERBOLT_REPLY_SIZE * sc->sc_reply_pool_size;
   1081 
   1082 		/* this is for SGL's */
   1083 		tb_mem_size += MEGASAS_MAX_SZ_CHAIN_FRAME * sc->sc_max_cmds;
   1084 		sc->sc_tbolt_reqmsgpool = mfi_allocmem(sc, tb_mem_size);
   1085 		if (sc->sc_tbolt_reqmsgpool == NULL) {
   1086 			aprint_error_dev(sc->sc_dev,
   1087 			    "unable to allocate thunderbolt "
   1088 			    "request message pool\n");
   1089 			goto nopcq;
   1090 		}
   1091 		if (mfi_tbolt_init_desc_pool(sc)) {
   1092 			aprint_error_dev(sc->sc_dev,
   1093 			    "Thunderbolt pool preparation error\n");
   1094 			goto nopcq;
   1095 		}
   1096 
   1097 		/*
   1098 		 * Allocate DMA memory mapping for MPI2 IOC Init descriptor,
   1099 		 * we are taking it different from what we have allocated for
   1100 		 * Request and reply descriptors to avoid confusion later
   1101 		 */
   1102 		sc->sc_tbolt_ioc_init = mfi_allocmem(sc,
   1103 		    sizeof(struct mpi2_ioc_init_request));
   1104 		if (sc->sc_tbolt_ioc_init == NULL) {
   1105 			aprint_error_dev(sc->sc_dev,
   1106 			    "unable to allocate thunderbolt IOC init memory");
   1107 			goto nopcq;
   1108 		}
   1109 
   1110 		sc->sc_tbolt_verbuf = mfi_allocmem(sc,
   1111 		    MEGASAS_MAX_NAME*sizeof(bus_addr_t));
   1112 		if (sc->sc_tbolt_verbuf == NULL) {
   1113 			aprint_error_dev(sc->sc_dev,
   1114 			    "unable to allocate thunderbolt version buffer\n");
   1115 			goto nopcq;
   1116 		}
   1117 
   1118 	}
   1119 	/* consumer/producer and reply queue memory */
   1120 	sc->sc_pcq = mfi_allocmem(sc, (sizeof(uint32_t) * sc->sc_max_cmds) +
   1121 	    sizeof(struct mfi_prod_cons));
   1122 	if (sc->sc_pcq == NULL) {
   1123 		aprint_error_dev(sc->sc_dev,
   1124 		    "unable to allocate reply queue memory\n");
   1125 		goto nopcq;
   1126 	}
   1127 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_pcq), 0,
   1128 	    sizeof(uint32_t) * sc->sc_max_cmds + sizeof(struct mfi_prod_cons),
   1129 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   1130 
   1131 	/* frame memory */
   1132 	frames = (sc->sc_sgl_size * sc->sc_max_sgl + MFI_FRAME_SIZE - 1) /
   1133 	    MFI_FRAME_SIZE + 1;
   1134 	sc->sc_frames_size = frames * MFI_FRAME_SIZE;
   1135 	sc->sc_frames = mfi_allocmem(sc, sc->sc_frames_size * sc->sc_max_cmds);
   1136 	if (sc->sc_frames == NULL) {
   1137 		aprint_error_dev(sc->sc_dev,
   1138 		    "unable to allocate frame memory\n");
   1139 		goto noframe;
   1140 	}
   1141 	/* XXX hack, fix this */
   1142 	if (MFIMEM_DVA(sc->sc_frames) & 0x3f) {
   1143 		aprint_error_dev(sc->sc_dev,
   1144 		    "improper frame alignment (%#llx) FIXME\n",
   1145 		    (long long int)MFIMEM_DVA(sc->sc_frames));
   1146 		goto noframe;
   1147 	}
   1148 
   1149 	/* sense memory */
   1150 	sc->sc_sense = mfi_allocmem(sc, sc->sc_max_cmds * MFI_SENSE_SIZE);
   1151 	if (sc->sc_sense == NULL) {
   1152 		aprint_error_dev(sc->sc_dev,
   1153 		    "unable to allocate sense memory\n");
   1154 		goto nosense;
   1155 	}
   1156 
   1157 	/* now that we have all memory bits go initialize ccbs */
   1158 	if (mfi_init_ccb(sc)) {
   1159 		aprint_error_dev(sc->sc_dev, "could not init ccb list\n");
   1160 		goto noinit;
   1161 	}
   1162 
   1163 	/* kickstart firmware with all addresses and pointers */
   1164 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
   1165 		if (mfi_tbolt_init_MFI_queue(sc)) {
   1166 			aprint_error_dev(sc->sc_dev,
   1167 			    "could not initialize firmware\n");
   1168 			goto noinit;
   1169 		}
   1170 	} else {
   1171 		if (mfi_initialize_firmware(sc)) {
   1172 			aprint_error_dev(sc->sc_dev,
   1173 			    "could not initialize firmware\n");
   1174 			goto noinit;
   1175 		}
   1176 	}
   1177 	sc->sc_running = true;
   1178 
   1179 	if (mfi_get_info(sc)) {
   1180 		aprint_error_dev(sc->sc_dev,
   1181 		    "could not retrieve controller information\n");
   1182 		goto noinit;
   1183 	}
   1184 	aprint_normal_dev(sc->sc_dev,
   1185 	    "%s version %s\n",
   1186 	    sc->sc_info.mci_product_name,
   1187 	    sc->sc_info.mci_package_version);
   1188 
   1189 
   1190 	aprint_normal_dev(sc->sc_dev, "logical drives %d, %dMB RAM, ",
   1191 	    sc->sc_info.mci_lds_present,
   1192 	    sc->sc_info.mci_memory_size);
   1193 	sc->sc_bbuok = false;
   1194 	if (sc->sc_info.mci_hw_present & MFI_INFO_HW_BBU) {
   1195 		struct mfi_bbu_status	bbu_stat;
   1196 		int mfi_bbu_status = mfi_get_bbu(sc, &bbu_stat);
   1197 		aprint_normal("BBU type ");
   1198 		switch (bbu_stat.battery_type) {
   1199 		case MFI_BBU_TYPE_BBU:
   1200 			aprint_normal("BBU");
   1201 			break;
   1202 		case MFI_BBU_TYPE_IBBU:
   1203 			aprint_normal("IBBU");
   1204 			break;
   1205 		default:
   1206 			aprint_normal("unknown type %d", bbu_stat.battery_type);
   1207 		}
   1208 		aprint_normal(", status ");
   1209 		switch (mfi_bbu_status) {
   1210 		case MFI_BBU_GOOD:
   1211 			aprint_normal("good\n");
   1212 			sc->sc_bbuok = true;
   1213 			break;
   1214 		case MFI_BBU_BAD:
   1215 			aprint_normal("bad\n");
   1216 			break;
   1217 		case MFI_BBU_UNKNOWN:
   1218 			aprint_normal("unknown\n");
   1219 			break;
   1220 		default:
   1221 			panic("mfi_bbu_status");
   1222 		}
   1223 	} else {
   1224 		aprint_normal("BBU not present\n");
   1225 	}
   1226 
   1227 	sc->sc_ld_cnt = sc->sc_info.mci_lds_present;
   1228 	sc->sc_max_ld = sc->sc_ld_cnt;
   1229 	for (i = 0; i < sc->sc_ld_cnt; i++)
   1230 		sc->sc_ld[i].ld_present = 1;
   1231 
   1232 	memset(adapt, 0, sizeof(*adapt));
   1233 	adapt->adapt_dev = sc->sc_dev;
   1234 	adapt->adapt_nchannels = 1;
   1235 	/* keep a few commands for management */
   1236 	if (sc->sc_max_cmds > 4)
   1237 		adapt->adapt_openings = sc->sc_max_cmds - 4;
   1238 	else
   1239 		adapt->adapt_openings = sc->sc_max_cmds;
   1240 	adapt->adapt_max_periph = adapt->adapt_openings;
   1241 	adapt->adapt_request = mfi_scsipi_request;
   1242 	adapt->adapt_minphys = mfiminphys;
   1243 
   1244 	memset(chan, 0, sizeof(*chan));
   1245 	chan->chan_adapter = adapt;
   1246 	chan->chan_bustype = &scsi_sas_bustype;
   1247 	chan->chan_channel = 0;
   1248 	chan->chan_flags = 0;
   1249 	chan->chan_nluns = 8;
   1250 	chan->chan_ntargets = MFI_MAX_LD;
   1251 	chan->chan_id = MFI_MAX_LD;
   1252 
   1253 	mfi_rescan(sc->sc_dev, NULL, NULL);
   1254 
   1255 	/* enable interrupts */
   1256 	mfi_intr_enable(sc);
   1257 
   1258 #if NBIO > 0
   1259 	if (bio_register(sc->sc_dev, mfi_ioctl) != 0)
   1260 		panic("%s: controller registration failed", DEVNAME(sc));
   1261 	if (mfi_create_sensors(sc) != 0)
   1262 		aprint_error_dev(sc->sc_dev, "unable to create sensors\n");
   1263 #endif /* NBIO > 0 */
   1264 	if (!pmf_device_register1(sc->sc_dev, mfi_suspend, mfi_resume,
   1265 	    mfi_shutdown)) {
   1266 		aprint_error_dev(sc->sc_dev,
   1267 		    "couldn't establish power handler\n");
   1268 	}
   1269 
   1270 	return 0;
   1271 noinit:
   1272 	mfi_freemem(sc, &sc->sc_sense);
   1273 nosense:
   1274 	mfi_freemem(sc, &sc->sc_frames);
   1275 noframe:
   1276 	mfi_freemem(sc, &sc->sc_pcq);
   1277 nopcq:
   1278 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
   1279 		if (sc->sc_tbolt_reqmsgpool)
   1280 			mfi_freemem(sc, &sc->sc_tbolt_reqmsgpool);
   1281 		if (sc->sc_tbolt_verbuf)
   1282 			mfi_freemem(sc, &sc->sc_tbolt_verbuf);
   1283 	}
   1284 	return 1;
   1285 }
   1286 
   1287 static int
   1288 mfi_poll(struct mfi_ccb *ccb)
   1289 {
   1290 	struct mfi_softc *sc = ccb->ccb_sc;
   1291 	struct mfi_frame_header	*hdr;
   1292 	int			to = 0;
   1293 	int			rv = 0;
   1294 
   1295 	DNPRINTF(MFI_D_CMD, "%s: mfi_poll\n", DEVNAME(sc));
   1296 
   1297 	hdr = &ccb->ccb_frame->mfr_header;
   1298 	hdr->mfh_cmd_status = 0xff;
   1299 	if (!sc->sc_MFA_enabled)
   1300 		hdr->mfh_flags |= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE;
   1301 
   1302 	/* no callback, caller is supposed to do the cleanup */
   1303 	ccb->ccb_done = NULL;
   1304 
   1305 	mfi_post(sc, ccb);
   1306 	if (sc->sc_MFA_enabled) {
   1307 		/*
   1308 		 * depending on the command type, result may be posted
   1309 		 * to *hdr, or not. In addition it seems there's
   1310 		 * no way to avoid posting the SMID to the reply queue.
   1311 		 * So pool using the interrupt routine.
   1312 		 */
   1313 		 while (ccb->ccb_state != MFI_CCB_DONE) {
   1314 			delay(1000);
   1315 			if (to++ > 5000) { /* XXX 5 seconds busywait sucks */
   1316 				rv = 1;
   1317 				break;
   1318 			}
   1319 			mfi_tbolt_intrh(sc);
   1320 		 }
   1321 	} else {
   1322 		bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_frames),
   1323 		    ccb->ccb_pframe - MFIMEM_DVA(sc->sc_frames),
   1324 		    sc->sc_frames_size, BUS_DMASYNC_POSTREAD);
   1325 
   1326 		while (hdr->mfh_cmd_status == 0xff) {
   1327 			delay(1000);
   1328 			if (to++ > 5000) { /* XXX 5 seconds busywait sucks */
   1329 				rv = 1;
   1330 				break;
   1331 			}
   1332 			bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_frames),
   1333 			    ccb->ccb_pframe - MFIMEM_DVA(sc->sc_frames),
   1334 			    sc->sc_frames_size, BUS_DMASYNC_POSTREAD);
   1335 		}
   1336 	}
   1337 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_frames),
   1338 	    ccb->ccb_pframe - MFIMEM_DVA(sc->sc_frames),
   1339 	    sc->sc_frames_size, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
   1340 
   1341 	if (ccb->ccb_data != NULL) {
   1342 		DNPRINTF(MFI_D_INTR, "%s: mfi_mgmt_done sync\n",
   1343 		    DEVNAME(sc));
   1344 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   1345 		    ccb->ccb_dmamap->dm_mapsize,
   1346 		    (ccb->ccb_direction & MFI_DATA_IN) ?
   1347 		    BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
   1348 
   1349 		bus_dmamap_unload(sc->sc_datadmat, ccb->ccb_dmamap);
   1350 	}
   1351 
   1352 	if (rv != 0) {
   1353 		aprint_error_dev(sc->sc_dev, "timeout on ccb %d\n",
   1354 		    hdr->mfh_context);
   1355 		ccb->ccb_flags |= MFI_CCB_F_ERR;
   1356 		return 1;
   1357 	}
   1358 
   1359 	return 0;
   1360 }
   1361 
   1362 int
   1363 mfi_intr(void *arg)
   1364 {
   1365 	struct mfi_softc	*sc = arg;
   1366 	struct mfi_prod_cons	*pcq;
   1367 	struct mfi_ccb		*ccb;
   1368 	uint32_t		producer, consumer, ctx;
   1369 	int			claimed = 0;
   1370 
   1371 	if (!mfi_my_intr(sc))
   1372 		return 0;
   1373 
   1374 	pcq = MFIMEM_KVA(sc->sc_pcq);
   1375 
   1376 	DNPRINTF(MFI_D_INTR, "%s: mfi_intr %p %p\n", DEVNAME(sc), sc, pcq);
   1377 
   1378 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_pcq), 0,
   1379 	    sizeof(uint32_t) * sc->sc_max_cmds + sizeof(struct mfi_prod_cons),
   1380 	    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
   1381 
   1382 	producer = pcq->mpc_producer;
   1383 	consumer = pcq->mpc_consumer;
   1384 
   1385 	while (consumer != producer) {
   1386 		DNPRINTF(MFI_D_INTR, "%s: mfi_intr pi %#x ci %#x\n",
   1387 		    DEVNAME(sc), producer, consumer);
   1388 
   1389 		ctx = pcq->mpc_reply_q[consumer];
   1390 		pcq->mpc_reply_q[consumer] = MFI_INVALID_CTX;
   1391 		if (ctx == MFI_INVALID_CTX)
   1392 			aprint_error_dev(sc->sc_dev,
   1393 			    "invalid context, p: %d c: %d\n",
   1394 			    producer, consumer);
   1395 		else {
   1396 			/* XXX remove from queue and call scsi_done */
   1397 			ccb = &sc->sc_ccb[ctx];
   1398 			DNPRINTF(MFI_D_INTR, "%s: mfi_intr context %#x\n",
   1399 			    DEVNAME(sc), ctx);
   1400 			bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_frames),
   1401 			    ccb->ccb_pframe - MFIMEM_DVA(sc->sc_frames),
   1402 			    sc->sc_frames_size,
   1403 			    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
   1404 			ccb->ccb_done(ccb);
   1405 
   1406 			claimed = 1;
   1407 		}
   1408 		consumer++;
   1409 		if (consumer == (sc->sc_max_cmds + 1))
   1410 			consumer = 0;
   1411 	}
   1412 
   1413 	pcq->mpc_consumer = consumer;
   1414 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_pcq), 0,
   1415 	    sizeof(uint32_t) * sc->sc_max_cmds + sizeof(struct mfi_prod_cons),
   1416 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   1417 
   1418 	return claimed;
   1419 }
   1420 
   1421 static int
   1422 mfi_scsi_ld_io(struct mfi_ccb *ccb, struct scsipi_xfer *xs, uint64_t blockno,
   1423     uint32_t blockcnt)
   1424 {
   1425 	struct scsipi_periph *periph = xs->xs_periph;
   1426 	struct mfi_io_frame   *io;
   1427 
   1428 	DNPRINTF(MFI_D_CMD, "%s: mfi_scsi_ld_io: %d\n",
   1429 	    device_xname(periph->periph_channel->chan_adapter->adapt_dev),
   1430 	    periph->periph_target);
   1431 
   1432 	if (!xs->data)
   1433 		return 1;
   1434 
   1435 	io = &ccb->ccb_frame->mfr_io;
   1436 	if (xs->xs_control & XS_CTL_DATA_IN) {
   1437 		io->mif_header.mfh_cmd = MFI_CMD_LD_READ;
   1438 		ccb->ccb_direction = MFI_DATA_IN;
   1439 	} else {
   1440 		io->mif_header.mfh_cmd = MFI_CMD_LD_WRITE;
   1441 		ccb->ccb_direction = MFI_DATA_OUT;
   1442 	}
   1443 	io->mif_header.mfh_target_id = periph->periph_target;
   1444 	io->mif_header.mfh_timeout = 0;
   1445 	io->mif_header.mfh_flags = 0;
   1446 	io->mif_header.mfh_sense_len = MFI_SENSE_SIZE;
   1447 	io->mif_header.mfh_data_len= blockcnt;
   1448 	io->mif_lba_hi = (blockno >> 32);
   1449 	io->mif_lba_lo = (blockno & 0xffffffff);
   1450 	io->mif_sense_addr_lo = htole32(ccb->ccb_psense);
   1451 	io->mif_sense_addr_hi = 0;
   1452 
   1453 	ccb->ccb_done = mfi_scsi_ld_done;
   1454 	ccb->ccb_xs = xs;
   1455 	ccb->ccb_frame_size = MFI_IO_FRAME_SIZE;
   1456 	ccb->ccb_sgl = &io->mif_sgl;
   1457 	ccb->ccb_data = xs->data;
   1458 	ccb->ccb_len = xs->datalen;
   1459 
   1460 	if (mfi_create_sgl(ccb, (xs->xs_control & XS_CTL_NOSLEEP) ?
   1461 	    BUS_DMA_NOWAIT : BUS_DMA_WAITOK))
   1462 		return 1;
   1463 
   1464 	return 0;
   1465 }
   1466 
   1467 static void
   1468 mfi_scsi_ld_done(struct mfi_ccb *ccb)
   1469 {
   1470 	struct mfi_frame_header	*hdr = &ccb->ccb_frame->mfr_header;
   1471 	mfi_scsi_xs_done(ccb, hdr->mfh_cmd_status, hdr->mfh_scsi_status);
   1472 }
   1473 
   1474 static void
   1475 mfi_scsi_xs_done(struct mfi_ccb *ccb, int status, int scsi_status)
   1476 {
   1477 	struct scsipi_xfer	*xs = ccb->ccb_xs;
   1478 	struct mfi_softc	*sc = ccb->ccb_sc;
   1479 
   1480 	DNPRINTF(MFI_D_INTR, "%s: mfi_scsi_xs_done %p %p\n",
   1481 	    DEVNAME(sc), ccb, ccb->ccb_frame);
   1482 
   1483 	if (xs->data != NULL) {
   1484 		DNPRINTF(MFI_D_INTR, "%s: mfi_scsi_xs_done sync\n",
   1485 		    DEVNAME(sc));
   1486 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   1487 		    ccb->ccb_dmamap->dm_mapsize,
   1488 		    (xs->xs_control & XS_CTL_DATA_IN) ?
   1489 		    BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
   1490 
   1491 		bus_dmamap_unload(sc->sc_datadmat, ccb->ccb_dmamap);
   1492 	}
   1493 
   1494 	if (status != MFI_STAT_OK) {
   1495 		xs->error = XS_DRIVER_STUFFUP;
   1496 		DNPRINTF(MFI_D_INTR, "%s: mfi_scsi_xs_done stuffup %#x\n",
   1497 		    DEVNAME(sc), status);
   1498 
   1499 		if (scsi_status != 0) {
   1500 			bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_sense),
   1501 			    ccb->ccb_psense - MFIMEM_DVA(sc->sc_sense),
   1502 			    MFI_SENSE_SIZE, BUS_DMASYNC_POSTREAD);
   1503 			DNPRINTF(MFI_D_INTR,
   1504 			    "%s: mfi_scsi_xs_done sense %#x %p %p\n",
   1505 			    DEVNAME(sc), scsi_status,
   1506 			    &xs->sense, ccb->ccb_sense);
   1507 			memset(&xs->sense, 0, sizeof(xs->sense));
   1508 			memcpy(&xs->sense, ccb->ccb_sense,
   1509 			    sizeof(struct scsi_sense_data));
   1510 			xs->error = XS_SENSE;
   1511 		}
   1512 	} else {
   1513 		xs->error = XS_NOERROR;
   1514 		xs->status = SCSI_OK;
   1515 		xs->resid = 0;
   1516 	}
   1517 
   1518 	mfi_put_ccb(ccb);
   1519 	scsipi_done(xs);
   1520 }
   1521 
   1522 static int
   1523 mfi_scsi_ld(struct mfi_ccb *ccb, struct scsipi_xfer *xs)
   1524 {
   1525 	struct mfi_pass_frame	*pf;
   1526 	struct scsipi_periph *periph = xs->xs_periph;
   1527 
   1528 	DNPRINTF(MFI_D_CMD, "%s: mfi_scsi_ld: %d\n",
   1529 	    device_xname(periph->periph_channel->chan_adapter->adapt_dev),
   1530 	    periph->periph_target);
   1531 
   1532 	pf = &ccb->ccb_frame->mfr_pass;
   1533 	pf->mpf_header.mfh_cmd = MFI_CMD_LD_SCSI_IO;
   1534 	pf->mpf_header.mfh_target_id = periph->periph_target;
   1535 	pf->mpf_header.mfh_lun_id = 0;
   1536 	pf->mpf_header.mfh_cdb_len = xs->cmdlen;
   1537 	pf->mpf_header.mfh_timeout = 0;
   1538 	pf->mpf_header.mfh_data_len= xs->datalen; /* XXX */
   1539 	pf->mpf_header.mfh_sense_len = MFI_SENSE_SIZE;
   1540 
   1541 	pf->mpf_sense_addr_hi = 0;
   1542 	pf->mpf_sense_addr_lo = htole32(ccb->ccb_psense);
   1543 
   1544 	memset(pf->mpf_cdb, 0, 16);
   1545 	memcpy(pf->mpf_cdb, &xs->cmdstore, xs->cmdlen);
   1546 
   1547 	ccb->ccb_done = mfi_scsi_ld_done;
   1548 	ccb->ccb_xs = xs;
   1549 	ccb->ccb_frame_size = MFI_PASS_FRAME_SIZE;
   1550 	ccb->ccb_sgl = &pf->mpf_sgl;
   1551 
   1552 	if (xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT))
   1553 		ccb->ccb_direction = (xs->xs_control & XS_CTL_DATA_IN) ?
   1554 		    MFI_DATA_IN : MFI_DATA_OUT;
   1555 	else
   1556 		ccb->ccb_direction = MFI_DATA_NONE;
   1557 
   1558 	if (xs->data) {
   1559 		ccb->ccb_data = xs->data;
   1560 		ccb->ccb_len = xs->datalen;
   1561 
   1562 		if (mfi_create_sgl(ccb, (xs->xs_control & XS_CTL_NOSLEEP) ?
   1563 		    BUS_DMA_NOWAIT : BUS_DMA_WAITOK))
   1564 			return 1;
   1565 	}
   1566 
   1567 	return 0;
   1568 }
   1569 
   1570 static void
   1571 mfi_scsipi_request(struct scsipi_channel *chan, scsipi_adapter_req_t req,
   1572     void *arg)
   1573 {
   1574 	struct scsipi_periph	*periph;
   1575 	struct scsipi_xfer	*xs;
   1576 	struct scsipi_adapter	*adapt = chan->chan_adapter;
   1577 	struct mfi_softc	*sc = device_private(adapt->adapt_dev);
   1578 	struct mfi_ccb		*ccb;
   1579 	struct scsi_rw_6	*rw;
   1580 	struct scsipi_rw_10	*rwb;
   1581 	struct scsipi_rw_12	*rw12;
   1582 	struct scsipi_rw_16	*rw16;
   1583 	union mfi_mbox		mbox;
   1584 	uint64_t		blockno;
   1585 	uint32_t		blockcnt;
   1586 	uint8_t			target;
   1587 	int			s;
   1588 
   1589 	switch (req) {
   1590 	case ADAPTER_REQ_GROW_RESOURCES:
   1591 		/* Not supported. */
   1592 		return;
   1593 	case ADAPTER_REQ_SET_XFER_MODE:
   1594 	{
   1595 		struct scsipi_xfer_mode *xm = arg;
   1596 		xm->xm_mode = PERIPH_CAP_TQING;
   1597 		xm->xm_period = 0;
   1598 		xm->xm_offset = 0;
   1599 		scsipi_async_event(&sc->sc_chan, ASYNC_EVENT_XFER_MODE, xm);
   1600 		return;
   1601 	}
   1602 	case ADAPTER_REQ_RUN_XFER:
   1603 		break;
   1604 	}
   1605 
   1606 	xs = arg;
   1607 
   1608 	periph = xs->xs_periph;
   1609 	target = periph->periph_target;
   1610 
   1611 	DNPRINTF(MFI_D_CMD, "%s: mfi_scsipi_request req %d opcode: %#x "
   1612 	    "target %d lun %d\n", DEVNAME(sc), req, xs->cmd->opcode,
   1613 	    periph->periph_target, periph->periph_lun);
   1614 
   1615 	s = splbio();
   1616 	if (target >= MFI_MAX_LD || !sc->sc_ld[target].ld_present ||
   1617 	    periph->periph_lun != 0) {
   1618 		DNPRINTF(MFI_D_CMD, "%s: invalid target %d\n",
   1619 		    DEVNAME(sc), target);
   1620 		xs->error = XS_SELTIMEOUT;
   1621 		scsipi_done(xs);
   1622 		splx(s);
   1623 		return;
   1624 	}
   1625 	if ((xs->cmd->opcode == SCSI_SYNCHRONIZE_CACHE_10 ||
   1626 	    xs->cmd->opcode == SCSI_SYNCHRONIZE_CACHE_16) && sc->sc_bbuok) {
   1627 		/* the cache is stable storage, don't flush */
   1628 		xs->error = XS_NOERROR;
   1629 		xs->status = SCSI_OK;
   1630 		xs->resid = 0;
   1631 		scsipi_done(xs);
   1632 		splx(s);
   1633 		return;
   1634 	}
   1635 
   1636 	if ((ccb = mfi_get_ccb(sc)) == NULL) {
   1637 		DNPRINTF(MFI_D_CMD, "%s: mfi_scsipi_request no ccb\n", DEVNAME(sc));
   1638 		xs->error = XS_RESOURCE_SHORTAGE;
   1639 		scsipi_done(xs);
   1640 		splx(s);
   1641 		return;
   1642 	}
   1643 
   1644 	switch (xs->cmd->opcode) {
   1645 	/* IO path */
   1646 	case READ_16:
   1647 	case WRITE_16:
   1648 		rw16 = (struct scsipi_rw_16 *)xs->cmd;
   1649 		blockno = _8btol(rw16->addr);
   1650 		blockcnt = _4btol(rw16->length);
   1651 		if (sc->sc_iop->mio_ld_io(ccb, xs, blockno, blockcnt)) {
   1652 			goto stuffup;
   1653 		}
   1654 		break;
   1655 
   1656 	case READ_12:
   1657 	case WRITE_12:
   1658 		rw12 = (struct scsipi_rw_12 *)xs->cmd;
   1659 		blockno = _4btol(rw12->addr);
   1660 		blockcnt = _4btol(rw12->length);
   1661 		if (sc->sc_iop->mio_ld_io(ccb, xs, blockno, blockcnt)) {
   1662 			goto stuffup;
   1663 		}
   1664 		break;
   1665 
   1666 	case READ_10:
   1667 	case WRITE_10:
   1668 		rwb = (struct scsipi_rw_10 *)xs->cmd;
   1669 		blockno = _4btol(rwb->addr);
   1670 		blockcnt = _2btol(rwb->length);
   1671 		if (sc->sc_iop->mio_ld_io(ccb, xs, blockno, blockcnt)) {
   1672 			goto stuffup;
   1673 		}
   1674 		break;
   1675 
   1676 	case SCSI_READ_6_COMMAND:
   1677 	case SCSI_WRITE_6_COMMAND:
   1678 		rw = (struct scsi_rw_6 *)xs->cmd;
   1679 		blockno = _3btol(rw->addr) & (SRW_TOPADDR << 16 | 0xffff);
   1680 		blockcnt = rw->length ? rw->length : 0x100;
   1681 		if (sc->sc_iop->mio_ld_io(ccb, xs, blockno, blockcnt)) {
   1682 			goto stuffup;
   1683 		}
   1684 		break;
   1685 
   1686 	case SCSI_SYNCHRONIZE_CACHE_10:
   1687 	case SCSI_SYNCHRONIZE_CACHE_16:
   1688 		memset(&mbox, 0, sizeof(mbox));
   1689 		mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE;
   1690 		if (mfi_mgmt(ccb, xs,
   1691 		    MR_DCMD_CTRL_CACHE_FLUSH, MFI_DATA_NONE, 0, NULL, &mbox)) {
   1692 			goto stuffup;
   1693 		}
   1694 		break;
   1695 
   1696 	/* hand it of to the firmware and let it deal with it */
   1697 	case SCSI_TEST_UNIT_READY:
   1698 		/* save off sd? after autoconf */
   1699 		if (!cold)	/* XXX bogus */
   1700 			strlcpy(sc->sc_ld[target].ld_dev, device_xname(sc->sc_dev),
   1701 			    sizeof(sc->sc_ld[target].ld_dev));
   1702 		/* FALLTHROUGH */
   1703 
   1704 	default:
   1705 		if (mfi_scsi_ld(ccb, xs)) {
   1706 			goto stuffup;
   1707 		}
   1708 		break;
   1709 	}
   1710 
   1711 	DNPRINTF(MFI_D_CMD, "%s: start io %d\n", DEVNAME(sc), target);
   1712 
   1713 	if (xs->xs_control & XS_CTL_POLL) {
   1714 		if (mfi_poll(ccb)) {
   1715 			/* XXX check for sense in ccb->ccb_sense? */
   1716 			aprint_error_dev(sc->sc_dev,
   1717 			    "mfi_scsipi_request poll failed\n");
   1718 			memset(&xs->sense, 0, sizeof(xs->sense));
   1719 			xs->sense.scsi_sense.response_code =
   1720 			    SSD_RCODE_VALID | SSD_RCODE_CURRENT;
   1721 			xs->sense.scsi_sense.flags = SKEY_ILLEGAL_REQUEST;
   1722 			xs->sense.scsi_sense.asc = 0x20; /* invalid opcode */
   1723 			xs->error = XS_SENSE;
   1724 			xs->status = SCSI_CHECK;
   1725 		} else {
   1726 			DNPRINTF(MFI_D_DMA,
   1727 			    "%s: mfi_scsipi_request poll complete %d\n",
   1728 			    DEVNAME(sc), ccb->ccb_dmamap->dm_nsegs);
   1729 			xs->error = XS_NOERROR;
   1730 			xs->status = SCSI_OK;
   1731 			xs->resid = 0;
   1732 		}
   1733 		mfi_put_ccb(ccb);
   1734 		scsipi_done(xs);
   1735 		splx(s);
   1736 		return;
   1737 	}
   1738 
   1739 	mfi_post(sc, ccb);
   1740 
   1741 	DNPRINTF(MFI_D_DMA, "%s: mfi_scsipi_request queued %d\n", DEVNAME(sc),
   1742 	    ccb->ccb_dmamap->dm_nsegs);
   1743 
   1744 	splx(s);
   1745 	return;
   1746 
   1747 stuffup:
   1748 	mfi_put_ccb(ccb);
   1749 	xs->error = XS_DRIVER_STUFFUP;
   1750 	scsipi_done(xs);
   1751 	splx(s);
   1752 }
   1753 
   1754 static int
   1755 mfi_create_sgl(struct mfi_ccb *ccb, int flags)
   1756 {
   1757 	struct mfi_softc	*sc = ccb->ccb_sc;
   1758 	struct mfi_frame_header	*hdr;
   1759 	bus_dma_segment_t	*sgd;
   1760 	union mfi_sgl		*sgl;
   1761 	int			error, i;
   1762 
   1763 	DNPRINTF(MFI_D_DMA, "%s: mfi_create_sgl %p\n", DEVNAME(sc),
   1764 	    ccb->ccb_data);
   1765 
   1766 	if (!ccb->ccb_data)
   1767 		return 1;
   1768 
   1769 	KASSERT(flags == BUS_DMA_NOWAIT || !cpu_intr_p());
   1770 	error = bus_dmamap_load(sc->sc_datadmat, ccb->ccb_dmamap,
   1771 	    ccb->ccb_data, ccb->ccb_len, NULL, flags);
   1772 	if (error) {
   1773 		if (error == EFBIG) {
   1774 			aprint_error_dev(sc->sc_dev, "more than %d dma segs\n",
   1775 			    sc->sc_max_sgl);
   1776 		} else {
   1777 			aprint_error_dev(sc->sc_dev,
   1778 			    "error %d loading dma map\n", error);
   1779 		}
   1780 		return 1;
   1781 	}
   1782 
   1783 	hdr = &ccb->ccb_frame->mfr_header;
   1784 	sgl = ccb->ccb_sgl;
   1785 	sgd = ccb->ccb_dmamap->dm_segs;
   1786 	for (i = 0; i < ccb->ccb_dmamap->dm_nsegs; i++) {
   1787 		if (((sc->sc_ioptype == MFI_IOP_SKINNY) ||
   1788 			(sc->sc_ioptype == MFI_IOP_TBOLT)) &&
   1789 		    (hdr->mfh_cmd == MFI_CMD_PD_SCSI_IO ||
   1790 		     hdr->mfh_cmd == MFI_CMD_LD_READ ||
   1791 		     hdr->mfh_cmd == MFI_CMD_LD_WRITE)) {
   1792 			sgl->sg_ieee[i].addr = htole64(sgd[i].ds_addr);
   1793 			sgl->sg_ieee[i].len = htole32(sgd[i].ds_len);
   1794 			sgl->sg_ieee[i].flags = 0;
   1795 			DNPRINTF(MFI_D_DMA, "%s: addr: %#" PRIx64 " len: %#"
   1796 			    PRIx32 "\n",
   1797 			    DEVNAME(sc), sgl->sg64[i].addr, sgl->sg64[i].len);
   1798 			hdr->mfh_flags |= MFI_FRAME_IEEE_SGL | MFI_FRAME_SGL64;
   1799 		} else if (sc->sc_64bit_dma) {
   1800 			sgl->sg64[i].addr = htole64(sgd[i].ds_addr);
   1801 			sgl->sg64[i].len = htole32(sgd[i].ds_len);
   1802 			DNPRINTF(MFI_D_DMA, "%s: addr: %#" PRIx64 " len: %#"
   1803 			    PRIx32 "\n",
   1804 			    DEVNAME(sc), sgl->sg64[i].addr, sgl->sg64[i].len);
   1805 			hdr->mfh_flags |= MFI_FRAME_SGL64;
   1806 		} else {
   1807 			sgl->sg32[i].addr = htole32(sgd[i].ds_addr);
   1808 			sgl->sg32[i].len = htole32(sgd[i].ds_len);
   1809 			DNPRINTF(MFI_D_DMA, "%s: addr: %#x  len: %#x\n",
   1810 			    DEVNAME(sc), sgl->sg32[i].addr, sgl->sg32[i].len);
   1811 			hdr->mfh_flags |= MFI_FRAME_SGL32;
   1812 		}
   1813 	}
   1814 
   1815 	if (ccb->ccb_direction == MFI_DATA_IN) {
   1816 		hdr->mfh_flags |= MFI_FRAME_DIR_READ;
   1817 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   1818 		    ccb->ccb_dmamap->dm_mapsize, BUS_DMASYNC_PREREAD);
   1819 	} else {
   1820 		hdr->mfh_flags |= MFI_FRAME_DIR_WRITE;
   1821 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   1822 		    ccb->ccb_dmamap->dm_mapsize, BUS_DMASYNC_PREWRITE);
   1823 	}
   1824 
   1825 	hdr->mfh_sg_count = ccb->ccb_dmamap->dm_nsegs;
   1826 	ccb->ccb_frame_size += sc->sc_sgl_size * ccb->ccb_dmamap->dm_nsegs;
   1827 	ccb->ccb_extra_frames = (ccb->ccb_frame_size - 1) / MFI_FRAME_SIZE;
   1828 
   1829 	DNPRINTF(MFI_D_DMA, "%s: sg_count: %d  frame_size: %d  frames_size: %d"
   1830 	    "  dm_nsegs: %d  extra_frames: %d\n",
   1831 	    DEVNAME(sc),
   1832 	    hdr->mfh_sg_count,
   1833 	    ccb->ccb_frame_size,
   1834 	    sc->sc_frames_size,
   1835 	    ccb->ccb_dmamap->dm_nsegs,
   1836 	    ccb->ccb_extra_frames);
   1837 
   1838 	return 0;
   1839 }
   1840 
   1841 static int
   1842 mfi_mgmt_internal(struct mfi_softc *sc, uint32_t opc, uint32_t dir,
   1843     uint32_t len, void *buf, const union mfi_mbox *mbox, bool poll)
   1844 {
   1845 	struct mfi_ccb		*ccb;
   1846 	int			rv = 1;
   1847 
   1848 	if ((ccb = mfi_get_ccb(sc)) == NULL)
   1849 		return rv;
   1850 	rv = mfi_mgmt(ccb, NULL, opc, dir, len, buf, mbox);
   1851 	if (rv)
   1852 		return rv;
   1853 
   1854 	if (poll) {
   1855 		rv = 1;
   1856 		if (mfi_poll(ccb))
   1857 			goto done;
   1858 	} else {
   1859 		mfi_post(sc, ccb);
   1860 
   1861 		DNPRINTF(MFI_D_MISC, "%s: mfi_mgmt_internal sleeping\n",
   1862 		    DEVNAME(sc));
   1863 		while (ccb->ccb_state != MFI_CCB_DONE)
   1864 			tsleep(ccb, PRIBIO, "mfi_mgmt", 0);
   1865 
   1866 		if (ccb->ccb_flags & MFI_CCB_F_ERR)
   1867 			goto done;
   1868 	}
   1869 	rv = 0;
   1870 
   1871 done:
   1872 	mfi_put_ccb(ccb);
   1873 	return rv;
   1874 }
   1875 
   1876 static int
   1877 mfi_mgmt(struct mfi_ccb *ccb, struct scsipi_xfer *xs, uint32_t opc,
   1878     uint32_t dir, uint32_t len, void *buf, const union mfi_mbox *mbox)
   1879 {
   1880 	struct mfi_dcmd_frame	*dcmd;
   1881 
   1882 	DNPRINTF(MFI_D_MISC, "%s: mfi_mgmt %#x\n", DEVNAME(ccb->ccb_sc), opc);
   1883 
   1884 	dcmd = &ccb->ccb_frame->mfr_dcmd;
   1885 	memset(dcmd->mdf_mbox.b, 0, MFI_MBOX_SIZE);
   1886 	dcmd->mdf_header.mfh_cmd = MFI_CMD_DCMD;
   1887 	dcmd->mdf_header.mfh_timeout = 0;
   1888 
   1889 	dcmd->mdf_opcode = opc;
   1890 	dcmd->mdf_header.mfh_data_len = 0;
   1891 	ccb->ccb_direction = dir;
   1892 	ccb->ccb_xs = xs;
   1893 	ccb->ccb_done = mfi_mgmt_done;
   1894 
   1895 	ccb->ccb_frame_size = MFI_DCMD_FRAME_SIZE;
   1896 
   1897 	/* handle special opcodes */
   1898 	if (mbox)
   1899 		memcpy(dcmd->mdf_mbox.b, mbox, MFI_MBOX_SIZE);
   1900 
   1901 	if (dir != MFI_DATA_NONE) {
   1902 		dcmd->mdf_header.mfh_data_len = len;
   1903 		ccb->ccb_data = buf;
   1904 		ccb->ccb_len = len;
   1905 		ccb->ccb_sgl = &dcmd->mdf_sgl;
   1906 
   1907 		if (mfi_create_sgl(ccb, BUS_DMA_WAITOK))
   1908 			return 1;
   1909 	}
   1910 	return 0;
   1911 }
   1912 
   1913 static void
   1914 mfi_mgmt_done(struct mfi_ccb *ccb)
   1915 {
   1916 	struct scsipi_xfer	*xs = ccb->ccb_xs;
   1917 	struct mfi_softc	*sc = ccb->ccb_sc;
   1918 	struct mfi_frame_header	*hdr = &ccb->ccb_frame->mfr_header;
   1919 
   1920 	DNPRINTF(MFI_D_INTR, "%s: mfi_mgmt_done %#lx %#lx\n",
   1921 	    DEVNAME(sc), (u_long)ccb, (u_long)ccb->ccb_frame);
   1922 
   1923 	if (ccb->ccb_data != NULL) {
   1924 		DNPRINTF(MFI_D_INTR, "%s: mfi_mgmt_done sync\n",
   1925 		    DEVNAME(sc));
   1926 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   1927 		    ccb->ccb_dmamap->dm_mapsize,
   1928 		    (ccb->ccb_direction & MFI_DATA_IN) ?
   1929 		    BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
   1930 
   1931 		bus_dmamap_unload(sc->sc_datadmat, ccb->ccb_dmamap);
   1932 	}
   1933 
   1934 	if (hdr->mfh_cmd_status != MFI_STAT_OK)
   1935 		ccb->ccb_flags |= MFI_CCB_F_ERR;
   1936 
   1937 	ccb->ccb_state = MFI_CCB_DONE;
   1938 	if (xs) {
   1939 		if (hdr->mfh_cmd_status != MFI_STAT_OK) {
   1940 			xs->error = XS_DRIVER_STUFFUP;
   1941 		} else {
   1942 			xs->error = XS_NOERROR;
   1943 			xs->status = SCSI_OK;
   1944 			xs->resid = 0;
   1945 		}
   1946 		mfi_put_ccb(ccb);
   1947 		scsipi_done(xs);
   1948 	} else
   1949 		wakeup(ccb);
   1950 }
   1951 
   1952 #if NBIO > 0
   1953 int
   1954 mfi_ioctl(device_t dev, u_long cmd, void *addr)
   1955 {
   1956 	struct mfi_softc *sc = device_private(dev);
   1957 	int error = 0;
   1958 	int s;
   1959 
   1960 	KERNEL_LOCK(1, curlwp);
   1961 	s = splbio();
   1962 
   1963 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl ", DEVNAME(sc));
   1964 
   1965 	switch (cmd) {
   1966 	case BIOCINQ:
   1967 		DNPRINTF(MFI_D_IOCTL, "inq\n");
   1968 		error = mfi_ioctl_inq(sc, (struct bioc_inq *)addr);
   1969 		break;
   1970 
   1971 	case BIOCVOL:
   1972 		DNPRINTF(MFI_D_IOCTL, "vol\n");
   1973 		error = mfi_ioctl_vol(sc, (struct bioc_vol *)addr);
   1974 		break;
   1975 
   1976 	case BIOCDISK:
   1977 		DNPRINTF(MFI_D_IOCTL, "disk\n");
   1978 		error = mfi_ioctl_disk(sc, (struct bioc_disk *)addr);
   1979 		break;
   1980 
   1981 	case BIOCALARM:
   1982 		DNPRINTF(MFI_D_IOCTL, "alarm\n");
   1983 		error = mfi_ioctl_alarm(sc, (struct bioc_alarm *)addr);
   1984 		break;
   1985 
   1986 	case BIOCBLINK:
   1987 		DNPRINTF(MFI_D_IOCTL, "blink\n");
   1988 		error = mfi_ioctl_blink(sc, (struct bioc_blink *)addr);
   1989 		break;
   1990 
   1991 	case BIOCSETSTATE:
   1992 		DNPRINTF(MFI_D_IOCTL, "setstate\n");
   1993 		error = mfi_ioctl_setstate(sc, (struct bioc_setstate *)addr);
   1994 		break;
   1995 
   1996 	default:
   1997 		DNPRINTF(MFI_D_IOCTL, " invalid ioctl\n");
   1998 		error = EINVAL;
   1999 	}
   2000 	splx(s);
   2001 	KERNEL_UNLOCK_ONE(curlwp);
   2002 
   2003 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl return %x\n", DEVNAME(sc), error);
   2004 	return error;
   2005 }
   2006 
   2007 static int
   2008 mfi_ioctl_inq(struct mfi_softc *sc, struct bioc_inq *bi)
   2009 {
   2010 	struct mfi_conf		*cfg;
   2011 	int			rv = EINVAL;
   2012 
   2013 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_inq\n", DEVNAME(sc));
   2014 
   2015 	if (mfi_get_info(sc)) {
   2016 		DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_inq failed\n",
   2017 		    DEVNAME(sc));
   2018 		return EIO;
   2019 	}
   2020 
   2021 	/* get figures */
   2022 	cfg = malloc(sizeof *cfg, M_DEVBUF, M_WAITOK);
   2023 	if (mfi_mgmt_internal(sc, MR_DCMD_CONF_GET, MFI_DATA_IN,
   2024 	    sizeof *cfg, cfg, NULL, false))
   2025 		goto freeme;
   2026 
   2027 	strlcpy(bi->bi_dev, DEVNAME(sc), sizeof(bi->bi_dev));
   2028 	bi->bi_novol = cfg->mfc_no_ld + cfg->mfc_no_hs;
   2029 	bi->bi_nodisk = sc->sc_info.mci_pd_disks_present;
   2030 
   2031 	rv = 0;
   2032 freeme:
   2033 	free(cfg, M_DEVBUF);
   2034 	return rv;
   2035 }
   2036 
   2037 static int
   2038 mfi_ioctl_vol(struct mfi_softc *sc, struct bioc_vol *bv)
   2039 {
   2040 	int			i, per, rv = EINVAL;
   2041 	union mfi_mbox		mbox;
   2042 
   2043 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_vol %#x\n",
   2044 	    DEVNAME(sc), bv->bv_volid);
   2045 
   2046 	if (mfi_mgmt_internal(sc, MR_DCMD_LD_GET_LIST, MFI_DATA_IN,
   2047 	    sizeof(sc->sc_ld_list), &sc->sc_ld_list, NULL, false))
   2048 		goto done;
   2049 
   2050 	i = bv->bv_volid;
   2051 	memset(&mbox, 0, sizeof(mbox));
   2052 	mbox.b[0] = sc->sc_ld_list.mll_list[i].mll_ld.mld_target;
   2053 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_vol target %#x\n",
   2054 	    DEVNAME(sc), mbox.b[0]);
   2055 
   2056 	if (mfi_mgmt_internal(sc, MR_DCMD_LD_GET_INFO, MFI_DATA_IN,
   2057 	    sizeof(sc->sc_ld_details), &sc->sc_ld_details, &mbox, false))
   2058 		goto done;
   2059 
   2060 	if (bv->bv_volid >= sc->sc_ld_list.mll_no_ld) {
   2061 		/* go do hotspares */
   2062 		rv = mfi_bio_hs(sc, bv->bv_volid, MFI_MGMT_VD, bv);
   2063 		goto done;
   2064 	}
   2065 
   2066 	strlcpy(bv->bv_dev, sc->sc_ld[i].ld_dev, sizeof(bv->bv_dev));
   2067 
   2068 	switch (sc->sc_ld_list.mll_list[i].mll_state) {
   2069 	case MFI_LD_OFFLINE:
   2070 		bv->bv_status = BIOC_SVOFFLINE;
   2071 		break;
   2072 
   2073 	case MFI_LD_PART_DEGRADED:
   2074 	case MFI_LD_DEGRADED:
   2075 		bv->bv_status = BIOC_SVDEGRADED;
   2076 		break;
   2077 
   2078 	case MFI_LD_ONLINE:
   2079 		bv->bv_status = BIOC_SVONLINE;
   2080 		break;
   2081 
   2082 	default:
   2083 		bv->bv_status = BIOC_SVINVALID;
   2084 		DNPRINTF(MFI_D_IOCTL, "%s: invalid logical disk state %#x\n",
   2085 		    DEVNAME(sc),
   2086 		    sc->sc_ld_list.mll_list[i].mll_state);
   2087 	}
   2088 
   2089 	/* additional status can modify MFI status */
   2090 	switch (sc->sc_ld_details.mld_progress.mlp_in_prog) {
   2091 	case MFI_LD_PROG_CC:
   2092 		bv->bv_status = BIOC_SVSCRUB;
   2093 		per = (int)sc->sc_ld_details.mld_progress.mlp_cc.mp_progress;
   2094 		bv->bv_percent = (per * 100) / 0xffff;
   2095 		bv->bv_seconds =
   2096 		    sc->sc_ld_details.mld_progress.mlp_cc.mp_elapsed_seconds;
   2097 		break;
   2098 
   2099 	case MFI_LD_PROG_BGI:
   2100 		bv->bv_status = BIOC_SVSCRUB;
   2101 		per = (int)sc->sc_ld_details.mld_progress.mlp_bgi.mp_progress;
   2102 		bv->bv_percent = (per * 100) / 0xffff;
   2103 		bv->bv_seconds =
   2104 		    sc->sc_ld_details.mld_progress.mlp_bgi.mp_elapsed_seconds;
   2105 		break;
   2106 
   2107 	case MFI_LD_PROG_FGI:
   2108 	case MFI_LD_PROG_RECONSTRUCT:
   2109 		/* nothing yet */
   2110 		break;
   2111 	}
   2112 
   2113 	/*
   2114 	 * The RAID levels are determined per the SNIA DDF spec, this is only
   2115 	 * a subset that is valid for the MFI controller.
   2116 	 */
   2117 	bv->bv_level = sc->sc_ld_details.mld_cfg.mlc_parm.mpa_pri_raid;
   2118 	if (sc->sc_ld_details.mld_cfg.mlc_parm.mpa_sec_raid ==
   2119 	    MFI_DDF_SRL_SPANNED)
   2120 		bv->bv_level *= 10;
   2121 
   2122 	bv->bv_nodisk = sc->sc_ld_details.mld_cfg.mlc_parm.mpa_no_drv_per_span *
   2123 	    sc->sc_ld_details.mld_cfg.mlc_parm.mpa_span_depth;
   2124 
   2125 	bv->bv_size = sc->sc_ld_details.mld_size * 512; /* bytes per block */
   2126 	bv->bv_stripe_size =
   2127 	    (512 << sc->sc_ld_details.mld_cfg.mlc_parm.mpa_stripe_size)
   2128 	    / 1024; /* in KB */
   2129 
   2130 	rv = 0;
   2131 done:
   2132 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_vol done %x\n",
   2133 	    DEVNAME(sc), rv);
   2134 	return rv;
   2135 }
   2136 
   2137 static int
   2138 mfi_ioctl_disk(struct mfi_softc *sc, struct bioc_disk *bd)
   2139 {
   2140 	struct mfi_conf		*cfg;
   2141 	struct mfi_array	*ar;
   2142 	struct mfi_ld_cfg	*ld;
   2143 	struct mfi_pd_details	*pd;
   2144 	struct scsipi_inquiry_data *inqbuf;
   2145 	char			vend[8+16+4+1];
   2146 	int			i, rv = EINVAL;
   2147 	int			arr, vol, disk;
   2148 	uint32_t		size;
   2149 	union mfi_mbox		mbox;
   2150 
   2151 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_disk %#x\n",
   2152 	    DEVNAME(sc), bd->bd_diskid);
   2153 
   2154 	pd = malloc(sizeof *pd, M_DEVBUF, M_WAITOK | M_ZERO);
   2155 
   2156 	/* send single element command to retrieve size for full structure */
   2157 	cfg = malloc(sizeof *cfg, M_DEVBUF, M_WAITOK);
   2158 	if (mfi_mgmt_internal(sc, MR_DCMD_CONF_GET, MFI_DATA_IN,
   2159 	    sizeof *cfg, cfg, NULL, false))
   2160 		goto freeme;
   2161 
   2162 	size = cfg->mfc_size;
   2163 	free(cfg, M_DEVBUF);
   2164 
   2165 	/* memory for read config */
   2166 	cfg = malloc(size, M_DEVBUF, M_WAITOK|M_ZERO);
   2167 	if (mfi_mgmt_internal(sc, MR_DCMD_CONF_GET, MFI_DATA_IN,
   2168 	    size, cfg, NULL, false))
   2169 		goto freeme;
   2170 
   2171 	ar = cfg->mfc_array;
   2172 
   2173 	/* calculate offset to ld structure */
   2174 	ld = (struct mfi_ld_cfg *)(
   2175 	    ((uint8_t *)cfg) + offsetof(struct mfi_conf, mfc_array) +
   2176 	    cfg->mfc_array_size * cfg->mfc_no_array);
   2177 
   2178 	vol = bd->bd_volid;
   2179 
   2180 	if (vol >= cfg->mfc_no_ld) {
   2181 		/* do hotspares */
   2182 		rv = mfi_bio_hs(sc, bd->bd_volid, MFI_MGMT_SD, bd);
   2183 		goto freeme;
   2184 	}
   2185 
   2186 	/* find corresponding array for ld */
   2187 	for (i = 0, arr = 0; i < vol; i++)
   2188 		arr += ld[i].mlc_parm.mpa_span_depth;
   2189 
   2190 	/* offset disk into pd list */
   2191 	disk = bd->bd_diskid % ld[vol].mlc_parm.mpa_no_drv_per_span;
   2192 
   2193 	/* offset array index into the next spans */
   2194 	arr += bd->bd_diskid / ld[vol].mlc_parm.mpa_no_drv_per_span;
   2195 
   2196 	bd->bd_target = ar[arr].pd[disk].mar_enc_slot;
   2197 	switch (ar[arr].pd[disk].mar_pd_state){
   2198 	case MFI_PD_UNCONFIG_GOOD:
   2199 		bd->bd_status = BIOC_SDUNUSED;
   2200 		break;
   2201 
   2202 	case MFI_PD_HOTSPARE: /* XXX dedicated hotspare part of array? */
   2203 		bd->bd_status = BIOC_SDHOTSPARE;
   2204 		break;
   2205 
   2206 	case MFI_PD_OFFLINE:
   2207 		bd->bd_status = BIOC_SDOFFLINE;
   2208 		break;
   2209 
   2210 	case MFI_PD_FAILED:
   2211 		bd->bd_status = BIOC_SDFAILED;
   2212 		break;
   2213 
   2214 	case MFI_PD_REBUILD:
   2215 		bd->bd_status = BIOC_SDREBUILD;
   2216 		break;
   2217 
   2218 	case MFI_PD_ONLINE:
   2219 		bd->bd_status = BIOC_SDONLINE;
   2220 		break;
   2221 
   2222 	case MFI_PD_UNCONFIG_BAD: /* XXX define new state in bio */
   2223 	default:
   2224 		bd->bd_status = BIOC_SDINVALID;
   2225 		break;
   2226 	}
   2227 
   2228 	/* get the remaining fields */
   2229 	memset(&mbox, 0, sizeof(mbox));
   2230 	mbox.s[0] = ar[arr].pd[disk].mar_pd.mfp_id;
   2231 	memset(pd, 0, sizeof(*pd));
   2232 	if (mfi_mgmt_internal(sc, MR_DCMD_PD_GET_INFO, MFI_DATA_IN,
   2233 	    sizeof *pd, pd, &mbox, false))
   2234 		goto freeme;
   2235 
   2236 	bd->bd_size = pd->mpd_size * 512; /* bytes per block */
   2237 
   2238 	/* if pd->mpd_enc_idx is 0 then it is not in an enclosure */
   2239 	bd->bd_channel = pd->mpd_enc_idx;
   2240 
   2241 	inqbuf = (struct scsipi_inquiry_data *)&pd->mpd_inq_data;
   2242 	memcpy(vend, inqbuf->vendor, sizeof vend - 1);
   2243 	vend[sizeof vend - 1] = '\0';
   2244 	strlcpy(bd->bd_vendor, vend, sizeof(bd->bd_vendor));
   2245 
   2246 	/* XXX find a way to retrieve serial nr from drive */
   2247 	/* XXX find a way to get bd_procdev */
   2248 
   2249 	rv = 0;
   2250 freeme:
   2251 	free(pd, M_DEVBUF);
   2252 	free(cfg, M_DEVBUF);
   2253 
   2254 	return rv;
   2255 }
   2256 
   2257 static int
   2258 mfi_ioctl_alarm(struct mfi_softc *sc, struct bioc_alarm *ba)
   2259 {
   2260 	uint32_t		opc, dir = MFI_DATA_NONE;
   2261 	int			rv = 0;
   2262 	int8_t			ret;
   2263 
   2264 	switch (ba->ba_opcode) {
   2265 	case BIOC_SADISABLE:
   2266 		opc = MR_DCMD_SPEAKER_DISABLE;
   2267 		break;
   2268 
   2269 	case BIOC_SAENABLE:
   2270 		opc = MR_DCMD_SPEAKER_ENABLE;
   2271 		break;
   2272 
   2273 	case BIOC_SASILENCE:
   2274 		opc = MR_DCMD_SPEAKER_SILENCE;
   2275 		break;
   2276 
   2277 	case BIOC_GASTATUS:
   2278 		opc = MR_DCMD_SPEAKER_GET;
   2279 		dir = MFI_DATA_IN;
   2280 		break;
   2281 
   2282 	case BIOC_SATEST:
   2283 		opc = MR_DCMD_SPEAKER_TEST;
   2284 		break;
   2285 
   2286 	default:
   2287 		DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_alarm biocalarm invalid "
   2288 		    "opcode %x\n", DEVNAME(sc), ba->ba_opcode);
   2289 		return EINVAL;
   2290 	}
   2291 
   2292 	if (mfi_mgmt_internal(sc, opc, dir, sizeof(ret), &ret, NULL, false))
   2293 		rv = EINVAL;
   2294 	else
   2295 		if (ba->ba_opcode == BIOC_GASTATUS)
   2296 			ba->ba_status = ret;
   2297 		else
   2298 			ba->ba_status = 0;
   2299 
   2300 	return rv;
   2301 }
   2302 
   2303 static int
   2304 mfi_ioctl_blink(struct mfi_softc *sc, struct bioc_blink *bb)
   2305 {
   2306 	int			i, found, rv = EINVAL;
   2307 	union mfi_mbox		mbox;
   2308 	uint32_t		cmd;
   2309 	struct mfi_pd_list	*pd;
   2310 
   2311 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_blink %x\n", DEVNAME(sc),
   2312 	    bb->bb_status);
   2313 
   2314 	/* channel 0 means not in an enclosure so can't be blinked */
   2315 	if (bb->bb_channel == 0)
   2316 		return EINVAL;
   2317 
   2318 	pd = malloc(sizeof(*pd), M_DEVBUF, M_WAITOK);
   2319 
   2320 	if (mfi_mgmt_internal(sc, MR_DCMD_PD_GET_LIST, MFI_DATA_IN,
   2321 	    sizeof(*pd), pd, NULL, false))
   2322 		goto done;
   2323 
   2324 	for (i = 0, found = 0; i < pd->mpl_no_pd; i++)
   2325 		if (bb->bb_channel == pd->mpl_address[i].mpa_enc_index &&
   2326 		    bb->bb_target == pd->mpl_address[i].mpa_enc_slot) {
   2327 			found = 1;
   2328 			break;
   2329 		}
   2330 
   2331 	if (!found)
   2332 		goto done;
   2333 
   2334 	memset(&mbox, 0, sizeof(mbox));
   2335 	mbox.s[0] = pd->mpl_address[i].mpa_pd_id;
   2336 
   2337 	switch (bb->bb_status) {
   2338 	case BIOC_SBUNBLINK:
   2339 		cmd = MR_DCMD_PD_UNBLINK;
   2340 		break;
   2341 
   2342 	case BIOC_SBBLINK:
   2343 		cmd = MR_DCMD_PD_BLINK;
   2344 		break;
   2345 
   2346 	case BIOC_SBALARM:
   2347 	default:
   2348 		DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_blink biocblink invalid "
   2349 		    "opcode %x\n", DEVNAME(sc), bb->bb_status);
   2350 		goto done;
   2351 	}
   2352 
   2353 
   2354 	if (mfi_mgmt_internal(sc, cmd, MFI_DATA_NONE, 0, NULL, &mbox, false))
   2355 		goto done;
   2356 
   2357 	rv = 0;
   2358 done:
   2359 	free(pd, M_DEVBUF);
   2360 	return rv;
   2361 }
   2362 
   2363 static int
   2364 mfi_ioctl_setstate(struct mfi_softc *sc, struct bioc_setstate *bs)
   2365 {
   2366 	struct mfi_pd_list	*pd;
   2367 	int			i, found, rv = EINVAL;
   2368 	union mfi_mbox		mbox;
   2369 
   2370 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_setstate %x\n", DEVNAME(sc),
   2371 	    bs->bs_status);
   2372 
   2373 	pd = malloc(sizeof(*pd), M_DEVBUF, M_WAITOK);
   2374 
   2375 	if (mfi_mgmt_internal(sc, MR_DCMD_PD_GET_LIST, MFI_DATA_IN,
   2376 	    sizeof(*pd), pd, NULL, false))
   2377 		goto done;
   2378 
   2379 	for (i = 0, found = 0; i < pd->mpl_no_pd; i++)
   2380 		if (bs->bs_channel == pd->mpl_address[i].mpa_enc_index &&
   2381 		    bs->bs_target == pd->mpl_address[i].mpa_enc_slot) {
   2382 			found = 1;
   2383 			break;
   2384 		}
   2385 
   2386 	if (!found)
   2387 		goto done;
   2388 
   2389 	memset(&mbox, 0, sizeof(mbox));
   2390 	mbox.s[0] = pd->mpl_address[i].mpa_pd_id;
   2391 
   2392 	switch (bs->bs_status) {
   2393 	case BIOC_SSONLINE:
   2394 		mbox.b[4] = MFI_PD_ONLINE;
   2395 		break;
   2396 
   2397 	case BIOC_SSOFFLINE:
   2398 		mbox.b[4] = MFI_PD_OFFLINE;
   2399 		break;
   2400 
   2401 	case BIOC_SSHOTSPARE:
   2402 		mbox.b[4] = MFI_PD_HOTSPARE;
   2403 		break;
   2404 /*
   2405 	case BIOC_SSREBUILD:
   2406 		break;
   2407 */
   2408 	default:
   2409 		DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_setstate invalid "
   2410 		    "opcode %x\n", DEVNAME(sc), bs->bs_status);
   2411 		goto done;
   2412 	}
   2413 
   2414 
   2415 	if (mfi_mgmt_internal(sc, MR_DCMD_PD_SET_STATE, MFI_DATA_NONE,
   2416 	    0, NULL, &mbox, false))
   2417 		goto done;
   2418 
   2419 	rv = 0;
   2420 done:
   2421 	free(pd, M_DEVBUF);
   2422 	return rv;
   2423 }
   2424 
   2425 static int
   2426 mfi_bio_hs(struct mfi_softc *sc, int volid, int type, void *bio_hs)
   2427 {
   2428 	struct mfi_conf		*cfg;
   2429 	struct mfi_hotspare	*hs;
   2430 	struct mfi_pd_details	*pd;
   2431 	struct bioc_disk	*sdhs;
   2432 	struct bioc_vol		*vdhs;
   2433 	struct scsipi_inquiry_data *inqbuf;
   2434 	char			vend[8+16+4+1];
   2435 	int			i, rv = EINVAL;
   2436 	uint32_t		size;
   2437 	union mfi_mbox		mbox;
   2438 
   2439 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_vol_hs %d\n", DEVNAME(sc), volid);
   2440 
   2441 	if (!bio_hs)
   2442 		return EINVAL;
   2443 
   2444 	pd = malloc(sizeof *pd, M_DEVBUF, M_WAITOK | M_ZERO);
   2445 
   2446 	/* send single element command to retrieve size for full structure */
   2447 	cfg = malloc(sizeof *cfg, M_DEVBUF, M_WAITOK);
   2448 	if (mfi_mgmt_internal(sc, MR_DCMD_CONF_GET, MFI_DATA_IN,
   2449 	    sizeof *cfg, cfg, NULL, false))
   2450 		goto freeme;
   2451 
   2452 	size = cfg->mfc_size;
   2453 	free(cfg, M_DEVBUF);
   2454 
   2455 	/* memory for read config */
   2456 	cfg = malloc(size, M_DEVBUF, M_WAITOK|M_ZERO);
   2457 	if (mfi_mgmt_internal(sc, MR_DCMD_CONF_GET, MFI_DATA_IN,
   2458 	    size, cfg, NULL, false))
   2459 		goto freeme;
   2460 
   2461 	/* calculate offset to hs structure */
   2462 	hs = (struct mfi_hotspare *)(
   2463 	    ((uint8_t *)cfg) + offsetof(struct mfi_conf, mfc_array) +
   2464 	    cfg->mfc_array_size * cfg->mfc_no_array +
   2465 	    cfg->mfc_ld_size * cfg->mfc_no_ld);
   2466 
   2467 	if (volid < cfg->mfc_no_ld)
   2468 		goto freeme; /* not a hotspare */
   2469 
   2470 	if (volid > (cfg->mfc_no_ld + cfg->mfc_no_hs))
   2471 		goto freeme; /* not a hotspare */
   2472 
   2473 	/* offset into hotspare structure */
   2474 	i = volid - cfg->mfc_no_ld;
   2475 
   2476 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_vol_hs i %d volid %d no_ld %d no_hs %d "
   2477 	    "hs %p cfg %p id %02x\n", DEVNAME(sc), i, volid, cfg->mfc_no_ld,
   2478 	    cfg->mfc_no_hs, hs, cfg, hs[i].mhs_pd.mfp_id);
   2479 
   2480 	/* get pd fields */
   2481 	memset(&mbox, 0, sizeof(mbox));
   2482 	mbox.s[0] = hs[i].mhs_pd.mfp_id;
   2483 	if (mfi_mgmt_internal(sc, MR_DCMD_PD_GET_INFO, MFI_DATA_IN,
   2484 	    sizeof *pd, pd, &mbox, false)) {
   2485 		DNPRINTF(MFI_D_IOCTL, "%s: mfi_vol_hs illegal PD\n",
   2486 		    DEVNAME(sc));
   2487 		goto freeme;
   2488 	}
   2489 
   2490 	switch (type) {
   2491 	case MFI_MGMT_VD:
   2492 		vdhs = bio_hs;
   2493 		vdhs->bv_status = BIOC_SVONLINE;
   2494 		vdhs->bv_size = pd->mpd_size * 512; /* bytes per block */
   2495 		vdhs->bv_level = -1; /* hotspare */
   2496 		vdhs->bv_nodisk = 1;
   2497 		break;
   2498 
   2499 	case MFI_MGMT_SD:
   2500 		sdhs = bio_hs;
   2501 		sdhs->bd_status = BIOC_SDHOTSPARE;
   2502 		sdhs->bd_size = pd->mpd_size * 512; /* bytes per block */
   2503 		sdhs->bd_channel = pd->mpd_enc_idx;
   2504 		sdhs->bd_target = pd->mpd_enc_slot;
   2505 		inqbuf = (struct scsipi_inquiry_data *)&pd->mpd_inq_data;
   2506 		memcpy(vend, inqbuf->vendor, sizeof(vend) - 1);
   2507 		vend[sizeof vend - 1] = '\0';
   2508 		strlcpy(sdhs->bd_vendor, vend, sizeof(sdhs->bd_vendor));
   2509 		break;
   2510 
   2511 	default:
   2512 		goto freeme;
   2513 	}
   2514 
   2515 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_vol_hs 6\n", DEVNAME(sc));
   2516 	rv = 0;
   2517 freeme:
   2518 	free(pd, M_DEVBUF);
   2519 	free(cfg, M_DEVBUF);
   2520 
   2521 	return rv;
   2522 }
   2523 
   2524 static int
   2525 mfi_destroy_sensors(struct mfi_softc *sc)
   2526 {
   2527 	if (sc->sc_sme == NULL)
   2528 		return 0;
   2529 	sysmon_envsys_unregister(sc->sc_sme);
   2530 	sc->sc_sme = NULL;
   2531 	free(sc->sc_sensor, M_DEVBUF);
   2532 	return 0;
   2533 }
   2534 
   2535 static int
   2536 mfi_create_sensors(struct mfi_softc *sc)
   2537 {
   2538 	int i;
   2539 	int nsensors = sc->sc_ld_cnt + 1;
   2540 	int rv;
   2541 
   2542 	sc->sc_sme = sysmon_envsys_create();
   2543 	sc->sc_sensor = malloc(sizeof(envsys_data_t) * nsensors,
   2544 	    M_DEVBUF, M_WAITOK | M_ZERO);
   2545 
   2546 	/* BBU */
   2547 	sc->sc_sensor[0].units = ENVSYS_INDICATOR;
   2548 	sc->sc_sensor[0].state = ENVSYS_SINVALID;
   2549 	sc->sc_sensor[0].value_cur = 0;
   2550 	/* Enable monitoring for BBU state changes, if present */
   2551 	if (sc->sc_info.mci_hw_present & MFI_INFO_HW_BBU)
   2552 		sc->sc_sensor[0].flags |= ENVSYS_FMONCRITICAL;
   2553 	snprintf(sc->sc_sensor[0].desc,
   2554 	    sizeof(sc->sc_sensor[0].desc), "%s BBU", DEVNAME(sc));
   2555 	if (sysmon_envsys_sensor_attach(sc->sc_sme, &sc->sc_sensor[0]))
   2556 		goto out;
   2557 
   2558 	for (i = 1; i < nsensors; i++) {
   2559 		sc->sc_sensor[i].units = ENVSYS_DRIVE;
   2560 		sc->sc_sensor[i].state = ENVSYS_SINVALID;
   2561 		sc->sc_sensor[i].value_cur = ENVSYS_DRIVE_EMPTY;
   2562 		/* Enable monitoring for drive state changes */
   2563 		sc->sc_sensor[i].flags |= ENVSYS_FMONSTCHANGED;
   2564 		/* logical drives */
   2565 		snprintf(sc->sc_sensor[i].desc,
   2566 		    sizeof(sc->sc_sensor[i].desc), "%s:%d",
   2567 		    DEVNAME(sc), i - 1);
   2568 		if (sysmon_envsys_sensor_attach(sc->sc_sme,
   2569 						&sc->sc_sensor[i]))
   2570 			goto out;
   2571 	}
   2572 
   2573 	sc->sc_sme->sme_name = DEVNAME(sc);
   2574 	sc->sc_sme->sme_cookie = sc;
   2575 	sc->sc_sme->sme_refresh = mfi_sensor_refresh;
   2576 	rv = sysmon_envsys_register(sc->sc_sme);
   2577 	if (rv != 0) {
   2578 		aprint_error_dev(sc->sc_dev,
   2579 		    "unable to register with sysmon (rv = %d)\n", rv);
   2580 		goto out;
   2581 	}
   2582 	return 0;
   2583 
   2584 out:
   2585 	free(sc->sc_sensor, M_DEVBUF);
   2586 	sysmon_envsys_destroy(sc->sc_sme);
   2587 	sc->sc_sme = NULL;
   2588 	return EINVAL;
   2589 }
   2590 
   2591 static void
   2592 mfi_sensor_refresh(struct sysmon_envsys *sme, envsys_data_t *edata)
   2593 {
   2594 	struct mfi_softc	*sc = sme->sme_cookie;
   2595 	struct bioc_vol		bv;
   2596 	int s;
   2597 	int error;
   2598 
   2599 	if (edata->sensor >= sc->sc_ld_cnt + 1)
   2600 		return;
   2601 
   2602 	if (edata->sensor == 0) {
   2603 		/* BBU */
   2604 		struct mfi_bbu_status	bbu_stat;
   2605 		int bbu_status;
   2606 		if ((sc->sc_info.mci_hw_present & MFI_INFO_HW_BBU) == 0)
   2607 			return;
   2608 
   2609 		KERNEL_LOCK(1, curlwp);
   2610 		s = splbio();
   2611 		bbu_status = mfi_get_bbu(sc, &bbu_stat);
   2612 		splx(s);
   2613 		KERNEL_UNLOCK_ONE(curlwp);
   2614 		switch (bbu_status) {
   2615 		case MFI_BBU_GOOD:
   2616 			edata->value_cur = 1;
   2617 			edata->state = ENVSYS_SVALID;
   2618 			if (!sc->sc_bbuok)
   2619 				aprint_normal_dev(sc->sc_dev,
   2620 				    "BBU state changed to good\n");
   2621 			sc->sc_bbuok = true;
   2622 			break;
   2623 		case MFI_BBU_BAD:
   2624 			edata->value_cur = 0;
   2625 			edata->state = ENVSYS_SCRITICAL;
   2626 			if (sc->sc_bbuok)
   2627 				aprint_normal_dev(sc->sc_dev,
   2628 				    "BBU state changed to bad\n");
   2629 			sc->sc_bbuok = false;
   2630 			break;
   2631 		case MFI_BBU_UNKNOWN:
   2632 		default:
   2633 			edata->value_cur = 0;
   2634 			edata->state = ENVSYS_SINVALID;
   2635 			sc->sc_bbuok = false;
   2636 			break;
   2637 		}
   2638 		return;
   2639 	}
   2640 
   2641 	memset(&bv, 0, sizeof(bv));
   2642 	bv.bv_volid = edata->sensor - 1;
   2643 	KERNEL_LOCK(1, curlwp);
   2644 	s = splbio();
   2645 	error = mfi_ioctl_vol(sc, &bv);
   2646 	splx(s);
   2647 	KERNEL_UNLOCK_ONE(curlwp);
   2648 	if (error)
   2649 		bv.bv_status = BIOC_SVINVALID;
   2650 
   2651 	bio_vol_to_envsys(edata, &bv);
   2652 }
   2653 
   2654 #endif /* NBIO > 0 */
   2655 
   2656 static uint32_t
   2657 mfi_xscale_fw_state(struct mfi_softc *sc)
   2658 {
   2659 	return mfi_read(sc, MFI_OMSG0);
   2660 }
   2661 
   2662 static void
   2663 mfi_xscale_intr_dis(struct mfi_softc *sc)
   2664 {
   2665 	mfi_write(sc, MFI_OMSK, 0);
   2666 }
   2667 
   2668 static void
   2669 mfi_xscale_intr_ena(struct mfi_softc *sc)
   2670 {
   2671 	mfi_write(sc, MFI_OMSK, MFI_ENABLE_INTR);
   2672 }
   2673 
   2674 static int
   2675 mfi_xscale_intr(struct mfi_softc *sc)
   2676 {
   2677 	uint32_t status;
   2678 
   2679 	status = mfi_read(sc, MFI_OSTS);
   2680 	if (!ISSET(status, MFI_OSTS_INTR_VALID))
   2681 		return 0;
   2682 
   2683 	/* write status back to acknowledge interrupt */
   2684 	mfi_write(sc, MFI_OSTS, status);
   2685 	return 1;
   2686 }
   2687 
   2688 static void
   2689 mfi_xscale_post(struct mfi_softc *sc, struct mfi_ccb *ccb)
   2690 {
   2691 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_frames),
   2692 	    ccb->ccb_pframe - MFIMEM_DVA(sc->sc_frames),
   2693 	    sc->sc_frames_size, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   2694 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_sense),
   2695 	    ccb->ccb_psense - MFIMEM_DVA(sc->sc_sense),
   2696 	    MFI_SENSE_SIZE, BUS_DMASYNC_PREREAD);
   2697 
   2698 	mfi_write(sc, MFI_IQP, (ccb->ccb_pframe >> 3) |
   2699 	    ccb->ccb_extra_frames);
   2700 	ccb->ccb_state = MFI_CCB_RUNNING;
   2701 }
   2702 
   2703 static uint32_t
   2704 mfi_ppc_fw_state(struct mfi_softc *sc)
   2705 {
   2706 	return mfi_read(sc, MFI_OSP);
   2707 }
   2708 
   2709 static void
   2710 mfi_ppc_intr_dis(struct mfi_softc *sc)
   2711 {
   2712 	/* Taking a wild guess --dyoung */
   2713 	mfi_write(sc, MFI_OMSK, ~(uint32_t)0x0);
   2714 	mfi_write(sc, MFI_ODC, 0xffffffff);
   2715 }
   2716 
   2717 static void
   2718 mfi_ppc_intr_ena(struct mfi_softc *sc)
   2719 {
   2720 	mfi_write(sc, MFI_ODC, 0xffffffff);
   2721 	mfi_write(sc, MFI_OMSK, ~0x80000004);
   2722 }
   2723 
   2724 static int
   2725 mfi_ppc_intr(struct mfi_softc *sc)
   2726 {
   2727 	uint32_t status;
   2728 
   2729 	status = mfi_read(sc, MFI_OSTS);
   2730 	if (!ISSET(status, MFI_OSTS_PPC_INTR_VALID))
   2731 		return 0;
   2732 
   2733 	/* write status back to acknowledge interrupt */
   2734 	mfi_write(sc, MFI_ODC, status);
   2735 	return 1;
   2736 }
   2737 
   2738 static void
   2739 mfi_ppc_post(struct mfi_softc *sc, struct mfi_ccb *ccb)
   2740 {
   2741 	mfi_write(sc, MFI_IQP, 0x1 | ccb->ccb_pframe |
   2742 	    (ccb->ccb_extra_frames << 1));
   2743 	ccb->ccb_state = MFI_CCB_RUNNING;
   2744 }
   2745 
   2746 u_int32_t
   2747 mfi_gen2_fw_state(struct mfi_softc *sc)
   2748 {
   2749 	return (mfi_read(sc, MFI_OSP));
   2750 }
   2751 
   2752 void
   2753 mfi_gen2_intr_dis(struct mfi_softc *sc)
   2754 {
   2755 	mfi_write(sc, MFI_OMSK, 0xffffffff);
   2756 	mfi_write(sc, MFI_ODC, 0xffffffff);
   2757 }
   2758 
   2759 void
   2760 mfi_gen2_intr_ena(struct mfi_softc *sc)
   2761 {
   2762 	mfi_write(sc, MFI_ODC, 0xffffffff);
   2763 	mfi_write(sc, MFI_OMSK, ~MFI_OSTS_GEN2_INTR_VALID);
   2764 }
   2765 
   2766 int
   2767 mfi_gen2_intr(struct mfi_softc *sc)
   2768 {
   2769 	u_int32_t status;
   2770 
   2771 	status = mfi_read(sc, MFI_OSTS);
   2772 	if (!ISSET(status, MFI_OSTS_GEN2_INTR_VALID))
   2773 		return (0);
   2774 
   2775 	/* write status back to acknowledge interrupt */
   2776 	mfi_write(sc, MFI_ODC, status);
   2777 
   2778 	return (1);
   2779 }
   2780 
   2781 void
   2782 mfi_gen2_post(struct mfi_softc *sc, struct mfi_ccb *ccb)
   2783 {
   2784 	mfi_write(sc, MFI_IQP, 0x1 | ccb->ccb_pframe |
   2785 	    (ccb->ccb_extra_frames << 1));
   2786 	ccb->ccb_state = MFI_CCB_RUNNING;
   2787 }
   2788 
   2789 u_int32_t
   2790 mfi_skinny_fw_state(struct mfi_softc *sc)
   2791 {
   2792 	return (mfi_read(sc, MFI_OSP));
   2793 }
   2794 
   2795 void
   2796 mfi_skinny_intr_dis(struct mfi_softc *sc)
   2797 {
   2798 	mfi_write(sc, MFI_OMSK, 0);
   2799 }
   2800 
   2801 void
   2802 mfi_skinny_intr_ena(struct mfi_softc *sc)
   2803 {
   2804 	mfi_write(sc, MFI_OMSK, ~0x00000001);
   2805 }
   2806 
   2807 int
   2808 mfi_skinny_intr(struct mfi_softc *sc)
   2809 {
   2810 	u_int32_t status;
   2811 
   2812 	status = mfi_read(sc, MFI_OSTS);
   2813 	if (!ISSET(status, MFI_OSTS_SKINNY_INTR_VALID))
   2814 		return (0);
   2815 
   2816 	/* write status back to acknowledge interrupt */
   2817 	mfi_write(sc, MFI_OSTS, status);
   2818 
   2819 	return (1);
   2820 }
   2821 
   2822 void
   2823 mfi_skinny_post(struct mfi_softc *sc, struct mfi_ccb *ccb)
   2824 {
   2825 	mfi_write(sc, MFI_IQPL, 0x1 | ccb->ccb_pframe |
   2826 	    (ccb->ccb_extra_frames << 1));
   2827 	mfi_write(sc, MFI_IQPH, 0x00000000);
   2828 	ccb->ccb_state = MFI_CCB_RUNNING;
   2829 }
   2830 
   2831 #define MFI_FUSION_ENABLE_INTERRUPT_MASK	(0x00000008)
   2832 
   2833 void
   2834 mfi_tbolt_intr_ena(struct mfi_softc *sc)
   2835 {
   2836 	mfi_write(sc, MFI_OMSK, ~MFI_FUSION_ENABLE_INTERRUPT_MASK);
   2837 	mfi_read(sc, MFI_OMSK);
   2838 }
   2839 
   2840 void
   2841 mfi_tbolt_intr_dis(struct mfi_softc *sc)
   2842 {
   2843 	mfi_write(sc, MFI_OMSK, 0xFFFFFFFF);
   2844 	mfi_read(sc, MFI_OMSK);
   2845 }
   2846 
   2847 int
   2848 mfi_tbolt_intr(struct mfi_softc *sc)
   2849 {
   2850 	int32_t status;
   2851 
   2852 	status = mfi_read(sc, MFI_OSTS);
   2853 
   2854 	if (ISSET(status, 0x1)) {
   2855 		mfi_write(sc, MFI_OSTS, status);
   2856 		mfi_read(sc, MFI_OSTS);
   2857 		if (ISSET(status, MFI_STATE_CHANGE_INTERRUPT))
   2858 			return 0;
   2859 		return 1;
   2860 	}
   2861 	if (!ISSET(status, MFI_FUSION_ENABLE_INTERRUPT_MASK))
   2862 		return 0;
   2863 	mfi_read(sc, MFI_OSTS);
   2864 	return 1;
   2865 }
   2866 
   2867 u_int32_t
   2868 mfi_tbolt_fw_state(struct mfi_softc *sc)
   2869 {
   2870 	return mfi_read(sc, MFI_OSP);
   2871 }
   2872 
   2873 void
   2874 mfi_tbolt_post(struct mfi_softc *sc, struct mfi_ccb *ccb)
   2875 {
   2876 	if (sc->sc_MFA_enabled) {
   2877 		if ((ccb->ccb_flags & MFI_CCB_F_TBOLT) == 0)
   2878 			mfi_tbolt_build_mpt_ccb(ccb);
   2879 		mfi_write(sc, MFI_IQPL,
   2880 		    ccb->ccb_tb_request_desc.words & 0xFFFFFFFF);
   2881 		mfi_write(sc, MFI_IQPH,
   2882 		    ccb->ccb_tb_request_desc.words >> 32);
   2883 		ccb->ccb_state = MFI_CCB_RUNNING;
   2884 		return;
   2885 	}
   2886 	uint64_t bus_add = ccb->ccb_pframe;
   2887 	bus_add |= (MFI_REQ_DESCRIPT_FLAGS_MFA
   2888 	    << MFI_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
   2889 	mfi_write(sc, MFI_IQPL, bus_add);
   2890 	mfi_write(sc, MFI_IQPH, bus_add >> 32);
   2891 	ccb->ccb_state = MFI_CCB_RUNNING;
   2892 }
   2893 
   2894 static void
   2895 mfi_tbolt_build_mpt_ccb(struct mfi_ccb *ccb)
   2896 {
   2897 	union mfi_mpi2_request_descriptor *req_desc = &ccb->ccb_tb_request_desc;
   2898 	struct mfi_mpi2_request_raid_scsi_io *io_req = ccb->ccb_tb_io_request;
   2899 	struct mpi25_ieee_sge_chain64 *mpi25_ieee_chain;
   2900 
   2901 	io_req->Function = MPI2_FUNCTION_PASSTHRU_IO_REQUEST;
   2902 	io_req->SGLOffset0 =
   2903 	    offsetof(struct mfi_mpi2_request_raid_scsi_io, SGL) / 4;
   2904 	io_req->ChainOffset =
   2905 	    offsetof(struct mfi_mpi2_request_raid_scsi_io, SGL) / 16;
   2906 
   2907 	mpi25_ieee_chain =
   2908 	    (struct mpi25_ieee_sge_chain64 *)&io_req->SGL.IeeeChain;
   2909 	mpi25_ieee_chain->Address = ccb->ccb_pframe;
   2910 
   2911 	/*
   2912 	  In MFI pass thru, nextChainOffset will always be zero to
   2913 	  indicate the end of the chain.
   2914 	*/
   2915 	mpi25_ieee_chain->Flags= MPI2_IEEE_SGE_FLAGS_CHAIN_ELEMENT
   2916 		| MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR;
   2917 
   2918 	/* setting the length to the maximum length */
   2919 	mpi25_ieee_chain->Length = 1024;
   2920 
   2921 	req_desc->header.RequestFlags = (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
   2922 	    MFI_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
   2923 	ccb->ccb_flags |= MFI_CCB_F_TBOLT;
   2924 	bus_dmamap_sync(ccb->ccb_sc->sc_dmat,
   2925 	    MFIMEM_MAP(ccb->ccb_sc->sc_tbolt_reqmsgpool),
   2926 	    ccb->ccb_tb_pio_request -
   2927 	     MFIMEM_DVA(ccb->ccb_sc->sc_tbolt_reqmsgpool),
   2928 	    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE,
   2929 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   2930 }
   2931 
   2932 /*
   2933  * Description:
   2934  *      This function will prepare message pools for the Thunderbolt controller
   2935  */
   2936 static int
   2937 mfi_tbolt_init_desc_pool(struct mfi_softc *sc)
   2938 {
   2939 	uint32_t     offset = 0;
   2940 	uint8_t      *addr = MFIMEM_KVA(sc->sc_tbolt_reqmsgpool);
   2941 
   2942 	/* Request Descriptors alignment restrictions */
   2943 	KASSERT(((uintptr_t)addr & 0xFF) == 0);
   2944 
   2945 	/* Skip request message pool */
   2946 	addr = &addr[MEGASAS_THUNDERBOLT_NEW_MSG_SIZE * (sc->sc_max_cmds + 1)];
   2947 
   2948 	/* Reply Frame Pool is initialized */
   2949 	sc->sc_reply_frame_pool = (struct mfi_mpi2_reply_header *) addr;
   2950 	KASSERT(((uintptr_t)addr & 0xFF) == 0);
   2951 
   2952 	offset = (uintptr_t)sc->sc_reply_frame_pool
   2953 	    - (uintptr_t)MFIMEM_KVA(sc->sc_tbolt_reqmsgpool);
   2954 	sc->sc_reply_frame_busaddr =
   2955 	    MFIMEM_DVA(sc->sc_tbolt_reqmsgpool) + offset;
   2956 
   2957 	/* initializing reply address to 0xFFFFFFFF */
   2958 	memset((uint8_t *)sc->sc_reply_frame_pool, 0xFF,
   2959 	       (MEGASAS_THUNDERBOLT_REPLY_SIZE * sc->sc_reply_pool_size));
   2960 
   2961 	/* Skip Reply Frame Pool */
   2962 	addr += MEGASAS_THUNDERBOLT_REPLY_SIZE * sc->sc_reply_pool_size;
   2963 	sc->sc_reply_pool_limit = (void *)addr;
   2964 
   2965 	offset = MEGASAS_THUNDERBOLT_REPLY_SIZE * sc->sc_reply_pool_size;
   2966 	sc->sc_sg_frame_busaddr = sc->sc_reply_frame_busaddr + offset;
   2967 
   2968 	/* initialize the last_reply_idx to 0 */
   2969 	sc->sc_last_reply_idx = 0;
   2970 	offset = (sc->sc_sg_frame_busaddr + (MEGASAS_MAX_SZ_CHAIN_FRAME *
   2971 	    sc->sc_max_cmds)) - MFIMEM_DVA(sc->sc_tbolt_reqmsgpool);
   2972 	KASSERT(offset <= sc->sc_tbolt_reqmsgpool->am_size);
   2973 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_tbolt_reqmsgpool), 0,
   2974 	    MFIMEM_MAP(sc->sc_tbolt_reqmsgpool)->dm_mapsize,
   2975 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   2976 	return 0;
   2977 }
   2978 
   2979 /*
   2980  * This routine prepare and issue INIT2 frame to the Firmware
   2981  */
   2982 
   2983 static int
   2984 mfi_tbolt_init_MFI_queue(struct mfi_softc *sc)
   2985 {
   2986 	struct mpi2_ioc_init_request   *mpi2IocInit;
   2987 	struct mfi_init_frame		*mfi_init;
   2988 	struct mfi_ccb			*ccb;
   2989 	bus_addr_t			phyAddress;
   2990 	mfi_address			*mfiAddressTemp;
   2991 	int				s;
   2992 	char				*verbuf;
   2993 	char				wqbuf[10];
   2994 
   2995 	/* Check if initialization is already completed */
   2996 	if (sc->sc_MFA_enabled) {
   2997 		return 1;
   2998 	}
   2999 
   3000 	mpi2IocInit =
   3001 	    (struct mpi2_ioc_init_request *)MFIMEM_KVA(sc->sc_tbolt_ioc_init);
   3002 
   3003 	s = splbio();
   3004 	if ((ccb = mfi_get_ccb(sc)) == NULL) {
   3005 		splx(s);
   3006 		return (EBUSY);
   3007 	}
   3008 
   3009 
   3010 	mfi_init = &ccb->ccb_frame->mfr_init;
   3011 
   3012 	memset(mpi2IocInit, 0, sizeof(struct mpi2_ioc_init_request));
   3013 	mpi2IocInit->Function  = MPI2_FUNCTION_IOC_INIT;
   3014 	mpi2IocInit->WhoInit   = MPI2_WHOINIT_HOST_DRIVER;
   3015 
   3016 	/* set MsgVersion and HeaderVersion host driver was built with */
   3017 	mpi2IocInit->MsgVersion = MPI2_VERSION;
   3018 	mpi2IocInit->HeaderVersion = MPI2_HEADER_VERSION;
   3019 	mpi2IocInit->SystemRequestFrameSize = MEGASAS_THUNDERBOLT_NEW_MSG_SIZE/4;
   3020 	mpi2IocInit->ReplyDescriptorPostQueueDepth =
   3021 	    (uint16_t)sc->sc_reply_pool_size;
   3022 	mpi2IocInit->ReplyFreeQueueDepth = 0; /* Not supported by MR. */
   3023 
   3024 	/* Get physical address of reply frame pool */
   3025 	phyAddress = sc->sc_reply_frame_busaddr;
   3026 	mfiAddressTemp =
   3027 	    (mfi_address *)&mpi2IocInit->ReplyDescriptorPostQueueAddress;
   3028 	mfiAddressTemp->u.addressLow = (uint32_t)phyAddress;
   3029 	mfiAddressTemp->u.addressHigh = (uint32_t)((uint64_t)phyAddress >> 32);
   3030 
   3031 	/* Get physical address of request message pool */
   3032 	phyAddress =  MFIMEM_DVA(sc->sc_tbolt_reqmsgpool);
   3033 	mfiAddressTemp = (mfi_address *)&mpi2IocInit->SystemRequestFrameBaseAddress;
   3034 	mfiAddressTemp->u.addressLow = (uint32_t)phyAddress;
   3035 	mfiAddressTemp->u.addressHigh = (uint32_t)((uint64_t)phyAddress >> 32);
   3036 
   3037 	mpi2IocInit->ReplyFreeQueueAddress =  0; /* Not supported by MR. */
   3038 	mpi2IocInit->TimeStamp = time_uptime;
   3039 
   3040 	verbuf = MFIMEM_KVA(sc->sc_tbolt_verbuf);
   3041 	snprintf(verbuf, strlen(MEGASAS_VERSION) + 2, "%s\n",
   3042 	    MEGASAS_VERSION);
   3043 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_tbolt_verbuf), 0,
   3044 	    MFIMEM_MAP(sc->sc_tbolt_verbuf)->dm_mapsize, BUS_DMASYNC_PREWRITE);
   3045 	mfi_init->driver_ver_lo = htole32(MFIMEM_DVA(sc->sc_tbolt_verbuf));
   3046 	mfi_init->driver_ver_hi =
   3047 		    htole32((uint64_t)MFIMEM_DVA(sc->sc_tbolt_verbuf) >> 32);
   3048 
   3049 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_tbolt_ioc_init), 0,
   3050 	    MFIMEM_MAP(sc->sc_tbolt_ioc_init)->dm_mapsize,
   3051 	    BUS_DMASYNC_PREWRITE);
   3052 	/* Get the physical address of the mpi2 ioc init command */
   3053 	phyAddress =  MFIMEM_DVA(sc->sc_tbolt_ioc_init);
   3054 	mfi_init->mif_qinfo_new_addr_lo = htole32(phyAddress);
   3055 	mfi_init->mif_qinfo_new_addr_hi = htole32((uint64_t)phyAddress >> 32);
   3056 
   3057 	mfi_init->mif_header.mfh_cmd = MFI_CMD_INIT;
   3058 	mfi_init->mif_header.mfh_data_len = sizeof(struct mpi2_ioc_init_request);
   3059 	if (mfi_poll(ccb) != 0) {
   3060 		aprint_error_dev(sc->sc_dev, "failed to send IOC init2 "
   3061 		    "command at 0x%" PRIx64 "\n",
   3062 		    (uint64_t)ccb->ccb_pframe);
   3063 		splx(s);
   3064 		return 1;
   3065 	}
   3066 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_tbolt_verbuf), 0,
   3067 	    MFIMEM_MAP(sc->sc_tbolt_verbuf)->dm_mapsize, BUS_DMASYNC_POSTWRITE);
   3068 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_tbolt_ioc_init), 0,
   3069 	    MFIMEM_MAP(sc->sc_tbolt_ioc_init)->dm_mapsize,
   3070 	    BUS_DMASYNC_POSTWRITE);
   3071 	mfi_put_ccb(ccb);
   3072 	splx(s);
   3073 
   3074 	if (mfi_init->mif_header.mfh_cmd_status == 0) {
   3075 		sc->sc_MFA_enabled = 1;
   3076 	}
   3077 	else {
   3078 		aprint_error_dev(sc->sc_dev, "Init command Failed %x\n",
   3079 		    mfi_init->mif_header.mfh_cmd_status);
   3080 		return 1;
   3081 	}
   3082 
   3083 	snprintf(wqbuf, sizeof(wqbuf), "%swq", DEVNAME(sc));
   3084 	if (workqueue_create(&sc->sc_ldsync_wq, wqbuf, mfi_tbolt_sync_map_info,
   3085 	    sc, PRIBIO, IPL_BIO, 0) != 0) {
   3086 		aprint_error_dev(sc->sc_dev, "workqueue_create failed\n");
   3087 		return 1;
   3088 	}
   3089 	workqueue_enqueue(sc->sc_ldsync_wq, &sc->sc_ldsync_wk, NULL);
   3090 	return 0;
   3091 }
   3092 
   3093 int
   3094 mfi_tbolt_intrh(void *arg)
   3095 {
   3096 	struct mfi_softc	*sc = arg;
   3097 	struct mfi_ccb		*ccb;
   3098 	union mfi_mpi2_reply_descriptor *desc;
   3099 	int smid, num_completed;
   3100 
   3101 	if (!mfi_tbolt_intr(sc))
   3102 		return 0;
   3103 
   3104 	DNPRINTF(MFI_D_INTR, "%s: mfi_tbolt_intrh %#lx %#lx\n", DEVNAME(sc),
   3105 	    (u_long)sc, (u_long)sc->sc_last_reply_idx);
   3106 
   3107 	KASSERT(sc->sc_last_reply_idx < sc->sc_reply_pool_size);
   3108 
   3109 	desc = (union mfi_mpi2_reply_descriptor *)
   3110 	    ((uintptr_t)sc->sc_reply_frame_pool +
   3111 	     sc->sc_last_reply_idx * MEGASAS_THUNDERBOLT_REPLY_SIZE);
   3112 
   3113 	bus_dmamap_sync(sc->sc_dmat,
   3114 	    MFIMEM_MAP(sc->sc_tbolt_reqmsgpool),
   3115 	    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE * (sc->sc_max_cmds + 1),
   3116 	    MEGASAS_THUNDERBOLT_REPLY_SIZE * sc->sc_reply_pool_size,
   3117 	    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
   3118 	num_completed = 0;
   3119 	while ((desc->header.ReplyFlags & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK) !=
   3120 	    MPI2_RPY_DESCRIPT_FLAGS_UNUSED) {
   3121 		smid = desc->header.SMID;
   3122 		KASSERT(smid > 0 && smid <= sc->sc_max_cmds);
   3123 		ccb = &sc->sc_ccb[smid - 1];
   3124 		DNPRINTF(MFI_D_INTR,
   3125 		    "%s: mfi_tbolt_intr SMID %#x reply_idx %#x "
   3126 		    "desc %#" PRIx64 " ccb %p\n", DEVNAME(sc), smid,
   3127 		    sc->sc_last_reply_idx, desc->words, ccb);
   3128 		KASSERT(ccb->ccb_state == MFI_CCB_RUNNING);
   3129 		if (ccb->ccb_flags & MFI_CCB_F_TBOLT_IO &&
   3130 		    ccb->ccb_tb_io_request->ChainOffset != 0) {
   3131 			bus_dmamap_sync(sc->sc_dmat,
   3132 			    MFIMEM_MAP(sc->sc_tbolt_reqmsgpool),
   3133 			    ccb->ccb_tb_psg_frame -
   3134 				MFIMEM_DVA(sc->sc_tbolt_reqmsgpool),
   3135 			    MEGASAS_MAX_SZ_CHAIN_FRAME,  BUS_DMASYNC_POSTREAD);
   3136 		}
   3137 		if (ccb->ccb_flags & MFI_CCB_F_TBOLT_IO) {
   3138 			bus_dmamap_sync(sc->sc_dmat,
   3139 			    MFIMEM_MAP(sc->sc_tbolt_reqmsgpool),
   3140 			    ccb->ccb_tb_pio_request -
   3141 				MFIMEM_DVA(sc->sc_tbolt_reqmsgpool),
   3142 			    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE,
   3143 			    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
   3144 		}
   3145 		if (ccb->ccb_done)
   3146 			ccb->ccb_done(ccb);
   3147 		else
   3148 			ccb->ccb_state = MFI_CCB_DONE;
   3149 		sc->sc_last_reply_idx++;
   3150 		if (sc->sc_last_reply_idx >= sc->sc_reply_pool_size) {
   3151 			sc->sc_last_reply_idx = 0;
   3152 		}
   3153 		desc->words = ~0x0;
   3154 		/* Get the next reply descriptor */
   3155 		desc = (union mfi_mpi2_reply_descriptor *)
   3156 		    ((uintptr_t)sc->sc_reply_frame_pool +
   3157 		     sc->sc_last_reply_idx * MEGASAS_THUNDERBOLT_REPLY_SIZE);
   3158 		num_completed++;
   3159 	}
   3160 	if (num_completed == 0)
   3161 		return 0;
   3162 
   3163 	bus_dmamap_sync(sc->sc_dmat,
   3164 	    MFIMEM_MAP(sc->sc_tbolt_reqmsgpool),
   3165 	    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE * (sc->sc_max_cmds + 1),
   3166 	    MEGASAS_THUNDERBOLT_REPLY_SIZE * sc->sc_reply_pool_size,
   3167 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   3168 	mfi_write(sc, MFI_RPI, sc->sc_last_reply_idx);
   3169 	return 1;
   3170 }
   3171 
   3172 
   3173 int
   3174 mfi_tbolt_scsi_ld_io(struct mfi_ccb *ccb, struct scsipi_xfer *xs,
   3175     uint64_t blockno, uint32_t blockcnt)
   3176 {
   3177 	struct scsipi_periph *periph = xs->xs_periph;
   3178 	struct mfi_mpi2_request_raid_scsi_io    *io_req;
   3179 	int sge_count;
   3180 
   3181 	DNPRINTF(MFI_D_CMD, "%s: mfi_tbolt_scsi_ld_io: %d\n",
   3182 	    device_xname(periph->periph_channel->chan_adapter->adapt_dev),
   3183 	    periph->periph_target);
   3184 
   3185 	if (!xs->data)
   3186 		return 1;
   3187 
   3188 	ccb->ccb_done = mfi_tbolt_scsi_ld_done;
   3189 	ccb->ccb_xs = xs;
   3190 	ccb->ccb_data = xs->data;
   3191 	ccb->ccb_len = xs->datalen;
   3192 
   3193 	io_req = ccb->ccb_tb_io_request;
   3194 
   3195 	/* Just the CDB length,rest of the Flags are zero */
   3196 	io_req->IoFlags = xs->cmdlen;
   3197 	memset(io_req->CDB.CDB32, 0, 32);
   3198 	memcpy(io_req->CDB.CDB32, &xs->cmdstore, xs->cmdlen);
   3199 
   3200 	io_req->RaidContext.TargetID = periph->periph_target;
   3201 	io_req->RaidContext.Status = 0;
   3202 	io_req->RaidContext.exStatus = 0;
   3203 	io_req->RaidContext.timeoutValue = MFI_FUSION_FP_DEFAULT_TIMEOUT;
   3204 	io_req->Function = MPI2_FUNCTION_LD_IO_REQUEST;
   3205 	io_req->DevHandle = periph->periph_target;
   3206 
   3207 	ccb->ccb_tb_request_desc.header.RequestFlags =
   3208 	    (MFI_REQ_DESCRIPT_FLAGS_LD_IO << MFI_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
   3209 	io_req->DataLength = blockcnt * MFI_SECTOR_LEN;
   3210 
   3211 	if (xs->xs_control & XS_CTL_DATA_IN) {
   3212 		io_req->Control = MPI2_SCSIIO_CONTROL_READ;
   3213 		ccb->ccb_direction = MFI_DATA_IN;
   3214 	} else {
   3215 		io_req->Control = MPI2_SCSIIO_CONTROL_WRITE;
   3216 		ccb->ccb_direction = MFI_DATA_OUT;
   3217 	}
   3218 
   3219 	sge_count = mfi_tbolt_create_sgl(ccb,
   3220 	    (xs->xs_control & XS_CTL_NOSLEEP) ? BUS_DMA_NOWAIT : BUS_DMA_WAITOK
   3221 	    );
   3222 	if (sge_count < 0)
   3223 		return 1;
   3224 	KASSERT(sge_count <= ccb->ccb_sc->sc_max_sgl);
   3225 	io_req->RaidContext.numSGE = sge_count;
   3226 	io_req->SGLFlags = MPI2_SGE_FLAGS_64_BIT_ADDRESSING;
   3227 	io_req->SGLOffset0 =
   3228 	    offsetof(struct mfi_mpi2_request_raid_scsi_io, SGL) / 4;
   3229 
   3230 	io_req->SenseBufferLowAddress = htole32(ccb->ccb_psense);
   3231 	io_req->SenseBufferLength = MFI_SENSE_SIZE;
   3232 
   3233 	ccb->ccb_flags |= MFI_CCB_F_TBOLT | MFI_CCB_F_TBOLT_IO;
   3234 	bus_dmamap_sync(ccb->ccb_sc->sc_dmat,
   3235 	    MFIMEM_MAP(ccb->ccb_sc->sc_tbolt_reqmsgpool),
   3236 	    ccb->ccb_tb_pio_request -
   3237 	     MFIMEM_DVA(ccb->ccb_sc->sc_tbolt_reqmsgpool),
   3238 	    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE,
   3239 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   3240 
   3241 	return 0;
   3242 }
   3243 
   3244 
   3245 static void
   3246 mfi_tbolt_scsi_ld_done(struct mfi_ccb *ccb)
   3247 {
   3248 	struct mfi_mpi2_request_raid_scsi_io *io_req = ccb->ccb_tb_io_request;
   3249 	mfi_scsi_xs_done(ccb, io_req->RaidContext.Status,
   3250 	    io_req->RaidContext.exStatus);
   3251 }
   3252 
   3253 static int
   3254 mfi_tbolt_create_sgl(struct mfi_ccb *ccb, int flags)
   3255 {
   3256 	struct mfi_softc	*sc = ccb->ccb_sc;
   3257 	bus_dma_segment_t	*sgd;
   3258 	int			error, i, sge_idx, sge_count;
   3259 	struct mfi_mpi2_request_raid_scsi_io *io_req;
   3260 	struct mpi25_ieee_sge_chain64 *sgl_ptr;
   3261 
   3262 	DNPRINTF(MFI_D_DMA, "%s: mfi_tbolt_create_sgl %#lx\n", DEVNAME(sc),
   3263 	    (u_long)ccb->ccb_data);
   3264 
   3265 	if (!ccb->ccb_data)
   3266 		return -1;
   3267 
   3268 	KASSERT(flags == BUS_DMA_NOWAIT || !cpu_intr_p());
   3269 	error = bus_dmamap_load(sc->sc_datadmat, ccb->ccb_dmamap,
   3270 	    ccb->ccb_data, ccb->ccb_len, NULL, flags);
   3271 	if (error) {
   3272 		if (error == EFBIG)
   3273 			aprint_error_dev(sc->sc_dev, "more than %d dma segs\n",
   3274 			    sc->sc_max_sgl);
   3275 		else
   3276 			aprint_error_dev(sc->sc_dev,
   3277 			    "error %d loading dma map\n", error);
   3278 		return -1;
   3279 	}
   3280 
   3281 	io_req = ccb->ccb_tb_io_request;
   3282 	sgl_ptr = &io_req->SGL.IeeeChain.Chain64;
   3283 	sge_count = ccb->ccb_dmamap->dm_nsegs;
   3284 	sgd = ccb->ccb_dmamap->dm_segs;
   3285 	KASSERT(sge_count <= sc->sc_max_sgl);
   3286 	KASSERT(sge_count <=
   3287 	    (MEGASAS_THUNDERBOLT_MAX_SGE_IN_MAINMSG - 1 +
   3288 	     MEGASAS_THUNDERBOLT_MAX_SGE_IN_CHAINMSG));
   3289 
   3290 	if (sge_count > MEGASAS_THUNDERBOLT_MAX_SGE_IN_MAINMSG) {
   3291 		/* One element to store the chain info */
   3292 		sge_idx = MEGASAS_THUNDERBOLT_MAX_SGE_IN_MAINMSG - 1;
   3293 		DNPRINTF(MFI_D_DMA,
   3294 		    "mfi sge_idx %d sge_count %d io_req paddr %jx\n",
   3295 		    sge_idx, sge_count, (uintmax_t)ccb->ccb_tb_pio_request);
   3296 	} else {
   3297 		sge_idx = sge_count;
   3298 	}
   3299 
   3300 	for (i = 0; i < sge_idx; i++) {
   3301 		sgl_ptr->Address = htole64(sgd[i].ds_addr);
   3302 		sgl_ptr->Length = htole32(sgd[i].ds_len);
   3303 		sgl_ptr->Flags = 0;
   3304 		if (sge_idx < sge_count) {
   3305 			DNPRINTF(MFI_D_DMA,
   3306 			    "sgl %p %d 0x%" PRIx64 " len 0x%" PRIx32
   3307 			    " flags 0x%x\n", sgl_ptr, i,
   3308 			    sgl_ptr->Address, sgl_ptr->Length,
   3309 			    sgl_ptr->Flags);
   3310 		}
   3311 		sgl_ptr++;
   3312 	}
   3313 	io_req->ChainOffset = 0;
   3314 	if (sge_idx < sge_count) {
   3315 		struct mpi25_ieee_sge_chain64 *sg_chain;
   3316 		io_req->ChainOffset = MEGASAS_THUNDERBOLT_CHAIN_OFF_MAINMSG;
   3317 		sg_chain = sgl_ptr;
   3318 		/* Prepare chain element */
   3319 		sg_chain->NextChainOffset = 0;
   3320 		sg_chain->Flags = (MPI2_IEEE_SGE_FLAGS_CHAIN_ELEMENT |
   3321 		    MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR);
   3322 		sg_chain->Length =  (sizeof(mpi2_sge_io_union) *
   3323 		    (sge_count - sge_idx));
   3324 		sg_chain->Address = ccb->ccb_tb_psg_frame;
   3325 		DNPRINTF(MFI_D_DMA,
   3326 		    "sgl %p chain 0x%" PRIx64 " len 0x%" PRIx32
   3327 		    " flags 0x%x\n", sg_chain, sg_chain->Address,
   3328 		    sg_chain->Length, sg_chain->Flags);
   3329 		sgl_ptr = &ccb->ccb_tb_sg_frame->IeeeChain.Chain64;
   3330 		for (; i < sge_count; i++) {
   3331 			sgl_ptr->Address = htole64(sgd[i].ds_addr);
   3332 			sgl_ptr->Length = htole32(sgd[i].ds_len);
   3333 			sgl_ptr->Flags = 0;
   3334 			DNPRINTF(MFI_D_DMA,
   3335 			    "sgl %p %d 0x%" PRIx64 " len 0x%" PRIx32
   3336 			    " flags 0x%x\n", sgl_ptr, i, sgl_ptr->Address,
   3337 			    sgl_ptr->Length, sgl_ptr->Flags);
   3338 			sgl_ptr++;
   3339 		}
   3340 		bus_dmamap_sync(sc->sc_dmat,
   3341 		    MFIMEM_MAP(sc->sc_tbolt_reqmsgpool),
   3342 		    ccb->ccb_tb_psg_frame - MFIMEM_DVA(sc->sc_tbolt_reqmsgpool),
   3343 		    MEGASAS_MAX_SZ_CHAIN_FRAME,  BUS_DMASYNC_PREREAD);
   3344 	}
   3345 
   3346 	if (ccb->ccb_direction == MFI_DATA_IN) {
   3347 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   3348 		    ccb->ccb_dmamap->dm_mapsize, BUS_DMASYNC_PREREAD);
   3349 	} else {
   3350 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   3351 		    ccb->ccb_dmamap->dm_mapsize, BUS_DMASYNC_PREWRITE);
   3352 	}
   3353 	return sge_count;
   3354 }
   3355 
   3356 /*
   3357  * The ThunderBolt HW has an option for the driver to directly
   3358  * access the underlying disks and operate on the RAID.  To
   3359  * do this there needs to be a capability to keep the RAID controller
   3360  * and driver in sync.  The FreeBSD driver does not take advantage
   3361  * of this feature since it adds a lot of complexity and slows down
   3362  * performance.  Performance is gained by using the controller's
   3363  * cache etc.
   3364  *
   3365  * Even though this driver doesn't access the disks directly, an
   3366  * AEN like command is used to inform the RAID firmware to "sync"
   3367  * with all LD's via the MFI_DCMD_LD_MAP_GET_INFO command.  This
   3368  * command in write mode will return when the RAID firmware has
   3369  * detected a change to the RAID state.  Examples of this type
   3370  * of change are removing a disk.  Once the command returns then
   3371  * the driver needs to acknowledge this and "sync" all LD's again.
   3372  * This repeats until we shutdown.  Then we need to cancel this
   3373  * pending command.
   3374  *
   3375  * If this is not done right the RAID firmware will not remove a
   3376  * pulled drive and the RAID won't go degraded etc.  Effectively,
   3377  * stopping any RAID management to functions.
   3378  *
   3379  * Doing another LD sync, requires the use of an event since the
   3380  * driver needs to do a mfi_wait_command and can't do that in an
   3381  * interrupt thread.
   3382  *
   3383  * The driver could get the RAID state via the MFI_DCMD_LD_MAP_GET_INFO
   3384  * That requires a bunch of structure and it is simpler to just do
   3385  * the MFI_DCMD_LD_GET_LIST versus walking the RAID map.
   3386  */
   3387 
   3388 void
   3389 mfi_tbolt_sync_map_info(struct work *w, void *v)
   3390 {
   3391 	struct mfi_softc *sc = v;
   3392 	int i;
   3393 	struct mfi_ccb *ccb = NULL;
   3394 	union mfi_mbox mbox;
   3395 	struct mfi_ld *ld_sync;
   3396 	size_t ld_size;
   3397 	int s;
   3398 
   3399 	DNPRINTF(MFI_D_SYNC, "%s: mfi_tbolt_sync_map_info\n", DEVNAME(sc));
   3400 again:
   3401 	ld_sync = NULL;
   3402 	s = splbio();
   3403 	if (sc->sc_ldsync_ccb != NULL) {
   3404 		splx(s);
   3405 		return;
   3406 	}
   3407 
   3408 	if (mfi_mgmt_internal(sc, MR_DCMD_LD_GET_LIST, MFI_DATA_IN,
   3409 	    sizeof(sc->sc_ld_list), &sc->sc_ld_list, NULL, false)) {
   3410 		aprint_error_dev(sc->sc_dev, "MR_DCMD_LD_GET_LIST failed\n");
   3411 		goto err;
   3412 	}
   3413 
   3414 	ld_size = sizeof(*ld_sync) * sc->sc_ld_list.mll_no_ld;
   3415 
   3416 	ld_sync = malloc(ld_size, M_DEVBUF, M_WAITOK | M_ZERO);
   3417 	if (ld_sync == NULL) {
   3418 		aprint_error_dev(sc->sc_dev, "Failed to allocate sync\n");
   3419 		goto err;
   3420 	}
   3421 	for (i = 0; i < sc->sc_ld_list.mll_no_ld; i++) {
   3422 		ld_sync[i] = sc->sc_ld_list.mll_list[i].mll_ld;
   3423 	}
   3424 
   3425 	if ((ccb = mfi_get_ccb(sc)) == NULL) {
   3426 		aprint_error_dev(sc->sc_dev, "Failed to get sync command\n");
   3427 		goto err;
   3428 	}
   3429 	sc->sc_ldsync_ccb = ccb;
   3430 
   3431 	memset(&mbox, 0, sizeof(mbox));
   3432 	mbox.b[0] = sc->sc_ld_list.mll_no_ld;
   3433 	mbox.b[1] = MFI_DCMD_MBOX_PEND_FLAG;
   3434 	if (mfi_mgmt(ccb, NULL, MR_DCMD_LD_MAP_GET_INFO, MFI_DATA_OUT,
   3435 	    ld_size, ld_sync, &mbox)) {
   3436 		aprint_error_dev(sc->sc_dev, "Failed to create sync command\n");
   3437 		goto err;
   3438 	}
   3439 	/*
   3440 	 * we won't sleep on this command, so we have to override
   3441 	 * the callback set up by mfi_mgmt()
   3442 	 */
   3443 	ccb->ccb_done = mfi_sync_map_complete;
   3444 
   3445 	mfi_post(sc, ccb);
   3446 	splx(s);
   3447 	return;
   3448 
   3449 err:
   3450 	if (ld_sync)
   3451 		free(ld_sync, M_DEVBUF);
   3452 	if (ccb)
   3453 		mfi_put_ccb(ccb);
   3454 	sc->sc_ldsync_ccb = NULL;
   3455 	splx(s);
   3456 	kpause("ldsyncp", 0, hz, NULL);
   3457 	goto again;
   3458 }
   3459 
   3460 static void
   3461 mfi_sync_map_complete(struct mfi_ccb *ccb)
   3462 {
   3463 	struct mfi_softc *sc = ccb->ccb_sc;
   3464 	bool aborted = !sc->sc_running;
   3465 
   3466 	DNPRINTF(MFI_D_SYNC, "%s: mfi_sync_map_complete\n",
   3467 	    DEVNAME(ccb->ccb_sc));
   3468 	KASSERT(sc->sc_ldsync_ccb == ccb);
   3469 	mfi_mgmt_done(ccb);
   3470 	free(ccb->ccb_data, M_DEVBUF);
   3471 	if (ccb->ccb_flags & MFI_CCB_F_ERR) {
   3472 		aprint_error_dev(sc->sc_dev, "sync command failed\n");
   3473 		aborted = true;
   3474 	}
   3475 	mfi_put_ccb(ccb);
   3476 	sc->sc_ldsync_ccb = NULL;
   3477 
   3478 	/* set it up again so the driver can catch more events */
   3479 	if (!aborted) {
   3480 		workqueue_enqueue(sc->sc_ldsync_wq, &sc->sc_ldsync_wk, NULL);
   3481 	}
   3482 }
   3483 
   3484 static int
   3485 mfifopen(dev_t dev, int flag, int mode, struct lwp *l)
   3486 {
   3487 	struct mfi_softc *sc;
   3488 
   3489 	if ((sc = device_lookup_private(&mfi_cd, minor(dev))) == NULL)
   3490 		return (ENXIO);
   3491 	return (0);
   3492 }
   3493 
   3494 static int
   3495 mfifclose(dev_t dev, int flag, int mode, struct lwp *l)
   3496 {
   3497 	return (0);
   3498 }
   3499 
   3500 static int
   3501 mfifioctl(dev_t dev, u_long cmd, void *data, int flag,
   3502     struct lwp *l)
   3503 {
   3504 	struct mfi_softc *sc;
   3505 	struct mfi_ioc_packet *ioc = data;
   3506 	uint8_t *udata;
   3507 	struct mfi_ccb *ccb = NULL;
   3508 	int ctx, i, s, error;
   3509 	union mfi_sense_ptr sense_ptr;
   3510 
   3511 	switch (cmd) {
   3512 	case MFI_CMD:
   3513 		sc = device_lookup_private(&mfi_cd, ioc->mfi_adapter_no);
   3514 		break;
   3515 	default:
   3516 		return ENOTTY;
   3517 	}
   3518 	if (sc == NULL)
   3519 		return (ENXIO);
   3520 	if (sc->sc_opened)
   3521 		return (EBUSY);
   3522 
   3523 	switch (cmd) {
   3524 	case MFI_CMD:
   3525 		error = kauth_authorize_device_passthru(l->l_cred, dev,
   3526 		    KAUTH_REQ_DEVICE_RAWIO_PASSTHRU_ALL, data);
   3527 		if (error)
   3528 			return error;
   3529 		if (ioc->mfi_sge_count > MAX_IOCTL_SGE)
   3530 			return EINVAL;
   3531 		s = splbio();
   3532 		if ((ccb = mfi_get_ccb(sc)) == NULL)
   3533 			return ENOMEM;
   3534 		ccb->ccb_data = NULL;
   3535 		ctx = ccb->ccb_frame->mfr_header.mfh_context;
   3536 		memcpy(ccb->ccb_frame, ioc->mfi_frame.raw,
   3537 		   sizeof(*ccb->ccb_frame));
   3538 		ccb->ccb_frame->mfr_header.mfh_context = ctx;
   3539 		ccb->ccb_frame->mfr_header.mfh_scsi_status = 0;
   3540 		ccb->ccb_frame->mfr_header.mfh_pad0 = 0;
   3541 		ccb->ccb_frame_size =
   3542 		    (sizeof(union mfi_sgl) * ioc->mfi_sge_count) +
   3543 		    ioc->mfi_sgl_off;
   3544 		if (ioc->mfi_sge_count > 0) {
   3545 			ccb->ccb_sgl = (union mfi_sgl *)
   3546 			    &ccb->ccb_frame->mfr_bytes[ioc->mfi_sgl_off];
   3547 		}
   3548 		if (ccb->ccb_frame->mfr_header.mfh_flags & MFI_FRAME_DIR_READ)
   3549 			ccb->ccb_direction = MFI_DATA_IN;
   3550 		if (ccb->ccb_frame->mfr_header.mfh_flags & MFI_FRAME_DIR_WRITE)
   3551 			ccb->ccb_direction = MFI_DATA_OUT;
   3552 		ccb->ccb_len = ccb->ccb_frame->mfr_header.mfh_data_len;
   3553 		if (ccb->ccb_len > MAXPHYS) {
   3554 			error = ENOMEM;
   3555 			goto out;
   3556 		}
   3557 		if (ccb->ccb_len &&
   3558 		    (ccb->ccb_direction & (MFI_DATA_IN | MFI_DATA_OUT)) != 0) {
   3559 			udata = malloc(ccb->ccb_len, M_DEVBUF, M_WAITOK|M_ZERO);
   3560 			if (udata == NULL) {
   3561 				error = ENOMEM;
   3562 				goto out;
   3563 			}
   3564 			ccb->ccb_data = udata;
   3565 			if (ccb->ccb_direction & MFI_DATA_OUT) {
   3566 				for (i = 0; i < ioc->mfi_sge_count; i++) {
   3567 					error = copyin(ioc->mfi_sgl[i].iov_base,
   3568 					    udata, ioc->mfi_sgl[i].iov_len);
   3569 					if (error)
   3570 						goto out;
   3571 					udata = &udata[
   3572 					    ioc->mfi_sgl[i].iov_len];
   3573 				}
   3574 			}
   3575 			if (mfi_create_sgl(ccb, BUS_DMA_WAITOK)) {
   3576 				error = EIO;
   3577 				goto out;
   3578 			}
   3579 		}
   3580 		if (ccb->ccb_frame->mfr_header.mfh_cmd == MFI_CMD_PD_SCSI_IO) {
   3581 			ccb->ccb_frame->mfr_io.mif_sense_addr_lo =
   3582 			    htole32(ccb->ccb_psense);
   3583 			ccb->ccb_frame->mfr_io.mif_sense_addr_hi = 0;
   3584 		}
   3585 		ccb->ccb_done = mfi_mgmt_done;
   3586 		mfi_post(sc, ccb);
   3587 		while (ccb->ccb_state != MFI_CCB_DONE)
   3588 			tsleep(ccb, PRIBIO, "mfi_fioc", 0);
   3589 
   3590 		if (ccb->ccb_direction & MFI_DATA_IN) {
   3591 			udata = ccb->ccb_data;
   3592 			for (i = 0; i < ioc->mfi_sge_count; i++) {
   3593 				error = copyout(udata,
   3594 				    ioc->mfi_sgl[i].iov_base,
   3595 				    ioc->mfi_sgl[i].iov_len);
   3596 				if (error)
   3597 					goto out;
   3598 				udata = &udata[
   3599 				    ioc->mfi_sgl[i].iov_len];
   3600 			}
   3601 		}
   3602 		if (ioc->mfi_sense_len) {
   3603 			memcpy(&sense_ptr.sense_ptr_data[0],
   3604 			&ioc->mfi_frame.raw[ioc->mfi_sense_off],
   3605 			sizeof(sense_ptr.sense_ptr_data));
   3606 			error = copyout(ccb->ccb_sense,
   3607 			    sense_ptr.user_space,
   3608 			    sizeof(sense_ptr.sense_ptr_data));
   3609 			if (error)
   3610 				goto out;
   3611 		}
   3612 		memcpy(ioc->mfi_frame.raw, ccb->ccb_frame,
   3613 		   sizeof(*ccb->ccb_frame));
   3614 		break;
   3615 	default:
   3616 		printf("mfifioctl unhandled cmd 0x%lx\n", cmd);
   3617 		return ENOTTY;
   3618 	}
   3619 
   3620 out:
   3621 	if (ccb->ccb_data)
   3622 		free(ccb->ccb_data, M_DEVBUF);
   3623 	if (ccb)
   3624 		mfi_put_ccb(ccb);
   3625 	splx(s);
   3626 	return error;
   3627 }
   3628