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mfi.c revision 1.44
      1 /* $NetBSD: mfi.c,v 1.44 2012/08/23 12:24:33 bouyer 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 1.44 2012/08/23 12:24:33 bouyer 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 
     90 #include <uvm/uvm_param.h>
     91 
     92 #include <sys/bus.h>
     93 
     94 #include <dev/scsipi/scsipi_all.h>
     95 #include <dev/scsipi/scsi_all.h>
     96 #include <dev/scsipi/scsi_spc.h>
     97 #include <dev/scsipi/scsipi_disk.h>
     98 #include <dev/scsipi/scsi_disk.h>
     99 #include <dev/scsipi/scsiconf.h>
    100 
    101 #include <dev/ic/mfireg.h>
    102 #include <dev/ic/mfivar.h>
    103 
    104 #if NBIO > 0
    105 #include <dev/biovar.h>
    106 #endif /* NBIO > 0 */
    107 
    108 #ifdef MFI_DEBUG
    109 uint32_t	mfi_debug = 0
    110 /*		    | MFI_D_CMD  */
    111 /*		    | MFI_D_INTR */
    112 /*		    | MFI_D_MISC */
    113 /*		    | MFI_D_DMA */
    114 /*		    | MFI_D_IOCTL */
    115 /*		    | MFI_D_RW */
    116 /*		    | MFI_D_MEM */
    117 /*		    | MFI_D_CCB */
    118 /*		    | MFI_D_SYNC */
    119 		;
    120 #endif
    121 
    122 static void		mfi_scsipi_request(struct scsipi_channel *,
    123 				scsipi_adapter_req_t, void *);
    124 static void		mfiminphys(struct buf *bp);
    125 
    126 static struct mfi_ccb	*mfi_get_ccb(struct mfi_softc *);
    127 static void		mfi_put_ccb(struct mfi_ccb *);
    128 static int		mfi_init_ccb(struct mfi_softc *);
    129 
    130 static struct mfi_mem	*mfi_allocmem(struct mfi_softc *, size_t);
    131 static void		mfi_freemem(struct mfi_softc *, struct mfi_mem **);
    132 
    133 static int		mfi_transition_firmware(struct mfi_softc *);
    134 static int		mfi_initialize_firmware(struct mfi_softc *);
    135 static int		mfi_get_info(struct mfi_softc *);
    136 static uint32_t		mfi_read(struct mfi_softc *, bus_size_t);
    137 static void		mfi_write(struct mfi_softc *, bus_size_t, uint32_t);
    138 static int		mfi_poll(struct mfi_ccb *);
    139 static int		mfi_create_sgl(struct mfi_ccb *, int);
    140 
    141 /* commands */
    142 static int		mfi_scsi_ld(struct mfi_ccb *, struct scsipi_xfer *);
    143 static int		mfi_scsi_ld_io(struct mfi_ccb *, struct scsipi_xfer *,
    144 				uint64_t, uint32_t);
    145 static void		mfi_scsi_ld_done(struct mfi_ccb *);
    146 static void		mfi_scsi_xs_done(struct mfi_ccb *, int, int);
    147 static int		mfi_mgmt_internal(struct mfi_softc *,
    148 			    uint32_t, uint32_t, uint32_t, void *, uint8_t *);
    149 static int		mfi_mgmt(struct mfi_ccb *,struct scsipi_xfer *,
    150 			    uint32_t, uint32_t, uint32_t, void *, uint8_t *);
    151 static void		mfi_mgmt_done(struct mfi_ccb *);
    152 
    153 #if NBIO > 0
    154 static int		mfi_ioctl(device_t, u_long, void *);
    155 static int		mfi_ioctl_inq(struct mfi_softc *, struct bioc_inq *);
    156 static int		mfi_ioctl_vol(struct mfi_softc *, struct bioc_vol *);
    157 static int		mfi_ioctl_disk(struct mfi_softc *, struct bioc_disk *);
    158 static int		mfi_ioctl_alarm(struct mfi_softc *,
    159 				struct bioc_alarm *);
    160 static int		mfi_ioctl_blink(struct mfi_softc *sc,
    161 				struct bioc_blink *);
    162 static int		mfi_ioctl_setstate(struct mfi_softc *,
    163 				struct bioc_setstate *);
    164 static int		mfi_bio_hs(struct mfi_softc *, int, int, void *);
    165 static int		mfi_create_sensors(struct mfi_softc *);
    166 static int		mfi_destroy_sensors(struct mfi_softc *);
    167 static void		mfi_sensor_refresh(struct sysmon_envsys *,
    168 				envsys_data_t *);
    169 #endif /* NBIO > 0 */
    170 
    171 static uint32_t 	mfi_xscale_fw_state(struct mfi_softc *sc);
    172 static void 		mfi_xscale_intr_ena(struct mfi_softc *sc);
    173 static void 		mfi_xscale_intr_dis(struct mfi_softc *sc);
    174 static int 		mfi_xscale_intr(struct mfi_softc *sc);
    175 static void 		mfi_xscale_post(struct mfi_softc *sc, struct mfi_ccb *ccb);
    176 
    177 static const struct mfi_iop_ops mfi_iop_xscale = {
    178 	mfi_xscale_fw_state,
    179 	mfi_xscale_intr_dis,
    180 	mfi_xscale_intr_ena,
    181 	mfi_xscale_intr,
    182 	mfi_xscale_post,
    183 	mfi_scsi_ld_io,
    184 };
    185 
    186 static uint32_t 	mfi_ppc_fw_state(struct mfi_softc *sc);
    187 static void 		mfi_ppc_intr_ena(struct mfi_softc *sc);
    188 static void 		mfi_ppc_intr_dis(struct mfi_softc *sc);
    189 static int 		mfi_ppc_intr(struct mfi_softc *sc);
    190 static void 		mfi_ppc_post(struct mfi_softc *sc, struct mfi_ccb *ccb);
    191 
    192 static const struct mfi_iop_ops mfi_iop_ppc = {
    193 	mfi_ppc_fw_state,
    194 	mfi_ppc_intr_dis,
    195 	mfi_ppc_intr_ena,
    196 	mfi_ppc_intr,
    197 	mfi_ppc_post,
    198 	mfi_scsi_ld_io,
    199 };
    200 
    201 uint32_t	mfi_gen2_fw_state(struct mfi_softc *sc);
    202 void		mfi_gen2_intr_ena(struct mfi_softc *sc);
    203 void		mfi_gen2_intr_dis(struct mfi_softc *sc);
    204 int		mfi_gen2_intr(struct mfi_softc *sc);
    205 void		mfi_gen2_post(struct mfi_softc *sc, struct mfi_ccb *ccb);
    206 
    207 static const struct mfi_iop_ops mfi_iop_gen2 = {
    208 	mfi_gen2_fw_state,
    209 	mfi_gen2_intr_dis,
    210 	mfi_gen2_intr_ena,
    211 	mfi_gen2_intr,
    212 	mfi_gen2_post,
    213 	mfi_scsi_ld_io,
    214 };
    215 
    216 u_int32_t	mfi_skinny_fw_state(struct mfi_softc *);
    217 void		mfi_skinny_intr_dis(struct mfi_softc *);
    218 void		mfi_skinny_intr_ena(struct mfi_softc *);
    219 int		mfi_skinny_intr(struct mfi_softc *);
    220 void		mfi_skinny_post(struct mfi_softc *, struct mfi_ccb *);
    221 
    222 static const struct mfi_iop_ops mfi_iop_skinny = {
    223 	mfi_skinny_fw_state,
    224 	mfi_skinny_intr_dis,
    225 	mfi_skinny_intr_ena,
    226 	mfi_skinny_intr,
    227 	mfi_skinny_post,
    228 	mfi_scsi_ld_io,
    229 };
    230 
    231 static int	mfi_tbolt_init_desc_pool(struct mfi_softc *);
    232 static int	mfi_tbolt_init_MFI_queue(struct mfi_softc *);
    233 static void	mfi_tbolt_build_mpt_ccb(struct mfi_ccb *);
    234 int		mfi_tbolt_scsi_ld_io(struct mfi_ccb *, struct scsipi_xfer *,
    235 		    uint64_t, uint32_t);
    236 static void	mfi_tbolt_scsi_ld_done(struct mfi_ccb *);
    237 static int	mfi_tbolt_create_sgl(struct mfi_ccb *, int);
    238 void		mfi_tbolt_sync_map_info(struct work *, void *);
    239 static void	mfi_sync_map_complete(struct mfi_ccb *);
    240 
    241 u_int32_t	mfi_tbolt_fw_state(struct mfi_softc *);
    242 void		mfi_tbolt_intr_dis(struct mfi_softc *);
    243 void		mfi_tbolt_intr_ena(struct mfi_softc *);
    244 int		mfi_tbolt_intr(struct mfi_softc *sc);
    245 void		mfi_tbolt_post(struct mfi_softc *, struct mfi_ccb *);
    246 
    247 static const struct mfi_iop_ops mfi_iop_tbolt = {
    248 	mfi_tbolt_fw_state,
    249 	mfi_tbolt_intr_dis,
    250 	mfi_tbolt_intr_ena,
    251 	mfi_tbolt_intr,
    252 	mfi_tbolt_post,
    253 	mfi_tbolt_scsi_ld_io,
    254 };
    255 
    256 #define mfi_fw_state(_s) 	((_s)->sc_iop->mio_fw_state(_s))
    257 #define mfi_intr_enable(_s) 	((_s)->sc_iop->mio_intr_ena(_s))
    258 #define mfi_intr_disable(_s) 	((_s)->sc_iop->mio_intr_dis(_s))
    259 #define mfi_my_intr(_s) 	((_s)->sc_iop->mio_intr(_s))
    260 #define mfi_post(_s, _c) 	((_s)->sc_iop->mio_post((_s), (_c)))
    261 
    262 static struct mfi_ccb *
    263 mfi_get_ccb(struct mfi_softc *sc)
    264 {
    265 	struct mfi_ccb		*ccb;
    266 	int			s;
    267 
    268 	s = splbio();
    269 	ccb = TAILQ_FIRST(&sc->sc_ccb_freeq);
    270 	if (ccb) {
    271 		TAILQ_REMOVE(&sc->sc_ccb_freeq, ccb, ccb_link);
    272 		ccb->ccb_state = MFI_CCB_READY;
    273 	}
    274 	splx(s);
    275 
    276 	DNPRINTF(MFI_D_CCB, "%s: mfi_get_ccb: %p\n", DEVNAME(sc), ccb);
    277 	if (ccb == NULL)
    278 		aprint_error_dev(sc->sc_dev, "out of ccb\n");
    279 
    280 	return ccb;
    281 }
    282 
    283 static void
    284 mfi_put_ccb(struct mfi_ccb *ccb)
    285 {
    286 	struct mfi_softc	*sc = ccb->ccb_sc;
    287 	struct mfi_frame_header	*hdr = &ccb->ccb_frame->mfr_header;
    288 	int			s;
    289 
    290 	DNPRINTF(MFI_D_CCB, "%s: mfi_put_ccb: %p\n", DEVNAME(sc), ccb);
    291 
    292 	hdr->mfh_cmd_status = 0x0;
    293 	hdr->mfh_flags = 0x0;
    294 	ccb->ccb_state = MFI_CCB_FREE;
    295 	ccb->ccb_xs = NULL;
    296 	ccb->ccb_flags = 0;
    297 	ccb->ccb_done = NULL;
    298 	ccb->ccb_direction = 0;
    299 	ccb->ccb_frame_size = 0;
    300 	ccb->ccb_extra_frames = 0;
    301 	ccb->ccb_sgl = NULL;
    302 	ccb->ccb_data = NULL;
    303 	ccb->ccb_len = 0;
    304 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
    305 		/* erase tb_request_desc but preserve SMID */
    306 		int index = ccb->ccb_tb_request_desc.header.SMID;
    307 		ccb->ccb_tb_request_desc.words = 0;
    308 		ccb->ccb_tb_request_desc.header.SMID = index;
    309 	}
    310 	s = splbio();
    311 	TAILQ_INSERT_TAIL(&sc->sc_ccb_freeq, ccb, ccb_link);
    312 	splx(s);
    313 }
    314 
    315 static int
    316 mfi_destroy_ccb(struct mfi_softc *sc)
    317 {
    318 	struct mfi_ccb		*ccb;
    319 	uint32_t		i;
    320 
    321 	DNPRINTF(MFI_D_CCB, "%s: mfi_destroy_ccb\n", DEVNAME(sc));
    322 
    323 
    324 	for (i = 0; (ccb = mfi_get_ccb(sc)) != NULL; i++) {
    325 		/* create a dma map for transfer */
    326 		bus_dmamap_destroy(sc->sc_datadmat, ccb->ccb_dmamap);
    327 	}
    328 
    329 	if (i < sc->sc_max_cmds)
    330 		return EBUSY;
    331 
    332 	free(sc->sc_ccb, M_DEVBUF);
    333 
    334 	return 0;
    335 }
    336 
    337 static int
    338 mfi_init_ccb(struct mfi_softc *sc)
    339 {
    340 	struct mfi_ccb		*ccb;
    341 	uint32_t		i;
    342 	int			error;
    343 	bus_addr_t		io_req_base_phys;
    344 	uint8_t			*io_req_base;
    345 	int offset;
    346 
    347 	DNPRINTF(MFI_D_CCB, "%s: mfi_init_ccb\n", DEVNAME(sc));
    348 
    349 	sc->sc_ccb = malloc(sizeof(struct mfi_ccb) * sc->sc_max_cmds,
    350 	    M_DEVBUF, M_WAITOK|M_ZERO);
    351 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
    352 		/*
    353 		 * The first 256 bytes (SMID 0) is not used.
    354 		 * Don't add to the cmd list.
    355 		 */
    356 		io_req_base = (uint8_t *)MFIMEM_KVA(sc->sc_tbolt_reqmsgpool) +
    357 			MEGASAS_THUNDERBOLT_NEW_MSG_SIZE;
    358 		io_req_base_phys = MFIMEM_DVA(sc->sc_tbolt_reqmsgpool) +
    359 			MEGASAS_THUNDERBOLT_NEW_MSG_SIZE;
    360 	}
    361 
    362 	for (i = 0; i < sc->sc_max_cmds; i++) {
    363 		ccb = &sc->sc_ccb[i];
    364 
    365 		ccb->ccb_sc = sc;
    366 
    367 		/* select i'th frame */
    368 		ccb->ccb_frame = (union mfi_frame *)
    369 		    ((char*)MFIMEM_KVA(sc->sc_frames) + sc->sc_frames_size * i);
    370 		ccb->ccb_pframe =
    371 		    MFIMEM_DVA(sc->sc_frames) + sc->sc_frames_size * i;
    372 		ccb->ccb_frame->mfr_header.mfh_context = i;
    373 
    374 		/* select i'th sense */
    375 		ccb->ccb_sense = (struct mfi_sense *)
    376 		    ((char*)MFIMEM_KVA(sc->sc_sense) + MFI_SENSE_SIZE * i);
    377 		ccb->ccb_psense =
    378 		    (MFIMEM_DVA(sc->sc_sense) + MFI_SENSE_SIZE * i);
    379 
    380 		/* create a dma map for transfer */
    381 		error = bus_dmamap_create(sc->sc_datadmat,
    382 		    MAXPHYS, sc->sc_max_sgl, MAXPHYS, 0,
    383 		    BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &ccb->ccb_dmamap);
    384 		if (error) {
    385 			aprint_error_dev(sc->sc_dev,
    386 			    "cannot create ccb dmamap (%d)\n", error);
    387 			goto destroy;
    388 		}
    389 		if (sc->sc_ioptype == MFI_IOP_TBOLT) {
    390 			offset = MEGASAS_THUNDERBOLT_NEW_MSG_SIZE * i;
    391 			ccb->ccb_tb_io_request =
    392 			    (struct mfi_mpi2_request_raid_scsi_io *)
    393 			    (io_req_base + offset);
    394 			ccb->ccb_tb_pio_request =
    395 			    io_req_base_phys + offset;
    396 			offset = MEGASAS_MAX_SZ_CHAIN_FRAME * i;
    397 			ccb->ccb_tb_sg_frame =
    398 			    (mpi2_sge_io_union *)(sc->sc_reply_pool_limit +
    399 			    offset);
    400 			ccb->ccb_tb_psg_frame = sc->sc_sg_frame_busaddr +
    401 			    offset;
    402 			/* SMID 0 is reserved. Set SMID/index from 1 */
    403 			ccb->ccb_tb_request_desc.header.SMID = i + 1;
    404 		}
    405 
    406 		DNPRINTF(MFI_D_CCB,
    407 		    "ccb(%d): %p frame: %#lx (%#lx) sense: %#lx (%#lx) map: %#lx\n",
    408 		    ccb->ccb_frame->mfr_header.mfh_context, ccb,
    409 		    (u_long)ccb->ccb_frame, (u_long)ccb->ccb_pframe,
    410 		    (u_long)ccb->ccb_sense, (u_long)ccb->ccb_psense,
    411 		    (u_long)ccb->ccb_dmamap);
    412 
    413 		/* add ccb to queue */
    414 		mfi_put_ccb(ccb);
    415 	}
    416 
    417 	return 0;
    418 destroy:
    419 	/* free dma maps and ccb memory */
    420 	while (i) {
    421 		i--;
    422 		ccb = &sc->sc_ccb[i];
    423 		bus_dmamap_destroy(sc->sc_datadmat, ccb->ccb_dmamap);
    424 	}
    425 
    426 	free(sc->sc_ccb, M_DEVBUF);
    427 
    428 	return 1;
    429 }
    430 
    431 static uint32_t
    432 mfi_read(struct mfi_softc *sc, bus_size_t r)
    433 {
    434 	uint32_t rv;
    435 
    436 	bus_space_barrier(sc->sc_iot, sc->sc_ioh, r, 4,
    437 	    BUS_SPACE_BARRIER_READ);
    438 	rv = bus_space_read_4(sc->sc_iot, sc->sc_ioh, r);
    439 
    440 	DNPRINTF(MFI_D_RW, "%s: mr 0x%lx 0x08%x ", DEVNAME(sc), (u_long)r, rv);
    441 	return rv;
    442 }
    443 
    444 static void
    445 mfi_write(struct mfi_softc *sc, bus_size_t r, uint32_t v)
    446 {
    447 	DNPRINTF(MFI_D_RW, "%s: mw 0x%lx 0x%08x", DEVNAME(sc), (u_long)r, v);
    448 
    449 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, r, v);
    450 	bus_space_barrier(sc->sc_iot, sc->sc_ioh, r, 4,
    451 	    BUS_SPACE_BARRIER_WRITE);
    452 }
    453 
    454 static struct mfi_mem *
    455 mfi_allocmem(struct mfi_softc *sc, size_t size)
    456 {
    457 	struct mfi_mem		*mm;
    458 	int			nsegs;
    459 
    460 	DNPRINTF(MFI_D_MEM, "%s: mfi_allocmem: %ld\n", DEVNAME(sc),
    461 	    (long)size);
    462 
    463 	mm = malloc(sizeof(struct mfi_mem), M_DEVBUF, M_NOWAIT|M_ZERO);
    464 	if (mm == NULL)
    465 		return NULL;
    466 
    467 	mm->am_size = size;
    468 
    469 	if (bus_dmamap_create(sc->sc_dmat, size, 1, size, 0,
    470 	    BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &mm->am_map) != 0)
    471 		goto amfree;
    472 
    473 	if (bus_dmamem_alloc(sc->sc_dmat, size, PAGE_SIZE, 0, &mm->am_seg, 1,
    474 	    &nsegs, BUS_DMA_NOWAIT) != 0)
    475 		goto destroy;
    476 
    477 	if (bus_dmamem_map(sc->sc_dmat, &mm->am_seg, nsegs, size, &mm->am_kva,
    478 	    BUS_DMA_NOWAIT) != 0)
    479 		goto free;
    480 
    481 	if (bus_dmamap_load(sc->sc_dmat, mm->am_map, mm->am_kva, size, NULL,
    482 	    BUS_DMA_NOWAIT) != 0)
    483 		goto unmap;
    484 
    485 	DNPRINTF(MFI_D_MEM, "  kva: %p  dva: %p  map: %p\n",
    486 	    mm->am_kva, (void *)mm->am_map->dm_segs[0].ds_addr, mm->am_map);
    487 
    488 	memset(mm->am_kva, 0, size);
    489 	return mm;
    490 
    491 unmap:
    492 	bus_dmamem_unmap(sc->sc_dmat, mm->am_kva, size);
    493 free:
    494 	bus_dmamem_free(sc->sc_dmat, &mm->am_seg, 1);
    495 destroy:
    496 	bus_dmamap_destroy(sc->sc_dmat, mm->am_map);
    497 amfree:
    498 	free(mm, M_DEVBUF);
    499 
    500 	return NULL;
    501 }
    502 
    503 static void
    504 mfi_freemem(struct mfi_softc *sc, struct mfi_mem **mmp)
    505 {
    506 	struct mfi_mem *mm = *mmp;
    507 
    508 	if (mm == NULL)
    509 		return;
    510 
    511 	*mmp = NULL;
    512 
    513 	DNPRINTF(MFI_D_MEM, "%s: mfi_freemem: %p\n", DEVNAME(sc), mm);
    514 
    515 	bus_dmamap_unload(sc->sc_dmat, mm->am_map);
    516 	bus_dmamem_unmap(sc->sc_dmat, mm->am_kva, mm->am_size);
    517 	bus_dmamem_free(sc->sc_dmat, &mm->am_seg, 1);
    518 	bus_dmamap_destroy(sc->sc_dmat, mm->am_map);
    519 	free(mm, M_DEVBUF);
    520 }
    521 
    522 static int
    523 mfi_transition_firmware(struct mfi_softc *sc)
    524 {
    525 	uint32_t		fw_state, cur_state;
    526 	int			max_wait, i;
    527 
    528 	fw_state = mfi_fw_state(sc) & MFI_STATE_MASK;
    529 
    530 	DNPRINTF(MFI_D_CMD, "%s: mfi_transition_firmware: %#x\n", DEVNAME(sc),
    531 	    fw_state);
    532 
    533 	while (fw_state != MFI_STATE_READY) {
    534 		DNPRINTF(MFI_D_MISC,
    535 		    "%s: waiting for firmware to become ready\n",
    536 		    DEVNAME(sc));
    537 		cur_state = fw_state;
    538 		switch (fw_state) {
    539 		case MFI_STATE_FAULT:
    540 			aprint_error_dev(sc->sc_dev, "firmware fault\n");
    541 			return 1;
    542 		case MFI_STATE_WAIT_HANDSHAKE:
    543 			if (sc->sc_ioptype == MFI_IOP_SKINNY ||
    544 			    sc->sc_ioptype == MFI_IOP_TBOLT)
    545 				mfi_write(sc, MFI_SKINNY_IDB, MFI_INIT_CLEAR_HANDSHAKE);
    546 			else
    547 				mfi_write(sc, MFI_IDB, MFI_INIT_CLEAR_HANDSHAKE);
    548 			max_wait = 2;
    549 			break;
    550 		case MFI_STATE_OPERATIONAL:
    551 			if (sc->sc_ioptype == MFI_IOP_SKINNY ||
    552 			    sc->sc_ioptype == MFI_IOP_TBOLT)
    553 				mfi_write(sc, MFI_SKINNY_IDB, MFI_INIT_READY);
    554 			else
    555 				mfi_write(sc, MFI_IDB, MFI_INIT_READY);
    556 			max_wait = 10;
    557 			break;
    558 		case MFI_STATE_UNDEFINED:
    559 		case MFI_STATE_BB_INIT:
    560 			max_wait = 2;
    561 			break;
    562 		case MFI_STATE_FW_INIT:
    563 		case MFI_STATE_DEVICE_SCAN:
    564 		case MFI_STATE_FLUSH_CACHE:
    565 			max_wait = 20;
    566 			break;
    567 		case MFI_STATE_BOOT_MESSAGE_PENDING:
    568 			if (sc->sc_ioptype == MFI_IOP_TBOLT) {
    569 				mfi_write(sc, MFI_SKINNY_IDB, MFI_INIT_HOTPLUG);
    570 				max_wait = 180;
    571 				break;
    572 			}
    573 			/* FALLTHROUGH */
    574 		default:
    575 			aprint_error_dev(sc->sc_dev,
    576 			    "unknown firmware state %d\n", fw_state);
    577 			return 1;
    578 		}
    579 		for (i = 0; i < (max_wait * 10); i++) {
    580 			fw_state = mfi_fw_state(sc) & MFI_STATE_MASK;
    581 			if (fw_state == cur_state)
    582 				DELAY(100000);
    583 			else
    584 				break;
    585 		}
    586 		if (fw_state == cur_state) {
    587 			aprint_error_dev(sc->sc_dev,
    588 			    "firmware stuck in state %#x\n", fw_state);
    589 			return 1;
    590 		}
    591 	}
    592 
    593 	return 0;
    594 }
    595 
    596 static int
    597 mfi_initialize_firmware(struct mfi_softc *sc)
    598 {
    599 	struct mfi_ccb		*ccb;
    600 	struct mfi_init_frame	*init;
    601 	struct mfi_init_qinfo	*qinfo;
    602 
    603 	DNPRINTF(MFI_D_MISC, "%s: mfi_initialize_firmware\n", DEVNAME(sc));
    604 
    605 	if ((ccb = mfi_get_ccb(sc)) == NULL)
    606 		return 1;
    607 
    608 	init = &ccb->ccb_frame->mfr_init;
    609 	qinfo = (struct mfi_init_qinfo *)((uint8_t *)init + MFI_FRAME_SIZE);
    610 
    611 	memset(qinfo, 0, sizeof *qinfo);
    612 	qinfo->miq_rq_entries = sc->sc_max_cmds + 1;
    613 	qinfo->miq_rq_addr_lo = htole32(MFIMEM_DVA(sc->sc_pcq) +
    614 	    offsetof(struct mfi_prod_cons, mpc_reply_q));
    615 	qinfo->miq_pi_addr_lo = htole32(MFIMEM_DVA(sc->sc_pcq) +
    616 	    offsetof(struct mfi_prod_cons, mpc_producer));
    617 	qinfo->miq_ci_addr_lo = htole32(MFIMEM_DVA(sc->sc_pcq) +
    618 	    offsetof(struct mfi_prod_cons, mpc_consumer));
    619 
    620 	init->mif_header.mfh_cmd = MFI_CMD_INIT;
    621 	init->mif_header.mfh_data_len = sizeof *qinfo;
    622 	init->mif_qinfo_new_addr_lo = htole32(ccb->ccb_pframe + MFI_FRAME_SIZE);
    623 
    624 	DNPRINTF(MFI_D_MISC, "%s: entries: %#x rq: %#x pi: %#x ci: %#x\n",
    625 	    DEVNAME(sc),
    626 	    qinfo->miq_rq_entries, qinfo->miq_rq_addr_lo,
    627 	    qinfo->miq_pi_addr_lo, qinfo->miq_ci_addr_lo);
    628 
    629 	if (mfi_poll(ccb)) {
    630 		aprint_error_dev(sc->sc_dev,
    631 		    "mfi_initialize_firmware failed\n");
    632 		return 1;
    633 	}
    634 
    635 	mfi_put_ccb(ccb);
    636 
    637 	return 0;
    638 }
    639 
    640 static int
    641 mfi_get_info(struct mfi_softc *sc)
    642 {
    643 #ifdef MFI_DEBUG
    644 	int i;
    645 #endif
    646 	DNPRINTF(MFI_D_MISC, "%s: mfi_get_info\n", DEVNAME(sc));
    647 
    648 	if (mfi_mgmt_internal(sc, MR_DCMD_CTRL_GET_INFO, MFI_DATA_IN,
    649 	    sizeof(sc->sc_info), &sc->sc_info, NULL))
    650 		return 1;
    651 
    652 #ifdef MFI_DEBUG
    653 
    654 	for (i = 0; i < sc->sc_info.mci_image_component_count; i++) {
    655 		printf("%s: active FW %s Version %s date %s time %s\n",
    656 		    DEVNAME(sc),
    657 		    sc->sc_info.mci_image_component[i].mic_name,
    658 		    sc->sc_info.mci_image_component[i].mic_version,
    659 		    sc->sc_info.mci_image_component[i].mic_build_date,
    660 		    sc->sc_info.mci_image_component[i].mic_build_time);
    661 	}
    662 
    663 	for (i = 0; i < sc->sc_info.mci_pending_image_component_count; i++) {
    664 		printf("%s: pending FW %s Version %s date %s time %s\n",
    665 		    DEVNAME(sc),
    666 		    sc->sc_info.mci_pending_image_component[i].mic_name,
    667 		    sc->sc_info.mci_pending_image_component[i].mic_version,
    668 		    sc->sc_info.mci_pending_image_component[i].mic_build_date,
    669 		    sc->sc_info.mci_pending_image_component[i].mic_build_time);
    670 	}
    671 
    672 	printf("%s: max_arms %d max_spans %d max_arrs %d max_lds %d name %s\n",
    673 	    DEVNAME(sc),
    674 	    sc->sc_info.mci_max_arms,
    675 	    sc->sc_info.mci_max_spans,
    676 	    sc->sc_info.mci_max_arrays,
    677 	    sc->sc_info.mci_max_lds,
    678 	    sc->sc_info.mci_product_name);
    679 
    680 	printf("%s: serial %s present %#x fw time %d max_cmds %d max_sg %d\n",
    681 	    DEVNAME(sc),
    682 	    sc->sc_info.mci_serial_number,
    683 	    sc->sc_info.mci_hw_present,
    684 	    sc->sc_info.mci_current_fw_time,
    685 	    sc->sc_info.mci_max_cmds,
    686 	    sc->sc_info.mci_max_sg_elements);
    687 
    688 	printf("%s: max_rq %d lds_pres %d lds_deg %d lds_off %d pd_pres %d\n",
    689 	    DEVNAME(sc),
    690 	    sc->sc_info.mci_max_request_size,
    691 	    sc->sc_info.mci_lds_present,
    692 	    sc->sc_info.mci_lds_degraded,
    693 	    sc->sc_info.mci_lds_offline,
    694 	    sc->sc_info.mci_pd_present);
    695 
    696 	printf("%s: pd_dsk_prs %d pd_dsk_pred_fail %d pd_dsk_fail %d\n",
    697 	    DEVNAME(sc),
    698 	    sc->sc_info.mci_pd_disks_present,
    699 	    sc->sc_info.mci_pd_disks_pred_failure,
    700 	    sc->sc_info.mci_pd_disks_failed);
    701 
    702 	printf("%s: nvram %d mem %d flash %d\n",
    703 	    DEVNAME(sc),
    704 	    sc->sc_info.mci_nvram_size,
    705 	    sc->sc_info.mci_memory_size,
    706 	    sc->sc_info.mci_flash_size);
    707 
    708 	printf("%s: ram_cor %d ram_uncor %d clus_all %d clus_act %d\n",
    709 	    DEVNAME(sc),
    710 	    sc->sc_info.mci_ram_correctable_errors,
    711 	    sc->sc_info.mci_ram_uncorrectable_errors,
    712 	    sc->sc_info.mci_cluster_allowed,
    713 	    sc->sc_info.mci_cluster_active);
    714 
    715 	printf("%s: max_strps_io %d raid_lvl %#x adapt_ops %#x ld_ops %#x\n",
    716 	    DEVNAME(sc),
    717 	    sc->sc_info.mci_max_strips_per_io,
    718 	    sc->sc_info.mci_raid_levels,
    719 	    sc->sc_info.mci_adapter_ops,
    720 	    sc->sc_info.mci_ld_ops);
    721 
    722 	printf("%s: strp_sz_min %d strp_sz_max %d pd_ops %#x pd_mix %#x\n",
    723 	    DEVNAME(sc),
    724 	    sc->sc_info.mci_stripe_sz_ops.min,
    725 	    sc->sc_info.mci_stripe_sz_ops.max,
    726 	    sc->sc_info.mci_pd_ops,
    727 	    sc->sc_info.mci_pd_mix_support);
    728 
    729 	printf("%s: ecc_bucket %d pckg_prop %s\n",
    730 	    DEVNAME(sc),
    731 	    sc->sc_info.mci_ecc_bucket_count,
    732 	    sc->sc_info.mci_package_version);
    733 
    734 	printf("%s: sq_nm %d prd_fail_poll %d intr_thrtl %d intr_thrtl_to %d\n",
    735 	    DEVNAME(sc),
    736 	    sc->sc_info.mci_properties.mcp_seq_num,
    737 	    sc->sc_info.mci_properties.mcp_pred_fail_poll_interval,
    738 	    sc->sc_info.mci_properties.mcp_intr_throttle_cnt,
    739 	    sc->sc_info.mci_properties.mcp_intr_throttle_timeout);
    740 
    741 	printf("%s: rbld_rate %d patr_rd_rate %d bgi_rate %d cc_rate %d\n",
    742 	    DEVNAME(sc),
    743 	    sc->sc_info.mci_properties.mcp_rebuild_rate,
    744 	    sc->sc_info.mci_properties.mcp_patrol_read_rate,
    745 	    sc->sc_info.mci_properties.mcp_bgi_rate,
    746 	    sc->sc_info.mci_properties.mcp_cc_rate);
    747 
    748 	printf("%s: rc_rate %d ch_flsh %d spin_cnt %d spin_dly %d clus_en %d\n",
    749 	    DEVNAME(sc),
    750 	    sc->sc_info.mci_properties.mcp_recon_rate,
    751 	    sc->sc_info.mci_properties.mcp_cache_flush_interval,
    752 	    sc->sc_info.mci_properties.mcp_spinup_drv_cnt,
    753 	    sc->sc_info.mci_properties.mcp_spinup_delay,
    754 	    sc->sc_info.mci_properties.mcp_cluster_enable);
    755 
    756 	printf("%s: coerc %d alarm %d dis_auto_rbld %d dis_bat_wrn %d ecc %d\n",
    757 	    DEVNAME(sc),
    758 	    sc->sc_info.mci_properties.mcp_coercion_mode,
    759 	    sc->sc_info.mci_properties.mcp_alarm_enable,
    760 	    sc->sc_info.mci_properties.mcp_disable_auto_rebuild,
    761 	    sc->sc_info.mci_properties.mcp_disable_battery_warn,
    762 	    sc->sc_info.mci_properties.mcp_ecc_bucket_size);
    763 
    764 	printf("%s: ecc_leak %d rest_hs %d exp_encl_dev %d\n",
    765 	    DEVNAME(sc),
    766 	    sc->sc_info.mci_properties.mcp_ecc_bucket_leak_rate,
    767 	    sc->sc_info.mci_properties.mcp_restore_hotspare_on_insertion,
    768 	    sc->sc_info.mci_properties.mcp_expose_encl_devices);
    769 
    770 	printf("%s: vendor %#x device %#x subvendor %#x subdevice %#x\n",
    771 	    DEVNAME(sc),
    772 	    sc->sc_info.mci_pci.mip_vendor,
    773 	    sc->sc_info.mci_pci.mip_device,
    774 	    sc->sc_info.mci_pci.mip_subvendor,
    775 	    sc->sc_info.mci_pci.mip_subdevice);
    776 
    777 	printf("%s: type %#x port_count %d port_addr ",
    778 	    DEVNAME(sc),
    779 	    sc->sc_info.mci_host.mih_type,
    780 	    sc->sc_info.mci_host.mih_port_count);
    781 
    782 	for (i = 0; i < 8; i++)
    783 		printf("%.0lx ", sc->sc_info.mci_host.mih_port_addr[i]);
    784 	printf("\n");
    785 
    786 	printf("%s: type %.x port_count %d port_addr ",
    787 	    DEVNAME(sc),
    788 	    sc->sc_info.mci_device.mid_type,
    789 	    sc->sc_info.mci_device.mid_port_count);
    790 
    791 	for (i = 0; i < 8; i++)
    792 		printf("%.0lx ", sc->sc_info.mci_device.mid_port_addr[i]);
    793 	printf("\n");
    794 #endif /* MFI_DEBUG */
    795 
    796 	return 0;
    797 }
    798 
    799 static void
    800 mfiminphys(struct buf *bp)
    801 {
    802 	DNPRINTF(MFI_D_MISC, "mfiminphys: %d\n", bp->b_bcount);
    803 
    804 	/* XXX currently using MFI_MAXFER = MAXPHYS */
    805 	if (bp->b_bcount > MFI_MAXFER)
    806 		bp->b_bcount = MFI_MAXFER;
    807 	minphys(bp);
    808 }
    809 
    810 int
    811 mfi_rescan(device_t self, const char *ifattr, const int *locators)
    812 {
    813 	struct mfi_softc *sc = device_private(self);
    814 
    815 	if (sc->sc_child != NULL)
    816 		return 0;
    817 
    818 	sc->sc_child = config_found_sm_loc(self, ifattr, locators, &sc->sc_chan,
    819 	    scsiprint, NULL);
    820 
    821 	return 0;
    822 }
    823 
    824 void
    825 mfi_childdetached(device_t self, device_t child)
    826 {
    827 	struct mfi_softc *sc = device_private(self);
    828 
    829 	KASSERT(self == sc->sc_dev);
    830 	KASSERT(child == sc->sc_child);
    831 
    832 	if (child == sc->sc_child)
    833 		sc->sc_child = NULL;
    834 }
    835 
    836 int
    837 mfi_detach(struct mfi_softc *sc, int flags)
    838 {
    839 	int			error;
    840 
    841 	DNPRINTF(MFI_D_MISC, "%s: mfi_detach\n", DEVNAME(sc));
    842 
    843 	if ((error = config_detach_children(sc->sc_dev, flags)) != 0)
    844 		return error;
    845 
    846 #if NBIO > 0
    847 	mfi_destroy_sensors(sc);
    848 	bio_unregister(sc->sc_dev);
    849 #endif /* NBIO > 0 */
    850 
    851 	mfi_intr_disable(sc);
    852 
    853 	/* TBD: shutdown firmware */
    854 
    855 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
    856 		workqueue_destroy(sc->sc_ldsync_wq);
    857 		mfi_put_ccb(sc->sc_ldsync_ccb);
    858 		mfi_freemem(sc, &sc->sc_tbolt_reqmsgpool);
    859 		mfi_freemem(sc, &sc->sc_tbolt_ioc_init);
    860 		mfi_freemem(sc, &sc->sc_tbolt_verbuf);
    861 	}
    862 
    863 	if ((error = mfi_destroy_ccb(sc)) != 0)
    864 		return error;
    865 
    866 	mfi_freemem(sc, &sc->sc_sense);
    867 
    868 	mfi_freemem(sc, &sc->sc_frames);
    869 
    870 	mfi_freemem(sc, &sc->sc_pcq);
    871 
    872 	return 0;
    873 }
    874 
    875 int
    876 mfi_attach(struct mfi_softc *sc, enum mfi_iop iop)
    877 {
    878 	struct scsipi_adapter *adapt = &sc->sc_adapt;
    879 	struct scsipi_channel *chan = &sc->sc_chan;
    880 	uint32_t		status, frames, max_sgl;
    881 	int			i;
    882 
    883 	DNPRINTF(MFI_D_MISC, "%s: mfi_attach\n", DEVNAME(sc));
    884 
    885 	sc->sc_ioptype = iop;
    886 
    887 	switch (iop) {
    888 	case MFI_IOP_XSCALE:
    889 		sc->sc_iop = &mfi_iop_xscale;
    890 		break;
    891 	case MFI_IOP_PPC:
    892 		sc->sc_iop = &mfi_iop_ppc;
    893 		break;
    894 	case MFI_IOP_GEN2:
    895 		sc->sc_iop = &mfi_iop_gen2;
    896 		break;
    897 	case MFI_IOP_SKINNY:
    898 		sc->sc_iop = &mfi_iop_skinny;
    899 		break;
    900 	case MFI_IOP_TBOLT:
    901 		sc->sc_iop = &mfi_iop_tbolt;
    902 		break;
    903 	default:
    904 		 panic("%s: unknown iop %d", DEVNAME(sc), iop);
    905 	}
    906 
    907 	if (mfi_transition_firmware(sc))
    908 		return 1;
    909 
    910 	TAILQ_INIT(&sc->sc_ccb_freeq);
    911 
    912 	status = mfi_fw_state(sc);
    913 	sc->sc_max_cmds = status & MFI_STATE_MAXCMD_MASK;
    914 	max_sgl = (status & MFI_STATE_MAXSGL_MASK) >> 16;
    915 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
    916 		sc->sc_max_sgl = min(max_sgl, (128 * 1024) / PAGE_SIZE + 1);
    917 		sc->sc_sgl_size = sizeof(struct mfi_sg_ieee);
    918 	} else if (sc->sc_64bit_dma) {
    919 		sc->sc_max_sgl = min(max_sgl, (128 * 1024) / PAGE_SIZE + 1);
    920 		sc->sc_sgl_size = sizeof(struct mfi_sg64);
    921 	} else {
    922 		sc->sc_max_sgl = max_sgl;
    923 		sc->sc_sgl_size = sizeof(struct mfi_sg32);
    924 	}
    925 	DNPRINTF(MFI_D_MISC, "%s: max commands: %u, max sgl: %u\n",
    926 	    DEVNAME(sc), sc->sc_max_cmds, sc->sc_max_sgl);
    927 
    928 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
    929 		uint32_t tb_mem_size;
    930 		/* for Alignment */
    931 		tb_mem_size = MEGASAS_THUNDERBOLT_MSG_ALLIGNMENT;
    932 
    933 		tb_mem_size +=
    934 		    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE * (sc->sc_max_cmds + 1);
    935 		sc->sc_reply_pool_size =
    936 		    ((sc->sc_max_cmds + 1 + 15) / 16) * 16;
    937 		tb_mem_size +=
    938 		    MEGASAS_THUNDERBOLT_REPLY_SIZE * sc->sc_reply_pool_size;
    939 
    940 		/* this is for SGL's */
    941 		tb_mem_size += MEGASAS_MAX_SZ_CHAIN_FRAME * sc->sc_max_cmds;
    942 		sc->sc_tbolt_reqmsgpool = mfi_allocmem(sc, tb_mem_size);
    943 		if (sc->sc_tbolt_reqmsgpool == NULL) {
    944 			aprint_error_dev(sc->sc_dev,
    945 			    "unable to allocate thunderbolt "
    946 			    "request message pool\n");
    947 			goto nopcq;
    948 		}
    949 		if (mfi_tbolt_init_desc_pool(sc)) {
    950 			aprint_error_dev(sc->sc_dev,
    951 			    "Thunderbolt pool preparation error\n");
    952 			goto nopcq;
    953 		}
    954 
    955 		/*
    956 		 * Allocate DMA memory mapping for MPI2 IOC Init descriptor,
    957 		 * we are taking it diffrent from what we have allocated for
    958 		 * Request and reply descriptors to avoid confusion later
    959 		 */
    960 		sc->sc_tbolt_ioc_init = mfi_allocmem(sc,
    961 		    sizeof(struct mpi2_ioc_init_request));
    962 		if (sc->sc_tbolt_ioc_init == NULL) {
    963 			aprint_error_dev(sc->sc_dev,
    964 			    "unable to allocate thunderbolt IOC init memory");
    965 			goto nopcq;
    966 		}
    967 
    968 		sc->sc_tbolt_verbuf = mfi_allocmem(sc,
    969 		    MEGASAS_MAX_NAME*sizeof(bus_addr_t));
    970 		if (sc->sc_tbolt_verbuf == NULL) {
    971 			aprint_error_dev(sc->sc_dev,
    972 			    "unable to allocate thunderbolt version buffer\n");
    973 			goto nopcq;
    974 		}
    975 
    976 	}
    977 	/* consumer/producer and reply queue memory */
    978 	sc->sc_pcq = mfi_allocmem(sc, (sizeof(uint32_t) * sc->sc_max_cmds) +
    979 	    sizeof(struct mfi_prod_cons));
    980 	if (sc->sc_pcq == NULL) {
    981 		aprint_error_dev(sc->sc_dev,
    982 		    "unable to allocate reply queue memory\n");
    983 		goto nopcq;
    984 	}
    985 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_pcq), 0,
    986 	    sizeof(uint32_t) * sc->sc_max_cmds + sizeof(struct mfi_prod_cons),
    987 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
    988 
    989 	/* frame memory */
    990 	frames = (sc->sc_sgl_size * sc->sc_max_sgl + MFI_FRAME_SIZE - 1) /
    991 	    MFI_FRAME_SIZE + 1;
    992 	sc->sc_frames_size = frames * MFI_FRAME_SIZE;
    993 	sc->sc_frames = mfi_allocmem(sc, sc->sc_frames_size * sc->sc_max_cmds);
    994 	if (sc->sc_frames == NULL) {
    995 		aprint_error_dev(sc->sc_dev,
    996 		    "unable to allocate frame memory\n");
    997 		goto noframe;
    998 	}
    999 	/* XXX hack, fix this */
   1000 	if (MFIMEM_DVA(sc->sc_frames) & 0x3f) {
   1001 		aprint_error_dev(sc->sc_dev,
   1002 		    "improper frame alignment (%#llx) FIXME\n",
   1003 		    (long long int)MFIMEM_DVA(sc->sc_frames));
   1004 		goto noframe;
   1005 	}
   1006 
   1007 	/* sense memory */
   1008 	sc->sc_sense = mfi_allocmem(sc, sc->sc_max_cmds * MFI_SENSE_SIZE);
   1009 	if (sc->sc_sense == NULL) {
   1010 		aprint_error_dev(sc->sc_dev,
   1011 		    "unable to allocate sense memory\n");
   1012 		goto nosense;
   1013 	}
   1014 
   1015 	/* now that we have all memory bits go initialize ccbs */
   1016 	if (mfi_init_ccb(sc)) {
   1017 		aprint_error_dev(sc->sc_dev, "could not init ccb list\n");
   1018 		goto noinit;
   1019 	}
   1020 
   1021 	/* kickstart firmware with all addresses and pointers */
   1022 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
   1023 		if (mfi_tbolt_init_MFI_queue(sc)) {
   1024 			aprint_error_dev(sc->sc_dev,
   1025 			    "could not initialize firmware\n");
   1026 			goto noinit;
   1027 		}
   1028 	} else {
   1029 		if (mfi_initialize_firmware(sc)) {
   1030 			aprint_error_dev(sc->sc_dev,
   1031 			    "could not initialize firmware\n");
   1032 			goto noinit;
   1033 		}
   1034 	}
   1035 
   1036 	if (mfi_get_info(sc)) {
   1037 		aprint_error_dev(sc->sc_dev,
   1038 		    "could not retrieve controller information\n");
   1039 		goto noinit;
   1040 	}
   1041 
   1042 	aprint_normal_dev(sc->sc_dev,
   1043 	    "logical drives %d, version %s, %dMB RAM\n",
   1044 	    sc->sc_info.mci_lds_present,
   1045 	    sc->sc_info.mci_package_version,
   1046 	    sc->sc_info.mci_memory_size);
   1047 
   1048 	sc->sc_ld_cnt = sc->sc_info.mci_lds_present;
   1049 	sc->sc_max_ld = sc->sc_ld_cnt;
   1050 	for (i = 0; i < sc->sc_ld_cnt; i++)
   1051 		sc->sc_ld[i].ld_present = 1;
   1052 
   1053 	memset(adapt, 0, sizeof(*adapt));
   1054 	adapt->adapt_dev = sc->sc_dev;
   1055 	adapt->adapt_nchannels = 1;
   1056 	/* keep a few commands for management */
   1057 	if (sc->sc_max_cmds > 4)
   1058 		adapt->adapt_openings = sc->sc_max_cmds - 4;
   1059 	else
   1060 		adapt->adapt_openings = sc->sc_max_cmds;
   1061 	adapt->adapt_max_periph = adapt->adapt_openings;
   1062 	adapt->adapt_request = mfi_scsipi_request;
   1063 	adapt->adapt_minphys = mfiminphys;
   1064 
   1065 	memset(chan, 0, sizeof(*chan));
   1066 	chan->chan_adapter = adapt;
   1067 	chan->chan_bustype = &scsi_sas_bustype;
   1068 	chan->chan_channel = 0;
   1069 	chan->chan_flags = 0;
   1070 	chan->chan_nluns = 8;
   1071 	chan->chan_ntargets = MFI_MAX_LD;
   1072 	chan->chan_id = MFI_MAX_LD;
   1073 
   1074 	mfi_rescan(sc->sc_dev, "scsi", NULL);
   1075 
   1076 	/* enable interrupts */
   1077 	mfi_intr_enable(sc);
   1078 
   1079 #if NBIO > 0
   1080 	if (bio_register(sc->sc_dev, mfi_ioctl) != 0)
   1081 		panic("%s: controller registration failed", DEVNAME(sc));
   1082 	if (mfi_create_sensors(sc) != 0)
   1083 		aprint_error_dev(sc->sc_dev, "unable to create sensors\n");
   1084 #endif /* NBIO > 0 */
   1085 
   1086 	return 0;
   1087 noinit:
   1088 	mfi_freemem(sc, &sc->sc_sense);
   1089 nosense:
   1090 	mfi_freemem(sc, &sc->sc_frames);
   1091 noframe:
   1092 	mfi_freemem(sc, &sc->sc_pcq);
   1093 nopcq:
   1094 	if (sc->sc_ioptype == MFI_IOP_TBOLT) {
   1095 		if (sc->sc_tbolt_reqmsgpool)
   1096 			mfi_freemem(sc, &sc->sc_tbolt_reqmsgpool);
   1097 		if (sc->sc_tbolt_verbuf)
   1098 			mfi_freemem(sc, &sc->sc_tbolt_verbuf);
   1099 	}
   1100 	return 1;
   1101 }
   1102 
   1103 static int
   1104 mfi_poll(struct mfi_ccb *ccb)
   1105 {
   1106 	struct mfi_softc *sc = ccb->ccb_sc;
   1107 	struct mfi_frame_header	*hdr;
   1108 	int			to = 0;
   1109 	int			rv = 0;
   1110 
   1111 	DNPRINTF(MFI_D_CMD, "%s: mfi_poll\n", DEVNAME(sc));
   1112 
   1113 	hdr = &ccb->ccb_frame->mfr_header;
   1114 	hdr->mfh_cmd_status = 0xff;
   1115 	if (!sc->sc_MFA_enabled)
   1116 		hdr->mfh_flags |= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE;
   1117 
   1118 	/* no callback, caller is supposed to do the cleanup */
   1119 	ccb->ccb_done = NULL;
   1120 
   1121 	mfi_post(sc, ccb);
   1122 	if (sc->sc_MFA_enabled) {
   1123 		/*
   1124 		 * depending on the command type, result may be posted
   1125 		 * to *hdr, or not. In addition it seems there's
   1126 		 * no way to avoid posting the SMID to the reply queue.
   1127 		 * So pool using the interrupt routine.
   1128 		 */
   1129 		 while (ccb->ccb_state != MFI_CCB_DONE) {
   1130 			delay(1000);
   1131 			if (to++ > 5000) { /* XXX 5 seconds busywait sucks */
   1132 				rv = 1;
   1133 				break;
   1134 			}
   1135 			mfi_tbolt_intrh(sc);
   1136 		 }
   1137 	} else {
   1138 		bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_frames),
   1139 		    ccb->ccb_pframe - MFIMEM_DVA(sc->sc_frames),
   1140 		    sc->sc_frames_size, BUS_DMASYNC_POSTREAD);
   1141 
   1142 		while (hdr->mfh_cmd_status == 0xff) {
   1143 			delay(1000);
   1144 			if (to++ > 5000) { /* XXX 5 seconds busywait sucks */
   1145 				rv = 1;
   1146 				break;
   1147 			}
   1148 			bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_frames),
   1149 			    ccb->ccb_pframe - MFIMEM_DVA(sc->sc_frames),
   1150 			    sc->sc_frames_size, BUS_DMASYNC_POSTREAD);
   1151 		}
   1152 	}
   1153 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_frames),
   1154 	    ccb->ccb_pframe - MFIMEM_DVA(sc->sc_frames),
   1155 	    sc->sc_frames_size, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
   1156 
   1157 	if (ccb->ccb_data != NULL) {
   1158 		DNPRINTF(MFI_D_INTR, "%s: mfi_mgmt_done sync\n",
   1159 		    DEVNAME(sc));
   1160 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   1161 		    ccb->ccb_dmamap->dm_mapsize,
   1162 		    (ccb->ccb_direction & MFI_DATA_IN) ?
   1163 		    BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
   1164 
   1165 		bus_dmamap_unload(sc->sc_datadmat, ccb->ccb_dmamap);
   1166 	}
   1167 
   1168 	if (rv != 0) {
   1169 		aprint_error_dev(sc->sc_dev, "timeout on ccb %d\n",
   1170 		    hdr->mfh_context);
   1171 		ccb->ccb_flags |= MFI_CCB_F_ERR;
   1172 		return 1;
   1173 	}
   1174 
   1175 	return 0;
   1176 }
   1177 
   1178 int
   1179 mfi_intr(void *arg)
   1180 {
   1181 	struct mfi_softc	*sc = arg;
   1182 	struct mfi_prod_cons	*pcq;
   1183 	struct mfi_ccb		*ccb;
   1184 	uint32_t		producer, consumer, ctx;
   1185 	int			claimed = 0;
   1186 
   1187 	if (!mfi_my_intr(sc))
   1188 		return 0;
   1189 
   1190 	pcq = MFIMEM_KVA(sc->sc_pcq);
   1191 
   1192 	DNPRINTF(MFI_D_INTR, "%s: mfi_intr %#lx %#lx\n", DEVNAME(sc),
   1193 	    (u_long)sc, (u_long)pcq);
   1194 
   1195 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_pcq), 0,
   1196 	    sizeof(uint32_t) * sc->sc_max_cmds + sizeof(struct mfi_prod_cons),
   1197 	    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
   1198 
   1199 	producer = pcq->mpc_producer;
   1200 	consumer = pcq->mpc_consumer;
   1201 
   1202 	while (consumer != producer) {
   1203 		DNPRINTF(MFI_D_INTR, "%s: mfi_intr pi %#x ci %#x\n",
   1204 		    DEVNAME(sc), producer, consumer);
   1205 
   1206 		ctx = pcq->mpc_reply_q[consumer];
   1207 		pcq->mpc_reply_q[consumer] = MFI_INVALID_CTX;
   1208 		if (ctx == MFI_INVALID_CTX)
   1209 			aprint_error_dev(sc->sc_dev,
   1210 			    "invalid context, p: %d c: %d\n",
   1211 			    producer, consumer);
   1212 		else {
   1213 			/* XXX remove from queue and call scsi_done */
   1214 			ccb = &sc->sc_ccb[ctx];
   1215 			DNPRINTF(MFI_D_INTR, "%s: mfi_intr context %#x\n",
   1216 			    DEVNAME(sc), ctx);
   1217 			bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_frames),
   1218 			    ccb->ccb_pframe - MFIMEM_DVA(sc->sc_frames),
   1219 			    sc->sc_frames_size,
   1220 			    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
   1221 			ccb->ccb_done(ccb);
   1222 
   1223 			claimed = 1;
   1224 		}
   1225 		consumer++;
   1226 		if (consumer == (sc->sc_max_cmds + 1))
   1227 			consumer = 0;
   1228 	}
   1229 
   1230 	pcq->mpc_consumer = consumer;
   1231 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_pcq), 0,
   1232 	    sizeof(uint32_t) * sc->sc_max_cmds + sizeof(struct mfi_prod_cons),
   1233 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   1234 
   1235 	return claimed;
   1236 }
   1237 
   1238 static int
   1239 mfi_scsi_ld_io(struct mfi_ccb *ccb, struct scsipi_xfer *xs, uint64_t blockno,
   1240     uint32_t blockcnt)
   1241 {
   1242 	struct scsipi_periph *periph = xs->xs_periph;
   1243 	struct mfi_io_frame   *io;
   1244 
   1245 	DNPRINTF(MFI_D_CMD, "%s: mfi_scsi_ld_io: %d\n",
   1246 	    device_xname(periph->periph_channel->chan_adapter->adapt_dev),
   1247 	    periph->periph_target);
   1248 
   1249 	if (!xs->data)
   1250 		return 1;
   1251 
   1252 	io = &ccb->ccb_frame->mfr_io;
   1253 	if (xs->xs_control & XS_CTL_DATA_IN) {
   1254 		io->mif_header.mfh_cmd = MFI_CMD_LD_READ;
   1255 		ccb->ccb_direction = MFI_DATA_IN;
   1256 	} else {
   1257 		io->mif_header.mfh_cmd = MFI_CMD_LD_WRITE;
   1258 		ccb->ccb_direction = MFI_DATA_OUT;
   1259 	}
   1260 	io->mif_header.mfh_target_id = periph->periph_target;
   1261 	io->mif_header.mfh_timeout = 0;
   1262 	io->mif_header.mfh_flags = 0;
   1263 	io->mif_header.mfh_sense_len = MFI_SENSE_SIZE;
   1264 	io->mif_header.mfh_data_len= blockcnt;
   1265 	io->mif_lba_hi = (blockno >> 32);
   1266 	io->mif_lba_lo = (blockno & 0xffffffff);
   1267 	io->mif_sense_addr_lo = htole32(ccb->ccb_psense);
   1268 	io->mif_sense_addr_hi = 0;
   1269 
   1270 	ccb->ccb_done = mfi_scsi_ld_done;
   1271 	ccb->ccb_xs = xs;
   1272 	ccb->ccb_frame_size = MFI_IO_FRAME_SIZE;
   1273 	ccb->ccb_sgl = &io->mif_sgl;
   1274 	ccb->ccb_data = xs->data;
   1275 	ccb->ccb_len = xs->datalen;
   1276 
   1277 	if (mfi_create_sgl(ccb, (xs->xs_control & XS_CTL_NOSLEEP) ?
   1278 	    BUS_DMA_NOWAIT : BUS_DMA_WAITOK))
   1279 		return 1;
   1280 
   1281 	return 0;
   1282 }
   1283 
   1284 static void
   1285 mfi_scsi_ld_done(struct mfi_ccb *ccb)
   1286 {
   1287 	struct mfi_frame_header	*hdr = &ccb->ccb_frame->mfr_header;
   1288 	mfi_scsi_xs_done(ccb, hdr->mfh_cmd_status, hdr->mfh_scsi_status);
   1289 }
   1290 
   1291 static void
   1292 mfi_scsi_xs_done(struct mfi_ccb *ccb, int status, int scsi_status)
   1293 {
   1294 	struct scsipi_xfer	*xs = ccb->ccb_xs;
   1295 	struct mfi_softc	*sc = ccb->ccb_sc;
   1296 
   1297 	DNPRINTF(MFI_D_INTR, "%s: mfi_scsi_xs_done %#lx %#lx\n",
   1298 	    DEVNAME(sc), (u_long)ccb, (u_long)ccb->ccb_frame);
   1299 
   1300 	if (xs->data != NULL) {
   1301 		DNPRINTF(MFI_D_INTR, "%s: mfi_scsi_xs_done sync\n",
   1302 		    DEVNAME(sc));
   1303 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   1304 		    ccb->ccb_dmamap->dm_mapsize,
   1305 		    (xs->xs_control & XS_CTL_DATA_IN) ?
   1306 		    BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
   1307 
   1308 		bus_dmamap_unload(sc->sc_datadmat, ccb->ccb_dmamap);
   1309 	}
   1310 
   1311 	if (status != MFI_STAT_OK) {
   1312 		xs->error = XS_DRIVER_STUFFUP;
   1313 		DNPRINTF(MFI_D_INTR, "%s: mfi_scsi_xs_done stuffup %#x\n",
   1314 		    DEVNAME(sc), status);
   1315 
   1316 		if (scsi_status != 0) {
   1317 			bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_sense),
   1318 			    ccb->ccb_psense - MFIMEM_DVA(sc->sc_sense),
   1319 			    MFI_SENSE_SIZE, BUS_DMASYNC_POSTREAD);
   1320 			DNPRINTF(MFI_D_INTR,
   1321 			    "%s: mfi_scsi_xs_done sense %#x %lx %lx\n",
   1322 			    DEVNAME(sc), scsi_status,
   1323 			    (u_long)&xs->sense, (u_long)ccb->ccb_sense);
   1324 			memset(&xs->sense, 0, sizeof(xs->sense));
   1325 			memcpy(&xs->sense, ccb->ccb_sense,
   1326 			    sizeof(struct scsi_sense_data));
   1327 			xs->error = XS_SENSE;
   1328 		}
   1329 	} else {
   1330 		xs->error = XS_NOERROR;
   1331 		xs->status = SCSI_OK;
   1332 		xs->resid = 0;
   1333 	}
   1334 
   1335 	mfi_put_ccb(ccb);
   1336 	scsipi_done(xs);
   1337 }
   1338 
   1339 static int
   1340 mfi_scsi_ld(struct mfi_ccb *ccb, struct scsipi_xfer *xs)
   1341 {
   1342 	struct mfi_pass_frame	*pf;
   1343 	struct scsipi_periph *periph = xs->xs_periph;
   1344 
   1345 	DNPRINTF(MFI_D_CMD, "%s: mfi_scsi_ld: %d\n",
   1346 	    device_xname(periph->periph_channel->chan_adapter->adapt_dev),
   1347 	    periph->periph_target);
   1348 
   1349 	pf = &ccb->ccb_frame->mfr_pass;
   1350 	pf->mpf_header.mfh_cmd = MFI_CMD_LD_SCSI_IO;
   1351 	pf->mpf_header.mfh_target_id = periph->periph_target;
   1352 	pf->mpf_header.mfh_lun_id = 0;
   1353 	pf->mpf_header.mfh_cdb_len = xs->cmdlen;
   1354 	pf->mpf_header.mfh_timeout = 0;
   1355 	pf->mpf_header.mfh_data_len= xs->datalen; /* XXX */
   1356 	pf->mpf_header.mfh_sense_len = MFI_SENSE_SIZE;
   1357 
   1358 	pf->mpf_sense_addr_hi = 0;
   1359 	pf->mpf_sense_addr_lo = htole32(ccb->ccb_psense);
   1360 
   1361 	memset(pf->mpf_cdb, 0, 16);
   1362 	memcpy(pf->mpf_cdb, &xs->cmdstore, xs->cmdlen);
   1363 
   1364 	ccb->ccb_done = mfi_scsi_ld_done;
   1365 	ccb->ccb_xs = xs;
   1366 	ccb->ccb_frame_size = MFI_PASS_FRAME_SIZE;
   1367 	ccb->ccb_sgl = &pf->mpf_sgl;
   1368 
   1369 	if (xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT))
   1370 		ccb->ccb_direction = (xs->xs_control & XS_CTL_DATA_IN) ?
   1371 		    MFI_DATA_IN : MFI_DATA_OUT;
   1372 	else
   1373 		ccb->ccb_direction = MFI_DATA_NONE;
   1374 
   1375 	if (xs->data) {
   1376 		ccb->ccb_data = xs->data;
   1377 		ccb->ccb_len = xs->datalen;
   1378 
   1379 		if (mfi_create_sgl(ccb, (xs->xs_control & XS_CTL_NOSLEEP) ?
   1380 		    BUS_DMA_NOWAIT : BUS_DMA_WAITOK))
   1381 			return 1;
   1382 	}
   1383 
   1384 	return 0;
   1385 }
   1386 
   1387 static void
   1388 mfi_scsipi_request(struct scsipi_channel *chan, scsipi_adapter_req_t req,
   1389     void *arg)
   1390 {
   1391 	struct scsipi_periph	*periph;
   1392 	struct scsipi_xfer	*xs;
   1393 	struct scsipi_adapter	*adapt = chan->chan_adapter;
   1394 	struct mfi_softc	*sc = device_private(adapt->adapt_dev);
   1395 	struct mfi_ccb		*ccb;
   1396 	struct scsi_rw_6	*rw;
   1397 	struct scsipi_rw_10	*rwb;
   1398 	struct scsipi_rw_12	*rw12;
   1399 	struct scsipi_rw_16	*rw16;
   1400 	uint64_t		blockno;
   1401 	uint32_t		blockcnt;
   1402 	uint8_t			target;
   1403 	uint8_t			mbox[MFI_MBOX_SIZE];
   1404 	int			s;
   1405 
   1406 	switch (req) {
   1407 	case ADAPTER_REQ_GROW_RESOURCES:
   1408 		/* Not supported. */
   1409 		return;
   1410 	case ADAPTER_REQ_SET_XFER_MODE:
   1411 	{
   1412 		struct scsipi_xfer_mode *xm = arg;
   1413 		xm->xm_mode = PERIPH_CAP_TQING;
   1414 		xm->xm_period = 0;
   1415 		xm->xm_offset = 0;
   1416 		scsipi_async_event(&sc->sc_chan, ASYNC_EVENT_XFER_MODE, xm);
   1417 		return;
   1418 	}
   1419 	case ADAPTER_REQ_RUN_XFER:
   1420 		break;
   1421 	}
   1422 
   1423 	xs = arg;
   1424 
   1425 	periph = xs->xs_periph;
   1426 	target = periph->periph_target;
   1427 
   1428 	DNPRINTF(MFI_D_CMD, "%s: mfi_scsipi_request req %d opcode: %#x "
   1429 	    "target %d lun %d\n", DEVNAME(sc), req, xs->cmd->opcode,
   1430 	    periph->periph_target, periph->periph_lun);
   1431 
   1432 	s = splbio();
   1433 	if (target >= MFI_MAX_LD || !sc->sc_ld[target].ld_present ||
   1434 	    periph->periph_lun != 0) {
   1435 		DNPRINTF(MFI_D_CMD, "%s: invalid target %d\n",
   1436 		    DEVNAME(sc), target);
   1437 		xs->error = XS_SELTIMEOUT;
   1438 		scsipi_done(xs);
   1439 		splx(s);
   1440 		return;
   1441 	}
   1442 
   1443 	if ((ccb = mfi_get_ccb(sc)) == NULL) {
   1444 		DNPRINTF(MFI_D_CMD, "%s: mfi_scsipi_request no ccb\n", DEVNAME(sc));
   1445 		xs->error = XS_RESOURCE_SHORTAGE;
   1446 		scsipi_done(xs);
   1447 		splx(s);
   1448 		return;
   1449 	}
   1450 
   1451 	switch (xs->cmd->opcode) {
   1452 	/* IO path */
   1453 	case READ_16:
   1454 	case WRITE_16:
   1455 		rw16 = (struct scsipi_rw_16 *)xs->cmd;
   1456 		blockno = _8btol(rw16->addr);
   1457 		blockcnt = _4btol(rw16->length);
   1458 		if (sc->sc_iop->mio_ld_io(ccb, xs, blockno, blockcnt)) {
   1459 			goto stuffup;
   1460 		}
   1461 		break;
   1462 
   1463 	case READ_12:
   1464 	case WRITE_12:
   1465 		rw12 = (struct scsipi_rw_12 *)xs->cmd;
   1466 		blockno = _4btol(rw12->addr);
   1467 		blockcnt = _4btol(rw12->length);
   1468 		if (sc->sc_iop->mio_ld_io(ccb, xs, blockno, blockcnt)) {
   1469 			goto stuffup;
   1470 		}
   1471 		break;
   1472 
   1473 	case READ_10:
   1474 	case WRITE_10:
   1475 		rwb = (struct scsipi_rw_10 *)xs->cmd;
   1476 		blockno = _4btol(rwb->addr);
   1477 		blockcnt = _2btol(rwb->length);
   1478 		if (sc->sc_iop->mio_ld_io(ccb, xs, blockno, blockcnt)) {
   1479 			goto stuffup;
   1480 		}
   1481 		break;
   1482 
   1483 	case SCSI_READ_6_COMMAND:
   1484 	case SCSI_WRITE_6_COMMAND:
   1485 		rw = (struct scsi_rw_6 *)xs->cmd;
   1486 		blockno = _3btol(rw->addr) & (SRW_TOPADDR << 16 | 0xffff);
   1487 		blockcnt = rw->length ? rw->length : 0x100;
   1488 		if (sc->sc_iop->mio_ld_io(ccb, xs, blockno, blockcnt)) {
   1489 			goto stuffup;
   1490 		}
   1491 		break;
   1492 
   1493 	case SCSI_SYNCHRONIZE_CACHE_10:
   1494 		mbox[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE;
   1495 		if (mfi_mgmt(ccb, xs,
   1496 		    MR_DCMD_CTRL_CACHE_FLUSH, MFI_DATA_NONE, 0, NULL, mbox)) {
   1497 			goto stuffup;
   1498 		}
   1499 		break;
   1500 
   1501 	/* hand it of to the firmware and let it deal with it */
   1502 	case SCSI_TEST_UNIT_READY:
   1503 		/* save off sd? after autoconf */
   1504 		if (!cold)	/* XXX bogus */
   1505 			strlcpy(sc->sc_ld[target].ld_dev, device_xname(sc->sc_dev),
   1506 			    sizeof(sc->sc_ld[target].ld_dev));
   1507 		/* FALLTHROUGH */
   1508 
   1509 	default:
   1510 		if (mfi_scsi_ld(ccb, xs)) {
   1511 			goto stuffup;
   1512 		}
   1513 		break;
   1514 	}
   1515 
   1516 	DNPRINTF(MFI_D_CMD, "%s: start io %d\n", DEVNAME(sc), target);
   1517 
   1518 	if (xs->xs_control & XS_CTL_POLL) {
   1519 		if (mfi_poll(ccb)) {
   1520 			/* XXX check for sense in ccb->ccb_sense? */
   1521 			aprint_error_dev(sc->sc_dev,
   1522 			    "mfi_scsipi_request poll failed\n");
   1523 			memset(&xs->sense, 0, sizeof(xs->sense));
   1524 			xs->sense.scsi_sense.response_code =
   1525 			    SSD_RCODE_VALID | SSD_RCODE_CURRENT;
   1526 			xs->sense.scsi_sense.flags = SKEY_ILLEGAL_REQUEST;
   1527 			xs->sense.scsi_sense.asc = 0x20; /* invalid opcode */
   1528 			xs->error = XS_SENSE;
   1529 			xs->status = SCSI_CHECK;
   1530 		} else {
   1531 			DNPRINTF(MFI_D_DMA,
   1532 			    "%s: mfi_scsipi_request poll complete %d\n",
   1533 			    DEVNAME(sc), ccb->ccb_dmamap->dm_nsegs);
   1534 			xs->error = XS_NOERROR;
   1535 			xs->status = SCSI_OK;
   1536 			xs->resid = 0;
   1537 		}
   1538 		mfi_put_ccb(ccb);
   1539 		scsipi_done(xs);
   1540 		splx(s);
   1541 		return;
   1542 	}
   1543 
   1544 	mfi_post(sc, ccb);
   1545 
   1546 	DNPRINTF(MFI_D_DMA, "%s: mfi_scsipi_request queued %d\n", DEVNAME(sc),
   1547 	    ccb->ccb_dmamap->dm_nsegs);
   1548 
   1549 	splx(s);
   1550 	return;
   1551 
   1552 stuffup:
   1553 	mfi_put_ccb(ccb);
   1554 	xs->error = XS_DRIVER_STUFFUP;
   1555 	scsipi_done(xs);
   1556 	splx(s);
   1557 }
   1558 
   1559 static int
   1560 mfi_create_sgl(struct mfi_ccb *ccb, int flags)
   1561 {
   1562 	struct mfi_softc	*sc = ccb->ccb_sc;
   1563 	struct mfi_frame_header	*hdr;
   1564 	bus_dma_segment_t	*sgd;
   1565 	union mfi_sgl		*sgl;
   1566 	int			error, i;
   1567 
   1568 	DNPRINTF(MFI_D_DMA, "%s: mfi_create_sgl %#lx\n", DEVNAME(sc),
   1569 	    (u_long)ccb->ccb_data);
   1570 
   1571 	if (!ccb->ccb_data)
   1572 		return 1;
   1573 
   1574 	KASSERT(flags == BUS_DMA_NOWAIT || !cpu_intr_p());
   1575 	error = bus_dmamap_load(sc->sc_datadmat, ccb->ccb_dmamap,
   1576 	    ccb->ccb_data, ccb->ccb_len, NULL, flags);
   1577 	if (error) {
   1578 		if (error == EFBIG) {
   1579 			aprint_error_dev(sc->sc_dev, "more than %d dma segs\n",
   1580 			    sc->sc_max_sgl);
   1581 		} else {
   1582 			aprint_error_dev(sc->sc_dev,
   1583 			    "error %d loading dma map\n", error);
   1584 		}
   1585 		return 1;
   1586 	}
   1587 
   1588 	hdr = &ccb->ccb_frame->mfr_header;
   1589 	sgl = ccb->ccb_sgl;
   1590 	sgd = ccb->ccb_dmamap->dm_segs;
   1591 	for (i = 0; i < ccb->ccb_dmamap->dm_nsegs; i++) {
   1592 		if (sc->sc_ioptype == MFI_IOP_TBOLT &&
   1593 		    (hdr->mfh_cmd == MFI_CMD_PD_SCSI_IO ||
   1594 		     hdr->mfh_cmd == MFI_CMD_LD_READ ||
   1595 		     hdr->mfh_cmd == MFI_CMD_LD_WRITE)) {
   1596 			sgl->sg_ieee[i].addr = htole64(sgd[i].ds_addr);
   1597 			sgl->sg_ieee[i].len = htole32(sgd[i].ds_len);
   1598 			sgl->sg_ieee[i].flags = 0;
   1599 			DNPRINTF(MFI_D_DMA, "%s: addr: %#" PRIx64 " len: %#"
   1600 			    PRIx32 "\n",
   1601 			    DEVNAME(sc), sgl->sg64[i].addr, sgl->sg64[i].len);
   1602 			hdr->mfh_flags |= MFI_FRAME_IEEE_SGL | MFI_FRAME_SGL64;
   1603 		} else if (sc->sc_64bit_dma) {
   1604 			sgl->sg64[i].addr = htole64(sgd[i].ds_addr);
   1605 			sgl->sg64[i].len = htole32(sgd[i].ds_len);
   1606 			DNPRINTF(MFI_D_DMA, "%s: addr: %#" PRIx64 " len: %#"
   1607 			    PRIx32 "\n",
   1608 			    DEVNAME(sc), sgl->sg64[i].addr, sgl->sg64[i].len);
   1609 			hdr->mfh_flags |= MFI_FRAME_SGL64;
   1610 		} else {
   1611 			sgl->sg32[i].addr = htole32(sgd[i].ds_addr);
   1612 			sgl->sg32[i].len = htole32(sgd[i].ds_len);
   1613 			DNPRINTF(MFI_D_DMA, "%s: addr: %#x  len: %#x\n",
   1614 			    DEVNAME(sc), sgl->sg32[i].addr, sgl->sg32[i].len);
   1615 			hdr->mfh_flags |= MFI_FRAME_SGL32;
   1616 		}
   1617 	}
   1618 
   1619 	if (ccb->ccb_direction == MFI_DATA_IN) {
   1620 		hdr->mfh_flags |= MFI_FRAME_DIR_READ;
   1621 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   1622 		    ccb->ccb_dmamap->dm_mapsize, BUS_DMASYNC_PREREAD);
   1623 	} else {
   1624 		hdr->mfh_flags |= MFI_FRAME_DIR_WRITE;
   1625 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   1626 		    ccb->ccb_dmamap->dm_mapsize, BUS_DMASYNC_PREWRITE);
   1627 	}
   1628 
   1629 	hdr->mfh_sg_count = ccb->ccb_dmamap->dm_nsegs;
   1630 	ccb->ccb_frame_size += sc->sc_sgl_size * ccb->ccb_dmamap->dm_nsegs;
   1631 	ccb->ccb_extra_frames = (ccb->ccb_frame_size - 1) / MFI_FRAME_SIZE;
   1632 
   1633 	DNPRINTF(MFI_D_DMA, "%s: sg_count: %d  frame_size: %d  frames_size: %d"
   1634 	    "  dm_nsegs: %d  extra_frames: %d\n",
   1635 	    DEVNAME(sc),
   1636 	    hdr->mfh_sg_count,
   1637 	    ccb->ccb_frame_size,
   1638 	    sc->sc_frames_size,
   1639 	    ccb->ccb_dmamap->dm_nsegs,
   1640 	    ccb->ccb_extra_frames);
   1641 
   1642 	return 0;
   1643 }
   1644 
   1645 static int
   1646 mfi_mgmt_internal(struct mfi_softc *sc, uint32_t opc, uint32_t dir,
   1647     uint32_t len, void *buf, uint8_t *mbox)
   1648 {
   1649 	struct mfi_ccb		*ccb;
   1650 	int			rv = 1;
   1651 
   1652 	if ((ccb = mfi_get_ccb(sc)) == NULL)
   1653 		return rv;
   1654 	rv = mfi_mgmt(ccb, NULL, opc, dir, len, buf, mbox);
   1655 	if (rv)
   1656 		return rv;
   1657 
   1658 	if (cold) {
   1659 		rv = 1;
   1660 		if (mfi_poll(ccb))
   1661 			goto done;
   1662 	} else {
   1663 		mfi_post(sc, ccb);
   1664 
   1665 		DNPRINTF(MFI_D_MISC, "%s: mfi_mgmt_internal sleeping\n",
   1666 		    DEVNAME(sc));
   1667 		while (ccb->ccb_state != MFI_CCB_DONE)
   1668 			tsleep(ccb, PRIBIO, "mfi_mgmt", 0);
   1669 
   1670 		if (ccb->ccb_flags & MFI_CCB_F_ERR)
   1671 			goto done;
   1672 	}
   1673 	rv = 0;
   1674 
   1675 done:
   1676 	mfi_put_ccb(ccb);
   1677 	return rv;
   1678 }
   1679 
   1680 static int
   1681 mfi_mgmt(struct mfi_ccb *ccb, struct scsipi_xfer *xs,
   1682     uint32_t opc, uint32_t dir, uint32_t len, void *buf, uint8_t *mbox)
   1683 {
   1684 	struct mfi_dcmd_frame	*dcmd;
   1685 
   1686 	DNPRINTF(MFI_D_MISC, "%s: mfi_mgmt %#x\n", DEVNAME(ccb->ccb_sc), opc);
   1687 
   1688 	dcmd = &ccb->ccb_frame->mfr_dcmd;
   1689 	memset(dcmd->mdf_mbox, 0, MFI_MBOX_SIZE);
   1690 	dcmd->mdf_header.mfh_cmd = MFI_CMD_DCMD;
   1691 	dcmd->mdf_header.mfh_timeout = 0;
   1692 
   1693 	dcmd->mdf_opcode = opc;
   1694 	dcmd->mdf_header.mfh_data_len = 0;
   1695 	ccb->ccb_direction = dir;
   1696 	ccb->ccb_xs = xs;
   1697 	ccb->ccb_done = mfi_mgmt_done;
   1698 
   1699 	ccb->ccb_frame_size = MFI_DCMD_FRAME_SIZE;
   1700 
   1701 	/* handle special opcodes */
   1702 	if (mbox)
   1703 		memcpy(dcmd->mdf_mbox, mbox, MFI_MBOX_SIZE);
   1704 
   1705 	if (dir != MFI_DATA_NONE) {
   1706 		dcmd->mdf_header.mfh_data_len = len;
   1707 		ccb->ccb_data = buf;
   1708 		ccb->ccb_len = len;
   1709 		ccb->ccb_sgl = &dcmd->mdf_sgl;
   1710 
   1711 		if (mfi_create_sgl(ccb, BUS_DMA_WAITOK))
   1712 			return 1;
   1713 	}
   1714 	return 0;
   1715 }
   1716 
   1717 static void
   1718 mfi_mgmt_done(struct mfi_ccb *ccb)
   1719 {
   1720 	struct scsipi_xfer	*xs = ccb->ccb_xs;
   1721 	struct mfi_softc	*sc = ccb->ccb_sc;
   1722 	struct mfi_frame_header	*hdr = &ccb->ccb_frame->mfr_header;
   1723 
   1724 	DNPRINTF(MFI_D_INTR, "%s: mfi_mgmt_done %#lx %#lx\n",
   1725 	    DEVNAME(sc), (u_long)ccb, (u_long)ccb->ccb_frame);
   1726 
   1727 	if (ccb->ccb_data != NULL) {
   1728 		DNPRINTF(MFI_D_INTR, "%s: mfi_mgmt_done sync\n",
   1729 		    DEVNAME(sc));
   1730 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   1731 		    ccb->ccb_dmamap->dm_mapsize,
   1732 		    (ccb->ccb_direction & MFI_DATA_IN) ?
   1733 		    BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
   1734 
   1735 		bus_dmamap_unload(sc->sc_datadmat, ccb->ccb_dmamap);
   1736 	}
   1737 
   1738 	if (hdr->mfh_cmd_status != MFI_STAT_OK)
   1739 		ccb->ccb_flags |= MFI_CCB_F_ERR;
   1740 
   1741 	ccb->ccb_state = MFI_CCB_DONE;
   1742 	if (xs) {
   1743 		if (hdr->mfh_cmd_status != MFI_STAT_OK) {
   1744 			xs->error = XS_DRIVER_STUFFUP;
   1745 		} else {
   1746 			xs->error = XS_NOERROR;
   1747 			xs->status = SCSI_OK;
   1748 			xs->resid = 0;
   1749 		}
   1750 		mfi_put_ccb(ccb);
   1751 		scsipi_done(xs);
   1752 	} else
   1753 		wakeup(ccb);
   1754 }
   1755 
   1756 #if NBIO > 0
   1757 int
   1758 mfi_ioctl(device_t dev, u_long cmd, void *addr)
   1759 {
   1760 	struct mfi_softc *sc = device_private(dev);
   1761 	int error = 0;
   1762 	int s;
   1763 
   1764 	KERNEL_LOCK(1, curlwp);
   1765 	s = splbio();
   1766 
   1767 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl ", DEVNAME(sc));
   1768 
   1769 	switch (cmd) {
   1770 	case BIOCINQ:
   1771 		DNPRINTF(MFI_D_IOCTL, "inq\n");
   1772 		error = mfi_ioctl_inq(sc, (struct bioc_inq *)addr);
   1773 		break;
   1774 
   1775 	case BIOCVOL:
   1776 		DNPRINTF(MFI_D_IOCTL, "vol\n");
   1777 		error = mfi_ioctl_vol(sc, (struct bioc_vol *)addr);
   1778 		break;
   1779 
   1780 	case BIOCDISK:
   1781 		DNPRINTF(MFI_D_IOCTL, "disk\n");
   1782 		error = mfi_ioctl_disk(sc, (struct bioc_disk *)addr);
   1783 		break;
   1784 
   1785 	case BIOCALARM:
   1786 		DNPRINTF(MFI_D_IOCTL, "alarm\n");
   1787 		error = mfi_ioctl_alarm(sc, (struct bioc_alarm *)addr);
   1788 		break;
   1789 
   1790 	case BIOCBLINK:
   1791 		DNPRINTF(MFI_D_IOCTL, "blink\n");
   1792 		error = mfi_ioctl_blink(sc, (struct bioc_blink *)addr);
   1793 		break;
   1794 
   1795 	case BIOCSETSTATE:
   1796 		DNPRINTF(MFI_D_IOCTL, "setstate\n");
   1797 		error = mfi_ioctl_setstate(sc, (struct bioc_setstate *)addr);
   1798 		break;
   1799 
   1800 	default:
   1801 		DNPRINTF(MFI_D_IOCTL, " invalid ioctl\n");
   1802 		error = EINVAL;
   1803 	}
   1804 	splx(s);
   1805 	KERNEL_UNLOCK_ONE(curlwp);
   1806 
   1807 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl return %x\n", DEVNAME(sc), error);
   1808 	return error;
   1809 }
   1810 
   1811 static int
   1812 mfi_ioctl_inq(struct mfi_softc *sc, struct bioc_inq *bi)
   1813 {
   1814 	struct mfi_conf		*cfg;
   1815 	int			rv = EINVAL;
   1816 
   1817 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_inq\n", DEVNAME(sc));
   1818 
   1819 	if (mfi_get_info(sc)) {
   1820 		DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_inq failed\n",
   1821 		    DEVNAME(sc));
   1822 		return EIO;
   1823 	}
   1824 
   1825 	/* get figures */
   1826 	cfg = malloc(sizeof *cfg, M_DEVBUF, M_WAITOK);
   1827 	if (mfi_mgmt_internal(sc, MD_DCMD_CONF_GET, MFI_DATA_IN,
   1828 	    sizeof *cfg, cfg, NULL))
   1829 		goto freeme;
   1830 
   1831 	strlcpy(bi->bi_dev, DEVNAME(sc), sizeof(bi->bi_dev));
   1832 	bi->bi_novol = cfg->mfc_no_ld + cfg->mfc_no_hs;
   1833 	bi->bi_nodisk = sc->sc_info.mci_pd_disks_present;
   1834 
   1835 	rv = 0;
   1836 freeme:
   1837 	free(cfg, M_DEVBUF);
   1838 	return rv;
   1839 }
   1840 
   1841 static int
   1842 mfi_ioctl_vol(struct mfi_softc *sc, struct bioc_vol *bv)
   1843 {
   1844 	int			i, per, rv = EINVAL;
   1845 	uint8_t			mbox[MFI_MBOX_SIZE];
   1846 
   1847 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_vol %#x\n",
   1848 	    DEVNAME(sc), bv->bv_volid);
   1849 
   1850 	if (mfi_mgmt_internal(sc, MR_DCMD_LD_GET_LIST, MFI_DATA_IN,
   1851 	    sizeof(sc->sc_ld_list), &sc->sc_ld_list, NULL))
   1852 		goto done;
   1853 
   1854 	i = bv->bv_volid;
   1855 	mbox[0] = sc->sc_ld_list.mll_list[i].mll_ld.mld_target;
   1856 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_vol target %#x\n",
   1857 	    DEVNAME(sc), mbox[0]);
   1858 
   1859 	if (mfi_mgmt_internal(sc, MR_DCMD_LD_GET_INFO, MFI_DATA_IN,
   1860 	    sizeof(sc->sc_ld_details), &sc->sc_ld_details, mbox))
   1861 		goto done;
   1862 
   1863 	if (bv->bv_volid >= sc->sc_ld_list.mll_no_ld) {
   1864 		/* go do hotspares */
   1865 		rv = mfi_bio_hs(sc, bv->bv_volid, MFI_MGMT_VD, bv);
   1866 		goto done;
   1867 	}
   1868 
   1869 	strlcpy(bv->bv_dev, sc->sc_ld[i].ld_dev, sizeof(bv->bv_dev));
   1870 
   1871 	switch(sc->sc_ld_list.mll_list[i].mll_state) {
   1872 	case MFI_LD_OFFLINE:
   1873 		bv->bv_status = BIOC_SVOFFLINE;
   1874 		break;
   1875 
   1876 	case MFI_LD_PART_DEGRADED:
   1877 	case MFI_LD_DEGRADED:
   1878 		bv->bv_status = BIOC_SVDEGRADED;
   1879 		break;
   1880 
   1881 	case MFI_LD_ONLINE:
   1882 		bv->bv_status = BIOC_SVONLINE;
   1883 		break;
   1884 
   1885 	default:
   1886 		bv->bv_status = BIOC_SVINVALID;
   1887 		DNPRINTF(MFI_D_IOCTL, "%s: invalid logical disk state %#x\n",
   1888 		    DEVNAME(sc),
   1889 		    sc->sc_ld_list.mll_list[i].mll_state);
   1890 	}
   1891 
   1892 	/* additional status can modify MFI status */
   1893 	switch (sc->sc_ld_details.mld_progress.mlp_in_prog) {
   1894 	case MFI_LD_PROG_CC:
   1895 	case MFI_LD_PROG_BGI:
   1896 		bv->bv_status = BIOC_SVSCRUB;
   1897 		per = (int)sc->sc_ld_details.mld_progress.mlp_cc.mp_progress;
   1898 		bv->bv_percent = (per * 100) / 0xffff;
   1899 		bv->bv_seconds =
   1900 		    sc->sc_ld_details.mld_progress.mlp_cc.mp_elapsed_seconds;
   1901 		break;
   1902 
   1903 	case MFI_LD_PROG_FGI:
   1904 	case MFI_LD_PROG_RECONSTRUCT:
   1905 		/* nothing yet */
   1906 		break;
   1907 	}
   1908 
   1909 	/*
   1910 	 * The RAID levels are determined per the SNIA DDF spec, this is only
   1911 	 * a subset that is valid for the MFI contrller.
   1912 	 */
   1913 	bv->bv_level = sc->sc_ld_details.mld_cfg.mlc_parm.mpa_pri_raid;
   1914 	if (sc->sc_ld_details.mld_cfg.mlc_parm.mpa_sec_raid ==
   1915 	    MFI_DDF_SRL_SPANNED)
   1916 		bv->bv_level *= 10;
   1917 
   1918 	bv->bv_nodisk = sc->sc_ld_details.mld_cfg.mlc_parm.mpa_no_drv_per_span *
   1919 	    sc->sc_ld_details.mld_cfg.mlc_parm.mpa_span_depth;
   1920 
   1921 	bv->bv_size = sc->sc_ld_details.mld_size * 512; /* bytes per block */
   1922 
   1923 	rv = 0;
   1924 done:
   1925 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_vol done %x\n",
   1926 	    DEVNAME(sc), rv);
   1927 	return rv;
   1928 }
   1929 
   1930 static int
   1931 mfi_ioctl_disk(struct mfi_softc *sc, struct bioc_disk *bd)
   1932 {
   1933 	struct mfi_conf		*cfg;
   1934 	struct mfi_array	*ar;
   1935 	struct mfi_ld_cfg	*ld;
   1936 	struct mfi_pd_details	*pd;
   1937 	struct scsipi_inquiry_data *inqbuf;
   1938 	char			vend[8+16+4+1];
   1939 	int			i, rv = EINVAL;
   1940 	int			arr, vol, disk;
   1941 	uint32_t		size;
   1942 	uint8_t			mbox[MFI_MBOX_SIZE];
   1943 
   1944 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_disk %#x\n",
   1945 	    DEVNAME(sc), bd->bd_diskid);
   1946 
   1947 	pd = malloc(sizeof *pd, M_DEVBUF, M_WAITOK | M_ZERO);
   1948 
   1949 	/* send single element command to retrieve size for full structure */
   1950 	cfg = malloc(sizeof *cfg, M_DEVBUF, M_WAITOK);
   1951 	if (mfi_mgmt_internal(sc, MD_DCMD_CONF_GET, MFI_DATA_IN,
   1952 	    sizeof *cfg, cfg, NULL))
   1953 		goto freeme;
   1954 
   1955 	size = cfg->mfc_size;
   1956 	free(cfg, M_DEVBUF);
   1957 
   1958 	/* memory for read config */
   1959 	cfg = malloc(size, M_DEVBUF, M_WAITOK|M_ZERO);
   1960 	if (mfi_mgmt_internal(sc, MD_DCMD_CONF_GET, MFI_DATA_IN,
   1961 	    size, cfg, NULL))
   1962 		goto freeme;
   1963 
   1964 	ar = cfg->mfc_array;
   1965 
   1966 	/* calculate offset to ld structure */
   1967 	ld = (struct mfi_ld_cfg *)(
   1968 	    ((uint8_t *)cfg) + offsetof(struct mfi_conf, mfc_array) +
   1969 	    cfg->mfc_array_size * cfg->mfc_no_array);
   1970 
   1971 	vol = bd->bd_volid;
   1972 
   1973 	if (vol >= cfg->mfc_no_ld) {
   1974 		/* do hotspares */
   1975 		rv = mfi_bio_hs(sc, bd->bd_volid, MFI_MGMT_SD, bd);
   1976 		goto freeme;
   1977 	}
   1978 
   1979 	/* find corresponding array for ld */
   1980 	for (i = 0, arr = 0; i < vol; i++)
   1981 		arr += ld[i].mlc_parm.mpa_span_depth;
   1982 
   1983 	/* offset disk into pd list */
   1984 	disk = bd->bd_diskid % ld[vol].mlc_parm.mpa_no_drv_per_span;
   1985 
   1986 	/* offset array index into the next spans */
   1987 	arr += bd->bd_diskid / ld[vol].mlc_parm.mpa_no_drv_per_span;
   1988 
   1989 	bd->bd_target = ar[arr].pd[disk].mar_enc_slot;
   1990 	switch (ar[arr].pd[disk].mar_pd_state){
   1991 	case MFI_PD_UNCONFIG_GOOD:
   1992 		bd->bd_status = BIOC_SDUNUSED;
   1993 		break;
   1994 
   1995 	case MFI_PD_HOTSPARE: /* XXX dedicated hotspare part of array? */
   1996 		bd->bd_status = BIOC_SDHOTSPARE;
   1997 		break;
   1998 
   1999 	case MFI_PD_OFFLINE:
   2000 		bd->bd_status = BIOC_SDOFFLINE;
   2001 		break;
   2002 
   2003 	case MFI_PD_FAILED:
   2004 		bd->bd_status = BIOC_SDFAILED;
   2005 		break;
   2006 
   2007 	case MFI_PD_REBUILD:
   2008 		bd->bd_status = BIOC_SDREBUILD;
   2009 		break;
   2010 
   2011 	case MFI_PD_ONLINE:
   2012 		bd->bd_status = BIOC_SDONLINE;
   2013 		break;
   2014 
   2015 	case MFI_PD_UNCONFIG_BAD: /* XXX define new state in bio */
   2016 	default:
   2017 		bd->bd_status = BIOC_SDINVALID;
   2018 		break;
   2019 
   2020 	}
   2021 
   2022 	/* get the remaining fields */
   2023 	*((uint16_t *)&mbox) = ar[arr].pd[disk].mar_pd.mfp_id;
   2024 	memset(pd, 0, sizeof(*pd));
   2025 	if (mfi_mgmt_internal(sc, MR_DCMD_PD_GET_INFO, MFI_DATA_IN,
   2026 	    sizeof *pd, pd, mbox))
   2027 		goto freeme;
   2028 
   2029 	bd->bd_size = pd->mpd_size * 512; /* bytes per block */
   2030 
   2031 	/* if pd->mpd_enc_idx is 0 then it is not in an enclosure */
   2032 	bd->bd_channel = pd->mpd_enc_idx;
   2033 
   2034 	inqbuf = (struct scsipi_inquiry_data *)&pd->mpd_inq_data;
   2035 	memcpy(vend, inqbuf->vendor, sizeof vend - 1);
   2036 	vend[sizeof vend - 1] = '\0';
   2037 	strlcpy(bd->bd_vendor, vend, sizeof(bd->bd_vendor));
   2038 
   2039 	/* XXX find a way to retrieve serial nr from drive */
   2040 	/* XXX find a way to get bd_procdev */
   2041 
   2042 	rv = 0;
   2043 freeme:
   2044 	free(pd, M_DEVBUF);
   2045 	free(cfg, M_DEVBUF);
   2046 
   2047 	return rv;
   2048 }
   2049 
   2050 static int
   2051 mfi_ioctl_alarm(struct mfi_softc *sc, struct bioc_alarm *ba)
   2052 {
   2053 	uint32_t		opc, dir = MFI_DATA_NONE;
   2054 	int			rv = 0;
   2055 	int8_t			ret;
   2056 
   2057 	switch(ba->ba_opcode) {
   2058 	case BIOC_SADISABLE:
   2059 		opc = MR_DCMD_SPEAKER_DISABLE;
   2060 		break;
   2061 
   2062 	case BIOC_SAENABLE:
   2063 		opc = MR_DCMD_SPEAKER_ENABLE;
   2064 		break;
   2065 
   2066 	case BIOC_SASILENCE:
   2067 		opc = MR_DCMD_SPEAKER_SILENCE;
   2068 		break;
   2069 
   2070 	case BIOC_GASTATUS:
   2071 		opc = MR_DCMD_SPEAKER_GET;
   2072 		dir = MFI_DATA_IN;
   2073 		break;
   2074 
   2075 	case BIOC_SATEST:
   2076 		opc = MR_DCMD_SPEAKER_TEST;
   2077 		break;
   2078 
   2079 	default:
   2080 		DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_alarm biocalarm invalid "
   2081 		    "opcode %x\n", DEVNAME(sc), ba->ba_opcode);
   2082 		return EINVAL;
   2083 	}
   2084 
   2085 	if (mfi_mgmt_internal(sc, opc, dir, sizeof(ret), &ret, NULL))
   2086 		rv = EINVAL;
   2087 	else
   2088 		if (ba->ba_opcode == BIOC_GASTATUS)
   2089 			ba->ba_status = ret;
   2090 		else
   2091 			ba->ba_status = 0;
   2092 
   2093 	return rv;
   2094 }
   2095 
   2096 static int
   2097 mfi_ioctl_blink(struct mfi_softc *sc, struct bioc_blink *bb)
   2098 {
   2099 	int			i, found, rv = EINVAL;
   2100 	uint8_t			mbox[MFI_MBOX_SIZE];
   2101 	uint32_t		cmd;
   2102 	struct mfi_pd_list	*pd;
   2103 
   2104 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_blink %x\n", DEVNAME(sc),
   2105 	    bb->bb_status);
   2106 
   2107 	/* channel 0 means not in an enclosure so can't be blinked */
   2108 	if (bb->bb_channel == 0)
   2109 		return EINVAL;
   2110 
   2111 	pd = malloc(MFI_PD_LIST_SIZE, M_DEVBUF, M_WAITOK);
   2112 
   2113 	if (mfi_mgmt_internal(sc, MR_DCMD_PD_GET_LIST, MFI_DATA_IN,
   2114 	    MFI_PD_LIST_SIZE, pd, NULL))
   2115 		goto done;
   2116 
   2117 	for (i = 0, found = 0; i < pd->mpl_no_pd; i++)
   2118 		if (bb->bb_channel == pd->mpl_address[i].mpa_enc_index &&
   2119 		    bb->bb_target == pd->mpl_address[i].mpa_enc_slot) {
   2120 		    	found = 1;
   2121 			break;
   2122 		}
   2123 
   2124 	if (!found)
   2125 		goto done;
   2126 
   2127 	memset(mbox, 0, sizeof mbox);
   2128 
   2129 	*((uint16_t *)&mbox) = pd->mpl_address[i].mpa_pd_id;
   2130 
   2131 	switch (bb->bb_status) {
   2132 	case BIOC_SBUNBLINK:
   2133 		cmd = MR_DCMD_PD_UNBLINK;
   2134 		break;
   2135 
   2136 	case BIOC_SBBLINK:
   2137 		cmd = MR_DCMD_PD_BLINK;
   2138 		break;
   2139 
   2140 	case BIOC_SBALARM:
   2141 	default:
   2142 		DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_blink biocblink invalid "
   2143 		    "opcode %x\n", DEVNAME(sc), bb->bb_status);
   2144 		goto done;
   2145 	}
   2146 
   2147 
   2148 	if (mfi_mgmt_internal(sc, cmd, MFI_DATA_NONE, 0, NULL, mbox))
   2149 		goto done;
   2150 
   2151 	rv = 0;
   2152 done:
   2153 	free(pd, M_DEVBUF);
   2154 	return rv;
   2155 }
   2156 
   2157 static int
   2158 mfi_ioctl_setstate(struct mfi_softc *sc, struct bioc_setstate *bs)
   2159 {
   2160 	struct mfi_pd_list	*pd;
   2161 	int			i, found, rv = EINVAL;
   2162 	uint8_t			mbox[MFI_MBOX_SIZE];
   2163 	uint32_t		cmd;
   2164 
   2165 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_setstate %x\n", DEVNAME(sc),
   2166 	    bs->bs_status);
   2167 
   2168 	pd = malloc(MFI_PD_LIST_SIZE, M_DEVBUF, M_WAITOK);
   2169 
   2170 	if (mfi_mgmt_internal(sc, MR_DCMD_PD_GET_LIST, MFI_DATA_IN,
   2171 	    MFI_PD_LIST_SIZE, pd, NULL))
   2172 		goto done;
   2173 
   2174 	for (i = 0, found = 0; i < pd->mpl_no_pd; i++)
   2175 		if (bs->bs_channel == pd->mpl_address[i].mpa_enc_index &&
   2176 		    bs->bs_target == pd->mpl_address[i].mpa_enc_slot) {
   2177 		    	found = 1;
   2178 			break;
   2179 		}
   2180 
   2181 	if (!found)
   2182 		goto done;
   2183 
   2184 	memset(mbox, 0, sizeof mbox);
   2185 
   2186 	*((uint16_t *)&mbox) = pd->mpl_address[i].mpa_pd_id;
   2187 
   2188 	switch (bs->bs_status) {
   2189 	case BIOC_SSONLINE:
   2190 		mbox[2] = MFI_PD_ONLINE;
   2191 		cmd = MD_DCMD_PD_SET_STATE;
   2192 		break;
   2193 
   2194 	case BIOC_SSOFFLINE:
   2195 		mbox[2] = MFI_PD_OFFLINE;
   2196 		cmd = MD_DCMD_PD_SET_STATE;
   2197 		break;
   2198 
   2199 	case BIOC_SSHOTSPARE:
   2200 		mbox[2] = MFI_PD_HOTSPARE;
   2201 		cmd = MD_DCMD_PD_SET_STATE;
   2202 		break;
   2203 /*
   2204 	case BIOC_SSREBUILD:
   2205 		cmd = MD_DCMD_PD_REBUILD;
   2206 		break;
   2207 */
   2208 	default:
   2209 		DNPRINTF(MFI_D_IOCTL, "%s: mfi_ioctl_setstate invalid "
   2210 		    "opcode %x\n", DEVNAME(sc), bs->bs_status);
   2211 		goto done;
   2212 	}
   2213 
   2214 
   2215 	if (mfi_mgmt_internal(sc, MD_DCMD_PD_SET_STATE, MFI_DATA_NONE,
   2216 	    0, NULL, mbox))
   2217 		goto done;
   2218 
   2219 	rv = 0;
   2220 done:
   2221 	free(pd, M_DEVBUF);
   2222 	return rv;
   2223 }
   2224 
   2225 static int
   2226 mfi_bio_hs(struct mfi_softc *sc, int volid, int type, void *bio_hs)
   2227 {
   2228 	struct mfi_conf		*cfg;
   2229 	struct mfi_hotspare	*hs;
   2230 	struct mfi_pd_details	*pd;
   2231 	struct bioc_disk	*sdhs;
   2232 	struct bioc_vol		*vdhs;
   2233 	struct scsipi_inquiry_data *inqbuf;
   2234 	char			vend[8+16+4+1];
   2235 	int			i, rv = EINVAL;
   2236 	uint32_t		size;
   2237 	uint8_t			mbox[MFI_MBOX_SIZE];
   2238 
   2239 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_vol_hs %d\n", DEVNAME(sc), volid);
   2240 
   2241 	if (!bio_hs)
   2242 		return EINVAL;
   2243 
   2244 	pd = malloc(sizeof *pd, M_DEVBUF, M_WAITOK | M_ZERO);
   2245 
   2246 	/* send single element command to retrieve size for full structure */
   2247 	cfg = malloc(sizeof *cfg, M_DEVBUF, M_WAITOK);
   2248 	if (mfi_mgmt_internal(sc, MD_DCMD_CONF_GET, MFI_DATA_IN,
   2249 	    sizeof *cfg, cfg, NULL))
   2250 		goto freeme;
   2251 
   2252 	size = cfg->mfc_size;
   2253 	free(cfg, M_DEVBUF);
   2254 
   2255 	/* memory for read config */
   2256 	cfg = malloc(size, M_DEVBUF, M_WAITOK|M_ZERO);
   2257 	if (mfi_mgmt_internal(sc, MD_DCMD_CONF_GET, MFI_DATA_IN,
   2258 	    size, cfg, NULL))
   2259 		goto freeme;
   2260 
   2261 	/* calculate offset to hs structure */
   2262 	hs = (struct mfi_hotspare *)(
   2263 	    ((uint8_t *)cfg) + offsetof(struct mfi_conf, mfc_array) +
   2264 	    cfg->mfc_array_size * cfg->mfc_no_array +
   2265 	    cfg->mfc_ld_size * cfg->mfc_no_ld);
   2266 
   2267 	if (volid < cfg->mfc_no_ld)
   2268 		goto freeme; /* not a hotspare */
   2269 
   2270 	if (volid > (cfg->mfc_no_ld + cfg->mfc_no_hs))
   2271 		goto freeme; /* not a hotspare */
   2272 
   2273 	/* offset into hotspare structure */
   2274 	i = volid - cfg->mfc_no_ld;
   2275 
   2276 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_vol_hs i %d volid %d no_ld %d no_hs %d "
   2277 	    "hs %p cfg %p id %02x\n", DEVNAME(sc), i, volid, cfg->mfc_no_ld,
   2278 	    cfg->mfc_no_hs, hs, cfg, hs[i].mhs_pd.mfp_id);
   2279 
   2280 	/* get pd fields */
   2281 	memset(mbox, 0, sizeof mbox);
   2282 	*((uint16_t *)&mbox) = hs[i].mhs_pd.mfp_id;
   2283 	if (mfi_mgmt_internal(sc, MR_DCMD_PD_GET_INFO, MFI_DATA_IN,
   2284 	    sizeof *pd, pd, mbox)) {
   2285 		DNPRINTF(MFI_D_IOCTL, "%s: mfi_vol_hs illegal PD\n",
   2286 		    DEVNAME(sc));
   2287 		goto freeme;
   2288 	}
   2289 
   2290 	switch (type) {
   2291 	case MFI_MGMT_VD:
   2292 		vdhs = bio_hs;
   2293 		vdhs->bv_status = BIOC_SVONLINE;
   2294 		vdhs->bv_size = pd->mpd_size * 512; /* bytes per block */
   2295 		vdhs->bv_level = -1; /* hotspare */
   2296 		vdhs->bv_nodisk = 1;
   2297 		break;
   2298 
   2299 	case MFI_MGMT_SD:
   2300 		sdhs = bio_hs;
   2301 		sdhs->bd_status = BIOC_SDHOTSPARE;
   2302 		sdhs->bd_size = pd->mpd_size * 512; /* bytes per block */
   2303 		sdhs->bd_channel = pd->mpd_enc_idx;
   2304 		sdhs->bd_target = pd->mpd_enc_slot;
   2305 		inqbuf = (struct scsipi_inquiry_data *)&pd->mpd_inq_data;
   2306 		memcpy(vend, inqbuf->vendor, sizeof(vend) - 1);
   2307 		vend[sizeof vend - 1] = '\0';
   2308 		strlcpy(sdhs->bd_vendor, vend, sizeof(sdhs->bd_vendor));
   2309 		break;
   2310 
   2311 	default:
   2312 		goto freeme;
   2313 	}
   2314 
   2315 	DNPRINTF(MFI_D_IOCTL, "%s: mfi_vol_hs 6\n", DEVNAME(sc));
   2316 	rv = 0;
   2317 freeme:
   2318 	free(pd, M_DEVBUF);
   2319 	free(cfg, M_DEVBUF);
   2320 
   2321 	return rv;
   2322 }
   2323 
   2324 static int
   2325 mfi_destroy_sensors(struct mfi_softc *sc)
   2326 {
   2327 	if (sc->sc_sme == NULL)
   2328 		return 0;
   2329 	sysmon_envsys_unregister(sc->sc_sme);
   2330 	sc->sc_sme = NULL;
   2331 	free(sc->sc_sensor, M_DEVBUF);
   2332 	return 0;
   2333 }
   2334 
   2335 static int
   2336 mfi_create_sensors(struct mfi_softc *sc)
   2337 {
   2338 	int i;
   2339 	int nsensors = sc->sc_ld_cnt;
   2340 	int rv;
   2341 
   2342 	sc->sc_sme = sysmon_envsys_create();
   2343 	sc->sc_sensor = malloc(sizeof(envsys_data_t) * nsensors,
   2344 	    M_DEVBUF, M_NOWAIT | M_ZERO);
   2345 	if (sc->sc_sensor == NULL) {
   2346 		aprint_error_dev(sc->sc_dev, "can't allocate envsys_data_t\n");
   2347 		return ENOMEM;
   2348 	}
   2349 
   2350 	for (i = 0; i < nsensors; i++) {
   2351 		sc->sc_sensor[i].units = ENVSYS_DRIVE;
   2352 		sc->sc_sensor[i].state = ENVSYS_SINVALID;
   2353 		sc->sc_sensor[i].value_cur = ENVSYS_DRIVE_EMPTY;
   2354 		/* Enable monitoring for drive state changes */
   2355 		sc->sc_sensor[i].flags |= ENVSYS_FMONSTCHANGED;
   2356 		/* logical drives */
   2357 		snprintf(sc->sc_sensor[i].desc,
   2358 		    sizeof(sc->sc_sensor[i].desc), "%s:%d",
   2359 		    DEVNAME(sc), i);
   2360 		if (sysmon_envsys_sensor_attach(sc->sc_sme,
   2361 						&sc->sc_sensor[i]))
   2362 			goto out;
   2363 	}
   2364 
   2365 	sc->sc_sme->sme_name = DEVNAME(sc);
   2366 	sc->sc_sme->sme_cookie = sc;
   2367 	sc->sc_sme->sme_refresh = mfi_sensor_refresh;
   2368 	rv = sysmon_envsys_register(sc->sc_sme);
   2369 	if (rv != 0) {
   2370 		aprint_error_dev(sc->sc_dev,
   2371 		    "unable to register with sysmon (rv = %d)\n", rv);
   2372 		goto out;
   2373 	}
   2374 	return 0;
   2375 
   2376 out:
   2377 	free(sc->sc_sensor, M_DEVBUF);
   2378 	sysmon_envsys_destroy(sc->sc_sme);
   2379 	sc->sc_sme = NULL;
   2380 	return EINVAL;
   2381 }
   2382 
   2383 static void
   2384 mfi_sensor_refresh(struct sysmon_envsys *sme, envsys_data_t *edata)
   2385 {
   2386 	struct mfi_softc	*sc = sme->sme_cookie;
   2387 	struct bioc_vol		bv;
   2388 	int s;
   2389 	int error;
   2390 
   2391 	if (edata->sensor >= sc->sc_ld_cnt)
   2392 		return;
   2393 
   2394 	memset(&bv, 0, sizeof(bv));
   2395 	bv.bv_volid = edata->sensor;
   2396 	KERNEL_LOCK(1, curlwp);
   2397 	s = splbio();
   2398 	error = mfi_ioctl_vol(sc, &bv);
   2399 	splx(s);
   2400 	KERNEL_UNLOCK_ONE(curlwp);
   2401 	if (error)
   2402 		return;
   2403 
   2404 	switch(bv.bv_status) {
   2405 	case BIOC_SVOFFLINE:
   2406 		edata->value_cur = ENVSYS_DRIVE_FAIL;
   2407 		edata->state = ENVSYS_SCRITICAL;
   2408 		break;
   2409 
   2410 	case BIOC_SVDEGRADED:
   2411 		edata->value_cur = ENVSYS_DRIVE_PFAIL;
   2412 		edata->state = ENVSYS_SCRITICAL;
   2413 		break;
   2414 
   2415 	case BIOC_SVSCRUB:
   2416 	case BIOC_SVONLINE:
   2417 		edata->value_cur = ENVSYS_DRIVE_ONLINE;
   2418 		edata->state = ENVSYS_SVALID;
   2419 		break;
   2420 
   2421 	case BIOC_SVINVALID:
   2422 		/* FALLTRHOUGH */
   2423 	default:
   2424 		edata->value_cur = 0; /* unknown */
   2425 		edata->state = ENVSYS_SINVALID;
   2426 	}
   2427 }
   2428 
   2429 #endif /* NBIO > 0 */
   2430 
   2431 static uint32_t
   2432 mfi_xscale_fw_state(struct mfi_softc *sc)
   2433 {
   2434 	return mfi_read(sc, MFI_OMSG0);
   2435 }
   2436 
   2437 static void
   2438 mfi_xscale_intr_dis(struct mfi_softc *sc)
   2439 {
   2440 	mfi_write(sc, MFI_OMSK, 0);
   2441 }
   2442 
   2443 static void
   2444 mfi_xscale_intr_ena(struct mfi_softc *sc)
   2445 {
   2446 	mfi_write(sc, MFI_OMSK, MFI_ENABLE_INTR);
   2447 }
   2448 
   2449 static int
   2450 mfi_xscale_intr(struct mfi_softc *sc)
   2451 {
   2452 	uint32_t status;
   2453 
   2454 	status = mfi_read(sc, MFI_OSTS);
   2455 	if (!ISSET(status, MFI_OSTS_INTR_VALID))
   2456 		return 0;
   2457 
   2458 	/* write status back to acknowledge interrupt */
   2459 	mfi_write(sc, MFI_OSTS, status);
   2460 	return 1;
   2461 }
   2462 
   2463 static void
   2464 mfi_xscale_post(struct mfi_softc *sc, struct mfi_ccb *ccb)
   2465 {
   2466 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_frames),
   2467 	    ccb->ccb_pframe - MFIMEM_DVA(sc->sc_frames),
   2468 	    sc->sc_frames_size, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   2469 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_sense),
   2470 	    ccb->ccb_psense - MFIMEM_DVA(sc->sc_sense),
   2471 	    MFI_SENSE_SIZE, BUS_DMASYNC_PREREAD);
   2472 
   2473 	mfi_write(sc, MFI_IQP, (ccb->ccb_pframe >> 3) |
   2474 	    ccb->ccb_extra_frames);
   2475 	ccb->ccb_state = MFI_CCB_RUNNING;
   2476 }
   2477 
   2478 static uint32_t
   2479 mfi_ppc_fw_state(struct mfi_softc *sc)
   2480 {
   2481 	return mfi_read(sc, MFI_OSP);
   2482 }
   2483 
   2484 static void
   2485 mfi_ppc_intr_dis(struct mfi_softc *sc)
   2486 {
   2487 	/* Taking a wild guess --dyoung */
   2488 	mfi_write(sc, MFI_OMSK, ~(uint32_t)0x0);
   2489 	mfi_write(sc, MFI_ODC, 0xffffffff);
   2490 }
   2491 
   2492 static void
   2493 mfi_ppc_intr_ena(struct mfi_softc *sc)
   2494 {
   2495 	mfi_write(sc, MFI_ODC, 0xffffffff);
   2496 	mfi_write(sc, MFI_OMSK, ~0x80000004);
   2497 }
   2498 
   2499 static int
   2500 mfi_ppc_intr(struct mfi_softc *sc)
   2501 {
   2502 	uint32_t status;
   2503 
   2504 	status = mfi_read(sc, MFI_OSTS);
   2505 	if (!ISSET(status, MFI_OSTS_PPC_INTR_VALID))
   2506 		return 0;
   2507 
   2508 	/* write status back to acknowledge interrupt */
   2509 	mfi_write(sc, MFI_ODC, status);
   2510 	return 1;
   2511 }
   2512 
   2513 static void
   2514 mfi_ppc_post(struct mfi_softc *sc, struct mfi_ccb *ccb)
   2515 {
   2516 	mfi_write(sc, MFI_IQP, 0x1 | ccb->ccb_pframe |
   2517 	    (ccb->ccb_extra_frames << 1));
   2518 	ccb->ccb_state = MFI_CCB_RUNNING;
   2519 }
   2520 
   2521 u_int32_t
   2522 mfi_gen2_fw_state(struct mfi_softc *sc)
   2523 {
   2524 	return (mfi_read(sc, MFI_OSP));
   2525 }
   2526 
   2527 void
   2528 mfi_gen2_intr_dis(struct mfi_softc *sc)
   2529 {
   2530 	mfi_write(sc, MFI_OMSK, 0xffffffff);
   2531 	mfi_write(sc, MFI_ODC, 0xffffffff);
   2532 }
   2533 
   2534 void
   2535 mfi_gen2_intr_ena(struct mfi_softc *sc)
   2536 {
   2537 	mfi_write(sc, MFI_ODC, 0xffffffff);
   2538 	mfi_write(sc, MFI_OMSK, ~MFI_OSTS_GEN2_INTR_VALID);
   2539 }
   2540 
   2541 int
   2542 mfi_gen2_intr(struct mfi_softc *sc)
   2543 {
   2544 	u_int32_t status;
   2545 
   2546 	status = mfi_read(sc, MFI_OSTS);
   2547 	if (!ISSET(status, MFI_OSTS_GEN2_INTR_VALID))
   2548 		return (0);
   2549 
   2550 	/* write status back to acknowledge interrupt */
   2551 	mfi_write(sc, MFI_ODC, status);
   2552 
   2553 	return (1);
   2554 }
   2555 
   2556 void
   2557 mfi_gen2_post(struct mfi_softc *sc, struct mfi_ccb *ccb)
   2558 {
   2559 	mfi_write(sc, MFI_IQP, 0x1 | ccb->ccb_pframe |
   2560 	    (ccb->ccb_extra_frames << 1));
   2561 	ccb->ccb_state = MFI_CCB_RUNNING;
   2562 }
   2563 
   2564 u_int32_t
   2565 mfi_skinny_fw_state(struct mfi_softc *sc)
   2566 {
   2567 	return (mfi_read(sc, MFI_OSP));
   2568 }
   2569 
   2570 void
   2571 mfi_skinny_intr_dis(struct mfi_softc *sc)
   2572 {
   2573 	mfi_write(sc, MFI_OMSK, 0);
   2574 }
   2575 
   2576 void
   2577 mfi_skinny_intr_ena(struct mfi_softc *sc)
   2578 {
   2579 	mfi_write(sc, MFI_OMSK, ~0x00000001);
   2580 }
   2581 
   2582 int
   2583 mfi_skinny_intr(struct mfi_softc *sc)
   2584 {
   2585 	u_int32_t status;
   2586 
   2587 	status = mfi_read(sc, MFI_OSTS);
   2588 	if (!ISSET(status, MFI_OSTS_SKINNY_INTR_VALID))
   2589 		return (0);
   2590 
   2591 	/* write status back to acknowledge interrupt */
   2592 	mfi_write(sc, MFI_OSTS, status);
   2593 
   2594 	return (1);
   2595 }
   2596 
   2597 void
   2598 mfi_skinny_post(struct mfi_softc *sc, struct mfi_ccb *ccb)
   2599 {
   2600 	mfi_write(sc, MFI_IQPL, 0x1 | ccb->ccb_pframe |
   2601 	    (ccb->ccb_extra_frames << 1));
   2602 	mfi_write(sc, MFI_IQPH, 0x00000000);
   2603 	ccb->ccb_state = MFI_CCB_RUNNING;
   2604 }
   2605 
   2606 #define MFI_FUSION_ENABLE_INTERRUPT_MASK	(0x00000008)
   2607 
   2608 void
   2609 mfi_tbolt_intr_ena(struct mfi_softc *sc)
   2610 {
   2611 	mfi_write(sc, MFI_OMSK, ~MFI_FUSION_ENABLE_INTERRUPT_MASK);
   2612 	mfi_read(sc, MFI_OMSK);
   2613 }
   2614 
   2615 void
   2616 mfi_tbolt_intr_dis(struct mfi_softc *sc)
   2617 {
   2618 	mfi_write(sc, MFI_OMSK, 0xFFFFFFFF);
   2619 	mfi_read(sc, MFI_OMSK);
   2620 }
   2621 
   2622 int
   2623 mfi_tbolt_intr(struct mfi_softc *sc)
   2624 {
   2625 	int32_t status;
   2626 
   2627 	status = mfi_read(sc, MFI_OSTS);
   2628 
   2629 	if (ISSET(status, 0x1)) {
   2630 		mfi_write(sc, MFI_OSTS, status);
   2631 		mfi_read(sc, MFI_OSTS);
   2632 		if (ISSET(status, MFI_STATE_CHANGE_INTERRUPT))
   2633 			return 0;
   2634 		return 1;
   2635 	}
   2636 	if (!ISSET(status, MFI_FUSION_ENABLE_INTERRUPT_MASK))
   2637 		return 0;
   2638 	mfi_read(sc, MFI_OSTS);
   2639 	return 1;
   2640 }
   2641 
   2642 u_int32_t
   2643 mfi_tbolt_fw_state(struct mfi_softc *sc)
   2644 {
   2645 	return mfi_read(sc, MFI_OSP);
   2646 }
   2647 
   2648 void
   2649 mfi_tbolt_post(struct mfi_softc *sc, struct mfi_ccb *ccb)
   2650 {
   2651 	if (sc->sc_MFA_enabled) {
   2652 		if ((ccb->ccb_flags & MFI_CCB_F_TBOLT) == 0)
   2653 			mfi_tbolt_build_mpt_ccb(ccb);
   2654 		mfi_write(sc, MFI_IQPL,
   2655 		    ccb->ccb_tb_request_desc.words & 0xFFFFFFFF);
   2656 		mfi_write(sc, MFI_IQPH,
   2657 		    ccb->ccb_tb_request_desc.words >> 32);
   2658 		ccb->ccb_state = MFI_CCB_RUNNING;
   2659 		return;
   2660 	}
   2661 	uint64_t bus_add = ccb->ccb_pframe;
   2662 	bus_add |= (MFI_REQ_DESCRIPT_FLAGS_MFA
   2663 	    << MFI_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
   2664 	mfi_write(sc, MFI_IQPL, bus_add);
   2665 	mfi_write(sc, MFI_IQPH, bus_add >> 32);
   2666 	ccb->ccb_state = MFI_CCB_RUNNING;
   2667 }
   2668 
   2669 static void
   2670 mfi_tbolt_build_mpt_ccb(struct mfi_ccb *ccb)
   2671 {
   2672 	union mfi_mpi2_request_descriptor *req_desc = &ccb->ccb_tb_request_desc;
   2673 	struct mfi_mpi2_request_raid_scsi_io *io_req = ccb->ccb_tb_io_request;
   2674 	struct mpi25_ieee_sge_chain64 *mpi25_ieee_chain;
   2675 
   2676 	io_req->Function = MPI2_FUNCTION_PASSTHRU_IO_REQUEST;
   2677 	io_req->SGLOffset0 =
   2678 	    offsetof(struct mfi_mpi2_request_raid_scsi_io, SGL) / 4;
   2679 	io_req->ChainOffset =
   2680 	    offsetof(struct mfi_mpi2_request_raid_scsi_io, SGL) / 16;
   2681 
   2682 	mpi25_ieee_chain =
   2683 	    (struct mpi25_ieee_sge_chain64 *)&io_req->SGL.IeeeChain;
   2684 	mpi25_ieee_chain->Address = ccb->ccb_pframe;
   2685 
   2686 	/*
   2687 	  In MFI pass thru, nextChainOffset will always be zero to
   2688 	  indicate the end of the chain.
   2689 	*/
   2690 	mpi25_ieee_chain->Flags= MPI2_IEEE_SGE_FLAGS_CHAIN_ELEMENT
   2691 		| MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR;
   2692 
   2693 	/* setting the length to the maximum length */
   2694 	mpi25_ieee_chain->Length = 1024;
   2695 
   2696 	req_desc->header.RequestFlags = (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
   2697 	    MFI_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
   2698 	ccb->ccb_flags |= MFI_CCB_F_TBOLT;
   2699 	bus_dmamap_sync(ccb->ccb_sc->sc_dmat,
   2700 	    MFIMEM_MAP(ccb->ccb_sc->sc_tbolt_reqmsgpool),
   2701 	    ccb->ccb_tb_pio_request -
   2702 	     MFIMEM_DVA(ccb->ccb_sc->sc_tbolt_reqmsgpool),
   2703 	    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE,
   2704 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   2705 }
   2706 
   2707 /*
   2708  * Description:
   2709  *      This function will prepare message pools for the Thunderbolt controller
   2710  */
   2711 static int
   2712 mfi_tbolt_init_desc_pool(struct mfi_softc *sc)
   2713 {
   2714 	uint32_t     offset = 0;
   2715 	uint8_t      *addr = MFIMEM_KVA(sc->sc_tbolt_reqmsgpool);
   2716 
   2717 	/* Request Decriptors alignement restrictions */
   2718 	KASSERT(((uintptr_t)addr & 0xFF) == 0);
   2719 
   2720 	/* Skip request message pool */
   2721 	addr = &addr[MEGASAS_THUNDERBOLT_NEW_MSG_SIZE * (sc->sc_max_cmds + 1)];
   2722 
   2723 	/* Reply Frame Pool is initialized */
   2724 	sc->sc_reply_frame_pool = (struct mfi_mpi2_reply_header *) addr;
   2725 	KASSERT(((uintptr_t)addr & 0xFF) == 0);
   2726 
   2727 	offset = (uintptr_t)sc->sc_reply_frame_pool
   2728 	    - (uintptr_t)MFIMEM_KVA(sc->sc_tbolt_reqmsgpool);
   2729 	sc->sc_reply_frame_busaddr =
   2730 	    MFIMEM_DVA(sc->sc_tbolt_reqmsgpool) + offset;
   2731 
   2732 	/* initializing reply address to 0xFFFFFFFF */
   2733 	memset((uint8_t *)sc->sc_reply_frame_pool, 0xFF,
   2734 	       (MEGASAS_THUNDERBOLT_REPLY_SIZE * sc->sc_reply_pool_size));
   2735 
   2736 	/* Skip Reply Frame Pool */
   2737 	addr += MEGASAS_THUNDERBOLT_REPLY_SIZE * sc->sc_reply_pool_size;
   2738 	sc->sc_reply_pool_limit = (void *)addr;
   2739 
   2740 	offset = MEGASAS_THUNDERBOLT_REPLY_SIZE * sc->sc_reply_pool_size;
   2741 	sc->sc_sg_frame_busaddr = sc->sc_reply_frame_busaddr + offset;
   2742 
   2743 	/* initialize the last_reply_idx to 0 */
   2744 	sc->sc_last_reply_idx = 0;
   2745 	offset = (sc->sc_sg_frame_busaddr + (MEGASAS_MAX_SZ_CHAIN_FRAME *
   2746 	    sc->sc_max_cmds)) - MFIMEM_DVA(sc->sc_tbolt_reqmsgpool);
   2747 	KASSERT(offset <= sc->sc_tbolt_reqmsgpool->am_size);
   2748 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_tbolt_reqmsgpool), 0,
   2749 	    MFIMEM_MAP(sc->sc_tbolt_reqmsgpool)->dm_mapsize,
   2750 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   2751 	return 0;
   2752 }
   2753 
   2754 /*
   2755  * This routine prepare and issue INIT2 frame to the Firmware
   2756  */
   2757 
   2758 static int
   2759 mfi_tbolt_init_MFI_queue(struct mfi_softc *sc)
   2760 {
   2761 	struct mpi2_ioc_init_request   *mpi2IocInit;
   2762 	struct mfi_init_frame		*mfi_init;
   2763 	struct mfi_ccb			*ccb;
   2764 	bus_addr_t			phyAddress;
   2765 	mfi_address			*mfiAddressTemp;
   2766 	int				s;
   2767 	char				*verbuf;
   2768 	char				wqbuf[10];
   2769 
   2770 	/* Check if initialization is already completed */
   2771 	if (sc->sc_MFA_enabled) {
   2772 		return 1;
   2773 	}
   2774 
   2775 	mpi2IocInit =
   2776 	    (struct mpi2_ioc_init_request *)MFIMEM_KVA(sc->sc_tbolt_ioc_init);
   2777 
   2778 	s = splbio();
   2779 	if ((ccb = mfi_get_ccb(sc)) == NULL) {
   2780 		splx(s);
   2781 		return (EBUSY);
   2782 	}
   2783 
   2784 
   2785 	mfi_init = &ccb->ccb_frame->mfr_init;
   2786 
   2787 	memset(mpi2IocInit, 0, sizeof(struct mpi2_ioc_init_request));
   2788 	mpi2IocInit->Function  = MPI2_FUNCTION_IOC_INIT;
   2789 	mpi2IocInit->WhoInit   = MPI2_WHOINIT_HOST_DRIVER;
   2790 
   2791 	/* set MsgVersion and HeaderVersion host driver was built with */
   2792 	mpi2IocInit->MsgVersion = MPI2_VERSION;
   2793 	mpi2IocInit->HeaderVersion = MPI2_HEADER_VERSION;
   2794 	mpi2IocInit->SystemRequestFrameSize = MEGASAS_THUNDERBOLT_NEW_MSG_SIZE/4;
   2795 	mpi2IocInit->ReplyDescriptorPostQueueDepth =
   2796 	    (uint16_t)sc->sc_reply_pool_size;
   2797 	mpi2IocInit->ReplyFreeQueueDepth = 0; /* Not supported by MR. */
   2798 
   2799 	/* Get physical address of reply frame pool */
   2800 	phyAddress = sc->sc_reply_frame_busaddr;
   2801 	mfiAddressTemp =
   2802 	    (mfi_address *)&mpi2IocInit->ReplyDescriptorPostQueueAddress;
   2803 	mfiAddressTemp->u.addressLow = (uint32_t)phyAddress;
   2804 	mfiAddressTemp->u.addressHigh = (uint32_t)((uint64_t)phyAddress >> 32);
   2805 
   2806 	/* Get physical address of request message pool */
   2807 	phyAddress =  MFIMEM_DVA(sc->sc_tbolt_reqmsgpool);
   2808 	mfiAddressTemp = (mfi_address *)&mpi2IocInit->SystemRequestFrameBaseAddress;
   2809 	mfiAddressTemp->u.addressLow = (uint32_t)phyAddress;
   2810 	mfiAddressTemp->u.addressHigh = (uint32_t)((uint64_t)phyAddress >> 32);
   2811 
   2812 	mpi2IocInit->ReplyFreeQueueAddress =  0; /* Not supported by MR. */
   2813 	mpi2IocInit->TimeStamp = time_uptime;
   2814 
   2815 	verbuf = MFIMEM_KVA(sc->sc_tbolt_verbuf);
   2816 	snprintf(verbuf, strlen(MEGASAS_VERSION) + 2, "%s\n",
   2817                 MEGASAS_VERSION);
   2818 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_tbolt_verbuf), 0,
   2819 	    MFIMEM_MAP(sc->sc_tbolt_verbuf)->dm_mapsize, BUS_DMASYNC_PREWRITE);
   2820 	mfi_init->driver_ver_lo = htole32(MFIMEM_DVA(sc->sc_tbolt_verbuf));
   2821 	mfi_init->driver_ver_hi =
   2822 		    htole32((uint64_t)MFIMEM_DVA(sc->sc_tbolt_verbuf) >> 32);
   2823 
   2824 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_tbolt_ioc_init), 0,
   2825 	    MFIMEM_MAP(sc->sc_tbolt_ioc_init)->dm_mapsize,
   2826 	    BUS_DMASYNC_PREWRITE);
   2827 	/* Get the physical address of the mpi2 ioc init command */
   2828 	phyAddress =  MFIMEM_DVA(sc->sc_tbolt_ioc_init);
   2829 	mfi_init->mif_qinfo_new_addr_lo = htole32(phyAddress);
   2830 	mfi_init->mif_qinfo_new_addr_hi = htole32((uint64_t)phyAddress >> 32);
   2831 
   2832 	mfi_init->mif_header.mfh_cmd = MFI_CMD_INIT;
   2833 	mfi_init->mif_header.mfh_data_len = sizeof(struct mpi2_ioc_init_request);
   2834 	if (mfi_poll(ccb) != 0) {
   2835 		aprint_error_dev(sc->sc_dev, "failed to send IOC init2 "
   2836 		    "command at 0x%" PRIx64 "\n",
   2837 		    (uint64_t)ccb->ccb_pframe);
   2838 		splx(s);
   2839 		return 1;
   2840 	}
   2841 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_tbolt_verbuf), 0,
   2842 	    MFIMEM_MAP(sc->sc_tbolt_verbuf)->dm_mapsize, BUS_DMASYNC_POSTWRITE);
   2843 	bus_dmamap_sync(sc->sc_dmat, MFIMEM_MAP(sc->sc_tbolt_ioc_init), 0,
   2844 	    MFIMEM_MAP(sc->sc_tbolt_ioc_init)->dm_mapsize,
   2845 	    BUS_DMASYNC_POSTWRITE);
   2846 	mfi_put_ccb(ccb);
   2847 	splx(s);
   2848 
   2849 	if (mfi_init->mif_header.mfh_cmd_status == 0) {
   2850 		sc->sc_MFA_enabled = 1;
   2851 	}
   2852 	else {
   2853 		aprint_error_dev(sc->sc_dev, "Init command Failed %x\n",
   2854 		    mfi_init->mif_header.mfh_cmd_status);
   2855 		return 1;
   2856 	}
   2857 
   2858 	snprintf(wqbuf, sizeof(wqbuf), "%swq", DEVNAME(sc));
   2859 	if (workqueue_create(&sc->sc_ldsync_wq, wqbuf, mfi_tbolt_sync_map_info,
   2860 	    sc, PRIBIO, IPL_BIO, 0) != 0) {
   2861 		aprint_error_dev(sc->sc_dev, "workqueue_create failed\n");
   2862 		return 1;
   2863 	}
   2864 	workqueue_enqueue(sc->sc_ldsync_wq, &sc->sc_ldsync_wk, NULL);
   2865 	return 0;
   2866 }
   2867 
   2868 int
   2869 mfi_tbolt_intrh(void *arg)
   2870 {
   2871 	struct mfi_softc	*sc = arg;
   2872 	struct mfi_ccb		*ccb;
   2873 	union mfi_mpi2_reply_descriptor *desc;
   2874 	int smid, num_completed;
   2875 
   2876 	if (!mfi_tbolt_intr(sc))
   2877 		return 0;
   2878 
   2879 	DNPRINTF(MFI_D_INTR, "%s: mfi_tbolt_intrh %#lx %#lx\n", DEVNAME(sc),
   2880 	    (u_long)sc, (u_long)sc->sc_last_reply_idx);
   2881 
   2882 	KASSERT(sc->sc_last_reply_idx < sc->sc_reply_pool_size);
   2883 
   2884 	desc = (union mfi_mpi2_reply_descriptor *)
   2885 	    ((uintptr_t)sc->sc_reply_frame_pool +
   2886 	     sc->sc_last_reply_idx * MEGASAS_THUNDERBOLT_REPLY_SIZE);
   2887 
   2888 	bus_dmamap_sync(sc->sc_dmat,
   2889 	    MFIMEM_MAP(sc->sc_tbolt_reqmsgpool),
   2890 	    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE * (sc->sc_max_cmds + 1),
   2891 	    MEGASAS_THUNDERBOLT_REPLY_SIZE * sc->sc_reply_pool_size,
   2892 	    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
   2893 	num_completed = 0;
   2894 	while ((desc->header.ReplyFlags & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK) !=
   2895 	    MPI2_RPY_DESCRIPT_FLAGS_UNUSED) {
   2896 		smid = desc->header.SMID;
   2897 		KASSERT(smid > 0 && smid <= sc->sc_max_cmds);
   2898 		ccb = &sc->sc_ccb[smid - 1];
   2899 		DNPRINTF(MFI_D_INTR,
   2900 		    "%s: mfi_tbolt_intr SMID %#x reply_idx %#x "
   2901 		    "desc %#" PRIx64 " ccb %p\n", DEVNAME(sc), smid,
   2902 		    sc->sc_last_reply_idx, desc->words, ccb);
   2903 		KASSERT(ccb->ccb_state == MFI_CCB_RUNNING);
   2904 		if (ccb->ccb_flags & MFI_CCB_F_TBOLT_IO &&
   2905 		    ccb->ccb_tb_io_request->ChainOffset != 0) {
   2906 			bus_dmamap_sync(sc->sc_dmat,
   2907 			    MFIMEM_MAP(sc->sc_tbolt_reqmsgpool),
   2908 			    ccb->ccb_tb_psg_frame -
   2909 				MFIMEM_DVA(sc->sc_tbolt_reqmsgpool),
   2910 			    MEGASAS_MAX_SZ_CHAIN_FRAME,  BUS_DMASYNC_POSTREAD);
   2911 		}
   2912 		if (ccb->ccb_flags & MFI_CCB_F_TBOLT_IO) {
   2913 			bus_dmamap_sync(sc->sc_dmat,
   2914 			    MFIMEM_MAP(sc->sc_tbolt_reqmsgpool),
   2915 			    ccb->ccb_tb_pio_request -
   2916 				MFIMEM_DVA(sc->sc_tbolt_reqmsgpool),
   2917 			    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE,
   2918 			    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
   2919 		}
   2920 		if (ccb->ccb_done)
   2921 			ccb->ccb_done(ccb);
   2922 		else
   2923 			ccb->ccb_state = MFI_CCB_DONE;
   2924 		sc->sc_last_reply_idx++;
   2925 		if (sc->sc_last_reply_idx >= sc->sc_reply_pool_size) {
   2926 			sc->sc_last_reply_idx = 0;
   2927 		}
   2928 		desc->words = ~0x0;
   2929 		/* Get the next reply descriptor */
   2930 		desc = (union mfi_mpi2_reply_descriptor *)
   2931 		    ((uintptr_t)sc->sc_reply_frame_pool +
   2932 		     sc->sc_last_reply_idx * MEGASAS_THUNDERBOLT_REPLY_SIZE);
   2933 		num_completed++;
   2934 	}
   2935 	if (num_completed == 0)
   2936 		return 0;
   2937 
   2938 	bus_dmamap_sync(sc->sc_dmat,
   2939 	    MFIMEM_MAP(sc->sc_tbolt_reqmsgpool),
   2940 	    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE * (sc->sc_max_cmds + 1),
   2941 	    MEGASAS_THUNDERBOLT_REPLY_SIZE * sc->sc_reply_pool_size,
   2942 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   2943 	mfi_write(sc, MFI_RPI, sc->sc_last_reply_idx);
   2944 	return 1;
   2945 }
   2946 
   2947 
   2948 int
   2949 mfi_tbolt_scsi_ld_io(struct mfi_ccb *ccb, struct scsipi_xfer *xs,
   2950     uint64_t blockno, uint32_t blockcnt)
   2951 {
   2952 	struct scsipi_periph *periph = xs->xs_periph;
   2953 	struct mfi_mpi2_request_raid_scsi_io    *io_req;
   2954 	int sge_count;
   2955 
   2956 	DNPRINTF(MFI_D_CMD, "%s: mfi_tbolt_scsi_ld_io: %d\n",
   2957 	    device_xname(periph->periph_channel->chan_adapter->adapt_dev),
   2958 	    periph->periph_target);
   2959 
   2960 	if (!xs->data)
   2961 		return 1;
   2962 
   2963 	ccb->ccb_done = mfi_tbolt_scsi_ld_done;
   2964 	ccb->ccb_xs = xs;
   2965 	ccb->ccb_data = xs->data;
   2966 	ccb->ccb_len = xs->datalen;
   2967 
   2968 	io_req = ccb->ccb_tb_io_request;
   2969 
   2970 	/* Just the CDB length,rest of the Flags are zero */
   2971 	io_req->IoFlags = xs->cmdlen;
   2972 	memset(io_req->CDB.CDB32, 0, 32);
   2973 	memcpy(io_req->CDB.CDB32, &xs->cmdstore, xs->cmdlen);
   2974 
   2975 	io_req->RaidContext.TargetID = periph->periph_target;
   2976 	io_req->RaidContext.Status = 0;
   2977 	io_req->RaidContext.exStatus = 0;
   2978 	io_req->RaidContext.timeoutValue = MFI_FUSION_FP_DEFAULT_TIMEOUT;
   2979 	io_req->Function = MPI2_FUNCTION_LD_IO_REQUEST;
   2980 	io_req->DevHandle = periph->periph_target;
   2981 
   2982 	ccb->ccb_tb_request_desc.header.RequestFlags =
   2983 	    (MFI_REQ_DESCRIPT_FLAGS_LD_IO << MFI_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
   2984 	io_req->DataLength = blockcnt * MFI_SECTOR_LEN;
   2985 
   2986 	if (xs->xs_control & XS_CTL_DATA_IN) {
   2987 		io_req->Control = MPI2_SCSIIO_CONTROL_READ;
   2988 		ccb->ccb_direction = MFI_DATA_IN;
   2989 	} else {
   2990 		io_req->Control = MPI2_SCSIIO_CONTROL_WRITE;
   2991 		ccb->ccb_direction = MFI_DATA_OUT;
   2992 	}
   2993 
   2994 	sge_count = mfi_tbolt_create_sgl(ccb,
   2995 	    (xs->xs_control & XS_CTL_NOSLEEP) ? BUS_DMA_NOWAIT : BUS_DMA_WAITOK
   2996 	    );
   2997 	if (sge_count < 0)
   2998 		return 1;
   2999 	KASSERT(sge_count <= ccb->ccb_sc->sc_max_sgl);
   3000 	io_req->RaidContext.numSGE = sge_count;
   3001 	io_req->SGLFlags = MPI2_SGE_FLAGS_64_BIT_ADDRESSING;
   3002 	io_req->SGLOffset0 =
   3003 	    offsetof(struct mfi_mpi2_request_raid_scsi_io, SGL) / 4;
   3004 
   3005 	io_req->SenseBufferLowAddress = htole32(ccb->ccb_psense);
   3006 	io_req->SenseBufferLength = MFI_SENSE_SIZE;
   3007 
   3008 	ccb->ccb_flags |= MFI_CCB_F_TBOLT | MFI_CCB_F_TBOLT_IO;
   3009 	bus_dmamap_sync(ccb->ccb_sc->sc_dmat,
   3010 	    MFIMEM_MAP(ccb->ccb_sc->sc_tbolt_reqmsgpool),
   3011 	    ccb->ccb_tb_pio_request -
   3012 	     MFIMEM_DVA(ccb->ccb_sc->sc_tbolt_reqmsgpool),
   3013 	    MEGASAS_THUNDERBOLT_NEW_MSG_SIZE,
   3014 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   3015 
   3016 	return 0;
   3017 }
   3018 
   3019 
   3020 static void
   3021 mfi_tbolt_scsi_ld_done(struct mfi_ccb *ccb)
   3022 {
   3023 	struct mfi_mpi2_request_raid_scsi_io *io_req = ccb->ccb_tb_io_request;
   3024 	mfi_scsi_xs_done(ccb, io_req->RaidContext.Status,
   3025 	    io_req->RaidContext.exStatus);
   3026 }
   3027 
   3028 static int
   3029 mfi_tbolt_create_sgl(struct mfi_ccb *ccb, int flags)
   3030 {
   3031 	struct mfi_softc	*sc = ccb->ccb_sc;
   3032 	bus_dma_segment_t	*sgd;
   3033 	int			error, i, sge_idx, sge_count;
   3034 	struct mfi_mpi2_request_raid_scsi_io *io_req;
   3035 	struct mpi25_ieee_sge_chain64 *sgl_ptr;
   3036 
   3037 	DNPRINTF(MFI_D_DMA, "%s: mfi_tbolt_create_sgl %#lx\n", DEVNAME(sc),
   3038 	    (u_long)ccb->ccb_data);
   3039 
   3040 	if (!ccb->ccb_data)
   3041 		return -1;
   3042 
   3043 	KASSERT(flags == BUS_DMA_NOWAIT || !cpu_intr_p());
   3044 	error = bus_dmamap_load(sc->sc_datadmat, ccb->ccb_dmamap,
   3045 	    ccb->ccb_data, ccb->ccb_len, NULL, flags);
   3046 	if (error) {
   3047 		if (error == EFBIG)
   3048 			aprint_error_dev(sc->sc_dev, "more than %d dma segs\n",
   3049 			    sc->sc_max_sgl);
   3050 		else
   3051 			aprint_error_dev(sc->sc_dev,
   3052 			    "error %d loading dma map\n", error);
   3053 		return -1;
   3054 	}
   3055 
   3056 	io_req = ccb->ccb_tb_io_request;
   3057 	sgl_ptr = &io_req->SGL.IeeeChain.Chain64;
   3058 	sge_count = ccb->ccb_dmamap->dm_nsegs;
   3059 	sgd = ccb->ccb_dmamap->dm_segs;
   3060 	KASSERT(sge_count <= sc->sc_max_sgl);
   3061 	KASSERT(sge_count <=
   3062 	    (MEGASAS_THUNDERBOLT_MAX_SGE_IN_MAINMSG - 1 +
   3063 	     MEGASAS_THUNDERBOLT_MAX_SGE_IN_CHAINMSG));
   3064 
   3065 	if (sge_count > MEGASAS_THUNDERBOLT_MAX_SGE_IN_MAINMSG) {
   3066 		/* One element to store the chain info */
   3067 		sge_idx = MEGASAS_THUNDERBOLT_MAX_SGE_IN_MAINMSG - 1;
   3068 		DNPRINTF(MFI_D_DMA,
   3069 		    "mfi sge_idx %d sge_count %d io_req paddr 0x%" PRIx64 "\n",
   3070 		    sge_idx, sge_count, ccb->ccb_tb_pio_request);
   3071 	} else {
   3072 		sge_idx = sge_count;
   3073 	}
   3074 
   3075 	for (i = 0; i < sge_idx; i++) {
   3076 		sgl_ptr->Address = htole64(sgd[i].ds_addr);
   3077 		sgl_ptr->Length = htole32(sgd[i].ds_len);
   3078 		sgl_ptr->Flags = 0;
   3079 		if (sge_idx < sge_count) {
   3080 			DNPRINTF(MFI_D_DMA,
   3081 			    "sgl %p %d 0x%" PRIx64 " len 0x%" PRIx32
   3082 			    " flags 0x%x\n", sgl_ptr, i,
   3083 			    sgl_ptr->Address, sgl_ptr->Length,
   3084 			    sgl_ptr->Flags);
   3085 		}
   3086 		sgl_ptr++;
   3087 	}
   3088 	io_req->ChainOffset = 0;
   3089 	if (sge_idx < sge_count) {
   3090 		struct mpi25_ieee_sge_chain64 *sg_chain;
   3091 		io_req->ChainOffset = MEGASAS_THUNDERBOLT_CHAIN_OFF_MAINMSG;
   3092 		sg_chain = sgl_ptr;
   3093 		/* Prepare chain element */
   3094 		sg_chain->NextChainOffset = 0;
   3095 		sg_chain->Flags = (MPI2_IEEE_SGE_FLAGS_CHAIN_ELEMENT |
   3096 		    MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR);
   3097 		sg_chain->Length =  (sizeof(mpi2_sge_io_union) *
   3098 		    (sge_count - sge_idx));
   3099 		sg_chain->Address = ccb->ccb_tb_psg_frame;
   3100 		DNPRINTF(MFI_D_DMA,
   3101 		    "sgl %p chain 0x%" PRIx64 " len 0x%" PRIx32
   3102 		    " flags 0x%x\n", sg_chain, sg_chain->Address,
   3103 		    sg_chain->Length, sg_chain->Flags);
   3104 		sgl_ptr = &ccb->ccb_tb_sg_frame->IeeeChain.Chain64;
   3105 		for (; i < sge_count; i++) {
   3106 			sgl_ptr->Address = htole64(sgd[i].ds_addr);
   3107 			sgl_ptr->Length = htole32(sgd[i].ds_len);
   3108 			sgl_ptr->Flags = 0;
   3109 			DNPRINTF(MFI_D_DMA,
   3110 			    "sgl %p %d 0x%" PRIx64 " len 0x%" PRIx32
   3111 			    " flags 0x%x\n", sgl_ptr, i, sgl_ptr->Address,
   3112 			    sgl_ptr->Length, sgl_ptr->Flags);
   3113 			sgl_ptr++;
   3114 		}
   3115 		bus_dmamap_sync(sc->sc_dmat,
   3116 		    MFIMEM_MAP(sc->sc_tbolt_reqmsgpool),
   3117 		    ccb->ccb_tb_psg_frame - MFIMEM_DVA(sc->sc_tbolt_reqmsgpool),
   3118 		    MEGASAS_MAX_SZ_CHAIN_FRAME,  BUS_DMASYNC_PREREAD);
   3119 	}
   3120 
   3121 	if (ccb->ccb_direction == MFI_DATA_IN) {
   3122 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   3123 		    ccb->ccb_dmamap->dm_mapsize, BUS_DMASYNC_PREREAD);
   3124 	} else {
   3125 		bus_dmamap_sync(sc->sc_datadmat, ccb->ccb_dmamap, 0,
   3126 		    ccb->ccb_dmamap->dm_mapsize, BUS_DMASYNC_PREWRITE);
   3127 	}
   3128 	return sge_count;
   3129 }
   3130 
   3131 /*
   3132  * The ThunderBolt HW has an option for the driver to directly
   3133  * access the underlying disks and operate on the RAID.  To
   3134  * do this there needs to be a capability to keep the RAID controller
   3135  * and driver in sync.  The FreeBSD driver does not take advantage
   3136  * of this feature since it adds a lot of complexity and slows down
   3137  * performance.  Performance is gained by using the controller's
   3138  * cache etc.
   3139  *
   3140  * Even though this driver doesn't access the disks directly, an
   3141  * AEN like command is used to inform the RAID firmware to "sync"
   3142  * with all LD's via the MFI_DCMD_LD_MAP_GET_INFO command.  This
   3143  * command in write mode will return when the RAID firmware has
   3144  * detected a change to the RAID state.  Examples of this type
   3145  * of change are removing a disk.  Once the command returns then
   3146  * the driver needs to acknowledge this and "sync" all LD's again.
   3147  * This repeats until we shutdown.  Then we need to cancel this
   3148  * pending command.
   3149  *
   3150  * If this is not done right the RAID firmware will not remove a
   3151  * pulled drive and the RAID won't go degraded etc.  Effectively,
   3152  * stopping any RAID mangement to functions.
   3153  *
   3154  * Doing another LD sync, requires the use of an event since the
   3155  * driver needs to do a mfi_wait_command and can't do that in an
   3156  * interrupt thread.
   3157  *
   3158  * The driver could get the RAID state via the MFI_DCMD_LD_MAP_GET_INFO
   3159  * That requires a bunch of structure and it is simplier to just do
   3160  * the MFI_DCMD_LD_GET_LIST versus walking the RAID map.
   3161  */
   3162 
   3163 void
   3164 mfi_tbolt_sync_map_info(struct work *w, void *v)
   3165 {
   3166 	struct mfi_softc *sc = v;
   3167 	int i;
   3168 	struct mfi_ccb *ccb = NULL;
   3169 	uint8_t mbox[MFI_MBOX_SIZE];
   3170 	struct mfi_ld *ld_sync = NULL;
   3171 	size_t ld_size;
   3172 	int s;
   3173 
   3174 	DNPRINTF(MFI_D_SYNC, "%s: mfi_tbolt_sync_map_info\n", DEVNAME(sc));
   3175 again:
   3176 	s = splbio();
   3177 	if (sc->sc_ldsync_ccb != NULL) {
   3178 		splx(s);
   3179 		return;
   3180 	}
   3181 
   3182 	if (mfi_mgmt_internal(sc, MR_DCMD_LD_GET_LIST, MFI_DATA_IN,
   3183 	    sizeof(sc->sc_ld_list), &sc->sc_ld_list, NULL)) {
   3184 		aprint_error_dev(sc->sc_dev, "MR_DCMD_LD_GET_LIST failed\n");
   3185 		goto err;
   3186 	}
   3187 
   3188 	ld_size = sizeof(*ld_sync) * sc->sc_ld_list.mll_no_ld;
   3189 
   3190 	ld_sync = (struct mfi_ld *) malloc(ld_size, M_DEVBUF,
   3191 	     M_WAITOK | M_ZERO);
   3192 	if (ld_sync == NULL) {
   3193 		aprint_error_dev(sc->sc_dev, "Failed to allocate sync\n");
   3194 		goto err;
   3195 	}
   3196 	for (i = 0; i < sc->sc_ld_list.mll_no_ld; i++) {
   3197 		ld_sync[i] = sc->sc_ld_list.mll_list[i].mll_ld;
   3198 	}
   3199 
   3200 	if ((ccb = mfi_get_ccb(sc)) == NULL) {
   3201 		aprint_error_dev(sc->sc_dev, "Failed to get sync command\n");
   3202 		free(ld_sync, M_DEVBUF);
   3203 		goto err;
   3204 	}
   3205 	sc->sc_ldsync_ccb = ccb;
   3206 
   3207 	memset(mbox, 0, MFI_MBOX_SIZE);
   3208 	mbox[0] = sc->sc_ld_list.mll_no_ld;
   3209 	mbox[1] = MFI_DCMD_MBOX_PEND_FLAG;
   3210 	if (mfi_mgmt(ccb, NULL, MR_DCMD_LD_MAP_GET_INFO, MFI_DATA_OUT,
   3211 	    ld_size, ld_sync, mbox)) {
   3212 		aprint_error_dev(sc->sc_dev, "Failed to create sync command\n");
   3213 		goto err;
   3214 	}
   3215 	/*
   3216 	 * we won't sleep on this command, so we have to override
   3217 	 * the callback set up by mfi_mgmt()
   3218 	 */
   3219 	ccb->ccb_done = mfi_sync_map_complete;
   3220 
   3221 	mfi_post(sc, ccb);
   3222 	splx(s);
   3223 	return;
   3224 
   3225 err:
   3226 	if (ld_sync)
   3227 		free(ld_sync, M_DEVBUF);
   3228 	if (ccb)
   3229 		mfi_put_ccb(ccb);
   3230 	sc->sc_ldsync_ccb = NULL;
   3231 	splx(s);
   3232 	kpause("ldsyncp", 0, hz, NULL);
   3233 	goto again;
   3234 }
   3235 
   3236 static void
   3237 mfi_sync_map_complete(struct mfi_ccb *ccb)
   3238 {
   3239 	struct mfi_softc *sc = ccb->ccb_sc;
   3240 	int aborted = 0;
   3241 
   3242 	DNPRINTF(MFI_D_SYNC, "%s: mfi_sync_map_complete\n",
   3243 	    DEVNAME(ccb->ccb_sc));
   3244 	KASSERT(sc->sc_ldsync_ccb == ccb);
   3245 	mfi_mgmt_done(ccb);
   3246 	free(ccb->ccb_data, M_DEVBUF);
   3247 	if (ccb->ccb_flags & MFI_CCB_F_ERR) {
   3248 		aprint_error_dev(sc->sc_dev, "sync command failed\n");
   3249 		aborted = 1;
   3250 	}
   3251 	mfi_put_ccb(ccb);
   3252 	sc->sc_ldsync_ccb = NULL;
   3253 
   3254 	/* set it up again so the driver can catch more events */
   3255 	if (!aborted) {
   3256 		workqueue_enqueue(sc->sc_ldsync_wq, &sc->sc_ldsync_wk, NULL);
   3257 	}
   3258 }
   3259