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mpt_netbsd.c revision 1.13
      1  1.13      tron /*	$NetBSD: mpt_netbsd.c,v 1.13 2007/08/04 22:01:06 tron Exp $	*/
      2   1.1   thorpej 
      3   1.1   thorpej /*
      4   1.1   thorpej  * Copyright (c) 2003 Wasabi Systems, Inc.
      5   1.1   thorpej  * All rights reserved.
      6   1.1   thorpej  *
      7   1.1   thorpej  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
      8   1.1   thorpej  *
      9   1.1   thorpej  * Redistribution and use in source and binary forms, with or without
     10   1.1   thorpej  * modification, are permitted provided that the following conditions
     11   1.1   thorpej  * are met:
     12   1.1   thorpej  * 1. Redistributions of source code must retain the above copyright
     13   1.1   thorpej  *    notice, this list of conditions and the following disclaimer.
     14   1.1   thorpej  * 2. Redistributions in binary form must reproduce the above copyright
     15   1.1   thorpej  *    notice, this list of conditions and the following disclaimer in the
     16   1.1   thorpej  *    documentation and/or other materials provided with the distribution.
     17   1.1   thorpej  * 3. All advertising materials mentioning features or use of this software
     18   1.1   thorpej  *    must display the following acknowledgement:
     19   1.1   thorpej  *	This product includes software developed for the NetBSD Project by
     20   1.1   thorpej  *	Wasabi Systems, Inc.
     21   1.1   thorpej  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     22   1.1   thorpej  *    or promote products derived from this software without specific prior
     23   1.1   thorpej  *    written permission.
     24   1.1   thorpej  *
     25   1.1   thorpej  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     26   1.1   thorpej  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27   1.1   thorpej  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28   1.1   thorpej  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     29   1.1   thorpej  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30   1.1   thorpej  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31   1.1   thorpej  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32   1.1   thorpej  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33   1.1   thorpej  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34   1.1   thorpej  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35   1.1   thorpej  * POSSIBILITY OF SUCH DAMAGE.
     36   1.1   thorpej  */
     37   1.1   thorpej 
     38   1.1   thorpej /*
     39   1.1   thorpej  * Copyright (c) 2000, 2001 by Greg Ansley
     40   1.1   thorpej  * Partially derived from Matt Jacob's ISP driver.
     41   1.1   thorpej  *
     42   1.1   thorpej  * Redistribution and use in source and binary forms, with or without
     43   1.1   thorpej  * modification, are permitted provided that the following conditions
     44   1.1   thorpej  * are met:
     45   1.1   thorpej  * 1. Redistributions of source code must retain the above copyright
     46   1.1   thorpej  *    notice immediately at the beginning of the file, without modification,
     47   1.1   thorpej  *    this list of conditions, and the following disclaimer.
     48   1.1   thorpej  * 2. The name of the author may not be used to endorse or promote products
     49   1.1   thorpej  *    derived from this software without specific prior written permission.
     50   1.1   thorpej  *
     51   1.1   thorpej  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     52   1.1   thorpej  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     53   1.1   thorpej  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     54   1.1   thorpej  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
     55   1.1   thorpej  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     56   1.1   thorpej  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     57   1.1   thorpej  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     58   1.1   thorpej  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     59   1.1   thorpej  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     60   1.1   thorpej  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     61   1.1   thorpej  * SUCH DAMAGE.
     62   1.1   thorpej  */
     63   1.1   thorpej /*
     64   1.1   thorpej  * Additional Copyright (c) 2002 by Matthew Jacob under same license.
     65   1.1   thorpej  */
     66   1.1   thorpej 
     67   1.1   thorpej /*
     68   1.1   thorpej  * mpt_netbsd.c:
     69   1.1   thorpej  *
     70   1.1   thorpej  * NetBSD-specific routines for LSI Fusion adapters.  Includes some
     71   1.1   thorpej  * bus_dma glue, and SCSIPI glue.
     72   1.1   thorpej  *
     73   1.1   thorpej  * Adapted from the FreeBSD "mpt" driver by Jason R. Thorpe for
     74   1.1   thorpej  * Wasabi Systems, Inc.
     75  1.12      tron  *
     76  1.12      tron  * Additional contributions by Garrett D'Amore on behalf of TELES AG.
     77   1.1   thorpej  */
     78   1.7     lukem 
     79   1.7     lukem #include <sys/cdefs.h>
     80  1.13      tron __KERNEL_RCSID(0, "$NetBSD: mpt_netbsd.c,v 1.13 2007/08/04 22:01:06 tron Exp $");
     81   1.1   thorpej 
     82   1.1   thorpej #include <dev/ic/mpt.h>			/* pulls in all headers */
     83   1.1   thorpej 
     84   1.1   thorpej #include <machine/stdarg.h>		/* for mpt_prt() */
     85   1.1   thorpej 
     86   1.1   thorpej static int	mpt_poll(mpt_softc_t *, struct scsipi_xfer *, int);
     87   1.1   thorpej static void	mpt_timeout(void *);
     88   1.1   thorpej static void	mpt_done(mpt_softc_t *, uint32_t);
     89   1.1   thorpej static void	mpt_run_xfer(mpt_softc_t *, struct scsipi_xfer *);
     90   1.1   thorpej static void	mpt_set_xfer_mode(mpt_softc_t *, struct scsipi_xfer_mode *);
     91   1.1   thorpej static void	mpt_get_xfer_mode(mpt_softc_t *, struct scsipi_periph *);
     92   1.1   thorpej static void	mpt_ctlop(mpt_softc_t *, void *vmsg, uint32_t);
     93   1.1   thorpej static void	mpt_event_notify_reply(mpt_softc_t *, MSG_EVENT_NOTIFY_REPLY *);
     94   1.1   thorpej 
     95   1.1   thorpej static void	mpt_scsipi_request(struct scsipi_channel *,
     96   1.1   thorpej 		    scsipi_adapter_req_t, void *);
     97   1.1   thorpej static void	mpt_minphys(struct buf *);
     98   1.1   thorpej 
     99   1.1   thorpej void
    100   1.1   thorpej mpt_scsipi_attach(mpt_softc_t *mpt)
    101   1.1   thorpej {
    102   1.1   thorpej 	struct scsipi_adapter *adapt = &mpt->sc_adapter;
    103   1.1   thorpej 	struct scsipi_channel *chan = &mpt->sc_channel;
    104   1.1   thorpej 	int maxq;
    105   1.1   thorpej 
    106   1.1   thorpej 	mpt->bus = 0;		/* XXX ?? */
    107   1.1   thorpej 
    108   1.1   thorpej 	maxq = (mpt->mpt_global_credits < MPT_MAX_REQUESTS(mpt)) ?
    109   1.1   thorpej 	    mpt->mpt_global_credits : MPT_MAX_REQUESTS(mpt);
    110   1.1   thorpej 
    111   1.1   thorpej 	/* Fill in the scsipi_adapter. */
    112   1.1   thorpej 	memset(adapt, 0, sizeof(*adapt));
    113   1.1   thorpej 	adapt->adapt_dev = &mpt->sc_dev;
    114   1.1   thorpej 	adapt->adapt_nchannels = 1;
    115   1.1   thorpej 	adapt->adapt_openings = maxq;
    116   1.1   thorpej 	adapt->adapt_max_periph = maxq;
    117   1.1   thorpej 	adapt->adapt_request = mpt_scsipi_request;
    118   1.1   thorpej 	adapt->adapt_minphys = mpt_minphys;
    119   1.1   thorpej 
    120   1.1   thorpej 	/* Fill in the scsipi_channel. */
    121   1.1   thorpej 	memset(chan, 0, sizeof(*chan));
    122   1.1   thorpej 	chan->chan_adapter = adapt;
    123   1.1   thorpej 	chan->chan_bustype = &scsi_bustype;
    124   1.1   thorpej 	chan->chan_channel = 0;
    125   1.1   thorpej 	chan->chan_flags = 0;
    126   1.1   thorpej 	chan->chan_nluns = 8;
    127  1.12      tron 	chan->chan_ntargets = mpt->mpt_max_devices;
    128  1.12      tron 	chan->chan_id = mpt->mpt_ini_id;
    129   1.1   thorpej 
    130   1.1   thorpej 	(void) config_found(&mpt->sc_dev, &mpt->sc_channel, scsiprint);
    131   1.1   thorpej }
    132   1.1   thorpej 
    133   1.1   thorpej int
    134   1.1   thorpej mpt_dma_mem_alloc(mpt_softc_t *mpt)
    135   1.1   thorpej {
    136   1.1   thorpej 	bus_dma_segment_t reply_seg, request_seg;
    137   1.1   thorpej 	int reply_rseg, request_rseg;
    138   1.1   thorpej 	bus_addr_t pptr, end;
    139  1.11  christos 	char *vptr;
    140   1.1   thorpej 	size_t len;
    141   1.1   thorpej 	int error, i;
    142   1.1   thorpej 
    143   1.1   thorpej 	/* Check if we have already allocated the reply memory. */
    144   1.1   thorpej 	if (mpt->reply != NULL)
    145   1.1   thorpej 		return (0);
    146   1.1   thorpej 
    147   1.1   thorpej 	/*
    148   1.1   thorpej 	 * Allocate the request pool.  This isn't really DMA'd memory,
    149   1.1   thorpej 	 * but it's a convenient place to do it.
    150   1.1   thorpej 	 */
    151   1.1   thorpej 	len = sizeof(request_t) * MPT_MAX_REQUESTS(mpt);
    152   1.1   thorpej 	mpt->request_pool = malloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
    153   1.1   thorpej 	if (mpt->request_pool == NULL) {
    154   1.1   thorpej 		aprint_error("%s: unable to allocate request pool\n",
    155   1.1   thorpej 		    mpt->sc_dev.dv_xname);
    156   1.1   thorpej 		return (ENOMEM);
    157   1.1   thorpej 	}
    158   1.1   thorpej 
    159   1.1   thorpej 	/*
    160   1.1   thorpej 	 * Allocate DMA resources for reply buffers.
    161   1.1   thorpej 	 */
    162   1.1   thorpej 	error = bus_dmamem_alloc(mpt->sc_dmat, PAGE_SIZE, PAGE_SIZE, 0,
    163   1.1   thorpej 	    &reply_seg, 1, &reply_rseg, 0);
    164   1.1   thorpej 	if (error) {
    165   1.1   thorpej 		aprint_error("%s: unable to allocate reply area, error = %d\n",
    166   1.1   thorpej 		    mpt->sc_dev.dv_xname, error);
    167   1.1   thorpej 		goto fail_0;
    168   1.1   thorpej 	}
    169   1.1   thorpej 
    170   1.1   thorpej 	error = bus_dmamem_map(mpt->sc_dmat, &reply_seg, reply_rseg, PAGE_SIZE,
    171  1.11  christos 	    (void **) &mpt->reply, BUS_DMA_COHERENT/*XXX*/);
    172   1.1   thorpej 	if (error) {
    173   1.1   thorpej 		aprint_error("%s: unable to map reply area, error = %d\n",
    174   1.1   thorpej 		    mpt->sc_dev.dv_xname, error);
    175   1.1   thorpej 		goto fail_1;
    176   1.1   thorpej 	}
    177   1.1   thorpej 
    178   1.1   thorpej 	error = bus_dmamap_create(mpt->sc_dmat, PAGE_SIZE, 1, PAGE_SIZE,
    179   1.1   thorpej 	    0, 0, &mpt->reply_dmap);
    180   1.1   thorpej 	if (error) {
    181   1.1   thorpej 		aprint_error("%s: unable to create reply DMA map, error = %d\n",
    182   1.1   thorpej 		    mpt->sc_dev.dv_xname, error);
    183   1.1   thorpej 		goto fail_2;
    184   1.1   thorpej 	}
    185   1.1   thorpej 
    186   1.1   thorpej 	error = bus_dmamap_load(mpt->sc_dmat, mpt->reply_dmap, mpt->reply,
    187   1.1   thorpej 	    PAGE_SIZE, NULL, 0);
    188   1.1   thorpej 	if (error) {
    189   1.1   thorpej 		aprint_error("%s: unable to load reply DMA map, error = %d\n",
    190   1.1   thorpej 		    mpt->sc_dev.dv_xname, error);
    191   1.1   thorpej 		goto fail_3;
    192   1.1   thorpej 	}
    193   1.1   thorpej 	mpt->reply_phys = mpt->reply_dmap->dm_segs[0].ds_addr;
    194   1.1   thorpej 
    195   1.1   thorpej 	/*
    196   1.1   thorpej 	 * Allocate DMA resources for request buffers.
    197   1.1   thorpej 	 */
    198   1.1   thorpej 	error = bus_dmamem_alloc(mpt->sc_dmat, MPT_REQ_MEM_SIZE(mpt),
    199   1.1   thorpej 	    PAGE_SIZE, 0, &request_seg, 1, &request_rseg, 0);
    200   1.1   thorpej 	if (error) {
    201   1.1   thorpej 		aprint_error("%s: unable to allocate request area, "
    202   1.1   thorpej 		    "error = %d\n", mpt->sc_dev.dv_xname, error);
    203   1.1   thorpej 		goto fail_4;
    204   1.1   thorpej 	}
    205   1.1   thorpej 
    206   1.1   thorpej 	error = bus_dmamem_map(mpt->sc_dmat, &request_seg, request_rseg,
    207  1.11  christos 	    MPT_REQ_MEM_SIZE(mpt), (void **) &mpt->request, 0);
    208   1.1   thorpej 	if (error) {
    209   1.1   thorpej 		aprint_error("%s: unable to map request area, error = %d\n",
    210   1.1   thorpej 		    mpt->sc_dev.dv_xname, error);
    211   1.1   thorpej 		goto fail_5;
    212   1.1   thorpej 	}
    213   1.1   thorpej 
    214   1.1   thorpej 	error = bus_dmamap_create(mpt->sc_dmat, MPT_REQ_MEM_SIZE(mpt), 1,
    215   1.1   thorpej 	    MPT_REQ_MEM_SIZE(mpt), 0, 0, &mpt->request_dmap);
    216   1.1   thorpej 	if (error) {
    217   1.1   thorpej 		aprint_error("%s: unable to create request DMA map, "
    218   1.1   thorpej 		    "error = %d\n", mpt->sc_dev.dv_xname, error);
    219   1.1   thorpej 		goto fail_6;
    220   1.1   thorpej 	}
    221   1.1   thorpej 
    222   1.1   thorpej 	error = bus_dmamap_load(mpt->sc_dmat, mpt->request_dmap, mpt->request,
    223   1.1   thorpej 	    MPT_REQ_MEM_SIZE(mpt), NULL, 0);
    224   1.1   thorpej 	if (error) {
    225   1.1   thorpej 		aprint_error("%s: unable to load request DMA map, error = %d\n",
    226   1.1   thorpej 		    mpt->sc_dev.dv_xname, error);
    227   1.1   thorpej 		goto fail_7;
    228   1.1   thorpej 	}
    229   1.1   thorpej 	mpt->request_phys = mpt->request_dmap->dm_segs[0].ds_addr;
    230   1.1   thorpej 
    231   1.1   thorpej 	pptr = mpt->request_phys;
    232  1.11  christos 	vptr = (void *) mpt->request;
    233   1.1   thorpej 	end = pptr + MPT_REQ_MEM_SIZE(mpt);
    234   1.1   thorpej 
    235   1.1   thorpej 	for (i = 0; pptr < end; i++) {
    236   1.1   thorpej 		request_t *req = &mpt->request_pool[i];
    237   1.1   thorpej 		req->index = i;
    238   1.1   thorpej 
    239   1.1   thorpej 		/* Store location of Request Data */
    240   1.1   thorpej 		req->req_pbuf = pptr;
    241   1.1   thorpej 		req->req_vbuf = vptr;
    242   1.1   thorpej 
    243   1.1   thorpej 		pptr += MPT_REQUEST_AREA;
    244   1.1   thorpej 		vptr += MPT_REQUEST_AREA;
    245   1.1   thorpej 
    246   1.1   thorpej 		req->sense_pbuf = (pptr - MPT_SENSE_SIZE);
    247   1.1   thorpej 		req->sense_vbuf = (vptr - MPT_SENSE_SIZE);
    248   1.1   thorpej 
    249   1.5       tls 		error = bus_dmamap_create(mpt->sc_dmat, MAXPHYS,
    250   1.5       tls 		    MPT_SGL_MAX, MAXPHYS, 0, 0, &req->dmap);
    251   1.1   thorpej 		if (error) {
    252   1.1   thorpej 			aprint_error("%s: unable to create req %d DMA map, "
    253   1.1   thorpej 			    "error = %d\n", mpt->sc_dev.dv_xname, i, error);
    254   1.1   thorpej 			goto fail_8;
    255   1.1   thorpej 		}
    256   1.1   thorpej 	}
    257   1.1   thorpej 
    258   1.1   thorpej 	return (0);
    259   1.1   thorpej 
    260   1.1   thorpej  fail_8:
    261   1.1   thorpej 	for (--i; i >= 0; i--) {
    262   1.1   thorpej 		request_t *req = &mpt->request_pool[i];
    263   1.3   thorpej 		if (req->dmap != NULL)
    264   1.3   thorpej 			bus_dmamap_destroy(mpt->sc_dmat, req->dmap);
    265   1.1   thorpej 	}
    266   1.1   thorpej 	bus_dmamap_unload(mpt->sc_dmat, mpt->request_dmap);
    267   1.1   thorpej  fail_7:
    268   1.1   thorpej 	bus_dmamap_destroy(mpt->sc_dmat, mpt->request_dmap);
    269   1.1   thorpej  fail_6:
    270  1.11  christos 	bus_dmamem_unmap(mpt->sc_dmat, (void *)mpt->request, PAGE_SIZE);
    271   1.1   thorpej  fail_5:
    272   1.1   thorpej 	bus_dmamem_free(mpt->sc_dmat, &request_seg, request_rseg);
    273   1.1   thorpej  fail_4:
    274   1.1   thorpej 	bus_dmamap_unload(mpt->sc_dmat, mpt->reply_dmap);
    275   1.1   thorpej  fail_3:
    276   1.1   thorpej 	bus_dmamap_destroy(mpt->sc_dmat, mpt->reply_dmap);
    277   1.1   thorpej  fail_2:
    278  1.11  christos 	bus_dmamem_unmap(mpt->sc_dmat, (void *)mpt->reply, PAGE_SIZE);
    279   1.1   thorpej  fail_1:
    280   1.1   thorpej 	bus_dmamem_free(mpt->sc_dmat, &reply_seg, reply_rseg);
    281   1.1   thorpej  fail_0:
    282   1.1   thorpej 	free(mpt->request_pool, M_DEVBUF);
    283   1.1   thorpej 
    284   1.1   thorpej 	mpt->reply = NULL;
    285   1.1   thorpej 	mpt->request = NULL;
    286   1.1   thorpej 	mpt->request_pool = NULL;
    287   1.1   thorpej 
    288   1.1   thorpej 	return (error);
    289   1.1   thorpej }
    290   1.1   thorpej 
    291   1.1   thorpej int
    292   1.1   thorpej mpt_intr(void *arg)
    293   1.1   thorpej {
    294   1.1   thorpej 	mpt_softc_t *mpt = arg;
    295   1.1   thorpej 	int nrepl = 0;
    296   1.1   thorpej 	uint32_t reply;
    297   1.1   thorpej 
    298   1.1   thorpej 	if ((mpt_read(mpt, MPT_OFFSET_INTR_STATUS) & MPT_INTR_REPLY_READY) == 0)
    299   1.1   thorpej 		return (0);
    300   1.1   thorpej 
    301   1.1   thorpej 	reply = mpt_pop_reply_queue(mpt);
    302   1.1   thorpej 	while (reply != MPT_REPLY_EMPTY) {
    303   1.1   thorpej 		nrepl++;
    304   1.1   thorpej 		if (mpt->verbose > 1) {
    305   1.1   thorpej 			if ((reply & MPT_CONTEXT_REPLY) != 0) {
    306   1.1   thorpej 				/* Address reply; IOC has something to say */
    307   1.1   thorpej 				mpt_print_reply(MPT_REPLY_PTOV(mpt, reply));
    308   1.1   thorpej 			} else {
    309   1.1   thorpej 				/* Context reply; all went well */
    310   1.1   thorpej 				mpt_prt(mpt, "context %u reply OK", reply);
    311   1.1   thorpej 			}
    312   1.1   thorpej 		}
    313   1.1   thorpej 		mpt_done(mpt, reply);
    314   1.1   thorpej 		reply = mpt_pop_reply_queue(mpt);
    315   1.1   thorpej 	}
    316   1.1   thorpej 	return (nrepl != 0);
    317   1.1   thorpej }
    318   1.1   thorpej 
    319   1.1   thorpej void
    320   1.1   thorpej mpt_prt(mpt_softc_t *mpt, const char *fmt, ...)
    321   1.1   thorpej {
    322   1.1   thorpej 	va_list ap;
    323   1.1   thorpej 
    324   1.1   thorpej 	printf("%s: ", mpt->sc_dev.dv_xname);
    325   1.1   thorpej 	va_start(ap, fmt);
    326   1.1   thorpej 	vprintf(fmt, ap);
    327   1.1   thorpej 	va_end(ap);
    328   1.1   thorpej 	printf("\n");
    329   1.1   thorpej }
    330   1.1   thorpej 
    331   1.1   thorpej static int
    332   1.1   thorpej mpt_poll(mpt_softc_t *mpt, struct scsipi_xfer *xs, int count)
    333   1.1   thorpej {
    334   1.1   thorpej 
    335   1.1   thorpej 	/* Timeouts are in msec, so we loop in 1000usec cycles */
    336   1.1   thorpej 	while (count) {
    337   1.1   thorpej 		mpt_intr(mpt);
    338   1.1   thorpej 		if (xs->xs_status & XS_STS_DONE)
    339   1.1   thorpej 			return (0);
    340   1.1   thorpej 		delay(1000);		/* only happens in boot, so ok */
    341   1.1   thorpej 		count--;
    342   1.1   thorpej 	}
    343   1.1   thorpej 	return (1);
    344   1.1   thorpej }
    345   1.1   thorpej 
    346   1.1   thorpej static void
    347   1.1   thorpej mpt_timeout(void *arg)
    348   1.1   thorpej {
    349   1.1   thorpej 	request_t *req = arg;
    350   1.1   thorpej 	struct scsipi_xfer *xs = req->xfer;
    351   1.1   thorpej 	struct scsipi_periph *periph = xs->xs_periph;
    352   1.9     perry 	mpt_softc_t *mpt =
    353   1.1   thorpej 	    (void *) periph->periph_channel->chan_adapter->adapt_dev;
    354   1.1   thorpej 	uint32_t oseq;
    355   1.1   thorpej 	int s;
    356   1.1   thorpej 
    357   1.1   thorpej 	scsipi_printaddr(periph);
    358   1.1   thorpej 	printf("command timeout\n");
    359   1.1   thorpej 
    360   1.1   thorpej 	s = splbio();
    361   1.1   thorpej 
    362   1.1   thorpej 	oseq = req->sequence;
    363   1.1   thorpej 	mpt->timeouts++;
    364   1.1   thorpej 	if (mpt_intr(mpt)) {
    365   1.1   thorpej 		if (req->sequence != oseq) {
    366   1.1   thorpej 			mpt_prt(mpt, "recovered from command timeout");
    367   1.1   thorpej 			splx(s);
    368   1.1   thorpej 			return;
    369   1.1   thorpej 		}
    370   1.1   thorpej 	}
    371   1.1   thorpej 	mpt_prt(mpt,
    372   1.1   thorpej 	    "timeout on request index = 0x%x, seq = 0x%08x",
    373   1.1   thorpej 	    req->index, req->sequence);
    374   1.1   thorpej 	mpt_check_doorbell(mpt);
    375   1.1   thorpej 	mpt_prt(mpt, "Status 0x%08x, Mask 0x%08x, Doorbell 0x%08x",
    376   1.1   thorpej 	    mpt_read(mpt, MPT_OFFSET_INTR_STATUS),
    377   1.1   thorpej 	    mpt_read(mpt, MPT_OFFSET_INTR_MASK),
    378   1.1   thorpej 	    mpt_read(mpt, MPT_OFFSET_DOORBELL));
    379   1.1   thorpej 	mpt_prt(mpt, "request state: %s", mpt_req_state(req->debug));
    380   1.1   thorpej 	if (mpt->verbose > 1)
    381   1.1   thorpej 		mpt_print_scsi_io_request((MSG_SCSI_IO_REQUEST *)req->req_vbuf);
    382   1.1   thorpej 
    383   1.1   thorpej 	/* XXX WHAT IF THE IOC IS STILL USING IT?? */
    384   1.1   thorpej 	req->xfer = NULL;
    385   1.1   thorpej 	mpt_free_request(mpt, req);
    386   1.1   thorpej 
    387   1.6   thorpej 	xs->error = XS_TIMEOUT;
    388   1.6   thorpej 	scsipi_done(xs);
    389   1.6   thorpej 
    390   1.1   thorpej 	splx(s);
    391   1.1   thorpej }
    392   1.1   thorpej 
    393   1.1   thorpej static void
    394   1.1   thorpej mpt_done(mpt_softc_t *mpt, uint32_t reply)
    395   1.1   thorpej {
    396   1.6   thorpej 	struct scsipi_xfer *xs = NULL;
    397   1.1   thorpej 	struct scsipi_periph *periph;
    398   1.1   thorpej 	int index;
    399   1.1   thorpej 	request_t *req;
    400   1.1   thorpej 	MSG_REQUEST_HEADER *mpt_req;
    401   1.1   thorpej 	MSG_SCSI_IO_REPLY *mpt_reply;
    402   1.1   thorpej 
    403   1.1   thorpej 	if (__predict_true((reply & MPT_CONTEXT_REPLY) == 0)) {
    404   1.1   thorpej 		/* context reply (ok) */
    405   1.1   thorpej 		mpt_reply = NULL;
    406   1.1   thorpej 		index = reply & MPT_CONTEXT_MASK;
    407   1.1   thorpej 	} else {
    408   1.1   thorpej 		/* address reply (error) */
    409   1.1   thorpej 
    410   1.1   thorpej 		/* XXX BUS_DMASYNC_POSTREAD XXX */
    411   1.1   thorpej 		mpt_reply = MPT_REPLY_PTOV(mpt, reply);
    412   1.1   thorpej 		if (mpt->verbose > 1) {
    413   1.1   thorpej 			uint32_t *pReply = (uint32_t *) mpt_reply;
    414   1.9     perry 
    415   1.1   thorpej 			mpt_prt(mpt, "Address Reply (index %u):",
    416   1.1   thorpej 			    mpt_reply->MsgContext & 0xffff);
    417   1.1   thorpej 			mpt_prt(mpt, "%08x %08x %08x %08x",
    418   1.1   thorpej 			    pReply[0], pReply[1], pReply[2], pReply[3]);
    419   1.1   thorpej 			mpt_prt(mpt, "%08x %08x %08x %08x",
    420   1.1   thorpej 			    pReply[4], pReply[5], pReply[6], pReply[7]);
    421   1.1   thorpej 			mpt_prt(mpt, "%08x %08x %08x %08x",
    422   1.1   thorpej 			    pReply[8], pReply[9], pReply[10], pReply[11]);
    423   1.1   thorpej 		}
    424   1.1   thorpej 		index = mpt_reply->MsgContext;
    425   1.1   thorpej 	}
    426   1.1   thorpej 
    427   1.1   thorpej 	/*
    428   1.1   thorpej 	 * Address reply with MessageContext high bit set.
    429   1.1   thorpej 	 * This is most likely a notify message, so we try
    430   1.1   thorpej 	 * to process it, then free it.
    431   1.1   thorpej 	 */
    432   1.1   thorpej 	if (__predict_false((index & 0x80000000) != 0)) {
    433   1.1   thorpej 		if (mpt_reply != NULL)
    434   1.1   thorpej 			mpt_ctlop(mpt, mpt_reply, reply);
    435   1.1   thorpej 		else
    436   1.1   thorpej 			mpt_prt(mpt, "mpt_done: index 0x%x, NULL reply", index);
    437   1.1   thorpej 		return;
    438   1.1   thorpej 	}
    439   1.1   thorpej 
    440   1.1   thorpej 	/* Did we end up with a valid index into the table? */
    441   1.1   thorpej 	if (__predict_false(index < 0 || index >= MPT_MAX_REQUESTS(mpt))) {
    442   1.1   thorpej 		mpt_prt(mpt, "mpt_done: invalid index (0x%x) in reply", index);
    443   1.1   thorpej 		return;
    444   1.1   thorpej 	}
    445   1.1   thorpej 
    446   1.1   thorpej 	req = &mpt->request_pool[index];
    447   1.1   thorpej 
    448   1.1   thorpej 	/* Make sure memory hasn't been trashed. */
    449   1.1   thorpej 	if (__predict_false(req->index != index)) {
    450   1.1   thorpej 		mpt_prt(mpt, "mpt_done: corrupted request_t (0x%x)", index);
    451   1.1   thorpej 		return;
    452   1.1   thorpej 	}
    453   1.1   thorpej 
    454   1.2   thorpej 	MPT_SYNC_REQ(mpt, req, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
    455   1.1   thorpej 	mpt_req = req->req_vbuf;
    456   1.1   thorpej 
    457   1.1   thorpej 	/* Short cut for task management replies; nothing more for us to do. */
    458   1.1   thorpej 	if (__predict_false(mpt_req->Function == MPI_FUNCTION_SCSI_TASK_MGMT)) {
    459   1.1   thorpej 		if (mpt->verbose > 1)
    460   1.1   thorpej 			mpt_prt(mpt, "mpt_done: TASK MGMT");
    461   1.1   thorpej 		goto done;
    462   1.1   thorpej 	}
    463   1.1   thorpej 
    464   1.1   thorpej 	if (__predict_false(mpt_req->Function == MPI_FUNCTION_PORT_ENABLE))
    465   1.1   thorpej 		goto done;
    466   1.1   thorpej 
    467   1.1   thorpej 	/*
    468   1.1   thorpej 	 * At this point, it had better be a SCSI I/O command, but don't
    469   1.1   thorpej 	 * crash if it isn't.
    470   1.1   thorpej 	 */
    471   1.1   thorpej 	if (__predict_false(mpt_req->Function !=
    472   1.1   thorpej 			    MPI_FUNCTION_SCSI_IO_REQUEST)) {
    473   1.1   thorpej 		if (mpt->verbose > 1)
    474   1.1   thorpej 			mpt_prt(mpt, "mpt_done: unknown Function 0x%x (0x%x)",
    475   1.1   thorpej 			    mpt_req->Function, index);
    476   1.1   thorpej 		goto done;
    477   1.1   thorpej 	}
    478   1.1   thorpej 
    479   1.1   thorpej 	/* Recover scsipi_xfer from the request structure. */
    480   1.1   thorpej 	xs = req->xfer;
    481   1.1   thorpej 
    482   1.1   thorpej 	/* Can't have a SCSI command without a scsipi_xfer. */
    483   1.1   thorpej 	if (__predict_false(xs == NULL)) {
    484   1.1   thorpej 		mpt_prt(mpt,
    485   1.1   thorpej 		    "mpt_done: no scsipi_xfer, index = 0x%x, seq = 0x%08x",
    486   1.1   thorpej 		    req->index, req->sequence);
    487   1.1   thorpej 		mpt_prt(mpt, "request state: %s", mpt_req_state(req->debug));
    488   1.1   thorpej 		mpt_prt(mpt, "mpt_request:");
    489   1.1   thorpej 		mpt_print_scsi_io_request((MSG_SCSI_IO_REQUEST *)req->req_vbuf);
    490   1.1   thorpej 
    491   1.1   thorpej 		if (mpt_reply != NULL) {
    492   1.1   thorpej 			mpt_prt(mpt, "mpt_reply:");
    493   1.1   thorpej 			mpt_print_reply(mpt_reply);
    494   1.1   thorpej 		} else {
    495   1.1   thorpej 			mpt_prt(mpt, "context reply: 0x%08x", reply);
    496   1.1   thorpej 		}
    497   1.1   thorpej 		goto done;
    498   1.1   thorpej 	}
    499   1.1   thorpej 
    500   1.1   thorpej 	callout_stop(&xs->xs_callout);
    501   1.1   thorpej 
    502   1.1   thorpej 	periph = xs->xs_periph;
    503   1.1   thorpej 
    504   1.1   thorpej 	/*
    505   1.1   thorpej 	 * If we were a data transfer, unload the map that described
    506   1.1   thorpej 	 * the data buffer.
    507   1.1   thorpej 	 */
    508   1.1   thorpej 	if (__predict_true(xs->datalen != 0)) {
    509   1.1   thorpej 		bus_dmamap_sync(mpt->sc_dmat, req->dmap, 0,
    510   1.1   thorpej 		    req->dmap->dm_mapsize,
    511   1.1   thorpej 		    (xs->xs_control & XS_CTL_DATA_IN) ? BUS_DMASYNC_POSTREAD
    512   1.1   thorpej 						      : BUS_DMASYNC_POSTWRITE);
    513   1.1   thorpej 		bus_dmamap_unload(mpt->sc_dmat, req->dmap);
    514   1.1   thorpej 	}
    515   1.1   thorpej 
    516   1.1   thorpej 	if (__predict_true(mpt_reply == NULL)) {
    517   1.1   thorpej 		/*
    518   1.1   thorpej 		 * Context reply; report that the command was
    519   1.1   thorpej 		 * successful!
    520   1.1   thorpej 		 *
    521   1.1   thorpej 		 * Also report the xfer mode, if necessary.
    522   1.1   thorpej 		 */
    523   1.1   thorpej 		if (__predict_false(mpt->mpt_report_xfer_mode != 0)) {
    524   1.1   thorpej 			if ((mpt->mpt_report_xfer_mode &
    525   1.1   thorpej 			     (1 << periph->periph_target)) != 0)
    526   1.1   thorpej 				mpt_get_xfer_mode(mpt, periph);
    527   1.1   thorpej 		}
    528   1.1   thorpej 		xs->error = XS_NOERROR;
    529   1.1   thorpej 		xs->status = SCSI_OK;
    530   1.1   thorpej 		xs->resid = 0;
    531   1.6   thorpej 		mpt_free_request(mpt, req);
    532   1.1   thorpej 		scsipi_done(xs);
    533   1.6   thorpej 		return;
    534   1.1   thorpej 	}
    535   1.1   thorpej 
    536   1.1   thorpej 	xs->status = mpt_reply->SCSIStatus;
    537   1.1   thorpej 	switch (mpt_reply->IOCStatus) {
    538   1.1   thorpej 	case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
    539   1.1   thorpej 		xs->error = XS_DRIVER_STUFFUP;
    540   1.1   thorpej 		break;
    541   1.1   thorpej 
    542   1.1   thorpej 	case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
    543   1.1   thorpej 		/*
    544   1.1   thorpej 		 * Yikes!  Tagged queue full comes through this path!
    545   1.1   thorpej 		 *
    546   1.1   thorpej 		 * So we'll change it to a status error and anything
    547   1.1   thorpej 		 * that returns status should probably be a status
    548   1.1   thorpej 		 * error as well.
    549   1.1   thorpej 		 */
    550   1.1   thorpej 		xs->resid = xs->datalen - mpt_reply->TransferCount;
    551   1.1   thorpej 		if (mpt_reply->SCSIState &
    552   1.1   thorpej 		    MPI_SCSI_STATE_NO_SCSI_STATUS) {
    553   1.1   thorpej 			xs->error = XS_DRIVER_STUFFUP;
    554   1.1   thorpej 			break;
    555   1.1   thorpej 		}
    556   1.1   thorpej 		/* FALLTHROUGH */
    557   1.1   thorpej 	case MPI_IOCSTATUS_SUCCESS:
    558   1.1   thorpej 	case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:
    559   1.1   thorpej 		switch (xs->status) {
    560   1.1   thorpej 		case SCSI_OK:
    561   1.1   thorpej 			/* Report the xfer mode, if necessary. */
    562   1.1   thorpej 			if ((mpt->mpt_report_xfer_mode &
    563   1.1   thorpej 			     (1 << periph->periph_target)) != 0)
    564   1.1   thorpej 				mpt_get_xfer_mode(mpt, periph);
    565   1.1   thorpej 			xs->resid = 0;
    566   1.1   thorpej 			break;
    567   1.1   thorpej 
    568   1.1   thorpej 		case SCSI_CHECK:
    569   1.1   thorpej 			xs->error = XS_SENSE;
    570   1.1   thorpej 			break;
    571   1.1   thorpej 
    572   1.1   thorpej 		case SCSI_BUSY:
    573   1.1   thorpej 		case SCSI_QUEUE_FULL:
    574   1.1   thorpej 			xs->error = XS_BUSY;
    575   1.1   thorpej 			break;
    576   1.1   thorpej 
    577   1.1   thorpej 		default:
    578   1.1   thorpej 			scsipi_printaddr(periph);
    579   1.1   thorpej 			printf("invalid status code %d\n", xs->status);
    580   1.1   thorpej 			xs->error = XS_DRIVER_STUFFUP;
    581   1.1   thorpej 			break;
    582   1.1   thorpej 		}
    583   1.1   thorpej 		break;
    584   1.1   thorpej 
    585   1.1   thorpej 	case MPI_IOCSTATUS_BUSY:
    586   1.1   thorpej 	case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
    587   1.1   thorpej 		xs->error = XS_RESOURCE_SHORTAGE;
    588   1.1   thorpej 		break;
    589   1.1   thorpej 
    590   1.1   thorpej 	case MPI_IOCSTATUS_SCSI_INVALID_BUS:
    591   1.1   thorpej 	case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
    592   1.1   thorpej 	case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
    593   1.1   thorpej 		xs->error = XS_SELTIMEOUT;
    594   1.1   thorpej 		break;
    595   1.1   thorpej 
    596   1.1   thorpej 	case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
    597   1.1   thorpej 		xs->error = XS_DRIVER_STUFFUP;
    598   1.1   thorpej 		break;
    599   1.1   thorpej 
    600   1.1   thorpej 	case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
    601   1.1   thorpej 		/* XXX What should we do here? */
    602   1.1   thorpej 		break;
    603   1.1   thorpej 
    604   1.1   thorpej 	case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
    605   1.1   thorpej 		/* XXX */
    606   1.1   thorpej 		xs->error = XS_DRIVER_STUFFUP;
    607   1.1   thorpej 		break;
    608   1.1   thorpej 
    609   1.1   thorpej 	case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
    610   1.1   thorpej 		/* XXX */
    611   1.1   thorpej 		xs->error = XS_DRIVER_STUFFUP;
    612   1.1   thorpej 		break;
    613   1.1   thorpej 
    614   1.1   thorpej 	case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
    615   1.1   thorpej 		/* XXX This is a bus-reset */
    616   1.1   thorpej 		xs->error = XS_DRIVER_STUFFUP;
    617   1.1   thorpej 		break;
    618   1.1   thorpej 
    619   1.1   thorpej 	default:
    620   1.1   thorpej 		/* XXX unrecognized HBA error */
    621   1.1   thorpej 		xs->error = XS_DRIVER_STUFFUP;
    622   1.1   thorpej 		break;
    623   1.1   thorpej 	}
    624   1.9     perry 
    625   1.1   thorpej 	if (mpt_reply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
    626   1.1   thorpej 		memcpy(&xs->sense.scsi_sense, req->sense_vbuf,
    627   1.1   thorpej 		    sizeof(xs->sense.scsi_sense));
    628   1.1   thorpej 	} else if (mpt_reply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
    629   1.1   thorpej 		/*
    630   1.1   thorpej 		 * This will cause the scsipi layer to issue
    631   1.1   thorpej 		 * a REQUEST SENSE.
    632   1.1   thorpej 		 */
    633   1.1   thorpej 		if (xs->status == SCSI_CHECK)
    634   1.1   thorpej 			xs->error = XS_BUSY;
    635   1.1   thorpej 	}
    636   1.1   thorpej 
    637   1.1   thorpej  done:
    638   1.1   thorpej 	/* If IOC done with this requeset, free it up. */
    639   1.1   thorpej 	if (mpt_reply == NULL || (mpt_reply->MsgFlags & 0x80) == 0)
    640   1.1   thorpej 		mpt_free_request(mpt, req);
    641   1.1   thorpej 
    642   1.1   thorpej 	/* If address reply, give the buffer back to the IOC. */
    643   1.1   thorpej 	if (mpt_reply != NULL)
    644   1.1   thorpej 		mpt_free_reply(mpt, (reply << 1));
    645   1.6   thorpej 
    646   1.6   thorpej 	if (xs != NULL)
    647   1.6   thorpej 		scsipi_done(xs);
    648   1.1   thorpej }
    649   1.1   thorpej 
    650   1.1   thorpej static void
    651   1.1   thorpej mpt_run_xfer(mpt_softc_t *mpt, struct scsipi_xfer *xs)
    652   1.1   thorpej {
    653   1.1   thorpej 	struct scsipi_periph *periph = xs->xs_periph;
    654   1.1   thorpej 	request_t *req;
    655   1.1   thorpej 	MSG_SCSI_IO_REQUEST *mpt_req;
    656   1.1   thorpej 	int error, s;
    657   1.1   thorpej 
    658   1.1   thorpej 	s = splbio();
    659   1.1   thorpej 	req = mpt_get_request(mpt);
    660   1.1   thorpej 	if (__predict_false(req == NULL)) {
    661   1.1   thorpej 		/* This should happen very infrequently. */
    662   1.1   thorpej 		xs->error = XS_RESOURCE_SHORTAGE;
    663   1.1   thorpej 		scsipi_done(xs);
    664   1.1   thorpej 		splx(s);
    665   1.1   thorpej 		return;
    666   1.1   thorpej 	}
    667   1.1   thorpej 	splx(s);
    668   1.1   thorpej 
    669   1.1   thorpej 	/* Link the req and the scsipi_xfer. */
    670   1.1   thorpej 	req->xfer = xs;
    671   1.1   thorpej 
    672   1.1   thorpej 	/* Now we build the command for the IOC */
    673   1.1   thorpej 	mpt_req = req->req_vbuf;
    674   1.1   thorpej 	memset(mpt_req, 0, sizeof(*mpt_req));
    675   1.1   thorpej 
    676   1.1   thorpej 	mpt_req->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
    677   1.1   thorpej 	mpt_req->Bus = mpt->bus;
    678   1.1   thorpej 
    679   1.1   thorpej 	mpt_req->SenseBufferLength =
    680   1.1   thorpej 	    (sizeof(xs->sense.scsi_sense) < MPT_SENSE_SIZE) ?
    681   1.1   thorpej 	    sizeof(xs->sense.scsi_sense) : MPT_SENSE_SIZE;
    682   1.1   thorpej 
    683   1.1   thorpej 	/*
    684   1.1   thorpej 	 * We use the message context to find the request structure when
    685   1.1   thorpej 	 * we get the command completion interrupt from the IOC.
    686   1.1   thorpej 	 */
    687   1.1   thorpej 	mpt_req->MsgContext = req->index;
    688   1.1   thorpej 
    689   1.1   thorpej 	/* Which physical device to do the I/O on. */
    690   1.1   thorpej 	mpt_req->TargetID = periph->periph_target;
    691   1.1   thorpej 	mpt_req->LUN[1] = periph->periph_lun;
    692   1.1   thorpej 
    693   1.1   thorpej 	/* Set the direction of the transfer. */
    694   1.1   thorpej 	if (xs->xs_control & XS_CTL_DATA_IN)
    695   1.1   thorpej 		mpt_req->Control = MPI_SCSIIO_CONTROL_READ;
    696   1.1   thorpej 	else if (xs->xs_control & XS_CTL_DATA_OUT)
    697   1.1   thorpej 		mpt_req->Control = MPI_SCSIIO_CONTROL_WRITE;
    698   1.1   thorpej 	else
    699   1.1   thorpej 		mpt_req->Control = MPI_SCSIIO_CONTROL_NODATATRANSFER;
    700   1.1   thorpej 
    701   1.1   thorpej 	/* Set the queue behavior. */
    702  1.12      tron 	if (__predict_true((!mpt->is_scsi) ||
    703   1.1   thorpej 			   (mpt->mpt_tag_enable &
    704   1.1   thorpej 			    (1 << periph->periph_target)))) {
    705   1.1   thorpej 		switch (XS_CTL_TAGTYPE(xs)) {
    706   1.1   thorpej 		case XS_CTL_HEAD_TAG:
    707   1.1   thorpej 			mpt_req->Control |= MPI_SCSIIO_CONTROL_HEADOFQ;
    708   1.1   thorpej 			break;
    709   1.1   thorpej 
    710   1.1   thorpej #if 0	/* XXX */
    711   1.1   thorpej 		case XS_CTL_ACA_TAG:
    712   1.1   thorpej 			mpt_req->Control |= MPI_SCSIIO_CONTROL_ACAQ;
    713   1.1   thorpej 			break;
    714   1.1   thorpej #endif
    715   1.1   thorpej 
    716   1.1   thorpej 		case XS_CTL_ORDERED_TAG:
    717   1.1   thorpej 			mpt_req->Control |= MPI_SCSIIO_CONTROL_ORDEREDQ;
    718   1.1   thorpej 			break;
    719   1.1   thorpej 
    720   1.1   thorpej 		case XS_CTL_SIMPLE_TAG:
    721   1.1   thorpej 			mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
    722   1.1   thorpej 			break;
    723   1.1   thorpej 
    724   1.1   thorpej 		default:
    725  1.12      tron 			if (mpt->is_scsi)
    726  1.12      tron 				mpt_req->Control |= MPI_SCSIIO_CONTROL_UNTAGGED;
    727  1.12      tron 			else
    728   1.1   thorpej 				mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
    729   1.1   thorpej 			break;
    730   1.1   thorpej 		}
    731   1.1   thorpej 	} else
    732   1.1   thorpej 		mpt_req->Control |= MPI_SCSIIO_CONTROL_UNTAGGED;
    733   1.1   thorpej 
    734  1.12      tron 	if (__predict_false(mpt->is_scsi &&
    735   1.1   thorpej 			    (mpt->mpt_disc_enable &
    736   1.1   thorpej 			     (1 << periph->periph_target)) == 0))
    737   1.1   thorpej 		mpt_req->Control |= MPI_SCSIIO_CONTROL_NO_DISCONNECT;
    738   1.1   thorpej 
    739   1.1   thorpej 	/* Copy the SCSI command block into place. */
    740   1.1   thorpej 	memcpy(mpt_req->CDB, xs->cmd, xs->cmdlen);
    741   1.1   thorpej 
    742   1.1   thorpej 	mpt_req->CDBLength = xs->cmdlen;
    743   1.1   thorpej 	mpt_req->DataLength = xs->datalen;
    744   1.1   thorpej 	mpt_req->SenseBufferLowAddr = req->sense_pbuf;
    745   1.1   thorpej 
    746   1.1   thorpej 	/*
    747   1.1   thorpej 	 * Map the DMA transfer.
    748   1.1   thorpej 	 */
    749   1.1   thorpej 	if (xs->datalen) {
    750   1.1   thorpej 		SGE_SIMPLE32 *se;
    751   1.1   thorpej 
    752   1.1   thorpej 		error = bus_dmamap_load(mpt->sc_dmat, req->dmap, xs->data,
    753   1.1   thorpej 		    xs->datalen, NULL,
    754   1.1   thorpej 		    ((xs->xs_control & XS_CTL_NOSLEEP) ? BUS_DMA_NOWAIT
    755   1.1   thorpej 						       : BUS_DMA_WAITOK) |
    756   1.1   thorpej 		    BUS_DMA_STREAMING |
    757   1.1   thorpej 		    ((xs->xs_control & XS_CTL_DATA_IN) ? BUS_DMA_READ
    758   1.1   thorpej 						       : BUS_DMA_WRITE));
    759   1.1   thorpej 		switch (error) {
    760   1.1   thorpej 		case 0:
    761   1.1   thorpej 			break;
    762   1.1   thorpej 
    763   1.1   thorpej 		case ENOMEM:
    764   1.1   thorpej 		case EAGAIN:
    765   1.1   thorpej 			xs->error = XS_RESOURCE_SHORTAGE;
    766   1.1   thorpej 			goto out_bad;
    767   1.1   thorpej 
    768   1.1   thorpej 		default:
    769   1.1   thorpej 			xs->error = XS_DRIVER_STUFFUP;
    770   1.1   thorpej 			mpt_prt(mpt, "error %d loading DMA map", error);
    771   1.1   thorpej  out_bad:
    772   1.1   thorpej 			s = splbio();
    773   1.1   thorpej 			mpt_free_request(mpt, req);
    774   1.1   thorpej 			scsipi_done(xs);
    775   1.1   thorpej 			splx(s);
    776   1.1   thorpej 			return;
    777   1.1   thorpej 		}
    778   1.1   thorpej 
    779   1.1   thorpej 		if (req->dmap->dm_nsegs > MPT_NSGL_FIRST(mpt)) {
    780   1.1   thorpej 			int seg, i, nleft = req->dmap->dm_nsegs;
    781   1.1   thorpej 			uint32_t flags;
    782   1.1   thorpej 			SGE_CHAIN32 *ce;
    783   1.1   thorpej 
    784   1.1   thorpej 			seg = 0;
    785   1.1   thorpej 
    786   1.1   thorpej 			mpt_req->DataLength = xs->datalen;
    787   1.1   thorpej 			flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
    788   1.1   thorpej 			if (xs->xs_control & XS_CTL_DATA_OUT)
    789   1.1   thorpej 				flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
    790   1.1   thorpej 
    791   1.1   thorpej 			se = (SGE_SIMPLE32 *) &mpt_req->SGL;
    792   1.1   thorpej 			for (i = 0; i < MPT_NSGL_FIRST(mpt) - 1;
    793   1.1   thorpej 			     i++, se++, seg++) {
    794   1.1   thorpej 				uint32_t tf;
    795   1.1   thorpej 
    796   1.1   thorpej 				memset(se, 0, sizeof(*se));
    797   1.1   thorpej 				se->Address = req->dmap->dm_segs[seg].ds_addr;
    798   1.1   thorpej 				MPI_pSGE_SET_LENGTH(se,
    799   1.1   thorpej 				    req->dmap->dm_segs[seg].ds_len);
    800   1.1   thorpej 				tf = flags;
    801   1.1   thorpej 				if (i == MPT_NSGL_FIRST(mpt) - 2)
    802   1.1   thorpej 					tf |= MPI_SGE_FLAGS_LAST_ELEMENT;
    803   1.1   thorpej 				MPI_pSGE_SET_FLAGS(se, tf);
    804   1.1   thorpej 				nleft--;
    805   1.1   thorpej 			}
    806   1.1   thorpej 
    807   1.1   thorpej 			/*
    808   1.1   thorpej 			 * Tell the IOC where to find the first chain element.
    809   1.1   thorpej 			 */
    810   1.1   thorpej 			mpt_req->ChainOffset =
    811   1.1   thorpej 			    ((char *)se - (char *)mpt_req) >> 2;
    812   1.1   thorpej 
    813   1.1   thorpej 			/*
    814   1.1   thorpej 			 * Until we're finished with all segments...
    815   1.1   thorpej 			 */
    816   1.1   thorpej 			while (nleft) {
    817   1.1   thorpej 				int ntodo;
    818   1.1   thorpej 
    819   1.1   thorpej 				/*
    820   1.1   thorpej 				 * Construct the chain element that points to
    821   1.1   thorpej 				 * the next segment.
    822   1.1   thorpej 				 */
    823   1.1   thorpej 				ce = (SGE_CHAIN32 *) se++;
    824   1.1   thorpej 				if (nleft > MPT_NSGL(mpt)) {
    825   1.1   thorpej 					ntodo = MPT_NSGL(mpt) - 1;
    826   1.1   thorpej 					ce->NextChainOffset = (MPT_RQSL(mpt) -
    827   1.1   thorpej 					    sizeof(SGE_SIMPLE32)) >> 2;
    828   1.8    briggs 					ce->Length = MPT_NSGL(mpt)
    829   1.8    briggs 						* sizeof(SGE_SIMPLE32);
    830   1.1   thorpej 				} else {
    831   1.1   thorpej 					ntodo = nleft;
    832   1.1   thorpej 					ce->NextChainOffset = 0;
    833   1.8    briggs 					ce->Length = ntodo
    834   1.8    briggs 						* sizeof(SGE_SIMPLE32);
    835   1.1   thorpej 				}
    836   1.1   thorpej 				ce->Address = req->req_pbuf +
    837   1.1   thorpej 				    ((char *)se - (char *)mpt_req);
    838   1.1   thorpej 				ce->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT;
    839   1.1   thorpej 				for (i = 0; i < ntodo; i++, se++, seg++) {
    840   1.1   thorpej 					uint32_t tf;
    841   1.1   thorpej 
    842   1.1   thorpej 					memset(se, 0, sizeof(*se));
    843   1.1   thorpej 					se->Address =
    844   1.1   thorpej 					    req->dmap->dm_segs[seg].ds_addr;
    845   1.1   thorpej 					MPI_pSGE_SET_LENGTH(se,
    846   1.1   thorpej 					    req->dmap->dm_segs[seg].ds_len);
    847   1.1   thorpej 					tf = flags;
    848   1.1   thorpej 					if (i == ntodo - 1) {
    849   1.1   thorpej 						tf |=
    850   1.1   thorpej 						    MPI_SGE_FLAGS_LAST_ELEMENT;
    851   1.1   thorpej 						if (ce->NextChainOffset == 0) {
    852   1.1   thorpej 							tf |=
    853   1.1   thorpej 						    MPI_SGE_FLAGS_END_OF_LIST |
    854   1.1   thorpej 						    MPI_SGE_FLAGS_END_OF_BUFFER;
    855   1.1   thorpej 						}
    856   1.1   thorpej 					}
    857   1.1   thorpej 					MPI_pSGE_SET_FLAGS(se, tf);
    858   1.1   thorpej 					nleft--;
    859   1.1   thorpej 				}
    860   1.1   thorpej 			}
    861   1.1   thorpej 			bus_dmamap_sync(mpt->sc_dmat, req->dmap, 0,
    862   1.1   thorpej 			    req->dmap->dm_mapsize,
    863   1.1   thorpej 			    (xs->xs_control & XS_CTL_DATA_IN) ?
    864   1.1   thorpej 			    				BUS_DMASYNC_PREREAD
    865   1.1   thorpej 						      : BUS_DMASYNC_PREWRITE);
    866   1.1   thorpej 		} else {
    867   1.1   thorpej 			int i;
    868   1.1   thorpej 			uint32_t flags;
    869   1.1   thorpej 
    870   1.1   thorpej 			mpt_req->DataLength = xs->datalen;
    871   1.1   thorpej 			flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
    872   1.1   thorpej 			if (xs->xs_control & XS_CTL_DATA_OUT)
    873   1.1   thorpej 				flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
    874   1.1   thorpej 
    875   1.1   thorpej 			/* Copy the segments into our SG list. */
    876   1.1   thorpej 			se = (SGE_SIMPLE32 *) &mpt_req->SGL;
    877   1.1   thorpej 			for (i = 0; i < req->dmap->dm_nsegs;
    878   1.1   thorpej 			     i++, se++) {
    879   1.1   thorpej 				uint32_t tf;
    880   1.1   thorpej 
    881   1.1   thorpej 				memset(se, 0, sizeof(*se));
    882   1.1   thorpej 				se->Address = req->dmap->dm_segs[i].ds_addr;
    883   1.1   thorpej 				MPI_pSGE_SET_LENGTH(se,
    884   1.1   thorpej 				    req->dmap->dm_segs[i].ds_len);
    885   1.1   thorpej 				tf = flags;
    886   1.1   thorpej 				if (i == req->dmap->dm_nsegs - 1) {
    887   1.1   thorpej 					tf |=
    888   1.1   thorpej 					    MPI_SGE_FLAGS_LAST_ELEMENT |
    889   1.1   thorpej 					    MPI_SGE_FLAGS_END_OF_BUFFER |
    890   1.1   thorpej 					    MPI_SGE_FLAGS_END_OF_LIST;
    891   1.1   thorpej 				}
    892   1.1   thorpej 				MPI_pSGE_SET_FLAGS(se, tf);
    893   1.1   thorpej 			}
    894   1.1   thorpej 			bus_dmamap_sync(mpt->sc_dmat, req->dmap, 0,
    895   1.1   thorpej 			    req->dmap->dm_mapsize,
    896   1.1   thorpej 			    (xs->xs_control & XS_CTL_DATA_IN) ?
    897   1.1   thorpej 			    				BUS_DMASYNC_PREREAD
    898   1.1   thorpej 						      : BUS_DMASYNC_PREWRITE);
    899   1.1   thorpej 		}
    900   1.1   thorpej 	} else {
    901   1.1   thorpej 		/*
    902   1.1   thorpej 		 * No data to transfer; just make a single simple SGL
    903   1.1   thorpej 		 * with zero length.
    904   1.1   thorpej 		 */
    905   1.1   thorpej 		SGE_SIMPLE32 *se = (SGE_SIMPLE32 *) &mpt_req->SGL;
    906   1.1   thorpej 		memset(se, 0, sizeof(*se));
    907   1.1   thorpej 		MPI_pSGE_SET_FLAGS(se,
    908   1.1   thorpej 		    (MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER |
    909   1.1   thorpej 		     MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_END_OF_LIST));
    910   1.1   thorpej 	}
    911   1.1   thorpej 
    912   1.1   thorpej 	if (mpt->verbose > 1)
    913   1.1   thorpej 		mpt_print_scsi_io_request(mpt_req);
    914   1.1   thorpej 
    915   1.1   thorpej 	s = splbio();
    916   1.1   thorpej 	if (__predict_true((xs->xs_control & XS_CTL_POLL) == 0))
    917   1.1   thorpej 		callout_reset(&xs->xs_callout,
    918   1.1   thorpej 		    mstohz(xs->timeout), mpt_timeout, req);
    919   1.1   thorpej 	mpt_send_cmd(mpt, req);
    920   1.1   thorpej 	splx(s);
    921   1.1   thorpej 
    922   1.1   thorpej 	if (__predict_true((xs->xs_control & XS_CTL_POLL) == 0))
    923   1.1   thorpej 		return;
    924   1.1   thorpej 
    925   1.1   thorpej 	/*
    926   1.1   thorpej 	 * If we can't use interrupts, poll on completion.
    927   1.1   thorpej 	 */
    928   1.4   thorpej 	if (mpt_poll(mpt, xs, xs->timeout))
    929   1.1   thorpej 		mpt_timeout(req);
    930   1.1   thorpej }
    931   1.1   thorpej 
    932   1.1   thorpej static void
    933   1.1   thorpej mpt_set_xfer_mode(mpt_softc_t *mpt, struct scsipi_xfer_mode *xm)
    934   1.1   thorpej {
    935   1.1   thorpej 	fCONFIG_PAGE_SCSI_DEVICE_1 tmp;
    936   1.1   thorpej 
    937  1.12      tron 	if (!mpt->is_scsi) {
    938   1.1   thorpej 		/*
    939   1.1   thorpej 		 * SCSI transport settings don't make any sense for
    940   1.1   thorpej 		 * Fibre Channel; silently ignore the request.
    941   1.1   thorpej 		 */
    942   1.1   thorpej 		return;
    943   1.1   thorpej 	}
    944   1.1   thorpej 
    945   1.1   thorpej 	/*
    946   1.1   thorpej 	 * Always allow disconnect; we don't have a way to disable
    947   1.1   thorpej 	 * it right now, in any case.
    948   1.1   thorpej 	 */
    949   1.1   thorpej 	mpt->mpt_disc_enable |= (1 << xm->xm_target);
    950   1.1   thorpej 
    951   1.1   thorpej 	if (xm->xm_mode & PERIPH_CAP_TQING)
    952   1.1   thorpej 		mpt->mpt_tag_enable |= (1 << xm->xm_target);
    953   1.1   thorpej 	else
    954   1.1   thorpej 		mpt->mpt_tag_enable &= ~(1 << xm->xm_target);
    955   1.1   thorpej 
    956   1.1   thorpej 	tmp = mpt->mpt_dev_page1[xm->xm_target];
    957   1.1   thorpej 
    958   1.1   thorpej 	/*
    959   1.1   thorpej 	 * Set the wide/narrow parameter for the target.
    960   1.1   thorpej 	 */
    961   1.1   thorpej 	if (xm->xm_mode & PERIPH_CAP_WIDE16)
    962   1.1   thorpej 		tmp.RequestedParameters |= MPI_SCSIDEVPAGE1_RP_WIDE;
    963   1.1   thorpej 	else
    964   1.1   thorpej 		tmp.RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_WIDE;
    965   1.1   thorpej 
    966   1.1   thorpej 	/*
    967   1.1   thorpej 	 * Set the synchronous parameters for the target.
    968   1.1   thorpej 	 *
    969   1.1   thorpej 	 * XXX If we request sync transfers, we just go ahead and
    970   1.1   thorpej 	 * XXX request the maximum available.  We need finer control
    971   1.1   thorpej 	 * XXX in order to implement Domain Validation.
    972   1.1   thorpej 	 */
    973   1.1   thorpej 	tmp.RequestedParameters &= ~(MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK |
    974   1.1   thorpej 	    MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK |
    975   1.1   thorpej 	    MPI_SCSIDEVPAGE1_RP_DT | MPI_SCSIDEVPAGE1_RP_QAS |
    976   1.1   thorpej 	    MPI_SCSIDEVPAGE1_RP_IU);
    977   1.1   thorpej 	if (xm->xm_mode & PERIPH_CAP_SYNC) {
    978   1.1   thorpej 		int factor, offset, np;
    979   1.1   thorpej 
    980   1.1   thorpej 		factor = (mpt->mpt_port_page0.Capabilities >> 8) & 0xff;
    981   1.1   thorpej 		offset = (mpt->mpt_port_page0.Capabilities >> 16) & 0xff;
    982   1.1   thorpej 		np = 0;
    983   1.1   thorpej 		if (factor < 0x9) {
    984   1.1   thorpej 			/* Ultra320 */
    985   1.1   thorpej 			np |= MPI_SCSIDEVPAGE1_RP_QAS | MPI_SCSIDEVPAGE1_RP_IU;
    986   1.1   thorpej 		}
    987   1.1   thorpej 		if (factor < 0xa) {
    988   1.1   thorpej 			/* at least Ultra160 */
    989   1.1   thorpej 			np |= MPI_SCSIDEVPAGE1_RP_DT;
    990   1.1   thorpej 		}
    991   1.1   thorpej 		np |= (factor << 8) | (offset << 16);
    992   1.1   thorpej 		tmp.RequestedParameters |= np;
    993   1.1   thorpej 	}
    994   1.1   thorpej 
    995   1.1   thorpej 	if (mpt_write_cfg_page(mpt, xm->xm_target, &tmp.Header)) {
    996   1.1   thorpej 		mpt_prt(mpt, "unable to write Device Page 1");
    997   1.1   thorpej 		return;
    998   1.1   thorpej 	}
    999   1.1   thorpej 
   1000   1.1   thorpej 	if (mpt_read_cfg_page(mpt, xm->xm_target, &tmp.Header)) {
   1001   1.1   thorpej 		mpt_prt(mpt, "unable to read back Device Page 1");
   1002   1.1   thorpej 		return;
   1003   1.1   thorpej 	}
   1004   1.1   thorpej 
   1005   1.1   thorpej 	mpt->mpt_dev_page1[xm->xm_target] = tmp;
   1006   1.1   thorpej 	if (mpt->verbose > 1) {
   1007   1.1   thorpej 		mpt_prt(mpt,
   1008   1.1   thorpej 		    "SPI Target %d Page 1: RequestedParameters %x Config %x",
   1009   1.1   thorpej 		    xm->xm_target,
   1010   1.1   thorpej 		    mpt->mpt_dev_page1[xm->xm_target].RequestedParameters,
   1011   1.1   thorpej 		    mpt->mpt_dev_page1[xm->xm_target].Configuration);
   1012   1.1   thorpej 	}
   1013   1.1   thorpej 
   1014   1.1   thorpej 	/*
   1015   1.1   thorpej 	 * Make a note that we should perform an async callback at the
   1016   1.1   thorpej 	 * end of the next successful command completion to report the
   1017   1.1   thorpej 	 * negotiated transfer mode.
   1018   1.1   thorpej 	 */
   1019   1.1   thorpej 	mpt->mpt_report_xfer_mode |= (1 << xm->xm_target);
   1020   1.1   thorpej }
   1021   1.1   thorpej 
   1022   1.1   thorpej static void
   1023   1.1   thorpej mpt_get_xfer_mode(mpt_softc_t *mpt, struct scsipi_periph *periph)
   1024   1.1   thorpej {
   1025   1.1   thorpej 	fCONFIG_PAGE_SCSI_DEVICE_0 tmp;
   1026   1.1   thorpej 	struct scsipi_xfer_mode xm;
   1027   1.1   thorpej 	int period, offset;
   1028   1.1   thorpej 
   1029   1.1   thorpej 	tmp = mpt->mpt_dev_page0[periph->periph_target];
   1030   1.1   thorpej 	if (mpt_read_cfg_page(mpt, periph->periph_target, &tmp.Header)) {
   1031   1.1   thorpej 		mpt_prt(mpt, "unable to read Device Page 0");
   1032   1.1   thorpej 		return;
   1033   1.1   thorpej 	}
   1034   1.1   thorpej 
   1035   1.1   thorpej 	if (mpt->verbose > 1) {
   1036   1.1   thorpej 		mpt_prt(mpt,
   1037   1.1   thorpej 		    "SPI Tgt %d Page 0: NParms %x Information %x",
   1038   1.1   thorpej 		    periph->periph_target,
   1039   1.1   thorpej 		    tmp.NegotiatedParameters, tmp.Information);
   1040   1.1   thorpej 	}
   1041   1.1   thorpej 
   1042   1.1   thorpej 	xm.xm_target = periph->periph_target;
   1043   1.1   thorpej 	xm.xm_mode = 0;
   1044   1.1   thorpej 
   1045   1.1   thorpej 	if (tmp.NegotiatedParameters & MPI_SCSIDEVPAGE0_NP_WIDE)
   1046   1.1   thorpej 		xm.xm_mode |= PERIPH_CAP_WIDE16;
   1047   1.1   thorpej 
   1048   1.1   thorpej 	period = (tmp.NegotiatedParameters >> 8) & 0xff;
   1049   1.1   thorpej 	offset = (tmp.NegotiatedParameters >> 16) & 0xff;
   1050   1.1   thorpej 	if (offset) {
   1051   1.1   thorpej 		xm.xm_period = period;
   1052   1.1   thorpej 		xm.xm_offset = offset;
   1053   1.1   thorpej 		xm.xm_mode |= PERIPH_CAP_SYNC;
   1054   1.1   thorpej 	}
   1055   1.1   thorpej 
   1056   1.1   thorpej 	/*
   1057   1.1   thorpej 	 * Tagged queueing is all controlled by us; there is no
   1058   1.1   thorpej 	 * other setting to query.
   1059   1.1   thorpej 	 */
   1060   1.1   thorpej 	if (mpt->mpt_tag_enable & (1 << periph->periph_target))
   1061   1.1   thorpej 		xm.xm_mode |= PERIPH_CAP_TQING;
   1062   1.1   thorpej 
   1063   1.1   thorpej 	/*
   1064   1.1   thorpej 	 * We're going to deliver the async event, so clear the marker.
   1065   1.1   thorpej 	 */
   1066   1.1   thorpej 	mpt->mpt_report_xfer_mode &= ~(1 << periph->periph_target);
   1067   1.1   thorpej 
   1068   1.1   thorpej 	scsipi_async_event(&mpt->sc_channel, ASYNC_EVENT_XFER_MODE, &xm);
   1069   1.1   thorpej }
   1070   1.1   thorpej 
   1071   1.1   thorpej static void
   1072   1.1   thorpej mpt_ctlop(mpt_softc_t *mpt, void *vmsg, uint32_t reply)
   1073   1.1   thorpej {
   1074   1.1   thorpej 	MSG_DEFAULT_REPLY *dmsg = vmsg;
   1075   1.1   thorpej 
   1076   1.1   thorpej 	switch (dmsg->Function) {
   1077   1.1   thorpej 	case MPI_FUNCTION_EVENT_NOTIFICATION:
   1078   1.1   thorpej 		mpt_event_notify_reply(mpt, vmsg);
   1079   1.1   thorpej 		mpt_free_reply(mpt, (reply << 1));
   1080   1.1   thorpej 		break;
   1081   1.1   thorpej 
   1082   1.1   thorpej 	case MPI_FUNCTION_EVENT_ACK:
   1083   1.1   thorpej 		mpt_free_reply(mpt, (reply << 1));
   1084   1.1   thorpej 		break;
   1085   1.1   thorpej 
   1086   1.1   thorpej 	case MPI_FUNCTION_PORT_ENABLE:
   1087   1.1   thorpej 	    {
   1088   1.1   thorpej 		MSG_PORT_ENABLE_REPLY *msg = vmsg;
   1089   1.1   thorpej 		int index = msg->MsgContext & ~0x80000000;
   1090   1.1   thorpej 		if (mpt->verbose > 1)
   1091   1.1   thorpej 			mpt_prt(mpt, "enable port reply index %d", index);
   1092   1.1   thorpej 		if (index >= 0 && index < MPT_MAX_REQUESTS(mpt)) {
   1093   1.1   thorpej 			request_t *req = &mpt->request_pool[index];
   1094   1.1   thorpej 			req->debug = REQ_DONE;
   1095   1.1   thorpej 		}
   1096   1.1   thorpej 		mpt_free_reply(mpt, (reply << 1));
   1097   1.1   thorpej 		break;
   1098   1.1   thorpej 	    }
   1099   1.1   thorpej 
   1100   1.1   thorpej 	case MPI_FUNCTION_CONFIG:
   1101   1.1   thorpej 	    {
   1102   1.1   thorpej 		MSG_CONFIG_REPLY *msg = vmsg;
   1103   1.1   thorpej 		int index = msg->MsgContext & ~0x80000000;
   1104   1.1   thorpej 		if (index >= 0 && index < MPT_MAX_REQUESTS(mpt)) {
   1105   1.1   thorpej 			request_t *req = &mpt->request_pool[index];
   1106   1.1   thorpej 			req->debug = REQ_DONE;
   1107   1.1   thorpej 			req->sequence = reply;
   1108   1.1   thorpej 		} else
   1109   1.1   thorpej 			mpt_free_reply(mpt, (reply << 1));
   1110   1.1   thorpej 		break;
   1111   1.1   thorpej 	    }
   1112   1.1   thorpej 
   1113   1.1   thorpej 	default:
   1114   1.1   thorpej 		mpt_prt(mpt, "unknown ctlop: 0x%x", dmsg->Function);
   1115   1.1   thorpej 	}
   1116   1.1   thorpej }
   1117   1.1   thorpej 
   1118   1.1   thorpej static void
   1119   1.1   thorpej mpt_event_notify_reply(mpt_softc_t *mpt, MSG_EVENT_NOTIFY_REPLY *msg)
   1120   1.1   thorpej {
   1121   1.1   thorpej 
   1122   1.1   thorpej 	switch (msg->Event) {
   1123   1.1   thorpej 	case MPI_EVENT_LOG_DATA:
   1124   1.1   thorpej 	    {
   1125   1.1   thorpej 		int i;
   1126   1.1   thorpej 
   1127   1.1   thorpej 		/* Some error occurrerd that the Fusion wants logged. */
   1128   1.1   thorpej 		mpt_prt(mpt, "EvtLogData: IOCLogInfo: 0x%08x", msg->IOCLogInfo);
   1129   1.1   thorpej 		mpt_prt(mpt, "EvtLogData: Event Data:");
   1130   1.1   thorpej 		for (i = 0; i < msg->EventDataLength; i++) {
   1131   1.1   thorpej 			if ((i % 4) == 0)
   1132   1.1   thorpej 				printf("%s:\t", mpt->sc_dev.dv_xname);
   1133   1.1   thorpej 			printf("0x%08x%c", msg->Data[i],
   1134   1.1   thorpej 			    ((i % 4) == 3) ? '\n' : ' ');
   1135   1.1   thorpej 		}
   1136   1.1   thorpej 		if ((i % 4) != 0)
   1137   1.1   thorpej 			printf("\n");
   1138   1.1   thorpej 		break;
   1139   1.1   thorpej 	    }
   1140   1.1   thorpej 
   1141   1.1   thorpej 	case MPI_EVENT_UNIT_ATTENTION:
   1142   1.1   thorpej 		mpt_prt(mpt, "Unit Attn: Bus 0x%02x Target 0x%02x",
   1143   1.1   thorpej 		    (msg->Data[0] >> 8) & 0xff, msg->Data[0] & 0xff);
   1144   1.1   thorpej 		break;
   1145   1.1   thorpej 
   1146   1.1   thorpej 	case MPI_EVENT_IOC_BUS_RESET:
   1147   1.1   thorpej 		/* We generated a bus reset. */
   1148   1.1   thorpej 		mpt_prt(mpt, "IOC Bus Reset Port %d",
   1149   1.1   thorpej 		    (msg->Data[0] >> 8) & 0xff);
   1150   1.1   thorpej 		break;
   1151   1.1   thorpej 
   1152   1.1   thorpej 	case MPI_EVENT_EXT_BUS_RESET:
   1153   1.1   thorpej 		/* Someone else generated a bus reset. */
   1154   1.1   thorpej 		mpt_prt(mpt, "External Bus Reset");
   1155   1.1   thorpej 		/*
   1156   1.1   thorpej 		 * These replies don't return EventData like the MPI
   1157   1.1   thorpej 		 * spec says they do.
   1158   1.1   thorpej 		 */
   1159   1.1   thorpej 		/* XXX Send an async event? */
   1160   1.1   thorpej 		break;
   1161   1.1   thorpej 
   1162   1.1   thorpej 	case MPI_EVENT_RESCAN:
   1163   1.1   thorpej 		/*
   1164   1.1   thorpej 		 * In general, thise means a device has been added
   1165   1.1   thorpej 		 * to the loop.
   1166   1.1   thorpej 		 */
   1167   1.1   thorpej 		mpt_prt(mpt, "Rescan Port %d", (msg->Data[0] >> 8) & 0xff);
   1168   1.1   thorpej 		/* XXX Send an async event? */
   1169   1.1   thorpej 		break;
   1170   1.1   thorpej 
   1171   1.1   thorpej 	case MPI_EVENT_LINK_STATUS_CHANGE:
   1172   1.1   thorpej 		mpt_prt(mpt, "Port %d: Link state %s",
   1173   1.1   thorpej 		    (msg->Data[1] >> 8) & 0xff,
   1174   1.1   thorpej 		    (msg->Data[0] & 0xff) == 0 ? "Failed" : "Active");
   1175   1.1   thorpej 		break;
   1176   1.1   thorpej 
   1177   1.1   thorpej 	case MPI_EVENT_LOOP_STATE_CHANGE:
   1178   1.1   thorpej 		switch ((msg->Data[0] >> 16) & 0xff) {
   1179   1.1   thorpej 		case 0x01:
   1180   1.1   thorpej 			mpt_prt(mpt,
   1181   1.1   thorpej 			    "Port %d: FC Link Event: LIP(%02x,%02x) "
   1182   1.1   thorpej 			    "(Loop Initialization)",
   1183   1.1   thorpej 			    (msg->Data[1] >> 8) & 0xff,
   1184   1.1   thorpej 			    (msg->Data[0] >> 8) & 0xff,
   1185   1.1   thorpej 			    (msg->Data[0]     ) & 0xff);
   1186   1.1   thorpej 			switch ((msg->Data[0] >> 8) & 0xff) {
   1187   1.1   thorpej 			case 0xf7:
   1188   1.1   thorpej 				if ((msg->Data[0] & 0xff) == 0xf7)
   1189   1.1   thorpej 					mpt_prt(mpt, "\tDevice needs AL_PA");
   1190   1.1   thorpej 				else
   1191   1.1   thorpej 					mpt_prt(mpt, "\tDevice %02x doesn't "
   1192   1.1   thorpej 					    "like FC performance",
   1193   1.1   thorpej 					    msg->Data[0] & 0xff);
   1194   1.1   thorpej 				break;
   1195   1.1   thorpej 
   1196   1.1   thorpej 			case 0xf8:
   1197   1.1   thorpej 				if ((msg->Data[0] & 0xff) == 0xf7)
   1198   1.1   thorpej 					mpt_prt(mpt, "\tDevice detected loop "
   1199   1.1   thorpej 					    "failure before acquiring AL_PA");
   1200   1.1   thorpej 				else
   1201   1.1   thorpej 					mpt_prt(mpt, "\tDevice %02x detected "
   1202   1.1   thorpej 					    "loop failure",
   1203   1.1   thorpej 					    msg->Data[0] & 0xff);
   1204   1.1   thorpej 				break;
   1205   1.1   thorpej 
   1206   1.1   thorpej 			default:
   1207   1.1   thorpej 				mpt_prt(mpt, "\tDevice %02x requests that "
   1208   1.1   thorpej 				    "device %02x reset itself",
   1209   1.1   thorpej 				    msg->Data[0] & 0xff,
   1210   1.1   thorpej 				    (msg->Data[0] >> 8) & 0xff);
   1211   1.1   thorpej 				break;
   1212   1.1   thorpej 			}
   1213   1.1   thorpej 			break;
   1214   1.1   thorpej 
   1215   1.1   thorpej 		case 0x02:
   1216   1.1   thorpej 			mpt_prt(mpt, "Port %d: FC Link Event: LPE(%02x,%02x) "
   1217   1.1   thorpej 			    "(Loop Port Enable)",
   1218   1.1   thorpej 			    (msg->Data[1] >> 8) & 0xff,
   1219   1.1   thorpej 			    (msg->Data[0] >> 8) & 0xff,
   1220   1.1   thorpej 			    (msg->Data[0]     ) & 0xff);
   1221   1.1   thorpej 			break;
   1222   1.1   thorpej 
   1223   1.1   thorpej 		case 0x03:
   1224   1.1   thorpej 			mpt_prt(mpt, "Port %d: FC Link Event: LPB(%02x,%02x) "
   1225   1.1   thorpej 			    "(Loop Port Bypass)",
   1226   1.1   thorpej 			    (msg->Data[1] >> 8) & 0xff,
   1227   1.1   thorpej 			    (msg->Data[0] >> 8) & 0xff,
   1228   1.1   thorpej 			    (msg->Data[0]     ) & 0xff);
   1229   1.1   thorpej 			break;
   1230   1.1   thorpej 
   1231   1.1   thorpej 		default:
   1232   1.1   thorpej 			mpt_prt(mpt, "Port %d: FC Link Event: "
   1233   1.1   thorpej 			    "Unknown event (%02x %02x %02x)",
   1234   1.1   thorpej 			    (msg->Data[1] >>  8) & 0xff,
   1235   1.1   thorpej 			    (msg->Data[0] >> 16) & 0xff,
   1236   1.1   thorpej 			    (msg->Data[0] >>  8) & 0xff,
   1237   1.1   thorpej 			    (msg->Data[0]      ) & 0xff);
   1238   1.1   thorpej 			break;
   1239   1.1   thorpej 		}
   1240   1.1   thorpej 		break;
   1241   1.1   thorpej 
   1242   1.1   thorpej 	case MPI_EVENT_LOGOUT:
   1243   1.1   thorpej 		mpt_prt(mpt, "Port %d: FC Logout: N_PortID: %02x",
   1244   1.1   thorpej 		    (msg->Data[1] >> 8) & 0xff, msg->Data[0]);
   1245   1.1   thorpej 		break;
   1246   1.1   thorpej 
   1247   1.1   thorpej 	case MPI_EVENT_EVENT_CHANGE:
   1248   1.1   thorpej 		/*
   1249   1.1   thorpej 		 * This is just an acknowledgement of our
   1250   1.1   thorpej 		 * mpt_send_event_request().
   1251   1.1   thorpej 		 */
   1252   1.1   thorpej 		break;
   1253   1.1   thorpej 
   1254  1.12      tron 	case MPI_EVENT_SAS_PHY_LINK_STATUS:
   1255  1.13      tron 		switch ((msg->Data[0] >> 12) & 0x0f) {
   1256  1.12      tron 		case 0x00:
   1257  1.12      tron 			mpt_prt(mpt, "Phy %d: Link Status Unknown",
   1258  1.12      tron 			    msg->Data[0] & 0xff);
   1259  1.12      tron 			break;
   1260  1.12      tron 		case 0x01:
   1261  1.12      tron 			mpt_prt(mpt, "Phy %d: Link Disabled",
   1262  1.12      tron 			    msg->Data[0] & 0xff);
   1263  1.12      tron 			break;
   1264  1.12      tron 		case 0x02:
   1265  1.12      tron 			mpt_prt(mpt, "Phy %d: Failed Speed Negotiation",
   1266  1.12      tron 			    msg->Data[0] & 0xff);
   1267  1.12      tron 			break;
   1268  1.12      tron 		case 0x03:
   1269  1.12      tron 			mpt_prt(mpt, "Phy %d: SATA OOB Complete",
   1270  1.12      tron 			    msg->Data[0] & 0xff);
   1271  1.12      tron 			break;
   1272  1.12      tron 		case 0x08:
   1273  1.12      tron 			mpt_prt(mpt, "Phy %d: Link Rate 1.5 Gbps",
   1274  1.12      tron 			    msg->Data[0] & 0xff);
   1275  1.12      tron 			break;
   1276  1.12      tron 		case 0x09:
   1277  1.12      tron 			mpt_prt(mpt, "Phy %d: Link Rate 3.0 Gbps",
   1278  1.12      tron 			    msg->Data[0] & 0xff);
   1279  1.12      tron 			break;
   1280  1.13      tron 		default:
   1281  1.12      tron 			mpt_prt(mpt, "Phy %d: SAS Phy Link Status Event: "
   1282  1.12      tron 			    "Unknown event (%0x)",
   1283  1.12      tron 			    msg->Data[0] & 0xff, (msg->Data[0] >> 8) & 0xff);
   1284  1.12      tron 		}
   1285  1.12      tron 		break;
   1286  1.12      tron 
   1287  1.12      tron 	case MPI_EVENT_SAS_DEVICE_STATUS_CHANGE:
   1288  1.12      tron 	case MPI_EVENT_SAS_DISCOVERY:
   1289  1.12      tron 		/* ignore these events for now */
   1290  1.12      tron 		break;
   1291  1.12      tron 
   1292   1.1   thorpej 	default:
   1293   1.1   thorpej 		mpt_prt(mpt, "Unknown async event: 0x%x", msg->Event);
   1294   1.1   thorpej 		break;
   1295   1.1   thorpej 	}
   1296   1.9     perry 
   1297   1.1   thorpej 	if (msg->AckRequired) {
   1298   1.1   thorpej 		MSG_EVENT_ACK *ackp;
   1299   1.1   thorpej 		request_t *req;
   1300   1.1   thorpej 
   1301   1.1   thorpej 		if ((req = mpt_get_request(mpt)) == NULL) {
   1302   1.1   thorpej 			/* XXX XXX XXX XXXJRT */
   1303   1.1   thorpej 			panic("mpt_event_notify_reply: unable to allocate "
   1304   1.1   thorpej 			    "request structure");
   1305   1.1   thorpej 		}
   1306   1.1   thorpej 
   1307   1.1   thorpej 		ackp = (MSG_EVENT_ACK *) req->req_vbuf;
   1308   1.1   thorpej 		memset(ackp, 0, sizeof(*ackp));
   1309   1.1   thorpej 		ackp->Function = MPI_FUNCTION_EVENT_ACK;
   1310   1.1   thorpej 		ackp->Event = msg->Event;
   1311   1.1   thorpej 		ackp->EventContext = msg->EventContext;
   1312   1.1   thorpej 		ackp->MsgContext = req->index | 0x80000000;
   1313   1.1   thorpej 		mpt_check_doorbell(mpt);
   1314   1.1   thorpej 		mpt_send_cmd(mpt, req);
   1315   1.1   thorpej 	}
   1316   1.1   thorpej }
   1317   1.1   thorpej 
   1318   1.1   thorpej /* XXXJRT mpt_bus_reset() */
   1319   1.1   thorpej 
   1320   1.1   thorpej /*****************************************************************************
   1321   1.1   thorpej  * SCSI interface routines
   1322   1.1   thorpej  *****************************************************************************/
   1323   1.1   thorpej 
   1324   1.1   thorpej static void
   1325   1.1   thorpej mpt_scsipi_request(struct scsipi_channel *chan, scsipi_adapter_req_t req,
   1326   1.1   thorpej     void *arg)
   1327   1.1   thorpej {
   1328   1.1   thorpej 	struct scsipi_adapter *adapt = chan->chan_adapter;
   1329   1.1   thorpej 	mpt_softc_t *mpt = (void *) adapt->adapt_dev;
   1330   1.1   thorpej 
   1331   1.1   thorpej 	switch (req) {
   1332   1.1   thorpej 	case ADAPTER_REQ_RUN_XFER:
   1333   1.1   thorpej 		mpt_run_xfer(mpt, (struct scsipi_xfer *) arg);
   1334   1.1   thorpej 		return;
   1335   1.1   thorpej 
   1336   1.1   thorpej 	case ADAPTER_REQ_GROW_RESOURCES:
   1337   1.1   thorpej 		/* Not supported. */
   1338   1.1   thorpej 		return;
   1339   1.1   thorpej 
   1340   1.1   thorpej 	case ADAPTER_REQ_SET_XFER_MODE:
   1341   1.1   thorpej 		mpt_set_xfer_mode(mpt, (struct scsipi_xfer_mode *) arg);
   1342   1.1   thorpej 		return;
   1343   1.1   thorpej 	}
   1344   1.1   thorpej }
   1345   1.1   thorpej 
   1346   1.1   thorpej static void
   1347   1.1   thorpej mpt_minphys(struct buf *bp)
   1348   1.1   thorpej {
   1349   1.1   thorpej 
   1350   1.1   thorpej /*
   1351   1.1   thorpej  * Subtract one from the SGL limit, since we need an extra one to handle
   1352   1.1   thorpej  * an non-page-aligned transfer.
   1353   1.1   thorpej  */
   1354   1.1   thorpej #define	MPT_MAX_XFER	((MPT_SGL_MAX - 1) * PAGE_SIZE)
   1355   1.1   thorpej 
   1356   1.1   thorpej 	if (bp->b_bcount > MPT_MAX_XFER)
   1357   1.1   thorpej 		bp->b_bcount = MPT_MAX_XFER;
   1358   1.1   thorpej 	minphys(bp);
   1359   1.1   thorpej }
   1360