LCOV - code coverage report
Current view: top level - dev/ic - ciss.c (source / functions) Hit Total Coverage
Test: 6.4 Lines: 0 739 0.0 %
Date: 2018-10-19 03:25:38 Functions: 0 22 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*      $OpenBSD: ciss.c,v 1.75 2016/08/14 04:08:03 dlg Exp $   */
       2             : 
       3             : /*
       4             :  * Copyright (c) 2005,2006 Michael Shalayeff
       5             :  * All rights reserved.
       6             :  *
       7             :  * Permission to use, copy, modify, and distribute this software for any
       8             :  * purpose with or without fee is hereby granted, provided that the above
       9             :  * copyright notice and this permission notice appear in all copies.
      10             :  *
      11             :  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
      12             :  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
      13             :  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
      14             :  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
      15             :  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
      16             :  * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
      17             :  * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
      18             :  */
      19             : 
      20             : #include "bio.h"
      21             : 
      22             : /* #define CISS_DEBUG */
      23             : 
      24             : #include <sys/param.h>
      25             : #include <sys/systm.h>
      26             : #include <sys/buf.h>
      27             : #include <sys/ioctl.h>
      28             : #include <sys/device.h>
      29             : #include <sys/kernel.h>
      30             : #include <sys/malloc.h>
      31             : 
      32             : #include <machine/bus.h>
      33             : 
      34             : #include <scsi/scsi_all.h>
      35             : #include <scsi/scsiconf.h>
      36             : 
      37             : #include <dev/ic/cissreg.h>
      38             : #include <dev/ic/cissvar.h>
      39             : 
      40             : #if NBIO > 0
      41             : #include <dev/biovar.h>
      42             : #endif
      43             : #include <sys/sensors.h>
      44             : 
      45             : #ifdef CISS_DEBUG
      46             : #define CISS_DPRINTF(m,a)       if (ciss_debug & (m)) printf a
      47             : #define CISS_D_CMD      0x0001
      48             : #define CISS_D_INTR     0x0002
      49             : #define CISS_D_MISC     0x0004
      50             : #define CISS_D_DMA      0x0008
      51             : #define CISS_D_IOCTL    0x0010
      52             : #define CISS_D_ERR      0x0020
      53             : int ciss_debug = 0
      54             : /*      | CISS_D_CMD */
      55             : /*      | CISS_D_INTR */
      56             : /*      | CISS_D_MISC */
      57             : /*      | CISS_D_DMA */
      58             : /*      | CISS_D_IOCTL */
      59             : /*      | CISS_D_ERR */
      60             :         ;
      61             : #else
      62             : #define CISS_DPRINTF(m,a)       /* m, a */
      63             : #endif
      64             : 
      65             : struct cfdriver ciss_cd = {
      66             :         NULL, "ciss", DV_DULL
      67             : };
      68             : 
      69             : void    ciss_scsi_cmd(struct scsi_xfer *xs);
      70             : int     ciss_scsi_ioctl(struct scsi_link *, u_long, caddr_t, int);
      71             : void    cissminphys(struct buf *bp, struct scsi_link *sl);
      72             : 
      73             : struct scsi_adapter ciss_switch = {
      74             :         ciss_scsi_cmd, cissminphys, NULL, NULL, ciss_scsi_ioctl
      75             : };
      76             : 
      77             : #if NBIO > 0
      78             : int     ciss_ioctl(struct device *, u_long, caddr_t);
      79             : #endif
      80             : int     ciss_sync(struct ciss_softc *sc);
      81             : void    ciss_heartbeat(void *v);
      82             : #ifndef SMALL_KERNEL
      83             : void    ciss_sensors(void *);
      84             : #endif
      85             : 
      86             : void *  ciss_get_ccb(void *);
      87             : void    ciss_put_ccb(void *, void *);
      88             : int     ciss_cmd(struct ciss_ccb *ccb, int flags, int wait);
      89             : int     ciss_done(struct ciss_ccb *ccb);
      90             : int     ciss_error(struct ciss_ccb *ccb);
      91             : 
      92             : struct ciss_ld *ciss_pdscan(struct ciss_softc *sc, int ld);
      93             : int     ciss_inq(struct ciss_softc *sc, struct ciss_inquiry *inq);
      94             : int     ciss_ldmap(struct ciss_softc *sc);
      95             : int     ciss_ldid(struct ciss_softc *, int, struct ciss_ldid *);
      96             : int     ciss_ldstat(struct ciss_softc *, int, struct ciss_ldstat *);
      97             : int     ciss_pdid(struct ciss_softc *, u_int8_t, struct ciss_pdid *, int);
      98             : int     ciss_blink(struct ciss_softc *, int, int, int, struct ciss_blink *);
      99             : 
     100             : void *
     101           0 : ciss_get_ccb(void *xsc)
     102             : {
     103           0 :         struct ciss_softc *sc = xsc;
     104             :         struct ciss_ccb *ccb;
     105             : 
     106           0 :         mtx_enter(&sc->sc_free_ccb_mtx);
     107           0 :         ccb = SLIST_FIRST(&sc->sc_free_ccb);
     108           0 :         if (ccb != NULL) {
     109           0 :                 SLIST_REMOVE_HEAD(&sc->sc_free_ccb, ccb_link);
     110           0 :                 ccb->ccb_state = CISS_CCB_READY;
     111           0 :                 ccb->ccb_xs = NULL;
     112           0 :         }
     113           0 :         mtx_leave(&sc->sc_free_ccb_mtx);
     114             : 
     115           0 :         return (ccb);
     116             : }
     117             : 
     118             : void
     119           0 : ciss_put_ccb(void *xsc, void *xccb)
     120             : {
     121           0 :         struct ciss_softc *sc = xsc;
     122           0 :         struct ciss_ccb *ccb = xccb;
     123             : 
     124           0 :         ccb->ccb_state = CISS_CCB_FREE;
     125           0 :         ccb->ccb_xs = NULL;
     126           0 :         ccb->ccb_data = NULL;
     127             : 
     128           0 :         mtx_enter(&sc->sc_free_ccb_mtx);
     129           0 :         SLIST_INSERT_HEAD(&sc->sc_free_ccb, ccb, ccb_link);
     130           0 :         mtx_leave(&sc->sc_free_ccb_mtx);
     131           0 : }
     132             : 
     133             : int
     134           0 : ciss_attach(struct ciss_softc *sc)
     135             : {
     136           0 :         struct scsibus_attach_args saa;
     137             :         struct scsibus_softc *scsibus;
     138             :         struct ciss_ccb *ccb;
     139             :         struct ciss_cmd *cmd;
     140             :         struct ciss_inquiry *inq;
     141           0 :         bus_dma_segment_t seg[1];
     142           0 :         int error, i, total, rseg, maxfer;
     143             :         ciss_lock_t lock;
     144             :         paddr_t pa;
     145             : 
     146           0 :         bus_space_read_region_4(sc->iot, sc->cfg_ioh, sc->cfgoff,
     147             :             (u_int32_t *)&sc->cfg, sizeof(sc->cfg) / 4);
     148             : 
     149           0 :         if (sc->cfg.signature != CISS_SIGNATURE) {
     150           0 :                 printf(": bad sign 0x%08x\n", sc->cfg.signature);
     151           0 :                 return -1;
     152             :         }
     153             : 
     154           0 :         if (!(sc->cfg.methods & CISS_METH_SIMPL)) {
     155           0 :                 printf(": not simple 0x%08x\n", sc->cfg.methods);
     156           0 :                 return -1;
     157             :         }
     158             : 
     159           0 :         sc->cfg.rmethod = CISS_METH_SIMPL;
     160           0 :         sc->cfg.paddr_lim = 0;                       /* 32bit addrs */
     161           0 :         sc->cfg.int_delay = 0;                       /* disable coalescing */
     162           0 :         sc->cfg.int_count = 0;
     163           0 :         strlcpy(sc->cfg.hostname, "HUMPPA", sizeof(sc->cfg.hostname));
     164           0 :         sc->cfg.driverf |= CISS_DRV_PRF;     /* enable prefetch */
     165           0 :         if (!sc->cfg.maxsg)
     166           0 :                 sc->cfg.maxsg = MAXPHYS / PAGE_SIZE;
     167             : 
     168           0 :         bus_space_write_region_4(sc->iot, sc->cfg_ioh, sc->cfgoff,
     169             :             (u_int32_t *)&sc->cfg, sizeof(sc->cfg) / 4);
     170           0 :         bus_space_barrier(sc->iot, sc->cfg_ioh, sc->cfgoff, sizeof(sc->cfg),
     171             :             BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE);
     172             : 
     173           0 :         bus_space_write_4(sc->iot, sc->ioh, CISS_IDB, CISS_IDB_CFG);
     174           0 :         bus_space_barrier(sc->iot, sc->ioh, CISS_IDB, 4,
     175             :             BUS_SPACE_BARRIER_WRITE);
     176           0 :         for (i = 1000; i--; DELAY(1000)) {
     177             :                 /* XXX maybe IDB is really 64bit? - hp dl380 needs this */
     178           0 :                 (void)bus_space_read_4(sc->iot, sc->ioh, CISS_IDB + 4);
     179           0 :                 if (!(bus_space_read_4(sc->iot, sc->ioh, CISS_IDB) & CISS_IDB_CFG))
     180             :                         break;
     181           0 :                 bus_space_barrier(sc->iot, sc->ioh, CISS_IDB, 4,
     182             :                     BUS_SPACE_BARRIER_READ);
     183             :         }
     184             : 
     185           0 :         if (bus_space_read_4(sc->iot, sc->ioh, CISS_IDB) & CISS_IDB_CFG) {
     186           0 :                 printf(": cannot set config\n");
     187           0 :                 return -1;
     188             :         }
     189             : 
     190           0 :         bus_space_read_region_4(sc->iot, sc->cfg_ioh, sc->cfgoff,
     191             :             (u_int32_t *)&sc->cfg, sizeof(sc->cfg) / 4);
     192             : 
     193           0 :         if (!(sc->cfg.amethod & CISS_METH_SIMPL)) {
     194           0 :                 printf(": cannot simplify 0x%08x\n", sc->cfg.amethod);
     195           0 :                 return -1;
     196             :         }
     197             : 
     198             :         /* i'm ready for you and i hope you're ready for me */
     199           0 :         for (i = 30000; i--; DELAY(1000)) {
     200           0 :                 if (bus_space_read_4(sc->iot, sc->cfg_ioh, sc->cfgoff +
     201           0 :                     offsetof(struct ciss_config, amethod)) & CISS_METH_READY)
     202             :                         break;
     203           0 :                 bus_space_barrier(sc->iot, sc->cfg_ioh, sc->cfgoff +
     204             :                     offsetof(struct ciss_config, amethod), 4,
     205             :                     BUS_SPACE_BARRIER_READ);
     206             :         }
     207             : 
     208           0 :         if (!(bus_space_read_4(sc->iot, sc->cfg_ioh, sc->cfgoff +
     209           0 :             offsetof(struct ciss_config, amethod)) & CISS_METH_READY)) {
     210           0 :                 printf(": she never came ready for me 0x%08x\n",
     211           0 :                     sc->cfg.amethod);
     212           0 :                 return -1;
     213             :         }
     214             : 
     215           0 :         sc->maxcmd = sc->cfg.maxcmd;
     216           0 :         sc->maxsg = sc->cfg.maxsg;
     217           0 :         if (sc->maxsg > MAXPHYS / PAGE_SIZE)
     218           0 :                 sc->maxsg = MAXPHYS / PAGE_SIZE;
     219           0 :         i = sizeof(struct ciss_ccb) +
     220           0 :             sizeof(ccb->ccb_cmd.sgl[0]) * (sc->maxsg - 1);
     221           0 :         for (sc->ccblen = 0x10; sc->ccblen < i; sc->ccblen <<= 1);
     222             : 
     223           0 :         total = sc->ccblen * sc->maxcmd;
     224           0 :         if ((error = bus_dmamem_alloc(sc->dmat, total, PAGE_SIZE, 0,
     225             :             sc->cmdseg, 1, &rseg, BUS_DMA_NOWAIT | BUS_DMA_ZERO))) {
     226           0 :                 printf(": cannot allocate CCBs (%d)\n", error);
     227           0 :                 return -1;
     228             :         }
     229             : 
     230           0 :         if ((error = bus_dmamem_map(sc->dmat, sc->cmdseg, rseg, total,
     231             :             (caddr_t *)&sc->ccbs, BUS_DMA_NOWAIT))) {
     232           0 :                 printf(": cannot map CCBs (%d)\n", error);
     233           0 :                 return -1;
     234             :         }
     235             : 
     236           0 :         if ((error = bus_dmamap_create(sc->dmat, total, 1,
     237             :             total, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &sc->cmdmap))) {
     238           0 :                 printf(": cannot create CCBs dmamap (%d)\n", error);
     239           0 :                 bus_dmamem_free(sc->dmat, sc->cmdseg, 1);
     240           0 :                 return -1;
     241             :         }
     242             : 
     243           0 :         if ((error = bus_dmamap_load(sc->dmat, sc->cmdmap, sc->ccbs, total,
     244             :             NULL, BUS_DMA_NOWAIT))) {
     245           0 :                 printf(": cannot load CCBs dmamap (%d)\n", error);
     246           0 :                 bus_dmamem_free(sc->dmat, sc->cmdseg, 1);
     247           0 :                 bus_dmamap_destroy(sc->dmat, sc->cmdmap);
     248           0 :                 return -1;
     249             :         }
     250             : 
     251           0 :         SLIST_INIT(&sc->sc_free_ccb);
     252           0 :         mtx_init(&sc->sc_free_ccb_mtx, IPL_BIO);
     253             : 
     254           0 :         maxfer = sc->maxsg * PAGE_SIZE;
     255           0 :         for (i = 0; total; i++, total -= sc->ccblen) {
     256           0 :                 ccb = sc->ccbs + i * sc->ccblen;
     257           0 :                 cmd = &ccb->ccb_cmd;
     258           0 :                 pa = sc->cmdseg[0].ds_addr + i * sc->ccblen;
     259             : 
     260           0 :                 ccb->ccb_sc = sc;
     261           0 :                 ccb->ccb_cmdpa = pa + offsetof(struct ciss_ccb, ccb_cmd);
     262           0 :                 ccb->ccb_state = CISS_CCB_FREE;
     263             : 
     264           0 :                 cmd->id = htole32(i << 2);
     265           0 :                 cmd->id_hi = htole32(0);
     266           0 :                 cmd->sgin = sc->maxsg;
     267           0 :                 cmd->sglen = htole16((u_int16_t)cmd->sgin);
     268           0 :                 cmd->err_len = htole32(sizeof(ccb->ccb_err));
     269           0 :                 pa += offsetof(struct ciss_ccb, ccb_err);
     270           0 :                 cmd->err_pa = htole64((u_int64_t)pa);
     271             : 
     272           0 :                 if ((error = bus_dmamap_create(sc->dmat, maxfer, sc->maxsg,
     273             :                     maxfer, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW,
     274             :                     &ccb->ccb_dmamap)))
     275             :                         break;
     276             : 
     277           0 :                 SLIST_INSERT_HEAD(&sc->sc_free_ccb, ccb, ccb_link);
     278             :         }
     279             : 
     280           0 :         scsi_iopool_init(&sc->sc_iopool, sc, ciss_get_ccb, ciss_put_ccb);
     281             : 
     282           0 :         if (i < sc->maxcmd) {
     283           0 :                 printf(": cannot create ccb#%d dmamap (%d)\n", i, error);
     284           0 :                 if (i == 0) {
     285             :                         /* TODO leaking cmd's dmamaps and shitz */
     286           0 :                         bus_dmamem_free(sc->dmat, sc->cmdseg, 1);
     287           0 :                         bus_dmamap_destroy(sc->dmat, sc->cmdmap);
     288           0 :                         return -1;
     289             :                 }
     290             :         }
     291             : 
     292           0 :         if ((error = bus_dmamem_alloc(sc->dmat, PAGE_SIZE, PAGE_SIZE, 0,
     293             :             seg, 1, &rseg, BUS_DMA_NOWAIT | BUS_DMA_ZERO))) {
     294           0 :                 printf(": cannot allocate scratch buffer (%d)\n", error);
     295           0 :                 return -1;
     296             :         }
     297             : 
     298           0 :         if ((error = bus_dmamem_map(sc->dmat, seg, rseg, PAGE_SIZE,
     299             :             (caddr_t *)&sc->scratch, BUS_DMA_NOWAIT))) {
     300           0 :                 printf(": cannot map scratch buffer (%d)\n", error);
     301           0 :                 return -1;
     302             :         }
     303             : 
     304           0 :         lock = CISS_LOCK_SCRATCH(sc);
     305           0 :         inq = sc->scratch;
     306           0 :         if (ciss_inq(sc, inq)) {
     307           0 :                 printf(": adapter inquiry failed\n");
     308           0 :                 CISS_UNLOCK_SCRATCH(sc, lock);
     309           0 :                 bus_dmamem_free(sc->dmat, sc->cmdseg, 1);
     310           0 :                 bus_dmamap_destroy(sc->dmat, sc->cmdmap);
     311           0 :                 return -1;
     312             :         }
     313             : 
     314           0 :         if (!(inq->flags & CISS_INQ_BIGMAP)) {
     315           0 :                 printf(": big map is not supported, flags=%b\n",
     316             :                     inq->flags, CISS_INQ_BITS);
     317           0 :                 CISS_UNLOCK_SCRATCH(sc, lock);
     318           0 :                 bus_dmamem_free(sc->dmat, sc->cmdseg, 1);
     319           0 :                 bus_dmamap_destroy(sc->dmat, sc->cmdmap);
     320           0 :                 return -1;
     321             :         }
     322             : 
     323           0 :         sc->maxunits = inq->numld;
     324           0 :         sc->nbus = inq->nscsi_bus;
     325           0 :         sc->ndrives = inq->buswidth? inq->buswidth : 256;
     326           0 :         printf(": %d LD%s, HW rev %d, FW %4.4s/%4.4s",
     327           0 :             inq->numld, inq->numld == 1? "" : "s",
     328           0 :             inq->hw_rev, inq->fw_running, inq->fw_stored);
     329           0 :         if (sc->cfg.methods & CISS_METH_FIFO64)
     330           0 :                 printf(", 64bit fifo");
     331           0 :         else if (sc->cfg.methods & CISS_METH_FIFO64_RRO)
     332           0 :                 printf(", 64bit fifo rro");
     333           0 :         printf("\n");
     334             : 
     335           0 :         CISS_UNLOCK_SCRATCH(sc, lock);
     336             : 
     337           0 :         timeout_set(&sc->sc_hb, ciss_heartbeat, sc);
     338           0 :         timeout_add_sec(&sc->sc_hb, 3);
     339             : 
     340             :         /* map LDs */
     341           0 :         if (ciss_ldmap(sc)) {
     342           0 :                 printf("%s: adapter LD map failed\n", sc->sc_dev.dv_xname);
     343           0 :                 bus_dmamem_free(sc->dmat, sc->cmdseg, 1);
     344           0 :                 bus_dmamap_destroy(sc->dmat, sc->cmdmap);
     345           0 :                 return -1;
     346             :         }
     347             : 
     348           0 :         if (!(sc->sc_lds = mallocarray(sc->maxunits, sizeof(*sc->sc_lds),
     349             :             M_DEVBUF, M_NOWAIT | M_ZERO))) {
     350           0 :                 bus_dmamem_free(sc->dmat, sc->cmdseg, 1);
     351           0 :                 bus_dmamap_destroy(sc->dmat, sc->cmdmap);
     352           0 :                 return -1;
     353             :         }
     354             : 
     355           0 :         sc->sc_flush = CISS_FLUSH_ENABLE;
     356             : 
     357           0 :         sc->sc_link.adapter_softc = sc;
     358           0 :         sc->sc_link.openings = sc->maxcmd;
     359           0 :         sc->sc_link.adapter = &ciss_switch;
     360           0 :         sc->sc_link.luns = 1;
     361           0 :         sc->sc_link.adapter_target = sc->maxunits;
     362           0 :         sc->sc_link.adapter_buswidth = sc->maxunits;
     363           0 :         sc->sc_link.pool = &sc->sc_iopool;
     364           0 :         bzero(&saa, sizeof(saa));
     365           0 :         saa.saa_sc_link = &sc->sc_link;
     366           0 :         scsibus = (struct scsibus_softc *)config_found_sm(&sc->sc_dev,
     367             :             &saa, scsiprint, NULL);
     368             : 
     369             : #if NBIO > 0
     370             :         /* XXX for now we can only deal w/ one volume. */
     371           0 :         if (!scsibus || sc->maxunits > 1)
     372           0 :                 return 0;
     373             : 
     374             :         /* now map all the physdevs into their lds */
     375             :         /* XXX currently we assign all pf 'em into ld#0 */
     376           0 :         for (i = 0; i < sc->maxunits; i++)
     377           0 :                 if (!(sc->sc_lds[i] = ciss_pdscan(sc, i)))
     378           0 :                         return 0;
     379             : 
     380           0 :         if (bio_register(&sc->sc_dev, ciss_ioctl) != 0)
     381           0 :                 printf("%s: controller registration failed",
     382           0 :                     sc->sc_dev.dv_xname);
     383             : 
     384           0 :         sc->sc_flags |= CISS_BIO;
     385             : #ifndef SMALL_KERNEL
     386           0 :         sc->sensors = mallocarray(sc->maxunits, sizeof(struct ksensor),
     387             :             M_DEVBUF, M_NOWAIT | M_ZERO);
     388           0 :         if (sc->sensors) {
     389             :                 struct device *dev;
     390             : 
     391           0 :                 strlcpy(sc->sensordev.xname, sc->sc_dev.dv_xname,
     392             :                     sizeof(sc->sensordev.xname));
     393           0 :                 for (i = 0; i < sc->maxunits; i++) {
     394           0 :                         sc->sensors[i].type = SENSOR_DRIVE;
     395           0 :                         sc->sensors[i].status = SENSOR_S_UNKNOWN;
     396           0 :                         dev = scsi_get_link(scsibus, i, 0)->device_softc;
     397           0 :                         strlcpy(sc->sensors[i].desc, dev->dv_xname,
     398             :                             sizeof(sc->sensors[i].desc));
     399           0 :                         strlcpy(sc->sc_lds[i]->xname, dev->dv_xname,
     400             :                             sizeof(sc->sc_lds[i]->xname));
     401           0 :                         sensor_attach(&sc->sensordev, &sc->sensors[i]);
     402             :                 }
     403           0 :                 if (sensor_task_register(sc, ciss_sensors, 10) == NULL)
     404           0 :                         free(sc->sensors, M_DEVBUF,
     405           0 :                             sc->maxunits * sizeof(struct ksensor));
     406             :                 else
     407           0 :                         sensordev_install(&sc->sensordev);
     408           0 :         }
     409             : #endif /* SMALL_KERNEL */
     410             : #endif /* BIO > 0 */
     411             : 
     412           0 :         return 0;
     413           0 : }
     414             : 
     415             : void
     416           0 : ciss_shutdown(void *v)
     417             : {
     418           0 :         struct ciss_softc *sc = v;
     419             : 
     420           0 :         sc->sc_flush = CISS_FLUSH_DISABLE;
     421           0 :         timeout_del(&sc->sc_hb);
     422           0 :         ciss_sync(sc);
     423           0 : }
     424             : 
     425             : void
     426           0 : cissminphys(struct buf *bp, struct scsi_link *sl)
     427             : {
     428             : #if 0   /* TODO */
     429             : #define CISS_MAXFER     (PAGE_SIZE * (sc->maxsg + 1))
     430             :         if (bp->b_bcount > CISS_MAXFER)
     431             :                 bp->b_bcount = CISS_MAXFER;
     432             : #endif
     433           0 :         minphys(bp);
     434           0 : }
     435             : 
     436             : /*
     437             :  * submit a command and optionally wait for completition.
     438             :  * wait arg abuses SCSI_POLL|SCSI_NOSLEEP flags to request
     439             :  * to wait (SCSI_POLL) and to allow tsleep() (!SCSI_NOSLEEP)
     440             :  * instead of busy loop waiting
     441             :  */
     442             : int
     443           0 : ciss_cmd(struct ciss_ccb *ccb, int flags, int wait)
     444             : {
     445           0 :         struct ciss_softc *sc = ccb->ccb_sc;
     446           0 :         struct ciss_cmd *cmd = &ccb->ccb_cmd;
     447             :         struct ciss_ccb *ccb1;
     448           0 :         bus_dmamap_t dmap = ccb->ccb_dmamap;
     449             :         u_int64_t addr;
     450             :         u_int32_t id;
     451             :         int i, tohz, error = 0;
     452             : 
     453           0 :         splassert(IPL_BIO);
     454             : 
     455           0 :         if (ccb->ccb_state != CISS_CCB_READY) {
     456           0 :                 printf("%s: ccb %d not ready state=%b\n", sc->sc_dev.dv_xname,
     457           0 :                     cmd->id, ccb->ccb_state, CISS_CCB_BITS);
     458           0 :                 return (EINVAL);
     459             :         }
     460             : 
     461           0 :         if (ccb->ccb_data) {
     462             :                 bus_dma_segment_t *sgd;
     463             : 
     464           0 :                 if ((error = bus_dmamap_load(sc->dmat, dmap, ccb->ccb_data,
     465             :                     ccb->ccb_len, NULL, flags))) {
     466           0 :                         if (error == EFBIG)
     467           0 :                                 printf("more than %d dma segs\n", sc->maxsg);
     468             :                         else
     469           0 :                                 printf("error %d loading dma map\n", error);
     470           0 :                         if (ccb->ccb_xs) {
     471           0 :                                 ccb->ccb_xs->error = XS_DRIVER_STUFFUP;
     472           0 :                                 scsi_done(ccb->ccb_xs);
     473           0 :                                 ccb->ccb_xs = NULL;
     474           0 :                         }
     475           0 :                         return (error);
     476             :                 }
     477           0 :                 cmd->sgin = dmap->dm_nsegs;
     478             : 
     479           0 :                 sgd = dmap->dm_segs;
     480             :                 CISS_DPRINTF(CISS_D_DMA, ("data=%p/%u<0x%lx/%u",
     481             :                     ccb->ccb_data, ccb->ccb_len, sgd->ds_addr, sgd->ds_len));
     482             : 
     483           0 :                 for (i = 0; i < dmap->dm_nsegs; sgd++, i++) {
     484           0 :                         cmd->sgl[i].addr_lo = htole32(sgd->ds_addr);
     485           0 :                         cmd->sgl[i].addr_hi =
     486           0 :                             htole32((u_int64_t)sgd->ds_addr >> 32);
     487           0 :                         cmd->sgl[i].len = htole32(sgd->ds_len);
     488           0 :                         cmd->sgl[i].flags = htole32(0);
     489             :                         if (i)
     490             :                                 CISS_DPRINTF(CISS_D_DMA,
     491             :                                     (",0x%lx/%u", sgd->ds_addr, sgd->ds_len));
     492             :                 }
     493             : 
     494             :                 CISS_DPRINTF(CISS_D_DMA, ("> "));
     495             : 
     496           0 :                 bus_dmamap_sync(sc->dmat, dmap, 0, dmap->dm_mapsize,
     497             :                     BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
     498           0 :         } else
     499           0 :                 cmd->sgin = 0;
     500           0 :         cmd->sglen = htole16((u_int16_t)cmd->sgin);
     501           0 :         bzero(&ccb->ccb_err, sizeof(ccb->ccb_err));
     502             : 
     503           0 :         bus_dmamap_sync(sc->dmat, sc->cmdmap, 0, sc->cmdmap->dm_mapsize,
     504             :             BUS_DMASYNC_PREWRITE);
     505             : 
     506           0 :         ccb->ccb_state = CISS_CCB_ONQ;
     507             :         CISS_DPRINTF(CISS_D_CMD, ("submit=0x%x ", cmd->id));
     508           0 :         if (sc->cfg.methods & (CISS_METH_FIFO64|CISS_METH_FIFO64_RRO)) {
     509             :                 /*
     510             :                  * Write the upper 32bits immediately before the lower
     511             :                  * 32bits and set bit 63 to indicate 64bit FIFO mode.
     512             :                  */
     513           0 :                 addr = (u_int64_t)ccb->ccb_cmdpa;
     514           0 :                 bus_space_write_4(sc->iot, sc->ioh, CISS_INQ64_HI,
     515             :                     (addr >> 32) | 0x80000000);
     516           0 :                 bus_space_write_4(sc->iot, sc->ioh, CISS_INQ64_LO,
     517             :                     addr & 0x00000000ffffffffULL);
     518           0 :         } else
     519           0 :                 bus_space_write_4(sc->iot, sc->ioh, CISS_INQ, ccb->ccb_cmdpa);
     520             : 
     521           0 :         if (wait & SCSI_POLL) {
     522           0 :                 struct timeval tv;
     523             :                 int etick;
     524             :                 CISS_DPRINTF(CISS_D_CMD, ("waiting "));
     525             : 
     526           0 :                 i = ccb->ccb_xs? ccb->ccb_xs->timeout : 60000;
     527           0 :                 tv.tv_sec = i / 1000;
     528           0 :                 tv.tv_usec = (i % 1000) * 1000;
     529           0 :                 tohz = tvtohz(&tv);
     530           0 :                 if (tohz == 0)
     531             :                         tohz = 1;
     532           0 :                 for (i *= 100, etick = tick + tohz; i--; ) {
     533           0 :                         if (!(wait & SCSI_NOSLEEP)) {
     534           0 :                                 ccb->ccb_state = CISS_CCB_POLL;
     535             :                                 CISS_DPRINTF(CISS_D_CMD, ("tsleep(%d) ", tohz));
     536           0 :                                 if (tsleep(ccb, PRIBIO + 1, "ciss_cmd",
     537           0 :                                     tohz) == EWOULDBLOCK) {
     538             :                                         break;
     539             :                                 }
     540           0 :                                 if (ccb->ccb_state != CISS_CCB_ONQ) {
     541           0 :                                         tohz = etick - tick;
     542           0 :                                         if (tohz <= 0)
     543             :                                                 break;
     544             :                                         CISS_DPRINTF(CISS_D_CMD, ("T"));
     545           0 :                                         continue;
     546             :                                 }
     547             :                                 ccb1 = ccb;
     548           0 :                         } else {
     549           0 :                                 DELAY(10);
     550             : 
     551           0 :                                 if (!(bus_space_read_4(sc->iot, sc->ioh,
     552           0 :                                     CISS_ISR) & sc->iem)) {
     553             :                                         CISS_DPRINTF(CISS_D_CMD, ("N"));
     554           0 :                                         continue;
     555             :                                 }
     556             : 
     557           0 :                                 if (sc->cfg.methods & CISS_METH_FIFO64) {
     558           0 :                                         if (bus_space_read_4(sc->iot, sc->ioh,
     559           0 :                                             CISS_OUTQ64_HI) == 0xffffffff) {
     560             :                                                 CISS_DPRINTF(CISS_D_CMD, ("Q"));
     561           0 :                                                 continue;
     562             :                                         }
     563           0 :                                         id = bus_space_read_4(sc->iot, sc->ioh,
     564             :                                             CISS_OUTQ64_LO);
     565           0 :                                 } else if (sc->cfg.methods &
     566             :                                     CISS_METH_FIFO64_RRO) {
     567           0 :                                         id = bus_space_read_4(sc->iot, sc->ioh,
     568             :                                             CISS_OUTQ64_LO);
     569           0 :                                         if (id == 0xffffffff) {
     570             :                                                 CISS_DPRINTF(CISS_D_CMD, ("Q"));
     571           0 :                                                 continue;
     572             :                                         }
     573           0 :                                         (void)bus_space_read_4(sc->iot,
     574             :                                             sc->ioh, CISS_OUTQ64_HI);
     575           0 :                                 } else {
     576           0 :                                         id = bus_space_read_4(sc->iot, sc->ioh,
     577             :                                             CISS_OUTQ);
     578           0 :                                         if (id == 0xffffffff) {
     579             :                                                 CISS_DPRINTF(CISS_D_CMD, ("Q"));
     580           0 :                                                 continue;
     581             :                                         }
     582             :                                 }
     583             : 
     584             :                                 CISS_DPRINTF(CISS_D_CMD, ("got=0x%x ", id));
     585           0 :                                 ccb1 = sc->ccbs + (id >> 2) * sc->ccblen;
     586           0 :                                 ccb1->ccb_cmd.id = htole32(id);
     587           0 :                                 ccb1->ccb_cmd.id_hi = htole32(0);
     588             :                         }
     589             : 
     590           0 :                         error = ciss_done(ccb1);
     591           0 :                         if (ccb1 == ccb)
     592           0 :                                 return (error);
     593             :                 }
     594             : 
     595             :                 /* if never got a chance to be done above... */
     596           0 :                 ccb->ccb_err.cmd_stat = CISS_ERR_TMO;
     597           0 :                 error = ciss_done(ccb);
     598             : 
     599             :                 CISS_DPRINTF(CISS_D_CMD, ("done %d:%d",
     600             :                     ccb->ccb_err.cmd_stat, ccb->ccb_err.scsi_stat));
     601           0 :         }
     602             : 
     603           0 :         return (error);
     604           0 : }
     605             : 
     606             : int
     607           0 : ciss_done(struct ciss_ccb *ccb)
     608             : {
     609           0 :         struct ciss_softc *sc = ccb->ccb_sc;
     610           0 :         struct scsi_xfer *xs = ccb->ccb_xs;
     611           0 :         struct ciss_cmd *cmd = &ccb->ccb_cmd;
     612             :         ciss_lock_t lock;
     613             :         int error = 0;
     614             : 
     615             :         CISS_DPRINTF(CISS_D_CMD, ("ciss_done(%p) ", ccb));
     616             : 
     617           0 :         if (ccb->ccb_state != CISS_CCB_ONQ) {
     618           0 :                 printf("%s: unqueued ccb %p ready, state=%b\n",
     619           0 :                     sc->sc_dev.dv_xname, ccb, ccb->ccb_state, CISS_CCB_BITS);
     620           0 :                 return 1;
     621             :         }
     622           0 :         lock = CISS_LOCK(sc);
     623           0 :         ccb->ccb_state = CISS_CCB_READY;
     624             : 
     625           0 :         if (ccb->ccb_cmd.id & CISS_CMD_ERR)
     626           0 :                 error = ciss_error(ccb);
     627             : 
     628           0 :         if (ccb->ccb_data) {
     629           0 :                 bus_dmamap_sync(sc->dmat, ccb->ccb_dmamap, 0,
     630             :                     ccb->ccb_dmamap->dm_mapsize, (cmd->flags & CISS_CDB_IN) ?
     631             :                     BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
     632           0 :                 bus_dmamap_unload(sc->dmat, ccb->ccb_dmamap);
     633           0 :         }
     634             : 
     635           0 :         if (xs) {
     636           0 :                 xs->resid = 0;
     637           0 :                 scsi_done(xs);
     638           0 :         }
     639             : 
     640           0 :         CISS_UNLOCK(sc, lock);
     641             : 
     642           0 :         return error;
     643           0 : }
     644             : 
     645             : int
     646           0 : ciss_error(struct ciss_ccb *ccb)
     647             : {
     648           0 :         struct ciss_softc *sc = ccb->ccb_sc;
     649           0 :         struct ciss_error *err = &ccb->ccb_err;
     650           0 :         struct scsi_xfer *xs = ccb->ccb_xs;
     651             :         int rv;
     652             : 
     653           0 :         switch ((rv = letoh16(err->cmd_stat))) {
     654             :         case CISS_ERR_OK:
     655             :                 rv = 0;
     656           0 :                 break;
     657             : 
     658             :         case CISS_ERR_INVCMD:
     659           0 :                 printf("%s: invalid cmd 0x%x: 0x%x is not valid @ 0x%x[%d]\n",
     660           0 :                     sc->sc_dev.dv_xname, ccb->ccb_cmd.id,
     661           0 :                     err->err_info, err->err_type[3], err->err_type[2]);
     662           0 :                 if (xs) {
     663           0 :                         bzero(&xs->sense, sizeof(xs->sense));
     664           0 :                         xs->sense.error_code = SSD_ERRCODE_VALID |
     665             :                             SSD_ERRCODE_CURRENT;
     666           0 :                         xs->sense.flags = SKEY_ILLEGAL_REQUEST;
     667           0 :                         xs->sense.add_sense_code = 0x24; /* ill field */
     668           0 :                         xs->error = XS_SENSE;
     669           0 :                 }
     670             :                 rv = EIO;
     671           0 :                 break;
     672             : 
     673             :         case CISS_ERR_TMO:
     674           0 :                 xs->error = XS_TIMEOUT;
     675             :                 rv = ETIMEDOUT;
     676           0 :                 break;
     677             : 
     678             :         default:
     679           0 :                 if (xs) {
     680           0 :                         switch (err->scsi_stat) {
     681             :                         case SCSI_CHECK:
     682           0 :                                 xs->error = XS_SENSE;
     683           0 :                                 bcopy(&err->sense[0], &xs->sense,
     684             :                                     sizeof(xs->sense));
     685             :                                 rv = EIO;
     686           0 :                                 break;
     687             : 
     688             :                         case SCSI_BUSY:
     689           0 :                                 xs->error = XS_BUSY;
     690             :                                 rv = EBUSY;
     691           0 :                                 break;
     692             : 
     693             :                         default:
     694             :                                 CISS_DPRINTF(CISS_D_ERR, ("%s: "
     695             :                                     "cmd_stat %x scsi_stat 0x%x\n",
     696             :                                     sc->sc_dev.dv_xname, rv, err->scsi_stat));
     697           0 :                                 xs->error = XS_DRIVER_STUFFUP;
     698             :                                 rv = EIO;
     699           0 :                                 break;
     700             :                         }
     701           0 :                         xs->resid = letoh32(err->resid);
     702           0 :                 } else
     703             :                         rv = EIO;
     704             :         }
     705           0 :         ccb->ccb_cmd.id &= htole32(~3);
     706             : 
     707           0 :         return rv;
     708             : }
     709             : 
     710             : int
     711           0 : ciss_inq(struct ciss_softc *sc, struct ciss_inquiry *inq)
     712             : {
     713             :         struct ciss_ccb *ccb;
     714             :         struct ciss_cmd *cmd;
     715             :         int rv;
     716             :         int s;
     717             : 
     718           0 :         ccb = scsi_io_get(&sc->sc_iopool, SCSI_POLL|SCSI_NOSLEEP);
     719           0 :         if (ccb == NULL)
     720           0 :                 return ENOMEM;
     721             : 
     722           0 :         ccb->ccb_len = sizeof(*inq);
     723           0 :         ccb->ccb_data = inq;
     724           0 :         cmd = &ccb->ccb_cmd;
     725           0 :         cmd->tgt = htole32(CISS_CMD_MODE_PERIPH);
     726           0 :         cmd->tgt2 = 0;
     727           0 :         cmd->cdblen = 10;
     728           0 :         cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_IN;
     729           0 :         cmd->tmo = htole16(0);
     730           0 :         bzero(&cmd->cdb[0], sizeof(cmd->cdb));
     731           0 :         cmd->cdb[0] = CISS_CMD_CTRL_GET;
     732           0 :         cmd->cdb[6] = CISS_CMS_CTRL_CTRL;
     733           0 :         cmd->cdb[7] = sizeof(*inq) >> 8;       /* biiiig endian */
     734           0 :         cmd->cdb[8] = sizeof(*inq) & 0xff;
     735             : 
     736           0 :         s = splbio();
     737           0 :         rv = ciss_cmd(ccb, BUS_DMA_NOWAIT, SCSI_POLL|SCSI_NOSLEEP);
     738           0 :         splx(s);
     739             : 
     740           0 :         scsi_io_put(&sc->sc_iopool, ccb);
     741             : 
     742           0 :         return (rv);
     743           0 : }
     744             : 
     745             : int
     746           0 : ciss_ldmap(struct ciss_softc *sc)
     747             : {
     748             :         struct ciss_ccb *ccb;
     749             :         struct ciss_cmd *cmd;
     750             :         struct ciss_ldmap *lmap;
     751             :         ciss_lock_t lock;
     752             :         int total, rv;
     753             : 
     754           0 :         lock = CISS_LOCK_SCRATCH(sc);
     755           0 :         lmap = sc->scratch;
     756           0 :         lmap->size = htobe32(sc->maxunits * sizeof(lmap->map));
     757           0 :         total = sizeof(*lmap) + (sc->maxunits - 1) * sizeof(lmap->map);
     758             : 
     759           0 :         ccb = scsi_io_get(&sc->sc_iopool, SCSI_POLL|SCSI_NOSLEEP);
     760           0 :         if (ccb == NULL) {
     761           0 :                 CISS_UNLOCK_SCRATCH(sc, lock);
     762           0 :                 return ENOMEM;
     763             :         }
     764             : 
     765           0 :         ccb->ccb_len = total;
     766           0 :         ccb->ccb_data = lmap;
     767           0 :         cmd = &ccb->ccb_cmd;
     768           0 :         cmd->tgt = CISS_CMD_MODE_PERIPH;
     769           0 :         cmd->tgt2 = 0;
     770           0 :         cmd->cdblen = 12;
     771           0 :         cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_IN;
     772           0 :         cmd->tmo = htole16(30);
     773           0 :         bzero(&cmd->cdb[0], sizeof(cmd->cdb));
     774           0 :         cmd->cdb[0] = CISS_CMD_LDMAP;
     775           0 :         cmd->cdb[8] = total >> 8;      /* biiiig endian */
     776           0 :         cmd->cdb[9] = total & 0xff;
     777             : 
     778           0 :         rv = ciss_cmd(ccb, BUS_DMA_NOWAIT, SCSI_POLL|SCSI_NOSLEEP);
     779           0 :         scsi_io_put(&sc->sc_iopool, ccb);
     780           0 :         CISS_UNLOCK_SCRATCH(sc, lock);
     781             : 
     782           0 :         if (rv)
     783           0 :                 return rv;
     784             : 
     785             :         CISS_DPRINTF(CISS_D_MISC, ("lmap %x:%x\n",
     786             :             lmap->map[0].tgt, lmap->map[0].tgt2));
     787             : 
     788           0 :         return 0;
     789           0 : }
     790             : 
     791             : int
     792           0 : ciss_sync(struct ciss_softc *sc)
     793             : {
     794             :         struct ciss_ccb *ccb;
     795             :         struct ciss_cmd *cmd;
     796             :         struct ciss_flush *flush;
     797             :         ciss_lock_t lock;
     798             :         int rv;
     799             : 
     800           0 :         lock = CISS_LOCK_SCRATCH(sc);
     801           0 :         flush = sc->scratch;
     802           0 :         bzero(flush, sizeof(*flush));
     803           0 :         flush->flush = sc->sc_flush;
     804             : 
     805           0 :         ccb = scsi_io_get(&sc->sc_iopool, SCSI_POLL|SCSI_NOSLEEP);
     806           0 :         if (ccb == NULL) {
     807           0 :                 CISS_UNLOCK_SCRATCH(sc, lock);
     808           0 :                 return ENOMEM;
     809             :         }
     810             : 
     811           0 :         ccb->ccb_len = sizeof(*flush);
     812           0 :         ccb->ccb_data = flush;
     813           0 :         cmd = &ccb->ccb_cmd;
     814           0 :         cmd->tgt = CISS_CMD_MODE_PERIPH;
     815           0 :         cmd->tgt2 = 0;
     816           0 :         cmd->cdblen = 10;
     817           0 :         cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_OUT;
     818           0 :         cmd->tmo = htole16(0);
     819           0 :         bzero(&cmd->cdb[0], sizeof(cmd->cdb));
     820           0 :         cmd->cdb[0] = CISS_CMD_CTRL_SET;
     821           0 :         cmd->cdb[6] = CISS_CMS_CTRL_FLUSH;
     822           0 :         cmd->cdb[7] = sizeof(*flush) >> 8;     /* biiiig endian */
     823           0 :         cmd->cdb[8] = sizeof(*flush) & 0xff;
     824             : 
     825           0 :         rv = ciss_cmd(ccb, BUS_DMA_NOWAIT, SCSI_POLL|SCSI_NOSLEEP);
     826           0 :         scsi_io_put(&sc->sc_iopool, ccb);
     827           0 :         CISS_UNLOCK_SCRATCH(sc, lock);
     828             : 
     829           0 :         return rv;
     830           0 : }
     831             : 
     832             : void
     833           0 : ciss_scsi_cmd(struct scsi_xfer *xs)
     834             : {
     835           0 :         struct scsi_link *link = xs->sc_link;
     836           0 :         u_int8_t target = link->target;
     837             :         struct ciss_ccb *ccb;
     838             :         struct ciss_cmd *cmd;
     839             :         ciss_lock_t lock;
     840             : 
     841             :         CISS_DPRINTF(CISS_D_CMD, ("ciss_scsi_cmd "));
     842             : 
     843           0 :         if (xs->cmdlen > CISS_MAX_CDB) {
     844             :                 CISS_DPRINTF(CISS_D_CMD, ("CDB too big %p ", xs));
     845           0 :                 bzero(&xs->sense, sizeof(xs->sense));
     846           0 :                 xs->sense.error_code = SSD_ERRCODE_VALID | SSD_ERRCODE_CURRENT;
     847           0 :                 xs->sense.flags = SKEY_ILLEGAL_REQUEST;
     848           0 :                 xs->sense.add_sense_code = 0x20; /* illcmd, 0x24 illfield */
     849           0 :                 xs->error = XS_SENSE;
     850           0 :                 scsi_done(xs);
     851           0 :                 return;
     852             :         }
     853             : 
     854           0 :         xs->error = XS_NOERROR;
     855             : 
     856             :         /* XXX emulate SYNCHRONIZE_CACHE ??? */
     857             : 
     858           0 :         ccb = xs->io;
     859             : 
     860           0 :         cmd = &ccb->ccb_cmd;
     861           0 :         ccb->ccb_len = xs->datalen;
     862           0 :         ccb->ccb_data = xs->data;
     863           0 :         ccb->ccb_xs = xs;
     864           0 :         cmd->tgt = CISS_CMD_MODE_LD | target;
     865           0 :         cmd->tgt2 = 0;
     866           0 :         cmd->cdblen = xs->cmdlen;
     867           0 :         cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL;
     868           0 :         if (xs->flags & SCSI_DATA_IN)
     869           0 :                 cmd->flags |= CISS_CDB_IN;
     870           0 :         else if (xs->flags & SCSI_DATA_OUT)
     871           0 :                 cmd->flags |= CISS_CDB_OUT;
     872           0 :         cmd->tmo = htole16(xs->timeout < 1000? 1 : xs->timeout / 1000);
     873           0 :         bzero(&cmd->cdb[0], sizeof(cmd->cdb));
     874           0 :         bcopy(xs->cmd, &cmd->cdb[0], CISS_MAX_CDB);
     875             : 
     876           0 :         lock = CISS_LOCK(sc);
     877           0 :         ciss_cmd(ccb, BUS_DMA_WAITOK, xs->flags & (SCSI_POLL|SCSI_NOSLEEP));
     878           0 :         CISS_UNLOCK(sc, lock);
     879           0 : }
     880             : 
     881             : int
     882           0 : ciss_intr(void *v)
     883             : {
     884           0 :         struct ciss_softc *sc = v;
     885             :         struct ciss_ccb *ccb;
     886             :         bus_size_t reg;
     887             :         u_int32_t id;
     888             :         int hit = 0;
     889             : 
     890             :         CISS_DPRINTF(CISS_D_INTR, ("intr "));
     891             : 
     892           0 :         if (!(bus_space_read_4(sc->iot, sc->ioh, CISS_ISR) & sc->iem))
     893           0 :                 return 0;
     894             : 
     895           0 :         if (sc->cfg.methods & CISS_METH_FIFO64)
     896           0 :                 reg = CISS_OUTQ64_HI;
     897           0 :         else if (sc->cfg.methods & CISS_METH_FIFO64_RRO)
     898           0 :                 reg = CISS_OUTQ64_LO;
     899             :         else
     900             :                 reg = CISS_OUTQ;
     901           0 :         while ((id = bus_space_read_4(sc->iot, sc->ioh, reg)) != 0xffffffff) {
     902           0 :                 if (reg == CISS_OUTQ64_HI)
     903           0 :                         id = bus_space_read_4(sc->iot, sc->ioh,
     904             :                             CISS_OUTQ64_LO);
     905           0 :                 else if (reg == CISS_OUTQ64_LO)
     906           0 :                         (void)bus_space_read_4(sc->iot, sc->ioh,
     907             :                             CISS_OUTQ64_HI);
     908           0 :                 ccb = sc->ccbs + (id >> 2) * sc->ccblen;
     909           0 :                 ccb->ccb_cmd.id = htole32(id);
     910           0 :                 ccb->ccb_cmd.id_hi = htole32(0); /* ignore the upper 32bits */
     911           0 :                 if (ccb->ccb_state == CISS_CCB_POLL) {
     912           0 :                         ccb->ccb_state = CISS_CCB_ONQ;
     913           0 :                         wakeup(ccb);
     914           0 :                 } else
     915           0 :                         ciss_done(ccb);
     916             : 
     917             :                 hit = 1;
     918             :         }
     919             :         CISS_DPRINTF(CISS_D_INTR, ("exit "));
     920           0 :         return hit;
     921           0 : }
     922             : 
     923             : void
     924           0 : ciss_heartbeat(void *v)
     925             : {
     926           0 :         struct ciss_softc *sc = v;
     927             :         u_int32_t hb;
     928             : 
     929           0 :         hb = bus_space_read_4(sc->iot, sc->cfg_ioh,
     930             :             sc->cfgoff + offsetof(struct ciss_config, heartbeat));
     931           0 :         if (hb == sc->heartbeat) {
     932           0 :                 sc->fibrillation++;
     933             :                 CISS_DPRINTF(CISS_D_ERR, ("%s: fibrillation #%d (value=%d)\n",
     934             :                     sc->sc_dev.dv_xname, sc->fibrillation, hb));
     935           0 :                 if (sc->fibrillation >= 11) {
     936             :                         /* No heartbeat for 33 seconds */
     937           0 :                         panic("%s: dead", sc->sc_dev.dv_xname);    /* XXX reset! */
     938             :                 }
     939             :         } else {
     940           0 :                 sc->heartbeat = hb;
     941           0 :                 if (sc->fibrillation) {
     942             :                         CISS_DPRINTF(CISS_D_ERR, ("%s: "
     943             :                             "fibrillation ended (value=%d)\n",
     944             :                             sc->sc_dev.dv_xname, hb));
     945             :                 }
     946           0 :                 sc->fibrillation = 0;
     947             :         }
     948             : 
     949           0 :         timeout_add_sec(&sc->sc_hb, 3);
     950           0 : }
     951             : 
     952             : int
     953           0 : ciss_scsi_ioctl(struct scsi_link *link, u_long cmd, caddr_t addr, int flag)
     954             : {
     955             : #if NBIO > 0
     956           0 :         return ciss_ioctl(link->adapter_softc, cmd, addr);
     957             : #else
     958             :         return ENOTTY;
     959             : #endif
     960             : }
     961             : 
     962             : #if NBIO > 0
     963             : const int ciss_level[] = { 0, 4, 1, 5, 51, 7 };
     964             : const int ciss_stat[] = { BIOC_SVONLINE, BIOC_SVOFFLINE, BIOC_SVOFFLINE,
     965             :     BIOC_SVDEGRADED, BIOC_SVREBUILD, BIOC_SVREBUILD, BIOC_SVDEGRADED,
     966             :     BIOC_SVDEGRADED, BIOC_SVINVALID, BIOC_SVINVALID, BIOC_SVBUILDING,
     967             :     BIOC_SVOFFLINE, BIOC_SVBUILDING };
     968             : 
     969             : int
     970           0 : ciss_ioctl(struct device *dev, u_long cmd, caddr_t addr)
     971             : {
     972           0 :         struct ciss_softc *sc = (struct ciss_softc *)dev;
     973             :         struct bioc_inq *bi;
     974             :         struct bioc_vol *bv;
     975             :         struct bioc_disk *bd;
     976             :         struct bioc_blink *bb;
     977             :         /* struct bioc_alarm *ba; */
     978             :         /* struct bioc_setstate *bss; */
     979             :         struct ciss_ldid *ldid;
     980             :         struct ciss_ldstat *ldstat;
     981             :         struct ciss_pdid *pdid;
     982             :         struct ciss_blink *blink;
     983             :         struct ciss_ld *ldp;
     984             :         ciss_lock_t lock;
     985             :         u_int8_t drv;
     986             :         int ld, pd, error = 0;
     987             :         u_int blks;
     988             : 
     989           0 :         if (!(sc->sc_flags & CISS_BIO))
     990           0 :                 return ENOTTY;
     991             : 
     992           0 :         lock = CISS_LOCK(sc);
     993           0 :         switch (cmd) {
     994             :         case BIOCINQ:
     995           0 :                 bi = (struct bioc_inq *)addr;
     996           0 :                 strlcpy(bi->bi_dev, sc->sc_dev.dv_xname, sizeof(bi->bi_dev));
     997           0 :                 bi->bi_novol = sc->maxunits;
     998           0 :                 bi->bi_nodisk = sc->ndrives;
     999           0 :                 break;
    1000             : 
    1001             :         case BIOCVOL:
    1002           0 :                 bv = (struct bioc_vol *)addr;
    1003           0 :                 if (bv->bv_volid > sc->maxunits) {
    1004             :                         error = EINVAL;
    1005           0 :                         break;
    1006             :                 }
    1007           0 :                 ldp = sc->sc_lds[bv->bv_volid];
    1008           0 :                 if (!ldp) {
    1009             :                         error = EINVAL;
    1010           0 :                         break;
    1011             :                 }
    1012           0 :                 ldid = sc->scratch;
    1013           0 :                 if ((error = ciss_ldid(sc, bv->bv_volid, ldid)))
    1014             :                         break;
    1015             :                 /* params 30:88:ff:00:00:00:00:00:00:00:00:00:00:00:20:00 */
    1016           0 :                 bv->bv_status = BIOC_SVINVALID;
    1017           0 :                 blks = (u_int)letoh16(ldid->nblocks[1]) << 16 |
    1018           0 :                     letoh16(ldid->nblocks[0]);
    1019           0 :                 bv->bv_size = blks * (uint64_t)letoh16(ldid->blksize);
    1020           0 :                 bv->bv_level = ciss_level[ldid->type];
    1021           0 :                 bv->bv_nodisk = ldp->ndrives;
    1022           0 :                 strlcpy(bv->bv_dev, ldp->xname, sizeof(bv->bv_dev));
    1023           0 :                 strlcpy(bv->bv_vendor, "CISS", sizeof(bv->bv_vendor));
    1024           0 :                 ldstat = sc->scratch;
    1025           0 :                 bzero(ldstat, sizeof(*ldstat));
    1026           0 :                 if ((error = ciss_ldstat(sc, bv->bv_volid, ldstat)))
    1027             :                         break;
    1028           0 :                 bv->bv_percent = -1;
    1029           0 :                 bv->bv_seconds = 0;
    1030           0 :                 if (ldstat->stat < nitems(ciss_stat))
    1031           0 :                         bv->bv_status = ciss_stat[ldstat->stat];
    1032           0 :                 if (bv->bv_status == BIOC_SVREBUILD ||
    1033           0 :                     bv->bv_status == BIOC_SVBUILDING)
    1034           0 :                         bv->bv_percent = (blks -
    1035           0 :                             (((u_int)ldstat->prog[3] << 24) |
    1036           0 :                             ((u_int)ldstat->prog[2] << 16) |
    1037           0 :                             ((u_int)ldstat->prog[1] << 8) |
    1038           0 :                             (u_int)ldstat->prog[0])) * 100ULL / blks;
    1039             :                 break;
    1040             : 
    1041             :         case BIOCDISK:
    1042           0 :                 bd = (struct bioc_disk *)addr;
    1043           0 :                 if (bd->bd_volid > sc->maxunits) {
    1044             :                         error = EINVAL;
    1045           0 :                         break;
    1046             :                 }
    1047           0 :                 ldp = sc->sc_lds[bd->bd_volid];
    1048           0 :                 if (!ldp || (pd = bd->bd_diskid) > ldp->ndrives) {
    1049             :                         error = EINVAL;
    1050           0 :                         break;
    1051             :                 }
    1052           0 :                 ldstat = sc->scratch;
    1053           0 :                 if ((error = ciss_ldstat(sc, bd->bd_volid, ldstat)))
    1054             :                         break;
    1055           0 :                 bd->bd_status = -1;
    1056           0 :                 if (ldstat->stat == CISS_LD_REBLD &&
    1057           0 :                     ldstat->bigrebuild == ldp->tgts[pd])
    1058           0 :                         bd->bd_status = BIOC_SDREBUILD;
    1059           0 :                 if (ciss_bitset(ldp->tgts[pd] & (~CISS_BIGBIT),
    1060             :                     ldstat->bigfailed)) {
    1061           0 :                         bd->bd_status = BIOC_SDFAILED;
    1062           0 :                         bd->bd_size = 0;
    1063           0 :                         bd->bd_channel = (ldp->tgts[pd] & (~CISS_BIGBIT)) /
    1064           0 :                             sc->ndrives;
    1065           0 :                         bd->bd_target = ldp->tgts[pd] % sc->ndrives;
    1066           0 :                         bd->bd_lun = 0;
    1067           0 :                         bd->bd_vendor[0] = '\0';
    1068           0 :                         bd->bd_serial[0] = '\0';
    1069           0 :                         bd->bd_procdev[0] = '\0';
    1070           0 :                 } else {
    1071           0 :                         pdid = sc->scratch;
    1072           0 :                         if ((error = ciss_pdid(sc, ldp->tgts[pd], pdid,
    1073             :                             SCSI_POLL)))
    1074             :                                 break;
    1075           0 :                         if (bd->bd_status < 0) {
    1076           0 :                                 if (pdid->config & CISS_PD_SPARE)
    1077           0 :                                         bd->bd_status = BIOC_SDHOTSPARE;
    1078           0 :                                 else if (pdid->present & CISS_PD_PRESENT)
    1079           0 :                                         bd->bd_status = BIOC_SDONLINE;
    1080             :                                 else
    1081           0 :                                         bd->bd_status = BIOC_SDINVALID;
    1082             :                         }
    1083           0 :                         bd->bd_size = (u_int64_t)letoh32(pdid->nblocks) *
    1084           0 :                             letoh16(pdid->blksz);
    1085           0 :                         bd->bd_channel = pdid->bus;
    1086           0 :                         bd->bd_target = pdid->target;
    1087           0 :                         bd->bd_lun = 0;
    1088           0 :                         strlcpy(bd->bd_vendor, pdid->model,
    1089             :                             sizeof(bd->bd_vendor));
    1090           0 :                         strlcpy(bd->bd_serial, pdid->serial,
    1091             :                             sizeof(bd->bd_serial));
    1092           0 :                         bd->bd_procdev[0] = '\0';
    1093             :                 }
    1094             :                 break;
    1095             : 
    1096             :         case BIOCBLINK:
    1097           0 :                 bb = (struct bioc_blink *)addr;
    1098           0 :                 blink = sc->scratch;
    1099             :                 error = EINVAL;
    1100             :                 /* XXX workaround completely dumb scsi addressing */
    1101           0 :                 for (ld = 0; ld < sc->maxunits; ld++) {
    1102           0 :                         ldp = sc->sc_lds[ld];
    1103           0 :                         if (!ldp)
    1104             :                                 continue;
    1105           0 :                         if (sc->ndrives == 256)
    1106           0 :                                 drv = bb->bb_target;
    1107             :                         else
    1108           0 :                                 drv = CISS_BIGBIT +
    1109           0 :                                     bb->bb_channel * sc->ndrives +
    1110           0 :                                     bb->bb_target;
    1111           0 :                         for (pd = 0; pd < ldp->ndrives; pd++)
    1112           0 :                                 if (ldp->tgts[pd] == drv)
    1113           0 :                                         error = ciss_blink(sc, ld, pd,
    1114           0 :                                             bb->bb_status, blink);
    1115             :                 }
    1116             :                 break;
    1117             : 
    1118             :         case BIOCALARM:
    1119             :         case BIOCSETSTATE:
    1120             :         default:
    1121             :                 CISS_DPRINTF(CISS_D_IOCTL, ("%s: invalid ioctl\n",
    1122             :                     sc->sc_dev.dv_xname));
    1123             :                 error = ENOTTY;
    1124           0 :         }
    1125           0 :         CISS_UNLOCK(sc, lock);
    1126             : 
    1127           0 :         return error;
    1128           0 : }
    1129             : 
    1130             : #ifndef SMALL_KERNEL
    1131             : void
    1132           0 : ciss_sensors(void *v)
    1133             : {
    1134           0 :         struct ciss_softc *sc = v;
    1135             :         struct ciss_ldstat *ldstat;
    1136             :         int i, error;
    1137             : 
    1138           0 :         for (i = 0; i < sc->maxunits; i++) {
    1139           0 :                 ldstat = sc->scratch;
    1140           0 :                 if ((error = ciss_ldstat(sc, i, ldstat))) {
    1141           0 :                         sc->sensors[i].value = 0;
    1142           0 :                         sc->sensors[i].status = SENSOR_S_UNKNOWN;
    1143           0 :                         continue;
    1144             :                 }
    1145             : 
    1146           0 :                 switch (ldstat->stat) {
    1147             :                 case CISS_LD_OK:
    1148           0 :                         sc->sensors[i].value = SENSOR_DRIVE_ONLINE;
    1149           0 :                         sc->sensors[i].status = SENSOR_S_OK;
    1150           0 :                         break;
    1151             : 
    1152             :                 case CISS_LD_DEGRAD:
    1153           0 :                         sc->sensors[i].value = SENSOR_DRIVE_PFAIL;
    1154           0 :                         sc->sensors[i].status = SENSOR_S_WARN;
    1155           0 :                         break;
    1156             : 
    1157             :                 case CISS_LD_EXPND:
    1158             :                 case CISS_LD_QEXPND:
    1159             :                 case CISS_LD_RBLDRD:
    1160             :                 case CISS_LD_REBLD:
    1161           0 :                         sc->sensors[i].value = SENSOR_DRIVE_REBUILD;
    1162           0 :                         sc->sensors[i].status = SENSOR_S_WARN;
    1163           0 :                         break;
    1164             : 
    1165             :                 case CISS_LD_NORDY:
    1166             :                 case CISS_LD_PDINV:
    1167             :                 case CISS_LD_PDUNC:
    1168             :                 case CISS_LD_FAILED:
    1169             :                 case CISS_LD_UNCONF:
    1170           0 :                         sc->sensors[i].value = SENSOR_DRIVE_FAIL;
    1171           0 :                         sc->sensors[i].status = SENSOR_S_CRIT;
    1172           0 :                         break;
    1173             : 
    1174             :                 default:
    1175           0 :                         sc->sensors[i].value = 0;
    1176           0 :                         sc->sensors[i].status = SENSOR_S_UNKNOWN;
    1177           0 :                 }
    1178             :         }
    1179           0 : }
    1180             : #endif /* SMALL_KERNEL */
    1181             : 
    1182             : int
    1183           0 : ciss_ldid(struct ciss_softc *sc, int target, struct ciss_ldid *id)
    1184             : {
    1185             :         struct ciss_ccb *ccb;
    1186             :         struct ciss_cmd *cmd;
    1187             :         int rv;
    1188             :         int s;
    1189             : 
    1190           0 :         ccb = scsi_io_get(&sc->sc_iopool, SCSI_POLL);
    1191           0 :         if (ccb == NULL)
    1192           0 :                 return ENOMEM;
    1193             : 
    1194           0 :         ccb->ccb_len = sizeof(*id);
    1195           0 :         ccb->ccb_data = id;
    1196           0 :         cmd = &ccb->ccb_cmd;
    1197           0 :         cmd->tgt = htole32(CISS_CMD_MODE_PERIPH);
    1198           0 :         cmd->tgt2 = 0;
    1199           0 :         cmd->cdblen = 10;
    1200           0 :         cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_IN;
    1201           0 :         cmd->tmo = htole16(0);
    1202           0 :         bzero(&cmd->cdb[0], sizeof(cmd->cdb));
    1203           0 :         cmd->cdb[0] = CISS_CMD_CTRL_GET;
    1204           0 :         cmd->cdb[5] = target;
    1205           0 :         cmd->cdb[6] = CISS_CMS_CTRL_LDIDEXT;
    1206           0 :         cmd->cdb[7] = sizeof(*id) >> 8;        /* biiiig endian */
    1207           0 :         cmd->cdb[8] = sizeof(*id) & 0xff;
    1208             : 
    1209           0 :         s = splbio();
    1210           0 :         rv = ciss_cmd(ccb, BUS_DMA_NOWAIT, SCSI_POLL);
    1211           0 :         splx(s);
    1212             : 
    1213           0 :         scsi_io_put(&sc->sc_iopool, ccb);
    1214             : 
    1215           0 :         return (rv);
    1216           0 : }
    1217             : 
    1218             : int
    1219           0 : ciss_ldstat(struct ciss_softc *sc, int target, struct ciss_ldstat *stat)
    1220             : {
    1221             :         struct ciss_ccb *ccb;
    1222             :         struct ciss_cmd *cmd;
    1223             :         int rv;
    1224             :         int s;
    1225             : 
    1226           0 :         ccb = scsi_io_get(&sc->sc_iopool, SCSI_POLL);
    1227           0 :         if (ccb == NULL)
    1228           0 :                 return ENOMEM;
    1229             : 
    1230           0 :         ccb->ccb_len = sizeof(*stat);
    1231           0 :         ccb->ccb_data = stat;
    1232           0 :         cmd = &ccb->ccb_cmd;
    1233           0 :         cmd->tgt = htole32(CISS_CMD_MODE_PERIPH);
    1234           0 :         cmd->tgt2 = 0;
    1235           0 :         cmd->cdblen = 10;
    1236           0 :         cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_IN;
    1237           0 :         cmd->tmo = htole16(0);
    1238           0 :         bzero(&cmd->cdb[0], sizeof(cmd->cdb));
    1239           0 :         cmd->cdb[0] = CISS_CMD_CTRL_GET;
    1240           0 :         cmd->cdb[5] = target;
    1241           0 :         cmd->cdb[6] = CISS_CMS_CTRL_LDSTAT;
    1242           0 :         cmd->cdb[7] = sizeof(*stat) >> 8;      /* biiiig endian */
    1243           0 :         cmd->cdb[8] = sizeof(*stat) & 0xff;
    1244             : 
    1245           0 :         s = splbio();
    1246           0 :         rv = ciss_cmd(ccb, BUS_DMA_NOWAIT, SCSI_POLL);
    1247           0 :         splx(s);
    1248             : 
    1249           0 :         scsi_io_put(&sc->sc_iopool, ccb);
    1250             : 
    1251           0 :         return (rv);
    1252           0 : }
    1253             : 
    1254             : int
    1255           0 : ciss_pdid(struct ciss_softc *sc, u_int8_t drv, struct ciss_pdid *id, int wait)
    1256             : {
    1257             :         struct ciss_ccb *ccb;
    1258             :         struct ciss_cmd *cmd;
    1259             :         int rv;
    1260             :         int s;
    1261             : 
    1262           0 :         ccb = scsi_io_get(&sc->sc_iopool, SCSI_POLL);
    1263           0 :         if (ccb == NULL)
    1264           0 :                 return ENOMEM;
    1265             : 
    1266           0 :         ccb->ccb_len = sizeof(*id);
    1267           0 :         ccb->ccb_data = id;
    1268           0 :         cmd = &ccb->ccb_cmd;
    1269           0 :         cmd->tgt = htole32(CISS_CMD_MODE_PERIPH);
    1270           0 :         cmd->tgt2 = 0;
    1271           0 :         cmd->cdblen = 10;
    1272           0 :         cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_IN;
    1273           0 :         cmd->tmo = htole16(0);
    1274           0 :         bzero(&cmd->cdb[0], sizeof(cmd->cdb));
    1275           0 :         cmd->cdb[0] = CISS_CMD_CTRL_GET;
    1276           0 :         cmd->cdb[2] = drv;
    1277           0 :         cmd->cdb[6] = CISS_CMS_CTRL_PDID;
    1278           0 :         cmd->cdb[7] = sizeof(*id) >> 8;        /* biiiig endian */
    1279           0 :         cmd->cdb[8] = sizeof(*id) & 0xff;
    1280             : 
    1281           0 :         s = splbio();
    1282           0 :         rv = ciss_cmd(ccb, BUS_DMA_NOWAIT, wait);
    1283           0 :         splx(s);
    1284             : 
    1285           0 :         scsi_io_put(&sc->sc_iopool, ccb);
    1286             : 
    1287           0 :         return (rv);
    1288           0 : }
    1289             : 
    1290             : 
    1291             : struct ciss_ld *
    1292           0 : ciss_pdscan(struct ciss_softc *sc, int ld)
    1293             : {
    1294             :         struct ciss_pdid *pdid;
    1295             :         struct ciss_ld *ldp;
    1296           0 :         u_int8_t drv, buf[128];
    1297             :         int i, j, k = 0;
    1298             : 
    1299           0 :         pdid = sc->scratch;
    1300           0 :         if (sc->ndrives == 256) {
    1301           0 :                 for (i = 0; i < CISS_BIGBIT; i++)
    1302           0 :                         if (!ciss_pdid(sc, i, pdid, SCSI_NOSLEEP|SCSI_POLL) &&
    1303           0 :                             (pdid->present & CISS_PD_PRESENT))
    1304           0 :                                 buf[k++] = i;
    1305             :         } else
    1306           0 :                 for (i = 0; i < sc->nbus; i++)
    1307           0 :                         for (j = 0; j < sc->ndrives; j++) {
    1308           0 :                                 drv = CISS_BIGBIT + i * sc->ndrives + j;
    1309           0 :                                 if (!ciss_pdid(sc, drv, pdid,
    1310             :                                     SCSI_NOSLEEP|SCSI_POLL))
    1311           0 :                                         buf[k++] = drv;
    1312             :                         }
    1313             : 
    1314           0 :         if (!k)
    1315           0 :                 return NULL;
    1316             : 
    1317           0 :         ldp = malloc(sizeof(*ldp) + (k-1), M_DEVBUF, M_NOWAIT);
    1318           0 :         if (!ldp)
    1319           0 :                 return NULL;
    1320             : 
    1321           0 :         bzero(&ldp->bling, sizeof(ldp->bling));
    1322           0 :         ldp->ndrives = k;
    1323           0 :         bcopy(buf, ldp->tgts, k);
    1324           0 :         return ldp;
    1325           0 : }
    1326             : 
    1327             : int
    1328           0 : ciss_blink(struct ciss_softc *sc, int ld, int pd, int stat,
    1329             :     struct ciss_blink *blink)
    1330             : {
    1331             :         struct ciss_ccb *ccb;
    1332             :         struct ciss_cmd *cmd;
    1333             :         struct ciss_ld *ldp;
    1334             :         int rv;
    1335             :         int s;
    1336             : 
    1337           0 :         if (ld > sc->maxunits)
    1338           0 :                 return EINVAL;
    1339             : 
    1340           0 :         ldp = sc->sc_lds[ld];
    1341           0 :         if (!ldp || pd > ldp->ndrives)
    1342           0 :                 return EINVAL;
    1343             : 
    1344           0 :         ldp->bling.pdtab[ldp->tgts[pd]] = stat == BIOC_SBUNBLINK? 0 :
    1345             :             CISS_BLINK_ALL;
    1346           0 :         bcopy(&ldp->bling, blink, sizeof(*blink));
    1347             : 
    1348           0 :         ccb = scsi_io_get(&sc->sc_iopool, SCSI_POLL);
    1349           0 :         if (ccb == NULL)
    1350           0 :                 return ENOMEM;
    1351             : 
    1352           0 :         ccb->ccb_len = sizeof(*blink);
    1353           0 :         ccb->ccb_data = blink;
    1354           0 :         cmd = &ccb->ccb_cmd;
    1355           0 :         cmd->tgt = htole32(CISS_CMD_MODE_PERIPH);
    1356           0 :         cmd->tgt2 = 0;
    1357           0 :         cmd->cdblen = 10;
    1358           0 :         cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_OUT;
    1359           0 :         cmd->tmo = htole16(0);
    1360           0 :         bzero(&cmd->cdb[0], sizeof(cmd->cdb));
    1361           0 :         cmd->cdb[0] = CISS_CMD_CTRL_SET;
    1362           0 :         cmd->cdb[6] = CISS_CMS_CTRL_PDBLINK;
    1363           0 :         cmd->cdb[7] = sizeof(*blink) >> 8;     /* biiiig endian */
    1364           0 :         cmd->cdb[8] = sizeof(*blink) & 0xff;
    1365             : 
    1366           0 :         s = splbio();
    1367           0 :         rv = ciss_cmd(ccb, BUS_DMA_NOWAIT, SCSI_POLL);
    1368           0 :         splx(s);
    1369             : 
    1370           0 :         scsi_io_put(&sc->sc_iopool, ccb);
    1371             : 
    1372           0 :         return (rv);
    1373           0 : }
    1374             : #endif

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