/* $OpenBSD: ciss.c,v 1.21 2006/09/15 23:47:52 krw Exp $ */ /* * Copyright (c) 2005,2006 Michael Shalayeff * All rights reserved. * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include "bio.h" /* #define CISS_DEBUG */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if NBIO > 0 #include #endif #include #ifdef CISS_DEBUG #define CISS_DPRINTF(m,a) if (ciss_debug & (m)) printf a #define CISS_D_CMD 0x0001 #define CISS_D_INTR 0x0002 #define CISS_D_MISC 0x0004 #define CISS_D_DMA 0x0008 #define CISS_D_IOCTL 0x0010 #define CISS_D_ERR 0x0020 int ciss_debug = 0 /* | CISS_D_CMD */ /* | CISS_D_INTR */ /* | CISS_D_MISC */ /* | CISS_D_DMA */ /* | CISS_D_IOCTL */ /* | CISS_D_ERR */ ; #else #define CISS_DPRINTF(m,a) /* m, a */ #endif struct cfdriver ciss_cd = { NULL, "ciss", DV_DULL }; int ciss_scsi_cmd(struct scsi_xfer *xs); int ciss_scsi_ioctl(struct scsi_link *link, u_long cmd, caddr_t addr, int flag, struct proc *p); void cissminphys(struct buf *bp); struct scsi_adapter ciss_switch = { ciss_scsi_cmd, cissminphys, NULL, NULL, ciss_scsi_ioctl }; struct scsi_device ciss_dev = { NULL, NULL, NULL, NULL }; int ciss_scsi_raw_cmd(struct scsi_xfer *xs); struct scsi_adapter ciss_raw_switch = { ciss_scsi_raw_cmd, cissminphys, NULL, NULL, }; struct scsi_device ciss_raw_dev = { NULL, NULL, NULL, NULL }; #if NBIO > 0 int ciss_ioctl(struct device *, u_long, caddr_t); #endif int ciss_sync(struct ciss_softc *sc); void ciss_heartbeat(void *v); void ciss_shutdown(void *v); void ciss_kthread(void *v); void ciss_sensors(void *); struct ciss_ccb *ciss_get_ccb(struct ciss_softc *sc); void ciss_put_ccb(struct ciss_ccb *ccb); int ciss_cmd(struct ciss_ccb *ccb, int flags, int wait); int ciss_done(struct ciss_ccb *ccb); int ciss_error(struct ciss_ccb *ccb); struct ciss_ld *ciss_pdscan(struct ciss_softc *sc, int ld); int ciss_inq(struct ciss_softc *sc, struct ciss_inquiry *inq); int ciss_ldmap(struct ciss_softc *sc); int ciss_ldid(struct ciss_softc *, int, struct ciss_ldid *); int ciss_ldstat(struct ciss_softc *, int, struct ciss_ldstat *); int ciss_pdid(struct ciss_softc *, u_int8_t, struct ciss_pdid *, int); int ciss_blink(struct ciss_softc *, int, int, int, struct ciss_blink *); struct ciss_ccb * ciss_get_ccb(struct ciss_softc *sc) { struct ciss_ccb *ccb; if ((ccb = TAILQ_LAST(&sc->sc_free_ccb, ciss_queue_head))) { TAILQ_REMOVE(&sc->sc_free_ccb, ccb, ccb_link); ccb->ccb_state = CISS_CCB_READY; } return ccb; } void ciss_put_ccb(struct ciss_ccb *ccb) { struct ciss_softc *sc = ccb->ccb_sc; ccb->ccb_state = CISS_CCB_FREE; TAILQ_INSERT_TAIL(&sc->sc_free_ccb, ccb, ccb_link); } int ciss_attach(struct ciss_softc *sc) { struct scsibus_softc *scsibus; struct ciss_ccb *ccb; struct ciss_cmd *cmd; struct ciss_inquiry *inq; bus_dma_segment_t seg[1]; int error, i, total, rseg, maxfer; ciss_lock_t lock; paddr_t pa; bus_space_read_region_4(sc->iot, sc->cfg_ioh, sc->cfgoff, (u_int32_t *)&sc->cfg, sizeof(sc->cfg) / 4); if (sc->cfg.signature != CISS_SIGNATURE) { printf(": bad sign 0x%08x\n", sc->cfg.signature); return -1; } if (!(sc->cfg.methods & CISS_METH_SIMPL)) { printf(": not simple 0x%08x\n", sc->cfg.methods); return -1; } sc->cfg.rmethod = CISS_METH_SIMPL; sc->cfg.paddr_lim = 0; /* 32bit addrs */ sc->cfg.int_delay = 0; /* disable coalescing */ sc->cfg.int_count = 0; strlcpy(sc->cfg.hostname, "HUMPPA", sizeof(sc->cfg.hostname)); sc->cfg.driverf |= CISS_DRV_PRF; /* enable prefetch */ if (!sc->cfg.maxsg) sc->cfg.maxsg = MAXPHYS / PAGE_SIZE; bus_space_write_region_4(sc->iot, sc->cfg_ioh, sc->cfgoff, (u_int32_t *)&sc->cfg, sizeof(sc->cfg) / 4); bus_space_barrier(sc->iot, sc->cfg_ioh, sc->cfgoff, sizeof(sc->cfg), BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE); bus_space_write_4(sc->iot, sc->ioh, CISS_IDB, CISS_IDB_CFG); bus_space_barrier(sc->iot, sc->ioh, CISS_IDB, 4, BUS_SPACE_BARRIER_WRITE); for (i = 1000; i--; DELAY(1000)) { /* XXX maybe IDB is really 64bit? - hp dl380 needs this */ (void)bus_space_read_4(sc->iot, sc->ioh, CISS_IDB + 4); if (!(bus_space_read_4(sc->iot, sc->ioh, CISS_IDB) & CISS_IDB_CFG)) break; bus_space_barrier(sc->iot, sc->ioh, CISS_IDB, 4, BUS_SPACE_BARRIER_READ); } if (bus_space_read_4(sc->iot, sc->ioh, CISS_IDB) & CISS_IDB_CFG) { printf(": cannot set config\n"); return -1; } bus_space_read_region_4(sc->iot, sc->cfg_ioh, sc->cfgoff, (u_int32_t *)&sc->cfg, sizeof(sc->cfg) / 4); if (!(sc->cfg.amethod & CISS_METH_SIMPL)) { printf(": cannot simplify 0x%08x\n", sc->cfg.amethod); return -1; } /* i'm ready for you and i hope you're ready for me */ for (i = 30000; i--; DELAY(1000)) { if (bus_space_read_4(sc->iot, sc->cfg_ioh, sc->cfgoff + offsetof(struct ciss_config, amethod)) & CISS_METH_READY) break; bus_space_barrier(sc->iot, sc->cfg_ioh, sc->cfgoff + offsetof(struct ciss_config, amethod), 4, BUS_SPACE_BARRIER_READ); } if (!(bus_space_read_4(sc->iot, sc->cfg_ioh, sc->cfgoff + offsetof(struct ciss_config, amethod)) & CISS_METH_READY)) { printf(": she never came ready for me 0x%08x\n", sc->cfg.amethod); return -1; } sc->maxcmd = sc->cfg.maxcmd; sc->maxsg = sc->cfg.maxsg; if (sc->maxsg > MAXPHYS / PAGE_SIZE) sc->maxsg = MAXPHYS / PAGE_SIZE; i = sizeof(struct ciss_ccb) + sizeof(ccb->ccb_cmd.sgl[0]) * (sc->maxsg - 1); for (sc->ccblen = 0x10; sc->ccblen < i; sc->ccblen <<= 1); total = sc->ccblen * sc->maxcmd; if ((error = bus_dmamem_alloc(sc->dmat, total, PAGE_SIZE, 0, sc->cmdseg, 1, &rseg, BUS_DMA_NOWAIT))) { printf(": cannot allocate CCBs (%d)\n", error); return -1; } if ((error = bus_dmamem_map(sc->dmat, sc->cmdseg, rseg, total, (caddr_t *)&sc->ccbs, BUS_DMA_NOWAIT))) { printf(": cannot map CCBs (%d)\n", error); return -1; } bzero(sc->ccbs, total); if ((error = bus_dmamap_create(sc->dmat, total, 1, total, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &sc->cmdmap))) { printf(": cannot create CCBs dmamap (%d)\n", error); bus_dmamem_free(sc->dmat, sc->cmdseg, 1); return -1; } if ((error = bus_dmamap_load(sc->dmat, sc->cmdmap, sc->ccbs, total, NULL, BUS_DMA_NOWAIT))) { printf(": cannot load CCBs dmamap (%d)\n", error); bus_dmamem_free(sc->dmat, sc->cmdseg, 1); bus_dmamap_destroy(sc->dmat, sc->cmdmap); return -1; } TAILQ_INIT(&sc->sc_ccbq); TAILQ_INIT(&sc->sc_ccbdone); TAILQ_INIT(&sc->sc_free_ccb); maxfer = sc->maxsg * PAGE_SIZE; for (i = 0; total; i++, total -= sc->ccblen) { ccb = sc->ccbs + i * sc->ccblen; cmd = &ccb->ccb_cmd; pa = sc->cmdseg[0].ds_addr + i * sc->ccblen; ccb->ccb_sc = sc; ccb->ccb_cmdpa = pa + offsetof(struct ciss_ccb, ccb_cmd); ccb->ccb_state = CISS_CCB_FREE; cmd->id = htole32(i << 2); cmd->id_hi = htole32(0); cmd->sgin = sc->maxsg; cmd->sglen = htole16((u_int16_t)cmd->sgin); cmd->err_len = htole32(sizeof(ccb->ccb_err)); pa += offsetof(struct ciss_ccb, ccb_err); cmd->err_pa = htole64((u_int64_t)pa); if ((error = bus_dmamap_create(sc->dmat, maxfer, sc->maxsg, maxfer, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &ccb->ccb_dmamap))) break; TAILQ_INSERT_TAIL(&sc->sc_free_ccb, ccb, ccb_link); } if (i < sc->maxcmd) { printf(": cannot create ccb#%d dmamap (%d)\n", i, error); if (i == 0) { /* TODO leaking cmd's dmamaps and shitz */ bus_dmamem_free(sc->dmat, sc->cmdseg, 1); bus_dmamap_destroy(sc->dmat, sc->cmdmap); return -1; } } if ((error = bus_dmamem_alloc(sc->dmat, PAGE_SIZE, PAGE_SIZE, 0, seg, 1, &rseg, BUS_DMA_NOWAIT))) { printf(": cannot allocate scratch buffer (%d)\n", error); return -1; } if ((error = bus_dmamem_map(sc->dmat, seg, rseg, PAGE_SIZE, (caddr_t *)&sc->scratch, BUS_DMA_NOWAIT))) { printf(": cannot map scratch buffer (%d)\n", error); return -1; } bzero(sc->scratch, PAGE_SIZE); lock = CISS_LOCK_SCRATCH(sc); inq = sc->scratch; if (ciss_inq(sc, inq)) { printf(": adapter inquiry failed\n"); CISS_UNLOCK_SCRATCH(sc, lock); bus_dmamem_free(sc->dmat, sc->cmdseg, 1); bus_dmamap_destroy(sc->dmat, sc->cmdmap); return -1; } if (!(inq->flags & CISS_INQ_BIGMAP)) { printf(": big map is not supported, flags=%b\n", inq->flags, CISS_INQ_BITS); CISS_UNLOCK_SCRATCH(sc, lock); bus_dmamem_free(sc->dmat, sc->cmdseg, 1); bus_dmamap_destroy(sc->dmat, sc->cmdmap); return -1; } sc->maxunits = inq->numld; sc->nbus = inq->nscsi_bus; sc->ndrives = inq->buswidth; printf(": %d LD%s, HW rev %d, FW %4.4s/%4.4s\n", inq->numld, inq->numld == 1? "" : "s", inq->hw_rev, inq->fw_running, inq->fw_stored); CISS_UNLOCK_SCRATCH(sc, lock); timeout_set(&sc->sc_hb, ciss_heartbeat, sc); timeout_add(&sc->sc_hb, hz * 3); /* map LDs */ if (ciss_ldmap(sc)) { printf("%s: adapter LD map failed\n", sc->sc_dev.dv_xname); bus_dmamem_free(sc->dmat, sc->cmdseg, 1); bus_dmamap_destroy(sc->dmat, sc->cmdmap); return -1; } if (!(sc->sc_lds = malloc(sc->maxunits * sizeof(*sc->sc_lds), M_DEVBUF, M_NOWAIT))) { bus_dmamem_free(sc->dmat, sc->cmdseg, 1); bus_dmamap_destroy(sc->dmat, sc->cmdmap); return -1; } sc->sc_flush = CISS_FLUSH_ENABLE; if (!(sc->sc_sh = shutdownhook_establish(ciss_shutdown, sc))) { printf(": unable to establish shutdown hook\n"); bus_dmamem_free(sc->dmat, sc->cmdseg, 1); bus_dmamap_destroy(sc->dmat, sc->cmdmap); return -1; } #if 0 if (kthread_create(ciss_kthread, sc, NULL, "%s", sc->sc_dev.dv_xname)) { printf(": unable to create kernel thread\n"); shutdownhook_disestablish(sc->sc_sh); bus_dmamem_free(sc->dmat, sc->cmdseg, 1); bus_dmamap_destroy(sc->dmat, sc->cmdmap); return -1; } #endif sc->sc_link.device = &ciss_dev; sc->sc_link.adapter_softc = sc; sc->sc_link.openings = sc->maxcmd / (sc->maxunits? sc->maxunits : 1); #if NBIO > 0 /* XXX Reserve some ccb's for sensor and bioctl. */ if (sc->maxunits < 2 && sc->sc_link.openings > 2) sc->sc_link.openings -= 2; #endif sc->sc_link.adapter = &ciss_switch; sc->sc_link.adapter_target = sc->maxunits; sc->sc_link.adapter_buswidth = sc->maxunits; scsibus = (struct scsibus_softc *)config_found_sm(&sc->sc_dev, &sc->sc_link, scsiprint, NULL); #if 0 sc->sc_link_raw.device = &ciss_raw_dev; sc->sc_link_raw.adapter_softc = sc; sc->sc_link.openings = sc->maxcmd / (sc->maxunits? sc->maxunits : 1); sc->sc_link_raw.adapter = &ciss_raw_switch; sc->sc_link_raw.adapter_target = sc->ndrives; sc->sc_link_raw.adapter_buswidth = sc->ndrives; rawbus = (struct scsibus_softc *)config_found_sm(&sc->sc_dev, &sc->sc_link_raw, scsiprint, NULL); #endif #if NBIO > 0 /* XXX for now we can only deal w/ one volume and need reserved ccbs. */ if (!scsibus || sc->maxunits > 1 || sc->sc_link.openings == sc->maxcmd) return 0; /* now map all the physdevs into their lds */ /* XXX currently we assign all pf 'em into ld#0 */ for (i = 0; i < sc->maxunits; i++) if (!(sc->sc_lds[i] = ciss_pdscan(sc, i))) { shutdownhook_disestablish(sc->sc_sh); bus_dmamem_free(sc->dmat, sc->cmdseg, 1); bus_dmamap_destroy(sc->dmat, sc->cmdmap); return -1; } if (bio_register(&sc->sc_dev, ciss_ioctl) != 0) printf("%s: controller registration failed", sc->sc_dev.dv_xname); sc->sc_flags |= CISS_BIO; sc->sensors = malloc(sizeof(struct sensor) * sc->maxunits, M_DEVBUF, M_NOWAIT); if (sc->sensors) { bzero(sc->sensors, sizeof(struct sensor) * sc->maxunits); for (i = 0; i < sc->maxunits; sensor_add(&sc->sensors[i++])) { sc->sensors[i].type = SENSOR_DRIVE; sc->sensors[i].status = SENSOR_S_UNKNOWN; strlcpy(sc->sensors[i].device, sc->sc_dev.dv_xname, sizeof(sc->sensors[i].device)); strlcpy(sc->sensors[i].desc, ((struct device *) scsibus->sc_link[i][0]->device_softc)->dv_xname, sizeof(sc->sensors[i].desc)); strlcpy(sc->sc_lds[i]->xname, ((struct device *) scsibus->sc_link[i][0]->device_softc)->dv_xname, sizeof(sc->sc_lds[i]->xname)); } if (sensor_task_register(sc, ciss_sensors, 10)) { for (i = sc->maxunits; i--; ) sensor_del(&sc->sensors[i]); free(sc->sensors, M_DEVBUF); } } #endif return 0; } void ciss_shutdown(void *v) { struct ciss_softc *sc = v; sc->sc_flush = CISS_FLUSH_DISABLE; timeout_del(&sc->sc_hb); ciss_sync(sc); } void cissminphys(struct buf *bp) { #if 0 /* TODO */ #define CISS_MAXFER (PAGE_SIZE * (sc->maxsg + 1)) if (bp->b_bcount > CISS_MAXFER) bp->b_bcount = CISS_MAXFER; #endif minphys(bp); } /* * submit a command and optionally wait for completition. * wait arg abuses SCSI_POLL|SCSI_NOSLEEP flags to request * to wait (SCSI_POLL) and to allow tsleep() (!SCSI_NOSLEEP) * instead of busy loop waiting */ int ciss_cmd(struct ciss_ccb *ccb, int flags, int wait) { struct ciss_softc *sc = ccb->ccb_sc; struct ciss_cmd *cmd = &ccb->ccb_cmd; struct ciss_ccb *ccb1; bus_dmamap_t dmap = ccb->ccb_dmamap; u_int32_t id; int i, tohz, error = 0; if (ccb->ccb_state != CISS_CCB_READY) { printf("%s: ccb %d not ready state=%b\n", sc->sc_dev.dv_xname, cmd->id, ccb->ccb_state, CISS_CCB_BITS); return (EINVAL); } if (ccb->ccb_data) { bus_dma_segment_t *sgd; if ((error = bus_dmamap_load(sc->dmat, dmap, ccb->ccb_data, ccb->ccb_len, NULL, flags))) { if (error == EFBIG) printf("more than %d dma segs\n", sc->maxsg); else printf("error %d loading dma map\n", error); ciss_put_ccb(ccb); return (error); } cmd->sgin = dmap->dm_nsegs; sgd = dmap->dm_segs; CISS_DPRINTF(CISS_D_DMA, ("data=%p/%u<0x%lx/%u", ccb->ccb_data, ccb->ccb_len, sgd->ds_addr, sgd->ds_len)); for (i = 0; i < dmap->dm_nsegs; sgd++, i++) { cmd->sgl[i].addr_lo = htole32(sgd->ds_addr); cmd->sgl[i].addr_hi = htole32((u_int64_t)sgd->ds_addr >> 32); cmd->sgl[i].len = htole32(sgd->ds_len); cmd->sgl[i].flags = htole32(0); if (i) CISS_DPRINTF(CISS_D_DMA, (",0x%lx/%u", sgd->ds_addr, sgd->ds_len)); } CISS_DPRINTF(CISS_D_DMA, ("> ")); bus_dmamap_sync(sc->dmat, dmap, 0, dmap->dm_mapsize, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); } else cmd->sgin = 0; cmd->sglen = htole16((u_int16_t)cmd->sgin); bzero(&ccb->ccb_err, sizeof(ccb->ccb_err)); bus_dmamap_sync(sc->dmat, sc->cmdmap, 0, sc->cmdmap->dm_mapsize, BUS_DMASYNC_PREWRITE); if ((wait & (SCSI_POLL|SCSI_NOSLEEP)) == (SCSI_POLL|SCSI_NOSLEEP)) bus_space_write_4(sc->iot, sc->ioh, CISS_IMR, bus_space_read_4(sc->iot, sc->ioh, CISS_IMR) | sc->iem); TAILQ_INSERT_TAIL(&sc->sc_ccbq, ccb, ccb_link); ccb->ccb_state = CISS_CCB_ONQ; CISS_DPRINTF(CISS_D_CMD, ("submit=0x%x ", cmd->id)); bus_space_write_4(sc->iot, sc->ioh, CISS_INQ, ccb->ccb_cmdpa); if (wait & SCSI_POLL) { struct timeval tv; int etick; CISS_DPRINTF(CISS_D_CMD, ("waiting ")); i = ccb->ccb_xs? ccb->ccb_xs->timeout : 60000; tv.tv_sec = i / 1000; tv.tv_usec = (i % 1000) * 1000; tohz = tvtohz(&tv); if (tohz == 0) tohz = 1; for (i *= 100, etick = tick + tohz; i--; ) { if (!(wait & SCSI_NOSLEEP)) { ccb->ccb_state = CISS_CCB_POLL; CISS_DPRINTF(CISS_D_CMD, ("tsleep(%d) ", tohz)); if (tsleep(ccb, PRIBIO + 1, "ciss_cmd", tohz) == EWOULDBLOCK) { break; } if (ccb->ccb_state != CISS_CCB_ONQ) { tohz = etick - tick; if (tohz <= 0) break; CISS_DPRINTF(CISS_D_CMD, ("T")); continue; } ccb1 = ccb; } else { DELAY(10); if (!(bus_space_read_4(sc->iot, sc->ioh, CISS_ISR) & sc->iem)) { CISS_DPRINTF(CISS_D_CMD, ("N")); continue; } if ((id = bus_space_read_4(sc->iot, sc->ioh, CISS_OUTQ)) == 0xffffffff) { CISS_DPRINTF(CISS_D_CMD, ("Q")); continue; } CISS_DPRINTF(CISS_D_CMD, ("got=0x%x ", id)); ccb1 = sc->ccbs + (id >> 2) * sc->ccblen; ccb1->ccb_cmd.id = htole32(id); } error = ciss_done(ccb1); if (ccb1 == ccb) break; } /* if never got a chance to be done above... */ if (ccb->ccb_state != CISS_CCB_FREE) { ccb->ccb_err.cmd_stat = CISS_ERR_TMO; error = ciss_done(ccb); } CISS_DPRINTF(CISS_D_CMD, ("done %d:%d", ccb->ccb_err.cmd_stat, ccb->ccb_err.scsi_stat)); } if ((wait & (SCSI_POLL|SCSI_NOSLEEP)) == (SCSI_POLL|SCSI_NOSLEEP)) bus_space_write_4(sc->iot, sc->ioh, CISS_IMR, bus_space_read_4(sc->iot, sc->ioh, CISS_IMR) & ~sc->iem); return (error); } int ciss_done(struct ciss_ccb *ccb) { struct ciss_softc *sc = ccb->ccb_sc; struct scsi_xfer *xs = ccb->ccb_xs; ciss_lock_t lock; int error = 0; CISS_DPRINTF(CISS_D_CMD, ("ciss_done(%p) ", ccb)); if (ccb->ccb_state != CISS_CCB_ONQ) { printf("%s: unqueued ccb %p ready, state=%b\n", sc->sc_dev.dv_xname, ccb, ccb->ccb_state, CISS_CCB_BITS); return 1; } lock = CISS_LOCK(sc); ccb->ccb_state = CISS_CCB_READY; TAILQ_REMOVE(&sc->sc_ccbq, ccb, ccb_link); if (ccb->ccb_cmd.id & CISS_CMD_ERR) error = ciss_error(ccb); if (ccb->ccb_data) { bus_dmamap_sync(sc->dmat, ccb->ccb_dmamap, 0, ccb->ccb_dmamap->dm_mapsize, (xs->flags & SCSI_DATA_IN) ? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(sc->dmat, ccb->ccb_dmamap); ccb->ccb_xs = NULL; ccb->ccb_data = NULL; } ciss_put_ccb(ccb); if (xs) { xs->resid = 0; xs->flags |= ITSDONE; CISS_DPRINTF(CISS_D_CMD, ("scsi_done(%p) ", xs)); scsi_done(xs); } CISS_UNLOCK(sc, lock); return error; } int ciss_error(struct ciss_ccb *ccb) { struct ciss_softc *sc = ccb->ccb_sc; struct ciss_error *err = &ccb->ccb_err; struct scsi_xfer *xs = ccb->ccb_xs; int rv; switch ((rv = letoh16(err->cmd_stat))) { case CISS_ERR_OK: rv = 0; break; case CISS_ERR_INVCMD: printf("%s: invalid cmd 0x%x: 0x%x is not valid @ 0x%x[%d]\n", sc->sc_dev.dv_xname, ccb->ccb_cmd.id, err->err_info, err->err_type[3], err->err_type[2]); if (xs) { bzero(&xs->sense, sizeof(xs->sense)); xs->sense.error_code = SSD_ERRCODE_VALID | 0x70; xs->sense.flags = SKEY_ILLEGAL_REQUEST; xs->sense.add_sense_code = 0x24; /* ill field */ xs->error = XS_SENSE; } rv = EIO; break; case CISS_ERR_TMO: xs->error = XS_TIMEOUT; rv = ETIMEDOUT; break; default: if (xs) { switch (err->scsi_stat) { case SCSI_CHECK: xs->error = XS_SENSE; bcopy(&err->sense[0], &xs->sense, sizeof(xs->sense)); rv = EIO; break; case SCSI_BUSY: xs->error = XS_BUSY; rv = EBUSY; break; default: CISS_DPRINTF(CISS_D_ERR, ("%s: " "cmd_stat %x scsi_stat 0x%x\n", sc->sc_dev.dv_xname, rv, err->scsi_stat)); xs->error = XS_DRIVER_STUFFUP; rv = EIO; break; } xs->resid = letoh32(err->resid); } else rv = EIO; } ccb->ccb_cmd.id &= htole32(~3); return rv; } int ciss_inq(struct ciss_softc *sc, struct ciss_inquiry *inq) { struct ciss_ccb *ccb; struct ciss_cmd *cmd; ccb = ciss_get_ccb(sc); ccb->ccb_len = sizeof(*inq); ccb->ccb_data = inq; cmd = &ccb->ccb_cmd; cmd->tgt = htole32(CISS_CMD_MODE_PERIPH); cmd->tgt2 = 0; cmd->cdblen = 10; cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_IN; cmd->tmo = htole16(0); bzero(&cmd->cdb[0], sizeof(cmd->cdb)); cmd->cdb[0] = CISS_CMD_CTRL_GET; cmd->cdb[6] = CISS_CMS_CTRL_CTRL; cmd->cdb[7] = sizeof(*inq) >> 8; /* biiiig endian */ cmd->cdb[8] = sizeof(*inq) & 0xff; return ciss_cmd(ccb, BUS_DMA_NOWAIT, SCSI_POLL|SCSI_NOSLEEP); } int ciss_ldmap(struct ciss_softc *sc) { struct ciss_ccb *ccb; struct ciss_cmd *cmd; struct ciss_ldmap *lmap; ciss_lock_t lock; int total, rv; lock = CISS_LOCK_SCRATCH(sc); lmap = sc->scratch; lmap->size = htobe32(sc->maxunits * sizeof(lmap->map)); total = sizeof(*lmap) + (sc->maxunits - 1) * sizeof(lmap->map); ccb = ciss_get_ccb(sc); ccb->ccb_len = total; ccb->ccb_data = lmap; cmd = &ccb->ccb_cmd; cmd->tgt = CISS_CMD_MODE_PERIPH; cmd->tgt2 = 0; cmd->cdblen = 12; cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_IN; cmd->tmo = htole16(30); bzero(&cmd->cdb[0], sizeof(cmd->cdb)); cmd->cdb[0] = CISS_CMD_LDMAP; cmd->cdb[8] = total >> 8; /* biiiig endian */ cmd->cdb[9] = total & 0xff; rv = ciss_cmd(ccb, BUS_DMA_NOWAIT, SCSI_POLL|SCSI_NOSLEEP); CISS_UNLOCK_SCRATCH(sc, lock); if (rv) return rv; CISS_DPRINTF(CISS_D_MISC, ("lmap %x:%x\n", lmap->map[0].tgt, lmap->map[0].tgt2)); return 0; } int ciss_sync(struct ciss_softc *sc) { struct ciss_ccb *ccb; struct ciss_cmd *cmd; struct ciss_flush *flush; ciss_lock_t lock; int rv; lock = CISS_LOCK_SCRATCH(sc); flush = sc->scratch; bzero(flush, sizeof(*flush)); flush->flush = sc->sc_flush; ccb = ciss_get_ccb(sc); ccb->ccb_len = sizeof(*flush); ccb->ccb_data = flush; cmd = &ccb->ccb_cmd; cmd->tgt = CISS_CMD_MODE_PERIPH; cmd->tgt2 = 0; cmd->cdblen = 10; cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_OUT; cmd->tmo = htole16(0); bzero(&cmd->cdb[0], sizeof(cmd->cdb)); cmd->cdb[0] = CISS_CMD_CTRL_SET; cmd->cdb[6] = CISS_CMS_CTRL_FLUSH; cmd->cdb[7] = sizeof(*flush) >> 8; /* biiiig endian */ cmd->cdb[8] = sizeof(*flush) & 0xff; rv = ciss_cmd(ccb, BUS_DMA_NOWAIT, SCSI_POLL|SCSI_NOSLEEP); CISS_UNLOCK_SCRATCH(sc, lock); return rv; } int ciss_scsi_raw_cmd(struct scsi_xfer *xs) /* TODO */ { struct scsi_link *link = xs->sc_link; struct ciss_rawsoftc *rsc = link->adapter_softc; struct ciss_softc *sc = rsc->sc_softc; struct ciss_ccb *ccb; struct ciss_cmd *cmd; ciss_lock_t lock; int error; CISS_DPRINTF(CISS_D_CMD, ("ciss_scsi_raw_cmd ")); if (xs->cmdlen > CISS_MAX_CDB) { CISS_DPRINTF(CISS_D_CMD, ("CDB too big %p ", xs)); bzero(&xs->sense, sizeof(xs->sense)); xs->sense.error_code = SSD_ERRCODE_VALID | 0x70; xs->sense.flags = SKEY_ILLEGAL_REQUEST; xs->sense.add_sense_code = 0x20; /* illcmd, 0x24 illfield */ xs->error = XS_SENSE; scsi_done(xs); return (COMPLETE); } lock = CISS_LOCK(sc); error = 0; xs->error = XS_NOERROR; /* TODO check this target has not yet employed w/ any volume */ ccb = ciss_get_ccb(sc); cmd = &ccb->ccb_cmd; ccb->ccb_len = xs->datalen; ccb->ccb_data = xs->data; ccb->ccb_xs = xs; cmd->cdblen = xs->cmdlen; cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL; if (xs->flags & SCSI_DATA_IN) cmd->flags |= CISS_CDB_IN; else if (xs->flags & SCSI_DATA_OUT) cmd->flags |= CISS_CDB_OUT; cmd->tmo = htole16(xs->timeout < 1000? 1 : xs->timeout / 1000); bzero(&cmd->cdb[0], sizeof(cmd->cdb)); bcopy(xs->cmd, &cmd->cdb[0], CISS_MAX_CDB); if (ciss_cmd(ccb, BUS_DMA_WAITOK, xs->flags & (SCSI_POLL|SCSI_NOSLEEP))) { xs->error = XS_DRIVER_STUFFUP; scsi_done(xs); CISS_UNLOCK(sc, lock); return (COMPLETE); } CISS_UNLOCK(sc, lock); return xs->flags & SCSI_POLL? COMPLETE : SUCCESSFULLY_QUEUED; } int ciss_scsi_cmd(struct scsi_xfer *xs) { struct scsi_link *link = xs->sc_link; struct ciss_softc *sc = link->adapter_softc; u_int8_t target = link->target; struct ciss_ccb *ccb; struct ciss_cmd *cmd; int error; ciss_lock_t lock; CISS_DPRINTF(CISS_D_CMD, ("ciss_scsi_cmd ")); if (xs->cmdlen > CISS_MAX_CDB) { CISS_DPRINTF(CISS_D_CMD, ("CDB too big %p ", xs)); bzero(&xs->sense, sizeof(xs->sense)); xs->sense.error_code = SSD_ERRCODE_VALID | 0x70; xs->sense.flags = SKEY_ILLEGAL_REQUEST; xs->sense.add_sense_code = 0x20; /* illcmd, 0x24 illfield */ xs->error = XS_SENSE; scsi_done(xs); return (COMPLETE); } lock = CISS_LOCK(sc); error = 0; xs->error = XS_NOERROR; /* XXX emulate SYNCHRONIZE_CACHE ??? */ ccb = ciss_get_ccb(sc); cmd = &ccb->ccb_cmd; ccb->ccb_len = xs->datalen; ccb->ccb_data = xs->data; ccb->ccb_xs = xs; cmd->tgt = CISS_CMD_MODE_LD | target; cmd->tgt2 = 0; cmd->cdblen = xs->cmdlen; cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL; if (xs->flags & SCSI_DATA_IN) cmd->flags |= CISS_CDB_IN; else if (xs->flags & SCSI_DATA_OUT) cmd->flags |= CISS_CDB_OUT; cmd->tmo = htole16(xs->timeout < 1000? 1 : xs->timeout / 1000); bzero(&cmd->cdb[0], sizeof(cmd->cdb)); bcopy(xs->cmd, &cmd->cdb[0], CISS_MAX_CDB); if (ciss_cmd(ccb, BUS_DMA_WAITOK, xs->flags & (SCSI_POLL|SCSI_NOSLEEP))) { xs->error = XS_DRIVER_STUFFUP; scsi_done(xs); CISS_UNLOCK(sc, lock); return (COMPLETE); } CISS_UNLOCK(sc, lock); return xs->flags & SCSI_POLL? COMPLETE : SUCCESSFULLY_QUEUED; } int ciss_intr(void *v) { struct ciss_softc *sc = v; struct ciss_ccb *ccb; ciss_lock_t lock; u_int32_t id; int hit = 0; CISS_DPRINTF(CISS_D_INTR, ("intr ")); if (!(bus_space_read_4(sc->iot, sc->ioh, CISS_ISR) & sc->iem)) return 0; lock = CISS_LOCK(sc); while ((id = bus_space_read_4(sc->iot, sc->ioh, CISS_OUTQ)) != 0xffffffff) { ccb = sc->ccbs + (id >> 2) * sc->ccblen; ccb->ccb_cmd.id = htole32(id); if (ccb->ccb_state == CISS_CCB_POLL) { ccb->ccb_state = CISS_CCB_ONQ; wakeup(ccb); } else ciss_done(ccb); hit = 1; } CISS_UNLOCK(sc, lock); CISS_DPRINTF(CISS_D_INTR, ("exit ")); return hit; } void ciss_heartbeat(void *v) { struct ciss_softc *sc = v; u_int32_t hb; hb = bus_space_read_4(sc->iot, sc->cfg_ioh, sc->cfgoff + offsetof(struct ciss_config, heartbeat)); if (hb == sc->heartbeat) panic("%s: dead", sc->sc_dev.dv_xname); /* XXX reset! */ else sc->heartbeat = hb; timeout_add(&sc->sc_hb, hz * 3); } void ciss_kthread(void *v) { struct ciss_softc *sc = v; ciss_lock_t lock; for (;;) { tsleep(sc, PRIBIO, sc->sc_dev.dv_xname, 0); lock = CISS_LOCK(sc); CISS_UNLOCK(sc, lock); } } int ciss_scsi_ioctl(struct scsi_link *link, u_long cmd, caddr_t addr, int flag, struct proc *p) { #if NBIO > 0 return ciss_ioctl(link->adapter_softc, cmd, addr); #else return ENOTTY; #endif } #if NBIO > 0 const int ciss_level[] = { 0, 4, 1, 5, 51, 7 }; const int ciss_stat[] = { BIOC_SVONLINE, BIOC_SVOFFLINE, BIOC_SVOFFLINE, BIOC_SVDEGRADED, BIOC_SVREBUILD, BIOC_SVREBUILD, BIOC_SVDEGRADED, BIOC_SVDEGRADED, BIOC_SVINVALID, BIOC_SVINVALID, BIOC_SVBUILDING, BIOC_SVOFFLINE, BIOC_SVBUILDING }; int ciss_ioctl(struct device *dev, u_long cmd, caddr_t addr) { struct ciss_softc *sc = (struct ciss_softc *)dev; struct bioc_inq *bi; struct bioc_vol *bv; struct bioc_disk *bd; struct bioc_blink *bb; /* struct bioc_alarm *ba; */ /* struct bioc_setstate *bss; */ struct ciss_ldid *ldid; struct ciss_ldstat *ldstat; struct ciss_pdid *pdid; struct ciss_blink *blink; struct ciss_ld *ldp; ciss_lock_t lock; int ld, pd, error = 0; u_int blks; if (!(sc->sc_flags & CISS_BIO)) return ENOTTY; lock = CISS_LOCK(sc); switch (cmd) { case BIOCINQ: bi = (struct bioc_inq *)addr; strlcpy(bi->bi_dev, sc->sc_dev.dv_xname, sizeof(bi->bi_dev)); bi->bi_novol = sc->maxunits; bi->bi_nodisk = sc->ndrives; break; case BIOCVOL: bv = (struct bioc_vol *)addr; if (bv->bv_volid > sc->maxunits) { error = EINVAL; break; } ldp = sc->sc_lds[bv->bv_volid]; ldid = sc->scratch; if ((error = ciss_ldid(sc, bv->bv_volid, ldid))) break; /* params 30:88:ff:00:00:00:00:00:00:00:00:00:00:00:20:00 */ bv->bv_status = BIOC_SVINVALID; blks = (u_int)letoh16(ldid->nblocks[1]) << 16 | letoh16(ldid->nblocks[0]); bv->bv_size = blks * (u_quad_t)letoh16(ldid->blksize); bv->bv_level = ciss_level[ldid->type]; bv->bv_nodisk = ldp->ndrives; strlcpy(bv->bv_dev, ldp->xname, sizeof(bv->bv_dev)); strlcpy(bv->bv_vendor, "CISS", sizeof(bv->bv_vendor)); ldstat = sc->scratch; bzero(ldstat, sizeof(*ldstat)); if ((error = ciss_ldstat(sc, bv->bv_volid, ldstat))) break; bv->bv_percent = -1; bv->bv_seconds = 0; if (ldstat->stat < sizeof(ciss_stat)/sizeof(ciss_stat[0])) bv->bv_status = ciss_stat[ldstat->stat]; if (bv->bv_status == BIOC_SVREBUILD || bv->bv_status == BIOC_SVBUILDING) bv->bv_percent = (blks - (((u_int)ldstat->prog[3] << 24) | ((u_int)ldstat->prog[2] << 16) | ((u_int)ldstat->prog[1] << 8) | (u_int)ldstat->prog[0])) * 100ULL / blks; break; case BIOCDISK: bd = (struct bioc_disk *)addr; if (bd->bd_volid > sc->maxunits) { error = EINVAL; break; } ldp = sc->sc_lds[bd->bd_volid]; if ((pd = bd->bd_diskid) > ldp->ndrives) { error = EINVAL; break; } ldstat = sc->scratch; if ((error = ciss_ldstat(sc, bd->bd_volid, ldstat))) break; bd->bd_status = -1; if (ldstat->bigrebuild == ldp->tgts[pd]) bd->bd_status = BIOC_SDREBUILD; if (ciss_bitset(ldp->tgts[pd] & (~CISS_BIGBIT), ldstat->bigfailed)) { bd->bd_status = BIOC_SDFAILED; bd->bd_size = 0; bd->bd_channel = (ldp->tgts[pd] & (~CISS_BIGBIT)) / sc->ndrives; bd->bd_target = ldp->tgts[pd] % sc->ndrives; bd->bd_lun = 0; bd->bd_vendor[0] = '\0'; bd->bd_serial[0] = '\0'; bd->bd_procdev[0] = '\0'; } else { pdid = sc->scratch; if ((error = ciss_pdid(sc, ldp->tgts[pd], pdid, SCSI_POLL))) break; if (bd->bd_status < 0) { if (pdid->config & CISS_PD_SPARE) bd->bd_status = BIOC_SDHOTSPARE; else if (pdid->present & CISS_PD_PRESENT) bd->bd_status = BIOC_SDONLINE; else bd->bd_status = BIOC_SDINVALID; } bd->bd_size = (u_int64_t)letoh32(pdid->nblocks) * letoh16(pdid->blksz); bd->bd_channel = pdid->bus; bd->bd_target = pdid->target; bd->bd_lun = 0; strlcpy(bd->bd_vendor, pdid->model, sizeof(bd->bd_vendor)); strlcpy(bd->bd_serial, pdid->serial, sizeof(bd->bd_serial)); bd->bd_procdev[0] = '\0'; } break; case BIOCBLINK: bb = (struct bioc_blink *)addr; blink = sc->scratch; error = EINVAL; /* XXX workaround completely dumb scsi addressing */ for (ld = 0; ld < sc->maxunits; ld++) { ldp = sc->sc_lds[ld]; for (pd = 0; pd < ldp->ndrives; pd++) if (ldp->tgts[pd] == (CISS_BIGBIT + bb->bb_channel * sc->ndrives + bb->bb_target)) error = ciss_blink(sc, ld, pd, bb->bb_status, blink); } break; case BIOCALARM: case BIOCSETSTATE: default: CISS_DPRINTF(CISS_D_IOCTL, ("%s: invalid ioctl\n", sc->sc_dev.dv_xname)); error = ENOTTY; } CISS_UNLOCK(sc, lock); return error; } void ciss_sensors(void *v) { struct ciss_softc *sc = v; struct ciss_ldstat *ldstat; int i, error; for (i = 0; i < sc->maxunits; i++) { ldstat = sc->scratch; if ((error = ciss_ldstat(sc, i, ldstat))) { sc->sensors[i].value = 0; sc->sensors[i].status = SENSOR_S_UNKNOWN; continue; } switch (ldstat->stat) { case CISS_LD_OK: sc->sensors[i].value = SENSOR_DRIVE_ONLINE; sc->sensors[i].status = SENSOR_S_OK; break; case CISS_LD_DEGRAD: sc->sensors[i].value = SENSOR_DRIVE_PFAIL; sc->sensors[i].status = SENSOR_S_WARN; break; case CISS_LD_EXPND: case CISS_LD_QEXPND: case CISS_LD_RBLDRD: case CISS_LD_REBLD: sc->sensors[i].value = SENSOR_DRIVE_REBUILD; sc->sensors[i].status = SENSOR_S_WARN; break; case CISS_LD_NORDY: case CISS_LD_PDINV: case CISS_LD_PDUNC: case CISS_LD_FAILED: case CISS_LD_UNCONF: sc->sensors[i].value = SENSOR_DRIVE_FAIL; sc->sensors[i].status = SENSOR_S_CRIT; break; default: sc->sensors[i].value = 0; sc->sensors[i].status = SENSOR_S_UNKNOWN; } } } int ciss_ldid(struct ciss_softc *sc, int target, struct ciss_ldid *id) { struct ciss_ccb *ccb; struct ciss_cmd *cmd; ccb = ciss_get_ccb(sc); if (ccb == NULL) return ENOMEM; ccb->ccb_len = sizeof(*id); ccb->ccb_data = id; ccb->ccb_xs = NULL; cmd = &ccb->ccb_cmd; cmd->tgt = htole32(CISS_CMD_MODE_PERIPH); cmd->tgt2 = 0; cmd->cdblen = 10; cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_IN; cmd->tmo = htole16(0); bzero(&cmd->cdb[0], sizeof(cmd->cdb)); cmd->cdb[0] = CISS_CMD_CTRL_GET; cmd->cdb[5] = target; cmd->cdb[6] = CISS_CMS_CTRL_LDIDEXT; cmd->cdb[7] = sizeof(*id) >> 8; /* biiiig endian */ cmd->cdb[8] = sizeof(*id) & 0xff; return ciss_cmd(ccb, BUS_DMA_NOWAIT, SCSI_POLL); } int ciss_ldstat(struct ciss_softc *sc, int target, struct ciss_ldstat *stat) { struct ciss_ccb *ccb; struct ciss_cmd *cmd; ccb = ciss_get_ccb(sc); if (ccb == NULL) return ENOMEM; ccb->ccb_len = sizeof(*stat); ccb->ccb_data = stat; ccb->ccb_xs = NULL; cmd = &ccb->ccb_cmd; cmd->tgt = htole32(CISS_CMD_MODE_PERIPH); cmd->tgt2 = 0; cmd->cdblen = 10; cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_IN; cmd->tmo = htole16(0); bzero(&cmd->cdb[0], sizeof(cmd->cdb)); cmd->cdb[0] = CISS_CMD_CTRL_GET; cmd->cdb[5] = target; cmd->cdb[6] = CISS_CMS_CTRL_LDSTAT; cmd->cdb[7] = sizeof(*stat) >> 8; /* biiiig endian */ cmd->cdb[8] = sizeof(*stat) & 0xff; return ciss_cmd(ccb, BUS_DMA_NOWAIT, SCSI_POLL); } int ciss_pdid(struct ciss_softc *sc, u_int8_t drv, struct ciss_pdid *id, int wait) { struct ciss_ccb *ccb; struct ciss_cmd *cmd; ccb = ciss_get_ccb(sc); if (ccb == NULL) return ENOMEM; ccb->ccb_len = sizeof(*id); ccb->ccb_data = id; ccb->ccb_xs = NULL; cmd = &ccb->ccb_cmd; cmd->tgt = htole32(CISS_CMD_MODE_PERIPH); cmd->tgt2 = 0; cmd->cdblen = 10; cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_IN; cmd->tmo = htole16(0); bzero(&cmd->cdb[0], sizeof(cmd->cdb)); cmd->cdb[0] = CISS_CMD_CTRL_GET; cmd->cdb[2] = drv; cmd->cdb[6] = CISS_CMS_CTRL_PDID; cmd->cdb[7] = sizeof(*id) >> 8; /* biiiig endian */ cmd->cdb[8] = sizeof(*id) & 0xff; return ciss_cmd(ccb, BUS_DMA_NOWAIT, wait); } struct ciss_ld * ciss_pdscan(struct ciss_softc *sc, int ld) { struct ciss_pdid *pdid; struct ciss_ld *ldp; u_int8_t drv, buf[128]; int i, j, k = 0; pdid = sc->scratch; for (i = 0; i < sc->nbus; i++) for (j = 0; j < sc->ndrives; j++) { drv = CISS_BIGBIT + i * sc->ndrives + j; if (!ciss_pdid(sc, drv, pdid, SCSI_NOSLEEP|SCSI_POLL)) buf[k++] = drv; } if (!k) return NULL; ldp = malloc(sizeof(*ldp) + (k-1), M_DEVBUF, M_NOWAIT); if (!ldp) return NULL; bzero(&ldp->bling, sizeof(ldp->bling)); ldp->ndrives = k; bcopy(buf, ldp->tgts, k); return ldp; } int ciss_blink(struct ciss_softc *sc, int ld, int pd, int stat, struct ciss_blink *blink) { struct ciss_ccb *ccb; struct ciss_cmd *cmd; struct ciss_ld *ldp; if (ld > sc->maxunits) return EINVAL; ldp = sc->sc_lds[ld]; if (pd > ldp->ndrives) return EINVAL; ldp->bling.pdtab[ldp->tgts[pd]] = stat == BIOC_SBUNBLINK? 0 : CISS_BLINK_ALL; bcopy(&ldp->bling, blink, sizeof(*blink)); ccb = ciss_get_ccb(sc); if (ccb == NULL) return ENOMEM; ccb->ccb_len = sizeof(*blink); ccb->ccb_data = blink; ccb->ccb_xs = NULL; cmd = &ccb->ccb_cmd; cmd->tgt = htole32(CISS_CMD_MODE_PERIPH); cmd->tgt2 = 0; cmd->cdblen = 10; cmd->flags = CISS_CDB_CMD | CISS_CDB_SIMPL | CISS_CDB_OUT; cmd->tmo = htole16(0); bzero(&cmd->cdb[0], sizeof(cmd->cdb)); cmd->cdb[0] = CISS_CMD_CTRL_SET; cmd->cdb[6] = CISS_CMS_CTRL_PDBLINK; cmd->cdb[7] = sizeof(*blink) >> 8; /* biiiig endian */ cmd->cdb[8] = sizeof(*blink) & 0xff; return ciss_cmd(ccb, BUS_DMA_NOWAIT, SCSI_POLL); } #endif