/* $OpenBSD: gdt_common.c,v 1.41 2007/10/17 03:21:16 fgsch Exp $ */ /* * Copyright (c) 1999, 2000, 2003 Niklas Hallqvist. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * This driver would not have written if it was not for the hardware donations * from both ICP-Vortex and Öko.neT. I want to thank them for their support. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "bio.h" #ifdef GDT_DEBUG int gdt_maxcmds = GDT_MAXCMDS; #undef GDT_MAXCMDS #define GDT_MAXCMDS gdt_maxcmds #endif #define GDT_DRIVER_VERSION 1 #define GDT_DRIVER_SUBVERSION 2 int gdt_async_event(struct gdt_softc *, int); void gdt_chain(struct gdt_softc *); void gdt_clear_events(struct gdt_softc *); void gdt_copy_internal_data(struct scsi_xfer *, u_int8_t *, size_t); struct scsi_xfer *gdt_dequeue(struct gdt_softc *); void gdt_enqueue(struct gdt_softc *, struct scsi_xfer *, int); void gdt_enqueue_ccb(struct gdt_softc *, struct gdt_ccb *); void gdt_eval_mapping(u_int32_t, int *, int *, int *); int gdt_exec_ccb(struct gdt_ccb *); void gdt_free_ccb(struct gdt_softc *, struct gdt_ccb *); struct gdt_ccb *gdt_get_ccb(struct gdt_softc *, int); void gdt_internal_cache_cmd(struct scsi_xfer *); int gdt_internal_cmd(struct gdt_softc *, u_int8_t, u_int16_t, u_int32_t, u_int32_t, u_int32_t); #if NBIO > 0 int gdt_ioctl(struct device *, u_long, caddr_t); int gdt_ioctl_inq(struct gdt_softc *, struct bioc_inq *); int gdt_ioctl_vol(struct gdt_softc *, struct bioc_vol *); int gdt_ioctl_disk(struct gdt_softc *, struct bioc_disk *); int gdt_ioctl_alarm(struct gdt_softc *, struct bioc_alarm *); int gdt_ioctl_setstate(struct gdt_softc *, struct bioc_setstate *); #endif /* NBIO > 0 */ int gdt_raw_scsi_cmd(struct scsi_xfer *); int gdt_scsi_cmd(struct scsi_xfer *); void gdt_start_ccbs(struct gdt_softc *); int gdt_sync_event(struct gdt_softc *, int, u_int8_t, struct scsi_xfer *); void gdt_timeout(void *); int gdt_wait(struct gdt_softc *, struct gdt_ccb *, int); void gdt_watchdog(void *); struct cfdriver gdt_cd = { NULL, "gdt", DV_DULL }; struct scsi_adapter gdt_switch = { gdt_scsi_cmd, gdtminphys, 0, 0, }; struct scsi_adapter gdt_raw_switch = { gdt_raw_scsi_cmd, gdtminphys, 0, 0, }; struct scsi_device gdt_dev = { NULL, NULL, NULL, NULL }; int gdt_cnt = 0; u_int8_t gdt_polling; u_int8_t gdt_from_wait; struct gdt_softc *gdt_wait_gdt; int gdt_wait_index; #ifdef GDT_DEBUG int gdt_debug = GDT_DEBUG; #endif int gdt_attach(struct gdt_softc *sc) { struct scsibus_attach_args saa; u_int16_t cdev_cnt; int i, id, drv_cyls, drv_hds, drv_secs, error, nsegs; gdt_polling = 1; gdt_from_wait = 0; if (bus_dmamem_alloc(sc->sc_dmat, GDT_SCRATCH_SZ, PAGE_SIZE, 0, &sc->sc_scratch_seg, 1, &nsegs, BUS_DMA_NOWAIT)) panic("%s: bus_dmamem_alloc failed", DEVNAME(sc)); if (bus_dmamem_map(sc->sc_dmat, &sc->sc_scratch_seg, 1, GDT_SCRATCH_SZ, &sc->sc_scratch, BUS_DMA_NOWAIT)) panic("%s: bus_dmamem_map failed", DEVNAME(sc)); gdt_clear_events(sc); TAILQ_INIT(&sc->sc_free_ccb); TAILQ_INIT(&sc->sc_ccbq); TAILQ_INIT(&sc->sc_ucmdq); LIST_INIT(&sc->sc_queue); /* Initialize the ccbs */ for (i = 0; i < GDT_MAXCMDS; i++) { sc->sc_ccbs[i].gc_cmd_index = i + 2; error = bus_dmamap_create(sc->sc_dmat, (GDT_MAXOFFSETS - 1) << PGSHIFT, GDT_MAXOFFSETS, (GDT_MAXOFFSETS - 1) << PGSHIFT, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &sc->sc_ccbs[i].gc_dmamap_xfer); if (error) { printf("%s: cannot create ccb dmamap (%d)", DEVNAME(sc), error); return (1); } (void)gdt_ccb_set_cmd(sc->sc_ccbs + i, GDT_GCF_UNUSED); TAILQ_INSERT_TAIL(&sc->sc_free_ccb, &sc->sc_ccbs[i], gc_chain); } /* Fill in the prototype scsi_link. */ sc->sc_link.adapter_softc = sc; sc->sc_link.adapter = &gdt_switch; sc->sc_link.device = &gdt_dev; /* openings will be filled in later. */ sc->sc_link.adapter_buswidth = (sc->sc_class & GDT_FC) ? GDT_MAXID : GDT_MAX_HDRIVES; sc->sc_link.adapter_target = sc->sc_link.adapter_buswidth; if (!gdt_internal_cmd(sc, GDT_SCREENSERVICE, GDT_INIT, 0, 0, 0)) { printf("screen service initialization error %d\n", sc->sc_status); return (1); } if (!gdt_internal_cmd(sc, GDT_CACHESERVICE, GDT_INIT, GDT_LINUX_OS, 0, 0)) { printf("cache service initialization error %d\n", sc->sc_status); return (1); } cdev_cnt = (u_int16_t)sc->sc_info; /* Detect number of busses */ gdt_enc32(sc->sc_scratch + GDT_IOC_VERSION, GDT_IOC_NEWEST); sc->sc_scratch[GDT_IOC_LIST_ENTRIES] = GDT_MAXBUS; sc->sc_scratch[GDT_IOC_FIRST_CHAN] = 0; sc->sc_scratch[GDT_IOC_LAST_CHAN] = GDT_MAXBUS - 1; gdt_enc32(sc->sc_scratch + GDT_IOC_LIST_OFFSET, GDT_IOC_HDR_SZ); if (gdt_internal_cmd(sc, GDT_CACHESERVICE, GDT_IOCTL, GDT_IOCHAN_RAW_DESC, GDT_INVALID_CHANNEL, GDT_IOC_HDR_SZ + GDT_RAWIOC_SZ)) { sc->sc_bus_cnt = sc->sc_scratch[GDT_IOC_CHAN_COUNT]; for (i = 0; i < sc->sc_bus_cnt; i++) { id = sc->sc_scratch[GDT_IOC_HDR_SZ + i * GDT_RAWIOC_SZ + GDT_RAWIOC_PROC_ID]; sc->sc_bus_id[id] = id < GDT_MAXBUS ? id : 0xff; } } else { /* New method failed, use fallback. */ gdt_enc32(sc->sc_scratch + GDT_GETCH_CHANNEL_NO, i); for (i = 0; i < GDT_MAXBUS; i++) { if (!gdt_internal_cmd(sc, GDT_CACHESERVICE, GDT_IOCTL, GDT_SCSI_CHAN_CNT | GDT_L_CTRL_PATTERN, GDT_IO_CHANNEL | GDT_INVALID_CHANNEL, GDT_GETCH_SZ)) { if (i == 0) { printf("cannot get channel count, " "error %d\n", sc->sc_status); return (1); } break; } sc->sc_bus_id[i] = (sc->sc_scratch[GDT_GETCH_SIOP_ID] < GDT_MAXID) ? sc->sc_scratch[GDT_GETCH_SIOP_ID] : 0xff; } sc->sc_bus_cnt = i; } /* Read cache configuration */ if (!gdt_internal_cmd(sc, GDT_CACHESERVICE, GDT_IOCTL, GDT_CACHE_INFO, GDT_INVALID_CHANNEL, GDT_CINFO_SZ)) { printf("cannot get cache info, error %d\n", sc->sc_status); return (1); } sc->sc_cpar.cp_version = gdt_dec32(sc->sc_scratch + GDT_CPAR_VERSION); sc->sc_cpar.cp_state = gdt_dec16(sc->sc_scratch + GDT_CPAR_STATE); sc->sc_cpar.cp_strategy = gdt_dec16(sc->sc_scratch + GDT_CPAR_STRATEGY); sc->sc_cpar.cp_write_back = gdt_dec16(sc->sc_scratch + GDT_CPAR_WRITE_BACK); sc->sc_cpar.cp_block_size = gdt_dec16(sc->sc_scratch + GDT_CPAR_BLOCK_SIZE); /* Read board information and features */ sc->sc_more_proc = 0; if (gdt_internal_cmd(sc, GDT_CACHESERVICE, GDT_IOCTL, GDT_BOARD_INFO, GDT_INVALID_CHANNEL, GDT_BINFO_SZ)) { /* XXX A lot of these assignments can probably go later */ sc->sc_binfo.bi_ser_no = gdt_dec32(sc->sc_scratch + GDT_BINFO_SER_NO); bcopy(sc->sc_scratch + GDT_BINFO_OEM_ID, sc->sc_binfo.bi_oem_id, sizeof sc->sc_binfo.bi_oem_id); sc->sc_binfo.bi_ep_flags = gdt_dec16(sc->sc_scratch + GDT_BINFO_EP_FLAGS); sc->sc_binfo.bi_proc_id = gdt_dec32(sc->sc_scratch + GDT_BINFO_PROC_ID); sc->sc_binfo.bi_memsize = gdt_dec32(sc->sc_scratch + GDT_BINFO_MEMSIZE); sc->sc_binfo.bi_mem_banks = sc->sc_scratch[GDT_BINFO_MEM_BANKS]; sc->sc_binfo.bi_chan_type = sc->sc_scratch[GDT_BINFO_CHAN_TYPE]; sc->sc_binfo.bi_chan_count = sc->sc_scratch[GDT_BINFO_CHAN_COUNT]; sc->sc_binfo.bi_rdongle_pres = sc->sc_scratch[GDT_BINFO_RDONGLE_PRES]; sc->sc_binfo.bi_epr_fw_ver = gdt_dec32(sc->sc_scratch + GDT_BINFO_EPR_FW_VER); sc->sc_binfo.bi_upd_fw_ver = gdt_dec32(sc->sc_scratch + GDT_BINFO_UPD_FW_VER); sc->sc_binfo.bi_upd_revision = gdt_dec32(sc->sc_scratch + GDT_BINFO_UPD_REVISION); bcopy(sc->sc_scratch + GDT_BINFO_TYPE_STRING, sc->sc_binfo.bi_type_string, sizeof sc->sc_binfo.bi_type_string); bcopy(sc->sc_scratch + GDT_BINFO_RAID_STRING, sc->sc_binfo.bi_raid_string, sizeof sc->sc_binfo.bi_raid_string); sc->sc_binfo.bi_update_pres = sc->sc_scratch[GDT_BINFO_UPDATE_PRES]; sc->sc_binfo.bi_xor_pres = sc->sc_scratch[GDT_BINFO_XOR_PRES]; sc->sc_binfo.bi_prom_type = sc->sc_scratch[GDT_BINFO_PROM_TYPE]; sc->sc_binfo.bi_prom_count = sc->sc_scratch[GDT_BINFO_PROM_COUNT]; sc->sc_binfo.bi_dup_pres = gdt_dec32(sc->sc_scratch + GDT_BINFO_DUP_PRES); sc->sc_binfo.bi_chan_pres = gdt_dec32(sc->sc_scratch + GDT_BINFO_CHAN_PRES); sc->sc_binfo.bi_mem_pres = gdt_dec32(sc->sc_scratch + GDT_BINFO_MEM_PRES); sc->sc_binfo.bi_ft_bus_system = sc->sc_scratch[GDT_BINFO_FT_BUS_SYSTEM]; sc->sc_binfo.bi_subtype_valid = sc->sc_scratch[GDT_BINFO_SUBTYPE_VALID]; sc->sc_binfo.bi_board_subtype = sc->sc_scratch[GDT_BINFO_BOARD_SUBTYPE]; sc->sc_binfo.bi_rampar_pres = sc->sc_scratch[GDT_BINFO_RAMPAR_PRES]; if (gdt_internal_cmd(sc, GDT_CACHESERVICE, GDT_IOCTL, GDT_BOARD_FEATURES, GDT_INVALID_CHANNEL, GDT_BFEAT_SZ)) { sc->sc_bfeat.bf_chaining = sc->sc_scratch[GDT_BFEAT_CHAINING]; sc->sc_bfeat.bf_striping = sc->sc_scratch[GDT_BFEAT_STRIPING]; sc->sc_bfeat.bf_mirroring = sc->sc_scratch[GDT_BFEAT_MIRRORING]; sc->sc_bfeat.bf_raid = sc->sc_scratch[GDT_BFEAT_RAID]; sc->sc_more_proc = 1; } } else { /* XXX Not implemented yet */ } /* Read more information */ if (sc->sc_more_proc) { int bus, j; /* physical drives, channel addresses */ /* step 1: get magical bus number from firmware */ gdt_enc32(sc->sc_scratch + GDT_IOC_VERSION, GDT_IOC_NEWEST); sc->sc_scratch[GDT_IOC_LIST_ENTRIES] = GDT_MAXBUS; sc->sc_scratch[GDT_IOC_FIRST_CHAN] = 0; sc->sc_scratch[GDT_IOC_LAST_CHAN] = GDT_MAXBUS - 1; gdt_enc32(sc->sc_scratch + GDT_IOC_LIST_OFFSET, GDT_IOC_HDR_SZ); if (gdt_internal_cmd(sc, GDT_CACHESERVICE, GDT_IOCTL, GDT_IOCHAN_DESC, GDT_INVALID_CHANNEL, GDT_IOC_HDR_SZ + GDT_IOC_SZ * GDT_MAXBUS)) { GDT_DPRINTF(GDT_D_INFO, ("method 1\n")); for (bus = 0; bus < sc->sc_bus_cnt; bus++) { sc->sc_raw[bus].ra_address = gdt_dec32(sc->sc_scratch + GDT_IOC_HDR_SZ + GDT_IOC_SZ * bus + GDT_IOC_ADDRESS); sc->sc_raw[bus].ra_local_no = gdt_dec8(sc->sc_scratch + GDT_IOC_HDR_SZ + GDT_IOC_SZ * bus + GDT_IOC_LOCAL_NO); GDT_DPRINTF(GDT_D_INFO, ( "bus: %d address: %x local: %x\n", bus, sc->sc_raw[bus].ra_address, sc->sc_raw[bus].ra_local_no)); } } else { GDT_DPRINTF(GDT_D_INFO, ("method 2\n")); for (bus = 0; bus < sc->sc_bus_cnt; bus++) { sc->sc_raw[bus].ra_address = GDT_IO_CHANNEL; sc->sc_raw[bus].ra_local_no = bus; GDT_DPRINTF(GDT_D_INFO, ( "bus: %d address: %x local: %x\n", bus, sc->sc_raw[bus].ra_address, sc->sc_raw[bus].ra_local_no)); } } /* step 2: use magical bus number to get nr of phys disks */ for (bus = 0; bus < sc->sc_bus_cnt; bus++) { gdt_enc32(sc->sc_scratch + GDT_GETCH_CHANNEL_NO, sc->sc_raw[bus].ra_local_no); if (gdt_internal_cmd(sc, GDT_CACHESERVICE, GDT_IOCTL, GDT_SCSI_CHAN_CNT | GDT_L_CTRL_PATTERN, sc->sc_raw[bus].ra_address | GDT_INVALID_CHANNEL, GDT_GETCH_SZ)) { sc->sc_raw[bus].ra_phys_cnt = gdt_dec32(sc->sc_scratch + GDT_GETCH_DRIVE_CNT); GDT_DPRINTF(GDT_D_INFO, ("chan: %d disks: %d\n", bus, sc->sc_raw[bus].ra_phys_cnt)); } /* step 3: get scsi disk nr */ if (sc->sc_raw[bus].ra_phys_cnt > 0) { gdt_enc32(sc->sc_scratch + GDT_GETSCSI_CHAN, sc->sc_raw[bus].ra_local_no); gdt_enc32(sc->sc_scratch + GDT_GETSCSI_CNT, sc->sc_raw[bus].ra_phys_cnt); if (gdt_internal_cmd(sc, GDT_CACHESERVICE, GDT_IOCTL, GDT_SCSI_DR_LIST | GDT_L_CTRL_PATTERN, sc->sc_raw[bus].ra_address | GDT_INVALID_CHANNEL, GDT_GETSCSI_SZ)) for (j = 0; j < sc->sc_raw[bus].ra_phys_cnt; j++) { sc->sc_raw[bus].ra_id_list[j] = gdt_dec32(sc->sc_scratch + GDT_GETSCSI_LIST + GDT_GETSCSI_LIST_SZ * j); GDT_DPRINTF(GDT_D_INFO, (" diskid: %d\n", sc->sc_raw[bus].ra_id_list[j])); } else sc->sc_raw[bus].ra_phys_cnt = 0; } /* add found disks to grand total */ sc->sc_total_disks += sc->sc_raw[bus].ra_phys_cnt; } } /* if (sc->sc_more_proc) */ if (!gdt_internal_cmd(sc, GDT_SCSIRAWSERVICE, GDT_INIT, 0, 0, 0)) { printf("raw service initialization error %d\n", sc->sc_status); return (1); } /* Set/get features raw service (scatter/gather) */ sc->sc_raw_feat = 0; if (gdt_internal_cmd(sc, GDT_SCSIRAWSERVICE, GDT_SET_FEAT, GDT_SCATTER_GATHER, 0, 0)) if (gdt_internal_cmd(sc, GDT_SCSIRAWSERVICE, GDT_GET_FEAT, 0, 0, 0)) sc->sc_raw_feat = sc->sc_info; /* Set/get features cache service (scatter/gather) */ sc->sc_cache_feat = 0; if (gdt_internal_cmd(sc, GDT_CACHESERVICE, GDT_SET_FEAT, 0, GDT_SCATTER_GATHER, 0)) if (gdt_internal_cmd(sc, GDT_CACHESERVICE, GDT_GET_FEAT, 0, 0, 0)) sc->sc_cache_feat = sc->sc_info; /* XXX Linux reserve drives here, potentially */ sc->sc_ndevs = 0; /* Scan for cache devices */ for (i = 0; i < cdev_cnt && i < GDT_MAX_HDRIVES; i++) if (gdt_internal_cmd(sc, GDT_CACHESERVICE, GDT_INFO, i, 0, 0)) { sc->sc_hdr[i].hd_present = 1; sc->sc_hdr[i].hd_size = sc->sc_info; if (sc->sc_hdr[i].hd_size > 0) sc->sc_ndevs++; /* * Evaluate mapping (sectors per head, heads per cyl) */ sc->sc_hdr[i].hd_size &= ~GDT_SECS32; if (sc->sc_info2 == 0) gdt_eval_mapping(sc->sc_hdr[i].hd_size, &drv_cyls, &drv_hds, &drv_secs); else { drv_hds = sc->sc_info2 & 0xff; drv_secs = (sc->sc_info2 >> 8) & 0xff; drv_cyls = sc->sc_hdr[i].hd_size / drv_hds / drv_secs; } sc->sc_hdr[i].hd_heads = drv_hds; sc->sc_hdr[i].hd_secs = drv_secs; /* Round the size */ sc->sc_hdr[i].hd_size = drv_cyls * drv_hds * drv_secs; if (gdt_internal_cmd(sc, GDT_CACHESERVICE, GDT_DEVTYPE, i, 0, 0)) sc->sc_hdr[i].hd_devtype = sc->sc_info; } if (sc->sc_ndevs == 0) sc->sc_link.openings = 0; else sc->sc_link.openings = (GDT_MAXCMDS - GDT_CMD_RESERVE) / sc->sc_ndevs; printf("dpmem %llx %d-bus %d cache device%s\n", (long long)sc->sc_dpmembase, sc->sc_bus_cnt, cdev_cnt, cdev_cnt == 1 ? "" : "s"); printf("%s: ver %x, cache %s, strategy %d, writeback %s, blksz %d\n", DEVNAME(sc), sc->sc_cpar.cp_version, sc->sc_cpar.cp_state ? "on" : "off", sc->sc_cpar.cp_strategy, sc->sc_cpar.cp_write_back ? "on" : "off", sc->sc_cpar.cp_block_size); #if 1 printf("%s: raw feat %x cache feat %x\n", DEVNAME(sc), sc->sc_raw_feat, sc->sc_cache_feat); #endif #if NBIO > 0 if (bio_register(&sc->sc_dev, gdt_ioctl) != 0) panic("%s: controller registration failed", DEVNAME(sc)); #endif gdt_cnt++; bzero(&saa, sizeof(saa)); saa.saa_sc_link = &sc->sc_link; config_found(&sc->sc_dev, &saa, scsiprint); sc->sc_raw_link = malloc(sc->sc_bus_cnt * sizeof (struct scsi_link), M_DEVBUF, M_NOWAIT | M_ZERO); if (sc->sc_raw_link == NULL) panic("gdt_attach"); for (i = 0; i < sc->sc_bus_cnt; i++) { /* Fill in the prototype scsi_link. */ sc->sc_raw_link[i].adapter_softc = sc; sc->sc_raw_link[i].adapter = &gdt_raw_switch; sc->sc_raw_link[i].adapter_target = 7; sc->sc_raw_link[i].device = &gdt_dev; sc->sc_raw_link[i].openings = 4; /* XXX a guess */ sc->sc_raw_link[i].adapter_buswidth = (sc->sc_class & GDT_FC) ? GDT_MAXID : 16; /* XXX */ bzero(&saa, sizeof(saa)); saa.saa_sc_link = &sc->sc_raw_link[i]; config_found(&sc->sc_dev, &saa, scsiprint); } gdt_polling = 0; return (0); } void gdt_eval_mapping(u_int32_t size, int *cyls, int *heads, int *secs) { *cyls = size / GDT_HEADS / GDT_SECS; if (*cyls < GDT_MAXCYLS) { *heads = GDT_HEADS; *secs = GDT_SECS; } else { /* Too high for 64 * 32 */ *cyls = size / GDT_MEDHEADS / GDT_MEDSECS; if (*cyls < GDT_MAXCYLS) { *heads = GDT_MEDHEADS; *secs = GDT_MEDSECS; } else { /* Too high for 127 * 63 */ *cyls = size / GDT_BIGHEADS / GDT_BIGSECS; *heads = GDT_BIGHEADS; *secs = GDT_BIGSECS; } } } /* * Insert a command into the driver queue, either at the front or at the tail. * It's ok to overload the freelist link as these structures are never on * the freelist at this time. */ void gdt_enqueue(struct gdt_softc *sc, struct scsi_xfer *xs, int infront) { if (infront || LIST_FIRST(&sc->sc_queue) == NULL) { if (LIST_FIRST(&sc->sc_queue) == NULL) sc->sc_queuelast = xs; LIST_INSERT_HEAD(&sc->sc_queue, xs, free_list); return; } LIST_INSERT_AFTER(sc->sc_queuelast, xs, free_list); sc->sc_queuelast = xs; } /* * Pull a command off the front of the driver queue. */ struct scsi_xfer * gdt_dequeue(struct gdt_softc *sc) { struct scsi_xfer *xs; xs = LIST_FIRST(&sc->sc_queue); if (xs == NULL) return (NULL); LIST_REMOVE(xs, free_list); if (LIST_FIRST(&sc->sc_queue) == NULL) sc->sc_queuelast = NULL; return (xs); } /* * Start a SCSI operation on a cache device. * XXX Polled operation is not yet complete. What kind of locking do we need? */ int gdt_scsi_cmd(struct scsi_xfer *xs) { struct scsi_link *link = xs->sc_link; struct gdt_softc *sc = link->adapter_softc; u_int8_t target = link->target; struct gdt_ccb *ccb; #if 0 struct gdt_ucmd *ucmd; #endif u_int32_t blockno, blockcnt; struct scsi_rw *rw; struct scsi_rw_big *rwb; bus_dmamap_t xfer; int error, retval = SUCCESSFULLY_QUEUED; int s; GDT_DPRINTF(GDT_D_CMD, ("gdt_scsi_cmd ")); xs->error = XS_NOERROR; if (target >= GDT_MAX_HDRIVES || !sc->sc_hdr[target].hd_present || link->lun != 0) { /* * XXX Should be XS_SENSE but that would require setting up a * faked sense too. */ xs->error = XS_DRIVER_STUFFUP; xs->flags |= ITSDONE; s = splbio(); scsi_done(xs); splx(s); return (COMPLETE); } s = splbio(); /* Don't double enqueue if we came from gdt_chain. */ if (xs != LIST_FIRST(&sc->sc_queue)) gdt_enqueue(sc, xs, 0); while ((xs = gdt_dequeue(sc)) != NULL) { xs->error = XS_NOERROR; ccb = NULL; link = xs->sc_link; target = link->target; if (!gdt_polling && !(xs->flags & SCSI_POLL) && sc->sc_test_busy(sc)) { /* * Put it back in front. XXX Should we instead * set xs->error to XS_BUSY? */ gdt_enqueue(sc, xs, 1); break; } switch (xs->cmd->opcode) { case TEST_UNIT_READY: case REQUEST_SENSE: case INQUIRY: case MODE_SENSE: case START_STOP: case READ_CAPACITY: #if 0 case VERIFY: #endif gdt_internal_cache_cmd(xs); xs->flags |= ITSDONE; scsi_done(xs); goto ready; case PREVENT_ALLOW: GDT_DPRINTF(GDT_D_CMD, ("PREVENT/ALLOW ")); /* XXX Not yet implemented */ xs->error = XS_NOERROR; xs->flags |= ITSDONE; scsi_done(xs); goto ready; default: GDT_DPRINTF(GDT_D_CMD, ("unknown opc %d ", xs->cmd->opcode)); /* XXX Not yet implemented */ xs->error = XS_DRIVER_STUFFUP; xs->flags |= ITSDONE; scsi_done(xs); goto ready; case READ_COMMAND: case READ_BIG: case WRITE_COMMAND: case WRITE_BIG: case SYNCHRONIZE_CACHE: /* * A new command chain, start from the beginning. */ sc->sc_cmd_off = 0; if (xs->cmd->opcode != SYNCHRONIZE_CACHE) { /* A read or write operation. */ if (xs->cmdlen == 6) { rw = (struct scsi_rw *)xs->cmd; blockno = _3btol(rw->addr) & (SRW_TOPADDR << 16 | 0xffff); blockcnt = rw->length ? rw->length : 0x100; } else { rwb = (struct scsi_rw_big *)xs->cmd; blockno = _4btol(rwb->addr); blockcnt = _2btol(rwb->length); } if (blockno >= sc->sc_hdr[target].hd_size || blockno + blockcnt > sc->sc_hdr[target].hd_size) { printf( "%s: out of bounds %u-%u >= %u\n", DEVNAME(sc), blockno, blockcnt, sc->sc_hdr[target].hd_size); /* * XXX Should be XS_SENSE but that * would require setting up a faked * sense too. */ xs->error = XS_DRIVER_STUFFUP; xs->flags |= ITSDONE; scsi_done(xs); goto ready; } } ccb = gdt_get_ccb(sc, xs->flags); /* * We are out of commands, try again in a little while. */ if (ccb == NULL) { splx(s); return (TRY_AGAIN_LATER); } ccb->gc_blockno = blockno; ccb->gc_blockcnt = blockcnt; ccb->gc_xs = xs; ccb->gc_timeout = xs->timeout; ccb->gc_service = GDT_CACHESERVICE; gdt_ccb_set_cmd(ccb, GDT_GCF_SCSI); if (xs->cmd->opcode != SYNCHRONIZE_CACHE) { xfer = ccb->gc_dmamap_xfer; error = bus_dmamap_load(sc->sc_dmat, xfer, xs->data, xs->datalen, NULL, (xs->flags & SCSI_NOSLEEP) ? BUS_DMA_NOWAIT : BUS_DMA_WAITOK); if (error) { printf("%s: gdt_scsi_cmd: ", DEVNAME(sc)); if (error == EFBIG) printf( "more than %d dma segs\n", GDT_MAXOFFSETS); else printf("error %d " "loading dma map\n", error); gdt_free_ccb(sc, ccb); xs->error = XS_DRIVER_STUFFUP; xs->flags |= ITSDONE; scsi_done(xs); goto ready; } bus_dmamap_sync(sc->sc_dmat, xfer, 0, xfer->dm_mapsize, (xs->flags & SCSI_DATA_IN) ? BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); } gdt_enqueue_ccb(sc, ccb); /* XXX what if enqueue did not start a transfer? */ if (gdt_polling || (xs->flags & SCSI_POLL)) { if (!gdt_wait(sc, ccb, ccb->gc_timeout)) { splx(s); printf("%s: command %d timed out\n", DEVNAME(sc), ccb->gc_cmd_index); return (TRY_AGAIN_LATER); } xs->flags |= ITSDONE; scsi_done(xs); } } ready: /* * Don't process the queue if we are polling. */ if (xs->flags & SCSI_POLL) { retval = COMPLETE; break; } } splx(s); return (retval); } /* XXX Currently only for cacheservice, returns 0 if busy */ int gdt_exec_ccb(struct gdt_ccb *ccb) { struct scsi_xfer *xs = ccb->gc_xs; struct scsi_link *link = xs->sc_link; struct gdt_softc *sc = link->adapter_softc; u_int8_t target = link->target; u_int32_t sg_canz; bus_dmamap_t xfer; int i; #if 1 /* XXX */ static int __level = 0; if (__level++ > 0) panic("level > 0"); #endif GDT_DPRINTF(GDT_D_CMD, ("gdt_exec_ccb(%p, %p) ", xs, ccb)); sc->sc_cmd_cnt = 0; /* * XXX Yeah I know it's an always-true condition, but that may change * later. */ if (sc->sc_cmd_cnt == 0) sc->sc_set_sema0(sc); gdt_enc32(sc->sc_cmd + GDT_CMD_COMMANDINDEX, ccb->gc_cmd_index); gdt_enc32(sc->sc_cmd + GDT_CMD_BOARDNODE, GDT_LOCALBOARD); gdt_enc16(sc->sc_cmd + GDT_CMD_UNION + GDT_CACHE_DEVICENO, target); switch (xs->cmd->opcode) { case PREVENT_ALLOW: case SYNCHRONIZE_CACHE: if (xs->cmd->opcode == PREVENT_ALLOW) { /* XXX PREVENT_ALLOW support goes here */ } else { GDT_DPRINTF(GDT_D_CMD, ("SYNCHRONIZE CACHE tgt %d ", target)); sc->sc_cmd[GDT_CMD_OPCODE] = GDT_FLUSH; } gdt_enc32(sc->sc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKNO, 1); sg_canz = 0; break; case WRITE_COMMAND: case WRITE_BIG: /* XXX WRITE_THR could be supported too */ sc->sc_cmd[GDT_CMD_OPCODE] = GDT_WRITE; break; case READ_COMMAND: case READ_BIG: sc->sc_cmd[GDT_CMD_OPCODE] = GDT_READ; break; } if (xs->cmd->opcode != PREVENT_ALLOW && xs->cmd->opcode != SYNCHRONIZE_CACHE) { gdt_enc32(sc->sc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKNO, ccb->gc_blockno); gdt_enc32(sc->sc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKCNT, ccb->gc_blockcnt); xfer = ccb->gc_dmamap_xfer; if (sc->sc_cache_feat & GDT_SCATTER_GATHER) { gdt_enc32( sc->sc_cmd + GDT_CMD_UNION + GDT_CACHE_DESTADDR, 0xffffffff); for (i = 0; i < xfer->dm_nsegs; i++) { gdt_enc32(sc->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST + i * GDT_SG_SZ + GDT_SG_PTR, xfer->dm_segs[i].ds_addr); gdt_enc32(sc->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST + i * GDT_SG_SZ + GDT_SG_LEN, xfer->dm_segs[i].ds_len); GDT_DPRINTF(GDT_D_IO, ("#%d va %p pa %p len %x\n", i, buf, xfer->dm_segs[i].ds_addr, xfer->dm_segs[i].ds_len)); } sg_canz = xfer->dm_nsegs; gdt_enc32( sc->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST + sg_canz * GDT_SG_SZ + GDT_SG_LEN, 0); } else { /* XXX Hardly correct */ gdt_enc32( sc->sc_cmd + GDT_CMD_UNION + GDT_CACHE_DESTADDR, xfer->dm_segs[0].ds_addr); sg_canz = 0; } } gdt_enc32(sc->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_CANZ, sg_canz); sc->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_CACHE_SG_LST + sg_canz * GDT_SG_SZ, sizeof (u_int32_t)); if (sc->sc_cmd_cnt > 0 && sc->sc_cmd_off + sc->sc_cmd_len + GDT_DPMEM_COMMAND_OFFSET > sc->sc_ic_all_size) { printf("%s: DPMEM overflow\n", DEVNAME(sc)); gdt_free_ccb(sc, ccb); xs->error = XS_BUSY; #if 1 /* XXX */ __level--; #endif return (0); } sc->sc_copy_cmd(sc, ccb); sc->sc_release_event(sc, ccb); xs->error = XS_NOERROR; xs->resid = 0; #if 1 /* XXX */ __level--; #endif return (1); } void gdt_copy_internal_data(struct scsi_xfer *xs, u_int8_t *data, size_t size) { size_t copy_cnt; GDT_DPRINTF(GDT_D_MISC, ("gdt_copy_internal_data ")); if (!xs->datalen) printf("uio move not yet supported\n"); else { copy_cnt = MIN(size, xs->datalen); bcopy(data, xs->data, copy_cnt); } } /* Emulated SCSI operation on cache device */ void gdt_internal_cache_cmd(struct scsi_xfer *xs) { struct scsi_link *link = xs->sc_link; struct gdt_softc *sc = link->adapter_softc; struct scsi_inquiry_data inq; struct scsi_sense_data sd; struct scsi_read_cap_data rcd; u_int8_t target = link->target; GDT_DPRINTF(GDT_D_CMD, ("gdt_internal_cache_cmd ")); switch (xs->cmd->opcode) { case TEST_UNIT_READY: case START_STOP: #if 0 case VERIFY: #endif GDT_DPRINTF(GDT_D_CMD, ("opc %d tgt %d ", xs->cmd->opcode, target)); break; case REQUEST_SENSE: GDT_DPRINTF(GDT_D_CMD, ("REQUEST SENSE tgt %d ", target)); bzero(&sd, sizeof sd); sd.error_code = 0x70; sd.segment = 0; sd.flags = SKEY_NO_SENSE; gdt_enc32(sd.info, 0); sd.extra_len = 0; gdt_copy_internal_data(xs, (u_int8_t *)&sd, sizeof sd); break; case INQUIRY: GDT_DPRINTF(GDT_D_CMD, ("INQUIRY tgt %d devtype %x ", target, sc->sc_hdr[target].hd_devtype)); bzero(&inq, sizeof inq); inq.device = (sc->sc_hdr[target].hd_devtype & 4) ? T_CDROM : T_DIRECT; inq.dev_qual2 = (sc->sc_hdr[target].hd_devtype & 1) ? SID_REMOVABLE : 0; inq.version = 2; inq.response_format = 2; inq.additional_length = 32; strlcpy(inq.vendor, "ICP ", sizeof inq.vendor); snprintf(inq.product, sizeof inq.product, "Host drive #%02d", target); strlcpy(inq.revision, " ", sizeof inq.revision); gdt_copy_internal_data(xs, (u_int8_t *)&inq, sizeof inq); break; case READ_CAPACITY: GDT_DPRINTF(GDT_D_CMD, ("READ CAPACITY tgt %d ", target)); bzero(&rcd, sizeof rcd); _lto4b(sc->sc_hdr[target].hd_size - 1, rcd.addr); _lto4b(GDT_SECTOR_SIZE, rcd.length); gdt_copy_internal_data(xs, (u_int8_t *)&rcd, sizeof rcd); break; default: GDT_DPRINTF(GDT_D_CMD, ("unsupported scsi command %#x tgt %d ", xs->cmd->opcode, target)); xs->error = XS_DRIVER_STUFFUP; return; } xs->error = XS_NOERROR; } /* Start a raw SCSI operation */ int gdt_raw_scsi_cmd(struct scsi_xfer *xs) { struct scsi_link *link = xs->sc_link; struct gdt_softc *sc = link->adapter_softc; struct gdt_ccb *ccb; int s; GDT_DPRINTF(GDT_D_CMD, ("gdt_raw_scsi_cmd ")); if (xs->cmdlen > 12 /* XXX create #define */) { GDT_DPRINTF(GDT_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; s = splbio(); scsi_done(xs); splx(s); return (COMPLETE); } if ((ccb = gdt_get_ccb(sc, xs->flags)) == NULL) { GDT_DPRINTF(GDT_D_CMD, ("no ccb available for %p ", xs)); xs->error = XS_DRIVER_STUFFUP; s = splbio(); scsi_done(xs); splx(s); return (COMPLETE); } xs->error = XS_DRIVER_STUFFUP; xs->flags |= ITSDONE; s = splbio(); scsi_done(xs); gdt_free_ccb(sc, ccb); splx(s); return (COMPLETE); } void gdt_clear_events(struct gdt_softc *sc) { GDT_DPRINTF(GDT_D_MISC, ("gdt_clear_events(%p) ", sc)); /* XXX To be implemented */ } int gdt_async_event(struct gdt_softc *sc, int service) { GDT_DPRINTF(GDT_D_INTR, ("gdt_async_event(%p, %d) ", sc, service)); if (service == GDT_SCREENSERVICE) { /* XXX To be implemented */ } else { /* XXX To be implemented */ } return (0); } int gdt_sync_event(struct gdt_softc *sc, int service, u_int8_t index, struct scsi_xfer *xs) { GDT_DPRINTF(GDT_D_INTR, ("gdt_sync_event(%p, %d, %d, %p) ", sc, service, index, xs)); if (service == GDT_SCREENSERVICE) { GDT_DPRINTF(GDT_D_INTR, ("service == GDT_SCREENSERVICE ")); /* XXX To be implemented */ return (0); } else { switch (sc->sc_status) { case GDT_S_OK: GDT_DPRINTF(GDT_D_INTR, ("sc_status == GDT_S_OK ")); /* XXX To be implemented */ break; case GDT_S_BSY: GDT_DPRINTF(GDT_D_INTR, ("sc_status == GDT_S_BSY ")); /* XXX To be implemented */ return (2); default: GDT_DPRINTF(GDT_D_INTR, ("sc_status is %d ", sc->sc_status)); /* XXX To be implemented */ return (0); } } return (1); } int gdt_intr(void *arg) { struct gdt_softc *sc = arg; struct gdt_intr_ctx ctx; int chain = 1; int sync_val = 0; struct scsi_xfer *xs; int prev_cmd; struct gdt_ccb *ccb; int s; GDT_DPRINTF(GDT_D_INTR, ("gdt_intr(%p) ", sc)); /* If polling and we were not called from gdt_wait, just return */ if (gdt_polling && !gdt_from_wait) return (0); if (!gdt_polling) s = splbio(); ctx.istatus = sc->sc_get_status(sc); if (!ctx.istatus) { if (!gdt_polling) splx(s); sc->sc_status = GDT_S_NO_STATUS; return (0); } gdt_wait_index = 0; ctx.service = ctx.info2 = 0; sc->sc_intr(sc, &ctx); sc->sc_status = ctx.cmd_status; sc->sc_info = ctx.info; sc->sc_info2 = ctx.info2; if (gdt_from_wait) { gdt_wait_gdt = sc; gdt_wait_index = ctx.istatus; } switch (ctx.istatus) { case GDT_ASYNCINDEX: gdt_async_event(sc, ctx.service); goto finish; case GDT_SPEZINDEX: printf("%s: uninitialized or unknown service (%d %d)\n", DEVNAME(sc), ctx.info, ctx.info2); chain = 0; goto finish; } ccb = &sc->sc_ccbs[ctx.istatus - 2]; xs = ccb->gc_xs; if (!gdt_polling) timeout_del(&xs->stimeout); ctx.service = ccb->gc_service; prev_cmd = ccb->gc_flags & GDT_GCF_CMD_MASK; if (xs && xs->cmd->opcode != PREVENT_ALLOW && xs->cmd->opcode != SYNCHRONIZE_CACHE) { bus_dmamap_sync(sc->sc_dmat, ccb->gc_dmamap_xfer, 0, ccb->gc_dmamap_xfer->dm_mapsize, (xs->flags & SCSI_DATA_IN) ? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(sc->sc_dmat, ccb->gc_dmamap_xfer); } gdt_free_ccb(sc, ccb); switch (prev_cmd) { case GDT_GCF_UNUSED: /* XXX Not yet implemented */ chain = 0; goto finish; case GDT_GCF_INTERNAL: chain = 0; goto finish; } sync_val = gdt_sync_event(sc, ctx.service, ctx.istatus, xs); finish: if (!gdt_polling) splx(s); switch (sync_val) { case 1: xs->flags |= ITSDONE; scsi_done(xs); break; case 2: gdt_enqueue(sc, xs, 0); } if (chain) gdt_chain(sc); return (1); } void gdtminphys(struct buf *bp) { GDT_DPRINTF(GDT_D_MISC, ("gdtminphys(0x%x) ", bp)); /* As this is way more than MAXPHYS it's really not necessary. */ if ((GDT_MAXOFFSETS - 1) * PAGE_SIZE < MAXPHYS && bp->b_bcount > ((GDT_MAXOFFSETS - 1) * PAGE_SIZE)) bp->b_bcount = ((GDT_MAXOFFSETS - 1) * PAGE_SIZE); minphys(bp); } int gdt_wait(struct gdt_softc *sc, struct gdt_ccb *ccb, int timeout) { int rv = 0; GDT_DPRINTF(GDT_D_MISC, ("gdt_wait(%p, %p, %d) ", sc, ccb, timeout)); gdt_from_wait = 1; do { if (gdt_intr(sc) && sc == gdt_wait_gdt && ccb->gc_cmd_index == gdt_wait_index) { rv = 1; break; } DELAY(1); } while (--timeout); gdt_from_wait = 0; while (sc->sc_test_busy(sc)) DELAY(0); /* XXX correct? */ return (rv); } int gdt_internal_cmd(struct gdt_softc *sc, u_int8_t service, u_int16_t opcode, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) { int retries; struct gdt_ccb *ccb; GDT_DPRINTF(GDT_D_CMD, ("gdt_internal_cmd(%p, %d, %d, %d, %d, %d) ", sc, service, opcode, arg1, arg2, arg3)); bzero(sc->sc_cmd, GDT_CMD_SZ); for (retries = GDT_RETRIES; ; ) { ccb = gdt_get_ccb(sc, SCSI_NOSLEEP); if (ccb == NULL) { printf("%s: no free command index found\n", DEVNAME(sc)); return (0); } ccb->gc_service = service; gdt_ccb_set_cmd(ccb, GDT_GCF_INTERNAL); sc->sc_set_sema0(sc); gdt_enc32(sc->sc_cmd + GDT_CMD_COMMANDINDEX, ccb->gc_cmd_index); gdt_enc16(sc->sc_cmd + GDT_CMD_OPCODE, opcode); gdt_enc32(sc->sc_cmd + GDT_CMD_BOARDNODE, GDT_LOCALBOARD); switch (service) { case GDT_CACHESERVICE: if (opcode == GDT_IOCTL) { gdt_enc32(sc->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_SUBFUNC, arg1); gdt_enc32(sc->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_CHANNEL, arg2); gdt_enc16(sc->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_PARAM_SIZE, (u_int16_t)arg3); gdt_enc32(sc->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_P_PARAM, sc->sc_scratch_seg.ds_addr); } else { gdt_enc16(sc->sc_cmd + GDT_CMD_UNION + GDT_CACHE_DEVICENO, (u_int16_t)arg1); gdt_enc32(sc->sc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKNO, arg2); } break; case GDT_SCSIRAWSERVICE: gdt_enc32(sc->sc_cmd + GDT_CMD_UNION + GDT_RAW_DIRECTION, arg1); sc->sc_cmd[GDT_CMD_UNION + GDT_RAW_BUS] = (u_int8_t)arg2; sc->sc_cmd[GDT_CMD_UNION + GDT_RAW_TARGET] = (u_int8_t)arg3; sc->sc_cmd[GDT_CMD_UNION + GDT_RAW_LUN] = (u_int8_t)(arg3 >> 8); } sc->sc_cmd_len = GDT_CMD_SZ; sc->sc_cmd_off = 0; sc->sc_cmd_cnt = 0; sc->sc_copy_cmd(sc, ccb); sc->sc_release_event(sc, ccb); DELAY(20); if (!gdt_wait(sc, ccb, GDT_POLL_TIMEOUT)) return (0); if (sc->sc_status != GDT_S_BSY || --retries == 0) break; DELAY(1); } return (sc->sc_status == GDT_S_OK); } struct gdt_ccb * gdt_get_ccb(struct gdt_softc *sc, int flags) { struct gdt_ccb *ccb; int s; GDT_DPRINTF(GDT_D_QUEUE, ("gdt_get_ccb(%p, 0x%x) ", sc, flags)); s = splbio(); for (;;) { ccb = TAILQ_FIRST(&sc->sc_free_ccb); if (ccb != NULL) break; if (flags & SCSI_NOSLEEP) goto bail_out; tsleep(&sc->sc_free_ccb, PRIBIO, "gdt_ccb", 0); } TAILQ_REMOVE(&sc->sc_free_ccb, ccb, gc_chain); bail_out: splx(s); return (ccb); } void gdt_free_ccb(struct gdt_softc *sc, struct gdt_ccb *ccb) { int s; GDT_DPRINTF(GDT_D_QUEUE, ("gdt_free_ccb(%p, %p) ", sc, ccb)); s = splbio(); TAILQ_INSERT_HEAD(&sc->sc_free_ccb, ccb, gc_chain); /* If the free list was empty, wake up potential waiters. */ if (TAILQ_NEXT(ccb, gc_chain) == NULL) wakeup(&sc->sc_free_ccb); splx(s); } void gdt_enqueue_ccb(struct gdt_softc *sc, struct gdt_ccb *ccb) { GDT_DPRINTF(GDT_D_QUEUE, ("gdt_enqueue_ccb(%p, %p) ", sc, ccb)); timeout_set(&ccb->gc_xs->stimeout, gdt_timeout, ccb); TAILQ_INSERT_TAIL(&sc->sc_ccbq, ccb, gc_chain); gdt_start_ccbs(sc); } void gdt_start_ccbs(struct gdt_softc *sc) { struct gdt_ccb *ccb; struct scsi_xfer *xs; GDT_DPRINTF(GDT_D_QUEUE, ("gdt_start_ccbs(%p) ", sc)); while ((ccb = TAILQ_FIRST(&sc->sc_ccbq)) != NULL) { xs = ccb->gc_xs; if (ccb->gc_flags & GDT_GCF_WATCHDOG) timeout_del(&xs->stimeout); if (gdt_exec_ccb(ccb) == 0) { ccb->gc_flags |= GDT_GCF_WATCHDOG; timeout_set(&ccb->gc_xs->stimeout, gdt_watchdog, ccb); timeout_add(&xs->stimeout, (GDT_WATCH_TIMEOUT * hz) / 1000); break; } TAILQ_REMOVE(&sc->sc_ccbq, ccb, gc_chain); if ((xs->flags & SCSI_POLL) == 0) { timeout_set(&ccb->gc_xs->stimeout, gdt_timeout, ccb); timeout_add(&xs->stimeout, (ccb->gc_timeout * hz) / 1000); } } } void gdt_chain(struct gdt_softc *sc) { GDT_DPRINTF(GDT_D_INTR, ("gdt_chain(%p) ", sc)); if (LIST_FIRST(&sc->sc_queue)) gdt_scsi_cmd(LIST_FIRST(&sc->sc_queue)); } void gdt_timeout(void *arg) { struct gdt_ccb *ccb = arg; struct scsi_link *link = ccb->gc_xs->sc_link; struct gdt_softc *sc = link->adapter_softc; int s; sc_print_addr(link); printf("timed out\n"); /* XXX Test for multiple timeouts */ ccb->gc_xs->error = XS_TIMEOUT; s = splbio(); gdt_enqueue_ccb(sc, ccb); splx(s); } void gdt_watchdog(void *arg) { struct gdt_ccb *ccb = arg; struct scsi_link *link = ccb->gc_xs->sc_link; struct gdt_softc *sc = link->adapter_softc; int s; s = splbio(); ccb->gc_flags &= ~GDT_GCF_WATCHDOG; gdt_start_ccbs(sc); splx(s); } #if NBIO > 0 int gdt_ioctl(struct device *dev, u_long cmd, caddr_t addr) { struct gdt_softc *sc = (struct gdt_softc *)dev; int error = 0; GDT_DPRINTF(GDT_D_IOCTL, ("%s: ioctl ", DEVNAME(sc))); switch (cmd) { case BIOCINQ: GDT_DPRINTF(GDT_D_IOCTL, ("inq ")); error = gdt_ioctl_inq(sc, (struct bioc_inq *)addr); break; case BIOCVOL: GDT_DPRINTF(GDT_D_IOCTL, ("vol ")); error = gdt_ioctl_vol(sc, (struct bioc_vol *)addr); break; case BIOCDISK: GDT_DPRINTF(GDT_D_IOCTL, ("disk ")); error = gdt_ioctl_disk(sc, (struct bioc_disk *)addr); break; case BIOCALARM: GDT_DPRINTF(GDT_D_IOCTL, ("alarm ")); error = gdt_ioctl_alarm(sc, (struct bioc_alarm *)addr); break; case BIOCSETSTATE: GDT_DPRINTF(GDT_D_IOCTL, ("setstate ")); error = gdt_ioctl_setstate(sc, (struct bioc_setstate *)addr); break; default: GDT_DPRINTF(GDT_D_IOCTL, (" invalid ioctl\n")); error = EINVAL; } return (error); } int gdt_ioctl_inq(struct gdt_softc *sc, struct bioc_inq *bi) { bi->bi_novol = sc->sc_ndevs; bi->bi_nodisk = sc->sc_total_disks; strlcpy(bi->bi_dev, DEVNAME(sc), sizeof(bi->bi_dev)); return (0); } int gdt_ioctl_vol(struct gdt_softc *sc, struct bioc_vol *bv) { return (1); /* XXX not yet */ } int gdt_ioctl_disk(struct gdt_softc *sc, struct bioc_disk *bd) { return (1); /* XXX not yet */ } int gdt_ioctl_alarm(struct gdt_softc *sc, struct bioc_alarm *ba) { return (1); /* XXX not yet */ } int gdt_ioctl_setstate(struct gdt_softc *sc, struct bioc_setstate *bs) { return (1); /* XXX not yet */ } #if 0 int gdt_ioctl(struct device *dev, u_long cmd, caddr_t addr) { int error = 0; struct gdt_dummy *dummy; switch (cmd) { case GDT_IOCTL_DUMMY: dummy = (struct gdt_dummy *)addr; printf("%s: GDT_IOCTL_DUMMY %d\n", dev->dv_xname, dummy->x++); break; case GDT_IOCTL_GENERAL: { gdt_ucmd_t *ucmd; struct gdt_softc *sc = (struct gdt_softc *)dev; int s; ucmd = (gdt_ucmd_t *)addr; s = splbio(); TAILQ_INSERT_TAIL(&sc->sc_ucmdq, ucmd, links); ucmd->complete_flag = FALSE; splx(s); gdt_chain(sc); if (!ucmd->complete_flag) (void)tsleep((void *)ucmd, PCATCH | PRIBIO, "gdtucw", 0); break; } case GDT_IOCTL_DRVERS: ((gdt_drvers_t *)addr)->vers = (GDT_DRIVER_VERSION << 8) | GDT_DRIVER_SUBVERSION; break; case GDT_IOCTL_CTRCNT: ((gdt_ctrcnt_t *)addr)->cnt = gdt_cnt; break; #ifdef notyet case GDT_IOCTL_CTRTYPE: { gdt_ctrt_t *p; struct gdt_softc *sc = (struct gdt_softc *)dev; p = (gdt_ctrt_t *)addr; p->oem_id = 0x8000; p->type = 0xfd; p->info = (sc->sc_bus << 8) | (sc->sc_slot << 3); p->ext_type = 0x6000 | sc->sc_subdevice; p->device_id = sc->sc_device; p->sub_device_id = sc->sc_subdevice; break; } #endif case GDT_IOCTL_OSVERS: { gdt_osv_t *p; p = (gdt_osv_t *)addr; p->oscode = 10; p->version = osrelease[0] - '0'; if (osrelease[1] == '.') p->subversion = osrelease[2] - '0'; else p->subversion = 0; if (osrelease[3] == '.') p->revision = osrelease[4] - '0'; else p->revision = 0; strlcpy(p->name, ostype, sizeof p->name); break; } #ifdef notyet case GDT_IOCTL_EVENT: { gdt_event_t *p; int s; p = (gdt_event_t *)addr; if (p->erase == 0xff) { if (p->dvr.event_source == GDT_ES_TEST) p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.test); else if (p->dvr.event_source == GDT_ES_DRIVER) p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.driver); else if (p->dvr.event_source == GDT_ES_SYNC) p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.sync); else p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.async); s = splbio(); gdt_store_event(p->dvr.event_source, p->dvr.event_idx, &p->dvr.event_data); splx(s); } else if (p->erase == 0xfe) { s = splbio(); gdt_clear_events(); splx(s); } else if (p->erase == 0) { p->handle = gdt_read_event(p->handle, &p->dvr); } else { gdt_readapp_event((u_int8_t)p->erase, &p->dvr); } break; } #endif case GDT_IOCTL_STATIST: #if 0 bcopy(&gdt_stat, (gdt_statist_t *)addr, sizeof gdt_stat); #else error = EOPNOTSUPP; #endif break; default: error = EINVAL; } return (error); } #endif /* 0 */ #endif /* NBIO > 0 */