/*- * Copyright (c) 1998 - 2003 Søren Schmidt * 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, * without modification, immediately at the beginning of the file. * 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. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * 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. */ #include __FBSDID("$FreeBSD$"); #include "opt_ata.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* device structures */ static d_open_t ast_open; static d_close_t ast_close; static d_ioctl_t ast_ioctl; static d_strategy_t ast_strategy; static struct cdevsw ast_cdevsw = { .d_open = ast_open, .d_close = ast_close, .d_read = physread, .d_write = physwrite, .d_ioctl = ast_ioctl, .d_strategy = ast_strategy, .d_name = "ast", .d_maj = 119, .d_flags = D_TAPE | D_TRACKCLOSE | D_NOGIANT, }; /* prototypes */ static void ast_detach(struct ata_device *); static void ast_start(struct ata_device *); static int ast_sense(struct ast_softc *); static void ast_describe(struct ast_softc *); static void ast_done(struct ata_request *); static int ast_mode_sense(struct ast_softc *, int, void *, int); static int ast_mode_select(struct ast_softc *, void *, int); static int ast_write_filemark(struct ast_softc *, u_int8_t); static int ast_read_position(struct ast_softc *, int, struct ast_readposition *); static int ast_space(struct ast_softc *, u_int8_t, int32_t); static int ast_locate(struct ast_softc *, int, u_int32_t); static int ast_prevent_allow(struct ast_softc *stp, int); static int ast_load_unload(struct ast_softc *, u_int8_t); static int ast_rewind(struct ast_softc *); static int ast_erase(struct ast_softc *); static int ast_test_ready(struct ata_device *); static int ast_wait_dsc(struct ata_device *, int); /* internal vars */ static u_int32_t ast_lun_map = 0; static u_int64_t ast_total = 0; static MALLOC_DEFINE(M_AST, "AST driver", "ATAPI tape driver buffers"); void ast_attach(struct ata_device *atadev) { struct ast_softc *stp; struct ast_readposition position; dev_t dev; stp = malloc(sizeof(struct ast_softc), M_AST, M_NOWAIT | M_ZERO); if (!stp) { ata_prtdev(atadev, "out of memory\n"); return; } stp->device = atadev; stp->lun = ata_get_lun(&ast_lun_map); ata_set_name(atadev, "ast", stp->lun); bioq_init(&stp->queue); mtx_init(&stp->queue_mtx, "ATAPI TAPE bioqueue lock", MTX_DEF, 0); if (ast_sense(stp)) { free(stp, M_AST); return; } if (!strcmp(atadev->param->model, "OnStream DI-30")) { struct ast_transferpage transfer; struct ast_identifypage identify; stp->flags |= F_ONSTREAM; bzero(&transfer, sizeof(struct ast_transferpage)); ast_mode_sense(stp, ATAPI_TAPE_TRANSFER_PAGE, &transfer, sizeof(transfer)); bzero(&identify, sizeof(struct ast_identifypage)); ast_mode_sense(stp, ATAPI_TAPE_IDENTIFY_PAGE, &identify, sizeof(identify)); strncpy(identify.ident, "FBSD", 4); ast_mode_select(stp, &identify, sizeof(identify)); ast_read_position(stp, 0, &position); } stp->stats = devstat_new_entry("ast", stp->lun, DEV_BSIZE, DEVSTAT_NO_ORDERED_TAGS, DEVSTAT_TYPE_SEQUENTIAL | DEVSTAT_TYPE_IF_IDE, DEVSTAT_PRIORITY_TAPE); dev = make_dev(&ast_cdevsw, 2 * stp->lun, UID_ROOT, GID_OPERATOR, 0640, "ast%d", stp->lun); dev->si_drv1 = stp; if (atadev->channel->dma) dev->si_iosize_max = atadev->channel->dma->max_iosize; else dev->si_iosize_max = DFLTPHYS; stp->dev1 = dev; dev = make_dev(&ast_cdevsw, 2 * stp->lun + 1, UID_ROOT, GID_OPERATOR, 0640, "nast%d", stp->lun); dev->si_drv1 = stp; if (atadev->channel->dma) dev->si_iosize_max = atadev->channel->dma->max_iosize; else dev->si_iosize_max = DFLTPHYS; stp->dev2 = dev; /* use DMA if allowed and if drive/controller supports it */ if (atapi_dma && atadev->channel->dma && (atadev->param->config & ATA_DRQ_MASK) != ATA_DRQ_INTR) atadev->setmode(atadev, ATA_DMA_MAX); else atadev->setmode(atadev, ATA_PIO_MAX); /* setup the function ptrs */ atadev->detach = ast_detach; atadev->start = ast_start; atadev->softc = stp; atadev->flags |= ATA_D_MEDIA_CHANGED; /* announce we are here */ ast_describe(stp); } static void ast_detach(struct ata_device *atadev) { struct ast_softc *stp = atadev->softc; mtx_lock(&stp->queue_mtx); bioq_flush(&stp->queue, NULL, ENXIO); mtx_unlock(&stp->queue_mtx); destroy_dev(stp->dev1); destroy_dev(stp->dev2); devstat_remove_entry(stp->stats); ata_prtdev(atadev, "WARNING - removed from configuration\n"); ata_free_name(atadev); ata_free_lun(&ast_lun_map, stp->lun); atadev->attach = NULL; atadev->detach = NULL; atadev->start = NULL; atadev->softc = NULL; atadev->flags = 0; free(stp, M_AST); } static int ast_sense(struct ast_softc *stp) { int count; /* get drive capabilities, some bugridden drives needs this repeated */ for (count = 0 ; count < 5 ; count++) { if (!ast_mode_sense(stp, ATAPI_TAPE_CAP_PAGE, &stp->cap, sizeof(stp->cap)) && stp->cap.page_code == ATAPI_TAPE_CAP_PAGE) { if (stp->cap.blk32k) stp->blksize = 32768; if (stp->cap.blk1024) stp->blksize = 1024; if (stp->cap.blk512) stp->blksize = 512; if (!stp->blksize) continue; stp->cap.max_speed = ntohs(stp->cap.max_speed); stp->cap.max_defects = ntohs(stp->cap.max_defects); stp->cap.ctl = ntohs(stp->cap.ctl); stp->cap.speed = ntohs(stp->cap.speed); stp->cap.buffer_size = ntohs(stp->cap.buffer_size); return 0; } } return 1; } static void ast_describe(struct ast_softc *stp) { if (bootverbose) { ata_prtdev(stp->device, "<%.40s/%.8s> tape drive at ata%d as %s\n", stp->device->param->model, stp->device->param->revision, device_get_unit(stp->device->channel->dev), (stp->device->unit == ATA_MASTER) ? "master" : "slave"); ata_prtdev(stp->device, "%dKB/s, ", stp->cap.max_speed); printf("transfer limit %d blk%s, ", stp->cap.ctl, (stp->cap.ctl > 1) ? "s" : ""); printf("%dKB buffer, ", (stp->cap.buffer_size * DEV_BSIZE) / 1024); printf("%s\n", ata_mode2str(stp->device->mode)); ata_prtdev(stp->device, "Medium: "); switch (stp->cap.medium_type) { case 0x00: printf("none"); break; case 0x17: printf("Travan 1 (400 Mbyte)"); break; case 0xb6: printf("Travan 4 (4 Gbyte)"); break; case 0xda: printf("OnStream ADR (15Gyte)"); break; default: printf("unknown (0x%x)", stp->cap.medium_type); } if (stp->cap.readonly) printf(", readonly"); if (stp->cap.reverse) printf(", reverse"); if (stp->cap.eformat) printf(", eformat"); if (stp->cap.qfa) printf(", qfa"); if (stp->cap.lock) printf(", lock"); if (stp->cap.locked) printf(", locked"); if (stp->cap.prevent) printf(", prevent"); if (stp->cap.eject) printf(", eject"); if (stp->cap.disconnect) printf(", disconnect"); if (stp->cap.ecc) printf(", ecc"); if (stp->cap.compress) printf(", compress"); if (stp->cap.blk512) printf(", 512b"); if (stp->cap.blk1024) printf(", 1024b"); if (stp->cap.blk32k) printf(", 32kb"); printf("\n"); } else { ata_prtdev(stp->device, "TAPE <%.40s> at ata%d-%s %s\n", stp->device->param->model, device_get_unit(stp->device->channel->dev), (stp->device->unit == ATA_MASTER) ? "master" : "slave", ata_mode2str(stp->device->mode)); } } static int ast_open(dev_t dev, int flags, int fmt, struct thread *td) { struct ast_softc *stp = dev->si_drv1; if (!stp || stp->device->flags & ATA_D_DETACHING) return ENXIO; if (count_dev(dev) > 1) return EBUSY; ast_test_ready(stp->device); if (stp->cap.lock) ast_prevent_allow(stp, 1); if (ast_sense(stp)) ata_prtdev(stp->device, "sense media type failed\n"); stp->device->flags &= ~ATA_D_MEDIA_CHANGED; stp->flags &= ~(F_DATA_WRITTEN | F_FM_WRITTEN); ast_total = 0; return 0; } static int ast_close(dev_t dev, int flags, int fmt, struct thread *td) { struct ast_softc *stp = dev->si_drv1; /* flush buffers, some drives fail here, they should report ctl = 0 */ if (stp->cap.ctl && (stp->flags & F_DATA_WRITTEN)) ast_write_filemark(stp, 0); /* write filemark if data written to tape */ if (!(stp->flags & F_ONSTREAM) && (stp->flags & (F_DATA_WRITTEN | F_FM_WRITTEN)) == F_DATA_WRITTEN) ast_write_filemark(stp, ATAPI_WF_WRITE); /* if minor is even rewind on close */ if (!(minor(dev) & 0x01)) ast_rewind(stp); if (stp->cap.lock && count_dev(dev) == 1) ast_prevent_allow(stp, 0); stp->flags &= ~F_CTL_WARN; #ifdef AST_DEBUG ata_prtdev(stp->device, "%ju total bytes transferred\n", (uintmax_t)ast_total); #endif return 0; } static int ast_ioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td) { struct ast_softc *stp = dev->si_drv1; int error = 0; switch (cmd) { case MTIOCGET: { struct mtget *g = (struct mtget *) addr; bzero(g, sizeof(struct mtget)); g->mt_type = 7; g->mt_density = 1; g->mt_blksiz = stp->blksize; g->mt_comp = stp->cap.compress; g->mt_density0 = 0; g->mt_density1 = 0; g->mt_density2 = 0; g->mt_density3 = 0; g->mt_blksiz0 = 0; g->mt_blksiz1 = 0; g->mt_blksiz2 = 0; g->mt_blksiz3 = 0; g->mt_comp0 = 0; g->mt_comp1 = 0; g->mt_comp2 = 0; g->mt_comp3 = 0; } break; case MTIOCTOP: { int i; struct mtop *mt = (struct mtop *)addr; switch ((int16_t) (mt->mt_op)) { case MTWEOF: for (i=0; i < mt->mt_count && !error; i++) error = ast_write_filemark(stp, ATAPI_WF_WRITE); break; case MTFSF: if (mt->mt_count) error = ast_space(stp, ATAPI_SP_FM, mt->mt_count); break; case MTBSF: if (mt->mt_count) error = ast_space(stp, ATAPI_SP_FM, -(mt->mt_count)); break; case MTREW: error = ast_rewind(stp); break; case MTOFFL: error = ast_load_unload(stp, ATAPI_SS_EJECT); break; case MTNOP: error = ast_write_filemark(stp, 0); break; case MTERASE: error = ast_erase(stp); break; case MTEOD: error = ast_space(stp, ATAPI_SP_EOD, 0); break; case MTRETENS: error = ast_load_unload(stp, ATAPI_SS_RETENSION|ATAPI_SS_LOAD); break; case MTFSR: case MTBSR: case MTCACHE: case MTNOCACHE: case MTSETBSIZ: case MTSETDNSTY: case MTCOMP: default: error = EINVAL; } } break; case MTIOCRDSPOS: { struct ast_readposition position; if ((error = ast_read_position(stp, 0, &position))) break; *(u_int32_t *)addr = position.tape; } break; case MTIOCRDHPOS: { struct ast_readposition position; if ((error = ast_read_position(stp, 1, &position))) break; *(u_int32_t *)addr = position.tape; } break; case MTIOCSLOCATE: error = ast_locate(stp, 0, *(u_int32_t *)addr); break; case MTIOCHLOCATE: error = ast_locate(stp, 1, *(u_int32_t *)addr); break; default: error = ENOTTY; } return error; } static void ast_strategy(struct bio *bp) { struct ast_softc *stp = bp->bio_dev->si_drv1; if (stp->device->flags & ATA_D_DETACHING) { biofinish(bp, NULL, ENXIO); return; } /* if it's a null transfer, return immediatly. */ if (bp->bio_bcount == 0) { bp->bio_resid = 0; biodone(bp); return; } if (!(bp->bio_cmd == BIO_READ) && stp->flags & F_WRITEPROTECT) { biofinish(bp, NULL, EPERM); return; } /* check for != blocksize requests */ if (bp->bio_bcount % stp->blksize) { ata_prtdev(stp->device, "transfers must be multiple of %d\n", stp->blksize); biofinish(bp, NULL, EIO); return; } /* warn about transfers bigger than the device suggests */ if (bp->bio_bcount > stp->blksize * stp->cap.ctl) { if ((stp->flags & F_CTL_WARN) == 0) { ata_prtdev(stp->device, "WARNING: CTL exceeded %ld>%d\n", bp->bio_bcount, stp->blksize * stp->cap.ctl); stp->flags |= F_CTL_WARN; } } mtx_lock(&stp->queue_mtx); bioq_insert_tail(&stp->queue, bp); mtx_unlock(&stp->queue_mtx); ata_start(stp->device->channel); } static void ast_start(struct ata_device *atadev) { struct ast_softc *stp = atadev->softc; struct bio *bp; struct ata_request *request; u_int32_t blkcount; int8_t ccb[16]; mtx_lock(&stp->queue_mtx); bp = bioq_first(&stp->queue); if (!bp) { mtx_unlock(&stp->queue_mtx); return; } bioq_remove(&stp->queue, bp); mtx_unlock(&stp->queue_mtx); bzero(ccb, sizeof(ccb)); if (bp->bio_cmd == BIO_READ) ccb[0] = ATAPI_READ; else ccb[0] = ATAPI_WRITE; blkcount = bp->bio_bcount / stp->blksize; ccb[1] = 1; ccb[2] = blkcount>>16; ccb[3] = blkcount>>8; ccb[4] = blkcount; if (!(request = ata_alloc_request())) { biofinish(bp, NULL, EIO); return; } request->device = atadev; request->driver = bp; bcopy(ccb, request->u.atapi.ccb, (request->device->param->config & ATA_PROTO_MASK) == ATA_PROTO_ATAPI_12 ? 16 : 12); request->data = bp->bio_data; request->bytecount = blkcount * stp->blksize; request->transfersize = min(request->bytecount, 65534); request->timeout = (ccb[0] == ATAPI_WRITE_BIG) ? 180 : 120; request->retries = 2; request->callback = ast_done; switch (bp->bio_cmd) { case BIO_READ: request->flags |= (ATA_R_SKIPSTART | ATA_R_ATAPI | ATA_R_READ); break; case BIO_WRITE: request->flags |= (ATA_R_SKIPSTART | ATA_R_ATAPI | ATA_R_WRITE); break; default: ata_prtdev(atadev, "unknown BIO operation\n"); ata_free_request(request); biofinish(bp, NULL, EIO); return; } devstat_start_transaction_bio(stp->stats, bp); ata_queue_request(request); } static void ast_done(struct ata_request *request) { struct bio *bp = request->driver; struct ast_softc *stp = request->device->softc; /* finish up transfer */ if ((bp->bio_error = request->result)) bp->bio_flags |= BIO_ERROR; if (bp->bio_cmd == BIO_WRITE) stp->flags |= F_DATA_WRITTEN; bp->bio_resid = bp->bio_bcount - request->donecount; ast_total += (bp->bio_bcount - bp->bio_resid); biofinish(bp, stp->stats, 0); ata_free_request(request); } static int ast_mode_sense(struct ast_softc *stp, int page, void *pagebuf, int pagesize) { int8_t ccb[16] = { ATAPI_MODE_SENSE, 0x08, page, pagesize>>8, pagesize, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; int error; error = ata_atapicmd(stp->device, ccb, pagebuf, pagesize, ATA_R_READ, 10); #ifdef AST_DEBUG atapi_dump("ast: mode sense ", pagebuf, pagesize); #endif return error; } static int ast_mode_select(struct ast_softc *stp, void *pagebuf, int pagesize) { int8_t ccb[16] = { ATAPI_MODE_SELECT, 0x10, 0, pagesize>>8, pagesize, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; #ifdef AST_DEBUG ata_prtdev(stp->device, "modeselect pagesize=%d\n", pagesize); atapi_dump("mode select ", pagebuf, pagesize); #endif return ata_atapicmd(stp->device, ccb, pagebuf, pagesize, 0, 10); } static int ast_write_filemark(struct ast_softc *stp, u_int8_t function) { int8_t ccb[16] = { ATAPI_WEOF, 0x01, 0, 0, function, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; int error; if (stp->flags & F_ONSTREAM) ccb[4] = 0x00; /* only flush buffers supported */ else { if (function) { if (stp->flags & F_FM_WRITTEN) stp->flags &= ~F_DATA_WRITTEN; else stp->flags |= F_FM_WRITTEN; } } error = ata_atapicmd(stp->device, ccb, NULL, 0, 0, 10); if (error) return error; return ast_wait_dsc(stp->device, 10*60); } static int ast_read_position(struct ast_softc *stp, int hard, struct ast_readposition *position) { int8_t ccb[16] = { ATAPI_READ_POSITION, (hard ? 0x01 : 0), 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; int error; error = ata_atapicmd(stp->device, ccb, (caddr_t)position, sizeof(struct ast_readposition), ATA_R_READ, 10); position->tape = ntohl(position->tape); position->host = ntohl(position->host); return error; } static int ast_space(struct ast_softc *stp, u_int8_t function, int32_t count) { int8_t ccb[16] = { ATAPI_SPACE, function, count>>16, count>>8, count, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; return ata_atapicmd(stp->device, ccb, NULL, 0, 0, 60*60); } static int ast_locate(struct ast_softc *stp, int hard, u_int32_t pos) { int8_t ccb[16] = { ATAPI_LOCATE, 0x01 | (hard ? 0x4 : 0), 0, pos>>24, pos>>16, pos>>8, pos, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; int error; error = ata_atapicmd(stp->device, ccb, NULL, 0, 0, 10); if (error) return error; return ast_wait_dsc(stp->device, 60*60); } static int ast_prevent_allow(struct ast_softc *stp, int lock) { int8_t ccb[16] = { ATAPI_PREVENT_ALLOW, 0, 0, 0, lock, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; return ata_atapicmd(stp->device, ccb, NULL, 0, 0, 30); } static int ast_load_unload(struct ast_softc *stp, u_int8_t function) { int8_t ccb[16] = { ATAPI_START_STOP, 0x01, 0, 0, function, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; int error; if ((function & ATAPI_SS_EJECT) && !stp->cap.eject) return 0; error = ata_atapicmd(stp->device, ccb, NULL, 0, 0, 10); if (error) return error; tsleep((caddr_t)&error, PRIBIO, "astlu", 1 * hz); if (function == ATAPI_SS_EJECT) return 0; return ast_wait_dsc(stp->device, 60*60); } static int ast_rewind(struct ast_softc *stp) { int8_t ccb[16] = { ATAPI_REZERO, 0x01, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; int error; error = ata_atapicmd(stp->device, ccb, NULL, 0, 0, 10); if (error) return error; return ast_wait_dsc(stp->device, 60*60); } static int ast_erase(struct ast_softc *stp) { int8_t ccb[16] = { ATAPI_ERASE, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; int error; if ((error = ast_rewind(stp))) return error; return ata_atapicmd(stp->device, ccb, NULL, 0, 0, 60*60); } static int ast_test_ready(struct ata_device *atadev) { int8_t ccb[16] = { ATAPI_TEST_UNIT_READY, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; return ata_atapicmd(atadev, ccb, NULL, 0, 0, 30); } static int ast_wait_dsc(struct ata_device *atadev, int timeout) { int error = 0; int8_t ccb[16] = { ATAPI_POLL_DSC, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; timeout *= hz; while (timeout > 0) { error = ata_atapicmd(atadev, ccb, NULL, 0, 0, 0); if (error != EBUSY) break; tsleep(&error, PRIBIO, "atpwt", hz / 2); timeout -= (hz / 2); } return error; }