3082a6dc59
to fall back to slower speeds if the faster ones fails to probe. Log and retry request on UDMA CRC errors. Fix a couple of warnings.
641 lines
18 KiB
C
641 lines
18 KiB
C
/*-
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* Copyright (c) 1998,1999 Søren Schmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include "apm.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/conf.h>
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#include <sys/malloc.h>
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#include <sys/buf.h>
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#include <sys/mtio.h>
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#include <sys/disklabel.h>
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#include <sys/devicestat.h>
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#if NAPM > 0
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#include <machine/apm_bios.h>
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#endif
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#include <dev/ata/ata-all.h>
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#include <dev/ata/atapi-all.h>
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#include <dev/ata/atapi-tape.h>
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static d_open_t astopen;
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static d_close_t astclose;
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static d_ioctl_t astioctl;
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static d_strategy_t aststrategy;
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static struct cdevsw ast_cdevsw = {
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/* open */ astopen,
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/* close */ astclose,
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/* read */ physread,
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/* write */ physwrite,
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/* ioctl */ astioctl,
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/* poll */ nopoll,
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/* mmap */ nommap,
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/* strategy */ aststrategy,
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/* name */ "ast",
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/* maj */ 119,
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/* dump */ nodump,
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/* psize */ nopsize,
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/* flags */ D_TAPE,
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/* bmaj */ -1
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};
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/* prototypes */
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int32_t astattach(struct atapi_softc *);
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static int32_t ast_sense(struct ast_softc *);
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static void ast_describe(struct ast_softc *);
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static void ast_start(struct ast_softc *);
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static int32_t ast_done(struct atapi_request *);
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static int32_t ast_mode_sense(struct ast_softc *, u_int8_t, void *, int32_t);
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static int32_t ast_mode_select(struct ast_softc *, void *, int32_t);
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static int32_t ast_write_filemark(struct ast_softc *, u_int8_t);
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static int32_t ast_read_position(struct ast_softc *, int32_t, struct ast_readposition *);
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static int32_t ast_space(struct ast_softc *, u_int8_t, u_int32_t);
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static int32_t ast_locate(struct ast_softc *, int32_t, int32_t);
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static int32_t ast_prevent_allow(struct ast_softc *stp, int32_t lock);
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static int32_t ast_load_unload(struct ast_softc *, u_int8_t);
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static int32_t ast_rewind(struct ast_softc *);
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static int32_t ast_erase(struct ast_softc *);
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/* internal vars */
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static u_int64_t ast_total = 0;
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MALLOC_DEFINE(M_AST, "AST driver", "ATAPI tape driver buffers");
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int32_t
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astattach(struct atapi_softc *atp)
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{
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struct ast_softc *stp;
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struct ast_readposition position;
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dev_t dev;
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static int32_t ast_cdev_done = 0, astnlun = 0;
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if (!ast_cdev_done) {
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cdevsw_add(&ast_cdevsw);
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ast_cdev_done = 1;
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}
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stp = malloc(sizeof(struct ast_softc), M_AST, M_NOWAIT);
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if (!stp) {
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printf("ast: out of memory\n");
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return -1;
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}
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bzero(stp, sizeof(struct ast_softc));
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bufq_init(&stp->buf_queue);
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stp->atp = atp;
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stp->lun = astnlun++;
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stp->atp->flags |= ATAPI_F_MEDIA_CHANGED;
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if (ast_sense(stp)) {
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free(stp, M_AST);
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return -1;
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}
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ast_describe(stp);
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if (!strcmp(stp->atp->atapi_parm->model, " OnStream DI-30")) {
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struct ast_transferpage transfer;
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struct ast_identifypage identify;
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stp->flags |= F_ONSTREAM;
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bzero(&transfer, sizeof(struct ast_transferpage));
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ast_mode_sense(stp, ATAPI_TAPE_TRANSFER_PAGE,
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&transfer, sizeof(transfer));
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#ifdef AST_DEBUG
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printf("ast: rd32k=%d rd32k5=%d wr32k=%d wr32k5=%d stream=%d\n",
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transfer.read32k, transfer.read32k5,
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transfer.write32k, transfer.write32k5, transfer.streaming);
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#endif
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bzero(&identify, sizeof(struct ast_identifypage));
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ast_mode_sense(stp, ATAPI_TAPE_IDENTIFY_PAGE,
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&identify, sizeof(identify));
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strncpy(identify.ident, "FBSD", 4);
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ast_mode_select(stp, &identify, sizeof(identify));
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ast_read_position(stp, 0, &position);
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}
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devstat_add_entry(&stp->stats, "ast", stp->lun, DEV_BSIZE,
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DEVSTAT_NO_ORDERED_TAGS,
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DEVSTAT_TYPE_SEQUENTIAL | DEVSTAT_TYPE_IF_IDE,
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0x170);
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dev = make_dev(&ast_cdevsw, dkmakeminor(stp->lun, 0, 0),
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UID_ROOT, GID_OPERATOR, 0640, "rast%d", stp->lun);
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dev->si_drv1 = stp;
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dev->si_iosize_max = 252 * DEV_BSIZE;
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dev = make_dev(&ast_cdevsw, dkmakeminor(stp->lun, 0, 1),
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UID_ROOT, GID_OPERATOR, 0640, "nrast%d", stp->lun);
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dev->si_drv1 = stp;
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dev->si_iosize_max = 252 * DEV_BSIZE;
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return 0;
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}
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static int32_t
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ast_sense(struct ast_softc *stp)
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{
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int32_t count, error = 0;
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/* get drive capabilities, some drives needs this repeated */
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for (count = 0 ; count < 5 ; count++) {
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if (!(error = ast_mode_sense(stp, ATAPI_TAPE_CAP_PAGE,
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&stp->cap, sizeof(stp->cap))))
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break;
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}
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if (error)
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return 1;
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stp->cap.max_speed = ntohs(stp->cap.max_speed);
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stp->cap.max_defects = ntohs(stp->cap.max_defects);
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stp->cap.ctl = ntohs(stp->cap.ctl);
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stp->cap.speed = ntohs(stp->cap.speed);
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stp->cap.buffer_size = ntohs(stp->cap.buffer_size);
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if (stp->cap.blk32k)
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stp->blksize = 32768;
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if (stp->cap.blk1024)
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stp->blksize = 1024;
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if (stp->cap.blk512)
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stp->blksize = 512;
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return 0;
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}
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static void
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ast_describe(struct ast_softc *stp)
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{
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int8_t model_buf[40+1];
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int8_t revision_buf[8+1];
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bpack(stp->atp->atapi_parm->model, model_buf, sizeof(model_buf));
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bpack(stp->atp->atapi_parm->revision, revision_buf, sizeof(revision_buf));
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printf("ast%d: <%s/%s> tape drive at ata%d as %s\n",
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stp->lun, model_buf, revision_buf,
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stp->atp->controller->lun,
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(stp->atp->unit == ATA_MASTER) ? "master" : "slave ");
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printf("ast%d: ", stp->lun);
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printf("%dKB/s, ", stp->cap.max_speed);
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printf("transfer limit %d blk%s, ", stp->cap.ctl, (stp->cap.ctl>1)?"s":"");
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printf("%dKB buffer, ", (stp->cap.buffer_size * DEV_BSIZE) / 1024);
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printf("%s\n", ata_mode2str(stp->atp->controller->mode[
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(stp->atp->unit == ATA_MASTER) ? 0 : 1]));
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printf("ast%d: ", stp->lun);
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switch (stp->cap.medium_type) {
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case 0x00: printf("Drive empty"); break;
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case 0x17: printf("Travan 1 (400 Mbyte) media"); break;
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case 0xb6: printf("Travan 4 (4 Gbyte) media"); break;
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case 0xda: printf("OnStream ADR (15Gyte) media"); break;
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default: printf("Unknown media (0x%x)", stp->cap.medium_type);
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}
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if (stp->cap.readonly) printf(", readonly");
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if (stp->cap.reverse) printf(", reverse");
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if (stp->cap.eformat) printf(", eformat");
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if (stp->cap.qfa) printf(", qfa");
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if (stp->cap.lock) printf(", lock");
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if (stp->cap.locked) printf(", locked");
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if (stp->cap.prevent) printf(", prevent");
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if (stp->cap.eject) printf(", eject");
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if (stp->cap.disconnect) printf(", disconnect");
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if (stp->cap.ecc) printf(", ecc");
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if (stp->cap.compress) printf(", compress");
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if (stp->cap.blk512) printf(", 512b");
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if (stp->cap.blk1024) printf(", 1024b");
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if (stp->cap.blk32k) printf(", 32kb");
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printf("\n");
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}
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static int
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astopen(dev_t dev, int32_t flags, int32_t fmt, struct proc *p)
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{
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struct ast_softc *stp = dev->si_drv1;
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if (!stp)
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return ENXIO;
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if (stp->flags == F_OPEN)
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return EBUSY;
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if (stp->cap.lock)
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ast_prevent_allow(stp, 1);
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if (ast_sense(stp))
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printf("ast%d: sense media type failed\n", stp->lun);
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stp->flags &= ~(F_DATA_WRITTEN | F_FM_WRITTEN);
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stp->flags |= F_OPEN;
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stp->atp->flags &= ~ATAPI_F_MEDIA_CHANGED;
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ast_total = 0;
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return 0;
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}
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static int
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astclose(dev_t dev, int32_t flags, int32_t fmt, struct proc *p)
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{
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struct ast_softc *stp = dev->si_drv1;
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/* flush buffers, some drives fail here, they should report ctl = 0 */
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if (stp->cap.ctl && (stp->flags & F_DATA_WRITTEN))
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ast_write_filemark(stp, 0);
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/* write filemark if data written to tape */
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if (!(stp->flags & F_ONSTREAM) &&
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(stp->flags & (F_DATA_WRITTEN | F_FM_WRITTEN)) == F_DATA_WRITTEN)
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ast_write_filemark(stp, WF_WRITE);
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/* if minor is even rewind on close */
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if (!(minor(dev) & 0x01))
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ast_rewind(stp);
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if (stp->cap.lock)
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ast_prevent_allow(stp, 0);
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stp->flags &= ~(F_OPEN | F_CTL_WARN);
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#ifdef AST_DEBUG
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printf("ast%d: %llu total bytes transferred\n", stp->lun, ast_total);
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#endif
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return 0;
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}
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static int
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astioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, struct proc *p)
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{
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struct ast_softc *stp = dev->si_drv1;
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int32_t error = 0;
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switch (cmd) {
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case MTIOCGET:
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{
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struct mtget *g = (struct mtget *) addr;
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bzero(g, sizeof(struct mtget));
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g->mt_type = 7;
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g->mt_density = 1;
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g->mt_blksiz = stp->blksize;
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g->mt_comp = stp->cap.compress;
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g->mt_density0 = 0; g->mt_density1 = 0;
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g->mt_density2 = 0; g->mt_density3 = 0;
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g->mt_blksiz0 = 0; g->mt_blksiz1 = 0;
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g->mt_blksiz2 = 0; g->mt_blksiz3 = 0;
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g->mt_comp0 = 0; g->mt_comp1 = 0;
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g->mt_comp2 = 0; g->mt_comp3 = 0;
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break;
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}
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case MTIOCTOP:
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{
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int32_t i;
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struct mtop *mt = (struct mtop *)addr;
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switch ((int16_t) (mt->mt_op)) {
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case MTWEOF:
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for (i=0; i < mt->mt_count && !error; i++)
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error = ast_write_filemark(stp, WF_WRITE);
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break;
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case MTFSF:
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if (mt->mt_count)
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error = ast_space(stp, SP_FM, mt->mt_count);
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break;
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case MTBSF:
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if (mt->mt_count)
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error = ast_space(stp, SP_FM, -(mt->mt_count));
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break;
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case MTREW:
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error = ast_rewind(stp);
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break;
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case MTOFFL:
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error = ast_load_unload(stp, SS_EJECT);
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break;
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case MTNOP:
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error = ast_write_filemark(stp, 0);
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break;
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case MTERASE:
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error = ast_erase(stp);
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break;
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case MTEOD:
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error = ast_space(stp, SP_EOD, 0);
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break;
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case MTRETENS:
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error = ast_load_unload(stp, SS_RETENSION | SS_LOAD);
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break;
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case MTFSR:
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case MTBSR:
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case MTCACHE:
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case MTNOCACHE:
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case MTSETBSIZ:
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case MTSETDNSTY:
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case MTCOMP:
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default:
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error = EINVAL;
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}
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break;
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}
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case MTIOCRDSPOS:
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{
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struct ast_readposition position;
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if ((error = ast_read_position(stp, 0, &position)))
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break;
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*(u_int32_t *)addr = position.tape;
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break;
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}
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case MTIOCRDHPOS:
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{
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struct ast_readposition position;
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if ((error = ast_read_position(stp, 1, &position)))
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break;
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*(u_int32_t *)addr = position.tape;
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break;
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}
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case MTIOCSLOCATE:
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error = ast_locate(stp, 0, *(u_int32_t *)addr);
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break;
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case MTIOCHLOCATE:
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error = ast_locate(stp, 1, *(u_int32_t *)addr);
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break;
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default:
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error = ENOTTY;
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}
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return error;
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}
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static void
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aststrategy(struct buf *bp)
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{
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struct ast_softc *stp = bp->b_dev->si_drv1;
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int32_t s;
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/* if it's a null transfer, return immediatly. */
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if (bp->b_bcount == 0) {
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bp->b_resid = 0;
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biodone(bp);
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return;
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}
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if (!(bp->b_flags & B_READ) && stp->flags & F_WRITEPROTECT) {
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bp->b_error = EPERM;
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bp->b_flags |= B_ERROR;
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biodone(bp);
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return;
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}
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/* check for != blocksize requests */
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if (bp->b_bcount % stp->blksize) {
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printf("ast%d: bad request, must be multiple of %d\n",
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stp->lun, stp->blksize);
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bp->b_error = EIO;
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bp->b_flags |= B_ERROR;
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biodone(bp);
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return;
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}
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/* warn about transfers bigger than the device suggests */
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if (bp->b_bcount > stp->blksize * stp->cap.ctl) {
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if ((stp->flags & F_CTL_WARN) == 0) {
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printf("ast%d: WARNING: CTL exceeded %ld>%d\n",
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stp->lun, bp->b_bcount, stp->blksize * stp->cap.ctl);
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stp->flags |= F_CTL_WARN;
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}
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}
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s = splbio();
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bufq_insert_tail(&stp->buf_queue, bp);
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ast_start(stp);
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splx(s);
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}
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static void
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ast_start(struct ast_softc *stp)
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{
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struct buf *bp = bufq_first(&stp->buf_queue);
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u_int32_t blkcount;
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int8_t ccb[16];
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if (!bp)
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return;
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bzero(ccb, sizeof(ccb));
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if (bp->b_flags & B_READ) {
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ccb[0] = ATAPI_READ;
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if (!(stp->flags & ATAPI_F_DSC_USED))
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atapi_queue_cmd(stp->atp, ccb, NULL, 0, 0, 2*60, NULL, NULL, NULL);
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}
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else {
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ccb[0] = ATAPI_WRITE;
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if (!(stp->flags & ATAPI_F_DSC_USED))
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atapi_queue_cmd(stp->atp, ccb, NULL, 0, 0, 2*60, NULL, NULL, NULL);
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}
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bufq_remove(&stp->buf_queue, bp);
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blkcount = bp->b_bcount / stp->blksize;
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ccb[1] = 1;
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ccb[2] = blkcount>>16;
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ccb[3] = blkcount>>8;
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ccb[4] = blkcount;
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devstat_start_transaction(&stp->stats);
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atapi_queue_cmd(stp->atp, ccb, bp->b_data, bp->b_bcount,
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(bp->b_flags & B_READ) ? A_READ : 0, 60, ast_done, stp, bp);
|
|
}
|
|
|
|
static int32_t
|
|
ast_done(struct atapi_request *request)
|
|
{
|
|
struct buf *bp = request->bp;
|
|
struct ast_softc *stp = request->driver;
|
|
|
|
if (request->error) {
|
|
bp->b_error = request->error;
|
|
bp->b_flags |= B_ERROR;
|
|
}
|
|
else {
|
|
if (!(bp->b_flags & B_READ))
|
|
stp->flags |= F_DATA_WRITTEN;
|
|
bp->b_resid = request->bytecount;
|
|
ast_total += (bp->b_bcount - bp->b_resid);
|
|
}
|
|
devstat_end_transaction_buf(&stp->stats, bp);
|
|
biodone(bp);
|
|
ast_start(stp);
|
|
return 0;
|
|
}
|
|
|
|
static int32_t
|
|
ast_mode_sense(struct ast_softc *stp, u_int8_t page,
|
|
void *pagebuf, int32_t pagesize)
|
|
{
|
|
int8_t ccb[16] = { ATAPI_MODE_SENSE, 0x08, page, pagesize>>8, pagesize,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
|
|
int32_t error;
|
|
|
|
error = atapi_queue_cmd(stp->atp, ccb, pagebuf, pagesize, A_READ, 10,
|
|
NULL, NULL, NULL);
|
|
#ifdef AST_DEBUG
|
|
atapi_dump("ast: mode sense ", pagebuf, pagesize);
|
|
#endif
|
|
return error;
|
|
}
|
|
|
|
static int32_t
|
|
ast_mode_select(struct ast_softc *stp, void *pagebuf, int32_t 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
|
|
printf("ast: modeselect pagesize=%d\n", pagesize);
|
|
atapi_dump("ast: mode select ", pagebuf, pagesize);
|
|
#endif
|
|
return atapi_queue_cmd(stp->atp, ccb, pagebuf, pagesize, 0, 10,
|
|
NULL, NULL, NULL);
|
|
}
|
|
|
|
static int32_t
|
|
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 };
|
|
int32_t 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 = atapi_queue_cmd(stp->atp, ccb, NULL, 0, 0, 10, NULL, NULL, NULL);
|
|
if (error)
|
|
return error;
|
|
return atapi_wait_ready(stp->atp, 5*60);
|
|
}
|
|
|
|
static int32_t
|
|
ast_read_position(struct ast_softc *stp, int32_t 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 };
|
|
int32_t error;
|
|
|
|
error = atapi_queue_cmd(stp->atp, ccb, position,
|
|
sizeof(struct ast_readposition), A_READ, 10,
|
|
NULL, NULL, NULL);
|
|
position->tape = ntohl(position->tape);
|
|
position->host = ntohl(position->host);
|
|
#ifdef AST_DEBUG
|
|
printf("ast%d: BOP=%d EOP=%d host=%ld tape=%ld in buf=%d error=%02x\n",
|
|
stp->lun, position->bop, position->eop, ntohl(position->host),
|
|
ntohl(position->tape), position->blks_in_buf, error);
|
|
#endif
|
|
return error;
|
|
}
|
|
|
|
static int32_t
|
|
ast_space(struct ast_softc *stp, u_int8_t function, u_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 atapi_queue_cmd(stp->atp, ccb, NULL, 0, 0, 60*60, NULL, NULL, NULL);
|
|
}
|
|
|
|
static int32_t
|
|
ast_locate(struct ast_softc *stp, int32_t hard, 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 };
|
|
int32_t error;
|
|
|
|
error = atapi_queue_cmd(stp->atp, ccb, NULL, 0, 0, 10, NULL, NULL, NULL);
|
|
if (error)
|
|
return error;
|
|
return atapi_wait_ready(stp->atp, 60*60);
|
|
}
|
|
|
|
static int32_t
|
|
ast_prevent_allow(struct ast_softc *stp, int32_t lock)
|
|
{
|
|
int8_t ccb[16] = { ATAPI_PREVENT_ALLOW, 0, 0, 0, lock,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
|
|
|
|
return atapi_queue_cmd(stp->atp, ccb, NULL, 0, 0,30, NULL, NULL, NULL);
|
|
}
|
|
|
|
static int32_t
|
|
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 };
|
|
int32_t error;
|
|
|
|
if ((function & SS_EJECT) && !stp->cap.eject)
|
|
return 0;
|
|
error = atapi_queue_cmd(stp->atp, ccb, NULL, 0, 0, 10, NULL, NULL, NULL);
|
|
if (error)
|
|
return error;
|
|
tsleep((caddr_t)&error, PRIBIO, "astlu", 1 * hz);
|
|
if (function == SS_EJECT)
|
|
return 0;
|
|
return atapi_wait_ready(stp->atp, 60*60);
|
|
}
|
|
|
|
static int32_t
|
|
ast_rewind(struct ast_softc *stp)
|
|
{
|
|
int8_t ccb[16] = { ATAPI_REWIND, 0x01, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0 };
|
|
int32_t error;
|
|
|
|
error = atapi_queue_cmd(stp->atp, ccb, NULL, 0, 0, 10, NULL, NULL, NULL);
|
|
if (error)
|
|
return error;
|
|
return atapi_wait_ready(stp->atp, 60*60);
|
|
}
|
|
|
|
static int32_t
|
|
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 };
|
|
int32_t error;
|
|
|
|
if ((error = ast_rewind(stp)))
|
|
return error;
|
|
|
|
return atapi_queue_cmd(stp->atp, ccb, NULL, 0, 0, 60*60, NULL, NULL, NULL);
|
|
}
|