taglinefilesource code
STp187drivers/scsi/st.cScsi_Tape * STp;
STp190drivers/scsi/st.cSTp = &(scsi_tapes[st_nbr]);
STp191drivers/scsi/st.cif ((STp->buffer)->writing &&
STp203drivers/scsi/st.c(STp->buffer)->last_result = SCpnt->result; /* Error */
STp205drivers/scsi/st.c(STp->buffer)->last_result = INT_MAX; /* OK */
STp208drivers/scsi/st.c(STp->buffer)->last_result = SCpnt->result;
STp209drivers/scsi/st.cif ((STp->buffer)->writing) {
STp211drivers/scsi/st.c(STp->buffer)->last_result_fatal = st_chk_result(SCpnt);
STp218drivers/scsi/st.cSTp->write_pending = 0;
STp231drivers/scsi/st.cst_do_scsi(Scsi_Cmnd *SCpnt, Scsi_Tape *STp, unsigned char *cmd, int bytes,
STp235drivers/scsi/st.cif ((SCpnt = allocate_device(NULL, STp->device, 1)) == NULL) {
STp236drivers/scsi/st.cprintk(KERN_ERR "st%d: Can't get SCSI request.\n", TAPE_NR(STp->devt));
STp241drivers/scsi/st.cSTp->sem = MUTEX_LOCKED;
STp242drivers/scsi/st.cSCpnt->request.sem = &(STp->sem);
STp244drivers/scsi/st.cSCpnt->request.rq_dev = STp->devt;
STp246drivers/scsi/st.cscsi_do_cmd(SCpnt, (void *)cmd, (STp->buffer)->b_data, bytes,
STp251drivers/scsi/st.c(STp->buffer)->last_result_fatal = st_chk_result(SCpnt);
STp259drivers/scsi/st.cwrite_behind_check(Scsi_Tape *STp)
STp263drivers/scsi/st.cSTbuffer = STp->buffer;
STp266drivers/scsi/st.cif (STp->write_pending)
STp267drivers/scsi/st.cSTp->nbr_waits++;
STp269drivers/scsi/st.cSTp->nbr_finished++;
STp272drivers/scsi/st.cdown(&(STp->sem));
STp279drivers/scsi/st.cif (STp->drv_block >= 0) {
STp280drivers/scsi/st.cif (STp->block_size == 0)
STp281drivers/scsi/st.cSTp->drv_block++;
STp283drivers/scsi/st.cSTp->drv_block += STbuffer->writing / STp->block_size;
STp294drivers/scsi/st.cback_over_eof(Scsi_Tape *STp)
STp304drivers/scsi/st.cSCpnt = st_do_scsi(NULL, STp, cmd, 0, ST_TIMEOUT, MAX_RETRIES);
STp309drivers/scsi/st.cif ((STp->buffer)->last_result != 0) {
STp310drivers/scsi/st.cprintk(KERN_ERR "st%d: Backing over filemark failed.\n", TAPE_NR(STp->devt));
STp311drivers/scsi/st.cif ((STp->mt_status)->mt_fileno >= 0)
STp312drivers/scsi/st.c(STp->mt_status)->mt_fileno += 1;
STp313drivers/scsi/st.c(STp->mt_status)->mt_blkno = 0;
STp316drivers/scsi/st.creturn (STp->buffer)->last_result_fatal;
STp322drivers/scsi/st.cflush_write_buffer(Scsi_Tape *STp)
STp329drivers/scsi/st.cif ((STp->buffer)->writing) {
STp330drivers/scsi/st.cwrite_behind_check(STp);
STp331drivers/scsi/st.cif ((STp->buffer)->last_result_fatal) {
STp335drivers/scsi/st.cTAPE_NR(STp->devt), (STp->buffer)->last_result);
STp337drivers/scsi/st.cif ((STp->buffer)->last_result == INT_MAX)
STp343drivers/scsi/st.cif (STp->block_size == 0)
STp347drivers/scsi/st.cif (STp->dirty == 1) {
STp349drivers/scsi/st.coffset = (STp->buffer)->buffer_bytes;
STp350drivers/scsi/st.ctransfer = ((offset + STp->block_size - 1) /
STp351drivers/scsi/st.cSTp->block_size) * STp->block_size;
STp354drivers/scsi/st.cprintk(ST_DEB_MSG "st%d: Flushing %d bytes.\n", TAPE_NR(STp->devt), transfer);
STp356drivers/scsi/st.cmemset((STp->buffer)->b_data + offset, 0, transfer - offset);
STp361drivers/scsi/st.cblks = transfer / STp->block_size;
STp366drivers/scsi/st.cSCpnt = st_do_scsi(NULL, STp, cmd, transfer, ST_TIMEOUT, MAX_WRITE_RETRIES);
STp370drivers/scsi/st.cif ((STp->buffer)->last_result_fatal != 0) {
STp371drivers/scsi/st.cprintk(KERN_ERR "st%d: Error on flush.\n", TAPE_NR(STp->devt));
STp375drivers/scsi/st.cSTp->dirty = 0;
STp376drivers/scsi/st.c(STp->buffer)->buffer_bytes = 0;
STp381drivers/scsi/st.cSTp->drv_block = (-1);
STp384drivers/scsi/st.cif (STp->drv_block >= 0)
STp385drivers/scsi/st.cSTp->drv_block += blks;
STp386drivers/scsi/st.cSTp->dirty = 0;
STp387drivers/scsi/st.c(STp->buffer)->buffer_bytes = 0;
STp401drivers/scsi/st.cScsi_Tape * STp;
STp405drivers/scsi/st.cSTp = &(scsi_tapes[dev]);
STp406drivers/scsi/st.cSTbuffer = STp->buffer;
STp412drivers/scsi/st.cif( STp->device->was_reset )
STp415drivers/scsi/st.cif (STp->ready != ST_READY)
STp418drivers/scsi/st.cif (STp->rw == ST_WRITING)  /* Writing */
STp419drivers/scsi/st.creturn flush_write_buffer(STp);
STp421drivers/scsi/st.cif (STp->block_size == 0)
STp424drivers/scsi/st.cbackspace = ((STp->buffer)->buffer_bytes +
STp425drivers/scsi/st.c(STp->buffer)->read_pointer) / STp->block_size -
STp426drivers/scsi/st.c((STp->buffer)->read_pointer + STp->block_size - 1) /
STp427drivers/scsi/st.cSTp->block_size;
STp428drivers/scsi/st.c(STp->buffer)->buffer_bytes = 0;
STp429drivers/scsi/st.c(STp->buffer)->read_pointer = 0;
STp432drivers/scsi/st.cif ((STp->eof == ST_FM) && !STp->eof_hit) {
STp433drivers/scsi/st.cresult = back_over_eof(STp); /* Back over the EOF hit */
STp435drivers/scsi/st.cSTp->eof = ST_NOEOF;
STp436drivers/scsi/st.cSTp->eof_hit = 0;
STp442drivers/scsi/st.celse if ((STp->eof == ST_FM) && !STp->eof_hit) {
STp443drivers/scsi/st.c(STp->mt_status)->mt_fileno++;
STp444drivers/scsi/st.cSTp->drv_block = 0;
STp460drivers/scsi/st.cScsi_Tape * STp;
STp465drivers/scsi/st.cSTp = &(scsi_tapes[dev]);
STp466drivers/scsi/st.cif (STp->in_use) {
STp472drivers/scsi/st.cSTp->rew_at_close = (MINOR(inode->i_rdev) & 0x80) == 0;
STp475drivers/scsi/st.cneed_dma_buffer = STp->restr_dma;
STp481drivers/scsi/st.cSTp->buffer = new_tape_buffer(FALSE, need_dma_buffer);
STp482drivers/scsi/st.cif (STp->buffer == NULL) {
STp488drivers/scsi/st.cSTp->buffer = st_buffers[i];
STp489drivers/scsi/st.c(STp->buffer)->in_use = 1;
STp490drivers/scsi/st.c(STp->buffer)->writing = 0;
STp491drivers/scsi/st.cSTp->in_use = 1;
STp494drivers/scsi/st.cSTp->write_prot = ((flags & O_ACCMODE) == O_RDONLY);
STp496drivers/scsi/st.cSTp->dirty = 0;
STp497drivers/scsi/st.cSTp->rw = ST_IDLE;
STp498drivers/scsi/st.cSTp->ready = ST_READY;
STp499drivers/scsi/st.cif (STp->eof != ST_EOD)  /* Save EOD across opens */
STp500drivers/scsi/st.cSTp->eof = ST_NOEOF;
STp501drivers/scsi/st.cSTp->eof_hit = 0;
STp502drivers/scsi/st.cSTp->recover_count = 0;
STp504drivers/scsi/st.cSTp->nbr_waits = STp->nbr_finished = 0;
STp510drivers/scsi/st.cSCpnt = st_do_scsi(NULL, STp, cmd, 0, ST_LONG_TIMEOUT, MAX_READY_RETRIES);
STp516drivers/scsi/st.c(STp->mt_status)->mt_fileno = 0 ;
STp520drivers/scsi/st.cSCpnt = st_do_scsi(SCpnt, STp, cmd, 0, ST_LONG_TIMEOUT, MAX_READY_RETRIES);
STp522drivers/scsi/st.c(STp->mt_status)->mt_fileno = STp->drv_block = 0;
STp523drivers/scsi/st.cSTp->eof = ST_NOEOF;
STp524drivers/scsi/st.c(STp->device)->was_reset = 0;
STp527drivers/scsi/st.cif ((STp->buffer)->last_result_fatal != 0) {
STp530drivers/scsi/st.c(STp->mt_status)->mt_fileno = STp->drv_block = 0 ;
STp532drivers/scsi/st.cSTp->ready = ST_NO_TAPE;
STp534drivers/scsi/st.c(STp->mt_status)->mt_fileno = STp->drv_block = (-1);
STp535drivers/scsi/st.cSTp->ready = ST_NOT_READY;
STp538drivers/scsi/st.cSTp->density = 0;     /* Clear the erroneous "residue" */
STp539drivers/scsi/st.cSTp->write_prot = 0;
STp540drivers/scsi/st.cSTp->block_size = 0;
STp541drivers/scsi/st.cSTp->eof = ST_NOEOF;
STp542drivers/scsi/st.c(STp->mt_status)->mt_fileno = STp->drv_block = 0;
STp543drivers/scsi/st.cSTp->door_locked = ST_UNLOCKED;
STp553drivers/scsi/st.cSCpnt = st_do_scsi(SCpnt, STp, cmd, 6, ST_TIMEOUT, MAX_READY_RETRIES);
STp556drivers/scsi/st.cSTp->max_block = ((STp->buffer)->b_data[1] << 16) |
STp557drivers/scsi/st.c((STp->buffer)->b_data[2] << 8) | (STp->buffer)->b_data[3];
STp558drivers/scsi/st.cSTp->min_block = ((STp->buffer)->b_data[4] << 8) |
STp559drivers/scsi/st.c(STp->buffer)->b_data[5];
STp562drivers/scsi/st.cprintk(ST_DEB_MSG "st%d: Block limits %d - %d bytes.\n", dev, STp->min_block,
STp563drivers/scsi/st.cSTp->max_block);
STp567drivers/scsi/st.cSTp->min_block = STp->max_block = (-1);
STp578drivers/scsi/st.cSCpnt = st_do_scsi(SCpnt, STp, cmd, 12, ST_TIMEOUT, MAX_READY_RETRIES);
STp580drivers/scsi/st.cif ((STp->buffer)->last_result_fatal != 0) {
STp585drivers/scsi/st.cSTp->block_size = ST_DEFAULT_BLOCK;  /* Educated guess (?) */
STp586drivers/scsi/st.c(STp->buffer)->last_result_fatal = 0;  /* Prevent error propagation */
STp587drivers/scsi/st.cSTp->drv_write_prot = 0;
STp595drivers/scsi/st.c(STp->buffer)->b_data[0], (STp->buffer)->b_data[1],
STp596drivers/scsi/st.c(STp->buffer)->b_data[2], (STp->buffer)->b_data[3]);
STp599drivers/scsi/st.cif ((STp->buffer)->b_data[3] >= 8) {
STp600drivers/scsi/st.cSTp->drv_buffer = ((STp->buffer)->b_data[2] >> 4) & 7;
STp601drivers/scsi/st.cSTp->density = (STp->buffer)->b_data[4];
STp602drivers/scsi/st.cSTp->block_size = (STp->buffer)->b_data[9] * 65536 +
STp603drivers/scsi/st.c(STp->buffer)->b_data[10] * 256 + (STp->buffer)->b_data[11];
STp607drivers/scsi/st.cdev, STp->density, (STp->buffer)->b_data[5] * 65536 +
STp608drivers/scsi/st.c(STp->buffer)->b_data[6] * 256 + (STp->buffer)->b_data[7],
STp609drivers/scsi/st.cSTp->drv_buffer);
STp613drivers/scsi/st.cif (STp->block_size > (STp->buffer)->buffer_size &&
STp614drivers/scsi/st.c!enlarge_buffer(STp->buffer, STp->block_size, STp->restr_dma)) {
STp616drivers/scsi/st.cSTp->block_size);
STp617drivers/scsi/st.c(STp->buffer)->in_use = 0;
STp618drivers/scsi/st.cSTp->in_use = 0;
STp621drivers/scsi/st.cSTp->drv_write_prot = ((STp->buffer)->b_data[2] & 0x80) != 0;
STp625drivers/scsi/st.cif (STp->block_size > 0)
STp626drivers/scsi/st.c(STp->buffer)->buffer_blocks = st_buffer_size / STp->block_size;
STp628drivers/scsi/st.c(STp->buffer)->buffer_blocks = 1;
STp629drivers/scsi/st.c(STp->buffer)->buffer_bytes = (STp->buffer)->read_pointer = 0;
STp634drivers/scsi/st.cSTp->block_size, (STp->buffer)->buffer_size,
STp635drivers/scsi/st.c(STp->buffer)->buffer_blocks);
STp638drivers/scsi/st.cif (STp->drv_write_prot) {
STp639drivers/scsi/st.cSTp->write_prot = 1;
STp645drivers/scsi/st.c(STp->buffer)->in_use = 0;
STp646drivers/scsi/st.cSTp->buffer = 0;
STp647drivers/scsi/st.cSTp->in_use = 0;
STp667drivers/scsi/st.cScsi_Tape * STp;
STp672drivers/scsi/st.cSTp = &(scsi_tapes[dev]);
STp674drivers/scsi/st.cif ( STp->rw == ST_WRITING && !(STp->device)->was_reset) {
STp676drivers/scsi/st.cresult = flush_write_buffer(STp);
STp683drivers/scsi/st.cdev, STp->nbr_waits, STp->nbr_finished);
STp691drivers/scsi/st.ccmd[4] = 1 + STp->two_fm;
STp693drivers/scsi/st.cSCpnt = st_do_scsi(NULL, STp, cmd, 0, ST_TIMEOUT, MAX_WRITE_RETRIES);
STp699drivers/scsi/st.cif ((STp->buffer)->last_result_fatal != 0)
STp702drivers/scsi/st.cif ((STp->mt_status)->mt_fileno >= 0)
STp703drivers/scsi/st.c(STp->mt_status)->mt_fileno++ ;
STp704drivers/scsi/st.cSTp->drv_block = 0;
STp705drivers/scsi/st.cif (STp->two_fm)
STp706drivers/scsi/st.cback_over_eof(STp);
STp716drivers/scsi/st.celse if (!STp->rew_at_close) {
STp720drivers/scsi/st.cif ((STp->eof == ST_FM) && !STp->eof_hit)
STp721drivers/scsi/st.cback_over_eof(STp);
STp725drivers/scsi/st.cif (STp->rew_at_close)
STp728drivers/scsi/st.cif (STp->door_locked == ST_LOCKED_AUTO)
STp731drivers/scsi/st.cif (STp->buffer != NULL) {
STp732drivers/scsi/st.cnormalize_buffer(STp->buffer);
STp733drivers/scsi/st.c(STp->buffer)->in_use = 0;
STp735drivers/scsi/st.cSTp->in_use = 0;
STp755drivers/scsi/st.cScsi_Tape * STp;
STp758drivers/scsi/st.cSTp = &(scsi_tapes[dev]);
STp759drivers/scsi/st.cif (STp->ready != ST_READY)
STp766drivers/scsi/st.cif( STp->device->was_reset )
STp770drivers/scsi/st.cif (!STp->in_use) {
STp776drivers/scsi/st.cif (STp->write_prot)
STp779drivers/scsi/st.cif (STp->block_size == 0 &&
STp780drivers/scsi/st.ccount > (STp->buffer)->buffer_size &&
STp781drivers/scsi/st.c!enlarge_buffer(STp->buffer, count, STp->restr_dma))
STp784drivers/scsi/st.cif (STp->do_auto_lock && STp->door_locked == ST_UNLOCKED &&
STp786drivers/scsi/st.cSTp->door_locked = ST_LOCKED_AUTO;
STp788drivers/scsi/st.cif (STp->rw == ST_READING) {
STp792drivers/scsi/st.cSTp->rw = ST_WRITING;
STp795drivers/scsi/st.cif (STp->moves_after_eof < 255)
STp796drivers/scsi/st.cSTp->moves_after_eof++;
STp798drivers/scsi/st.cif ((STp->buffer)->writing) {
STp799drivers/scsi/st.cwrite_behind_check(STp);
STp800drivers/scsi/st.cif ((STp->buffer)->last_result_fatal) {
STp804drivers/scsi/st.c(STp->buffer)->last_result);
STp806drivers/scsi/st.cif ((STp->buffer)->last_result == INT_MAX) {
STp808drivers/scsi/st.cSTp->eof = ST_EOM_OK;
STp815drivers/scsi/st.cif (STp->eof == ST_EOM_OK)
STp817drivers/scsi/st.celse if (STp->eof == ST_EOM_ERROR)
STp820drivers/scsi/st.cif (!STp->do_buffer_writes) {
STp821drivers/scsi/st.cif (STp->block_size != 0 && (count % STp->block_size) != 0)
STp826drivers/scsi/st.cwrite_threshold = (STp->buffer)->buffer_blocks * STp->block_size;
STp827drivers/scsi/st.cif (!STp->do_async_writes)
STp834drivers/scsi/st.ccmd[1] = (STp->block_size != 0);
STp836drivers/scsi/st.cSTp->rw = ST_WRITING;
STp839drivers/scsi/st.cwhile((STp->block_size == 0 && !STp->do_async_writes && count > 0) ||
STp840drivers/scsi/st.c(STp->block_size != 0 &&
STp841drivers/scsi/st.c(STp->buffer)->buffer_bytes + count > write_threshold))
STp844drivers/scsi/st.cif (STp->block_size == 0)
STp847drivers/scsi/st.cdo_count = (STp->buffer)->buffer_blocks * STp->block_size -
STp848drivers/scsi/st.c(STp->buffer)->buffer_bytes;
STp852drivers/scsi/st.cmemcpy_fromfs((STp->buffer)->b_data +
STp853drivers/scsi/st.c(STp->buffer)->buffer_bytes, b_point, do_count);
STp855drivers/scsi/st.cif (STp->block_size == 0)
STp858drivers/scsi/st.cblks = ((STp->buffer)->buffer_bytes + do_count) /
STp859drivers/scsi/st.cSTp->block_size;
STp860drivers/scsi/st.ctransfer = blks * STp->block_size;
STp866drivers/scsi/st.cSCpnt = st_do_scsi(SCpnt, STp, cmd, transfer, ST_TIMEOUT, MAX_WRITE_RETRIES);
STp870drivers/scsi/st.cif ((STp->buffer)->last_result_fatal != 0) {
STp877drivers/scsi/st.cif (STp->block_size != 0 && (SCpnt->sense_buffer[0] & 0x80) != 0)
STp881drivers/scsi/st.celse if (STp->block_size == 0 &&
STp886drivers/scsi/st.cif (STp->block_size != 0)
STp887drivers/scsi/st.ctransfer *= STp->block_size;
STp891drivers/scsi/st.cif (STp->drv_block >= 0) {
STp892drivers/scsi/st.cif (STp->block_size == 0 && transfer < do_count)
STp893drivers/scsi/st.cSTp->drv_block++;
STp894drivers/scsi/st.celse if (STp->block_size != 0)
STp895drivers/scsi/st.cSTp->drv_block += (do_count - transfer) / STp->block_size;
STp897drivers/scsi/st.cSTp->eof = ST_EOM_OK;
STp906drivers/scsi/st.cSTp->eof = ST_EOM_ERROR;
STp907drivers/scsi/st.cSTp->drv_block = (-1);    /* Too cautious? */
STp916drivers/scsi/st.cSTp->drv_block = (-1);    /* Too cautious? */
STp921drivers/scsi/st.c(STp->buffer)->buffer_bytes = 0;
STp922drivers/scsi/st.cSTp->dirty = 0;
STp931drivers/scsi/st.cif (STp->drv_block >= 0) {
STp932drivers/scsi/st.cif (STp->block_size == 0)
STp933drivers/scsi/st.cSTp->drv_block++;
STp935drivers/scsi/st.cSTp->drv_block += blks;
STp937drivers/scsi/st.c(STp->buffer)->buffer_bytes = 0;
STp938drivers/scsi/st.cSTp->dirty = 0;
STp941drivers/scsi/st.cSTp->dirty = 1;
STp942drivers/scsi/st.cmemcpy_fromfs((STp->buffer)->b_data +
STp943drivers/scsi/st.c(STp->buffer)->buffer_bytes,b_point,count);
STp945drivers/scsi/st.c(STp->buffer)->buffer_bytes += count;
STp949drivers/scsi/st.cif (doing_write && (STp->buffer)->last_result_fatal != 0) {
STp951drivers/scsi/st.creturn (STp->buffer)->last_result_fatal;
STp954drivers/scsi/st.cif (STp->do_async_writes &&
STp955drivers/scsi/st.c((STp->buffer)->buffer_bytes >= STp->write_threshold ||
STp956drivers/scsi/st.cSTp->block_size == 0) ) {
STp959drivers/scsi/st.cSCpnt = allocate_device(NULL, STp->device, 1);
STp963drivers/scsi/st.cif (STp->block_size == 0)
STp964drivers/scsi/st.c(STp->buffer)->writing = (STp->buffer)->buffer_bytes;
STp966drivers/scsi/st.c(STp->buffer)->writing = ((STp->buffer)->buffer_bytes /
STp967drivers/scsi/st.cSTp->block_size) * STp->block_size;
STp968drivers/scsi/st.cSTp->dirty = !((STp->buffer)->writing ==
STp969drivers/scsi/st.c(STp->buffer)->buffer_bytes);
STp971drivers/scsi/st.cif (STp->block_size == 0)
STp972drivers/scsi/st.cblks = (STp->buffer)->writing;
STp974drivers/scsi/st.cblks = (STp->buffer)->writing / STp->block_size;
STp978drivers/scsi/st.cSTp->sem = MUTEX_LOCKED;
STp979drivers/scsi/st.cSCpnt->request.sem = &(STp->sem);
STp981drivers/scsi/st.cSCpnt->request.rq_dev = STp->devt;
STp983drivers/scsi/st.cSTp->write_pending = 1;
STp987drivers/scsi/st.c(void *) cmd, (STp->buffer)->b_data,
STp988drivers/scsi/st.c(STp->buffer)->writing,
STp994drivers/scsi/st.cSTp->at_sm &= (total != 0);
STp1007drivers/scsi/st.cScsi_Tape * STp;
STp1010drivers/scsi/st.cSTp = &(scsi_tapes[dev]);
STp1011drivers/scsi/st.cif (STp->ready != ST_READY)
STp1014drivers/scsi/st.cif (!STp->in_use) {
STp1020drivers/scsi/st.cif (STp->block_size == 0 &&
STp1021drivers/scsi/st.ccount > (STp->buffer)->buffer_size &&
STp1022drivers/scsi/st.c!enlarge_buffer(STp->buffer, count, STp->restr_dma))
STp1025drivers/scsi/st.cif (!(STp->do_read_ahead) && STp->block_size != 0 &&
STp1026drivers/scsi/st.c(count % STp->block_size) != 0)
STp1029drivers/scsi/st.cif (STp->do_auto_lock && STp->door_locked == ST_UNLOCKED &&
STp1031drivers/scsi/st.cSTp->door_locked = ST_LOCKED_AUTO;
STp1033drivers/scsi/st.cif (STp->rw == ST_WRITING) {
STp1037drivers/scsi/st.cSTp->rw = ST_READING;
STp1039drivers/scsi/st.cif (STp->moves_after_eof < 255)
STp1040drivers/scsi/st.cSTp->moves_after_eof++;
STp1043drivers/scsi/st.cif (debugging && STp->eof != ST_NOEOF)
STp1045drivers/scsi/st.c(STp->buffer)->buffer_bytes);
STp1047drivers/scsi/st.cif (((STp->buffer)->buffer_bytes == 0) &&
STp1048drivers/scsi/st.c(STp->eof == ST_EOM_OK || STp->eof == ST_EOD))
STp1051drivers/scsi/st.cSTp->rw = ST_READING;
STp1055drivers/scsi/st.cif ((STp->buffer)->buffer_bytes == 0 &&
STp1056drivers/scsi/st.cSTp->eof == ST_NOEOF) {
STp1060drivers/scsi/st.ccmd[1] = (STp->block_size != 0);
STp1061drivers/scsi/st.cif (STp->block_size == 0)
STp1064drivers/scsi/st.cif (STp->do_read_ahead) {
STp1065drivers/scsi/st.cblks = (STp->buffer)->buffer_blocks;
STp1066drivers/scsi/st.cbytes = blks * STp->block_size;
STp1070drivers/scsi/st.cif (bytes > (STp->buffer)->buffer_size)
STp1071drivers/scsi/st.cbytes = (STp->buffer)->buffer_size;
STp1072drivers/scsi/st.cblks = bytes / STp->block_size;
STp1073drivers/scsi/st.cbytes = blks * STp->block_size;
STp1080drivers/scsi/st.cSCpnt = st_do_scsi(SCpnt, STp, cmd, bytes, ST_TIMEOUT, MAX_RETRIES);
STp1084drivers/scsi/st.c(STp->buffer)->read_pointer = 0;
STp1085drivers/scsi/st.cSTp->eof_hit = 0;
STp1086drivers/scsi/st.cSTp->at_sm = 0;
STp1088drivers/scsi/st.cif ((STp->buffer)->last_result_fatal) {
STp1108drivers/scsi/st.cif (STp->block_size == 0 &&
STp1113drivers/scsi/st.cif (STp->block_size == 0) {
STp1116drivers/scsi/st.c(STp->buffer)->buffer_bytes = bytes - transfer;
STp1125drivers/scsi/st.cSTp->eof = ST_EOM_OK;
STp1126drivers/scsi/st.cif (STp->block_size == 0)
STp1127drivers/scsi/st.c(STp->buffer)->buffer_bytes = bytes - transfer;
STp1129drivers/scsi/st.c(STp->buffer)->buffer_bytes =
STp1130drivers/scsi/st.cbytes - transfer * STp->block_size;
STp1134drivers/scsi/st.c(STp->buffer)->buffer_bytes);
STp1138drivers/scsi/st.cSTp->eof = ST_FM;
STp1139drivers/scsi/st.cif (STp->block_size == 0)
STp1140drivers/scsi/st.c(STp->buffer)->buffer_bytes = 0;
STp1142drivers/scsi/st.c(STp->buffer)->buffer_bytes =
STp1143drivers/scsi/st.cbytes - transfer * STp->block_size;
STp1148drivers/scsi/st.cdev, (STp->buffer)->buffer_bytes, total);
STp1158drivers/scsi/st.cSTp->drv_block = (-1);
STp1161drivers/scsi/st.celse if (STp->moves_after_eof == 1 &&
STp1169drivers/scsi/st.cSTp->eof = ST_EOD;
STp1177drivers/scsi/st.ctransfer = (STp->buffer)->last_result_fatal;
STp1183drivers/scsi/st.c(STp->buffer)->buffer_bytes = bytes;
STp1185drivers/scsi/st.cif (STp->drv_block >= 0) {
STp1186drivers/scsi/st.cif (STp->block_size == 0)
STp1187drivers/scsi/st.cSTp->drv_block++;
STp1189drivers/scsi/st.cSTp->drv_block += (STp->buffer)->buffer_bytes / STp->block_size;
STp1195drivers/scsi/st.cif ((STp->buffer)->buffer_bytes > 0) {
STp1197drivers/scsi/st.cif (debugging && STp->eof != ST_NOEOF)
STp1199drivers/scsi/st.c(STp->buffer)->buffer_bytes, count - total);
STp1201drivers/scsi/st.ctransfer = (STp->buffer)->buffer_bytes < count - total ?
STp1202drivers/scsi/st.c(STp->buffer)->buffer_bytes : count - total;
STp1203drivers/scsi/st.cmemcpy_tofs(buf, (STp->buffer)->b_data +
STp1204drivers/scsi/st.c(STp->buffer)->read_pointer,transfer);
STp1208drivers/scsi/st.c(STp->buffer)->buffer_bytes -= transfer;
STp1209drivers/scsi/st.c(STp->buffer)->read_pointer += transfer;
STp1211drivers/scsi/st.celse if (STp->eof != ST_NOEOF) {
STp1212drivers/scsi/st.cSTp->eof_hit = 1;
STp1215drivers/scsi/st.cif (total == 0 && STp->eof == ST_FM) {
STp1216drivers/scsi/st.cSTp->eof = ST_NOEOF;
STp1217drivers/scsi/st.cSTp->drv_block = 0;
STp1218drivers/scsi/st.cif (STp->moves_after_eof > 1)
STp1219drivers/scsi/st.cSTp->moves_after_eof = 0;
STp1220drivers/scsi/st.cif ((STp->mt_status)->mt_fileno >= 0)
STp1221drivers/scsi/st.c(STp->mt_status)->mt_fileno++;
STp1223drivers/scsi/st.cif (total == 0 && STp->eof == ST_EOM_OK)
STp1228drivers/scsi/st.cif (STp->block_size == 0)
STp1246drivers/scsi/st.cScsi_Tape *STp;
STp1249drivers/scsi/st.cSTp = &(scsi_tapes[dev]);
STp1251drivers/scsi/st.cSTp->do_buffer_writes = (options & MT_ST_BUFFER_WRITES) != 0;
STp1252drivers/scsi/st.cSTp->do_async_writes  = (options & MT_ST_ASYNC_WRITES) != 0;
STp1253drivers/scsi/st.cSTp->do_read_ahead    = (options & MT_ST_READ_AHEAD) != 0;
STp1254drivers/scsi/st.cSTp->two_fm      = (options & MT_ST_TWO_FM) != 0;
STp1255drivers/scsi/st.cSTp->fast_mteom    = (options & MT_ST_FAST_MTEOM) != 0;
STp1256drivers/scsi/st.cSTp->do_auto_lock     = (options & MT_ST_AUTO_LOCK) != 0;
STp1261drivers/scsi/st.cdev, STp->do_buffer_writes, STp->do_async_writes, STp->do_read_ahead);
STp1264drivers/scsi/st.cdev, STp->two_fm, STp->fast_mteom, STp->do_auto_lock, debugging);
STp1274drivers/scsi/st.cSTp->write_threshold = value;
STp1277drivers/scsi/st.cSTp->write_threshold);
STp1297drivers/scsi/st.cScsi_Tape * STp;
STp1301drivers/scsi/st.cSTp = &(scsi_tapes[dev]);
STp1302drivers/scsi/st.cif (STp->ready != ST_READY && cmd_in != MTLOAD)
STp1304drivers/scsi/st.cfileno = (STp->mt_status)->mt_fileno ;
STp1305drivers/scsi/st.cblkno = STp->drv_block;
STp1306drivers/scsi/st.cat_sm = STp->at_sm;
STp1423drivers/scsi/st.cif (STp->write_prot)
STp1498drivers/scsi/st.cif (!STp->fast_mteom) {
STp1501drivers/scsi/st.cfileno = (STp->mt_status)->mt_fileno ;
STp1502drivers/scsi/st.cif (STp->eof == ST_EOD || STp->eof == ST_EOM_OK)
STp1521drivers/scsi/st.cif (STp->write_prot)
STp1554drivers/scsi/st.cif ((STp->device)->scsi_level < SCSI_2) {
STp1583drivers/scsi/st.cif (STp->dirty || (STp->buffer)->buffer_bytes != 0)
STp1587drivers/scsi/st.c(arg < STp->min_block || arg > STp->max_block ||
STp1595drivers/scsi/st.cmemset((STp->buffer)->b_data, 0, 12);
STp1597drivers/scsi/st.c(STp->buffer)->b_data[2] = (arg & 7) << 4;
STp1599drivers/scsi/st.c(STp->buffer)->b_data[2] = 
STp1600drivers/scsi/st.cSTp->drv_buffer << 4;
STp1601drivers/scsi/st.c(STp->buffer)->b_data[3] = 8;     /* block descriptor length */
STp1603drivers/scsi/st.c(STp->buffer)->b_data[4] = arg;
STp1605drivers/scsi/st.c(STp->buffer)->b_data[4] = STp->density;
STp1609drivers/scsi/st.cltmp = STp->block_size;
STp1610drivers/scsi/st.c(STp->buffer)->b_data[9] = (ltmp >> 16);
STp1611drivers/scsi/st.c(STp->buffer)->b_data[10] = (ltmp >> 8);
STp1612drivers/scsi/st.c(STp->buffer)->b_data[11] = ltmp;
STp1618drivers/scsi/st.c(STp->buffer)->b_data[9] * 65536 +
STp1619drivers/scsi/st.c(STp->buffer)->b_data[10] * 256 +
STp1620drivers/scsi/st.c(STp->buffer)->b_data[11]);
STp1623drivers/scsi/st.c(STp->buffer)->b_data[4]);
STp1626drivers/scsi/st.c((STp->buffer)->b_data[2] >> 4) & 7);
STp1634drivers/scsi/st.cSCpnt = st_do_scsi(NULL, STp, cmd, datalen, timeout, MAX_RETRIES);
STp1638drivers/scsi/st.cioctl_result = (STp->buffer)->last_result_fatal;
STp1643drivers/scsi/st.cSTp->moves_after_eof = 0;
STp1645drivers/scsi/st.cSTp->moves_after_eof = 1;
STp1648drivers/scsi/st.cSTp->drv_block = blkno;
STp1649drivers/scsi/st.c(STp->mt_status)->mt_fileno = fileno;
STp1650drivers/scsi/st.cSTp->at_sm = at_sm;
STp1653drivers/scsi/st.cSTp->drv_block = (STp->mt_status)->mt_fileno = (-1);
STp1654drivers/scsi/st.cSTp->at_sm = 0;
STp1657drivers/scsi/st.cSTp->door_locked = ST_LOCKED_EXPLICIT;
STp1659drivers/scsi/st.cSTp->door_locked = ST_UNLOCKED;
STp1665drivers/scsi/st.cSTp->block_size = arg;
STp1667drivers/scsi/st.c(STp->buffer)->buffer_blocks =
STp1668drivers/scsi/st.c(STp->buffer)->buffer_size / STp->block_size;
STp1669drivers/scsi/st.c(STp->buffer)->buffer_bytes = (STp->buffer)->read_pointer = 0;
STp1672drivers/scsi/st.cSTp->drv_buffer = (arg & 7);
STp1674drivers/scsi/st.cSTp->density = arg;
STp1676drivers/scsi/st.cSTp->eof = ST_EOD;
STp1677drivers/scsi/st.cSTp->eof_hit = 0;
STp1680drivers/scsi/st.cSTp->eof = ST_NOEOF;
STp1681drivers/scsi/st.cSTp->eof_hit = 0;
STp1684drivers/scsi/st.cSTp->rew_at_close = 0;
STp1686drivers/scsi/st.cSTp->rew_at_close = (MINOR(inode->i_rdev) & 0x80) == 0;
STp1692drivers/scsi/st.cSTp->eof = ST_EOM_OK;
STp1693drivers/scsi/st.cSTp->eof_hit = 0;
STp1694drivers/scsi/st.cSTp->drv_block = 0;
STp1703drivers/scsi/st.c(STp->mt_status)->mt_fileno = fileno - undone ;
STp1705drivers/scsi/st.c(STp->mt_status)->mt_fileno = fileno;
STp1706drivers/scsi/st.cSTp->drv_block = 0;
STp1709drivers/scsi/st.c(STp->mt_status)->mt_fileno = fileno + undone ;
STp1710drivers/scsi/st.cSTp->drv_block = 0;
STp1714drivers/scsi/st.c(STp->mt_status)->mt_fileno++;
STp1715drivers/scsi/st.cSTp->drv_block = 0;
STp1719drivers/scsi/st.cSTp->drv_block = blkno - undone;
STp1721drivers/scsi/st.cSTp->drv_block = (-1);
STp1726drivers/scsi/st.c(STp->mt_status)->mt_fileno--;
STp1727drivers/scsi/st.cSTp->drv_block = (-1);
STp1731drivers/scsi/st.cSTp->drv_block = blkno + undone;
STp1733drivers/scsi/st.cSTp->drv_block = (-1);
STp1737drivers/scsi/st.c(STp->mt_status)->mt_fileno = (-1);
STp1738drivers/scsi/st.cSTp->drv_block = (-1);
STp1740drivers/scsi/st.cif (STp->eof == ST_NOEOF &&
STp1742drivers/scsi/st.cSTp->eof = ST_EOD;
STp1744drivers/scsi/st.cSTp->door_locked = ST_LOCK_FAILS;
STp1762drivers/scsi/st.cScsi_Tape *STp;
STp1765drivers/scsi/st.cSTp = &(scsi_tapes[dev]);
STp1767drivers/scsi/st.cif (debugging && !STp->in_use) {
STp1779drivers/scsi/st.creturn scsi_ioctl(STp->device, cmd_in, (void *) arg);
STp1794drivers/scsi/st.cif (!(STp->device)->was_reset) {
STp1796drivers/scsi/st.cif (STp->eof_hit) {
STp1799drivers/scsi/st.c(STp->mt_status)->mt_fileno += 1;
STp1803drivers/scsi/st.c(STp->mt_status)->mt_fileno += 1;
STp1827drivers/scsi/st.cSTp->device->was_reset = 0;
STp1828drivers/scsi/st.cif (STp->door_locked != ST_UNLOCKED &&
STp1829drivers/scsi/st.cSTp->door_locked != ST_LOCK_FAILS) {
STp1833drivers/scsi/st.cSTp->door_locked = ST_UNLOCKED;
STp1841drivers/scsi/st.cSTp->rw = ST_IDLE;  /* Prevent automatic WEOF */
STp1843drivers/scsi/st.cif (mtc.mt_op == MTOFFL && STp->door_locked != ST_UNLOCKED)
STp1864drivers/scsi/st.c(STp->mt_status)->mt_dsreg =
STp1865drivers/scsi/st.c((STp->block_size << MT_ST_BLKSIZE_SHIFT) & MT_ST_BLKSIZE_MASK) |
STp1866drivers/scsi/st.c((STp->density << MT_ST_DENSITY_SHIFT) & MT_ST_DENSITY_MASK);
STp1867drivers/scsi/st.c(STp->mt_status)->mt_blkno = STp->drv_block;
STp1868drivers/scsi/st.cif (STp->block_size != 0) {
STp1869drivers/scsi/st.cif (STp->rw == ST_WRITING)
STp1870drivers/scsi/st.c(STp->mt_status)->mt_blkno +=
STp1871drivers/scsi/st.c(STp->buffer)->buffer_bytes / STp->block_size;
STp1872drivers/scsi/st.celse if (STp->rw == ST_READING)
STp1873drivers/scsi/st.c(STp->mt_status)->mt_blkno -= ((STp->buffer)->buffer_bytes +
STp1874drivers/scsi/st.cSTp->block_size - 1) / STp->block_size;
STp1877drivers/scsi/st.c(STp->mt_status)->mt_gstat = 0;
STp1878drivers/scsi/st.cif (STp->drv_write_prot)
STp1879drivers/scsi/st.c(STp->mt_status)->mt_gstat |= GMT_WR_PROT(0xffffffff);
STp1880drivers/scsi/st.cif ((STp->mt_status)->mt_blkno == 0) {
STp1881drivers/scsi/st.cif ((STp->mt_status)->mt_fileno == 0)
STp1882drivers/scsi/st.c(STp->mt_status)->mt_gstat |= GMT_BOT(0xffffffff);
STp1884drivers/scsi/st.c(STp->mt_status)->mt_gstat |= GMT_EOF(0xffffffff);
STp1886drivers/scsi/st.cif (STp->eof == ST_EOM_OK || STp->eof == ST_EOM_ERROR)
STp1887drivers/scsi/st.c(STp->mt_status)->mt_gstat |= GMT_EOT(0xffffffff);
STp1888drivers/scsi/st.celse if (STp->eof == ST_EOD)
STp1889drivers/scsi/st.c(STp->mt_status)->mt_gstat |= GMT_EOD(0xffffffff);
STp1890drivers/scsi/st.cif (STp->density == 1)
STp1891drivers/scsi/st.c(STp->mt_status)->mt_gstat |= GMT_D_800(0xffffffff);
STp1892drivers/scsi/st.celse if (STp->density == 2)
STp1893drivers/scsi/st.c(STp->mt_status)->mt_gstat |= GMT_D_1600(0xffffffff);
STp1894drivers/scsi/st.celse if (STp->density == 3)
STp1895drivers/scsi/st.c(STp->mt_status)->mt_gstat |= GMT_D_6250(0xffffffff);
STp1896drivers/scsi/st.cif (STp->ready == ST_READY)
STp1897drivers/scsi/st.c(STp->mt_status)->mt_gstat |= GMT_ONLINE(0xffffffff);
STp1898drivers/scsi/st.cif (STp->ready == ST_NO_TAPE)
STp1899drivers/scsi/st.c(STp->mt_status)->mt_gstat |= GMT_DR_OPEN(0xffffffff);
STp1900drivers/scsi/st.cif (STp->at_sm)
STp1901drivers/scsi/st.c(STp->mt_status)->mt_gstat |= GMT_SM(0xffffffff);
STp1903drivers/scsi/st.cmemcpy_tofs((char *)arg, (char *)(STp->mt_status),
STp1906drivers/scsi/st.c(STp->mt_status)->mt_erreg = 0;  /* Clear after read */
STp1910drivers/scsi/st.cif (STp->ready != ST_READY)
STp1928drivers/scsi/st.cif ((STp->device)->scsi_level < SCSI_2) {
STp1936drivers/scsi/st.cSCpnt = st_do_scsi(NULL, STp, scmd, 20, ST_TIMEOUT, MAX_READY_RETRIES);
STp1940drivers/scsi/st.cif ((STp->buffer)->last_result_fatal != 0) {
STp1950drivers/scsi/st.cif ((STp->device)->scsi_level < SCSI_2)
STp1951drivers/scsi/st.cmt_pos.mt_blkno = ((STp->buffer)->b_data[0] << 16) 
STp1952drivers/scsi/st.c+ ((STp->buffer)->b_data[1] << 8) 
STp1953drivers/scsi/st.c+ (STp->buffer)->b_data[2];
STp1955drivers/scsi/st.cmt_pos.mt_blkno = ((STp->buffer)->b_data[4] << 24)
STp1956drivers/scsi/st.c+ ((STp->buffer)->b_data[5] << 16) 
STp1957drivers/scsi/st.c+ ((STp->buffer)->b_data[6] << 8) 
STp1958drivers/scsi/st.c+ (STp->buffer)->b_data[7];
STp1968drivers/scsi/st.creturn scsi_ioctl(STp->device, cmd_in, (void *) arg);
STp2171drivers/scsi/st.cScsi_Tape * STp;
STp2205drivers/scsi/st.cSTp = &(scsi_tapes[i]);
STp2206drivers/scsi/st.cSTp->device = NULL;
STp2207drivers/scsi/st.cSTp->capacity = 0xfffff;
STp2208drivers/scsi/st.cSTp->dirty = 0;
STp2209drivers/scsi/st.cSTp->rw = ST_IDLE;
STp2210drivers/scsi/st.cSTp->eof = ST_NOEOF;
STp2211drivers/scsi/st.cSTp->waiting = NULL;
STp2212drivers/scsi/st.cSTp->in_use = 0;
STp2213drivers/scsi/st.cSTp->drv_buffer = 1;  /* Try buffering if no mode sense */
STp2214drivers/scsi/st.cSTp->density = 0;
STp2215drivers/scsi/st.cSTp->do_buffer_writes = ST_BUFFER_WRITES;
STp2216drivers/scsi/st.cSTp->do_async_writes = ST_ASYNC_WRITES;
STp2217drivers/scsi/st.cSTp->do_read_ahead = ST_READ_AHEAD;
STp2218drivers/scsi/st.cSTp->do_auto_lock = ST_AUTO_LOCK;
STp2219drivers/scsi/st.cSTp->two_fm = ST_TWO_FM;
STp2220drivers/scsi/st.cSTp->fast_mteom = ST_FAST_MTEOM;
STp2221drivers/scsi/st.cSTp->write_threshold = st_write_threshold;
STp2222drivers/scsi/st.cSTp->drv_block = 0;
STp2223drivers/scsi/st.cSTp->moves_after_eof = 1;
STp2224drivers/scsi/st.cSTp->at_sm = 0;
STp2225drivers/scsi/st.cSTp->mt_status = (struct mtget *) scsi_init_malloc(sizeof(struct mtget),