mirror of https://gitee.com/openkylin/linux.git
752 lines
18 KiB
C
752 lines
18 KiB
C
/*
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* drivers/s390/char/tape_std.c
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* standard tape device functions for ibm tapes.
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*
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* S390 and zSeries version
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* Copyright (C) 2001,2002 IBM Deutschland Entwicklung GmbH, IBM Corporation
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* Author(s): Carsten Otte <cotte@de.ibm.com>
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* Michael Holzheu <holzheu@de.ibm.com>
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* Tuan Ngo-Anh <ngoanh@de.ibm.com>
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* Martin Schwidefsky <schwidefsky@de.ibm.com>
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* Stefan Bader <shbader@de.ibm.com>
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*/
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#define KMSG_COMPONENT "tape"
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#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
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#include <linux/stddef.h>
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#include <linux/kernel.h>
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#include <linux/bio.h>
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#include <linux/timer.h>
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#include <asm/types.h>
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#include <asm/idals.h>
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#include <asm/ebcdic.h>
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#include <asm/tape390.h>
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#define TAPE_DBF_AREA tape_core_dbf
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#include "tape.h"
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#include "tape_std.h"
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/*
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* tape_std_assign
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*/
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static void
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tape_std_assign_timeout(unsigned long data)
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{
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struct tape_request * request;
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struct tape_device * device;
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int rc;
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request = (struct tape_request *) data;
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device = request->device;
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BUG_ON(!device);
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DBF_EVENT(3, "%08x: Assignment timeout. Device busy.\n",
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device->cdev_id);
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rc = tape_cancel_io(device, request);
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if(rc)
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DBF_EVENT(3, "(%s): Assign timeout: Cancel failed with rc = %i\n",
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dev_name(&device->cdev->dev), rc);
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}
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int
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tape_std_assign(struct tape_device *device)
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{
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int rc;
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struct timer_list timeout;
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struct tape_request *request;
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request = tape_alloc_request(2, 11);
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if (IS_ERR(request))
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return PTR_ERR(request);
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request->op = TO_ASSIGN;
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tape_ccw_cc(request->cpaddr, ASSIGN, 11, request->cpdata);
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tape_ccw_end(request->cpaddr + 1, NOP, 0, NULL);
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/*
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* The assign command sometimes blocks if the device is assigned
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* to another host (actually this shouldn't happen but it does).
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* So we set up a timeout for this call.
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*/
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init_timer_on_stack(&timeout);
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timeout.function = tape_std_assign_timeout;
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timeout.data = (unsigned long) request;
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timeout.expires = jiffies + 2 * HZ;
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add_timer(&timeout);
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rc = tape_do_io_interruptible(device, request);
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del_timer(&timeout);
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if (rc != 0) {
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DBF_EVENT(3, "%08x: assign failed - device might be busy\n",
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device->cdev_id);
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} else {
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DBF_EVENT(3, "%08x: Tape assigned\n", device->cdev_id);
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}
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tape_free_request(request);
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return rc;
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}
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/*
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* tape_std_unassign
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*/
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int
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tape_std_unassign (struct tape_device *device)
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{
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int rc;
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struct tape_request *request;
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if (device->tape_state == TS_NOT_OPER) {
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DBF_EVENT(3, "(%08x): Can't unassign device\n",
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device->cdev_id);
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return -EIO;
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}
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request = tape_alloc_request(2, 11);
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if (IS_ERR(request))
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return PTR_ERR(request);
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request->op = TO_UNASSIGN;
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tape_ccw_cc(request->cpaddr, UNASSIGN, 11, request->cpdata);
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tape_ccw_end(request->cpaddr + 1, NOP, 0, NULL);
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if ((rc = tape_do_io(device, request)) != 0) {
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DBF_EVENT(3, "%08x: Unassign failed\n", device->cdev_id);
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} else {
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DBF_EVENT(3, "%08x: Tape unassigned\n", device->cdev_id);
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}
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tape_free_request(request);
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return rc;
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}
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/*
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* TAPE390_DISPLAY: Show a string on the tape display.
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*/
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int
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tape_std_display(struct tape_device *device, struct display_struct *disp)
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{
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struct tape_request *request;
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int rc;
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request = tape_alloc_request(2, 17);
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if (IS_ERR(request)) {
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DBF_EVENT(3, "TAPE: load display failed\n");
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return PTR_ERR(request);
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}
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request->op = TO_DIS;
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*(unsigned char *) request->cpdata = disp->cntrl;
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DBF_EVENT(5, "TAPE: display cntrl=%04x\n", disp->cntrl);
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memcpy(((unsigned char *) request->cpdata) + 1, disp->message1, 8);
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memcpy(((unsigned char *) request->cpdata) + 9, disp->message2, 8);
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ASCEBC(((unsigned char*) request->cpdata) + 1, 16);
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tape_ccw_cc(request->cpaddr, LOAD_DISPLAY, 17, request->cpdata);
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tape_ccw_end(request->cpaddr + 1, NOP, 0, NULL);
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rc = tape_do_io_interruptible(device, request);
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tape_free_request(request);
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return rc;
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}
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/*
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* Read block id.
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*/
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int
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tape_std_read_block_id(struct tape_device *device, __u64 *id)
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{
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struct tape_request *request;
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int rc;
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request = tape_alloc_request(3, 8);
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if (IS_ERR(request))
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return PTR_ERR(request);
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request->op = TO_RBI;
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/* setup ccws */
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tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1, device->modeset_byte);
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tape_ccw_cc(request->cpaddr + 1, READ_BLOCK_ID, 8, request->cpdata);
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tape_ccw_end(request->cpaddr + 2, NOP, 0, NULL);
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/* execute it */
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rc = tape_do_io(device, request);
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if (rc == 0)
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/* Get result from read buffer. */
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*id = *(__u64 *) request->cpdata;
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tape_free_request(request);
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return rc;
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}
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int
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tape_std_terminate_write(struct tape_device *device)
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{
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int rc;
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if(device->required_tapemarks == 0)
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return 0;
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DBF_LH(5, "tape%d: terminate write %dxEOF\n", device->first_minor,
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device->required_tapemarks);
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rc = tape_mtop(device, MTWEOF, device->required_tapemarks);
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if (rc)
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return rc;
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device->required_tapemarks = 0;
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return tape_mtop(device, MTBSR, 1);
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}
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/*
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* MTLOAD: Loads the tape.
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* The default implementation just wait until the tape medium state changes
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* to MS_LOADED.
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*/
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int
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tape_std_mtload(struct tape_device *device, int count)
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{
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return wait_event_interruptible(device->state_change_wq,
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(device->medium_state == MS_LOADED));
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}
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/*
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* MTSETBLK: Set block size.
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*/
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int
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tape_std_mtsetblk(struct tape_device *device, int count)
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{
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struct idal_buffer *new;
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DBF_LH(6, "tape_std_mtsetblk(%d)\n", count);
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if (count <= 0) {
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/*
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* Just set block_size to 0. tapechar_read/tapechar_write
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* will realloc the idal buffer if a bigger one than the
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* current is needed.
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*/
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device->char_data.block_size = 0;
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return 0;
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}
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if (device->char_data.idal_buf != NULL &&
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device->char_data.idal_buf->size == count)
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/* We already have a idal buffer of that size. */
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return 0;
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if (count > MAX_BLOCKSIZE) {
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DBF_EVENT(3, "Invalid block size (%d > %d) given.\n",
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count, MAX_BLOCKSIZE);
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return -EINVAL;
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}
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/* Allocate a new idal buffer. */
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new = idal_buffer_alloc(count, 0);
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if (IS_ERR(new))
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return -ENOMEM;
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if (device->char_data.idal_buf != NULL)
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idal_buffer_free(device->char_data.idal_buf);
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device->char_data.idal_buf = new;
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device->char_data.block_size = count;
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DBF_LH(6, "new blocksize is %d\n", device->char_data.block_size);
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return 0;
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}
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/*
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* MTRESET: Set block size to 0.
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*/
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int
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tape_std_mtreset(struct tape_device *device, int count)
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{
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DBF_EVENT(6, "TCHAR:devreset:\n");
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device->char_data.block_size = 0;
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return 0;
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}
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/*
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* MTFSF: Forward space over 'count' file marks. The tape is positioned
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* at the EOT (End of Tape) side of the file mark.
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*/
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int
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tape_std_mtfsf(struct tape_device *device, int mt_count)
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{
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struct tape_request *request;
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struct ccw1 *ccw;
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request = tape_alloc_request(mt_count + 2, 0);
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if (IS_ERR(request))
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return PTR_ERR(request);
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request->op = TO_FSF;
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/* setup ccws */
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ccw = tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1,
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device->modeset_byte);
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ccw = tape_ccw_repeat(ccw, FORSPACEFILE, mt_count);
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ccw = tape_ccw_end(ccw, NOP, 0, NULL);
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/* execute it */
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return tape_do_io_free(device, request);
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}
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/*
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* MTFSR: Forward space over 'count' tape blocks (blocksize is set
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* via MTSETBLK.
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*/
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int
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tape_std_mtfsr(struct tape_device *device, int mt_count)
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{
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struct tape_request *request;
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struct ccw1 *ccw;
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int rc;
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request = tape_alloc_request(mt_count + 2, 0);
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if (IS_ERR(request))
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return PTR_ERR(request);
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request->op = TO_FSB;
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/* setup ccws */
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ccw = tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1,
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device->modeset_byte);
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ccw = tape_ccw_repeat(ccw, FORSPACEBLOCK, mt_count);
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ccw = tape_ccw_end(ccw, NOP, 0, NULL);
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/* execute it */
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rc = tape_do_io(device, request);
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if (rc == 0 && request->rescnt > 0) {
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DBF_LH(3, "FSR over tapemark\n");
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rc = 1;
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}
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tape_free_request(request);
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return rc;
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}
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/*
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* MTBSR: Backward space over 'count' tape blocks.
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* (blocksize is set via MTSETBLK.
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*/
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int
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tape_std_mtbsr(struct tape_device *device, int mt_count)
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{
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struct tape_request *request;
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struct ccw1 *ccw;
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int rc;
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request = tape_alloc_request(mt_count + 2, 0);
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if (IS_ERR(request))
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return PTR_ERR(request);
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request->op = TO_BSB;
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/* setup ccws */
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ccw = tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1,
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device->modeset_byte);
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ccw = tape_ccw_repeat(ccw, BACKSPACEBLOCK, mt_count);
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ccw = tape_ccw_end(ccw, NOP, 0, NULL);
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/* execute it */
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rc = tape_do_io(device, request);
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if (rc == 0 && request->rescnt > 0) {
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DBF_LH(3, "BSR over tapemark\n");
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rc = 1;
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}
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tape_free_request(request);
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return rc;
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}
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/*
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* MTWEOF: Write 'count' file marks at the current position.
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*/
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int
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tape_std_mtweof(struct tape_device *device, int mt_count)
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{
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struct tape_request *request;
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struct ccw1 *ccw;
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request = tape_alloc_request(mt_count + 2, 0);
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if (IS_ERR(request))
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return PTR_ERR(request);
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request->op = TO_WTM;
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/* setup ccws */
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ccw = tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1,
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device->modeset_byte);
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ccw = tape_ccw_repeat(ccw, WRITETAPEMARK, mt_count);
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ccw = tape_ccw_end(ccw, NOP, 0, NULL);
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/* execute it */
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return tape_do_io_free(device, request);
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}
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/*
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* MTBSFM: Backward space over 'count' file marks.
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* The tape is positioned at the BOT (Begin Of Tape) side of the
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* last skipped file mark.
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*/
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int
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tape_std_mtbsfm(struct tape_device *device, int mt_count)
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{
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struct tape_request *request;
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struct ccw1 *ccw;
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request = tape_alloc_request(mt_count + 2, 0);
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if (IS_ERR(request))
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return PTR_ERR(request);
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request->op = TO_BSF;
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/* setup ccws */
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ccw = tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1,
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device->modeset_byte);
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ccw = tape_ccw_repeat(ccw, BACKSPACEFILE, mt_count);
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ccw = tape_ccw_end(ccw, NOP, 0, NULL);
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/* execute it */
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return tape_do_io_free(device, request);
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}
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/*
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* MTBSF: Backward space over 'count' file marks. The tape is positioned at
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* the EOT (End of Tape) side of the last skipped file mark.
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*/
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int
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tape_std_mtbsf(struct tape_device *device, int mt_count)
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{
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struct tape_request *request;
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struct ccw1 *ccw;
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int rc;
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request = tape_alloc_request(mt_count + 2, 0);
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if (IS_ERR(request))
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return PTR_ERR(request);
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request->op = TO_BSF;
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/* setup ccws */
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ccw = tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1,
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device->modeset_byte);
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ccw = tape_ccw_repeat(ccw, BACKSPACEFILE, mt_count);
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ccw = tape_ccw_end(ccw, NOP, 0, NULL);
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/* execute it */
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rc = tape_do_io_free(device, request);
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if (rc == 0) {
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rc = tape_mtop(device, MTFSR, 1);
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if (rc > 0)
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rc = 0;
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}
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return rc;
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}
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/*
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* MTFSFM: Forward space over 'count' file marks.
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* The tape is positioned at the BOT (Begin Of Tape) side
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* of the last skipped file mark.
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*/
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int
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tape_std_mtfsfm(struct tape_device *device, int mt_count)
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{
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struct tape_request *request;
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struct ccw1 *ccw;
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int rc;
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request = tape_alloc_request(mt_count + 2, 0);
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if (IS_ERR(request))
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return PTR_ERR(request);
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request->op = TO_FSF;
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/* setup ccws */
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ccw = tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1,
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device->modeset_byte);
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ccw = tape_ccw_repeat(ccw, FORSPACEFILE, mt_count);
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ccw = tape_ccw_end(ccw, NOP, 0, NULL);
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/* execute it */
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rc = tape_do_io_free(device, request);
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if (rc == 0) {
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rc = tape_mtop(device, MTBSR, 1);
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if (rc > 0)
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rc = 0;
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}
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return rc;
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}
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/*
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* MTREW: Rewind the tape.
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*/
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int
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tape_std_mtrew(struct tape_device *device, int mt_count)
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{
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struct tape_request *request;
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request = tape_alloc_request(3, 0);
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if (IS_ERR(request))
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return PTR_ERR(request);
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request->op = TO_REW;
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/* setup ccws */
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tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1,
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device->modeset_byte);
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tape_ccw_cc(request->cpaddr + 1, REWIND, 0, NULL);
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tape_ccw_end(request->cpaddr + 2, NOP, 0, NULL);
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/* execute it */
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return tape_do_io_free(device, request);
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}
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/*
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* MTOFFL: Rewind the tape and put the drive off-line.
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* Implement 'rewind unload'
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*/
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int
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tape_std_mtoffl(struct tape_device *device, int mt_count)
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{
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struct tape_request *request;
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request = tape_alloc_request(3, 0);
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if (IS_ERR(request))
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return PTR_ERR(request);
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request->op = TO_RUN;
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/* setup ccws */
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tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1, device->modeset_byte);
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tape_ccw_cc(request->cpaddr + 1, REWIND_UNLOAD, 0, NULL);
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tape_ccw_end(request->cpaddr + 2, NOP, 0, NULL);
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/* execute it */
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return tape_do_io_free(device, request);
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}
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/*
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* MTNOP: 'No operation'.
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*/
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int
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tape_std_mtnop(struct tape_device *device, int mt_count)
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{
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struct tape_request *request;
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request = tape_alloc_request(2, 0);
|
|
if (IS_ERR(request))
|
|
return PTR_ERR(request);
|
|
request->op = TO_NOP;
|
|
/* setup ccws */
|
|
tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1, device->modeset_byte);
|
|
tape_ccw_end(request->cpaddr + 1, NOP, 0, NULL);
|
|
/* execute it */
|
|
return tape_do_io_free(device, request);
|
|
}
|
|
|
|
/*
|
|
* MTEOM: positions at the end of the portion of the tape already used
|
|
* for recordind data. MTEOM positions after the last file mark, ready for
|
|
* appending another file.
|
|
*/
|
|
int
|
|
tape_std_mteom(struct tape_device *device, int mt_count)
|
|
{
|
|
int rc;
|
|
|
|
/*
|
|
* Seek from the beginning of tape (rewind).
|
|
*/
|
|
if ((rc = tape_mtop(device, MTREW, 1)) < 0)
|
|
return rc;
|
|
|
|
/*
|
|
* The logical end of volume is given by two sewuential tapemarks.
|
|
* Look for this by skipping to the next file (over one tapemark)
|
|
* and then test for another one (fsr returns 1 if a tapemark was
|
|
* encountered).
|
|
*/
|
|
do {
|
|
if ((rc = tape_mtop(device, MTFSF, 1)) < 0)
|
|
return rc;
|
|
if ((rc = tape_mtop(device, MTFSR, 1)) < 0)
|
|
return rc;
|
|
} while (rc == 0);
|
|
|
|
return tape_mtop(device, MTBSR, 1);
|
|
}
|
|
|
|
/*
|
|
* MTRETEN: Retension the tape, i.e. forward space to end of tape and rewind.
|
|
*/
|
|
int
|
|
tape_std_mtreten(struct tape_device *device, int mt_count)
|
|
{
|
|
struct tape_request *request;
|
|
int rc;
|
|
|
|
request = tape_alloc_request(4, 0);
|
|
if (IS_ERR(request))
|
|
return PTR_ERR(request);
|
|
request->op = TO_FSF;
|
|
/* setup ccws */
|
|
tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1, device->modeset_byte);
|
|
tape_ccw_cc(request->cpaddr + 1,FORSPACEFILE, 0, NULL);
|
|
tape_ccw_cc(request->cpaddr + 2, NOP, 0, NULL);
|
|
tape_ccw_end(request->cpaddr + 3, CCW_CMD_TIC, 0, request->cpaddr);
|
|
/* execute it, MTRETEN rc gets ignored */
|
|
rc = tape_do_io_interruptible(device, request);
|
|
tape_free_request(request);
|
|
return tape_mtop(device, MTREW, 1);
|
|
}
|
|
|
|
/*
|
|
* MTERASE: erases the tape.
|
|
*/
|
|
int
|
|
tape_std_mterase(struct tape_device *device, int mt_count)
|
|
{
|
|
struct tape_request *request;
|
|
|
|
request = tape_alloc_request(6, 0);
|
|
if (IS_ERR(request))
|
|
return PTR_ERR(request);
|
|
request->op = TO_DSE;
|
|
/* setup ccws */
|
|
tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1, device->modeset_byte);
|
|
tape_ccw_cc(request->cpaddr + 1, REWIND, 0, NULL);
|
|
tape_ccw_cc(request->cpaddr + 2, ERASE_GAP, 0, NULL);
|
|
tape_ccw_cc(request->cpaddr + 3, DATA_SEC_ERASE, 0, NULL);
|
|
tape_ccw_cc(request->cpaddr + 4, REWIND, 0, NULL);
|
|
tape_ccw_end(request->cpaddr + 5, NOP, 0, NULL);
|
|
|
|
/* execute it */
|
|
return tape_do_io_free(device, request);
|
|
}
|
|
|
|
/*
|
|
* MTUNLOAD: Rewind the tape and unload it.
|
|
*/
|
|
int
|
|
tape_std_mtunload(struct tape_device *device, int mt_count)
|
|
{
|
|
return tape_mtop(device, MTOFFL, mt_count);
|
|
}
|
|
|
|
/*
|
|
* MTCOMPRESSION: used to enable compression.
|
|
* Sets the IDRC on/off.
|
|
*/
|
|
int
|
|
tape_std_mtcompression(struct tape_device *device, int mt_count)
|
|
{
|
|
struct tape_request *request;
|
|
|
|
if (mt_count < 0 || mt_count > 1) {
|
|
DBF_EXCEPTION(6, "xcom parm\n");
|
|
return -EINVAL;
|
|
}
|
|
request = tape_alloc_request(2, 0);
|
|
if (IS_ERR(request))
|
|
return PTR_ERR(request);
|
|
request->op = TO_NOP;
|
|
/* setup ccws */
|
|
if (mt_count == 0)
|
|
*device->modeset_byte &= ~0x08;
|
|
else
|
|
*device->modeset_byte |= 0x08;
|
|
tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1, device->modeset_byte);
|
|
tape_ccw_end(request->cpaddr + 1, NOP, 0, NULL);
|
|
/* execute it */
|
|
return tape_do_io_free(device, request);
|
|
}
|
|
|
|
/*
|
|
* Read Block
|
|
*/
|
|
struct tape_request *
|
|
tape_std_read_block(struct tape_device *device, size_t count)
|
|
{
|
|
struct tape_request *request;
|
|
|
|
/*
|
|
* We have to alloc 4 ccws in order to be able to transform request
|
|
* into a read backward request in error case.
|
|
*/
|
|
request = tape_alloc_request(4, 0);
|
|
if (IS_ERR(request)) {
|
|
DBF_EXCEPTION(6, "xrbl fail");
|
|
return request;
|
|
}
|
|
request->op = TO_RFO;
|
|
tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1, device->modeset_byte);
|
|
tape_ccw_end_idal(request->cpaddr + 1, READ_FORWARD,
|
|
device->char_data.idal_buf);
|
|
DBF_EVENT(6, "xrbl ccwg\n");
|
|
return request;
|
|
}
|
|
|
|
/*
|
|
* Read Block backward transformation function.
|
|
*/
|
|
void
|
|
tape_std_read_backward(struct tape_device *device, struct tape_request *request)
|
|
{
|
|
/*
|
|
* We have allocated 4 ccws in tape_std_read, so we can now
|
|
* transform the request to a read backward, followed by a
|
|
* forward space block.
|
|
*/
|
|
request->op = TO_RBA;
|
|
tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1, device->modeset_byte);
|
|
tape_ccw_cc_idal(request->cpaddr + 1, READ_BACKWARD,
|
|
device->char_data.idal_buf);
|
|
tape_ccw_cc(request->cpaddr + 2, FORSPACEBLOCK, 0, NULL);
|
|
tape_ccw_end(request->cpaddr + 3, NOP, 0, NULL);
|
|
DBF_EVENT(6, "xrop ccwg");}
|
|
|
|
/*
|
|
* Write Block
|
|
*/
|
|
struct tape_request *
|
|
tape_std_write_block(struct tape_device *device, size_t count)
|
|
{
|
|
struct tape_request *request;
|
|
|
|
request = tape_alloc_request(2, 0);
|
|
if (IS_ERR(request)) {
|
|
DBF_EXCEPTION(6, "xwbl fail\n");
|
|
return request;
|
|
}
|
|
request->op = TO_WRI;
|
|
tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1, device->modeset_byte);
|
|
tape_ccw_end_idal(request->cpaddr + 1, WRITE_CMD,
|
|
device->char_data.idal_buf);
|
|
DBF_EVENT(6, "xwbl ccwg\n");
|
|
return request;
|
|
}
|
|
|
|
/*
|
|
* This routine is called by frontend after an ENOSP on write
|
|
*/
|
|
void
|
|
tape_std_process_eov(struct tape_device *device)
|
|
{
|
|
/*
|
|
* End of volume: We have to backspace the last written record, then
|
|
* we TRY to write a tapemark and then backspace over the written TM
|
|
*/
|
|
if (tape_mtop(device, MTBSR, 1) == 0 &&
|
|
tape_mtop(device, MTWEOF, 1) == 0) {
|
|
tape_mtop(device, MTBSR, 1);
|
|
}
|
|
}
|
|
|
|
EXPORT_SYMBOL(tape_std_assign);
|
|
EXPORT_SYMBOL(tape_std_unassign);
|
|
EXPORT_SYMBOL(tape_std_display);
|
|
EXPORT_SYMBOL(tape_std_read_block_id);
|
|
EXPORT_SYMBOL(tape_std_mtload);
|
|
EXPORT_SYMBOL(tape_std_mtsetblk);
|
|
EXPORT_SYMBOL(tape_std_mtreset);
|
|
EXPORT_SYMBOL(tape_std_mtfsf);
|
|
EXPORT_SYMBOL(tape_std_mtfsr);
|
|
EXPORT_SYMBOL(tape_std_mtbsr);
|
|
EXPORT_SYMBOL(tape_std_mtweof);
|
|
EXPORT_SYMBOL(tape_std_mtbsfm);
|
|
EXPORT_SYMBOL(tape_std_mtbsf);
|
|
EXPORT_SYMBOL(tape_std_mtfsfm);
|
|
EXPORT_SYMBOL(tape_std_mtrew);
|
|
EXPORT_SYMBOL(tape_std_mtoffl);
|
|
EXPORT_SYMBOL(tape_std_mtnop);
|
|
EXPORT_SYMBOL(tape_std_mteom);
|
|
EXPORT_SYMBOL(tape_std_mtreten);
|
|
EXPORT_SYMBOL(tape_std_mterase);
|
|
EXPORT_SYMBOL(tape_std_mtunload);
|
|
EXPORT_SYMBOL(tape_std_mtcompression);
|
|
EXPORT_SYMBOL(tape_std_read_block);
|
|
EXPORT_SYMBOL(tape_std_read_backward);
|
|
EXPORT_SYMBOL(tape_std_write_block);
|
|
EXPORT_SYMBOL(tape_std_process_eov);
|