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-rw-r--r--drivers/s390/block/Kconfig10
-rw-r--r--drivers/s390/block/Makefile1
-rw-r--r--drivers/s390/block/dasd_cmb.c128
-rw-r--r--drivers/s390/block/dasd_ioctl.c22
4 files changed, 22 insertions, 139 deletions
diff --git a/drivers/s390/block/Kconfig b/drivers/s390/block/Kconfig
index 6f50cc9323d..baf9cc3ebae 100644
--- a/drivers/s390/block/Kconfig
+++ b/drivers/s390/block/Kconfig
@@ -55,14 +55,4 @@ config DASD_DIAG
Disks under VM. If you are not running under VM or unsure what it is,
say "N".
-config DASD_CMB
- tristate "Compatibility interface for DASD channel measurement blocks"
- depends on DASD
- help
- This driver provides an additional interface to the channel measurement
- facility, which is normally accessed though sysfs, with a set of
- ioctl functions specific to the dasd driver.
- This is only needed if you want to use applications written for
- linux-2.4 dasd channel measurement facility interface.
-
endif
diff --git a/drivers/s390/block/Makefile b/drivers/s390/block/Makefile
index 58c6780134f..163e97554f5 100644
--- a/drivers/s390/block/Makefile
+++ b/drivers/s390/block/Makefile
@@ -12,6 +12,5 @@ obj-$(CONFIG_DASD) += dasd_mod.o
obj-$(CONFIG_DASD_DIAG) += dasd_diag_mod.o
obj-$(CONFIG_DASD_ECKD) += dasd_eckd_mod.o
obj-$(CONFIG_DASD_FBA) += dasd_fba_mod.o
-obj-$(CONFIG_DASD_CMB) += dasd_cmb.o
obj-$(CONFIG_BLK_DEV_XPRAM) += xpram.o
obj-$(CONFIG_DCSSBLK) += dcssblk.o
diff --git a/drivers/s390/block/dasd_cmb.c b/drivers/s390/block/dasd_cmb.c
deleted file mode 100644
index e88f73ee72c..00000000000
--- a/drivers/s390/block/dasd_cmb.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * Linux on zSeries Channel Measurement Facility support
- * (dasd device driver interface)
- *
- * Copyright 2000,2003 IBM Corporation
- *
- * Author: Arnd Bergmann <arndb@de.ibm.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-#include <linux/init.h>
-#include <linux/module.h>
-#include <asm/ccwdev.h>
-#include <asm/cmb.h>
-
-#include "dasd_int.h"
-
-static int
-dasd_ioctl_cmf_enable(struct block_device *bdev, int no, long args)
-{
- struct dasd_device *device;
-
- device = bdev->bd_disk->private_data;
- if (!device)
- return -EINVAL;
-
- return enable_cmf(device->cdev);
-}
-
-static int
-dasd_ioctl_cmf_disable(struct block_device *bdev, int no, long args)
-{
- struct dasd_device *device;
-
- device = bdev->bd_disk->private_data;
- if (!device)
- return -EINVAL;
-
- return disable_cmf(device->cdev);
-}
-
-static int
-dasd_ioctl_readall_cmb(struct block_device *bdev, int no, long args)
-{
- struct dasd_device *device;
- struct cmbdata __user *udata;
- struct cmbdata data;
- size_t size;
- int ret;
-
- device = bdev->bd_disk->private_data;
- if (!device)
- return -EINVAL;
- udata = (void __user *) args;
- size = _IOC_SIZE(no);
-
- if (!access_ok(VERIFY_WRITE, udata, size))
- return -EFAULT;
- ret = cmf_readall(device->cdev, &data);
- if (ret)
- return ret;
- if (copy_to_user(udata, &data, min(size, sizeof(*udata))))
- return -EFAULT;
- return 0;
-}
-
-/* module initialization below here. dasd already provides a mechanism
- * to dynamically register ioctl functions, so we simply use this. */
-static inline int
-ioctl_reg(unsigned int no, dasd_ioctl_fn_t handler)
-{
- return dasd_ioctl_no_register(THIS_MODULE, no, handler);
-}
-
-static inline void
-ioctl_unreg(unsigned int no, dasd_ioctl_fn_t handler)
-{
- dasd_ioctl_no_unregister(THIS_MODULE, no, handler);
-}
-
-static void
-dasd_cmf_exit(void)
-{
- ioctl_unreg(BIODASDCMFENABLE, dasd_ioctl_cmf_enable);
- ioctl_unreg(BIODASDCMFDISABLE, dasd_ioctl_cmf_disable);
- ioctl_unreg(BIODASDREADALLCMB, dasd_ioctl_readall_cmb);
-}
-
-static int __init
-dasd_cmf_init(void)
-{
- int ret;
- ret = ioctl_reg (BIODASDCMFENABLE, dasd_ioctl_cmf_enable);
- if (ret)
- goto err;
- ret = ioctl_reg (BIODASDCMFDISABLE, dasd_ioctl_cmf_disable);
- if (ret)
- goto err;
- ret = ioctl_reg (BIODASDREADALLCMB, dasd_ioctl_readall_cmb);
- if (ret)
- goto err;
-
- return 0;
-err:
- dasd_cmf_exit();
-
- return ret;
-}
-
-module_init(dasd_cmf_init);
-module_exit(dasd_cmf_exit);
-
-MODULE_AUTHOR("Arnd Bergmann <arndb@de.ibm.com>");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("channel measurement facility interface for dasd\n"
- "Copyright 2003 IBM Corporation\n");
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index bb6caf46bbd..c8319bef273 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -16,6 +16,7 @@
#include <linux/blkpg.h>
#include <asm/ccwdev.h>
+#include <asm/cmb.h>
#include <asm/uaccess.h>
/* This is ugly... */
@@ -406,6 +407,21 @@ dasd_ioctl_set_ro(struct block_device *bdev, void __user *argp)
return dasd_set_feature(device->cdev, DASD_FEATURE_READONLY, intval);
}
+static int
+dasd_ioctl_readall_cmb(struct dasd_device *device, unsigned int cmd,
+ unsigned long arg)
+{
+ struct cmbdata __user *argp = (void __user *) arg;
+ size_t size = _IOC_SIZE(cmd);
+ struct cmbdata data;
+ int ret;
+
+ ret = cmf_readall(device->cdev, &data);
+ if (!ret && copy_to_user(argp, &data, min(size, sizeof(*argp))))
+ return -EFAULT;
+ return ret;
+}
+
int
dasd_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
@@ -447,6 +463,12 @@ dasd_ioctl(struct inode *inode, struct file *file,
return dasd_ioctl_set_ro(bdev, argp);
case DASDAPIVER:
return dasd_ioctl_api_version(argp);
+ case BIODASDCMFENABLE:
+ return enable_cmf(device->cdev);
+ case BIODASDCMFDISABLE:
+ return disable_cmf(device->cdev);
+ case BIODASDREADALLCMB:
+ return dasd_ioctl_readall_cmb(device, cmd, arg);
default:
/* if the discipline has an ioctl method try it. */
if (device->discipline->ioctl) {
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-30 10:15:16 +0000