* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (64 commits)
debugfs: use specified mode to possibly mark files read/write only
debugfs: Fix terminology inconsistency of dir name to mount debugfs filesystem.
xen: remove driver_data direct access of struct device from more drivers
usb: gadget: at91_udc: remove driver_data direct access of struct device
uml: remove driver_data direct access of struct device
block/ps3: remove driver_data direct access of struct device
s390: remove driver_data direct access of struct device
parport: remove driver_data direct access of struct device
parisc: remove driver_data direct access of struct device
of_serial: remove driver_data direct access of struct device
mips: remove driver_data direct access of struct device
ipmi: remove driver_data direct access of struct device
infiniband: ehca: remove driver_data direct access of struct device
ibmvscsi: gadget: at91_udc: remove driver_data direct access of struct device
hvcs: remove driver_data direct access of struct device
xen block: remove driver_data direct access of struct device
thermal: remove driver_data direct access of struct device
scsi: remove driver_data direct access of struct device
pcmcia: remove driver_data direct access of struct device
PCIE: remove driver_data direct access of struct device
...
Manually fix up trivial conflicts due to different direct driver_data
direct access fixups in drivers/block/{ps3disk.c,ps3vram.c}
/*
- * drivers/s390/char/con3215.c
- * 3215 line mode terminal driver.
+ * 3215 line mode terminal driver.
*
- * S390 version
- * Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
+ * Copyright IBM Corp. 1999, 2009
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
*
- * Updated:
- * Aug-2000: Added tab support
- * Dan Morrison, IBM Corporation (dmorriso@cse.buffalo.edu)
+ * Updated:
+ * Aug-2000: Added tab support
+ * Dan Morrison, IBM Corporation <dmorriso@cse.buffalo.edu>
*/
#include <linux/module.h>
#define RAW3215_CLOSING 32 /* set while in close process */
#define RAW3215_TIMER_RUNS 64 /* set if the output delay timer is on */
#define RAW3215_FLUSHING 128 /* set to flush buffer (no delay) */
+#define RAW3215_FROZEN 256 /* set if 3215 is frozen for suspend */
#define TAB_STOP_SIZE 8 /* tab stop size */
/*
* Get a request structure from the free list
*/
-static inline struct raw3215_req *
-raw3215_alloc_req(void) {
+static inline struct raw3215_req *raw3215_alloc_req(void)
+{
struct raw3215_req *req;
unsigned long flags;
/*
* Put a request structure back to the free list
*/
-static inline void
-raw3215_free_req(struct raw3215_req *req) {
+static inline void raw3215_free_req(struct raw3215_req *req)
+{
unsigned long flags;
if (req->type == RAW3215_FREE)
* because a 3215 terminal won't accept a new read before the old one is
* completed.
*/
-static void
-raw3215_mk_read_req(struct raw3215_info *raw)
+static void raw3215_mk_read_req(struct raw3215_info *raw)
{
struct raw3215_req *req;
struct ccw1 *ccw;
* buffer to the 3215 device. If a queued write exists it is replaced by
* the new, probably lengthened request.
*/
-static void
-raw3215_mk_write_req(struct raw3215_info *raw)
+static void raw3215_mk_write_req(struct raw3215_info *raw)
{
struct raw3215_req *req;
struct ccw1 *ccw;
/*
* Start a read or a write request
*/
-static void
-raw3215_start_io(struct raw3215_info *raw)
+static void raw3215_start_io(struct raw3215_info *raw)
{
struct raw3215_req *req;
int res;
/*
* Function to start a delayed output after RAW3215_TIMEOUT seconds
*/
-static void
-raw3215_timeout(unsigned long __data)
+static void raw3215_timeout(unsigned long __data)
{
struct raw3215_info *raw = (struct raw3215_info *) __data;
unsigned long flags;
if (raw->flags & RAW3215_TIMER_RUNS) {
del_timer(&raw->timer);
raw->flags &= ~RAW3215_TIMER_RUNS;
- raw3215_mk_write_req(raw);
- raw3215_start_io(raw);
+ if (!(raw->flags & RAW3215_FROZEN)) {
+ raw3215_mk_write_req(raw);
+ raw3215_start_io(raw);
+ }
}
spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
}
* amount of data is bigger than RAW3215_MIN_WRITE. If a write is not
* done immediately a timer is started with a delay of RAW3215_TIMEOUT.
*/
-static inline void
-raw3215_try_io(struct raw3215_info *raw)
+static inline void raw3215_try_io(struct raw3215_info *raw)
{
- if (!(raw->flags & RAW3215_ACTIVE))
+ if (!(raw->flags & RAW3215_ACTIVE) || (raw->flags & RAW3215_FROZEN))
return;
if (raw->queued_read != NULL)
raw3215_start_io(raw);
/*
* Interrupt routine, called from common io layer
*/
-static void
-raw3215_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
+static void raw3215_irq(struct ccw_device *cdev, unsigned long intparm,
+ struct irb *irb)
{
struct raw3215_info *raw;
struct raw3215_req *req;
int cstat, dstat;
int count;
- raw = cdev->dev.driver_data;
+ raw = dev_get_drvdata(&cdev->dev);
req = (struct raw3215_req *) intparm;
cstat = irb->scsw.cmd.cstat;
dstat = irb->scsw.cmd.dstat;
return;
}
+/*
+ * Drop the oldest line from the output buffer.
+ */
+static void raw3215_drop_line(struct raw3215_info *raw)
+{
+ int ix;
+ char ch;
+
+ BUG_ON(raw->written != 0);
+ ix = (raw->head - raw->count) & (RAW3215_BUFFER_SIZE - 1);
+ while (raw->count > 0) {
+ ch = raw->buffer[ix];
+ ix = (ix + 1) & (RAW3215_BUFFER_SIZE - 1);
+ raw->count--;
+ if (ch == 0x15)
+ break;
+ }
+ raw->head = ix;
+}
+
/*
* Wait until length bytes are available int the output buffer.
* Has to be called with the s390irq lock held. Can be called
* disabled.
*/
-static void
-raw3215_make_room(struct raw3215_info *raw, unsigned int length)
+static void raw3215_make_room(struct raw3215_info *raw, unsigned int length)
{
while (RAW3215_BUFFER_SIZE - raw->count < length) {
+ /* While console is frozen for suspend we have no other
+ * choice but to drop message from the buffer to make
+ * room for even more messages. */
+ if (raw->flags & RAW3215_FROZEN) {
+ raw3215_drop_line(raw);
+ continue;
+ }
/* there might be a request pending */
raw->flags |= RAW3215_FLUSHING;
raw3215_mk_write_req(raw);
/*
* String write routine for 3215 devices
*/
-static void
-raw3215_write(struct raw3215_info *raw, const char *str, unsigned int length)
+static void raw3215_write(struct raw3215_info *raw, const char *str,
+ unsigned int length)
{
unsigned long flags;
int c, count;
/*
* Put character routine for 3215 devices
*/
-static void
-raw3215_putchar(struct raw3215_info *raw, unsigned char ch)
+static void raw3215_putchar(struct raw3215_info *raw, unsigned char ch)
{
unsigned long flags;
unsigned int length, i;
* Flush routine, it simply sets the flush flag and tries to start
* pending IO.
*/
-static void
-raw3215_flush_buffer(struct raw3215_info *raw)
+static void raw3215_flush_buffer(struct raw3215_info *raw)
{
unsigned long flags;
/*
* Fire up a 3215 device.
*/
-static int
-raw3215_startup(struct raw3215_info *raw)
+static int raw3215_startup(struct raw3215_info *raw)
{
unsigned long flags;
/*
* Shutdown a 3215 device.
*/
-static void
-raw3215_shutdown(struct raw3215_info *raw)
+static void raw3215_shutdown(struct raw3215_info *raw)
{
DECLARE_WAITQUEUE(wait, current);
unsigned long flags;
spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
}
-static int
-raw3215_probe (struct ccw_device *cdev)
+static int raw3215_probe (struct ccw_device *cdev)
{
struct raw3215_info *raw;
int line;
/* Console is special. */
- if (raw3215[0] && (cdev->dev.driver_data == raw3215[0]))
+ if (raw3215[0] && (raw3215[0] == dev_get_drvdata(&cdev->dev)))
return 0;
raw = kmalloc(sizeof(struct raw3215_info) +
RAW3215_INBUF_SIZE, GFP_KERNEL|GFP_DMA);
}
init_waitqueue_head(&raw->empty_wait);
- cdev->dev.driver_data = raw;
+ dev_set_drvdata(&cdev->dev, raw);
cdev->handler = raw3215_irq;
return 0;
}
-static void
-raw3215_remove (struct ccw_device *cdev)
+static void raw3215_remove (struct ccw_device *cdev)
{
struct raw3215_info *raw;
ccw_device_set_offline(cdev);
- raw = cdev->dev.driver_data;
+ raw = dev_get_drvdata(&cdev->dev);
if (raw) {
- cdev->dev.driver_data = NULL;
+ dev_set_drvdata(&cdev->dev, NULL);
kfree(raw->buffer);
kfree(raw);
}
}
-static int
-raw3215_set_online (struct ccw_device *cdev)
+static int raw3215_set_online (struct ccw_device *cdev)
{
struct raw3215_info *raw;
- raw = cdev->dev.driver_data;
+ raw = dev_get_drvdata(&cdev->dev);
if (!raw)
return -ENODEV;
return raw3215_startup(raw);
}
-static int
-raw3215_set_offline (struct ccw_device *cdev)
+static int raw3215_set_offline (struct ccw_device *cdev)
{
struct raw3215_info *raw;
- raw = cdev->dev.driver_data;
+ raw = dev_get_drvdata(&cdev->dev);
if (!raw)
return -ENODEV;
return 0;
}
+static int raw3215_pm_stop(struct ccw_device *cdev)
+{
+ struct raw3215_info *raw;
+ unsigned long flags;
+
+ /* Empty the output buffer, then prevent new I/O. */
+ raw = cdev->dev.driver_data;
+ spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
+ raw3215_make_room(raw, RAW3215_BUFFER_SIZE);
+ raw->flags |= RAW3215_FROZEN;
+ spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
+ return 0;
+}
+
+static int raw3215_pm_start(struct ccw_device *cdev)
+{
+ struct raw3215_info *raw;
+ unsigned long flags;
+
+ /* Allow I/O again and flush output buffer. */
+ raw = cdev->dev.driver_data;
+ spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
+ raw->flags &= ~RAW3215_FROZEN;
+ raw->flags |= RAW3215_FLUSHING;
+ raw3215_try_io(raw);
+ raw->flags &= ~RAW3215_FLUSHING;
+ spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
+ return 0;
+}
+
static struct ccw_device_id raw3215_id[] = {
{ CCW_DEVICE(0x3215, 0) },
{ /* end of list */ },
.remove = &raw3215_remove,
.set_online = &raw3215_set_online,
.set_offline = &raw3215_set_offline,
+ .freeze = &raw3215_pm_stop,
+ .thaw = &raw3215_pm_start,
+ .restore = &raw3215_pm_start,
};
#ifdef CONFIG_TN3215_CONSOLE
/*
* Write a string to the 3215 console
*/
-static void
-con3215_write(struct console *co, const char *str, unsigned int count)
+static void con3215_write(struct console *co, const char *str,
+ unsigned int count)
{
struct raw3215_info *raw;
int i;
* panic() calls con3215_flush through a panic_notifier
* before the system enters a disabled, endless loop.
*/
-static void
-con3215_flush(void)
+static void con3215_flush(void)
{
struct raw3215_info *raw;
unsigned long flags;
raw = raw3215[0]; /* console 3215 is the first one */
+ if (raw->flags & RAW3215_FROZEN)
+ /* The console is still frozen for suspend. */
+ if (ccw_device_force_console())
+ /* Forcing didn't work, no panic message .. */
+ return;
spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
raw3215_make_room(raw, RAW3215_BUFFER_SIZE);
spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
* 3215 console initialization code called from console_init().
* NOTE: This is called before kmalloc is available.
*/
-static int __init
-con3215_init(void)
+static int __init con3215_init(void)
{
struct ccw_device *cdev;
struct raw3215_info *raw;
raw->buffer = (char *) alloc_bootmem_low(RAW3215_BUFFER_SIZE);
raw->inbuf = (char *) alloc_bootmem_low(RAW3215_INBUF_SIZE);
raw->cdev = cdev;
- cdev->dev.driver_data = raw;
+ dev_set_drvdata(&cdev->dev, raw);
cdev->handler = raw3215_irq;
raw->flags |= RAW3215_FIXED;
*
* This routine is called whenever a 3215 tty is opened.
*/
-static int
-tty3215_open(struct tty_struct *tty, struct file * filp)
+static int tty3215_open(struct tty_struct *tty, struct file * filp)
{
struct raw3215_info *raw;
int retval, line;
* This routine is called when the 3215 tty is closed. We wait
* for the remaining request to be completed. Then we clean up.
*/
-static void
-tty3215_close(struct tty_struct *tty, struct file * filp)
+static void tty3215_close(struct tty_struct *tty, struct file * filp)
{
struct raw3215_info *raw;
/*
* Returns the amount of free space in the output buffer.
*/
-static int
-tty3215_write_room(struct tty_struct *tty)
+static int tty3215_write_room(struct tty_struct *tty)
{
struct raw3215_info *raw;
/*
* String write routine for 3215 ttys
*/
-static int
-tty3215_write(struct tty_struct * tty,
- const unsigned char *buf, int count)
+static int tty3215_write(struct tty_struct * tty,
+ const unsigned char *buf, int count)
{
struct raw3215_info *raw;
/*
* Put character routine for 3215 ttys
*/
-static int
-tty3215_put_char(struct tty_struct *tty, unsigned char ch)
+static int tty3215_put_char(struct tty_struct *tty, unsigned char ch)
{
struct raw3215_info *raw;
return 1;
}
-static void
-tty3215_flush_chars(struct tty_struct *tty)
+static void tty3215_flush_chars(struct tty_struct *tty)
{
}
/*
* Returns the number of characters in the output buffer
*/
-static int
-tty3215_chars_in_buffer(struct tty_struct *tty)
+static int tty3215_chars_in_buffer(struct tty_struct *tty)
{
struct raw3215_info *raw;
return raw->count;
}
-static void
-tty3215_flush_buffer(struct tty_struct *tty)
+static void tty3215_flush_buffer(struct tty_struct *tty)
{
struct raw3215_info *raw;
/*
* Currently we don't have any io controls for 3215 ttys
*/
-static int
-tty3215_ioctl(struct tty_struct *tty, struct file * file,
- unsigned int cmd, unsigned long arg)
+static int tty3215_ioctl(struct tty_struct *tty, struct file * file,
+ unsigned int cmd, unsigned long arg)
{
if (tty->flags & (1 << TTY_IO_ERROR))
return -EIO;
/*
* Disable reading from a 3215 tty
*/
-static void
-tty3215_throttle(struct tty_struct * tty)
+static void tty3215_throttle(struct tty_struct * tty)
{
struct raw3215_info *raw;
/*
* Enable reading from a 3215 tty
*/
-static void
-tty3215_unthrottle(struct tty_struct * tty)
+static void tty3215_unthrottle(struct tty_struct * tty)
{
struct raw3215_info *raw;
unsigned long flags;
/*
* Disable writing to a 3215 tty
*/
-static void
-tty3215_stop(struct tty_struct *tty)
+static void tty3215_stop(struct tty_struct *tty)
{
struct raw3215_info *raw;
/*
* Enable writing to a 3215 tty
*/
-static void
-tty3215_start(struct tty_struct *tty)
+static void tty3215_start(struct tty_struct *tty)
{
struct raw3215_info *raw;
unsigned long flags;
* 3215 tty registration code called from tty_init().
* Most kernel services (incl. kmalloc) are available at this poimt.
*/
-static int __init
-tty3215_init(void)
+static int __init tty3215_init(void)
{
struct tty_driver *driver;
int ret;
return 0;
}
-static void __exit
-tty3215_exit(void)
+static void __exit tty3215_exit(void)
{
tty_unregister_driver(tty3215_driver);
put_tty_driver(tty3215_driver);
/*
- * drivers/s390/char/raw3270.c
- * IBM/3270 Driver - core functions.
+ * IBM/3270 Driver - core functions.
*
- * Author(s):
- * Original 3270 Code for 2.4 written by Richard Hitt (UTS Global)
- * Rewritten for 2.5 by Martin Schwidefsky <schwidefsky@de.ibm.com>
- * -- Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ * Author(s):
+ * Original 3270 Code for 2.4 written by Richard Hitt (UTS Global)
+ * Rewritten for 2.5 by Martin Schwidefsky <schwidefsky@de.ibm.com>
+ * Copyright IBM Corp. 2003, 2009
*/
#include <linux/bootmem.h>
#define RAW3270_FLAGS_ATTN 2 /* Device sent an ATTN interrupt */
#define RAW3270_FLAGS_READY 4 /* Device is useable by views */
#define RAW3270_FLAGS_CONSOLE 8 /* Device is the console. */
+#define RAW3270_FLAGS_FROZEN 16 /* set if 3270 is frozen for suspend */
/* Semaphore to protect global data of raw3270 (devices, views, etc). */
static DEFINE_MUTEX(raw3270_mutex);
spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags);
rp = view->dev;
- if (!rp || rp->view != view)
+ if (!rp || rp->view != view ||
+ test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
rc = -EACCES;
else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
rc = -ENODEV;
int rc;
rp = view->dev;
- if (!rp || rp->view != view)
+ if (!rp || rp->view != view ||
+ test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
rc = -EACCES;
else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
rc = -ENODEV;
struct raw3270_request *rq;
int rc;
- rp = (struct raw3270 *) cdev->dev.driver_data;
+ rp = dev_get_drvdata(&cdev->dev);
if (!rp)
return;
rq = (struct raw3270_request *) intparm;
int rc;
rp = view->dev;
- if (!rp || rp->view != view)
+ if (!rp || rp->view != view ||
+ test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
rc = -EACCES;
else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
rc = -ENODEV;
if (rp->minor == -1)
return -EUSERS;
rp->cdev = cdev;
- cdev->dev.driver_data = rp;
+ dev_set_drvdata(&cdev->dev, rp);
cdev->handler = raw3270_irq;
return 0;
}
rc = 0;
else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
rc = -ENODEV;
+ else if (test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
+ rc = -EACCES;
else {
oldview = NULL;
if (rp->view) {
list_del_init(&view->list);
list_add_tail(&view->list, &rp->view_list);
/* Try to activate another view. */
- if (test_bit(RAW3270_FLAGS_READY, &rp->flags)) {
+ if (test_bit(RAW3270_FLAGS_READY, &rp->flags) &&
+ !test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) {
list_for_each_entry(view, &rp->view_list, list) {
rp->view = view;
if (view->fn->activate(view) == 0)
rp->view = NULL;
}
list_del_init(&view->list);
- if (!rp->view && test_bit(RAW3270_FLAGS_READY, &rp->flags)) {
+ if (!rp->view && test_bit(RAW3270_FLAGS_READY, &rp->flags) &&
+ !test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) {
/* Try to activate another view. */
list_for_each_entry(nv, &rp->view_list, list) {
if (nv->fn->activate(nv) == 0) {
/* Disconnect from ccw_device. */
cdev = rp->cdev;
rp->cdev = NULL;
- cdev->dev.driver_data = NULL;
+ dev_set_drvdata(&cdev->dev, NULL);
cdev->handler = NULL;
/* Put ccw_device structure. */
raw3270_model_show(struct device *dev, struct device_attribute *attr, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%i\n",
- ((struct raw3270 *) dev->driver_data)->model);
+ ((struct raw3270 *) dev_get_drvdata(dev))->model);
}
static DEVICE_ATTR(model, 0444, raw3270_model_show, NULL);
raw3270_rows_show(struct device *dev, struct device_attribute *attr, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%i\n",
- ((struct raw3270 *) dev->driver_data)->rows);
+ ((struct raw3270 *) dev_get_drvdata(dev))->rows);
}
static DEVICE_ATTR(rows, 0444, raw3270_rows_show, NULL);
raw3270_columns_show(struct device *dev, struct device_attribute *attr, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%i\n",
- ((struct raw3270 *) dev->driver_data)->cols);
+ ((struct raw3270 *) dev_get_drvdata(dev))->cols);
}
static DEVICE_ATTR(columns, 0444, raw3270_columns_show, NULL);
struct raw3270_view *v;
struct raw3270_notifier *np;
- rp = cdev->dev.driver_data;
+ rp = dev_get_drvdata(&cdev->dev);
/*
* _remove is the opposite of _probe; it's probe that
* should set up rp. raw3270_remove gets entered for
{
struct raw3270 *rp;
- rp = cdev->dev.driver_data;
+ rp = dev_get_drvdata(&cdev->dev);
if (test_bit(RAW3270_FLAGS_CONSOLE, &rp->flags))
return -EBUSY;
raw3270_remove(cdev);
return 0;
}
+static int raw3270_pm_stop(struct ccw_device *cdev)
+{
+ struct raw3270 *rp;
+ struct raw3270_view *view;
+ unsigned long flags;
+
+ rp = cdev->dev.driver_data;
+ if (!rp)
+ return 0;
+ spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
+ if (rp->view)
+ rp->view->fn->deactivate(rp->view);
+ if (!test_bit(RAW3270_FLAGS_CONSOLE, &rp->flags)) {
+ /*
+ * Release tty and fullscreen for all non-console
+ * devices.
+ */
+ list_for_each_entry(view, &rp->view_list, list) {
+ if (view->fn->release)
+ view->fn->release(view);
+ }
+ }
+ set_bit(RAW3270_FLAGS_FROZEN, &rp->flags);
+ spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
+ return 0;
+}
+
+static int raw3270_pm_start(struct ccw_device *cdev)
+{
+ struct raw3270 *rp;
+ unsigned long flags;
+
+ rp = cdev->dev.driver_data;
+ if (!rp)
+ return 0;
+ spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
+ clear_bit(RAW3270_FLAGS_FROZEN, &rp->flags);
+ if (rp->view)
+ rp->view->fn->activate(rp->view);
+ spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
+ return 0;
+}
+
+void raw3270_pm_unfreeze(struct raw3270_view *view)
+{
+ struct raw3270 *rp;
+
+ rp = view->dev;
+ if (rp && test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
+ ccw_device_force_console();
+}
+
static struct ccw_device_id raw3270_id[] = {
{ CCW_DEVICE(0x3270, 0) },
{ CCW_DEVICE(0x3271, 0) },
.remove = &raw3270_remove,
.set_online = &raw3270_set_online,
.set_offline = &raw3270_set_offline,
+ .freeze = &raw3270_pm_stop,
+ .thaw = &raw3270_pm_start,
+ .restore = &raw3270_pm_start,
};
static int
* drivers/s390/char/tape_34xx.c
* tape device discipline for 3480/3490 tapes.
*
- * Copyright (C) IBM Corp. 2001,2006
+ * Copyright IBM Corp. 2001, 2009
* Author(s): Carsten Otte <cotte@de.ibm.com>
* Tuan Ngo-Anh <ngoanh@de.ibm.com>
* Martin Schwidefsky <schwidefsky@de.ibm.com>
tape_34xx_online(struct ccw_device *cdev)
{
return tape_generic_online(
- cdev->dev.driver_data,
+ dev_get_drvdata(&cdev->dev),
&tape_discipline_34xx
);
}
.remove = tape_generic_remove,
.set_online = tape_34xx_online,
.set_offline = tape_generic_offline,
+ .freeze = tape_generic_pm_suspend,
};
static int
* drivers/s390/char/tape_3590.c
* tape device discipline for 3590 tapes.
*
- * Copyright IBM Corp. 2001,2006
+ * Copyright IBM Corp. 2001, 2009
* Author(s): Stefan Bader <shbader@de.ibm.com>
* Michael Holzheu <holzheu@de.ibm.com>
* Martin Schwidefsky <schwidefsky@de.ibm.com>
static int
tape_3590_online(struct ccw_device *cdev)
{
- return tape_generic_online(cdev->dev.driver_data,
+ return tape_generic_online(dev_get_drvdata(&cdev->dev),
&tape_discipline_3590);
}
.remove = tape_generic_remove,
.set_offline = tape_generic_offline,
.set_online = tape_3590_online,
+ .freeze = tape_generic_pm_suspend,
};
/*
* basic function of the tape device driver
*
* S390 and zSeries version
- * Copyright IBM Corp. 2001,2006
+ * Copyright IBM Corp. 2001, 2009
* Author(s): Carsten Otte <cotte@de.ibm.com>
* Michael Holzheu <holzheu@de.ibm.com>
* Tuan Ngo-Anh <ngoanh@de.ibm.com>
{
struct tape_device *tdev;
- tdev = (struct tape_device *) dev->driver_data;
+ tdev = dev_get_drvdata(dev);
return scnprintf(buf, PAGE_SIZE, "%i\n", tdev->medium_state);
}
{
struct tape_device *tdev;
- tdev = (struct tape_device *) dev->driver_data;
+ tdev = dev_get_drvdata(dev);
return scnprintf(buf, PAGE_SIZE, "%i\n", tdev->first_minor);
}
{
struct tape_device *tdev;
- tdev = (struct tape_device *) dev->driver_data;
+ tdev = dev_get_drvdata(dev);
return scnprintf(buf, PAGE_SIZE, "%s\n", (tdev->first_minor < 0) ?
"OFFLINE" : tape_state_verbose[tdev->tape_state]);
}
struct tape_device *tdev;
ssize_t rc;
- tdev = (struct tape_device *) dev->driver_data;
+ tdev = dev_get_drvdata(dev);
if (tdev->first_minor < 0)
return scnprintf(buf, PAGE_SIZE, "N/A\n");
{
struct tape_device *tdev;
- tdev = (struct tape_device *) dev->driver_data;
+ tdev = dev_get_drvdata(dev);
return scnprintf(buf, PAGE_SIZE, "%i\n", tdev->char_data.block_size);
}
tape_med_state_set(device, MS_UNKNOWN);
}
+/*
+ * Suspend device.
+ *
+ * Called by the common I/O layer if the drive should be suspended on user
+ * request. We refuse to suspend if the device is loaded or in use for the
+ * following reason:
+ * While the Linux guest is suspended, it might be logged off which causes
+ * devices to be detached. Tape devices are automatically rewound and unloaded
+ * during DETACH processing (unless the tape device was attached with the
+ * NOASSIGN or MULTIUSER option). After rewind/unload, there is no way to
+ * resume the original state of the tape device, since we would need to
+ * manually re-load the cartridge which was active at suspend time.
+ */
+int tape_generic_pm_suspend(struct ccw_device *cdev)
+{
+ struct tape_device *device;
+
+ device = cdev->dev.driver_data;
+ if (!device) {
+ return -ENODEV;
+ }
+
+ DBF_LH(3, "(%08x): tape_generic_pm_suspend(%p)\n",
+ device->cdev_id, device);
+
+ if (device->medium_state != MS_UNLOADED) {
+ pr_err("A cartridge is loaded in tape device %s, "
+ "refusing to suspend\n", dev_name(&cdev->dev));
+ return -EBUSY;
+ }
+
+ spin_lock_irq(get_ccwdev_lock(device->cdev));
+ switch (device->tape_state) {
+ case TS_INIT:
+ case TS_NOT_OPER:
+ case TS_UNUSED:
+ spin_unlock_irq(get_ccwdev_lock(device->cdev));
+ break;
+ default:
+ pr_err("Tape device %s is busy, refusing to "
+ "suspend\n", dev_name(&cdev->dev));
+ spin_unlock_irq(get_ccwdev_lock(device->cdev));
+ return -EBUSY;
+ }
+
+ DBF_LH(3, "(%08x): Drive suspended.\n", device->cdev_id);
+ return 0;
+}
+
/*
* Set device offline.
*
{
struct tape_device *device;
- device = cdev->dev.driver_data;
+ device = dev_get_drvdata(&cdev->dev);
if (!device) {
return -ENODEV;
}
tape_put_device(device);
return ret;
}
- cdev->dev.driver_data = device;
+ dev_set_drvdata(&cdev->dev, device);
cdev->handler = __tape_do_irq;
device->cdev = cdev;
ccw_device_get_id(cdev, &dev_id);
{
struct tape_device * device;
- device = cdev->dev.driver_data;
+ device = dev_get_drvdata(&cdev->dev);
if (!device) {
return;
}
tape_cleanup_device(device);
}
- if (cdev->dev.driver_data != NULL) {
+ if (!dev_get_drvdata(&cdev->dev)) {
sysfs_remove_group(&cdev->dev.kobj, &tape_attr_group);
- cdev->dev.driver_data = tape_put_device(cdev->dev.driver_data);
+ dev_set_drvdata(&cdev->dev, tape_put_device(dev_get_drvdata(&cdev->dev)));
}
}
struct tape_request *request;
int rc;
- device = (struct tape_device *) cdev->dev.driver_data;
+ device = dev_get_drvdata(&cdev->dev);
if (device == NULL) {
return;
}
EXPORT_SYMBOL(tape_generic_probe);
EXPORT_SYMBOL(tape_generic_online);
EXPORT_SYMBOL(tape_generic_offline);
+EXPORT_SYMBOL(tape_generic_pm_suspend);
EXPORT_SYMBOL(tape_put_device);
EXPORT_SYMBOL(tape_get_device_reference);
EXPORT_SYMBOL(tape_state_verbose);
* character device driver for reading z/VM system service records
*
*
- * Copyright 2004 IBM Corporation
+ * Copyright IBM Corp. 2004, 2009
* character device driver for reading z/VM system service records,
* Version 1.0
* Author(s): Xenia Tkatschow <xenia@us.ibm.com>
struct device_attribute *attr,
const char * buf, size_t count)
{
- struct vmlogrdr_priv_t *priv = dev->driver_data;
+ struct vmlogrdr_priv_t *priv = dev_get_drvdata(dev);
ssize_t ret = count;
switch (buf[0]) {
struct device_attribute *attr,
char *buf)
{
- struct vmlogrdr_priv_t *priv = dev->driver_data;
+ struct vmlogrdr_priv_t *priv = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", priv->autopurge);
}
char cp_command[80];
char cp_response[80];
- struct vmlogrdr_priv_t *priv = dev->driver_data;
+ struct vmlogrdr_priv_t *priv = dev_get_drvdata(dev);
if (buf[0] != '1')
return -EINVAL;
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct vmlogrdr_priv_t *priv = dev->driver_data;
+ struct vmlogrdr_priv_t *priv = dev_get_drvdata(dev);
ssize_t ret = count;
switch (buf[0]) {
struct device_attribute *attr,
char *buf)
{
- struct vmlogrdr_priv_t *priv = dev->driver_data;
+ struct vmlogrdr_priv_t *priv = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", priv->autorecording);
}
struct device_attribute *attr,
const char * buf, size_t count)
{
- struct vmlogrdr_priv_t *priv = dev->driver_data;
+ struct vmlogrdr_priv_t *priv = dev_get_drvdata(dev);
ssize_t ret;
switch (buf[0]) {
NULL,
};
+static int vmlogrdr_pm_prepare(struct device *dev)
+{
+ int rc;
+ struct vmlogrdr_priv_t *priv = dev->driver_data;
+
+ rc = 0;
+ if (priv) {
+ spin_lock_bh(&priv->priv_lock);
+ if (priv->dev_in_use)
+ rc = -EBUSY;
+ spin_unlock_bh(&priv->priv_lock);
+ }
+ if (rc)
+ pr_err("vmlogrdr: device %s is busy. Refuse to suspend.\n",
+ dev_name(dev));
+ return rc;
+}
+
+
+static struct dev_pm_ops vmlogrdr_pm_ops = {
+ .prepare = vmlogrdr_pm_prepare,
+};
+
static struct attribute_group vmlogrdr_attr_group = {
.attrs = vmlogrdr_attrs,
};
static struct device_driver vmlogrdr_driver = {
.name = "vmlogrdr",
.bus = &iucv_bus,
+ .pm = &vmlogrdr_pm_ops,
};
dev->bus = &iucv_bus;
dev->parent = iucv_root;
dev->driver = &vmlogrdr_driver;
+ dev->driver_data = priv;
/*
* The release function could be called after the
* module has been unloaded. It's _only_ task is to
* Linux driver for System z and s390 unit record devices
* (z/VM virtual punch, reader, printer)
*
- * Copyright IBM Corp. 2001, 2007
+ * Copyright IBM Corp. 2001, 2009
* Authors: Malcolm Beattie <beattiem@uk.ibm.com>
* Michael Holzheu <holzheu@de.ibm.com>
* Frank Munzert <munzert@de.ibm.com>
static void ur_remove(struct ccw_device *cdev);
static int ur_set_online(struct ccw_device *cdev);
static int ur_set_offline(struct ccw_device *cdev);
+static int ur_pm_suspend(struct ccw_device *cdev);
static struct ccw_driver ur_driver = {
.name = "vmur",
.remove = ur_remove,
.set_online = ur_set_online,
.set_offline = ur_set_offline,
+ .freeze = ur_pm_suspend,
};
static DEFINE_MUTEX(vmur_mutex);
*
* Each ur device (urd) contains a reference to its corresponding ccw device
* (cdev) using the urd->cdev pointer. Each ccw device has a reference to the
- * ur device using the cdev->dev.driver_data pointer.
+ * ur device using dev_get_drvdata(&cdev->dev) pointer.
*
* urd references:
* - ur_probe gets a urd reference, ur_remove drops the reference
- * (cdev->dev.driver_data)
+ * dev_get_drvdata(&cdev->dev)
* - ur_open gets a urd reference, ur_relase drops the reference
* (urf->urd)
*
* - urdev_alloc get a cdev reference (urd->cdev)
* - urdev_free drops the cdev reference (urd->cdev)
*
- * Setting and clearing of cdev->dev.driver_data is protected by the ccwdev lock
+ * Setting and clearing of dev_get_drvdata(&cdev->dev) is protected by the ccwdev lock
*/
static struct urdev *urdev_alloc(struct ccw_device *cdev)
{
unsigned long flags;
spin_lock_irqsave(get_ccwdev_lock(cdev), flags);
- urd = cdev->dev.driver_data;
+ urd = dev_get_drvdata(&cdev->dev);
if (urd)
urdev_get(urd);
spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags);
urdev_free(urd);
}
+/*
+ * State and contents of ur devices can be changed by class D users issuing
+ * CP commands such as PURGE or TRANSFER, while the Linux guest is suspended.
+ * Also the Linux guest might be logged off, which causes all active spool
+ * files to be closed.
+ * So we cannot guarantee that spool files are still the same when the Linux
+ * guest is resumed. In order to avoid unpredictable results at resume time
+ * we simply refuse to suspend if a ur device node is open.
+ */
+static int ur_pm_suspend(struct ccw_device *cdev)
+{
+ struct urdev *urd = cdev->dev.driver_data;
+
+ TRACE("ur_pm_suspend: cdev=%p\n", cdev);
+ if (urd->open_flag) {
+ pr_err("Unit record device %s is busy, %s refusing to "
+ "suspend.\n", dev_name(&cdev->dev), ur_banner);
+ return -EBUSY;
+ }
+ return 0;
+}
+
/*
* Low-level functions to do I/O to a ur device.
* alloc_chan_prog
TRACE("ur_int_handler: unsolicited interrupt\n");
return;
}
- urd = cdev->dev.driver_data;
+ urd = dev_get_drvdata(&cdev->dev);
BUG_ON(!urd);
/* On special conditions irb is an error pointer */
if (IS_ERR(irb))
goto fail_remove_attr;
}
spin_lock_irq(get_ccwdev_lock(cdev));
- cdev->dev.driver_data = urd;
+ dev_set_drvdata(&cdev->dev, urd);
spin_unlock_irq(get_ccwdev_lock(cdev));
mutex_unlock(&vmur_mutex);
ur_remove_attributes(&cdev->dev);
spin_lock_irqsave(get_ccwdev_lock(cdev), flags);
- urdev_put(cdev->dev.driver_data);
- cdev->dev.driver_data = NULL;
+ urdev_put(dev_get_drvdata(&cdev->dev));
+ dev_set_drvdata(&cdev->dev, NULL);
spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags);
mutex_unlock(&vmur_mutex);
* ESCON CLAW network driver
*
* Linux for zSeries version
- * Copyright (C) 2002,2005 IBM Corporation
+ * Copyright IBM Corp. 2002, 2009
* Author(s) Original code written by:
- * Kazuo Iimura (iimura@jp.ibm.com)
+ * Kazuo Iimura <iimura@jp.ibm.com>
* Rewritten by
- * Andy Richter (richtera@us.ibm.com)
- * Marc Price (mwprice@us.ibm.com)
+ * Andy Richter <richtera@us.ibm.com>
+ * Marc Price <mwprice@us.ibm.com>
*
* sysfs parms:
* group x.x.rrrr,x.x.wwww
/* Functions for unpack reads */
static void unpack_read(struct net_device *dev);
+static int claw_pm_prepare(struct ccwgroup_device *gdev)
+{
+ return -EPERM;
+}
+
/* ccwgroup table */
static struct ccwgroup_driver claw_group_driver = {
.remove = claw_remove_device,
.set_online = claw_new_device,
.set_offline = claw_shutdown_device,
+ .prepare = claw_pm_prepare,
};
/*
if (!get_device(&cgdev->dev))
return -ENODEV;
privptr = kzalloc(sizeof(struct claw_privbk), GFP_KERNEL);
- cgdev->dev.driver_data = privptr;
+ dev_set_drvdata(&cgdev->dev, privptr);
if (privptr == NULL) {
probe_error(cgdev);
put_device(&cgdev->dev);
CLAW_DBF_TEXT(4, trace, "clawirq");
/* Bypass all 'unsolicited interrupts' */
- if (!cdev->dev.driver_data) {
+ privptr = dev_get_drvdata(&cdev->dev);
+ if (!privptr) {
dev_warn(&cdev->dev, "An uninitialized CLAW device received an"
" IRQ, c-%02x d-%02x\n",
irb->scsw.cmd.cstat, irb->scsw.cmd.dstat);
CLAW_DBF_TEXT(2, trace, "badirq");
return;
}
- privptr = (struct claw_privbk *)cdev->dev.driver_data;
/* Try to extract channel from driver data. */
if (privptr->channel[READ].cdev == cdev)
struct claw_privbk *privptr;
CLAW_DBF_TEXT(4, trace, "proberr");
- privptr = (struct claw_privbk *) cgdev->dev.driver_data;
+ privptr = dev_get_drvdata(&cgdev->dev);
if (privptr != NULL) {
- cgdev->dev.driver_data = NULL;
+ dev_set_drvdata(&cgdev->dev, NULL);
kfree(privptr->p_env);
kfree(privptr->p_mtc_envelope);
kfree(privptr);
dev_info(&cgdev->dev, "add for %s\n",
dev_name(&cgdev->cdev[READ]->dev));
CLAW_DBF_TEXT(2, setup, "new_dev");
- privptr = cgdev->dev.driver_data;
- cgdev->cdev[READ]->dev.driver_data = privptr;
- cgdev->cdev[WRITE]->dev.driver_data = privptr;
+ privptr = dev_get_drvdata(&cgdev->dev);
+ dev_set_drvdata(&cgdev->cdev[READ]->dev, privptr);
+ dev_set_drvdata(&cgdev->cdev[WRITE]->dev, privptr);
if (!privptr)
return -ENODEV;
p_env = privptr->p_env;
goto out;
}
dev->ml_priv = privptr;
- cgdev->dev.driver_data = privptr;
- cgdev->cdev[READ]->dev.driver_data = privptr;
- cgdev->cdev[WRITE]->dev.driver_data = privptr;
+ dev_set_drvdata(&cgdev->dev, privptr);
+ dev_set_drvdata(&cgdev->cdev[READ]->dev, privptr);
+ dev_set_drvdata(&cgdev->cdev[WRITE]->dev, privptr);
/* sysfs magic */
SET_NETDEV_DEV(dev, &cgdev->dev);
if (register_netdev(dev) != 0) {
int ret;
CLAW_DBF_TEXT_(2, setup, "%s", dev_name(&cgdev->dev));
- priv = cgdev->dev.driver_data;
+ priv = dev_get_drvdata(&cgdev->dev);
if (!priv)
return -ENODEV;
ndev = priv->channel[READ].ndev;
BUG_ON(!cgdev);
CLAW_DBF_TEXT_(2, setup, "%s", dev_name(&cgdev->dev));
- priv = cgdev->dev.driver_data;
+ priv = dev_get_drvdata(&cgdev->dev);
BUG_ON(!priv);
dev_info(&cgdev->dev, " will be removed.\n");
if (cgdev->state == CCWGROUP_ONLINE)
kfree(priv->channel[1].irb);
priv->channel[1].irb=NULL;
kfree(priv);
- cgdev->dev.driver_data=NULL;
- cgdev->cdev[READ]->dev.driver_data = NULL;
- cgdev->cdev[WRITE]->dev.driver_data = NULL;
+ dev_set_drvdata(&cgdev->dev, NULL);
+ dev_set_drvdata(&cgdev->cdev[READ]->dev, NULL);
+ dev_set_drvdata(&cgdev->cdev[WRITE]->dev, NULL);
put_device(&cgdev->dev);
return;
struct claw_privbk *priv;
struct claw_env * p_env;
- priv = dev->driver_data;
+ priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
p_env = priv->p_env;
struct claw_privbk *priv;
struct claw_env * p_env;
- priv = dev->driver_data;
+ priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
p_env = priv->p_env;
struct claw_privbk *priv;
struct claw_env * p_env;
- priv = dev->driver_data;
+ priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
p_env = priv->p_env;
struct claw_privbk *priv;
struct claw_env * p_env;
- priv = dev->driver_data;
+ priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
p_env = priv->p_env;
struct claw_privbk *priv;
struct claw_env * p_env;
- priv = dev->driver_data;
+ priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
p_env = priv->p_env;
struct claw_privbk *priv;
struct claw_env * p_env;
- priv = dev->driver_data;
+ priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
p_env = priv->p_env;
struct claw_privbk *priv;
struct claw_env * p_env;
- priv = dev->driver_data;
+ priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
p_env = priv->p_env;
struct claw_env * p_env;
int nnn,max;
- priv = dev->driver_data;
+ priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
p_env = priv->p_env;
struct claw_privbk *priv;
struct claw_env * p_env;
- priv = dev->driver_data;
+ priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
p_env = priv->p_env;
struct claw_env *p_env;
int nnn,max;
- priv = dev->driver_data;
+ priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
p_env = priv->p_env;
/*
- * linux/drivers/s390/net/lcs.c
- *
* Linux for S/390 Lan Channel Station Network Driver
*
- * Copyright (C) 1999-2001 IBM Deutschland Entwicklung GmbH,
- * IBM Corporation
- * Author(s): Original Code written by
- * DJ Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
- * Rewritten by
- * Frank Pavlic (fpavlic@de.ibm.com) and
- * Martin Schwidefsky <schwidefsky@de.ibm.com>
+ * Copyright IBM Corp. 1999, 2009
+ * Author(s): Original Code written by
+ * DJ Barrow <djbarrow@de.ibm.com,barrow_dj@yahoo.com>
+ * Rewritten by
+ * Frank Pavlic <fpavlic@de.ibm.com> and
+ * Martin Schwidefsky <schwidefsky@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
{
struct lcs_card *card;
- card = (struct lcs_card *)dev->driver_data;
+ card = dev_get_drvdata(dev);
if (!card)
return 0;
struct lcs_card *card;
int value;
- card = (struct lcs_card *)dev->driver_data;
+ card = dev_get_drvdata(dev);
if (!card)
return 0;
{
struct lcs_card *card;
- card = (struct lcs_card *)dev->driver_data;
+ card = dev_get_drvdata(dev);
return card ? sprintf(buf, "%u\n", card->lancmd_timeout) : 0;
}
struct lcs_card *card;
int value;
- card = (struct lcs_card *)dev->driver_data;
+ card = dev_get_drvdata(dev);
if (!card)
return 0;
lcs_dev_recover_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct lcs_card *card = dev->driver_data;
+ struct lcs_card *card = dev_get_drvdata(dev);
char *tmp;
int i;
put_device(&ccwgdev->dev);
return ret;
}
- ccwgdev->dev.driver_data = card;
+ dev_set_drvdata(&ccwgdev->dev, card);
ccwgdev->cdev[0]->handler = lcs_irq;
ccwgdev->cdev[1]->handler = lcs_irq;
card->gdev = ccwgdev;
struct lcs_card *card;
LCS_DBF_TEXT(2, setup, "regnetdv");
- card = (struct lcs_card *)ccwgdev->dev.driver_data;
+ card = dev_get_drvdata(&ccwgdev->dev);
if (card->dev->reg_state != NETREG_UNINITIALIZED)
return 0;
SET_NETDEV_DEV(card->dev, &ccwgdev->dev);
enum lcs_dev_states recover_state;
int rc;
- card = (struct lcs_card *)ccwgdev->dev.driver_data;
+ card = dev_get_drvdata(&ccwgdev->dev);
if (!card)
return -ENODEV;
int ret;
LCS_DBF_TEXT(3, setup, "shtdndev");
- card = (struct lcs_card *)ccwgdev->dev.driver_data;
+ card = dev_get_drvdata(&ccwgdev->dev);
if (!card)
return -ENODEV;
if (recovery_mode == 0) {
{
struct lcs_card *card;
- card = (struct lcs_card *)ccwgdev->dev.driver_data;
+ card = dev_get_drvdata(&ccwgdev->dev);
if (!card)
return;
put_device(&ccwgdev->dev);
}
+static int lcs_pm_suspend(struct lcs_card *card)
+{
+ if (card->dev)
+ netif_device_detach(card->dev);
+ lcs_set_allowed_threads(card, 0);
+ lcs_wait_for_threads(card, 0xffffffff);
+ if (card->state != DEV_STATE_DOWN)
+ __lcs_shutdown_device(card->gdev, 1);
+ return 0;
+}
+
+static int lcs_pm_resume(struct lcs_card *card)
+{
+ int rc = 0;
+
+ if (card->state == DEV_STATE_RECOVER)
+ rc = lcs_new_device(card->gdev);
+ if (card->dev)
+ netif_device_attach(card->dev);
+ if (rc) {
+ dev_warn(&card->gdev->dev, "The lcs device driver "
+ "failed to recover the device\n");
+ }
+ return rc;
+}
+
+static int lcs_prepare(struct ccwgroup_device *gdev)
+{
+ return 0;
+}
+
+static void lcs_complete(struct ccwgroup_device *gdev)
+{
+ return;
+}
+
+static int lcs_freeze(struct ccwgroup_device *gdev)
+{
+ struct lcs_card *card = dev_get_drvdata(&gdev->dev);
+ return lcs_pm_suspend(card);
+}
+
+static int lcs_thaw(struct ccwgroup_device *gdev)
+{
+ struct lcs_card *card = dev_get_drvdata(&gdev->dev);
+ return lcs_pm_resume(card);
+}
+
+static int lcs_restore(struct ccwgroup_device *gdev)
+{
+ struct lcs_card *card = dev_get_drvdata(&gdev->dev);
+ return lcs_pm_resume(card);
+}
+
/**
* LCS ccwgroup driver registration
*/
.remove = lcs_remove_device,
.set_online = lcs_new_device,
.set_offline = lcs_shutdown_device,
+ .prepare = lcs_prepare,
+ .complete = lcs_complete,
+ .freeze = lcs_freeze,
+ .thaw = lcs_thaw,
+ .restore = lcs_restore,
};
/**
/*
* IUCV network driver
*
- * Copyright 2001 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Fritz Elfert (elfert@de.ibm.com, felfert@millenux.com)
+ * Copyright IBM Corp. 2001, 2009
*
- * Sysfs integration and all bugs therein by Cornelia Huck
- * (cornelia.huck@de.ibm.com)
+ * Author(s):
+ * Original netiucv driver:
+ * Fritz Elfert (elfert@de.ibm.com, felfert@millenux.com)
+ * Sysfs integration and all bugs therein:
+ * Cornelia Huck (cornelia.huck@de.ibm.com)
+ * PM functions:
+ * Ursula Braun (ursula.braun@de.ibm.com)
*
* Documentation used:
* the source of the original IUCV driver by:
#define PRINTK_HEADER " iucv: " /* for debugging */
+/* dummy device to make sure netiucv_pm functions are called */
+static struct device *netiucv_dev;
+
+static int netiucv_pm_prepare(struct device *);
+static void netiucv_pm_complete(struct device *);
+static int netiucv_pm_freeze(struct device *);
+static int netiucv_pm_restore_thaw(struct device *);
+
+static struct dev_pm_ops netiucv_pm_ops = {
+ .prepare = netiucv_pm_prepare,
+ .complete = netiucv_pm_complete,
+ .freeze = netiucv_pm_freeze,
+ .thaw = netiucv_pm_restore_thaw,
+ .restore = netiucv_pm_restore_thaw,
+};
+
static struct device_driver netiucv_driver = {
.owner = THIS_MODULE,
.name = "netiucv",
.bus = &iucv_bus,
+ .pm = &netiucv_pm_ops,
};
static int netiucv_callback_connreq(struct iucv_path *,
fsm_instance *fsm;
struct iucv_connection *conn;
struct device *dev;
+ int pm_state;
};
/**
return 0;
}
+static int netiucv_pm_prepare(struct device *dev)
+{
+ IUCV_DBF_TEXT(trace, 3, __func__);
+ return 0;
+}
+
+static void netiucv_pm_complete(struct device *dev)
+{
+ IUCV_DBF_TEXT(trace, 3, __func__);
+ return;
+}
+
+/**
+ * netiucv_pm_freeze() - Freeze PM callback
+ * @dev: netiucv device
+ *
+ * close open netiucv interfaces
+ */
+static int netiucv_pm_freeze(struct device *dev)
+{
+ struct netiucv_priv *priv = dev->driver_data;
+ struct net_device *ndev = NULL;
+ int rc = 0;
+
+ IUCV_DBF_TEXT(trace, 3, __func__);
+ if (priv && priv->conn)
+ ndev = priv->conn->netdev;
+ if (!ndev)
+ goto out;
+ netif_device_detach(ndev);
+ priv->pm_state = fsm_getstate(priv->fsm);
+ rc = netiucv_close(ndev);
+out:
+ return rc;
+}
+
+/**
+ * netiucv_pm_restore_thaw() - Thaw and restore PM callback
+ * @dev: netiucv device
+ *
+ * re-open netiucv interfaces closed during freeze
+ */
+static int netiucv_pm_restore_thaw(struct device *dev)
+{
+ struct netiucv_priv *priv = dev->driver_data;
+ struct net_device *ndev = NULL;
+ int rc = 0;
+
+ IUCV_DBF_TEXT(trace, 3, __func__);
+ if (priv && priv->conn)
+ ndev = priv->conn->netdev;
+ if (!ndev)
+ goto out;
+ switch (priv->pm_state) {
+ case DEV_STATE_RUNNING:
+ case DEV_STATE_STARTWAIT:
+ rc = netiucv_open(ndev);
+ break;
+ default:
+ break;
+ }
+ netif_device_attach(ndev);
+out:
+ return rc;
+}
+
/**
* Start transmission of a packet.
* Called from generic network device layer.
static ssize_t user_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 5, __func__);
return sprintf(buf, "%s\n", netiucv_printname(priv->conn->userid));
static ssize_t user_write(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
struct net_device *ndev = priv->conn->netdev;
char *p;
char *tmp;
static ssize_t buffer_show (struct device *dev, struct device_attribute *attr,
char *buf)
- { struct netiucv_priv *priv = dev->driver_data;
+ {
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 5, __func__);
return sprintf(buf, "%d\n", priv->conn->max_buffsize);
static ssize_t buffer_write (struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
struct net_device *ndev = priv->conn->netdev;
char *e;
int bs1;
static ssize_t dev_fsm_show (struct device *dev, struct device_attribute *attr,
char *buf)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 5, __func__);
return sprintf(buf, "%s\n", fsm_getstate_str(priv->fsm));
static ssize_t conn_fsm_show (struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 5, __func__);
return sprintf(buf, "%s\n", fsm_getstate_str(priv->conn->fsm));
static ssize_t maxmulti_show (struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 5, __func__);
return sprintf(buf, "%ld\n", priv->conn->prof.maxmulti);
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 4, __func__);
priv->conn->prof.maxmulti = 0;
static ssize_t maxcq_show (struct device *dev, struct device_attribute *attr,
char *buf)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 5, __func__);
return sprintf(buf, "%ld\n", priv->conn->prof.maxcqueue);
static ssize_t maxcq_write (struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 4, __func__);
priv->conn->prof.maxcqueue = 0;
static ssize_t sdoio_show (struct device *dev, struct device_attribute *attr,
char *buf)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 5, __func__);
return sprintf(buf, "%ld\n", priv->conn->prof.doios_single);
static ssize_t sdoio_write (struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 4, __func__);
priv->conn->prof.doios_single = 0;
static ssize_t mdoio_show (struct device *dev, struct device_attribute *attr,
char *buf)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 5, __func__);
return sprintf(buf, "%ld\n", priv->conn->prof.doios_multi);
static ssize_t mdoio_write (struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 5, __func__);
priv->conn->prof.doios_multi = 0;
static ssize_t txlen_show (struct device *dev, struct device_attribute *attr,
char *buf)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 5, __func__);
return sprintf(buf, "%ld\n", priv->conn->prof.txlen);
static ssize_t txlen_write (struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 4, __func__);
priv->conn->prof.txlen = 0;
static ssize_t txtime_show (struct device *dev, struct device_attribute *attr,
char *buf)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 5, __func__);
return sprintf(buf, "%ld\n", priv->conn->prof.tx_time);
static ssize_t txtime_write (struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 4, __func__);
priv->conn->prof.tx_time = 0;
static ssize_t txpend_show (struct device *dev, struct device_attribute *attr,
char *buf)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 5, __func__);
return sprintf(buf, "%ld\n", priv->conn->prof.tx_pending);
static ssize_t txpend_write (struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 4, __func__);
priv->conn->prof.tx_pending = 0;
static ssize_t txmpnd_show (struct device *dev, struct device_attribute *attr,
char *buf)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 5, __func__);
return sprintf(buf, "%ld\n", priv->conn->prof.tx_max_pending);
static ssize_t txmpnd_write (struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
IUCV_DBF_TEXT(trace, 4, __func__);
priv->conn->prof.tx_max_pending = 0;
struct device *dev = kzalloc(sizeof(struct device), GFP_KERNEL);
int ret;
-
IUCV_DBF_TEXT(trace, 3, __func__);
if (dev) {
if (ret)
goto out_unreg;
priv->dev = dev;
- dev->driver_data = priv;
+ dev_set_drvdata(dev, priv);
return 0;
out_unreg:
netiucv_unregister_device(dev);
}
+ device_unregister(netiucv_dev);
driver_unregister(&netiucv_driver);
iucv_unregister(&netiucv_handler, 1);
iucv_unregister_dbf_views();
IUCV_DBF_TEXT_(setup, 2, "ret %d from driver_register\n", rc);
goto out_iucv;
}
-
+ /* establish dummy device */
+ netiucv_dev = kzalloc(sizeof(struct device), GFP_KERNEL);
+ if (!netiucv_dev) {
+ rc = -ENOMEM;
+ goto out_driver;
+ }
+ dev_set_name(netiucv_dev, "netiucv");
+ netiucv_dev->bus = &iucv_bus;
+ netiucv_dev->parent = iucv_root;
+ netiucv_dev->release = (void (*)(struct device *))kfree;
+ netiucv_dev->driver = &netiucv_driver;
+ rc = device_register(netiucv_dev);
+ if (rc)
+ goto out_driver;
netiucv_banner();
return rc;
+out_driver:
+ driver_unregister(&netiucv_driver);
out_iucv:
iucv_unregister(&netiucv_handler, 1);
out_dbf:
#define KERN_INFO "<6>" /* informational */
#define KERN_DEBUG "<7>" /* debug-level messages */
+/* Use the default kernel loglevel */
+#define KERN_DEFAULT "<d>"
/*
* Annotation for a "continued" line of log printout (only done after a
* line that had no enclosing \n). Only to be used by core/arch code
* during early bootup (a continued line is not SMP-safe otherwise).
*/
-#define KERN_CONT ""
+#define KERN_CONT "<c>"
extern int console_printk[];
*
* Use tracing_on/tracing_off when you want to quickly turn on or off
* tracing. It simply enables or disables the recording of the trace events.
- * This also corresponds to the user space debugfs/tracing/tracing_on
+ * This also corresponds to the user space /sys/kernel/debug/tracing/tracing_on
* file, which gives a means for the kernel and userspace to interact.
* Place a tracing_off() in the kernel where you want tracing to end.
* From user space, examine the trace, and then echo 1 > tracing_on
git.samba.org / sfrench / cifs-2.6.git / commitdiff