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Diffstat (limited to 'drivers/s390/net/lcs.c')
-rw-r--r--drivers/s390/net/lcs.c94
1 files changed, 75 insertions, 19 deletions
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index a45bc24eb5f..8c675905448 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -1,15 +1,12 @@
/*
- * 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
@@ -1939,7 +1936,7 @@ lcs_portno_show (struct device *dev, struct device_attribute *attr, char *buf)
{
struct lcs_card *card;
- card = (struct lcs_card *)dev->driver_data;
+ card = dev_get_drvdata(dev);
if (!card)
return 0;
@@ -1956,7 +1953,7 @@ lcs_portno_store (struct device *dev, struct device_attribute *attr, const char
struct lcs_card *card;
int value;
- card = (struct lcs_card *)dev->driver_data;
+ card = dev_get_drvdata(dev);
if (!card)
return 0;
@@ -1990,7 +1987,7 @@ lcs_timeout_show(struct device *dev, struct device_attribute *attr, char *buf)
{
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;
}
@@ -2001,7 +1998,7 @@ lcs_timeout_store (struct device *dev, struct device_attribute *attr, const char
struct lcs_card *card;
int value;
- card = (struct lcs_card *)dev->driver_data;
+ card = dev_get_drvdata(dev);
if (!card)
return 0;
@@ -2020,7 +2017,7 @@ static ssize_t
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;
@@ -2073,7 +2070,7 @@ lcs_probe_device(struct ccwgroup_device *ccwgdev)
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;
@@ -2090,7 +2087,7 @@ lcs_register_netdev(struct ccwgroup_device *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);
@@ -2123,7 +2120,7 @@ lcs_new_device(struct ccwgroup_device *ccwgdev)
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;
@@ -2229,7 +2226,7 @@ __lcs_shutdown_device(struct ccwgroup_device *ccwgdev, int recovery_mode)
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) {
@@ -2296,7 +2293,7 @@ lcs_remove_device(struct ccwgroup_device *ccwgdev)
{
struct lcs_card *card;
- card = (struct lcs_card *)ccwgdev->dev.driver_data;
+ card = dev_get_drvdata(&ccwgdev->dev);
if (!card)
return;
@@ -2313,6 +2310,60 @@ lcs_remove_device(struct ccwgroup_device *ccwgdev)
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
*/
@@ -2325,6 +2376,11 @@ static struct ccwgroup_driver lcs_group_driver = {
.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,
};
/**