X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fs390%2Fcrypto%2Fap_bus.c;h=c7d1355237b668d9342320366b544de205643187;hb=920841d8d1d61bc12b43f95a579a5374f6d98f81;hp=79d89c3689194b7e4b1d1925537f7a510ad8cf41;hpb=79acbb3ff2d8095b692e1502b9eb2ccec348de26;p=powerpc.git

diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 79d89c3689..c7d1355237 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -33,11 +33,12 @@
 #include <linux/kthread.h>
 #include <linux/mutex.h>
 #include <asm/s390_rdev.h>
+#include <asm/reset.h>
 
 #include "ap_bus.h"
 
 /* Some prototypes. */
-static void ap_scan_bus(void *);
+static void ap_scan_bus(struct work_struct *);
 static void ap_poll_all(unsigned long);
 static void ap_poll_timeout(unsigned long);
 static int ap_poll_thread_start(void);
@@ -71,7 +72,7 @@ static struct device *ap_root_device = NULL;
 static struct workqueue_struct *ap_work_queue;
 static struct timer_list ap_config_timer;
 static int ap_config_time = AP_CONFIG_TIME;
-static DECLARE_WORK(ap_config_work, ap_scan_bus, NULL);
+static DECLARE_WORK(ap_config_work, ap_scan_bus);
 
 /**
  * Tasklet & timer for AP request polling.
@@ -431,7 +432,15 @@ static int ap_uevent (struct device *dev, char **envp, int num_envp,
 			   ap_dev->device_type);
 	if (buffer_size - length <= 0)
 		return -ENOMEM;
-	envp[1] = 0;
+	buffer += length;
+	buffer_size -= length;
+	/* Add MODALIAS= */
+	envp[1] = buffer;
+	length = scnprintf(buffer, buffer_size, "MODALIAS=ap:t%02X",
+			   ap_dev->device_type);
+	if (buffer_size - length <= 0)
+		return -ENOMEM;
+	envp[2] = NULL;
 	return 0;
 }
 
@@ -456,7 +465,7 @@ static int ap_device_probe(struct device *dev)
  * Flush all requests from the request/pending queue of an AP device.
  * @ap_dev: pointer to the AP device.
  */
-static inline void __ap_flush_queue(struct ap_device *ap_dev)
+static void __ap_flush_queue(struct ap_device *ap_dev)
 {
 	struct ap_message *ap_msg, *next;
 
@@ -578,7 +587,7 @@ static struct bus_attribute *const ap_bus_attrs[] = {
 /**
  * Pick one of the 16 ap domains.
  */
-static inline int ap_select_domain(void)
+static int ap_select_domain(void)
 {
 	int queue_depth, device_type, count, max_count, best_domain;
 	int rc, i, j;
@@ -724,7 +733,7 @@ static void ap_device_release(struct device *dev)
 	kfree(ap_dev);
 }
 
-static void ap_scan_bus(void *data)
+static void ap_scan_bus(struct work_struct *unused)
 {
 	struct ap_device *ap_dev;
 	struct device *dev;
@@ -816,7 +825,7 @@ static inline void ap_schedule_poll_timer(void)
  *	   required, bit 2^1 is set if the poll timer needs to get armed
  * Returns 0 if the device is still present, -ENODEV if not.
  */
-static inline int ap_poll_read(struct ap_device *ap_dev, unsigned long *flags)
+static int ap_poll_read(struct ap_device *ap_dev, unsigned long *flags)
 {
 	struct ap_queue_status status;
 	struct ap_message *ap_msg;
@@ -863,7 +872,7 @@ static inline int ap_poll_read(struct ap_device *ap_dev, unsigned long *flags)
  *	   required, bit 2^1 is set if the poll timer needs to get armed
  * Returns 0 if the device is still present, -ENODEV if not.
  */
-static inline int ap_poll_write(struct ap_device *ap_dev, unsigned long *flags)
+static int ap_poll_write(struct ap_device *ap_dev, unsigned long *flags)
 {
 	struct ap_queue_status status;
 	struct ap_message *ap_msg;
@@ -1120,6 +1129,27 @@ static void ap_poll_thread_stop(void)
 	mutex_unlock(&ap_poll_thread_mutex);
 }
 
+static void ap_reset_domain(void)
+{
+	int i;
+
+	for (i = 0; i < AP_DEVICES; i++)
+		ap_reset_queue(AP_MKQID(i, ap_domain_index));
+}
+
+static void ap_reset_all(void)
+{
+	int i, j;
+
+	for (i = 0; i < AP_DOMAINS; i++)
+		for (j = 0; j < AP_DEVICES; j++)
+			ap_reset_queue(AP_MKQID(j, i));
+}
+
+static struct reset_call ap_reset_call = {
+	.fn = ap_reset_all,
+};
+
 /**
  * The module initialization code.
  */
@@ -1136,6 +1166,7 @@ int __init ap_module_init(void)
 		printk(KERN_WARNING "AP instructions not installed.\n");
 		return -ENODEV;
 	}
+	register_reset_call(&ap_reset_call);
 
 	/* Create /sys/bus/ap. */
 	rc = bus_register(&ap_bus_type);
@@ -1189,6 +1220,7 @@ out_bus:
 		bus_remove_file(&ap_bus_type, ap_bus_attrs[i]);
 	bus_unregister(&ap_bus_type);
 out:
+	unregister_reset_call(&ap_reset_call);
 	return rc;
 }
 
@@ -1205,10 +1237,12 @@ void ap_module_exit(void)
 	int i;
 	struct device *dev;
 
+	ap_reset_domain();
 	ap_poll_thread_stop();
 	del_timer_sync(&ap_config_timer);
 	del_timer_sync(&ap_poll_timer);
 	destroy_workqueue(ap_work_queue);
+	tasklet_kill(&ap_tasklet);
 	s390_root_dev_unregister(ap_root_device);
 	while ((dev = bus_find_device(&ap_bus_type, NULL, NULL,
 		    __ap_match_all)))
@@ -1219,6 +1253,7 @@ void ap_module_exit(void)
 	for (i = 0; ap_bus_attrs[i]; i++)
 		bus_remove_file(&ap_bus_type, ap_bus_attrs[i]);
 	bus_unregister(&ap_bus_type);
+	unregister_reset_call(&ap_reset_call);
 }
 
 #ifndef CONFIG_ZCRYPT_MONOLITHIC