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path: root/drivers/message/i2o/driver.c
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Diffstat (limited to 'drivers/message/i2o/driver.c')
-rw-r--r--drivers/message/i2o/driver.c130
1 files changed, 66 insertions, 64 deletions
diff --git a/drivers/message/i2o/driver.c b/drivers/message/i2o/driver.c
index 91f4edbb2a2..739bfdef0c6 100644
--- a/drivers/message/i2o/driver.c
+++ b/drivers/message/i2o/driver.c
@@ -17,9 +17,12 @@
#include <linux/module.h>
#include <linux/rwsem.h>
#include <linux/i2o.h>
+#include "core.h"
+
+#define OSM_NAME "i2o"
/* max_drivers - Maximum I2O drivers (OSMs) which could be registered */
-unsigned int i2o_max_drivers = I2O_MAX_DRIVERS;
+static unsigned int i2o_max_drivers = I2O_MAX_DRIVERS;
module_param_named(max_drivers, i2o_max_drivers, uint, 0);
MODULE_PARM_DESC(max_drivers, "maximum number of OSM's to support");
@@ -76,17 +79,16 @@ int i2o_driver_register(struct i2o_driver *drv)
int rc = 0;
unsigned long flags;
- pr_debug("i2o: Register driver %s\n", drv->name);
+ osm_debug("Register driver %s\n", drv->name);
if (drv->event) {
drv->event_queue = create_workqueue(drv->name);
if (!drv->event_queue) {
- printk(KERN_ERR "i2o: Could not initialize event queue "
- "for driver %s\n", drv->name);
+ osm_err("Could not initialize event queue for driver "
+ "%s\n", drv->name);
return -EFAULT;
}
- pr_debug("i2o: Event queue initialized for driver %s\n",
- drv->name);
+ osm_debug("Event queue initialized for driver %s\n", drv->name);
} else
drv->event_queue = NULL;
@@ -97,8 +99,8 @@ int i2o_driver_register(struct i2o_driver *drv)
for (i = 0; i2o_drivers[i]; i++)
if (i >= i2o_max_drivers) {
- printk(KERN_ERR "i2o: too many drivers registered, "
- "increase max_drivers\n");
+ osm_err("too many drivers registered, increase "
+ "max_drivers\n");
spin_unlock_irqrestore(&i2o_drivers_lock, flags);
return -EFAULT;
}
@@ -108,18 +110,16 @@ int i2o_driver_register(struct i2o_driver *drv)
spin_unlock_irqrestore(&i2o_drivers_lock, flags);
- pr_debug("i2o: driver %s gets context id %d\n", drv->name,
- drv->context);
+ osm_debug("driver %s gets context id %d\n", drv->name, drv->context);
list_for_each_entry(c, &i2o_controllers, list) {
struct i2o_device *i2o_dev;
i2o_driver_notify_controller_add(drv, c);
list_for_each_entry(i2o_dev, &c->devices, list)
- i2o_driver_notify_device_add(drv, i2o_dev);
+ i2o_driver_notify_device_add(drv, i2o_dev);
}
-
rc = driver_register(&drv->driver);
if (rc)
destroy_workqueue(drv->event_queue);
@@ -139,7 +139,7 @@ void i2o_driver_unregister(struct i2o_driver *drv)
struct i2o_controller *c;
unsigned long flags;
- pr_debug("i2o: unregister driver %s\n", drv->name);
+ osm_debug("unregister driver %s\n", drv->name);
driver_unregister(&drv->driver);
@@ -159,7 +159,7 @@ void i2o_driver_unregister(struct i2o_driver *drv)
if (drv->event_queue) {
destroy_workqueue(drv->event_queue);
drv->event_queue = NULL;
- pr_debug("i2o: event queue removed for %s\n", drv->name);
+ osm_debug("event queue removed for %s\n", drv->name);
}
};
@@ -176,68 +176,70 @@ void i2o_driver_unregister(struct i2o_driver *drv)
* on success and if the message should be flushed afterwords. Returns
* negative error code on failure (the message will be flushed too).
*/
-int i2o_driver_dispatch(struct i2o_controller *c, u32 m,
- struct i2o_message __iomem *msg)
+int i2o_driver_dispatch(struct i2o_controller *c, u32 m)
{
struct i2o_driver *drv;
- u32 context = readl(&msg->u.s.icntxt);
+ struct i2o_message *msg = i2o_msg_out_to_virt(c, m);
+ u32 context = le32_to_cpu(msg->u.s.icntxt);
+ unsigned long flags;
- if (likely(context < i2o_max_drivers)) {
- spin_lock(&i2o_drivers_lock);
- drv = i2o_drivers[context];
- spin_unlock(&i2o_drivers_lock);
+ if (unlikely(context >= i2o_max_drivers)) {
+ osm_warn("%s: Spurious reply to unknown driver %d\n", c->name,
+ context);
+ return -EIO;
+ }
- if (unlikely(!drv)) {
- printk(KERN_WARNING "%s: Spurious reply to unknown "
- "driver %d\n", c->name, context);
- return -EIO;
- }
+ spin_lock_irqsave(&i2o_drivers_lock, flags);
+ drv = i2o_drivers[context];
+ spin_unlock_irqrestore(&i2o_drivers_lock, flags);
- if ((readl(&msg->u.head[1]) >> 24) == I2O_CMD_UTIL_EVT_REGISTER) {
- struct i2o_device *dev, *tmp;
- struct i2o_event *evt;
- u16 size;
- u16 tid;
+ if (unlikely(!drv)) {
+ osm_warn("%s: Spurious reply to unknown driver %d\n", c->name,
+ context);
+ return -EIO;
+ }
- tid = readl(&msg->u.head[1]) & 0x1fff;
+ if ((le32_to_cpu(msg->u.head[1]) >> 24) == I2O_CMD_UTIL_EVT_REGISTER) {
+ struct i2o_device *dev, *tmp;
+ struct i2o_event *evt;
+ u16 size;
+ u16 tid = le32_to_cpu(msg->u.head[1]) & 0xfff;
- pr_debug("%s: event received from device %d\n", c->name,
- tid);
+ osm_debug("event received from device %d\n", tid);
- /* cut of header from message size (in 32-bit words) */
- size = (readl(&msg->u.head[0]) >> 16) - 5;
+ if (!drv->event)
+ return -EIO;
- evt = kmalloc(size * 4 + sizeof(*evt), GFP_ATOMIC);
- if (!evt)
- return -ENOMEM;
- memset(evt, 0, size * 4 + sizeof(*evt));
+ /* cut of header from message size (in 32-bit words) */
+ size = (le32_to_cpu(msg->u.head[0]) >> 16) - 5;
- evt->size = size;
- memcpy_fromio(&evt->tcntxt, &msg->u.s.tcntxt,
- (size + 2) * 4);
+ evt = kmalloc(size * 4 + sizeof(*evt), GFP_ATOMIC | __GFP_ZERO);
+ if (!evt)
+ return -ENOMEM;
- list_for_each_entry_safe(dev, tmp, &c->devices, list)
- if (dev->lct_data.tid == tid) {
- evt->i2o_dev = dev;
- break;
- }
+ evt->size = size;
+ evt->tcntxt = le32_to_cpu(msg->u.s.tcntxt);
+ evt->event_indicator = le32_to_cpu(msg->body[0]);
+ memcpy(&evt->tcntxt, &msg->u.s.tcntxt, size * 4);
- INIT_WORK(&evt->work, (void (*)(void *))drv->event,
- evt);
- queue_work(drv->event_queue, &evt->work);
- return 1;
+ list_for_each_entry_safe(dev, tmp, &c->devices, list)
+ if (dev->lct_data.tid == tid) {
+ evt->i2o_dev = dev;
+ break;
}
- if (likely(drv->reply))
- return drv->reply(c, m, msg);
- else
- pr_debug("%s: Reply to driver %s, but no reply function"
- " defined!\n", c->name, drv->name);
+ INIT_WORK(&evt->work, (void (*)(void *))drv->event, evt);
+ queue_work(drv->event_queue, &evt->work);
+ return 1;
+ }
+
+ if (unlikely(!drv->reply)) {
+ osm_debug("%s: Reply to driver %s, but no reply function"
+ " defined!\n", c->name, drv->name);
return -EIO;
- } else
- printk(KERN_WARNING "%s: Spurious reply to unknown driver "
- "%d\n", c->name, readl(&msg->u.s.icntxt));
- return -EIO;
+ }
+
+ return drv->reply(c, m, msg);
}
/**
@@ -334,11 +336,11 @@ int __init i2o_driver_init(void)
if ((i2o_max_drivers < 2) || (i2o_max_drivers > 64) ||
((i2o_max_drivers ^ (i2o_max_drivers - 1)) !=
(2 * i2o_max_drivers - 1))) {
- printk(KERN_WARNING "i2o: max_drivers set to %d, but must be "
- ">=2 and <= 64 and a power of 2\n", i2o_max_drivers);
+ osm_warn("max_drivers set to %d, but must be >=2 and <= 64 and "
+ "a power of 2\n", i2o_max_drivers);
i2o_max_drivers = I2O_MAX_DRIVERS;
}
- printk(KERN_INFO "i2o: max drivers = %d\n", i2o_max_drivers);
+ osm_info("max drivers = %d\n", i2o_max_drivers);
i2o_drivers =
kmalloc(i2o_max_drivers * sizeof(*i2o_drivers), GFP_KERNEL);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 20:42:03 +0000