#include <linux/module.h>
#include <linux/i2o.h>
#include <linux/delay.h>
-
-/* Exec OSM functions */
-extern struct bus_type i2o_bus_type;
+#include <linux/string.h>
+#include <linux/slab.h>
+#include "core.h"
/**
* i2o_device_issue_claim - claim or release a device
static inline int i2o_device_issue_claim(struct i2o_device *dev, u32 cmd,
u32 type)
{
- struct i2o_message __iomem *msg;
- u32 m;
+ struct i2o_message *msg;
- m = i2o_msg_get_wait(dev->iop, &msg, I2O_TIMEOUT_MESSAGE_GET);
- if (m == I2O_QUEUE_EMPTY)
- return -ETIMEDOUT;
+ msg = i2o_msg_get_wait(dev->iop, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
- writel(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
- writel(cmd << 24 | HOST_TID << 12 | dev->lct_data.tid, &msg->u.head[1]);
- writel(type, &msg->body[0]);
+ msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(cmd << 24 | HOST_TID << 12 | dev->lct_data.tid);
+ msg->body[0] = cpu_to_le32(type);
- return i2o_msg_post_wait(dev->iop, m, 60);
-};
+ return i2o_msg_post_wait(dev->iop, msg, 60);
+}
/**
- * i2o_device_claim - claim a device for use by an OSM
+ * i2o_device_claim - claim a device for use by an OSM
* @dev: I2O device to claim
* @drv: I2O driver which wants to claim the device
*
up(&dev->lock);
return rc;
-};
+}
/**
* i2o_device_claim_release - release a device that the OSM is using
up(&dev->lock);
return rc;
-};
+}
/**
* i2o_device_release - release the memory for a I2O device
pr_debug("i2o: device %s released\n", dev->bus_id);
kfree(i2o_dev);
-};
+}
/**
- * i2o_device_class_release - Remove I2O device attributes
- * @cd: I2O class device which is added to the I2O device class
+ * i2o_device_show_class_id - Displays class id of I2O device
+ * @dev: device of which the class id should be displayed
+ * @attr: pointer to device attribute
+ * @buf: buffer into which the class id should be printed
*
- * Removes attributes from the I2O device again. Also search each device
- * on the controller for I2O devices which refert to this device as parent
- * or user and remove this links also.
+ * Returns the number of bytes which are printed into the buffer.
*/
-static void i2o_device_class_release(struct class_device *cd)
+static ssize_t i2o_device_show_class_id(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
{
- struct i2o_device *i2o_dev, *tmp;
- struct i2o_controller *c;
+ struct i2o_device *i2o_dev = to_i2o_device(dev);
- i2o_dev = to_i2o_device(cd->dev);
- c = i2o_dev->iop;
+ sprintf(buf, "0x%03x\n", i2o_dev->lct_data.class_id);
+ return strlen(buf) + 1;
+}
- sysfs_remove_link(&i2o_dev->device.kobj, "parent");
- sysfs_remove_link(&i2o_dev->device.kobj, "user");
+/**
+ * i2o_device_show_tid - Displays TID of I2O device
+ * @dev: device of which the TID should be displayed
+ * @attr: pointer to device attribute
+ * @buf: buffer into which the TID should be printed
+ *
+ * Returns the number of bytes which are printed into the buffer.
+ */
+static ssize_t i2o_device_show_tid(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct i2o_device *i2o_dev = to_i2o_device(dev);
- list_for_each_entry(tmp, &c->devices, list) {
- if (tmp->lct_data.parent_tid == i2o_dev->lct_data.tid)
- sysfs_remove_link(&tmp->device.kobj, "parent");
- if (tmp->lct_data.user_tid == i2o_dev->lct_data.tid)
- sysfs_remove_link(&tmp->device.kobj, "user");
- }
-};
+ sprintf(buf, "0x%03x\n", i2o_dev->lct_data.tid);
+ return strlen(buf) + 1;
+}
-/* I2O device class */
-static struct class i2o_device_class = {
- .name = "i2o_device",
- .release = i2o_device_class_release
+/* I2O device attributes */
+struct device_attribute i2o_device_attrs[] = {
+ __ATTR(class_id, S_IRUGO, i2o_device_show_class_id, NULL),
+ __ATTR(tid, S_IRUGO, i2o_device_show_tid, NULL),
+ __ATTR_NULL
};
/**
{
struct i2o_device *dev;
- dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (!dev)
return ERR_PTR(-ENOMEM);
- memset(dev, 0, sizeof(*dev));
-
INIT_LIST_HEAD(&dev->list);
init_MUTEX(&dev->lock);
dev->device.bus = &i2o_bus_type;
dev->device.release = &i2o_device_release;
- dev->classdev.class = &i2o_device_class;
- dev->classdev.dev = &dev->device;
return dev;
-};
+}
/**
* i2o_device_add - allocate a new I2O device and add it to the IOP
static struct i2o_device *i2o_device_add(struct i2o_controller *c,
i2o_lct_entry * entry)
{
- struct i2o_device *dev;
+ struct i2o_device *i2o_dev, *tmp;
- dev = i2o_device_alloc();
- if (IS_ERR(dev)) {
+ i2o_dev = i2o_device_alloc();
+ if (IS_ERR(i2o_dev)) {
printk(KERN_ERR "i2o: unable to allocate i2o device\n");
- return dev;
+ return i2o_dev;
}
- dev->lct_data = *entry;
+ i2o_dev->lct_data = *entry;
- snprintf(dev->device.bus_id, BUS_ID_SIZE, "%d:%03x", c->unit,
- dev->lct_data.tid);
+ snprintf(i2o_dev->device.bus_id, BUS_ID_SIZE, "%d:%03x", c->unit,
+ i2o_dev->lct_data.tid);
- snprintf(dev->classdev.class_id, BUS_ID_SIZE, "%d:%03x", c->unit,
- dev->lct_data.tid);
+ i2o_dev->iop = c;
+ i2o_dev->device.parent = &c->device;
- dev->iop = c;
- dev->device.parent = &c->device;
+ device_register(&i2o_dev->device);
- device_register(&dev->device);
+ list_add_tail(&i2o_dev->list, &c->devices);
- list_add_tail(&dev->list, &c->devices);
+ /* create user entries for this device */
+ tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.user_tid);
+ if (tmp && (tmp != i2o_dev))
+ sysfs_create_link(&i2o_dev->device.kobj, &tmp->device.kobj,
+ "user");
- class_device_register(&dev->classdev);
+ /* create user entries refering to this device */
+ list_for_each_entry(tmp, &c->devices, list)
+ if ((tmp->lct_data.user_tid == i2o_dev->lct_data.tid)
+ && (tmp != i2o_dev))
+ sysfs_create_link(&tmp->device.kobj,
+ &i2o_dev->device.kobj, "user");
- i2o_driver_notify_device_add_all(dev);
+ /* create parent entries for this device */
+ tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.parent_tid);
+ if (tmp && (tmp != i2o_dev))
+ sysfs_create_link(&i2o_dev->device.kobj, &tmp->device.kobj,
+ "parent");
+
+ /* create parent entries refering to this device */
+ list_for_each_entry(tmp, &c->devices, list)
+ if ((tmp->lct_data.parent_tid == i2o_dev->lct_data.tid)
+ && (tmp != i2o_dev))
+ sysfs_create_link(&tmp->device.kobj,
+ &i2o_dev->device.kobj, "parent");
- pr_debug("i2o: device %s added\n", dev->device.bus_id);
+ i2o_driver_notify_device_add_all(i2o_dev);
- return dev;
-};
+ pr_debug("i2o: device %s added\n", i2o_dev->device.bus_id);
+
+ return i2o_dev;
+}
/**
* i2o_device_remove - remove an I2O device from the I2O core
*/
void i2o_device_remove(struct i2o_device *i2o_dev)
{
+ struct i2o_device *tmp;
+ struct i2o_controller *c = i2o_dev->iop;
+
i2o_driver_notify_device_remove_all(i2o_dev);
- class_device_unregister(&i2o_dev->classdev);
+
+ sysfs_remove_link(&i2o_dev->device.kobj, "parent");
+ sysfs_remove_link(&i2o_dev->device.kobj, "user");
+
+ list_for_each_entry(tmp, &c->devices, list) {
+ if (tmp->lct_data.parent_tid == i2o_dev->lct_data.tid)
+ sysfs_remove_link(&tmp->device.kobj, "parent");
+ if (tmp->lct_data.user_tid == i2o_dev->lct_data.tid)
+ sysfs_remove_link(&tmp->device.kobj, "user");
+ }
list_del(&i2o_dev->list);
+
device_unregister(&i2o_dev->device);
-};
+}
/**
* i2o_device_parse_lct - Parse a previously fetched LCT and create devices
{
struct i2o_device *dev, *tmp;
i2o_lct *lct;
- int i;
- int max;
+ u32 *dlct = c->dlct.virt;
+ int max = 0, i = 0;
+ u16 table_size;
+ u32 buf;
down(&c->lct_lock);
- if (c->lct)
- kfree(c->lct);
+ kfree(c->lct);
- lct = c->dlct.virt;
+ buf = le32_to_cpu(*dlct++);
+ table_size = buf & 0xffff;
- c->lct = kmalloc(lct->table_size * 4, GFP_KERNEL);
- if (!c->lct) {
+ lct = c->lct = kmalloc(table_size * 4, GFP_KERNEL);
+ if (!lct) {
up(&c->lct_lock);
return -ENOMEM;
}
- if (lct->table_size * 4 > c->dlct.len) {
- memcpy_fromio(c->lct, c->dlct.virt, c->dlct.len);
- up(&c->lct_lock);
- return -EAGAIN;
- }
-
- memcpy_fromio(c->lct, c->dlct.virt, lct->table_size * 4);
+ lct->lct_ver = buf >> 28;
+ lct->boot_tid = buf >> 16 & 0xfff;
+ lct->table_size = table_size;
+ lct->change_ind = le32_to_cpu(*dlct++);
+ lct->iop_flags = le32_to_cpu(*dlct++);
- lct = c->lct;
-
- max = (lct->table_size - 3) / 9;
+ table_size -= 3;
pr_debug("%s: LCT has %d entries (LCT size: %d)\n", c->name, max,
lct->table_size);
- /* remove devices, which are not in the LCT anymore */
- list_for_each_entry_safe(dev, tmp, &c->devices, list) {
+ while (table_size > 0) {
+ i2o_lct_entry *entry = &lct->lct_entry[max];
int found = 0;
- for (i = 0; i < max; i++) {
- if (lct->lct_entry[i].tid == dev->lct_data.tid) {
+ buf = le32_to_cpu(*dlct++);
+ entry->entry_size = buf & 0xffff;
+ entry->tid = buf >> 16 & 0xfff;
+
+ entry->change_ind = le32_to_cpu(*dlct++);
+ entry->device_flags = le32_to_cpu(*dlct++);
+
+ buf = le32_to_cpu(*dlct++);
+ entry->class_id = buf & 0xfff;
+ entry->version = buf >> 12 & 0xf;
+ entry->vendor_id = buf >> 16;
+
+ entry->sub_class = le32_to_cpu(*dlct++);
+
+ buf = le32_to_cpu(*dlct++);
+ entry->user_tid = buf & 0xfff;
+ entry->parent_tid = buf >> 12 & 0xfff;
+ entry->bios_info = buf >> 24;
+
+ memcpy(&entry->identity_tag, dlct, 8);
+ dlct += 2;
+
+ entry->event_capabilities = le32_to_cpu(*dlct++);
+
+ /* add new devices, which are new in the LCT */
+ list_for_each_entry_safe(dev, tmp, &c->devices, list) {
+ if (entry->tid == dev->lct_data.tid) {
found = 1;
break;
}
}
if (!found)
- i2o_device_remove(dev);
+ i2o_device_add(c, entry);
+
+ table_size -= 9;
+ max++;
}
- /* add new devices, which are new in the LCT */
- for (i = 0; i < max; i++) {
+ /* remove devices, which are not in the LCT anymore */
+ list_for_each_entry_safe(dev, tmp, &c->devices, list) {
int found = 0;
- list_for_each_entry_safe(dev, tmp, &c->devices, list) {
+ for (i = 0; i < max; i++) {
if (lct->lct_entry[i].tid == dev->lct_data.tid) {
found = 1;
break;
}
if (!found)
- i2o_device_add(c, &lct->lct_entry[i]);
+ i2o_device_remove(dev);
}
- up(&c->lct_lock);
-
- return 0;
-};
-
-/**
- * i2o_device_class_show_class_id - Displays class id of I2O device
- * @cd: class device of which the class id should be displayed
- * @buf: buffer into which the class id should be printed
- *
- * Returns the number of bytes which are printed into the buffer.
- */
-static ssize_t i2o_device_class_show_class_id(struct class_device *cd,
- char *buf)
-{
- struct i2o_device *dev = to_i2o_device(cd->dev);
-
- sprintf(buf, "%03x\n", dev->lct_data.class_id);
- return strlen(buf) + 1;
-};
-
-/**
- * i2o_device_class_show_tid - Displays TID of I2O device
- * @cd: class device of which the TID should be displayed
- * @buf: buffer into which the class id should be printed
- *
- * Returns the number of bytes which are printed into the buffer.
- */
-static ssize_t i2o_device_class_show_tid(struct class_device *cd, char *buf)
-{
- struct i2o_device *dev = to_i2o_device(cd->dev);
- sprintf(buf, "%03x\n", dev->lct_data.tid);
- return strlen(buf) + 1;
-};
-
-/* I2O device class attributes */
-static CLASS_DEVICE_ATTR(class_id, S_IRUGO, i2o_device_class_show_class_id,
- NULL);
-static CLASS_DEVICE_ATTR(tid, S_IRUGO, i2o_device_class_show_tid, NULL);
-
-/**
- * i2o_device_class_add - Adds attributes to the I2O device
- * @cd: I2O class device which is added to the I2O device class
- *
- * This function get called when a I2O device is added to the class. It
- * creates the attributes for each device and creates user/parent symlink
- * if necessary.
- *
- * Returns 0 on success or negative error code on failure.
- */
-static int i2o_device_class_add(struct class_device *cd)
-{
- struct i2o_device *i2o_dev, *tmp;
- struct i2o_controller *c;
-
- i2o_dev = to_i2o_device(cd->dev);
- c = i2o_dev->iop;
-
- class_device_create_file(cd, &class_device_attr_class_id);
- class_device_create_file(cd, &class_device_attr_tid);
-
- /* create user entries for this device */
- tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.user_tid);
- if (tmp)
- sysfs_create_link(&i2o_dev->device.kobj, &tmp->device.kobj,
- "user");
-
- /* create user entries refering to this device */
- list_for_each_entry(tmp, &c->devices, list)
- if (tmp->lct_data.user_tid == i2o_dev->lct_data.tid)
- sysfs_create_link(&tmp->device.kobj,
- &i2o_dev->device.kobj, "user");
-
- /* create parent entries for this device */
- tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.parent_tid);
- if (tmp)
- sysfs_create_link(&i2o_dev->device.kobj, &tmp->device.kobj,
- "parent");
-
- /* create parent entries refering to this device */
- list_for_each_entry(tmp, &c->devices, list)
- if (tmp->lct_data.parent_tid == i2o_dev->lct_data.tid)
- sysfs_create_link(&tmp->device.kobj,
- &i2o_dev->device.kobj, "parent");
+ up(&c->lct_lock);
return 0;
-};
-
-/* I2O device class interface */
-static struct class_interface i2o_device_class_interface = {
- .class = &i2o_device_class,
- .add = i2o_device_class_add
-};
+}
/*
* Run time support routines
* Note that the minimum sized reslist is 8 bytes and contains
* ResultCount, ErrorInfoSize, BlockStatus and BlockSize.
*/
-
int i2o_parm_issue(struct i2o_device *i2o_dev, int cmd, void *oplist,
int oplen, void *reslist, int reslen)
{
- struct i2o_message __iomem *msg;
- u32 m;
- u32 *res32 = (u32 *) reslist;
- u32 *restmp = (u32 *) reslist;
- int len = 0;
+ struct i2o_message *msg;
int i = 0;
int rc;
struct i2o_dma res;
if (i2o_dma_alloc(dev, &res, reslen, GFP_KERNEL))
return -ENOMEM;
- m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
- if (m == I2O_QUEUE_EMPTY) {
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg)) {
i2o_dma_free(dev, &res);
- return -ETIMEDOUT;
+ return PTR_ERR(msg);
}
i = 0;
- writel(cmd << 24 | HOST_TID << 12 | i2o_dev->lct_data.tid,
- &msg->u.head[1]);
- writel(0, &msg->body[i++]);
- writel(0x4C000000 | oplen, &msg->body[i++]); /* OperationList */
- memcpy_toio(&msg->body[i], oplist, oplen);
+ msg->u.head[1] =
+ cpu_to_le32(cmd << 24 | HOST_TID << 12 | i2o_dev->lct_data.tid);
+ msg->body[i++] = cpu_to_le32(0x00000000);
+ msg->body[i++] = cpu_to_le32(0x4C000000 | oplen); /* OperationList */
+ memcpy(&msg->body[i], oplist, oplen);
i += (oplen / 4 + (oplen % 4 ? 1 : 0));
- writel(0xD0000000 | res.len, &msg->body[i++]); /* ResultList */
- writel(res.phys, &msg->body[i++]);
+ msg->body[i++] = cpu_to_le32(0xD0000000 | res.len); /* ResultList */
+ msg->body[i++] = cpu_to_le32(res.phys);
- writel(I2O_MESSAGE_SIZE(i + sizeof(struct i2o_message) / 4) |
- SGL_OFFSET_5, &msg->u.head[0]);
+ msg->u.head[0] =
+ cpu_to_le32(I2O_MESSAGE_SIZE(i + sizeof(struct i2o_message) / 4) |
+ SGL_OFFSET_5);
- rc = i2o_msg_post_wait_mem(c, m, 10, &res);
+ rc = i2o_msg_post_wait_mem(c, msg, 10, &res);
/* This only looks like a memory leak - don't "fix" it. */
if (rc == -ETIMEDOUT)
return rc;
- memcpy_fromio(reslist, res.virt, res.len);
+ memcpy(reslist, res.virt, res.len);
i2o_dma_free(dev, &res);
- /* Query failed */
- if (rc)
- return rc;
- /*
- * Calculate number of bytes of Result LIST
- * We need to loop through each Result BLOCK and grab the length
- */
- restmp = res32 + 1;
- len = 1;
- for (i = 0; i < (res32[0] & 0X0000FFFF); i++) {
- if (restmp[0] & 0x00FF0000) { /* BlockStatus != SUCCESS */
- printk(KERN_WARNING
- "%s - Error:\n ErrorInfoSize = 0x%02x, "
- "BlockStatus = 0x%02x, BlockSize = 0x%04x\n",
- (cmd ==
- I2O_CMD_UTIL_PARAMS_SET) ? "PARAMS_SET" :
- "PARAMS_GET", res32[1] >> 24,
- (res32[1] >> 16) & 0xFF, res32[1] & 0xFFFF);
-
- /*
- * If this is the only request,than we return an error
- */
- if ((res32[0] & 0x0000FFFF) == 1) {
- return -((res32[1] >> 16) & 0xFF); /* -BlockStatus */
- }
- }
- len += restmp[0] & 0x0000FFFF; /* Length of res BLOCK */
- restmp += restmp[0] & 0x0000FFFF; /* Skip to next BLOCK */
- }
- return (len << 2); /* bytes used by result list */
+ return rc;
}
/*
int i2o_parm_field_get(struct i2o_device *i2o_dev, int group, int field,
void *buf, int buflen)
{
- u16 opblk[] = { 1, 0, I2O_PARAMS_FIELD_GET, group, 1, field };
- u8 resblk[8 + buflen]; /* 8 bytes for header */
- int size;
+ u32 opblk[] = { cpu_to_le32(0x00000001),
+ cpu_to_le32((u16) group << 16 | I2O_PARAMS_FIELD_GET),
+ cpu_to_le32((s16) field << 16 | 0x00000001)
+ };
+ u8 *resblk; /* 8 bytes for header */
+ int rc;
- if (field == -1) /* whole group */
- opblk[4] = -1;
+ resblk = kmalloc(buflen + 8, GFP_KERNEL | GFP_ATOMIC);
+ if (!resblk)
+ return -ENOMEM;
- size = i2o_parm_issue(i2o_dev, I2O_CMD_UTIL_PARAMS_GET, opblk,
- sizeof(opblk), resblk, sizeof(resblk));
+ rc = i2o_parm_issue(i2o_dev, I2O_CMD_UTIL_PARAMS_GET, opblk,
+ sizeof(opblk), resblk, buflen + 8);
memcpy(buf, resblk + 8, buflen); /* cut off header */
- if (size > buflen)
- return buflen;
+ kfree(resblk);
- return size;
+ return rc;
}
/*
- * if oper == I2O_PARAMS_TABLE_GET, get from all rows
- * if fieldcount == -1 return all fields
+ * if oper == I2O_PARAMS_TABLE_GET, get from all rows
+ * if fieldcount == -1 return all fields
* ibuf and ibuflen are unused (use NULL, 0)
- * else return specific fields
- * ibuf contains fieldindexes
+ * else return specific fields
+ * ibuf contains fieldindexes
*
- * if oper == I2O_PARAMS_LIST_GET, get from specific rows
- * if fieldcount == -1 return all fields
+ * if oper == I2O_PARAMS_LIST_GET, get from specific rows
+ * if fieldcount == -1 return all fields
* ibuf contains rowcount, keyvalues
- * else return specific fields
+ * else return specific fields
* fieldcount is # of fieldindexes
- * ibuf contains fieldindexes, rowcount, keyvalues
+ * ibuf contains fieldindexes, rowcount, keyvalues
*
* You could also use directly function i2o_issue_params().
*/
return size;
}
-/**
- * i2o_device_init - Initialize I2O devices
- *
- * Registers the I2O device class.
- *
- * Returns 0 on success or negative error code on failure.
- */
-int i2o_device_init(void)
-{
- int rc;
-
- rc = class_register(&i2o_device_class);
- if (rc)
- return rc;
-
- return class_interface_register(&i2o_device_class_interface);
-};
-
-/**
- * i2o_device_exit - I2O devices exit function
- *
- * Unregisters the I2O device class.
- */
-void i2o_device_exit(void)
-{
- class_interface_register(&i2o_device_class_interface);
- class_unregister(&i2o_device_class);
-};
-
EXPORT_SYMBOL(i2o_device_claim);
EXPORT_SYMBOL(i2o_device_claim_release);
EXPORT_SYMBOL(i2o_parm_field_get);
git://git.onelab.eu / linux-2.6.git / blobdiff