#include <linux/obd_support.h>
#include <linux/obd_class.h>
+static int obd_init_magic;
int obd_print_entry = 1;
int obd_debug_level = 4095;
struct obd_device obd_dev[MAX_OBD_DEVICES];
if (dev >= MAX_OBD_DEVICES)
return -ENODEV;
obd_dev[dev].obd_refcnt++;
- CDEBUG(D_PSDEV, "Refcount now %d\n", obd_dev[dev].obd_refcnt++);
+ CDEBUG(D_PSDEV, "Dev %d refcount now %d\n", dev,
+ obd_dev[dev].obd_refcnt);
MOD_INC_USE_COUNT;
EXIT;
return -ENODEV;
fsync_dev(inode->i_rdev);
if (obd_dev[dev].obd_refcnt <= 0)
- printk(KERN_ALERT "presto_psdev_release: refcount(%d) <= 0\n",
+ printk(KERN_ALERT "obd_class_release: refcount(%d) <= 0\n",
obd_dev[dev].obd_refcnt);
obd_dev[dev].obd_refcnt--;
- CDEBUG(D_PSDEV, "Refcount now %d\n", obd_dev[dev].obd_refcnt++);
-
+ CDEBUG(D_PSDEV, "Dev %d refcount now %d\n", dev,
+ obd_dev[dev].obd_refcnt);
MOD_DEC_USE_COUNT;
EXIT;
{
struct list_head *tmp;
struct obd_type *type;
+ CDEBUG(D_IOCTL, "SEARCH %s\n", nm);
tmp = &obd_types;
while ( (tmp = tmp->next) != &obd_types ) {
type = list_entry(tmp, struct obd_type, typ_chain);
+ CDEBUG(D_IOCTL, "TYP %s\n", type->typ_name);
if (strlen(type->typ_name) == strlen(nm) &&
strcmp(type->typ_name, nm) == 0 ) {
return type;
return NULL;
}
+
+static int getdata(int len, void **data)
+{
+ void *tmp = NULL;
+
+ if (!len)
+ return 0;
+
+ CDEBUG(D_IOCTL, "getdata: len %d, add %p\n", len, *data);
+
+ OBD_ALLOC(tmp, void *, len);
+ if ( !tmp )
+ return -ENOMEM;
+
+ memset(tmp, 0, len);
+ if ( copy_from_user(tmp, *data, len)) {
+ OBD_FREE(tmp,len);
+ return -EFAULT;
+ }
+ *data = tmp;
+
+ return 0;
+}
+
/* to control /dev/obdNNN */
static int obd_class_ioctl (struct inode * inode, struct file * filp,
unsigned int cmd, unsigned long arg)
{
- int err, i_ino, dev;
struct obd_device *obddev;
- struct oic_rw_s rw_s; /* read, write */
+ /* NOTE this must be larger than any of the ioctl data structs */
+ char buff[1024];
+ void *karg = buff;
+ struct obd_conn conn;
+ int err, dev;
long int cli_id; /* connect, disconnect */
- struct oic_prealloc_s prealloc; /* preallocate */
if (!inode)
return -EINVAL;
+
dev = MINOR(inode->i_rdev);
if (dev > MAX_OBD_DEVICES)
return -ENODEV;
-
obddev = &obd_dev[dev];
-
- /* has this minor been registered? */
- if (cmd != OBD_IOC_SETUP_OBDDEV && !obd_dev[dev].obd_type)
- return -ENODEV;
+ conn.oc_dev = obddev;
switch (cmd) {
- case OBD_IOC_SETUP_OBDDEV: {
+ case TCGETS:
+ return -EINVAL;
+ case OBD_IOC_ATTACH: {
struct obd_type *type;
-
- struct setup {
- int setup_data;
- char setup_type[24];
- } input;
-
- if ( obddev->obd_type ) {
- CDEBUG(D_IOCTL, "Device %d already setup (type %s)\n",
+ struct oic_generic *input = karg;
+
+ ENTRY;
+ /* have we attached a type to this device */
+ if ( obddev->obd_type ||
+ (obddev->obd_flags & OBD_ATTACHED) ){
+ CDEBUG(D_IOCTL,
+ "OBD Device %d already attached to type %s.\n",
dev, obddev->obd_type->typ_name);
- return -1;
+ EXIT;
+ return -EBUSY;
}
/* get data structures */
- err= copy_from_user(&input, (void *) arg, sizeof(input));
- if (err)
+ err = copy_from_user(input, (void *)arg, sizeof(*input));
+ if ( err ) {
+ EXIT;
return err;
+ }
- type = obd_nm_to_type(input.setup_type);
+ err = getdata(input->att_typelen + 1, &input->att_type);
+ if ( err ) {
+ EXIT;
+ return err;
+ }
+
+ /* find the type */
+ type = obd_nm_to_type(input->att_type);
+ OBD_FREE(input->att_type, input->att_typelen + 1);
if ( !type ) {
- printk("Trying to register non existent type %s\n",
- input.setup_type);
- return -1;
+ printk("Unknown obd type dev %d\n", dev);
+ EXIT;
+ return -EINVAL;
}
obddev->obd_type = type;
+
+ /* get the attach data */
+ err = getdata(input->att_datalen, &input->att_data);
+ if ( err ) {
+ EXIT;
+ return err;
+ }
+
+ INIT_LIST_HEAD(&obddev->obd_gen_clients);
+ obddev->obd_multi_count = 0;
+
+ CDEBUG(D_IOCTL, "Attach %d, datalen %d, type %s\n",
+ dev, input->att_datalen, obddev->obd_type->typ_name);
+ /* maybe we are done */
+ if ( !OBT(obddev) || !OBP(obddev, attach) ) {
+ obddev->obd_flags |= OBD_ATTACHED;
+ type->typ_refcnt++;
+ CDEBUG(D_IOCTL, "Dev %d refcount now %d\n", dev,
+ type->typ_refcnt);
+ MOD_INC_USE_COUNT;
+ EXIT;
+ return 0;
+ }
- CDEBUG(D_IOCTL, "Setup %d, type %s\n", dev, input.setup_type);
- if ( obddev->obd_type->typ_ops->o_setup(obddev,
- &input.setup_data)){
+ /* do the attach */
+ err = OBP(obddev, attach)(obddev, input->att_datalen,
+ input->att_data);
+ OBD_FREE(input->att_data, input->att_datalen);
+
+ if ( err ) {
+ obddev->obd_flags &= ~OBD_ATTACHED;
obddev->obd_type = NULL;
- return -1;
+ EXIT;
} else {
+ obddev->obd_flags |= OBD_ATTACHED;
type->typ_refcnt++;
+ CDEBUG(D_IOCTL, "Dev %d refcount now %d\n", dev,
+ type->typ_refcnt);
MOD_INC_USE_COUNT;
+ EXIT;
+ }
+ return err;
+ }
+
+ case OBD_IOC_DETACH: {
+
+ ENTRY;
+ if (obddev->obd_flags & OBD_SET_UP) {
+ EXIT;
+ return -EBUSY;
+ }
+ if (! (obddev->obd_flags & OBD_ATTACHED) ) {
+ CDEBUG(D_IOCTL, "Device not attached\n");
+ EXIT;
+ return -ENODEV;
+ }
+ if ( !list_empty(&obddev->obd_gen_clients) ) {
+ CDEBUG(D_IOCTL, "Device has connected clients\n");
+ EXIT;
+ return -EBUSY;
+ }
+
+ CDEBUG(D_IOCTL, "Detach %d, type %s\n", dev,
+ obddev->obd_type->typ_name);
+ obddev->obd_flags &= ~OBD_ATTACHED;
+ obddev->obd_type->typ_refcnt--;
+ CDEBUG(D_IOCTL, "Dev %d refcount now %d\n", dev,
+ obddev->obd_type->typ_refcnt);
+ obddev->obd_type = NULL;
+ MOD_DEC_USE_COUNT;
+ EXIT;
+ return 0;
+ }
+
+ case OBD_IOC_SETUP: {
+ struct ioc_setup {
+ int setup_datalen;
+ void *setup_data;
+ } *setup;
+ setup = karg;
+
+ ENTRY;
+ /* have we attached a type to this device */
+ if (!(obddev->obd_flags & OBD_ATTACHED)) {
+ CDEBUG(D_IOCTL, "Device not attached\n");
+ EXIT;
+ return -ENODEV;
+ }
+
+ /* has this been done already? */
+ if ( obddev->obd_flags & OBD_SET_UP ) {
+ CDEBUG(D_IOCTL, "Device %d already setup (type %s)\n",
+ dev, obddev->obd_type->typ_name);
+ EXIT;
+ return -EBUSY;
+ }
+
+ /* get main structure */
+ err = copy_from_user(setup, (void *) arg, sizeof(*setup));
+ if (err) {
+ EXIT;
+ return err;
+ }
+
+ err = getdata(setup->setup_datalen, &setup->setup_data);
+ if (err) {
+ EXIT;
+ return err;
+ }
+
+ /* do the setup */
+ CDEBUG(D_IOCTL, "Setup %d, type %s\n", dev,
+ obddev->obd_type->typ_name);
+ if ( !OBT(obddev) || !OBP(obddev, setup) ) {
+ obddev->obd_type->typ_refcnt++;
+ CDEBUG(D_IOCTL, "Dev %d refcount now %d\n",
+ dev, obddev->obd_type->typ_refcnt);
+ obddev->obd_flags |= OBD_SET_UP;
+ EXIT;
return 0;
}
+
+ err = OBP(obddev, setup)(obddev, setup->setup_datalen,
+ setup->setup_data);
+
+ if ( err ) {
+ obddev->obd_flags &= ~OBD_SET_UP;
+ EXIT;
+ } else {
+ obddev->obd_type->typ_refcnt++;
+ CDEBUG(D_IOCTL, "Dev %d refcount now %d\n",
+ dev, obddev->obd_type->typ_refcnt);
+ obddev->obd_flags |= OBD_SET_UP;
+ EXIT;
+ }
+ return err;
}
- case OBD_IOC_CLEANUP_OBDDEV: {
- int rc;
+ case OBD_IOC_CLEANUP: {
+ ENTRY;
+ /* has this minor been registered? */
+ if (!obddev->obd_type) {
+ CDEBUG(D_IOCTL, "OBD Device %d has no type.\n", dev);
+ EXIT;
+ return -ENODEV;
+ }
- if ( !obddev->obd_type->typ_refcnt )
- printk("OBD_CLEANUP: refcount wrap!\n");
+ if ( !obddev->obd_type->typ_refcnt ) {
+ printk("OBD_CLEANUP: Dev %d has refcount (%d)!\n",
+ dev, obddev->obd_type->typ_refcnt);
+ EXIT;
+ return -EBUSY;
+ }
+
+ if ( (!(obddev->obd_flags & OBD_SET_UP)) ||
+ (!(obddev->obd_flags & OBD_ATTACHED))) {
+ CDEBUG(D_IOCTL, "Device not attached or set up\n");
+ EXIT;
+ return -ENODEV;
+ }
- if ( !obddev->obd_type->typ_ops->o_cleanup )
- goto out;
+ if ( !OBT(obddev) || !OBP(obddev, cleanup) )
+ goto cleanup_out;
/* cleanup has no argument */
- rc = obddev->obd_type->typ_ops->o_cleanup(obddev);
- if ( rc )
- return rc;
+ err = OBP(obddev, cleanup)(obddev);
+ if ( err ) {
+ EXIT;
+ return err;
+ }
- out:
+ cleanup_out:
+ obddev->obd_flags &= ~OBD_SET_UP;
obddev->obd_type->typ_refcnt--;
- obddev->obd_type = NULL;
- MOD_DEC_USE_COUNT;
+ CDEBUG(D_IOCTL, "Dev %d refcount now %d\n", dev,
+ obddev->obd_type->typ_refcnt);
+ EXIT;
return 0;
}
case OBD_IOC_CONNECT:
{
- struct obd_conn_info conninfo;
+ if ( (!(obddev->obd_flags & OBD_SET_UP)) ||
+ (!(obddev->obd_flags & OBD_ATTACHED))) {
+ CDEBUG(D_IOCTL, "Device not attached or set up\n");
+ return -ENODEV;
+ }
- if (obddev->obd_type->typ_ops->o_connect(dev, &conninfo))
- return -EINVAL;
+ if ( !OBT(obddev) || !OBP(obddev, connect) )
+ return -EOPNOTSUPP;
+
+ err = OBP(obddev, connect)(&conn);
+ if ( err )
+ return err;
- return copy_to_user((int *)arg, &conninfo,
- sizeof(struct obd_conn_info));
+ return copy_to_user((int *)arg, &conn.oc_id,
+ sizeof(uint32_t));
}
case OBD_IOC_DISCONNECT:
/* frees data structures */
+ /* has this minor been registered? */
+ if (!obddev->obd_type)
+ return -ENODEV;
+
get_user(cli_id, (int *) arg);
+ conn.oc_id = cli_id;
- obddev->obd_type->typ_ops->o_disconnect(cli_id);
+ if ( !OBT(obddev) || !OBP(obddev, disconnect))
+ return -EOPNOTSUPP;
+
+ OBP(obddev, disconnect)(&conn);
return 0;
- case OBD_IOC_SYNC:
- /* sync doesn't need a connection ID, because it knows
- * what device it was called on, and can thus get the
- * superblock that it needs. */
- if (!obddev->u.sim.sim_sb || !obddev->u.sim.sim_sb->s_dev) {
- CDEBUG(D_IOCTL, "fatal: device not initialized.\n");
- err = -EINVAL;
- } else {
- if ((err = fsync_dev(obddev->u.sim.sim_sb->s_dev)))
- CDEBUG(D_IOCTL, "sync: fsync_dev failure\n");
- else
- CDEBUG(D_IOCTL, "sync: success\n");
+ /* XXX sync needs to be done */
+ case OBD_IOC_SYNC: {
+ struct oic_range_s *range = karg;
+
+ if (!obddev->obd_type)
+ return -ENODEV;
+
+ err = copy_from_user(range, (const void *)arg, sizeof(*range));
+ if (err) {
+ EXIT;
+ return err;
}
return put_user(err, (int *) arg);
- case OBD_IOC_CREATE:
- /* similarly, create doesn't need a connection ID for
- * the same reasons. */
- if (!obddev->u.sim.sim_sb) {
- CDEBUG(D_IOCTL, "fatal: device not initialized.\n");
- return put_user(-EINVAL, (int *) arg);
- }
+ }
+ case OBD_IOC_CREATE: {
+ struct oic_attr_s *attr = karg;
- i_ino = obddev->obd_type->typ_ops->o_create(obddev, 0, &err);
+ err = copy_from_user(attr, (const void *)arg, sizeof(*attr));
if (err) {
- CDEBUG(D_IOCTL, "create: obd_inode_new failure\n");
- /* 0 is the only error value */
- return put_user(0, (int *) arg);
+ EXIT;
+ return err;
}
- return put_user(i_ino, (int *) arg);
- case OBD_IOC_DESTROY:
- {
- struct destroy_s {
- unsigned int conn_id;
- unsigned int ino;
- } destroy;
- copy_from_user(&destroy, (int *)arg, sizeof(struct destroy_s));
- if ( !obddev->obd_type ||
- !obddev->obd_type->typ_ops->o_destroy)
- return -EINVAL;
+ /* has this minor been registered? */
+ if ( !(obddev->obd_flags & OBD_ATTACHED) ||
+ !(obddev->obd_flags & OBD_SET_UP)) {
+ CDEBUG(D_IOCTL, "Device not attached or set up\n");
+ return -ENODEV;
+ }
+ conn.oc_id = attr->conn_id;
+
+ if ( !OBT(obddev) || !OBP(obddev, create) )
+ return -EOPNOTSUPP;
+
+ err = OBP(obddev, create)(&conn, &attr->obdo);
+ if (err) {
+ EXIT;
+ return err;
+ }
- return obddev->obd_type->typ_ops->o_destroy(destroy.conn_id, destroy.ino);
+ err = copy_to_user((int *)arg, attr, sizeof(*attr));
+ EXIT;
+ return err;
}
- case OBD_IOC_SETATTR:
- {
- int err;
- struct tmp {
- unsigned int conn_id;
- unsigned long ino;
- struct iattr iattr;
- } foo;
- err= copy_from_user(&foo, (int *)arg, sizeof(struct tmp));
- if (err)
+ case OBD_IOC_DESTROY: {
+ struct oic_attr_s *attr = karg;
+
+ /* has this minor been registered? */
+ if (!obddev->obd_type)
+ return -ENODEV;
+
+ err = copy_from_user(attr, (int *)arg, sizeof(*attr));
+ if ( err ) {
+ EXIT;
return err;
+ }
- if ( !obddev->obd_type ||
- !obddev->obd_type->typ_ops->o_setattr)
- return -EINVAL;
+ if ( !OBT(obddev) || !OBP(obddev, destroy) )
+ return -EOPNOTSUPP;
- return obddev->obd_type->typ_ops->o_setattr(foo.conn_id, foo.ino, &foo.iattr);
+ conn.oc_id = attr->conn_id;
+ err = OBP(obddev, destroy)(&conn, &attr->obdo);
+ EXIT;
+ return err;
}
- case OBD_IOC_GETATTR:
- {
- int err;
- struct tmp {
- unsigned int conn_id;
- unsigned long ino;
- } foo;
- struct iattr iattr;
- copy_from_user(&foo, (int *)arg, sizeof(struct tmp));
-
- if ( !obddev->obd_type ||
- !obddev->obd_type->typ_ops->o_getattr)
- return -EINVAL;
+ case OBD_IOC_SETATTR: {
+ struct oic_attr_s *attr = karg;
- if (obddev->obd_type->typ_ops->o_getattr(foo.conn_id,
- foo.ino, &iattr))
- return -EINVAL;
+ /* has this minor been registered? */
+ if (!obddev->obd_type)
+ return -ENODEV;
- err = copy_to_user((int *)arg, &iattr, sizeof(iattr));
+ err = copy_from_user(attr, (int *)arg, sizeof(*attr));
+ if (err)
+ return err;
+
+ if ( !OBT(obddev) || !OBP(obddev, setattr) )
+ return -EOPNOTSUPP;
+
+ conn.oc_id = attr->conn_id;
+ err = OBP(obddev, setattr)(&conn, &attr->obdo);
+ EXIT;
return err;
}
- case OBD_IOC_READ2:
- {
- int err;
+ case OBD_IOC_GETATTR: {
+ struct oic_attr_s *attr = karg;
- err = copy_from_user(&rw_s, (int *)arg, sizeof(struct oic_rw_s));
- if ( err )
+ err = copy_from_user(attr, (int *)arg, sizeof(*attr));
+ if (err)
return err;
- if ( !obddev->obd_type->typ_ops ||
- !obddev->obd_type->typ_ops->o_read )
- return -EINVAL;
-
- rw_s.count = obddev->obd_type->typ_ops->o_read2(rw_s.conn_id,
- rw_s.inode,
- rw_s.buf,
- rw_s.count,
- rw_s.offset,
- &err);
- if ( err )
+ conn.oc_id = attr->conn_id;
+ err = OBP(obddev, getattr)(&conn, &attr->obdo);
+ if ( err ) {
+ EXIT;
return err;
+ }
- err = copy_to_user((int*)arg, &rw_s.count,
- sizeof(unsigned long));
+ err = copy_to_user((int *)arg, attr, sizeof(*attr));
+ EXIT;
return err;
}
-
- case OBD_IOC_READ:
- {
+ case OBD_IOC_READ: {
int err;
+ struct oic_rw_s *rw_s = karg; /* read, write ioctl str */
- err = copy_from_user(&rw_s, (int *)arg, sizeof(struct oic_rw_s));
- if ( err )
+ err = copy_from_user(rw_s, (int *)arg, sizeof(*rw_s));
+ if ( err ) {
+ EXIT;
return err;
+ }
- if ( !obddev->obd_type->typ_ops ||
- !obddev->obd_type->typ_ops->o_read )
- return -EINVAL;
+ conn.oc_id = rw_s->conn_id;
- rw_s.count = obddev->obd_type->typ_ops->o_read(rw_s.conn_id,
- rw_s.inode,
- rw_s.buf,
- rw_s.count,
- rw_s.offset,
- &err);
- if ( err )
+ if ( !OBT(obddev) || !OBP(obddev, read) ) {
+ err = -EOPNOTSUPP;
+ EXIT;
return err;
+ }
- err = copy_to_user((int*)arg, &rw_s.count,
- sizeof(unsigned long));
+ err = OBP(obddev, read)(&conn, &rw_s->obdo, rw_s->buf,
+ &rw_s->count, rw_s->offset);
+ if ( err ) {
+ EXIT;
+ return err;
+ }
+
+ err = copy_to_user((int*)arg, &rw_s->count, sizeof(rw_s->count));
+ EXIT;
return err;
}
- case OBD_IOC_WRITE:
- {
- int err;
+ case OBD_IOC_WRITE: {
+ struct oic_rw_s *rw_s = karg; /* read, write ioctl str */
- copy_from_user(&rw_s, (int *)arg, sizeof(struct oic_rw_s));
- CDEBUG(D_IOCTL, "\n");
- if ( !obddev->obd_type->typ_ops->o_write )
- return -EINVAL;
- rw_s.count =
- obddev->obd_type->typ_ops->o_write(rw_s.conn_id,
- rw_s.inode,
- rw_s.buf,
- rw_s.count,
- rw_s.offset,
- &err);
-
- printk("Result rw_s.count %ld\n", rw_s.count);
- return (int)rw_s.count;
- copy_to_user((int *)arg, &rw_s.count,
- sizeof(unsigned long));
+ err = copy_from_user(rw_s, (int *)arg, sizeof(*rw_s));
+ if ( err ) {
+ EXIT;
+ return err;
+ }
+
+ conn.oc_id = rw_s->conn_id;
+
+ if ( !OBT(obddev) || !OBP(obddev, write) ) {
+ err = -EOPNOTSUPP;
+ return err;
+ }
+
+ err = OBP(obddev, write)(&conn, &rw_s->obdo, rw_s->buf,
+ &rw_s->count, rw_s->offset);
+ if ( err ) {
+ EXIT;
+ return err;
+ }
+
+ err = copy_to_user((int*)arg, &rw_s->count, sizeof(rw_s->count));
+ EXIT;
return err;
}
- case OBD_IOC_PREALLOCATE:
- copy_from_user(&prealloc, (int *)arg,
- sizeof(struct oic_prealloc_s));
+ case OBD_IOC_PREALLOCATE: {
+ struct oic_prealloc_s *prealloc = karg;
- if (!obddev->u.sim.sim_sb || !obddev->u.sim.sim_sb->s_dev) {
- CDEBUG(D_IOCTL, "fatal: device not initialized.\n");
- return -EINVAL;
+ /* has this minor been registered? */
+ if (!obddev->obd_type)
+ return -ENODEV;
+
+ err = copy_from_user(prealloc, (int *)arg, sizeof(*prealloc));
+ if (err)
+ return -EFAULT;
+
+ if ( !(obddev->obd_flags & OBD_ATTACHED) ||
+ !(obddev->obd_flags & OBD_SET_UP)) {
+ CDEBUG(D_IOCTL, "Device not attached or set up\n");
+ return -ENODEV;
}
- if (!obddev->obd_type ||
- !obddev->obd_type->typ_ops->o_preallocate)
- return -EINVAL;
+ if ( !OBT(obddev) || !OBP(obddev, preallocate) )
+ return -EOPNOTSUPP;
- prealloc.alloc =
- obddev->obd_type->typ_ops->o_preallocate(prealloc.cli_id, prealloc.alloc,
- prealloc.inodes, &err);
- if ( err )
+ conn.oc_id = prealloc->cli_id;
+ err = OBP(obddev, preallocate)(&conn, &prealloc->alloc,
+ prealloc->ids);
+ if ( err ) {
+ EXIT;
return err;
- return copy_to_user((int *)arg, &prealloc,
- sizeof(struct oic_prealloc_s));
- case OBD_IOC_STATFS:
- {
+ }
+
+ err =copy_to_user((int *)arg, prealloc, sizeof(*prealloc));
+ EXIT;
+ return err;
+ }
+ case OBD_IOC_STATFS: {
struct statfs *tmp;
unsigned int conn_id;
struct statfs buf;
- int rc;
+
+ /* has this minor been registered? */
+ if (!obddev->obd_type)
+ return -ENODEV;
tmp = (void *)arg + sizeof(unsigned int);
get_user(conn_id, (int *) arg);
- if ( !obddev->obd_type ||
- !obddev->obd_type->typ_ops->o_statfs)
- return -EINVAL;
- rc = obddev->obd_type->typ_ops->o_statfs(conn_id, &buf);
- if ( rc )
- return rc;
- rc = copy_to_user(tmp, &buf, sizeof(buf));
- return rc;
+ if ( !OBT(obddev) || !OBP(obddev, statfs) )
+ return -EOPNOTSUPP;
+
+ conn.oc_id = conn_id;
+ err = OBP(obddev, statfs)(&conn, &buf);
+ if ( err ) {
+ EXIT;
+ return err;
+ }
+ err = copy_to_user(tmp, &buf, sizeof(buf));
+ EXIT;
+ return err;
}
- default:
- printk("invalid ioctl: cmd = %u, arg = %lu\n", cmd, arg);
- return -ENOTTY;
+ case OBD_IOC_COPY: {
+ struct ioc_mv_s *mvdata = karg;
+
+ if ( (!(obddev->obd_flags & OBD_SET_UP)) ||
+ (!(obddev->obd_flags & OBD_ATTACHED))) {
+ CDEBUG(D_IOCTL, "Device not attached or set up\n");
+ return -ENODEV;
+ }
+
+ /* get main structure */
+ err = copy_from_user(mvdata, (void *) arg, sizeof(*mvdata));
+ if (err) {
+ EXIT;
+ return err;
+ }
+
+ if ( !OBT(obddev) || !OBP(obddev, copy) )
+ return -EOPNOTSUPP;
+
+ /* do the partition */
+ CDEBUG(D_IOCTL, "Copy %d, type %s dst %Ld src %Ld\n", dev,
+ obddev->obd_type->typ_name, mvdata->dst.o_id,
+ mvdata->src.o_id);
+
+ conn.oc_id = mvdata->src_conn_id;
+
+ err = OBP(obddev, copy)(&conn, &mvdata->dst,
+ &conn, &mvdata->src,
+ mvdata->src.o_size, 0);
+ return err;
+ }
+
+ case OBD_IOC_MIGR: {
+ struct ioc_mv_s *mvdata = karg;
+
+ if ( (!(obddev->obd_flags & OBD_SET_UP)) ||
+ (!(obddev->obd_flags & OBD_ATTACHED))) {
+ CDEBUG(D_IOCTL, "Device not attached or set up\n");
+ return -ENODEV;
+ }
+
+ err = copy_from_user(mvdata, (void *) arg, sizeof(*mvdata));
+ if (err) {
+ EXIT;
+ return err;
+ }
+
+ CDEBUG(D_IOCTL, "Migrate copying %d\n", sizeof(*mvdata));
+
+ if ( !OBT(obddev) || !OBP(obddev, migrate) )
+ return -EOPNOTSUPP;
+
+ /* do the partition */
+ CDEBUG(D_IOCTL, "Migrate %d, type %s conn %d src %Ld dst %Ld\n",
+ dev, obddev->obd_type->typ_name, mvdata->src_conn_id,
+ mvdata->src.o_id, mvdata->dst.o_id);
+
+ conn.oc_id = mvdata->src_conn_id;
+ err = OBP(obddev, migrate)(&conn, &mvdata->dst, &mvdata->src,
+ mvdata->dst.o_size, 0);
+
+ return err;
+ }
+
+ default: {
+ struct obd_type *type;
+ struct oic_generic input;
+ void *karg;
+
+ /* get data structures */
+ err = copy_from_user(&input, (void *)arg, sizeof(input));
+ if ( err ) {
+ EXIT;
+ return err;
+ }
+
+ err = getdata(input.att_typelen + 1, &input.att_type);
+ if ( err ) {
+ EXIT;
+ return err;
+ }
+
+ /* find the type */
+ type = obd_nm_to_type(input.att_type);
+ OBD_FREE(input.att_type, input.att_typelen + 1);
+ if ( !type ) {
+ printk("Unknown obd type dev %d\n", dev);
+ EXIT;
+ return -EINVAL;
+ }
+
+ if ( !type->typ_ops || !type->typ_ops->o_iocontrol ) {
+ EXIT;
+ return -EOPNOTSUPP;
+ }
+ conn.oc_id = input.att_connid;
+
+ CDEBUG(D_IOCTL, "Calling ioctl %x for type %s, len %d\n",
+ cmd, type->typ_name, input.att_datalen);
+
+ /* get the generic data */
+ karg = input.att_data;
+ err = getdata(input.att_datalen, karg);
+ if ( err ) {
+ EXIT;
+ return err;
+ }
+
+ err = type->typ_ops->o_iocontrol(cmd, &conn, input.att_datalen,
+ karg, input.att_data);
+ OBD_FREE(karg, input.att_datalen);
+
+ EXIT;
+ return err;
+ }
}
}
{
struct obd_type *type;
+
+ if (obd_init_magic != 0x11223344) {
+ EXIT;
+ return -EINVAL;
+ }
+
if ( obd_nm_to_type(nm) ) {
CDEBUG(D_IOCTL, "Type %s already registered\n", nm);
- return -1;
+ EXIT;
+ return -EEXIST;
}
-
+
OBD_ALLOC(type, struct obd_type * , sizeof(*type));
- if ( !type )
+ if ( !type ) {
+ EXIT;
return -ENOMEM;
+ }
memset(type, 0, sizeof(*type));
INIT_LIST_HEAD(&type->typ_chain);
-
+ MOD_INC_USE_COUNT;
list_add(&type->typ_chain, obd_types.next);
type->typ_ops = ops;
type->typ_name = nm;
+ EXIT;
return 0;
}
{
struct obd_type *type = obd_nm_to_type(nm);
- if ( !type )
- return -1;
+ if ( !type ) {
+ MOD_DEC_USE_COUNT;
+ printk("Unknown obd type\n");
+ EXIT;
+ return -EINVAL;
+ }
- if ( type->typ_refcnt )
- return -1;
+ if ( type->typ_refcnt ) {
+ MOD_DEC_USE_COUNT;
+ printk("OBD: Type %s has refcount (%d)\n", nm,
+ type->typ_refcnt);
+ EXIT;
+ return -EBUSY;
+ }
list_del(&type->typ_chain);
OBD_FREE(type, sizeof(*type));
+ MOD_DEC_USE_COUNT;
return 0;
}
{
int i;
- printk(KERN_INFO "OBD class driver v0.002, braam@stelias.com\n");
-
+ printk(KERN_INFO "OBD class driver v0.01, braam@stelias.com\n");
+
INIT_LIST_HEAD(&obd_types);
-
+
if (register_chrdev(OBD_PSDEV_MAJOR,"obd_psdev",
&obd_psdev_fops)) {
printk(KERN_ERR "obd_psdev: unable to get major %d\n",
for (i = 0; i < MAX_OBD_DEVICES; i++) {
memset(&(obd_dev[i]), 0, sizeof(obd_dev[i]));
- INIT_LIST_HEAD(&obd_dev[i].u.sim.sim_clients);
+ obd_dev[i].obd_minor = i;
+ INIT_LIST_HEAD(&obd_dev[i].obd_gen_clients);
}
+ obd_init_obdo_cache();
obd_sysctl_init();
-
+ obd_init_magic = 0x11223344;
return 0;
}
EXPORT_SYMBOL(obd_debug_level);
EXPORT_SYMBOL(obd_dev);
+EXPORT_SYMBOL(gen_connect);
+EXPORT_SYMBOL(gen_client);
+EXPORT_SYMBOL(gen_cleanup);
+EXPORT_SYMBOL(gen_disconnect);
+EXPORT_SYMBOL(gen_copy_data);
+EXPORT_SYMBOL(obdo_cachep);
+
+/* EXPORT_SYMBOL(gen_multi_attach); */
+EXPORT_SYMBOL(gen_multi_setup);
+EXPORT_SYMBOL(gen_multi_cleanup);
+
+
#ifdef MODULE
int init_module(void)
{
for (i = 0; i < MAX_OBD_DEVICES; i++) {
struct obd_device *obddev = &obd_dev[i];
if ( obddev->obd_type &&
- obddev->obd_type->typ_ops->o_cleanup_device )
- return obddev->obd_type->typ_ops->o_cleanup_device(i);
+ (obddev->obd_flags & OBD_SET_UP) &&
+ OBT(obddev) && OBP(obddev, detach) ) {
+ /* XXX should this call generic detach otherwise? */
+ OBP(obddev, detach)(obddev);
+ }
}
+
obd_sysctl_clean();
+ obd_init_magic = 0;
}
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff