+ /* do the setup */
+ CDEBUG(D_PSDEV, "Setup %d, type %s\n", dev,
+ obddev->obd_type->typ_name);
+ if ( !OBT(obddev) || !OBP(obddev, setup) ) {
+ obddev->obd_type->typ_refcnt++;
+ CDEBUG(D_PSDEV, "Dev %d refcount now %d\n",
+ dev, obddev->obd_type->typ_refcnt);
+ if (setup->setup_data)
+ OBD_FREE(setup->setup_data,
+ setup->setup_datalen);
+ obddev->obd_flags |= OBD_SET_UP;
+ EXIT;
+ return 0;
+ }
+
+ err = OBP(obddev, setup)(obddev, 0, NULL);
+
+ if ( err ) {
+ obddev->obd_flags &= ~OBD_SET_UP;
+ EXIT;
+ } else {
+ obddev->obd_type->typ_refcnt++;
+ CDEBUG(D_PSDEV, "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: {
+ 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 ) {
+ CDEBUG(D_IOCTL, "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 ( !OBT(obddev) || !OBP(obddev, cleanup) )
+ goto cleanup_out;
+
+ /* cleanup has no argument */
+ err = OBP(obddev, cleanup)(obddev);
+ if ( err ) {
+ EXIT;
+ return err;
+ }
+
+ cleanup_out:
+ obddev->obd_flags &= ~OBD_SET_UP;
+ obddev->obd_type->typ_refcnt--;
+ CDEBUG(D_PSDEV, "Dev %d refcount now %d\n", dev,
+ obddev->obd_type->typ_refcnt);
+ EXIT;
+ return 0;
+ }
+ case OBD_IOC_CONNECT:
+ {
+ 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 ( !OBT(obddev) || !OBP(obddev, connect) )
+ return -EOPNOTSUPP;
+
+ err = OBP(obddev, connect)(&conn);
+ if ( err )
+ return err;
+
+ 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;
+
+ if ( !OBT(obddev) || !OBP(obddev, disconnect))
+ return -EOPNOTSUPP;
+
+ OBP(obddev, disconnect)(&conn);
+ return 0;
+
+ case OBD_IOC_SYNC: {
+ struct oic_range_s *range = tmp_buf;
+
+ if (!obddev->obd_type)
+ return -ENODEV;
+
+ err = copy_from_user(range, (const void *)arg, sizeof(*range));
+
+ if ( err ) {
+ EXIT;
+ return err;
+ }
+
+ if ( !OBT(obddev) || !OBP(obddev, sync) ) {
+ err = -EOPNOTSUPP;
+ EXIT;
+ return err;
+ }
+
+ /* XXX sync needs to be tested/verified */
+ err = OBP(obddev, sync)(&conn, &range->obdo, range->count,
+ range->offset);
+
+ if ( err ) {
+ EXIT;
+ return err;
+ }
+
+ return put_user(err, (int *) arg);
+ }
+ case OBD_IOC_CREATE: {
+ struct oic_attr_s *attr = tmp_buf;
+
+ err = copy_from_user(attr, (const void *)arg, sizeof(*attr));
+ if (err) {
+ EXIT;
+ return err;
+ }
+
+ /* 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;
+ }
+
+ err = copy_to_user((int *)arg, attr, sizeof(*attr));
+ EXIT;
+ return err;
+ }
+
+ case OBD_IOC_DESTROY: {
+ struct oic_attr_s *attr = tmp_buf;
+
+ /* 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 ( !OBT(obddev) || !OBP(obddev, destroy) )
+ return -EOPNOTSUPP;
+
+ conn.oc_id = attr->conn_id;
+ err = OBP(obddev, destroy)(&conn, &attr->obdo);
+ EXIT;
+ return err;
+ }
+
+ case OBD_IOC_SETATTR: {
+ struct oic_attr_s *attr = tmp_buf;
+
+ /* has this minor been registered? */
+ if (!obddev->obd_type)
+ return -ENODEV;
+
+ 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_GETATTR: {
+ struct oic_attr_s *attr = tmp_buf;
+
+ err = copy_from_user(attr, (int *)arg, sizeof(*attr));
+ if (err)
+ return err;
+
+ conn.oc_id = attr->conn_id;
+ ODEBUG(&attr->obdo);
+ err = OBP(obddev, getattr)(&conn, &attr->obdo);
+ if ( err ) {
+ EXIT;
+ return err;
+ }
+
+ err = copy_to_user((int *)arg, attr, sizeof(*attr));
+ EXIT;
+ return err;
+ }
+
+ case OBD_IOC_READ: {
+ int err;
+ struct oic_rw_s *rw_s = tmp_buf; /* read, write ioctl str */
+
+ 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, read) ) {
+ err = -EOPNOTSUPP;
+ EXIT;
+ return err;
+ }
+
+
+ err = OBP(obddev, read)(&conn, &rw_s->obdo, rw_s->buf,
+ &rw_s->count, rw_s->offset);
+
+ ODEBUG(&rw_s->obdo);
+ CDEBUG(D_INFO, "READ: conn %d, count %Ld, offset %Ld, '%s'\n",
+ rw_s->conn_id, rw_s->count, rw_s->offset, rw_s->buf);
+ 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: {
+ struct oic_rw_s *rw_s = tmp_buf; /* read, write ioctl str */
+
+ 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;
+ }
+
+ CDEBUG(D_INFO, "WRITE: conn %d, count %Ld, offset %Ld, '%s'\n",
+ rw_s->conn_id, rw_s->count, rw_s->offset, rw_s->buf);
+
+ err = OBP(obddev, write)(&conn, &rw_s->obdo, rw_s->buf,
+ &rw_s->count, rw_s->offset);
+ ODEBUG(&rw_s->obdo);
+ 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: {
+ struct oic_prealloc_s *prealloc = tmp_buf;
+
+ /* 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 ( !OBT(obddev) || !OBP(obddev, preallocate) )
+ return -EOPNOTSUPP;
+
+ conn.oc_id = prealloc->conn_id;
+ err = OBP(obddev, preallocate)(&conn, &prealloc->alloc,
+ prealloc->ids);
+ if ( err ) {
+ EXIT;
+ return err;
+ }
+
+ 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;
+
+ /* has this minor been registered? */
+ if (!obddev->obd_type)
+ return -ENODEV;
+
+ tmp = (void *)arg + sizeof(unsigned int);
+ get_user(conn_id, (int *) arg);
+
+ 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;
+
+ }
+ case OBD_IOC_COPY: {
+ struct ioc_mv_s *mvdata = tmp_buf;
+
+ 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_INFO, "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 = tmp_buf;
+
+ 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_INFO, "Migrate copying %d bytes\n", sizeof(*mvdata));
+
+ if ( !OBT(obddev) || !OBP(obddev, migrate) )
+ return -EOPNOTSUPP;
+
+ /* do the partition */
+ CDEBUG(D_INFO, "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->src.o_size, 0);
+
+ return err;
+ }
+ case OBD_IOC_PUNCH: {
+ struct oic_rw_s *rw_s = tmp_buf; /* read, write ioctl str */
+
+ 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, punch) ) {
+ err = -EOPNOTSUPP;
+ return err;
+ }
+
+ CDEBUG(D_INFO, "PUNCH: conn %d, count %Ld, offset %Ld\n",
+ rw_s->conn_id, rw_s->count, rw_s->offset);
+ err = OBP(obddev, punch)(&conn, &rw_s->obdo, rw_s->count,
+ rw_s->offset);
+ ODEBUG(&rw_s->obdo);
+ if ( err ) {
+ EXIT;
+ return err;
+ }
+ EXIT;
+ return err;
+ }
+
+ default: {
+ struct obd_type *type;
+ struct oic_generic input;
+ char *nm;
+ 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 */
+ nm = input.att_type;
+ type = obd_nm_to_type(nm);
+#ifdef CONFIG_KMOD
+ if ( !type ) {
+ if ( !request_module(nm) ) {
+ CDEBUG(D_PSDEV, "Loaded module '%s'\n", nm);
+ type = obd_nm_to_type(nm);
+ } else {
+ CDEBUG(D_PSDEV, "Can't load module '%s'\n", nm);
+ }
+ }
+#endif
+ OBD_FREE(input.att_type, input.att_typelen + 1);
+ if ( !type ) {
+ printk(__FUNCTION__ ": 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_INFO, "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;
+ }
+ }
+} /* obd_class_ioctl */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff