-int mthca_READ_MGM(struct mthca_dev *dev, int index, void *mgm,
- u8 *status);
-int mthca_WRITE_MGM(struct mthca_dev *dev, int index, void *mgm,
- u8 *status);
-int mthca_MGID_HASH(struct mthca_dev *dev, void *gid, u16 *hash,
- u8 *status);
+int mthca_READ_MGM(struct mthca_dev *dev, int index,
+ struct mthca_mailbox *mailbox, u8 *status);
+int mthca_WRITE_MGM(struct mthca_dev *dev, int index,
+ struct mthca_mailbox *mailbox, u8 *status);
+int mthca_MGID_HASH(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
+ u16 *hash, u8 *status);