diff --git a/drivers/infiniband/core/Makefile b/drivers/infiniband/core/Makefile
index 1819623..7676592 100644
--- a/drivers/infiniband/core/Makefile
+++ b/drivers/infiniband/core/Makefile
@@ -29,4 +29,4 @@ ib_umad-y :=			user_mad.o
 ib_ucm-y :=			ucm.o
 
 ib_uverbs-y :=			uverbs_main.o uverbs_cmd.o uverbs_marshall.o \
-				rdma_core.o
+				rdma_core.o uverbs_ioctl_cmd.o
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
index ae7d4b8..05e9e83 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h
@@ -176,6 +176,7 @@ struct ib_ucq_object {
 };
 
 void idr_remove_uobj(struct ib_uobject *uobj);
+extern const struct file_operations uverbs_event_fops;
 
 struct file *ib_uverbs_alloc_event_file(struct ib_uverbs_file *uverbs_file,
 					struct ib_device *ib_dev,
@@ -200,6 +201,8 @@ void ib_uverbs_event_handler(struct ib_event_handler *handler,
 void ib_uverbs_dealloc_xrcd(struct ib_uverbs_device *dev, struct ib_xrcd *xrcd);
 
 int uverbs_dealloc_mw(struct ib_mw *mw);
+void ib_uverbs_detach_umcast(struct ib_qp *qp,
+			     struct ib_uqp_object *uobj);
 
 struct ib_uverbs_flow_spec {
 	union {
diff --git a/drivers/infiniband/core/uverbs_ioctl_cmd.c b/drivers/infiniband/core/uverbs_ioctl_cmd.c
new file mode 100644
index 0000000..cb19f38
--- /dev/null
+++ b/drivers/infiniband/core/uverbs_ioctl_cmd.c
@@ -0,0 +1,239 @@
+/*
+ * Copyright (c) 2016, Mellanox Technologies inc.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <rdma/uverbs_ioctl_cmd.h>
+#include <rdma/ib_user_verbs.h>
+#include <rdma/ib_verbs.h>
+#include <linux/bug.h>
+#include <linux/file.h>
+#include "rdma_core.h"
+#include "uverbs.h"
+
+void uverbs_free_ah(const struct uverbs_type_alloc_action *uobject_type,
+		    struct ib_uobject *uobject)
+{
+	ib_destroy_ah((struct ib_ah *)uobject->object);
+}
+
+void uverbs_free_flow(const struct uverbs_type_alloc_action *type_alloc_action,
+		      struct ib_uobject *uobject)
+{
+	ib_destroy_flow((struct ib_flow *)uobject->object);
+}
+
+void uverbs_free_mw(const struct uverbs_type_alloc_action *type_alloc_action,
+		    struct ib_uobject *uobject)
+{
+	uverbs_dealloc_mw((struct ib_mw *)uobject->object);
+}
+
+void uverbs_free_qp(const struct uverbs_type_alloc_action *type_alloc_action,
+		    struct ib_uobject *uobject)
+{
+	struct ib_qp *qp = uobject->object;
+	struct ib_uqp_object *uqp =
+		container_of(uobject, struct ib_uqp_object, uevent.uobject);
+
+	if (qp != qp->real_qp) {
+		ib_close_qp(qp);
+	} else {
+		ib_uverbs_detach_umcast(qp, uqp);
+		ib_destroy_qp(qp);
+	}
+	ib_uverbs_release_uevent(uobject->context->ufile, &uqp->uevent);
+}
+
+void uverbs_free_rwq_ind_tbl(const struct uverbs_type_alloc_action *type_alloc_action,
+			     struct ib_uobject *uobject)
+{
+	struct ib_rwq_ind_table *rwq_ind_tbl = uobject->object;
+	struct ib_wq **ind_tbl = rwq_ind_tbl->ind_tbl;
+
+	ib_destroy_rwq_ind_table(rwq_ind_tbl);
+	kfree(ind_tbl);
+}
+
+void uverbs_free_wq(const struct uverbs_type_alloc_action *type_alloc_action,
+		    struct ib_uobject *uobject)
+{
+	struct ib_wq *wq = uobject->object;
+	struct ib_uwq_object *uwq =
+		container_of(uobject, struct ib_uwq_object, uevent.uobject);
+
+	ib_destroy_wq(wq);
+	ib_uverbs_release_uevent(uobject->context->ufile, &uwq->uevent);
+}
+
+void uverbs_free_srq(const struct uverbs_type_alloc_action *type_alloc_action,
+		     struct ib_uobject *uobject)
+{
+	struct ib_srq *srq = uobject->object;
+	struct ib_uevent_object *uevent =
+		container_of(uobject, struct ib_uevent_object, uobject);
+
+	ib_destroy_srq(srq);
+	ib_uverbs_release_uevent(uobject->context->ufile, uevent);
+}
+
+void uverbs_free_cq(const struct uverbs_type_alloc_action *type_alloc_action,
+		    struct ib_uobject *uobject)
+{
+	struct ib_cq *cq = uobject->object;
+	struct ib_uverbs_event_file *ev_file = cq->cq_context;
+	struct ib_ucq_object *ucq =
+		container_of(uobject, struct ib_ucq_object, uobject);
+
+	ib_destroy_cq(cq);
+	ib_uverbs_release_ucq(uobject->context->ufile, ev_file, ucq);
+}
+
+void uverbs_free_mr(const struct uverbs_type_alloc_action *type_alloc_action,
+		    struct ib_uobject *uobject)
+{
+	ib_dereg_mr((struct ib_mr *)uobject->object);
+}
+
+void uverbs_free_xrcd(const struct uverbs_type_alloc_action *type_alloc_action,
+		      struct ib_uobject *uobject)
+{
+	struct ib_xrcd *xrcd = uobject->object;
+
+	mutex_lock(&uobject->context->ufile->device->xrcd_tree_mutex);
+	ib_uverbs_dealloc_xrcd(uobject->context->ufile->device, xrcd);
+	mutex_unlock(&uobject->context->ufile->device->xrcd_tree_mutex);
+}
+
+void uverbs_free_pd(const struct uverbs_type_alloc_action *type_alloc_action,
+		    struct ib_uobject *uobject)
+{
+	ib_dealloc_pd((struct ib_pd *)uobject->object);
+}
+
+void uverbs_free_event_file(const struct uverbs_type_alloc_action *type_alloc_action,
+			    struct ib_uobject *uobject)
+{
+	struct ib_uverbs_event_file *event_file = (void *)(uobject + 1);
+
+	spin_lock_irq(&event_file->lock);
+	event_file->is_closed = 1;
+	spin_unlock_irq(&event_file->lock);
+
+	wake_up_interruptible(&event_file->poll_wait);
+	kill_fasync(&event_file->async_queue, SIGIO, POLL_IN);
+};
+
+DECLARE_UVERBS_TYPE(uverbs_type_comp_channel,
+		    /* 1 is used in order to free the comp_channel after the CQs */
+		    &UVERBS_TYPE_ALLOC_FD(1, sizeof(struct ib_uobject) + sizeof(struct ib_uverbs_event_file),
+					  uverbs_free_event_file,
+					  &uverbs_event_fops,
+					  "[infinibandevent]", O_RDONLY),
+		    /* TODO: implement actions for comp channel */
+		    NULL);
+
+DECLARE_UVERBS_TYPE(uverbs_type_cq,
+		    /* 1 is used in order to free the MR after all the MWs */
+		    &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_ucq_object), 0,
+					      uverbs_free_cq),
+		    /* TODO: implement actions for cq */
+		    NULL);
+
+DECLARE_UVERBS_TYPE(uverbs_type_qp,
+		    /* 1 is used in order to free the MR after all the MWs */
+		    &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uqp_object), 0,
+					      uverbs_free_qp),
+		    /* TODO: implement actions for qp */
+		    NULL);
+
+DECLARE_UVERBS_TYPE(uverbs_type_mw,
+		    &UVERBS_TYPE_ALLOC_IDR(1, uverbs_free_mw),
+		    /* TODO: implement actions for mw */
+		    NULL);
+
+DECLARE_UVERBS_TYPE(uverbs_type_mr,
+		    /* 1 is used in order to free the MR after all the MWs */
+		    &UVERBS_TYPE_ALLOC_IDR(1, uverbs_free_mr),
+		    /* TODO: implement actions for mr */
+		    NULL);
+
+DECLARE_UVERBS_TYPE(uverbs_type_srq,
+		    &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_usrq_object), 0,
+					      uverbs_free_srq),
+		    /* TODO: implement actions for srq */
+		    NULL);
+
+DECLARE_UVERBS_TYPE(uverbs_type_ah,
+		    &UVERBS_TYPE_ALLOC_IDR(0, uverbs_free_ah),
+		    /* TODO: implement actions for ah */
+		    NULL);
+
+DECLARE_UVERBS_TYPE(uverbs_type_flow,
+		    &UVERBS_TYPE_ALLOC_IDR(0, uverbs_free_flow),
+		    /* TODO: implement actions for flow */
+		    NULL);
+
+DECLARE_UVERBS_TYPE(uverbs_type_wq,
+		    &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uwq_object), 0,
+					      uverbs_free_wq),
+		    /* TODO: implement actions for wq */
+		    NULL);
+
+DECLARE_UVERBS_TYPE(uverbs_type_rwq_ind_table,
+		    &UVERBS_TYPE_ALLOC_IDR(0, uverbs_free_rwq_ind_tbl),
+		    /* TODO: implement actions for rwq_ind_table */
+		    NULL);
+
+DECLARE_UVERBS_TYPE(uverbs_type_xrcd,
+		    &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uxrcd_object), 0,
+					      uverbs_free_xrcd),
+		    /* TODO: implement actions for xrcd */
+		    NULL);
+
+DECLARE_UVERBS_TYPE(uverbs_type_pd,
+		    /* 2 is used in order to free the PD after all objects */
+		    &UVERBS_TYPE_ALLOC_IDR(2, uverbs_free_pd),
+		    /* TODO: implement actions for pd */
+		    NULL);
+
+DECLARE_UVERBS_TYPE(uverbs_type_device, NULL,
+		    /* TODO: implement actions for device */
+		    NULL);
+
+DECLARE_UVERBS_TYPES(uverbs_common_types,
+		     ADD_UVERBS_TYPE(UVERBS_TYPE_DEVICE, uverbs_type_device),
+		     ADD_UVERBS_TYPE(UVERBS_TYPE_PD, uverbs_type_pd),
+		     ADD_UVERBS_TYPE(UVERBS_TYPE_MR, uverbs_type_mr),
+		     ADD_UVERBS_TYPE(UVERBS_TYPE_COMP_CHANNEL, uverbs_type_comp_channel),
+		     ADD_UVERBS_TYPE(UVERBS_TYPE_CQ, uverbs_type_cq),
+		     ADD_UVERBS_TYPE(UVERBS_TYPE_QP, uverbs_type_qp),
+);
+EXPORT_SYMBOL(uverbs_common_types);
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index e63357a..b560c88 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -199,8 +199,8 @@ void ib_uverbs_release_uevent(struct ib_uverbs_file *file,
 	spin_unlock_irq(&file->async_file->lock);
 }
 
-static void ib_uverbs_detach_umcast(struct ib_qp *qp,
-				    struct ib_uqp_object *uobj)
+void ib_uverbs_detach_umcast(struct ib_qp *qp,
+			     struct ib_uqp_object *uobj)
 {
 	struct ib_uverbs_mcast_entry *mcast, *tmp;
 
@@ -479,7 +479,7 @@ static int ib_uverbs_event_close(struct inode *inode, struct file *filp)
 	return 0;
 }
 
-static const struct file_operations uverbs_event_fops = {
+const struct file_operations uverbs_event_fops = {
 	.owner	 = THIS_MODULE,
 	.read	 = ib_uverbs_event_read,
 	.poll    = ib_uverbs_event_poll,
diff --git a/include/rdma/uverbs_ioctl_cmd.h b/include/rdma/uverbs_ioctl_cmd.h
new file mode 100644
index 0000000..614e80c
--- /dev/null
+++ b/include/rdma/uverbs_ioctl_cmd.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2016, Mellanox Technologies inc.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef _UVERBS_IOCTL_CMD_
+#define _UVERBS_IOCTL_CMD_
+
+#include <rdma/uverbs_ioctl.h>
+
+enum uverbs_common_types {
+	UVERBS_TYPE_DEVICE, /* Don't use IDRs here */
+	UVERBS_TYPE_PD,
+	UVERBS_TYPE_COMP_CHANNEL,
+	UVERBS_TYPE_CQ,
+	UVERBS_TYPE_QP,
+	UVERBS_TYPE_SRQ,
+	UVERBS_TYPE_AH,
+	UVERBS_TYPE_MR,
+	UVERBS_TYPE_MW,
+	UVERBS_TYPE_FLOW,
+	UVERBS_TYPE_XRCD,
+	UVERBS_TYPE_RWQ_IND_TBL,
+	UVERBS_TYPE_WQ,
+	UVERBS_TYPE_LAST,
+};
+
+extern const struct uverbs_type uverbs_type_cq;
+extern const struct uverbs_type uverbs_type_qp;
+extern const struct uverbs_type uverbs_type_rwq_ind_table;
+extern const struct uverbs_type uverbs_type_wq;
+extern const struct uverbs_type uverbs_type_srq;
+extern const struct uverbs_type uverbs_type_ah;
+extern const struct uverbs_type uverbs_type_flow;
+extern const struct uverbs_type uverbs_type_comp_channel;
+extern const struct uverbs_type uverbs_type_mr;
+extern const struct uverbs_type uverbs_type_mw;
+extern const struct uverbs_type uverbs_type_pd;
+extern const struct uverbs_type uverbs_type_xrcd;
+extern const struct uverbs_type uverbs_type_device;
+extern const struct uverbs_type_group uverbs_common_types;
+#endif
+
