[PATCH rdma-core] verbs: Provide native ioctl implementations for trivial destroy

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In the kernel these all go through the common destroy flow and take no
code. Call out to ioctl directly for these destroys instead of using
write.

Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
---
 libibverbs/CMakeLists.txt |   7 +++
 libibverbs/cmd.c          | 117 --------------------------------------
 libibverbs/cmd_ah.c       |  63 ++++++++++++++++++++
 libibverbs/cmd_flow.c     |  65 +++++++++++++++++++++
 libibverbs/cmd_mr.c       |  65 +++++++++++++++++++++
 libibverbs/cmd_mw.c       |  64 +++++++++++++++++++++
 libibverbs/cmd_pd.c       |  64 +++++++++++++++++++++
 libibverbs/cmd_rwq_ind.c  |  66 +++++++++++++++++++++
 libibverbs/cmd_xrcd.c     |  64 +++++++++++++++++++++
 9 files changed, 458 insertions(+), 117 deletions(-)
 create mode 100644 libibverbs/cmd_ah.c
 create mode 100644 libibverbs/cmd_flow.c
 create mode 100644 libibverbs/cmd_mr.c
 create mode 100644 libibverbs/cmd_mw.c
 create mode 100644 libibverbs/cmd_pd.c
 create mode 100644 libibverbs/cmd_rwq_ind.c
 create mode 100644 libibverbs/cmd_xrcd.c

This is the matching userspace patch for

https://patchwork.kernel.org/patch/10706139/

It is still being testing so for review only.

Jason

diff --git a/libibverbs/CMakeLists.txt b/libibverbs/CMakeLists.txt
index ddf5995e7fae31..edbcfdf71daa59 100644
--- a/libibverbs/CMakeLists.txt
+++ b/libibverbs/CMakeLists.txt
@@ -30,12 +30,19 @@ rdma_library(ibverbs "${CMAKE_CURRENT_BINARY_DIR}/libibverbs.map"
   1 1.5.${PACKAGE_VERSION}
   all_providers.c
   cmd.c
+  cmd_ah.c
   cmd_counters.c
   cmd_cq.c
   cmd_dm.c
   cmd_fallback.c
+  cmd_flow.c
   cmd_flow_action.c
   cmd_ioctl.c
+  cmd_mr.c
+  cmd_mw.c
+  cmd_pd.c
+  cmd_rwq_ind.c
+  cmd_xrcd.c
   compat-1_0.c
   device.c
   dummy_ops.c
diff --git a/libibverbs/cmd.c b/libibverbs/cmd.c
index a824202e7dbd5f..2e5e63d51775df 100644
--- a/libibverbs/cmd.c
+++ b/libibverbs/cmd.c
@@ -326,22 +326,6 @@ int ibv_cmd_alloc_pd(struct ibv_context *context, struct ibv_pd *pd,
 	return 0;
 }
 
-int ibv_cmd_dealloc_pd(struct ibv_pd *pd)
-{
-	struct ibv_dealloc_pd req;
-	int ret;
-
-	req.core_payload = (struct ib_uverbs_dealloc_pd){
-		.pd_handle = pd->handle,
-	};
-	ret = execute_cmd_write_req(pd->context, IB_USER_VERBS_CMD_DEALLOC_PD,
-				    &req, sizeof(req));
-	if (verbs_is_destroy_err(&ret))
-		return ret;
-
-	return 0;
-}
-
 int ibv_cmd_open_xrcd(struct ibv_context *context, struct verbs_xrcd *xrcd,
 		      int vxrcd_size,
 		      struct ibv_xrcd_init_attr *attr,
@@ -374,23 +358,6 @@ int ibv_cmd_open_xrcd(struct ibv_context *context, struct verbs_xrcd *xrcd,
 	return 0;
 }
 
-int ibv_cmd_close_xrcd(struct verbs_xrcd *xrcd)
-{
-	struct ibv_close_xrcd req;
-	int ret;
-
-	req.core_payload = (struct ib_uverbs_close_xrcd){
-		.xrcd_handle = xrcd->handle,
-	};
-	ret = execute_cmd_write_req(xrcd->xrcd.context,
-				    IB_USER_VERBS_CMD_CLOSE_XRCD, &req,
-				    sizeof(req));
-	if (verbs_is_destroy_err(&ret))
-		return ret;
-
-	return 0;
-}
-
 int ibv_cmd_reg_mr(struct ibv_pd *pd, void *addr, size_t length,
 		   uint64_t hca_va, int access,
 		   struct verbs_mr *vmr, struct ibv_reg_mr *cmd,
@@ -448,23 +415,6 @@ int ibv_cmd_rereg_mr(struct verbs_mr *vmr, uint32_t flags, void *addr,
 	return 0;
 }
 
-int ibv_cmd_dereg_mr(struct verbs_mr *vmr)
-{
-	struct ibv_dereg_mr req;
-	int ret;
-
-	req.core_payload = (struct ib_uverbs_dereg_mr){
-		.mr_handle = vmr->ibv_mr.handle,
-	};
-	ret = execute_cmd_write_req(vmr->ibv_mr.context,
-				    IB_USER_VERBS_CMD_DEREG_MR, &req,
-				    sizeof(req));
-	if (verbs_is_destroy_err(&ret))
-		return ret;
-
-	return 0;
-}
-
 int ibv_cmd_alloc_mw(struct ibv_pd *pd, enum ibv_mw_type type,
 		     struct ibv_mw *mw, struct ibv_alloc_mw *cmd,
 		     size_t cmd_size,
@@ -490,22 +440,6 @@ int ibv_cmd_alloc_mw(struct ibv_pd *pd, enum ibv_mw_type type,
 	return 0;
 }
 
-int ibv_cmd_dealloc_mw(struct ibv_mw *mw)
-{
-	struct ibv_dealloc_mw req;
-	int ret;
-
-	req.core_payload = (struct ib_uverbs_dealloc_mw) {
-		.mw_handle = mw->handle,
-	};
-	ret = execute_cmd_write_req(mw->context, IB_USER_VERBS_CMD_DEALLOC_MW,
-				    &req, sizeof(req));
-	if (verbs_is_destroy_err(&ret))
-		return ret;
-
-	return 0;
-}
-
 int ibv_cmd_poll_cq(struct ibv_cq *ibcq, int ne, struct ibv_wc *wc)
 {
 	struct ibv_poll_cq       cmd;
@@ -1529,22 +1463,6 @@ int ibv_cmd_create_ah(struct ibv_pd *pd, struct ibv_ah *ah,
 	return 0;
 }
 
-int ibv_cmd_destroy_ah(struct ibv_ah *ah)
-{
-	struct ibv_destroy_ah req;
-	int ret;
-
-	req.core_payload = (struct ib_uverbs_destroy_ah){
-		.ah_handle = ah->handle,
-	};
-	ret = execute_cmd_write_req(ah->context, IB_USER_VERBS_CMD_DESTROY_AH,
-				    &req, sizeof(req));
-	if (verbs_is_destroy_err(&ret))
-		return ret;
-
-	return 0;
-}
-
 int ibv_cmd_destroy_qp(struct ibv_qp *qp)
 {
 	struct ibv_destroy_qp req;
@@ -1851,23 +1769,6 @@ int ibv_cmd_create_flow(struct ibv_qp *qp,
 	return 0;
 }
 
-int ibv_cmd_destroy_flow(struct ibv_flow *flow_id)
-{
-	struct ibv_destroy_flow req;
-	int ret;
-
-	req.core_payload = (struct ib_uverbs_destroy_flow){
-		.flow_handle = flow_id->handle,
-	};
-	ret = execute_cmd_write_ex_req(flow_id->context,
-				       IB_USER_VERBS_EX_CMD_DESTROY_FLOW, &req,
-				       sizeof(req));
-	if (verbs_is_destroy_err(&ret))
-		return ret;
-
-	return 0;
-}
-
 int ibv_cmd_create_wq(struct ibv_context *context,
 		      struct ibv_wq_init_attr *wq_init_attr,
 		      struct ibv_wq *wq,
@@ -2017,24 +1918,6 @@ int ibv_cmd_create_rwq_ind_table(struct ibv_context *context,
 	return 0;
 }
 
-int ibv_cmd_destroy_rwq_ind_table(struct ibv_rwq_ind_table *rwq_ind_table)
-{
-	struct ibv_destroy_rwq_ind_table req;
-	int ret;
-
-	req.core_payload = (struct ib_uverbs_ex_destroy_rwq_ind_table){
-		.ind_tbl_handle = rwq_ind_table->ind_tbl_handle,
-	};
-	ret = execute_cmd_write_ex_req(rwq_ind_table->context,
-				       IB_USER_VERBS_EX_CMD_DESTROY_RWQ_IND_TBL,
-				       &req, sizeof(req));
-	if (verbs_is_destroy_err(&ret))
-		return ret;
-
-	return 0;
-}
-
-
 int ibv_cmd_modify_cq(struct ibv_cq *cq,
 		      struct ibv_modify_cq_attr *attr,
 		      struct ibv_modify_cq *cmd,
diff --git a/libibverbs/cmd_ah.c b/libibverbs/cmd_ah.c
new file mode 100644
index 00000000000000..76d4ba145b59d6
--- /dev/null
+++ b/libibverbs/cmd_ah.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2018 Mellanox Technologies, Ltd.  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 <infiniband/cmd_write.h>
+
+int ibv_cmd_destroy_ah(struct ibv_ah *ah)
+{
+	DECLARE_FBCMD_BUFFER(cmdb, UVERBS_OBJECT_AH,
+			     UVERBS_METHOD_AH_DESTROY, 1, NULL);
+	int ret;
+
+	fill_attr_in_obj(cmdb, UVERBS_ATTR_DESTROY_AH_HANDLE, ah->handle);
+
+	switch (execute_ioctl_fallback(ah->context, destroy_ah, cmdb, &ret)) {
+	case TRY_WRITE: {
+		struct ibv_destroy_ah req;
+
+		req.core_payload = (struct ib_uverbs_destroy_ah){
+			.ah_handle = ah->handle,
+		};
+		ret = execute_cmd_write_req(ah->context,
+					    IB_USER_VERBS_CMD_DESTROY_AH, &req,
+					    sizeof(req));
+		break;
+	}
+
+	default:
+		break;
+	}
+
+	if (verbs_is_destroy_err(&ret))
+		return ret;
+	return 0;
+}
diff --git a/libibverbs/cmd_flow.c b/libibverbs/cmd_flow.c
new file mode 100644
index 00000000000000..2cb09b91fa413e
--- /dev/null
+++ b/libibverbs/cmd_flow.c
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2018 Mellanox Technologies, Ltd.  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 <infiniband/cmd_write.h>
+
+int ibv_cmd_destroy_flow(struct ibv_flow *flow_id)
+{
+	DECLARE_FBCMD_BUFFER(cmdb, UVERBS_OBJECT_FLOW,
+			     UVERBS_METHOD_FLOW_DESTROY, 1, NULL);
+	int ret;
+
+	fill_attr_in_obj(cmdb, UVERBS_ATTR_DESTROY_FLOW_HANDLE,
+			 flow_id->handle);
+
+	switch (execute_ioctl_fallback(flow_id->context, destroy_ah, cmdb,
+				       &ret)) {
+	case TRY_WRITE: {
+		struct ibv_destroy_flow req;
+
+		req.core_payload = (struct ib_uverbs_destroy_flow){
+			.flow_handle = flow_id->handle,
+		};
+		ret = execute_cmd_write_ex_req(
+			flow_id->context, IB_USER_VERBS_EX_CMD_DESTROY_FLOW,
+			&req, sizeof(req));
+		break;
+	}
+
+	default:
+		break;
+	}
+
+	if (verbs_is_destroy_err(&ret))
+		return ret;
+	return 0;
+}
diff --git a/libibverbs/cmd_mr.c b/libibverbs/cmd_mr.c
new file mode 100644
index 00000000000000..e008025a8c8542
--- /dev/null
+++ b/libibverbs/cmd_mr.c
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2018 Mellanox Technologies, Ltd.  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 <infiniband/cmd_write.h>
+
+int ibv_cmd_dereg_mr(struct verbs_mr *vmr)
+{
+	DECLARE_FBCMD_BUFFER(cmdb, UVERBS_OBJECT_MR, UVERBS_METHOD_MR_DESTROY,
+			     1, NULL);
+	int ret;
+
+	fill_attr_in_obj(cmdb, UVERBS_ATTR_DESTROY_MR_HANDLE,
+			 vmr->ibv_mr.handle);
+
+	switch (execute_ioctl_fallback(vmr->ibv_mr.context, dereg_mr, cmdb,
+				       &ret)) {
+	case TRY_WRITE: {
+		struct ibv_dereg_mr req;
+
+		req.core_payload = (struct ib_uverbs_dereg_mr){
+			.mr_handle = vmr->ibv_mr.handle,
+		};
+		ret = execute_cmd_write_req(vmr->ibv_mr.context,
+					    IB_USER_VERBS_CMD_DEREG_MR, &req,
+					    sizeof(req));
+		break;
+	}
+
+	default:
+		break;
+	}
+
+	if (verbs_is_destroy_err(&ret))
+		return ret;
+	return 0;
+}
diff --git a/libibverbs/cmd_mw.c b/libibverbs/cmd_mw.c
new file mode 100644
index 00000000000000..387d4db68461b8
--- /dev/null
+++ b/libibverbs/cmd_mw.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2018 Mellanox Technologies, Ltd.  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 <infiniband/cmd_write.h>
+
+int ibv_cmd_dealloc_mw(struct ibv_mw *mw)
+{
+	DECLARE_FBCMD_BUFFER(cmdb, UVERBS_OBJECT_MW, UVERBS_METHOD_MW_DESTROY,
+			     1, NULL);
+	int ret;
+
+	fill_attr_in_obj(cmdb, UVERBS_ATTR_DESTROY_MW_HANDLE,
+			 mw->handle);
+
+	switch (execute_ioctl_fallback(mw->context, dealloc_mw, cmdb, &ret)) {
+	case TRY_WRITE: {
+		struct ibv_dealloc_mw req;
+
+		req.core_payload = (struct ib_uverbs_dealloc_mw){
+			.mw_handle = mw->handle,
+		};
+		ret = execute_cmd_write_req(mw->context,
+					    IB_USER_VERBS_CMD_DEALLOC_MW, &req,
+					    sizeof(req));
+		break;
+	}
+
+	default:
+		break;
+	}
+
+	if (verbs_is_destroy_err(&ret))
+		return ret;
+	return 0;
+}
diff --git a/libibverbs/cmd_pd.c b/libibverbs/cmd_pd.c
new file mode 100644
index 00000000000000..d1e237be92ce8e
--- /dev/null
+++ b/libibverbs/cmd_pd.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2018 Mellanox Technologies, Ltd.  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 <infiniband/cmd_write.h>
+
+int ibv_cmd_dealloc_pd(struct ibv_pd *pd)
+{
+	DECLARE_FBCMD_BUFFER(cmdb, UVERBS_OBJECT_PD, UVERBS_METHOD_PD_DESTROY,
+			     1, NULL);
+	int ret;
+
+	fill_attr_in_obj(cmdb, UVERBS_ATTR_DESTROY_PD_HANDLE,
+			 pd->handle);
+
+	switch (execute_ioctl_fallback(pd->context, dealloc_pd, cmdb, &ret)) {
+	case TRY_WRITE: {
+		struct ibv_dealloc_pd req;
+
+		req.core_payload = (struct ib_uverbs_dealloc_pd){
+			.pd_handle = pd->handle,
+		};
+		ret = execute_cmd_write_req(pd->context,
+					    IB_USER_VERBS_CMD_DEALLOC_PD, &req,
+					    sizeof(req));
+		break;
+	}
+
+	default:
+		break;
+	}
+
+	if (verbs_is_destroy_err(&ret))
+		return ret;
+	return 0;
+}
diff --git a/libibverbs/cmd_rwq_ind.c b/libibverbs/cmd_rwq_ind.c
new file mode 100644
index 00000000000000..78163b8a3b1493
--- /dev/null
+++ b/libibverbs/cmd_rwq_ind.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2018 Mellanox Technologies, Ltd.  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 <infiniband/cmd_write.h>
+
+int ibv_cmd_destroy_rwq_ind_table(struct ibv_rwq_ind_table *rwq_ind_table)
+{
+	DECLARE_FBCMD_BUFFER(cmdb, UVERBS_OBJECT_RWQ_IND_TBL,
+			     UVERBS_METHOD_RWQ_IND_TBL_DESTROY, 1, NULL);
+	int ret;
+
+	fill_attr_in_obj(cmdb, UVERBS_ATTR_DESTROY_RWQ_IND_TBL_HANDLE,
+			 rwq_ind_table->ind_tbl_handle);
+
+	switch (execute_ioctl_fallback(rwq_ind_table->context, destroy_ah, cmdb,
+				       &ret)) {
+	case TRY_WRITE: {
+		struct ibv_destroy_rwq_ind_table req;
+
+		req.core_payload = (struct ib_uverbs_ex_destroy_rwq_ind_table){
+			.ind_tbl_handle = rwq_ind_table->ind_tbl_handle,
+		};
+		ret = execute_cmd_write_ex_req(
+			rwq_ind_table->context,
+			IB_USER_VERBS_EX_CMD_DESTROY_RWQ_IND_TBL, &req,
+			sizeof(req));
+		break;
+	}
+
+	default:
+		break;
+	}
+
+	if (verbs_is_destroy_err(&ret))
+		return ret;
+	return 0;
+}
diff --git a/libibverbs/cmd_xrcd.c b/libibverbs/cmd_xrcd.c
new file mode 100644
index 00000000000000..52d2952e398171
--- /dev/null
+++ b/libibverbs/cmd_xrcd.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2018 Mellanox Technologies, Ltd.  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 <infiniband/cmd_write.h>
+
+int ibv_cmd_close_xrcd(struct verbs_xrcd *xrcd)
+{
+	DECLARE_FBCMD_BUFFER(cmdb, UVERBS_OBJECT_XRCD,
+			     UVERBS_METHOD_XRCD_DESTROY, 1, NULL);
+	int ret;
+
+	fill_attr_in_obj(cmdb, UVERBS_ATTR_DESTROY_XRCD_HANDLE, xrcd->handle);
+
+	switch (execute_ioctl_fallback(xrcd->xrcd.context, close_xrcd, cmdb,
+				       &ret)) {
+	case TRY_WRITE: {
+		struct ibv_close_xrcd req;
+
+		req.core_payload = (struct ib_uverbs_close_xrcd){
+			.xrcd_handle = xrcd->handle,
+		};
+		ret = execute_cmd_write_req(xrcd->xrcd.context,
+					    IB_USER_VERBS_CMD_CLOSE_XRCD, &req,
+					    sizeof(req));
+		break;
+	}
+
+	default:
+		break;
+	}
+
+	if (verbs_is_destroy_err(&ret))
+		return ret;
+	return 0;
+}
-- 
2.19.2





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