IB/rdmavt: Add queue pair function stubs (b518d3e6) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/infiniband/sw/rdmavt/Makefile

+1 −1

Original line number	Diff line number	Diff line
		@@ -7,5 +7,5 @@
		#
		obj-$(CONFIG_INFINIBAND_RDMAVT) += rdmavt.o

		rdmavt-y := vt.o dma.o pd.o
		rdmavt-y := vt.o dma.o pd.o qp.o

drivers/infiniband/sw/rdmavt/qp.c

0 → 100644

+120 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright(c) 2015 Intel Corporation.
		*
		* This file is provided under a dual BSD/GPLv2 license. When using or
		* redistributing this file, you may do so under either license.
		*
		* GPL LICENSE SUMMARY
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of version 2 of the GNU General Public License as
		* published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it will be useful, but
		* WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
		* General Public License for more details.
		*
		* BSD LICENSE
		*
		* 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.
		* - Neither the name of Intel Corporation nor the names of its
		* contributors may be used to endorse or promote products derived
		* from this software without specific prior written permission.
		*
		* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
		* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
		* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
		* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
		* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
		* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
		* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
		* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		*
		*/

		#include "qp.h"

		/**
		* rvt_create_qp - create a queue pair for a device
		* @ibpd: the protection domain who's device we create the queue pair for
		* @init_attr: the attributes of the queue pair
		* @udata: user data for libibverbs.so
		*
		* Returns the queue pair on success, otherwise returns an errno.
		*
		* Called by the ib_create_qp() core verbs function.
		*/
		struct ib_qp rvt_create_qp(struct ib_pd ibpd,
		struct ib_qp_init_attr *init_attr,
		struct ib_udata *udata)
		{
		/*
		* Queue pair creation is mostly an rvt issue. However, drivers have
		* their own unique idea of what queue pare numbers mean. For instance
		* there is a reserved range for PSM.
		*
		* VI-DRIVER-API: make_qpn()
		* Returns a valid QPN for verbs to use
		*/
		return ERR_PTR(-EOPNOTSUPP);
		}

		/**
		* qib_modify_qp - modify the attributes of a queue pair
		* @ibqp: the queue pair who's attributes we're modifying
		* @attr: the new attributes
		* @attr_mask: the mask of attributes to modify
		* @udata: user data for libibverbs.so
		*
		* Returns 0 on success, otherwise returns an errno.
		*/
		int rvt_modify_qp(struct ib_qp ibqp, struct ib_qp_attr attr,
		int attr_mask, struct ib_udata *udata)
		{
		/*
		* VT-DRIVER-API: qp_mtu()
		* OPA devices have a per VL MTU the driver has a mapping of IB SL to SC
		* to VL and the mapping table of MTUs per VL. This is not something
		* that IB has and should not live in the rvt.
		*/
		return -EOPNOTSUPP;
		}

		/**
		* rvt_destroy_qp - destroy a queue pair
		* @ibqp: the queue pair to destroy
		*
		* Returns 0 on success.
		*
		* Note that this can be called while the QP is actively sending or
		* receiving!
		*/
		int rvt_destroy_qp(struct ib_qp *ibqp)
		{
		/*
		* VT-DRIVER-API: qp_flush()
		* Driver provies a mechanism to flush and wait for that flush to
		* finish.
		*/

		return -EOPNOTSUPP;
		}

		int rvt_query_qp(struct ib_qp ibqp, struct ib_qp_attr attr,
		int attr_mask, struct ib_qp_init_attr *init_attr)
		{
		return -EOPNOTSUPP;
		}

drivers/infiniband/sw/rdmavt/qp.h

0 → 100644

+67 −0

Original line number	Diff line number	Diff line
		#ifndef DEF_RVTQP_H
		#define DEF_RVTQP_H

		/*
		* Copyright(c) 2015 Intel Corporation.
		*
		* This file is provided under a dual BSD/GPLv2 license. When using or
		* redistributing this file, you may do so under either license.
		*
		* GPL LICENSE SUMMARY
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of version 2 of the GNU General Public License as
		* published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it will be useful, but
		* WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
		* General Public License for more details.
		*
		* BSD LICENSE
		*
		* 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.
		* - Neither the name of Intel Corporation nor the names of its
		* contributors may be used to endorse or promote products derived
		* from this software without specific prior written permission.
		*
		* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
		* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
		* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
		* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
		* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
		* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
		* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
		* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		*
		*/

		#include <rdma/rdma_vt.h>

		struct rvt_qp {
		struct ib_qp *ibqp;
		/* Other stuff */
		};

		struct ib_qp rvt_create_qp(struct ib_pd ibpd,
		struct ib_qp_init_attr *init_attr,
		struct ib_udata *udata);
		int rvt_modify_qp(struct ib_qp ibqp, struct ib_qp_attr attr,
		int attr_mask, struct ib_udata *udata);
		int rvt_destroy_qp(struct ib_qp *ibqp);
		int rvt_query_qp(struct ib_qp ibqp, struct ib_qp_attr attr,
		int attr_mask, struct ib_qp_init_attr *init_attr);

		#endif /* DEF_RVTQP_H */

drivers/infiniband/sw/rdmavt/vt.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -220,6 +220,12 @@ int rvt_register_device(struct rvt_dev_info *rdi)
		CHECK_DRIVER_OVERRIDE(rdi, alloc_ucontext);
		CHECK_DRIVER_OVERRIDE(rdi, dealloc_ucontext);

		/* Queue Pairs */
		CHECK_DRIVER_OVERRIDE(rdi, create_qp);
		CHECK_DRIVER_OVERRIDE(rdi, modify_qp);
		CHECK_DRIVER_OVERRIDE(rdi, destroy_qp);
		CHECK_DRIVER_OVERRIDE(rdi, query_qp);

		/* DMA Operations */
		rdi->ibdev.dma_ops =
		rdi->ibdev.dma_ops ? : &rvt_default_dma_mapping_ops;

drivers/infiniband/sw/rdmavt/vt.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -51,5 +51,6 @@
		#include <rdma/rdma_vt.h>
		#include "dma.h"
		#include "pd.h"
		#include "qp.h"

		#endif /* DEF_RDMAVT_H */