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IB/rdmavt: Add mmap stub

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Adds the stub for the mmap verbs call.

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Dennis Dalessandro 2016-01-06 09:59:04 -08:00 committed by Doug Ledford
parent 3dd1faf89b
commit dc21752e2c
5 changed files with 118 additions and 1 deletions
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2
drivers/infiniband/sw/rdmavt/Makefile
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@ -7,4 +7,4 @@
#
obj-$(CONFIG_INFINIBAND_RDMAVT) += rdmavt.o
rdmavt-y := vt.o ah.o dma.o mad.o mcast.o mr.o pd.o qp.o srq.o
rdmavt-y := vt.o ah.o dma.o mad.o mcast.o mmap.o mr.o pd.o qp.o srq.o

60
drivers/infiniband/sw/rdmavt/mmap.c Normal file
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@ -0,0 +1,60 @@
/*
* 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 <linux/slab.h>
#include "mmap.h"
/**
* rvt_mmap - create a new mmap region
* @context: the IB user context of the process making the mmap() call
* @vma: the VMA to be initialized
* Return zero if the mmap is OK. Otherwise, return an errno.
*/
int rvt_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
{
return -EOPNOTSUPP;
}

55
drivers/infiniband/sw/rdmavt/mmap.h Normal file
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@ -0,0 +1,55 @@
#ifndef DEF_RDMAVTMMAP_H
#define DEF_RDMAVTMMAP_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>
int rvt_mmap(struct ib_ucontext *context, struct vm_area_struct *vma);
#endif /* DEF_RDMAVTMMAP_H */

1
drivers/infiniband/sw/rdmavt/vt.c
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@ -251,6 +251,7 @@ int rvt_register_device(struct rvt_dev_info *rdi)
CHECK_DRIVER_OVERRIDE(rdi, map_phys_fmr);
CHECK_DRIVER_OVERRIDE(rdi, unmap_fmr);
CHECK_DRIVER_OVERRIDE(rdi, dealloc_fmr);
CHECK_DRIVER_OVERRIDE(rdi, mmap);
/* DMA Operations */
rdi->ibdev.dma_ops =

1
drivers/infiniband/sw/rdmavt/vt.h
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@ -56,5 +56,6 @@
#include "mr.h"
#include "srq.h"
#include "mcast.h"
#include "mmap.h"
#endif /* DEF_RDMAVT_H */