151 lines
4.7 KiB
C
151 lines
4.7 KiB
C
#ifndef DEF_RDMA_VT_H
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#define DEF_RDMA_VT_H
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/*
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* Copyright(c) 2015 Intel Corporation.
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* BSD LICENSE
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* - Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/*
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* Structure that low level drivers will populate in order to register with the
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* rdmavt layer.
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*/
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#include "ib_verbs.h"
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/*
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* Things that are driver specific, module parameters in hfi1 and qib
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*/
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struct rvt_driver_params {
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/*
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* driver required fields:
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* node_guid
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* phys_port_cnt
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* dma_device
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* owner
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* driver optional fields (rvt will provide generic value if blank):
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* name
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* node_desc
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* rvt fields, driver value ignored:
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* uverbs_abi_ver
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* node_type
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* num_comp_vectors
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* uverbs_cmd_mask
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*/
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struct ib_device_attr props;
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/*
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* Drivers will need to support a number of notifications to rvt in
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* accordance with certain events. This structure should contain a mask
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* of the supported events. Such events that the rvt may need to know
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* about include:
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* port errors
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* port active
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* lid change
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* sm change
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* client reregister
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* pkey change
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*
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* There may also be other events that the rvt layers needs to know
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* about this is not an exhaustive list. Some events though rvt does not
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* need to rely on the driver for such as completion queue error.
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*/
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int rvt_signal_supported;
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/*
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* Anything driver specific that is not covered by props
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* For instance special module parameters. Goes here.
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*/
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};
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/* Protection domain */
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struct rvt_pd {
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struct ib_pd ibpd;
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int user; /* non-zero if created from user space */
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};
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struct rvt_dev_info {
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/*
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* Prior to calling for registration the driver will be responsible for
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* allocating space for this structure.
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*
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* The driver will also be responsible for filling in certain members of
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* dparms.props
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*/
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struct ib_device ibdev;
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/* Driver specific properties */
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struct rvt_driver_params dparms;
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/* PKey Table goes here */
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/*
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* The work to create port files in /sys/class Infiniband is different
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* depending on the driver. This should not be extracted away and
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* instead drivers are responsible for setting the correct callback for
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* this.
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*/
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int (*port_callback)(struct ib_device *, u8, struct kobject *);
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/* Internal use */
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int n_pds_allocated;
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spinlock_t n_pds_lock; /* Protect pd allocated count */
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};
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static inline struct rvt_pd *ibpd_to_rvtpd(struct ib_pd *ibpd)
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{
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return container_of(ibpd, struct rvt_pd, ibpd);
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}
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static inline struct rvt_dev_info *ib_to_rvt(struct ib_device *ibdev)
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{
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return container_of(ibdev, struct rvt_dev_info, ibdev);
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}
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int rvt_register_device(struct rvt_dev_info *rvd);
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void rvt_unregister_device(struct rvt_dev_info *rvd);
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#endif /* DEF_RDMA_VT_H */
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