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IB/rdmavt: Add queue pair function stubs
Adds the stubs for create, modify, destroy and query functions for queue pairs. 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
Doug Ledford
parent
c4ed7d8bb0
commit
b518d3e69e
@ -7,5 +7,5 @@
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#
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obj-$(CONFIG_INFINIBAND_RDMAVT) += rdmavt.o
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rdmavt-y := vt.o dma.o pd.o
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rdmavt-y := vt.o dma.o pd.o qp.o
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120
drivers/infiniband/sw/rdmavt/qp.c
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120
drivers/infiniband/sw/rdmavt/qp.c
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@ -0,0 +1,120 @@
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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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#include "qp.h"
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/**
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* rvt_create_qp - create a queue pair for a device
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* @ibpd: the protection domain who's device we create the queue pair for
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* @init_attr: the attributes of the queue pair
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* @udata: user data for libibverbs.so
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*
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* Returns the queue pair on success, otherwise returns an errno.
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*
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* Called by the ib_create_qp() core verbs function.
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*/
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struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
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struct ib_qp_init_attr *init_attr,
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struct ib_udata *udata)
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{
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/*
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* Queue pair creation is mostly an rvt issue. However, drivers have
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* their own unique idea of what queue pare numbers mean. For instance
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* there is a reserved range for PSM.
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*
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* VI-DRIVER-API: make_qpn()
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* Returns a valid QPN for verbs to use
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*/
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return ERR_PTR(-EOPNOTSUPP);
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}
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/**
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* qib_modify_qp - modify the attributes of a queue pair
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* @ibqp: the queue pair who's attributes we're modifying
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* @attr: the new attributes
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* @attr_mask: the mask of attributes to modify
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* @udata: user data for libibverbs.so
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*
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* Returns 0 on success, otherwise returns an errno.
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*/
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int rvt_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
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int attr_mask, struct ib_udata *udata)
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{
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/*
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* VT-DRIVER-API: qp_mtu()
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* OPA devices have a per VL MTU the driver has a mapping of IB SL to SC
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* to VL and the mapping table of MTUs per VL. This is not something
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* that IB has and should not live in the rvt.
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*/
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return -EOPNOTSUPP;
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}
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/**
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* rvt_destroy_qp - destroy a queue pair
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* @ibqp: the queue pair to destroy
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*
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* Returns 0 on success.
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*
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* Note that this can be called while the QP is actively sending or
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* receiving!
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*/
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int rvt_destroy_qp(struct ib_qp *ibqp)
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{
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/*
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* VT-DRIVER-API: qp_flush()
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* Driver provies a mechanism to flush and wait for that flush to
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* finish.
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*/
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return -EOPNOTSUPP;
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}
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int rvt_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
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int attr_mask, struct ib_qp_init_attr *init_attr)
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{
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return -EOPNOTSUPP;
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}
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67
drivers/infiniband/sw/rdmavt/qp.h
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67
drivers/infiniband/sw/rdmavt/qp.h
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@ -0,0 +1,67 @@
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#ifndef DEF_RVTQP_H
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#define DEF_RVTQP_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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#include <rdma/rdma_vt.h>
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struct rvt_qp {
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struct ib_qp *ibqp;
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/* Other stuff */
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};
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struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
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struct ib_qp_init_attr *init_attr,
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struct ib_udata *udata);
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int rvt_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
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int attr_mask, struct ib_udata *udata);
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int rvt_destroy_qp(struct ib_qp *ibqp);
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int rvt_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
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int attr_mask, struct ib_qp_init_attr *init_attr);
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#endif /* DEF_RVTQP_H */
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@ -220,6 +220,12 @@ int rvt_register_device(struct rvt_dev_info *rdi)
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CHECK_DRIVER_OVERRIDE(rdi, alloc_ucontext);
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CHECK_DRIVER_OVERRIDE(rdi, dealloc_ucontext);
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/* Queue Pairs */
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CHECK_DRIVER_OVERRIDE(rdi, create_qp);
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CHECK_DRIVER_OVERRIDE(rdi, modify_qp);
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CHECK_DRIVER_OVERRIDE(rdi, destroy_qp);
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CHECK_DRIVER_OVERRIDE(rdi, query_qp);
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/* DMA Operations */
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rdi->ibdev.dma_ops =
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rdi->ibdev.dma_ops ? : &rvt_default_dma_mapping_ops;
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@ -51,5 +51,6 @@
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#include <rdma/rdma_vt.h>
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#include "dma.h"
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#include "pd.h"
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#include "qp.h"
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#endif /* DEF_RDMAVT_H */
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