Commit b518d3e6 authored by Dennis Dalessandro's avatar Dennis Dalessandro Committed by Doug Ledford

IB/rdmavt: Add queue pair function stubs

Adds the stubs for create, modify, destroy and query functions for queue
pairs.
Reviewed-by: default avatarMike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: default avatarIra Weiny <ira.weiny@intel.com>
Signed-off-by: default avatarDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent c4ed7d8b
...@@ -7,5 +7,5 @@ ...@@ -7,5 +7,5 @@
# #
obj-$(CONFIG_INFINIBAND_RDMAVT) += rdmavt.o obj-$(CONFIG_INFINIBAND_RDMAVT) += rdmavt.o
rdmavt-y := vt.o dma.o pd.o rdmavt-y := vt.o dma.o pd.o qp.o
/*
* 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;
}
#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 */
...@@ -220,6 +220,12 @@ int rvt_register_device(struct rvt_dev_info *rdi) ...@@ -220,6 +220,12 @@ int rvt_register_device(struct rvt_dev_info *rdi)
CHECK_DRIVER_OVERRIDE(rdi, alloc_ucontext); CHECK_DRIVER_OVERRIDE(rdi, alloc_ucontext);
CHECK_DRIVER_OVERRIDE(rdi, dealloc_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 */ /* DMA Operations */
rdi->ibdev.dma_ops = rdi->ibdev.dma_ops =
rdi->ibdev.dma_ops ? : &rvt_default_dma_mapping_ops; rdi->ibdev.dma_ops ? : &rvt_default_dma_mapping_ops;
......
...@@ -51,5 +51,6 @@ ...@@ -51,5 +51,6 @@
#include <rdma/rdma_vt.h> #include <rdma/rdma_vt.h>
#include "dma.h" #include "dma.h"
#include "pd.h" #include "pd.h"
#include "qp.h"
#endif /* DEF_RDMAVT_H */ #endif /* DEF_RDMAVT_H */
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