b5c1e0cb8d
Highlights: - Multiple verbs API updates - Support for RoCE, RDMA over ethernet All hardware drivers depending on the common infiniband stack has been updated aswell. Discussed with: np @ Sponsored by: Mellanox Technologies MFC after: 1 month
74 lines
2.7 KiB
C
74 lines
2.7 KiB
C
/*
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* Copyright (c) 2013, Mellanox Technologies. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#if !defined(PEER_MEM_H)
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#define PEER_MEM_H
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/errno.h>
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#include <linux/scatterlist.h>
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#include <linux/mutex.h>
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#define IB_PEER_MEMORY_NAME_MAX 64
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#define IB_PEER_MEMORY_VER_MAX 16
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struct peer_memory_client {
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char name[IB_PEER_MEMORY_NAME_MAX];
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char version[IB_PEER_MEMORY_VER_MAX];
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/* acquire return code: 1 mine, 0 - not mine */
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int (*acquire) (unsigned long addr, size_t size, void *peer_mem_private_data,
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char *peer_mem_name, void **client_context);
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int (*get_pages) (unsigned long addr,
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size_t size, int write, int force,
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struct sg_table *sg_head,
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void *client_context, void *core_context);
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int (*dma_map) (struct sg_table *sg_head, void *client_context,
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struct device *dma_device, int dmasync, int *nmap);
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int (*dma_unmap) (struct sg_table *sg_head, void *client_context,
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struct device *dma_device);
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void (*put_pages) (struct sg_table *sg_head, void *client_context);
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unsigned long (*get_page_size) (void *client_context);
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void (*release) (void *client_context);
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};
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typedef int (*invalidate_peer_memory)(void *reg_handle,
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void *core_context);
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void *ib_register_peer_memory_client(struct peer_memory_client *peer_client,
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invalidate_peer_memory *invalidate_callback);
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void ib_unregister_peer_memory_client(void *reg_handle);
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#endif
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