49 строки
1.4 KiB
C
49 строки
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Intel MIC Platform Software Stack (MPSS)
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*
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* Copyright(c) 2015 Intel Corporation.
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*
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* Intel SCIF driver.
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*/
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#ifndef SCIF_RMA_LIST_H
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#define SCIF_RMA_LIST_H
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/*
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* struct scif_rma_req - Self Registration list RMA Request query
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*
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* @out_window - Returns the window if found
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* @offset: Starting offset
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* @nr_bytes: number of bytes
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* @prot: protection requested i.e. read or write or both
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* @type: Specify single, partial or multiple windows
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* @head: Head of list on which to search
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* @va_for_temp: VA for searching temporary cached windows
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*/
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struct scif_rma_req {
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struct scif_window **out_window;
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union {
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s64 offset;
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unsigned long va_for_temp;
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};
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size_t nr_bytes;
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int prot;
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enum scif_window_type type;
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struct list_head *head;
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};
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/* Insert */
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void scif_insert_window(struct scif_window *window, struct list_head *head);
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void scif_insert_tcw(struct scif_window *window,
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struct list_head *head);
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/* Query */
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int scif_query_window(struct scif_rma_req *request);
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int scif_query_tcw(struct scif_endpt *ep, struct scif_rma_req *request);
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/* Called from close to unregister all self windows */
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int scif_unregister_all_windows(scif_epd_t epd);
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void scif_unmap_all_windows(scif_epd_t epd);
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/* Traverse list and unregister */
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int scif_rma_list_unregister(struct scif_window *window, s64 offset,
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int nr_pages);
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#endif /* SCIF_RMA_LIST_H */
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