/* * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. * Copyright (c) 2005 Cisco Systems. All rights reserved. * Copyright (c) 2005 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * 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. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef MTHCA_MEMFREE_H #define MTHCA_MEMFREE_H #include <linux/list.h> #include <linux/mutex.h> #define MTHCA_ICM_CHUNK_LEN … enum { … }; struct mthca_icm_chunk { … }; struct mthca_icm { … }; struct mthca_icm_table { … }; struct mthca_icm_iter { … }; struct mthca_dev; struct mthca_icm *mthca_alloc_icm(struct mthca_dev *dev, int npages, gfp_t gfp_mask, int coherent); void mthca_free_icm(struct mthca_dev *dev, struct mthca_icm *icm, int coherent); struct mthca_icm_table *mthca_alloc_icm_table(struct mthca_dev *dev, u64 virt, int obj_size, int nobj, int reserved, int use_lowmem, int use_coherent); void mthca_free_icm_table(struct mthca_dev *dev, struct mthca_icm_table *table); int mthca_table_get(struct mthca_dev *dev, struct mthca_icm_table *table, int obj); void mthca_table_put(struct mthca_dev *dev, struct mthca_icm_table *table, int obj); void *mthca_table_find(struct mthca_icm_table *table, int obj, dma_addr_t *dma_handle); int mthca_table_get_range(struct mthca_dev *dev, struct mthca_icm_table *table, int start, int end); void mthca_table_put_range(struct mthca_dev *dev, struct mthca_icm_table *table, int start, int end); static inline void mthca_icm_first(struct mthca_icm *icm, struct mthca_icm_iter *iter) { … } static inline int mthca_icm_last(struct mthca_icm_iter *iter) { … } static inline void mthca_icm_next(struct mthca_icm_iter *iter) { … } static inline dma_addr_t mthca_icm_addr(struct mthca_icm_iter *iter) { … } static inline unsigned long mthca_icm_size(struct mthca_icm_iter *iter) { … } struct mthca_db_page { … }; struct mthca_db_table { … }; enum mthca_db_type { … }; struct mthca_user_db_table; struct mthca_uar; int mthca_map_user_db(struct mthca_dev *dev, struct mthca_uar *uar, struct mthca_user_db_table *db_tab, int index, u64 uaddr); void mthca_unmap_user_db(struct mthca_dev *dev, struct mthca_uar *uar, struct mthca_user_db_table *db_tab, int index); struct mthca_user_db_table *mthca_init_user_db_tab(struct mthca_dev *dev); void mthca_cleanup_user_db_tab(struct mthca_dev *dev, struct mthca_uar *uar, struct mthca_user_db_table *db_tab); int mthca_init_db_tab(struct mthca_dev *dev); void mthca_cleanup_db_tab(struct mthca_dev *dev); int mthca_alloc_db(struct mthca_dev *dev, enum mthca_db_type type, u32 qn, __be32 **db); void mthca_free_db(struct mthca_dev *dev, int type, int db_index); #endif /* MTHCA_MEMFREE_H */
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