diff options
Diffstat (limited to 'drivers/net/mlx4/icm.h')
| -rw-r--r-- | drivers/net/mlx4/icm.h | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/drivers/net/mlx4/icm.h b/drivers/net/mlx4/icm.h deleted file mode 100644 index b10c07a..0000000 --- a/drivers/net/mlx4/icm.h +++ /dev/null @@ -1,134 +0,0 @@ -/* - * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved. - * Copyright (c) 2006, 2007 Cisco Systems, Inc. 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 MLX4_ICM_H -#define MLX4_ICM_H - -#include <linux/list.h> -#include <linux/pci.h> -#include <linux/mutex.h> - -#define MLX4_ICM_CHUNK_LEN \ - ((256 - sizeof (struct list_head) - 2 * sizeof (int)) / \ - (sizeof (struct scatterlist))) - -enum { - MLX4_ICM_PAGE_SHIFT = 12, - MLX4_ICM_PAGE_SIZE = 1 << MLX4_ICM_PAGE_SHIFT, -}; - -struct mlx4_icm_chunk { - struct list_head list; - int npages; - int nsg; - struct scatterlist mem[MLX4_ICM_CHUNK_LEN]; -}; - -struct mlx4_icm { - struct list_head chunk_list; - int refcount; -}; - -struct mlx4_icm_iter { - struct mlx4_icm *icm; - struct mlx4_icm_chunk *chunk; - int page_idx; -}; - -struct mlx4_dev; - -struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages, - gfp_t gfp_mask, int coherent); -void mlx4_free_icm(struct mlx4_dev *dev, struct mlx4_icm *icm, int coherent); - -int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj); -void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj); -int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table, - int start, int end); -void mlx4_table_put_range(struct mlx4_dev *dev, struct mlx4_icm_table *table, - int start, int end); -int mlx4_init_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table, - u64 virt, int obj_size, int nobj, int reserved, - int use_lowmem, int use_coherent); -void mlx4_cleanup_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table); -int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj); -void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj); -void *mlx4_table_find(struct mlx4_icm_table *table, int obj, dma_addr_t *dma_handle); -int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table, - int start, int end); -void mlx4_table_put_range(struct mlx4_dev *dev, struct mlx4_icm_table *table, - int start, int end); - -static inline void mlx4_icm_first(struct mlx4_icm *icm, - struct mlx4_icm_iter *iter) -{ - iter->icm = icm; - iter->chunk = list_empty(&icm->chunk_list) ? - NULL : list_entry(icm->chunk_list.next, - struct mlx4_icm_chunk, list); - iter->page_idx = 0; -} - -static inline int mlx4_icm_last(struct mlx4_icm_iter *iter) -{ - return !iter->chunk; -} - -static inline void mlx4_icm_next(struct mlx4_icm_iter *iter) -{ - if (++iter->page_idx >= iter->chunk->nsg) { - if (iter->chunk->list.next == &iter->icm->chunk_list) { - iter->chunk = NULL; - return; - } - - iter->chunk = list_entry(iter->chunk->list.next, - struct mlx4_icm_chunk, list); - iter->page_idx = 0; - } -} - -static inline dma_addr_t mlx4_icm_addr(struct mlx4_icm_iter *iter) -{ - return sg_dma_address(&iter->chunk->mem[iter->page_idx]); -} - -static inline unsigned long mlx4_icm_size(struct mlx4_icm_iter *iter) -{ - return sg_dma_len(&iter->chunk->mem[iter->page_idx]); -} - -int mlx4_MAP_ICM_AUX(struct mlx4_dev *dev, struct mlx4_icm *icm); -int mlx4_UNMAP_ICM_AUX(struct mlx4_dev *dev); - -#endif /* MLX4_ICM_H */ |