c9f432b7ba
Update the OFED Infiniband core to the version supplied in Linux
version 3.7.
The update to OFED is nearly all additional defines and functions
with the exception of the addition of additional parameters to
ib_register_device() and the reg_user_mr callback.
In addition the ibcore (Infiniband core) and ipoib (IP over Infiniband)
have both been made into completely loadable modules to facilitate
testing of the OFED stack in FreeBSD.
Finally the Mellanox Infiniband drivers are now updated to the
latest version shipping with Linux 3.7.
Submitted by: Mellanox FreeBSD driver team:
Oded Shanoon (odeds mellanox.com),
Meny Yossefi (menyy mellanox.com),
Orit Moskovich (oritm mellanox.com)
Approved by: re
127 lines
3.9 KiB
C
127 lines
3.9 KiB
C
/*
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* Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
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* Copyright (c) 2006, 2007 Cisco Systems, Inc. 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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#ifndef MLX4_ICM_H
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#define MLX4_ICM_H
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#include <linux/list.h>
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#include <linux/pci.h>
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#include <linux/mutex.h>
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#define MLX4_ICM_CHUNK_LEN \
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((256 - sizeof (struct list_head) - 2 * sizeof (int)) / \
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(sizeof (struct scatterlist)))
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enum {
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MLX4_ICM_PAGE_SHIFT = 12,
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MLX4_ICM_PAGE_SIZE = 1 << MLX4_ICM_PAGE_SHIFT,
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};
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struct mlx4_icm_chunk {
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struct list_head list;
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int npages;
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int nsg;
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struct scatterlist mem[MLX4_ICM_CHUNK_LEN];
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};
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struct mlx4_icm {
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struct list_head chunk_list;
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int refcount;
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};
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struct mlx4_icm_iter {
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struct mlx4_icm *icm;
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struct mlx4_icm_chunk *chunk;
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int page_idx;
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};
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struct mlx4_dev;
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struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages,
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gfp_t gfp_mask, int coherent);
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void mlx4_free_icm(struct mlx4_dev *dev, struct mlx4_icm *icm, int coherent);
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int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, u32 obj);
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void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, u32 obj);
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int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
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u32 start, u32 end);
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void mlx4_table_put_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
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u32 start, u32 end);
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int mlx4_init_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table,
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u64 virt, int obj_size, u32 nobj, int reserved,
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int use_lowmem, int use_coherent);
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void mlx4_cleanup_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table);
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void *mlx4_table_find(struct mlx4_icm_table *table, u32 obj, dma_addr_t *dma_handle);
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static inline void mlx4_icm_first(struct mlx4_icm *icm,
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struct mlx4_icm_iter *iter)
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{
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iter->icm = icm;
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iter->chunk = list_empty(&icm->chunk_list) ?
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NULL : list_entry(icm->chunk_list.next,
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struct mlx4_icm_chunk, list);
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iter->page_idx = 0;
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}
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static inline int mlx4_icm_last(struct mlx4_icm_iter *iter)
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{
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return !iter->chunk;
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}
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static inline void mlx4_icm_next(struct mlx4_icm_iter *iter)
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{
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if (++iter->page_idx >= iter->chunk->nsg) {
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if (iter->chunk->list.next == &iter->icm->chunk_list) {
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iter->chunk = NULL;
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return;
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}
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iter->chunk = list_entry(iter->chunk->list.next,
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struct mlx4_icm_chunk, list);
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iter->page_idx = 0;
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}
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}
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static inline dma_addr_t mlx4_icm_addr(struct mlx4_icm_iter *iter)
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{
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return sg_dma_address(&iter->chunk->mem[iter->page_idx]);
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}
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static inline unsigned long mlx4_icm_size(struct mlx4_icm_iter *iter)
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{
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return sg_dma_len(&iter->chunk->mem[iter->page_idx]);
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}
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#endif /* MLX4_ICM_H */
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