diff options
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_memfree.h')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_memfree.h | 35 |
1 files changed, 18 insertions, 17 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.h b/drivers/infiniband/hw/mthca/mthca_memfree.h index 4761d844cb5..da9b8f9b884 100644 --- a/drivers/infiniband/hw/mthca/mthca_memfree.h +++ b/drivers/infiniband/hw/mthca/mthca_memfree.h @@ -1,6 +1,7 @@ /* * 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 @@ -29,22 +30,24 @@ * 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. - * - * $Id$ */ #ifndef MTHCA_MEMFREE_H #define MTHCA_MEMFREE_H #include <linux/list.h> -#include <linux/pci.h> - -#include <asm/semaphore.h> +#include <linux/mutex.h> #define MTHCA_ICM_CHUNK_LEN \ ((256 - sizeof (struct list_head) - 2 * sizeof (int)) / \ (sizeof (struct scatterlist))) +enum { + MTHCA_ICM_PAGE_SHIFT = 12, + MTHCA_ICM_PAGE_SIZE = 1 << MTHCA_ICM_PAGE_SHIFT, + MTHCA_DB_REC_PER_PAGE = MTHCA_ICM_PAGE_SIZE / 8 +}; + struct mthca_icm_chunk { struct list_head list; int npages; @@ -63,7 +66,8 @@ struct mthca_icm_table { int num_obj; int obj_size; int lowmem; - struct semaphore mutex; + int coherent; + struct mutex mutex; struct mthca_icm *icm[0]; }; @@ -76,17 +80,17 @@ struct mthca_icm_iter { struct mthca_dev; struct mthca_icm *mthca_alloc_icm(struct mthca_dev *dev, int npages, - unsigned int gfp_mask); -void mthca_free_icm(struct mthca_dev *dev, struct mthca_icm *icm); + 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_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); +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, @@ -131,13 +135,9 @@ static inline unsigned long mthca_icm_size(struct mthca_icm_iter *iter) return sg_dma_len(&iter->chunk->mem[iter->page_idx]); } -enum { - MTHCA_DB_REC_PER_PAGE = 4096 / 8 -}; - struct mthca_db_page { DECLARE_BITMAP(used, MTHCA_DB_REC_PER_PAGE); - u64 *db_rec; + __be64 *db_rec; dma_addr_t mapping; }; @@ -146,7 +146,7 @@ struct mthca_db_table { int max_group1; int min_group2; struct mthca_db_page *page; - struct semaphore mutex; + struct mutex mutex; }; enum mthca_db_type { @@ -172,7 +172,8 @@ void mthca_cleanup_user_db_tab(struct mthca_dev *dev, struct mthca_uar *uar, 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, int type, u32 qn, u32 **db); +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 */ |