fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / drivers / infiniband / hw / mthca / mthca_memfree.h

diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.h b/drivers/infiniband/hw/mthca/mthca_memfree.h
index b63ae66..6d42947 100644 (file)
--- a/drivers/infiniband/hw/mthca/mthca_memfree.h
+++ b/drivers/infiniband/hw/mthca/mthca_memfree.h
@@ -1,5 +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
@@ -37,13 +39,18 @@
 
 #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;
@@ -53,12 +60,16 @@ struct mthca_icm_chunk {
 
 struct mthca_icm {
        struct list_head chunk_list;
+       int              refcount;
 };
 
 struct mthca_icm_table {
        u64               virt;
        int               num_icm;
-       struct semaphore  sem;
+       int               num_obj;
+       int               obj_size;
+       int               lowmem;
+       struct mutex      mutex;
        struct mthca_icm *icm[0];
 };
 
@@ -71,14 +82,21 @@ struct mthca_icm_iter {
 struct mthca_dev;
 
 struct mthca_icm *mthca_alloc_icm(struct mthca_dev *dev, int npages,
-                                 unsigned int gfp_mask);
+                                 gfp_t gfp_mask);
 void mthca_free_icm(struct mthca_dev *dev, struct mthca_icm *icm);
 
 struct mthca_icm_table *mthca_alloc_icm_table(struct mthca_dev *dev,
-                                             u64 virt, unsigned size,
-                                             unsigned reserved,
+                                             u64 virt, int obj_size,
+                                             int nobj, int reserved,
                                              int use_lowmem);
 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);
+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)
@@ -119,4 +137,45 @@ static inline unsigned long mthca_icm_size(struct mthca_icm_iter *iter)
        return sg_dma_len(&iter->chunk->mem[iter->page_idx]);
 }
 
+struct mthca_db_page {
+       DECLARE_BITMAP(used, MTHCA_DB_REC_PER_PAGE);
+       __be64    *db_rec;
+       dma_addr_t mapping;
+};
+
+struct mthca_db_table {
+       int                   npages;
+       int                   max_group1;
+       int                   min_group2;
+       struct mthca_db_page *page;
+       struct mutex          mutex;
+};
+
+enum mthca_db_type {
+       MTHCA_DB_TYPE_INVALID   = 0x0,
+       MTHCA_DB_TYPE_CQ_SET_CI = 0x1,
+       MTHCA_DB_TYPE_CQ_ARM    = 0x2,
+       MTHCA_DB_TYPE_SQ        = 0x3,
+       MTHCA_DB_TYPE_RQ        = 0x4,
+       MTHCA_DB_TYPE_SRQ       = 0x5,
+       MTHCA_DB_TYPE_GROUP_SEP = 0x7
+};
+
+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 */