sys/ofed/include/rdma/ib_peer_mem.h

   1 #if !defined(IB_PEER_MEM_H)
   2 #define IB_PEER_MEM_H
   3
   4 #include <rdma/peer_mem.h>
   5
   6
   7 struct invalidation_ctx;
   8 struct ib_ucontext;
   9
  10 struct ib_peer_memory_statistics {
  11         unsigned long num_alloc_mrs;
  12         unsigned long num_dealloc_mrs;
  13         unsigned long num_reg_pages;
  14         unsigned long num_dereg_pages;
  15         unsigned long num_free_callbacks;
  16 };
  17
  18 struct ib_peer_memory_client {
  19         const struct peer_memory_client *peer_mem;
  20
  21         struct list_head        core_peer_list;
  22         struct list_head    core_ticket_list;
  23         unsigned long last_ticket;
  24 #ifdef __FreeBSD__
  25         int holdcount;
  26         int needwakeup;
  27         struct cv peer_cv;
  28 #else
  29         struct srcu_struct peer_srcu;
  30 #endif
  31         struct mutex lock;
  32         struct kobject *kobj;
  33         struct attribute_group peer_mem_attr_group;
  34         struct ib_peer_memory_statistics stats;
  35 };
  36
  37 struct core_ticket {
  38         unsigned long key;
  39         void *context;
  40         struct list_head   ticket_list;
  41 };
  42
  43 struct ib_peer_memory_client *ib_get_peer_client(struct ib_ucontext *context, unsigned long addr,
  44                                                   size_t size, void **peer_client_context,
  45                                                   int *srcu_key);
  46
  47 void ib_put_peer_client(struct ib_peer_memory_client *ib_peer_client,
  48                                 void *peer_client_context,
  49                                 int srcu_key);
  50
  51 unsigned long ib_peer_insert_context(struct ib_peer_memory_client *ib_peer_client,
  52                                 void *context);
  53 int ib_peer_remove_context(struct ib_peer_memory_client *ib_peer_client,
  54                                 unsigned long key);
  55 struct core_ticket *ib_peer_search_context(struct ib_peer_memory_client *ib_peer_client,
  56                                                 unsigned long key);
  57 #endif
  58
  59