include/rdma/rdma_netlink.h

   1 #ifndef _RDMA_NETLINK_H
   2 #define _RDMA_NETLINK_H
   3
   4 #include <linux/types.h>
   5
   6 enum {
   7         RDMA_NL_RDMA_CM = 1
   8 };
   9
  10 #define RDMA_NL_GET_CLIENT(type) ((type & (((1 << 6) - 1) << 10)) >> 10)
  11 #define RDMA_NL_GET_OP(type) (type & ((1 << 10) - 1))
  12 #define RDMA_NL_GET_TYPE(client, op) ((client << 10) + op)
  13
  14 enum {
  15         RDMA_NL_RDMA_CM_ID_STATS = 0,
  16         RDMA_NL_RDMA_CM_NUM_OPS
  17 };
  18
  19 enum {
  20         RDMA_NL_RDMA_CM_ATTR_SRC_ADDR = 1,
  21         RDMA_NL_RDMA_CM_ATTR_DST_ADDR,
  22         RDMA_NL_RDMA_CM_NUM_ATTR,
  23 };
  24
  25 struct rdma_cm_id_stats {
  26         __u32   qp_num;
  27         __u32   bound_dev_if;
  28         __u32   port_space;
  29         __s32   pid;
  30         __u8    cm_state;
  31         __u8    node_type;
  32         __u8    port_num;
  33         __u8    qp_type;
  34 };
  35
  36 #ifdef __KERNEL__
  37
  38 #include <linux/netlink.h>
  39
  40 struct ibnl_client_cbs {
  41         int (*dump)(struct sk_buff *skb, struct netlink_callback *nlcb);
  42 };
  43
  44 int ibnl_init(void);
  45 void ibnl_cleanup(void);
  46
  47 /**
  48  * Add a a client to the list of IB netlink exporters.
  49  * @index: Index of the added client
  50  * @nops: Number of supported ops by the added client.
  51  * @cb_table: A table for op->callback
  52  *
  53  * Returns 0 on success or a negative error code.
  54  */
  55 int ibnl_add_client(int index, int nops,
  56                     const struct ibnl_client_cbs cb_table[]);
  57
  58 /**
  59  * Remove a client from IB netlink.
  60  * @index: Index of the removed IB client.
  61  *
  62  * Returns 0 on success or a negative error code.
  63  */
  64 int ibnl_remove_client(int index);
  65
  66 /**
  67  * Put a new message in a supplied skb.
  68  * @skb: The netlink skb.
  69  * @nlh: Pointer to put the header of the new netlink message.
  70  * @seq: The message sequence number.
  71  * @len: The requested message length to allocate.
  72  * @client: Calling IB netlink client.
  73  * @op: message content op.
  74  * Returns the allocated buffer on success and NULL on failure.
  75  */
  76 void *ibnl_put_msg(struct sk_buff *skb, struct nlmsghdr **nlh, int seq,
  77                    int len, int client, int op);
  78 /**
  79  * Put a new attribute in a supplied skb.
  80  * @skb: The netlink skb.
  81  * @nlh: Header of the netlink message to append the attribute to.
  82  * @len: The length of the attribute data.
  83  * @data: The attribute data to put.
  84  * @type: The attribute type.
  85  * Returns the 0 and a negative error code on failure.
  86  */
  87 int ibnl_put_attr(struct sk_buff *skb, struct nlmsghdr *nlh,
  88                   int len, void *data, int type);
  89
  90 #endif /* __KERNEL__ */
  91
  92 #endif /* _RDMA_NETLINK_H */