LXR linux/include/rdma/rdma

   1#ifndef _RDMA_NETLINK_H
   2#define _RDMA_NETLINK_H
   3
   4
   5#include <linux/netlink.h>
   6#include <uapi/rdma/rdma_netlink.h>
   7
   8struct ibnl_client_cbs {
   9        int (*dump)(struct sk_buff *skb, struct netlink_callback *nlcb);
  10        struct module *module;
  11};
  12
  13/**
  14 * Add a a client to the list of IB netlink exporters.
  15 * @index: Index of the added client
  16 * @nops: Number of supported ops by the added client.
  17 * @cb_table: A table for op->callback
  18 *
  19 * Returns 0 on success or a negative error code.
  20 */
  21int ibnl_add_client(int index, int nops,
  22                    const struct ibnl_client_cbs cb_table[]);
  23
  24/**
  25 * Remove a client from IB netlink.
  26 * @index: Index of the removed IB client.
  27 *
  28 * Returns 0 on success or a negative error code.
  29 */
  30int ibnl_remove_client(int index);
  31
  32/**
  33 * Put a new message in a supplied skb.
  34 * @skb: The netlink skb.
  35 * @nlh: Pointer to put the header of the new netlink message.
  36 * @seq: The message sequence number.
  37 * @len: The requested message length to allocate.
  38 * @client: Calling IB netlink client.
  39 * @op: message content op.
  40 * Returns the allocated buffer on success and NULL on failure.
  41 */
  42void *ibnl_put_msg(struct sk_buff *skb, struct nlmsghdr **nlh, int seq,
  43                   int len, int client, int op, int flags);
  44/**
  45 * Put a new attribute in a supplied skb.
  46 * @skb: The netlink skb.
  47 * @nlh: Header of the netlink message to append the attribute to.
  48 * @len: The length of the attribute data.
  49 * @data: The attribute data to put.
  50 * @type: The attribute type.
  51 * Returns the 0 and a negative error code on failure.
  52 */
  53int ibnl_put_attr(struct sk_buff *skb, struct nlmsghdr *nlh,
  54                  int len, void *data, int type);
  55
  56/**
  57 * Send the supplied skb to a specific userspace PID.
  58 * @skb: The netlink skb
  59 * @nlh: Header of the netlink message to send
  60 * @pid: Userspace netlink process ID
  61 * Returns 0 on success or a negative error code.
  62 */
  63int ibnl_unicast(struct sk_buff *skb, struct nlmsghdr *nlh,
  64                        __u32 pid);
  65
  66/**
  67 * Send the supplied skb to a netlink group.
  68 * @skb: The netlink skb
  69 * @nlh: Header of the netlink message to send
  70 * @group: Netlink group ID
  71 * @flags: allocation flags
  72 * Returns 0 on success or a negative error code.
  73 */
  74int ibnl_multicast(struct sk_buff *skb, struct nlmsghdr *nlh,
  75                        unsigned int group, gfp_t flags);
  76
  77#endif /* _RDMA_NETLINK_H */
  78