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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/include/rdma/rdma_netlink.h
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#ifndef _RDMA_NETLINK_H

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#define _RDMA_NETLINK_H

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#include <linux/types.h>

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enum {

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	RDMA_NL_RDMA_CM = 1

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};

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#define RDMA_NL_GET_CLIENT(type) ((type & (((1 << 6) - 1) << 10)) >> 10)

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#define RDMA_NL_GET_OP(type) (type & ((1 << 10) - 1))

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#define RDMA_NL_GET_TYPE(client, op) ((client << 10) + op)

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enum {

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	RDMA_NL_RDMA_CM_ID_STATS = 0,

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	RDMA_NL_RDMA_CM_NUM_OPS

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};

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enum {

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	RDMA_NL_RDMA_CM_ATTR_SRC_ADDR = 1,

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	RDMA_NL_RDMA_CM_ATTR_DST_ADDR,

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	RDMA_NL_RDMA_CM_NUM_ATTR,

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};

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struct rdma_cm_id_stats {

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	__u32	qp_num;

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	__u32	bound_dev_if;

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	__u32	port_space;

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	__s32	pid;

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	__u8	cm_state;

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	__u8	node_type;

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	__u8	port_num;

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	__u8	qp_type;

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};

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#ifdef __KERNEL__

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#include <linux/netlink.h>

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struct ibnl_client_cbs {

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	int (*dump)(struct sk_buff *skb, struct netlink_callback *nlcb);

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};

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int ibnl_init(void);

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void ibnl_cleanup(void);

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/**

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 * Add a a client to the list of IB netlink exporters.

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 * @index: Index of the added client

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 * @nops: Number of supported ops by the added client.

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 * @cb_table: A table for op->callback

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 *

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 * Returns 0 on success or a negative error code.

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 */

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int ibnl_add_client(int index, int nops,

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		    const struct ibnl_client_cbs cb_table[]);

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/**

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 * Remove a client from IB netlink.

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 * @index: Index of the removed IB client.

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 *

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 * Returns 0 on success or a negative error code.

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 */

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int ibnl_remove_client(int index);

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/**

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 * Put a new message in a supplied skb.

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 * @skb: The netlink skb.

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 * @nlh: Pointer to put the header of the new netlink message.

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 * @seq: The message sequence number.

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 * @len: The requested message length to allocate.

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 * @client: Calling IB netlink client.

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 * @op: message content op.

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 * Returns the allocated buffer on success and NULL on failure.

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 */

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void *ibnl_put_msg(struct sk_buff *skb, struct nlmsghdr **nlh, int seq,

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		   int len, int client, int op);

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/**

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 * Put a new attribute in a supplied skb.

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 * @skb: The netlink skb.

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 * @nlh: Header of the netlink message to append the attribute to.

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 * @len: The length of the attribute data.

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 * @data: The attribute data to put.

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 * @type: The attribute type.

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 * Returns the 0 and a negative error code on failure.

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 */

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int ibnl_put_attr(struct sk_buff *skb, struct nlmsghdr *nlh,

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		  int len, void *data, int type);

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#endif /* __KERNEL__ */

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#endif /* _RDMA_NETLINK_H */

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