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1 #ifndef _GPXE_IB_PATHREC_H
2 #define _GPXE_IB_PATHREC_H
3 
4 /** @file
5  *
6  * Infiniband path records
7  *
8  */
9 
10 FILE_LICENCE ( GPL2_OR_LATER );
11 
12 #include <gpxe/infiniband.h>
13 
14 struct ib_mad_transaction;
15 struct ib_path;
16 
17 /** Infiniband path operations */
18 struct ib_path_operations {
19 	/** Handle path transaction completion
20 	 *
21 	 * @v ibdev		Infiniband device
22 	 * @v path		Path
23 	 * @v rc		Status code
24 	 * @v av		Address vector, or NULL on error
25 	 */
26 	void ( * complete ) ( struct ib_device *ibdev,
27 			      struct ib_path *path, int rc,
28 			      struct ib_address_vector *av );
29 };
30 
31 /** An Infiniband path */
32 struct ib_path {
33 	/** Infiniband device */
34 	struct ib_device *ibdev;
35 	/** Address vector */
36 	struct ib_address_vector av;
37 	/** Management transaction */
38 	struct ib_mad_transaction *madx;
39 	/** Path operations */
40 	struct ib_path_operations *op;
41 	/** Owner private data */
42 	void *owner_priv;
43 };
44 
45 /**
46  * Set Infiniband path owner-private data
47  *
48  * @v path		Path
49  * @v priv		Private data
50  */
51 static inline __always_inline void
ib_path_set_ownerdata(struct ib_path * path,void * priv)52 ib_path_set_ownerdata ( struct ib_path *path, void *priv ) {
53 	path->owner_priv = priv;
54 }
55 
56 /**
57  * Get Infiniband path owner-private data
58  *
59  * @v path		Path
60  * @ret priv		Private data
61  */
62 static inline __always_inline void *
ib_path_get_ownerdata(struct ib_path * path)63 ib_path_get_ownerdata ( struct ib_path *path ) {
64 	return path->owner_priv;
65 }
66 
67 extern struct ib_path *
68 ib_create_path ( struct ib_device *ibdev, struct ib_address_vector *av,
69 		 struct ib_path_operations *op );
70 extern void ib_destroy_path ( struct ib_device *ibdev,
71 			      struct ib_path *path );
72 
73 extern int ib_resolve_path ( struct ib_device *ibdev,
74 			     struct ib_address_vector *av );
75 
76 #endif /* _GPXE_IB_PATHREC_H */
77