1 #ifndef _GPXE_IB_SRP_H 2 #define _GPXE_IB_SRP_H 3 4 /** @file 5 * 6 * SCSI RDMA Protocol over Infiniband 7 * 8 */ 9 10 FILE_LICENCE ( BSD2 ); 11 12 #include <stdint.h> 13 #include <gpxe/infiniband.h> 14 #include <gpxe/srp.h> 15 16 /** SRP initiator port identifier for Infiniband */ 17 struct ib_srp_initiator_port_id { 18 /** Identifier extension */ 19 struct ib_gid_half id_ext; 20 /** IB channel adapter GUID */ 21 struct ib_gid_half hca_guid; 22 } __attribute__ (( packed )); 23 24 /** SRP target port identifier for Infiniband */ 25 struct ib_srp_target_port_id { 26 /** Identifier extension */ 27 struct ib_gid_half id_ext; 28 /** I/O controller GUID */ 29 struct ib_gid_half ioc_guid; 30 } __attribute__ (( packed )); 31 32 /** 33 * Get Infiniband-specific initiator port ID 34 * 35 * @v port_ids SRP port IDs 36 * @ret initiator_port_id Infiniband-specific initiator port ID 37 */ 38 static inline __always_inline struct ib_srp_initiator_port_id * 39 ib_srp_initiator_port_id ( struct srp_port_ids *port_ids ) { 40 return ( ( struct ib_srp_initiator_port_id * ) &port_ids->initiator ); 41 } 42 43 /** 44 * Get Infiniband-specific target port ID 45 * 46 * @v port_ids SRP port IDs 47 * @ret target_port_id Infiniband-specific target port ID 48 */ 49 static inline __always_inline struct ib_srp_target_port_id * 50 ib_srp_target_port_id ( struct srp_port_ids *port_ids ) { 51 return ( ( struct ib_srp_target_port_id * ) &port_ids->target ); 52 } 53 54 /** Infiniband-specific SRP parameters */ 55 struct ib_srp_parameters { 56 /** Source GID */ 57 struct ib_gid sgid; 58 /** Destination GID */ 59 struct ib_gid dgid; 60 /** Service ID */ 61 struct ib_gid_half service_id; 62 /** Partition key */ 63 uint16_t pkey; 64 }; 65 66 /** 67 * Get Infiniband-specific transport parameters 68 * 69 * @v srp SRP device 70 * @ret ib_params Infiniband-specific transport parameters 71 */ 72 static inline __always_inline struct ib_srp_parameters * 73 ib_srp_params ( struct srp_device *srp ) { 74 return srp_transport_priv ( srp ); 75 } 76 77 extern struct srp_transport_type ib_srp_transport; 78 79 #endif /* _GPXE_IB_SRP_H */ 80
