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57 * @brief This field defines the SCU format of an unsolicited frame (UF). A
58 * UF is a frame received by the SCU for which there is no known
59 * corresponding task context (TC).
62 #ifndef _SCU_UNSOLICITED_FRAME_H_
63 #define _SCU_UNSOLICITED_FRAME_H_
69 #include <dev/isci/scil/sci_types.h>
72 * This constant defines the number of DWORDS found the unsolicited frame
75 #define SCU_UNSOLICITED_FRAME_HEADER_DATA_DWORDS 15
78 * @struct SCU_UNSOLICITED_FRAME_HEADER
80 * This structure delineates the format of an unsolicited frame header.
81 * The first DWORD are UF attributes defined by the silicon architecture.
82 * The data depicts actual header information received on the link.
84 typedef struct SCU_UNSOLICITED_FRAME_HEADER
87 * This field indicates if there is an Initiator Index Table entry with
88 * which this header is associated.
93 * This field simply indicates the protocol type (i.e. SSP, STP, SMP).
95 U32 protocol_type : 3;
98 * This field indicates if the frame is an address frame (IAF or OAF)
99 * or if it is a information unit frame.
101 U32 is_address_frame : 1;
104 * This field simply indicates the connection rate at which the frame
107 U32 connection_rate : 4;
112 * This field represents the actual header data received on the link.
114 U32 data[SCU_UNSOLICITED_FRAME_HEADER_DATA_DWORDS];
116 } SCU_UNSOLICITED_FRAME_HEADER_T;
120 #endif // __cplusplus
122 #endif // _SCU_UNSOLICITED_FRAME_H_