#ifndef __EVEREST_ISCSI_CONSTANTS_H_
#define __EVEREST_ISCSI_CONSTANTS_H_

/**
* This file defines HSI constants for the iSCSI flows
*/

/* Everest general configuartion */
#define ISCSI_NUM_OF_CQS                                        (8) /*MAX num of CQs*/
#define ISCSI_NUM_OF_EQS                                        (ISCSI_NUM_OF_CQS*MAX_NUM_OF_PF) /*per port*/
#define ISCSI_NUM_OF_CONNECTIONS                        (128)
#define ISCSI_NUM_OF_CONNECTIONS_BOTH_PORTS     (ISCSI_NUM_OF_CONNECTIONS*MAX_NUM_OF_PF)
#define ISCSI_MAX_NUM_OF_PENDING_R2TS           (4)
#define ISCSI_R2TQE_SIZE                                        (8)
#define ISCSI_NUM_OF_CQ_TIMERS_PER_FUNC         (ISCSI_NUM_OF_CONNECTIONS*ISCSI_NUM_OF_CQS)
#define ISCSI_NUM_OF_CQ_TIMERS                          (ISCSI_NUM_OF_CONNECTIONS*ISCSI_NUM_OF_CQS*MAX_NUM_OF_PF) 
#define ISCSI_RQE_SIZE                                          (256)
#define ISCSI_CQE_SIZE                                          (64) /* must be equal to sizeof(iscsi_response_t), which is verified using a static assert */
#define ISCSI_GLOBAL_BUF_SIZE                           (64)

/* Slow path commands */
#define ISCSI_RAMROD_CMD_ID_UPDATE_CONN                                 (ISCSI_KCQE_OPCODE_UPDATE_CONN)
#define ISCSI_RAMROD_CMD_ID_INIT                                                (ISCSI_KCQE_OPCODE_INIT)
// for internal FW processing
#define ISCSI_CMD_ID_INIT_FW_CLEAN_TASK                                 (ISCSI_KCQE_OPCODE_FW_CLEAN_TASK)

/* iSCSI states */
#define ISCSI_STATE_SHIFT                       (3)
#define ISCSI_STATES_MASK                       (3)
#define ISCSI_INIT_STATE                        (0 << ISCSI_STATE_SHIFT)
#define ISCSI_OFFLOAD_STATE                     (1 << ISCSI_STATE_SHIFT)
#define ISCSI_ERROR_STATE                       (2 << ISCSI_STATE_SHIFT)
#define ISCSI_TERMINATION_STATE         (3 << ISCSI_STATE_SHIFT)

/* number of elements in the EQ that are reserved for slow path completions, catastrophic error
   in case the EQ is (almost) full, and an end of page element */
#define RESERVED_ISCSI_EQ_ELEMENTS (MAX_RAMRODS_PER_PORT + 2)

/* EQE Source types */
#define ISCSI_SOURCE_TYPE_NIC   (0)
#define ISCSI_SOURCE_TYPE_CID   (1)

/* EQE Layer */
#define ISCSI_EVENT_LAYER_ULP                           (0)
#define ISCSI_EVENT_LAYER_LLP                           (1)

/* EQE Completion Types */
#define ISCSI_EVENT_TYPE_FAST_PATH                              (0)
#define ISCSI_EVENT_TYPE_SLOW_PATH                              (1)

/* the task context Pbl cache entry Index that marks PBL not cached */
#define ISCSI_PBL_NOT_CACHED (0xff) 
#define ISCSI_PDU_HEADER_NOT_CACHED (0xff)


// OOO constants
#define ISCSI_L2_OOO_RX_BDS_THRSHLD_DEFAULT                     (5) // threshold for number of available RX BDs 

#endif //__EVEREST_ISCSI_CONSTANTS_H_