xref: /illumos-gate/usr/src/uts/common/io/bnxe/577xx/drivers/common/lm/fw/everest_iscsi_constants.h (revision d14abf155341d55053c76eeec58b787a456b753b)
1 #ifndef __EVEREST_ISCSI_CONSTANTS_H_
2 #define __EVEREST_ISCSI_CONSTANTS_H_
3 
4 /**
5 * This file defines HSI constants for the iSCSI flows
6 */
7 
8 /* Everest general configuartion */
9 #define ISCSI_NUM_OF_CQS					(8) /*MAX num of CQs*/
10 #define ISCSI_NUM_OF_EQS					(ISCSI_NUM_OF_CQS*MAX_NUM_OF_PF) /*per port*/
11 #define ISCSI_NUM_OF_CONNECTIONS			(128)
12 #define ISCSI_NUM_OF_CONNECTIONS_BOTH_PORTS	(ISCSI_NUM_OF_CONNECTIONS*MAX_NUM_OF_PF)
13 #define ISCSI_MAX_NUM_OF_PENDING_R2TS		(4)
14 #define ISCSI_R2TQE_SIZE					(8)
15 #define ISCSI_NUM_OF_CQ_TIMERS_PER_FUNC		(ISCSI_NUM_OF_CONNECTIONS*ISCSI_NUM_OF_CQS)
16 #define ISCSI_NUM_OF_CQ_TIMERS				(ISCSI_NUM_OF_CONNECTIONS*ISCSI_NUM_OF_CQS*MAX_NUM_OF_PF)
17 #define ISCSI_RQE_SIZE						(256)
18 #define ISCSI_CQE_SIZE						(64) /* must be equal to sizeof(iscsi_response_t), which is verified using a static assert */
19 #define ISCSI_GLOBAL_BUF_SIZE				(64)
20 
21 /* Slow path commands */
22 #define ISCSI_RAMROD_CMD_ID_UPDATE_CONN					(ISCSI_KCQE_OPCODE_UPDATE_CONN)
23 #define ISCSI_RAMROD_CMD_ID_INIT						(ISCSI_KCQE_OPCODE_INIT)
24 // for internal FW processing
25 #define ISCSI_CMD_ID_INIT_FW_CLEAN_TASK					(ISCSI_KCQE_OPCODE_FW_CLEAN_TASK)
26 
27 /* iSCSI states */
28 #define	ISCSI_STATE_SHIFT			(3)
29 #define ISCSI_STATES_MASK			(3)
30 #define ISCSI_INIT_STATE			(0 << ISCSI_STATE_SHIFT)
31 #define ISCSI_OFFLOAD_STATE			(1 << ISCSI_STATE_SHIFT)
32 #define ISCSI_ERROR_STATE			(2 << ISCSI_STATE_SHIFT)
33 #define ISCSI_TERMINATION_STATE		(3 << ISCSI_STATE_SHIFT)
34 
35 /* number of elements in the EQ that are reserved for slow path completions, catastrophic error
36    in case the EQ is (almost) full, and an end of page element */
37 #define RESERVED_ISCSI_EQ_ELEMENTS (MAX_RAMRODS_PER_PORT + 2)
38 
39 /* EQE Source types */
40 #define ISCSI_SOURCE_TYPE_NIC	(0)
41 #define ISCSI_SOURCE_TYPE_CID	(1)
42 
43 /* EQE Layer */
44 #define ISCSI_EVENT_LAYER_ULP				(0)
45 #define ISCSI_EVENT_LAYER_LLP				(1)
46 
47 /* EQE Completion Types */
48 #define ISCSI_EVENT_TYPE_FAST_PATH				(0)
49 #define ISCSI_EVENT_TYPE_SLOW_PATH				(1)
50 
51 /* the task context Pbl cache entry Index that marks PBL not cached */
52 #define ISCSI_PBL_NOT_CACHED (0xff)
53 #define ISCSI_PDU_HEADER_NOT_CACHED (0xff)
54 
55 
56 // OOO constants
57 #define ISCSI_L2_OOO_RX_BDS_THRSHLD_DEFAULT			(5) // threshold for number of available RX BDs
58 
59 #endif //__EVEREST_ISCSI_CONSTANTS_H_
60