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1/* 57xx_iscsi_constants.h: Broadcom NetXtreme II iSCSI HSI
2 *
3 * Copyright (c) 2006 - 2011 Broadcom Corporation
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation.
8 *
9 * Written by: Anil Veerabhadrappa (anilgv@broadcom.com)
10 * Maintained by: Eddie Wai (eddie.wai@broadcom.com)
11 */
12#ifndef __57XX_ISCSI_CONSTANTS_H_
13#define __57XX_ISCSI_CONSTANTS_H_
14
15/**
16* This file defines HSI constants for the iSCSI flows
17*/
18
19/* iSCSI request op codes */
20#define ISCSI_OPCODE_CLEANUP_REQUEST (7)
21
22/* iSCSI response/messages op codes */
23#define ISCSI_OPCODE_CLEANUP_RESPONSE (0x27)
24#define ISCSI_OPCODE_NOPOUT_LOCAL_COMPLETION (0)
25
26/* iSCSI task types */
27#define ISCSI_TASK_TYPE_READ (0)
28#define ISCSI_TASK_TYPE_WRITE (1)
29#define ISCSI_TASK_TYPE_MPATH (2)
30
31/* initial CQ sequence numbers */
32#define ISCSI_INITIAL_SN (1)
33
34/* KWQ (kernel work queue) layer codes */
35#define ISCSI_KWQE_LAYER_CODE (6)
36
37/* KWQ (kernel work queue) request op codes */
38#define ISCSI_KWQE_OPCODE_OFFLOAD_CONN1 (0)
39#define ISCSI_KWQE_OPCODE_OFFLOAD_CONN2 (1)
40#define ISCSI_KWQE_OPCODE_UPDATE_CONN (2)
41#define ISCSI_KWQE_OPCODE_DESTROY_CONN (3)
42#define ISCSI_KWQE_OPCODE_INIT1 (4)
43#define ISCSI_KWQE_OPCODE_INIT2 (5)
44
45/* KCQ (kernel completion queue) response op codes */
46#define ISCSI_KCQE_OPCODE_OFFLOAD_CONN (0x10)
47#define ISCSI_KCQE_OPCODE_UPDATE_CONN (0x12)
48#define ISCSI_KCQE_OPCODE_DESTROY_CONN (0x13)
49#define ISCSI_KCQE_OPCODE_INIT (0x14)
50#define ISCSI_KCQE_OPCODE_FW_CLEAN_TASK (0x15)
51#define ISCSI_KCQE_OPCODE_TCP_RESET (0x16)
52#define ISCSI_KCQE_OPCODE_TCP_SYN (0x17)
53#define ISCSI_KCQE_OPCODE_TCP_FIN (0X18)
54#define ISCSI_KCQE_OPCODE_TCP_ERROR (0x19)
55#define ISCSI_KCQE_OPCODE_CQ_EVENT_NOTIFICATION (0x20)
56#define ISCSI_KCQE_OPCODE_ISCSI_ERROR (0x21)
57
58/* KCQ (kernel completion queue) completion status */
59#define ISCSI_KCQE_COMPLETION_STATUS_SUCCESS (0x0)
60#define ISCSI_KCQE_COMPLETION_STATUS_INVALID_OPCODE (0x1)
61#define ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE (0x2)
62#define ISCSI_KCQE_COMPLETION_STATUS_CTX_FREE_FAILURE (0x3)
63#define ISCSI_KCQE_COMPLETION_STATUS_NIC_ERROR (0x4)
64
65#define ISCSI_KCQE_COMPLETION_STATUS_HDR_DIG_ERR (0x5)
66#define ISCSI_KCQE_COMPLETION_STATUS_DATA_DIG_ERR (0x6)
67
68#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_UNEXPECTED_OPCODE (0xa)
69#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_OPCODE (0xb)
70#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_AHS_LEN (0xc)
71#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_ITT (0xd)
72#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_STATSN (0xe)
73
74/* Response */
75#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_EXP_DATASN (0xf)
76#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T (0x10)
77#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATA_SEG_LEN_IS_ZERO (0x2c)
78#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATA_SEG_LEN_TOO_BIG (0x2d)
79#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_0 (0x11)
80#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_1 (0x12)
81#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_2 (0x13)
82#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_3 (0x14)
83#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_4 (0x15)
84#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_5 (0x16)
85#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_6 (0x17)
86
87/* Data-In */
88#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REMAIN_RCV_LEN (0x18)
89#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_MAX_RCV_PDU_LEN (0x19)
90#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_F_BIT_ZERO (0x1a)
91#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_NOT_RSRV (0x1b)
92#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATASN (0x1c)
93#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REMAIN_BURST_LEN (0x1d)
94
95/* R2T */
96#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_BUFFER_OFF (0x1f)
97#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_LUN (0x20)
98#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_R2TSN (0x21)
99#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0 (0x22)
100#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_1 (0x23)
101#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T_EXCEED (0x24)
102#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_IS_RSRV (0x25)
103#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_MAX_BURST_LEN (0x26)
104#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATA_SEG_LEN_NOT_ZERO (0x27)
105
106/* TMF */
107#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REJECT_PDU_LEN (0x28)
108#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_ASYNC_PDU_LEN (0x29)
109#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_NOPIN_PDU_LEN (0x2a)
110#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T_IN_CLEANUP (0x2b)
111
112/* IP/TCP processing errors: */
113#define ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_IP_FRAGMENT (0x40)
114#define ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_IP_OPTIONS (0x41)
115#define ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_URGENT_FLAG (0x42)
116#define ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_MAX_RTRANS (0x43)
117
118/* iSCSI licensing errors */
119/* general iSCSI license not installed */
120#define ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED (0x50)
121/* additional LOM specific iSCSI license not installed */
122#define ISCSI_KCQE_COMPLETION_STATUS_LOM_ISCSI_NOT_ENABLED (0x51)
123
124#define ISCSI_KCQE_COMPLETION_STATUS_CID_BUSY (0x80)
125
126/* SQ/RQ/CQ DB structure sizes */
127#define ISCSI_SQ_DB_SIZE (16)
128#define ISCSI_RQ_DB_SIZE (64)
129#define ISCSI_CQ_DB_SIZE (80)
130
131#define ISCSI_SQN_TO_NOTIFY_NOT_VALID 0xFFFF
132
133/* Page size codes (for flags field in connection offload request) */
134#define ISCSI_PAGE_SIZE_256 (0)
135#define ISCSI_PAGE_SIZE_512 (1)
136#define ISCSI_PAGE_SIZE_1K (2)
137#define ISCSI_PAGE_SIZE_2K (3)
138#define ISCSI_PAGE_SIZE_4K (4)
139#define ISCSI_PAGE_SIZE_8K (5)
140#define ISCSI_PAGE_SIZE_16K (6)
141#define ISCSI_PAGE_SIZE_32K (7)
142#define ISCSI_PAGE_SIZE_64K (8)
143#define ISCSI_PAGE_SIZE_128K (9)
144#define ISCSI_PAGE_SIZE_256K (10)
145#define ISCSI_PAGE_SIZE_512K (11)
146#define ISCSI_PAGE_SIZE_1M (12)
147#define ISCSI_PAGE_SIZE_2M (13)
148#define ISCSI_PAGE_SIZE_4M (14)
149#define ISCSI_PAGE_SIZE_8M (15)
150
151/* Iscsi PDU related defines */
152#define ISCSI_HEADER_SIZE (48)
153#define ISCSI_DIGEST_SHIFT (2)
154#define ISCSI_DIGEST_SIZE (4)
155
156#define B577XX_ISCSI_CONNECTION_TYPE 3
157
158#endif /*__57XX_ISCSI_CONSTANTS_H_ */