drivers/scsi/bnx2i/57xx_iscsi_constants.h

   1 /* 57xx_iscsi_constants.h: Broadcom NetXtreme II iSCSI HSI
   2  *
   3  * Copyright (c) 2006 - 2009 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  */
  11 #ifndef __57XX_ISCSI_CONSTANTS_H_
  12 #define __57XX_ISCSI_CONSTANTS_H_
  13
  14 /**
  15 * This file defines HSI constants for the iSCSI flows
  16 */
  17
  18 /* iSCSI request op codes */
  19 #define ISCSI_OPCODE_CLEANUP_REQUEST    (7)
  20
  21 /* iSCSI response/messages op codes */
  22 #define ISCSI_OPCODE_CLEANUP_RESPONSE           (0x27)
  23 #define ISCSI_OPCODE_NOPOUT_LOCAL_COMPLETION    (0)
  24
  25 /* iSCSI task types */
  26 #define ISCSI_TASK_TYPE_READ    (0)
  27 #define ISCSI_TASK_TYPE_WRITE   (1)
  28 #define ISCSI_TASK_TYPE_MPATH   (2)
  29
  30 /* initial CQ sequence numbers */
  31 #define ISCSI_INITIAL_SN    (1)
  32
  33 /* KWQ (kernel work queue) layer codes */
  34 #define ISCSI_KWQE_LAYER_CODE   (6)
  35
  36 /* KWQ (kernel work queue) request op codes */
  37 #define ISCSI_KWQE_OPCODE_OFFLOAD_CONN1 (0)
  38 #define ISCSI_KWQE_OPCODE_OFFLOAD_CONN2 (1)
  39 #define ISCSI_KWQE_OPCODE_UPDATE_CONN   (2)
  40 #define ISCSI_KWQE_OPCODE_DESTROY_CONN  (3)
  41 #define ISCSI_KWQE_OPCODE_INIT1         (4)
  42 #define ISCSI_KWQE_OPCODE_INIT2         (5)
  43
  44 /* KCQ (kernel completion queue) response op codes */
  45 #define ISCSI_KCQE_OPCODE_OFFLOAD_CONN  (0x10)
  46 #define ISCSI_KCQE_OPCODE_UPDATE_CONN   (0x12)
  47 #define ISCSI_KCQE_OPCODE_DESTROY_CONN  (0x13)
  48 #define ISCSI_KCQE_OPCODE_INIT          (0x14)
  49 #define ISCSI_KCQE_OPCODE_FW_CLEAN_TASK (0x15)
  50 #define ISCSI_KCQE_OPCODE_TCP_RESET     (0x16)
  51 #define ISCSI_KCQE_OPCODE_TCP_SYN       (0x17)
  52 #define ISCSI_KCQE_OPCODE_TCP_FIN       (0X18)
  53 #define ISCSI_KCQE_OPCODE_TCP_ERROR     (0x19)
  54 #define ISCSI_KCQE_OPCODE_CQ_EVENT_NOTIFICATION (0x20)
  55 #define ISCSI_KCQE_OPCODE_ISCSI_ERROR   (0x21)
  56
  57 /* KCQ (kernel completion queue) completion status */
  58 #define ISCSI_KCQE_COMPLETION_STATUS_SUCCESS                            (0x0)
  59 #define ISCSI_KCQE_COMPLETION_STATUS_INVALID_OPCODE                     (0x1)
  60 #define ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE                  (0x2)
  61 #define ISCSI_KCQE_COMPLETION_STATUS_CTX_FREE_FAILURE                   (0x3)
  62 #define ISCSI_KCQE_COMPLETION_STATUS_NIC_ERROR                          (0x4)
  63
  64 #define ISCSI_KCQE_COMPLETION_STATUS_HDR_DIG_ERR                        (0x5)
  65 #define ISCSI_KCQE_COMPLETION_STATUS_DATA_DIG_ERR                       (0x6)
  66
  67 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_UNEXPECTED_OPCODE     (0xa)
  68 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_OPCODE                (0xb)
  69 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_AHS_LEN               (0xc)
  70 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_ITT                   (0xd)
  71 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_STATSN                (0xe)
  72
  73 /* Response */
  74 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_EXP_DATASN            (0xf)
  75 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T              (0x10)
  76 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATA_SEG_LEN_IS_ZERO  (0x2c)
  77 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATA_SEG_LEN_TOO_BIG  (0x2d)
  78 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_0                 (0x11)
  79 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_1                 (0x12)
  80 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_2                 (0x13)
  81 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_3                 (0x14)
  82 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_4                 (0x15)
  83 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_5                 (0x16)
  84 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_6                 (0x17)
  85
  86 /* Data-In */
  87 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REMAIN_RCV_LEN        (0x18)
  88 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_MAX_RCV_PDU_LEN       (0x19)
  89 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_F_BIT_ZERO            (0x1a)
  90 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_NOT_RSRV          (0x1b)
  91 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATASN                (0x1c)
  92 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REMAIN_BURST_LEN      (0x1d)
  93
  94 /* R2T */
  95 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_BUFFER_OFF            (0x1f)
  96 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_LUN                   (0x20)
  97 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_R2TSN                 (0x21)
  98 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0 (0x22)
  99 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_1 (0x23)
 100 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T_EXCEED       (0x24)
 101 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_IS_RSRV           (0x25)
 102 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_MAX_BURST_LEN         (0x26)
 103 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATA_SEG_LEN_NOT_ZERO (0x27)
 104
 105 /* TMF */
 106 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REJECT_PDU_LEN        (0x28)
 107 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_ASYNC_PDU_LEN         (0x29)
 108 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_NOPIN_PDU_LEN         (0x2a)
 109 #define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T_IN_CLEANUP   (0x2b)
 110
 111 /* IP/TCP processing errors: */
 112 #define ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_IP_FRAGMENT               (0x40)
 113 #define ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_IP_OPTIONS                (0x41)
 114 #define ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_URGENT_FLAG               (0x42)
 115 #define ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_MAX_RTRANS                (0x43)
 116
 117 /* iSCSI licensing errors */
 118 /* general iSCSI license not installed */
 119 #define ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED                (0x50)
 120 /* additional LOM specific iSCSI license not installed */
 121 #define ISCSI_KCQE_COMPLETION_STATUS_LOM_ISCSI_NOT_ENABLED              (0x51)
 122
 123 #define ISCSI_KCQE_COMPLETION_STATUS_CID_BUSY                           (0x80)
 124
 125 /* SQ/RQ/CQ DB structure sizes */
 126 #define ISCSI_SQ_DB_SIZE    (16)
 127 #define ISCSI_RQ_DB_SIZE    (16)
 128 #define ISCSI_CQ_DB_SIZE    (80)
 129
 130 #define ISCSI_SQN_TO_NOTIFY_NOT_VALID                                   0xFFFF
 131
 132 /* Page size codes (for flags field in connection offload request) */
 133 #define ISCSI_PAGE_SIZE_256     (0)
 134 #define ISCSI_PAGE_SIZE_512     (1)
 135 #define ISCSI_PAGE_SIZE_1K      (2)
 136 #define ISCSI_PAGE_SIZE_2K      (3)
 137 #define ISCSI_PAGE_SIZE_4K      (4)
 138 #define ISCSI_PAGE_SIZE_8K      (5)
 139 #define ISCSI_PAGE_SIZE_16K     (6)
 140 #define ISCSI_PAGE_SIZE_32K     (7)
 141 #define ISCSI_PAGE_SIZE_64K     (8)
 142 #define ISCSI_PAGE_SIZE_128K    (9)
 143 #define ISCSI_PAGE_SIZE_256K    (10)
 144 #define ISCSI_PAGE_SIZE_512K    (11)
 145 #define ISCSI_PAGE_SIZE_1M      (12)
 146 #define ISCSI_PAGE_SIZE_2M      (13)
 147 #define ISCSI_PAGE_SIZE_4M      (14)
 148 #define ISCSI_PAGE_SIZE_8M      (15)
 149
 150 /* Iscsi PDU related defines */
 151 #define ISCSI_HEADER_SIZE   (48)
 152 #define ISCSI_DIGEST_SHIFT  (2)
 153 #define ISCSI_DIGEST_SIZE   (4)
 154
 155 #define B577XX_ISCSI_CONNECTION_TYPE    3
 156
 157 #endif /*__57XX_ISCSI_CONSTANTS_H_ */