LXR linux/drivers/scsi/bnx2i/57xx_iscsi

   1/* 57xx_iscsi_constants.h: Broadcom NetXtreme II iSCSI HSI
   2 *
   3 * Copyright (c) 2006 - 2013 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#define ISCSI_KCQE_COMPLETION_STATUS_PARITY_ERR                         (0x81)
 126
 127/* SQ/RQ/CQ DB structure sizes */
 128#define ISCSI_SQ_DB_SIZE    (16)
 129#define ISCSI_RQ_DB_SIZE    (64)
 130#define ISCSI_CQ_DB_SIZE    (80)
 131
 132#define ISCSI_SQN_TO_NOTIFY_NOT_VALID                                   0xFFFF
 133
 134/* Page size codes (for flags field in connection offload request) */
 135#define ISCSI_PAGE_SIZE_256     (0)
 136#define ISCSI_PAGE_SIZE_512     (1)
 137#define ISCSI_PAGE_SIZE_1K      (2)
 138#define ISCSI_PAGE_SIZE_2K      (3)
 139#define ISCSI_PAGE_SIZE_4K      (4)
 140#define ISCSI_PAGE_SIZE_8K      (5)
 141#define ISCSI_PAGE_SIZE_16K     (6)
 142#define ISCSI_PAGE_SIZE_32K     (7)
 143#define ISCSI_PAGE_SIZE_64K     (8)
 144#define ISCSI_PAGE_SIZE_128K    (9)
 145#define ISCSI_PAGE_SIZE_256K    (10)
 146#define ISCSI_PAGE_SIZE_512K    (11)
 147#define ISCSI_PAGE_SIZE_1M      (12)
 148#define ISCSI_PAGE_SIZE_2M      (13)
 149#define ISCSI_PAGE_SIZE_4M      (14)
 150#define ISCSI_PAGE_SIZE_8M      (15)
 151
 152/* Iscsi PDU related defines */
 153#define ISCSI_HEADER_SIZE   (48)
 154#define ISCSI_DIGEST_SHIFT  (2)
 155#define ISCSI_DIGEST_SIZE   (4)
 156
 157#define B577XX_ISCSI_CONNECTION_TYPE    3
 158
 159#endif /*__57XX_ISCSI_CONSTANTS_H_ */
 160