drivers/fc4/fcp.h

   1 /* fcp.h: Definitions for Fibre Channel Protocol.
   2  *
   3  * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
   4  *
   5  */
   6
   7 #ifndef __FCP_H
   8 #define __FCP_H
   9
  10 /* FCP addressing is hierarchical with up to 4 layers, MS first.
  11    Exact meaning of the addresses is up to the vendor */
  12
  13 /* fcp_cntl field */
  14 #define FCP_CNTL_WRITE          0x00000001      /* Initiator write */
  15 #define FCP_CNTL_READ           0x00000002      /* Initiator read */
  16 #define FCP_CNTL_ABORT_TSK      0x00000200      /* Abort task set */
  17 #define FCP_CNTL_CLR_TASK       0x00000400      /* Clear task set */
  18 #define FCP_CNTL_RESET          0x00002000      /* Reset */
  19 #define FCP_CNTL_CLR_ACA        0x00004000      /* Clear ACA */
  20 #define FCP_CNTL_KILL_TASK      0x00008000      /* Terminate task */
  21 #define FCP_CNTL_QTYPE_MASK     0x00070000      /* Tagged queueing type */
  22 #define         FCP_CNTL_QTYPE_SIMPLE           0x00000000
  23 #define         FCP_CNTL_QTYPE_HEAD_OF_Q        0x00010000
  24 #define         FCP_CNTL_QTYPE_ORDERED          0x00020000
  25 #define         FCP_CNTL_QTYPE_ACA_Q_TAG        0x00040000
  26 #define         FCP_CNTL_QTYPE_UNTAGGED         0x00050000
  27
  28 typedef struct {
  29         u16     fcp_addr[4];
  30         u32     fcp_cntl;
  31         u8      fcp_cdb[16];
  32         u32     fcp_data_len;
  33 } fcp_cmd;
  34
  35 /* fcp_status field */
  36 #define FCP_STATUS_MASK         0x000000ff      /* scsi status of command */
  37 #define FCP_STATUS_RSP_LEN      0x00000100      /* response_len != 0 */
  38 #define FCP_STATUS_SENSE_LEN    0x00000200      /* sense_len != 0 */
  39 #define FCP_STATUS_RESID        0x00000400      /* resid != 0 */
  40
  41 typedef struct {
  42         u32     xxx[2];
  43         u32     fcp_status;
  44         u32     fcp_resid;
  45         u32     fcp_sense_len;
  46         u32     fcp_response_len;
  47         /* u8   fcp_sense[fcp_sense_len]; */
  48         /* u8   fcp_response[fcp_response_len]; */
  49 } fcp_rsp;
  50
  51 /* fcp errors */
  52
  53 /* rsp_info_type field */
  54 #define FCP_RSP_SCSI_BUS_ERR    0x01
  55 #define FCP_RSP_SCSI_PORT_ERR   0x02
  56 #define FCP_RSP_CARD_ERR        0x03
  57
  58 /* isp_status field */
  59 #define FCP_RSP_CMD_COMPLETE    0x0000
  60 #define FCP_RSP_CMD_INCOMPLETE  0x0001
  61 #define FCP_RSP_CMD_DMA_ERR     0x0002
  62 #define FCP_RSP_CMD_TRAN_ERR    0x0003
  63 #define FCP_RSP_CMD_RESET       0x0004
  64 #define FCP_RSP_CMD_ABORTED     0x0005
  65 #define FCP_RSP_CMD_TIMEOUT     0x0006
  66 #define FCP_RSP_CMD_OVERRUN     0x0007
  67
  68 /* isp_state_flags field */
  69 #define FCP_RSP_ST_GOT_BUS      0x0100
  70 #define FCP_RSP_ST_GOT_TARGET   0x0200
  71 #define FCP_RSP_ST_SENT_CMD     0x0400
  72 #define FCP_RSP_ST_XFRD_DATA    0x0800
  73 #define FCP_RSP_ST_GOT_STATUS   0x1000
  74 #define FCP_RSP_ST_GOT_SENSE    0x2000
  75
  76 /* isp_stat_flags field */
  77 #define FCP_RSP_STAT_DISC       0x0001
  78 #define FCP_RSP_STAT_SYNC       0x0002
  79 #define FCP_RSP_STAT_PERR       0x0004
  80 #define FCP_RSP_STAT_BUS_RESET  0x0008
  81 #define FCP_RSP_STAT_DEV_RESET  0x0010
  82 #define FCP_RSP_STAT_ABORTED    0x0020
  83 #define FCP_RSP_STAT_TIMEOUT    0x0040
  84 #define FCP_RSP_STAT_NEGOTIATE  0x0080
  85
  86 typedef struct {
  87         u8      rsp_info_type;
  88         u8      xxx;
  89         u16     isp_status;
  90         u16     isp_state_flags;
  91         u16     isp_stat_flags;
  92 } fcp_scsi_err;
  93
  94 #endif /* !(__FCP_H) */