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[linux-2.6] / 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) */