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1da177e4 LT |
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) */ |