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dea3101e JB |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 JSEC |
3 | * Fibre Channel Host Bus Adapters. * |
4 | * Copyright (C) 2004-2005 Emulex. All rights reserved. * | |
5 | * EMULEX and SLI are trademarks of Emulex. * | |
dea3101e JB |
6 | * www.emulex.com * |
7 | * * | |
8 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
9 | * modify it under the terms of version 2 of the GNU General * |
10 | * Public License as published by the Free Software Foundation. * | |
11 | * This program is distributed in the hope that it will be useful. * | |
12 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
13 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
14 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
15 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
16 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
17 | * more details, a copy of which can be found in the file COPYING * | |
18 | * included with this package. * | |
dea3101e JB |
19 | *******************************************************************/ |
20 | ||
dea3101e JB |
21 | struct lpfc_hba; |
22 | ||
23 | #define list_remove_head(list, entry, type, member) \ | |
24 | if (!list_empty(list)) { \ | |
25 | entry = list_entry((list)->next, type, member); \ | |
26 | list_del_init(&entry->member); \ | |
27 | } | |
28 | ||
29 | #define list_get_first(list, type, member) \ | |
30 | (list_empty(list)) ? NULL : \ | |
31 | list_entry((list)->next, type, member) | |
32 | ||
33 | /* per-port data that is allocated in the FC transport for us */ | |
34 | struct lpfc_rport_data { | |
35 | struct lpfc_nodelist *pnode; /* Pointer to the node structure. */ | |
36 | }; | |
37 | ||
38 | struct fcp_rsp { | |
39 | uint32_t rspRsvd1; /* FC Word 0, byte 0:3 */ | |
40 | uint32_t rspRsvd2; /* FC Word 1, byte 0:3 */ | |
41 | ||
42 | uint8_t rspStatus0; /* FCP_STATUS byte 0 (reserved) */ | |
43 | uint8_t rspStatus1; /* FCP_STATUS byte 1 (reserved) */ | |
44 | uint8_t rspStatus2; /* FCP_STATUS byte 2 field validity */ | |
45 | #define RSP_LEN_VALID 0x01 /* bit 0 */ | |
46 | #define SNS_LEN_VALID 0x02 /* bit 1 */ | |
47 | #define RESID_OVER 0x04 /* bit 2 */ | |
48 | #define RESID_UNDER 0x08 /* bit 3 */ | |
49 | uint8_t rspStatus3; /* FCP_STATUS byte 3 SCSI status byte */ | |
50 | ||
51 | uint32_t rspResId; /* Residual xfer if residual count field set in | |
52 | fcpStatus2 */ | |
53 | /* Received in Big Endian format */ | |
54 | uint32_t rspSnsLen; /* Length of sense data in fcpSnsInfo */ | |
55 | /* Received in Big Endian format */ | |
56 | uint32_t rspRspLen; /* Length of FCP response data in fcpRspInfo */ | |
57 | /* Received in Big Endian format */ | |
58 | ||
59 | uint8_t rspInfo0; /* FCP_RSP_INFO byte 0 (reserved) */ | |
60 | uint8_t rspInfo1; /* FCP_RSP_INFO byte 1 (reserved) */ | |
61 | uint8_t rspInfo2; /* FCP_RSP_INFO byte 2 (reserved) */ | |
62 | uint8_t rspInfo3; /* FCP_RSP_INFO RSP_CODE byte 3 */ | |
63 | ||
64 | #define RSP_NO_FAILURE 0x00 | |
65 | #define RSP_DATA_BURST_ERR 0x01 | |
66 | #define RSP_CMD_FIELD_ERR 0x02 | |
67 | #define RSP_RO_MISMATCH_ERR 0x03 | |
68 | #define RSP_TM_NOT_SUPPORTED 0x04 /* Task mgmt function not supported */ | |
69 | #define RSP_TM_NOT_COMPLETED 0x05 /* Task mgmt function not performed */ | |
70 | ||
71 | uint32_t rspInfoRsvd; /* FCP_RSP_INFO bytes 4-7 (reserved) */ | |
72 | ||
73 | uint8_t rspSnsInfo[128]; | |
74 | #define SNS_ILLEGAL_REQ 0x05 /* sense key is byte 3 ([2]) */ | |
75 | #define SNSCOD_BADCMD 0x20 /* sense code is byte 13 ([12]) */ | |
76 | }; | |
77 | ||
78 | struct fcp_cmnd { | |
79 | uint32_t fcpLunMsl; /* most significant lun word (32 bits) */ | |
80 | uint32_t fcpLunLsl; /* least significant lun word (32 bits) */ | |
81 | /* # of bits to shift lun id to end up in right | |
82 | * payload word, little endian = 8, big = 16. | |
83 | */ | |
84 | #if __BIG_ENDIAN | |
85 | #define FC_LUN_SHIFT 16 | |
86 | #define FC_ADDR_MODE_SHIFT 24 | |
87 | #else /* __LITTLE_ENDIAN */ | |
88 | #define FC_LUN_SHIFT 8 | |
89 | #define FC_ADDR_MODE_SHIFT 0 | |
90 | #endif | |
91 | ||
92 | uint8_t fcpCntl0; /* FCP_CNTL byte 0 (reserved) */ | |
93 | uint8_t fcpCntl1; /* FCP_CNTL byte 1 task codes */ | |
94 | #define SIMPLE_Q 0x00 | |
95 | #define HEAD_OF_Q 0x01 | |
96 | #define ORDERED_Q 0x02 | |
97 | #define ACA_Q 0x04 | |
98 | #define UNTAGGED 0x05 | |
99 | uint8_t fcpCntl2; /* FCP_CTL byte 2 task management codes */ | |
100 | #define FCP_ABORT_TASK_SET 0x02 /* Bit 1 */ | |
101 | #define FCP_CLEAR_TASK_SET 0x04 /* bit 2 */ | |
102 | #define FCP_BUS_RESET 0x08 /* bit 3 */ | |
103 | #define FCP_LUN_RESET 0x10 /* bit 4 */ | |
104 | #define FCP_TARGET_RESET 0x20 /* bit 5 */ | |
105 | #define FCP_CLEAR_ACA 0x40 /* bit 6 */ | |
106 | #define FCP_TERMINATE_TASK 0x80 /* bit 7 */ | |
107 | uint8_t fcpCntl3; | |
108 | #define WRITE_DATA 0x01 /* Bit 0 */ | |
109 | #define READ_DATA 0x02 /* Bit 1 */ | |
110 | ||
111 | uint8_t fcpCdb[16]; /* SRB cdb field is copied here */ | |
112 | uint32_t fcpDl; /* Total transfer length */ | |
113 | ||
114 | }; | |
115 | ||
116 | struct lpfc_scsi_buf { | |
117 | struct list_head list; | |
118 | struct scsi_cmnd *pCmd; | |
119 | struct lpfc_hba *scsi_hba; | |
120 | struct lpfc_rport_data *rdata; | |
121 | ||
122 | uint32_t timeout; | |
123 | ||
124 | uint16_t status; /* From IOCB Word 7- ulpStatus */ | |
125 | uint32_t result; /* From IOCB Word 4. */ | |
126 | ||
127 | uint32_t seg_cnt; /* Number of scatter-gather segments returned by | |
128 | * dma_map_sg. The driver needs this for calls | |
129 | * to dma_unmap_sg. */ | |
130 | dma_addr_t nonsg_phys; /* Non scatter-gather physical address. */ | |
131 | ||
132 | /* | |
133 | * data and dma_handle are the kernel virutal and bus address of the | |
134 | * dma-able buffer containing the fcp_cmd, fcp_rsp and a scatter | |
135 | * gather bde list that supports the sg_tablesize value. | |
136 | */ | |
137 | void *data; | |
138 | dma_addr_t dma_handle; | |
139 | ||
140 | struct fcp_cmnd *fcp_cmnd; | |
141 | struct fcp_rsp *fcp_rsp; | |
142 | struct ulp_bde64 *fcp_bpl; | |
143 | ||
144 | /* cur_iocbq has phys of the dma-able buffer. | |
145 | * Iotag is in here | |
146 | */ | |
147 | struct lpfc_iocbq cur_iocbq; | |
148 | }; | |
149 | ||
150 | #define LPFC_SCSI_DMA_EXT_SIZE 264 | |
151 | #define LPFC_BPL_SIZE 1024 | |
152 | ||
153 | #define MDAC_DIRECT_CMD 0x22 |