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dea3101e | 1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
b857ff33 | 4 | * Copyright (C) 2004-2014 Emulex. All rights reserved. * |
c44ce173 | 5 | * EMULEX and SLI are trademarks of Emulex. * |
dea3101e | 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 | 19 | *******************************************************************/ |
20 | ||
44456d37 OH |
21 | #include <asm/byteorder.h> |
22 | ||
dea3101e | 23 | struct lpfc_hba; |
df9e1b59 | 24 | #define LPFC_FCP_CDB_LEN 16 |
dea3101e | 25 | |
26 | #define list_remove_head(list, entry, type, member) \ | |
286fc8f8 JB |
27 | do { \ |
28 | entry = NULL; \ | |
dea3101e | 29 | if (!list_empty(list)) { \ |
30 | entry = list_entry((list)->next, type, member); \ | |
31 | list_del_init(&entry->member); \ | |
286fc8f8 JB |
32 | } \ |
33 | } while(0) | |
dea3101e | 34 | |
35 | #define list_get_first(list, type, member) \ | |
36 | (list_empty(list)) ? NULL : \ | |
37 | list_entry((list)->next, type, member) | |
38 | ||
39 | /* per-port data that is allocated in the FC transport for us */ | |
40 | struct lpfc_rport_data { | |
41 | struct lpfc_nodelist *pnode; /* Pointer to the node structure. */ | |
42 | }; | |
43 | ||
1ba981fd JS |
44 | struct lpfc_device_id { |
45 | struct lpfc_name vport_wwpn; | |
46 | struct lpfc_name target_wwpn; | |
47 | uint64_t lun; | |
48 | }; | |
49 | ||
50 | struct lpfc_device_data { | |
51 | struct list_head listentry; | |
52 | struct lpfc_rport_data *rport_data; | |
53 | struct lpfc_device_id device_id; | |
54 | bool oas_enabled; | |
55 | bool available; | |
56 | }; | |
57 | ||
dea3101e | 58 | struct fcp_rsp { |
59 | uint32_t rspRsvd1; /* FC Word 0, byte 0:3 */ | |
60 | uint32_t rspRsvd2; /* FC Word 1, byte 0:3 */ | |
61 | ||
62 | uint8_t rspStatus0; /* FCP_STATUS byte 0 (reserved) */ | |
63 | uint8_t rspStatus1; /* FCP_STATUS byte 1 (reserved) */ | |
64 | uint8_t rspStatus2; /* FCP_STATUS byte 2 field validity */ | |
65 | #define RSP_LEN_VALID 0x01 /* bit 0 */ | |
66 | #define SNS_LEN_VALID 0x02 /* bit 1 */ | |
67 | #define RESID_OVER 0x04 /* bit 2 */ | |
68 | #define RESID_UNDER 0x08 /* bit 3 */ | |
69 | uint8_t rspStatus3; /* FCP_STATUS byte 3 SCSI status byte */ | |
70 | ||
71 | uint32_t rspResId; /* Residual xfer if residual count field set in | |
72 | fcpStatus2 */ | |
73 | /* Received in Big Endian format */ | |
74 | uint32_t rspSnsLen; /* Length of sense data in fcpSnsInfo */ | |
75 | /* Received in Big Endian format */ | |
76 | uint32_t rspRspLen; /* Length of FCP response data in fcpRspInfo */ | |
77 | /* Received in Big Endian format */ | |
78 | ||
79 | uint8_t rspInfo0; /* FCP_RSP_INFO byte 0 (reserved) */ | |
80 | uint8_t rspInfo1; /* FCP_RSP_INFO byte 1 (reserved) */ | |
81 | uint8_t rspInfo2; /* FCP_RSP_INFO byte 2 (reserved) */ | |
82 | uint8_t rspInfo3; /* FCP_RSP_INFO RSP_CODE byte 3 */ | |
83 | ||
84 | #define RSP_NO_FAILURE 0x00 | |
85 | #define RSP_DATA_BURST_ERR 0x01 | |
86 | #define RSP_CMD_FIELD_ERR 0x02 | |
87 | #define RSP_RO_MISMATCH_ERR 0x03 | |
88 | #define RSP_TM_NOT_SUPPORTED 0x04 /* Task mgmt function not supported */ | |
89 | #define RSP_TM_NOT_COMPLETED 0x05 /* Task mgmt function not performed */ | |
53151bbb | 90 | #define RSP_TM_INVALID_LU 0x09 /* Task mgmt function to invalid LU */ |
dea3101e | 91 | |
92 | uint32_t rspInfoRsvd; /* FCP_RSP_INFO bytes 4-7 (reserved) */ | |
93 | ||
94 | uint8_t rspSnsInfo[128]; | |
95 | #define SNS_ILLEGAL_REQ 0x05 /* sense key is byte 3 ([2]) */ | |
96 | #define SNSCOD_BADCMD 0x20 /* sense code is byte 13 ([12]) */ | |
97 | }; | |
98 | ||
99 | struct fcp_cmnd { | |
91886523 | 100 | struct scsi_lun fcp_lun; |
dea3101e | 101 | |
102 | uint8_t fcpCntl0; /* FCP_CNTL byte 0 (reserved) */ | |
103 | uint8_t fcpCntl1; /* FCP_CNTL byte 1 task codes */ | |
104 | #define SIMPLE_Q 0x00 | |
105 | #define HEAD_OF_Q 0x01 | |
106 | #define ORDERED_Q 0x02 | |
107 | #define ACA_Q 0x04 | |
108 | #define UNTAGGED 0x05 | |
109 | uint8_t fcpCntl2; /* FCP_CTL byte 2 task management codes */ | |
110 | #define FCP_ABORT_TASK_SET 0x02 /* Bit 1 */ | |
111 | #define FCP_CLEAR_TASK_SET 0x04 /* bit 2 */ | |
112 | #define FCP_BUS_RESET 0x08 /* bit 3 */ | |
113 | #define FCP_LUN_RESET 0x10 /* bit 4 */ | |
114 | #define FCP_TARGET_RESET 0x20 /* bit 5 */ | |
115 | #define FCP_CLEAR_ACA 0x40 /* bit 6 */ | |
116 | #define FCP_TERMINATE_TASK 0x80 /* bit 7 */ | |
117 | uint8_t fcpCntl3; | |
118 | #define WRITE_DATA 0x01 /* Bit 0 */ | |
119 | #define READ_DATA 0x02 /* Bit 1 */ | |
120 | ||
df9e1b59 | 121 | uint8_t fcpCdb[LPFC_FCP_CDB_LEN]; /* SRB cdb field is copied here */ |
dea3101e | 122 | uint32_t fcpDl; /* Total transfer length */ |
123 | ||
124 | }; | |
125 | ||
ea2151b4 JS |
126 | struct lpfc_scsicmd_bkt { |
127 | uint32_t cmd_count; | |
128 | }; | |
129 | ||
dea3101e | 130 | struct lpfc_scsi_buf { |
131 | struct list_head list; | |
132 | struct scsi_cmnd *pCmd; | |
dea3101e | 133 | struct lpfc_rport_data *rdata; |
134 | ||
135 | uint32_t timeout; | |
136 | ||
341af102 | 137 | uint16_t exch_busy; /* SLI4 hba reported XB on complete WCQE */ |
dea3101e | 138 | uint16_t status; /* From IOCB Word 7- ulpStatus */ |
139 | uint32_t result; /* From IOCB Word 4. */ | |
140 | ||
141 | uint32_t seg_cnt; /* Number of scatter-gather segments returned by | |
142 | * dma_map_sg. The driver needs this for calls | |
143 | * to dma_unmap_sg. */ | |
e2a0a9d6 JS |
144 | uint32_t prot_seg_cnt; /* seg_cnt's counterpart for protection data */ |
145 | ||
dea3101e | 146 | dma_addr_t nonsg_phys; /* Non scatter-gather physical address. */ |
147 | ||
148 | /* | |
25985edc | 149 | * data and dma_handle are the kernel virtual and bus address of the |
dea3101e | 150 | * dma-able buffer containing the fcp_cmd, fcp_rsp and a scatter |
151 | * gather bde list that supports the sg_tablesize value. | |
152 | */ | |
153 | void *data; | |
154 | dma_addr_t dma_handle; | |
155 | ||
156 | struct fcp_cmnd *fcp_cmnd; | |
157 | struct fcp_rsp *fcp_rsp; | |
158 | struct ulp_bde64 *fcp_bpl; | |
159 | ||
da0436e9 JS |
160 | dma_addr_t dma_phys_bpl; |
161 | ||
dea3101e | 162 | /* cur_iocbq has phys of the dma-able buffer. |
163 | * Iotag is in here | |
164 | */ | |
165 | struct lpfc_iocbq cur_iocbq; | |
fa61a54e | 166 | wait_queue_head_t *waitq; |
977b5a0a | 167 | unsigned long start_time; |
9a6b09c0 JS |
168 | |
169 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
170 | /* Used to restore any changes to protection data for error injection */ | |
171 | void *prot_data_segment; | |
172 | uint32_t prot_data; | |
173 | uint32_t prot_data_type; | |
174 | #define LPFC_INJERR_REFTAG 1 | |
175 | #define LPFC_INJERR_APPTAG 2 | |
176 | #define LPFC_INJERR_GUARD 3 | |
177 | #endif | |
dea3101e | 178 | }; |
179 | ||
180 | #define LPFC_SCSI_DMA_EXT_SIZE 264 | |
181 | #define LPFC_BPL_SIZE 1024 | |
dea3101e | 182 | #define MDAC_DIRECT_CMD 0x22 |
1ba981fd JS |
183 | |
184 | #define FIND_FIRST_OAS_LUN 0 | |
185 | #define NO_MORE_OAS_LUN -1 | |
186 | #define NOT_OAS_ENABLED_LUN NO_MORE_OAS_LUN |