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-rw-r--r--drivers/scsi/lpfc/lpfc_scsi.h157
1 files changed, 157 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_scsi.h b/drivers/scsi/lpfc/lpfc_scsi.h
new file mode 100644
index 000000000000..4aafba47628d
--- /dev/null
+++ b/drivers/scsi/lpfc/lpfc_scsi.h
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1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Enterprise Fibre Channel Host Bus Adapters. *
4 * Refer to the README file included with this package for *
5 * driver version and adapter support. *
6 * Copyright (C) 2004 Emulex Corporation. *
7 * www.emulex.com *
8 * *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of the GNU General Public License *
11 * as published by the Free Software Foundation; either version 2 *
12 * of the License, or (at your option) any later version. *
13 * *
14 * This program is distributed in the hope that it will be useful, *
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
17 * GNU General Public License for more details, a copy of which *
18 * can be found in the file COPYING included with this package. *
19 *******************************************************************/
20
21/*
22 * $Id: lpfc_scsi.h 1.83 2005/04/07 08:47:43EDT sf_support Exp $
23 */
24
25struct lpfc_hba;
26
27#define list_remove_head(list, entry, type, member) \
28 if (!list_empty(list)) { \
29 entry = list_entry((list)->next, type, member); \
30 list_del_init(&entry->member); \
31 }
32
33#define list_get_first(list, type, member) \
34 (list_empty(list)) ? NULL : \
35 list_entry((list)->next, type, member)
36
37/* per-port data that is allocated in the FC transport for us */
38struct lpfc_rport_data {
39 struct lpfc_nodelist *pnode; /* Pointer to the node structure. */
40};
41
42struct fcp_rsp {
43 uint32_t rspRsvd1; /* FC Word 0, byte 0:3 */
44 uint32_t rspRsvd2; /* FC Word 1, byte 0:3 */
45
46 uint8_t rspStatus0; /* FCP_STATUS byte 0 (reserved) */
47 uint8_t rspStatus1; /* FCP_STATUS byte 1 (reserved) */
48 uint8_t rspStatus2; /* FCP_STATUS byte 2 field validity */
49#define RSP_LEN_VALID 0x01 /* bit 0 */
50#define SNS_LEN_VALID 0x02 /* bit 1 */
51#define RESID_OVER 0x04 /* bit 2 */
52#define RESID_UNDER 0x08 /* bit 3 */
53 uint8_t rspStatus3; /* FCP_STATUS byte 3 SCSI status byte */
54
55 uint32_t rspResId; /* Residual xfer if residual count field set in
56 fcpStatus2 */
57 /* Received in Big Endian format */
58 uint32_t rspSnsLen; /* Length of sense data in fcpSnsInfo */
59 /* Received in Big Endian format */
60 uint32_t rspRspLen; /* Length of FCP response data in fcpRspInfo */
61 /* Received in Big Endian format */
62
63 uint8_t rspInfo0; /* FCP_RSP_INFO byte 0 (reserved) */
64 uint8_t rspInfo1; /* FCP_RSP_INFO byte 1 (reserved) */
65 uint8_t rspInfo2; /* FCP_RSP_INFO byte 2 (reserved) */
66 uint8_t rspInfo3; /* FCP_RSP_INFO RSP_CODE byte 3 */
67
68#define RSP_NO_FAILURE 0x00
69#define RSP_DATA_BURST_ERR 0x01
70#define RSP_CMD_FIELD_ERR 0x02
71#define RSP_RO_MISMATCH_ERR 0x03
72#define RSP_TM_NOT_SUPPORTED 0x04 /* Task mgmt function not supported */
73#define RSP_TM_NOT_COMPLETED 0x05 /* Task mgmt function not performed */
74
75 uint32_t rspInfoRsvd; /* FCP_RSP_INFO bytes 4-7 (reserved) */
76
77 uint8_t rspSnsInfo[128];
78#define SNS_ILLEGAL_REQ 0x05 /* sense key is byte 3 ([2]) */
79#define SNSCOD_BADCMD 0x20 /* sense code is byte 13 ([12]) */
80};
81
82struct fcp_cmnd {
83 uint32_t fcpLunMsl; /* most significant lun word (32 bits) */
84 uint32_t fcpLunLsl; /* least significant lun word (32 bits) */
85 /* # of bits to shift lun id to end up in right
86 * payload word, little endian = 8, big = 16.
87 */
88#if __BIG_ENDIAN
89#define FC_LUN_SHIFT 16
90#define FC_ADDR_MODE_SHIFT 24
91#else /* __LITTLE_ENDIAN */
92#define FC_LUN_SHIFT 8
93#define FC_ADDR_MODE_SHIFT 0
94#endif
95
96 uint8_t fcpCntl0; /* FCP_CNTL byte 0 (reserved) */
97 uint8_t fcpCntl1; /* FCP_CNTL byte 1 task codes */
98#define SIMPLE_Q 0x00
99#define HEAD_OF_Q 0x01
100#define ORDERED_Q 0x02
101#define ACA_Q 0x04
102#define UNTAGGED 0x05
103 uint8_t fcpCntl2; /* FCP_CTL byte 2 task management codes */
104#define FCP_ABORT_TASK_SET 0x02 /* Bit 1 */
105#define FCP_CLEAR_TASK_SET 0x04 /* bit 2 */
106#define FCP_BUS_RESET 0x08 /* bit 3 */
107#define FCP_LUN_RESET 0x10 /* bit 4 */
108#define FCP_TARGET_RESET 0x20 /* bit 5 */
109#define FCP_CLEAR_ACA 0x40 /* bit 6 */
110#define FCP_TERMINATE_TASK 0x80 /* bit 7 */
111 uint8_t fcpCntl3;
112#define WRITE_DATA 0x01 /* Bit 0 */
113#define READ_DATA 0x02 /* Bit 1 */
114
115 uint8_t fcpCdb[16]; /* SRB cdb field is copied here */
116 uint32_t fcpDl; /* Total transfer length */
117
118};
119
120struct lpfc_scsi_buf {
121 struct list_head list;
122 struct scsi_cmnd *pCmd;
123 struct lpfc_hba *scsi_hba;
124 struct lpfc_rport_data *rdata;
125
126 uint32_t timeout;
127
128 uint16_t status; /* From IOCB Word 7- ulpStatus */
129 uint32_t result; /* From IOCB Word 4. */
130
131 uint32_t seg_cnt; /* Number of scatter-gather segments returned by
132 * dma_map_sg. The driver needs this for calls
133 * to dma_unmap_sg. */
134 dma_addr_t nonsg_phys; /* Non scatter-gather physical address. */
135
136 /*
137 * data and dma_handle are the kernel virutal and bus address of the
138 * dma-able buffer containing the fcp_cmd, fcp_rsp and a scatter
139 * gather bde list that supports the sg_tablesize value.
140 */
141 void *data;
142 dma_addr_t dma_handle;
143
144 struct fcp_cmnd *fcp_cmnd;
145 struct fcp_rsp *fcp_rsp;
146 struct ulp_bde64 *fcp_bpl;
147
148 /* cur_iocbq has phys of the dma-able buffer.
149 * Iotag is in here
150 */
151 struct lpfc_iocbq cur_iocbq;
152};
153
154#define LPFC_SCSI_DMA_EXT_SIZE 264
155#define LPFC_BPL_SIZE 1024
156
157#define MDAC_DIRECT_CMD 0x22
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