tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2024 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Inc and/or its subsidiaries. *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
8 * www.broadcom.com *
9 * *
10 * This program is free software; you can redistribute it and/or *
11 * modify it under the terms of version 2 of the GNU General *
12 * Public License as published by the Free Software Foundation. *
13 * This program is distributed in the hope that it will be useful. *
14 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
15 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
16 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
17 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
18 * TO BE LEGALLY INVALID. See the GNU General Public License for *
19 * more details, a copy of which can be found in the file COPYING *
20 * included with this package. *
21 *******************************************************************/
22
23#include <asm/byteorder.h>
24
25struct lpfc_hba;
26#define LPFC_FCP_CDB_LEN 16
27#define LPFC_FCP_CDB_LEN_32 32
28
29#define list_remove_head(list, entry, type, member) \
30 do { \
31 entry = NULL; \
32 if (!list_empty(list)) { \
33 entry = list_entry((list)->next, type, member); \
34 list_del_init(&entry->member); \
35 } \
36 } while(0)
37
38#define list_get_first(list, type, member) \
39 (list_empty(list)) ? NULL : \
40 list_entry((list)->next, type, member)
41
42/* per-port data that is allocated in the FC transport for us */
43struct lpfc_rport_data {
44 struct lpfc_nodelist *pnode; /* Pointer to the node structure. */
45};
46
47struct lpfc_device_id {
48 struct lpfc_name vport_wwpn;
49 struct lpfc_name target_wwpn;
50 uint64_t lun;
51};
52
53struct lpfc_device_data {
54 struct list_head listentry;
55 struct lpfc_rport_data *rport_data;
56 struct lpfc_device_id device_id;
57 uint8_t priority;
58 bool oas_enabled;
59 bool available;
60};
61
62struct fcp_rsp {
63 uint32_t rspRsvd1; /* FC Word 0, byte 0:3 */
64 uint32_t rspRsvd2; /* FC Word 1, byte 0:3 */
65
66 uint8_t rspStatus0; /* FCP_STATUS byte 0 (reserved) */
67 uint8_t rspStatus1; /* FCP_STATUS byte 1 (reserved) */
68 uint8_t rspStatus2; /* FCP_STATUS byte 2 field validity */
69#define RSP_LEN_VALID 0x01 /* bit 0 */
70#define SNS_LEN_VALID 0x02 /* bit 1 */
71#define RESID_OVER 0x04 /* bit 2 */
72#define RESID_UNDER 0x08 /* bit 3 */
73 uint8_t rspStatus3; /* FCP_STATUS byte 3 SCSI status byte */
74
75 uint32_t rspResId; /* Residual xfer if residual count field set in
76 fcpStatus2 */
77 /* Received in Big Endian format */
78 uint32_t rspSnsLen; /* Length of sense data in fcpSnsInfo */
79 /* Received in Big Endian format */
80 uint32_t rspRspLen; /* Length of FCP response data in fcpRspInfo */
81 /* Received in Big Endian format */
82
83 uint8_t rspInfo0; /* FCP_RSP_INFO byte 0 (reserved) */
84 uint8_t rspInfo1; /* FCP_RSP_INFO byte 1 (reserved) */
85 uint8_t rspInfo2; /* FCP_RSP_INFO byte 2 (reserved) */
86 uint8_t rspInfo3; /* FCP_RSP_INFO RSP_CODE byte 3 */
87
88#define RSP_NO_FAILURE 0x00
89#define RSP_DATA_BURST_ERR 0x01
90#define RSP_CMD_FIELD_ERR 0x02
91#define RSP_RO_MISMATCH_ERR 0x03
92#define RSP_TM_NOT_SUPPORTED 0x04 /* Task mgmt function not supported */
93#define RSP_TM_NOT_COMPLETED 0x05 /* Task mgmt function not performed */
94#define RSP_TM_INVALID_LU 0x09 /* Task mgmt function to invalid LU */
95
96 uint32_t rspInfoRsvd; /* FCP_RSP_INFO bytes 4-7 (reserved) */
97
98 uint8_t rspSnsInfo[128];
99#define SNS_ILLEGAL_REQ 0x05 /* sense key is byte 3 ([2]) */
100#define SNSCOD_BADCMD 0x20 /* sense code is byte 13 ([12]) */
101};
102
103#define SIMPLE_Q 0x00
104#define HEAD_OF_Q 0x01
105#define ORDERED_Q 0x02
106#define ACA_Q 0x04
107#define UNTAGGED 0x05
108#define FCP_ABORT_TASK_SET 0x02 /* Bit 1 */
109#define FCP_CLEAR_TASK_SET 0x04 /* bit 2 */
110#define FCP_BUS_RESET 0x08 /* bit 3 */
111#define FCP_LUN_RESET 0x10 /* bit 4 */
112#define FCP_TARGET_RESET 0x20 /* bit 5 */
113#define FCP_CLEAR_ACA 0x40 /* bit 6 */
114#define FCP_TERMINATE_TASK 0x80 /* bit 7 */
115#define WRITE_DATA 0x01 /* Bit 0 */
116#define READ_DATA 0x02 /* Bit 1 */
117
118struct fcp_cmnd {
119 struct scsi_lun fcp_lun;
120
121 uint8_t fcpCntl0; /* FCP_CNTL byte 0 (reserved) */
122 uint8_t fcpCntl1; /* FCP_CNTL byte 1 task codes */
123 uint8_t fcpCntl2; /* FCP_CTL byte 2 task management codes */
124 uint8_t fcpCntl3;
125
126 uint8_t fcpCdb[LPFC_FCP_CDB_LEN]; /* SRB cdb field is copied here */
127 __be32 fcpDl; /* Total transfer length */
128
129};
130struct fcp_cmnd32 {
131 struct scsi_lun fcp_lun;
132
133 uint8_t fcpCntl0; /* FCP_CNTL byte 0 (reserved) */
134 uint8_t fcpCntl1; /* FCP_CNTL byte 1 task codes */
135 uint8_t fcpCntl2; /* FCP_CTL byte 2 task management codes */
136 uint8_t fcpCntl3;
137
138 uint8_t fcpCdb[LPFC_FCP_CDB_LEN_32]; /* SRB cdb field is copied here */
139 __be32 fcpDl; /* Total transfer length */
140
141};
142
143#define LPFC_SCSI_DMA_EXT_SIZE 264
144#define LPFC_BPL_SIZE 1024
145#define MDAC_DIRECT_CMD 0x22
146
147#define FIND_FIRST_OAS_LUN 0
148#define NO_MORE_OAS_LUN -1
149#define NOT_OAS_ENABLED_LUN NO_MORE_OAS_LUN
150
151#ifndef FC_PORTSPEED_128GBIT
152#define FC_PORTSPEED_128GBIT 0x2000
153#endif
154
155#ifndef FC_PORTSPEED_256GBIT
156#define FC_PORTSPEED_256GBIT 0x4000
157#endif
158
159#define TXRDY_PAYLOAD_LEN 12
160
161/* For sysfs/debugfs tmp string max len */
162#define LPFC_MAX_SCSI_INFO_TMP_LEN 79
163