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 25 struct 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 */ 43 struct lpfc_rport_data { 44 struct lpfc_nodelist *pnode; /* Pointer to the node structure. */ 45 }; 46 47 struct lpfc_device_id { 48 struct lpfc_name vport_wwpn; 49 struct lpfc_name target_wwpn; 50 uint64_t lun; 51 }; 52 53 struct 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 62 struct 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 */ 117 118 struct 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 }; 130 struct 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 79 163 164