| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1 | /******************************************************************* |
| 2 | * This file is part of the Emulex Linux Device Driver for * |
James.Smart@Emulex.Com | c44ce17 | 2005-06-25 10:34:39 -0400 | [diff] [blame^] | 3 | * Fibre Channel Host Bus Adapters. * |
| 4 | * Copyright (C) 2004-2005 Emulex. All rights reserved. * |
| 5 | * EMULEX and SLI are trademarks of Emulex. * |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 6 | * www.emulex.com * |
| 7 | * * |
| 8 | * This program is free software; you can redistribute it and/or * |
James.Smart@Emulex.Com | c44ce17 | 2005-06-25 10:34:39 -0400 | [diff] [blame^] | 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. * |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 19 | *******************************************************************/ |
| 20 | |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 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 |