1dea3101eS /******************************************************************* 2dea3101eS * This file is part of the Emulex Linux Device Driver for * 3c44ce173SJames.Smart@Emulex.Com * Fibre Channel Host Bus Adapters. * 4d080abe0SJames Smart * Copyright (C) 2017 Broadcom. All Rights Reserved. The term * 5d080abe0SJames Smart * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. * 651f4ca3cSJames Smart * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7c44ce173SJames.Smart@Emulex.Com * EMULEX and SLI are trademarks of Emulex. * 8d080abe0SJames Smart * www.broadcom.com * 9dea3101eS * * 10dea3101eS * This program is free software; you can redistribute it and/or * 11c44ce173SJames.Smart@Emulex.Com * modify it under the terms of version 2 of the GNU General * 12c44ce173SJames.Smart@Emulex.Com * Public License as published by the Free Software Foundation. * 13c44ce173SJames.Smart@Emulex.Com * This program is distributed in the hope that it will be useful. * 14c44ce173SJames.Smart@Emulex.Com * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 15c44ce173SJames.Smart@Emulex.Com * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 16c44ce173SJames.Smart@Emulex.Com * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 17c44ce173SJames.Smart@Emulex.Com * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 18c44ce173SJames.Smart@Emulex.Com * TO BE LEGALLY INVALID. See the GNU General Public License for * 19c44ce173SJames.Smart@Emulex.Com * more details, a copy of which can be found in the file COPYING * 20c44ce173SJames.Smart@Emulex.Com * included with this package. * 21dea3101eS *******************************************************************/ 22dea3101eS 2344456d37SOlaf Hering #include <asm/byteorder.h> 2444456d37SOlaf Hering 25dea3101eS struct lpfc_hba; 26df9e1b59SJames Smart #define LPFC_FCP_CDB_LEN 16 27dea3101eS 28dea3101eS #define list_remove_head(list, entry, type, member) \ 29286fc8f8SJames Bottomley do { \ 30286fc8f8SJames Bottomley entry = NULL; \ 31dea3101eS if (!list_empty(list)) { \ 32dea3101eS entry = list_entry((list)->next, type, member); \ 33dea3101eS list_del_init(&entry->member); \ 34286fc8f8SJames Bottomley } \ 35286fc8f8SJames Bottomley } while(0) 36dea3101eS 37dea3101eS #define list_get_first(list, type, member) \ 38dea3101eS (list_empty(list)) ? NULL : \ 39dea3101eS list_entry((list)->next, type, member) 40dea3101eS 41dea3101eS /* per-port data that is allocated in the FC transport for us */ 42dea3101eS struct lpfc_rport_data { 43dea3101eS struct lpfc_nodelist *pnode; /* Pointer to the node structure. */ 44dea3101eS }; 45dea3101eS 461ba981fdSJames Smart struct lpfc_device_id { 471ba981fdSJames Smart struct lpfc_name vport_wwpn; 481ba981fdSJames Smart struct lpfc_name target_wwpn; 491ba981fdSJames Smart uint64_t lun; 501ba981fdSJames Smart }; 511ba981fdSJames Smart 521ba981fdSJames Smart struct lpfc_device_data { 531ba981fdSJames Smart struct list_head listentry; 541ba981fdSJames Smart struct lpfc_rport_data *rport_data; 551ba981fdSJames Smart struct lpfc_device_id device_id; 56c92c841cSJames Smart uint8_t priority; 571ba981fdSJames Smart bool oas_enabled; 581ba981fdSJames Smart bool available; 591ba981fdSJames Smart }; 601ba981fdSJames Smart 61dea3101eS struct fcp_rsp { 62dea3101eS uint32_t rspRsvd1; /* FC Word 0, byte 0:3 */ 63dea3101eS uint32_t rspRsvd2; /* FC Word 1, byte 0:3 */ 64dea3101eS 65dea3101eS uint8_t rspStatus0; /* FCP_STATUS byte 0 (reserved) */ 66dea3101eS uint8_t rspStatus1; /* FCP_STATUS byte 1 (reserved) */ 67dea3101eS uint8_t rspStatus2; /* FCP_STATUS byte 2 field validity */ 68dea3101eS #define RSP_LEN_VALID 0x01 /* bit 0 */ 69dea3101eS #define SNS_LEN_VALID 0x02 /* bit 1 */ 70dea3101eS #define RESID_OVER 0x04 /* bit 2 */ 71dea3101eS #define RESID_UNDER 0x08 /* bit 3 */ 72dea3101eS uint8_t rspStatus3; /* FCP_STATUS byte 3 SCSI status byte */ 73dea3101eS 74dea3101eS uint32_t rspResId; /* Residual xfer if residual count field set in 75dea3101eS fcpStatus2 */ 76dea3101eS /* Received in Big Endian format */ 77dea3101eS uint32_t rspSnsLen; /* Length of sense data in fcpSnsInfo */ 78dea3101eS /* Received in Big Endian format */ 79dea3101eS uint32_t rspRspLen; /* Length of FCP response data in fcpRspInfo */ 80dea3101eS /* Received in Big Endian format */ 81dea3101eS 82dea3101eS uint8_t rspInfo0; /* FCP_RSP_INFO byte 0 (reserved) */ 83dea3101eS uint8_t rspInfo1; /* FCP_RSP_INFO byte 1 (reserved) */ 84dea3101eS uint8_t rspInfo2; /* FCP_RSP_INFO byte 2 (reserved) */ 85dea3101eS uint8_t rspInfo3; /* FCP_RSP_INFO RSP_CODE byte 3 */ 86dea3101eS 87dea3101eS #define RSP_NO_FAILURE 0x00 88dea3101eS #define RSP_DATA_BURST_ERR 0x01 89dea3101eS #define RSP_CMD_FIELD_ERR 0x02 90dea3101eS #define RSP_RO_MISMATCH_ERR 0x03 91dea3101eS #define RSP_TM_NOT_SUPPORTED 0x04 /* Task mgmt function not supported */ 92dea3101eS #define RSP_TM_NOT_COMPLETED 0x05 /* Task mgmt function not performed */ 9353151bbbSJames Smart #define RSP_TM_INVALID_LU 0x09 /* Task mgmt function to invalid LU */ 94dea3101eS 95dea3101eS uint32_t rspInfoRsvd; /* FCP_RSP_INFO bytes 4-7 (reserved) */ 96dea3101eS 97dea3101eS uint8_t rspSnsInfo[128]; 98dea3101eS #define SNS_ILLEGAL_REQ 0x05 /* sense key is byte 3 ([2]) */ 99dea3101eS #define SNSCOD_BADCMD 0x20 /* sense code is byte 13 ([12]) */ 100dea3101eS }; 101dea3101eS 102dea3101eS struct fcp_cmnd { 10391886523SJames.Smart@Emulex.Com struct scsi_lun fcp_lun; 104dea3101eS 105dea3101eS uint8_t fcpCntl0; /* FCP_CNTL byte 0 (reserved) */ 106dea3101eS uint8_t fcpCntl1; /* FCP_CNTL byte 1 task codes */ 107dea3101eS #define SIMPLE_Q 0x00 108dea3101eS #define HEAD_OF_Q 0x01 109dea3101eS #define ORDERED_Q 0x02 110dea3101eS #define ACA_Q 0x04 111dea3101eS #define UNTAGGED 0x05 112dea3101eS uint8_t fcpCntl2; /* FCP_CTL byte 2 task management codes */ 113dea3101eS #define FCP_ABORT_TASK_SET 0x02 /* Bit 1 */ 114dea3101eS #define FCP_CLEAR_TASK_SET 0x04 /* bit 2 */ 115dea3101eS #define FCP_BUS_RESET 0x08 /* bit 3 */ 116dea3101eS #define FCP_LUN_RESET 0x10 /* bit 4 */ 117dea3101eS #define FCP_TARGET_RESET 0x20 /* bit 5 */ 118dea3101eS #define FCP_CLEAR_ACA 0x40 /* bit 6 */ 119dea3101eS #define FCP_TERMINATE_TASK 0x80 /* bit 7 */ 120dea3101eS uint8_t fcpCntl3; 121dea3101eS #define WRITE_DATA 0x01 /* Bit 0 */ 122dea3101eS #define READ_DATA 0x02 /* Bit 1 */ 123dea3101eS 124df9e1b59SJames Smart uint8_t fcpCdb[LPFC_FCP_CDB_LEN]; /* SRB cdb field is copied here */ 125dea3101eS uint32_t fcpDl; /* Total transfer length */ 126dea3101eS 127dea3101eS }; 128dea3101eS 129ea2151b4SJames Smart struct lpfc_scsicmd_bkt { 130ea2151b4SJames Smart uint32_t cmd_count; 131ea2151b4SJames Smart }; 132ea2151b4SJames Smart 133dea3101eS struct lpfc_scsi_buf { 134dea3101eS struct list_head list; 135dea3101eS struct scsi_cmnd *pCmd; 136dea3101eS struct lpfc_rport_data *rdata; 137dea3101eS 138dea3101eS uint32_t timeout; 139dea3101eS 140895427bdSJames Smart uint16_t flags; /* TBD convert exch_busy to flags */ 141895427bdSJames Smart #define LPFC_SBUF_XBUSY 0x1 /* SLI4 hba reported XB on WCQE cmpl */ 142341af102SJames Smart uint16_t exch_busy; /* SLI4 hba reported XB on complete WCQE */ 143dea3101eS uint16_t status; /* From IOCB Word 7- ulpStatus */ 144dea3101eS uint32_t result; /* From IOCB Word 4. */ 145dea3101eS 146dea3101eS uint32_t seg_cnt; /* Number of scatter-gather segments returned by 147dea3101eS * dma_map_sg. The driver needs this for calls 148dea3101eS * to dma_unmap_sg. */ 149e2a0a9d6SJames Smart uint32_t prot_seg_cnt; /* seg_cnt's counterpart for protection data */ 150e2a0a9d6SJames Smart 151dea3101eS dma_addr_t nonsg_phys; /* Non scatter-gather physical address. */ 152dea3101eS 153dea3101eS /* 15425985edcSLucas De Marchi * data and dma_handle are the kernel virtual and bus address of the 155dea3101eS * dma-able buffer containing the fcp_cmd, fcp_rsp and a scatter 156dea3101eS * gather bde list that supports the sg_tablesize value. 157dea3101eS */ 158dea3101eS void *data; 159dea3101eS dma_addr_t dma_handle; 160dea3101eS 161dea3101eS struct fcp_cmnd *fcp_cmnd; 162dea3101eS struct fcp_rsp *fcp_rsp; 163dea3101eS struct ulp_bde64 *fcp_bpl; 164dea3101eS 165da0436e9SJames Smart dma_addr_t dma_phys_bpl; 166da0436e9SJames Smart 167dea3101eS /* cur_iocbq has phys of the dma-able buffer. 168dea3101eS * Iotag is in here 169dea3101eS */ 170dea3101eS struct lpfc_iocbq cur_iocbq; 171895427bdSJames Smart uint16_t cpu; 172895427bdSJames Smart 173fa61a54eSJames Smart wait_queue_head_t *waitq; 174977b5a0aSJames Smart unsigned long start_time; 1759a6b09c0SJames Smart 1769a6b09c0SJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1779a6b09c0SJames Smart /* Used to restore any changes to protection data for error injection */ 1789a6b09c0SJames Smart void *prot_data_segment; 1799a6b09c0SJames Smart uint32_t prot_data; 1809a6b09c0SJames Smart uint32_t prot_data_type; 1819a6b09c0SJames Smart #define LPFC_INJERR_REFTAG 1 1829a6b09c0SJames Smart #define LPFC_INJERR_APPTAG 2 1839a6b09c0SJames Smart #define LPFC_INJERR_GUARD 3 1849a6b09c0SJames Smart #endif 185dea3101eS }; 186dea3101eS 187dea3101eS #define LPFC_SCSI_DMA_EXT_SIZE 264 188dea3101eS #define LPFC_BPL_SIZE 1024 189dea3101eS #define MDAC_DIRECT_CMD 0x22 1901ba981fdSJames Smart 1911ba981fdSJames Smart #define FIND_FIRST_OAS_LUN 0 1921ba981fdSJames Smart #define NO_MORE_OAS_LUN -1 1931ba981fdSJames Smart #define NOT_OAS_ENABLED_LUN NO_MORE_OAS_LUN 1948b0dff14SJames Smart 195895427bdSJames Smart #define TXRDY_PAYLOAD_LEN 12 196895427bdSJames Smart 1978b0dff14SJames Smart int lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba, 1988b0dff14SJames Smart struct lpfc_scsi_buf *lpfc_cmd); 199