/******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * * Copyright (C) 2017-2018 Broadcom. All Rights Reserved. The term * * “Broadcom” refers to Broadcom Inc and/or its subsidiaries. * * Copyright (C) 2004-2016 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.broadcom.com * * * * This program is free software; you can redistribute it and/or * * modify it under the terms of version 2 of the GNU General * * Public License as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful. * * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * * TO BE LEGALLY INVALID. See the GNU General Public License for * * more details, a copy of which can be found in the file COPYING * * included with this package. * *******************************************************************/ #include struct lpfc_hba; #define LPFC_FCP_CDB_LEN 16 #define list_remove_head(list, entry, type, member) \ do { \ entry = NULL; \ if (!list_empty(list)) { \ entry = list_entry((list)->next, type, member); \ list_del_init(&entry->member); \ } \ } while(0) #define list_get_first(list, type, member) \ (list_empty(list)) ? NULL : \ list_entry((list)->next, type, member) /* per-port data that is allocated in the FC transport for us */ struct lpfc_rport_data { struct lpfc_nodelist *pnode; /* Pointer to the node structure. */ }; struct lpfc_device_id { struct lpfc_name vport_wwpn; struct lpfc_name target_wwpn; uint64_t lun; }; struct lpfc_device_data { struct list_head listentry; struct lpfc_rport_data *rport_data; struct lpfc_device_id device_id; uint8_t priority; bool oas_enabled; bool available; }; struct fcp_rsp { uint32_t rspRsvd1; /* FC Word 0, byte 0:3 */ uint32_t rspRsvd2; /* FC Word 1, byte 0:3 */ uint8_t rspStatus0; /* FCP_STATUS byte 0 (reserved) */ uint8_t rspStatus1; /* FCP_STATUS byte 1 (reserved) */ uint8_t rspStatus2; /* FCP_STATUS byte 2 field validity */ #define RSP_LEN_VALID 0x01 /* bit 0 */ #define SNS_LEN_VALID 0x02 /* bit 1 */ #define RESID_OVER 0x04 /* bit 2 */ #define RESID_UNDER 0x08 /* bit 3 */ uint8_t rspStatus3; /* FCP_STATUS byte 3 SCSI status byte */ uint32_t rspResId; /* Residual xfer if residual count field set in fcpStatus2 */ /* Received in Big Endian format */ uint32_t rspSnsLen; /* Length of sense data in fcpSnsInfo */ /* Received in Big Endian format */ uint32_t rspRspLen; /* Length of FCP response data in fcpRspInfo */ /* Received in Big Endian format */ uint8_t rspInfo0; /* FCP_RSP_INFO byte 0 (reserved) */ uint8_t rspInfo1; /* FCP_RSP_INFO byte 1 (reserved) */ uint8_t rspInfo2; /* FCP_RSP_INFO byte 2 (reserved) */ uint8_t rspInfo3; /* FCP_RSP_INFO RSP_CODE byte 3 */ #define RSP_NO_FAILURE 0x00 #define RSP_DATA_BURST_ERR 0x01 #define RSP_CMD_FIELD_ERR 0x02 #define RSP_RO_MISMATCH_ERR 0x03 #define RSP_TM_NOT_SUPPORTED 0x04 /* Task mgmt function not supported */ #define RSP_TM_NOT_COMPLETED 0x05 /* Task mgmt function not performed */ #define RSP_TM_INVALID_LU 0x09 /* Task mgmt function to invalid LU */ uint32_t rspInfoRsvd; /* FCP_RSP_INFO bytes 4-7 (reserved) */ uint8_t rspSnsInfo[128]; #define SNS_ILLEGAL_REQ 0x05 /* sense key is byte 3 ([2]) */ #define SNSCOD_BADCMD 0x20 /* sense code is byte 13 ([12]) */ }; struct fcp_cmnd { struct scsi_lun fcp_lun; uint8_t fcpCntl0; /* FCP_CNTL byte 0 (reserved) */ uint8_t fcpCntl1; /* FCP_CNTL byte 1 task codes */ #define SIMPLE_Q 0x00 #define HEAD_OF_Q 0x01 #define ORDERED_Q 0x02 #define ACA_Q 0x04 #define UNTAGGED 0x05 uint8_t fcpCntl2; /* FCP_CTL byte 2 task management codes */ #define FCP_ABORT_TASK_SET 0x02 /* Bit 1 */ #define FCP_CLEAR_TASK_SET 0x04 /* bit 2 */ #define FCP_BUS_RESET 0x08 /* bit 3 */ #define FCP_LUN_RESET 0x10 /* bit 4 */ #define FCP_TARGET_RESET 0x20 /* bit 5 */ #define FCP_CLEAR_ACA 0x40 /* bit 6 */ #define FCP_TERMINATE_TASK 0x80 /* bit 7 */ uint8_t fcpCntl3; #define WRITE_DATA 0x01 /* Bit 0 */ #define READ_DATA 0x02 /* Bit 1 */ uint8_t fcpCdb[LPFC_FCP_CDB_LEN]; /* SRB cdb field is copied here */ uint32_t fcpDl; /* Total transfer length */ }; struct lpfc_scsicmd_bkt { uint32_t cmd_count; }; struct lpfc_scsi_buf { /* Common fields */ struct list_head list; void *data; dma_addr_t dma_handle; dma_addr_t dma_phys_sgl; struct ulp_bde64 *dma_sgl; struct lpfc_iocbq cur_iocbq; /* SCSI specific fields */ struct scsi_cmnd *pCmd; struct lpfc_rport_data *rdata; struct lpfc_nodelist *ndlp; uint32_t timeout; uint16_t flags; /* TBD convert exch_busy to flags */ #define LPFC_SBUF_XBUSY 0x1 /* SLI4 hba reported XB on WCQE cmpl */ #define LPFC_SBUF_BUMP_QDEPTH 0x2 /* bumped queue depth counter */ uint16_t exch_busy; /* SLI4 hba reported XB on complete WCQE */ uint16_t cpu; uint16_t status; /* From IOCB Word 7- ulpStatus */ uint32_t result; /* From IOCB Word 4. */ uint32_t seg_cnt; /* Number of scatter-gather segments returned by * dma_map_sg. The driver needs this for calls * to dma_unmap_sg. */ uint32_t prot_seg_cnt; /* seg_cnt's counterpart for protection data */ /* * data and dma_handle are the kernel virtual and bus address of the * dma-able buffer containing the fcp_cmd, fcp_rsp and a scatter * gather bde list that supports the sg_tablesize value. */ struct fcp_cmnd *fcp_cmnd; struct fcp_rsp *fcp_rsp; wait_queue_head_t *waitq; unsigned long start_time; #ifdef CONFIG_SCSI_LPFC_DEBUG_FS /* Used to restore any changes to protection data for error injection */ void *prot_data_segment; uint32_t prot_data; uint32_t prot_data_type; #define LPFC_INJERR_REFTAG 1 #define LPFC_INJERR_APPTAG 2 #define LPFC_INJERR_GUARD 3 #endif }; #define LPFC_SCSI_DMA_EXT_SIZE 264 #define LPFC_BPL_SIZE 1024 #define MDAC_DIRECT_CMD 0x22 #define FIND_FIRST_OAS_LUN 0 #define NO_MORE_OAS_LUN -1 #define NOT_OAS_ENABLED_LUN NO_MORE_OAS_LUN #ifndef FC_PORTSPEED_128GBIT #define FC_PORTSPEED_128GBIT 0x2000 #endif #define TXRDY_PAYLOAD_LEN 12 int lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd);