/******************************************************************* * 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 * * Portions Copyright (C) 2004-2005 Christoph Hellwig * * * * 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. * ********************************************************************/ #define LPFC_NVME_DEFAULT_SEGS (64 + 1) /* 256K IOs */ #define LPFC_NVME_ERSP_LEN 0x20 #define LPFC_NVME_WAIT_TMO 10 #define LPFC_NVME_EXPEDITE_XRICNT 8 #define LPFC_NVME_FB_SHIFT 9 #define LPFC_NVME_MAX_FB (1 << 20) /* 1M */ #define lpfc_ndlp_get_nrport(ndlp) \ ((!ndlp->nrport || (ndlp->upcall_flags & NLP_WAIT_FOR_UNREG)) \ ? NULL : ndlp->nrport) struct lpfc_nvme_qhandle { uint32_t index; /* WQ index to use */ uint32_t qidx; /* queue index passed to create */ uint32_t cpu_id; /* current cpu id at time of create */ }; struct lpfc_nvme_ctrl_stat { atomic_t fc4NvmeInputRequests; atomic_t fc4NvmeOutputRequests; atomic_t fc4NvmeControlRequests; atomic_t fc4NvmeIoCmpls; }; /* Declare nvme-based local and remote port definitions. */ struct lpfc_nvme_lport { struct lpfc_vport *vport; struct completion lport_unreg_done; /* Add stats counters here */ struct lpfc_nvme_ctrl_stat *cstat; atomic_t fc4NvmeLsRequests; atomic_t fc4NvmeLsCmpls; atomic_t xmt_fcp_noxri; atomic_t xmt_fcp_bad_ndlp; atomic_t xmt_fcp_qdepth; atomic_t xmt_fcp_wqerr; atomic_t xmt_fcp_err; atomic_t xmt_fcp_abort; atomic_t xmt_ls_abort; atomic_t xmt_ls_err; atomic_t cmpl_fcp_xb; atomic_t cmpl_fcp_err; atomic_t cmpl_ls_xb; atomic_t cmpl_ls_err; }; struct lpfc_nvme_rport { struct lpfc_nvme_lport *lport; struct nvme_fc_remote_port *remoteport; struct lpfc_nodelist *ndlp; struct completion rport_unreg_done; }; struct lpfc_nvme_buf { /* Common fields */ struct list_head list; void *data; dma_addr_t dma_handle; dma_addr_t dma_phys_sgl; struct sli4_sge *dma_sgl; struct lpfc_iocbq cur_iocbq; /* NVME specific fields */ struct nvmefc_fcp_req *nvmeCmd; 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_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. */ wait_queue_head_t *waitq; unsigned long start_time; uint16_t qidx; #ifdef CONFIG_SCSI_LPFC_DEBUG_FS uint64_t ts_cmd_start; uint64_t ts_last_cmd; uint64_t ts_cmd_wqput; uint64_t ts_isr_cmpl; uint64_t ts_data_nvme; #endif }; struct lpfc_nvme_fcpreq_priv { struct lpfc_nvme_buf *nvme_buf; };