1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2018 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 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 ********************************************************************/ 23 24 #define LPFC_NVME_DEFAULT_SEGS (64 + 1) /* 256K IOs */ 25 26 #define LPFC_NVME_ERSP_LEN 0x20 27 28 #define LPFC_NVME_WAIT_TMO 10 29 #define LPFC_NVME_EXPEDITE_XRICNT 8 30 #define LPFC_NVME_FB_SHIFT 9 31 #define LPFC_NVME_MAX_FB (1 << 20) /* 1M */ 32 33 #define LPFC_MAX_NVME_INFO_TMP_LEN 100 34 #define LPFC_NVME_INFO_MORE_STR "\nCould be more info...\n" 35 36 #define lpfc_ndlp_get_nrport(ndlp) \ 37 ((!ndlp->nrport || (ndlp->upcall_flags & NLP_WAIT_FOR_UNREG)) \ 38 ? NULL : ndlp->nrport) 39 40 struct lpfc_nvme_qhandle { 41 uint32_t index; /* WQ index to use */ 42 uint32_t qidx; /* queue index passed to create */ 43 uint32_t cpu_id; /* current cpu id at time of create */ 44 }; 45 46 /* Declare nvme-based local and remote port definitions. */ 47 struct lpfc_nvme_lport { 48 struct lpfc_vport *vport; 49 struct completion lport_unreg_done; 50 /* Add stats counters here */ 51 atomic_t fc4NvmeLsRequests; 52 atomic_t fc4NvmeLsCmpls; 53 atomic_t xmt_fcp_noxri; 54 atomic_t xmt_fcp_bad_ndlp; 55 atomic_t xmt_fcp_qdepth; 56 atomic_t xmt_fcp_wqerr; 57 atomic_t xmt_fcp_err; 58 atomic_t xmt_fcp_abort; 59 atomic_t xmt_ls_abort; 60 atomic_t xmt_ls_err; 61 atomic_t cmpl_fcp_xb; 62 atomic_t cmpl_fcp_err; 63 atomic_t cmpl_ls_xb; 64 atomic_t cmpl_ls_err; 65 }; 66 67 struct lpfc_nvme_rport { 68 struct lpfc_nvme_lport *lport; 69 struct nvme_fc_remote_port *remoteport; 70 struct lpfc_nodelist *ndlp; 71 struct completion rport_unreg_done; 72 }; 73 74 struct lpfc_nvme_buf { 75 /* Common fields */ 76 struct list_head list; 77 void *data; 78 dma_addr_t dma_handle; 79 dma_addr_t dma_phys_sgl; 80 struct sli4_sge *dma_sgl; 81 struct lpfc_iocbq cur_iocbq; 82 struct lpfc_sli4_hdw_queue *hdwq; 83 uint16_t hdwq_no; 84 uint16_t cpu; 85 86 /* NVME specific fields */ 87 struct nvmefc_fcp_req *nvmeCmd; 88 struct lpfc_nodelist *ndlp; 89 90 uint32_t timeout; 91 92 uint16_t flags; /* TBD convert exch_busy to flags */ 93 #define LPFC_SBUF_XBUSY 0x1 /* SLI4 hba reported XB on WCQE cmpl */ 94 #define LPFC_BUMP_QDEPTH 0x2 /* bumped queue depth counter */ 95 uint16_t exch_busy; /* SLI4 hba reported XB on complete WCQE */ 96 uint16_t status; /* From IOCB Word 7- ulpStatus */ 97 uint32_t result; /* From IOCB Word 4. */ 98 99 uint32_t seg_cnt; /* Number of scatter-gather segments returned by 100 * dma_map_sg. The driver needs this for calls 101 * to dma_unmap_sg. 102 */ 103 wait_queue_head_t *waitq; 104 unsigned long start_time; 105 106 uint16_t qidx; 107 108 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 109 uint64_t ts_cmd_start; 110 uint64_t ts_last_cmd; 111 uint64_t ts_cmd_wqput; 112 uint64_t ts_isr_cmpl; 113 uint64_t ts_data_nvme; 114 #endif 115 }; 116 117 struct lpfc_nvme_fcpreq_priv { 118 struct lpfc_nvme_buf *nvme_buf; 119 }; 120