1895427bdSJames Smart /******************************************************************* 2895427bdSJames Smart * This file is part of the Emulex Linux Device Driver for * 3895427bdSJames Smart * Fibre Channel Host Bus Adapters. * 4895427bdSJames Smart * Copyright (C) 2004-2016 Emulex. All rights reserved. * 5895427bdSJames Smart * EMULEX and SLI are trademarks of Emulex. * 6895427bdSJames Smart * www.emulex.com * 7895427bdSJames Smart * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8895427bdSJames Smart * * 9895427bdSJames Smart * This program is free software; you can redistribute it and/or * 10895427bdSJames Smart * modify it under the terms of version 2 of the GNU General * 11895427bdSJames Smart * Public License as published by the Free Software Foundation. * 12895427bdSJames Smart * This program is distributed in the hope that it will be useful. * 13895427bdSJames Smart * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14895427bdSJames Smart * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15895427bdSJames Smart * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16895427bdSJames Smart * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17895427bdSJames Smart * TO BE LEGALLY INVALID. See the GNU General Public License for * 18895427bdSJames Smart * more details, a copy of which can be found in the file COPYING * 19895427bdSJames Smart * included with this package. * 20895427bdSJames Smart ********************************************************************/ 21895427bdSJames Smart 22895427bdSJames Smart #define LPFC_NVME_MIN_SEGS 16 23895427bdSJames Smart #define LPFC_NVME_DEFAULT_SEGS 66 /* 256K IOs - 64 + 2 */ 24895427bdSJames Smart #define LPFC_NVME_MAX_SEGS 510 25895427bdSJames Smart #define LPFC_NVMET_MIN_POSTBUF 16 26895427bdSJames Smart #define LPFC_NVMET_DEFAULT_POSTBUF 1024 27895427bdSJames Smart #define LPFC_NVMET_MAX_POSTBUF 4096 28895427bdSJames Smart #define LPFC_NVME_WQSIZE 256 29895427bdSJames Smart 30895427bdSJames Smart #define LPFC_NVME_ERSP_LEN 0x20 31895427bdSJames Smart 32895427bdSJames Smart /* Declare nvme-based local and remote port definitions. */ 33895427bdSJames Smart struct lpfc_nvme_lport { 34895427bdSJames Smart struct lpfc_vport *vport; 35895427bdSJames Smart struct list_head rport_list; 36895427bdSJames Smart struct completion lport_unreg_done; 37895427bdSJames Smart /* Add sttats counters here */ 38895427bdSJames Smart }; 39895427bdSJames Smart 40895427bdSJames Smart struct lpfc_nvme_rport { 41895427bdSJames Smart struct list_head list; 42895427bdSJames Smart struct lpfc_nvme_lport *lport; 43895427bdSJames Smart struct nvme_fc_remote_port *remoteport; 44895427bdSJames Smart struct lpfc_nodelist *ndlp; 45895427bdSJames Smart struct completion rport_unreg_done; 46895427bdSJames Smart }; 47895427bdSJames Smart 48895427bdSJames Smart struct lpfc_nvme_buf { 49895427bdSJames Smart struct list_head list; 50895427bdSJames Smart struct nvmefc_fcp_req *nvmeCmd; 51895427bdSJames Smart struct lpfc_nvme_rport *nrport; 52895427bdSJames Smart 53895427bdSJames Smart uint32_t timeout; 54895427bdSJames Smart 55895427bdSJames Smart uint16_t flags; /* TBD convert exch_busy to flags */ 56895427bdSJames Smart #define LPFC_SBUF_XBUSY 0x1 /* SLI4 hba reported XB on WCQE cmpl */ 57895427bdSJames Smart uint16_t exch_busy; /* SLI4 hba reported XB on complete WCQE */ 58895427bdSJames Smart uint16_t status; /* From IOCB Word 7- ulpStatus */ 59895427bdSJames Smart uint16_t cpu; 60895427bdSJames Smart uint16_t qidx; 61895427bdSJames Smart uint16_t sqid; 62895427bdSJames Smart uint32_t result; /* From IOCB Word 4. */ 63895427bdSJames Smart 64895427bdSJames Smart uint32_t seg_cnt; /* Number of scatter-gather segments returned by 65895427bdSJames Smart * dma_map_sg. The driver needs this for calls 66895427bdSJames Smart * to dma_unmap_sg. 67895427bdSJames Smart */ 68895427bdSJames Smart dma_addr_t nonsg_phys; /* Non scatter-gather physical address. */ 69895427bdSJames Smart 70895427bdSJames Smart /* 71895427bdSJames Smart * data and dma_handle are the kernel virtual and bus address of the 72895427bdSJames Smart * dma-able buffer containing the fcp_cmd, fcp_rsp and a scatter 73895427bdSJames Smart * gather bde list that supports the sg_tablesize value. 74895427bdSJames Smart */ 75895427bdSJames Smart void *data; 76895427bdSJames Smart dma_addr_t dma_handle; 77895427bdSJames Smart 78895427bdSJames Smart struct sli4_sge *nvme_sgl; 79895427bdSJames Smart dma_addr_t dma_phys_sgl; 80895427bdSJames Smart 81895427bdSJames Smart /* cur_iocbq has phys of the dma-able buffer. 82895427bdSJames Smart * Iotag is in here 83895427bdSJames Smart */ 84895427bdSJames Smart struct lpfc_iocbq cur_iocbq; 85895427bdSJames Smart 86895427bdSJames Smart wait_queue_head_t *waitq; 87895427bdSJames Smart unsigned long start_time; 88895427bdSJames Smart }; 89