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/*******************************************************************
* 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 {
struct list_head list;
struct nvmefc_fcp_req *nvmeCmd;
struct lpfc_nvme_rport *nrport;
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 status; /* From IOCB Word 7- ulpStatus */
uint16_t cpu;
uint16_t qidx;
uint16_t sqid;
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.
*/
dma_addr_t nonsg_phys; /* Non scatter-gather physical address. */
/*
* 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.
*/
void *data;
dma_addr_t dma_handle;
struct sli4_sge *nvme_sgl;
dma_addr_t dma_phys_sgl;
/* cur_iocbq has phys of the dma-able buffer.
* Iotag is in here
*/
struct lpfc_iocbq cur_iocbq;
wait_queue_head_t *waitq;
unsigned long start_time;
#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;
};
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