| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| James Smart | 743 | 99.73% | 22 | 95.65% |
| Ewan D. Milne | 2 | 0.27% | 1 | 4.35% |
| Total | 745 | 23 |
/******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * * Copyright (C) 2017-2021 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. * ********************************************************************/ #include <linux/nvme.h> #include <linux/nvme-fc-driver.h> #include <linux/nvme-fc.h> #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->fc4_xpt_flags & NVME_XPT_UNREG_WAIT))\ ? 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 */ }; /* Declare nvme-based local and remote port definitions. */ struct lpfc_nvme_lport { struct lpfc_vport *vport; struct completion *lport_unreg_cmp; /* Add stats counters here */ 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_fcpreq_priv { struct lpfc_io_buf *nvme_buf; }; /* * set NVME LS request timeouts to 30s. It is larger than the 2*R_A_TOV * set by the spec, which appears to have issues with some devices. */ #define LPFC_NVME_LS_TIMEOUT 30 #define LPFC_NVMET_DEFAULT_SEGS (64 + 1) /* 256K IOs */ #define LPFC_NVMET_RQE_MIN_POST 128 #define LPFC_NVMET_RQE_DEF_POST 512 #define LPFC_NVMET_RQE_DEF_COUNT 2048 #define LPFC_NVMET_SUCCESS_LEN 12 #define LPFC_NVMET_MRQ_AUTO 0 #define LPFC_NVMET_MRQ_MAX 16 #define LPFC_NVMET_WAIT_TMO (5 * MSEC_PER_SEC) /* Used for NVME Target */ #define LPFC_NVMET_INV_HOST_ACTIVE 1 struct lpfc_nvmet_tgtport { struct lpfc_hba *phba; struct completion *tport_unreg_cmp; atomic_t state; /* tracks nvmet hosthandle invalidation */ /* Stats counters - lpfc_nvmet_unsol_ls_buffer */ atomic_t rcv_ls_req_in; atomic_t rcv_ls_req_out; atomic_t rcv_ls_req_drop; atomic_t xmt_ls_abort; atomic_t xmt_ls_abort_cmpl; /* Stats counters - lpfc_nvmet_xmt_ls_rsp */ atomic_t xmt_ls_rsp; atomic_t xmt_ls_drop; /* Stats counters - lpfc_nvmet_xmt_ls_rsp_cmp */ atomic_t xmt_ls_rsp_error; atomic_t xmt_ls_rsp_aborted; atomic_t xmt_ls_rsp_xb_set; atomic_t xmt_ls_rsp_cmpl; /* Stats counters - lpfc_nvmet_unsol_fcp_buffer */ atomic_t rcv_fcp_cmd_in; atomic_t rcv_fcp_cmd_out; atomic_t rcv_fcp_cmd_drop; atomic_t rcv_fcp_cmd_defer; atomic_t xmt_fcp_release; /* Stats counters - lpfc_nvmet_xmt_fcp_op */ atomic_t xmt_fcp_drop; atomic_t xmt_fcp_read_rsp; atomic_t xmt_fcp_read; atomic_t xmt_fcp_write; atomic_t xmt_fcp_rsp; /* Stats counters - lpfc_nvmet_xmt_fcp_op_cmp */ atomic_t xmt_fcp_rsp_xb_set; atomic_t xmt_fcp_rsp_cmpl; atomic_t xmt_fcp_rsp_error; atomic_t xmt_fcp_rsp_aborted; atomic_t xmt_fcp_rsp_drop; /* Stats counters - lpfc_nvmet_xmt_fcp_abort */ atomic_t xmt_fcp_xri_abort_cqe; atomic_t xmt_fcp_abort; atomic_t xmt_fcp_abort_cmpl; atomic_t xmt_abort_sol; atomic_t xmt_abort_unsol; atomic_t xmt_abort_rsp; atomic_t xmt_abort_rsp_error; /* Stats counters - defer IO */ atomic_t defer_ctx; atomic_t defer_fod; atomic_t defer_wqfull; }; struct lpfc_nvmet_ctx_info { struct list_head nvmet_ctx_list; spinlock_t nvmet_ctx_list_lock; /* lock per CPU */ struct lpfc_nvmet_ctx_info *nvmet_ctx_next_cpu; struct lpfc_nvmet_ctx_info *nvmet_ctx_start_cpu; uint16_t nvmet_ctx_list_cnt; char pad[16]; /* pad to a cache-line */ }; /* This retrieves the context info associated with the specified cpu / mrq */ #define lpfc_get_ctx_list(phba, cpu, mrq) \ (phba->sli4_hba.nvmet_ctx_info + ((cpu * phba->cfg_nvmet_mrq) + mrq)) /* Values for state field of struct lpfc_async_xchg_ctx */ #define LPFC_NVME_STE_LS_RCV 1 #define LPFC_NVME_STE_LS_ABORT 2 #define LPFC_NVME_STE_LS_RSP 3 #define LPFC_NVME_STE_RCV 4 #define LPFC_NVME_STE_DATA 5 #define LPFC_NVME_STE_ABORT 6 #define LPFC_NVME_STE_DONE 7 #define LPFC_NVME_STE_FREE 0xff /* Values for flag field of struct lpfc_async_xchg_ctx */ #define LPFC_NVME_IO_INP 0x1 /* IO is in progress on exchange */ #define LPFC_NVME_ABORT_OP 0x2 /* Abort WQE issued on exchange */ #define LPFC_NVME_XBUSY 0x4 /* XB bit set on IO cmpl */ #define LPFC_NVME_CTX_RLS 0x8 /* ctx free requested */ #define LPFC_NVME_ABTS_RCV 0x10 /* ABTS received on exchange */ #define LPFC_NVME_CTX_REUSE_WQ 0x20 /* ctx reused via WQ */ #define LPFC_NVME_DEFER_WQFULL 0x40 /* Waiting on a free WQE */ #define LPFC_NVME_TNOTIFY 0x80 /* notify transport of abts */ struct lpfc_async_xchg_ctx { union { struct nvmefc_tgt_fcp_req fcp_req; } hdlrctx; struct list_head list; struct lpfc_hba *phba; struct lpfc_nodelist *ndlp; struct nvmefc_ls_req *ls_req; struct nvmefc_ls_rsp ls_rsp; struct lpfc_iocbq *wqeq; struct lpfc_iocbq *abort_wqeq; spinlock_t ctxlock; /* protect flag access */ uint32_t sid; uint32_t offset; uint16_t oxid; uint16_t size; uint16_t entry_cnt; uint16_t cpu; uint16_t idx; uint16_t state; uint16_t flag; void *payload; struct rqb_dmabuf *rqb_buffer; struct lpfc_nvmet_ctxbuf *ctxbuf; struct lpfc_sli4_hdw_queue *hdwq; #ifdef CONFIG_SCSI_LPFC_DEBUG_FS uint64_t ts_isr_cmd; uint64_t ts_cmd_nvme; uint64_t ts_nvme_data; uint64_t ts_data_wqput; uint64_t ts_isr_data; uint64_t ts_data_nvme; uint64_t ts_nvme_status; uint64_t ts_status_wqput; uint64_t ts_isr_status; uint64_t ts_status_nvme; #endif }; /* routines found in lpfc_nvme.c */ int __lpfc_nvme_ls_req(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, struct nvmefc_ls_req *pnvme_lsreq, void (*gen_req_cmp)(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe, struct lpfc_wcqe_complete *wcqe)); void __lpfc_nvme_ls_req_cmp(struct lpfc_hba *phba, struct lpfc_vport *vport, struct lpfc_iocbq *cmdwqe, struct lpfc_wcqe_complete *wcqe); int __lpfc_nvme_ls_abort(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, struct nvmefc_ls_req *pnvme_lsreq); /* routines found in lpfc_nvmet.c */ int lpfc_nvme_unsol_ls_issue_abort(struct lpfc_hba *phba, struct lpfc_async_xchg_ctx *ctxp, uint32_t sid, uint16_t xri); int __lpfc_nvme_xmt_ls_rsp(struct lpfc_async_xchg_ctx *axchg, struct nvmefc_ls_rsp *ls_rsp, void (*xmt_ls_rsp_cmp)(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe, struct lpfc_wcqe_complete *wcqe)); void __lpfc_nvme_xmt_ls_rsp_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe, struct lpfc_wcqe_complete *wcqe);
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