| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| James Smart | 424 | 55.06% | 32 | 88.89% |
| James Bottomley | 320 | 41.56% | 1 | 2.78% |
| Jamie Wellnitz | 21 | 2.73% | 2 | 5.56% |
| Dick Kennedy | 5 | 0.65% | 1 | 2.78% |
| Total | 770 | 36 |
/******************************************************************* * 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) 2004-2013 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.broadcom.com * * * * 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 FC_MAX_HOLD_RSCN 32 /* max number of deferred RSCNs */ #define FC_MAX_NS_RSP 64512 /* max size NameServer rsp */ #define FC_MAXLOOP 126 /* max devices supported on a fc loop */ #define LPFC_DISC_FLOGI_TMO 10 /* Discovery FLOGI ratov */ /* This is the protocol dependent definition for a Node List Entry. * This is used by Fibre Channel protocol to support FCP. */ /* worker thread events */ enum lpfc_work_type { LPFC_EVT_ONLINE, LPFC_EVT_OFFLINE_PREP, LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL, LPFC_EVT_ELS_RETRY, LPFC_EVT_DEV_LOSS, LPFC_EVT_FASTPATH_MGMT_EVT, LPFC_EVT_RESET_HBA, }; /* structure used to queue event to the discovery tasklet */ struct lpfc_work_evt { struct list_head evt_listp; void *evt_arg1; void *evt_arg2; enum lpfc_work_type evt; }; struct lpfc_scsi_check_condition_event; struct lpfc_scsi_varqueuedepth_event; struct lpfc_scsi_event_header; struct lpfc_fabric_event_header; struct lpfc_fcprdchkerr_event; /* structure used for sending events from fast path */ struct lpfc_fast_path_event { struct lpfc_work_evt work_evt; struct lpfc_vport *vport; union { struct lpfc_scsi_check_condition_event check_cond_evt; struct lpfc_scsi_varqueuedepth_event queue_depth_evt; struct lpfc_scsi_event_header scsi_evt; struct lpfc_fabric_event_header fabric_evt; struct lpfc_fcprdchkerr_event read_check_error; } un; }; #define LPFC_SLI4_MAX_XRI 1024 /* Used to make the ndlp's xri_bitmap */ #define XRI_BITMAP_ULONGS (LPFC_SLI4_MAX_XRI / BITS_PER_LONG) struct lpfc_node_rrqs { unsigned long xri_bitmap[XRI_BITMAP_ULONGS]; }; struct lpfc_nodelist { struct list_head nlp_listp; struct lpfc_name nlp_portname; struct lpfc_name nlp_nodename; uint32_t nlp_flag; /* entry flags */ uint32_t nlp_DID; /* FC D_ID of entry */ uint32_t nlp_last_elscmd; /* Last ELS cmd sent */ uint16_t nlp_type; #define NLP_FC_NODE 0x1 /* entry is an FC node */ #define NLP_FABRIC 0x4 /* entry rep a Fabric entity */ #define NLP_FCP_TARGET 0x8 /* entry is an FCP target */ #define NLP_FCP_INITIATOR 0x10 /* entry is an FCP Initiator */ #define NLP_NVME_TARGET 0x20 /* entry is a NVME Target */ #define NLP_NVME_INITIATOR 0x40 /* entry is a NVME Initiator */ #define NLP_NVME_DISCOVERY 0x80 /* entry has NVME disc srvc */ uint16_t nlp_fc4_type; /* FC types node supports. */ /* Assigned from GID_FF, only * FCP (0x8) and NVME (0x28) * supported. */ #define NLP_FC4_NONE 0x0 #define NLP_FC4_FCP 0x1 /* FC4 Type FCP (value x8)) */ #define NLP_FC4_NVME 0x2 /* FC4 TYPE NVME (value x28) */ uint16_t nlp_rpi; uint16_t nlp_state; /* state transition indicator */ uint16_t nlp_prev_state; /* state transition indicator */ uint16_t nlp_xri; /* output exchange id for RPI */ uint16_t nlp_sid; /* scsi id */ #define NLP_NO_SID 0xffff uint16_t nlp_maxframe; /* Max RCV frame size */ uint8_t nlp_class_sup; /* Supported Classes */ uint8_t nlp_retry; /* used for ELS retries */ uint8_t nlp_fcp_info; /* class info, bits 0-3 */ #define NLP_FCP_2_DEVICE 0x10 /* FCP-2 device */ uint16_t nlp_usg_map; /* ndlp management usage bitmap */ #define NLP_USG_NODE_ACT_BIT 0x1 /* Indicate ndlp is actively used */ #define NLP_USG_IACT_REQ_BIT 0x2 /* Request to inactivate ndlp */ #define NLP_USG_FREE_REQ_BIT 0x4 /* Request to invoke ndlp memory free */ #define NLP_USG_FREE_ACK_BIT 0x8 /* Indicate ndlp memory free invoked */ struct timer_list nlp_delayfunc; /* Used for delayed ELS cmds */ struct lpfc_hba *phba; struct fc_rport *rport; /* scsi_transport_fc port structure */ struct lpfc_nvme_rport *nrport; /* nvme transport rport struct. */ struct lpfc_vport *vport; struct lpfc_work_evt els_retry_evt; struct lpfc_work_evt dev_loss_evt; struct kref kref; atomic_t cmd_pending; uint32_t cmd_qdepth; unsigned long last_change_time; unsigned long *active_rrqs_xri_bitmap; struct lpfc_scsicmd_bkt *lat_data; /* Latency data */ uint32_t fc4_prli_sent; uint32_t upcall_flags; #define NLP_WAIT_FOR_UNREG 0x1 uint32_t nvme_fb_size; /* NVME target's supported byte cnt */ #define NVME_FB_BIT_SHIFT 9 /* PRLI Rsp first burst in 512B units. */ uint32_t nlp_defer_did; }; struct lpfc_node_rrq { struct list_head list; uint16_t xritag; uint16_t send_rrq; uint16_t rxid; uint32_t nlp_DID; /* FC D_ID of entry */ struct lpfc_vport *vport; struct lpfc_nodelist *ndlp; unsigned long rrq_stop_time; }; #define lpfc_ndlp_check_qdepth(phba, ndlp) \ (ndlp->cmd_qdepth < phba->sli4_hba.max_cfg_param.max_xri) /* Defines for nlp_flag (uint32) */ #define NLP_IGNR_REG_CMPL 0x00000001 /* Rcvd rscn before we cmpl reg login */ #define NLP_REG_LOGIN_SEND 0x00000002 /* sent reglogin to adapter */ #define NLP_SUPPRESS_RSP 0x00000010 /* Remote NPort supports suppress rsp */ #define NLP_PLOGI_SND 0x00000020 /* sent PLOGI request for this entry */ #define NLP_PRLI_SND 0x00000040 /* sent PRLI request for this entry */ #define NLP_ADISC_SND 0x00000080 /* sent ADISC request for this entry */ #define NLP_LOGO_SND 0x00000100 /* sent LOGO request for this entry */ #define NLP_RNID_SND 0x00000400 /* sent RNID request for this entry */ #define NLP_ELS_SND_MASK 0x000007e0 /* sent ELS request for this entry */ #define NLP_NVMET_RECOV 0x00001000 /* NVMET auditing node for recovery. */ #define NLP_FCP_PRLI_RJT 0x00002000 /* Rport does not support FCP PRLI. */ #define NLP_UNREG_INP 0x00008000 /* UNREG_RPI cmd is in progress */ #define NLP_DEFER_RM 0x00010000 /* Remove this ndlp if no longer used */ #define NLP_DELAY_TMO 0x00020000 /* delay timeout is running for node */ #define NLP_NPR_2B_DISC 0x00040000 /* node is included in num_disc_nodes */ #define NLP_RCV_PLOGI 0x00080000 /* Rcv'ed PLOGI from remote system */ #define NLP_LOGO_ACC 0x00100000 /* Process LOGO after ACC completes */ #define NLP_TGT_NO_SCSIID 0x00200000 /* good PRLI but no binding for scsid */ #define NLP_ISSUE_LOGO 0x00400000 /* waiting to issue a LOGO */ #define NLP_IN_DEV_LOSS 0x00800000 /* devloss in progress */ #define NLP_ACC_REGLOGIN 0x01000000 /* Issue Reg Login after successful ACC */ #define NLP_NPR_ADISC 0x02000000 /* Issue ADISC when dq'ed from NPR list */ #define NLP_RM_DFLT_RPI 0x04000000 /* need to remove leftover dflt RPI */ #define NLP_NODEV_REMOVE 0x08000000 /* Defer removal till discovery ends */ #define NLP_TARGET_REMOVE 0x10000000 /* Target remove in process */ #define NLP_SC_REQ 0x20000000 /* Target requires authentication */ #define NLP_FIRSTBURST 0x40000000 /* Target supports FirstBurst */ #define NLP_RPI_REGISTERED 0x80000000 /* nlp_rpi is valid */ /* ndlp usage management macros */ #define NLP_CHK_NODE_ACT(ndlp) (((ndlp)->nlp_usg_map \ & NLP_USG_NODE_ACT_BIT) \ && \ !((ndlp)->nlp_usg_map \ & NLP_USG_FREE_ACK_BIT)) #define NLP_SET_NODE_ACT(ndlp) ((ndlp)->nlp_usg_map \ |= NLP_USG_NODE_ACT_BIT) #define NLP_INT_NODE_ACT(ndlp) ((ndlp)->nlp_usg_map \ = NLP_USG_NODE_ACT_BIT) #define NLP_CLR_NODE_ACT(ndlp) ((ndlp)->nlp_usg_map \ &= ~NLP_USG_NODE_ACT_BIT) #define NLP_CHK_IACT_REQ(ndlp) ((ndlp)->nlp_usg_map \ & NLP_USG_IACT_REQ_BIT) #define NLP_SET_IACT_REQ(ndlp) ((ndlp)->nlp_usg_map \ |= NLP_USG_IACT_REQ_BIT) #define NLP_CHK_FREE_REQ(ndlp) ((ndlp)->nlp_usg_map \ & NLP_USG_FREE_REQ_BIT) #define NLP_SET_FREE_REQ(ndlp) ((ndlp)->nlp_usg_map \ |= NLP_USG_FREE_REQ_BIT) #define NLP_CHK_FREE_ACK(ndlp) ((ndlp)->nlp_usg_map \ & NLP_USG_FREE_ACK_BIT) #define NLP_SET_FREE_ACK(ndlp) ((ndlp)->nlp_usg_map \ |= NLP_USG_FREE_ACK_BIT) /* There are 4 different double linked lists nodelist entries can reside on. * The Port Login (PLOGI) list and Address Discovery (ADISC) list are used * when Link Up discovery or Registered State Change Notification (RSCN) * processing is needed. Each list holds the nodes that require a PLOGI or * ADISC Extended Link Service (ELS) request. These lists keep track of the * nodes affected by an RSCN, or a Link Up (Typically, all nodes are effected * by Link Up) event. The unmapped_list contains all nodes that have * successfully logged into at the Fibre Channel level. The * mapped_list will contain all nodes that are mapped FCP targets. * * The bind list is a list of undiscovered (potentially non-existent) nodes * that we have saved binding information on. This information is used when * nodes transition from the unmapped to the mapped list. */ /* Defines for nlp_state */ #define NLP_STE_UNUSED_NODE 0x0 /* node is just allocated */ #define NLP_STE_PLOGI_ISSUE 0x1 /* PLOGI was sent to NL_PORT */ #define NLP_STE_ADISC_ISSUE 0x2 /* ADISC was sent to NL_PORT */ #define NLP_STE_REG_LOGIN_ISSUE 0x3 /* REG_LOGIN was issued for NL_PORT */ #define NLP_STE_PRLI_ISSUE 0x4 /* PRLI was sent to NL_PORT */ #define NLP_STE_LOGO_ISSUE 0x5 /* LOGO was sent to NL_PORT */ #define NLP_STE_UNMAPPED_NODE 0x6 /* PRLI completed from NL_PORT */ #define NLP_STE_MAPPED_NODE 0x7 /* Identified as a FCP Target */ #define NLP_STE_NPR_NODE 0x8 /* NPort disappeared */ #define NLP_STE_MAX_STATE 0x9 #define NLP_STE_FREED_NODE 0xff /* node entry was freed to MEM_NLP */ /* For UNUSED_NODE state, the node has just been allocated. * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list * and put on the unmapped list. For ADISC processing, the node is taken off * the ADISC list and placed on either the mapped or unmapped list (depending * on its previous state). Once on the unmapped list, a PRLI is issued and the * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is * changed to PRLI_COMPL. If the completion indicates a mapped * node, the node is taken off the unmapped list. The binding list is checked * for a valid binding, or a binding is automatically assigned. If binding * assignment is unsuccessful, the node is left on the unmapped list. If * binding assignment is successful, the associated binding list entry (if * any) is removed, and the node is placed on the mapped list. */ /* * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers * expire, all effected nodes will receive a DEVICE_RM event. */ /* * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap * check, additional nodes may be added (DEVICE_ADD) or removed (DEVICE_RM) to / * from the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, * we will first process the ADISC list. 32 entries are processed initially and * ADISC is initited for each one. Completions / Events for each node are * funnelled thru the state machine. As each node finishes ADISC processing, it * starts ADISC for any nodes waiting for ADISC processing. If no nodes are * waiting, and the ADISC list count is identically 0, then we are done. For * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI * list. 32 entries are processed initially and PLOGI is initited for each one. * Completions / Events for each node are funnelled thru the state machine. As * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is * identically 0, then we are done. We have now completed discovery / RSCN * handling. Upon completion, ALL nodes should be on either the mapped or * unmapped lists. */ /* Defines for Node List Entry Events that could happen */ #define NLP_EVT_RCV_PLOGI 0x0 /* Rcv'd an ELS PLOGI command */ #define NLP_EVT_RCV_PRLI 0x1 /* Rcv'd an ELS PRLI command */ #define NLP_EVT_RCV_LOGO 0x2 /* Rcv'd an ELS LOGO command */ #define NLP_EVT_RCV_ADISC 0x3 /* Rcv'd an ELS ADISC command */ #define NLP_EVT_RCV_PDISC 0x4 /* Rcv'd an ELS PDISC command */ #define NLP_EVT_RCV_PRLO 0x5 /* Rcv'd an ELS PRLO command */ #define NLP_EVT_CMPL_PLOGI 0x6 /* Sent an ELS PLOGI command */ #define NLP_EVT_CMPL_PRLI 0x7 /* Sent an ELS PRLI command */ #define NLP_EVT_CMPL_LOGO 0x8 /* Sent an ELS LOGO command */ #define NLP_EVT_CMPL_ADISC 0x9 /* Sent an ELS ADISC command */ #define NLP_EVT_CMPL_REG_LOGIN 0xa /* REG_LOGIN mbox cmd completed */ #define NLP_EVT_DEVICE_RM 0xb /* Device not found in NS / ALPAmap */ #define NLP_EVT_DEVICE_RECOVERY 0xc /* Device existence unknown */ #define NLP_EVT_MAX_EVENT 0xd #define NLP_EVT_NOTHING_PENDING 0xff
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