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255 lines
8.0 KiB
255 lines
8.0 KiB
/* |
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* This file is part of the Chelsio FCoE driver for Linux. |
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* |
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* Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved. |
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* |
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* This software is available to you under a choice of one of two |
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* licenses. You may choose to be licensed under the terms of the GNU |
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* General Public License (GPL) Version 2, available from the file |
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* COPYING in the main directory of this source tree, or the |
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* OpenIB.org BSD license below: |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* - Redistributions of source code must retain the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer. |
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* |
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* - Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials |
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* provided with the distribution. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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*/ |
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#ifndef __CSIO_LNODE_H__ |
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#define __CSIO_LNODE_H__ |
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#include <linux/kref.h> |
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#include <linux/timer.h> |
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#include <linux/workqueue.h> |
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#include <scsi/fc/fc_els.h> |
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#include "csio_defs.h" |
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#include "csio_hw.h" |
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#define CSIO_FCOE_MAX_NPIV 128 |
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#define CSIO_FCOE_MAX_RNODES 2048 |
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/* FDMI port attribute unknown speed */ |
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#define CSIO_HBA_PORTSPEED_UNKNOWN 0x8000 |
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extern int csio_fcoe_rnodes; |
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extern int csio_fdmi_enable; |
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/* State machine evets */ |
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enum csio_ln_ev { |
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CSIO_LNE_NONE = (uint32_t)0, |
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CSIO_LNE_LINKUP, |
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CSIO_LNE_FAB_INIT_DONE, |
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CSIO_LNE_LINK_DOWN, |
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CSIO_LNE_DOWN_LINK, |
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CSIO_LNE_LOGO, |
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CSIO_LNE_CLOSE, |
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CSIO_LNE_MAX_EVENT, |
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}; |
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struct csio_fcf_info { |
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struct list_head list; |
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uint8_t priority; |
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uint8_t mac[6]; |
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uint8_t name_id[8]; |
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uint8_t fabric[8]; |
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uint16_t vf_id; |
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uint8_t vlan_id; |
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uint16_t max_fcoe_size; |
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uint8_t fc_map[3]; |
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uint32_t fka_adv; |
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uint32_t fcfi; |
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uint8_t get_next:1; |
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uint8_t link_aff:1; |
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uint8_t fpma:1; |
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uint8_t spma:1; |
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uint8_t login:1; |
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uint8_t portid; |
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uint8_t spma_mac[6]; |
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struct kref kref; |
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}; |
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/* Defines for flags */ |
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#define CSIO_LNF_FIPSUPP 0x00000001 /* Fip Supported */ |
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#define CSIO_LNF_NPIVSUPP 0x00000002 /* NPIV supported */ |
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#define CSIO_LNF_LINK_ENABLE 0x00000004 /* Link enabled */ |
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#define CSIO_LNF_FDMI_ENABLE 0x00000008 /* FDMI support */ |
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/* Transport events */ |
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enum csio_ln_fc_evt { |
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CSIO_LN_FC_LINKUP = 1, |
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CSIO_LN_FC_LINKDOWN, |
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CSIO_LN_FC_RSCN, |
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CSIO_LN_FC_ATTRIB_UPDATE, |
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}; |
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/* Lnode stats */ |
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struct csio_lnode_stats { |
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uint32_t n_link_up; /* Link down */ |
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uint32_t n_link_down; /* Link up */ |
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uint32_t n_err; /* error */ |
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uint32_t n_err_nomem; /* memory not available */ |
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uint32_t n_inval_parm; /* Invalid parameters */ |
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uint32_t n_evt_unexp; /* unexpected event */ |
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uint32_t n_evt_drop; /* dropped event */ |
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uint32_t n_rnode_match; /* matched rnode */ |
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uint32_t n_dev_loss_tmo; /* Device loss timeout */ |
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uint32_t n_fdmi_err; /* fdmi err */ |
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uint32_t n_evt_fw[PROTO_ERR_IMPL_LOGO + 1]; /* fw events */ |
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enum csio_ln_ev n_evt_sm[CSIO_LNE_MAX_EVENT]; /* State m/c events */ |
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uint32_t n_rnode_alloc; /* rnode allocated */ |
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uint32_t n_rnode_free; /* rnode freed */ |
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uint32_t n_rnode_nomem; /* rnode alloc failure */ |
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uint32_t n_input_requests; /* Input Requests */ |
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uint32_t n_output_requests; /* Output Requests */ |
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uint32_t n_control_requests; /* Control Requests */ |
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uint32_t n_input_bytes; /* Input Bytes */ |
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uint32_t n_output_bytes; /* Output Bytes */ |
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uint32_t rsvd1; |
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}; |
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/* Common Lnode params */ |
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struct csio_lnode_params { |
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uint32_t ra_tov; |
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uint32_t fcfi; |
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uint32_t log_level; /* Module level for debugging */ |
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}; |
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struct csio_service_parms { |
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struct fc_els_csp csp; /* Common service parms */ |
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uint8_t wwpn[8]; /* WWPN */ |
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uint8_t wwnn[8]; /* WWNN */ |
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struct fc_els_cssp clsp[4]; /* Class service params */ |
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uint8_t vvl[16]; /* Vendor version level */ |
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}; |
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/* Lnode */ |
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struct csio_lnode { |
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struct csio_sm sm; /* State machine + sibling |
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* lnode list. |
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*/ |
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struct csio_hw *hwp; /* Pointer to the HW module */ |
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uint8_t portid; /* Port ID */ |
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uint8_t rsvd1; |
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uint16_t rsvd2; |
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uint32_t dev_num; /* Device number */ |
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uint32_t flags; /* Flags */ |
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struct list_head fcf_lsthead; /* FCF entries */ |
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struct csio_fcf_info *fcfinfo; /* FCF in use */ |
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struct csio_ioreq *mgmt_req; /* MGMT request */ |
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/* FCoE identifiers */ |
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uint8_t mac[6]; |
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uint32_t nport_id; |
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struct csio_service_parms ln_sparm; /* Service parms */ |
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/* Firmware identifiers */ |
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uint32_t fcf_flowid; /*fcf flowid */ |
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uint32_t vnp_flowid; |
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uint16_t ssn_cnt; /* Registered Session */ |
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uint8_t cur_evt; /* Current event */ |
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uint8_t prev_evt; /* Previous event */ |
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/* Children */ |
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struct list_head cln_head; /* Head of the children lnode |
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* list. |
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*/ |
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uint32_t num_vports; /* Total NPIV/children LNodes*/ |
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struct csio_lnode *pln; /* Parent lnode of child |
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* lnodes. |
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*/ |
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struct list_head cmpl_q; /* Pending I/Os on this lnode */ |
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/* Remote node information */ |
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struct list_head rnhead; /* Head of rnode list */ |
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uint32_t num_reg_rnodes; /* Number of rnodes registered |
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* with the host. |
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*/ |
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uint32_t n_scsi_tgts; /* Number of scsi targets |
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* found |
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*/ |
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uint32_t last_scan_ntgts;/* Number of scsi targets |
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* found per last scan. |
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*/ |
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uint32_t tgt_scan_tick; /* timer started after |
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* new tgt found |
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*/ |
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/* FC transport data */ |
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struct fc_vport *fc_vport; |
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struct fc_host_statistics fch_stats; |
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struct csio_lnode_stats stats; /* Common lnode stats */ |
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struct csio_lnode_params params; /* Common lnode params */ |
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}; |
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#define csio_lnode_to_hw(ln) ((ln)->hwp) |
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#define csio_root_lnode(ln) (csio_lnode_to_hw((ln))->rln) |
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#define csio_parent_lnode(ln) ((ln)->pln) |
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#define csio_ln_flowid(ln) ((ln)->vnp_flowid) |
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#define csio_ln_wwpn(ln) ((ln)->ln_sparm.wwpn) |
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#define csio_ln_wwnn(ln) ((ln)->ln_sparm.wwnn) |
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#define csio_is_root_ln(ln) (((ln) == csio_root_lnode((ln))) ? 1 : 0) |
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#define csio_is_phys_ln(ln) (((ln)->pln == NULL) ? 1 : 0) |
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#define csio_is_npiv_ln(ln) (((ln)->pln != NULL) ? 1 : 0) |
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#define csio_ln_dbg(_ln, _fmt, ...) \ |
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csio_dbg(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \ |
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CSIO_DEVID_LO(_ln), ##__VA_ARGS__); |
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#define csio_ln_err(_ln, _fmt, ...) \ |
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csio_err(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \ |
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CSIO_DEVID_LO(_ln), ##__VA_ARGS__); |
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#define csio_ln_warn(_ln, _fmt, ...) \ |
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csio_warn(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \ |
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CSIO_DEVID_LO(_ln), ##__VA_ARGS__); |
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/* HW->Lnode notifications */ |
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enum csio_ln_notify { |
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CSIO_LN_NOTIFY_HWREADY = 1, |
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CSIO_LN_NOTIFY_HWSTOP, |
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CSIO_LN_NOTIFY_HWREMOVE, |
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CSIO_LN_NOTIFY_HWRESET, |
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}; |
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void csio_fcoe_fwevt_handler(struct csio_hw *, __u8 cpl_op, __be64 *); |
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int csio_is_lnode_ready(struct csio_lnode *); |
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void csio_lnode_state_to_str(struct csio_lnode *ln, int8_t *str); |
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struct csio_lnode *csio_lnode_lookup_by_wwpn(struct csio_hw *, uint8_t *); |
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int csio_get_phy_port_stats(struct csio_hw *, uint8_t , |
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struct fw_fcoe_port_stats *); |
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int csio_scan_done(struct csio_lnode *, unsigned long, unsigned long, |
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unsigned long, unsigned long); |
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void csio_notify_lnodes(struct csio_hw *, enum csio_ln_notify); |
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void csio_disable_lnodes(struct csio_hw *, uint8_t, bool); |
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void csio_lnode_async_event(struct csio_lnode *, enum csio_ln_fc_evt); |
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int csio_ln_fdmi_start(struct csio_lnode *, void *); |
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int csio_lnode_start(struct csio_lnode *); |
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void csio_lnode_stop(struct csio_lnode *); |
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void csio_lnode_close(struct csio_lnode *); |
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int csio_lnode_init(struct csio_lnode *, struct csio_hw *, |
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struct csio_lnode *); |
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void csio_lnode_exit(struct csio_lnode *); |
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#endif /* ifndef __CSIO_LNODE_H__ */
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