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