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1/*2 * This file is part of the Chelsio FCoE driver for Linux.3 *4 * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved.5 *6 * This software is available to you under a choice of one of two7 * licenses. You may choose to be licensed under the terms of the GNU8 * General Public License (GPL) Version 2, available from the file9 * COPYING in the main directory of this source tree, or the10 * OpenIB.org BSD license below:11 *12 * Redistribution and use in source and binary forms, with or13 * without modification, are permitted provided that the following14 * conditions are met:15 *16 * - Redistributions of source code must retain the above17 * copyright notice, this list of conditions and the following18 * disclaimer.19 *20 * - Redistributions in binary form must reproduce the above21 * copyright notice, this list of conditions and the following22 * disclaimer in the documentation and/or other materials23 * provided with the distribution.24 *25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE32 * SOFTWARE.33 */34 35#ifndef __CSIO_LNODE_H__36#define __CSIO_LNODE_H__37 38#include <linux/kref.h>39#include <linux/timer.h>40#include <linux/workqueue.h>41#include <scsi/fc/fc_els.h>42 43 44#include "csio_defs.h"45#include "csio_hw.h"46 47#define CSIO_FCOE_MAX_NPIV 12848#define CSIO_FCOE_MAX_RNODES 204849 50/* FDMI port attribute unknown speed */51#define CSIO_HBA_PORTSPEED_UNKNOWN 0x800052 53extern int csio_fcoe_rnodes;54extern int csio_fdmi_enable;55 56struct csio_fcf_info {57 struct list_head list;58 uint8_t priority;59 uint8_t mac[6];60 uint8_t name_id[8];61 uint8_t fabric[8];62 uint16_t vf_id;63 uint8_t vlan_id;64 uint16_t max_fcoe_size;65 uint8_t fc_map[3];66 uint32_t fka_adv;67 uint32_t fcfi;68 uint8_t get_next:1;69 uint8_t link_aff:1;70 uint8_t fpma:1;71 uint8_t spma:1;72 uint8_t login:1;73 uint8_t portid;74 uint8_t spma_mac[6];75 struct kref kref;76};77 78/* Defines for flags */79#define CSIO_LNF_FIPSUPP 0x00000001 /* Fip Supported */80#define CSIO_LNF_NPIVSUPP 0x00000002 /* NPIV supported */81#define CSIO_LNF_LINK_ENABLE 0x00000004 /* Link enabled */82#define CSIO_LNF_FDMI_ENABLE 0x00000008 /* FDMI support */83 84/* Transport events */85enum csio_ln_fc_evt {86 CSIO_LN_FC_LINKUP = 1,87 CSIO_LN_FC_LINKDOWN,88 CSIO_LN_FC_RSCN,89 CSIO_LN_FC_ATTRIB_UPDATE,90};91 92/* Lnode stats */93struct csio_lnode_stats {94 uint32_t n_link_up; /* Link down */95 uint32_t n_link_down; /* Link up */96 uint32_t n_err; /* error */97 uint32_t n_err_nomem; /* memory not available */98 uint32_t n_inval_parm; /* Invalid parameters */99 uint32_t n_evt_unexp; /* unexpected event */100 uint32_t n_evt_drop; /* dropped event */101 uint32_t n_rnode_match; /* matched rnode */102 uint32_t n_dev_loss_tmo; /* Device loss timeout */103 uint32_t n_fdmi_err; /* fdmi err */104 uint32_t n_evt_fw[PROTO_ERR_IMPL_LOGO + 1]; /* fw events */105 enum csio_ln_ev n_evt_sm[CSIO_LNE_MAX_EVENT]; /* State m/c events */106 uint32_t n_rnode_alloc; /* rnode allocated */107 uint32_t n_rnode_free; /* rnode freed */108 uint32_t n_rnode_nomem; /* rnode alloc failure */109 uint32_t n_input_requests; /* Input Requests */110 uint32_t n_output_requests; /* Output Requests */111 uint32_t n_control_requests; /* Control Requests */112 uint32_t n_input_bytes; /* Input Bytes */113 uint32_t n_output_bytes; /* Output Bytes */114 uint32_t rsvd1;115};116 117/* Common Lnode params */118struct csio_lnode_params {119 uint32_t ra_tov;120 uint32_t fcfi;121 uint32_t log_level; /* Module level for debugging */122};123 124struct csio_service_parms {125 struct fc_els_csp csp; /* Common service parms */126 uint8_t wwpn[8]; /* WWPN */127 uint8_t wwnn[8]; /* WWNN */128 struct fc_els_cssp clsp[4]; /* Class service params */129 uint8_t vvl[16]; /* Vendor version level */130};131 132/* Lnode */133struct csio_lnode {134 struct csio_sm sm; /* State machine + sibling135 * lnode list.136 */137 struct csio_hw *hwp; /* Pointer to the HW module */138 uint8_t portid; /* Port ID */139 uint8_t rsvd1;140 uint16_t rsvd2;141 uint32_t dev_num; /* Device number */142 uint32_t flags; /* Flags */143 struct list_head fcf_lsthead; /* FCF entries */144 struct csio_fcf_info *fcfinfo; /* FCF in use */145 struct csio_ioreq *mgmt_req; /* MGMT request */146 147 /* FCoE identifiers */148 uint8_t mac[6];149 uint32_t nport_id;150 struct csio_service_parms ln_sparm; /* Service parms */151 152 /* Firmware identifiers */153 uint32_t fcf_flowid; /*fcf flowid */154 uint32_t vnp_flowid;155 uint16_t ssn_cnt; /* Registered Session */156 uint8_t cur_evt; /* Current event */157 uint8_t prev_evt; /* Previous event */158 159 /* Children */160 struct list_head cln_head; /* Head of the children lnode161 * list.162 */163 uint32_t num_vports; /* Total NPIV/children LNodes*/164 struct csio_lnode *pln; /* Parent lnode of child165 * lnodes.166 */167 struct list_head cmpl_q; /* Pending I/Os on this lnode */168 169 /* Remote node information */170 struct list_head rnhead; /* Head of rnode list */171 uint32_t num_reg_rnodes; /* Number of rnodes registered172 * with the host.173 */174 uint32_t n_scsi_tgts; /* Number of scsi targets175 * found176 */177 uint32_t last_scan_ntgts;/* Number of scsi targets178 * found per last scan.179 */180 uint32_t tgt_scan_tick; /* timer started after181 * new tgt found182 */183 /* FC transport data */184 struct fc_vport *fc_vport;185 struct fc_host_statistics fch_stats;186 187 struct csio_lnode_stats stats; /* Common lnode stats */188 struct csio_lnode_params params; /* Common lnode params */189};190 191#define csio_lnode_to_hw(ln) ((ln)->hwp)192#define csio_root_lnode(ln) (csio_lnode_to_hw((ln))->rln)193#define csio_parent_lnode(ln) ((ln)->pln)194#define csio_ln_flowid(ln) ((ln)->vnp_flowid)195#define csio_ln_wwpn(ln) ((ln)->ln_sparm.wwpn)196#define csio_ln_wwnn(ln) ((ln)->ln_sparm.wwnn)197 198#define csio_is_root_ln(ln) (((ln) == csio_root_lnode((ln))) ? 1 : 0)199#define csio_is_phys_ln(ln) (((ln)->pln == NULL) ? 1 : 0)200#define csio_is_npiv_ln(ln) (((ln)->pln != NULL) ? 1 : 0)201 202 203#define csio_ln_dbg(_ln, _fmt, ...) \204 csio_dbg(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \205 CSIO_DEVID_LO(_ln), ##__VA_ARGS__);206 207#define csio_ln_err(_ln, _fmt, ...) \208 csio_err(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \209 CSIO_DEVID_LO(_ln), ##__VA_ARGS__);210 211#define csio_ln_warn(_ln, _fmt, ...) \212 csio_warn(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \213 CSIO_DEVID_LO(_ln), ##__VA_ARGS__);214 215/* HW->Lnode notifications */216enum csio_ln_notify {217 CSIO_LN_NOTIFY_HWREADY = 1,218 CSIO_LN_NOTIFY_HWSTOP,219 CSIO_LN_NOTIFY_HWREMOVE,220 CSIO_LN_NOTIFY_HWRESET,221};222 223void csio_fcoe_fwevt_handler(struct csio_hw *, __u8 cpl_op, __be64 *);224int csio_is_lnode_ready(struct csio_lnode *);225void csio_lnode_state_to_str(struct csio_lnode *ln, int8_t *str);226struct csio_lnode *csio_lnode_lookup_by_wwpn(struct csio_hw *, uint8_t *);227int csio_get_phy_port_stats(struct csio_hw *, uint8_t ,228 struct fw_fcoe_port_stats *);229int csio_scan_done(struct csio_lnode *, unsigned long, unsigned long,230 unsigned long, unsigned long);231void csio_notify_lnodes(struct csio_hw *, enum csio_ln_notify);232void csio_disable_lnodes(struct csio_hw *, uint8_t, bool);233void csio_lnode_async_event(struct csio_lnode *, enum csio_ln_fc_evt);234int csio_ln_fdmi_start(struct csio_lnode *, void *);235int csio_lnode_start(struct csio_lnode *);236void csio_lnode_stop(struct csio_lnode *);237void csio_lnode_close(struct csio_lnode *);238int csio_lnode_init(struct csio_lnode *, struct csio_hw *,239 struct csio_lnode *);240void csio_lnode_exit(struct csio_lnode *);241 242#endif /* ifndef __CSIO_LNODE_H__ */243