/*
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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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