1a3667aaeSNaresh Kumar Inna /* 2a3667aaeSNaresh Kumar Inna * This file is part of the Chelsio FCoE driver for Linux. 3a3667aaeSNaresh Kumar Inna * 4a3667aaeSNaresh Kumar Inna * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved. 5a3667aaeSNaresh Kumar Inna * 6a3667aaeSNaresh Kumar Inna * This software is available to you under a choice of one of two 7a3667aaeSNaresh Kumar Inna * licenses. You may choose to be licensed under the terms of the GNU 8a3667aaeSNaresh Kumar Inna * General Public License (GPL) Version 2, available from the file 9a3667aaeSNaresh Kumar Inna * COPYING in the main directory of this source tree, or the 10a3667aaeSNaresh Kumar Inna * OpenIB.org BSD license below: 11a3667aaeSNaresh Kumar Inna * 12a3667aaeSNaresh Kumar Inna * Redistribution and use in source and binary forms, with or 13a3667aaeSNaresh Kumar Inna * without modification, are permitted provided that the following 14a3667aaeSNaresh Kumar Inna * conditions are met: 15a3667aaeSNaresh Kumar Inna * 16a3667aaeSNaresh Kumar Inna * - Redistributions of source code must retain the above 17a3667aaeSNaresh Kumar Inna * copyright notice, this list of conditions and the following 18a3667aaeSNaresh Kumar Inna * disclaimer. 19a3667aaeSNaresh Kumar Inna * 20a3667aaeSNaresh Kumar Inna * - Redistributions in binary form must reproduce the above 21a3667aaeSNaresh Kumar Inna * copyright notice, this list of conditions and the following 22a3667aaeSNaresh Kumar Inna * disclaimer in the documentation and/or other materials 23a3667aaeSNaresh Kumar Inna * provided with the distribution. 24a3667aaeSNaresh Kumar Inna * 25a3667aaeSNaresh Kumar Inna * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26a3667aaeSNaresh Kumar Inna * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27a3667aaeSNaresh Kumar Inna * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28a3667aaeSNaresh Kumar Inna * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29a3667aaeSNaresh Kumar Inna * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30a3667aaeSNaresh Kumar Inna * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31a3667aaeSNaresh Kumar Inna * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32a3667aaeSNaresh Kumar Inna * SOFTWARE. 33a3667aaeSNaresh Kumar Inna */ 34a3667aaeSNaresh Kumar Inna 35a3667aaeSNaresh Kumar Inna #ifndef __CSIO_LNODE_H__ 36a3667aaeSNaresh Kumar Inna #define __CSIO_LNODE_H__ 37a3667aaeSNaresh Kumar Inna 38a3667aaeSNaresh Kumar Inna #include <linux/kref.h> 39a3667aaeSNaresh Kumar Inna #include <linux/timer.h> 40a3667aaeSNaresh Kumar Inna #include <linux/workqueue.h> 41a3667aaeSNaresh Kumar Inna #include <scsi/fc/fc_els.h> 42a3667aaeSNaresh Kumar Inna 43a3667aaeSNaresh Kumar Inna 44a3667aaeSNaresh Kumar Inna #include "csio_defs.h" 45a3667aaeSNaresh Kumar Inna #include "csio_hw.h" 46a3667aaeSNaresh Kumar Inna 47a3667aaeSNaresh Kumar Inna #define CSIO_FCOE_MAX_NPIV 128 48a3667aaeSNaresh Kumar Inna #define CSIO_FCOE_MAX_RNODES 2048 49a3667aaeSNaresh Kumar Inna 50a3667aaeSNaresh Kumar Inna /* FDMI port attribute unknown speed */ 51a3667aaeSNaresh Kumar Inna #define CSIO_HBA_PORTSPEED_UNKNOWN 0x8000 52a3667aaeSNaresh Kumar Inna 53a3667aaeSNaresh Kumar Inna extern int csio_fcoe_rnodes; 54a3667aaeSNaresh Kumar Inna extern int csio_fdmi_enable; 55a3667aaeSNaresh Kumar Inna 56a3667aaeSNaresh Kumar Inna /* State machine evets */ 57a3667aaeSNaresh Kumar Inna enum csio_ln_ev { 58a3667aaeSNaresh Kumar Inna CSIO_LNE_NONE = (uint32_t)0, 59a3667aaeSNaresh Kumar Inna CSIO_LNE_LINKUP, 60a3667aaeSNaresh Kumar Inna CSIO_LNE_FAB_INIT_DONE, 61a3667aaeSNaresh Kumar Inna CSIO_LNE_LINK_DOWN, 62a3667aaeSNaresh Kumar Inna CSIO_LNE_DOWN_LINK, 63a3667aaeSNaresh Kumar Inna CSIO_LNE_LOGO, 64a3667aaeSNaresh Kumar Inna CSIO_LNE_CLOSE, 65a3667aaeSNaresh Kumar Inna CSIO_LNE_MAX_EVENT, 66a3667aaeSNaresh Kumar Inna }; 67a3667aaeSNaresh Kumar Inna 68a3667aaeSNaresh Kumar Inna 69a3667aaeSNaresh Kumar Inna struct csio_fcf_info { 70a3667aaeSNaresh Kumar Inna struct list_head list; 71a3667aaeSNaresh Kumar Inna uint8_t priority; 72a3667aaeSNaresh Kumar Inna uint8_t mac[6]; 73a3667aaeSNaresh Kumar Inna uint8_t name_id[8]; 74a3667aaeSNaresh Kumar Inna uint8_t fabric[8]; 75a3667aaeSNaresh Kumar Inna uint16_t vf_id; 76a3667aaeSNaresh Kumar Inna uint8_t vlan_id; 77a3667aaeSNaresh Kumar Inna uint16_t max_fcoe_size; 78a3667aaeSNaresh Kumar Inna uint8_t fc_map[3]; 79a3667aaeSNaresh Kumar Inna uint32_t fka_adv; 80a3667aaeSNaresh Kumar Inna uint32_t fcfi; 81a3667aaeSNaresh Kumar Inna uint8_t get_next:1; 82a3667aaeSNaresh Kumar Inna uint8_t link_aff:1; 83a3667aaeSNaresh Kumar Inna uint8_t fpma:1; 84a3667aaeSNaresh Kumar Inna uint8_t spma:1; 85a3667aaeSNaresh Kumar Inna uint8_t login:1; 86a3667aaeSNaresh Kumar Inna uint8_t portid; 87a3667aaeSNaresh Kumar Inna uint8_t spma_mac[6]; 88a3667aaeSNaresh Kumar Inna struct kref kref; 89a3667aaeSNaresh Kumar Inna }; 90a3667aaeSNaresh Kumar Inna 91a3667aaeSNaresh Kumar Inna /* Defines for flags */ 92a3667aaeSNaresh Kumar Inna #define CSIO_LNF_FIPSUPP 0x00000001 /* Fip Supported */ 93a3667aaeSNaresh Kumar Inna #define CSIO_LNF_NPIVSUPP 0x00000002 /* NPIV supported */ 94a3667aaeSNaresh Kumar Inna #define CSIO_LNF_LINK_ENABLE 0x00000004 /* Link enabled */ 95a3667aaeSNaresh Kumar Inna #define CSIO_LNF_FDMI_ENABLE 0x00000008 /* FDMI support */ 96a3667aaeSNaresh Kumar Inna 97a3667aaeSNaresh Kumar Inna /* Transport events */ 98a3667aaeSNaresh Kumar Inna enum csio_ln_fc_evt { 99a3667aaeSNaresh Kumar Inna CSIO_LN_FC_LINKUP = 1, 100a3667aaeSNaresh Kumar Inna CSIO_LN_FC_LINKDOWN, 101a3667aaeSNaresh Kumar Inna CSIO_LN_FC_RSCN, 102a3667aaeSNaresh Kumar Inna CSIO_LN_FC_ATTRIB_UPDATE, 103a3667aaeSNaresh Kumar Inna }; 104a3667aaeSNaresh Kumar Inna 105a3667aaeSNaresh Kumar Inna /* Lnode stats */ 106a3667aaeSNaresh Kumar Inna struct csio_lnode_stats { 107a3667aaeSNaresh Kumar Inna uint32_t n_link_up; /* Link down */ 108a3667aaeSNaresh Kumar Inna uint32_t n_link_down; /* Link up */ 109a3667aaeSNaresh Kumar Inna uint32_t n_err; /* error */ 110a3667aaeSNaresh Kumar Inna uint32_t n_err_nomem; /* memory not available */ 111a3667aaeSNaresh Kumar Inna uint32_t n_inval_parm; /* Invalid parameters */ 112a3667aaeSNaresh Kumar Inna uint32_t n_evt_unexp; /* unexpected event */ 113a3667aaeSNaresh Kumar Inna uint32_t n_evt_drop; /* dropped event */ 114a3667aaeSNaresh Kumar Inna uint32_t n_rnode_match; /* matched rnode */ 115a3667aaeSNaresh Kumar Inna uint32_t n_dev_loss_tmo; /* Device loss timeout */ 116a3667aaeSNaresh Kumar Inna uint32_t n_fdmi_err; /* fdmi err */ 117a3667aaeSNaresh Kumar Inna uint32_t n_evt_fw[RSCN_DEV_LOST]; /* fw events */ 118a3667aaeSNaresh Kumar Inna enum csio_ln_ev n_evt_sm[CSIO_LNE_MAX_EVENT]; /* State m/c events */ 119a3667aaeSNaresh Kumar Inna uint32_t n_rnode_alloc; /* rnode allocated */ 120a3667aaeSNaresh Kumar Inna uint32_t n_rnode_free; /* rnode freed */ 121a3667aaeSNaresh Kumar Inna uint32_t n_rnode_nomem; /* rnode alloc failure */ 122a3667aaeSNaresh Kumar Inna uint32_t n_input_requests; /* Input Requests */ 123a3667aaeSNaresh Kumar Inna uint32_t n_output_requests; /* Output Requests */ 124a3667aaeSNaresh Kumar Inna uint32_t n_control_requests; /* Control Requests */ 125a3667aaeSNaresh Kumar Inna uint32_t n_input_bytes; /* Input Bytes */ 126a3667aaeSNaresh Kumar Inna uint32_t n_output_bytes; /* Output Bytes */ 127a3667aaeSNaresh Kumar Inna uint32_t rsvd1; 128a3667aaeSNaresh Kumar Inna }; 129a3667aaeSNaresh Kumar Inna 130a3667aaeSNaresh Kumar Inna /* Common Lnode params */ 131a3667aaeSNaresh Kumar Inna struct csio_lnode_params { 132a3667aaeSNaresh Kumar Inna uint32_t ra_tov; 133a3667aaeSNaresh Kumar Inna uint32_t fcfi; 134a3667aaeSNaresh Kumar Inna uint32_t log_level; /* Module level for debugging */ 135a3667aaeSNaresh Kumar Inna }; 136a3667aaeSNaresh Kumar Inna 137a3667aaeSNaresh Kumar Inna struct csio_service_parms { 138a3667aaeSNaresh Kumar Inna struct fc_els_csp csp; /* Common service parms */ 139a3667aaeSNaresh Kumar Inna uint8_t wwpn[8]; /* WWPN */ 140a3667aaeSNaresh Kumar Inna uint8_t wwnn[8]; /* WWNN */ 141a3667aaeSNaresh Kumar Inna struct fc_els_cssp clsp[4]; /* Class service params */ 142a3667aaeSNaresh Kumar Inna uint8_t vvl[16]; /* Vendor version level */ 143a3667aaeSNaresh Kumar Inna }; 144a3667aaeSNaresh Kumar Inna 145a3667aaeSNaresh Kumar Inna /* Lnode */ 146a3667aaeSNaresh Kumar Inna struct csio_lnode { 147a3667aaeSNaresh Kumar Inna struct csio_sm sm; /* State machine + sibling 148a3667aaeSNaresh Kumar Inna * lnode list. 149a3667aaeSNaresh Kumar Inna */ 150a3667aaeSNaresh Kumar Inna struct csio_hw *hwp; /* Pointer to the HW module */ 151a3667aaeSNaresh Kumar Inna uint8_t portid; /* Port ID */ 152a3667aaeSNaresh Kumar Inna uint8_t rsvd1; 153a3667aaeSNaresh Kumar Inna uint16_t rsvd2; 154a3667aaeSNaresh Kumar Inna uint32_t dev_num; /* Device number */ 155a3667aaeSNaresh Kumar Inna uint32_t flags; /* Flags */ 156a3667aaeSNaresh Kumar Inna struct list_head fcf_lsthead; /* FCF entries */ 157a3667aaeSNaresh Kumar Inna struct csio_fcf_info *fcfinfo; /* FCF in use */ 158a3667aaeSNaresh Kumar Inna struct csio_ioreq *mgmt_req; /* MGMT request */ 159a3667aaeSNaresh Kumar Inna 160a3667aaeSNaresh Kumar Inna /* FCoE identifiers */ 161a3667aaeSNaresh Kumar Inna uint8_t mac[6]; 162a3667aaeSNaresh Kumar Inna uint32_t nport_id; 163a3667aaeSNaresh Kumar Inna struct csio_service_parms ln_sparm; /* Service parms */ 164a3667aaeSNaresh Kumar Inna 165a3667aaeSNaresh Kumar Inna /* Firmware identifiers */ 166a3667aaeSNaresh Kumar Inna uint32_t fcf_flowid; /*fcf flowid */ 167a3667aaeSNaresh Kumar Inna uint32_t vnp_flowid; 168a3667aaeSNaresh Kumar Inna uint16_t ssn_cnt; /* Registered Session */ 169a3667aaeSNaresh Kumar Inna uint8_t cur_evt; /* Current event */ 170a3667aaeSNaresh Kumar Inna uint8_t prev_evt; /* Previous event */ 171a3667aaeSNaresh Kumar Inna 172a3667aaeSNaresh Kumar Inna /* Children */ 173a3667aaeSNaresh Kumar Inna struct list_head cln_head; /* Head of the children lnode 174a3667aaeSNaresh Kumar Inna * list. 175a3667aaeSNaresh Kumar Inna */ 176a3667aaeSNaresh Kumar Inna uint32_t num_vports; /* Total NPIV/children LNodes*/ 177a3667aaeSNaresh Kumar Inna struct csio_lnode *pln; /* Parent lnode of child 178a3667aaeSNaresh Kumar Inna * lnodes. 179a3667aaeSNaresh Kumar Inna */ 180a3667aaeSNaresh Kumar Inna struct list_head cmpl_q; /* Pending I/Os on this lnode */ 181a3667aaeSNaresh Kumar Inna 182a3667aaeSNaresh Kumar Inna /* Remote node information */ 183a3667aaeSNaresh Kumar Inna struct list_head rnhead; /* Head of rnode list */ 184a3667aaeSNaresh Kumar Inna uint32_t num_reg_rnodes; /* Number of rnodes registered 185a3667aaeSNaresh Kumar Inna * with the host. 186a3667aaeSNaresh Kumar Inna */ 187a3667aaeSNaresh Kumar Inna uint32_t n_scsi_tgts; /* Number of scsi targets 188a3667aaeSNaresh Kumar Inna * found 189a3667aaeSNaresh Kumar Inna */ 190a3667aaeSNaresh Kumar Inna uint32_t last_scan_ntgts;/* Number of scsi targets 191a3667aaeSNaresh Kumar Inna * found per last scan. 192a3667aaeSNaresh Kumar Inna */ 193a3667aaeSNaresh Kumar Inna uint32_t tgt_scan_tick; /* timer started after 194a3667aaeSNaresh Kumar Inna * new tgt found 195a3667aaeSNaresh Kumar Inna */ 196a3667aaeSNaresh Kumar Inna /* FC transport data */ 197a3667aaeSNaresh Kumar Inna struct fc_vport *fc_vport; 198a3667aaeSNaresh Kumar Inna struct fc_host_statistics fch_stats; 199a3667aaeSNaresh Kumar Inna 200a3667aaeSNaresh Kumar Inna struct csio_lnode_stats stats; /* Common lnode stats */ 201a3667aaeSNaresh Kumar Inna struct csio_lnode_params params; /* Common lnode params */ 202a3667aaeSNaresh Kumar Inna }; 203a3667aaeSNaresh Kumar Inna 204a3667aaeSNaresh Kumar Inna #define csio_lnode_to_hw(ln) ((ln)->hwp) 205a3667aaeSNaresh Kumar Inna #define csio_root_lnode(ln) (csio_lnode_to_hw((ln))->rln) 206a3667aaeSNaresh Kumar Inna #define csio_parent_lnode(ln) ((ln)->pln) 207a3667aaeSNaresh Kumar Inna #define csio_ln_flowid(ln) ((ln)->vnp_flowid) 208a3667aaeSNaresh Kumar Inna #define csio_ln_wwpn(ln) ((ln)->ln_sparm.wwpn) 209a3667aaeSNaresh Kumar Inna #define csio_ln_wwnn(ln) ((ln)->ln_sparm.wwnn) 210a3667aaeSNaresh Kumar Inna 211a3667aaeSNaresh Kumar Inna #define csio_is_root_ln(ln) (((ln) == csio_root_lnode((ln))) ? 1 : 0) 212a3667aaeSNaresh Kumar Inna #define csio_is_phys_ln(ln) (((ln)->pln == NULL) ? 1 : 0) 213a3667aaeSNaresh Kumar Inna #define csio_is_npiv_ln(ln) (((ln)->pln != NULL) ? 1 : 0) 214a3667aaeSNaresh Kumar Inna 215a3667aaeSNaresh Kumar Inna 216a3667aaeSNaresh Kumar Inna #define csio_ln_dbg(_ln, _fmt, ...) \ 217a3667aaeSNaresh Kumar Inna csio_dbg(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \ 218a3667aaeSNaresh Kumar Inna CSIO_DEVID_LO(_ln), ##__VA_ARGS__); 219a3667aaeSNaresh Kumar Inna 220a3667aaeSNaresh Kumar Inna #define csio_ln_err(_ln, _fmt, ...) \ 221a3667aaeSNaresh Kumar Inna csio_err(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \ 222a3667aaeSNaresh Kumar Inna CSIO_DEVID_LO(_ln), ##__VA_ARGS__); 223a3667aaeSNaresh Kumar Inna 224a3667aaeSNaresh Kumar Inna #define csio_ln_warn(_ln, _fmt, ...) \ 225a3667aaeSNaresh Kumar Inna csio_warn(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \ 226a3667aaeSNaresh Kumar Inna CSIO_DEVID_LO(_ln), ##__VA_ARGS__); 227a3667aaeSNaresh Kumar Inna 228a3667aaeSNaresh Kumar Inna /* HW->Lnode notifications */ 229a3667aaeSNaresh Kumar Inna enum csio_ln_notify { 230a3667aaeSNaresh Kumar Inna CSIO_LN_NOTIFY_HWREADY = 1, 231a3667aaeSNaresh Kumar Inna CSIO_LN_NOTIFY_HWSTOP, 232a3667aaeSNaresh Kumar Inna CSIO_LN_NOTIFY_HWREMOVE, 233a3667aaeSNaresh Kumar Inna CSIO_LN_NOTIFY_HWRESET, 234a3667aaeSNaresh Kumar Inna }; 235a3667aaeSNaresh Kumar Inna 236a3667aaeSNaresh Kumar Inna void csio_fcoe_fwevt_handler(struct csio_hw *, __u8 cpl_op, __be64 *); 237a3667aaeSNaresh Kumar Inna int csio_is_lnode_ready(struct csio_lnode *); 238a3667aaeSNaresh Kumar Inna void csio_lnode_state_to_str(struct csio_lnode *ln, int8_t *str); 239a3667aaeSNaresh Kumar Inna struct csio_lnode *csio_lnode_lookup_by_wwpn(struct csio_hw *, uint8_t *); 240a3667aaeSNaresh Kumar Inna int csio_get_phy_port_stats(struct csio_hw *, uint8_t , 241a3667aaeSNaresh Kumar Inna struct fw_fcoe_port_stats *); 242a3667aaeSNaresh Kumar Inna int csio_scan_done(struct csio_lnode *, unsigned long, unsigned long, 243a3667aaeSNaresh Kumar Inna unsigned long, unsigned long); 244a3667aaeSNaresh Kumar Inna void csio_notify_lnodes(struct csio_hw *, enum csio_ln_notify); 245a3667aaeSNaresh Kumar Inna void csio_disable_lnodes(struct csio_hw *, uint8_t, bool); 246a3667aaeSNaresh Kumar Inna void csio_lnode_async_event(struct csio_lnode *, enum csio_ln_fc_evt); 247a3667aaeSNaresh Kumar Inna int csio_ln_fdmi_start(struct csio_lnode *, void *); 248a3667aaeSNaresh Kumar Inna int csio_lnode_start(struct csio_lnode *); 249a3667aaeSNaresh Kumar Inna void csio_lnode_stop(struct csio_lnode *); 250a3667aaeSNaresh Kumar Inna void csio_lnode_close(struct csio_lnode *); 251a3667aaeSNaresh Kumar Inna int csio_lnode_init(struct csio_lnode *, struct csio_hw *, 252a3667aaeSNaresh Kumar Inna struct csio_lnode *); 253a3667aaeSNaresh Kumar Inna void csio_lnode_exit(struct csio_lnode *); 254a3667aaeSNaresh Kumar Inna 255a3667aaeSNaresh Kumar Inna #endif /* ifndef __CSIO_LNODE_H__ */ 256