drivers/scsi/lpfc/lpfc_crtn.h

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2004-2008 Emulex.  All rights reserved.           *
   5  * EMULEX and SLI are trademarks of Emulex.                        *
   6  * www.emulex.com                                                  *
   7  *                                                                 *
   8  * This program is free software; you can redistribute it and/or   *
   9  * modify it under the terms of version 2 of the GNU General       *
  10  * Public License as published by the Free Software Foundation.    *
  11  * This program is distributed in the hope that it will be useful. *
  12  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  13  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  14  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  15  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  16  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  17  * more details, a copy of which can be found in the file COPYING  *
  18  * included with this package.                                     *
  19  *******************************************************************/
  20
  21 typedef int (*node_filter)(struct lpfc_nodelist *ndlp, void *param);
  22
  23 struct fc_rport;
  24 void lpfc_dump_mem(struct lpfc_hba *, LPFC_MBOXQ_t *, uint16_t);
  25 void lpfc_read_nv(struct lpfc_hba *, LPFC_MBOXQ_t *);
  26 void lpfc_config_async(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
  27
  28 void lpfc_heart_beat(struct lpfc_hba *, LPFC_MBOXQ_t *);
  29 int lpfc_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb,
  30                  struct lpfc_dmabuf *mp);
  31 void lpfc_clear_la(struct lpfc_hba *, LPFC_MBOXQ_t *);
  32 void lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport);
  33 void lpfc_config_link(struct lpfc_hba *, LPFC_MBOXQ_t *);
  34 int lpfc_read_sparam(struct lpfc_hba *, LPFC_MBOXQ_t *, int);
  35 void lpfc_read_config(struct lpfc_hba *, LPFC_MBOXQ_t *);
  36 void lpfc_read_lnk_stat(struct lpfc_hba *, LPFC_MBOXQ_t *);
  37 int lpfc_reg_login(struct lpfc_hba *, uint16_t, uint32_t, uint8_t *,
  38                    LPFC_MBOXQ_t *, uint32_t);
  39 void lpfc_unreg_login(struct lpfc_hba *, uint16_t, uint32_t, LPFC_MBOXQ_t *);
  40 void lpfc_unreg_did(struct lpfc_hba *, uint16_t, uint32_t, LPFC_MBOXQ_t *);
  41 void lpfc_reg_vpi(struct lpfc_hba *, uint16_t, uint32_t, LPFC_MBOXQ_t *);
  42 void lpfc_unreg_vpi(struct lpfc_hba *, uint16_t, LPFC_MBOXQ_t *);
  43 void lpfc_init_link(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t, uint32_t);
  44
  45 struct lpfc_vport *lpfc_find_vport_by_did(struct lpfc_hba *, uint32_t);
  46 void lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove);
  47 int lpfc_linkdown(struct lpfc_hba *);
  48 void lpfc_port_link_failure(struct lpfc_vport *);
  49 void lpfc_mbx_cmpl_read_la(struct lpfc_hba *, LPFC_MBOXQ_t *);
  50
  51 void lpfc_mbx_cmpl_reg_login(struct lpfc_hba *, LPFC_MBOXQ_t *);
  52 void lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *, LPFC_MBOXQ_t *);
  53 void lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *, LPFC_MBOXQ_t *);
  54 void lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *, LPFC_MBOXQ_t *);
  55 void lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *, LPFC_MBOXQ_t *);
  56 void lpfc_enqueue_node(struct lpfc_vport *, struct lpfc_nodelist *);
  57 void lpfc_dequeue_node(struct lpfc_vport *, struct lpfc_nodelist *);
  58 struct lpfc_nodelist *lpfc_enable_node(struct lpfc_vport *,
  59                                         struct lpfc_nodelist *, int);
  60 void lpfc_nlp_set_state(struct lpfc_vport *, struct lpfc_nodelist *, int);
  61 void lpfc_drop_node(struct lpfc_vport *, struct lpfc_nodelist *);
  62 void lpfc_set_disctmo(struct lpfc_vport *);
  63 int  lpfc_can_disctmo(struct lpfc_vport *);
  64 int  lpfc_unreg_rpi(struct lpfc_vport *, struct lpfc_nodelist *);
  65 void lpfc_unreg_all_rpis(struct lpfc_vport *);
  66 void lpfc_unreg_default_rpis(struct lpfc_vport *);
  67 void lpfc_issue_reg_vpi(struct lpfc_hba *, struct lpfc_vport *);
  68
  69 int lpfc_check_sli_ndlp(struct lpfc_hba *, struct lpfc_sli_ring *,
  70                         struct lpfc_iocbq *, struct lpfc_nodelist *);
  71 void lpfc_nlp_init(struct lpfc_vport *, struct lpfc_nodelist *, uint32_t);
  72 struct lpfc_nodelist *lpfc_nlp_get(struct lpfc_nodelist *);
  73 int  lpfc_nlp_put(struct lpfc_nodelist *);
  74 int  lpfc_nlp_not_used(struct lpfc_nodelist *ndlp);
  75 struct lpfc_nodelist *lpfc_setup_disc_node(struct lpfc_vport *, uint32_t);
  76 void lpfc_disc_list_loopmap(struct lpfc_vport *);
  77 void lpfc_disc_start(struct lpfc_vport *);
  78 void lpfc_cleanup_discovery_resources(struct lpfc_vport *);
  79 void lpfc_cleanup(struct lpfc_vport *);
  80 void lpfc_disc_timeout(unsigned long);
  81
  82 struct lpfc_nodelist *__lpfc_findnode_rpi(struct lpfc_vport *, uint16_t);
  83
  84 void lpfc_worker_wake_up(struct lpfc_hba *);
  85 int lpfc_workq_post_event(struct lpfc_hba *, void *, void *, uint32_t);
  86 int lpfc_do_work(void *);
  87 int lpfc_disc_state_machine(struct lpfc_vport *, struct lpfc_nodelist *, void *,
  88                             uint32_t);
  89
  90 void lpfc_do_scr_ns_plogi(struct lpfc_hba *, struct lpfc_vport *);
  91 int lpfc_check_sparm(struct lpfc_vport *, struct lpfc_nodelist *,
  92                      struct serv_parm *, uint32_t);
  93 int lpfc_els_abort(struct lpfc_hba *, struct lpfc_nodelist *);
  94 void lpfc_more_plogi(struct lpfc_vport *);
  95 void lpfc_more_adisc(struct lpfc_vport *);
  96 void lpfc_end_rscn(struct lpfc_vport *);
  97 int lpfc_els_chk_latt(struct lpfc_vport *);
  98 int lpfc_els_abort_flogi(struct lpfc_hba *);
  99 int lpfc_initial_flogi(struct lpfc_vport *);
 100 int lpfc_initial_fdisc(struct lpfc_vport *);
 101 int lpfc_issue_els_plogi(struct lpfc_vport *, uint32_t, uint8_t);
 102 int lpfc_issue_els_prli(struct lpfc_vport *, struct lpfc_nodelist *, uint8_t);
 103 int lpfc_issue_els_adisc(struct lpfc_vport *, struct lpfc_nodelist *, uint8_t);
 104 int lpfc_issue_els_logo(struct lpfc_vport *, struct lpfc_nodelist *, uint8_t);
 105 int lpfc_issue_els_npiv_logo(struct lpfc_vport *, struct lpfc_nodelist *);
 106 int lpfc_issue_els_scr(struct lpfc_vport *, uint32_t, uint8_t);
 107 int lpfc_els_free_iocb(struct lpfc_hba *, struct lpfc_iocbq *);
 108 int lpfc_ct_free_iocb(struct lpfc_hba *, struct lpfc_iocbq *);
 109 int lpfc_els_rsp_acc(struct lpfc_vport *, uint32_t, struct lpfc_iocbq *,
 110                      struct lpfc_nodelist *, LPFC_MBOXQ_t *);
 111 int lpfc_els_rsp_reject(struct lpfc_vport *, uint32_t, struct lpfc_iocbq *,
 112                         struct lpfc_nodelist *, LPFC_MBOXQ_t *);
 113 int lpfc_els_rsp_adisc_acc(struct lpfc_vport *, struct lpfc_iocbq *,
 114                            struct lpfc_nodelist *);
 115 int lpfc_els_rsp_prli_acc(struct lpfc_vport *, struct lpfc_iocbq *,
 116                           struct lpfc_nodelist *);
 117 void lpfc_cancel_retry_delay_tmo(struct lpfc_vport *, struct lpfc_nodelist *);
 118 void lpfc_els_retry_delay(unsigned long);
 119 void lpfc_els_retry_delay_handler(struct lpfc_nodelist *);
 120 void lpfc_els_unsol_event(struct lpfc_hba *, struct lpfc_sli_ring *,
 121                           struct lpfc_iocbq *);
 122 int lpfc_els_handle_rscn(struct lpfc_vport *);
 123 void lpfc_els_flush_rscn(struct lpfc_vport *);
 124 int lpfc_rscn_payload_check(struct lpfc_vport *, uint32_t);
 125 void lpfc_els_flush_all_cmd(struct lpfc_hba *);
 126 void lpfc_els_flush_cmd(struct lpfc_vport *);
 127 int lpfc_els_disc_adisc(struct lpfc_vport *);
 128 int lpfc_els_disc_plogi(struct lpfc_vport *);
 129 void lpfc_els_timeout(unsigned long);
 130 void lpfc_els_timeout_handler(struct lpfc_vport *);
 131 void lpfc_hb_timeout_handler(struct lpfc_hba *);
 132
 133 void lpfc_ct_unsol_event(struct lpfc_hba *, struct lpfc_sli_ring *,
 134                          struct lpfc_iocbq *);
 135 int lpfc_ns_cmd(struct lpfc_vport *, int, uint8_t, uint32_t);
 136 int lpfc_fdmi_cmd(struct lpfc_vport *, struct lpfc_nodelist *, int);
 137 void lpfc_fdmi_tmo(unsigned long);
 138 void lpfc_fdmi_timeout_handler(struct lpfc_vport *vport);
 139
 140 int lpfc_config_port_prep(struct lpfc_hba *);
 141 int lpfc_config_port_post(struct lpfc_hba *);
 142 int lpfc_hba_down_prep(struct lpfc_hba *);
 143 int lpfc_hba_down_post(struct lpfc_hba *);
 144 void lpfc_hba_init(struct lpfc_hba *, uint32_t *);
 145 int lpfc_post_buffer(struct lpfc_hba *, struct lpfc_sli_ring *, int, int);
 146 void lpfc_decode_firmware_rev(struct lpfc_hba *, char *, int);
 147 int lpfc_online(struct lpfc_hba *);
 148 void lpfc_unblock_mgmt_io(struct lpfc_hba *);
 149 void lpfc_offline_prep(struct lpfc_hba *);
 150 void lpfc_offline(struct lpfc_hba *);
 151
 152 int lpfc_sli_setup(struct lpfc_hba *);
 153 int lpfc_sli_queue_setup(struct lpfc_hba *);
 154
 155 void lpfc_handle_eratt(struct lpfc_hba *);
 156 void lpfc_handle_latt(struct lpfc_hba *);
 157 irqreturn_t lpfc_intr_handler(int, void *);
 158
 159 void lpfc_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *);
 160 void lpfc_config_ring(struct lpfc_hba *, int, LPFC_MBOXQ_t *);
 161 void lpfc_config_port(struct lpfc_hba *, LPFC_MBOXQ_t *);
 162 void lpfc_kill_board(struct lpfc_hba *, LPFC_MBOXQ_t *);
 163 void lpfc_mbox_put(struct lpfc_hba *, LPFC_MBOXQ_t *);
 164 LPFC_MBOXQ_t *lpfc_mbox_get(struct lpfc_hba *);
 165 void lpfc_mbox_cmpl_put(struct lpfc_hba *, LPFC_MBOXQ_t *);
 166 int lpfc_mbox_tmo_val(struct lpfc_hba *, int);
 167
 168 void lpfc_config_hbq(struct lpfc_hba *, uint32_t, struct lpfc_hbq_init *,
 169         uint32_t , LPFC_MBOXQ_t *);
 170 struct hbq_dmabuf *lpfc_els_hbq_alloc(struct lpfc_hba *);
 171 void lpfc_els_hbq_free(struct lpfc_hba *, struct hbq_dmabuf *);
 172
 173 int lpfc_mem_alloc(struct lpfc_hba *);
 174 void lpfc_mem_free(struct lpfc_hba *);
 175 void lpfc_stop_vport_timers(struct lpfc_vport *);
 176
 177 void lpfc_poll_timeout(unsigned long ptr);
 178 void lpfc_poll_start_timer(struct lpfc_hba * phba);
 179 void lpfc_sli_poll_fcp_ring(struct lpfc_hba * hba);
 180 struct lpfc_iocbq * lpfc_sli_get_iocbq(struct lpfc_hba *);
 181 void lpfc_sli_release_iocbq(struct lpfc_hba * phba, struct lpfc_iocbq * iocb);
 182 uint16_t lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocb);
 183
 184 void lpfc_reset_barrier(struct lpfc_hba * phba);
 185 int lpfc_sli_brdready(struct lpfc_hba *, uint32_t);
 186 int lpfc_sli_brdkill(struct lpfc_hba *);
 187 int lpfc_sli_brdreset(struct lpfc_hba *);
 188 int lpfc_sli_brdrestart(struct lpfc_hba *);
 189 int lpfc_sli_hba_setup(struct lpfc_hba *);
 190 int lpfc_sli_host_down(struct lpfc_vport *);
 191 int lpfc_sli_hba_down(struct lpfc_hba *);
 192 int lpfc_sli_issue_mbox(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
 193 int lpfc_sli_handle_mb_event(struct lpfc_hba *);
 194 int lpfc_sli_flush_mbox_queue(struct lpfc_hba *);
 195 int lpfc_sli_handle_slow_ring_event(struct lpfc_hba *,
 196                                     struct lpfc_sli_ring *, uint32_t);
 197 void lpfc_sli_def_mbox_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
 198 int lpfc_sli_issue_iocb(struct lpfc_hba *, struct lpfc_sli_ring *,
 199                         struct lpfc_iocbq *, uint32_t);
 200 void lpfc_sli_pcimem_bcopy(void *, void *, uint32_t);
 201 void lpfc_sli_abort_iocb_ring(struct lpfc_hba *, struct lpfc_sli_ring *);
 202 int lpfc_sli_ringpostbuf_put(struct lpfc_hba *, struct lpfc_sli_ring *,
 203                              struct lpfc_dmabuf *);
 204 struct lpfc_dmabuf *lpfc_sli_ringpostbuf_get(struct lpfc_hba *,
 205                                              struct lpfc_sli_ring *,
 206                                              dma_addr_t);
 207
 208 uint32_t lpfc_sli_get_buffer_tag(struct lpfc_hba *);
 209 struct lpfc_dmabuf * lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *,
 210                         struct lpfc_sli_ring *, uint32_t );
 211
 212 int lpfc_sli_hbq_count(void);
 213 int lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *, uint32_t);
 214 void lpfc_sli_hbqbuf_free_all(struct lpfc_hba *);
 215 int lpfc_sli_hbq_size(void);
 216 int lpfc_sli_issue_abort_iotag(struct lpfc_hba *, struct lpfc_sli_ring *,
 217                                struct lpfc_iocbq *);
 218 int lpfc_sli_sum_iocb(struct lpfc_vport *, uint16_t, uint64_t, lpfc_ctx_cmd);
 219 int lpfc_sli_abort_iocb(struct lpfc_vport *, struct lpfc_sli_ring *, uint16_t,
 220                         uint64_t, lpfc_ctx_cmd);
 221
 222 void lpfc_mbox_timeout(unsigned long);
 223 void lpfc_mbox_timeout_handler(struct lpfc_hba *);
 224
 225 struct lpfc_nodelist *lpfc_findnode_did(struct lpfc_vport *, uint32_t);
 226 struct lpfc_nodelist *lpfc_findnode_wwpn(struct lpfc_vport *,
 227                                          struct lpfc_name *);
 228
 229 int lpfc_sli_issue_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq,
 230                              uint32_t timeout);
 231
 232 int lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba,
 233                              struct lpfc_sli_ring * pring,
 234                              struct lpfc_iocbq * piocb,
 235                              struct lpfc_iocbq * prspiocbq,
 236                              uint32_t timeout);
 237 void lpfc_sli_abort_fcp_cmpl(struct lpfc_hba * phba,
 238                              struct lpfc_iocbq * cmdiocb,
 239                              struct lpfc_iocbq * rspiocb);
 240
 241 void lpfc_sli_free_hbq(struct lpfc_hba *, struct hbq_dmabuf *);
 242
 243 void *lpfc_mbuf_alloc(struct lpfc_hba *, int, dma_addr_t *);
 244 void __lpfc_mbuf_free(struct lpfc_hba *, void *, dma_addr_t);
 245 void lpfc_mbuf_free(struct lpfc_hba *, void *, dma_addr_t);
 246
 247 void lpfc_in_buf_free(struct lpfc_hba *, struct lpfc_dmabuf *);
 248 /* Function prototypes. */
 249 const char* lpfc_info(struct Scsi_Host *);
 250 int lpfc_scan_finished(struct Scsi_Host *, unsigned long);
 251
 252 void lpfc_get_cfgparam(struct lpfc_hba *);
 253 void lpfc_get_vport_cfgparam(struct lpfc_vport *);
 254 int lpfc_alloc_sysfs_attr(struct lpfc_vport *);
 255 void lpfc_free_sysfs_attr(struct lpfc_vport *);
 256 extern struct class_device_attribute *lpfc_hba_attrs[];
 257 extern struct class_device_attribute *lpfc_vport_attrs[];
 258 extern struct scsi_host_template lpfc_template;
 259 extern struct scsi_host_template lpfc_vport_template;
 260 extern struct fc_function_template lpfc_transport_functions;
 261 extern struct fc_function_template lpfc_vport_transport_functions;
 262 extern int lpfc_sli_mode;
 263 extern int lpfc_enable_npiv;
 264
 265 int  lpfc_vport_symbolic_node_name(struct lpfc_vport *, char *, size_t);
 266 void lpfc_terminate_rport_io(struct fc_rport *);
 267 void lpfc_dev_loss_tmo_callbk(struct fc_rport *rport);
 268
 269 struct lpfc_vport *lpfc_create_port(struct lpfc_hba *, int, struct device *);
 270 int  lpfc_vport_disable(struct fc_vport *fc_vport, bool disable);
 271 void lpfc_mbx_unreg_vpi(struct lpfc_vport *);
 272 void destroy_port(struct lpfc_vport *);
 273 int lpfc_get_instance(void);
 274 void lpfc_host_attrib_init(struct Scsi_Host *);
 275
 276 extern void lpfc_debugfs_initialize(struct lpfc_vport *);
 277 extern void lpfc_debugfs_terminate(struct lpfc_vport *);
 278 extern void lpfc_debugfs_disc_trc(struct lpfc_vport *, int, char *, uint32_t,
 279         uint32_t, uint32_t);
 280 extern void lpfc_debugfs_slow_ring_trc(struct lpfc_hba *, char *, uint32_t,
 281         uint32_t, uint32_t);
 282 extern struct lpfc_hbq_init *lpfc_hbq_defs[];
 283
 284 /* Interface exported by fabric iocb scheduler */
 285 void lpfc_fabric_abort_nport(struct lpfc_nodelist *);
 286 void lpfc_fabric_abort_hba(struct lpfc_hba *);
 287 void lpfc_fabric_block_timeout(unsigned long);
 288 void lpfc_unblock_fabric_iocbs(struct lpfc_hba *);
 289 void lpfc_adjust_queue_depth(struct lpfc_hba *);
 290 void lpfc_ramp_down_queue_handler(struct lpfc_hba *);
 291 void lpfc_ramp_up_queue_handler(struct lpfc_hba *);
 292
 293 #define ScsiResult(host_code, scsi_code) (((host_code) << 16) | scsi_code)
 294 #define HBA_EVENT_RSCN                   5
 295 #define HBA_EVENT_LINK_UP                2
 296 #define HBA_EVENT_LINK_DOWN              3