drivers/scsi/bfa/bfad_attr.c

   1 /*
   2  * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
   3  * All rights reserved
   4  * www.brocade.com
   5  *
   6  * Linux driver for Brocade Fibre Channel Host Bus Adapter.
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License (GPL) Version 2 as
  10  * published by the Free Software Foundation
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  */
  17
  18 /**
  19  *  bfa_attr.c Linux driver configuration interface module.
  20  */
  21
  22 #include "bfad_drv.h"
  23 #include "bfad_im.h"
  24 #include "bfad_trcmod.h"
  25 #include "bfad_attr.h"
  26
  27 /**
  28  *  FC_transport_template FC transport template
  29  */
  30
  31 /**
  32  * FC transport template entry, get SCSI target port ID.
  33  */
  34 void
  35 bfad_im_get_starget_port_id(struct scsi_target *starget)
  36 {
  37         struct Scsi_Host *shost;
  38         struct bfad_im_port_s *im_port;
  39         struct bfad_s         *bfad;
  40         struct bfad_itnim_s   *itnim = NULL;
  41         u32        fc_id = -1;
  42         unsigned long   flags;
  43
  44         shost = bfad_os_starget_to_shost(starget);
  45         im_port = (struct bfad_im_port_s *) shost->hostdata[0];
  46         bfad = im_port->bfad;
  47         spin_lock_irqsave(&bfad->bfad_lock, flags);
  48
  49         itnim = bfad_os_get_itnim(im_port, starget->id);
  50         if (itnim)
  51                 fc_id = bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim);
  52
  53         fc_starget_port_id(starget) = fc_id;
  54         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
  55 }
  56
  57 /**
  58  * FC transport template entry, get SCSI target nwwn.
  59  */
  60 void
  61 bfad_im_get_starget_node_name(struct scsi_target *starget)
  62 {
  63         struct Scsi_Host *shost;
  64         struct bfad_im_port_s *im_port;
  65         struct bfad_s         *bfad;
  66         struct bfad_itnim_s   *itnim = NULL;
  67         u64             node_name = 0;
  68         unsigned long   flags;
  69
  70         shost = bfad_os_starget_to_shost(starget);
  71         im_port = (struct bfad_im_port_s *) shost->hostdata[0];
  72         bfad = im_port->bfad;
  73         spin_lock_irqsave(&bfad->bfad_lock, flags);
  74
  75         itnim = bfad_os_get_itnim(im_port, starget->id);
  76         if (itnim)
  77                 node_name = bfa_fcs_itnim_get_nwwn(&itnim->fcs_itnim);
  78
  79         fc_starget_node_name(starget) = bfa_os_htonll(node_name);
  80         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
  81 }
  82
  83 /**
  84  * FC transport template entry, get SCSI target pwwn.
  85  */
  86 void
  87 bfad_im_get_starget_port_name(struct scsi_target *starget)
  88 {
  89         struct Scsi_Host *shost;
  90         struct bfad_im_port_s *im_port;
  91         struct bfad_s         *bfad;
  92         struct bfad_itnim_s   *itnim = NULL;
  93         u64             port_name = 0;
  94         unsigned long   flags;
  95
  96         shost = bfad_os_starget_to_shost(starget);
  97         im_port = (struct bfad_im_port_s *) shost->hostdata[0];
  98         bfad = im_port->bfad;
  99         spin_lock_irqsave(&bfad->bfad_lock, flags);
 100
 101         itnim = bfad_os_get_itnim(im_port, starget->id);
 102         if (itnim)
 103                 port_name = bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim);
 104
 105         fc_starget_port_name(starget) = bfa_os_htonll(port_name);
 106         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 107 }
 108
 109 /**
 110  * FC transport template entry, get SCSI host port ID.
 111  */
 112 void
 113 bfad_im_get_host_port_id(struct Scsi_Host *shost)
 114 {
 115         struct bfad_im_port_s *im_port =
 116                         (struct bfad_im_port_s *) shost->hostdata[0];
 117         struct bfad_port_s    *port = im_port->port;
 118
 119         fc_host_port_id(shost) =
 120                         bfa_os_hton3b(bfa_fcs_port_get_fcid(port->fcs_port));
 121 }
 122
 123
 124
 125
 126
 127 struct Scsi_Host *
 128 bfad_os_starget_to_shost(struct scsi_target *starget)
 129 {
 130         return dev_to_shost(starget->dev.parent);
 131 }
 132
 133 /**
 134  * FC transport template entry, get SCSI host port type.
 135  */
 136 static void
 137 bfad_im_get_host_port_type(struct Scsi_Host *shost)
 138 {
 139         struct bfad_im_port_s *im_port =
 140                         (struct bfad_im_port_s *) shost->hostdata[0];
 141         struct bfad_s         *bfad = im_port->bfad;
 142         struct bfa_pport_attr_s attr;
 143
 144         bfa_pport_get_attr(&bfad->bfa, &attr);
 145
 146         switch (attr.port_type) {
 147         case BFA_PPORT_TYPE_NPORT:
 148                 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
 149                 break;
 150         case BFA_PPORT_TYPE_NLPORT:
 151                 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
 152                 break;
 153         case BFA_PPORT_TYPE_P2P:
 154                 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
 155                 break;
 156         case BFA_PPORT_TYPE_LPORT:
 157                 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
 158                 break;
 159         default:
 160                 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
 161                 break;
 162         }
 163 }
 164
 165 /**
 166  * FC transport template entry, get SCSI host port state.
 167  */
 168 static void
 169 bfad_im_get_host_port_state(struct Scsi_Host *shost)
 170 {
 171         struct bfad_im_port_s *im_port =
 172                         (struct bfad_im_port_s *) shost->hostdata[0];
 173         struct bfad_s         *bfad = im_port->bfad;
 174         struct bfa_pport_attr_s attr;
 175
 176         bfa_pport_get_attr(&bfad->bfa, &attr);
 177
 178         switch (attr.port_state) {
 179         case BFA_PPORT_ST_LINKDOWN:
 180                 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
 181                 break;
 182         case BFA_PPORT_ST_LINKUP:
 183                 fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
 184                 break;
 185         case BFA_PPORT_ST_UNINIT:
 186         case BFA_PPORT_ST_ENABLING_QWAIT:
 187         case BFA_PPORT_ST_ENABLING:
 188         case BFA_PPORT_ST_DISABLING_QWAIT:
 189         case BFA_PPORT_ST_DISABLING:
 190         case BFA_PPORT_ST_DISABLED:
 191         case BFA_PPORT_ST_STOPPED:
 192         case BFA_PPORT_ST_IOCDOWN:
 193         default:
 194                 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
 195                 break;
 196         }
 197 }
 198
 199 /**
 200  * FC transport template entry, get SCSI host active fc4s.
 201  */
 202 static void
 203 bfad_im_get_host_active_fc4s(struct Scsi_Host *shost)
 204 {
 205         struct bfad_im_port_s *im_port =
 206                         (struct bfad_im_port_s *) shost->hostdata[0];
 207         struct bfad_port_s    *port = im_port->port;
 208
 209         memset(fc_host_active_fc4s(shost), 0,
 210                sizeof(fc_host_active_fc4s(shost)));
 211
 212         if (port->supported_fc4s &
 213                 (BFA_PORT_ROLE_FCP_IM | BFA_PORT_ROLE_FCP_TM))
 214                 fc_host_active_fc4s(shost)[2] = 1;
 215
 216         if (port->supported_fc4s & BFA_PORT_ROLE_FCP_IPFC)
 217                 fc_host_active_fc4s(shost)[3] = 0x20;
 218
 219         fc_host_active_fc4s(shost)[7] = 1;
 220 }
 221
 222 /**
 223  * FC transport template entry, get SCSI host link speed.
 224  */
 225 static void
 226 bfad_im_get_host_speed(struct Scsi_Host *shost)
 227 {
 228         struct bfad_im_port_s *im_port =
 229                         (struct bfad_im_port_s *) shost->hostdata[0];
 230         struct bfad_s         *bfad = im_port->bfad;
 231         struct bfa_pport_attr_s attr;
 232
 233         bfa_pport_get_attr(&bfad->bfa, &attr);
 234         switch (attr.speed) {
 235         case BFA_PPORT_SPEED_8GBPS:
 236                 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
 237                 break;
 238         case BFA_PPORT_SPEED_4GBPS:
 239                 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
 240                 break;
 241         case BFA_PPORT_SPEED_2GBPS:
 242                 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
 243                 break;
 244         case BFA_PPORT_SPEED_1GBPS:
 245                 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
 246                 break;
 247         default:
 248                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
 249                 break;
 250         }
 251 }
 252
 253 /**
 254  * FC transport template entry, get SCSI host port type.
 255  */
 256 static void
 257 bfad_im_get_host_fabric_name(struct Scsi_Host *shost)
 258 {
 259         struct bfad_im_port_s *im_port =
 260                         (struct bfad_im_port_s *) shost->hostdata[0];
 261         struct bfad_port_s    *port = im_port->port;
 262         wwn_t           fabric_nwwn = 0;
 263
 264         fabric_nwwn = bfa_fcs_port_get_fabric_name(port->fcs_port);
 265
 266         fc_host_fabric_name(shost) = bfa_os_htonll(fabric_nwwn);
 267
 268 }
 269
 270 /**
 271  * FC transport template entry, get BFAD statistics.
 272  */
 273 static struct fc_host_statistics *
 274 bfad_im_get_stats(struct Scsi_Host *shost)
 275 {
 276         struct bfad_im_port_s *im_port =
 277                         (struct bfad_im_port_s *) shost->hostdata[0];
 278         struct bfad_s         *bfad = im_port->bfad;
 279         struct bfad_hal_comp fcomp;
 280         struct fc_host_statistics *hstats;
 281         bfa_status_t    rc;
 282         unsigned long   flags;
 283
 284         hstats = &bfad->link_stats;
 285         init_completion(&fcomp.comp);
 286         spin_lock_irqsave(&bfad->bfad_lock, flags);
 287         memset(hstats, 0, sizeof(struct fc_host_statistics));
 288         rc = bfa_pport_get_stats(&bfad->bfa,
 289                                      (union bfa_pport_stats_u *) hstats,
 290                                      bfad_hcb_comp, &fcomp);
 291         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 292         if (rc != BFA_STATUS_OK)
 293                 return NULL;
 294
 295         wait_for_completion(&fcomp.comp);
 296
 297         return hstats;
 298 }
 299
 300 /**
 301  * FC transport template entry, reset BFAD statistics.
 302  */
 303 static void
 304 bfad_im_reset_stats(struct Scsi_Host *shost)
 305 {
 306         struct bfad_im_port_s *im_port =
 307                         (struct bfad_im_port_s *) shost->hostdata[0];
 308         struct bfad_s         *bfad = im_port->bfad;
 309         struct bfad_hal_comp fcomp;
 310         unsigned long   flags;
 311         bfa_status_t    rc;
 312
 313         init_completion(&fcomp.comp);
 314         spin_lock_irqsave(&bfad->bfad_lock, flags);
 315         rc = bfa_pport_clear_stats(&bfad->bfa, bfad_hcb_comp, &fcomp);
 316         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 317
 318         if (rc != BFA_STATUS_OK)
 319                 return;
 320
 321         wait_for_completion(&fcomp.comp);
 322
 323         return;
 324 }
 325
 326 /**
 327  * FC transport template entry, get rport loss timeout.
 328  */
 329 static void
 330 bfad_im_get_rport_loss_tmo(struct fc_rport *rport)
 331 {
 332         struct bfad_itnim_data_s *itnim_data = rport->dd_data;
 333         struct bfad_itnim_s   *itnim = itnim_data->itnim;
 334         struct bfad_s         *bfad = itnim->im->bfad;
 335         unsigned long   flags;
 336
 337         spin_lock_irqsave(&bfad->bfad_lock, flags);
 338         rport->dev_loss_tmo = bfa_fcpim_path_tov_get(&bfad->bfa);
 339         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 340 }
 341
 342 /**
 343  * FC transport template entry, set rport loss timeout.
 344  */
 345 static void
 346 bfad_im_set_rport_loss_tmo(struct fc_rport *rport, u32 timeout)
 347 {
 348         struct bfad_itnim_data_s *itnim_data = rport->dd_data;
 349         struct bfad_itnim_s   *itnim = itnim_data->itnim;
 350         struct bfad_s         *bfad = itnim->im->bfad;
 351         unsigned long   flags;
 352
 353         if (timeout > 0) {
 354                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 355                 bfa_fcpim_path_tov_set(&bfad->bfa, timeout);
 356                 rport->dev_loss_tmo = bfa_fcpim_path_tov_get(&bfad->bfa);
 357                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 358         }
 359
 360 }
 361
 362 struct fc_function_template bfad_im_fc_function_template = {
 363
 364         /* Target dynamic attributes */
 365         .get_starget_port_id = bfad_im_get_starget_port_id,
 366         .show_starget_port_id = 1,
 367         .get_starget_node_name = bfad_im_get_starget_node_name,
 368         .show_starget_node_name = 1,
 369         .get_starget_port_name = bfad_im_get_starget_port_name,
 370         .show_starget_port_name = 1,
 371
 372         /* Host dynamic attribute */
 373         .get_host_port_id = bfad_im_get_host_port_id,
 374         .show_host_port_id = 1,
 375
 376         /* Host fixed attributes */
 377         .show_host_node_name = 1,
 378         .show_host_port_name = 1,
 379         .show_host_supported_classes = 1,
 380         .show_host_supported_fc4s = 1,
 381         .show_host_supported_speeds = 1,
 382         .show_host_maxframe_size = 1,
 383
 384         /* More host dynamic attributes */
 385         .show_host_port_type = 1,
 386         .get_host_port_type = bfad_im_get_host_port_type,
 387         .show_host_port_state = 1,
 388         .get_host_port_state = bfad_im_get_host_port_state,
 389         .show_host_active_fc4s = 1,
 390         .get_host_active_fc4s = bfad_im_get_host_active_fc4s,
 391         .show_host_speed = 1,
 392         .get_host_speed = bfad_im_get_host_speed,
 393         .show_host_fabric_name = 1,
 394         .get_host_fabric_name = bfad_im_get_host_fabric_name,
 395
 396         .show_host_symbolic_name = 1,
 397
 398         /* Statistics */
 399         .get_fc_host_stats = bfad_im_get_stats,
 400         .reset_fc_host_stats = bfad_im_reset_stats,
 401
 402         /* Allocation length for host specific data */
 403         .dd_fcrport_size = sizeof(struct bfad_itnim_data_s *),
 404
 405         /* Remote port fixed attributes */
 406         .show_rport_maxframe_size = 1,
 407         .show_rport_supported_classes = 1,
 408         .show_rport_dev_loss_tmo = 1,
 409         .get_rport_dev_loss_tmo = bfad_im_get_rport_loss_tmo,
 410         .set_rport_dev_loss_tmo = bfad_im_set_rport_loss_tmo,
 411 };
 412
 413 /**
 414  *  Scsi_Host_attrs SCSI host attributes
 415  */
 416 static ssize_t
 417 bfad_im_serial_num_show(struct device *dev, struct device_attribute *attr,
 418                          char *buf)
 419 {
 420         struct Scsi_Host *shost = class_to_shost(dev);
 421         struct bfad_im_port_s *im_port =
 422                         (struct bfad_im_port_s *) shost->hostdata[0];
 423         struct bfad_s         *bfad = im_port->bfad;
 424         struct bfa_ioc_attr_s  ioc_attr;
 425
 426         memset(&ioc_attr, 0, sizeof(ioc_attr));
 427         bfa_get_attr(&bfad->bfa, &ioc_attr);
 428         return snprintf(buf, PAGE_SIZE, "%s\n",
 429                         ioc_attr.adapter_attr.serial_num);
 430 }
 431
 432 static ssize_t
 433 bfad_im_model_show(struct device *dev, struct device_attribute *attr,
 434                         char *buf)
 435 {
 436         struct Scsi_Host *shost = class_to_shost(dev);
 437         struct bfad_im_port_s *im_port =
 438                         (struct bfad_im_port_s *) shost->hostdata[0];
 439         struct bfad_s         *bfad = im_port->bfad;
 440         struct bfa_ioc_attr_s  ioc_attr;
 441
 442         memset(&ioc_attr, 0, sizeof(ioc_attr));
 443         bfa_get_attr(&bfad->bfa, &ioc_attr);
 444         return snprintf(buf, PAGE_SIZE, "%s\n", ioc_attr.adapter_attr.model);
 445 }
 446
 447 static ssize_t
 448 bfad_im_model_desc_show(struct device *dev, struct device_attribute *attr,
 449                                  char *buf)
 450 {
 451         struct Scsi_Host *shost = class_to_shost(dev);
 452         struct bfad_im_port_s *im_port =
 453                         (struct bfad_im_port_s *) shost->hostdata[0];
 454         struct bfad_s         *bfad = im_port->bfad;
 455         struct bfa_ioc_attr_s  ioc_attr;
 456
 457         memset(&ioc_attr, 0, sizeof(ioc_attr));
 458         bfa_get_attr(&bfad->bfa, &ioc_attr);
 459         return snprintf(buf, PAGE_SIZE, "%s\n",
 460                         ioc_attr.adapter_attr.model_descr);
 461 }
 462
 463 static ssize_t
 464 bfad_im_node_name_show(struct device *dev, struct device_attribute *attr,
 465                                  char *buf)
 466 {
 467         struct Scsi_Host *shost = class_to_shost(dev);
 468         struct bfad_im_port_s *im_port =
 469                         (struct bfad_im_port_s *) shost->hostdata[0];
 470         struct bfad_port_s    *port = im_port->port;
 471         u64        nwwn;
 472
 473         nwwn = bfa_fcs_port_get_nwwn(port->fcs_port);
 474         return snprintf(buf, PAGE_SIZE, "0x%llx\n", bfa_os_htonll(nwwn));
 475 }
 476
 477 static ssize_t
 478 bfad_im_symbolic_name_show(struct device *dev, struct device_attribute *attr,
 479                                  char *buf)
 480 {
 481         struct Scsi_Host *shost = class_to_shost(dev);
 482         struct bfad_im_port_s *im_port =
 483                         (struct bfad_im_port_s *) shost->hostdata[0];
 484         struct bfad_s         *bfad = im_port->bfad;
 485         struct bfa_ioc_attr_s  ioc_attr;
 486
 487         memset(&ioc_attr, 0, sizeof(ioc_attr));
 488         bfa_get_attr(&bfad->bfa, &ioc_attr);
 489
 490         return snprintf(buf, PAGE_SIZE, "Brocade %s FV%s DV%s\n",
 491                         ioc_attr.adapter_attr.model,
 492                         ioc_attr.adapter_attr.fw_ver, BFAD_DRIVER_VERSION);
 493 }
 494
 495 static ssize_t
 496 bfad_im_hw_version_show(struct device *dev, struct device_attribute *attr,
 497                                 char *buf)
 498 {
 499         struct Scsi_Host *shost = class_to_shost(dev);
 500         struct bfad_im_port_s *im_port =
 501                         (struct bfad_im_port_s *) shost->hostdata[0];
 502         struct bfad_s         *bfad = im_port->bfad;
 503         struct bfa_ioc_attr_s  ioc_attr;
 504
 505         memset(&ioc_attr, 0, sizeof(ioc_attr));
 506         bfa_get_attr(&bfad->bfa, &ioc_attr);
 507         return snprintf(buf, PAGE_SIZE, "%s\n", ioc_attr.adapter_attr.hw_ver);
 508 }
 509
 510 static ssize_t
 511 bfad_im_drv_version_show(struct device *dev, struct device_attribute *attr,
 512                                 char *buf)
 513 {
 514         return snprintf(buf, PAGE_SIZE, "%s\n", BFAD_DRIVER_VERSION);
 515 }
 516
 517 static ssize_t
 518 bfad_im_optionrom_version_show(struct device *dev,
 519                          struct device_attribute *attr, char *buf)
 520 {
 521         struct Scsi_Host *shost = class_to_shost(dev);
 522         struct bfad_im_port_s *im_port =
 523                         (struct bfad_im_port_s *) shost->hostdata[0];
 524         struct bfad_s         *bfad = im_port->bfad;
 525         struct bfa_ioc_attr_s  ioc_attr;
 526
 527         memset(&ioc_attr, 0, sizeof(ioc_attr));
 528         bfa_get_attr(&bfad->bfa, &ioc_attr);
 529         return snprintf(buf, PAGE_SIZE, "%s\n",
 530                         ioc_attr.adapter_attr.optrom_ver);
 531 }
 532
 533 static ssize_t
 534 bfad_im_fw_version_show(struct device *dev, struct device_attribute *attr,
 535                                  char *buf)
 536 {
 537         struct Scsi_Host *shost = class_to_shost(dev);
 538         struct bfad_im_port_s *im_port =
 539                         (struct bfad_im_port_s *) shost->hostdata[0];
 540         struct bfad_s         *bfad = im_port->bfad;
 541         struct bfa_ioc_attr_s  ioc_attr;
 542
 543         memset(&ioc_attr, 0, sizeof(ioc_attr));
 544         bfa_get_attr(&bfad->bfa, &ioc_attr);
 545         return snprintf(buf, PAGE_SIZE, "%s\n", ioc_attr.adapter_attr.fw_ver);
 546 }
 547
 548 static ssize_t
 549 bfad_im_num_of_ports_show(struct device *dev, struct device_attribute *attr,
 550                                 char *buf)
 551 {
 552         struct Scsi_Host *shost = class_to_shost(dev);
 553         struct bfad_im_port_s *im_port =
 554                         (struct bfad_im_port_s *) shost->hostdata[0];
 555         struct bfad_s         *bfad = im_port->bfad;
 556         struct bfa_ioc_attr_s  ioc_attr;
 557
 558         memset(&ioc_attr, 0, sizeof(ioc_attr));
 559         bfa_get_attr(&bfad->bfa, &ioc_attr);
 560         return snprintf(buf, PAGE_SIZE, "%d\n", ioc_attr.adapter_attr.nports);
 561 }
 562
 563 static ssize_t
 564 bfad_im_drv_name_show(struct device *dev, struct device_attribute *attr,
 565                                 char *buf)
 566 {
 567         return snprintf(buf, PAGE_SIZE, "%s\n", BFAD_DRIVER_NAME);
 568 }
 569
 570 static ssize_t
 571 bfad_im_num_of_discovered_ports_show(struct device *dev,
 572                         struct device_attribute *attr, char *buf)
 573 {
 574         struct Scsi_Host *shost = class_to_shost(dev);
 575         struct bfad_im_port_s *im_port =
 576                         (struct bfad_im_port_s *) shost->hostdata[0];
 577         struct bfad_port_s    *port = im_port->port;
 578         struct bfad_s         *bfad = im_port->bfad;
 579         int        nrports = 2048;
 580         wwn_t          *rports = NULL;
 581         unsigned long   flags;
 582
 583         rports = kzalloc(sizeof(wwn_t) * nrports , GFP_ATOMIC);
 584         if (rports == NULL)
 585                 return -ENOMEM;
 586
 587         spin_lock_irqsave(&bfad->bfad_lock, flags);
 588         bfa_fcs_port_get_rports(port->fcs_port, rports, &nrports);
 589         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 590         kfree(rports);
 591
 592         return snprintf(buf, PAGE_SIZE, "%d\n", nrports);
 593 }
 594
 595 static          DEVICE_ATTR(serial_number, S_IRUGO,
 596                                 bfad_im_serial_num_show, NULL);
 597 static          DEVICE_ATTR(model, S_IRUGO, bfad_im_model_show, NULL);
 598 static          DEVICE_ATTR(model_description, S_IRUGO,
 599                                 bfad_im_model_desc_show, NULL);
 600 static          DEVICE_ATTR(node_name, S_IRUGO, bfad_im_node_name_show, NULL);
 601 static          DEVICE_ATTR(symbolic_name, S_IRUGO,
 602                                 bfad_im_symbolic_name_show, NULL);
 603 static          DEVICE_ATTR(hardware_version, S_IRUGO,
 604                                 bfad_im_hw_version_show, NULL);
 605 static          DEVICE_ATTR(driver_version, S_IRUGO,
 606                                 bfad_im_drv_version_show, NULL);
 607 static          DEVICE_ATTR(option_rom_version, S_IRUGO,
 608                                 bfad_im_optionrom_version_show, NULL);
 609 static          DEVICE_ATTR(firmware_version, S_IRUGO,
 610                                 bfad_im_fw_version_show, NULL);
 611 static          DEVICE_ATTR(number_of_ports, S_IRUGO,
 612                                 bfad_im_num_of_ports_show, NULL);
 613 static          DEVICE_ATTR(driver_name, S_IRUGO, bfad_im_drv_name_show, NULL);
 614 static          DEVICE_ATTR(number_of_discovered_ports, S_IRUGO,
 615                                 bfad_im_num_of_discovered_ports_show, NULL);
 616
 617 struct device_attribute *bfad_im_host_attrs[] = {
 618         &dev_attr_serial_number,
 619         &dev_attr_model,
 620         &dev_attr_model_description,
 621         &dev_attr_node_name,
 622         &dev_attr_symbolic_name,
 623         &dev_attr_hardware_version,
 624         &dev_attr_driver_version,
 625         &dev_attr_option_rom_version,
 626         &dev_attr_firmware_version,
 627         &dev_attr_number_of_ports,
 628         &dev_attr_driver_name,
 629         &dev_attr_number_of_discovered_ports,
 630         NULL,
 631 };
 632
 633 struct device_attribute *bfad_im_vport_attrs[] = {
 634     &dev_attr_serial_number,
 635     &dev_attr_model,
 636     &dev_attr_model_description,
 637     &dev_attr_node_name,
 638     &dev_attr_symbolic_name,
 639     &dev_attr_hardware_version,
 640     &dev_attr_driver_version,
 641     &dev_attr_option_rom_version,
 642     &dev_attr_firmware_version,
 643     &dev_attr_number_of_ports,
 644     &dev_attr_driver_name,
 645     &dev_attr_number_of_discovered_ports,
 646     NULL,
 647 };
 648
 649