James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 1 | /******************************************************************* |
| 2 | * This file is part of the Emulex Linux Device Driver for * |
| 3 | * Fibre Channel Host Bus Adapters. * |
| 4 | * Copyright (C) 2004-2006 Emulex. All rights reserved. * |
| 5 | * EMULEX and SLI are trademarks of Emulex. * |
| 6 | * www.emulex.com * |
| 7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
| 8 | * * |
| 9 | * This program is free software; you can redistribute it and/or * |
| 10 | * modify it under the terms of version 2 of the GNU General * |
| 11 | * Public License as published by the Free Software Foundation. * |
| 12 | * This program is distributed in the hope that it will be useful. * |
| 13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * |
| 14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * |
| 15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * |
| 16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * |
| 17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * |
| 18 | * more details, a copy of which can be found in the file COPYING * |
| 19 | * included with this package. * |
| 20 | *******************************************************************/ |
| 21 | |
| 22 | #include <linux/blkdev.h> |
| 23 | #include <linux/delay.h> |
| 24 | #include <linux/dma-mapping.h> |
| 25 | #include <linux/idr.h> |
| 26 | #include <linux/interrupt.h> |
| 27 | #include <linux/kthread.h> |
| 28 | #include <linux/pci.h> |
| 29 | #include <linux/spinlock.h> |
| 30 | |
| 31 | #include <scsi/scsi.h> |
| 32 | #include <scsi/scsi_device.h> |
| 33 | #include <scsi/scsi_host.h> |
| 34 | #include <scsi/scsi_transport_fc.h> |
| 35 | #include "lpfc_hw.h" |
| 36 | #include "lpfc_sli.h" |
| 37 | #include "lpfc_disc.h" |
| 38 | #include "lpfc_scsi.h" |
| 39 | #include "lpfc.h" |
| 40 | #include "lpfc_logmsg.h" |
| 41 | #include "lpfc_crtn.h" |
| 42 | #include "lpfc_version.h" |
| 43 | #include "lpfc_vport.h" |
| 44 | |
| 45 | inline void lpfc_vport_set_state(struct lpfc_vport *vport, |
| 46 | enum fc_vport_state new_state) |
| 47 | { |
| 48 | struct fc_vport *fc_vport = vport->fc_vport; |
| 49 | |
| 50 | if (fc_vport) { |
| 51 | /* |
| 52 | * When the transport defines fc_vport_set state we will replace |
| 53 | * this code with the following line |
| 54 | */ |
| 55 | /* fc_vport_set_state(fc_vport, new_state); */ |
| 56 | if (new_state != FC_VPORT_INITIALIZING) |
| 57 | fc_vport->vport_last_state = fc_vport->vport_state; |
| 58 | fc_vport->vport_state = new_state; |
| 59 | } |
| 60 | |
| 61 | /* for all the error states we will set the invternal state to FAILED */ |
| 62 | switch (new_state) { |
| 63 | case FC_VPORT_NO_FABRIC_SUPP: |
| 64 | case FC_VPORT_NO_FABRIC_RSCS: |
| 65 | case FC_VPORT_FABRIC_LOGOUT: |
| 66 | case FC_VPORT_FABRIC_REJ_WWN: |
| 67 | case FC_VPORT_FAILED: |
| 68 | vport->port_state = LPFC_VPORT_FAILED; |
| 69 | break; |
| 70 | case FC_VPORT_LINKDOWN: |
| 71 | vport->port_state = LPFC_VPORT_UNKNOWN; |
| 72 | break; |
| 73 | default: |
| 74 | /* do nothing */ |
| 75 | break; |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | static int |
| 80 | lpfc_alloc_vpi(struct lpfc_hba *phba) |
| 81 | { |
| 82 | int vpi; |
| 83 | |
| 84 | spin_lock_irq(&phba->hbalock); |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 85 | /* Start at bit 1 because vpi zero is reserved for the physical port */ |
| 86 | vpi = find_next_zero_bit(phba->vpi_bmask, (phba->max_vpi + 1), 1); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 87 | if (vpi > phba->max_vpi) |
| 88 | vpi = 0; |
| 89 | else |
| 90 | set_bit(vpi, phba->vpi_bmask); |
| 91 | spin_unlock_irq(&phba->hbalock); |
| 92 | return vpi; |
| 93 | } |
| 94 | |
| 95 | static void |
| 96 | lpfc_free_vpi(struct lpfc_hba *phba, int vpi) |
| 97 | { |
| 98 | spin_lock_irq(&phba->hbalock); |
| 99 | clear_bit(vpi, phba->vpi_bmask); |
| 100 | spin_unlock_irq(&phba->hbalock); |
| 101 | } |
| 102 | |
| 103 | static int |
| 104 | lpfc_vport_sparm(struct lpfc_hba *phba, struct lpfc_vport *vport) |
| 105 | { |
| 106 | LPFC_MBOXQ_t *pmb; |
| 107 | MAILBOX_t *mb; |
| 108 | struct lpfc_dmabuf *mp; |
| 109 | int rc; |
| 110 | |
| 111 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 112 | if (!pmb) { |
| 113 | return -ENOMEM; |
| 114 | } |
| 115 | mb = &pmb->mb; |
| 116 | |
| 117 | lpfc_read_sparam(phba, pmb, vport->vpi); |
| 118 | /* |
| 119 | * Grab buffer pointer and clear context1 so we can use |
| 120 | * lpfc_sli_issue_box_wait |
| 121 | */ |
| 122 | mp = (struct lpfc_dmabuf *) pmb->context1; |
| 123 | pmb->context1 = NULL; |
| 124 | |
| 125 | pmb->vport = vport; |
| 126 | rc = lpfc_sli_issue_mbox_wait(phba, pmb, phba->fc_ratov * 2); |
| 127 | if (rc != MBX_SUCCESS) { |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame^] | 128 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT | LOG_VPORT, |
| 129 | "1818 VPort failed init, mbxCmd x%x " |
| 130 | "READ_SPARM mbxStatus x%x, rc = x%x\n", |
| 131 | mb->mbxCommand, mb->mbxStatus, rc); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 132 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| 133 | kfree(mp); |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 134 | if (rc != MBX_TIMEOUT) |
| 135 | mempool_free(pmb, phba->mbox_mem_pool); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 136 | return -EIO; |
| 137 | } |
| 138 | |
| 139 | memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); |
| 140 | memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, |
| 141 | sizeof (struct lpfc_name)); |
| 142 | memcpy(&vport->fc_portname, &vport->fc_sparam.portName, |
| 143 | sizeof (struct lpfc_name)); |
| 144 | |
| 145 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| 146 | kfree(mp); |
| 147 | mempool_free(pmb, phba->mbox_mem_pool); |
| 148 | |
| 149 | return 0; |
| 150 | } |
| 151 | |
| 152 | static int |
| 153 | lpfc_valid_wwn_format(struct lpfc_hba *phba, struct lpfc_name *wwn, |
| 154 | const char *name_type) |
| 155 | { |
| 156 | /* ensure that IEEE format 1 addresses |
| 157 | * contain zeros in bits 59-48 |
| 158 | */ |
| 159 | if (!((wwn->u.wwn[0] >> 4) == 1 && |
| 160 | ((wwn->u.wwn[0] & 0xf) != 0 || (wwn->u.wwn[1] & 0xf) != 0))) |
| 161 | return 1; |
| 162 | |
| 163 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame^] | 164 | "1822 Invalid %s: %02x:%02x:%02x:%02x:" |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 165 | "%02x:%02x:%02x:%02x\n", |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame^] | 166 | name_type, |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 167 | wwn->u.wwn[0], wwn->u.wwn[1], |
| 168 | wwn->u.wwn[2], wwn->u.wwn[3], |
| 169 | wwn->u.wwn[4], wwn->u.wwn[5], |
| 170 | wwn->u.wwn[6], wwn->u.wwn[7]); |
| 171 | return 0; |
| 172 | } |
| 173 | |
| 174 | static int |
| 175 | lpfc_unique_wwpn(struct lpfc_hba *phba, struct lpfc_vport *new_vport) |
| 176 | { |
| 177 | struct lpfc_vport *vport; |
James Smart | 549e55c | 2007-08-02 11:09:51 -0400 | [diff] [blame] | 178 | unsigned long flags; |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 179 | |
James Smart | 549e55c | 2007-08-02 11:09:51 -0400 | [diff] [blame] | 180 | spin_lock_irqsave(&phba->hbalock, flags); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 181 | list_for_each_entry(vport, &phba->port_list, listentry) { |
| 182 | if (vport == new_vport) |
| 183 | continue; |
| 184 | /* If they match, return not unique */ |
| 185 | if (memcmp(&vport->fc_sparam.portName, |
James Smart | 549e55c | 2007-08-02 11:09:51 -0400 | [diff] [blame] | 186 | &new_vport->fc_sparam.portName, |
| 187 | sizeof(struct lpfc_name)) == 0) { |
| 188 | spin_unlock_irqrestore(&phba->hbalock, flags); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 189 | return 0; |
James Smart | 549e55c | 2007-08-02 11:09:51 -0400 | [diff] [blame] | 190 | } |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 191 | } |
James Smart | 549e55c | 2007-08-02 11:09:51 -0400 | [diff] [blame] | 192 | spin_unlock_irqrestore(&phba->hbalock, flags); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 193 | return 1; |
| 194 | } |
| 195 | |
| 196 | int |
| 197 | lpfc_vport_create(struct fc_vport *fc_vport, bool disable) |
| 198 | { |
| 199 | struct lpfc_nodelist *ndlp; |
James Smart | 3de2a65 | 2007-08-02 11:09:59 -0400 | [diff] [blame] | 200 | struct Scsi_Host *shost = fc_vport->shost; |
| 201 | struct lpfc_vport *pport = (struct lpfc_vport *) shost->hostdata; |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 202 | struct lpfc_hba *phba = pport->phba; |
| 203 | struct lpfc_vport *vport = NULL; |
| 204 | int instance; |
| 205 | int vpi; |
| 206 | int rc = VPORT_ERROR; |
| 207 | |
| 208 | if ((phba->sli_rev < 3) || |
| 209 | !(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { |
| 210 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame^] | 211 | "1808 Create VPORT failed: " |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 212 | "NPIV is not enabled: SLImode:%d\n", |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame^] | 213 | phba->sli_rev); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 214 | rc = VPORT_INVAL; |
| 215 | goto error_out; |
| 216 | } |
| 217 | |
| 218 | vpi = lpfc_alloc_vpi(phba); |
| 219 | if (vpi == 0) { |
| 220 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame^] | 221 | "1809 Create VPORT failed: " |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 222 | "Max VPORTs (%d) exceeded\n", |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame^] | 223 | phba->max_vpi); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 224 | rc = VPORT_NORESOURCES; |
| 225 | goto error_out; |
| 226 | } |
| 227 | |
| 228 | |
| 229 | /* Assign an unused board number */ |
| 230 | if ((instance = lpfc_get_instance()) < 0) { |
| 231 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame^] | 232 | "1810 Create VPORT failed: Cannot get " |
| 233 | "instance number\n"); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 234 | lpfc_free_vpi(phba, vpi); |
| 235 | rc = VPORT_NORESOURCES; |
| 236 | goto error_out; |
| 237 | } |
| 238 | |
James Smart | 3de2a65 | 2007-08-02 11:09:59 -0400 | [diff] [blame] | 239 | vport = lpfc_create_port(phba, instance, &fc_vport->dev); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 240 | if (!vport) { |
| 241 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame^] | 242 | "1811 Create VPORT failed: vpi x%x\n", vpi); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 243 | lpfc_free_vpi(phba, vpi); |
| 244 | rc = VPORT_NORESOURCES; |
| 245 | goto error_out; |
| 246 | } |
| 247 | |
| 248 | vport->vpi = vpi; |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 249 | lpfc_debugfs_initialize(vport); |
| 250 | |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 251 | if (lpfc_vport_sparm(phba, vport)) { |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame^] | 252 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
| 253 | "1813 Create VPORT failed. " |
| 254 | "Cannot get sparam\n"); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 255 | lpfc_free_vpi(phba, vpi); |
| 256 | destroy_port(vport); |
| 257 | rc = VPORT_NORESOURCES; |
| 258 | goto error_out; |
| 259 | } |
| 260 | |
| 261 | memcpy(vport->fc_portname.u.wwn, vport->fc_sparam.portName.u.wwn, 8); |
| 262 | memcpy(vport->fc_nodename.u.wwn, vport->fc_sparam.nodeName.u.wwn, 8); |
| 263 | |
| 264 | if (fc_vport->node_name != 0) |
| 265 | u64_to_wwn(fc_vport->node_name, vport->fc_nodename.u.wwn); |
| 266 | if (fc_vport->port_name != 0) |
| 267 | u64_to_wwn(fc_vport->port_name, vport->fc_portname.u.wwn); |
| 268 | |
| 269 | memcpy(&vport->fc_sparam.portName, vport->fc_portname.u.wwn, 8); |
| 270 | memcpy(&vport->fc_sparam.nodeName, vport->fc_nodename.u.wwn, 8); |
| 271 | |
| 272 | if (!lpfc_valid_wwn_format(phba, &vport->fc_sparam.nodeName, "WWNN") || |
| 273 | !lpfc_valid_wwn_format(phba, &vport->fc_sparam.portName, "WWPN")) { |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame^] | 274 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
| 275 | "1821 Create VPORT failed. " |
| 276 | "Invalid WWN format\n"); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 277 | lpfc_free_vpi(phba, vpi); |
| 278 | destroy_port(vport); |
| 279 | rc = VPORT_INVAL; |
| 280 | goto error_out; |
| 281 | } |
| 282 | |
| 283 | if (!lpfc_unique_wwpn(phba, vport)) { |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame^] | 284 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
| 285 | "1823 Create VPORT failed. " |
| 286 | "Duplicate WWN on HBA\n"); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 287 | lpfc_free_vpi(phba, vpi); |
| 288 | destroy_port(vport); |
| 289 | rc = VPORT_INVAL; |
| 290 | goto error_out; |
| 291 | } |
| 292 | |
| 293 | *(struct lpfc_vport **)fc_vport->dd_data = vport; |
| 294 | vport->fc_vport = fc_vport; |
| 295 | |
| 296 | if ((phba->link_state < LPFC_LINK_UP) || |
| 297 | (phba->fc_topology == TOPOLOGY_LOOP)) { |
| 298 | lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); |
| 299 | rc = VPORT_OK; |
| 300 | goto out; |
| 301 | } |
| 302 | |
| 303 | if (disable) { |
| 304 | rc = VPORT_OK; |
| 305 | goto out; |
| 306 | } |
| 307 | |
| 308 | /* Use the Physical nodes Fabric NDLP to determine if the link is |
| 309 | * up and ready to FDISC. |
| 310 | */ |
| 311 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); |
| 312 | if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 313 | if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) { |
| 314 | lpfc_set_disctmo(vport); |
| 315 | lpfc_initial_fdisc(vport); |
| 316 | } else { |
| 317 | lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame^] | 318 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
| 319 | "0262 No NPIV Fabric support\n"); |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 320 | } |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 321 | } else { |
| 322 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| 323 | } |
| 324 | rc = VPORT_OK; |
| 325 | |
| 326 | out: |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 327 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
| 328 | "1825 Vport Created.\n"); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 329 | lpfc_host_attrib_init(lpfc_shost_from_vport(vport)); |
| 330 | error_out: |
| 331 | return rc; |
| 332 | } |
| 333 | |
| 334 | int |
| 335 | disable_vport(struct fc_vport *fc_vport) |
| 336 | { |
| 337 | struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; |
| 338 | struct lpfc_hba *phba = vport->phba; |
| 339 | struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; |
| 340 | long timeout; |
| 341 | |
| 342 | ndlp = lpfc_findnode_did(vport, Fabric_DID); |
| 343 | if (ndlp && phba->link_state >= LPFC_LINK_UP) { |
| 344 | vport->unreg_vpi_cmpl = VPORT_INVAL; |
| 345 | timeout = msecs_to_jiffies(phba->fc_ratov * 2000); |
| 346 | if (!lpfc_issue_els_npiv_logo(vport, ndlp)) |
| 347 | while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout) |
| 348 | timeout = schedule_timeout(timeout); |
| 349 | } |
| 350 | |
| 351 | lpfc_sli_host_down(vport); |
| 352 | |
| 353 | /* Mark all nodes for discovery so we can remove them by |
| 354 | * calling lpfc_cleanup_rpis(vport, 1) |
| 355 | */ |
| 356 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
| 357 | if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) |
| 358 | continue; |
| 359 | lpfc_disc_state_machine(vport, ndlp, NULL, |
| 360 | NLP_EVT_DEVICE_RECOVERY); |
| 361 | } |
| 362 | lpfc_cleanup_rpis(vport, 1); |
| 363 | |
| 364 | lpfc_stop_vport_timers(vport); |
| 365 | lpfc_unreg_all_rpis(vport); |
| 366 | lpfc_unreg_default_rpis(vport); |
| 367 | /* |
| 368 | * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) does the |
| 369 | * scsi_host_put() to release the vport. |
| 370 | */ |
| 371 | lpfc_mbx_unreg_vpi(vport); |
| 372 | |
| 373 | lpfc_vport_set_state(vport, FC_VPORT_DISABLED); |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 374 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
| 375 | "1826 Vport Disabled.\n"); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 376 | return VPORT_OK; |
| 377 | } |
| 378 | |
| 379 | int |
| 380 | enable_vport(struct fc_vport *fc_vport) |
| 381 | { |
| 382 | struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; |
| 383 | struct lpfc_hba *phba = vport->phba; |
| 384 | struct lpfc_nodelist *ndlp = NULL; |
| 385 | |
| 386 | if ((phba->link_state < LPFC_LINK_UP) || |
| 387 | (phba->fc_topology == TOPOLOGY_LOOP)) { |
| 388 | lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); |
| 389 | return VPORT_OK; |
| 390 | } |
| 391 | |
| 392 | vport->load_flag |= FC_LOADING; |
| 393 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
| 394 | |
| 395 | /* Use the Physical nodes Fabric NDLP to determine if the link is |
| 396 | * up and ready to FDISC. |
| 397 | */ |
| 398 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); |
| 399 | if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 400 | if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) { |
| 401 | lpfc_set_disctmo(vport); |
| 402 | lpfc_initial_fdisc(vport); |
| 403 | } else { |
| 404 | lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame^] | 405 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
| 406 | "0264 No NPIV Fabric support\n"); |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 407 | } |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 408 | } else { |
| 409 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| 410 | } |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 411 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
| 412 | "1827 Vport Enabled.\n"); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 413 | return VPORT_OK; |
| 414 | } |
| 415 | |
| 416 | int |
| 417 | lpfc_vport_disable(struct fc_vport *fc_vport, bool disable) |
| 418 | { |
| 419 | if (disable) |
| 420 | return disable_vport(fc_vport); |
| 421 | else |
| 422 | return enable_vport(fc_vport); |
| 423 | } |
| 424 | |
| 425 | |
| 426 | int |
| 427 | lpfc_vport_delete(struct fc_vport *fc_vport) |
| 428 | { |
| 429 | struct lpfc_nodelist *ndlp = NULL; |
| 430 | struct lpfc_nodelist *next_ndlp; |
| 431 | struct Scsi_Host *shost = (struct Scsi_Host *) fc_vport->shost; |
| 432 | struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; |
| 433 | struct lpfc_hba *phba = vport->phba; |
| 434 | long timeout; |
| 435 | int rc = VPORT_ERROR; |
| 436 | |
| 437 | /* |
| 438 | * This is a bit of a mess. We want to ensure the shost doesn't get |
| 439 | * torn down until we're done with the embedded lpfc_vport structure. |
| 440 | * |
| 441 | * Beyond holding a reference for this function, we also need a |
| 442 | * reference for outstanding I/O requests we schedule during delete |
| 443 | * processing. But once we scsi_remove_host() we can no longer obtain |
| 444 | * a reference through scsi_host_get(). |
| 445 | * |
| 446 | * So we take two references here. We release one reference at the |
| 447 | * bottom of the function -- after delinking the vport. And we |
| 448 | * release the other at the completion of the unreg_vpi that get's |
| 449 | * initiated after we've disposed of all other resources associated |
| 450 | * with the port. |
| 451 | */ |
| 452 | if (!scsi_host_get(shost) || !scsi_host_get(shost)) |
| 453 | return VPORT_INVAL; |
| 454 | |
| 455 | if (vport->port_type == LPFC_PHYSICAL_PORT) { |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame^] | 456 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
| 457 | "1812 vport_delete failed: Cannot delete " |
| 458 | "physical host\n"); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 459 | goto out; |
| 460 | } |
| 461 | |
| 462 | vport->load_flag |= FC_UNLOADING; |
| 463 | |
| 464 | kfree(vport->vname); |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 465 | lpfc_debugfs_terminate(vport); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 466 | fc_remove_host(lpfc_shost_from_vport(vport)); |
| 467 | scsi_remove_host(lpfc_shost_from_vport(vport)); |
| 468 | |
| 469 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); |
| 470 | if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE && |
| 471 | phba->link_state >= LPFC_LINK_UP) { |
| 472 | |
| 473 | /* First look for the Fabric ndlp */ |
| 474 | ndlp = lpfc_findnode_did(vport, Fabric_DID); |
| 475 | if (!ndlp) { |
| 476 | /* Cannot find existing Fabric ndlp, allocate one */ |
| 477 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
| 478 | if (!ndlp) |
| 479 | goto skip_logo; |
| 480 | lpfc_nlp_init(vport, ndlp, Fabric_DID); |
| 481 | } else { |
| 482 | lpfc_dequeue_node(vport, ndlp); |
| 483 | } |
| 484 | vport->unreg_vpi_cmpl = VPORT_INVAL; |
| 485 | timeout = msecs_to_jiffies(phba->fc_ratov * 2000); |
| 486 | if (!lpfc_issue_els_npiv_logo(vport, ndlp)) |
| 487 | while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout) |
| 488 | timeout = schedule_timeout(timeout); |
| 489 | } |
| 490 | |
| 491 | skip_logo: |
| 492 | lpfc_sli_host_down(vport); |
| 493 | |
| 494 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
| 495 | lpfc_disc_state_machine(vport, ndlp, NULL, |
| 496 | NLP_EVT_DEVICE_RECOVERY); |
| 497 | lpfc_disc_state_machine(vport, ndlp, NULL, |
| 498 | NLP_EVT_DEVICE_RM); |
| 499 | } |
| 500 | |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 501 | lpfc_stop_vport_timers(vport); |
| 502 | lpfc_unreg_all_rpis(vport); |
| 503 | lpfc_unreg_default_rpis(vport); |
| 504 | /* |
| 505 | * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) does the |
| 506 | * scsi_host_put() to release the vport. |
| 507 | */ |
| 508 | lpfc_mbx_unreg_vpi(vport); |
| 509 | |
| 510 | lpfc_free_vpi(phba, vport->vpi); |
| 511 | vport->work_port_events = 0; |
| 512 | spin_lock_irq(&phba->hbalock); |
| 513 | list_del_init(&vport->listentry); |
| 514 | spin_unlock_irq(&phba->hbalock); |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 515 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
| 516 | "1828 Vport Deleted.\n"); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 517 | rc = VPORT_OK; |
| 518 | out: |
| 519 | scsi_host_put(shost); |
| 520 | return rc; |
| 521 | } |
| 522 | |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 523 | EXPORT_SYMBOL(lpfc_vport_create); |
| 524 | EXPORT_SYMBOL(lpfc_vport_delete); |
James Smart | 549e55c | 2007-08-02 11:09:51 -0400 | [diff] [blame] | 525 | |
| 526 | struct lpfc_vport ** |
| 527 | lpfc_create_vport_work_array(struct lpfc_hba *phba) |
| 528 | { |
| 529 | struct lpfc_vport *port_iterator; |
| 530 | struct lpfc_vport **vports; |
| 531 | int index = 0; |
| 532 | vports = kzalloc(LPFC_MAX_VPORTS * sizeof(struct lpfc_vport *), |
| 533 | GFP_KERNEL); |
| 534 | if (vports == NULL) |
| 535 | return NULL; |
| 536 | spin_lock_irq(&phba->hbalock); |
| 537 | list_for_each_entry(port_iterator, &phba->port_list, listentry) { |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame^] | 538 | if (!scsi_host_get(lpfc_shost_from_vport(port_iterator))) { |
| 539 | lpfc_printf_vlog(port_iterator, KERN_ERR, LOG_VPORT, |
| 540 | "1801 Create vport work array FAILED: " |
| 541 | "cannot do scsi_host_get\n"); |
James Smart | 549e55c | 2007-08-02 11:09:51 -0400 | [diff] [blame] | 542 | continue; |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame^] | 543 | } |
James Smart | 549e55c | 2007-08-02 11:09:51 -0400 | [diff] [blame] | 544 | vports[index++] = port_iterator; |
| 545 | } |
| 546 | spin_unlock_irq(&phba->hbalock); |
| 547 | return vports; |
| 548 | } |
| 549 | |
| 550 | void |
| 551 | lpfc_destroy_vport_work_array(struct lpfc_vport **vports) |
| 552 | { |
| 553 | int i; |
| 554 | if (vports == NULL) |
| 555 | return; |
| 556 | for (i=0; vports[i] != NULL && i < LPFC_MAX_VPORTS; i++) |
| 557 | scsi_host_put(lpfc_shost_from_vport(vports[i])); |
| 558 | kfree(vports); |
| 559 | } |