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. * |
James Smart | e47c909 | 2008-02-08 18:49:26 -0500 | [diff] [blame] | 4 | * Copyright (C) 2004-2008 Emulex. All rights reserved. * |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 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" |
James Smart | ea2151b | 2008-09-07 11:52:10 -0400 | [diff] [blame] | 37 | #include "lpfc_nl.h" |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 38 | #include "lpfc_disc.h" |
| 39 | #include "lpfc_scsi.h" |
| 40 | #include "lpfc.h" |
| 41 | #include "lpfc_logmsg.h" |
| 42 | #include "lpfc_crtn.h" |
| 43 | #include "lpfc_version.h" |
| 44 | #include "lpfc_vport.h" |
| 45 | |
| 46 | inline void lpfc_vport_set_state(struct lpfc_vport *vport, |
| 47 | enum fc_vport_state new_state) |
| 48 | { |
| 49 | struct fc_vport *fc_vport = vport->fc_vport; |
| 50 | |
| 51 | if (fc_vport) { |
| 52 | /* |
| 53 | * When the transport defines fc_vport_set state we will replace |
| 54 | * this code with the following line |
| 55 | */ |
| 56 | /* fc_vport_set_state(fc_vport, new_state); */ |
| 57 | if (new_state != FC_VPORT_INITIALIZING) |
| 58 | fc_vport->vport_last_state = fc_vport->vport_state; |
| 59 | fc_vport->vport_state = new_state; |
| 60 | } |
| 61 | |
| 62 | /* for all the error states we will set the invternal state to FAILED */ |
| 63 | switch (new_state) { |
| 64 | case FC_VPORT_NO_FABRIC_SUPP: |
| 65 | case FC_VPORT_NO_FABRIC_RSCS: |
| 66 | case FC_VPORT_FABRIC_LOGOUT: |
| 67 | case FC_VPORT_FABRIC_REJ_WWN: |
| 68 | case FC_VPORT_FAILED: |
| 69 | vport->port_state = LPFC_VPORT_FAILED; |
| 70 | break; |
| 71 | case FC_VPORT_LINKDOWN: |
| 72 | vport->port_state = LPFC_VPORT_UNKNOWN; |
| 73 | break; |
| 74 | default: |
| 75 | /* do nothing */ |
| 76 | break; |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | static int |
| 81 | lpfc_alloc_vpi(struct lpfc_hba *phba) |
| 82 | { |
| 83 | int vpi; |
| 84 | |
| 85 | spin_lock_irq(&phba->hbalock); |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 86 | /* Start at bit 1 because vpi zero is reserved for the physical port */ |
| 87 | 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] | 88 | if (vpi > phba->max_vpi) |
| 89 | vpi = 0; |
| 90 | else |
| 91 | set_bit(vpi, phba->vpi_bmask); |
| 92 | spin_unlock_irq(&phba->hbalock); |
| 93 | return vpi; |
| 94 | } |
| 95 | |
| 96 | static void |
| 97 | lpfc_free_vpi(struct lpfc_hba *phba, int vpi) |
| 98 | { |
| 99 | spin_lock_irq(&phba->hbalock); |
| 100 | clear_bit(vpi, phba->vpi_bmask); |
| 101 | spin_unlock_irq(&phba->hbalock); |
| 102 | } |
| 103 | |
| 104 | static int |
| 105 | lpfc_vport_sparm(struct lpfc_hba *phba, struct lpfc_vport *vport) |
| 106 | { |
| 107 | LPFC_MBOXQ_t *pmb; |
| 108 | MAILBOX_t *mb; |
| 109 | struct lpfc_dmabuf *mp; |
| 110 | int rc; |
| 111 | |
| 112 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 113 | if (!pmb) { |
| 114 | return -ENOMEM; |
| 115 | } |
| 116 | mb = &pmb->mb; |
| 117 | |
| 118 | lpfc_read_sparam(phba, pmb, vport->vpi); |
| 119 | /* |
| 120 | * Grab buffer pointer and clear context1 so we can use |
| 121 | * lpfc_sli_issue_box_wait |
| 122 | */ |
| 123 | mp = (struct lpfc_dmabuf *) pmb->context1; |
| 124 | pmb->context1 = NULL; |
| 125 | |
| 126 | pmb->vport = vport; |
| 127 | rc = lpfc_sli_issue_mbox_wait(phba, pmb, phba->fc_ratov * 2); |
| 128 | if (rc != MBX_SUCCESS) { |
James Smart | 98c9ea5 | 2007-10-27 13:37:33 -0400 | [diff] [blame] | 129 | if (signal_pending(current)) { |
| 130 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT | LOG_VPORT, |
| 131 | "1830 Signal aborted mbxCmd x%x\n", |
| 132 | mb->mbxCommand); |
| 133 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| 134 | kfree(mp); |
| 135 | if (rc != MBX_TIMEOUT) |
| 136 | mempool_free(pmb, phba->mbox_mem_pool); |
| 137 | return -EINTR; |
| 138 | } else { |
| 139 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT | LOG_VPORT, |
| 140 | "1818 VPort failed init, mbxCmd x%x " |
| 141 | "READ_SPARM mbxStatus x%x, rc = x%x\n", |
| 142 | mb->mbxCommand, mb->mbxStatus, rc); |
| 143 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| 144 | kfree(mp); |
| 145 | if (rc != MBX_TIMEOUT) |
| 146 | mempool_free(pmb, phba->mbox_mem_pool); |
| 147 | return -EIO; |
| 148 | } |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 149 | } |
| 150 | |
| 151 | memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); |
| 152 | memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, |
| 153 | sizeof (struct lpfc_name)); |
| 154 | memcpy(&vport->fc_portname, &vport->fc_sparam.portName, |
| 155 | sizeof (struct lpfc_name)); |
| 156 | |
| 157 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| 158 | kfree(mp); |
| 159 | mempool_free(pmb, phba->mbox_mem_pool); |
| 160 | |
| 161 | return 0; |
| 162 | } |
| 163 | |
| 164 | static int |
| 165 | lpfc_valid_wwn_format(struct lpfc_hba *phba, struct lpfc_name *wwn, |
| 166 | const char *name_type) |
| 167 | { |
| 168 | /* ensure that IEEE format 1 addresses |
| 169 | * contain zeros in bits 59-48 |
| 170 | */ |
| 171 | if (!((wwn->u.wwn[0] >> 4) == 1 && |
| 172 | ((wwn->u.wwn[0] & 0xf) != 0 || (wwn->u.wwn[1] & 0xf) != 0))) |
| 173 | return 1; |
| 174 | |
| 175 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 176 | "1822 Invalid %s: %02x:%02x:%02x:%02x:" |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 177 | "%02x:%02x:%02x:%02x\n", |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 178 | name_type, |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 179 | wwn->u.wwn[0], wwn->u.wwn[1], |
| 180 | wwn->u.wwn[2], wwn->u.wwn[3], |
| 181 | wwn->u.wwn[4], wwn->u.wwn[5], |
| 182 | wwn->u.wwn[6], wwn->u.wwn[7]); |
| 183 | return 0; |
| 184 | } |
| 185 | |
| 186 | static int |
| 187 | lpfc_unique_wwpn(struct lpfc_hba *phba, struct lpfc_vport *new_vport) |
| 188 | { |
| 189 | struct lpfc_vport *vport; |
James Smart | 549e55c | 2007-08-02 11:09:51 -0400 | [diff] [blame] | 190 | unsigned long flags; |
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_lock_irqsave(&phba->hbalock, flags); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 193 | list_for_each_entry(vport, &phba->port_list, listentry) { |
| 194 | if (vport == new_vport) |
| 195 | continue; |
| 196 | /* If they match, return not unique */ |
| 197 | if (memcmp(&vport->fc_sparam.portName, |
James Smart | 549e55c | 2007-08-02 11:09:51 -0400 | [diff] [blame] | 198 | &new_vport->fc_sparam.portName, |
| 199 | sizeof(struct lpfc_name)) == 0) { |
| 200 | spin_unlock_irqrestore(&phba->hbalock, flags); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 201 | return 0; |
James Smart | 549e55c | 2007-08-02 11:09:51 -0400 | [diff] [blame] | 202 | } |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 203 | } |
James Smart | 549e55c | 2007-08-02 11:09:51 -0400 | [diff] [blame] | 204 | spin_unlock_irqrestore(&phba->hbalock, flags); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 205 | return 1; |
| 206 | } |
| 207 | |
James Smart | 90160e0 | 2008-08-24 21:49:45 -0400 | [diff] [blame] | 208 | /** |
| 209 | * lpfc_discovery_wait: Wait for driver discovery to quiesce. |
| 210 | * @vport: The virtual port for which this call is being executed. |
| 211 | * |
| 212 | * This driver calls this routine specifically from lpfc_vport_delete |
| 213 | * to enforce a synchronous execution of vport |
| 214 | * delete relative to discovery activities. The |
| 215 | * lpfc_vport_delete routine should not return until it |
| 216 | * can reasonably guarantee that discovery has quiesced. |
| 217 | * Post FDISC LOGO, the driver must wait until its SAN teardown is |
| 218 | * complete and all resources recovered before allowing |
| 219 | * cleanup. |
| 220 | * |
| 221 | * This routine does not require any locks held. |
| 222 | **/ |
| 223 | static void lpfc_discovery_wait(struct lpfc_vport *vport) |
| 224 | { |
| 225 | struct lpfc_hba *phba = vport->phba; |
| 226 | uint32_t wait_flags = 0; |
| 227 | unsigned long wait_time_max; |
| 228 | unsigned long start_time; |
| 229 | |
| 230 | wait_flags = FC_RSCN_MODE | FC_RSCN_DISCOVERY | FC_NLP_MORE | |
| 231 | FC_RSCN_DEFERRED | FC_NDISC_ACTIVE | FC_DISC_TMO; |
| 232 | |
| 233 | /* |
| 234 | * The time constraint on this loop is a balance between the |
| 235 | * fabric RA_TOV value and dev_loss tmo. The driver's |
| 236 | * devloss_tmo is 10 giving this loop a 3x multiplier minimally. |
| 237 | */ |
| 238 | wait_time_max = msecs_to_jiffies(((phba->fc_ratov * 3) + 3) * 1000); |
| 239 | wait_time_max += jiffies; |
| 240 | start_time = jiffies; |
| 241 | while (time_before(jiffies, wait_time_max)) { |
| 242 | if ((vport->num_disc_nodes > 0) || |
| 243 | (vport->fc_flag & wait_flags) || |
| 244 | ((vport->port_state > LPFC_VPORT_FAILED) && |
| 245 | (vport->port_state < LPFC_VPORT_READY))) { |
| 246 | lpfc_printf_log(phba, KERN_INFO, LOG_VPORT, |
| 247 | "1833 Vport discovery quiesce Wait:" |
| 248 | " vpi x%x state x%x fc_flags x%x" |
| 249 | " num_nodes x%x, waiting 1000 msecs" |
| 250 | " total wait msecs x%x\n", |
| 251 | vport->vpi, vport->port_state, |
| 252 | vport->fc_flag, vport->num_disc_nodes, |
| 253 | jiffies_to_msecs(jiffies - start_time)); |
| 254 | msleep(1000); |
| 255 | } else { |
| 256 | /* Base case. Wait variants satisfied. Break out */ |
| 257 | lpfc_printf_log(phba, KERN_INFO, LOG_VPORT, |
| 258 | "1834 Vport discovery quiesced:" |
| 259 | " vpi x%x state x%x fc_flags x%x" |
| 260 | " wait msecs x%x\n", |
| 261 | vport->vpi, vport->port_state, |
| 262 | vport->fc_flag, |
| 263 | jiffies_to_msecs(jiffies |
| 264 | - start_time)); |
| 265 | break; |
| 266 | } |
| 267 | } |
| 268 | |
| 269 | if (time_after(jiffies, wait_time_max)) |
| 270 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, |
| 271 | "1835 Vport discovery quiesce failed:" |
| 272 | " vpi x%x state x%x fc_flags x%x" |
| 273 | " wait msecs x%x\n", |
| 274 | vport->vpi, vport->port_state, |
| 275 | vport->fc_flag, |
| 276 | jiffies_to_msecs(jiffies - start_time)); |
| 277 | } |
| 278 | |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 279 | int |
| 280 | lpfc_vport_create(struct fc_vport *fc_vport, bool disable) |
| 281 | { |
| 282 | struct lpfc_nodelist *ndlp; |
James Smart | 3de2a65 | 2007-08-02 11:09:59 -0400 | [diff] [blame] | 283 | struct Scsi_Host *shost = fc_vport->shost; |
| 284 | struct lpfc_vport *pport = (struct lpfc_vport *) shost->hostdata; |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 285 | struct lpfc_hba *phba = pport->phba; |
| 286 | struct lpfc_vport *vport = NULL; |
| 287 | int instance; |
| 288 | int vpi; |
| 289 | int rc = VPORT_ERROR; |
James Smart | 98c9ea5 | 2007-10-27 13:37:33 -0400 | [diff] [blame] | 290 | int status; |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 291 | |
James Smart | eada272 | 2008-12-04 22:39:13 -0500 | [diff] [blame^] | 292 | if ((phba->sli_rev < 3) || !(phba->cfg_enable_npiv)) { |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 293 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 294 | "1808 Create VPORT failed: " |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 295 | "NPIV is not enabled: SLImode:%d\n", |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 296 | phba->sli_rev); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 297 | rc = VPORT_INVAL; |
| 298 | goto error_out; |
| 299 | } |
| 300 | |
| 301 | vpi = lpfc_alloc_vpi(phba); |
| 302 | if (vpi == 0) { |
| 303 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 304 | "1809 Create VPORT failed: " |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 305 | "Max VPORTs (%d) exceeded\n", |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 306 | phba->max_vpi); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 307 | rc = VPORT_NORESOURCES; |
| 308 | goto error_out; |
| 309 | } |
| 310 | |
| 311 | |
| 312 | /* Assign an unused board number */ |
| 313 | if ((instance = lpfc_get_instance()) < 0) { |
| 314 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 315 | "1810 Create VPORT failed: Cannot get " |
| 316 | "instance number\n"); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 317 | lpfc_free_vpi(phba, vpi); |
| 318 | rc = VPORT_NORESOURCES; |
| 319 | goto error_out; |
| 320 | } |
| 321 | |
James Smart | 3de2a65 | 2007-08-02 11:09:59 -0400 | [diff] [blame] | 322 | vport = lpfc_create_port(phba, instance, &fc_vport->dev); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 323 | if (!vport) { |
| 324 | lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 325 | "1811 Create VPORT failed: vpi x%x\n", vpi); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 326 | lpfc_free_vpi(phba, vpi); |
| 327 | rc = VPORT_NORESOURCES; |
| 328 | goto error_out; |
| 329 | } |
| 330 | |
| 331 | vport->vpi = vpi; |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 332 | lpfc_debugfs_initialize(vport); |
| 333 | |
James Smart | 98c9ea5 | 2007-10-27 13:37:33 -0400 | [diff] [blame] | 334 | if ((status = lpfc_vport_sparm(phba, vport))) { |
| 335 | if (status == -EINTR) { |
| 336 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
| 337 | "1831 Create VPORT Interrupted.\n"); |
| 338 | rc = VPORT_ERROR; |
| 339 | } else { |
| 340 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
| 341 | "1813 Create VPORT failed. " |
| 342 | "Cannot get sparam\n"); |
| 343 | rc = VPORT_NORESOURCES; |
| 344 | } |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 345 | lpfc_free_vpi(phba, vpi); |
| 346 | destroy_port(vport); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 347 | goto error_out; |
| 348 | } |
| 349 | |
| 350 | memcpy(vport->fc_portname.u.wwn, vport->fc_sparam.portName.u.wwn, 8); |
| 351 | memcpy(vport->fc_nodename.u.wwn, vport->fc_sparam.nodeName.u.wwn, 8); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 352 | if (fc_vport->node_name != 0) |
| 353 | u64_to_wwn(fc_vport->node_name, vport->fc_nodename.u.wwn); |
| 354 | if (fc_vport->port_name != 0) |
| 355 | u64_to_wwn(fc_vport->port_name, vport->fc_portname.u.wwn); |
| 356 | |
| 357 | memcpy(&vport->fc_sparam.portName, vport->fc_portname.u.wwn, 8); |
| 358 | memcpy(&vport->fc_sparam.nodeName, vport->fc_nodename.u.wwn, 8); |
| 359 | |
| 360 | if (!lpfc_valid_wwn_format(phba, &vport->fc_sparam.nodeName, "WWNN") || |
| 361 | !lpfc_valid_wwn_format(phba, &vport->fc_sparam.portName, "WWPN")) { |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 362 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
| 363 | "1821 Create VPORT failed. " |
| 364 | "Invalid WWN format\n"); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 365 | lpfc_free_vpi(phba, vpi); |
| 366 | destroy_port(vport); |
| 367 | rc = VPORT_INVAL; |
| 368 | goto error_out; |
| 369 | } |
| 370 | |
| 371 | if (!lpfc_unique_wwpn(phba, vport)) { |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 372 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
| 373 | "1823 Create VPORT failed. " |
| 374 | "Duplicate WWN on HBA\n"); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 375 | lpfc_free_vpi(phba, vpi); |
| 376 | destroy_port(vport); |
| 377 | rc = VPORT_INVAL; |
| 378 | goto error_out; |
| 379 | } |
| 380 | |
James Smart | eada272 | 2008-12-04 22:39:13 -0500 | [diff] [blame^] | 381 | /* Create binary sysfs attribute for vport */ |
| 382 | lpfc_alloc_sysfs_attr(vport); |
| 383 | |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 384 | *(struct lpfc_vport **)fc_vport->dd_data = vport; |
| 385 | vport->fc_vport = fc_vport; |
| 386 | |
| 387 | if ((phba->link_state < LPFC_LINK_UP) || |
| 388 | (phba->fc_topology == TOPOLOGY_LOOP)) { |
| 389 | lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); |
| 390 | rc = VPORT_OK; |
| 391 | goto out; |
| 392 | } |
| 393 | |
| 394 | if (disable) { |
James Smart | eada272 | 2008-12-04 22:39:13 -0500 | [diff] [blame^] | 395 | lpfc_vport_set_state(vport, FC_VPORT_DISABLED); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 396 | rc = VPORT_OK; |
| 397 | goto out; |
| 398 | } |
| 399 | |
| 400 | /* Use the Physical nodes Fabric NDLP to determine if the link is |
| 401 | * up and ready to FDISC. |
| 402 | */ |
| 403 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); |
James Smart | e47c909 | 2008-02-08 18:49:26 -0500 | [diff] [blame] | 404 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
| 405 | ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 406 | if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) { |
| 407 | lpfc_set_disctmo(vport); |
| 408 | lpfc_initial_fdisc(vport); |
| 409 | } else { |
| 410 | lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 411 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
| 412 | "0262 No NPIV Fabric support\n"); |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 413 | } |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 414 | } else { |
| 415 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| 416 | } |
| 417 | rc = VPORT_OK; |
| 418 | |
| 419 | out: |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 420 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
| 421 | "1825 Vport Created.\n"); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 422 | lpfc_host_attrib_init(lpfc_shost_from_vport(vport)); |
| 423 | error_out: |
| 424 | return rc; |
| 425 | } |
| 426 | |
James Smart | 311464e | 2007-08-02 11:10:37 -0400 | [diff] [blame] | 427 | static int |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 428 | disable_vport(struct fc_vport *fc_vport) |
| 429 | { |
| 430 | struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; |
| 431 | struct lpfc_hba *phba = vport->phba; |
| 432 | struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; |
| 433 | long timeout; |
| 434 | |
| 435 | ndlp = lpfc_findnode_did(vport, Fabric_DID); |
James Smart | e47c909 | 2008-02-08 18:49:26 -0500 | [diff] [blame] | 436 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
| 437 | && phba->link_state >= LPFC_LINK_UP) { |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 438 | vport->unreg_vpi_cmpl = VPORT_INVAL; |
| 439 | timeout = msecs_to_jiffies(phba->fc_ratov * 2000); |
| 440 | if (!lpfc_issue_els_npiv_logo(vport, ndlp)) |
| 441 | while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout) |
| 442 | timeout = schedule_timeout(timeout); |
| 443 | } |
| 444 | |
| 445 | lpfc_sli_host_down(vport); |
| 446 | |
| 447 | /* Mark all nodes for discovery so we can remove them by |
| 448 | * calling lpfc_cleanup_rpis(vport, 1) |
| 449 | */ |
| 450 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
James Smart | e47c909 | 2008-02-08 18:49:26 -0500 | [diff] [blame] | 451 | if (!NLP_CHK_NODE_ACT(ndlp)) |
| 452 | continue; |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 453 | if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) |
| 454 | continue; |
| 455 | lpfc_disc_state_machine(vport, ndlp, NULL, |
| 456 | NLP_EVT_DEVICE_RECOVERY); |
| 457 | } |
| 458 | lpfc_cleanup_rpis(vport, 1); |
| 459 | |
| 460 | lpfc_stop_vport_timers(vport); |
| 461 | lpfc_unreg_all_rpis(vport); |
| 462 | lpfc_unreg_default_rpis(vport); |
| 463 | /* |
| 464 | * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) does the |
| 465 | * scsi_host_put() to release the vport. |
| 466 | */ |
| 467 | lpfc_mbx_unreg_vpi(vport); |
| 468 | |
| 469 | lpfc_vport_set_state(vport, FC_VPORT_DISABLED); |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 470 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
| 471 | "1826 Vport Disabled.\n"); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 472 | return VPORT_OK; |
| 473 | } |
| 474 | |
James Smart | 311464e | 2007-08-02 11:10:37 -0400 | [diff] [blame] | 475 | static int |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 476 | enable_vport(struct fc_vport *fc_vport) |
| 477 | { |
| 478 | struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; |
| 479 | struct lpfc_hba *phba = vport->phba; |
| 480 | struct lpfc_nodelist *ndlp = NULL; |
| 481 | |
| 482 | if ((phba->link_state < LPFC_LINK_UP) || |
| 483 | (phba->fc_topology == TOPOLOGY_LOOP)) { |
| 484 | lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); |
| 485 | return VPORT_OK; |
| 486 | } |
| 487 | |
| 488 | vport->load_flag |= FC_LOADING; |
| 489 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
| 490 | |
| 491 | /* Use the Physical nodes Fabric NDLP to determine if the link is |
| 492 | * up and ready to FDISC. |
| 493 | */ |
| 494 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); |
James Smart | e47c909 | 2008-02-08 18:49:26 -0500 | [diff] [blame] | 495 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
| 496 | && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 497 | if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) { |
| 498 | lpfc_set_disctmo(vport); |
| 499 | lpfc_initial_fdisc(vport); |
| 500 | } else { |
| 501 | lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 502 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
| 503 | "0264 No NPIV Fabric support\n"); |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 504 | } |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 505 | } else { |
| 506 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| 507 | } |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 508 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
| 509 | "1827 Vport Enabled.\n"); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 510 | return VPORT_OK; |
| 511 | } |
| 512 | |
| 513 | int |
| 514 | lpfc_vport_disable(struct fc_vport *fc_vport, bool disable) |
| 515 | { |
| 516 | if (disable) |
| 517 | return disable_vport(fc_vport); |
| 518 | else |
| 519 | return enable_vport(fc_vport); |
| 520 | } |
| 521 | |
| 522 | |
| 523 | int |
| 524 | lpfc_vport_delete(struct fc_vport *fc_vport) |
| 525 | { |
| 526 | struct lpfc_nodelist *ndlp = NULL; |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 527 | struct Scsi_Host *shost = (struct Scsi_Host *) fc_vport->shost; |
| 528 | struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; |
| 529 | struct lpfc_hba *phba = vport->phba; |
| 530 | long timeout; |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 531 | |
James Smart | 51ef4c2 | 2007-08-02 11:10:31 -0400 | [diff] [blame] | 532 | if (vport->port_type == LPFC_PHYSICAL_PORT) { |
| 533 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
| 534 | "1812 vport_delete failed: Cannot delete " |
| 535 | "physical host\n"); |
| 536 | return VPORT_ERROR; |
| 537 | } |
| 538 | /* |
| 539 | * If we are not unloading the driver then prevent the vport_delete |
| 540 | * from happening until after this vport's discovery is finished. |
| 541 | */ |
| 542 | if (!(phba->pport->load_flag & FC_UNLOADING)) { |
| 543 | int check_count = 0; |
| 544 | while (check_count < ((phba->fc_ratov * 3) + 3) && |
| 545 | vport->port_state > LPFC_VPORT_FAILED && |
| 546 | vport->port_state < LPFC_VPORT_READY) { |
| 547 | check_count++; |
| 548 | msleep(1000); |
| 549 | } |
| 550 | if (vport->port_state > LPFC_VPORT_FAILED && |
| 551 | vport->port_state < LPFC_VPORT_READY) |
| 552 | return -EAGAIN; |
| 553 | } |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 554 | /* |
| 555 | * This is a bit of a mess. We want to ensure the shost doesn't get |
| 556 | * torn down until we're done with the embedded lpfc_vport structure. |
| 557 | * |
| 558 | * Beyond holding a reference for this function, we also need a |
| 559 | * reference for outstanding I/O requests we schedule during delete |
| 560 | * processing. But once we scsi_remove_host() we can no longer obtain |
| 561 | * a reference through scsi_host_get(). |
| 562 | * |
| 563 | * So we take two references here. We release one reference at the |
| 564 | * bottom of the function -- after delinking the vport. And we |
| 565 | * release the other at the completion of the unreg_vpi that get's |
| 566 | * initiated after we've disposed of all other resources associated |
| 567 | * with the port. |
| 568 | */ |
James Smart | d7c255b | 2008-08-24 21:50:00 -0400 | [diff] [blame] | 569 | if (!scsi_host_get(shost)) |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 570 | return VPORT_INVAL; |
James Smart | d7c255b | 2008-08-24 21:50:00 -0400 | [diff] [blame] | 571 | if (!scsi_host_get(shost)) { |
| 572 | scsi_host_put(shost); |
| 573 | return VPORT_INVAL; |
| 574 | } |
James Smart | 51ef4c2 | 2007-08-02 11:10:31 -0400 | [diff] [blame] | 575 | spin_lock_irq(&phba->hbalock); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 576 | vport->load_flag |= FC_UNLOADING; |
James Smart | 51ef4c2 | 2007-08-02 11:10:31 -0400 | [diff] [blame] | 577 | spin_unlock_irq(&phba->hbalock); |
James Smart | eada272 | 2008-12-04 22:39:13 -0500 | [diff] [blame^] | 578 | |
| 579 | lpfc_free_sysfs_attr(vport); |
| 580 | |
James Smart | 858c9f6 | 2007-06-17 19:56:39 -0500 | [diff] [blame] | 581 | lpfc_debugfs_terminate(vport); |
James Smart | eada272 | 2008-12-04 22:39:13 -0500 | [diff] [blame^] | 582 | |
| 583 | /* Remove FC host and then SCSI host with the vport */ |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 584 | fc_remove_host(lpfc_shost_from_vport(vport)); |
| 585 | scsi_remove_host(lpfc_shost_from_vport(vport)); |
| 586 | |
| 587 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); |
James Smart | e47c909 | 2008-02-08 18:49:26 -0500 | [diff] [blame] | 588 | |
| 589 | /* In case of driver unload, we shall not perform fabric logo as the |
| 590 | * worker thread already stopped at this stage and, in this case, we |
| 591 | * can safely skip the fabric logo. |
| 592 | */ |
| 593 | if (phba->pport->load_flag & FC_UNLOADING) { |
| 594 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
| 595 | ndlp->nlp_state == NLP_STE_UNMAPPED_NODE && |
| 596 | phba->link_state >= LPFC_LINK_UP) { |
| 597 | /* First look for the Fabric ndlp */ |
| 598 | ndlp = lpfc_findnode_did(vport, Fabric_DID); |
| 599 | if (!ndlp) |
| 600 | goto skip_logo; |
| 601 | else if (!NLP_CHK_NODE_ACT(ndlp)) { |
| 602 | ndlp = lpfc_enable_node(vport, ndlp, |
| 603 | NLP_STE_UNUSED_NODE); |
| 604 | if (!ndlp) |
| 605 | goto skip_logo; |
| 606 | } |
| 607 | /* Remove ndlp from vport npld list */ |
| 608 | lpfc_dequeue_node(vport, ndlp); |
| 609 | |
| 610 | /* Indicate free memory when release */ |
| 611 | spin_lock_irq(&phba->ndlp_lock); |
| 612 | NLP_SET_FREE_REQ(ndlp); |
| 613 | spin_unlock_irq(&phba->ndlp_lock); |
| 614 | /* Kick off release ndlp when it can be safely done */ |
| 615 | lpfc_nlp_put(ndlp); |
| 616 | } |
| 617 | goto skip_logo; |
| 618 | } |
| 619 | |
| 620 | /* Otherwise, we will perform fabric logo as needed */ |
| 621 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
| 622 | ndlp->nlp_state == NLP_STE_UNMAPPED_NODE && |
James Smart | 58da1ff | 2008-04-07 10:15:56 -0400 | [diff] [blame] | 623 | phba->link_state >= LPFC_LINK_UP && |
| 624 | phba->fc_topology != TOPOLOGY_LOOP) { |
James Smart | 7ee5d43 | 2007-10-27 13:37:17 -0400 | [diff] [blame] | 625 | if (vport->cfg_enable_da_id) { |
| 626 | timeout = msecs_to_jiffies(phba->fc_ratov * 2000); |
| 627 | if (!lpfc_ns_cmd(vport, SLI_CTNS_DA_ID, 0, 0)) |
| 628 | while (vport->ct_flags && timeout) |
| 629 | timeout = schedule_timeout(timeout); |
| 630 | else |
| 631 | lpfc_printf_log(vport->phba, KERN_WARNING, |
| 632 | LOG_VPORT, |
| 633 | "1829 CT command failed to " |
| 634 | "delete objects on fabric. \n"); |
| 635 | } |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 636 | /* First look for the Fabric ndlp */ |
| 637 | ndlp = lpfc_findnode_did(vport, Fabric_DID); |
| 638 | if (!ndlp) { |
| 639 | /* Cannot find existing Fabric ndlp, allocate one */ |
| 640 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
| 641 | if (!ndlp) |
| 642 | goto skip_logo; |
| 643 | lpfc_nlp_init(vport, ndlp, Fabric_DID); |
James Smart | e47c909 | 2008-02-08 18:49:26 -0500 | [diff] [blame] | 644 | /* Indicate free memory when release */ |
| 645 | NLP_SET_FREE_REQ(ndlp); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 646 | } else { |
James Smart | e47c909 | 2008-02-08 18:49:26 -0500 | [diff] [blame] | 647 | if (!NLP_CHK_NODE_ACT(ndlp)) |
| 648 | ndlp = lpfc_enable_node(vport, ndlp, |
| 649 | NLP_STE_UNUSED_NODE); |
| 650 | if (!ndlp) |
| 651 | goto skip_logo; |
| 652 | |
| 653 | /* Remove ndlp from vport npld list */ |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 654 | lpfc_dequeue_node(vport, ndlp); |
James Smart | e47c909 | 2008-02-08 18:49:26 -0500 | [diff] [blame] | 655 | spin_lock_irq(&phba->ndlp_lock); |
| 656 | if (!NLP_CHK_FREE_REQ(ndlp)) |
| 657 | /* Indicate free memory when release */ |
| 658 | NLP_SET_FREE_REQ(ndlp); |
| 659 | else { |
| 660 | /* Skip this if ndlp is already in free mode */ |
| 661 | spin_unlock_irq(&phba->ndlp_lock); |
| 662 | goto skip_logo; |
| 663 | } |
| 664 | spin_unlock_irq(&phba->ndlp_lock); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 665 | } |
| 666 | vport->unreg_vpi_cmpl = VPORT_INVAL; |
| 667 | timeout = msecs_to_jiffies(phba->fc_ratov * 2000); |
James Smart | d7c255b | 2008-08-24 21:50:00 -0400 | [diff] [blame] | 668 | if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) |
| 669 | goto skip_logo; |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 670 | if (!lpfc_issue_els_npiv_logo(vport, ndlp)) |
| 671 | while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout) |
| 672 | timeout = schedule_timeout(timeout); |
| 673 | } |
| 674 | |
James Smart | 90160e0 | 2008-08-24 21:49:45 -0400 | [diff] [blame] | 675 | if (!(phba->pport->load_flag & FC_UNLOADING)) |
| 676 | lpfc_discovery_wait(vport); |
| 677 | |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 678 | skip_logo: |
James Smart | 87af33f | 2007-10-27 13:37:43 -0400 | [diff] [blame] | 679 | lpfc_cleanup(vport); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 680 | lpfc_sli_host_down(vport); |
| 681 | |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 682 | lpfc_stop_vport_timers(vport); |
James Smart | 87af33f | 2007-10-27 13:37:43 -0400 | [diff] [blame] | 683 | |
| 684 | if (!(phba->pport->load_flag & FC_UNLOADING)) { |
James Smart | e47c909 | 2008-02-08 18:49:26 -0500 | [diff] [blame] | 685 | lpfc_unreg_all_rpis(vport); |
James Smart | 87af33f | 2007-10-27 13:37:43 -0400 | [diff] [blame] | 686 | lpfc_unreg_default_rpis(vport); |
| 687 | /* |
| 688 | * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) |
| 689 | * does the scsi_host_put() to release the vport. |
| 690 | */ |
James Smart | d7c255b | 2008-08-24 21:50:00 -0400 | [diff] [blame] | 691 | if (lpfc_mbx_unreg_vpi(vport)) |
| 692 | scsi_host_put(shost); |
| 693 | } else |
| 694 | scsi_host_put(shost); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 695 | |
| 696 | lpfc_free_vpi(phba, vport->vpi); |
| 697 | vport->work_port_events = 0; |
| 698 | spin_lock_irq(&phba->hbalock); |
| 699 | list_del_init(&vport->listentry); |
| 700 | spin_unlock_irq(&phba->hbalock); |
James Smart | a58cbd5 | 2007-08-02 11:09:43 -0400 | [diff] [blame] | 701 | lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
| 702 | "1828 Vport Deleted.\n"); |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 703 | scsi_host_put(shost); |
James Smart | 51ef4c2 | 2007-08-02 11:10:31 -0400 | [diff] [blame] | 704 | return VPORT_OK; |
James Smart | 92d7f7b | 2007-06-17 19:56:38 -0500 | [diff] [blame] | 705 | } |
| 706 | |
James Smart | 549e55c | 2007-08-02 11:09:51 -0400 | [diff] [blame] | 707 | struct lpfc_vport ** |
| 708 | lpfc_create_vport_work_array(struct lpfc_hba *phba) |
| 709 | { |
| 710 | struct lpfc_vport *port_iterator; |
| 711 | struct lpfc_vport **vports; |
| 712 | int index = 0; |
James Smart | 0937282 | 2008-01-11 01:52:54 -0500 | [diff] [blame] | 713 | vports = kzalloc((phba->max_vpi + 1) * sizeof(struct lpfc_vport *), |
James Smart | 549e55c | 2007-08-02 11:09:51 -0400 | [diff] [blame] | 714 | GFP_KERNEL); |
| 715 | if (vports == NULL) |
| 716 | return NULL; |
| 717 | spin_lock_irq(&phba->hbalock); |
| 718 | list_for_each_entry(port_iterator, &phba->port_list, listentry) { |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 719 | if (!scsi_host_get(lpfc_shost_from_vport(port_iterator))) { |
James Smart | 51ef4c2 | 2007-08-02 11:10:31 -0400 | [diff] [blame] | 720 | lpfc_printf_vlog(port_iterator, KERN_WARNING, LOG_VPORT, |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 721 | "1801 Create vport work array FAILED: " |
| 722 | "cannot do scsi_host_get\n"); |
James Smart | 549e55c | 2007-08-02 11:09:51 -0400 | [diff] [blame] | 723 | continue; |
James Smart | e8b6201 | 2007-08-02 11:10:09 -0400 | [diff] [blame] | 724 | } |
James Smart | 549e55c | 2007-08-02 11:09:51 -0400 | [diff] [blame] | 725 | vports[index++] = port_iterator; |
| 726 | } |
| 727 | spin_unlock_irq(&phba->hbalock); |
| 728 | return vports; |
| 729 | } |
| 730 | |
| 731 | void |
James Smart | 0937282 | 2008-01-11 01:52:54 -0500 | [diff] [blame] | 732 | lpfc_destroy_vport_work_array(struct lpfc_hba *phba, struct lpfc_vport **vports) |
James Smart | 549e55c | 2007-08-02 11:09:51 -0400 | [diff] [blame] | 733 | { |
| 734 | int i; |
| 735 | if (vports == NULL) |
| 736 | return; |
James Smart | 0937282 | 2008-01-11 01:52:54 -0500 | [diff] [blame] | 737 | for (i=0; vports[i] != NULL && i <= phba->max_vpi; i++) |
James Smart | 549e55c | 2007-08-02 11:09:51 -0400 | [diff] [blame] | 738 | scsi_host_put(lpfc_shost_from_vport(vports[i])); |
| 739 | kfree(vports); |
| 740 | } |
James Smart | ea2151b | 2008-09-07 11:52:10 -0400 | [diff] [blame] | 741 | |
| 742 | |
| 743 | /** |
| 744 | * lpfc_vport_reset_stat_data: Reset the statistical data for the vport. |
| 745 | * @vport: Pointer to vport object. |
| 746 | * |
| 747 | * This function resets the statistical data for the vport. This function |
| 748 | * is called with the host_lock held |
| 749 | **/ |
| 750 | void |
| 751 | lpfc_vport_reset_stat_data(struct lpfc_vport *vport) |
| 752 | { |
| 753 | struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; |
| 754 | |
| 755 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
| 756 | if (!NLP_CHK_NODE_ACT(ndlp)) |
| 757 | continue; |
| 758 | if (ndlp->lat_data) |
| 759 | memset(ndlp->lat_data, 0, LPFC_MAX_BUCKET_COUNT * |
| 760 | sizeof(struct lpfc_scsicmd_bkt)); |
| 761 | } |
| 762 | } |
| 763 | |
| 764 | |
| 765 | /** |
| 766 | * lpfc_alloc_bucket: Allocate data buffer required for collecting |
| 767 | * statistical data. |
| 768 | * @vport: Pointer to vport object. |
| 769 | * |
| 770 | * This function allocates data buffer required for all the FC |
| 771 | * nodes of the vport to collect statistical data. |
| 772 | **/ |
| 773 | void |
| 774 | lpfc_alloc_bucket(struct lpfc_vport *vport) |
| 775 | { |
| 776 | struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; |
| 777 | |
| 778 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
| 779 | if (!NLP_CHK_NODE_ACT(ndlp)) |
| 780 | continue; |
| 781 | |
| 782 | kfree(ndlp->lat_data); |
| 783 | ndlp->lat_data = NULL; |
| 784 | |
| 785 | if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { |
| 786 | ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, |
| 787 | sizeof(struct lpfc_scsicmd_bkt), |
| 788 | GFP_ATOMIC); |
| 789 | |
| 790 | if (!ndlp->lat_data) |
| 791 | lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, |
| 792 | "0287 lpfc_alloc_bucket failed to " |
| 793 | "allocate statistical data buffer DID " |
| 794 | "0x%x\n", ndlp->nlp_DID); |
| 795 | } |
| 796 | } |
| 797 | } |
| 798 | |
| 799 | /** |
| 800 | * lpfc_free_bucket: Free data buffer required for collecting |
| 801 | * statistical data. |
| 802 | * @vport: Pointer to vport object. |
| 803 | * |
| 804 | * Th function frees statistical data buffer of all the FC |
| 805 | * nodes of the vport. |
| 806 | **/ |
| 807 | void |
| 808 | lpfc_free_bucket(struct lpfc_vport *vport) |
| 809 | { |
| 810 | struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; |
| 811 | |
| 812 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
| 813 | if (!NLP_CHK_NODE_ACT(ndlp)) |
| 814 | continue; |
| 815 | |
| 816 | kfree(ndlp->lat_data); |
| 817 | ndlp->lat_data = NULL; |
| 818 | } |
| 819 | } |