Commit | Line | Data |
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dea3101e | 1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
d8e93df1 | 4 | * Copyright (C) 2004-2009 Emulex. All rights reserved. * |
c44ce173 | 5 | * EMULEX and SLI are trademarks of Emulex. * |
dea3101e | 6 | * www.emulex.com * |
c44ce173 | 7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
dea3101e | 8 | * * |
9 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
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. * | |
dea3101e | 20 | *******************************************************************/ |
09372820 | 21 | /* See Fibre Channel protocol T11 FC-LS for details */ |
dea3101e | 22 | #include <linux/blkdev.h> |
23 | #include <linux/pci.h> | |
5a0e3ad6 | 24 | #include <linux/slab.h> |
dea3101e | 25 | #include <linux/interrupt.h> |
26 | ||
91886523 | 27 | #include <scsi/scsi.h> |
dea3101e | 28 | #include <scsi/scsi_device.h> |
29 | #include <scsi/scsi_host.h> | |
30 | #include <scsi/scsi_transport_fc.h> | |
31 | ||
da0436e9 | 32 | #include "lpfc_hw4.h" |
dea3101e | 33 | #include "lpfc_hw.h" |
34 | #include "lpfc_sli.h" | |
da0436e9 | 35 | #include "lpfc_sli4.h" |
ea2151b4 | 36 | #include "lpfc_nl.h" |
dea3101e | 37 | #include "lpfc_disc.h" |
38 | #include "lpfc_scsi.h" | |
39 | #include "lpfc.h" | |
40 | #include "lpfc_logmsg.h" | |
41 | #include "lpfc_crtn.h" | |
92d7f7b0 | 42 | #include "lpfc_vport.h" |
858c9f6c | 43 | #include "lpfc_debugfs.h" |
dea3101e | 44 | |
45 | static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *, | |
46 | struct lpfc_iocbq *); | |
92d7f7b0 JS |
47 | static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *, |
48 | struct lpfc_iocbq *); | |
a6ababd2 AB |
49 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport); |
50 | static int lpfc_issue_els_fdisc(struct lpfc_vport *vport, | |
51 | struct lpfc_nodelist *ndlp, uint8_t retry); | |
52 | static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba, | |
53 | struct lpfc_iocbq *iocb); | |
92d7f7b0 | 54 | |
dea3101e | 55 | static int lpfc_max_els_tries = 3; |
56 | ||
e59058c4 | 57 | /** |
3621a710 | 58 | * lpfc_els_chk_latt - Check host link attention event for a vport |
e59058c4 JS |
59 | * @vport: pointer to a host virtual N_Port data structure. |
60 | * | |
61 | * This routine checks whether there is an outstanding host link | |
62 | * attention event during the discovery process with the @vport. It is done | |
63 | * by reading the HBA's Host Attention (HA) register. If there is any host | |
64 | * link attention events during this @vport's discovery process, the @vport | |
65 | * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall | |
66 | * be issued if the link state is not already in host link cleared state, | |
67 | * and a return code shall indicate whether the host link attention event | |
68 | * had happened. | |
69 | * | |
70 | * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport | |
71 | * state in LPFC_VPORT_READY, the request for checking host link attention | |
72 | * event will be ignored and a return code shall indicate no host link | |
73 | * attention event had happened. | |
74 | * | |
75 | * Return codes | |
76 | * 0 - no host link attention event happened | |
77 | * 1 - host link attention event happened | |
78 | **/ | |
858c9f6c | 79 | int |
2e0fef85 | 80 | lpfc_els_chk_latt(struct lpfc_vport *vport) |
dea3101e | 81 | { |
2e0fef85 JS |
82 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
83 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 84 | uint32_t ha_copy; |
dea3101e | 85 | |
2e0fef85 | 86 | if (vport->port_state >= LPFC_VPORT_READY || |
3772a991 JS |
87 | phba->link_state == LPFC_LINK_DOWN || |
88 | phba->sli_rev > LPFC_SLI_REV3) | |
dea3101e | 89 | return 0; |
90 | ||
91 | /* Read the HBA Host Attention Register */ | |
dea3101e | 92 | ha_copy = readl(phba->HAregaddr); |
dea3101e | 93 | |
94 | if (!(ha_copy & HA_LATT)) | |
95 | return 0; | |
96 | ||
97 | /* Pending Link Event during Discovery */ | |
e8b62011 JS |
98 | lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, |
99 | "0237 Pending Link Event during " | |
100 | "Discovery: State x%x\n", | |
101 | phba->pport->port_state); | |
dea3101e | 102 | |
103 | /* CLEAR_LA should re-enable link attention events and | |
104 | * we should then imediately take a LATT event. The | |
105 | * LATT processing should call lpfc_linkdown() which | |
106 | * will cleanup any left over in-progress discovery | |
107 | * events. | |
108 | */ | |
2e0fef85 JS |
109 | spin_lock_irq(shost->host_lock); |
110 | vport->fc_flag |= FC_ABORT_DISCOVERY; | |
111 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 112 | |
92d7f7b0 | 113 | if (phba->link_state != LPFC_CLEAR_LA) |
ed957684 | 114 | lpfc_issue_clear_la(phba, vport); |
dea3101e | 115 | |
c9f8735b | 116 | return 1; |
dea3101e | 117 | } |
118 | ||
e59058c4 | 119 | /** |
3621a710 | 120 | * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure |
e59058c4 JS |
121 | * @vport: pointer to a host virtual N_Port data structure. |
122 | * @expectRsp: flag indicating whether response is expected. | |
123 | * @cmdSize: size of the ELS command. | |
124 | * @retry: number of retries to the command IOCB when it fails. | |
125 | * @ndlp: pointer to a node-list data structure. | |
126 | * @did: destination identifier. | |
127 | * @elscmd: the ELS command code. | |
128 | * | |
129 | * This routine is used for allocating a lpfc-IOCB data structure from | |
130 | * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters | |
131 | * passed into the routine for discovery state machine to issue an Extended | |
132 | * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation | |
133 | * and preparation routine that is used by all the discovery state machine | |
134 | * routines and the ELS command-specific fields will be later set up by | |
135 | * the individual discovery machine routines after calling this routine | |
136 | * allocating and preparing a generic IOCB data structure. It fills in the | |
137 | * Buffer Descriptor Entries (BDEs), allocates buffers for both command | |
138 | * payload and response payload (if expected). The reference count on the | |
139 | * ndlp is incremented by 1 and the reference to the ndlp is put into | |
140 | * context1 of the IOCB data structure for this IOCB to hold the ndlp | |
141 | * reference for the command's callback function to access later. | |
142 | * | |
143 | * Return code | |
144 | * Pointer to the newly allocated/prepared els iocb data structure | |
145 | * NULL - when els iocb data structure allocation/preparation failed | |
146 | **/ | |
f1c3b0fc | 147 | struct lpfc_iocbq * |
2e0fef85 JS |
148 | lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp, |
149 | uint16_t cmdSize, uint8_t retry, | |
150 | struct lpfc_nodelist *ndlp, uint32_t did, | |
151 | uint32_t elscmd) | |
dea3101e | 152 | { |
2e0fef85 | 153 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 | 154 | struct lpfc_iocbq *elsiocb; |
dea3101e | 155 | struct lpfc_dmabuf *pcmd, *prsp, *pbuflist; |
156 | struct ulp_bde64 *bpl; | |
157 | IOCB_t *icmd; | |
158 | ||
dea3101e | 159 | |
2e0fef85 JS |
160 | if (!lpfc_is_link_up(phba)) |
161 | return NULL; | |
dea3101e | 162 | |
dea3101e | 163 | /* Allocate buffer for command iocb */ |
0bd4ca25 | 164 | elsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e | 165 | |
166 | if (elsiocb == NULL) | |
167 | return NULL; | |
e47c9093 | 168 | |
0c287589 JS |
169 | /* |
170 | * If this command is for fabric controller and HBA running | |
171 | * in FIP mode send FLOGI, FDISC and LOGO as FIP frames. | |
172 | */ | |
173 | if ((did == Fabric_DID) && | |
45ed1190 | 174 | (phba->hba_flag & HBA_FIP_SUPPORT) && |
0c287589 JS |
175 | ((elscmd == ELS_CMD_FLOGI) || |
176 | (elscmd == ELS_CMD_FDISC) || | |
177 | (elscmd == ELS_CMD_LOGO))) | |
c868595d JS |
178 | switch (elscmd) { |
179 | case ELS_CMD_FLOGI: | |
180 | elsiocb->iocb_flag |= ((ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT) | |
181 | & LPFC_FIP_ELS_ID_MASK); | |
182 | break; | |
183 | case ELS_CMD_FDISC: | |
184 | elsiocb->iocb_flag |= ((ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT) | |
185 | & LPFC_FIP_ELS_ID_MASK); | |
186 | break; | |
187 | case ELS_CMD_LOGO: | |
188 | elsiocb->iocb_flag |= ((ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT) | |
189 | & LPFC_FIP_ELS_ID_MASK); | |
190 | break; | |
191 | } | |
0c287589 | 192 | else |
c868595d | 193 | elsiocb->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK; |
0c287589 | 194 | |
dea3101e | 195 | icmd = &elsiocb->iocb; |
196 | ||
197 | /* fill in BDEs for command */ | |
198 | /* Allocate buffer for command payload */ | |
98c9ea5c JS |
199 | pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
200 | if (pcmd) | |
201 | pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys); | |
fa4066b6 JS |
202 | if (!pcmd || !pcmd->virt) |
203 | goto els_iocb_free_pcmb_exit; | |
dea3101e | 204 | |
205 | INIT_LIST_HEAD(&pcmd->list); | |
206 | ||
207 | /* Allocate buffer for response payload */ | |
208 | if (expectRsp) { | |
92d7f7b0 | 209 | prsp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
dea3101e | 210 | if (prsp) |
211 | prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, | |
212 | &prsp->phys); | |
fa4066b6 JS |
213 | if (!prsp || !prsp->virt) |
214 | goto els_iocb_free_prsp_exit; | |
dea3101e | 215 | INIT_LIST_HEAD(&prsp->list); |
e47c9093 | 216 | } else |
dea3101e | 217 | prsp = NULL; |
dea3101e | 218 | |
219 | /* Allocate buffer for Buffer ptr list */ | |
92d7f7b0 | 220 | pbuflist = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
dea3101e | 221 | if (pbuflist) |
ed957684 JS |
222 | pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI, |
223 | &pbuflist->phys); | |
fa4066b6 JS |
224 | if (!pbuflist || !pbuflist->virt) |
225 | goto els_iocb_free_pbuf_exit; | |
dea3101e | 226 | |
227 | INIT_LIST_HEAD(&pbuflist->list); | |
228 | ||
229 | icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys); | |
230 | icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys); | |
34b02dcd | 231 | icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
2e0fef85 | 232 | icmd->un.elsreq64.remoteID = did; /* DID */ |
dea3101e | 233 | if (expectRsp) { |
92d7f7b0 | 234 | icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); |
dea3101e | 235 | icmd->ulpCommand = CMD_ELS_REQUEST64_CR; |
2680eeaa | 236 | icmd->ulpTimeout = phba->fc_ratov * 2; |
dea3101e | 237 | } else { |
92d7f7b0 | 238 | icmd->un.elsreq64.bdl.bdeSize = sizeof(struct ulp_bde64); |
dea3101e | 239 | icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX; |
240 | } | |
dea3101e | 241 | icmd->ulpBdeCount = 1; |
242 | icmd->ulpLe = 1; | |
243 | icmd->ulpClass = CLASS3; | |
244 | ||
92d7f7b0 JS |
245 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
246 | icmd->un.elsreq64.myID = vport->fc_myDID; | |
247 | ||
248 | /* For ELS_REQUEST64_CR, use the VPI by default */ | |
da0436e9 | 249 | icmd->ulpContext = vport->vpi + phba->vpi_base; |
92d7f7b0 | 250 | icmd->ulpCt_h = 0; |
eada272d JS |
251 | /* The CT field must be 0=INVALID_RPI for the ECHO cmd */ |
252 | if (elscmd == ELS_CMD_ECHO) | |
253 | icmd->ulpCt_l = 0; /* context = invalid RPI */ | |
254 | else | |
255 | icmd->ulpCt_l = 1; /* context = VPI */ | |
92d7f7b0 JS |
256 | } |
257 | ||
dea3101e | 258 | bpl = (struct ulp_bde64 *) pbuflist->virt; |
259 | bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys)); | |
260 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys)); | |
261 | bpl->tus.f.bdeSize = cmdSize; | |
262 | bpl->tus.f.bdeFlags = 0; | |
263 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
264 | ||
265 | if (expectRsp) { | |
266 | bpl++; | |
267 | bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys)); | |
268 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys)); | |
269 | bpl->tus.f.bdeSize = FCELSSIZE; | |
34b02dcd | 270 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; |
dea3101e | 271 | bpl->tus.w = le32_to_cpu(bpl->tus.w); |
272 | } | |
273 | ||
fa4066b6 | 274 | /* prevent preparing iocb with NULL ndlp reference */ |
51ef4c26 | 275 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
fa4066b6 JS |
276 | if (!elsiocb->context1) |
277 | goto els_iocb_free_pbuf_exit; | |
329f9bc7 JS |
278 | elsiocb->context2 = pcmd; |
279 | elsiocb->context3 = pbuflist; | |
dea3101e | 280 | elsiocb->retry = retry; |
2e0fef85 | 281 | elsiocb->vport = vport; |
dea3101e | 282 | elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT; |
283 | ||
284 | if (prsp) { | |
285 | list_add(&prsp->list, &pcmd->list); | |
286 | } | |
dea3101e | 287 | if (expectRsp) { |
288 | /* Xmit ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
289 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
290 | "0116 Xmit ELS command x%x to remote " | |
291 | "NPORT x%x I/O tag: x%x, port state: x%x\n", | |
292 | elscmd, did, elsiocb->iotag, | |
293 | vport->port_state); | |
dea3101e | 294 | } else { |
295 | /* Xmit ELS response <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
296 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
297 | "0117 Xmit ELS response x%x to remote " | |
298 | "NPORT x%x I/O tag: x%x, size: x%x\n", | |
299 | elscmd, ndlp->nlp_DID, elsiocb->iotag, | |
300 | cmdSize); | |
dea3101e | 301 | } |
c9f8735b | 302 | return elsiocb; |
dea3101e | 303 | |
fa4066b6 | 304 | els_iocb_free_pbuf_exit: |
eaf15d5b JS |
305 | if (expectRsp) |
306 | lpfc_mbuf_free(phba, prsp->virt, prsp->phys); | |
fa4066b6 JS |
307 | kfree(pbuflist); |
308 | ||
309 | els_iocb_free_prsp_exit: | |
310 | lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); | |
311 | kfree(prsp); | |
312 | ||
313 | els_iocb_free_pcmb_exit: | |
314 | kfree(pcmd); | |
315 | lpfc_sli_release_iocbq(phba, elsiocb); | |
316 | return NULL; | |
317 | } | |
dea3101e | 318 | |
e59058c4 | 319 | /** |
3621a710 | 320 | * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport |
e59058c4 JS |
321 | * @vport: pointer to a host virtual N_Port data structure. |
322 | * | |
323 | * This routine issues a fabric registration login for a @vport. An | |
324 | * active ndlp node with Fabric_DID must already exist for this @vport. | |
325 | * The routine invokes two mailbox commands to carry out fabric registration | |
326 | * login through the HBA firmware: the first mailbox command requests the | |
327 | * HBA to perform link configuration for the @vport; and the second mailbox | |
328 | * command requests the HBA to perform the actual fabric registration login | |
329 | * with the @vport. | |
330 | * | |
331 | * Return code | |
332 | * 0 - successfully issued fabric registration login for @vport | |
333 | * -ENXIO -- failed to issue fabric registration login for @vport | |
334 | **/ | |
3772a991 | 335 | int |
92d7f7b0 | 336 | lpfc_issue_fabric_reglogin(struct lpfc_vport *vport) |
dea3101e | 337 | { |
2e0fef85 | 338 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 339 | LPFC_MBOXQ_t *mbox; |
14691150 | 340 | struct lpfc_dmabuf *mp; |
92d7f7b0 JS |
341 | struct lpfc_nodelist *ndlp; |
342 | struct serv_parm *sp; | |
dea3101e | 343 | int rc; |
98c9ea5c | 344 | int err = 0; |
dea3101e | 345 | |
92d7f7b0 JS |
346 | sp = &phba->fc_fabparam; |
347 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
e47c9093 | 348 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
98c9ea5c | 349 | err = 1; |
92d7f7b0 | 350 | goto fail; |
98c9ea5c | 351 | } |
92d7f7b0 JS |
352 | |
353 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
98c9ea5c JS |
354 | if (!mbox) { |
355 | err = 2; | |
92d7f7b0 | 356 | goto fail; |
98c9ea5c | 357 | } |
92d7f7b0 JS |
358 | |
359 | vport->port_state = LPFC_FABRIC_CFG_LINK; | |
360 | lpfc_config_link(phba, mbox); | |
361 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
362 | mbox->vport = vport; | |
363 | ||
0b727fea | 364 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
98c9ea5c JS |
365 | if (rc == MBX_NOT_FINISHED) { |
366 | err = 3; | |
92d7f7b0 | 367 | goto fail_free_mbox; |
98c9ea5c | 368 | } |
92d7f7b0 JS |
369 | |
370 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
98c9ea5c JS |
371 | if (!mbox) { |
372 | err = 4; | |
92d7f7b0 | 373 | goto fail; |
98c9ea5c | 374 | } |
3772a991 | 375 | rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox, 0); |
98c9ea5c JS |
376 | if (rc) { |
377 | err = 5; | |
92d7f7b0 | 378 | goto fail_free_mbox; |
98c9ea5c | 379 | } |
92d7f7b0 JS |
380 | |
381 | mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login; | |
382 | mbox->vport = vport; | |
e47c9093 JS |
383 | /* increment the reference count on ndlp to hold reference |
384 | * for the callback routine. | |
385 | */ | |
92d7f7b0 JS |
386 | mbox->context2 = lpfc_nlp_get(ndlp); |
387 | ||
0b727fea | 388 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
98c9ea5c JS |
389 | if (rc == MBX_NOT_FINISHED) { |
390 | err = 6; | |
92d7f7b0 | 391 | goto fail_issue_reg_login; |
98c9ea5c | 392 | } |
92d7f7b0 JS |
393 | |
394 | return 0; | |
395 | ||
396 | fail_issue_reg_login: | |
e47c9093 JS |
397 | /* decrement the reference count on ndlp just incremented |
398 | * for the failed mbox command. | |
399 | */ | |
92d7f7b0 JS |
400 | lpfc_nlp_put(ndlp); |
401 | mp = (struct lpfc_dmabuf *) mbox->context1; | |
402 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
403 | kfree(mp); | |
404 | fail_free_mbox: | |
405 | mempool_free(mbox, phba->mbox_mem_pool); | |
406 | ||
407 | fail: | |
408 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 | 409 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
98c9ea5c | 410 | "0249 Cannot issue Register Fabric login: Err %d\n", err); |
92d7f7b0 JS |
411 | return -ENXIO; |
412 | } | |
413 | ||
6fb120a7 JS |
414 | /** |
415 | * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login | |
416 | * @vport: pointer to a host virtual N_Port data structure. | |
417 | * | |
418 | * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for | |
419 | * the @vport. This mailbox command is necessary for FCoE only. | |
420 | * | |
421 | * Return code | |
422 | * 0 - successfully issued REG_VFI for @vport | |
423 | * A failure code otherwise. | |
424 | **/ | |
425 | static int | |
426 | lpfc_issue_reg_vfi(struct lpfc_vport *vport) | |
427 | { | |
428 | struct lpfc_hba *phba = vport->phba; | |
429 | LPFC_MBOXQ_t *mboxq; | |
430 | struct lpfc_nodelist *ndlp; | |
431 | struct serv_parm *sp; | |
432 | struct lpfc_dmabuf *dmabuf; | |
433 | int rc = 0; | |
434 | ||
435 | sp = &phba->fc_fabparam; | |
436 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
437 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { | |
438 | rc = -ENODEV; | |
439 | goto fail; | |
440 | } | |
441 | ||
442 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
443 | if (!dmabuf) { | |
444 | rc = -ENOMEM; | |
445 | goto fail; | |
446 | } | |
447 | dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys); | |
448 | if (!dmabuf->virt) { | |
449 | rc = -ENOMEM; | |
450 | goto fail_free_dmabuf; | |
451 | } | |
452 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
453 | if (!mboxq) { | |
454 | rc = -ENOMEM; | |
455 | goto fail_free_coherent; | |
456 | } | |
457 | vport->port_state = LPFC_FABRIC_CFG_LINK; | |
458 | memcpy(dmabuf->virt, &phba->fc_fabparam, sizeof(vport->fc_sparam)); | |
459 | lpfc_reg_vfi(mboxq, vport, dmabuf->phys); | |
460 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi; | |
461 | mboxq->vport = vport; | |
462 | mboxq->context1 = dmabuf; | |
463 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
464 | if (rc == MBX_NOT_FINISHED) { | |
465 | rc = -ENXIO; | |
466 | goto fail_free_mbox; | |
467 | } | |
468 | return 0; | |
469 | ||
470 | fail_free_mbox: | |
471 | mempool_free(mboxq, phba->mbox_mem_pool); | |
472 | fail_free_coherent: | |
473 | lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); | |
474 | fail_free_dmabuf: | |
475 | kfree(dmabuf); | |
476 | fail: | |
477 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
478 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
479 | "0289 Issue Register VFI failed: Err %d\n", rc); | |
480 | return rc; | |
481 | } | |
482 | ||
e59058c4 | 483 | /** |
3621a710 | 484 | * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port |
e59058c4 JS |
485 | * @vport: pointer to a host virtual N_Port data structure. |
486 | * @ndlp: pointer to a node-list data structure. | |
487 | * @sp: pointer to service parameter data structure. | |
488 | * @irsp: pointer to the IOCB within the lpfc response IOCB. | |
489 | * | |
490 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
491 | * function to handle the completion of a Fabric Login (FLOGI) into a fabric | |
492 | * port in a fabric topology. It properly sets up the parameters to the @ndlp | |
493 | * from the IOCB response. It also check the newly assigned N_Port ID to the | |
494 | * @vport against the previously assigned N_Port ID. If it is different from | |
495 | * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine | |
496 | * is invoked on all the remaining nodes with the @vport to unregister the | |
497 | * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin() | |
498 | * is invoked to register login to the fabric. | |
499 | * | |
500 | * Return code | |
501 | * 0 - Success (currently, always return 0) | |
502 | **/ | |
92d7f7b0 JS |
503 | static int |
504 | lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, | |
505 | struct serv_parm *sp, IOCB_t *irsp) | |
506 | { | |
507 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
508 | struct lpfc_hba *phba = vport->phba; | |
509 | struct lpfc_nodelist *np; | |
510 | struct lpfc_nodelist *next_np; | |
511 | ||
2e0fef85 JS |
512 | spin_lock_irq(shost->host_lock); |
513 | vport->fc_flag |= FC_FABRIC; | |
514 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 515 | |
516 | phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov); | |
517 | if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ | |
518 | phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000; | |
519 | ||
12265f68 | 520 | phba->fc_edtovResol = sp->cmn.edtovResolution; |
dea3101e | 521 | phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000; |
522 | ||
523 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
2e0fef85 JS |
524 | spin_lock_irq(shost->host_lock); |
525 | vport->fc_flag |= FC_PUBLIC_LOOP; | |
526 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 527 | } |
528 | ||
2e0fef85 | 529 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
dea3101e | 530 | memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name)); |
92d7f7b0 | 531 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name)); |
dea3101e | 532 | ndlp->nlp_class_sup = 0; |
533 | if (sp->cls1.classValid) | |
534 | ndlp->nlp_class_sup |= FC_COS_CLASS1; | |
535 | if (sp->cls2.classValid) | |
536 | ndlp->nlp_class_sup |= FC_COS_CLASS2; | |
537 | if (sp->cls3.classValid) | |
538 | ndlp->nlp_class_sup |= FC_COS_CLASS3; | |
539 | if (sp->cls4.classValid) | |
540 | ndlp->nlp_class_sup |= FC_COS_CLASS4; | |
541 | ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | | |
542 | sp->cmn.bbRcvSizeLsb; | |
543 | memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); | |
544 | ||
92d7f7b0 JS |
545 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
546 | if (sp->cmn.response_multiple_NPort) { | |
e8b62011 JS |
547 | lpfc_printf_vlog(vport, KERN_WARNING, |
548 | LOG_ELS | LOG_VPORT, | |
549 | "1816 FLOGI NPIV supported, " | |
550 | "response data 0x%x\n", | |
551 | sp->cmn.response_multiple_NPort); | |
92d7f7b0 | 552 | phba->link_flag |= LS_NPIV_FAB_SUPPORTED; |
92d7f7b0 JS |
553 | } else { |
554 | /* Because we asked f/w for NPIV it still expects us | |
e8b62011 JS |
555 | to call reg_vnpid atleast for the physcial host */ |
556 | lpfc_printf_vlog(vport, KERN_WARNING, | |
557 | LOG_ELS | LOG_VPORT, | |
558 | "1817 Fabric does not support NPIV " | |
559 | "- configuring single port mode.\n"); | |
92d7f7b0 JS |
560 | phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; |
561 | } | |
562 | } | |
dea3101e | 563 | |
92d7f7b0 JS |
564 | if ((vport->fc_prevDID != vport->fc_myDID) && |
565 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
dea3101e | 566 | |
92d7f7b0 JS |
567 | /* If our NportID changed, we need to ensure all |
568 | * remaining NPORTs get unreg_login'ed. | |
569 | */ | |
570 | list_for_each_entry_safe(np, next_np, | |
571 | &vport->fc_nodes, nlp_listp) { | |
d7c255b2 | 572 | if (!NLP_CHK_NODE_ACT(np)) |
e47c9093 | 573 | continue; |
92d7f7b0 JS |
574 | if ((np->nlp_state != NLP_STE_NPR_NODE) || |
575 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
576 | continue; | |
577 | spin_lock_irq(shost->host_lock); | |
578 | np->nlp_flag &= ~NLP_NPR_ADISC; | |
579 | spin_unlock_irq(shost->host_lock); | |
580 | lpfc_unreg_rpi(vport, np); | |
581 | } | |
78730cfe | 582 | lpfc_cleanup_pending_mbox(vport); |
92d7f7b0 JS |
583 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
584 | lpfc_mbx_unreg_vpi(vport); | |
09372820 | 585 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 586 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
09372820 | 587 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 | 588 | } |
ecfd03c6 JS |
589 | /* |
590 | * If VPI is unreged, driver need to do INIT_VPI | |
591 | * before re-registering | |
592 | */ | |
593 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
594 | spin_lock_irq(shost->host_lock); | |
595 | vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; | |
596 | spin_unlock_irq(shost->host_lock); | |
597 | } | |
38b92ef8 JS |
598 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
599 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
600 | /* | |
601 | * Driver needs to re-reg VPI in order for f/w | |
602 | * to update the MAC address. | |
603 | */ | |
604 | lpfc_register_new_vport(phba, vport, ndlp); | |
605 | return 0; | |
92d7f7b0 | 606 | } |
dea3101e | 607 | |
6fb120a7 JS |
608 | if (phba->sli_rev < LPFC_SLI_REV4) { |
609 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); | |
610 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED && | |
611 | vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) | |
612 | lpfc_register_new_vport(phba, vport, ndlp); | |
613 | else | |
614 | lpfc_issue_fabric_reglogin(vport); | |
615 | } else { | |
616 | ndlp->nlp_type |= NLP_FABRIC; | |
617 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); | |
695a814e JS |
618 | if ((!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) && |
619 | (vport->vpi_state & LPFC_VPI_REGISTERED)) { | |
6fb120a7 JS |
620 | lpfc_start_fdiscs(phba); |
621 | lpfc_do_scr_ns_plogi(phba, vport); | |
695a814e | 622 | } else if (vport->fc_flag & FC_VFI_REGISTERED) |
ecfd03c6 | 623 | lpfc_issue_init_vpi(vport); |
695a814e | 624 | else |
6fb120a7 | 625 | lpfc_issue_reg_vfi(vport); |
92d7f7b0 | 626 | } |
dea3101e | 627 | return 0; |
dea3101e | 628 | } |
e59058c4 | 629 | /** |
3621a710 | 630 | * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port |
e59058c4 JS |
631 | * @vport: pointer to a host virtual N_Port data structure. |
632 | * @ndlp: pointer to a node-list data structure. | |
633 | * @sp: pointer to service parameter data structure. | |
634 | * | |
635 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
636 | * function to handle the completion of a Fabric Login (FLOGI) into an N_Port | |
637 | * in a point-to-point topology. First, the @vport's N_Port Name is compared | |
638 | * with the received N_Port Name: if the @vport's N_Port Name is greater than | |
639 | * the received N_Port Name lexicographically, this node shall assign local | |
640 | * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and | |
641 | * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise, | |
642 | * this node shall just wait for the remote node to issue PLOGI and assign | |
643 | * N_Port IDs. | |
644 | * | |
645 | * Return code | |
646 | * 0 - Success | |
647 | * -ENXIO - Fail | |
648 | **/ | |
dea3101e | 649 | static int |
2e0fef85 JS |
650 | lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
651 | struct serv_parm *sp) | |
dea3101e | 652 | { |
2e0fef85 JS |
653 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
654 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 655 | LPFC_MBOXQ_t *mbox; |
656 | int rc; | |
657 | ||
2e0fef85 JS |
658 | spin_lock_irq(shost->host_lock); |
659 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
660 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 661 | |
662 | phba->fc_edtov = FF_DEF_EDTOV; | |
663 | phba->fc_ratov = FF_DEF_RATOV; | |
2e0fef85 | 664 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 665 | sizeof(vport->fc_portname)); |
dea3101e | 666 | if (rc >= 0) { |
667 | /* This side will initiate the PLOGI */ | |
2e0fef85 JS |
668 | spin_lock_irq(shost->host_lock); |
669 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
670 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 671 | |
672 | /* | |
673 | * N_Port ID cannot be 0, set our to LocalID the other | |
674 | * side will be RemoteID. | |
675 | */ | |
676 | ||
677 | /* not equal */ | |
678 | if (rc) | |
2e0fef85 | 679 | vport->fc_myDID = PT2PT_LocalID; |
dea3101e | 680 | |
681 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
682 | if (!mbox) | |
683 | goto fail; | |
684 | ||
685 | lpfc_config_link(phba, mbox); | |
686 | ||
687 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
ed957684 | 688 | mbox->vport = vport; |
0b727fea | 689 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
dea3101e | 690 | if (rc == MBX_NOT_FINISHED) { |
691 | mempool_free(mbox, phba->mbox_mem_pool); | |
692 | goto fail; | |
693 | } | |
e47c9093 JS |
694 | /* Decrement ndlp reference count indicating that ndlp can be |
695 | * safely released when other references to it are done. | |
696 | */ | |
329f9bc7 | 697 | lpfc_nlp_put(ndlp); |
dea3101e | 698 | |
2e0fef85 | 699 | ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID); |
dea3101e | 700 | if (!ndlp) { |
701 | /* | |
702 | * Cannot find existing Fabric ndlp, so allocate a | |
703 | * new one | |
704 | */ | |
705 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
706 | if (!ndlp) | |
707 | goto fail; | |
2e0fef85 | 708 | lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID); |
e47c9093 JS |
709 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
710 | ndlp = lpfc_enable_node(vport, ndlp, | |
711 | NLP_STE_UNUSED_NODE); | |
712 | if(!ndlp) | |
713 | goto fail; | |
dea3101e | 714 | } |
715 | ||
716 | memcpy(&ndlp->nlp_portname, &sp->portName, | |
2e0fef85 | 717 | sizeof(struct lpfc_name)); |
dea3101e | 718 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, |
2e0fef85 | 719 | sizeof(struct lpfc_name)); |
e47c9093 | 720 | /* Set state will put ndlp onto node list if not already done */ |
2e0fef85 JS |
721 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
722 | spin_lock_irq(shost->host_lock); | |
dea3101e | 723 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 724 | spin_unlock_irq(shost->host_lock); |
e47c9093 JS |
725 | } else |
726 | /* This side will wait for the PLOGI, decrement ndlp reference | |
727 | * count indicating that ndlp can be released when other | |
728 | * references to it are done. | |
729 | */ | |
329f9bc7 | 730 | lpfc_nlp_put(ndlp); |
dea3101e | 731 | |
09372820 JS |
732 | /* If we are pt2pt with another NPort, force NPIV off! */ |
733 | phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; | |
734 | ||
2e0fef85 JS |
735 | spin_lock_irq(shost->host_lock); |
736 | vport->fc_flag |= FC_PT2PT; | |
737 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 738 | |
739 | /* Start discovery - this should just do CLEAR_LA */ | |
2e0fef85 | 740 | lpfc_disc_start(vport); |
dea3101e | 741 | return 0; |
92d7f7b0 | 742 | fail: |
dea3101e | 743 | return -ENXIO; |
744 | } | |
745 | ||
e59058c4 | 746 | /** |
3621a710 | 747 | * lpfc_cmpl_els_flogi - Completion callback function for flogi |
e59058c4 JS |
748 | * @phba: pointer to lpfc hba data structure. |
749 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
750 | * @rspiocb: pointer to lpfc response iocb data structure. | |
751 | * | |
752 | * This routine is the top-level completion callback function for issuing | |
753 | * a Fabric Login (FLOGI) command. If the response IOCB reported error, | |
754 | * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If | |
755 | * retry has been made (either immediately or delayed with lpfc_els_retry() | |
756 | * returning 1), the command IOCB will be released and function returned. | |
757 | * If the retry attempt has been given up (possibly reach the maximum | |
758 | * number of retries), one additional decrement of ndlp reference shall be | |
759 | * invoked before going out after releasing the command IOCB. This will | |
760 | * actually release the remote node (Note, lpfc_els_free_iocb() will also | |
761 | * invoke one decrement of ndlp reference count). If no error reported in | |
762 | * the IOCB status, the command Port ID field is used to determine whether | |
763 | * this is a point-to-point topology or a fabric topology: if the Port ID | |
764 | * field is assigned, it is a fabric topology; otherwise, it is a | |
765 | * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or | |
766 | * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the | |
767 | * specific topology completion conditions. | |
768 | **/ | |
dea3101e | 769 | static void |
329f9bc7 JS |
770 | lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
771 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 772 | { |
2e0fef85 JS |
773 | struct lpfc_vport *vport = cmdiocb->vport; |
774 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 775 | IOCB_t *irsp = &rspiocb->iocb; |
776 | struct lpfc_nodelist *ndlp = cmdiocb->context1; | |
777 | struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp; | |
778 | struct serv_parm *sp; | |
0c9ab6f5 | 779 | uint16_t fcf_index; |
dea3101e | 780 | int rc; |
781 | ||
782 | /* Check to see if link went down during discovery */ | |
2e0fef85 | 783 | if (lpfc_els_chk_latt(vport)) { |
fa4066b6 JS |
784 | /* One additional decrement on node reference count to |
785 | * trigger the release of the node | |
786 | */ | |
329f9bc7 | 787 | lpfc_nlp_put(ndlp); |
dea3101e | 788 | goto out; |
789 | } | |
790 | ||
858c9f6c JS |
791 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
792 | "FLOGI cmpl: status:x%x/x%x state:x%x", | |
793 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
794 | vport->port_state); | |
795 | ||
dea3101e | 796 | if (irsp->ulpStatus) { |
0c9ab6f5 JS |
797 | /* |
798 | * In case of FIP mode, perform round robin FCF failover | |
799 | * due to new FCF discovery | |
800 | */ | |
801 | if ((phba->hba_flag & HBA_FIP_SUPPORT) && | |
dbb6b3ab JS |
802 | (phba->fcf.fcf_flag & FCF_DISCOVERY) && |
803 | (irsp->ulpStatus != IOSTAT_LOCAL_REJECT) && | |
804 | (irsp->un.ulpWord[4] != IOERR_SLI_ABORTED)) { | |
0c9ab6f5 JS |
805 | lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, |
806 | "2611 FLOGI failed on registered " | |
38b92ef8 JS |
807 | "FCF record fcf_index(%d), status: " |
808 | "x%x/x%x, tmo:x%x, trying to perform " | |
809 | "round robin failover\n", | |
810 | phba->fcf.current_rec.fcf_indx, | |
811 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
812 | irsp->ulpTimeout); | |
0c9ab6f5 JS |
813 | fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); |
814 | if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { | |
815 | /* | |
816 | * Exhausted the eligible FCF record list, | |
817 | * fail through to retry FLOGI on current | |
818 | * FCF record. | |
819 | */ | |
820 | lpfc_printf_log(phba, KERN_WARNING, | |
821 | LOG_FIP | LOG_ELS, | |
3804dc84 JS |
822 | "2760 Completed one round " |
823 | "of FLOGI FCF round robin " | |
824 | "failover list, retry FLOGI " | |
825 | "on currently registered " | |
826 | "FCF index:%d\n", | |
0c9ab6f5 | 827 | phba->fcf.current_rec.fcf_indx); |
0c9ab6f5 | 828 | } else { |
3804dc84 JS |
829 | lpfc_printf_log(phba, KERN_INFO, |
830 | LOG_FIP | LOG_ELS, | |
831 | "2794 FLOGI FCF round robin " | |
832 | "failover to FCF index x%x\n", | |
833 | fcf_index); | |
0c9ab6f5 JS |
834 | rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, |
835 | fcf_index); | |
3804dc84 | 836 | if (rc) |
0c9ab6f5 JS |
837 | lpfc_printf_log(phba, KERN_WARNING, |
838 | LOG_FIP | LOG_ELS, | |
839 | "2761 FLOGI round " | |
840 | "robin FCF failover " | |
841 | "read FCF failed " | |
842 | "rc:x%x, fcf_index:" | |
843 | "%d\n", rc, | |
844 | phba->fcf.current_rec.fcf_indx); | |
3804dc84 | 845 | else |
0c9ab6f5 JS |
846 | goto out; |
847 | } | |
848 | } | |
849 | ||
38b92ef8 JS |
850 | /* FLOGI failure */ |
851 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
852 | "2858 FLOGI failure Status:x%x/x%x TMO:x%x\n", | |
853 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
854 | irsp->ulpTimeout); | |
855 | ||
dea3101e | 856 | /* Check for retry */ |
2e0fef85 | 857 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e | 858 | goto out; |
2e0fef85 | 859 | |
dea3101e | 860 | /* FLOGI failed, so there is no fabric */ |
2e0fef85 JS |
861 | spin_lock_irq(shost->host_lock); |
862 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
863 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 864 | |
329f9bc7 | 865 | /* If private loop, then allow max outstanding els to be |
dea3101e | 866 | * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no |
867 | * alpa map would take too long otherwise. | |
868 | */ | |
869 | if (phba->alpa_map[0] == 0) { | |
3de2a653 | 870 | vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS; |
dea3101e | 871 | } |
872 | ||
873 | /* FLOGI failure */ | |
e40a02c1 JS |
874 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
875 | "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n", | |
e8b62011 JS |
876 | irsp->ulpStatus, irsp->un.ulpWord[4], |
877 | irsp->ulpTimeout); | |
dea3101e | 878 | goto flogifail; |
879 | } | |
695a814e JS |
880 | spin_lock_irq(shost->host_lock); |
881 | vport->fc_flag &= ~FC_VPORT_CVL_RCVD; | |
4b40c59e | 882 | vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; |
695a814e | 883 | spin_unlock_irq(shost->host_lock); |
dea3101e | 884 | |
885 | /* | |
886 | * The FLogI succeeded. Sync the data for the CPU before | |
887 | * accessing it. | |
888 | */ | |
889 | prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); | |
890 | ||
891 | sp = prsp->virt + sizeof(uint32_t); | |
892 | ||
893 | /* FLOGI completes successfully */ | |
e8b62011 | 894 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
af901ca1 | 895 | "0101 FLOGI completes successfully " |
e8b62011 JS |
896 | "Data: x%x x%x x%x x%x\n", |
897 | irsp->un.ulpWord[4], sp->cmn.e_d_tov, | |
898 | sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution); | |
dea3101e | 899 | |
2e0fef85 | 900 | if (vport->port_state == LPFC_FLOGI) { |
dea3101e | 901 | /* |
902 | * If Common Service Parameters indicate Nport | |
903 | * we are point to point, if Fport we are Fabric. | |
904 | */ | |
905 | if (sp->cmn.fPort) | |
2e0fef85 | 906 | rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp); |
dbb6b3ab | 907 | else if (!(phba->hba_flag & HBA_FCOE_SUPPORT)) |
2e0fef85 | 908 | rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp); |
dbb6b3ab JS |
909 | else { |
910 | lpfc_printf_vlog(vport, KERN_ERR, | |
911 | LOG_FIP | LOG_ELS, | |
912 | "2831 FLOGI response with cleared Fabric " | |
913 | "bit fcf_index 0x%x " | |
914 | "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x " | |
915 | "Fabric Name " | |
916 | "%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
917 | phba->fcf.current_rec.fcf_indx, | |
918 | phba->fcf.current_rec.switch_name[0], | |
919 | phba->fcf.current_rec.switch_name[1], | |
920 | phba->fcf.current_rec.switch_name[2], | |
921 | phba->fcf.current_rec.switch_name[3], | |
922 | phba->fcf.current_rec.switch_name[4], | |
923 | phba->fcf.current_rec.switch_name[5], | |
924 | phba->fcf.current_rec.switch_name[6], | |
925 | phba->fcf.current_rec.switch_name[7], | |
926 | phba->fcf.current_rec.fabric_name[0], | |
927 | phba->fcf.current_rec.fabric_name[1], | |
928 | phba->fcf.current_rec.fabric_name[2], | |
929 | phba->fcf.current_rec.fabric_name[3], | |
930 | phba->fcf.current_rec.fabric_name[4], | |
931 | phba->fcf.current_rec.fabric_name[5], | |
932 | phba->fcf.current_rec.fabric_name[6], | |
933 | phba->fcf.current_rec.fabric_name[7]); | |
934 | lpfc_nlp_put(ndlp); | |
935 | spin_lock_irq(&phba->hbalock); | |
936 | phba->fcf.fcf_flag &= ~FCF_DISCOVERY; | |
937 | spin_unlock_irq(&phba->hbalock); | |
938 | goto out; | |
939 | } | |
0c9ab6f5 JS |
940 | if (!rc) { |
941 | /* Mark the FCF discovery process done */ | |
999d813f JS |
942 | if (phba->hba_flag & HBA_FIP_SUPPORT) |
943 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP | | |
944 | LOG_ELS, | |
945 | "2769 FLOGI successful on FCF " | |
946 | "record: current_fcf_index:" | |
947 | "x%x, terminate FCF round " | |
948 | "robin failover process\n", | |
949 | phba->fcf.current_rec.fcf_indx); | |
0c9ab6f5 JS |
950 | spin_lock_irq(&phba->hbalock); |
951 | phba->fcf.fcf_flag &= ~FCF_DISCOVERY; | |
952 | spin_unlock_irq(&phba->hbalock); | |
dea3101e | 953 | goto out; |
0c9ab6f5 | 954 | } |
dea3101e | 955 | } |
956 | ||
957 | flogifail: | |
329f9bc7 | 958 | lpfc_nlp_put(ndlp); |
dea3101e | 959 | |
858c9f6c | 960 | if (!lpfc_error_lost_link(irsp)) { |
dea3101e | 961 | /* FLOGI failed, so just use loop map to make discovery list */ |
2e0fef85 | 962 | lpfc_disc_list_loopmap(vport); |
dea3101e | 963 | |
964 | /* Start discovery */ | |
2e0fef85 | 965 | lpfc_disc_start(vport); |
87af33fe JS |
966 | } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || |
967 | ((irsp->un.ulpWord[4] != IOERR_SLI_ABORTED) && | |
968 | (irsp->un.ulpWord[4] != IOERR_SLI_DOWN))) && | |
969 | (phba->link_state != LPFC_CLEAR_LA)) { | |
970 | /* If FLOGI failed enable link interrupt. */ | |
971 | lpfc_issue_clear_la(phba, vport); | |
dea3101e | 972 | } |
dea3101e | 973 | out: |
974 | lpfc_els_free_iocb(phba, cmdiocb); | |
975 | } | |
976 | ||
e59058c4 | 977 | /** |
3621a710 | 978 | * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport |
e59058c4 JS |
979 | * @vport: pointer to a host virtual N_Port data structure. |
980 | * @ndlp: pointer to a node-list data structure. | |
981 | * @retry: number of retries to the command IOCB. | |
982 | * | |
983 | * This routine issues a Fabric Login (FLOGI) Request ELS command | |
984 | * for a @vport. The initiator service parameters are put into the payload | |
985 | * of the FLOGI Request IOCB and the top-level callback function pointer | |
986 | * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback | |
987 | * function field. The lpfc_issue_fabric_iocb routine is invoked to send | |
988 | * out FLOGI ELS command with one outstanding fabric IOCB at a time. | |
989 | * | |
990 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
991 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
992 | * will be stored into the context1 field of the IOCB for the completion | |
993 | * callback function to the FLOGI ELS command. | |
994 | * | |
995 | * Return code | |
996 | * 0 - successfully issued flogi iocb for @vport | |
997 | * 1 - failed to issue flogi iocb for @vport | |
998 | **/ | |
dea3101e | 999 | static int |
2e0fef85 | 1000 | lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e | 1001 | uint8_t retry) |
1002 | { | |
2e0fef85 | 1003 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 1004 | struct serv_parm *sp; |
1005 | IOCB_t *icmd; | |
1006 | struct lpfc_iocbq *elsiocb; | |
1007 | struct lpfc_sli_ring *pring; | |
1008 | uint8_t *pcmd; | |
1009 | uint16_t cmdsize; | |
1010 | uint32_t tmo; | |
1011 | int rc; | |
1012 | ||
1013 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
1014 | ||
92d7f7b0 | 1015 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
2e0fef85 JS |
1016 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1017 | ndlp->nlp_DID, ELS_CMD_FLOGI); | |
92d7f7b0 | 1018 | |
488d1469 | 1019 | if (!elsiocb) |
c9f8735b | 1020 | return 1; |
dea3101e | 1021 | |
1022 | icmd = &elsiocb->iocb; | |
1023 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1024 | ||
1025 | /* For FLOGI request, remainder of payload is service parameters */ | |
1026 | *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI; | |
92d7f7b0 JS |
1027 | pcmd += sizeof(uint32_t); |
1028 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e | 1029 | sp = (struct serv_parm *) pcmd; |
1030 | ||
1031 | /* Setup CSPs accordingly for Fabric */ | |
1032 | sp->cmn.e_d_tov = 0; | |
1033 | sp->cmn.w2.r_a_tov = 0; | |
1034 | sp->cls1.classValid = 0; | |
1035 | sp->cls2.seqDelivery = 1; | |
1036 | sp->cls3.seqDelivery = 1; | |
1037 | if (sp->cmn.fcphLow < FC_PH3) | |
1038 | sp->cmn.fcphLow = FC_PH3; | |
1039 | if (sp->cmn.fcphHigh < FC_PH3) | |
1040 | sp->cmn.fcphHigh = FC_PH3; | |
1041 | ||
6fb120a7 JS |
1042 | if (phba->sli_rev == LPFC_SLI_REV4) { |
1043 | elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1); | |
1044 | elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1); | |
1045 | /* FLOGI needs to be 3 for WQE FCFI */ | |
1046 | /* Set the fcfi to the fcfi we registered with */ | |
1047 | elsiocb->iocb.ulpContext = phba->fcf.fcfi; | |
1048 | } else if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { | |
92d7f7b0 | 1049 | sp->cmn.request_multiple_Nport = 1; |
92d7f7b0 JS |
1050 | /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */ |
1051 | icmd->ulpCt_h = 1; | |
1052 | icmd->ulpCt_l = 0; | |
1053 | } | |
1054 | ||
858c9f6c JS |
1055 | if (phba->fc_topology != TOPOLOGY_LOOP) { |
1056 | icmd->un.elsreq64.myID = 0; | |
1057 | icmd->un.elsreq64.fl = 1; | |
1058 | } | |
1059 | ||
dea3101e | 1060 | tmo = phba->fc_ratov; |
1061 | phba->fc_ratov = LPFC_DISC_FLOGI_TMO; | |
2e0fef85 | 1062 | lpfc_set_disctmo(vport); |
dea3101e | 1063 | phba->fc_ratov = tmo; |
1064 | ||
1065 | phba->fc_stat.elsXmitFLOGI++; | |
1066 | elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi; | |
858c9f6c JS |
1067 | |
1068 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
1069 | "Issue FLOGI: opt:x%x", | |
1070 | phba->sli3_options, 0, 0); | |
1071 | ||
92d7f7b0 | 1072 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
dea3101e | 1073 | if (rc == IOCB_ERROR) { |
1074 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 1075 | return 1; |
dea3101e | 1076 | } |
c9f8735b | 1077 | return 0; |
dea3101e | 1078 | } |
1079 | ||
e59058c4 | 1080 | /** |
3621a710 | 1081 | * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs |
e59058c4 JS |
1082 | * @phba: pointer to lpfc hba data structure. |
1083 | * | |
1084 | * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs | |
1085 | * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq | |
1086 | * list and issues an abort IOCB commond on each outstanding IOCB that | |
1087 | * contains a active Fabric_DID ndlp. Note that this function is to issue | |
1088 | * the abort IOCB command on all the outstanding IOCBs, thus when this | |
1089 | * function returns, it does not guarantee all the IOCBs are actually aborted. | |
1090 | * | |
1091 | * Return code | |
3ad2f3fb | 1092 | * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0) |
e59058c4 | 1093 | **/ |
dea3101e | 1094 | int |
2e0fef85 | 1095 | lpfc_els_abort_flogi(struct lpfc_hba *phba) |
dea3101e | 1096 | { |
1097 | struct lpfc_sli_ring *pring; | |
1098 | struct lpfc_iocbq *iocb, *next_iocb; | |
1099 | struct lpfc_nodelist *ndlp; | |
1100 | IOCB_t *icmd; | |
1101 | ||
1102 | /* Abort outstanding I/O on NPort <nlp_DID> */ | |
1103 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
e8b62011 JS |
1104 | "0201 Abort outstanding I/O on NPort x%x\n", |
1105 | Fabric_DID); | |
dea3101e | 1106 | |
1107 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
1108 | ||
1109 | /* | |
1110 | * Check the txcmplq for an iocb that matches the nport the driver is | |
1111 | * searching for. | |
1112 | */ | |
2e0fef85 | 1113 | spin_lock_irq(&phba->hbalock); |
dea3101e | 1114 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { |
1115 | icmd = &iocb->iocb; | |
2e0fef85 JS |
1116 | if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR && |
1117 | icmd->un.elsreq64.bdl.ulpIoTag32) { | |
dea3101e | 1118 | ndlp = (struct lpfc_nodelist *)(iocb->context1); |
58da1ffb JS |
1119 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
1120 | (ndlp->nlp_DID == Fabric_DID)) | |
07951076 | 1121 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); |
dea3101e | 1122 | } |
1123 | } | |
2e0fef85 | 1124 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 1125 | |
1126 | return 0; | |
1127 | } | |
1128 | ||
e59058c4 | 1129 | /** |
3621a710 | 1130 | * lpfc_initial_flogi - Issue an initial fabric login for a vport |
e59058c4 JS |
1131 | * @vport: pointer to a host virtual N_Port data structure. |
1132 | * | |
1133 | * This routine issues an initial Fabric Login (FLOGI) for the @vport | |
1134 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
1135 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
1136 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
1137 | * it will just be enabled and made active. The lpfc_issue_els_flogi() routine | |
1138 | * is then invoked with the @vport and the ndlp to perform the FLOGI for the | |
1139 | * @vport. | |
1140 | * | |
1141 | * Return code | |
1142 | * 0 - failed to issue initial flogi for @vport | |
1143 | * 1 - successfully issued initial flogi for @vport | |
1144 | **/ | |
dea3101e | 1145 | int |
2e0fef85 | 1146 | lpfc_initial_flogi(struct lpfc_vport *vport) |
dea3101e | 1147 | { |
2e0fef85 | 1148 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 1149 | struct lpfc_nodelist *ndlp; |
1150 | ||
98c9ea5c JS |
1151 | vport->port_state = LPFC_FLOGI; |
1152 | lpfc_set_disctmo(vport); | |
1153 | ||
c9f8735b | 1154 | /* First look for the Fabric ndlp */ |
2e0fef85 | 1155 | ndlp = lpfc_findnode_did(vport, Fabric_DID); |
c9f8735b | 1156 | if (!ndlp) { |
dea3101e | 1157 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b JW |
1158 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
1159 | if (!ndlp) | |
1160 | return 0; | |
2e0fef85 | 1161 | lpfc_nlp_init(vport, ndlp, Fabric_DID); |
6fb120a7 JS |
1162 | /* Set the node type */ |
1163 | ndlp->nlp_type |= NLP_FABRIC; | |
e47c9093 JS |
1164 | /* Put ndlp onto node list */ |
1165 | lpfc_enqueue_node(vport, ndlp); | |
1166 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
1167 | /* re-setup ndlp without removing from node list */ | |
1168 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
1169 | if (!ndlp) | |
1170 | return 0; | |
dea3101e | 1171 | } |
87af33fe | 1172 | |
5ac6b303 | 1173 | if (lpfc_issue_els_flogi(vport, ndlp, 0)) { |
fa4066b6 JS |
1174 | /* This decrement of reference count to node shall kick off |
1175 | * the release of the node. | |
1176 | */ | |
329f9bc7 | 1177 | lpfc_nlp_put(ndlp); |
5ac6b303 JS |
1178 | return 0; |
1179 | } | |
c9f8735b | 1180 | return 1; |
dea3101e | 1181 | } |
1182 | ||
e59058c4 | 1183 | /** |
3621a710 | 1184 | * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport |
e59058c4 JS |
1185 | * @vport: pointer to a host virtual N_Port data structure. |
1186 | * | |
1187 | * This routine issues an initial Fabric Discover (FDISC) for the @vport | |
1188 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
1189 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
1190 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
1191 | * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine | |
1192 | * is then invoked with the @vport and the ndlp to perform the FDISC for the | |
1193 | * @vport. | |
1194 | * | |
1195 | * Return code | |
1196 | * 0 - failed to issue initial fdisc for @vport | |
1197 | * 1 - successfully issued initial fdisc for @vport | |
1198 | **/ | |
92d7f7b0 JS |
1199 | int |
1200 | lpfc_initial_fdisc(struct lpfc_vport *vport) | |
1201 | { | |
1202 | struct lpfc_hba *phba = vport->phba; | |
1203 | struct lpfc_nodelist *ndlp; | |
1204 | ||
1205 | /* First look for the Fabric ndlp */ | |
1206 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
1207 | if (!ndlp) { | |
1208 | /* Cannot find existing Fabric ndlp, so allocate a new one */ | |
1209 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
1210 | if (!ndlp) | |
1211 | return 0; | |
1212 | lpfc_nlp_init(vport, ndlp, Fabric_DID); | |
e47c9093 JS |
1213 | /* Put ndlp onto node list */ |
1214 | lpfc_enqueue_node(vport, ndlp); | |
1215 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
1216 | /* re-setup ndlp without removing from node list */ | |
1217 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
1218 | if (!ndlp) | |
1219 | return 0; | |
92d7f7b0 | 1220 | } |
e47c9093 | 1221 | |
92d7f7b0 | 1222 | if (lpfc_issue_els_fdisc(vport, ndlp, 0)) { |
fa4066b6 JS |
1223 | /* decrement node reference count to trigger the release of |
1224 | * the node. | |
1225 | */ | |
92d7f7b0 | 1226 | lpfc_nlp_put(ndlp); |
fa4066b6 | 1227 | return 0; |
92d7f7b0 JS |
1228 | } |
1229 | return 1; | |
1230 | } | |
87af33fe | 1231 | |
e59058c4 | 1232 | /** |
3621a710 | 1233 | * lpfc_more_plogi - Check and issue remaining plogis for a vport |
e59058c4 JS |
1234 | * @vport: pointer to a host virtual N_Port data structure. |
1235 | * | |
1236 | * This routine checks whether there are more remaining Port Logins | |
1237 | * (PLOGI) to be issued for the @vport. If so, it will invoke the routine | |
1238 | * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes | |
1239 | * to issue ELS PLOGIs up to the configured discover threads with the | |
1240 | * @vport (@vport->cfg_discovery_threads). The function also decrement | |
1241 | * the @vport's num_disc_node by 1 if it is not already 0. | |
1242 | **/ | |
87af33fe | 1243 | void |
2e0fef85 | 1244 | lpfc_more_plogi(struct lpfc_vport *vport) |
dea3101e | 1245 | { |
1246 | int sentplogi; | |
1247 | ||
2e0fef85 JS |
1248 | if (vport->num_disc_nodes) |
1249 | vport->num_disc_nodes--; | |
dea3101e | 1250 | |
1251 | /* Continue discovery with <num_disc_nodes> PLOGIs to go */ | |
e8b62011 JS |
1252 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
1253 | "0232 Continue discovery with %d PLOGIs to go " | |
1254 | "Data: x%x x%x x%x\n", | |
1255 | vport->num_disc_nodes, vport->fc_plogi_cnt, | |
1256 | vport->fc_flag, vport->port_state); | |
dea3101e | 1257 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 JS |
1258 | if (vport->fc_flag & FC_NLP_MORE) |
1259 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ | |
1260 | sentplogi = lpfc_els_disc_plogi(vport); | |
1261 | ||
dea3101e | 1262 | return; |
1263 | } | |
1264 | ||
e59058c4 | 1265 | /** |
3621a710 | 1266 | * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp |
e59058c4 JS |
1267 | * @phba: pointer to lpfc hba data structure. |
1268 | * @prsp: pointer to response IOCB payload. | |
1269 | * @ndlp: pointer to a node-list data structure. | |
1270 | * | |
1271 | * This routine checks and indicates whether the WWPN of an N_Port, retrieved | |
1272 | * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt. | |
1273 | * The following cases are considered N_Port confirmed: | |
1274 | * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches | |
1275 | * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but | |
1276 | * it does not have WWPN assigned either. If the WWPN is confirmed, the | |
1277 | * pointer to the @ndlp will be returned. If the WWPN is not confirmed: | |
1278 | * 1) if there is a node on vport list other than the @ndlp with the same | |
1279 | * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked | |
1280 | * on that node to release the RPI associated with the node; 2) if there is | |
1281 | * no node found on vport list with the same WWPN of the N_Port PLOGI logged | |
1282 | * into, a new node shall be allocated (or activated). In either case, the | |
1283 | * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall | |
1284 | * be released and the new_ndlp shall be put on to the vport node list and | |
1285 | * its pointer returned as the confirmed node. | |
1286 | * | |
1287 | * Note that before the @ndlp got "released", the keepDID from not-matching | |
1288 | * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID | |
1289 | * of the @ndlp. This is because the release of @ndlp is actually to put it | |
1290 | * into an inactive state on the vport node list and the vport node list | |
1291 | * management algorithm does not allow two node with a same DID. | |
1292 | * | |
1293 | * Return code | |
1294 | * pointer to the PLOGI N_Port @ndlp | |
1295 | **/ | |
488d1469 | 1296 | static struct lpfc_nodelist * |
92d7f7b0 | 1297 | lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, |
488d1469 JS |
1298 | struct lpfc_nodelist *ndlp) |
1299 | { | |
2e0fef85 | 1300 | struct lpfc_vport *vport = ndlp->vport; |
488d1469 | 1301 | struct lpfc_nodelist *new_ndlp; |
0ff10d46 JS |
1302 | struct lpfc_rport_data *rdata; |
1303 | struct fc_rport *rport; | |
488d1469 | 1304 | struct serv_parm *sp; |
92d7f7b0 | 1305 | uint8_t name[sizeof(struct lpfc_name)]; |
58da1ffb | 1306 | uint32_t rc, keepDID = 0; |
38b92ef8 JS |
1307 | int put_node; |
1308 | int put_rport; | |
488d1469 | 1309 | |
2fb9bd8b JS |
1310 | /* Fabric nodes can have the same WWPN so we don't bother searching |
1311 | * by WWPN. Just return the ndlp that was given to us. | |
1312 | */ | |
1313 | if (ndlp->nlp_type & NLP_FABRIC) | |
1314 | return ndlp; | |
1315 | ||
92d7f7b0 | 1316 | sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t)); |
685f0bf7 | 1317 | memset(name, 0, sizeof(struct lpfc_name)); |
488d1469 | 1318 | |
685f0bf7 | 1319 | /* Now we find out if the NPort we are logging into, matches the WWPN |
488d1469 JS |
1320 | * we have for that ndlp. If not, we have some work to do. |
1321 | */ | |
2e0fef85 | 1322 | new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName); |
488d1469 | 1323 | |
e47c9093 | 1324 | if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp)) |
488d1469 | 1325 | return ndlp; |
488d1469 JS |
1326 | |
1327 | if (!new_ndlp) { | |
2e0fef85 JS |
1328 | rc = memcmp(&ndlp->nlp_portname, name, |
1329 | sizeof(struct lpfc_name)); | |
92795650 JS |
1330 | if (!rc) |
1331 | return ndlp; | |
488d1469 JS |
1332 | new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC); |
1333 | if (!new_ndlp) | |
1334 | return ndlp; | |
2e0fef85 | 1335 | lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID); |
e47c9093 | 1336 | } else if (!NLP_CHK_NODE_ACT(new_ndlp)) { |
58da1ffb JS |
1337 | rc = memcmp(&ndlp->nlp_portname, name, |
1338 | sizeof(struct lpfc_name)); | |
1339 | if (!rc) | |
1340 | return ndlp; | |
e47c9093 JS |
1341 | new_ndlp = lpfc_enable_node(vport, new_ndlp, |
1342 | NLP_STE_UNUSED_NODE); | |
1343 | if (!new_ndlp) | |
1344 | return ndlp; | |
58da1ffb JS |
1345 | keepDID = new_ndlp->nlp_DID; |
1346 | } else | |
1347 | keepDID = new_ndlp->nlp_DID; | |
488d1469 | 1348 | |
2e0fef85 | 1349 | lpfc_unreg_rpi(vport, new_ndlp); |
488d1469 | 1350 | new_ndlp->nlp_DID = ndlp->nlp_DID; |
92795650 | 1351 | new_ndlp->nlp_prev_state = ndlp->nlp_prev_state; |
0ff10d46 JS |
1352 | |
1353 | if (ndlp->nlp_flag & NLP_NPR_2B_DISC) | |
1354 | new_ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
1355 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; | |
1356 | ||
e47c9093 | 1357 | /* Set state will put new_ndlp on to node list if not already done */ |
2e0fef85 | 1358 | lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state); |
488d1469 | 1359 | |
2e0fef85 | 1360 | /* Move this back to NPR state */ |
87af33fe JS |
1361 | if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) { |
1362 | /* The new_ndlp is replacing ndlp totally, so we need | |
1363 | * to put ndlp on UNUSED list and try to free it. | |
1364 | */ | |
0ff10d46 JS |
1365 | |
1366 | /* Fix up the rport accordingly */ | |
1367 | rport = ndlp->rport; | |
1368 | if (rport) { | |
1369 | rdata = rport->dd_data; | |
1370 | if (rdata->pnode == ndlp) { | |
1371 | lpfc_nlp_put(ndlp); | |
1372 | ndlp->rport = NULL; | |
1373 | rdata->pnode = lpfc_nlp_get(new_ndlp); | |
1374 | new_ndlp->rport = rport; | |
1375 | } | |
1376 | new_ndlp->nlp_type = ndlp->nlp_type; | |
1377 | } | |
58da1ffb JS |
1378 | /* We shall actually free the ndlp with both nlp_DID and |
1379 | * nlp_portname fields equals 0 to avoid any ndlp on the | |
1380 | * nodelist never to be used. | |
1381 | */ | |
1382 | if (ndlp->nlp_DID == 0) { | |
1383 | spin_lock_irq(&phba->ndlp_lock); | |
1384 | NLP_SET_FREE_REQ(ndlp); | |
1385 | spin_unlock_irq(&phba->ndlp_lock); | |
1386 | } | |
0ff10d46 | 1387 | |
58da1ffb JS |
1388 | /* Two ndlps cannot have the same did on the nodelist */ |
1389 | ndlp->nlp_DID = keepDID; | |
2e0fef85 | 1390 | lpfc_drop_node(vport, ndlp); |
87af33fe | 1391 | } |
92795650 | 1392 | else { |
2e0fef85 | 1393 | lpfc_unreg_rpi(vport, ndlp); |
58da1ffb JS |
1394 | /* Two ndlps cannot have the same did */ |
1395 | ndlp->nlp_DID = keepDID; | |
2e0fef85 | 1396 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
38b92ef8 JS |
1397 | /* Since we are swapping the ndlp passed in with the new one |
1398 | * and the did has already been swapped, copy over the | |
1399 | * state and names. | |
1400 | */ | |
1401 | memcpy(&new_ndlp->nlp_portname, &ndlp->nlp_portname, | |
1402 | sizeof(struct lpfc_name)); | |
1403 | memcpy(&new_ndlp->nlp_nodename, &ndlp->nlp_nodename, | |
1404 | sizeof(struct lpfc_name)); | |
1405 | new_ndlp->nlp_state = ndlp->nlp_state; | |
1406 | /* Fix up the rport accordingly */ | |
1407 | rport = ndlp->rport; | |
1408 | if (rport) { | |
1409 | rdata = rport->dd_data; | |
1410 | put_node = rdata->pnode != NULL; | |
1411 | put_rport = ndlp->rport != NULL; | |
1412 | rdata->pnode = NULL; | |
1413 | ndlp->rport = NULL; | |
1414 | if (put_node) | |
1415 | lpfc_nlp_put(ndlp); | |
1416 | if (put_rport) | |
1417 | put_device(&rport->dev); | |
1418 | } | |
92795650 | 1419 | } |
488d1469 JS |
1420 | return new_ndlp; |
1421 | } | |
1422 | ||
e59058c4 | 1423 | /** |
3621a710 | 1424 | * lpfc_end_rscn - Check and handle more rscn for a vport |
e59058c4 JS |
1425 | * @vport: pointer to a host virtual N_Port data structure. |
1426 | * | |
1427 | * This routine checks whether more Registration State Change | |
1428 | * Notifications (RSCNs) came in while the discovery state machine was in | |
1429 | * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be | |
1430 | * invoked to handle the additional RSCNs for the @vport. Otherwise, the | |
1431 | * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of | |
1432 | * handling the RSCNs. | |
1433 | **/ | |
87af33fe JS |
1434 | void |
1435 | lpfc_end_rscn(struct lpfc_vport *vport) | |
1436 | { | |
1437 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
1438 | ||
1439 | if (vport->fc_flag & FC_RSCN_MODE) { | |
1440 | /* | |
1441 | * Check to see if more RSCNs came in while we were | |
1442 | * processing this one. | |
1443 | */ | |
1444 | if (vport->fc_rscn_id_cnt || | |
1445 | (vport->fc_flag & FC_RSCN_DISCOVERY) != 0) | |
1446 | lpfc_els_handle_rscn(vport); | |
1447 | else { | |
1448 | spin_lock_irq(shost->host_lock); | |
1449 | vport->fc_flag &= ~FC_RSCN_MODE; | |
1450 | spin_unlock_irq(shost->host_lock); | |
1451 | } | |
1452 | } | |
1453 | } | |
1454 | ||
e59058c4 | 1455 | /** |
3621a710 | 1456 | * lpfc_cmpl_els_plogi - Completion callback function for plogi |
e59058c4 JS |
1457 | * @phba: pointer to lpfc hba data structure. |
1458 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1459 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1460 | * | |
1461 | * This routine is the completion callback function for issuing the Port | |
1462 | * Login (PLOGI) command. For PLOGI completion, there must be an active | |
1463 | * ndlp on the vport node list that matches the remote node ID from the | |
1464 | * PLOGI reponse IOCB. If such ndlp does not exist, the PLOGI is simply | |
1465 | * ignored and command IOCB released. The PLOGI response IOCB status is | |
1466 | * checked for error conditons. If there is error status reported, PLOGI | |
1467 | * retry shall be attempted by invoking the lpfc_els_retry() routine. | |
1468 | * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on | |
1469 | * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine | |
1470 | * (DSM) is set for this PLOGI completion. Finally, it checks whether | |
1471 | * there are additional N_Port nodes with the vport that need to perform | |
1472 | * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition | |
1473 | * PLOGIs. | |
1474 | **/ | |
dea3101e | 1475 | static void |
2e0fef85 JS |
1476 | lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1477 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1478 | { |
2e0fef85 JS |
1479 | struct lpfc_vport *vport = cmdiocb->vport; |
1480 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 1481 | IOCB_t *irsp; |
dea3101e | 1482 | struct lpfc_nodelist *ndlp; |
92795650 | 1483 | struct lpfc_dmabuf *prsp; |
dea3101e | 1484 | int disc, rc, did, type; |
1485 | ||
dea3101e | 1486 | /* we pass cmdiocb to state machine which needs rspiocb as well */ |
1487 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1488 | ||
1489 | irsp = &rspiocb->iocb; | |
858c9f6c JS |
1490 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1491 | "PLOGI cmpl: status:x%x/x%x did:x%x", | |
1492 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1493 | irsp->un.elsreq64.remoteID); | |
1494 | ||
2e0fef85 | 1495 | ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID); |
e47c9093 | 1496 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
e8b62011 JS |
1497 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1498 | "0136 PLOGI completes to NPort x%x " | |
1499 | "with no ndlp. Data: x%x x%x x%x\n", | |
1500 | irsp->un.elsreq64.remoteID, | |
1501 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1502 | irsp->ulpIoTag); | |
488d1469 | 1503 | goto out; |
ed957684 | 1504 | } |
dea3101e | 1505 | |
1506 | /* Since ndlp can be freed in the disc state machine, note if this node | |
1507 | * is being used during discovery. | |
1508 | */ | |
2e0fef85 | 1509 | spin_lock_irq(shost->host_lock); |
dea3101e | 1510 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
488d1469 | 1511 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 | 1512 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1513 | rc = 0; |
1514 | ||
1515 | /* PLOGI completes to NPort <nlp_DID> */ | |
e8b62011 JS |
1516 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1517 | "0102 PLOGI completes to NPort x%x " | |
1518 | "Data: x%x x%x x%x x%x x%x\n", | |
1519 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1520 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 1521 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
1522 | if (lpfc_els_chk_latt(vport)) { |
1523 | spin_lock_irq(shost->host_lock); | |
dea3101e | 1524 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1525 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1526 | goto out; |
1527 | } | |
1528 | ||
1529 | /* ndlp could be freed in DSM, save these values now */ | |
1530 | type = ndlp->nlp_type; | |
1531 | did = ndlp->nlp_DID; | |
1532 | ||
1533 | if (irsp->ulpStatus) { | |
1534 | /* Check for retry */ | |
1535 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1536 | /* ELS command is being retried */ | |
1537 | if (disc) { | |
2e0fef85 | 1538 | spin_lock_irq(shost->host_lock); |
dea3101e | 1539 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1540 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1541 | } |
1542 | goto out; | |
1543 | } | |
2a9bf3d0 JS |
1544 | /* PLOGI failed Don't print the vport to vport rjts */ |
1545 | if (irsp->ulpStatus != IOSTAT_LS_RJT || | |
1546 | (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) && | |
1547 | ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) || | |
1548 | (phba)->pport->cfg_log_verbose & LOG_ELS) | |
1549 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
e40a02c1 JS |
1550 | "2753 PLOGI failure DID:%06X Status:x%x/x%x\n", |
1551 | ndlp->nlp_DID, irsp->ulpStatus, | |
1552 | irsp->un.ulpWord[4]); | |
dea3101e | 1553 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 1554 | if (lpfc_error_lost_link(irsp)) |
c9f8735b | 1555 | rc = NLP_STE_FREED_NODE; |
e47c9093 | 1556 | else |
2e0fef85 | 1557 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1558 | NLP_EVT_CMPL_PLOGI); |
dea3101e | 1559 | } else { |
1560 | /* Good status, call state machine */ | |
92795650 | 1561 | prsp = list_entry(((struct lpfc_dmabuf *) |
92d7f7b0 JS |
1562 | cmdiocb->context2)->list.next, |
1563 | struct lpfc_dmabuf, list); | |
1564 | ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp); | |
2e0fef85 | 1565 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1566 | NLP_EVT_CMPL_PLOGI); |
dea3101e | 1567 | } |
1568 | ||
2e0fef85 | 1569 | if (disc && vport->num_disc_nodes) { |
dea3101e | 1570 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 | 1571 | lpfc_more_plogi(vport); |
dea3101e | 1572 | |
2e0fef85 JS |
1573 | if (vport->num_disc_nodes == 0) { |
1574 | spin_lock_irq(shost->host_lock); | |
1575 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
1576 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 1577 | |
2e0fef85 | 1578 | lpfc_can_disctmo(vport); |
87af33fe | 1579 | lpfc_end_rscn(vport); |
dea3101e | 1580 | } |
1581 | } | |
1582 | ||
1583 | out: | |
1584 | lpfc_els_free_iocb(phba, cmdiocb); | |
1585 | return; | |
1586 | } | |
1587 | ||
e59058c4 | 1588 | /** |
3621a710 | 1589 | * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport |
e59058c4 JS |
1590 | * @vport: pointer to a host virtual N_Port data structure. |
1591 | * @did: destination port identifier. | |
1592 | * @retry: number of retries to the command IOCB. | |
1593 | * | |
1594 | * This routine issues a Port Login (PLOGI) command to a remote N_Port | |
1595 | * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port, | |
1596 | * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list. | |
1597 | * This routine constructs the proper feilds of the PLOGI IOCB and invokes | |
1598 | * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command. | |
1599 | * | |
1600 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1601 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1602 | * will be stored into the context1 field of the IOCB for the completion | |
1603 | * callback function to the PLOGI ELS command. | |
1604 | * | |
1605 | * Return code | |
1606 | * 0 - Successfully issued a plogi for @vport | |
1607 | * 1 - failed to issue a plogi for @vport | |
1608 | **/ | |
dea3101e | 1609 | int |
2e0fef85 | 1610 | lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) |
dea3101e | 1611 | { |
2e0fef85 | 1612 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 1613 | struct serv_parm *sp; |
1614 | IOCB_t *icmd; | |
98c9ea5c | 1615 | struct lpfc_nodelist *ndlp; |
dea3101e | 1616 | struct lpfc_iocbq *elsiocb; |
dea3101e | 1617 | struct lpfc_sli *psli; |
1618 | uint8_t *pcmd; | |
1619 | uint16_t cmdsize; | |
92d7f7b0 | 1620 | int ret; |
dea3101e | 1621 | |
1622 | psli = &phba->sli; | |
dea3101e | 1623 | |
98c9ea5c | 1624 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
1625 | if (ndlp && !NLP_CHK_NODE_ACT(ndlp)) |
1626 | ndlp = NULL; | |
98c9ea5c | 1627 | |
e47c9093 | 1628 | /* If ndlp is not NULL, we will bump the reference count on it */ |
92d7f7b0 | 1629 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
98c9ea5c | 1630 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, |
2e0fef85 | 1631 | ELS_CMD_PLOGI); |
c9f8735b JW |
1632 | if (!elsiocb) |
1633 | return 1; | |
dea3101e | 1634 | |
1635 | icmd = &elsiocb->iocb; | |
1636 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1637 | ||
1638 | /* For PLOGI request, remainder of payload is service parameters */ | |
1639 | *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI; | |
92d7f7b0 JS |
1640 | pcmd += sizeof(uint32_t); |
1641 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e | 1642 | sp = (struct serv_parm *) pcmd; |
1643 | ||
5ac6b303 JS |
1644 | /* |
1645 | * If we are a N-port connected to a Fabric, fix-up paramm's so logins | |
1646 | * to device on remote loops work. | |
1647 | */ | |
1648 | if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP)) | |
1649 | sp->cmn.altBbCredit = 1; | |
1650 | ||
dea3101e | 1651 | if (sp->cmn.fcphLow < FC_PH_4_3) |
1652 | sp->cmn.fcphLow = FC_PH_4_3; | |
1653 | ||
1654 | if (sp->cmn.fcphHigh < FC_PH3) | |
1655 | sp->cmn.fcphHigh = FC_PH3; | |
1656 | ||
858c9f6c JS |
1657 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1658 | "Issue PLOGI: did:x%x", | |
1659 | did, 0, 0); | |
1660 | ||
dea3101e | 1661 | phba->fc_stat.elsXmitPLOGI++; |
1662 | elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi; | |
3772a991 | 1663 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
1664 | |
1665 | if (ret == IOCB_ERROR) { | |
dea3101e | 1666 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1667 | return 1; |
dea3101e | 1668 | } |
c9f8735b | 1669 | return 0; |
dea3101e | 1670 | } |
1671 | ||
e59058c4 | 1672 | /** |
3621a710 | 1673 | * lpfc_cmpl_els_prli - Completion callback function for prli |
e59058c4 JS |
1674 | * @phba: pointer to lpfc hba data structure. |
1675 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1676 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1677 | * | |
1678 | * This routine is the completion callback function for a Process Login | |
1679 | * (PRLI) ELS command. The PRLI response IOCB status is checked for error | |
1680 | * status. If there is error status reported, PRLI retry shall be attempted | |
1681 | * by invoking the lpfc_els_retry() routine. Otherwise, the state | |
1682 | * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this | |
1683 | * ndlp to mark the PRLI completion. | |
1684 | **/ | |
dea3101e | 1685 | static void |
2e0fef85 JS |
1686 | lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1687 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1688 | { |
2e0fef85 JS |
1689 | struct lpfc_vport *vport = cmdiocb->vport; |
1690 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 1691 | IOCB_t *irsp; |
1692 | struct lpfc_sli *psli; | |
1693 | struct lpfc_nodelist *ndlp; | |
1694 | ||
1695 | psli = &phba->sli; | |
1696 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1697 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1698 | ||
1699 | irsp = &(rspiocb->iocb); | |
1700 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2e0fef85 | 1701 | spin_lock_irq(shost->host_lock); |
dea3101e | 1702 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 1703 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1704 | |
858c9f6c JS |
1705 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1706 | "PRLI cmpl: status:x%x/x%x did:x%x", | |
1707 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1708 | ndlp->nlp_DID); | |
dea3101e | 1709 | /* PRLI completes to NPort <nlp_DID> */ |
e8b62011 JS |
1710 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1711 | "0103 PRLI completes to NPort x%x " | |
1712 | "Data: x%x x%x x%x x%x\n", | |
1713 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1714 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 1715 | |
2e0fef85 | 1716 | vport->fc_prli_sent--; |
dea3101e | 1717 | /* Check to see if link went down during discovery */ |
2e0fef85 | 1718 | if (lpfc_els_chk_latt(vport)) |
dea3101e | 1719 | goto out; |
1720 | ||
1721 | if (irsp->ulpStatus) { | |
1722 | /* Check for retry */ | |
1723 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1724 | /* ELS command is being retried */ | |
1725 | goto out; | |
1726 | } | |
1727 | /* PRLI failed */ | |
e40a02c1 JS |
1728 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1729 | "2754 PRLI failure DID:%06X Status:x%x/x%x\n", | |
1730 | ndlp->nlp_DID, irsp->ulpStatus, | |
1731 | irsp->un.ulpWord[4]); | |
dea3101e | 1732 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 1733 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 1734 | goto out; |
e47c9093 | 1735 | else |
2e0fef85 | 1736 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1737 | NLP_EVT_CMPL_PRLI); |
e47c9093 | 1738 | } else |
dea3101e | 1739 | /* Good status, call state machine */ |
2e0fef85 | 1740 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1741 | NLP_EVT_CMPL_PRLI); |
dea3101e | 1742 | out: |
1743 | lpfc_els_free_iocb(phba, cmdiocb); | |
1744 | return; | |
1745 | } | |
1746 | ||
e59058c4 | 1747 | /** |
3621a710 | 1748 | * lpfc_issue_els_prli - Issue a prli iocb command for a vport |
e59058c4 JS |
1749 | * @vport: pointer to a host virtual N_Port data structure. |
1750 | * @ndlp: pointer to a node-list data structure. | |
1751 | * @retry: number of retries to the command IOCB. | |
1752 | * | |
1753 | * This routine issues a Process Login (PRLI) ELS command for the | |
1754 | * @vport. The PRLI service parameters are set up in the payload of the | |
1755 | * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine | |
1756 | * is put to the IOCB completion callback func field before invoking the | |
1757 | * routine lpfc_sli_issue_iocb() to send out PRLI command. | |
1758 | * | |
1759 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1760 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1761 | * will be stored into the context1 field of the IOCB for the completion | |
1762 | * callback function to the PRLI ELS command. | |
1763 | * | |
1764 | * Return code | |
1765 | * 0 - successfully issued prli iocb command for @vport | |
1766 | * 1 - failed to issue prli iocb command for @vport | |
1767 | **/ | |
dea3101e | 1768 | int |
2e0fef85 | 1769 | lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e | 1770 | uint8_t retry) |
1771 | { | |
2e0fef85 JS |
1772 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
1773 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 1774 | PRLI *npr; |
1775 | IOCB_t *icmd; | |
1776 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 1777 | uint8_t *pcmd; |
1778 | uint16_t cmdsize; | |
1779 | ||
92d7f7b0 | 1780 | cmdsize = (sizeof(uint32_t) + sizeof(PRLI)); |
2e0fef85 JS |
1781 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1782 | ndlp->nlp_DID, ELS_CMD_PRLI); | |
488d1469 | 1783 | if (!elsiocb) |
c9f8735b | 1784 | return 1; |
dea3101e | 1785 | |
1786 | icmd = &elsiocb->iocb; | |
1787 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1788 | ||
1789 | /* For PRLI request, remainder of payload is service parameters */ | |
92d7f7b0 | 1790 | memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t))); |
dea3101e | 1791 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLI; |
92d7f7b0 | 1792 | pcmd += sizeof(uint32_t); |
dea3101e | 1793 | |
1794 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
1795 | npr = (PRLI *) pcmd; | |
1796 | /* | |
1797 | * If our firmware version is 3.20 or later, | |
1798 | * set the following bits for FC-TAPE support. | |
1799 | */ | |
1800 | if (phba->vpd.rev.feaLevelHigh >= 0x02) { | |
1801 | npr->ConfmComplAllowed = 1; | |
1802 | npr->Retry = 1; | |
1803 | npr->TaskRetryIdReq = 1; | |
1804 | } | |
1805 | npr->estabImagePair = 1; | |
1806 | npr->readXferRdyDis = 1; | |
1807 | ||
1808 | /* For FCP support */ | |
1809 | npr->prliType = PRLI_FCP_TYPE; | |
1810 | npr->initiatorFunc = 1; | |
1811 | ||
858c9f6c JS |
1812 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1813 | "Issue PRLI: did:x%x", | |
1814 | ndlp->nlp_DID, 0, 0); | |
1815 | ||
dea3101e | 1816 | phba->fc_stat.elsXmitPRLI++; |
1817 | elsiocb->iocb_cmpl = lpfc_cmpl_els_prli; | |
2e0fef85 | 1818 | spin_lock_irq(shost->host_lock); |
dea3101e | 1819 | ndlp->nlp_flag |= NLP_PRLI_SND; |
2e0fef85 | 1820 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
1821 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
1822 | IOCB_ERROR) { | |
2e0fef85 | 1823 | spin_lock_irq(shost->host_lock); |
dea3101e | 1824 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 1825 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1826 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1827 | return 1; |
dea3101e | 1828 | } |
2e0fef85 | 1829 | vport->fc_prli_sent++; |
c9f8735b | 1830 | return 0; |
dea3101e | 1831 | } |
1832 | ||
90160e01 | 1833 | /** |
3621a710 | 1834 | * lpfc_rscn_disc - Perform rscn discovery for a vport |
90160e01 JS |
1835 | * @vport: pointer to a host virtual N_Port data structure. |
1836 | * | |
1837 | * This routine performs Registration State Change Notification (RSCN) | |
1838 | * discovery for a @vport. If the @vport's node port recovery count is not | |
1839 | * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all | |
1840 | * the nodes that need recovery. If none of the PLOGI were needed through | |
1841 | * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be | |
1842 | * invoked to check and handle possible more RSCN came in during the period | |
1843 | * of processing the current ones. | |
1844 | **/ | |
1845 | static void | |
1846 | lpfc_rscn_disc(struct lpfc_vport *vport) | |
1847 | { | |
1848 | lpfc_can_disctmo(vport); | |
1849 | ||
1850 | /* RSCN discovery */ | |
1851 | /* go thru NPR nodes and issue ELS PLOGIs */ | |
1852 | if (vport->fc_npr_cnt) | |
1853 | if (lpfc_els_disc_plogi(vport)) | |
1854 | return; | |
1855 | ||
1856 | lpfc_end_rscn(vport); | |
1857 | } | |
1858 | ||
1859 | /** | |
3621a710 | 1860 | * lpfc_adisc_done - Complete the adisc phase of discovery |
90160e01 JS |
1861 | * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs. |
1862 | * | |
1863 | * This function is called when the final ADISC is completed during discovery. | |
1864 | * This function handles clearing link attention or issuing reg_vpi depending | |
1865 | * on whether npiv is enabled. This function also kicks off the PLOGI phase of | |
1866 | * discovery. | |
1867 | * This function is called with no locks held. | |
1868 | **/ | |
1869 | static void | |
1870 | lpfc_adisc_done(struct lpfc_vport *vport) | |
1871 | { | |
1872 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
1873 | struct lpfc_hba *phba = vport->phba; | |
1874 | ||
1875 | /* | |
1876 | * For NPIV, cmpl_reg_vpi will set port_state to READY, | |
1877 | * and continue discovery. | |
1878 | */ | |
1879 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
6fb120a7 JS |
1880 | !(vport->fc_flag & FC_RSCN_MODE) && |
1881 | (phba->sli_rev < LPFC_SLI_REV4)) { | |
90160e01 JS |
1882 | lpfc_issue_reg_vpi(phba, vport); |
1883 | return; | |
1884 | } | |
1885 | /* | |
1886 | * For SLI2, we need to set port_state to READY | |
1887 | * and continue discovery. | |
1888 | */ | |
1889 | if (vport->port_state < LPFC_VPORT_READY) { | |
1890 | /* If we get here, there is nothing to ADISC */ | |
1891 | if (vport->port_type == LPFC_PHYSICAL_PORT) | |
1892 | lpfc_issue_clear_la(phba, vport); | |
1893 | if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { | |
1894 | vport->num_disc_nodes = 0; | |
1895 | /* go thru NPR list, issue ELS PLOGIs */ | |
1896 | if (vport->fc_npr_cnt) | |
1897 | lpfc_els_disc_plogi(vport); | |
1898 | if (!vport->num_disc_nodes) { | |
1899 | spin_lock_irq(shost->host_lock); | |
1900 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
1901 | spin_unlock_irq(shost->host_lock); | |
1902 | lpfc_can_disctmo(vport); | |
1903 | lpfc_end_rscn(vport); | |
1904 | } | |
1905 | } | |
1906 | vport->port_state = LPFC_VPORT_READY; | |
1907 | } else | |
1908 | lpfc_rscn_disc(vport); | |
1909 | } | |
1910 | ||
e59058c4 | 1911 | /** |
3621a710 | 1912 | * lpfc_more_adisc - Issue more adisc as needed |
e59058c4 JS |
1913 | * @vport: pointer to a host virtual N_Port data structure. |
1914 | * | |
1915 | * This routine determines whether there are more ndlps on a @vport | |
1916 | * node list need to have Address Discover (ADISC) issued. If so, it will | |
1917 | * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's | |
1918 | * remaining nodes which need to have ADISC sent. | |
1919 | **/ | |
0ff10d46 | 1920 | void |
2e0fef85 | 1921 | lpfc_more_adisc(struct lpfc_vport *vport) |
dea3101e | 1922 | { |
1923 | int sentadisc; | |
1924 | ||
2e0fef85 JS |
1925 | if (vport->num_disc_nodes) |
1926 | vport->num_disc_nodes--; | |
dea3101e | 1927 | /* Continue discovery with <num_disc_nodes> ADISCs to go */ |
e8b62011 JS |
1928 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
1929 | "0210 Continue discovery with %d ADISCs to go " | |
1930 | "Data: x%x x%x x%x\n", | |
1931 | vport->num_disc_nodes, vport->fc_adisc_cnt, | |
1932 | vport->fc_flag, vport->port_state); | |
dea3101e | 1933 | /* Check to see if there are more ADISCs to be sent */ |
2e0fef85 JS |
1934 | if (vport->fc_flag & FC_NLP_MORE) { |
1935 | lpfc_set_disctmo(vport); | |
1936 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ | |
1937 | sentadisc = lpfc_els_disc_adisc(vport); | |
dea3101e | 1938 | } |
90160e01 JS |
1939 | if (!vport->num_disc_nodes) |
1940 | lpfc_adisc_done(vport); | |
dea3101e | 1941 | return; |
1942 | } | |
1943 | ||
e59058c4 | 1944 | /** |
3621a710 | 1945 | * lpfc_cmpl_els_adisc - Completion callback function for adisc |
e59058c4 JS |
1946 | * @phba: pointer to lpfc hba data structure. |
1947 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1948 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1949 | * | |
1950 | * This routine is the completion function for issuing the Address Discover | |
1951 | * (ADISC) command. It first checks to see whether link went down during | |
1952 | * the discovery process. If so, the node will be marked as node port | |
1953 | * recovery for issuing discover IOCB by the link attention handler and | |
1954 | * exit. Otherwise, the response status is checked. If error was reported | |
1955 | * in the response status, the ADISC command shall be retried by invoking | |
1956 | * the lpfc_els_retry() routine. Otherwise, if no error was reported in | |
1957 | * the response status, the state machine is invoked to set transition | |
1958 | * with respect to NLP_EVT_CMPL_ADISC event. | |
1959 | **/ | |
dea3101e | 1960 | static void |
2e0fef85 JS |
1961 | lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1962 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1963 | { |
2e0fef85 JS |
1964 | struct lpfc_vport *vport = cmdiocb->vport; |
1965 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 1966 | IOCB_t *irsp; |
dea3101e | 1967 | struct lpfc_nodelist *ndlp; |
2e0fef85 | 1968 | int disc; |
dea3101e | 1969 | |
1970 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1971 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1972 | ||
1973 | irsp = &(rspiocb->iocb); | |
1974 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
dea3101e | 1975 | |
858c9f6c JS |
1976 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1977 | "ADISC cmpl: status:x%x/x%x did:x%x", | |
1978 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1979 | ndlp->nlp_DID); | |
1980 | ||
dea3101e | 1981 | /* Since ndlp can be freed in the disc state machine, note if this node |
1982 | * is being used during discovery. | |
1983 | */ | |
2e0fef85 | 1984 | spin_lock_irq(shost->host_lock); |
dea3101e | 1985 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
c9f8735b | 1986 | ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC); |
2e0fef85 | 1987 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1988 | /* ADISC completes to NPort <nlp_DID> */ |
e8b62011 JS |
1989 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1990 | "0104 ADISC completes to NPort x%x " | |
1991 | "Data: x%x x%x x%x x%x x%x\n", | |
1992 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1993 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 1994 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
1995 | if (lpfc_els_chk_latt(vport)) { |
1996 | spin_lock_irq(shost->host_lock); | |
dea3101e | 1997 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1998 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1999 | goto out; |
2000 | } | |
2001 | ||
2002 | if (irsp->ulpStatus) { | |
2003 | /* Check for retry */ | |
2004 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
2005 | /* ELS command is being retried */ | |
2006 | if (disc) { | |
2e0fef85 | 2007 | spin_lock_irq(shost->host_lock); |
dea3101e | 2008 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 JS |
2009 | spin_unlock_irq(shost->host_lock); |
2010 | lpfc_set_disctmo(vport); | |
dea3101e | 2011 | } |
2012 | goto out; | |
2013 | } | |
2014 | /* ADISC failed */ | |
e40a02c1 JS |
2015 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2016 | "2755 ADISC failure DID:%06X Status:x%x/x%x\n", | |
2017 | ndlp->nlp_DID, irsp->ulpStatus, | |
2018 | irsp->un.ulpWord[4]); | |
dea3101e | 2019 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 2020 | if (!lpfc_error_lost_link(irsp)) |
2e0fef85 | 2021 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
858c9f6c | 2022 | NLP_EVT_CMPL_ADISC); |
e47c9093 | 2023 | } else |
dea3101e | 2024 | /* Good status, call state machine */ |
2e0fef85 | 2025 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
dea3101e | 2026 | NLP_EVT_CMPL_ADISC); |
dea3101e | 2027 | |
90160e01 JS |
2028 | /* Check to see if there are more ADISCs to be sent */ |
2029 | if (disc && vport->num_disc_nodes) | |
2e0fef85 | 2030 | lpfc_more_adisc(vport); |
dea3101e | 2031 | out: |
2032 | lpfc_els_free_iocb(phba, cmdiocb); | |
2033 | return; | |
2034 | } | |
2035 | ||
e59058c4 | 2036 | /** |
3621a710 | 2037 | * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport |
e59058c4 JS |
2038 | * @vport: pointer to a virtual N_Port data structure. |
2039 | * @ndlp: pointer to a node-list data structure. | |
2040 | * @retry: number of retries to the command IOCB. | |
2041 | * | |
2042 | * This routine issues an Address Discover (ADISC) for an @ndlp on a | |
2043 | * @vport. It prepares the payload of the ADISC ELS command, updates the | |
2044 | * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine | |
2045 | * to issue the ADISC ELS command. | |
2046 | * | |
2047 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2048 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2049 | * will be stored into the context1 field of the IOCB for the completion | |
2050 | * callback function to the ADISC ELS command. | |
2051 | * | |
2052 | * Return code | |
2053 | * 0 - successfully issued adisc | |
2054 | * 1 - failed to issue adisc | |
2055 | **/ | |
dea3101e | 2056 | int |
2e0fef85 | 2057 | lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e | 2058 | uint8_t retry) |
2059 | { | |
2e0fef85 JS |
2060 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2061 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 2062 | ADISC *ap; |
2063 | IOCB_t *icmd; | |
2064 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 2065 | uint8_t *pcmd; |
2066 | uint16_t cmdsize; | |
2067 | ||
92d7f7b0 | 2068 | cmdsize = (sizeof(uint32_t) + sizeof(ADISC)); |
2e0fef85 JS |
2069 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2070 | ndlp->nlp_DID, ELS_CMD_ADISC); | |
488d1469 | 2071 | if (!elsiocb) |
c9f8735b | 2072 | return 1; |
dea3101e | 2073 | |
2074 | icmd = &elsiocb->iocb; | |
2075 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2076 | ||
2077 | /* For ADISC request, remainder of payload is service parameters */ | |
2078 | *((uint32_t *) (pcmd)) = ELS_CMD_ADISC; | |
92d7f7b0 | 2079 | pcmd += sizeof(uint32_t); |
dea3101e | 2080 | |
2081 | /* Fill in ADISC payload */ | |
2082 | ap = (ADISC *) pcmd; | |
2083 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
2084 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2085 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2086 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 2087 | |
858c9f6c JS |
2088 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2089 | "Issue ADISC: did:x%x", | |
2090 | ndlp->nlp_DID, 0, 0); | |
2091 | ||
dea3101e | 2092 | phba->fc_stat.elsXmitADISC++; |
2093 | elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc; | |
2e0fef85 | 2094 | spin_lock_irq(shost->host_lock); |
dea3101e | 2095 | ndlp->nlp_flag |= NLP_ADISC_SND; |
2e0fef85 | 2096 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
2097 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2098 | IOCB_ERROR) { | |
2e0fef85 | 2099 | spin_lock_irq(shost->host_lock); |
dea3101e | 2100 | ndlp->nlp_flag &= ~NLP_ADISC_SND; |
2e0fef85 | 2101 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2102 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2103 | return 1; |
dea3101e | 2104 | } |
c9f8735b | 2105 | return 0; |
dea3101e | 2106 | } |
2107 | ||
e59058c4 | 2108 | /** |
3621a710 | 2109 | * lpfc_cmpl_els_logo - Completion callback function for logo |
e59058c4 JS |
2110 | * @phba: pointer to lpfc hba data structure. |
2111 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2112 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2113 | * | |
2114 | * This routine is the completion function for issuing the ELS Logout (LOGO) | |
2115 | * command. If no error status was reported from the LOGO response, the | |
2116 | * state machine of the associated ndlp shall be invoked for transition with | |
2117 | * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported, | |
2118 | * the lpfc_els_retry() routine will be invoked to retry the LOGO command. | |
2119 | **/ | |
dea3101e | 2120 | static void |
2e0fef85 JS |
2121 | lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2122 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2123 | { |
2e0fef85 JS |
2124 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
2125 | struct lpfc_vport *vport = ndlp->vport; | |
2126 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 2127 | IOCB_t *irsp; |
2128 | struct lpfc_sli *psli; | |
dea3101e | 2129 | |
2130 | psli = &phba->sli; | |
2131 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
2132 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
2133 | ||
2134 | irsp = &(rspiocb->iocb); | |
2e0fef85 | 2135 | spin_lock_irq(shost->host_lock); |
dea3101e | 2136 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 2137 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2138 | |
858c9f6c JS |
2139 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2140 | "LOGO cmpl: status:x%x/x%x did:x%x", | |
2141 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2142 | ndlp->nlp_DID); | |
dea3101e | 2143 | /* LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
2144 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2145 | "0105 LOGO completes to NPort x%x " | |
2146 | "Data: x%x x%x x%x x%x\n", | |
2147 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
2148 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 2149 | /* Check to see if link went down during discovery */ |
2e0fef85 | 2150 | if (lpfc_els_chk_latt(vport)) |
dea3101e | 2151 | goto out; |
2152 | ||
92d7f7b0 JS |
2153 | if (ndlp->nlp_flag & NLP_TARGET_REMOVE) { |
2154 | /* NLP_EVT_DEVICE_RM should unregister the RPI | |
2155 | * which should abort all outstanding IOs. | |
2156 | */ | |
2157 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, | |
2158 | NLP_EVT_DEVICE_RM); | |
2159 | goto out; | |
2160 | } | |
2161 | ||
dea3101e | 2162 | if (irsp->ulpStatus) { |
2163 | /* Check for retry */ | |
2e0fef85 | 2164 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e | 2165 | /* ELS command is being retried */ |
2166 | goto out; | |
dea3101e | 2167 | /* LOGO failed */ |
e40a02c1 JS |
2168 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2169 | "2756 LOGO failure DID:%06X Status:x%x/x%x\n", | |
2170 | ndlp->nlp_DID, irsp->ulpStatus, | |
2171 | irsp->un.ulpWord[4]); | |
dea3101e | 2172 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
858c9f6c | 2173 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 2174 | goto out; |
858c9f6c | 2175 | else |
2e0fef85 | 2176 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 2177 | NLP_EVT_CMPL_LOGO); |
e47c9093 | 2178 | } else |
5024ab17 JW |
2179 | /* Good status, call state machine. |
2180 | * This will unregister the rpi if needed. | |
2181 | */ | |
2e0fef85 | 2182 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 2183 | NLP_EVT_CMPL_LOGO); |
dea3101e | 2184 | out: |
2185 | lpfc_els_free_iocb(phba, cmdiocb); | |
2186 | return; | |
2187 | } | |
2188 | ||
e59058c4 | 2189 | /** |
3621a710 | 2190 | * lpfc_issue_els_logo - Issue a logo to an node on a vport |
e59058c4 JS |
2191 | * @vport: pointer to a virtual N_Port data structure. |
2192 | * @ndlp: pointer to a node-list data structure. | |
2193 | * @retry: number of retries to the command IOCB. | |
2194 | * | |
2195 | * This routine constructs and issues an ELS Logout (LOGO) iocb command | |
2196 | * to a remote node, referred by an @ndlp on a @vport. It constructs the | |
2197 | * payload of the IOCB, properly sets up the @ndlp state, and invokes the | |
2198 | * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command. | |
2199 | * | |
2200 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2201 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2202 | * will be stored into the context1 field of the IOCB for the completion | |
2203 | * callback function to the LOGO ELS command. | |
2204 | * | |
2205 | * Return code | |
2206 | * 0 - successfully issued logo | |
2207 | * 1 - failed to issue logo | |
2208 | **/ | |
dea3101e | 2209 | int |
2e0fef85 | 2210 | lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e | 2211 | uint8_t retry) |
2212 | { | |
2e0fef85 JS |
2213 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2214 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 2215 | IOCB_t *icmd; |
2216 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 2217 | uint8_t *pcmd; |
2218 | uint16_t cmdsize; | |
92d7f7b0 | 2219 | int rc; |
dea3101e | 2220 | |
98c9ea5c JS |
2221 | spin_lock_irq(shost->host_lock); |
2222 | if (ndlp->nlp_flag & NLP_LOGO_SND) { | |
2223 | spin_unlock_irq(shost->host_lock); | |
2224 | return 0; | |
2225 | } | |
2226 | spin_unlock_irq(shost->host_lock); | |
2227 | ||
92d7f7b0 | 2228 | cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name); |
2e0fef85 JS |
2229 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2230 | ndlp->nlp_DID, ELS_CMD_LOGO); | |
488d1469 | 2231 | if (!elsiocb) |
c9f8735b | 2232 | return 1; |
dea3101e | 2233 | |
2234 | icmd = &elsiocb->iocb; | |
2235 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2236 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
92d7f7b0 | 2237 | pcmd += sizeof(uint32_t); |
dea3101e | 2238 | |
2239 | /* Fill in LOGO payload */ | |
2e0fef85 | 2240 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); |
92d7f7b0 JS |
2241 | pcmd += sizeof(uint32_t); |
2242 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
dea3101e | 2243 | |
858c9f6c JS |
2244 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2245 | "Issue LOGO: did:x%x", | |
2246 | ndlp->nlp_DID, 0, 0); | |
2247 | ||
dea3101e | 2248 | phba->fc_stat.elsXmitLOGO++; |
2249 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo; | |
2e0fef85 | 2250 | spin_lock_irq(shost->host_lock); |
dea3101e | 2251 | ndlp->nlp_flag |= NLP_LOGO_SND; |
2e0fef85 | 2252 | spin_unlock_irq(shost->host_lock); |
3772a991 | 2253 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
2254 | |
2255 | if (rc == IOCB_ERROR) { | |
2e0fef85 | 2256 | spin_lock_irq(shost->host_lock); |
dea3101e | 2257 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 2258 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2259 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2260 | return 1; |
dea3101e | 2261 | } |
c9f8735b | 2262 | return 0; |
dea3101e | 2263 | } |
2264 | ||
e59058c4 | 2265 | /** |
3621a710 | 2266 | * lpfc_cmpl_els_cmd - Completion callback function for generic els command |
e59058c4 JS |
2267 | * @phba: pointer to lpfc hba data structure. |
2268 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2269 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2270 | * | |
2271 | * This routine is a generic completion callback function for ELS commands. | |
2272 | * Specifically, it is the callback function which does not need to perform | |
2273 | * any command specific operations. It is currently used by the ELS command | |
2274 | * issuing routines for the ELS State Change Request (SCR), | |
2275 | * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution | |
2276 | * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than | |
2277 | * certain debug loggings, this callback function simply invokes the | |
2278 | * lpfc_els_chk_latt() routine to check whether link went down during the | |
2279 | * discovery process. | |
2280 | **/ | |
dea3101e | 2281 | static void |
2e0fef85 JS |
2282 | lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2283 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2284 | { |
2e0fef85 | 2285 | struct lpfc_vport *vport = cmdiocb->vport; |
dea3101e | 2286 | IOCB_t *irsp; |
2287 | ||
2288 | irsp = &rspiocb->iocb; | |
2289 | ||
858c9f6c JS |
2290 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2291 | "ELS cmd cmpl: status:x%x/x%x did:x%x", | |
2292 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2293 | irsp->un.elsreq64.remoteID); | |
dea3101e | 2294 | /* ELS cmd tag <ulpIoTag> completes */ |
e8b62011 JS |
2295 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2296 | "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n", | |
2297 | irsp->ulpIoTag, irsp->ulpStatus, | |
2298 | irsp->un.ulpWord[4], irsp->ulpTimeout); | |
dea3101e | 2299 | /* Check to see if link went down during discovery */ |
2e0fef85 | 2300 | lpfc_els_chk_latt(vport); |
dea3101e | 2301 | lpfc_els_free_iocb(phba, cmdiocb); |
2302 | return; | |
2303 | } | |
2304 | ||
e59058c4 | 2305 | /** |
3621a710 | 2306 | * lpfc_issue_els_scr - Issue a scr to an node on a vport |
e59058c4 JS |
2307 | * @vport: pointer to a host virtual N_Port data structure. |
2308 | * @nportid: N_Port identifier to the remote node. | |
2309 | * @retry: number of retries to the command IOCB. | |
2310 | * | |
2311 | * This routine issues a State Change Request (SCR) to a fabric node | |
2312 | * on a @vport. The remote node @nportid is passed into the function. It | |
2313 | * first search the @vport node list to find the matching ndlp. If no such | |
2314 | * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An | |
2315 | * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb() | |
2316 | * routine is invoked to send the SCR IOCB. | |
2317 | * | |
2318 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2319 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2320 | * will be stored into the context1 field of the IOCB for the completion | |
2321 | * callback function to the SCR ELS command. | |
2322 | * | |
2323 | * Return code | |
2324 | * 0 - Successfully issued scr command | |
2325 | * 1 - Failed to issue scr command | |
2326 | **/ | |
dea3101e | 2327 | int |
2e0fef85 | 2328 | lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2329 | { |
2e0fef85 | 2330 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 2331 | IOCB_t *icmd; |
2332 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 2333 | struct lpfc_sli *psli; |
2334 | uint8_t *pcmd; | |
2335 | uint16_t cmdsize; | |
2336 | struct lpfc_nodelist *ndlp; | |
2337 | ||
2338 | psli = &phba->sli; | |
92d7f7b0 | 2339 | cmdsize = (sizeof(uint32_t) + sizeof(SCR)); |
dea3101e | 2340 | |
e47c9093 JS |
2341 | ndlp = lpfc_findnode_did(vport, nportid); |
2342 | if (!ndlp) { | |
2343 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2344 | if (!ndlp) | |
2345 | return 1; | |
2346 | lpfc_nlp_init(vport, ndlp, nportid); | |
2347 | lpfc_enqueue_node(vport, ndlp); | |
2348 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2349 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2350 | if (!ndlp) | |
2351 | return 1; | |
2352 | } | |
2e0fef85 JS |
2353 | |
2354 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2355 | ndlp->nlp_DID, ELS_CMD_SCR); | |
dea3101e | 2356 | |
488d1469 | 2357 | if (!elsiocb) { |
fa4066b6 JS |
2358 | /* This will trigger the release of the node just |
2359 | * allocated | |
2360 | */ | |
329f9bc7 | 2361 | lpfc_nlp_put(ndlp); |
c9f8735b | 2362 | return 1; |
dea3101e | 2363 | } |
2364 | ||
2365 | icmd = &elsiocb->iocb; | |
2366 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2367 | ||
2368 | *((uint32_t *) (pcmd)) = ELS_CMD_SCR; | |
92d7f7b0 | 2369 | pcmd += sizeof(uint32_t); |
dea3101e | 2370 | |
2371 | /* For SCR, remainder of payload is SCR parameter page */ | |
92d7f7b0 | 2372 | memset(pcmd, 0, sizeof(SCR)); |
dea3101e | 2373 | ((SCR *) pcmd)->Function = SCR_FUNC_FULL; |
2374 | ||
858c9f6c JS |
2375 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2376 | "Issue SCR: did:x%x", | |
2377 | ndlp->nlp_DID, 0, 0); | |
2378 | ||
dea3101e | 2379 | phba->fc_stat.elsXmitSCR++; |
2380 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2381 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2382 | IOCB_ERROR) { | |
fa4066b6 JS |
2383 | /* The additional lpfc_nlp_put will cause the following |
2384 | * lpfc_els_free_iocb routine to trigger the rlease of | |
2385 | * the node. | |
2386 | */ | |
329f9bc7 | 2387 | lpfc_nlp_put(ndlp); |
dea3101e | 2388 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2389 | return 1; |
dea3101e | 2390 | } |
fa4066b6 JS |
2391 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2392 | * trigger the release of node. | |
2393 | */ | |
329f9bc7 | 2394 | lpfc_nlp_put(ndlp); |
c9f8735b | 2395 | return 0; |
dea3101e | 2396 | } |
2397 | ||
e59058c4 | 2398 | /** |
3621a710 | 2399 | * lpfc_issue_els_farpr - Issue a farp to an node on a vport |
e59058c4 JS |
2400 | * @vport: pointer to a host virtual N_Port data structure. |
2401 | * @nportid: N_Port identifier to the remote node. | |
2402 | * @retry: number of retries to the command IOCB. | |
2403 | * | |
2404 | * This routine issues a Fibre Channel Address Resolution Response | |
2405 | * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid) | |
2406 | * is passed into the function. It first search the @vport node list to find | |
2407 | * the matching ndlp. If no such ndlp is found, a new ndlp shall be created | |
2408 | * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the | |
2409 | * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command. | |
2410 | * | |
2411 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2412 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2413 | * will be stored into the context1 field of the IOCB for the completion | |
2414 | * callback function to the PARPR ELS command. | |
2415 | * | |
2416 | * Return code | |
2417 | * 0 - Successfully issued farpr command | |
2418 | * 1 - Failed to issue farpr command | |
2419 | **/ | |
dea3101e | 2420 | static int |
2e0fef85 | 2421 | lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2422 | { |
2e0fef85 | 2423 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 2424 | IOCB_t *icmd; |
2425 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 2426 | struct lpfc_sli *psli; |
2427 | FARP *fp; | |
2428 | uint8_t *pcmd; | |
2429 | uint32_t *lp; | |
2430 | uint16_t cmdsize; | |
2431 | struct lpfc_nodelist *ondlp; | |
2432 | struct lpfc_nodelist *ndlp; | |
2433 | ||
2434 | psli = &phba->sli; | |
92d7f7b0 | 2435 | cmdsize = (sizeof(uint32_t) + sizeof(FARP)); |
dea3101e | 2436 | |
e47c9093 JS |
2437 | ndlp = lpfc_findnode_did(vport, nportid); |
2438 | if (!ndlp) { | |
2439 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2440 | if (!ndlp) | |
2441 | return 1; | |
2442 | lpfc_nlp_init(vport, ndlp, nportid); | |
2443 | lpfc_enqueue_node(vport, ndlp); | |
2444 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2445 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2446 | if (!ndlp) | |
2447 | return 1; | |
2448 | } | |
2e0fef85 JS |
2449 | |
2450 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2451 | ndlp->nlp_DID, ELS_CMD_RNID); | |
488d1469 | 2452 | if (!elsiocb) { |
fa4066b6 JS |
2453 | /* This will trigger the release of the node just |
2454 | * allocated | |
2455 | */ | |
329f9bc7 | 2456 | lpfc_nlp_put(ndlp); |
c9f8735b | 2457 | return 1; |
dea3101e | 2458 | } |
2459 | ||
2460 | icmd = &elsiocb->iocb; | |
2461 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2462 | ||
2463 | *((uint32_t *) (pcmd)) = ELS_CMD_FARPR; | |
92d7f7b0 | 2464 | pcmd += sizeof(uint32_t); |
dea3101e | 2465 | |
2466 | /* Fill in FARPR payload */ | |
2467 | fp = (FARP *) (pcmd); | |
92d7f7b0 | 2468 | memset(fp, 0, sizeof(FARP)); |
dea3101e | 2469 | lp = (uint32_t *) pcmd; |
2470 | *lp++ = be32_to_cpu(nportid); | |
2e0fef85 | 2471 | *lp++ = be32_to_cpu(vport->fc_myDID); |
dea3101e | 2472 | fp->Rflags = 0; |
2473 | fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); | |
2474 | ||
92d7f7b0 JS |
2475 | memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2476 | memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2477 | ondlp = lpfc_findnode_did(vport, nportid); |
e47c9093 | 2478 | if (ondlp && NLP_CHK_NODE_ACT(ondlp)) { |
dea3101e | 2479 | memcpy(&fp->OportName, &ondlp->nlp_portname, |
92d7f7b0 | 2480 | sizeof(struct lpfc_name)); |
dea3101e | 2481 | memcpy(&fp->OnodeName, &ondlp->nlp_nodename, |
92d7f7b0 | 2482 | sizeof(struct lpfc_name)); |
dea3101e | 2483 | } |
2484 | ||
858c9f6c JS |
2485 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2486 | "Issue FARPR: did:x%x", | |
2487 | ndlp->nlp_DID, 0, 0); | |
2488 | ||
dea3101e | 2489 | phba->fc_stat.elsXmitFARPR++; |
2490 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2491 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2492 | IOCB_ERROR) { | |
fa4066b6 JS |
2493 | /* The additional lpfc_nlp_put will cause the following |
2494 | * lpfc_els_free_iocb routine to trigger the release of | |
2495 | * the node. | |
2496 | */ | |
329f9bc7 | 2497 | lpfc_nlp_put(ndlp); |
dea3101e | 2498 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2499 | return 1; |
dea3101e | 2500 | } |
fa4066b6 JS |
2501 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2502 | * trigger the release of the node. | |
2503 | */ | |
329f9bc7 | 2504 | lpfc_nlp_put(ndlp); |
c9f8735b | 2505 | return 0; |
dea3101e | 2506 | } |
2507 | ||
e59058c4 | 2508 | /** |
3621a710 | 2509 | * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry |
e59058c4 JS |
2510 | * @vport: pointer to a host virtual N_Port data structure. |
2511 | * @nlp: pointer to a node-list data structure. | |
2512 | * | |
2513 | * This routine cancels the timer with a delayed IOCB-command retry for | |
2514 | * a @vport's @ndlp. It stops the timer for the delayed function retrial and | |
2515 | * removes the ELS retry event if it presents. In addition, if the | |
2516 | * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB | |
2517 | * commands are sent for the @vport's nodes that require issuing discovery | |
2518 | * ADISC. | |
2519 | **/ | |
fdcebe28 | 2520 | void |
2e0fef85 | 2521 | lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) |
fdcebe28 | 2522 | { |
2e0fef85 | 2523 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
e47c9093 | 2524 | struct lpfc_work_evt *evtp; |
2e0fef85 | 2525 | |
0d2b6b83 JS |
2526 | if (!(nlp->nlp_flag & NLP_DELAY_TMO)) |
2527 | return; | |
2e0fef85 | 2528 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2529 | nlp->nlp_flag &= ~NLP_DELAY_TMO; |
2e0fef85 | 2530 | spin_unlock_irq(shost->host_lock); |
fdcebe28 JS |
2531 | del_timer_sync(&nlp->nlp_delayfunc); |
2532 | nlp->nlp_last_elscmd = 0; | |
e47c9093 | 2533 | if (!list_empty(&nlp->els_retry_evt.evt_listp)) { |
fdcebe28 | 2534 | list_del_init(&nlp->els_retry_evt.evt_listp); |
e47c9093 JS |
2535 | /* Decrement nlp reference count held for the delayed retry */ |
2536 | evtp = &nlp->els_retry_evt; | |
2537 | lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1); | |
2538 | } | |
fdcebe28 | 2539 | if (nlp->nlp_flag & NLP_NPR_2B_DISC) { |
2e0fef85 | 2540 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2541 | nlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 JS |
2542 | spin_unlock_irq(shost->host_lock); |
2543 | if (vport->num_disc_nodes) { | |
0d2b6b83 JS |
2544 | if (vport->port_state < LPFC_VPORT_READY) { |
2545 | /* Check if there are more ADISCs to be sent */ | |
2546 | lpfc_more_adisc(vport); | |
0d2b6b83 JS |
2547 | } else { |
2548 | /* Check if there are more PLOGIs to be sent */ | |
2549 | lpfc_more_plogi(vport); | |
90160e01 JS |
2550 | if (vport->num_disc_nodes == 0) { |
2551 | spin_lock_irq(shost->host_lock); | |
2552 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
2553 | spin_unlock_irq(shost->host_lock); | |
2554 | lpfc_can_disctmo(vport); | |
2555 | lpfc_end_rscn(vport); | |
2556 | } | |
fdcebe28 JS |
2557 | } |
2558 | } | |
2559 | } | |
2560 | return; | |
2561 | } | |
2562 | ||
e59058c4 | 2563 | /** |
3621a710 | 2564 | * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer |
e59058c4 JS |
2565 | * @ptr: holder for the pointer to the timer function associated data (ndlp). |
2566 | * | |
2567 | * This routine is invoked by the ndlp delayed-function timer to check | |
2568 | * whether there is any pending ELS retry event(s) with the node. If not, it | |
2569 | * simply returns. Otherwise, if there is at least one ELS delayed event, it | |
2570 | * adds the delayed events to the HBA work list and invokes the | |
2571 | * lpfc_worker_wake_up() routine to wake up worker thread to process the | |
2572 | * event. Note that lpfc_nlp_get() is called before posting the event to | |
2573 | * the work list to hold reference count of ndlp so that it guarantees the | |
2574 | * reference to ndlp will still be available when the worker thread gets | |
2575 | * to the event associated with the ndlp. | |
2576 | **/ | |
dea3101e | 2577 | void |
2578 | lpfc_els_retry_delay(unsigned long ptr) | |
2579 | { | |
2e0fef85 JS |
2580 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr; |
2581 | struct lpfc_vport *vport = ndlp->vport; | |
2e0fef85 | 2582 | struct lpfc_hba *phba = vport->phba; |
92d7f7b0 | 2583 | unsigned long flags; |
2e0fef85 | 2584 | struct lpfc_work_evt *evtp = &ndlp->els_retry_evt; |
dea3101e | 2585 | |
92d7f7b0 | 2586 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e | 2587 | if (!list_empty(&evtp->evt_listp)) { |
92d7f7b0 | 2588 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e | 2589 | return; |
2590 | } | |
2591 | ||
fa4066b6 JS |
2592 | /* We need to hold the node by incrementing the reference |
2593 | * count until the queued work is done | |
2594 | */ | |
2595 | evtp->evt_arg1 = lpfc_nlp_get(ndlp); | |
5e9d9b82 JS |
2596 | if (evtp->evt_arg1) { |
2597 | evtp->evt = LPFC_EVT_ELS_RETRY; | |
2598 | list_add_tail(&evtp->evt_listp, &phba->work_list); | |
92d7f7b0 | 2599 | lpfc_worker_wake_up(phba); |
5e9d9b82 | 2600 | } |
92d7f7b0 | 2601 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e | 2602 | return; |
2603 | } | |
2604 | ||
e59058c4 | 2605 | /** |
3621a710 | 2606 | * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function |
e59058c4 JS |
2607 | * @ndlp: pointer to a node-list data structure. |
2608 | * | |
2609 | * This routine is the worker-thread handler for processing the @ndlp delayed | |
2610 | * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves | |
2611 | * the last ELS command from the associated ndlp and invokes the proper ELS | |
2612 | * function according to the delayed ELS command to retry the command. | |
2613 | **/ | |
dea3101e | 2614 | void |
2615 | lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) | |
2616 | { | |
2e0fef85 JS |
2617 | struct lpfc_vport *vport = ndlp->vport; |
2618 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2619 | uint32_t cmd, did, retry; | |
dea3101e | 2620 | |
2e0fef85 | 2621 | spin_lock_irq(shost->host_lock); |
5024ab17 JW |
2622 | did = ndlp->nlp_DID; |
2623 | cmd = ndlp->nlp_last_elscmd; | |
2624 | ndlp->nlp_last_elscmd = 0; | |
dea3101e | 2625 | |
2626 | if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { | |
2e0fef85 | 2627 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2628 | return; |
2629 | } | |
2630 | ||
2631 | ndlp->nlp_flag &= ~NLP_DELAY_TMO; | |
2e0fef85 | 2632 | spin_unlock_irq(shost->host_lock); |
1a169689 JS |
2633 | /* |
2634 | * If a discovery event readded nlp_delayfunc after timer | |
2635 | * firing and before processing the timer, cancel the | |
2636 | * nlp_delayfunc. | |
2637 | */ | |
2638 | del_timer_sync(&ndlp->nlp_delayfunc); | |
dea3101e | 2639 | retry = ndlp->nlp_retry; |
4d9ab994 | 2640 | ndlp->nlp_retry = 0; |
dea3101e | 2641 | |
2642 | switch (cmd) { | |
2643 | case ELS_CMD_FLOGI: | |
2e0fef85 | 2644 | lpfc_issue_els_flogi(vport, ndlp, retry); |
dea3101e | 2645 | break; |
2646 | case ELS_CMD_PLOGI: | |
2e0fef85 | 2647 | if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) { |
5024ab17 | 2648 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2649 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
6ad42535 | 2650 | } |
dea3101e | 2651 | break; |
2652 | case ELS_CMD_ADISC: | |
2e0fef85 | 2653 | if (!lpfc_issue_els_adisc(vport, ndlp, retry)) { |
5024ab17 | 2654 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2655 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
6ad42535 | 2656 | } |
dea3101e | 2657 | break; |
2658 | case ELS_CMD_PRLI: | |
2e0fef85 | 2659 | if (!lpfc_issue_els_prli(vport, ndlp, retry)) { |
5024ab17 | 2660 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2661 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
6ad42535 | 2662 | } |
dea3101e | 2663 | break; |
2664 | case ELS_CMD_LOGO: | |
2e0fef85 | 2665 | if (!lpfc_issue_els_logo(vport, ndlp, retry)) { |
5024ab17 | 2666 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2667 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
6ad42535 | 2668 | } |
dea3101e | 2669 | break; |
92d7f7b0 JS |
2670 | case ELS_CMD_FDISC: |
2671 | lpfc_issue_els_fdisc(vport, ndlp, retry); | |
2672 | break; | |
dea3101e | 2673 | } |
2674 | return; | |
2675 | } | |
2676 | ||
e59058c4 | 2677 | /** |
3621a710 | 2678 | * lpfc_els_retry - Make retry decision on an els command iocb |
e59058c4 JS |
2679 | * @phba: pointer to lpfc hba data structure. |
2680 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2681 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2682 | * | |
2683 | * This routine makes a retry decision on an ELS command IOCB, which has | |
2684 | * failed. The following ELS IOCBs use this function for retrying the command | |
2685 | * when previously issued command responsed with error status: FLOGI, PLOGI, | |
2686 | * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the | |
2687 | * returned error status, it makes the decision whether a retry shall be | |
2688 | * issued for the command, and whether a retry shall be made immediately or | |
2689 | * delayed. In the former case, the corresponding ELS command issuing-function | |
2690 | * is called to retry the command. In the later case, the ELS command shall | |
2691 | * be posted to the ndlp delayed event and delayed function timer set to the | |
2692 | * ndlp for the delayed command issusing. | |
2693 | * | |
2694 | * Return code | |
2695 | * 0 - No retry of els command is made | |
2696 | * 1 - Immediate or delayed retry of els command is made | |
2697 | **/ | |
dea3101e | 2698 | static int |
2e0fef85 JS |
2699 | lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2700 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2701 | { |
2e0fef85 JS |
2702 | struct lpfc_vport *vport = cmdiocb->vport; |
2703 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2704 | IOCB_t *irsp = &rspiocb->iocb; | |
2705 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2706 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
dea3101e | 2707 | uint32_t *elscmd; |
2708 | struct ls_rjt stat; | |
2e0fef85 | 2709 | int retry = 0, maxretry = lpfc_max_els_tries, delay = 0; |
98c9ea5c | 2710 | int logerr = 0; |
2e0fef85 | 2711 | uint32_t cmd = 0; |
488d1469 | 2712 | uint32_t did; |
dea3101e | 2713 | |
488d1469 | 2714 | |
dea3101e | 2715 | /* Note: context2 may be 0 for internal driver abort |
2716 | * of delays ELS command. | |
2717 | */ | |
2718 | ||
2719 | if (pcmd && pcmd->virt) { | |
2720 | elscmd = (uint32_t *) (pcmd->virt); | |
2721 | cmd = *elscmd++; | |
2722 | } | |
2723 | ||
e47c9093 | 2724 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
488d1469 JS |
2725 | did = ndlp->nlp_DID; |
2726 | else { | |
2727 | /* We should only hit this case for retrying PLOGI */ | |
2728 | did = irsp->un.elsreq64.remoteID; | |
2e0fef85 | 2729 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
2730 | if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp)) |
2731 | && (cmd != ELS_CMD_PLOGI)) | |
488d1469 JS |
2732 | return 1; |
2733 | } | |
2734 | ||
858c9f6c JS |
2735 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2736 | "Retry ELS: wd7:x%x wd4:x%x did:x%x", | |
2737 | *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID); | |
2738 | ||
dea3101e | 2739 | switch (irsp->ulpStatus) { |
2740 | case IOSTAT_FCP_RSP_ERROR: | |
2741 | case IOSTAT_REMOTE_STOP: | |
2742 | break; | |
2743 | ||
2744 | case IOSTAT_LOCAL_REJECT: | |
2745 | switch ((irsp->un.ulpWord[4] & 0xff)) { | |
2746 | case IOERR_LOOP_OPEN_FAILURE: | |
eaf15d5b JS |
2747 | if (cmd == ELS_CMD_FLOGI) { |
2748 | if (PCI_DEVICE_ID_HORNET == | |
2749 | phba->pcidev->device) { | |
2750 | phba->fc_topology = TOPOLOGY_LOOP; | |
2751 | phba->pport->fc_myDID = 0; | |
2752 | phba->alpa_map[0] = 0; | |
2753 | phba->alpa_map[1] = 0; | |
2754 | } | |
2755 | } | |
2e0fef85 | 2756 | if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0) |
92d7f7b0 | 2757 | delay = 1000; |
dea3101e | 2758 | retry = 1; |
2759 | break; | |
2760 | ||
92d7f7b0 | 2761 | case IOERR_ILLEGAL_COMMAND: |
7f5f3d0d JS |
2762 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2763 | "0124 Retry illegal cmd x%x " | |
2764 | "retry:x%x delay:x%x\n", | |
2765 | cmd, cmdiocb->retry, delay); | |
2766 | retry = 1; | |
2767 | /* All command's retry policy */ | |
2768 | maxretry = 8; | |
2769 | if (cmdiocb->retry > 2) | |
2770 | delay = 1000; | |
92d7f7b0 JS |
2771 | break; |
2772 | ||
dea3101e | 2773 | case IOERR_NO_RESOURCES: |
98c9ea5c | 2774 | logerr = 1; /* HBA out of resources */ |
858c9f6c JS |
2775 | retry = 1; |
2776 | if (cmdiocb->retry > 100) | |
2777 | delay = 100; | |
2778 | maxretry = 250; | |
2779 | break; | |
2780 | ||
2781 | case IOERR_ILLEGAL_FRAME: | |
92d7f7b0 | 2782 | delay = 100; |
dea3101e | 2783 | retry = 1; |
2784 | break; | |
2785 | ||
858c9f6c | 2786 | case IOERR_SEQUENCE_TIMEOUT: |
dea3101e | 2787 | case IOERR_INVALID_RPI: |
2788 | retry = 1; | |
2789 | break; | |
2790 | } | |
2791 | break; | |
2792 | ||
2793 | case IOSTAT_NPORT_RJT: | |
2794 | case IOSTAT_FABRIC_RJT: | |
2795 | if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
2796 | retry = 1; | |
2797 | break; | |
2798 | } | |
2799 | break; | |
2800 | ||
2801 | case IOSTAT_NPORT_BSY: | |
2802 | case IOSTAT_FABRIC_BSY: | |
98c9ea5c | 2803 | logerr = 1; /* Fabric / Remote NPort out of resources */ |
dea3101e | 2804 | retry = 1; |
2805 | break; | |
2806 | ||
2807 | case IOSTAT_LS_RJT: | |
2808 | stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]); | |
2809 | /* Added for Vendor specifc support | |
2810 | * Just keep retrying for these Rsn / Exp codes | |
2811 | */ | |
2812 | switch (stat.un.b.lsRjtRsnCode) { | |
2813 | case LSRJT_UNABLE_TPC: | |
2814 | if (stat.un.b.lsRjtRsnCodeExp == | |
2815 | LSEXP_CMD_IN_PROGRESS) { | |
2816 | if (cmd == ELS_CMD_PLOGI) { | |
92d7f7b0 | 2817 | delay = 1000; |
dea3101e | 2818 | maxretry = 48; |
2819 | } | |
2820 | retry = 1; | |
2821 | break; | |
2822 | } | |
ffc95493 JS |
2823 | if (stat.un.b.lsRjtRsnCodeExp == |
2824 | LSEXP_CANT_GIVE_DATA) { | |
2825 | if (cmd == ELS_CMD_PLOGI) { | |
2826 | delay = 1000; | |
2827 | maxretry = 48; | |
2828 | } | |
2829 | retry = 1; | |
2830 | break; | |
2831 | } | |
dea3101e | 2832 | if (cmd == ELS_CMD_PLOGI) { |
92d7f7b0 | 2833 | delay = 1000; |
dea3101e | 2834 | maxretry = lpfc_max_els_tries + 1; |
2835 | retry = 1; | |
2836 | break; | |
2837 | } | |
92d7f7b0 JS |
2838 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
2839 | (cmd == ELS_CMD_FDISC) && | |
2840 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){ | |
e8b62011 JS |
2841 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2842 | "0125 FDISC Failed (x%x). " | |
2843 | "Fabric out of resources\n", | |
2844 | stat.un.lsRjtError); | |
92d7f7b0 JS |
2845 | lpfc_vport_set_state(vport, |
2846 | FC_VPORT_NO_FABRIC_RSCS); | |
2847 | } | |
dea3101e | 2848 | break; |
2849 | ||
2850 | case LSRJT_LOGICAL_BSY: | |
858c9f6c JS |
2851 | if ((cmd == ELS_CMD_PLOGI) || |
2852 | (cmd == ELS_CMD_PRLI)) { | |
92d7f7b0 | 2853 | delay = 1000; |
dea3101e | 2854 | maxretry = 48; |
92d7f7b0 | 2855 | } else if (cmd == ELS_CMD_FDISC) { |
51ef4c26 JS |
2856 | /* FDISC retry policy */ |
2857 | maxretry = 48; | |
2858 | if (cmdiocb->retry >= 32) | |
2859 | delay = 1000; | |
dea3101e | 2860 | } |
2861 | retry = 1; | |
2862 | break; | |
92d7f7b0 JS |
2863 | |
2864 | case LSRJT_LOGICAL_ERR: | |
7f5f3d0d JS |
2865 | /* There are some cases where switches return this |
2866 | * error when they are not ready and should be returning | |
2867 | * Logical Busy. We should delay every time. | |
2868 | */ | |
2869 | if (cmd == ELS_CMD_FDISC && | |
2870 | stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) { | |
2871 | maxretry = 3; | |
2872 | delay = 1000; | |
2873 | retry = 1; | |
2874 | break; | |
2875 | } | |
92d7f7b0 JS |
2876 | case LSRJT_PROTOCOL_ERR: |
2877 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
2878 | (cmd == ELS_CMD_FDISC) && | |
2879 | ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) || | |
2880 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID)) | |
2881 | ) { | |
e8b62011 | 2882 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 2883 | "0122 FDISC Failed (x%x). " |
e8b62011 JS |
2884 | "Fabric Detected Bad WWN\n", |
2885 | stat.un.lsRjtError); | |
92d7f7b0 JS |
2886 | lpfc_vport_set_state(vport, |
2887 | FC_VPORT_FABRIC_REJ_WWN); | |
2888 | } | |
2889 | break; | |
dea3101e | 2890 | } |
2891 | break; | |
2892 | ||
2893 | case IOSTAT_INTERMED_RSP: | |
2894 | case IOSTAT_BA_RJT: | |
2895 | break; | |
2896 | ||
2897 | default: | |
2898 | break; | |
2899 | } | |
2900 | ||
488d1469 | 2901 | if (did == FDMI_DID) |
dea3101e | 2902 | retry = 1; |
dea3101e | 2903 | |
695a814e | 2904 | if (((cmd == ELS_CMD_FLOGI) || (cmd == ELS_CMD_FDISC)) && |
1b32f6aa JS |
2905 | (phba->fc_topology != TOPOLOGY_LOOP) && |
2906 | !lpfc_error_lost_link(irsp)) { | |
98c9ea5c JS |
2907 | /* FLOGI retry policy */ |
2908 | retry = 1; | |
6669f9bb JS |
2909 | /* retry forever */ |
2910 | maxretry = 0; | |
2911 | if (cmdiocb->retry >= 100) | |
2912 | delay = 5000; | |
2913 | else if (cmdiocb->retry >= 32) | |
98c9ea5c JS |
2914 | delay = 1000; |
2915 | } | |
2916 | ||
6669f9bb JS |
2917 | cmdiocb->retry++; |
2918 | if (maxretry && (cmdiocb->retry >= maxretry)) { | |
dea3101e | 2919 | phba->fc_stat.elsRetryExceeded++; |
2920 | retry = 0; | |
2921 | } | |
2922 | ||
ed957684 JS |
2923 | if ((vport->load_flag & FC_UNLOADING) != 0) |
2924 | retry = 0; | |
2925 | ||
dea3101e | 2926 | if (retry) { |
38b92ef8 JS |
2927 | if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) { |
2928 | /* Stop retrying PLOGI and FDISC if in FCF discovery */ | |
2929 | if (phba->fcf.fcf_flag & FCF_DISCOVERY) { | |
2930 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
2931 | "2849 Stop retry ELS command " | |
2932 | "x%x to remote NPORT x%x, " | |
2933 | "Data: x%x x%x\n", cmd, did, | |
2934 | cmdiocb->retry, delay); | |
2935 | return 0; | |
2936 | } | |
2937 | } | |
dea3101e | 2938 | |
2939 | /* Retry ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
2940 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2941 | "0107 Retry ELS command x%x to remote " | |
2942 | "NPORT x%x Data: x%x x%x\n", | |
2943 | cmd, did, cmdiocb->retry, delay); | |
dea3101e | 2944 | |
858c9f6c JS |
2945 | if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) && |
2946 | ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || | |
2947 | ((irsp->un.ulpWord[4] & 0xff) != IOERR_NO_RESOURCES))) { | |
2948 | /* Don't reset timer for no resources */ | |
2949 | ||
dea3101e | 2950 | /* If discovery / RSCN timer is running, reset it */ |
2e0fef85 | 2951 | if (timer_pending(&vport->fc_disctmo) || |
92d7f7b0 | 2952 | (vport->fc_flag & FC_RSCN_MODE)) |
2e0fef85 | 2953 | lpfc_set_disctmo(vport); |
dea3101e | 2954 | } |
2955 | ||
2956 | phba->fc_stat.elsXmitRetry++; | |
58da1ffb | 2957 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) { |
dea3101e | 2958 | phba->fc_stat.elsDelayRetry++; |
2959 | ndlp->nlp_retry = cmdiocb->retry; | |
2960 | ||
92d7f7b0 JS |
2961 | /* delay is specified in milliseconds */ |
2962 | mod_timer(&ndlp->nlp_delayfunc, | |
2963 | jiffies + msecs_to_jiffies(delay)); | |
2e0fef85 | 2964 | spin_lock_irq(shost->host_lock); |
dea3101e | 2965 | ndlp->nlp_flag |= NLP_DELAY_TMO; |
2e0fef85 | 2966 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2967 | |
5024ab17 | 2968 | ndlp->nlp_prev_state = ndlp->nlp_state; |
858c9f6c JS |
2969 | if (cmd == ELS_CMD_PRLI) |
2970 | lpfc_nlp_set_state(vport, ndlp, | |
2971 | NLP_STE_REG_LOGIN_ISSUE); | |
2972 | else | |
2973 | lpfc_nlp_set_state(vport, ndlp, | |
2974 | NLP_STE_NPR_NODE); | |
dea3101e | 2975 | ndlp->nlp_last_elscmd = cmd; |
2976 | ||
c9f8735b | 2977 | return 1; |
dea3101e | 2978 | } |
2979 | switch (cmd) { | |
2980 | case ELS_CMD_FLOGI: | |
2e0fef85 | 2981 | lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry); |
c9f8735b | 2982 | return 1; |
92d7f7b0 JS |
2983 | case ELS_CMD_FDISC: |
2984 | lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry); | |
2985 | return 1; | |
dea3101e | 2986 | case ELS_CMD_PLOGI: |
58da1ffb | 2987 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
488d1469 | 2988 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2989 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 2990 | NLP_STE_PLOGI_ISSUE); |
488d1469 | 2991 | } |
2e0fef85 | 2992 | lpfc_issue_els_plogi(vport, did, cmdiocb->retry); |
c9f8735b | 2993 | return 1; |
dea3101e | 2994 | case ELS_CMD_ADISC: |
5024ab17 | 2995 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
2996 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
2997 | lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 2998 | return 1; |
dea3101e | 2999 | case ELS_CMD_PRLI: |
5024ab17 | 3000 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3001 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
3002 | lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 3003 | return 1; |
dea3101e | 3004 | case ELS_CMD_LOGO: |
5024ab17 | 3005 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3006 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
3007 | lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 3008 | return 1; |
dea3101e | 3009 | } |
3010 | } | |
dea3101e | 3011 | /* No retry ELS command <elsCmd> to remote NPORT <did> */ |
98c9ea5c JS |
3012 | if (logerr) { |
3013 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3014 | "0137 No retry ELS command x%x to remote " | |
3015 | "NPORT x%x: Out of Resources: Error:x%x/%x\n", | |
3016 | cmd, did, irsp->ulpStatus, | |
3017 | irsp->un.ulpWord[4]); | |
3018 | } | |
3019 | else { | |
3020 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
a58cbd52 JS |
3021 | "0108 No retry ELS command x%x to remote " |
3022 | "NPORT x%x Retried:%d Error:x%x/%x\n", | |
3023 | cmd, did, cmdiocb->retry, irsp->ulpStatus, | |
3024 | irsp->un.ulpWord[4]); | |
98c9ea5c | 3025 | } |
c9f8735b | 3026 | return 0; |
dea3101e | 3027 | } |
3028 | ||
e59058c4 | 3029 | /** |
3621a710 | 3030 | * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb |
e59058c4 JS |
3031 | * @phba: pointer to lpfc hba data structure. |
3032 | * @buf_ptr1: pointer to the lpfc DMA buffer data structure. | |
3033 | * | |
3034 | * This routine releases the lpfc DMA (Direct Memory Access) buffer(s) | |
3035 | * associated with a command IOCB back to the lpfc DMA buffer pool. It first | |
3036 | * checks to see whether there is a lpfc DMA buffer associated with the | |
3037 | * response of the command IOCB. If so, it will be released before releasing | |
3038 | * the lpfc DMA buffer associated with the IOCB itself. | |
3039 | * | |
3040 | * Return code | |
3041 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
3042 | **/ | |
09372820 | 3043 | static int |
87af33fe JS |
3044 | lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1) |
3045 | { | |
3046 | struct lpfc_dmabuf *buf_ptr; | |
3047 | ||
e59058c4 | 3048 | /* Free the response before processing the command. */ |
87af33fe JS |
3049 | if (!list_empty(&buf_ptr1->list)) { |
3050 | list_remove_head(&buf_ptr1->list, buf_ptr, | |
3051 | struct lpfc_dmabuf, | |
3052 | list); | |
3053 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
3054 | kfree(buf_ptr); | |
3055 | } | |
3056 | lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); | |
3057 | kfree(buf_ptr1); | |
3058 | return 0; | |
3059 | } | |
3060 | ||
e59058c4 | 3061 | /** |
3621a710 | 3062 | * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl |
e59058c4 JS |
3063 | * @phba: pointer to lpfc hba data structure. |
3064 | * @buf_ptr: pointer to the lpfc dma buffer data structure. | |
3065 | * | |
3066 | * This routine releases the lpfc Direct Memory Access (DMA) buffer | |
3067 | * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer | |
3068 | * pool. | |
3069 | * | |
3070 | * Return code | |
3071 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
3072 | **/ | |
09372820 | 3073 | static int |
87af33fe JS |
3074 | lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr) |
3075 | { | |
3076 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
3077 | kfree(buf_ptr); | |
3078 | return 0; | |
3079 | } | |
3080 | ||
e59058c4 | 3081 | /** |
3621a710 | 3082 | * lpfc_els_free_iocb - Free a command iocb and its associated resources |
e59058c4 JS |
3083 | * @phba: pointer to lpfc hba data structure. |
3084 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
3085 | * | |
3086 | * This routine frees a command IOCB and its associated resources. The | |
3087 | * command IOCB data structure contains the reference to various associated | |
3088 | * resources, these fields must be set to NULL if the associated reference | |
3089 | * not present: | |
3090 | * context1 - reference to ndlp | |
3091 | * context2 - reference to cmd | |
3092 | * context2->next - reference to rsp | |
3093 | * context3 - reference to bpl | |
3094 | * | |
3095 | * It first properly decrements the reference count held on ndlp for the | |
3096 | * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not | |
3097 | * set, it invokes the lpfc_els_free_data() routine to release the Direct | |
3098 | * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it | |
3099 | * adds the DMA buffer the @phba data structure for the delayed release. | |
3100 | * If reference to the Buffer Pointer List (BPL) is present, the | |
3101 | * lpfc_els_free_bpl() routine is invoked to release the DMA memory | |
3102 | * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is | |
3103 | * invoked to release the IOCB data structure back to @phba IOCBQ list. | |
3104 | * | |
3105 | * Return code | |
3106 | * 0 - Success (currently, always return 0) | |
3107 | **/ | |
dea3101e | 3108 | int |
329f9bc7 | 3109 | lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) |
dea3101e | 3110 | { |
3111 | struct lpfc_dmabuf *buf_ptr, *buf_ptr1; | |
a8adb832 JS |
3112 | struct lpfc_nodelist *ndlp; |
3113 | ||
3114 | ndlp = (struct lpfc_nodelist *)elsiocb->context1; | |
3115 | if (ndlp) { | |
3116 | if (ndlp->nlp_flag & NLP_DEFER_RM) { | |
3117 | lpfc_nlp_put(ndlp); | |
dea3101e | 3118 | |
a8adb832 JS |
3119 | /* If the ndlp is not being used by another discovery |
3120 | * thread, free it. | |
3121 | */ | |
3122 | if (!lpfc_nlp_not_used(ndlp)) { | |
3123 | /* If ndlp is being used by another discovery | |
3124 | * thread, just clear NLP_DEFER_RM | |
3125 | */ | |
3126 | ndlp->nlp_flag &= ~NLP_DEFER_RM; | |
3127 | } | |
3128 | } | |
3129 | else | |
3130 | lpfc_nlp_put(ndlp); | |
329f9bc7 JS |
3131 | elsiocb->context1 = NULL; |
3132 | } | |
dea3101e | 3133 | /* context2 = cmd, context2->next = rsp, context3 = bpl */ |
3134 | if (elsiocb->context2) { | |
0ff10d46 JS |
3135 | if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) { |
3136 | /* Firmware could still be in progress of DMAing | |
3137 | * payload, so don't free data buffer till after | |
3138 | * a hbeat. | |
3139 | */ | |
3140 | elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE; | |
3141 | buf_ptr = elsiocb->context2; | |
3142 | elsiocb->context2 = NULL; | |
3143 | if (buf_ptr) { | |
3144 | buf_ptr1 = NULL; | |
3145 | spin_lock_irq(&phba->hbalock); | |
3146 | if (!list_empty(&buf_ptr->list)) { | |
3147 | list_remove_head(&buf_ptr->list, | |
3148 | buf_ptr1, struct lpfc_dmabuf, | |
3149 | list); | |
3150 | INIT_LIST_HEAD(&buf_ptr1->list); | |
3151 | list_add_tail(&buf_ptr1->list, | |
3152 | &phba->elsbuf); | |
3153 | phba->elsbuf_cnt++; | |
3154 | } | |
3155 | INIT_LIST_HEAD(&buf_ptr->list); | |
3156 | list_add_tail(&buf_ptr->list, &phba->elsbuf); | |
3157 | phba->elsbuf_cnt++; | |
3158 | spin_unlock_irq(&phba->hbalock); | |
3159 | } | |
3160 | } else { | |
3161 | buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2; | |
3162 | lpfc_els_free_data(phba, buf_ptr1); | |
3163 | } | |
dea3101e | 3164 | } |
3165 | ||
3166 | if (elsiocb->context3) { | |
3167 | buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3; | |
87af33fe | 3168 | lpfc_els_free_bpl(phba, buf_ptr); |
dea3101e | 3169 | } |
604a3e30 | 3170 | lpfc_sli_release_iocbq(phba, elsiocb); |
dea3101e | 3171 | return 0; |
3172 | } | |
3173 | ||
e59058c4 | 3174 | /** |
3621a710 | 3175 | * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response |
e59058c4 JS |
3176 | * @phba: pointer to lpfc hba data structure. |
3177 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3178 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3179 | * | |
3180 | * This routine is the completion callback function to the Logout (LOGO) | |
3181 | * Accept (ACC) Response ELS command. This routine is invoked to indicate | |
3182 | * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to | |
3183 | * release the ndlp if it has the last reference remaining (reference count | |
3184 | * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1 | |
3185 | * field to NULL to inform the following lpfc_els_free_iocb() routine no | |
3186 | * ndlp reference count needs to be decremented. Otherwise, the ndlp | |
3187 | * reference use-count shall be decremented by the lpfc_els_free_iocb() | |
3188 | * routine. Finally, the lpfc_els_free_iocb() is invoked to release the | |
3189 | * IOCB data structure. | |
3190 | **/ | |
dea3101e | 3191 | static void |
2e0fef85 JS |
3192 | lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
3193 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 3194 | { |
2e0fef85 JS |
3195 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
3196 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c JS |
3197 | IOCB_t *irsp; |
3198 | ||
3199 | irsp = &rspiocb->iocb; | |
3200 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3201 | "ACC LOGO cmpl: status:x%x/x%x did:x%x", | |
3202 | irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID); | |
dea3101e | 3203 | /* ACC to LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
3204 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3205 | "0109 ACC to LOGO completes to NPort x%x " | |
3206 | "Data: x%x x%x x%x\n", | |
3207 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3208 | ndlp->nlp_rpi); | |
87af33fe JS |
3209 | |
3210 | if (ndlp->nlp_state == NLP_STE_NPR_NODE) { | |
3211 | /* NPort Recovery mode or node is just allocated */ | |
3212 | if (!lpfc_nlp_not_used(ndlp)) { | |
3213 | /* If the ndlp is being used by another discovery | |
3214 | * thread, just unregister the RPI. | |
3215 | */ | |
3216 | lpfc_unreg_rpi(vport, ndlp); | |
fa4066b6 JS |
3217 | } else { |
3218 | /* Indicate the node has already released, should | |
3219 | * not reference to it from within lpfc_els_free_iocb. | |
3220 | */ | |
3221 | cmdiocb->context1 = NULL; | |
87af33fe | 3222 | } |
dea3101e | 3223 | } |
3224 | lpfc_els_free_iocb(phba, cmdiocb); | |
3225 | return; | |
3226 | } | |
3227 | ||
e59058c4 | 3228 | /** |
3621a710 | 3229 | * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd |
e59058c4 JS |
3230 | * @phba: pointer to lpfc hba data structure. |
3231 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
3232 | * | |
3233 | * This routine is the completion callback function for unregister default | |
3234 | * RPI (Remote Port Index) mailbox command to the @phba. It simply releases | |
3235 | * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and | |
3236 | * decrements the ndlp reference count held for this completion callback | |
3237 | * function. After that, it invokes the lpfc_nlp_not_used() to check | |
3238 | * whether there is only one reference left on the ndlp. If so, it will | |
3239 | * perform one more decrement and trigger the release of the ndlp. | |
3240 | **/ | |
858c9f6c JS |
3241 | void |
3242 | lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
3243 | { | |
3244 | struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); | |
3245 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
3246 | ||
6fb120a7 JS |
3247 | /* |
3248 | * This routine is used to register and unregister in previous SLI | |
3249 | * modes. | |
3250 | */ | |
3251 | if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) && | |
3252 | (phba->sli_rev == LPFC_SLI_REV4)) | |
3253 | lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi); | |
3254 | ||
858c9f6c | 3255 | pmb->context1 = NULL; |
d439d286 JS |
3256 | pmb->context2 = NULL; |
3257 | ||
858c9f6c JS |
3258 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
3259 | kfree(mp); | |
3260 | mempool_free(pmb, phba->mbox_mem_pool); | |
58da1ffb | 3261 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
a8adb832 | 3262 | lpfc_nlp_put(ndlp); |
a8adb832 JS |
3263 | /* This is the end of the default RPI cleanup logic for this |
3264 | * ndlp. If no other discovery threads are using this ndlp. | |
3265 | * we should free all resources associated with it. | |
3266 | */ | |
3267 | lpfc_nlp_not_used(ndlp); | |
3268 | } | |
3772a991 | 3269 | |
858c9f6c JS |
3270 | return; |
3271 | } | |
3272 | ||
e59058c4 | 3273 | /** |
3621a710 | 3274 | * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd |
e59058c4 JS |
3275 | * @phba: pointer to lpfc hba data structure. |
3276 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3277 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3278 | * | |
3279 | * This routine is the completion callback function for ELS Response IOCB | |
3280 | * command. In normal case, this callback function just properly sets the | |
3281 | * nlp_flag bitmap in the ndlp data structure, if the mbox command reference | |
3282 | * field in the command IOCB is not NULL, the referred mailbox command will | |
3283 | * be send out, and then invokes the lpfc_els_free_iocb() routine to release | |
3284 | * the IOCB. Under error conditions, such as when a LS_RJT is returned or a | |
3285 | * link down event occurred during the discovery, the lpfc_nlp_not_used() | |
3286 | * routine shall be invoked trying to release the ndlp if no other threads | |
3287 | * are currently referring it. | |
3288 | **/ | |
dea3101e | 3289 | static void |
858c9f6c | 3290 | lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
329f9bc7 | 3291 | struct lpfc_iocbq *rspiocb) |
dea3101e | 3292 | { |
2e0fef85 JS |
3293 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
3294 | struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL; | |
3295 | struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL; | |
87af33fe JS |
3296 | IOCB_t *irsp; |
3297 | uint8_t *pcmd; | |
dea3101e | 3298 | LPFC_MBOXQ_t *mbox = NULL; |
2e0fef85 | 3299 | struct lpfc_dmabuf *mp = NULL; |
87af33fe | 3300 | uint32_t ls_rjt = 0; |
dea3101e | 3301 | |
33ccf8d1 JS |
3302 | irsp = &rspiocb->iocb; |
3303 | ||
dea3101e | 3304 | if (cmdiocb->context_un.mbox) |
3305 | mbox = cmdiocb->context_un.mbox; | |
3306 | ||
fa4066b6 JS |
3307 | /* First determine if this is a LS_RJT cmpl. Note, this callback |
3308 | * function can have cmdiocb->contest1 (ndlp) field set to NULL. | |
3309 | */ | |
87af33fe | 3310 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); |
58da1ffb JS |
3311 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3312 | (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) { | |
fa4066b6 | 3313 | /* A LS_RJT associated with Default RPI cleanup has its own |
3ad2f3fb | 3314 | * separate code path. |
87af33fe JS |
3315 | */ |
3316 | if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
3317 | ls_rjt = 1; | |
3318 | } | |
3319 | ||
dea3101e | 3320 | /* Check to see if link went down during discovery */ |
58da1ffb | 3321 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) { |
dea3101e | 3322 | if (mbox) { |
14691150 JS |
3323 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3324 | if (mp) { | |
3325 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3326 | kfree(mp); | |
3327 | } | |
329f9bc7 | 3328 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 3329 | } |
58da1ffb JS |
3330 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3331 | (ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
fa4066b6 | 3332 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3333 | ndlp = NULL; |
fa4066b6 JS |
3334 | /* Indicate the node has already released, |
3335 | * should not reference to it from within | |
3336 | * the routine lpfc_els_free_iocb. | |
3337 | */ | |
3338 | cmdiocb->context1 = NULL; | |
3339 | } | |
dea3101e | 3340 | goto out; |
3341 | } | |
3342 | ||
858c9f6c | 3343 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
51ef4c26 | 3344 | "ELS rsp cmpl: status:x%x/x%x did:x%x", |
858c9f6c | 3345 | irsp->ulpStatus, irsp->un.ulpWord[4], |
51ef4c26 | 3346 | cmdiocb->iocb.un.elsreq64.remoteID); |
dea3101e | 3347 | /* ELS response tag <ulpIoTag> completes */ |
e8b62011 JS |
3348 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3349 | "0110 ELS response tag x%x completes " | |
3350 | "Data: x%x x%x x%x x%x x%x x%x x%x\n", | |
3351 | cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus, | |
3352 | rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout, | |
3353 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3354 | ndlp->nlp_rpi); | |
dea3101e | 3355 | if (mbox) { |
3356 | if ((rspiocb->iocb.ulpStatus == 0) | |
3357 | && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) { | |
2e0fef85 | 3358 | lpfc_unreg_rpi(vport, ndlp); |
e47c9093 JS |
3359 | /* Increment reference count to ndlp to hold the |
3360 | * reference to ndlp for the callback function. | |
3361 | */ | |
329f9bc7 | 3362 | mbox->context2 = lpfc_nlp_get(ndlp); |
2e0fef85 | 3363 | mbox->vport = vport; |
858c9f6c JS |
3364 | if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) { |
3365 | mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; | |
3366 | mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; | |
3367 | } | |
3368 | else { | |
3369 | mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; | |
3370 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
3371 | lpfc_nlp_set_state(vport, ndlp, | |
2e0fef85 | 3372 | NLP_STE_REG_LOGIN_ISSUE); |
858c9f6c | 3373 | } |
0b727fea | 3374 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
e47c9093 | 3375 | != MBX_NOT_FINISHED) |
dea3101e | 3376 | goto out; |
e47c9093 JS |
3377 | else |
3378 | /* Decrement the ndlp reference count we | |
3379 | * set for this failed mailbox command. | |
3380 | */ | |
3381 | lpfc_nlp_put(ndlp); | |
98c9ea5c JS |
3382 | |
3383 | /* ELS rsp: Cannot issue reg_login for <NPortid> */ | |
3384 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3385 | "0138 ELS rsp: Cannot issue reg_login for x%x " | |
3386 | "Data: x%x x%x x%x\n", | |
3387 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3388 | ndlp->nlp_rpi); | |
3389 | ||
fa4066b6 | 3390 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3391 | ndlp = NULL; |
fa4066b6 JS |
3392 | /* Indicate node has already been released, |
3393 | * should not reference to it from within | |
3394 | * the routine lpfc_els_free_iocb. | |
3395 | */ | |
3396 | cmdiocb->context1 = NULL; | |
3397 | } | |
dea3101e | 3398 | } else { |
858c9f6c JS |
3399 | /* Do not drop node for lpfc_els_abort'ed ELS cmds */ |
3400 | if (!lpfc_error_lost_link(irsp) && | |
3401 | ndlp->nlp_flag & NLP_ACC_REGLOGIN) { | |
fa4066b6 | 3402 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3403 | ndlp = NULL; |
fa4066b6 JS |
3404 | /* Indicate node has already been |
3405 | * released, should not reference | |
3406 | * to it from within the routine | |
3407 | * lpfc_els_free_iocb. | |
3408 | */ | |
3409 | cmdiocb->context1 = NULL; | |
3410 | } | |
dea3101e | 3411 | } |
3412 | } | |
14691150 JS |
3413 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3414 | if (mp) { | |
3415 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3416 | kfree(mp); | |
3417 | } | |
3418 | mempool_free(mbox, phba->mbox_mem_pool); | |
dea3101e | 3419 | } |
3420 | out: | |
58da1ffb | 3421 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
2e0fef85 | 3422 | spin_lock_irq(shost->host_lock); |
858c9f6c | 3423 | ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI); |
2e0fef85 | 3424 | spin_unlock_irq(shost->host_lock); |
87af33fe JS |
3425 | |
3426 | /* If the node is not being used by another discovery thread, | |
3427 | * and we are sending a reject, we are done with it. | |
3428 | * Release driver reference count here and free associated | |
3429 | * resources. | |
3430 | */ | |
3431 | if (ls_rjt) | |
fa4066b6 JS |
3432 | if (lpfc_nlp_not_used(ndlp)) |
3433 | /* Indicate node has already been released, | |
3434 | * should not reference to it from within | |
3435 | * the routine lpfc_els_free_iocb. | |
3436 | */ | |
3437 | cmdiocb->context1 = NULL; | |
dea3101e | 3438 | } |
87af33fe | 3439 | |
dea3101e | 3440 | lpfc_els_free_iocb(phba, cmdiocb); |
3441 | return; | |
3442 | } | |
3443 | ||
e59058c4 | 3444 | /** |
3621a710 | 3445 | * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command |
e59058c4 JS |
3446 | * @vport: pointer to a host virtual N_Port data structure. |
3447 | * @flag: the els command code to be accepted. | |
3448 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3449 | * @ndlp: pointer to a node-list data structure. | |
3450 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3451 | * | |
3452 | * This routine prepares and issues an Accept (ACC) response IOCB | |
3453 | * command. It uses the @flag to properly set up the IOCB field for the | |
3454 | * specific ACC response command to be issued and invokes the | |
3455 | * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a | |
3456 | * @mbox pointer is passed in, it will be put into the context_un.mbox | |
3457 | * field of the IOCB for the completion callback function to issue the | |
3458 | * mailbox command to the HBA later when callback is invoked. | |
3459 | * | |
3460 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3461 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3462 | * will be stored into the context1 field of the IOCB for the completion | |
3463 | * callback function to the corresponding response ELS IOCB command. | |
3464 | * | |
3465 | * Return code | |
3466 | * 0 - Successfully issued acc response | |
3467 | * 1 - Failed to issue acc response | |
3468 | **/ | |
dea3101e | 3469 | int |
2e0fef85 JS |
3470 | lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, |
3471 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, | |
51ef4c26 | 3472 | LPFC_MBOXQ_t *mbox) |
dea3101e | 3473 | { |
2e0fef85 JS |
3474 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
3475 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 3476 | IOCB_t *icmd; |
3477 | IOCB_t *oldcmd; | |
3478 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 3479 | struct lpfc_sli *psli; |
3480 | uint8_t *pcmd; | |
3481 | uint16_t cmdsize; | |
3482 | int rc; | |
82d9a2a2 | 3483 | ELS_PKT *els_pkt_ptr; |
dea3101e | 3484 | |
3485 | psli = &phba->sli; | |
dea3101e | 3486 | oldcmd = &oldiocb->iocb; |
3487 | ||
3488 | switch (flag) { | |
3489 | case ELS_CMD_ACC: | |
92d7f7b0 | 3490 | cmdsize = sizeof(uint32_t); |
2e0fef85 JS |
3491 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3492 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3493 | if (!elsiocb) { |
2e0fef85 | 3494 | spin_lock_irq(shost->host_lock); |
5024ab17 | 3495 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3496 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 3497 | return 1; |
dea3101e | 3498 | } |
2e0fef85 | 3499 | |
dea3101e | 3500 | icmd = &elsiocb->iocb; |
3501 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3502 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3503 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3504 | pcmd += sizeof(uint32_t); |
858c9f6c JS |
3505 | |
3506 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3507 | "Issue ACC: did:x%x flg:x%x", | |
3508 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e | 3509 | break; |
3510 | case ELS_CMD_PLOGI: | |
92d7f7b0 | 3511 | cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t)); |
2e0fef85 JS |
3512 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3513 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3514 | if (!elsiocb) |
c9f8735b | 3515 | return 1; |
488d1469 | 3516 | |
dea3101e | 3517 | icmd = &elsiocb->iocb; |
3518 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3519 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3520 | ||
3521 | if (mbox) | |
3522 | elsiocb->context_un.mbox = mbox; | |
3523 | ||
3524 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 JS |
3525 | pcmd += sizeof(uint32_t); |
3526 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
858c9f6c JS |
3527 | |
3528 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3529 | "Issue ACC PLOGI: did:x%x flg:x%x", | |
3530 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e | 3531 | break; |
82d9a2a2 | 3532 | case ELS_CMD_PRLO: |
92d7f7b0 | 3533 | cmdsize = sizeof(uint32_t) + sizeof(PRLO); |
2e0fef85 | 3534 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
82d9a2a2 JS |
3535 | ndlp, ndlp->nlp_DID, ELS_CMD_PRLO); |
3536 | if (!elsiocb) | |
3537 | return 1; | |
3538 | ||
3539 | icmd = &elsiocb->iocb; | |
3540 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3541 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3542 | ||
3543 | memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt, | |
92d7f7b0 | 3544 | sizeof(uint32_t) + sizeof(PRLO)); |
82d9a2a2 JS |
3545 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC; |
3546 | els_pkt_ptr = (ELS_PKT *) pcmd; | |
3547 | els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED; | |
858c9f6c JS |
3548 | |
3549 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3550 | "Issue ACC PRLO: did:x%x flg:x%x", | |
3551 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
82d9a2a2 | 3552 | break; |
dea3101e | 3553 | default: |
c9f8735b | 3554 | return 1; |
dea3101e | 3555 | } |
dea3101e | 3556 | /* Xmit ELS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3557 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3558 | "0128 Xmit ELS ACC response tag x%x, XRI: x%x, " | |
3559 | "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x\n", | |
3560 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3561 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3562 | ndlp->nlp_rpi); | |
dea3101e | 3563 | if (ndlp->nlp_flag & NLP_LOGO_ACC) { |
2e0fef85 | 3564 | spin_lock_irq(shost->host_lock); |
c9f8735b | 3565 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3566 | spin_unlock_irq(shost->host_lock); |
dea3101e | 3567 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc; |
3568 | } else { | |
858c9f6c | 3569 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 3570 | } |
3571 | ||
3572 | phba->fc_stat.elsXmitACC++; | |
3772a991 | 3573 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e | 3574 | if (rc == IOCB_ERROR) { |
3575 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3576 | return 1; |
dea3101e | 3577 | } |
c9f8735b | 3578 | return 0; |
dea3101e | 3579 | } |
3580 | ||
e59058c4 | 3581 | /** |
3621a710 | 3582 | * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command |
e59058c4 JS |
3583 | * @vport: pointer to a virtual N_Port data structure. |
3584 | * @rejectError: | |
3585 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3586 | * @ndlp: pointer to a node-list data structure. | |
3587 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3588 | * | |
3589 | * This routine prepares and issue an Reject (RJT) response IOCB | |
3590 | * command. If a @mbox pointer is passed in, it will be put into the | |
3591 | * context_un.mbox field of the IOCB for the completion callback function | |
3592 | * to issue to the HBA later. | |
3593 | * | |
3594 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3595 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3596 | * will be stored into the context1 field of the IOCB for the completion | |
3597 | * callback function to the reject response ELS IOCB command. | |
3598 | * | |
3599 | * Return code | |
3600 | * 0 - Successfully issued reject response | |
3601 | * 1 - Failed to issue reject response | |
3602 | **/ | |
dea3101e | 3603 | int |
2e0fef85 | 3604 | lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, |
858c9f6c JS |
3605 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, |
3606 | LPFC_MBOXQ_t *mbox) | |
dea3101e | 3607 | { |
2e0fef85 | 3608 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3609 | IOCB_t *icmd; |
3610 | IOCB_t *oldcmd; | |
3611 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 3612 | struct lpfc_sli *psli; |
3613 | uint8_t *pcmd; | |
3614 | uint16_t cmdsize; | |
3615 | int rc; | |
3616 | ||
3617 | psli = &phba->sli; | |
92d7f7b0 | 3618 | cmdsize = 2 * sizeof(uint32_t); |
2e0fef85 JS |
3619 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3620 | ndlp->nlp_DID, ELS_CMD_LS_RJT); | |
488d1469 | 3621 | if (!elsiocb) |
c9f8735b | 3622 | return 1; |
dea3101e | 3623 | |
3624 | icmd = &elsiocb->iocb; | |
3625 | oldcmd = &oldiocb->iocb; | |
3626 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3627 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3628 | ||
3629 | *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; | |
92d7f7b0 | 3630 | pcmd += sizeof(uint32_t); |
dea3101e | 3631 | *((uint32_t *) (pcmd)) = rejectError; |
3632 | ||
51ef4c26 | 3633 | if (mbox) |
858c9f6c | 3634 | elsiocb->context_un.mbox = mbox; |
858c9f6c | 3635 | |
dea3101e | 3636 | /* Xmit ELS RJT <err> response tag <ulpIoTag> */ |
e8b62011 JS |
3637 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3638 | "0129 Xmit ELS RJT x%x response tag x%x " | |
3639 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
3640 | "rpi x%x\n", | |
3641 | rejectError, elsiocb->iotag, | |
3642 | elsiocb->iocb.ulpContext, ndlp->nlp_DID, | |
3643 | ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); | |
858c9f6c JS |
3644 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3645 | "Issue LS_RJT: did:x%x flg:x%x err:x%x", | |
3646 | ndlp->nlp_DID, ndlp->nlp_flag, rejectError); | |
3647 | ||
dea3101e | 3648 | phba->fc_stat.elsXmitLSRJT++; |
858c9f6c | 3649 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 3650 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
51ef4c26 | 3651 | |
dea3101e | 3652 | if (rc == IOCB_ERROR) { |
3653 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3654 | return 1; |
dea3101e | 3655 | } |
c9f8735b | 3656 | return 0; |
dea3101e | 3657 | } |
3658 | ||
e59058c4 | 3659 | /** |
3621a710 | 3660 | * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd |
e59058c4 JS |
3661 | * @vport: pointer to a virtual N_Port data structure. |
3662 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3663 | * @ndlp: pointer to a node-list data structure. | |
3664 | * | |
3665 | * This routine prepares and issues an Accept (ACC) response to Address | |
3666 | * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB | |
3667 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
3668 | * | |
3669 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3670 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3671 | * will be stored into the context1 field of the IOCB for the completion | |
3672 | * callback function to the ADISC Accept response ELS IOCB command. | |
3673 | * | |
3674 | * Return code | |
3675 | * 0 - Successfully issued acc adisc response | |
3676 | * 1 - Failed to issue adisc acc response | |
3677 | **/ | |
dea3101e | 3678 | int |
2e0fef85 JS |
3679 | lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
3680 | struct lpfc_nodelist *ndlp) | |
dea3101e | 3681 | { |
2e0fef85 | 3682 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3683 | ADISC *ap; |
2e0fef85 | 3684 | IOCB_t *icmd, *oldcmd; |
dea3101e | 3685 | struct lpfc_iocbq *elsiocb; |
dea3101e | 3686 | uint8_t *pcmd; |
3687 | uint16_t cmdsize; | |
3688 | int rc; | |
3689 | ||
92d7f7b0 | 3690 | cmdsize = sizeof(uint32_t) + sizeof(ADISC); |
2e0fef85 JS |
3691 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3692 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3693 | if (!elsiocb) |
c9f8735b | 3694 | return 1; |
dea3101e | 3695 | |
5b8bd0c9 JS |
3696 | icmd = &elsiocb->iocb; |
3697 | oldcmd = &oldiocb->iocb; | |
3698 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3699 | ||
dea3101e | 3700 | /* Xmit ADISC ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3701 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3702 | "0130 Xmit ADISC ACC response iotag x%x xri: " | |
3703 | "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n", | |
3704 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3705 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3706 | ndlp->nlp_rpi); | |
dea3101e | 3707 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3708 | ||
3709 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3710 | pcmd += sizeof(uint32_t); |
dea3101e | 3711 | |
3712 | ap = (ADISC *) (pcmd); | |
3713 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
3714 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
3715 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 3716 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 3717 | |
858c9f6c JS |
3718 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3719 | "Issue ACC ADISC: did:x%x flg:x%x", | |
3720 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3721 | ||
dea3101e | 3722 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3723 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 3724 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e | 3725 | if (rc == IOCB_ERROR) { |
3726 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3727 | return 1; |
dea3101e | 3728 | } |
c9f8735b | 3729 | return 0; |
dea3101e | 3730 | } |
3731 | ||
e59058c4 | 3732 | /** |
3621a710 | 3733 | * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd |
e59058c4 JS |
3734 | * @vport: pointer to a virtual N_Port data structure. |
3735 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3736 | * @ndlp: pointer to a node-list data structure. | |
3737 | * | |
3738 | * This routine prepares and issues an Accept (ACC) response to Process | |
3739 | * Login (PRLI) ELS command. It simply prepares the payload of the IOCB | |
3740 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
3741 | * | |
3742 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3743 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3744 | * will be stored into the context1 field of the IOCB for the completion | |
3745 | * callback function to the PRLI Accept response ELS IOCB command. | |
3746 | * | |
3747 | * Return code | |
3748 | * 0 - Successfully issued acc prli response | |
3749 | * 1 - Failed to issue acc prli response | |
3750 | **/ | |
dea3101e | 3751 | int |
2e0fef85 | 3752 | lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
5b8bd0c9 | 3753 | struct lpfc_nodelist *ndlp) |
dea3101e | 3754 | { |
2e0fef85 | 3755 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3756 | PRLI *npr; |
3757 | lpfc_vpd_t *vpd; | |
3758 | IOCB_t *icmd; | |
3759 | IOCB_t *oldcmd; | |
3760 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 3761 | struct lpfc_sli *psli; |
3762 | uint8_t *pcmd; | |
3763 | uint16_t cmdsize; | |
3764 | int rc; | |
3765 | ||
3766 | psli = &phba->sli; | |
dea3101e | 3767 | |
92d7f7b0 | 3768 | cmdsize = sizeof(uint32_t) + sizeof(PRLI); |
2e0fef85 | 3769 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
92d7f7b0 | 3770 | ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK))); |
c9f8735b JW |
3771 | if (!elsiocb) |
3772 | return 1; | |
dea3101e | 3773 | |
5b8bd0c9 JS |
3774 | icmd = &elsiocb->iocb; |
3775 | oldcmd = &oldiocb->iocb; | |
3776 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
dea3101e | 3777 | /* Xmit PRLI ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3778 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3779 | "0131 Xmit PRLI ACC response tag x%x xri x%x, " | |
3780 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
3781 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3782 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3783 | ndlp->nlp_rpi); | |
dea3101e | 3784 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3785 | ||
3786 | *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); | |
92d7f7b0 | 3787 | pcmd += sizeof(uint32_t); |
dea3101e | 3788 | |
3789 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
92d7f7b0 | 3790 | memset(pcmd, 0, sizeof(PRLI)); |
dea3101e | 3791 | |
3792 | npr = (PRLI *) pcmd; | |
3793 | vpd = &phba->vpd; | |
3794 | /* | |
0d2b6b83 JS |
3795 | * If the remote port is a target and our firmware version is 3.20 or |
3796 | * later, set the following bits for FC-TAPE support. | |
dea3101e | 3797 | */ |
0d2b6b83 JS |
3798 | if ((ndlp->nlp_type & NLP_FCP_TARGET) && |
3799 | (vpd->rev.feaLevelHigh >= 0x02)) { | |
dea3101e | 3800 | npr->ConfmComplAllowed = 1; |
3801 | npr->Retry = 1; | |
3802 | npr->TaskRetryIdReq = 1; | |
3803 | } | |
3804 | ||
3805 | npr->acceptRspCode = PRLI_REQ_EXECUTED; | |
3806 | npr->estabImagePair = 1; | |
3807 | npr->readXferRdyDis = 1; | |
3808 | npr->ConfmComplAllowed = 1; | |
3809 | ||
3810 | npr->prliType = PRLI_FCP_TYPE; | |
3811 | npr->initiatorFunc = 1; | |
3812 | ||
858c9f6c JS |
3813 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3814 | "Issue ACC PRLI: did:x%x flg:x%x", | |
3815 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3816 | ||
dea3101e | 3817 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3818 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 3819 | |
3772a991 | 3820 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e | 3821 | if (rc == IOCB_ERROR) { |
3822 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3823 | return 1; |
dea3101e | 3824 | } |
c9f8735b | 3825 | return 0; |
dea3101e | 3826 | } |
3827 | ||
e59058c4 | 3828 | /** |
3621a710 | 3829 | * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command |
e59058c4 JS |
3830 | * @vport: pointer to a virtual N_Port data structure. |
3831 | * @format: rnid command format. | |
3832 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3833 | * @ndlp: pointer to a node-list data structure. | |
3834 | * | |
3835 | * This routine issues a Request Node Identification Data (RNID) Accept | |
3836 | * (ACC) response. It constructs the RNID ACC response command according to | |
3837 | * the proper @format and then calls the lpfc_sli_issue_iocb() routine to | |
3838 | * issue the response. Note that this command does not need to hold the ndlp | |
3839 | * reference count for the callback. So, the ndlp reference count taken by | |
3840 | * the lpfc_prep_els_iocb() routine is put back and the context1 field of | |
3841 | * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that | |
3842 | * there is no ndlp reference available. | |
3843 | * | |
3844 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3845 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3846 | * will be stored into the context1 field of the IOCB for the completion | |
3847 | * callback function. However, for the RNID Accept Response ELS command, | |
3848 | * this is undone later by this routine after the IOCB is allocated. | |
3849 | * | |
3850 | * Return code | |
3851 | * 0 - Successfully issued acc rnid response | |
3852 | * 1 - Failed to issue acc rnid response | |
3853 | **/ | |
dea3101e | 3854 | static int |
2e0fef85 | 3855 | lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, |
329f9bc7 | 3856 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) |
dea3101e | 3857 | { |
2e0fef85 | 3858 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3859 | RNID *rn; |
2e0fef85 | 3860 | IOCB_t *icmd, *oldcmd; |
dea3101e | 3861 | struct lpfc_iocbq *elsiocb; |
dea3101e | 3862 | struct lpfc_sli *psli; |
3863 | uint8_t *pcmd; | |
3864 | uint16_t cmdsize; | |
3865 | int rc; | |
3866 | ||
3867 | psli = &phba->sli; | |
92d7f7b0 JS |
3868 | cmdsize = sizeof(uint32_t) + sizeof(uint32_t) |
3869 | + (2 * sizeof(struct lpfc_name)); | |
dea3101e | 3870 | if (format) |
92d7f7b0 | 3871 | cmdsize += sizeof(RNID_TOP_DISC); |
dea3101e | 3872 | |
2e0fef85 JS |
3873 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3874 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3875 | if (!elsiocb) |
c9f8735b | 3876 | return 1; |
dea3101e | 3877 | |
5b8bd0c9 JS |
3878 | icmd = &elsiocb->iocb; |
3879 | oldcmd = &oldiocb->iocb; | |
3880 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
dea3101e | 3881 | /* Xmit RNID ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3882 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3883 | "0132 Xmit RNID ACC response tag x%x xri x%x\n", | |
3884 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
dea3101e | 3885 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
dea3101e | 3886 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
92d7f7b0 | 3887 | pcmd += sizeof(uint32_t); |
dea3101e | 3888 | |
92d7f7b0 | 3889 | memset(pcmd, 0, sizeof(RNID)); |
dea3101e | 3890 | rn = (RNID *) (pcmd); |
3891 | rn->Format = format; | |
92d7f7b0 JS |
3892 | rn->CommonLen = (2 * sizeof(struct lpfc_name)); |
3893 | memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name)); | |
3894 | memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
dea3101e | 3895 | switch (format) { |
3896 | case 0: | |
3897 | rn->SpecificLen = 0; | |
3898 | break; | |
3899 | case RNID_TOPOLOGY_DISC: | |
92d7f7b0 | 3900 | rn->SpecificLen = sizeof(RNID_TOP_DISC); |
dea3101e | 3901 | memcpy(&rn->un.topologyDisc.portName, |
92d7f7b0 | 3902 | &vport->fc_portname, sizeof(struct lpfc_name)); |
dea3101e | 3903 | rn->un.topologyDisc.unitType = RNID_HBA; |
3904 | rn->un.topologyDisc.physPort = 0; | |
3905 | rn->un.topologyDisc.attachedNodes = 0; | |
3906 | break; | |
3907 | default: | |
3908 | rn->CommonLen = 0; | |
3909 | rn->SpecificLen = 0; | |
3910 | break; | |
3911 | } | |
3912 | ||
858c9f6c JS |
3913 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3914 | "Issue ACC RNID: did:x%x flg:x%x", | |
3915 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3916 | ||
dea3101e | 3917 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3918 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
329f9bc7 | 3919 | lpfc_nlp_put(ndlp); |
dea3101e | 3920 | elsiocb->context1 = NULL; /* Don't need ndlp for cmpl, |
3921 | * it could be freed */ | |
3922 | ||
3772a991 | 3923 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e | 3924 | if (rc == IOCB_ERROR) { |
3925 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3926 | return 1; |
dea3101e | 3927 | } |
c9f8735b | 3928 | return 0; |
dea3101e | 3929 | } |
3930 | ||
12265f68 JS |
3931 | /** |
3932 | * lpfc_els_rsp_echo_acc - Issue echo acc response | |
3933 | * @vport: pointer to a virtual N_Port data structure. | |
3934 | * @data: pointer to echo data to return in the accept. | |
3935 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3936 | * @ndlp: pointer to a node-list data structure. | |
3937 | * | |
3938 | * Return code | |
3939 | * 0 - Successfully issued acc echo response | |
3940 | * 1 - Failed to issue acc echo response | |
3941 | **/ | |
3942 | static int | |
3943 | lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data, | |
3944 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
3945 | { | |
3946 | struct lpfc_hba *phba = vport->phba; | |
3947 | struct lpfc_iocbq *elsiocb; | |
3948 | struct lpfc_sli *psli; | |
3949 | uint8_t *pcmd; | |
3950 | uint16_t cmdsize; | |
3951 | int rc; | |
3952 | ||
3953 | psli = &phba->sli; | |
3954 | cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len; | |
3955 | ||
3956 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, | |
3957 | ndlp->nlp_DID, ELS_CMD_ACC); | |
3958 | if (!elsiocb) | |
3959 | return 1; | |
3960 | ||
3961 | elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri */ | |
3962 | /* Xmit ECHO ACC response tag <ulpIoTag> */ | |
3963 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
3964 | "2876 Xmit ECHO ACC response tag x%x xri x%x\n", | |
3965 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
3966 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3967 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
3968 | pcmd += sizeof(uint32_t); | |
3969 | memcpy(pcmd, data, cmdsize - sizeof(uint32_t)); | |
3970 | ||
3971 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3972 | "Issue ACC ECHO: did:x%x flg:x%x", | |
3973 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3974 | ||
3975 | phba->fc_stat.elsXmitACC++; | |
3976 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
3977 | lpfc_nlp_put(ndlp); | |
3978 | elsiocb->context1 = NULL; /* Don't need ndlp for cmpl, | |
3979 | * it could be freed */ | |
3980 | ||
3981 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); | |
3982 | if (rc == IOCB_ERROR) { | |
3983 | lpfc_els_free_iocb(phba, elsiocb); | |
3984 | return 1; | |
3985 | } | |
3986 | return 0; | |
3987 | } | |
3988 | ||
e59058c4 | 3989 | /** |
3621a710 | 3990 | * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport |
e59058c4 JS |
3991 | * @vport: pointer to a host virtual N_Port data structure. |
3992 | * | |
3993 | * This routine issues Address Discover (ADISC) ELS commands to those | |
3994 | * N_Ports which are in node port recovery state and ADISC has not been issued | |
3995 | * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the | |
3996 | * lpfc_issue_els_adisc() routine, the per @vport number of discover count | |
3997 | * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a | |
3998 | * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will | |
3999 | * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC | |
4000 | * IOCBs quit for later pick up. On the other hand, after walking through | |
4001 | * all the ndlps with the @vport and there is none ADISC IOCB issued, the | |
4002 | * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is | |
4003 | * no more ADISC need to be sent. | |
4004 | * | |
4005 | * Return code | |
4006 | * The number of N_Ports with adisc issued. | |
4007 | **/ | |
dea3101e | 4008 | int |
2e0fef85 | 4009 | lpfc_els_disc_adisc(struct lpfc_vport *vport) |
dea3101e | 4010 | { |
2e0fef85 | 4011 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 4012 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 4013 | int sentadisc = 0; |
dea3101e | 4014 | |
685f0bf7 | 4015 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ |
2e0fef85 | 4016 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 JS |
4017 | if (!NLP_CHK_NODE_ACT(ndlp)) |
4018 | continue; | |
685f0bf7 JS |
4019 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
4020 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
4021 | (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) { | |
2e0fef85 | 4022 | spin_lock_irq(shost->host_lock); |
685f0bf7 | 4023 | ndlp->nlp_flag &= ~NLP_NPR_ADISC; |
2e0fef85 | 4024 | spin_unlock_irq(shost->host_lock); |
685f0bf7 | 4025 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
4026 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
4027 | lpfc_issue_els_adisc(vport, ndlp, 0); | |
685f0bf7 | 4028 | sentadisc++; |
2e0fef85 JS |
4029 | vport->num_disc_nodes++; |
4030 | if (vport->num_disc_nodes >= | |
3de2a653 | 4031 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
4032 | spin_lock_irq(shost->host_lock); |
4033 | vport->fc_flag |= FC_NLP_MORE; | |
4034 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 4035 | break; |
dea3101e | 4036 | } |
4037 | } | |
4038 | } | |
4039 | if (sentadisc == 0) { | |
2e0fef85 JS |
4040 | spin_lock_irq(shost->host_lock); |
4041 | vport->fc_flag &= ~FC_NLP_MORE; | |
4042 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4043 | } |
2fe165b6 | 4044 | return sentadisc; |
dea3101e | 4045 | } |
4046 | ||
e59058c4 | 4047 | /** |
3621a710 | 4048 | * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc |
e59058c4 JS |
4049 | * @vport: pointer to a host virtual N_Port data structure. |
4050 | * | |
4051 | * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports | |
4052 | * which are in node port recovery state, with a @vport. Each time an ELS | |
4053 | * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine, | |
4054 | * the per @vport number of discover count (num_disc_nodes) shall be | |
4055 | * incremented. If the num_disc_nodes reaches a pre-configured threshold | |
4056 | * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE | |
4057 | * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for | |
4058 | * later pick up. On the other hand, after walking through all the ndlps with | |
4059 | * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag | |
4060 | * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC | |
4061 | * PLOGI need to be sent. | |
4062 | * | |
4063 | * Return code | |
4064 | * The number of N_Ports with plogi issued. | |
4065 | **/ | |
dea3101e | 4066 | int |
2e0fef85 | 4067 | lpfc_els_disc_plogi(struct lpfc_vport *vport) |
dea3101e | 4068 | { |
2e0fef85 | 4069 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 4070 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 4071 | int sentplogi = 0; |
dea3101e | 4072 | |
2e0fef85 JS |
4073 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ |
4074 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
4075 | if (!NLP_CHK_NODE_ACT(ndlp)) |
4076 | continue; | |
685f0bf7 JS |
4077 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
4078 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
4079 | (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 && | |
4080 | (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) { | |
4081 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
2e0fef85 JS |
4082 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
4083 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); | |
685f0bf7 | 4084 | sentplogi++; |
2e0fef85 JS |
4085 | vport->num_disc_nodes++; |
4086 | if (vport->num_disc_nodes >= | |
3de2a653 | 4087 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
4088 | spin_lock_irq(shost->host_lock); |
4089 | vport->fc_flag |= FC_NLP_MORE; | |
4090 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 4091 | break; |
dea3101e | 4092 | } |
4093 | } | |
4094 | } | |
87af33fe JS |
4095 | if (sentplogi) { |
4096 | lpfc_set_disctmo(vport); | |
4097 | } | |
4098 | else { | |
2e0fef85 JS |
4099 | spin_lock_irq(shost->host_lock); |
4100 | vport->fc_flag &= ~FC_NLP_MORE; | |
4101 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4102 | } |
2fe165b6 | 4103 | return sentplogi; |
dea3101e | 4104 | } |
4105 | ||
e59058c4 | 4106 | /** |
3621a710 | 4107 | * lpfc_els_flush_rscn - Clean up any rscn activities with a vport |
e59058c4 JS |
4108 | * @vport: pointer to a host virtual N_Port data structure. |
4109 | * | |
4110 | * This routine cleans up any Registration State Change Notification | |
4111 | * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the | |
4112 | * @vport together with the host_lock is used to prevent multiple thread | |
4113 | * trying to access the RSCN array on a same @vport at the same time. | |
4114 | **/ | |
92d7f7b0 | 4115 | void |
2e0fef85 | 4116 | lpfc_els_flush_rscn(struct lpfc_vport *vport) |
dea3101e | 4117 | { |
2e0fef85 JS |
4118 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4119 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 4120 | int i; |
4121 | ||
7f5f3d0d JS |
4122 | spin_lock_irq(shost->host_lock); |
4123 | if (vport->fc_rscn_flush) { | |
4124 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
4125 | spin_unlock_irq(shost->host_lock); | |
4126 | return; | |
4127 | } | |
4128 | /* Indicate we are walking lpfc_els_flush_rscn on this vport */ | |
4129 | vport->fc_rscn_flush = 1; | |
4130 | spin_unlock_irq(shost->host_lock); | |
4131 | ||
2e0fef85 | 4132 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 | 4133 | lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]); |
2e0fef85 | 4134 | vport->fc_rscn_id_list[i] = NULL; |
dea3101e | 4135 | } |
2e0fef85 JS |
4136 | spin_lock_irq(shost->host_lock); |
4137 | vport->fc_rscn_id_cnt = 0; | |
4138 | vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY); | |
4139 | spin_unlock_irq(shost->host_lock); | |
4140 | lpfc_can_disctmo(vport); | |
7f5f3d0d JS |
4141 | /* Indicate we are done walking this fc_rscn_id_list */ |
4142 | vport->fc_rscn_flush = 0; | |
dea3101e | 4143 | } |
4144 | ||
e59058c4 | 4145 | /** |
3621a710 | 4146 | * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did |
e59058c4 JS |
4147 | * @vport: pointer to a host virtual N_Port data structure. |
4148 | * @did: remote destination port identifier. | |
4149 | * | |
4150 | * This routine checks whether there is any pending Registration State | |
4151 | * Configuration Notification (RSCN) to a @did on @vport. | |
4152 | * | |
4153 | * Return code | |
4154 | * None zero - The @did matched with a pending rscn | |
4155 | * 0 - not able to match @did with a pending rscn | |
4156 | **/ | |
dea3101e | 4157 | int |
2e0fef85 | 4158 | lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) |
dea3101e | 4159 | { |
4160 | D_ID ns_did; | |
4161 | D_ID rscn_did; | |
dea3101e | 4162 | uint32_t *lp; |
92d7f7b0 | 4163 | uint32_t payload_len, i; |
7f5f3d0d | 4164 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 4165 | |
4166 | ns_did.un.word = did; | |
dea3101e | 4167 | |
4168 | /* Never match fabric nodes for RSCNs */ | |
4169 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
2e0fef85 | 4170 | return 0; |
dea3101e | 4171 | |
4172 | /* If we are doing a FULL RSCN rediscovery, match everything */ | |
2e0fef85 | 4173 | if (vport->fc_flag & FC_RSCN_DISCOVERY) |
c9f8735b | 4174 | return did; |
dea3101e | 4175 | |
7f5f3d0d JS |
4176 | spin_lock_irq(shost->host_lock); |
4177 | if (vport->fc_rscn_flush) { | |
4178 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
4179 | spin_unlock_irq(shost->host_lock); | |
4180 | return 0; | |
4181 | } | |
4182 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
4183 | vport->fc_rscn_flush = 1; | |
4184 | spin_unlock_irq(shost->host_lock); | |
2e0fef85 | 4185 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 JS |
4186 | lp = vport->fc_rscn_id_list[i]->virt; |
4187 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); | |
4188 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 4189 | while (payload_len) { |
92d7f7b0 JS |
4190 | rscn_did.un.word = be32_to_cpu(*lp++); |
4191 | payload_len -= sizeof(uint32_t); | |
eaf15d5b JS |
4192 | switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) { |
4193 | case RSCN_ADDRESS_FORMAT_PORT: | |
6fb120a7 JS |
4194 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
4195 | && (ns_did.un.b.area == rscn_did.un.b.area) | |
4196 | && (ns_did.un.b.id == rscn_did.un.b.id)) | |
7f5f3d0d | 4197 | goto return_did_out; |
dea3101e | 4198 | break; |
eaf15d5b | 4199 | case RSCN_ADDRESS_FORMAT_AREA: |
dea3101e | 4200 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
4201 | && (ns_did.un.b.area == rscn_did.un.b.area)) | |
7f5f3d0d | 4202 | goto return_did_out; |
dea3101e | 4203 | break; |
eaf15d5b | 4204 | case RSCN_ADDRESS_FORMAT_DOMAIN: |
dea3101e | 4205 | if (ns_did.un.b.domain == rscn_did.un.b.domain) |
7f5f3d0d | 4206 | goto return_did_out; |
dea3101e | 4207 | break; |
eaf15d5b | 4208 | case RSCN_ADDRESS_FORMAT_FABRIC: |
7f5f3d0d | 4209 | goto return_did_out; |
dea3101e | 4210 | } |
4211 | } | |
92d7f7b0 | 4212 | } |
7f5f3d0d JS |
4213 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ |
4214 | vport->fc_rscn_flush = 0; | |
92d7f7b0 | 4215 | return 0; |
7f5f3d0d JS |
4216 | return_did_out: |
4217 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ | |
4218 | vport->fc_rscn_flush = 0; | |
4219 | return did; | |
dea3101e | 4220 | } |
4221 | ||
e59058c4 | 4222 | /** |
3621a710 | 4223 | * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn |
e59058c4 JS |
4224 | * @vport: pointer to a host virtual N_Port data structure. |
4225 | * | |
4226 | * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the | |
4227 | * state machine for a @vport's nodes that are with pending RSCN (Registration | |
4228 | * State Change Notification). | |
4229 | * | |
4230 | * Return code | |
4231 | * 0 - Successful (currently alway return 0) | |
4232 | **/ | |
dea3101e | 4233 | static int |
2e0fef85 | 4234 | lpfc_rscn_recovery_check(struct lpfc_vport *vport) |
dea3101e | 4235 | { |
685f0bf7 | 4236 | struct lpfc_nodelist *ndlp = NULL; |
dea3101e | 4237 | |
0d2b6b83 | 4238 | /* Move all affected nodes by pending RSCNs to NPR state. */ |
2e0fef85 | 4239 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 | 4240 | if (!NLP_CHK_NODE_ACT(ndlp) || |
0d2b6b83 JS |
4241 | (ndlp->nlp_state == NLP_STE_UNUSED_NODE) || |
4242 | !lpfc_rscn_payload_check(vport, ndlp->nlp_DID)) | |
685f0bf7 | 4243 | continue; |
2e0fef85 | 4244 | lpfc_disc_state_machine(vport, ndlp, NULL, |
0d2b6b83 JS |
4245 | NLP_EVT_DEVICE_RECOVERY); |
4246 | lpfc_cancel_retry_delay_tmo(vport, ndlp); | |
dea3101e | 4247 | } |
c9f8735b | 4248 | return 0; |
dea3101e | 4249 | } |
4250 | ||
ddcc50f0 | 4251 | /** |
3621a710 | 4252 | * lpfc_send_rscn_event - Send an RSCN event to management application |
ddcc50f0 JS |
4253 | * @vport: pointer to a host virtual N_Port data structure. |
4254 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4255 | * | |
4256 | * lpfc_send_rscn_event sends an RSCN netlink event to management | |
4257 | * applications. | |
4258 | */ | |
4259 | static void | |
4260 | lpfc_send_rscn_event(struct lpfc_vport *vport, | |
4261 | struct lpfc_iocbq *cmdiocb) | |
4262 | { | |
4263 | struct lpfc_dmabuf *pcmd; | |
4264 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
4265 | uint32_t *payload_ptr; | |
4266 | uint32_t payload_len; | |
4267 | struct lpfc_rscn_event_header *rscn_event_data; | |
4268 | ||
4269 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4270 | payload_ptr = (uint32_t *) pcmd->virt; | |
4271 | payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK); | |
4272 | ||
4273 | rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) + | |
4274 | payload_len, GFP_KERNEL); | |
4275 | if (!rscn_event_data) { | |
4276 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
4277 | "0147 Failed to allocate memory for RSCN event\n"); | |
4278 | return; | |
4279 | } | |
4280 | rscn_event_data->event_type = FC_REG_RSCN_EVENT; | |
4281 | rscn_event_data->payload_length = payload_len; | |
4282 | memcpy(rscn_event_data->rscn_payload, payload_ptr, | |
4283 | payload_len); | |
4284 | ||
4285 | fc_host_post_vendor_event(shost, | |
4286 | fc_get_event_number(), | |
4287 | sizeof(struct lpfc_els_event_header) + payload_len, | |
4288 | (char *)rscn_event_data, | |
4289 | LPFC_NL_VENDOR_ID); | |
4290 | ||
4291 | kfree(rscn_event_data); | |
4292 | } | |
4293 | ||
e59058c4 | 4294 | /** |
3621a710 | 4295 | * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb |
e59058c4 JS |
4296 | * @vport: pointer to a host virtual N_Port data structure. |
4297 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4298 | * @ndlp: pointer to a node-list data structure. | |
4299 | * | |
4300 | * This routine processes an unsolicited RSCN (Registration State Change | |
4301 | * Notification) IOCB. First, the payload of the unsolicited RSCN is walked | |
4302 | * to invoke fc_host_post_event() routine to the FC transport layer. If the | |
4303 | * discover state machine is about to begin discovery, it just accepts the | |
4304 | * RSCN and the discovery process will satisfy the RSCN. If this RSCN only | |
4305 | * contains N_Port IDs for other vports on this HBA, it just accepts the | |
4306 | * RSCN and ignore processing it. If the state machine is in the recovery | |
4307 | * state, the fc_rscn_id_list of this @vport is walked and the | |
4308 | * lpfc_rscn_recovery_check() routine is invoked to send recovery event for | |
4309 | * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn() | |
4310 | * routine is invoked to handle the RSCN event. | |
4311 | * | |
4312 | * Return code | |
4313 | * 0 - Just sent the acc response | |
4314 | * 1 - Sent the acc response and waited for name server completion | |
4315 | **/ | |
dea3101e | 4316 | static int |
2e0fef85 | 4317 | lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 4318 | struct lpfc_nodelist *ndlp) |
dea3101e | 4319 | { |
2e0fef85 JS |
4320 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4321 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 4322 | struct lpfc_dmabuf *pcmd; |
92d7f7b0 | 4323 | uint32_t *lp, *datap; |
dea3101e | 4324 | IOCB_t *icmd; |
92d7f7b0 | 4325 | uint32_t payload_len, length, nportid, *cmd; |
7f5f3d0d | 4326 | int rscn_cnt; |
92d7f7b0 | 4327 | int rscn_id = 0, hba_id = 0; |
d2873e4c | 4328 | int i; |
dea3101e | 4329 | |
4330 | icmd = &cmdiocb->iocb; | |
4331 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4332 | lp = (uint32_t *) pcmd->virt; | |
4333 | ||
92d7f7b0 JS |
4334 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); |
4335 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 4336 | /* RSCN received */ |
e8b62011 JS |
4337 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4338 | "0214 RSCN received Data: x%x x%x x%x x%x\n", | |
7f5f3d0d JS |
4339 | vport->fc_flag, payload_len, *lp, |
4340 | vport->fc_rscn_id_cnt); | |
ddcc50f0 JS |
4341 | |
4342 | /* Send an RSCN event to the management application */ | |
4343 | lpfc_send_rscn_event(vport, cmdiocb); | |
4344 | ||
d2873e4c | 4345 | for (i = 0; i < payload_len/sizeof(uint32_t); i++) |
2e0fef85 | 4346 | fc_host_post_event(shost, fc_get_event_number(), |
d2873e4c JS |
4347 | FCH_EVT_RSCN, lp[i]); |
4348 | ||
dea3101e | 4349 | /* If we are about to begin discovery, just ACC the RSCN. |
4350 | * Discovery processing will satisfy it. | |
4351 | */ | |
2e0fef85 | 4352 | if (vport->port_state <= LPFC_NS_QRY) { |
858c9f6c JS |
4353 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4354 | "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x", | |
4355 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4356 | ||
51ef4c26 | 4357 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
c9f8735b | 4358 | return 0; |
dea3101e | 4359 | } |
4360 | ||
92d7f7b0 JS |
4361 | /* If this RSCN just contains NPortIDs for other vports on this HBA, |
4362 | * just ACC and ignore it. | |
4363 | */ | |
4364 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
3de2a653 | 4365 | !(vport->cfg_peer_port_login)) { |
92d7f7b0 JS |
4366 | i = payload_len; |
4367 | datap = lp; | |
4368 | while (i > 0) { | |
4369 | nportid = *datap++; | |
4370 | nportid = ((be32_to_cpu(nportid)) & Mask_DID); | |
4371 | i -= sizeof(uint32_t); | |
4372 | rscn_id++; | |
549e55cd JS |
4373 | if (lpfc_find_vport_by_did(phba, nportid)) |
4374 | hba_id++; | |
92d7f7b0 JS |
4375 | } |
4376 | if (rscn_id == hba_id) { | |
4377 | /* ALL NPortIDs in RSCN are on HBA */ | |
e8b62011 | 4378 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
d7c255b2 | 4379 | "0219 Ignore RSCN " |
e8b62011 JS |
4380 | "Data: x%x x%x x%x x%x\n", |
4381 | vport->fc_flag, payload_len, | |
7f5f3d0d | 4382 | *lp, vport->fc_rscn_id_cnt); |
858c9f6c JS |
4383 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4384 | "RCV RSCN vport: did:x%x/ste:x%x flg:x%x", | |
4385 | ndlp->nlp_DID, vport->port_state, | |
4386 | ndlp->nlp_flag); | |
4387 | ||
92d7f7b0 | 4388 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, |
51ef4c26 | 4389 | ndlp, NULL); |
92d7f7b0 JS |
4390 | return 0; |
4391 | } | |
4392 | } | |
4393 | ||
7f5f3d0d JS |
4394 | spin_lock_irq(shost->host_lock); |
4395 | if (vport->fc_rscn_flush) { | |
4396 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
7f5f3d0d | 4397 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
97957244 | 4398 | spin_unlock_irq(shost->host_lock); |
58da1ffb JS |
4399 | /* Send back ACC */ |
4400 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
7f5f3d0d JS |
4401 | return 0; |
4402 | } | |
4403 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
4404 | vport->fc_rscn_flush = 1; | |
4405 | spin_unlock_irq(shost->host_lock); | |
af901ca1 | 4406 | /* Get the array count after successfully have the token */ |
7f5f3d0d | 4407 | rscn_cnt = vport->fc_rscn_id_cnt; |
dea3101e | 4408 | /* If we are already processing an RSCN, save the received |
4409 | * RSCN payload buffer, cmdiocb->context2 to process later. | |
4410 | */ | |
2e0fef85 | 4411 | if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) { |
858c9f6c JS |
4412 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4413 | "RCV RSCN defer: did:x%x/ste:x%x flg:x%x", | |
4414 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4415 | ||
09372820 | 4416 | spin_lock_irq(shost->host_lock); |
92d7f7b0 JS |
4417 | vport->fc_flag |= FC_RSCN_DEFERRED; |
4418 | if ((rscn_cnt < FC_MAX_HOLD_RSCN) && | |
2e0fef85 | 4419 | !(vport->fc_flag & FC_RSCN_DISCOVERY)) { |
2e0fef85 JS |
4420 | vport->fc_flag |= FC_RSCN_MODE; |
4421 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
4422 | if (rscn_cnt) { |
4423 | cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt; | |
4424 | length = be32_to_cpu(*cmd & ~ELS_CMD_MASK); | |
4425 | } | |
4426 | if ((rscn_cnt) && | |
4427 | (payload_len + length <= LPFC_BPL_SIZE)) { | |
4428 | *cmd &= ELS_CMD_MASK; | |
7f5f3d0d | 4429 | *cmd |= cpu_to_be32(payload_len + length); |
92d7f7b0 JS |
4430 | memcpy(((uint8_t *)cmd) + length, lp, |
4431 | payload_len); | |
4432 | } else { | |
4433 | vport->fc_rscn_id_list[rscn_cnt] = pcmd; | |
4434 | vport->fc_rscn_id_cnt++; | |
4435 | /* If we zero, cmdiocb->context2, the calling | |
4436 | * routine will not try to free it. | |
4437 | */ | |
4438 | cmdiocb->context2 = NULL; | |
4439 | } | |
dea3101e | 4440 | /* Deferred RSCN */ |
e8b62011 JS |
4441 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4442 | "0235 Deferred RSCN " | |
4443 | "Data: x%x x%x x%x\n", | |
4444 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4445 | vport->port_state); | |
dea3101e | 4446 | } else { |
2e0fef85 JS |
4447 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
4448 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4449 | /* ReDiscovery RSCN */ |
e8b62011 JS |
4450 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4451 | "0234 ReDiscovery RSCN " | |
4452 | "Data: x%x x%x x%x\n", | |
4453 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4454 | vport->port_state); | |
dea3101e | 4455 | } |
7f5f3d0d JS |
4456 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4457 | vport->fc_rscn_flush = 0; | |
dea3101e | 4458 | /* Send back ACC */ |
51ef4c26 | 4459 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4460 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4461 | lpfc_rscn_recovery_check(vport); |
09372820 | 4462 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 4463 | vport->fc_flag &= ~FC_RSCN_DEFERRED; |
09372820 | 4464 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 4465 | return 0; |
dea3101e | 4466 | } |
858c9f6c JS |
4467 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4468 | "RCV RSCN: did:x%x/ste:x%x flg:x%x", | |
4469 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4470 | ||
2e0fef85 JS |
4471 | spin_lock_irq(shost->host_lock); |
4472 | vport->fc_flag |= FC_RSCN_MODE; | |
4473 | spin_unlock_irq(shost->host_lock); | |
4474 | vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd; | |
7f5f3d0d JS |
4475 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4476 | vport->fc_rscn_flush = 0; | |
dea3101e | 4477 | /* |
4478 | * If we zero, cmdiocb->context2, the calling routine will | |
4479 | * not try to free it. | |
4480 | */ | |
4481 | cmdiocb->context2 = NULL; | |
2e0fef85 | 4482 | lpfc_set_disctmo(vport); |
dea3101e | 4483 | /* Send back ACC */ |
51ef4c26 | 4484 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4485 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4486 | lpfc_rscn_recovery_check(vport); |
2e0fef85 | 4487 | return lpfc_els_handle_rscn(vport); |
dea3101e | 4488 | } |
4489 | ||
e59058c4 | 4490 | /** |
3621a710 | 4491 | * lpfc_els_handle_rscn - Handle rscn for a vport |
e59058c4 JS |
4492 | * @vport: pointer to a host virtual N_Port data structure. |
4493 | * | |
4494 | * This routine handles the Registration State Configuration Notification | |
4495 | * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall | |
4496 | * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise, | |
4497 | * if the ndlp to NameServer exists, a Common Transport (CT) command to the | |
4498 | * NameServer shall be issued. If CT command to the NameServer fails to be | |
4499 | * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any | |
4500 | * RSCN activities with the @vport. | |
4501 | * | |
4502 | * Return code | |
4503 | * 0 - Cleaned up rscn on the @vport | |
4504 | * 1 - Wait for plogi to name server before proceed | |
4505 | **/ | |
dea3101e | 4506 | int |
2e0fef85 | 4507 | lpfc_els_handle_rscn(struct lpfc_vport *vport) |
dea3101e | 4508 | { |
4509 | struct lpfc_nodelist *ndlp; | |
2e0fef85 | 4510 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4511 | |
92d7f7b0 JS |
4512 | /* Ignore RSCN if the port is being torn down. */ |
4513 | if (vport->load_flag & FC_UNLOADING) { | |
4514 | lpfc_els_flush_rscn(vport); | |
4515 | return 0; | |
4516 | } | |
4517 | ||
dea3101e | 4518 | /* Start timer for RSCN processing */ |
2e0fef85 | 4519 | lpfc_set_disctmo(vport); |
dea3101e | 4520 | |
4521 | /* RSCN processed */ | |
e8b62011 JS |
4522 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4523 | "0215 RSCN processed Data: x%x x%x x%x x%x\n", | |
4524 | vport->fc_flag, 0, vport->fc_rscn_id_cnt, | |
4525 | vport->port_state); | |
dea3101e | 4526 | |
4527 | /* To process RSCN, first compare RSCN data with NameServer */ | |
2e0fef85 | 4528 | vport->fc_ns_retry = 0; |
0ff10d46 JS |
4529 | vport->num_disc_nodes = 0; |
4530 | ||
2e0fef85 | 4531 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 JS |
4532 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
4533 | && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { | |
dea3101e | 4534 | /* Good ndlp, issue CT Request to NameServer */ |
92d7f7b0 | 4535 | if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0) |
dea3101e | 4536 | /* Wait for NameServer query cmpl before we can |
4537 | continue */ | |
c9f8735b | 4538 | return 1; |
dea3101e | 4539 | } else { |
4540 | /* If login to NameServer does not exist, issue one */ | |
4541 | /* Good status, issue PLOGI to NameServer */ | |
2e0fef85 | 4542 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 | 4543 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
dea3101e | 4544 | /* Wait for NameServer login cmpl before we can |
4545 | continue */ | |
c9f8735b | 4546 | return 1; |
2e0fef85 | 4547 | |
e47c9093 JS |
4548 | if (ndlp) { |
4549 | ndlp = lpfc_enable_node(vport, ndlp, | |
4550 | NLP_STE_PLOGI_ISSUE); | |
4551 | if (!ndlp) { | |
4552 | lpfc_els_flush_rscn(vport); | |
4553 | return 0; | |
4554 | } | |
4555 | ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; | |
dea3101e | 4556 | } else { |
e47c9093 JS |
4557 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
4558 | if (!ndlp) { | |
4559 | lpfc_els_flush_rscn(vport); | |
4560 | return 0; | |
4561 | } | |
2e0fef85 | 4562 | lpfc_nlp_init(vport, ndlp, NameServer_DID); |
5024ab17 | 4563 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 4564 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
dea3101e | 4565 | } |
e47c9093 JS |
4566 | ndlp->nlp_type |= NLP_FABRIC; |
4567 | lpfc_issue_els_plogi(vport, NameServer_DID, 0); | |
4568 | /* Wait for NameServer login cmpl before we can | |
4569 | * continue | |
4570 | */ | |
4571 | return 1; | |
dea3101e | 4572 | } |
4573 | ||
2e0fef85 | 4574 | lpfc_els_flush_rscn(vport); |
c9f8735b | 4575 | return 0; |
dea3101e | 4576 | } |
4577 | ||
e59058c4 | 4578 | /** |
3621a710 | 4579 | * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb |
e59058c4 JS |
4580 | * @vport: pointer to a host virtual N_Port data structure. |
4581 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4582 | * @ndlp: pointer to a node-list data structure. | |
4583 | * | |
4584 | * This routine processes Fabric Login (FLOGI) IOCB received as an ELS | |
4585 | * unsolicited event. An unsolicited FLOGI can be received in a point-to- | |
4586 | * point topology. As an unsolicited FLOGI should not be received in a loop | |
4587 | * mode, any unsolicited FLOGI received in loop mode shall be ignored. The | |
4588 | * lpfc_check_sparm() routine is invoked to check the parameters in the | |
4589 | * unsolicited FLOGI. If parameters validation failed, the routine | |
4590 | * lpfc_els_rsp_reject() shall be called with reject reason code set to | |
4591 | * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the | |
4592 | * FLOGI shall be compared with the Port WWN of the @vport to determine who | |
4593 | * will initiate PLOGI. The higher lexicographical value party shall has | |
4594 | * higher priority (as the winning port) and will initiate PLOGI and | |
4595 | * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result | |
4596 | * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI | |
4597 | * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI. | |
4598 | * | |
4599 | * Return code | |
4600 | * 0 - Successfully processed the unsolicited flogi | |
4601 | * 1 - Failed to process the unsolicited flogi | |
4602 | **/ | |
dea3101e | 4603 | static int |
2e0fef85 | 4604 | lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 4605 | struct lpfc_nodelist *ndlp) |
dea3101e | 4606 | { |
2e0fef85 JS |
4607 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4608 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 4609 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
4610 | uint32_t *lp = (uint32_t *) pcmd->virt; | |
4611 | IOCB_t *icmd = &cmdiocb->iocb; | |
4612 | struct serv_parm *sp; | |
4613 | LPFC_MBOXQ_t *mbox; | |
4614 | struct ls_rjt stat; | |
4615 | uint32_t cmd, did; | |
4616 | int rc; | |
4617 | ||
4618 | cmd = *lp++; | |
4619 | sp = (struct serv_parm *) lp; | |
4620 | ||
4621 | /* FLOGI received */ | |
4622 | ||
2e0fef85 | 4623 | lpfc_set_disctmo(vport); |
dea3101e | 4624 | |
4625 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
4626 | /* We should never receive a FLOGI in loop mode, ignore it */ | |
4627 | did = icmd->un.elsreq64.remoteID; | |
4628 | ||
4629 | /* An FLOGI ELS command <elsCmd> was received from DID <did> in | |
4630 | Loop Mode */ | |
e8b62011 JS |
4631 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
4632 | "0113 An FLOGI ELS command x%x was " | |
4633 | "received from DID x%x in Loop Mode\n", | |
4634 | cmd, did); | |
c9f8735b | 4635 | return 1; |
dea3101e | 4636 | } |
4637 | ||
4638 | did = Fabric_DID; | |
4639 | ||
341af102 | 4640 | if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1))) { |
dea3101e | 4641 | /* For a FLOGI we accept, then if our portname is greater |
4642 | * then the remote portname we initiate Nport login. | |
4643 | */ | |
4644 | ||
2e0fef85 | 4645 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 4646 | sizeof(struct lpfc_name)); |
dea3101e | 4647 | |
4648 | if (!rc) { | |
2e0fef85 JS |
4649 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
4650 | if (!mbox) | |
c9f8735b | 4651 | return 1; |
2e0fef85 | 4652 | |
dea3101e | 4653 | lpfc_linkdown(phba); |
4654 | lpfc_init_link(phba, mbox, | |
4655 | phba->cfg_topology, | |
4656 | phba->cfg_link_speed); | |
04c68496 | 4657 | mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; |
dea3101e | 4658 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
ed957684 | 4659 | mbox->vport = vport; |
0b727fea | 4660 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
5b8bd0c9 | 4661 | lpfc_set_loopback_flag(phba); |
dea3101e | 4662 | if (rc == MBX_NOT_FINISHED) { |
329f9bc7 | 4663 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 4664 | } |
c9f8735b | 4665 | return 1; |
2fe165b6 | 4666 | } else if (rc > 0) { /* greater than */ |
2e0fef85 JS |
4667 | spin_lock_irq(shost->host_lock); |
4668 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
4669 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4670 | } |
2e0fef85 JS |
4671 | spin_lock_irq(shost->host_lock); |
4672 | vport->fc_flag |= FC_PT2PT; | |
4673 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
4674 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4675 | } else { |
4676 | /* Reject this request because invalid parameters */ | |
4677 | stat.un.b.lsRjtRsvd0 = 0; | |
4678 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4679 | stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; | |
4680 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4681 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4682 | NULL); | |
c9f8735b | 4683 | return 1; |
dea3101e | 4684 | } |
4685 | ||
4686 | /* Send back ACC */ | |
51ef4c26 | 4687 | lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL); |
dea3101e | 4688 | |
c9f8735b | 4689 | return 0; |
dea3101e | 4690 | } |
4691 | ||
e59058c4 | 4692 | /** |
3621a710 | 4693 | * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb |
e59058c4 JS |
4694 | * @vport: pointer to a host virtual N_Port data structure. |
4695 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4696 | * @ndlp: pointer to a node-list data structure. | |
4697 | * | |
4698 | * This routine processes Request Node Identification Data (RNID) IOCB | |
4699 | * received as an ELS unsolicited event. Only when the RNID specified format | |
4700 | * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data) | |
4701 | * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to | |
4702 | * Accept (ACC) the RNID ELS command. All the other RNID formats are | |
4703 | * rejected by invoking the lpfc_els_rsp_reject() routine. | |
4704 | * | |
4705 | * Return code | |
4706 | * 0 - Successfully processed rnid iocb (currently always return 0) | |
4707 | **/ | |
dea3101e | 4708 | static int |
2e0fef85 JS |
4709 | lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4710 | struct lpfc_nodelist *ndlp) | |
dea3101e | 4711 | { |
4712 | struct lpfc_dmabuf *pcmd; | |
4713 | uint32_t *lp; | |
4714 | IOCB_t *icmd; | |
4715 | RNID *rn; | |
4716 | struct ls_rjt stat; | |
4717 | uint32_t cmd, did; | |
4718 | ||
4719 | icmd = &cmdiocb->iocb; | |
4720 | did = icmd->un.elsreq64.remoteID; | |
4721 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4722 | lp = (uint32_t *) pcmd->virt; | |
4723 | ||
4724 | cmd = *lp++; | |
4725 | rn = (RNID *) lp; | |
4726 | ||
4727 | /* RNID received */ | |
4728 | ||
4729 | switch (rn->Format) { | |
4730 | case 0: | |
4731 | case RNID_TOPOLOGY_DISC: | |
4732 | /* Send back ACC */ | |
2e0fef85 | 4733 | lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp); |
dea3101e | 4734 | break; |
4735 | default: | |
4736 | /* Reject this request because format not supported */ | |
4737 | stat.un.b.lsRjtRsvd0 = 0; | |
4738 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4739 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4740 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4741 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4742 | NULL); | |
dea3101e | 4743 | } |
c9f8735b | 4744 | return 0; |
dea3101e | 4745 | } |
4746 | ||
12265f68 JS |
4747 | /** |
4748 | * lpfc_els_rcv_echo - Process an unsolicited echo iocb | |
4749 | * @vport: pointer to a host virtual N_Port data structure. | |
4750 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4751 | * @ndlp: pointer to a node-list data structure. | |
4752 | * | |
4753 | * Return code | |
4754 | * 0 - Successfully processed echo iocb (currently always return 0) | |
4755 | **/ | |
4756 | static int | |
4757 | lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
4758 | struct lpfc_nodelist *ndlp) | |
4759 | { | |
4760 | uint8_t *pcmd; | |
4761 | ||
4762 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); | |
4763 | ||
4764 | /* skip over first word of echo command to find echo data */ | |
4765 | pcmd += sizeof(uint32_t); | |
4766 | ||
4767 | lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp); | |
4768 | return 0; | |
4769 | } | |
4770 | ||
e59058c4 | 4771 | /** |
3621a710 | 4772 | * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb |
e59058c4 JS |
4773 | * @vport: pointer to a host virtual N_Port data structure. |
4774 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4775 | * @ndlp: pointer to a node-list data structure. | |
4776 | * | |
4777 | * This routine processes a Link Incident Report Registration(LIRR) IOCB | |
4778 | * received as an ELS unsolicited event. Currently, this function just invokes | |
4779 | * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally. | |
4780 | * | |
4781 | * Return code | |
4782 | * 0 - Successfully processed lirr iocb (currently always return 0) | |
4783 | **/ | |
dea3101e | 4784 | static int |
2e0fef85 JS |
4785 | lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4786 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
4787 | { |
4788 | struct ls_rjt stat; | |
4789 | ||
4790 | /* For now, unconditionally reject this command */ | |
4791 | stat.un.b.lsRjtRsvd0 = 0; | |
4792 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4793 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4794 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 4795 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
4796 | return 0; |
4797 | } | |
4798 | ||
5ffc266e JS |
4799 | /** |
4800 | * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb | |
4801 | * @vport: pointer to a host virtual N_Port data structure. | |
4802 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4803 | * @ndlp: pointer to a node-list data structure. | |
4804 | * | |
4805 | * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB | |
4806 | * received as an ELS unsolicited event. A request to RRQ shall only | |
4807 | * be accepted if the Originator Nx_Port N_Port_ID or the Responder | |
4808 | * Nx_Port N_Port_ID of the target Exchange is the same as the | |
4809 | * N_Port_ID of the Nx_Port that makes the request. If the RRQ is | |
4810 | * not accepted, an LS_RJT with reason code "Unable to perform | |
4811 | * command request" and reason code explanation "Invalid Originator | |
4812 | * S_ID" shall be returned. For now, we just unconditionally accept | |
4813 | * RRQ from the target. | |
4814 | **/ | |
4815 | static void | |
4816 | lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
4817 | struct lpfc_nodelist *ndlp) | |
4818 | { | |
4819 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
4820 | } | |
4821 | ||
12265f68 JS |
4822 | /** |
4823 | * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd | |
4824 | * @phba: pointer to lpfc hba data structure. | |
4825 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
4826 | * | |
4827 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
4828 | * mailbox command. This callback function is to actually send the Accept | |
4829 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
4830 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
4831 | * mailbox command, constructs the RPS response with the link statistics | |
4832 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
4833 | * response to the RPS. | |
4834 | * | |
4835 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4836 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4837 | * will be stored into the context1 field of the IOCB for the completion | |
4838 | * callback function to the RPS Accept Response ELS IOCB command. | |
4839 | * | |
4840 | **/ | |
4841 | static void | |
4842 | lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
4843 | { | |
4844 | MAILBOX_t *mb; | |
4845 | IOCB_t *icmd; | |
4846 | struct RLS_RSP *rls_rsp; | |
4847 | uint8_t *pcmd; | |
4848 | struct lpfc_iocbq *elsiocb; | |
4849 | struct lpfc_nodelist *ndlp; | |
4850 | uint16_t xri; | |
4851 | uint32_t cmdsize; | |
4852 | ||
4853 | mb = &pmb->u.mb; | |
4854 | ||
4855 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
4856 | xri = (uint16_t) ((unsigned long)(pmb->context1)); | |
4857 | pmb->context1 = NULL; | |
4858 | pmb->context2 = NULL; | |
4859 | ||
4860 | if (mb->mbxStatus) { | |
4861 | mempool_free(pmb, phba->mbox_mem_pool); | |
4862 | return; | |
4863 | } | |
4864 | ||
4865 | cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t); | |
4866 | mempool_free(pmb, phba->mbox_mem_pool); | |
4867 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, | |
4868 | lpfc_max_els_tries, ndlp, | |
4869 | ndlp->nlp_DID, ELS_CMD_ACC); | |
4870 | ||
4871 | /* Decrement the ndlp reference count from previous mbox command */ | |
4872 | lpfc_nlp_put(ndlp); | |
4873 | ||
4874 | if (!elsiocb) | |
4875 | return; | |
4876 | ||
4877 | icmd = &elsiocb->iocb; | |
4878 | icmd->ulpContext = xri; | |
4879 | ||
4880 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
4881 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
4882 | pcmd += sizeof(uint32_t); /* Skip past command */ | |
4883 | rls_rsp = (struct RLS_RSP *)pcmd; | |
4884 | ||
4885 | rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
4886 | rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
4887 | rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
4888 | rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
4889 | rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
4890 | rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
4891 | ||
4892 | /* Xmit ELS RLS ACC response tag <ulpIoTag> */ | |
4893 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, | |
4894 | "2874 Xmit ELS RLS ACC response tag x%x xri x%x, " | |
4895 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
4896 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
4897 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
4898 | ndlp->nlp_rpi); | |
4899 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
4900 | phba->fc_stat.elsXmitACC++; | |
4901 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) | |
4902 | lpfc_els_free_iocb(phba, elsiocb); | |
4903 | } | |
4904 | ||
e59058c4 | 4905 | /** |
3621a710 | 4906 | * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd |
e59058c4 JS |
4907 | * @phba: pointer to lpfc hba data structure. |
4908 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
4909 | * | |
4910 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
4911 | * mailbox command. This callback function is to actually send the Accept | |
4912 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
4913 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
4914 | * mailbox command, constructs the RPS response with the link statistics | |
4915 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
4916 | * response to the RPS. | |
4917 | * | |
4918 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4919 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4920 | * will be stored into the context1 field of the IOCB for the completion | |
4921 | * callback function to the RPS Accept Response ELS IOCB command. | |
4922 | * | |
4923 | **/ | |
082c0266 | 4924 | static void |
329f9bc7 | 4925 | lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
7bb3b137 | 4926 | { |
7bb3b137 JW |
4927 | MAILBOX_t *mb; |
4928 | IOCB_t *icmd; | |
4929 | RPS_RSP *rps_rsp; | |
4930 | uint8_t *pcmd; | |
4931 | struct lpfc_iocbq *elsiocb; | |
4932 | struct lpfc_nodelist *ndlp; | |
4933 | uint16_t xri, status; | |
4934 | uint32_t cmdsize; | |
4935 | ||
04c68496 | 4936 | mb = &pmb->u.mb; |
7bb3b137 JW |
4937 | |
4938 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
4939 | xri = (uint16_t) ((unsigned long)(pmb->context1)); | |
041976fb RD |
4940 | pmb->context1 = NULL; |
4941 | pmb->context2 = NULL; | |
7bb3b137 JW |
4942 | |
4943 | if (mb->mbxStatus) { | |
329f9bc7 | 4944 | mempool_free(pmb, phba->mbox_mem_pool); |
7bb3b137 JW |
4945 | return; |
4946 | } | |
4947 | ||
4948 | cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t); | |
329f9bc7 | 4949 | mempool_free(pmb, phba->mbox_mem_pool); |
2e0fef85 JS |
4950 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, |
4951 | lpfc_max_els_tries, ndlp, | |
4952 | ndlp->nlp_DID, ELS_CMD_ACC); | |
fa4066b6 JS |
4953 | |
4954 | /* Decrement the ndlp reference count from previous mbox command */ | |
329f9bc7 | 4955 | lpfc_nlp_put(ndlp); |
fa4066b6 | 4956 | |
c9f8735b | 4957 | if (!elsiocb) |
7bb3b137 | 4958 | return; |
7bb3b137 JW |
4959 | |
4960 | icmd = &elsiocb->iocb; | |
4961 | icmd->ulpContext = xri; | |
4962 | ||
4963 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
4964 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 4965 | pcmd += sizeof(uint32_t); /* Skip past command */ |
7bb3b137 JW |
4966 | rps_rsp = (RPS_RSP *)pcmd; |
4967 | ||
4968 | if (phba->fc_topology != TOPOLOGY_LOOP) | |
4969 | status = 0x10; | |
4970 | else | |
4971 | status = 0x8; | |
2e0fef85 | 4972 | if (phba->pport->fc_flag & FC_FABRIC) |
7bb3b137 JW |
4973 | status |= 0x4; |
4974 | ||
4975 | rps_rsp->rsvd1 = 0; | |
09372820 JS |
4976 | rps_rsp->portStatus = cpu_to_be16(status); |
4977 | rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
4978 | rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
4979 | rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
4980 | rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
4981 | rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
4982 | rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
7bb3b137 | 4983 | /* Xmit ELS RPS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4984 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, |
4985 | "0118 Xmit ELS RPS ACC response tag x%x xri x%x, " | |
4986 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
4987 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
4988 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
4989 | ndlp->nlp_rpi); | |
858c9f6c | 4990 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 4991 | phba->fc_stat.elsXmitACC++; |
3772a991 | 4992 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) |
7bb3b137 | 4993 | lpfc_els_free_iocb(phba, elsiocb); |
7bb3b137 JW |
4994 | return; |
4995 | } | |
4996 | ||
e59058c4 | 4997 | /** |
12265f68 JS |
4998 | * lpfc_els_rcv_rls - Process an unsolicited rls iocb |
4999 | * @vport: pointer to a host virtual N_Port data structure. | |
5000 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5001 | * @ndlp: pointer to a node-list data structure. | |
5002 | * | |
5003 | * This routine processes Read Port Status (RPL) IOCB received as an | |
5004 | * ELS unsolicited event. It first checks the remote port state. If the | |
5005 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5006 | * state, it invokes the lpfc_els_rsl_reject() routine to send the reject | |
5007 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
5008 | * for reading the HBA link statistics. It is for the callback function, | |
5009 | * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
5010 | * to actually sending out RPL Accept (ACC) response. | |
5011 | * | |
5012 | * Return codes | |
5013 | * 0 - Successfully processed rls iocb (currently always return 0) | |
5014 | **/ | |
5015 | static int | |
5016 | lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5017 | struct lpfc_nodelist *ndlp) | |
5018 | { | |
5019 | struct lpfc_hba *phba = vport->phba; | |
5020 | LPFC_MBOXQ_t *mbox; | |
5021 | struct lpfc_dmabuf *pcmd; | |
5022 | struct ls_rjt stat; | |
5023 | ||
5024 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && | |
5025 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) | |
5026 | /* reject the unsolicited RPS request and done with it */ | |
5027 | goto reject_out; | |
5028 | ||
5029 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5030 | ||
5031 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); | |
5032 | if (mbox) { | |
5033 | lpfc_read_lnk_stat(phba, mbox); | |
5034 | mbox->context1 = | |
5035 | (void *)((unsigned long) cmdiocb->iocb.ulpContext); | |
5036 | mbox->context2 = lpfc_nlp_get(ndlp); | |
5037 | mbox->vport = vport; | |
5038 | mbox->mbox_cmpl = lpfc_els_rsp_rls_acc; | |
5039 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) | |
5040 | != MBX_NOT_FINISHED) | |
5041 | /* Mbox completion will send ELS Response */ | |
5042 | return 0; | |
5043 | /* Decrement reference count used for the failed mbox | |
5044 | * command. | |
5045 | */ | |
5046 | lpfc_nlp_put(ndlp); | |
5047 | mempool_free(mbox, phba->mbox_mem_pool); | |
5048 | } | |
5049 | reject_out: | |
5050 | /* issue rejection response */ | |
5051 | stat.un.b.lsRjtRsvd0 = 0; | |
5052 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5053 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5054 | stat.un.b.vendorUnique = 0; | |
5055 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); | |
5056 | return 0; | |
5057 | } | |
5058 | ||
5059 | /** | |
5060 | * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb | |
5061 | * @vport: pointer to a host virtual N_Port data structure. | |
5062 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5063 | * @ndlp: pointer to a node-list data structure. | |
5064 | * | |
5065 | * This routine processes Read Timout Value (RTV) IOCB received as an | |
5066 | * ELS unsolicited event. It first checks the remote port state. If the | |
5067 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5068 | * state, it invokes the lpfc_els_rsl_reject() routine to send the reject | |
5069 | * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout | |
5070 | * Value (RTV) unsolicited IOCB event. | |
5071 | * | |
5072 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5073 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5074 | * will be stored into the context1 field of the IOCB for the completion | |
5075 | * callback function to the RPS Accept Response ELS IOCB command. | |
5076 | * | |
5077 | * Return codes | |
5078 | * 0 - Successfully processed rtv iocb (currently always return 0) | |
5079 | **/ | |
5080 | static int | |
5081 | lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5082 | struct lpfc_nodelist *ndlp) | |
5083 | { | |
5084 | struct lpfc_hba *phba = vport->phba; | |
5085 | struct ls_rjt stat; | |
5086 | struct RTV_RSP *rtv_rsp; | |
5087 | uint8_t *pcmd; | |
5088 | struct lpfc_iocbq *elsiocb; | |
5089 | uint32_t cmdsize; | |
5090 | ||
5091 | ||
5092 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && | |
5093 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) | |
5094 | /* reject the unsolicited RPS request and done with it */ | |
5095 | goto reject_out; | |
5096 | ||
5097 | cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t); | |
5098 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, | |
5099 | lpfc_max_els_tries, ndlp, | |
5100 | ndlp->nlp_DID, ELS_CMD_ACC); | |
5101 | ||
5102 | if (!elsiocb) | |
5103 | return 1; | |
5104 | ||
5105 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5106 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
5107 | pcmd += sizeof(uint32_t); /* Skip past command */ | |
5108 | ||
5109 | /* use the command's xri in the response */ | |
5110 | elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; | |
5111 | ||
5112 | rtv_rsp = (struct RTV_RSP *)pcmd; | |
5113 | ||
5114 | /* populate RTV payload */ | |
5115 | rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */ | |
5116 | rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov); | |
5117 | bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0); | |
5118 | bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */ | |
5119 | rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov); | |
5120 | ||
5121 | /* Xmit ELS RLS ACC response tag <ulpIoTag> */ | |
5122 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, | |
5123 | "2875 Xmit ELS RTV ACC response tag x%x xri x%x, " | |
5124 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, " | |
5125 | "Data: x%x x%x x%x\n", | |
5126 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5127 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5128 | ndlp->nlp_rpi, | |
5129 | rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov); | |
5130 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
5131 | phba->fc_stat.elsXmitACC++; | |
5132 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) | |
5133 | lpfc_els_free_iocb(phba, elsiocb); | |
5134 | return 0; | |
5135 | ||
5136 | reject_out: | |
5137 | /* issue rejection response */ | |
5138 | stat.un.b.lsRjtRsvd0 = 0; | |
5139 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5140 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5141 | stat.un.b.vendorUnique = 0; | |
5142 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); | |
5143 | return 0; | |
5144 | } | |
5145 | ||
5146 | /* lpfc_els_rcv_rps - Process an unsolicited rps iocb | |
e59058c4 JS |
5147 | * @vport: pointer to a host virtual N_Port data structure. |
5148 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5149 | * @ndlp: pointer to a node-list data structure. | |
5150 | * | |
5151 | * This routine processes Read Port Status (RPS) IOCB received as an | |
5152 | * ELS unsolicited event. It first checks the remote port state. If the | |
5153 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5154 | * state, it invokes the lpfc_els_rsp_reject() routine to send the reject | |
5155 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
5156 | * for reading the HBA link statistics. It is for the callback function, | |
5157 | * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
5158 | * to actually sending out RPS Accept (ACC) response. | |
5159 | * | |
5160 | * Return codes | |
5161 | * 0 - Successfully processed rps iocb (currently always return 0) | |
5162 | **/ | |
7bb3b137 | 5163 | static int |
2e0fef85 JS |
5164 | lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5165 | struct lpfc_nodelist *ndlp) | |
dea3101e | 5166 | { |
2e0fef85 | 5167 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 5168 | uint32_t *lp; |
7bb3b137 JW |
5169 | uint8_t flag; |
5170 | LPFC_MBOXQ_t *mbox; | |
5171 | struct lpfc_dmabuf *pcmd; | |
5172 | RPS *rps; | |
5173 | struct ls_rjt stat; | |
5174 | ||
2fe165b6 | 5175 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
90160e01 JS |
5176 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) |
5177 | /* reject the unsolicited RPS request and done with it */ | |
5178 | goto reject_out; | |
7bb3b137 JW |
5179 | |
5180 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5181 | lp = (uint32_t *) pcmd->virt; | |
5182 | flag = (be32_to_cpu(*lp++) & 0xf); | |
5183 | rps = (RPS *) lp; | |
5184 | ||
5185 | if ((flag == 0) || | |
5186 | ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) || | |
2e0fef85 | 5187 | ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname, |
92d7f7b0 | 5188 | sizeof(struct lpfc_name)) == 0))) { |
2e0fef85 | 5189 | |
92d7f7b0 JS |
5190 | printk("Fix me....\n"); |
5191 | dump_stack(); | |
2e0fef85 JS |
5192 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); |
5193 | if (mbox) { | |
7bb3b137 JW |
5194 | lpfc_read_lnk_stat(phba, mbox); |
5195 | mbox->context1 = | |
92d7f7b0 | 5196 | (void *)((unsigned long) cmdiocb->iocb.ulpContext); |
329f9bc7 | 5197 | mbox->context2 = lpfc_nlp_get(ndlp); |
92d7f7b0 | 5198 | mbox->vport = vport; |
7bb3b137 | 5199 | mbox->mbox_cmpl = lpfc_els_rsp_rps_acc; |
fa4066b6 | 5200 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
0b727fea | 5201 | != MBX_NOT_FINISHED) |
7bb3b137 JW |
5202 | /* Mbox completion will send ELS Response */ |
5203 | return 0; | |
fa4066b6 JS |
5204 | /* Decrement reference count used for the failed mbox |
5205 | * command. | |
5206 | */ | |
329f9bc7 | 5207 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
5208 | mempool_free(mbox, phba->mbox_mem_pool); |
5209 | } | |
5210 | } | |
90160e01 JS |
5211 | |
5212 | reject_out: | |
5213 | /* issue rejection response */ | |
7bb3b137 JW |
5214 | stat.un.b.lsRjtRsvd0 = 0; |
5215 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5216 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5217 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 5218 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
5219 | return 0; |
5220 | } | |
5221 | ||
e59058c4 | 5222 | /** |
3621a710 | 5223 | * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command |
e59058c4 JS |
5224 | * @vport: pointer to a host virtual N_Port data structure. |
5225 | * @cmdsize: size of the ELS command. | |
5226 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
5227 | * @ndlp: pointer to a node-list data structure. | |
5228 | * | |
5229 | * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command. | |
5230 | * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL. | |
5231 | * | |
5232 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5233 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5234 | * will be stored into the context1 field of the IOCB for the completion | |
5235 | * callback function to the RPL Accept Response ELS command. | |
5236 | * | |
5237 | * Return code | |
5238 | * 0 - Successfully issued ACC RPL ELS command | |
5239 | * 1 - Failed to issue ACC RPL ELS command | |
5240 | **/ | |
082c0266 | 5241 | static int |
2e0fef85 JS |
5242 | lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, |
5243 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
7bb3b137 | 5244 | { |
2e0fef85 JS |
5245 | struct lpfc_hba *phba = vport->phba; |
5246 | IOCB_t *icmd, *oldcmd; | |
7bb3b137 JW |
5247 | RPL_RSP rpl_rsp; |
5248 | struct lpfc_iocbq *elsiocb; | |
7bb3b137 | 5249 | uint8_t *pcmd; |
dea3101e | 5250 | |
2e0fef85 JS |
5251 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
5252 | ndlp->nlp_DID, ELS_CMD_ACC); | |
7bb3b137 | 5253 | |
488d1469 | 5254 | if (!elsiocb) |
7bb3b137 | 5255 | return 1; |
488d1469 | 5256 | |
7bb3b137 JW |
5257 | icmd = &elsiocb->iocb; |
5258 | oldcmd = &oldiocb->iocb; | |
5259 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
5260 | ||
5261 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5262 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 5263 | pcmd += sizeof(uint16_t); |
7bb3b137 JW |
5264 | *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize); |
5265 | pcmd += sizeof(uint16_t); | |
5266 | ||
5267 | /* Setup the RPL ACC payload */ | |
5268 | rpl_rsp.listLen = be32_to_cpu(1); | |
5269 | rpl_rsp.index = 0; | |
5270 | rpl_rsp.port_num_blk.portNum = 0; | |
2e0fef85 JS |
5271 | rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID); |
5272 | memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname, | |
7bb3b137 | 5273 | sizeof(struct lpfc_name)); |
7bb3b137 | 5274 | memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t)); |
7bb3b137 | 5275 | /* Xmit ELS RPL ACC response tag <ulpIoTag> */ |
e8b62011 JS |
5276 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5277 | "0120 Xmit ELS RPL ACC response tag x%x " | |
5278 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
5279 | "rpi x%x\n", | |
5280 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5281 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5282 | ndlp->nlp_rpi); | |
858c9f6c | 5283 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 5284 | phba->fc_stat.elsXmitACC++; |
3772a991 JS |
5285 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
5286 | IOCB_ERROR) { | |
7bb3b137 JW |
5287 | lpfc_els_free_iocb(phba, elsiocb); |
5288 | return 1; | |
5289 | } | |
5290 | return 0; | |
5291 | } | |
5292 | ||
e59058c4 | 5293 | /** |
3621a710 | 5294 | * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb |
e59058c4 JS |
5295 | * @vport: pointer to a host virtual N_Port data structure. |
5296 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5297 | * @ndlp: pointer to a node-list data structure. | |
5298 | * | |
5299 | * This routine processes Read Port List (RPL) IOCB received as an ELS | |
5300 | * unsolicited event. It first checks the remote port state. If the remote | |
5301 | * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it | |
5302 | * invokes the lpfc_els_rsp_reject() routine to send reject response. | |
5303 | * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine | |
5304 | * to accept the RPL. | |
5305 | * | |
5306 | * Return code | |
5307 | * 0 - Successfully processed rpl iocb (currently always return 0) | |
5308 | **/ | |
7bb3b137 | 5309 | static int |
2e0fef85 JS |
5310 | lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5311 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
5312 | { |
5313 | struct lpfc_dmabuf *pcmd; | |
5314 | uint32_t *lp; | |
5315 | uint32_t maxsize; | |
5316 | uint16_t cmdsize; | |
5317 | RPL *rpl; | |
5318 | struct ls_rjt stat; | |
5319 | ||
2fe165b6 JW |
5320 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
5321 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { | |
90160e01 | 5322 | /* issue rejection response */ |
7bb3b137 JW |
5323 | stat.un.b.lsRjtRsvd0 = 0; |
5324 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5325 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5326 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
5327 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
5328 | NULL); | |
90160e01 JS |
5329 | /* rejected the unsolicited RPL request and done with it */ |
5330 | return 0; | |
7bb3b137 JW |
5331 | } |
5332 | ||
dea3101e | 5333 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
5334 | lp = (uint32_t *) pcmd->virt; | |
7bb3b137 | 5335 | rpl = (RPL *) (lp + 1); |
7bb3b137 | 5336 | maxsize = be32_to_cpu(rpl->maxsize); |
dea3101e | 5337 | |
7bb3b137 JW |
5338 | /* We support only one port */ |
5339 | if ((rpl->index == 0) && | |
5340 | ((maxsize == 0) || | |
5341 | ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) { | |
5342 | cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP); | |
2fe165b6 | 5343 | } else { |
7bb3b137 JW |
5344 | cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t); |
5345 | } | |
2e0fef85 | 5346 | lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp); |
dea3101e | 5347 | |
5348 | return 0; | |
5349 | } | |
5350 | ||
e59058c4 | 5351 | /** |
3621a710 | 5352 | * lpfc_els_rcv_farp - Process an unsolicited farp request els command |
e59058c4 JS |
5353 | * @vport: pointer to a virtual N_Port data structure. |
5354 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5355 | * @ndlp: pointer to a node-list data structure. | |
5356 | * | |
5357 | * This routine processes Fibre Channel Address Resolution Protocol | |
5358 | * (FARP) Request IOCB received as an ELS unsolicited event. Currently, | |
5359 | * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such, | |
5360 | * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the | |
5361 | * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the | |
5362 | * remote PortName is compared against the FC PortName stored in the @vport | |
5363 | * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is | |
5364 | * compared against the FC NodeName stored in the @vport data structure. | |
5365 | * If any of these matches and the FARP_REQUEST_FARPR flag is set in the | |
5366 | * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is | |
5367 | * invoked to send out FARP Response to the remote node. Before sending the | |
5368 | * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP | |
5369 | * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi() | |
5370 | * routine is invoked to log into the remote port first. | |
5371 | * | |
5372 | * Return code | |
5373 | * 0 - Either the FARP Match Mode not supported or successfully processed | |
5374 | **/ | |
dea3101e | 5375 | static int |
2e0fef85 JS |
5376 | lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5377 | struct lpfc_nodelist *ndlp) | |
dea3101e | 5378 | { |
5379 | struct lpfc_dmabuf *pcmd; | |
5380 | uint32_t *lp; | |
5381 | IOCB_t *icmd; | |
5382 | FARP *fp; | |
5383 | uint32_t cmd, cnt, did; | |
5384 | ||
5385 | icmd = &cmdiocb->iocb; | |
5386 | did = icmd->un.elsreq64.remoteID; | |
5387 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5388 | lp = (uint32_t *) pcmd->virt; | |
5389 | ||
5390 | cmd = *lp++; | |
5391 | fp = (FARP *) lp; | |
dea3101e | 5392 | /* FARP-REQ received from DID <did> */ |
e8b62011 JS |
5393 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5394 | "0601 FARP-REQ received from DID x%x\n", did); | |
dea3101e | 5395 | /* We will only support match on WWPN or WWNN */ |
5396 | if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { | |
c9f8735b | 5397 | return 0; |
dea3101e | 5398 | } |
5399 | ||
5400 | cnt = 0; | |
5401 | /* If this FARP command is searching for my portname */ | |
5402 | if (fp->Mflags & FARP_MATCH_PORT) { | |
2e0fef85 | 5403 | if (memcmp(&fp->RportName, &vport->fc_portname, |
92d7f7b0 | 5404 | sizeof(struct lpfc_name)) == 0) |
dea3101e | 5405 | cnt = 1; |
5406 | } | |
5407 | ||
5408 | /* If this FARP command is searching for my nodename */ | |
5409 | if (fp->Mflags & FARP_MATCH_NODE) { | |
2e0fef85 | 5410 | if (memcmp(&fp->RnodeName, &vport->fc_nodename, |
92d7f7b0 | 5411 | sizeof(struct lpfc_name)) == 0) |
dea3101e | 5412 | cnt = 1; |
5413 | } | |
5414 | ||
5415 | if (cnt) { | |
5416 | if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || | |
5417 | (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { | |
5418 | /* Log back into the node before sending the FARP. */ | |
5419 | if (fp->Rflags & FARP_REQUEST_PLOGI) { | |
5024ab17 | 5420 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 5421 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 5422 | NLP_STE_PLOGI_ISSUE); |
2e0fef85 | 5423 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); |
dea3101e | 5424 | } |
5425 | ||
5426 | /* Send a FARP response to that node */ | |
2e0fef85 JS |
5427 | if (fp->Rflags & FARP_REQUEST_FARPR) |
5428 | lpfc_issue_els_farpr(vport, did, 0); | |
dea3101e | 5429 | } |
5430 | } | |
c9f8735b | 5431 | return 0; |
dea3101e | 5432 | } |
5433 | ||
e59058c4 | 5434 | /** |
3621a710 | 5435 | * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb |
e59058c4 JS |
5436 | * @vport: pointer to a host virtual N_Port data structure. |
5437 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5438 | * @ndlp: pointer to a node-list data structure. | |
5439 | * | |
5440 | * This routine processes Fibre Channel Address Resolution Protocol | |
5441 | * Response (FARPR) IOCB received as an ELS unsolicited event. It simply | |
5442 | * invokes the lpfc_els_rsp_acc() routine to the remote node to accept | |
5443 | * the FARP response request. | |
5444 | * | |
5445 | * Return code | |
5446 | * 0 - Successfully processed FARPR IOCB (currently always return 0) | |
5447 | **/ | |
dea3101e | 5448 | static int |
2e0fef85 JS |
5449 | lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5450 | struct lpfc_nodelist *ndlp) | |
dea3101e | 5451 | { |
5452 | struct lpfc_dmabuf *pcmd; | |
5453 | uint32_t *lp; | |
5454 | IOCB_t *icmd; | |
5455 | uint32_t cmd, did; | |
5456 | ||
5457 | icmd = &cmdiocb->iocb; | |
5458 | did = icmd->un.elsreq64.remoteID; | |
5459 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5460 | lp = (uint32_t *) pcmd->virt; | |
5461 | ||
5462 | cmd = *lp++; | |
5463 | /* FARP-RSP received from DID <did> */ | |
e8b62011 JS |
5464 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5465 | "0600 FARP-RSP received from DID x%x\n", did); | |
dea3101e | 5466 | /* ACCEPT the Farp resp request */ |
51ef4c26 | 5467 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 5468 | |
5469 | return 0; | |
5470 | } | |
5471 | ||
e59058c4 | 5472 | /** |
3621a710 | 5473 | * lpfc_els_rcv_fan - Process an unsolicited fan iocb command |
e59058c4 JS |
5474 | * @vport: pointer to a host virtual N_Port data structure. |
5475 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5476 | * @fan_ndlp: pointer to a node-list data structure. | |
5477 | * | |
5478 | * This routine processes a Fabric Address Notification (FAN) IOCB | |
5479 | * command received as an ELS unsolicited event. The FAN ELS command will | |
5480 | * only be processed on a physical port (i.e., the @vport represents the | |
5481 | * physical port). The fabric NodeName and PortName from the FAN IOCB are | |
5482 | * compared against those in the phba data structure. If any of those is | |
5483 | * different, the lpfc_initial_flogi() routine is invoked to initialize | |
5484 | * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise, | |
5485 | * if both of those are identical, the lpfc_issue_fabric_reglogin() routine | |
5486 | * is invoked to register login to the fabric. | |
5487 | * | |
5488 | * Return code | |
5489 | * 0 - Successfully processed fan iocb (currently always return 0). | |
5490 | **/ | |
dea3101e | 5491 | static int |
2e0fef85 JS |
5492 | lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5493 | struct lpfc_nodelist *fan_ndlp) | |
dea3101e | 5494 | { |
0d2b6b83 | 5495 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 5496 | uint32_t *lp; |
5024ab17 | 5497 | FAN *fp; |
dea3101e | 5498 | |
0d2b6b83 JS |
5499 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n"); |
5500 | lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt; | |
5501 | fp = (FAN *) ++lp; | |
5024ab17 | 5502 | /* FAN received; Fan does not have a reply sequence */ |
0d2b6b83 JS |
5503 | if ((vport == phba->pport) && |
5504 | (vport->port_state == LPFC_LOCAL_CFG_LINK)) { | |
5024ab17 | 5505 | if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName, |
0d2b6b83 | 5506 | sizeof(struct lpfc_name))) || |
5024ab17 | 5507 | (memcmp(&phba->fc_fabparam.portName, &fp->FportName, |
0d2b6b83 JS |
5508 | sizeof(struct lpfc_name)))) { |
5509 | /* This port has switched fabrics. FLOGI is required */ | |
2e0fef85 | 5510 | lpfc_initial_flogi(vport); |
0d2b6b83 JS |
5511 | } else { |
5512 | /* FAN verified - skip FLOGI */ | |
5513 | vport->fc_myDID = vport->fc_prevDID; | |
6fb120a7 JS |
5514 | if (phba->sli_rev < LPFC_SLI_REV4) |
5515 | lpfc_issue_fabric_reglogin(vport); | |
5516 | else | |
5517 | lpfc_issue_reg_vfi(vport); | |
5024ab17 | 5518 | } |
dea3101e | 5519 | } |
c9f8735b | 5520 | return 0; |
dea3101e | 5521 | } |
5522 | ||
e59058c4 | 5523 | /** |
3621a710 | 5524 | * lpfc_els_timeout - Handler funciton to the els timer |
e59058c4 JS |
5525 | * @ptr: holder for the timer function associated data. |
5526 | * | |
5527 | * This routine is invoked by the ELS timer after timeout. It posts the ELS | |
5528 | * timer timeout event by setting the WORKER_ELS_TMO bit to the work port | |
5529 | * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake | |
5530 | * up the worker thread. It is for the worker thread to invoke the routine | |
5531 | * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO. | |
5532 | **/ | |
dea3101e | 5533 | void |
5534 | lpfc_els_timeout(unsigned long ptr) | |
5535 | { | |
2e0fef85 JS |
5536 | struct lpfc_vport *vport = (struct lpfc_vport *) ptr; |
5537 | struct lpfc_hba *phba = vport->phba; | |
5e9d9b82 | 5538 | uint32_t tmo_posted; |
dea3101e | 5539 | unsigned long iflag; |
5540 | ||
2e0fef85 | 5541 | spin_lock_irqsave(&vport->work_port_lock, iflag); |
5e9d9b82 JS |
5542 | tmo_posted = vport->work_port_events & WORKER_ELS_TMO; |
5543 | if (!tmo_posted) | |
2e0fef85 | 5544 | vport->work_port_events |= WORKER_ELS_TMO; |
5e9d9b82 | 5545 | spin_unlock_irqrestore(&vport->work_port_lock, iflag); |
92d7f7b0 | 5546 | |
5e9d9b82 JS |
5547 | if (!tmo_posted) |
5548 | lpfc_worker_wake_up(phba); | |
dea3101e | 5549 | return; |
5550 | } | |
5551 | ||
2a9bf3d0 | 5552 | |
e59058c4 | 5553 | /** |
3621a710 | 5554 | * lpfc_els_timeout_handler - Process an els timeout event |
e59058c4 JS |
5555 | * @vport: pointer to a virtual N_Port data structure. |
5556 | * | |
5557 | * This routine is the actual handler function that processes an ELS timeout | |
5558 | * event. It walks the ELS ring to get and abort all the IOCBs (except the | |
5559 | * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by | |
5560 | * invoking the lpfc_sli_issue_abort_iotag() routine. | |
5561 | **/ | |
dea3101e | 5562 | void |
2e0fef85 | 5563 | lpfc_els_timeout_handler(struct lpfc_vport *vport) |
dea3101e | 5564 | { |
2e0fef85 | 5565 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 5566 | struct lpfc_sli_ring *pring; |
5567 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
5568 | IOCB_t *cmd = NULL; | |
5569 | struct lpfc_dmabuf *pcmd; | |
2e0fef85 | 5570 | uint32_t els_command = 0; |
dea3101e | 5571 | uint32_t timeout; |
2e0fef85 | 5572 | uint32_t remote_ID = 0xffffffff; |
2a9bf3d0 JS |
5573 | LIST_HEAD(txcmplq_completions); |
5574 | LIST_HEAD(abort_list); | |
5575 | ||
dea3101e | 5576 | |
dea3101e | 5577 | timeout = (uint32_t)(phba->fc_ratov << 1); |
5578 | ||
5579 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
dea3101e | 5580 | |
2a9bf3d0 JS |
5581 | spin_lock_irq(&phba->hbalock); |
5582 | list_splice_init(&pring->txcmplq, &txcmplq_completions); | |
5583 | spin_unlock_irq(&phba->hbalock); | |
5584 | ||
5585 | list_for_each_entry_safe(piocb, tmp_iocb, &txcmplq_completions, list) { | |
dea3101e | 5586 | cmd = &piocb->iocb; |
5587 | ||
2e0fef85 JS |
5588 | if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 || |
5589 | piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || | |
5590 | piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) | |
dea3101e | 5591 | continue; |
2e0fef85 JS |
5592 | |
5593 | if (piocb->vport != vport) | |
5594 | continue; | |
5595 | ||
dea3101e | 5596 | pcmd = (struct lpfc_dmabuf *) piocb->context2; |
2e0fef85 JS |
5597 | if (pcmd) |
5598 | els_command = *(uint32_t *) (pcmd->virt); | |
dea3101e | 5599 | |
92d7f7b0 JS |
5600 | if (els_command == ELS_CMD_FARP || |
5601 | els_command == ELS_CMD_FARPR || | |
5602 | els_command == ELS_CMD_FDISC) | |
5603 | continue; | |
5604 | ||
dea3101e | 5605 | if (piocb->drvrTimeout > 0) { |
92d7f7b0 | 5606 | if (piocb->drvrTimeout >= timeout) |
dea3101e | 5607 | piocb->drvrTimeout -= timeout; |
92d7f7b0 | 5608 | else |
dea3101e | 5609 | piocb->drvrTimeout = 0; |
dea3101e | 5610 | continue; |
5611 | } | |
5612 | ||
2e0fef85 JS |
5613 | remote_ID = 0xffffffff; |
5614 | if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR) | |
dea3101e | 5615 | remote_ID = cmd->un.elsreq64.remoteID; |
2e0fef85 JS |
5616 | else { |
5617 | struct lpfc_nodelist *ndlp; | |
5618 | ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext); | |
58da1ffb | 5619 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
2e0fef85 | 5620 | remote_ID = ndlp->nlp_DID; |
dea3101e | 5621 | } |
2a9bf3d0 JS |
5622 | list_add_tail(&piocb->dlist, &abort_list); |
5623 | } | |
5624 | spin_lock_irq(&phba->hbalock); | |
5625 | list_splice(&txcmplq_completions, &pring->txcmplq); | |
5626 | spin_unlock_irq(&phba->hbalock); | |
5627 | ||
5628 | list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { | |
e8b62011 | 5629 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2a9bf3d0 JS |
5630 | "0127 ELS timeout Data: x%x x%x x%x " |
5631 | "x%x\n", els_command, | |
5632 | remote_ID, cmd->ulpCommand, cmd->ulpIoTag); | |
5633 | spin_lock_irq(&phba->hbalock); | |
5634 | list_del_init(&piocb->dlist); | |
07951076 | 5635 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
2a9bf3d0 | 5636 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 5637 | } |
5a0e326d | 5638 | |
2e0fef85 JS |
5639 | if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt) |
5640 | mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); | |
dea3101e | 5641 | } |
5642 | ||
e59058c4 | 5643 | /** |
3621a710 | 5644 | * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport |
e59058c4 JS |
5645 | * @vport: pointer to a host virtual N_Port data structure. |
5646 | * | |
5647 | * This routine is used to clean up all the outstanding ELS commands on a | |
5648 | * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport() | |
5649 | * routine. After that, it walks the ELS transmit queue to remove all the | |
5650 | * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
5651 | * the IOCBs with a non-NULL completion callback function, the callback | |
5652 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
5653 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion | |
5654 | * callback function, the IOCB will simply be released. Finally, it walks | |
5655 | * the ELS transmit completion queue to issue an abort IOCB to any transmit | |
5656 | * completion queue IOCB that is associated with the @vport and is not | |
5657 | * an IOCB from libdfc (i.e., the management plane IOCBs that are not | |
5658 | * part of the discovery state machine) out to HBA by invoking the | |
5659 | * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the | |
5660 | * abort IOCB to any transmit completion queueed IOCB, it does not guarantee | |
5661 | * the IOCBs are aborted when this function returns. | |
5662 | **/ | |
dea3101e | 5663 | void |
2e0fef85 | 5664 | lpfc_els_flush_cmd(struct lpfc_vport *vport) |
dea3101e | 5665 | { |
2534ba75 | 5666 | LIST_HEAD(completions); |
2e0fef85 | 5667 | struct lpfc_hba *phba = vport->phba; |
329f9bc7 | 5668 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
dea3101e | 5669 | struct lpfc_iocbq *tmp_iocb, *piocb; |
5670 | IOCB_t *cmd = NULL; | |
92d7f7b0 JS |
5671 | |
5672 | lpfc_fabric_abort_vport(vport); | |
dea3101e | 5673 | |
2e0fef85 | 5674 | spin_lock_irq(&phba->hbalock); |
dea3101e | 5675 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { |
5676 | cmd = &piocb->iocb; | |
5677 | ||
5678 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { | |
5679 | continue; | |
5680 | } | |
5681 | ||
5682 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
329f9bc7 JS |
5683 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || |
5684 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
5685 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
5686 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
dea3101e | 5687 | continue; |
dea3101e | 5688 | |
2e0fef85 JS |
5689 | if (piocb->vport != vport) |
5690 | continue; | |
5691 | ||
2534ba75 | 5692 | list_move_tail(&piocb->list, &completions); |
1dcb58e5 | 5693 | pring->txq_cnt--; |
dea3101e | 5694 | } |
5695 | ||
5696 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
dea3101e | 5697 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { |
5698 | continue; | |
5699 | } | |
dea3101e | 5700 | |
2e0fef85 JS |
5701 | if (piocb->vport != vport) |
5702 | continue; | |
5703 | ||
07951076 | 5704 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
dea3101e | 5705 | } |
2e0fef85 | 5706 | spin_unlock_irq(&phba->hbalock); |
2534ba75 | 5707 | |
a257bf90 JS |
5708 | /* Cancell all the IOCBs from the completions list */ |
5709 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
5710 | IOERR_SLI_ABORTED); | |
2534ba75 | 5711 | |
dea3101e | 5712 | return; |
5713 | } | |
5714 | ||
e59058c4 | 5715 | /** |
3621a710 | 5716 | * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA |
e59058c4 JS |
5717 | * @phba: pointer to lpfc hba data structure. |
5718 | * | |
5719 | * This routine is used to clean up all the outstanding ELS commands on a | |
5720 | * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba() | |
5721 | * routine. After that, it walks the ELS transmit queue to remove all the | |
5722 | * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
5723 | * the IOCBs with the completion callback function associated, the callback | |
5724 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
5725 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion | |
5726 | * callback function associated, the IOCB will simply be released. Finally, | |
5727 | * it walks the ELS transmit completion queue to issue an abort IOCB to any | |
5728 | * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the | |
5729 | * management plane IOCBs that are not part of the discovery state machine) | |
5730 | * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine. | |
5731 | **/ | |
549e55cd JS |
5732 | void |
5733 | lpfc_els_flush_all_cmd(struct lpfc_hba *phba) | |
5734 | { | |
5735 | LIST_HEAD(completions); | |
5736 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
5737 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
5738 | IOCB_t *cmd = NULL; | |
5739 | ||
5740 | lpfc_fabric_abort_hba(phba); | |
5741 | spin_lock_irq(&phba->hbalock); | |
5742 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { | |
5743 | cmd = &piocb->iocb; | |
5744 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
5745 | continue; | |
5746 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
5747 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || | |
5748 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
5749 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
5750 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
5751 | continue; | |
5752 | list_move_tail(&piocb->list, &completions); | |
5753 | pring->txq_cnt--; | |
5754 | } | |
5755 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
5756 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
5757 | continue; | |
5758 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); | |
5759 | } | |
5760 | spin_unlock_irq(&phba->hbalock); | |
a257bf90 JS |
5761 | |
5762 | /* Cancel all the IOCBs from the completions list */ | |
5763 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
5764 | IOERR_SLI_ABORTED); | |
5765 | ||
549e55cd JS |
5766 | return; |
5767 | } | |
5768 | ||
ea2151b4 | 5769 | /** |
3621a710 | 5770 | * lpfc_send_els_failure_event - Posts an ELS command failure event |
ea2151b4 JS |
5771 | * @phba: Pointer to hba context object. |
5772 | * @cmdiocbp: Pointer to command iocb which reported error. | |
5773 | * @rspiocbp: Pointer to response iocb which reported error. | |
5774 | * | |
5775 | * This function sends an event when there is an ELS command | |
5776 | * failure. | |
5777 | **/ | |
5778 | void | |
5779 | lpfc_send_els_failure_event(struct lpfc_hba *phba, | |
5780 | struct lpfc_iocbq *cmdiocbp, | |
5781 | struct lpfc_iocbq *rspiocbp) | |
5782 | { | |
5783 | struct lpfc_vport *vport = cmdiocbp->vport; | |
5784 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
5785 | struct lpfc_lsrjt_event lsrjt_event; | |
5786 | struct lpfc_fabric_event_header fabric_event; | |
5787 | struct ls_rjt stat; | |
5788 | struct lpfc_nodelist *ndlp; | |
5789 | uint32_t *pcmd; | |
5790 | ||
5791 | ndlp = cmdiocbp->context1; | |
5792 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) | |
5793 | return; | |
5794 | ||
5795 | if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) { | |
5796 | lsrjt_event.header.event_type = FC_REG_ELS_EVENT; | |
5797 | lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV; | |
5798 | memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname, | |
5799 | sizeof(struct lpfc_name)); | |
5800 | memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename, | |
5801 | sizeof(struct lpfc_name)); | |
5802 | pcmd = (uint32_t *) (((struct lpfc_dmabuf *) | |
5803 | cmdiocbp->context2)->virt); | |
49198b37 | 5804 | lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0; |
ea2151b4 JS |
5805 | stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]); |
5806 | lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode; | |
5807 | lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp; | |
5808 | fc_host_post_vendor_event(shost, | |
5809 | fc_get_event_number(), | |
5810 | sizeof(lsrjt_event), | |
5811 | (char *)&lsrjt_event, | |
ddcc50f0 | 5812 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
5813 | return; |
5814 | } | |
5815 | if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) || | |
5816 | (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) { | |
5817 | fabric_event.event_type = FC_REG_FABRIC_EVENT; | |
5818 | if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) | |
5819 | fabric_event.subcategory = LPFC_EVENT_PORT_BUSY; | |
5820 | else | |
5821 | fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY; | |
5822 | memcpy(fabric_event.wwpn, &ndlp->nlp_portname, | |
5823 | sizeof(struct lpfc_name)); | |
5824 | memcpy(fabric_event.wwnn, &ndlp->nlp_nodename, | |
5825 | sizeof(struct lpfc_name)); | |
5826 | fc_host_post_vendor_event(shost, | |
5827 | fc_get_event_number(), | |
5828 | sizeof(fabric_event), | |
5829 | (char *)&fabric_event, | |
ddcc50f0 | 5830 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
5831 | return; |
5832 | } | |
5833 | ||
5834 | } | |
5835 | ||
5836 | /** | |
3621a710 | 5837 | * lpfc_send_els_event - Posts unsolicited els event |
ea2151b4 JS |
5838 | * @vport: Pointer to vport object. |
5839 | * @ndlp: Pointer FC node object. | |
5840 | * @cmd: ELS command code. | |
5841 | * | |
5842 | * This function posts an event when there is an incoming | |
5843 | * unsolicited ELS command. | |
5844 | **/ | |
5845 | static void | |
5846 | lpfc_send_els_event(struct lpfc_vport *vport, | |
5847 | struct lpfc_nodelist *ndlp, | |
ddcc50f0 | 5848 | uint32_t *payload) |
ea2151b4 | 5849 | { |
ddcc50f0 JS |
5850 | struct lpfc_els_event_header *els_data = NULL; |
5851 | struct lpfc_logo_event *logo_data = NULL; | |
ea2151b4 JS |
5852 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
5853 | ||
ddcc50f0 JS |
5854 | if (*payload == ELS_CMD_LOGO) { |
5855 | logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL); | |
5856 | if (!logo_data) { | |
5857 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
5858 | "0148 Failed to allocate memory " | |
5859 | "for LOGO event\n"); | |
5860 | return; | |
5861 | } | |
5862 | els_data = &logo_data->header; | |
5863 | } else { | |
5864 | els_data = kmalloc(sizeof(struct lpfc_els_event_header), | |
5865 | GFP_KERNEL); | |
5866 | if (!els_data) { | |
5867 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
5868 | "0149 Failed to allocate memory " | |
5869 | "for ELS event\n"); | |
5870 | return; | |
5871 | } | |
5872 | } | |
5873 | els_data->event_type = FC_REG_ELS_EVENT; | |
5874 | switch (*payload) { | |
ea2151b4 | 5875 | case ELS_CMD_PLOGI: |
ddcc50f0 | 5876 | els_data->subcategory = LPFC_EVENT_PLOGI_RCV; |
ea2151b4 JS |
5877 | break; |
5878 | case ELS_CMD_PRLO: | |
ddcc50f0 | 5879 | els_data->subcategory = LPFC_EVENT_PRLO_RCV; |
ea2151b4 JS |
5880 | break; |
5881 | case ELS_CMD_ADISC: | |
ddcc50f0 JS |
5882 | els_data->subcategory = LPFC_EVENT_ADISC_RCV; |
5883 | break; | |
5884 | case ELS_CMD_LOGO: | |
5885 | els_data->subcategory = LPFC_EVENT_LOGO_RCV; | |
5886 | /* Copy the WWPN in the LOGO payload */ | |
5887 | memcpy(logo_data->logo_wwpn, &payload[2], | |
5888 | sizeof(struct lpfc_name)); | |
ea2151b4 JS |
5889 | break; |
5890 | default: | |
e916141c | 5891 | kfree(els_data); |
ea2151b4 JS |
5892 | return; |
5893 | } | |
ddcc50f0 JS |
5894 | memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); |
5895 | memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); | |
5896 | if (*payload == ELS_CMD_LOGO) { | |
5897 | fc_host_post_vendor_event(shost, | |
5898 | fc_get_event_number(), | |
5899 | sizeof(struct lpfc_logo_event), | |
5900 | (char *)logo_data, | |
5901 | LPFC_NL_VENDOR_ID); | |
5902 | kfree(logo_data); | |
5903 | } else { | |
5904 | fc_host_post_vendor_event(shost, | |
5905 | fc_get_event_number(), | |
5906 | sizeof(struct lpfc_els_event_header), | |
5907 | (char *)els_data, | |
5908 | LPFC_NL_VENDOR_ID); | |
5909 | kfree(els_data); | |
5910 | } | |
ea2151b4 JS |
5911 | |
5912 | return; | |
5913 | } | |
5914 | ||
5915 | ||
e59058c4 | 5916 | /** |
3621a710 | 5917 | * lpfc_els_unsol_buffer - Process an unsolicited event data buffer |
e59058c4 JS |
5918 | * @phba: pointer to lpfc hba data structure. |
5919 | * @pring: pointer to a SLI ring. | |
5920 | * @vport: pointer to a host virtual N_Port data structure. | |
5921 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
5922 | * | |
5923 | * This routine is used for processing the IOCB associated with a unsolicited | |
5924 | * event. It first determines whether there is an existing ndlp that matches | |
5925 | * the DID from the unsolicited IOCB. If not, it will create a new one with | |
5926 | * the DID from the unsolicited IOCB. The ELS command from the unsolicited | |
5927 | * IOCB is then used to invoke the proper routine and to set up proper state | |
5928 | * of the discovery state machine. | |
5929 | **/ | |
ed957684 JS |
5930 | static void |
5931 | lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
92d7f7b0 | 5932 | struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) |
dea3101e | 5933 | { |
87af33fe | 5934 | struct Scsi_Host *shost; |
dea3101e | 5935 | struct lpfc_nodelist *ndlp; |
dea3101e | 5936 | struct ls_rjt stat; |
92d7f7b0 | 5937 | uint32_t *payload; |
2e0fef85 | 5938 | uint32_t cmd, did, newnode, rjt_err = 0; |
ed957684 | 5939 | IOCB_t *icmd = &elsiocb->iocb; |
dea3101e | 5940 | |
e47c9093 | 5941 | if (!vport || !(elsiocb->context2)) |
dea3101e | 5942 | goto dropit; |
2e0fef85 | 5943 | |
dea3101e | 5944 | newnode = 0; |
92d7f7b0 JS |
5945 | payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt; |
5946 | cmd = *payload; | |
ed957684 | 5947 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0) |
495a714c | 5948 | lpfc_post_buffer(phba, pring, 1); |
dea3101e | 5949 | |
858c9f6c JS |
5950 | did = icmd->un.rcvels.remoteID; |
5951 | if (icmd->ulpStatus) { | |
5952 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
5953 | "RCV Unsol ELS: status:x%x/x%x did:x%x", | |
5954 | icmd->ulpStatus, icmd->un.ulpWord[4], did); | |
dea3101e | 5955 | goto dropit; |
858c9f6c | 5956 | } |
dea3101e | 5957 | |
5958 | /* Check to see if link went down during discovery */ | |
ed957684 | 5959 | if (lpfc_els_chk_latt(vport)) |
dea3101e | 5960 | goto dropit; |
dea3101e | 5961 | |
c868595d | 5962 | /* Ignore traffic received during vport shutdown. */ |
92d7f7b0 JS |
5963 | if (vport->load_flag & FC_UNLOADING) |
5964 | goto dropit; | |
5965 | ||
2e0fef85 | 5966 | ndlp = lpfc_findnode_did(vport, did); |
c9f8735b | 5967 | if (!ndlp) { |
dea3101e | 5968 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b | 5969 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
ed957684 | 5970 | if (!ndlp) |
dea3101e | 5971 | goto dropit; |
dea3101e | 5972 | |
2e0fef85 | 5973 | lpfc_nlp_init(vport, ndlp, did); |
98c9ea5c | 5974 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
dea3101e | 5975 | newnode = 1; |
e47c9093 | 5976 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) |
dea3101e | 5977 | ndlp->nlp_type |= NLP_FABRIC; |
58da1ffb JS |
5978 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
5979 | ndlp = lpfc_enable_node(vport, ndlp, | |
5980 | NLP_STE_UNUSED_NODE); | |
5981 | if (!ndlp) | |
5982 | goto dropit; | |
5983 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
5984 | newnode = 1; | |
5985 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
5986 | ndlp->nlp_type |= NLP_FABRIC; | |
5987 | } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { | |
5988 | /* This is similar to the new node path */ | |
5989 | ndlp = lpfc_nlp_get(ndlp); | |
5990 | if (!ndlp) | |
5991 | goto dropit; | |
5992 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
5993 | newnode = 1; | |
87af33fe | 5994 | } |
dea3101e | 5995 | |
5996 | phba->fc_stat.elsRcvFrame++; | |
e47c9093 | 5997 | |
329f9bc7 | 5998 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
2e0fef85 | 5999 | elsiocb->vport = vport; |
dea3101e | 6000 | |
6001 | if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { | |
6002 | cmd &= ELS_CMD_MASK; | |
6003 | } | |
6004 | /* ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
6005 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
6006 | "0112 ELS command x%x received from NPORT x%x " | |
6007 | "Data: x%x\n", cmd, did, vport->port_state); | |
dea3101e | 6008 | switch (cmd) { |
6009 | case ELS_CMD_PLOGI: | |
858c9f6c JS |
6010 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6011 | "RCV PLOGI: did:x%x/ste:x%x flg:x%x", | |
6012 | did, vport->port_state, ndlp->nlp_flag); | |
6013 | ||
dea3101e | 6014 | phba->fc_stat.elsRcvPLOGI++; |
858c9f6c JS |
6015 | ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); |
6016 | ||
ddcc50f0 | 6017 | lpfc_send_els_event(vport, ndlp, payload); |
858c9f6c | 6018 | if (vport->port_state < LPFC_DISC_AUTH) { |
1b32f6aa JS |
6019 | if (!(phba->pport->fc_flag & FC_PT2PT) || |
6020 | (phba->pport->fc_flag & FC_PT2PT_PLOGI)) { | |
6021 | rjt_err = LSRJT_UNABLE_TPC; | |
6022 | break; | |
6023 | } | |
6024 | /* We get here, and drop thru, if we are PT2PT with | |
6025 | * another NPort and the other side has initiated | |
6026 | * the PLOGI before responding to our FLOGI. | |
6027 | */ | |
dea3101e | 6028 | } |
87af33fe JS |
6029 | |
6030 | shost = lpfc_shost_from_vport(vport); | |
6031 | spin_lock_irq(shost->host_lock); | |
6032 | ndlp->nlp_flag &= ~NLP_TARGET_REMOVE; | |
6033 | spin_unlock_irq(shost->host_lock); | |
6034 | ||
2e0fef85 JS |
6035 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6036 | NLP_EVT_RCV_PLOGI); | |
858c9f6c | 6037 | |
dea3101e | 6038 | break; |
6039 | case ELS_CMD_FLOGI: | |
858c9f6c JS |
6040 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6041 | "RCV FLOGI: did:x%x/ste:x%x flg:x%x", | |
6042 | did, vport->port_state, ndlp->nlp_flag); | |
6043 | ||
dea3101e | 6044 | phba->fc_stat.elsRcvFLOGI++; |
51ef4c26 | 6045 | lpfc_els_rcv_flogi(vport, elsiocb, ndlp); |
87af33fe | 6046 | if (newnode) |
98c9ea5c | 6047 | lpfc_nlp_put(ndlp); |
dea3101e | 6048 | break; |
6049 | case ELS_CMD_LOGO: | |
858c9f6c JS |
6050 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6051 | "RCV LOGO: did:x%x/ste:x%x flg:x%x", | |
6052 | did, vport->port_state, ndlp->nlp_flag); | |
6053 | ||
dea3101e | 6054 | phba->fc_stat.elsRcvLOGO++; |
ddcc50f0 | 6055 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 6056 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6057 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e | 6058 | break; |
6059 | } | |
2e0fef85 | 6060 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO); |
dea3101e | 6061 | break; |
6062 | case ELS_CMD_PRLO: | |
858c9f6c JS |
6063 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6064 | "RCV PRLO: did:x%x/ste:x%x flg:x%x", | |
6065 | did, vport->port_state, ndlp->nlp_flag); | |
6066 | ||
dea3101e | 6067 | phba->fc_stat.elsRcvPRLO++; |
ddcc50f0 | 6068 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 6069 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6070 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e | 6071 | break; |
6072 | } | |
2e0fef85 | 6073 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); |
dea3101e | 6074 | break; |
6075 | case ELS_CMD_RSCN: | |
6076 | phba->fc_stat.elsRcvRSCN++; | |
51ef4c26 | 6077 | lpfc_els_rcv_rscn(vport, elsiocb, ndlp); |
87af33fe | 6078 | if (newnode) |
98c9ea5c | 6079 | lpfc_nlp_put(ndlp); |
dea3101e | 6080 | break; |
6081 | case ELS_CMD_ADISC: | |
858c9f6c JS |
6082 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6083 | "RCV ADISC: did:x%x/ste:x%x flg:x%x", | |
6084 | did, vport->port_state, ndlp->nlp_flag); | |
6085 | ||
ddcc50f0 | 6086 | lpfc_send_els_event(vport, ndlp, payload); |
dea3101e | 6087 | phba->fc_stat.elsRcvADISC++; |
2e0fef85 | 6088 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6089 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e | 6090 | break; |
6091 | } | |
2e0fef85 JS |
6092 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6093 | NLP_EVT_RCV_ADISC); | |
dea3101e | 6094 | break; |
6095 | case ELS_CMD_PDISC: | |
858c9f6c JS |
6096 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6097 | "RCV PDISC: did:x%x/ste:x%x flg:x%x", | |
6098 | did, vport->port_state, ndlp->nlp_flag); | |
6099 | ||
dea3101e | 6100 | phba->fc_stat.elsRcvPDISC++; |
2e0fef85 | 6101 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6102 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e | 6103 | break; |
6104 | } | |
2e0fef85 JS |
6105 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6106 | NLP_EVT_RCV_PDISC); | |
dea3101e | 6107 | break; |
6108 | case ELS_CMD_FARPR: | |
858c9f6c JS |
6109 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6110 | "RCV FARPR: did:x%x/ste:x%x flg:x%x", | |
6111 | did, vport->port_state, ndlp->nlp_flag); | |
6112 | ||
dea3101e | 6113 | phba->fc_stat.elsRcvFARPR++; |
2e0fef85 | 6114 | lpfc_els_rcv_farpr(vport, elsiocb, ndlp); |
dea3101e | 6115 | break; |
6116 | case ELS_CMD_FARP: | |
858c9f6c JS |
6117 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6118 | "RCV FARP: did:x%x/ste:x%x flg:x%x", | |
6119 | did, vport->port_state, ndlp->nlp_flag); | |
6120 | ||
dea3101e | 6121 | phba->fc_stat.elsRcvFARP++; |
2e0fef85 | 6122 | lpfc_els_rcv_farp(vport, elsiocb, ndlp); |
dea3101e | 6123 | break; |
6124 | case ELS_CMD_FAN: | |
858c9f6c JS |
6125 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6126 | "RCV FAN: did:x%x/ste:x%x flg:x%x", | |
6127 | did, vport->port_state, ndlp->nlp_flag); | |
6128 | ||
dea3101e | 6129 | phba->fc_stat.elsRcvFAN++; |
2e0fef85 | 6130 | lpfc_els_rcv_fan(vport, elsiocb, ndlp); |
dea3101e | 6131 | break; |
dea3101e | 6132 | case ELS_CMD_PRLI: |
858c9f6c JS |
6133 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6134 | "RCV PRLI: did:x%x/ste:x%x flg:x%x", | |
6135 | did, vport->port_state, ndlp->nlp_flag); | |
6136 | ||
dea3101e | 6137 | phba->fc_stat.elsRcvPRLI++; |
2e0fef85 | 6138 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6139 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e | 6140 | break; |
6141 | } | |
2e0fef85 | 6142 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI); |
dea3101e | 6143 | break; |
7bb3b137 | 6144 | case ELS_CMD_LIRR: |
858c9f6c JS |
6145 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6146 | "RCV LIRR: did:x%x/ste:x%x flg:x%x", | |
6147 | did, vport->port_state, ndlp->nlp_flag); | |
6148 | ||
7bb3b137 | 6149 | phba->fc_stat.elsRcvLIRR++; |
2e0fef85 | 6150 | lpfc_els_rcv_lirr(vport, elsiocb, ndlp); |
87af33fe | 6151 | if (newnode) |
98c9ea5c | 6152 | lpfc_nlp_put(ndlp); |
7bb3b137 | 6153 | break; |
12265f68 JS |
6154 | case ELS_CMD_RLS: |
6155 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6156 | "RCV RLS: did:x%x/ste:x%x flg:x%x", | |
6157 | did, vport->port_state, ndlp->nlp_flag); | |
6158 | ||
6159 | phba->fc_stat.elsRcvRLS++; | |
6160 | lpfc_els_rcv_rls(vport, elsiocb, ndlp); | |
6161 | if (newnode) | |
6162 | lpfc_nlp_put(ndlp); | |
6163 | break; | |
7bb3b137 | 6164 | case ELS_CMD_RPS: |
858c9f6c JS |
6165 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6166 | "RCV RPS: did:x%x/ste:x%x flg:x%x", | |
6167 | did, vport->port_state, ndlp->nlp_flag); | |
6168 | ||
7bb3b137 | 6169 | phba->fc_stat.elsRcvRPS++; |
2e0fef85 | 6170 | lpfc_els_rcv_rps(vport, elsiocb, ndlp); |
87af33fe | 6171 | if (newnode) |
98c9ea5c | 6172 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
6173 | break; |
6174 | case ELS_CMD_RPL: | |
858c9f6c JS |
6175 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6176 | "RCV RPL: did:x%x/ste:x%x flg:x%x", | |
6177 | did, vport->port_state, ndlp->nlp_flag); | |
6178 | ||
7bb3b137 | 6179 | phba->fc_stat.elsRcvRPL++; |
2e0fef85 | 6180 | lpfc_els_rcv_rpl(vport, elsiocb, ndlp); |
87af33fe | 6181 | if (newnode) |
98c9ea5c | 6182 | lpfc_nlp_put(ndlp); |
7bb3b137 | 6183 | break; |
dea3101e | 6184 | case ELS_CMD_RNID: |
858c9f6c JS |
6185 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6186 | "RCV RNID: did:x%x/ste:x%x flg:x%x", | |
6187 | did, vport->port_state, ndlp->nlp_flag); | |
6188 | ||
dea3101e | 6189 | phba->fc_stat.elsRcvRNID++; |
2e0fef85 | 6190 | lpfc_els_rcv_rnid(vport, elsiocb, ndlp); |
87af33fe | 6191 | if (newnode) |
98c9ea5c | 6192 | lpfc_nlp_put(ndlp); |
dea3101e | 6193 | break; |
12265f68 JS |
6194 | case ELS_CMD_RTV: |
6195 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6196 | "RCV RTV: did:x%x/ste:x%x flg:x%x", | |
6197 | did, vport->port_state, ndlp->nlp_flag); | |
6198 | phba->fc_stat.elsRcvRTV++; | |
6199 | lpfc_els_rcv_rtv(vport, elsiocb, ndlp); | |
6200 | if (newnode) | |
6201 | lpfc_nlp_put(ndlp); | |
6202 | break; | |
5ffc266e JS |
6203 | case ELS_CMD_RRQ: |
6204 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6205 | "RCV RRQ: did:x%x/ste:x%x flg:x%x", | |
6206 | did, vport->port_state, ndlp->nlp_flag); | |
6207 | ||
6208 | phba->fc_stat.elsRcvRRQ++; | |
6209 | lpfc_els_rcv_rrq(vport, elsiocb, ndlp); | |
6210 | if (newnode) | |
6211 | lpfc_nlp_put(ndlp); | |
6212 | break; | |
12265f68 JS |
6213 | case ELS_CMD_ECHO: |
6214 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6215 | "RCV ECHO: did:x%x/ste:x%x flg:x%x", | |
6216 | did, vport->port_state, ndlp->nlp_flag); | |
6217 | ||
6218 | phba->fc_stat.elsRcvECHO++; | |
6219 | lpfc_els_rcv_echo(vport, elsiocb, ndlp); | |
6220 | if (newnode) | |
6221 | lpfc_nlp_put(ndlp); | |
6222 | break; | |
dea3101e | 6223 | default: |
858c9f6c JS |
6224 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6225 | "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x", | |
6226 | cmd, did, vport->port_state); | |
6227 | ||
dea3101e | 6228 | /* Unsupported ELS command, reject */ |
858c9f6c | 6229 | rjt_err = LSRJT_INVALID_CMD; |
dea3101e | 6230 | |
6231 | /* Unknown ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
6232 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6233 | "0115 Unknown ELS command x%x " | |
6234 | "received from NPORT x%x\n", cmd, did); | |
87af33fe | 6235 | if (newnode) |
98c9ea5c | 6236 | lpfc_nlp_put(ndlp); |
dea3101e | 6237 | break; |
6238 | } | |
6239 | ||
6240 | /* check if need to LS_RJT received ELS cmd */ | |
6241 | if (rjt_err) { | |
92d7f7b0 | 6242 | memset(&stat, 0, sizeof(stat)); |
858c9f6c | 6243 | stat.un.b.lsRjtRsnCode = rjt_err; |
1f679caf | 6244 | stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; |
858c9f6c JS |
6245 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp, |
6246 | NULL); | |
dea3101e | 6247 | } |
6248 | ||
d7c255b2 JS |
6249 | lpfc_nlp_put(elsiocb->context1); |
6250 | elsiocb->context1 = NULL; | |
ed957684 JS |
6251 | return; |
6252 | ||
6253 | dropit: | |
98c9ea5c | 6254 | if (vport && !(vport->load_flag & FC_UNLOADING)) |
6fb120a7 JS |
6255 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6256 | "0111 Dropping received ELS cmd " | |
ed957684 | 6257 | "Data: x%x x%x x%x\n", |
6fb120a7 | 6258 | icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout); |
ed957684 JS |
6259 | phba->fc_stat.elsRcvDrop++; |
6260 | } | |
6261 | ||
e59058c4 | 6262 | /** |
3621a710 | 6263 | * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier |
e59058c4 JS |
6264 | * @phba: pointer to lpfc hba data structure. |
6265 | * @vpi: host virtual N_Port identifier. | |
6266 | * | |
6267 | * This routine finds a vport on a HBA (referred by @phba) through a | |
6268 | * @vpi. The function walks the HBA's vport list and returns the address | |
6269 | * of the vport with the matching @vpi. | |
6270 | * | |
6271 | * Return code | |
6272 | * NULL - No vport with the matching @vpi found | |
6273 | * Otherwise - Address to the vport with the matching @vpi. | |
6274 | **/ | |
6669f9bb | 6275 | struct lpfc_vport * |
92d7f7b0 JS |
6276 | lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) |
6277 | { | |
6278 | struct lpfc_vport *vport; | |
549e55cd | 6279 | unsigned long flags; |
92d7f7b0 | 6280 | |
549e55cd | 6281 | spin_lock_irqsave(&phba->hbalock, flags); |
92d7f7b0 | 6282 | list_for_each_entry(vport, &phba->port_list, listentry) { |
549e55cd JS |
6283 | if (vport->vpi == vpi) { |
6284 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
92d7f7b0 | 6285 | return vport; |
549e55cd | 6286 | } |
92d7f7b0 | 6287 | } |
549e55cd | 6288 | spin_unlock_irqrestore(&phba->hbalock, flags); |
92d7f7b0 JS |
6289 | return NULL; |
6290 | } | |
ed957684 | 6291 | |
e59058c4 | 6292 | /** |
3621a710 | 6293 | * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring |
e59058c4 JS |
6294 | * @phba: pointer to lpfc hba data structure. |
6295 | * @pring: pointer to a SLI ring. | |
6296 | * @elsiocb: pointer to lpfc els iocb data structure. | |
6297 | * | |
6298 | * This routine is used to process an unsolicited event received from a SLI | |
6299 | * (Service Level Interface) ring. The actual processing of the data buffer | |
6300 | * associated with the unsolicited event is done by invoking the routine | |
6301 | * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the | |
6302 | * SLI ring on which the unsolicited event was received. | |
6303 | **/ | |
ed957684 JS |
6304 | void |
6305 | lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
6306 | struct lpfc_iocbq *elsiocb) | |
6307 | { | |
6308 | struct lpfc_vport *vport = phba->pport; | |
ed957684 | 6309 | IOCB_t *icmd = &elsiocb->iocb; |
ed957684 | 6310 | dma_addr_t paddr; |
92d7f7b0 JS |
6311 | struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2; |
6312 | struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3; | |
6313 | ||
d7c255b2 | 6314 | elsiocb->context1 = NULL; |
92d7f7b0 JS |
6315 | elsiocb->context2 = NULL; |
6316 | elsiocb->context3 = NULL; | |
ed957684 | 6317 | |
92d7f7b0 JS |
6318 | if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) { |
6319 | lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); | |
6320 | } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT && | |
6321 | (icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING) { | |
ed957684 JS |
6322 | phba->fc_stat.NoRcvBuf++; |
6323 | /* Not enough posted buffers; Try posting more buffers */ | |
92d7f7b0 | 6324 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) |
495a714c | 6325 | lpfc_post_buffer(phba, pring, 0); |
ed957684 JS |
6326 | return; |
6327 | } | |
6328 | ||
92d7f7b0 JS |
6329 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
6330 | (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX || | |
6331 | icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
6332 | if (icmd->unsli3.rcvsli3.vpi == 0xffff) | |
6333 | vport = phba->pport; | |
6fb120a7 JS |
6334 | else |
6335 | vport = lpfc_find_vport_by_vpid(phba, | |
6336 | icmd->unsli3.rcvsli3.vpi - phba->vpi_base); | |
92d7f7b0 | 6337 | } |
7f5f3d0d JS |
6338 | /* If there are no BDEs associated |
6339 | * with this IOCB, there is nothing to do. | |
6340 | */ | |
ed957684 JS |
6341 | if (icmd->ulpBdeCount == 0) |
6342 | return; | |
6343 | ||
7f5f3d0d JS |
6344 | /* type of ELS cmd is first 32bit word |
6345 | * in packet | |
6346 | */ | |
ed957684 | 6347 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
92d7f7b0 | 6348 | elsiocb->context2 = bdeBuf1; |
ed957684 JS |
6349 | } else { |
6350 | paddr = getPaddr(icmd->un.cont64[0].addrHigh, | |
6351 | icmd->un.cont64[0].addrLow); | |
92d7f7b0 JS |
6352 | elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring, |
6353 | paddr); | |
ed957684 JS |
6354 | } |
6355 | ||
92d7f7b0 JS |
6356 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); |
6357 | /* | |
6358 | * The different unsolicited event handlers would tell us | |
6359 | * if they are done with "mp" by setting context2 to NULL. | |
6360 | */ | |
dea3101e | 6361 | if (elsiocb->context2) { |
92d7f7b0 JS |
6362 | lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2); |
6363 | elsiocb->context2 = NULL; | |
dea3101e | 6364 | } |
ed957684 JS |
6365 | |
6366 | /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */ | |
92d7f7b0 | 6367 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) && |
ed957684 | 6368 | icmd->ulpBdeCount == 2) { |
92d7f7b0 JS |
6369 | elsiocb->context2 = bdeBuf2; |
6370 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); | |
ed957684 JS |
6371 | /* free mp if we are done with it */ |
6372 | if (elsiocb->context2) { | |
92d7f7b0 JS |
6373 | lpfc_in_buf_free(phba, elsiocb->context2); |
6374 | elsiocb->context2 = NULL; | |
6375 | } | |
6376 | } | |
6377 | } | |
6378 | ||
e59058c4 | 6379 | /** |
3621a710 | 6380 | * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr |
e59058c4 JS |
6381 | * @phba: pointer to lpfc hba data structure. |
6382 | * @vport: pointer to a virtual N_Port data structure. | |
6383 | * | |
6384 | * This routine issues a Port Login (PLOGI) to the Name Server with | |
6385 | * State Change Request (SCR) for a @vport. This routine will create an | |
6386 | * ndlp for the Name Server associated to the @vport if such node does | |
6387 | * not already exist. The PLOGI to Name Server is issued by invoking the | |
6388 | * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface | |
6389 | * (FDMI) is configured to the @vport, a FDMI node will be created and | |
6390 | * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine. | |
6391 | **/ | |
92d7f7b0 JS |
6392 | void |
6393 | lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) | |
6394 | { | |
6395 | struct lpfc_nodelist *ndlp, *ndlp_fdmi; | |
6396 | ||
6397 | ndlp = lpfc_findnode_did(vport, NameServer_DID); | |
6398 | if (!ndlp) { | |
6399 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
6400 | if (!ndlp) { | |
6401 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
6402 | lpfc_disc_start(vport); | |
6403 | return; | |
6404 | } | |
6405 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
6406 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6407 | "0251 NameServer login: no memory\n"); | |
92d7f7b0 JS |
6408 | return; |
6409 | } | |
6410 | lpfc_nlp_init(vport, ndlp, NameServer_DID); | |
e47c9093 JS |
6411 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
6412 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
6413 | if (!ndlp) { | |
6414 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
6415 | lpfc_disc_start(vport); | |
6416 | return; | |
6417 | } | |
6418 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6419 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6420 | "0348 NameServer login: node freed\n"); | |
6421 | return; | |
6422 | } | |
92d7f7b0 | 6423 | } |
58da1ffb | 6424 | ndlp->nlp_type |= NLP_FABRIC; |
92d7f7b0 JS |
6425 | |
6426 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); | |
6427 | ||
6428 | if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) { | |
6429 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
6430 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6431 | "0252 Cannot issue NameServer login\n"); | |
92d7f7b0 JS |
6432 | return; |
6433 | } | |
6434 | ||
3de2a653 | 6435 | if (vport->cfg_fdmi_on) { |
92d7f7b0 JS |
6436 | ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool, |
6437 | GFP_KERNEL); | |
6438 | if (ndlp_fdmi) { | |
6439 | lpfc_nlp_init(vport, ndlp_fdmi, FDMI_DID); | |
6440 | ndlp_fdmi->nlp_type |= NLP_FABRIC; | |
58da1ffb JS |
6441 | lpfc_nlp_set_state(vport, ndlp_fdmi, |
6442 | NLP_STE_PLOGI_ISSUE); | |
92d7f7b0 JS |
6443 | lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID, |
6444 | 0); | |
6445 | } | |
6446 | } | |
6447 | return; | |
6448 | } | |
6449 | ||
e59058c4 | 6450 | /** |
3621a710 | 6451 | * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport |
e59058c4 JS |
6452 | * @phba: pointer to lpfc hba data structure. |
6453 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
6454 | * | |
6455 | * This routine is the completion callback function to register new vport | |
6456 | * mailbox command. If the new vport mailbox command completes successfully, | |
6457 | * the fabric registration login shall be performed on physical port (the | |
6458 | * new vport created is actually a physical port, with VPI 0) or the port | |
6459 | * login to Name Server for State Change Request (SCR) will be performed | |
6460 | * on virtual port (real virtual port, with VPI greater than 0). | |
6461 | **/ | |
92d7f7b0 JS |
6462 | static void |
6463 | lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
6464 | { | |
6465 | struct lpfc_vport *vport = pmb->vport; | |
6466 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6467 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
04c68496 | 6468 | MAILBOX_t *mb = &pmb->u.mb; |
695a814e | 6469 | int rc; |
92d7f7b0 | 6470 | |
09372820 | 6471 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 6472 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; |
09372820 | 6473 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 JS |
6474 | |
6475 | if (mb->mbxStatus) { | |
e8b62011 | 6476 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
38b92ef8 JS |
6477 | "0915 Register VPI failed : Status: x%x" |
6478 | " upd bit: x%x \n", mb->mbxStatus, | |
6479 | mb->un.varRegVpi.upd); | |
6480 | if (phba->sli_rev == LPFC_SLI_REV4 && | |
6481 | mb->un.varRegVpi.upd) | |
6482 | goto mbox_err_exit ; | |
92d7f7b0 JS |
6483 | |
6484 | switch (mb->mbxStatus) { | |
6485 | case 0x11: /* unsupported feature */ | |
6486 | case 0x9603: /* max_vpi exceeded */ | |
7f5f3d0d | 6487 | case 0x9602: /* Link event since CLEAR_LA */ |
92d7f7b0 JS |
6488 | /* giving up on vport registration */ |
6489 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6490 | spin_lock_irq(shost->host_lock); | |
6491 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
6492 | spin_unlock_irq(shost->host_lock); | |
6493 | lpfc_can_disctmo(vport); | |
6494 | break; | |
695a814e JS |
6495 | /* If reg_vpi fail with invalid VPI status, re-init VPI */ |
6496 | case 0x20: | |
6497 | spin_lock_irq(shost->host_lock); | |
6498 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
6499 | spin_unlock_irq(shost->host_lock); | |
6500 | lpfc_init_vpi(phba, pmb, vport->vpi); | |
6501 | pmb->vport = vport; | |
6502 | pmb->mbox_cmpl = lpfc_init_vpi_cmpl; | |
6503 | rc = lpfc_sli_issue_mbox(phba, pmb, | |
6504 | MBX_NOWAIT); | |
6505 | if (rc == MBX_NOT_FINISHED) { | |
6506 | lpfc_printf_vlog(vport, | |
6507 | KERN_ERR, LOG_MBOX, | |
6508 | "2732 Failed to issue INIT_VPI" | |
6509 | " mailbox command\n"); | |
6510 | } else { | |
6511 | lpfc_nlp_put(ndlp); | |
6512 | return; | |
6513 | } | |
6514 | ||
92d7f7b0 JS |
6515 | default: |
6516 | /* Try to recover from this error */ | |
6517 | lpfc_mbx_unreg_vpi(vport); | |
09372820 | 6518 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 6519 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
09372820 | 6520 | spin_unlock_irq(shost->host_lock); |
4b40c59e JS |
6521 | if (vport->port_type == LPFC_PHYSICAL_PORT |
6522 | && !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) | |
7f5f3d0d JS |
6523 | lpfc_initial_flogi(vport); |
6524 | else | |
6525 | lpfc_initial_fdisc(vport); | |
92d7f7b0 JS |
6526 | break; |
6527 | } | |
92d7f7b0 | 6528 | } else { |
695a814e | 6529 | spin_lock_irq(shost->host_lock); |
1987807d | 6530 | vport->vpi_state |= LPFC_VPI_REGISTERED; |
695a814e JS |
6531 | spin_unlock_irq(shost->host_lock); |
6532 | if (vport == phba->pport) { | |
6fb120a7 JS |
6533 | if (phba->sli_rev < LPFC_SLI_REV4) |
6534 | lpfc_issue_fabric_reglogin(vport); | |
695a814e | 6535 | else { |
fc2b989b JS |
6536 | /* |
6537 | * If the physical port is instantiated using | |
6538 | * FDISC, do not start vport discovery. | |
6539 | */ | |
6540 | if (vport->port_state != LPFC_FDISC) | |
6541 | lpfc_start_fdiscs(phba); | |
695a814e JS |
6542 | lpfc_do_scr_ns_plogi(phba, vport); |
6543 | } | |
6544 | } else | |
92d7f7b0 JS |
6545 | lpfc_do_scr_ns_plogi(phba, vport); |
6546 | } | |
38b92ef8 | 6547 | mbox_err_exit: |
fa4066b6 JS |
6548 | /* Now, we decrement the ndlp reference count held for this |
6549 | * callback function | |
6550 | */ | |
6551 | lpfc_nlp_put(ndlp); | |
6552 | ||
92d7f7b0 JS |
6553 | mempool_free(pmb, phba->mbox_mem_pool); |
6554 | return; | |
6555 | } | |
6556 | ||
e59058c4 | 6557 | /** |
3621a710 | 6558 | * lpfc_register_new_vport - Register a new vport with a HBA |
e59058c4 JS |
6559 | * @phba: pointer to lpfc hba data structure. |
6560 | * @vport: pointer to a host virtual N_Port data structure. | |
6561 | * @ndlp: pointer to a node-list data structure. | |
6562 | * | |
6563 | * This routine registers the @vport as a new virtual port with a HBA. | |
6564 | * It is done through a registering vpi mailbox command. | |
6565 | **/ | |
695a814e | 6566 | void |
92d7f7b0 JS |
6567 | lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, |
6568 | struct lpfc_nodelist *ndlp) | |
6569 | { | |
09372820 | 6570 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
92d7f7b0 JS |
6571 | LPFC_MBOXQ_t *mbox; |
6572 | ||
6573 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
6574 | if (mbox) { | |
6fb120a7 | 6575 | lpfc_reg_vpi(vport, mbox); |
92d7f7b0 JS |
6576 | mbox->vport = vport; |
6577 | mbox->context2 = lpfc_nlp_get(ndlp); | |
6578 | mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; | |
0b727fea | 6579 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
92d7f7b0 | 6580 | == MBX_NOT_FINISHED) { |
fa4066b6 JS |
6581 | /* mailbox command not success, decrement ndlp |
6582 | * reference count for this command | |
6583 | */ | |
6584 | lpfc_nlp_put(ndlp); | |
92d7f7b0 | 6585 | mempool_free(mbox, phba->mbox_mem_pool); |
92d7f7b0 | 6586 | |
e8b62011 JS |
6587 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
6588 | "0253 Register VPI: Can't send mbox\n"); | |
fa4066b6 | 6589 | goto mbox_err_exit; |
92d7f7b0 JS |
6590 | } |
6591 | } else { | |
e8b62011 JS |
6592 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
6593 | "0254 Register VPI: no memory\n"); | |
fa4066b6 | 6594 | goto mbox_err_exit; |
92d7f7b0 | 6595 | } |
fa4066b6 JS |
6596 | return; |
6597 | ||
6598 | mbox_err_exit: | |
6599 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6600 | spin_lock_irq(shost->host_lock); | |
6601 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; | |
6602 | spin_unlock_irq(shost->host_lock); | |
6603 | return; | |
92d7f7b0 JS |
6604 | } |
6605 | ||
695a814e | 6606 | /** |
0c9ab6f5 | 6607 | * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer |
695a814e JS |
6608 | * @phba: pointer to lpfc hba data structure. |
6609 | * | |
0c9ab6f5 | 6610 | * This routine cancels the retry delay timers to all the vports. |
695a814e JS |
6611 | **/ |
6612 | void | |
0c9ab6f5 | 6613 | lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba) |
695a814e JS |
6614 | { |
6615 | struct lpfc_vport **vports; | |
6616 | struct lpfc_nodelist *ndlp; | |
695a814e | 6617 | uint32_t link_state; |
0c9ab6f5 | 6618 | int i; |
695a814e JS |
6619 | |
6620 | /* Treat this failure as linkdown for all vports */ | |
6621 | link_state = phba->link_state; | |
6622 | lpfc_linkdown(phba); | |
6623 | phba->link_state = link_state; | |
6624 | ||
6625 | vports = lpfc_create_vport_work_array(phba); | |
6626 | ||
6627 | if (vports) { | |
6628 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
6629 | ndlp = lpfc_findnode_did(vports[i], Fabric_DID); | |
6630 | if (ndlp) | |
6631 | lpfc_cancel_retry_delay_tmo(vports[i], ndlp); | |
6632 | lpfc_els_flush_cmd(vports[i]); | |
6633 | } | |
6634 | lpfc_destroy_vport_work_array(phba, vports); | |
6635 | } | |
0c9ab6f5 JS |
6636 | } |
6637 | ||
6638 | /** | |
6639 | * lpfc_retry_pport_discovery - Start timer to retry FLOGI. | |
6640 | * @phba: pointer to lpfc hba data structure. | |
6641 | * | |
6642 | * This routine abort all pending discovery commands and | |
6643 | * start a timer to retry FLOGI for the physical port | |
6644 | * discovery. | |
6645 | **/ | |
6646 | void | |
6647 | lpfc_retry_pport_discovery(struct lpfc_hba *phba) | |
6648 | { | |
6649 | struct lpfc_nodelist *ndlp; | |
6650 | struct Scsi_Host *shost; | |
6651 | ||
6652 | /* Cancel the all vports retry delay retry timers */ | |
6653 | lpfc_cancel_all_vport_retry_delay_timer(phba); | |
695a814e JS |
6654 | |
6655 | /* If fabric require FLOGI, then re-instantiate physical login */ | |
6656 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); | |
6657 | if (!ndlp) | |
6658 | return; | |
6659 | ||
695a814e JS |
6660 | shost = lpfc_shost_from_vport(phba->pport); |
6661 | mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); | |
6662 | spin_lock_irq(shost->host_lock); | |
6663 | ndlp->nlp_flag |= NLP_DELAY_TMO; | |
6664 | spin_unlock_irq(shost->host_lock); | |
6665 | ndlp->nlp_last_elscmd = ELS_CMD_FLOGI; | |
6666 | phba->pport->port_state = LPFC_FLOGI; | |
6667 | return; | |
6668 | } | |
6669 | ||
6670 | /** | |
6671 | * lpfc_fabric_login_reqd - Check if FLOGI required. | |
6672 | * @phba: pointer to lpfc hba data structure. | |
6673 | * @cmdiocb: pointer to FDISC command iocb. | |
6674 | * @rspiocb: pointer to FDISC response iocb. | |
6675 | * | |
6676 | * This routine checks if a FLOGI is reguired for FDISC | |
6677 | * to succeed. | |
6678 | **/ | |
6679 | static int | |
6680 | lpfc_fabric_login_reqd(struct lpfc_hba *phba, | |
6681 | struct lpfc_iocbq *cmdiocb, | |
6682 | struct lpfc_iocbq *rspiocb) | |
6683 | { | |
6684 | ||
6685 | if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) || | |
6686 | (rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED)) | |
6687 | return 0; | |
6688 | else | |
6689 | return 1; | |
6690 | } | |
6691 | ||
e59058c4 | 6692 | /** |
3621a710 | 6693 | * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command |
e59058c4 JS |
6694 | * @phba: pointer to lpfc hba data structure. |
6695 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
6696 | * @rspiocb: pointer to lpfc response iocb data structure. | |
6697 | * | |
6698 | * This routine is the completion callback function to a Fabric Discover | |
6699 | * (FDISC) ELS command. Since all the FDISC ELS commands are issued | |
6700 | * single threaded, each FDISC completion callback function will reset | |
6701 | * the discovery timer for all vports such that the timers will not get | |
6702 | * unnecessary timeout. The function checks the FDISC IOCB status. If error | |
6703 | * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the | |
6704 | * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID | |
6705 | * assigned to the vport has been changed with the completion of the FDISC | |
6706 | * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index) | |
6707 | * are unregistered from the HBA, and then the lpfc_register_new_vport() | |
6708 | * routine is invoked to register new vport with the HBA. Otherwise, the | |
6709 | * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name | |
6710 | * Server for State Change Request (SCR). | |
6711 | **/ | |
92d7f7b0 JS |
6712 | static void |
6713 | lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
6714 | struct lpfc_iocbq *rspiocb) | |
6715 | { | |
6716 | struct lpfc_vport *vport = cmdiocb->vport; | |
6717 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6718 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
6719 | struct lpfc_nodelist *np; | |
6720 | struct lpfc_nodelist *next_np; | |
6721 | IOCB_t *irsp = &rspiocb->iocb; | |
6722 | struct lpfc_iocbq *piocb; | |
6723 | ||
e8b62011 JS |
6724 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
6725 | "0123 FDISC completes. x%x/x%x prevDID: x%x\n", | |
6726 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
6727 | vport->fc_prevDID); | |
92d7f7b0 JS |
6728 | /* Since all FDISCs are being single threaded, we |
6729 | * must reset the discovery timer for ALL vports | |
6730 | * waiting to send FDISC when one completes. | |
6731 | */ | |
6732 | list_for_each_entry(piocb, &phba->fabric_iocb_list, list) { | |
6733 | lpfc_set_disctmo(piocb->vport); | |
6734 | } | |
6735 | ||
858c9f6c JS |
6736 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
6737 | "FDISC cmpl: status:x%x/x%x prevdid:x%x", | |
6738 | irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID); | |
6739 | ||
92d7f7b0 | 6740 | if (irsp->ulpStatus) { |
695a814e JS |
6741 | |
6742 | if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) { | |
6743 | lpfc_retry_pport_discovery(phba); | |
6744 | goto out; | |
6745 | } | |
6746 | ||
92d7f7b0 JS |
6747 | /* Check for retry */ |
6748 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) | |
6749 | goto out; | |
92d7f7b0 | 6750 | /* FDISC failed */ |
e8b62011 | 6751 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 6752 | "0126 FDISC failed. (%d/%d)\n", |
e8b62011 | 6753 | irsp->ulpStatus, irsp->un.ulpWord[4]); |
d7c255b2 JS |
6754 | goto fdisc_failed; |
6755 | } | |
d7c255b2 | 6756 | spin_lock_irq(shost->host_lock); |
695a814e | 6757 | vport->fc_flag &= ~FC_VPORT_CVL_RCVD; |
4b40c59e | 6758 | vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; |
d7c255b2 JS |
6759 | vport->fc_flag |= FC_FABRIC; |
6760 | if (vport->phba->fc_topology == TOPOLOGY_LOOP) | |
6761 | vport->fc_flag |= FC_PUBLIC_LOOP; | |
6762 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 | 6763 | |
d7c255b2 JS |
6764 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
6765 | lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); | |
6766 | if ((vport->fc_prevDID != vport->fc_myDID) && | |
6767 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
6768 | /* If our NportID changed, we need to ensure all | |
6769 | * remaining NPORTs get unreg_login'ed so we can | |
6770 | * issue unreg_vpi. | |
6771 | */ | |
6772 | list_for_each_entry_safe(np, next_np, | |
6773 | &vport->fc_nodes, nlp_listp) { | |
6774 | if (!NLP_CHK_NODE_ACT(ndlp) || | |
6775 | (np->nlp_state != NLP_STE_NPR_NODE) || | |
6776 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
6777 | continue; | |
09372820 | 6778 | spin_lock_irq(shost->host_lock); |
d7c255b2 | 6779 | np->nlp_flag &= ~NLP_NPR_ADISC; |
09372820 | 6780 | spin_unlock_irq(shost->host_lock); |
d7c255b2 | 6781 | lpfc_unreg_rpi(vport, np); |
92d7f7b0 | 6782 | } |
78730cfe | 6783 | lpfc_cleanup_pending_mbox(vport); |
d7c255b2 JS |
6784 | lpfc_mbx_unreg_vpi(vport); |
6785 | spin_lock_irq(shost->host_lock); | |
6786 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
0f65ff68 JS |
6787 | if (phba->sli_rev == LPFC_SLI_REV4) |
6788 | vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; | |
4b40c59e JS |
6789 | else |
6790 | vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG; | |
d7c255b2 | 6791 | spin_unlock_irq(shost->host_lock); |
38b92ef8 JS |
6792 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
6793 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
6794 | /* | |
6795 | * Driver needs to re-reg VPI in order for f/w | |
6796 | * to update the MAC address. | |
6797 | */ | |
6798 | lpfc_register_new_vport(phba, vport, ndlp); | |
5ac6b303 | 6799 | goto out; |
92d7f7b0 JS |
6800 | } |
6801 | ||
ecfd03c6 JS |
6802 | if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI) |
6803 | lpfc_issue_init_vpi(vport); | |
6804 | else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) | |
d7c255b2 JS |
6805 | lpfc_register_new_vport(phba, vport, ndlp); |
6806 | else | |
6807 | lpfc_do_scr_ns_plogi(phba, vport); | |
6808 | goto out; | |
6809 | fdisc_failed: | |
6810 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6811 | /* Cancel discovery timer */ | |
6812 | lpfc_can_disctmo(vport); | |
6813 | lpfc_nlp_put(ndlp); | |
92d7f7b0 JS |
6814 | out: |
6815 | lpfc_els_free_iocb(phba, cmdiocb); | |
6816 | } | |
6817 | ||
e59058c4 | 6818 | /** |
3621a710 | 6819 | * lpfc_issue_els_fdisc - Issue a fdisc iocb command |
e59058c4 JS |
6820 | * @vport: pointer to a virtual N_Port data structure. |
6821 | * @ndlp: pointer to a node-list data structure. | |
6822 | * @retry: number of retries to the command IOCB. | |
6823 | * | |
6824 | * This routine prepares and issues a Fabric Discover (FDISC) IOCB to | |
6825 | * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb() | |
6826 | * routine to issue the IOCB, which makes sure only one outstanding fabric | |
6827 | * IOCB will be sent off HBA at any given time. | |
6828 | * | |
6829 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
6830 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
6831 | * will be stored into the context1 field of the IOCB for the completion | |
6832 | * callback function to the FDISC ELS command. | |
6833 | * | |
6834 | * Return code | |
6835 | * 0 - Successfully issued fdisc iocb command | |
6836 | * 1 - Failed to issue fdisc iocb command | |
6837 | **/ | |
a6ababd2 | 6838 | static int |
92d7f7b0 JS |
6839 | lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
6840 | uint8_t retry) | |
6841 | { | |
6842 | struct lpfc_hba *phba = vport->phba; | |
6843 | IOCB_t *icmd; | |
6844 | struct lpfc_iocbq *elsiocb; | |
6845 | struct serv_parm *sp; | |
6846 | uint8_t *pcmd; | |
6847 | uint16_t cmdsize; | |
6848 | int did = ndlp->nlp_DID; | |
6849 | int rc; | |
92d7f7b0 | 6850 | |
5ffc266e | 6851 | vport->port_state = LPFC_FDISC; |
92d7f7b0 JS |
6852 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
6853 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, | |
6854 | ELS_CMD_FDISC); | |
6855 | if (!elsiocb) { | |
92d7f7b0 | 6856 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
6857 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6858 | "0255 Issue FDISC: no IOCB\n"); | |
92d7f7b0 JS |
6859 | return 1; |
6860 | } | |
6861 | ||
6862 | icmd = &elsiocb->iocb; | |
6863 | icmd->un.elsreq64.myID = 0; | |
6864 | icmd->un.elsreq64.fl = 1; | |
6865 | ||
f1126688 JS |
6866 | if (phba->sli_rev == LPFC_SLI_REV4) { |
6867 | /* FDISC needs to be 1 for WQE VPI */ | |
6868 | elsiocb->iocb.ulpCt_h = (SLI4_CT_VPI >> 1) & 1; | |
6869 | elsiocb->iocb.ulpCt_l = SLI4_CT_VPI & 1 ; | |
6870 | /* Set the ulpContext to the vpi */ | |
6871 | elsiocb->iocb.ulpContext = vport->vpi + phba->vpi_base; | |
6872 | } else { | |
6873 | /* For FDISC, Let FDISC rsp set the NPortID for this VPI */ | |
6874 | icmd->ulpCt_h = 1; | |
6875 | icmd->ulpCt_l = 0; | |
6876 | } | |
92d7f7b0 JS |
6877 | |
6878 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
6879 | *((uint32_t *) (pcmd)) = ELS_CMD_FDISC; | |
6880 | pcmd += sizeof(uint32_t); /* CSP Word 1 */ | |
6881 | memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm)); | |
6882 | sp = (struct serv_parm *) pcmd; | |
6883 | /* Setup CSPs accordingly for Fabric */ | |
6884 | sp->cmn.e_d_tov = 0; | |
6885 | sp->cmn.w2.r_a_tov = 0; | |
6886 | sp->cls1.classValid = 0; | |
6887 | sp->cls2.seqDelivery = 1; | |
6888 | sp->cls3.seqDelivery = 1; | |
6889 | ||
6890 | pcmd += sizeof(uint32_t); /* CSP Word 2 */ | |
6891 | pcmd += sizeof(uint32_t); /* CSP Word 3 */ | |
6892 | pcmd += sizeof(uint32_t); /* CSP Word 4 */ | |
6893 | pcmd += sizeof(uint32_t); /* Port Name */ | |
6894 | memcpy(pcmd, &vport->fc_portname, 8); | |
6895 | pcmd += sizeof(uint32_t); /* Node Name */ | |
6896 | pcmd += sizeof(uint32_t); /* Node Name */ | |
6897 | memcpy(pcmd, &vport->fc_nodename, 8); | |
6898 | ||
6899 | lpfc_set_disctmo(vport); | |
6900 | ||
6901 | phba->fc_stat.elsXmitFDISC++; | |
6902 | elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc; | |
6903 | ||
858c9f6c JS |
6904 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
6905 | "Issue FDISC: did:x%x", | |
6906 | did, 0, 0); | |
6907 | ||
92d7f7b0 JS |
6908 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
6909 | if (rc == IOCB_ERROR) { | |
6910 | lpfc_els_free_iocb(phba, elsiocb); | |
92d7f7b0 | 6911 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
6912 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6913 | "0256 Issue FDISC: Cannot send IOCB\n"); | |
92d7f7b0 JS |
6914 | return 1; |
6915 | } | |
6916 | lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING); | |
92d7f7b0 JS |
6917 | return 0; |
6918 | } | |
6919 | ||
e59058c4 | 6920 | /** |
3621a710 | 6921 | * lpfc_cmpl_els_npiv_logo - Completion function with vport logo |
e59058c4 JS |
6922 | * @phba: pointer to lpfc hba data structure. |
6923 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
6924 | * @rspiocb: pointer to lpfc response iocb data structure. | |
6925 | * | |
6926 | * This routine is the completion callback function to the issuing of a LOGO | |
6927 | * ELS command off a vport. It frees the command IOCB and then decrement the | |
6928 | * reference count held on ndlp for this completion function, indicating that | |
6929 | * the reference to the ndlp is no long needed. Note that the | |
6930 | * lpfc_els_free_iocb() routine decrements the ndlp reference held for this | |
6931 | * callback function and an additional explicit ndlp reference decrementation | |
6932 | * will trigger the actual release of the ndlp. | |
6933 | **/ | |
92d7f7b0 JS |
6934 | static void |
6935 | lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
6936 | struct lpfc_iocbq *rspiocb) | |
6937 | { | |
6938 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c | 6939 | IOCB_t *irsp; |
e47c9093 JS |
6940 | struct lpfc_nodelist *ndlp; |
6941 | ndlp = (struct lpfc_nodelist *)cmdiocb->context1; | |
858c9f6c JS |
6942 | |
6943 | irsp = &rspiocb->iocb; | |
6944 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
6945 | "LOGO npiv cmpl: status:x%x/x%x did:x%x", | |
6946 | irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID); | |
92d7f7b0 JS |
6947 | |
6948 | lpfc_els_free_iocb(phba, cmdiocb); | |
6949 | vport->unreg_vpi_cmpl = VPORT_ERROR; | |
e47c9093 JS |
6950 | |
6951 | /* Trigger the release of the ndlp after logo */ | |
6952 | lpfc_nlp_put(ndlp); | |
92d7f7b0 JS |
6953 | } |
6954 | ||
e59058c4 | 6955 | /** |
3621a710 | 6956 | * lpfc_issue_els_npiv_logo - Issue a logo off a vport |
e59058c4 JS |
6957 | * @vport: pointer to a virtual N_Port data structure. |
6958 | * @ndlp: pointer to a node-list data structure. | |
6959 | * | |
6960 | * This routine issues a LOGO ELS command to an @ndlp off a @vport. | |
6961 | * | |
6962 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
6963 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
6964 | * will be stored into the context1 field of the IOCB for the completion | |
6965 | * callback function to the LOGO ELS command. | |
6966 | * | |
6967 | * Return codes | |
6968 | * 0 - Successfully issued logo off the @vport | |
6969 | * 1 - Failed to issue logo off the @vport | |
6970 | **/ | |
92d7f7b0 JS |
6971 | int |
6972 | lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) | |
6973 | { | |
6974 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6975 | struct lpfc_hba *phba = vport->phba; | |
92d7f7b0 JS |
6976 | IOCB_t *icmd; |
6977 | struct lpfc_iocbq *elsiocb; | |
6978 | uint8_t *pcmd; | |
6979 | uint16_t cmdsize; | |
6980 | ||
6981 | cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name); | |
6982 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID, | |
6983 | ELS_CMD_LOGO); | |
6984 | if (!elsiocb) | |
6985 | return 1; | |
6986 | ||
6987 | icmd = &elsiocb->iocb; | |
6988 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
6989 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
6990 | pcmd += sizeof(uint32_t); | |
6991 | ||
6992 | /* Fill in LOGO payload */ | |
6993 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); | |
6994 | pcmd += sizeof(uint32_t); | |
6995 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
6996 | ||
858c9f6c JS |
6997 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
6998 | "Issue LOGO npiv did:x%x flg:x%x", | |
6999 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
7000 | ||
92d7f7b0 JS |
7001 | elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo; |
7002 | spin_lock_irq(shost->host_lock); | |
7003 | ndlp->nlp_flag |= NLP_LOGO_SND; | |
7004 | spin_unlock_irq(shost->host_lock); | |
3772a991 JS |
7005 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
7006 | IOCB_ERROR) { | |
92d7f7b0 JS |
7007 | spin_lock_irq(shost->host_lock); |
7008 | ndlp->nlp_flag &= ~NLP_LOGO_SND; | |
7009 | spin_unlock_irq(shost->host_lock); | |
7010 | lpfc_els_free_iocb(phba, elsiocb); | |
7011 | return 1; | |
7012 | } | |
7013 | return 0; | |
7014 | } | |
7015 | ||
e59058c4 | 7016 | /** |
3621a710 | 7017 | * lpfc_fabric_block_timeout - Handler function to the fabric block timer |
e59058c4 JS |
7018 | * @ptr: holder for the timer function associated data. |
7019 | * | |
7020 | * This routine is invoked by the fabric iocb block timer after | |
7021 | * timeout. It posts the fabric iocb block timeout event by setting the | |
7022 | * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes | |
7023 | * lpfc_worker_wake_up() routine to wake up the worker thread. It is for | |
7024 | * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the | |
7025 | * posted event WORKER_FABRIC_BLOCK_TMO. | |
7026 | **/ | |
92d7f7b0 JS |
7027 | void |
7028 | lpfc_fabric_block_timeout(unsigned long ptr) | |
7029 | { | |
7030 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; | |
7031 | unsigned long iflags; | |
7032 | uint32_t tmo_posted; | |
5e9d9b82 | 7033 | |
92d7f7b0 JS |
7034 | spin_lock_irqsave(&phba->pport->work_port_lock, iflags); |
7035 | tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO; | |
7036 | if (!tmo_posted) | |
7037 | phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO; | |
7038 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); | |
7039 | ||
5e9d9b82 JS |
7040 | if (!tmo_posted) |
7041 | lpfc_worker_wake_up(phba); | |
7042 | return; | |
92d7f7b0 JS |
7043 | } |
7044 | ||
e59058c4 | 7045 | /** |
3621a710 | 7046 | * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list |
e59058c4 JS |
7047 | * @phba: pointer to lpfc hba data structure. |
7048 | * | |
7049 | * This routine issues one fabric iocb from the driver internal list to | |
7050 | * the HBA. It first checks whether it's ready to issue one fabric iocb to | |
7051 | * the HBA (whether there is no outstanding fabric iocb). If so, it shall | |
7052 | * remove one pending fabric iocb from the driver internal list and invokes | |
7053 | * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA. | |
7054 | **/ | |
92d7f7b0 JS |
7055 | static void |
7056 | lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) | |
7057 | { | |
7058 | struct lpfc_iocbq *iocb; | |
7059 | unsigned long iflags; | |
7060 | int ret; | |
92d7f7b0 JS |
7061 | IOCB_t *cmd; |
7062 | ||
7063 | repeat: | |
7064 | iocb = NULL; | |
7065 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7f5f3d0d | 7066 | /* Post any pending iocb to the SLI layer */ |
92d7f7b0 JS |
7067 | if (atomic_read(&phba->fabric_iocb_count) == 0) { |
7068 | list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb), | |
7069 | list); | |
7070 | if (iocb) | |
7f5f3d0d | 7071 | /* Increment fabric iocb count to hold the position */ |
92d7f7b0 JS |
7072 | atomic_inc(&phba->fabric_iocb_count); |
7073 | } | |
7074 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7075 | if (iocb) { | |
7076 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
7077 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
7078 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
7079 | ||
858c9f6c JS |
7080 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
7081 | "Fabric sched1: ste:x%x", | |
7082 | iocb->vport->port_state, 0, 0); | |
7083 | ||
3772a991 | 7084 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
7085 | |
7086 | if (ret == IOCB_ERROR) { | |
7087 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
7088 | iocb->fabric_iocb_cmpl = NULL; | |
7089 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7090 | cmd = &iocb->iocb; | |
7091 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
7092 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
7093 | iocb->iocb_cmpl(phba, iocb, iocb); | |
7094 | ||
7095 | atomic_dec(&phba->fabric_iocb_count); | |
7096 | goto repeat; | |
7097 | } | |
7098 | } | |
7099 | ||
7100 | return; | |
7101 | } | |
7102 | ||
e59058c4 | 7103 | /** |
3621a710 | 7104 | * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command |
e59058c4 JS |
7105 | * @phba: pointer to lpfc hba data structure. |
7106 | * | |
7107 | * This routine unblocks the issuing fabric iocb command. The function | |
7108 | * will clear the fabric iocb block bit and then invoke the routine | |
7109 | * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb | |
7110 | * from the driver internal fabric iocb list. | |
7111 | **/ | |
92d7f7b0 JS |
7112 | void |
7113 | lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) | |
7114 | { | |
7115 | clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7116 | ||
7117 | lpfc_resume_fabric_iocbs(phba); | |
7118 | return; | |
7119 | } | |
7120 | ||
e59058c4 | 7121 | /** |
3621a710 | 7122 | * lpfc_block_fabric_iocbs - Block issuing fabric iocb command |
e59058c4 JS |
7123 | * @phba: pointer to lpfc hba data structure. |
7124 | * | |
7125 | * This routine blocks the issuing fabric iocb for a specified amount of | |
7126 | * time (currently 100 ms). This is done by set the fabric iocb block bit | |
7127 | * and set up a timeout timer for 100ms. When the block bit is set, no more | |
7128 | * fabric iocb will be issued out of the HBA. | |
7129 | **/ | |
92d7f7b0 JS |
7130 | static void |
7131 | lpfc_block_fabric_iocbs(struct lpfc_hba *phba) | |
7132 | { | |
7133 | int blocked; | |
7134 | ||
7135 | blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7f5f3d0d | 7136 | /* Start a timer to unblock fabric iocbs after 100ms */ |
92d7f7b0 JS |
7137 | if (!blocked) |
7138 | mod_timer(&phba->fabric_block_timer, jiffies + HZ/10 ); | |
7139 | ||
7140 | return; | |
7141 | } | |
7142 | ||
e59058c4 | 7143 | /** |
3621a710 | 7144 | * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb |
e59058c4 JS |
7145 | * @phba: pointer to lpfc hba data structure. |
7146 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7147 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7148 | * | |
7149 | * This routine is the callback function that is put to the fabric iocb's | |
7150 | * callback function pointer (iocb->iocb_cmpl). The original iocb's callback | |
7151 | * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback | |
7152 | * function first restores and invokes the original iocb's callback function | |
7153 | * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next | |
7154 | * fabric bound iocb from the driver internal fabric iocb list onto the wire. | |
7155 | **/ | |
92d7f7b0 JS |
7156 | static void |
7157 | lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7158 | struct lpfc_iocbq *rspiocb) | |
7159 | { | |
7160 | struct ls_rjt stat; | |
7161 | ||
7162 | if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC) | |
7163 | BUG(); | |
7164 | ||
7165 | switch (rspiocb->iocb.ulpStatus) { | |
7166 | case IOSTAT_NPORT_RJT: | |
7167 | case IOSTAT_FABRIC_RJT: | |
7168 | if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
7169 | lpfc_block_fabric_iocbs(phba); | |
ed957684 | 7170 | } |
92d7f7b0 JS |
7171 | break; |
7172 | ||
7173 | case IOSTAT_NPORT_BSY: | |
7174 | case IOSTAT_FABRIC_BSY: | |
7175 | lpfc_block_fabric_iocbs(phba); | |
7176 | break; | |
7177 | ||
7178 | case IOSTAT_LS_RJT: | |
7179 | stat.un.lsRjtError = | |
7180 | be32_to_cpu(rspiocb->iocb.un.ulpWord[4]); | |
7181 | if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) || | |
7182 | (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY)) | |
7183 | lpfc_block_fabric_iocbs(phba); | |
7184 | break; | |
7185 | } | |
7186 | ||
7187 | if (atomic_read(&phba->fabric_iocb_count) == 0) | |
7188 | BUG(); | |
7189 | ||
7190 | cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl; | |
7191 | cmdiocb->fabric_iocb_cmpl = NULL; | |
7192 | cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7193 | cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb); | |
7194 | ||
7195 | atomic_dec(&phba->fabric_iocb_count); | |
7196 | if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) { | |
7f5f3d0d JS |
7197 | /* Post any pending iocbs to HBA */ |
7198 | lpfc_resume_fabric_iocbs(phba); | |
92d7f7b0 JS |
7199 | } |
7200 | } | |
7201 | ||
e59058c4 | 7202 | /** |
3621a710 | 7203 | * lpfc_issue_fabric_iocb - Issue a fabric iocb command |
e59058c4 JS |
7204 | * @phba: pointer to lpfc hba data structure. |
7205 | * @iocb: pointer to lpfc command iocb data structure. | |
7206 | * | |
7207 | * This routine is used as the top-level API for issuing a fabric iocb command | |
7208 | * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver | |
7209 | * function makes sure that only one fabric bound iocb will be outstanding at | |
7210 | * any given time. As such, this function will first check to see whether there | |
7211 | * is already an outstanding fabric iocb on the wire. If so, it will put the | |
7212 | * newly issued iocb onto the driver internal fabric iocb list, waiting to be | |
7213 | * issued later. Otherwise, it will issue the iocb on the wire and update the | |
7214 | * fabric iocb count it indicate that there is one fabric iocb on the wire. | |
7215 | * | |
7216 | * Note, this implementation has a potential sending out fabric IOCBs out of | |
7217 | * order. The problem is caused by the construction of the "ready" boolen does | |
7218 | * not include the condition that the internal fabric IOCB list is empty. As | |
7219 | * such, it is possible a fabric IOCB issued by this routine might be "jump" | |
7220 | * ahead of the fabric IOCBs in the internal list. | |
7221 | * | |
7222 | * Return code | |
7223 | * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully | |
7224 | * IOCB_ERROR - failed to issue fabric iocb | |
7225 | **/ | |
a6ababd2 | 7226 | static int |
92d7f7b0 JS |
7227 | lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) |
7228 | { | |
7229 | unsigned long iflags; | |
92d7f7b0 JS |
7230 | int ready; |
7231 | int ret; | |
7232 | ||
7233 | if (atomic_read(&phba->fabric_iocb_count) > 1) | |
7234 | BUG(); | |
7235 | ||
7236 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7237 | ready = atomic_read(&phba->fabric_iocb_count) == 0 && | |
7238 | !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7239 | ||
7f5f3d0d JS |
7240 | if (ready) |
7241 | /* Increment fabric iocb count to hold the position */ | |
7242 | atomic_inc(&phba->fabric_iocb_count); | |
92d7f7b0 JS |
7243 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
7244 | if (ready) { | |
7245 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
7246 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
7247 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
7248 | ||
858c9f6c JS |
7249 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
7250 | "Fabric sched2: ste:x%x", | |
7251 | iocb->vport->port_state, 0, 0); | |
7252 | ||
3772a991 | 7253 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
7254 | |
7255 | if (ret == IOCB_ERROR) { | |
7256 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
7257 | iocb->fabric_iocb_cmpl = NULL; | |
7258 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7259 | atomic_dec(&phba->fabric_iocb_count); | |
7260 | } | |
7261 | } else { | |
7262 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7263 | list_add_tail(&iocb->list, &phba->fabric_iocb_list); | |
7264 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7265 | ret = IOCB_SUCCESS; | |
7266 | } | |
7267 | return ret; | |
7268 | } | |
7269 | ||
e59058c4 | 7270 | /** |
3621a710 | 7271 | * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list |
e59058c4 JS |
7272 | * @vport: pointer to a virtual N_Port data structure. |
7273 | * | |
7274 | * This routine aborts all the IOCBs associated with a @vport from the | |
7275 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
7276 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
7277 | * list, removes each IOCB associated with the @vport off the list, set the | |
7278 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
7279 | * associated with the IOCB. | |
7280 | **/ | |
a6ababd2 | 7281 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport) |
92d7f7b0 JS |
7282 | { |
7283 | LIST_HEAD(completions); | |
7284 | struct lpfc_hba *phba = vport->phba; | |
7285 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
92d7f7b0 JS |
7286 | |
7287 | spin_lock_irq(&phba->hbalock); | |
7288 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
7289 | list) { | |
7290 | ||
7291 | if (piocb->vport != vport) | |
7292 | continue; | |
7293 | ||
7294 | list_move_tail(&piocb->list, &completions); | |
7295 | } | |
7296 | spin_unlock_irq(&phba->hbalock); | |
7297 | ||
a257bf90 JS |
7298 | /* Cancel all the IOCBs from the completions list */ |
7299 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7300 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
7301 | } |
7302 | ||
e59058c4 | 7303 | /** |
3621a710 | 7304 | * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list |
e59058c4 JS |
7305 | * @ndlp: pointer to a node-list data structure. |
7306 | * | |
7307 | * This routine aborts all the IOCBs associated with an @ndlp from the | |
7308 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
7309 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
7310 | * list, removes each IOCB associated with the @ndlp off the list, set the | |
7311 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
7312 | * associated with the IOCB. | |
7313 | **/ | |
92d7f7b0 JS |
7314 | void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) |
7315 | { | |
7316 | LIST_HEAD(completions); | |
a257bf90 | 7317 | struct lpfc_hba *phba = ndlp->phba; |
92d7f7b0 JS |
7318 | struct lpfc_iocbq *tmp_iocb, *piocb; |
7319 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
92d7f7b0 JS |
7320 | |
7321 | spin_lock_irq(&phba->hbalock); | |
7322 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
7323 | list) { | |
7324 | if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) { | |
7325 | ||
7326 | list_move_tail(&piocb->list, &completions); | |
ed957684 | 7327 | } |
dea3101e | 7328 | } |
92d7f7b0 JS |
7329 | spin_unlock_irq(&phba->hbalock); |
7330 | ||
a257bf90 JS |
7331 | /* Cancel all the IOCBs from the completions list */ |
7332 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7333 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
7334 | } |
7335 | ||
e59058c4 | 7336 | /** |
3621a710 | 7337 | * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list |
e59058c4 JS |
7338 | * @phba: pointer to lpfc hba data structure. |
7339 | * | |
7340 | * This routine aborts all the IOCBs currently on the driver internal | |
7341 | * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS | |
7342 | * IOCB ring. This function takes the entire IOCB list off the fabric IOCB | |
7343 | * list, removes IOCBs off the list, set the status feild to | |
7344 | * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with | |
7345 | * the IOCB. | |
7346 | **/ | |
92d7f7b0 JS |
7347 | void lpfc_fabric_abort_hba(struct lpfc_hba *phba) |
7348 | { | |
7349 | LIST_HEAD(completions); | |
92d7f7b0 JS |
7350 | |
7351 | spin_lock_irq(&phba->hbalock); | |
7352 | list_splice_init(&phba->fabric_iocb_list, &completions); | |
7353 | spin_unlock_irq(&phba->hbalock); | |
7354 | ||
a257bf90 JS |
7355 | /* Cancel all the IOCBs from the completions list */ |
7356 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7357 | IOERR_SLI_ABORTED); | |
dea3101e | 7358 | } |
6fb120a7 JS |
7359 | |
7360 | /** | |
7361 | * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort | |
7362 | * @phba: pointer to lpfc hba data structure. | |
7363 | * @axri: pointer to the els xri abort wcqe structure. | |
7364 | * | |
7365 | * This routine is invoked by the worker thread to process a SLI4 slow-path | |
7366 | * ELS aborted xri. | |
7367 | **/ | |
7368 | void | |
7369 | lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba, | |
7370 | struct sli4_wcqe_xri_aborted *axri) | |
7371 | { | |
7372 | uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); | |
7373 | struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; | |
7374 | unsigned long iflag = 0; | |
589a52d6 | 7375 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
6fb120a7 | 7376 | |
0f65ff68 JS |
7377 | spin_lock_irqsave(&phba->hbalock, iflag); |
7378 | spin_lock(&phba->sli4_hba.abts_sgl_list_lock); | |
6fb120a7 JS |
7379 | list_for_each_entry_safe(sglq_entry, sglq_next, |
7380 | &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { | |
7381 | if (sglq_entry->sli4_xritag == xri) { | |
7382 | list_del(&sglq_entry->list); | |
6fb120a7 JS |
7383 | list_add_tail(&sglq_entry->list, |
7384 | &phba->sli4_hba.lpfc_sgl_list); | |
0f65ff68 JS |
7385 | sglq_entry->state = SGL_FREED; |
7386 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); | |
6fb120a7 | 7387 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
589a52d6 JS |
7388 | |
7389 | /* Check if TXQ queue needs to be serviced */ | |
7390 | if (pring->txq_cnt) | |
7391 | lpfc_worker_wake_up(phba); | |
6fb120a7 JS |
7392 | return; |
7393 | } | |
7394 | } | |
0f65ff68 JS |
7395 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); |
7396 | sglq_entry = __lpfc_get_active_sglq(phba, xri); | |
7397 | if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) { | |
7398 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7399 | return; | |
7400 | } | |
7401 | sglq_entry->state = SGL_XRI_ABORTED; | |
7402 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7403 | return; | |
6fb120a7 | 7404 | } |