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dea3101e JB |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
e47c9093 | 4 | * Copyright (C) 2004-2008 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 JB |
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 JB |
22 | #include <linux/blkdev.h> |
23 | #include <linux/pci.h> | |
24 | #include <linux/interrupt.h> | |
25 | ||
91886523 | 26 | #include <scsi/scsi.h> |
dea3101e JB |
27 | #include <scsi/scsi_device.h> |
28 | #include <scsi/scsi_host.h> | |
29 | #include <scsi/scsi_transport_fc.h> | |
30 | ||
31 | #include "lpfc_hw.h" | |
32 | #include "lpfc_sli.h" | |
ea2151b4 | 33 | #include "lpfc_nl.h" |
dea3101e JB |
34 | #include "lpfc_disc.h" |
35 | #include "lpfc_scsi.h" | |
36 | #include "lpfc.h" | |
37 | #include "lpfc_logmsg.h" | |
38 | #include "lpfc_crtn.h" | |
92d7f7b0 | 39 | #include "lpfc_vport.h" |
858c9f6c | 40 | #include "lpfc_debugfs.h" |
dea3101e JB |
41 | |
42 | static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *, | |
43 | struct lpfc_iocbq *); | |
92d7f7b0 JS |
44 | static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *, |
45 | struct lpfc_iocbq *); | |
a6ababd2 AB |
46 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport); |
47 | static int lpfc_issue_els_fdisc(struct lpfc_vport *vport, | |
48 | struct lpfc_nodelist *ndlp, uint8_t retry); | |
49 | static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba, | |
50 | struct lpfc_iocbq *iocb); | |
51 | static void lpfc_register_new_vport(struct lpfc_hba *phba, | |
52 | struct lpfc_vport *vport, | |
53 | struct lpfc_nodelist *ndlp); | |
92d7f7b0 | 54 | |
dea3101e JB |
55 | static int lpfc_max_els_tries = 3; |
56 | ||
e59058c4 JS |
57 | /** |
58 | * lpfc_els_chk_latt: Check host link attention event for a vport. | |
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 JS |
86 | if (vport->port_state >= LPFC_VPORT_READY || |
87 | phba->link_state == LPFC_LINK_DOWN) | |
dea3101e JB |
88 | return 0; |
89 | ||
90 | /* Read the HBA Host Attention Register */ | |
dea3101e | 91 | ha_copy = readl(phba->HAregaddr); |
dea3101e JB |
92 | |
93 | if (!(ha_copy & HA_LATT)) | |
94 | return 0; | |
95 | ||
96 | /* Pending Link Event during Discovery */ | |
e8b62011 JS |
97 | lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, |
98 | "0237 Pending Link Event during " | |
99 | "Discovery: State x%x\n", | |
100 | phba->pport->port_state); | |
dea3101e JB |
101 | |
102 | /* CLEAR_LA should re-enable link attention events and | |
103 | * we should then imediately take a LATT event. The | |
104 | * LATT processing should call lpfc_linkdown() which | |
105 | * will cleanup any left over in-progress discovery | |
106 | * events. | |
107 | */ | |
2e0fef85 JS |
108 | spin_lock_irq(shost->host_lock); |
109 | vport->fc_flag |= FC_ABORT_DISCOVERY; | |
110 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 111 | |
92d7f7b0 | 112 | if (phba->link_state != LPFC_CLEAR_LA) |
ed957684 | 113 | lpfc_issue_clear_la(phba, vport); |
dea3101e | 114 | |
c9f8735b | 115 | return 1; |
dea3101e JB |
116 | } |
117 | ||
e59058c4 JS |
118 | /** |
119 | * lpfc_prep_els_iocb: Allocate and prepare a lpfc iocb data structure. | |
120 | * @vport: pointer to a host virtual N_Port data structure. | |
121 | * @expectRsp: flag indicating whether response is expected. | |
122 | * @cmdSize: size of the ELS command. | |
123 | * @retry: number of retries to the command IOCB when it fails. | |
124 | * @ndlp: pointer to a node-list data structure. | |
125 | * @did: destination identifier. | |
126 | * @elscmd: the ELS command code. | |
127 | * | |
128 | * This routine is used for allocating a lpfc-IOCB data structure from | |
129 | * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters | |
130 | * passed into the routine for discovery state machine to issue an Extended | |
131 | * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation | |
132 | * and preparation routine that is used by all the discovery state machine | |
133 | * routines and the ELS command-specific fields will be later set up by | |
134 | * the individual discovery machine routines after calling this routine | |
135 | * allocating and preparing a generic IOCB data structure. It fills in the | |
136 | * Buffer Descriptor Entries (BDEs), allocates buffers for both command | |
137 | * payload and response payload (if expected). The reference count on the | |
138 | * ndlp is incremented by 1 and the reference to the ndlp is put into | |
139 | * context1 of the IOCB data structure for this IOCB to hold the ndlp | |
140 | * reference for the command's callback function to access later. | |
141 | * | |
142 | * Return code | |
143 | * Pointer to the newly allocated/prepared els iocb data structure | |
144 | * NULL - when els iocb data structure allocation/preparation failed | |
145 | **/ | |
dea3101e | 146 | static struct lpfc_iocbq * |
2e0fef85 JS |
147 | lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp, |
148 | uint16_t cmdSize, uint8_t retry, | |
149 | struct lpfc_nodelist *ndlp, uint32_t did, | |
150 | uint32_t elscmd) | |
dea3101e | 151 | { |
2e0fef85 | 152 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 | 153 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
154 | struct lpfc_dmabuf *pcmd, *prsp, *pbuflist; |
155 | struct ulp_bde64 *bpl; | |
156 | IOCB_t *icmd; | |
157 | ||
dea3101e | 158 | |
2e0fef85 JS |
159 | if (!lpfc_is_link_up(phba)) |
160 | return NULL; | |
dea3101e | 161 | |
dea3101e | 162 | /* Allocate buffer for command iocb */ |
0bd4ca25 | 163 | elsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e JB |
164 | |
165 | if (elsiocb == NULL) | |
166 | return NULL; | |
e47c9093 | 167 | |
dea3101e JB |
168 | icmd = &elsiocb->iocb; |
169 | ||
170 | /* fill in BDEs for command */ | |
171 | /* Allocate buffer for command payload */ | |
98c9ea5c JS |
172 | pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
173 | if (pcmd) | |
174 | pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys); | |
fa4066b6 JS |
175 | if (!pcmd || !pcmd->virt) |
176 | goto els_iocb_free_pcmb_exit; | |
dea3101e JB |
177 | |
178 | INIT_LIST_HEAD(&pcmd->list); | |
179 | ||
180 | /* Allocate buffer for response payload */ | |
181 | if (expectRsp) { | |
92d7f7b0 | 182 | prsp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
dea3101e JB |
183 | if (prsp) |
184 | prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, | |
185 | &prsp->phys); | |
fa4066b6 JS |
186 | if (!prsp || !prsp->virt) |
187 | goto els_iocb_free_prsp_exit; | |
dea3101e | 188 | INIT_LIST_HEAD(&prsp->list); |
e47c9093 | 189 | } else |
dea3101e | 190 | prsp = NULL; |
dea3101e JB |
191 | |
192 | /* Allocate buffer for Buffer ptr list */ | |
92d7f7b0 | 193 | pbuflist = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
dea3101e | 194 | if (pbuflist) |
ed957684 JS |
195 | pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI, |
196 | &pbuflist->phys); | |
fa4066b6 JS |
197 | if (!pbuflist || !pbuflist->virt) |
198 | goto els_iocb_free_pbuf_exit; | |
dea3101e JB |
199 | |
200 | INIT_LIST_HEAD(&pbuflist->list); | |
201 | ||
202 | icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys); | |
203 | icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys); | |
34b02dcd | 204 | icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
2e0fef85 | 205 | icmd->un.elsreq64.remoteID = did; /* DID */ |
dea3101e | 206 | if (expectRsp) { |
92d7f7b0 | 207 | icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); |
dea3101e | 208 | icmd->ulpCommand = CMD_ELS_REQUEST64_CR; |
2680eeaa | 209 | icmd->ulpTimeout = phba->fc_ratov * 2; |
dea3101e | 210 | } else { |
92d7f7b0 | 211 | icmd->un.elsreq64.bdl.bdeSize = sizeof(struct ulp_bde64); |
dea3101e JB |
212 | icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX; |
213 | } | |
dea3101e JB |
214 | icmd->ulpBdeCount = 1; |
215 | icmd->ulpLe = 1; | |
216 | icmd->ulpClass = CLASS3; | |
217 | ||
92d7f7b0 JS |
218 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
219 | icmd->un.elsreq64.myID = vport->fc_myDID; | |
220 | ||
221 | /* For ELS_REQUEST64_CR, use the VPI by default */ | |
222 | icmd->ulpContext = vport->vpi; | |
223 | icmd->ulpCt_h = 0; | |
224 | icmd->ulpCt_l = 1; | |
225 | } | |
226 | ||
dea3101e JB |
227 | bpl = (struct ulp_bde64 *) pbuflist->virt; |
228 | bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys)); | |
229 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys)); | |
230 | bpl->tus.f.bdeSize = cmdSize; | |
231 | bpl->tus.f.bdeFlags = 0; | |
232 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
233 | ||
234 | if (expectRsp) { | |
235 | bpl++; | |
236 | bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys)); | |
237 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys)); | |
238 | bpl->tus.f.bdeSize = FCELSSIZE; | |
34b02dcd | 239 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; |
dea3101e JB |
240 | bpl->tus.w = le32_to_cpu(bpl->tus.w); |
241 | } | |
242 | ||
fa4066b6 | 243 | /* prevent preparing iocb with NULL ndlp reference */ |
51ef4c26 | 244 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
fa4066b6 JS |
245 | if (!elsiocb->context1) |
246 | goto els_iocb_free_pbuf_exit; | |
329f9bc7 JS |
247 | elsiocb->context2 = pcmd; |
248 | elsiocb->context3 = pbuflist; | |
dea3101e | 249 | elsiocb->retry = retry; |
2e0fef85 | 250 | elsiocb->vport = vport; |
dea3101e JB |
251 | elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT; |
252 | ||
253 | if (prsp) { | |
254 | list_add(&prsp->list, &pcmd->list); | |
255 | } | |
dea3101e JB |
256 | if (expectRsp) { |
257 | /* Xmit ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
258 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
259 | "0116 Xmit ELS command x%x to remote " | |
260 | "NPORT x%x I/O tag: x%x, port state: x%x\n", | |
261 | elscmd, did, elsiocb->iotag, | |
262 | vport->port_state); | |
dea3101e JB |
263 | } else { |
264 | /* Xmit ELS response <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
265 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
266 | "0117 Xmit ELS response x%x to remote " | |
267 | "NPORT x%x I/O tag: x%x, size: x%x\n", | |
268 | elscmd, ndlp->nlp_DID, elsiocb->iotag, | |
269 | cmdSize); | |
dea3101e | 270 | } |
c9f8735b | 271 | return elsiocb; |
dea3101e | 272 | |
fa4066b6 JS |
273 | els_iocb_free_pbuf_exit: |
274 | lpfc_mbuf_free(phba, prsp->virt, prsp->phys); | |
275 | kfree(pbuflist); | |
276 | ||
277 | els_iocb_free_prsp_exit: | |
278 | lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); | |
279 | kfree(prsp); | |
280 | ||
281 | els_iocb_free_pcmb_exit: | |
282 | kfree(pcmd); | |
283 | lpfc_sli_release_iocbq(phba, elsiocb); | |
284 | return NULL; | |
285 | } | |
dea3101e | 286 | |
e59058c4 JS |
287 | /** |
288 | * lpfc_issue_fabric_reglogin: Issue fabric registration login for a vport. | |
289 | * @vport: pointer to a host virtual N_Port data structure. | |
290 | * | |
291 | * This routine issues a fabric registration login for a @vport. An | |
292 | * active ndlp node with Fabric_DID must already exist for this @vport. | |
293 | * The routine invokes two mailbox commands to carry out fabric registration | |
294 | * login through the HBA firmware: the first mailbox command requests the | |
295 | * HBA to perform link configuration for the @vport; and the second mailbox | |
296 | * command requests the HBA to perform the actual fabric registration login | |
297 | * with the @vport. | |
298 | * | |
299 | * Return code | |
300 | * 0 - successfully issued fabric registration login for @vport | |
301 | * -ENXIO -- failed to issue fabric registration login for @vport | |
302 | **/ | |
dea3101e | 303 | static int |
92d7f7b0 | 304 | lpfc_issue_fabric_reglogin(struct lpfc_vport *vport) |
dea3101e | 305 | { |
2e0fef85 | 306 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 307 | LPFC_MBOXQ_t *mbox; |
14691150 | 308 | struct lpfc_dmabuf *mp; |
92d7f7b0 JS |
309 | struct lpfc_nodelist *ndlp; |
310 | struct serv_parm *sp; | |
dea3101e | 311 | int rc; |
98c9ea5c | 312 | int err = 0; |
dea3101e | 313 | |
92d7f7b0 JS |
314 | sp = &phba->fc_fabparam; |
315 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
e47c9093 | 316 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
98c9ea5c | 317 | err = 1; |
92d7f7b0 | 318 | goto fail; |
98c9ea5c | 319 | } |
92d7f7b0 JS |
320 | |
321 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
98c9ea5c JS |
322 | if (!mbox) { |
323 | err = 2; | |
92d7f7b0 | 324 | goto fail; |
98c9ea5c | 325 | } |
92d7f7b0 JS |
326 | |
327 | vport->port_state = LPFC_FABRIC_CFG_LINK; | |
328 | lpfc_config_link(phba, mbox); | |
329 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
330 | mbox->vport = vport; | |
331 | ||
0b727fea | 332 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
98c9ea5c JS |
333 | if (rc == MBX_NOT_FINISHED) { |
334 | err = 3; | |
92d7f7b0 | 335 | goto fail_free_mbox; |
98c9ea5c | 336 | } |
92d7f7b0 JS |
337 | |
338 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
98c9ea5c JS |
339 | if (!mbox) { |
340 | err = 4; | |
92d7f7b0 | 341 | goto fail; |
98c9ea5c | 342 | } |
92d7f7b0 JS |
343 | rc = lpfc_reg_login(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox, |
344 | 0); | |
98c9ea5c JS |
345 | if (rc) { |
346 | err = 5; | |
92d7f7b0 | 347 | goto fail_free_mbox; |
98c9ea5c | 348 | } |
92d7f7b0 JS |
349 | |
350 | mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login; | |
351 | mbox->vport = vport; | |
e47c9093 JS |
352 | /* increment the reference count on ndlp to hold reference |
353 | * for the callback routine. | |
354 | */ | |
92d7f7b0 JS |
355 | mbox->context2 = lpfc_nlp_get(ndlp); |
356 | ||
0b727fea | 357 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
98c9ea5c JS |
358 | if (rc == MBX_NOT_FINISHED) { |
359 | err = 6; | |
92d7f7b0 | 360 | goto fail_issue_reg_login; |
98c9ea5c | 361 | } |
92d7f7b0 JS |
362 | |
363 | return 0; | |
364 | ||
365 | fail_issue_reg_login: | |
e47c9093 JS |
366 | /* decrement the reference count on ndlp just incremented |
367 | * for the failed mbox command. | |
368 | */ | |
92d7f7b0 JS |
369 | lpfc_nlp_put(ndlp); |
370 | mp = (struct lpfc_dmabuf *) mbox->context1; | |
371 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
372 | kfree(mp); | |
373 | fail_free_mbox: | |
374 | mempool_free(mbox, phba->mbox_mem_pool); | |
375 | ||
376 | fail: | |
377 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 | 378 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
98c9ea5c | 379 | "0249 Cannot issue Register Fabric login: Err %d\n", err); |
92d7f7b0 JS |
380 | return -ENXIO; |
381 | } | |
382 | ||
e59058c4 JS |
383 | /** |
384 | * lpfc_cmpl_els_flogi_fabric: Completion function for flogi to a fabric port. | |
385 | * @vport: pointer to a host virtual N_Port data structure. | |
386 | * @ndlp: pointer to a node-list data structure. | |
387 | * @sp: pointer to service parameter data structure. | |
388 | * @irsp: pointer to the IOCB within the lpfc response IOCB. | |
389 | * | |
390 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
391 | * function to handle the completion of a Fabric Login (FLOGI) into a fabric | |
392 | * port in a fabric topology. It properly sets up the parameters to the @ndlp | |
393 | * from the IOCB response. It also check the newly assigned N_Port ID to the | |
394 | * @vport against the previously assigned N_Port ID. If it is different from | |
395 | * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine | |
396 | * is invoked on all the remaining nodes with the @vport to unregister the | |
397 | * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin() | |
398 | * is invoked to register login to the fabric. | |
399 | * | |
400 | * Return code | |
401 | * 0 - Success (currently, always return 0) | |
402 | **/ | |
92d7f7b0 JS |
403 | static int |
404 | lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, | |
405 | struct serv_parm *sp, IOCB_t *irsp) | |
406 | { | |
407 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
408 | struct lpfc_hba *phba = vport->phba; | |
409 | struct lpfc_nodelist *np; | |
410 | struct lpfc_nodelist *next_np; | |
411 | ||
2e0fef85 JS |
412 | spin_lock_irq(shost->host_lock); |
413 | vport->fc_flag |= FC_FABRIC; | |
414 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
415 | |
416 | phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov); | |
417 | if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ | |
418 | phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000; | |
419 | ||
420 | phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000; | |
421 | ||
422 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
2e0fef85 JS |
423 | spin_lock_irq(shost->host_lock); |
424 | vport->fc_flag |= FC_PUBLIC_LOOP; | |
425 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
426 | } else { |
427 | /* | |
428 | * If we are a N-port connected to a Fabric, fixup sparam's so | |
429 | * logins to devices on remote loops work. | |
430 | */ | |
2e0fef85 | 431 | vport->fc_sparam.cmn.altBbCredit = 1; |
dea3101e JB |
432 | } |
433 | ||
2e0fef85 | 434 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
dea3101e | 435 | memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name)); |
92d7f7b0 | 436 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name)); |
dea3101e JB |
437 | ndlp->nlp_class_sup = 0; |
438 | if (sp->cls1.classValid) | |
439 | ndlp->nlp_class_sup |= FC_COS_CLASS1; | |
440 | if (sp->cls2.classValid) | |
441 | ndlp->nlp_class_sup |= FC_COS_CLASS2; | |
442 | if (sp->cls3.classValid) | |
443 | ndlp->nlp_class_sup |= FC_COS_CLASS3; | |
444 | if (sp->cls4.classValid) | |
445 | ndlp->nlp_class_sup |= FC_COS_CLASS4; | |
446 | ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | | |
447 | sp->cmn.bbRcvSizeLsb; | |
448 | memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); | |
449 | ||
92d7f7b0 JS |
450 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
451 | if (sp->cmn.response_multiple_NPort) { | |
e8b62011 JS |
452 | lpfc_printf_vlog(vport, KERN_WARNING, |
453 | LOG_ELS | LOG_VPORT, | |
454 | "1816 FLOGI NPIV supported, " | |
455 | "response data 0x%x\n", | |
456 | sp->cmn.response_multiple_NPort); | |
92d7f7b0 | 457 | phba->link_flag |= LS_NPIV_FAB_SUPPORTED; |
92d7f7b0 JS |
458 | } else { |
459 | /* Because we asked f/w for NPIV it still expects us | |
e8b62011 JS |
460 | to call reg_vnpid atleast for the physcial host */ |
461 | lpfc_printf_vlog(vport, KERN_WARNING, | |
462 | LOG_ELS | LOG_VPORT, | |
463 | "1817 Fabric does not support NPIV " | |
464 | "- configuring single port mode.\n"); | |
92d7f7b0 JS |
465 | phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; |
466 | } | |
467 | } | |
dea3101e | 468 | |
92d7f7b0 JS |
469 | if ((vport->fc_prevDID != vport->fc_myDID) && |
470 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
dea3101e | 471 | |
92d7f7b0 JS |
472 | /* If our NportID changed, we need to ensure all |
473 | * remaining NPORTs get unreg_login'ed. | |
474 | */ | |
475 | list_for_each_entry_safe(np, next_np, | |
476 | &vport->fc_nodes, nlp_listp) { | |
d7c255b2 | 477 | if (!NLP_CHK_NODE_ACT(np)) |
e47c9093 | 478 | continue; |
92d7f7b0 JS |
479 | if ((np->nlp_state != NLP_STE_NPR_NODE) || |
480 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
481 | continue; | |
482 | spin_lock_irq(shost->host_lock); | |
483 | np->nlp_flag &= ~NLP_NPR_ADISC; | |
484 | spin_unlock_irq(shost->host_lock); | |
485 | lpfc_unreg_rpi(vport, np); | |
486 | } | |
487 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { | |
488 | lpfc_mbx_unreg_vpi(vport); | |
09372820 | 489 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 490 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
09372820 | 491 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 JS |
492 | } |
493 | } | |
dea3101e | 494 | |
92d7f7b0 | 495 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); |
dea3101e | 496 | |
92d7f7b0 JS |
497 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED && |
498 | vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) { | |
499 | lpfc_register_new_vport(phba, vport, ndlp); | |
500 | return 0; | |
501 | } | |
502 | lpfc_issue_fabric_reglogin(vport); | |
dea3101e | 503 | return 0; |
dea3101e JB |
504 | } |
505 | ||
e59058c4 JS |
506 | /** |
507 | * lpfc_cmpl_els_flogi_nport: Completion function for flogi to an N_Port. | |
508 | * @vport: pointer to a host virtual N_Port data structure. | |
509 | * @ndlp: pointer to a node-list data structure. | |
510 | * @sp: pointer to service parameter data structure. | |
511 | * | |
512 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
513 | * function to handle the completion of a Fabric Login (FLOGI) into an N_Port | |
514 | * in a point-to-point topology. First, the @vport's N_Port Name is compared | |
515 | * with the received N_Port Name: if the @vport's N_Port Name is greater than | |
516 | * the received N_Port Name lexicographically, this node shall assign local | |
517 | * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and | |
518 | * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise, | |
519 | * this node shall just wait for the remote node to issue PLOGI and assign | |
520 | * N_Port IDs. | |
521 | * | |
522 | * Return code | |
523 | * 0 - Success | |
524 | * -ENXIO - Fail | |
525 | **/ | |
dea3101e | 526 | static int |
2e0fef85 JS |
527 | lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
528 | struct serv_parm *sp) | |
dea3101e | 529 | { |
2e0fef85 JS |
530 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
531 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
532 | LPFC_MBOXQ_t *mbox; |
533 | int rc; | |
534 | ||
2e0fef85 JS |
535 | spin_lock_irq(shost->host_lock); |
536 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
537 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
538 | |
539 | phba->fc_edtov = FF_DEF_EDTOV; | |
540 | phba->fc_ratov = FF_DEF_RATOV; | |
2e0fef85 | 541 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 542 | sizeof(vport->fc_portname)); |
dea3101e JB |
543 | if (rc >= 0) { |
544 | /* This side will initiate the PLOGI */ | |
2e0fef85 JS |
545 | spin_lock_irq(shost->host_lock); |
546 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
547 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
548 | |
549 | /* | |
550 | * N_Port ID cannot be 0, set our to LocalID the other | |
551 | * side will be RemoteID. | |
552 | */ | |
553 | ||
554 | /* not equal */ | |
555 | if (rc) | |
2e0fef85 | 556 | vport->fc_myDID = PT2PT_LocalID; |
dea3101e JB |
557 | |
558 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
559 | if (!mbox) | |
560 | goto fail; | |
561 | ||
562 | lpfc_config_link(phba, mbox); | |
563 | ||
564 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
ed957684 | 565 | mbox->vport = vport; |
0b727fea | 566 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
dea3101e JB |
567 | if (rc == MBX_NOT_FINISHED) { |
568 | mempool_free(mbox, phba->mbox_mem_pool); | |
569 | goto fail; | |
570 | } | |
e47c9093 JS |
571 | /* Decrement ndlp reference count indicating that ndlp can be |
572 | * safely released when other references to it are done. | |
573 | */ | |
329f9bc7 | 574 | lpfc_nlp_put(ndlp); |
dea3101e | 575 | |
2e0fef85 | 576 | ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID); |
dea3101e JB |
577 | if (!ndlp) { |
578 | /* | |
579 | * Cannot find existing Fabric ndlp, so allocate a | |
580 | * new one | |
581 | */ | |
582 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
583 | if (!ndlp) | |
584 | goto fail; | |
2e0fef85 | 585 | lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID); |
e47c9093 JS |
586 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
587 | ndlp = lpfc_enable_node(vport, ndlp, | |
588 | NLP_STE_UNUSED_NODE); | |
589 | if(!ndlp) | |
590 | goto fail; | |
dea3101e JB |
591 | } |
592 | ||
593 | memcpy(&ndlp->nlp_portname, &sp->portName, | |
2e0fef85 | 594 | sizeof(struct lpfc_name)); |
dea3101e | 595 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, |
2e0fef85 | 596 | sizeof(struct lpfc_name)); |
e47c9093 | 597 | /* Set state will put ndlp onto node list if not already done */ |
2e0fef85 JS |
598 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
599 | spin_lock_irq(shost->host_lock); | |
dea3101e | 600 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 601 | spin_unlock_irq(shost->host_lock); |
e47c9093 JS |
602 | } else |
603 | /* This side will wait for the PLOGI, decrement ndlp reference | |
604 | * count indicating that ndlp can be released when other | |
605 | * references to it are done. | |
606 | */ | |
329f9bc7 | 607 | lpfc_nlp_put(ndlp); |
dea3101e | 608 | |
09372820 JS |
609 | /* If we are pt2pt with another NPort, force NPIV off! */ |
610 | phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; | |
611 | ||
2e0fef85 JS |
612 | spin_lock_irq(shost->host_lock); |
613 | vport->fc_flag |= FC_PT2PT; | |
614 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
615 | |
616 | /* Start discovery - this should just do CLEAR_LA */ | |
2e0fef85 | 617 | lpfc_disc_start(vport); |
dea3101e | 618 | return 0; |
92d7f7b0 | 619 | fail: |
dea3101e JB |
620 | return -ENXIO; |
621 | } | |
622 | ||
e59058c4 JS |
623 | /** |
624 | * lpfc_cmpl_els_flogi: Completion callback function for flogi. | |
625 | * @phba: pointer to lpfc hba data structure. | |
626 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
627 | * @rspiocb: pointer to lpfc response iocb data structure. | |
628 | * | |
629 | * This routine is the top-level completion callback function for issuing | |
630 | * a Fabric Login (FLOGI) command. If the response IOCB reported error, | |
631 | * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If | |
632 | * retry has been made (either immediately or delayed with lpfc_els_retry() | |
633 | * returning 1), the command IOCB will be released and function returned. | |
634 | * If the retry attempt has been given up (possibly reach the maximum | |
635 | * number of retries), one additional decrement of ndlp reference shall be | |
636 | * invoked before going out after releasing the command IOCB. This will | |
637 | * actually release the remote node (Note, lpfc_els_free_iocb() will also | |
638 | * invoke one decrement of ndlp reference count). If no error reported in | |
639 | * the IOCB status, the command Port ID field is used to determine whether | |
640 | * this is a point-to-point topology or a fabric topology: if the Port ID | |
641 | * field is assigned, it is a fabric topology; otherwise, it is a | |
642 | * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or | |
643 | * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the | |
644 | * specific topology completion conditions. | |
645 | **/ | |
dea3101e | 646 | static void |
329f9bc7 JS |
647 | lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
648 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 649 | { |
2e0fef85 JS |
650 | struct lpfc_vport *vport = cmdiocb->vport; |
651 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
652 | IOCB_t *irsp = &rspiocb->iocb; |
653 | struct lpfc_nodelist *ndlp = cmdiocb->context1; | |
654 | struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp; | |
655 | struct serv_parm *sp; | |
656 | int rc; | |
657 | ||
658 | /* Check to see if link went down during discovery */ | |
2e0fef85 | 659 | if (lpfc_els_chk_latt(vport)) { |
fa4066b6 JS |
660 | /* One additional decrement on node reference count to |
661 | * trigger the release of the node | |
662 | */ | |
329f9bc7 | 663 | lpfc_nlp_put(ndlp); |
dea3101e JB |
664 | goto out; |
665 | } | |
666 | ||
858c9f6c JS |
667 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
668 | "FLOGI cmpl: status:x%x/x%x state:x%x", | |
669 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
670 | vport->port_state); | |
671 | ||
dea3101e JB |
672 | if (irsp->ulpStatus) { |
673 | /* Check for retry */ | |
2e0fef85 | 674 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e | 675 | goto out; |
2e0fef85 | 676 | |
dea3101e | 677 | /* FLOGI failed, so there is no fabric */ |
2e0fef85 JS |
678 | spin_lock_irq(shost->host_lock); |
679 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
680 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 681 | |
329f9bc7 | 682 | /* If private loop, then allow max outstanding els to be |
dea3101e JB |
683 | * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no |
684 | * alpa map would take too long otherwise. | |
685 | */ | |
686 | if (phba->alpa_map[0] == 0) { | |
3de2a653 | 687 | vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS; |
dea3101e JB |
688 | } |
689 | ||
690 | /* FLOGI failure */ | |
e8b62011 JS |
691 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
692 | "0100 FLOGI failure Data: x%x x%x " | |
693 | "x%x\n", | |
694 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
695 | irsp->ulpTimeout); | |
dea3101e JB |
696 | goto flogifail; |
697 | } | |
698 | ||
699 | /* | |
700 | * The FLogI succeeded. Sync the data for the CPU before | |
701 | * accessing it. | |
702 | */ | |
703 | prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); | |
704 | ||
705 | sp = prsp->virt + sizeof(uint32_t); | |
706 | ||
707 | /* FLOGI completes successfully */ | |
e8b62011 JS |
708 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
709 | "0101 FLOGI completes sucessfully " | |
710 | "Data: x%x x%x x%x x%x\n", | |
711 | irsp->un.ulpWord[4], sp->cmn.e_d_tov, | |
712 | sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution); | |
dea3101e | 713 | |
2e0fef85 | 714 | if (vport->port_state == LPFC_FLOGI) { |
dea3101e JB |
715 | /* |
716 | * If Common Service Parameters indicate Nport | |
717 | * we are point to point, if Fport we are Fabric. | |
718 | */ | |
719 | if (sp->cmn.fPort) | |
2e0fef85 | 720 | rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp); |
dea3101e | 721 | else |
2e0fef85 | 722 | rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp); |
dea3101e JB |
723 | |
724 | if (!rc) | |
725 | goto out; | |
726 | } | |
727 | ||
728 | flogifail: | |
329f9bc7 | 729 | lpfc_nlp_put(ndlp); |
dea3101e | 730 | |
858c9f6c | 731 | if (!lpfc_error_lost_link(irsp)) { |
dea3101e | 732 | /* FLOGI failed, so just use loop map to make discovery list */ |
2e0fef85 | 733 | lpfc_disc_list_loopmap(vport); |
dea3101e JB |
734 | |
735 | /* Start discovery */ | |
2e0fef85 | 736 | lpfc_disc_start(vport); |
87af33fe JS |
737 | } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || |
738 | ((irsp->un.ulpWord[4] != IOERR_SLI_ABORTED) && | |
739 | (irsp->un.ulpWord[4] != IOERR_SLI_DOWN))) && | |
740 | (phba->link_state != LPFC_CLEAR_LA)) { | |
741 | /* If FLOGI failed enable link interrupt. */ | |
742 | lpfc_issue_clear_la(phba, vport); | |
dea3101e | 743 | } |
dea3101e JB |
744 | out: |
745 | lpfc_els_free_iocb(phba, cmdiocb); | |
746 | } | |
747 | ||
e59058c4 JS |
748 | /** |
749 | * lpfc_issue_els_flogi: Issue an flogi iocb command for a vport. | |
750 | * @vport: pointer to a host virtual N_Port data structure. | |
751 | * @ndlp: pointer to a node-list data structure. | |
752 | * @retry: number of retries to the command IOCB. | |
753 | * | |
754 | * This routine issues a Fabric Login (FLOGI) Request ELS command | |
755 | * for a @vport. The initiator service parameters are put into the payload | |
756 | * of the FLOGI Request IOCB and the top-level callback function pointer | |
757 | * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback | |
758 | * function field. The lpfc_issue_fabric_iocb routine is invoked to send | |
759 | * out FLOGI ELS command with one outstanding fabric IOCB at a time. | |
760 | * | |
761 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
762 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
763 | * will be stored into the context1 field of the IOCB for the completion | |
764 | * callback function to the FLOGI ELS command. | |
765 | * | |
766 | * Return code | |
767 | * 0 - successfully issued flogi iocb for @vport | |
768 | * 1 - failed to issue flogi iocb for @vport | |
769 | **/ | |
dea3101e | 770 | static int |
2e0fef85 | 771 | lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
772 | uint8_t retry) |
773 | { | |
2e0fef85 | 774 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
775 | struct serv_parm *sp; |
776 | IOCB_t *icmd; | |
777 | struct lpfc_iocbq *elsiocb; | |
778 | struct lpfc_sli_ring *pring; | |
779 | uint8_t *pcmd; | |
780 | uint16_t cmdsize; | |
781 | uint32_t tmo; | |
782 | int rc; | |
783 | ||
784 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
785 | ||
92d7f7b0 | 786 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
2e0fef85 JS |
787 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
788 | ndlp->nlp_DID, ELS_CMD_FLOGI); | |
92d7f7b0 | 789 | |
488d1469 | 790 | if (!elsiocb) |
c9f8735b | 791 | return 1; |
dea3101e JB |
792 | |
793 | icmd = &elsiocb->iocb; | |
794 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
795 | ||
796 | /* For FLOGI request, remainder of payload is service parameters */ | |
797 | *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI; | |
92d7f7b0 JS |
798 | pcmd += sizeof(uint32_t); |
799 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e JB |
800 | sp = (struct serv_parm *) pcmd; |
801 | ||
802 | /* Setup CSPs accordingly for Fabric */ | |
803 | sp->cmn.e_d_tov = 0; | |
804 | sp->cmn.w2.r_a_tov = 0; | |
805 | sp->cls1.classValid = 0; | |
806 | sp->cls2.seqDelivery = 1; | |
807 | sp->cls3.seqDelivery = 1; | |
808 | if (sp->cmn.fcphLow < FC_PH3) | |
809 | sp->cmn.fcphLow = FC_PH3; | |
810 | if (sp->cmn.fcphHigh < FC_PH3) | |
811 | sp->cmn.fcphHigh = FC_PH3; | |
812 | ||
92d7f7b0 JS |
813 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
814 | sp->cmn.request_multiple_Nport = 1; | |
815 | ||
816 | /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */ | |
817 | icmd->ulpCt_h = 1; | |
818 | icmd->ulpCt_l = 0; | |
819 | } | |
820 | ||
858c9f6c JS |
821 | if (phba->fc_topology != TOPOLOGY_LOOP) { |
822 | icmd->un.elsreq64.myID = 0; | |
823 | icmd->un.elsreq64.fl = 1; | |
824 | } | |
825 | ||
dea3101e JB |
826 | tmo = phba->fc_ratov; |
827 | phba->fc_ratov = LPFC_DISC_FLOGI_TMO; | |
2e0fef85 | 828 | lpfc_set_disctmo(vport); |
dea3101e JB |
829 | phba->fc_ratov = tmo; |
830 | ||
831 | phba->fc_stat.elsXmitFLOGI++; | |
832 | elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi; | |
858c9f6c JS |
833 | |
834 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
835 | "Issue FLOGI: opt:x%x", | |
836 | phba->sli3_options, 0, 0); | |
837 | ||
92d7f7b0 | 838 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
dea3101e JB |
839 | if (rc == IOCB_ERROR) { |
840 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 841 | return 1; |
dea3101e | 842 | } |
c9f8735b | 843 | return 0; |
dea3101e JB |
844 | } |
845 | ||
e59058c4 JS |
846 | /** |
847 | * lpfc_els_abort_flogi: Abort all outstanding flogi iocbs. | |
848 | * @phba: pointer to lpfc hba data structure. | |
849 | * | |
850 | * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs | |
851 | * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq | |
852 | * list and issues an abort IOCB commond on each outstanding IOCB that | |
853 | * contains a active Fabric_DID ndlp. Note that this function is to issue | |
854 | * the abort IOCB command on all the outstanding IOCBs, thus when this | |
855 | * function returns, it does not guarantee all the IOCBs are actually aborted. | |
856 | * | |
857 | * Return code | |
858 | * 0 - Sucessfully issued abort iocb on all outstanding flogis (Always 0) | |
859 | **/ | |
dea3101e | 860 | int |
2e0fef85 | 861 | lpfc_els_abort_flogi(struct lpfc_hba *phba) |
dea3101e JB |
862 | { |
863 | struct lpfc_sli_ring *pring; | |
864 | struct lpfc_iocbq *iocb, *next_iocb; | |
865 | struct lpfc_nodelist *ndlp; | |
866 | IOCB_t *icmd; | |
867 | ||
868 | /* Abort outstanding I/O on NPort <nlp_DID> */ | |
869 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
e8b62011 JS |
870 | "0201 Abort outstanding I/O on NPort x%x\n", |
871 | Fabric_DID); | |
dea3101e JB |
872 | |
873 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
874 | ||
875 | /* | |
876 | * Check the txcmplq for an iocb that matches the nport the driver is | |
877 | * searching for. | |
878 | */ | |
2e0fef85 | 879 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
880 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { |
881 | icmd = &iocb->iocb; | |
2e0fef85 JS |
882 | if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR && |
883 | icmd->un.elsreq64.bdl.ulpIoTag32) { | |
dea3101e | 884 | ndlp = (struct lpfc_nodelist *)(iocb->context1); |
58da1ffb JS |
885 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
886 | (ndlp->nlp_DID == Fabric_DID)) | |
07951076 | 887 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); |
dea3101e JB |
888 | } |
889 | } | |
2e0fef85 | 890 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
891 | |
892 | return 0; | |
893 | } | |
894 | ||
e59058c4 JS |
895 | /** |
896 | * lpfc_initial_flogi: Issue an initial fabric login for a vport. | |
897 | * @vport: pointer to a host virtual N_Port data structure. | |
898 | * | |
899 | * This routine issues an initial Fabric Login (FLOGI) for the @vport | |
900 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
901 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
902 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
903 | * it will just be enabled and made active. The lpfc_issue_els_flogi() routine | |
904 | * is then invoked with the @vport and the ndlp to perform the FLOGI for the | |
905 | * @vport. | |
906 | * | |
907 | * Return code | |
908 | * 0 - failed to issue initial flogi for @vport | |
909 | * 1 - successfully issued initial flogi for @vport | |
910 | **/ | |
dea3101e | 911 | int |
2e0fef85 | 912 | lpfc_initial_flogi(struct lpfc_vport *vport) |
dea3101e | 913 | { |
2e0fef85 | 914 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
915 | struct lpfc_nodelist *ndlp; |
916 | ||
98c9ea5c JS |
917 | vport->port_state = LPFC_FLOGI; |
918 | lpfc_set_disctmo(vport); | |
919 | ||
c9f8735b | 920 | /* First look for the Fabric ndlp */ |
2e0fef85 | 921 | ndlp = lpfc_findnode_did(vport, Fabric_DID); |
c9f8735b | 922 | if (!ndlp) { |
dea3101e | 923 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b JW |
924 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
925 | if (!ndlp) | |
926 | return 0; | |
2e0fef85 | 927 | lpfc_nlp_init(vport, ndlp, Fabric_DID); |
e47c9093 JS |
928 | /* Put ndlp onto node list */ |
929 | lpfc_enqueue_node(vport, ndlp); | |
930 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
931 | /* re-setup ndlp without removing from node list */ | |
932 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
933 | if (!ndlp) | |
934 | return 0; | |
dea3101e | 935 | } |
87af33fe | 936 | |
e47c9093 | 937 | if (lpfc_issue_els_flogi(vport, ndlp, 0)) |
fa4066b6 JS |
938 | /* This decrement of reference count to node shall kick off |
939 | * the release of the node. | |
940 | */ | |
329f9bc7 | 941 | lpfc_nlp_put(ndlp); |
e47c9093 | 942 | |
c9f8735b | 943 | return 1; |
dea3101e JB |
944 | } |
945 | ||
e59058c4 JS |
946 | /** |
947 | * lpfc_initial_fdisc: Issue an initial fabric discovery for a vport. | |
948 | * @vport: pointer to a host virtual N_Port data structure. | |
949 | * | |
950 | * This routine issues an initial Fabric Discover (FDISC) for the @vport | |
951 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
952 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
953 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
954 | * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine | |
955 | * is then invoked with the @vport and the ndlp to perform the FDISC for the | |
956 | * @vport. | |
957 | * | |
958 | * Return code | |
959 | * 0 - failed to issue initial fdisc for @vport | |
960 | * 1 - successfully issued initial fdisc for @vport | |
961 | **/ | |
92d7f7b0 JS |
962 | int |
963 | lpfc_initial_fdisc(struct lpfc_vport *vport) | |
964 | { | |
965 | struct lpfc_hba *phba = vport->phba; | |
966 | struct lpfc_nodelist *ndlp; | |
967 | ||
968 | /* First look for the Fabric ndlp */ | |
969 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
970 | if (!ndlp) { | |
971 | /* Cannot find existing Fabric ndlp, so allocate a new one */ | |
972 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
973 | if (!ndlp) | |
974 | return 0; | |
975 | lpfc_nlp_init(vport, ndlp, Fabric_DID); | |
e47c9093 JS |
976 | /* Put ndlp onto node list */ |
977 | lpfc_enqueue_node(vport, ndlp); | |
978 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
979 | /* re-setup ndlp without removing from node list */ | |
980 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
981 | if (!ndlp) | |
982 | return 0; | |
92d7f7b0 | 983 | } |
e47c9093 | 984 | |
92d7f7b0 | 985 | if (lpfc_issue_els_fdisc(vport, ndlp, 0)) { |
fa4066b6 JS |
986 | /* decrement node reference count to trigger the release of |
987 | * the node. | |
988 | */ | |
92d7f7b0 | 989 | lpfc_nlp_put(ndlp); |
fa4066b6 | 990 | return 0; |
92d7f7b0 JS |
991 | } |
992 | return 1; | |
993 | } | |
87af33fe | 994 | |
e59058c4 JS |
995 | /** |
996 | * lpfc_more_plogi: Check and issue remaining plogis for a vport. | |
997 | * @vport: pointer to a host virtual N_Port data structure. | |
998 | * | |
999 | * This routine checks whether there are more remaining Port Logins | |
1000 | * (PLOGI) to be issued for the @vport. If so, it will invoke the routine | |
1001 | * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes | |
1002 | * to issue ELS PLOGIs up to the configured discover threads with the | |
1003 | * @vport (@vport->cfg_discovery_threads). The function also decrement | |
1004 | * the @vport's num_disc_node by 1 if it is not already 0. | |
1005 | **/ | |
87af33fe | 1006 | void |
2e0fef85 | 1007 | lpfc_more_plogi(struct lpfc_vport *vport) |
dea3101e JB |
1008 | { |
1009 | int sentplogi; | |
1010 | ||
2e0fef85 JS |
1011 | if (vport->num_disc_nodes) |
1012 | vport->num_disc_nodes--; | |
dea3101e JB |
1013 | |
1014 | /* Continue discovery with <num_disc_nodes> PLOGIs to go */ | |
e8b62011 JS |
1015 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
1016 | "0232 Continue discovery with %d PLOGIs to go " | |
1017 | "Data: x%x x%x x%x\n", | |
1018 | vport->num_disc_nodes, vport->fc_plogi_cnt, | |
1019 | vport->fc_flag, vport->port_state); | |
dea3101e | 1020 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 JS |
1021 | if (vport->fc_flag & FC_NLP_MORE) |
1022 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ | |
1023 | sentplogi = lpfc_els_disc_plogi(vport); | |
1024 | ||
dea3101e JB |
1025 | return; |
1026 | } | |
1027 | ||
e59058c4 JS |
1028 | /** |
1029 | * lpfc_plogi_confirm_nport: Confirm pologi wwpn matches stored ndlp. | |
1030 | * @phba: pointer to lpfc hba data structure. | |
1031 | * @prsp: pointer to response IOCB payload. | |
1032 | * @ndlp: pointer to a node-list data structure. | |
1033 | * | |
1034 | * This routine checks and indicates whether the WWPN of an N_Port, retrieved | |
1035 | * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt. | |
1036 | * The following cases are considered N_Port confirmed: | |
1037 | * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches | |
1038 | * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but | |
1039 | * it does not have WWPN assigned either. If the WWPN is confirmed, the | |
1040 | * pointer to the @ndlp will be returned. If the WWPN is not confirmed: | |
1041 | * 1) if there is a node on vport list other than the @ndlp with the same | |
1042 | * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked | |
1043 | * on that node to release the RPI associated with the node; 2) if there is | |
1044 | * no node found on vport list with the same WWPN of the N_Port PLOGI logged | |
1045 | * into, a new node shall be allocated (or activated). In either case, the | |
1046 | * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall | |
1047 | * be released and the new_ndlp shall be put on to the vport node list and | |
1048 | * its pointer returned as the confirmed node. | |
1049 | * | |
1050 | * Note that before the @ndlp got "released", the keepDID from not-matching | |
1051 | * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID | |
1052 | * of the @ndlp. This is because the release of @ndlp is actually to put it | |
1053 | * into an inactive state on the vport node list and the vport node list | |
1054 | * management algorithm does not allow two node with a same DID. | |
1055 | * | |
1056 | * Return code | |
1057 | * pointer to the PLOGI N_Port @ndlp | |
1058 | **/ | |
488d1469 | 1059 | static struct lpfc_nodelist * |
92d7f7b0 | 1060 | lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, |
488d1469 JS |
1061 | struct lpfc_nodelist *ndlp) |
1062 | { | |
2e0fef85 | 1063 | struct lpfc_vport *vport = ndlp->vport; |
488d1469 | 1064 | struct lpfc_nodelist *new_ndlp; |
0ff10d46 JS |
1065 | struct lpfc_rport_data *rdata; |
1066 | struct fc_rport *rport; | |
488d1469 | 1067 | struct serv_parm *sp; |
92d7f7b0 | 1068 | uint8_t name[sizeof(struct lpfc_name)]; |
58da1ffb | 1069 | uint32_t rc, keepDID = 0; |
488d1469 | 1070 | |
2fb9bd8b JS |
1071 | /* Fabric nodes can have the same WWPN so we don't bother searching |
1072 | * by WWPN. Just return the ndlp that was given to us. | |
1073 | */ | |
1074 | if (ndlp->nlp_type & NLP_FABRIC) | |
1075 | return ndlp; | |
1076 | ||
92d7f7b0 | 1077 | sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t)); |
685f0bf7 | 1078 | memset(name, 0, sizeof(struct lpfc_name)); |
488d1469 | 1079 | |
685f0bf7 | 1080 | /* Now we find out if the NPort we are logging into, matches the WWPN |
488d1469 JS |
1081 | * we have for that ndlp. If not, we have some work to do. |
1082 | */ | |
2e0fef85 | 1083 | new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName); |
488d1469 | 1084 | |
e47c9093 | 1085 | if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp)) |
488d1469 | 1086 | return ndlp; |
488d1469 JS |
1087 | |
1088 | if (!new_ndlp) { | |
2e0fef85 JS |
1089 | rc = memcmp(&ndlp->nlp_portname, name, |
1090 | sizeof(struct lpfc_name)); | |
92795650 JS |
1091 | if (!rc) |
1092 | return ndlp; | |
488d1469 JS |
1093 | new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC); |
1094 | if (!new_ndlp) | |
1095 | return ndlp; | |
2e0fef85 | 1096 | lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID); |
e47c9093 | 1097 | } else if (!NLP_CHK_NODE_ACT(new_ndlp)) { |
58da1ffb JS |
1098 | rc = memcmp(&ndlp->nlp_portname, name, |
1099 | sizeof(struct lpfc_name)); | |
1100 | if (!rc) | |
1101 | return ndlp; | |
e47c9093 JS |
1102 | new_ndlp = lpfc_enable_node(vport, new_ndlp, |
1103 | NLP_STE_UNUSED_NODE); | |
1104 | if (!new_ndlp) | |
1105 | return ndlp; | |
58da1ffb JS |
1106 | keepDID = new_ndlp->nlp_DID; |
1107 | } else | |
1108 | keepDID = new_ndlp->nlp_DID; | |
488d1469 | 1109 | |
2e0fef85 | 1110 | lpfc_unreg_rpi(vport, new_ndlp); |
488d1469 | 1111 | new_ndlp->nlp_DID = ndlp->nlp_DID; |
92795650 | 1112 | new_ndlp->nlp_prev_state = ndlp->nlp_prev_state; |
0ff10d46 JS |
1113 | |
1114 | if (ndlp->nlp_flag & NLP_NPR_2B_DISC) | |
1115 | new_ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
1116 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; | |
1117 | ||
e47c9093 | 1118 | /* Set state will put new_ndlp on to node list if not already done */ |
2e0fef85 | 1119 | lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state); |
488d1469 | 1120 | |
2e0fef85 | 1121 | /* Move this back to NPR state */ |
87af33fe JS |
1122 | if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) { |
1123 | /* The new_ndlp is replacing ndlp totally, so we need | |
1124 | * to put ndlp on UNUSED list and try to free it. | |
1125 | */ | |
0ff10d46 JS |
1126 | |
1127 | /* Fix up the rport accordingly */ | |
1128 | rport = ndlp->rport; | |
1129 | if (rport) { | |
1130 | rdata = rport->dd_data; | |
1131 | if (rdata->pnode == ndlp) { | |
1132 | lpfc_nlp_put(ndlp); | |
1133 | ndlp->rport = NULL; | |
1134 | rdata->pnode = lpfc_nlp_get(new_ndlp); | |
1135 | new_ndlp->rport = rport; | |
1136 | } | |
1137 | new_ndlp->nlp_type = ndlp->nlp_type; | |
1138 | } | |
58da1ffb JS |
1139 | /* We shall actually free the ndlp with both nlp_DID and |
1140 | * nlp_portname fields equals 0 to avoid any ndlp on the | |
1141 | * nodelist never to be used. | |
1142 | */ | |
1143 | if (ndlp->nlp_DID == 0) { | |
1144 | spin_lock_irq(&phba->ndlp_lock); | |
1145 | NLP_SET_FREE_REQ(ndlp); | |
1146 | spin_unlock_irq(&phba->ndlp_lock); | |
1147 | } | |
0ff10d46 | 1148 | |
58da1ffb JS |
1149 | /* Two ndlps cannot have the same did on the nodelist */ |
1150 | ndlp->nlp_DID = keepDID; | |
2e0fef85 | 1151 | lpfc_drop_node(vport, ndlp); |
87af33fe | 1152 | } |
92795650 | 1153 | else { |
2e0fef85 | 1154 | lpfc_unreg_rpi(vport, ndlp); |
58da1ffb JS |
1155 | /* Two ndlps cannot have the same did */ |
1156 | ndlp->nlp_DID = keepDID; | |
2e0fef85 | 1157 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
92795650 | 1158 | } |
488d1469 JS |
1159 | return new_ndlp; |
1160 | } | |
1161 | ||
e59058c4 JS |
1162 | /** |
1163 | * lpfc_end_rscn: Check and handle more rscn for a vport. | |
1164 | * @vport: pointer to a host virtual N_Port data structure. | |
1165 | * | |
1166 | * This routine checks whether more Registration State Change | |
1167 | * Notifications (RSCNs) came in while the discovery state machine was in | |
1168 | * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be | |
1169 | * invoked to handle the additional RSCNs for the @vport. Otherwise, the | |
1170 | * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of | |
1171 | * handling the RSCNs. | |
1172 | **/ | |
87af33fe JS |
1173 | void |
1174 | lpfc_end_rscn(struct lpfc_vport *vport) | |
1175 | { | |
1176 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
1177 | ||
1178 | if (vport->fc_flag & FC_RSCN_MODE) { | |
1179 | /* | |
1180 | * Check to see if more RSCNs came in while we were | |
1181 | * processing this one. | |
1182 | */ | |
1183 | if (vport->fc_rscn_id_cnt || | |
1184 | (vport->fc_flag & FC_RSCN_DISCOVERY) != 0) | |
1185 | lpfc_els_handle_rscn(vport); | |
1186 | else { | |
1187 | spin_lock_irq(shost->host_lock); | |
1188 | vport->fc_flag &= ~FC_RSCN_MODE; | |
1189 | spin_unlock_irq(shost->host_lock); | |
1190 | } | |
1191 | } | |
1192 | } | |
1193 | ||
e59058c4 JS |
1194 | /** |
1195 | * lpfc_cmpl_els_plogi: Completion callback function for plogi. | |
1196 | * @phba: pointer to lpfc hba data structure. | |
1197 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1198 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1199 | * | |
1200 | * This routine is the completion callback function for issuing the Port | |
1201 | * Login (PLOGI) command. For PLOGI completion, there must be an active | |
1202 | * ndlp on the vport node list that matches the remote node ID from the | |
1203 | * PLOGI reponse IOCB. If such ndlp does not exist, the PLOGI is simply | |
1204 | * ignored and command IOCB released. The PLOGI response IOCB status is | |
1205 | * checked for error conditons. If there is error status reported, PLOGI | |
1206 | * retry shall be attempted by invoking the lpfc_els_retry() routine. | |
1207 | * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on | |
1208 | * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine | |
1209 | * (DSM) is set for this PLOGI completion. Finally, it checks whether | |
1210 | * there are additional N_Port nodes with the vport that need to perform | |
1211 | * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition | |
1212 | * PLOGIs. | |
1213 | **/ | |
dea3101e | 1214 | static void |
2e0fef85 JS |
1215 | lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1216 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1217 | { |
2e0fef85 JS |
1218 | struct lpfc_vport *vport = cmdiocb->vport; |
1219 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 1220 | IOCB_t *irsp; |
dea3101e | 1221 | struct lpfc_nodelist *ndlp; |
92795650 | 1222 | struct lpfc_dmabuf *prsp; |
dea3101e JB |
1223 | int disc, rc, did, type; |
1224 | ||
dea3101e JB |
1225 | /* we pass cmdiocb to state machine which needs rspiocb as well */ |
1226 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1227 | ||
1228 | irsp = &rspiocb->iocb; | |
858c9f6c JS |
1229 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1230 | "PLOGI cmpl: status:x%x/x%x did:x%x", | |
1231 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1232 | irsp->un.elsreq64.remoteID); | |
1233 | ||
2e0fef85 | 1234 | ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID); |
e47c9093 | 1235 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
e8b62011 JS |
1236 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1237 | "0136 PLOGI completes to NPort x%x " | |
1238 | "with no ndlp. Data: x%x x%x x%x\n", | |
1239 | irsp->un.elsreq64.remoteID, | |
1240 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1241 | irsp->ulpIoTag); | |
488d1469 | 1242 | goto out; |
ed957684 | 1243 | } |
dea3101e JB |
1244 | |
1245 | /* Since ndlp can be freed in the disc state machine, note if this node | |
1246 | * is being used during discovery. | |
1247 | */ | |
2e0fef85 | 1248 | spin_lock_irq(shost->host_lock); |
dea3101e | 1249 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
488d1469 | 1250 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 | 1251 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1252 | rc = 0; |
1253 | ||
1254 | /* PLOGI completes to NPort <nlp_DID> */ | |
e8b62011 JS |
1255 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1256 | "0102 PLOGI completes to NPort x%x " | |
1257 | "Data: x%x x%x x%x x%x x%x\n", | |
1258 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1259 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 1260 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
1261 | if (lpfc_els_chk_latt(vport)) { |
1262 | spin_lock_irq(shost->host_lock); | |
dea3101e | 1263 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1264 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1265 | goto out; |
1266 | } | |
1267 | ||
1268 | /* ndlp could be freed in DSM, save these values now */ | |
1269 | type = ndlp->nlp_type; | |
1270 | did = ndlp->nlp_DID; | |
1271 | ||
1272 | if (irsp->ulpStatus) { | |
1273 | /* Check for retry */ | |
1274 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1275 | /* ELS command is being retried */ | |
1276 | if (disc) { | |
2e0fef85 | 1277 | spin_lock_irq(shost->host_lock); |
dea3101e | 1278 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1279 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1280 | } |
1281 | goto out; | |
1282 | } | |
dea3101e JB |
1283 | /* PLOGI failed */ |
1284 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ | |
e47c9093 | 1285 | if (lpfc_error_lost_link(irsp)) |
c9f8735b | 1286 | rc = NLP_STE_FREED_NODE; |
e47c9093 | 1287 | else |
2e0fef85 | 1288 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1289 | NLP_EVT_CMPL_PLOGI); |
dea3101e JB |
1290 | } else { |
1291 | /* Good status, call state machine */ | |
92795650 | 1292 | prsp = list_entry(((struct lpfc_dmabuf *) |
92d7f7b0 JS |
1293 | cmdiocb->context2)->list.next, |
1294 | struct lpfc_dmabuf, list); | |
1295 | ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp); | |
2e0fef85 | 1296 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1297 | NLP_EVT_CMPL_PLOGI); |
dea3101e JB |
1298 | } |
1299 | ||
2e0fef85 | 1300 | if (disc && vport->num_disc_nodes) { |
dea3101e | 1301 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 | 1302 | lpfc_more_plogi(vport); |
dea3101e | 1303 | |
2e0fef85 JS |
1304 | if (vport->num_disc_nodes == 0) { |
1305 | spin_lock_irq(shost->host_lock); | |
1306 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
1307 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 1308 | |
2e0fef85 | 1309 | lpfc_can_disctmo(vport); |
87af33fe | 1310 | lpfc_end_rscn(vport); |
dea3101e JB |
1311 | } |
1312 | } | |
1313 | ||
1314 | out: | |
1315 | lpfc_els_free_iocb(phba, cmdiocb); | |
1316 | return; | |
1317 | } | |
1318 | ||
e59058c4 JS |
1319 | /** |
1320 | * lpfc_issue_els_plogi: Issue an plogi iocb command for a vport. | |
1321 | * @vport: pointer to a host virtual N_Port data structure. | |
1322 | * @did: destination port identifier. | |
1323 | * @retry: number of retries to the command IOCB. | |
1324 | * | |
1325 | * This routine issues a Port Login (PLOGI) command to a remote N_Port | |
1326 | * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port, | |
1327 | * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list. | |
1328 | * This routine constructs the proper feilds of the PLOGI IOCB and invokes | |
1329 | * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command. | |
1330 | * | |
1331 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1332 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1333 | * will be stored into the context1 field of the IOCB for the completion | |
1334 | * callback function to the PLOGI ELS command. | |
1335 | * | |
1336 | * Return code | |
1337 | * 0 - Successfully issued a plogi for @vport | |
1338 | * 1 - failed to issue a plogi for @vport | |
1339 | **/ | |
dea3101e | 1340 | int |
2e0fef85 | 1341 | lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) |
dea3101e | 1342 | { |
2e0fef85 | 1343 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
1344 | struct serv_parm *sp; |
1345 | IOCB_t *icmd; | |
98c9ea5c | 1346 | struct lpfc_nodelist *ndlp; |
dea3101e JB |
1347 | struct lpfc_iocbq *elsiocb; |
1348 | struct lpfc_sli_ring *pring; | |
1349 | struct lpfc_sli *psli; | |
1350 | uint8_t *pcmd; | |
1351 | uint16_t cmdsize; | |
92d7f7b0 | 1352 | int ret; |
dea3101e JB |
1353 | |
1354 | psli = &phba->sli; | |
1355 | pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ | |
1356 | ||
98c9ea5c | 1357 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
1358 | if (ndlp && !NLP_CHK_NODE_ACT(ndlp)) |
1359 | ndlp = NULL; | |
98c9ea5c | 1360 | |
e47c9093 | 1361 | /* If ndlp is not NULL, we will bump the reference count on it */ |
92d7f7b0 | 1362 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
98c9ea5c | 1363 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, |
2e0fef85 | 1364 | ELS_CMD_PLOGI); |
c9f8735b JW |
1365 | if (!elsiocb) |
1366 | return 1; | |
dea3101e JB |
1367 | |
1368 | icmd = &elsiocb->iocb; | |
1369 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1370 | ||
1371 | /* For PLOGI request, remainder of payload is service parameters */ | |
1372 | *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI; | |
92d7f7b0 JS |
1373 | pcmd += sizeof(uint32_t); |
1374 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e JB |
1375 | sp = (struct serv_parm *) pcmd; |
1376 | ||
1377 | if (sp->cmn.fcphLow < FC_PH_4_3) | |
1378 | sp->cmn.fcphLow = FC_PH_4_3; | |
1379 | ||
1380 | if (sp->cmn.fcphHigh < FC_PH3) | |
1381 | sp->cmn.fcphHigh = FC_PH3; | |
1382 | ||
858c9f6c JS |
1383 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1384 | "Issue PLOGI: did:x%x", | |
1385 | did, 0, 0); | |
1386 | ||
dea3101e JB |
1387 | phba->fc_stat.elsXmitPLOGI++; |
1388 | elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi; | |
92d7f7b0 JS |
1389 | ret = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); |
1390 | ||
1391 | if (ret == IOCB_ERROR) { | |
dea3101e | 1392 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1393 | return 1; |
dea3101e | 1394 | } |
c9f8735b | 1395 | return 0; |
dea3101e JB |
1396 | } |
1397 | ||
e59058c4 JS |
1398 | /** |
1399 | * lpfc_cmpl_els_prli: Completion callback function for prli. | |
1400 | * @phba: pointer to lpfc hba data structure. | |
1401 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1402 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1403 | * | |
1404 | * This routine is the completion callback function for a Process Login | |
1405 | * (PRLI) ELS command. The PRLI response IOCB status is checked for error | |
1406 | * status. If there is error status reported, PRLI retry shall be attempted | |
1407 | * by invoking the lpfc_els_retry() routine. Otherwise, the state | |
1408 | * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this | |
1409 | * ndlp to mark the PRLI completion. | |
1410 | **/ | |
dea3101e | 1411 | static void |
2e0fef85 JS |
1412 | lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1413 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1414 | { |
2e0fef85 JS |
1415 | struct lpfc_vport *vport = cmdiocb->vport; |
1416 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
1417 | IOCB_t *irsp; |
1418 | struct lpfc_sli *psli; | |
1419 | struct lpfc_nodelist *ndlp; | |
1420 | ||
1421 | psli = &phba->sli; | |
1422 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1423 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1424 | ||
1425 | irsp = &(rspiocb->iocb); | |
1426 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2e0fef85 | 1427 | spin_lock_irq(shost->host_lock); |
dea3101e | 1428 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 1429 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1430 | |
858c9f6c JS |
1431 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1432 | "PRLI cmpl: status:x%x/x%x did:x%x", | |
1433 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1434 | ndlp->nlp_DID); | |
dea3101e | 1435 | /* PRLI completes to NPort <nlp_DID> */ |
e8b62011 JS |
1436 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1437 | "0103 PRLI completes to NPort x%x " | |
1438 | "Data: x%x x%x x%x x%x\n", | |
1439 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1440 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 1441 | |
2e0fef85 | 1442 | vport->fc_prli_sent--; |
dea3101e | 1443 | /* Check to see if link went down during discovery */ |
2e0fef85 | 1444 | if (lpfc_els_chk_latt(vport)) |
dea3101e JB |
1445 | goto out; |
1446 | ||
1447 | if (irsp->ulpStatus) { | |
1448 | /* Check for retry */ | |
1449 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1450 | /* ELS command is being retried */ | |
1451 | goto out; | |
1452 | } | |
1453 | /* PRLI failed */ | |
1454 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ | |
e47c9093 | 1455 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 1456 | goto out; |
e47c9093 | 1457 | else |
2e0fef85 | 1458 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1459 | NLP_EVT_CMPL_PRLI); |
e47c9093 | 1460 | } else |
dea3101e | 1461 | /* Good status, call state machine */ |
2e0fef85 | 1462 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1463 | NLP_EVT_CMPL_PRLI); |
dea3101e JB |
1464 | out: |
1465 | lpfc_els_free_iocb(phba, cmdiocb); | |
1466 | return; | |
1467 | } | |
1468 | ||
e59058c4 JS |
1469 | /** |
1470 | * lpfc_issue_els_prli: Issue a prli iocb command for a vport. | |
1471 | * @vport: pointer to a host virtual N_Port data structure. | |
1472 | * @ndlp: pointer to a node-list data structure. | |
1473 | * @retry: number of retries to the command IOCB. | |
1474 | * | |
1475 | * This routine issues a Process Login (PRLI) ELS command for the | |
1476 | * @vport. The PRLI service parameters are set up in the payload of the | |
1477 | * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine | |
1478 | * is put to the IOCB completion callback func field before invoking the | |
1479 | * routine lpfc_sli_issue_iocb() to send out PRLI command. | |
1480 | * | |
1481 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1482 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1483 | * will be stored into the context1 field of the IOCB for the completion | |
1484 | * callback function to the PRLI ELS command. | |
1485 | * | |
1486 | * Return code | |
1487 | * 0 - successfully issued prli iocb command for @vport | |
1488 | * 1 - failed to issue prli iocb command for @vport | |
1489 | **/ | |
dea3101e | 1490 | int |
2e0fef85 | 1491 | lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
1492 | uint8_t retry) |
1493 | { | |
2e0fef85 JS |
1494 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
1495 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
1496 | PRLI *npr; |
1497 | IOCB_t *icmd; | |
1498 | struct lpfc_iocbq *elsiocb; | |
1499 | struct lpfc_sli_ring *pring; | |
1500 | struct lpfc_sli *psli; | |
1501 | uint8_t *pcmd; | |
1502 | uint16_t cmdsize; | |
1503 | ||
1504 | psli = &phba->sli; | |
1505 | pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ | |
1506 | ||
92d7f7b0 | 1507 | cmdsize = (sizeof(uint32_t) + sizeof(PRLI)); |
2e0fef85 JS |
1508 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1509 | ndlp->nlp_DID, ELS_CMD_PRLI); | |
488d1469 | 1510 | if (!elsiocb) |
c9f8735b | 1511 | return 1; |
dea3101e JB |
1512 | |
1513 | icmd = &elsiocb->iocb; | |
1514 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1515 | ||
1516 | /* For PRLI request, remainder of payload is service parameters */ | |
92d7f7b0 | 1517 | memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t))); |
dea3101e | 1518 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLI; |
92d7f7b0 | 1519 | pcmd += sizeof(uint32_t); |
dea3101e JB |
1520 | |
1521 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
1522 | npr = (PRLI *) pcmd; | |
1523 | /* | |
1524 | * If our firmware version is 3.20 or later, | |
1525 | * set the following bits for FC-TAPE support. | |
1526 | */ | |
1527 | if (phba->vpd.rev.feaLevelHigh >= 0x02) { | |
1528 | npr->ConfmComplAllowed = 1; | |
1529 | npr->Retry = 1; | |
1530 | npr->TaskRetryIdReq = 1; | |
1531 | } | |
1532 | npr->estabImagePair = 1; | |
1533 | npr->readXferRdyDis = 1; | |
1534 | ||
1535 | /* For FCP support */ | |
1536 | npr->prliType = PRLI_FCP_TYPE; | |
1537 | npr->initiatorFunc = 1; | |
1538 | ||
858c9f6c JS |
1539 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1540 | "Issue PRLI: did:x%x", | |
1541 | ndlp->nlp_DID, 0, 0); | |
1542 | ||
dea3101e JB |
1543 | phba->fc_stat.elsXmitPRLI++; |
1544 | elsiocb->iocb_cmpl = lpfc_cmpl_els_prli; | |
2e0fef85 | 1545 | spin_lock_irq(shost->host_lock); |
dea3101e | 1546 | ndlp->nlp_flag |= NLP_PRLI_SND; |
2e0fef85 | 1547 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1548 | if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { |
2e0fef85 | 1549 | spin_lock_irq(shost->host_lock); |
dea3101e | 1550 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 1551 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1552 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1553 | return 1; |
dea3101e | 1554 | } |
2e0fef85 | 1555 | vport->fc_prli_sent++; |
c9f8735b | 1556 | return 0; |
dea3101e JB |
1557 | } |
1558 | ||
90160e01 JS |
1559 | /** |
1560 | * lpfc_rscn_disc: Perform rscn discovery for a vport. | |
1561 | * @vport: pointer to a host virtual N_Port data structure. | |
1562 | * | |
1563 | * This routine performs Registration State Change Notification (RSCN) | |
1564 | * discovery for a @vport. If the @vport's node port recovery count is not | |
1565 | * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all | |
1566 | * the nodes that need recovery. If none of the PLOGI were needed through | |
1567 | * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be | |
1568 | * invoked to check and handle possible more RSCN came in during the period | |
1569 | * of processing the current ones. | |
1570 | **/ | |
1571 | static void | |
1572 | lpfc_rscn_disc(struct lpfc_vport *vport) | |
1573 | { | |
1574 | lpfc_can_disctmo(vport); | |
1575 | ||
1576 | /* RSCN discovery */ | |
1577 | /* go thru NPR nodes and issue ELS PLOGIs */ | |
1578 | if (vport->fc_npr_cnt) | |
1579 | if (lpfc_els_disc_plogi(vport)) | |
1580 | return; | |
1581 | ||
1582 | lpfc_end_rscn(vport); | |
1583 | } | |
1584 | ||
1585 | /** | |
1586 | * lpfc_adisc_done: Complete the adisc phase of discovery. | |
1587 | * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs. | |
1588 | * | |
1589 | * This function is called when the final ADISC is completed during discovery. | |
1590 | * This function handles clearing link attention or issuing reg_vpi depending | |
1591 | * on whether npiv is enabled. This function also kicks off the PLOGI phase of | |
1592 | * discovery. | |
1593 | * This function is called with no locks held. | |
1594 | **/ | |
1595 | static void | |
1596 | lpfc_adisc_done(struct lpfc_vport *vport) | |
1597 | { | |
1598 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
1599 | struct lpfc_hba *phba = vport->phba; | |
1600 | ||
1601 | /* | |
1602 | * For NPIV, cmpl_reg_vpi will set port_state to READY, | |
1603 | * and continue discovery. | |
1604 | */ | |
1605 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
1606 | !(vport->fc_flag & FC_RSCN_MODE)) { | |
1607 | lpfc_issue_reg_vpi(phba, vport); | |
1608 | return; | |
1609 | } | |
1610 | /* | |
1611 | * For SLI2, we need to set port_state to READY | |
1612 | * and continue discovery. | |
1613 | */ | |
1614 | if (vport->port_state < LPFC_VPORT_READY) { | |
1615 | /* If we get here, there is nothing to ADISC */ | |
1616 | if (vport->port_type == LPFC_PHYSICAL_PORT) | |
1617 | lpfc_issue_clear_la(phba, vport); | |
1618 | if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { | |
1619 | vport->num_disc_nodes = 0; | |
1620 | /* go thru NPR list, issue ELS PLOGIs */ | |
1621 | if (vport->fc_npr_cnt) | |
1622 | lpfc_els_disc_plogi(vport); | |
1623 | if (!vport->num_disc_nodes) { | |
1624 | spin_lock_irq(shost->host_lock); | |
1625 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
1626 | spin_unlock_irq(shost->host_lock); | |
1627 | lpfc_can_disctmo(vport); | |
1628 | lpfc_end_rscn(vport); | |
1629 | } | |
1630 | } | |
1631 | vport->port_state = LPFC_VPORT_READY; | |
1632 | } else | |
1633 | lpfc_rscn_disc(vport); | |
1634 | } | |
1635 | ||
e59058c4 JS |
1636 | /** |
1637 | * lpfc_more_adisc: Issue more adisc as needed. | |
1638 | * @vport: pointer to a host virtual N_Port data structure. | |
1639 | * | |
1640 | * This routine determines whether there are more ndlps on a @vport | |
1641 | * node list need to have Address Discover (ADISC) issued. If so, it will | |
1642 | * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's | |
1643 | * remaining nodes which need to have ADISC sent. | |
1644 | **/ | |
0ff10d46 | 1645 | void |
2e0fef85 | 1646 | lpfc_more_adisc(struct lpfc_vport *vport) |
dea3101e JB |
1647 | { |
1648 | int sentadisc; | |
1649 | ||
2e0fef85 JS |
1650 | if (vport->num_disc_nodes) |
1651 | vport->num_disc_nodes--; | |
dea3101e | 1652 | /* Continue discovery with <num_disc_nodes> ADISCs to go */ |
e8b62011 JS |
1653 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
1654 | "0210 Continue discovery with %d ADISCs to go " | |
1655 | "Data: x%x x%x x%x\n", | |
1656 | vport->num_disc_nodes, vport->fc_adisc_cnt, | |
1657 | vport->fc_flag, vport->port_state); | |
dea3101e | 1658 | /* Check to see if there are more ADISCs to be sent */ |
2e0fef85 JS |
1659 | if (vport->fc_flag & FC_NLP_MORE) { |
1660 | lpfc_set_disctmo(vport); | |
1661 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ | |
1662 | sentadisc = lpfc_els_disc_adisc(vport); | |
dea3101e | 1663 | } |
90160e01 JS |
1664 | if (!vport->num_disc_nodes) |
1665 | lpfc_adisc_done(vport); | |
dea3101e JB |
1666 | return; |
1667 | } | |
1668 | ||
e59058c4 JS |
1669 | /** |
1670 | * lpfc_cmpl_els_adisc: Completion callback function for adisc. | |
1671 | * @phba: pointer to lpfc hba data structure. | |
1672 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1673 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1674 | * | |
1675 | * This routine is the completion function for issuing the Address Discover | |
1676 | * (ADISC) command. It first checks to see whether link went down during | |
1677 | * the discovery process. If so, the node will be marked as node port | |
1678 | * recovery for issuing discover IOCB by the link attention handler and | |
1679 | * exit. Otherwise, the response status is checked. If error was reported | |
1680 | * in the response status, the ADISC command shall be retried by invoking | |
1681 | * the lpfc_els_retry() routine. Otherwise, if no error was reported in | |
1682 | * the response status, the state machine is invoked to set transition | |
1683 | * with respect to NLP_EVT_CMPL_ADISC event. | |
1684 | **/ | |
dea3101e | 1685 | static void |
2e0fef85 JS |
1686 | lpfc_cmpl_els_adisc(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; |
dea3101e | 1692 | struct lpfc_nodelist *ndlp; |
2e0fef85 | 1693 | int disc; |
dea3101e JB |
1694 | |
1695 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1696 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1697 | ||
1698 | irsp = &(rspiocb->iocb); | |
1699 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
dea3101e | 1700 | |
858c9f6c JS |
1701 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1702 | "ADISC cmpl: status:x%x/x%x did:x%x", | |
1703 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1704 | ndlp->nlp_DID); | |
1705 | ||
dea3101e JB |
1706 | /* Since ndlp can be freed in the disc state machine, note if this node |
1707 | * is being used during discovery. | |
1708 | */ | |
2e0fef85 | 1709 | spin_lock_irq(shost->host_lock); |
dea3101e | 1710 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
c9f8735b | 1711 | ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC); |
2e0fef85 | 1712 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1713 | /* ADISC completes to NPort <nlp_DID> */ |
e8b62011 JS |
1714 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1715 | "0104 ADISC completes to NPort x%x " | |
1716 | "Data: x%x x%x x%x x%x x%x\n", | |
1717 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1718 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 1719 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
1720 | if (lpfc_els_chk_latt(vport)) { |
1721 | spin_lock_irq(shost->host_lock); | |
dea3101e | 1722 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1723 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1724 | goto out; |
1725 | } | |
1726 | ||
1727 | if (irsp->ulpStatus) { | |
1728 | /* Check for retry */ | |
1729 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1730 | /* ELS command is being retried */ | |
1731 | if (disc) { | |
2e0fef85 | 1732 | spin_lock_irq(shost->host_lock); |
dea3101e | 1733 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 JS |
1734 | spin_unlock_irq(shost->host_lock); |
1735 | lpfc_set_disctmo(vport); | |
dea3101e JB |
1736 | } |
1737 | goto out; | |
1738 | } | |
1739 | /* ADISC failed */ | |
1740 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ | |
e47c9093 | 1741 | if (!lpfc_error_lost_link(irsp)) |
2e0fef85 | 1742 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
858c9f6c | 1743 | NLP_EVT_CMPL_ADISC); |
e47c9093 | 1744 | } else |
dea3101e | 1745 | /* Good status, call state machine */ |
2e0fef85 | 1746 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
dea3101e | 1747 | NLP_EVT_CMPL_ADISC); |
dea3101e | 1748 | |
90160e01 JS |
1749 | /* Check to see if there are more ADISCs to be sent */ |
1750 | if (disc && vport->num_disc_nodes) | |
2e0fef85 | 1751 | lpfc_more_adisc(vport); |
dea3101e JB |
1752 | out: |
1753 | lpfc_els_free_iocb(phba, cmdiocb); | |
1754 | return; | |
1755 | } | |
1756 | ||
e59058c4 JS |
1757 | /** |
1758 | * lpfc_issue_els_adisc: Issue an address discover iocb to an node on a vport. | |
1759 | * @vport: pointer to a virtual N_Port data structure. | |
1760 | * @ndlp: pointer to a node-list data structure. | |
1761 | * @retry: number of retries to the command IOCB. | |
1762 | * | |
1763 | * This routine issues an Address Discover (ADISC) for an @ndlp on a | |
1764 | * @vport. It prepares the payload of the ADISC ELS command, updates the | |
1765 | * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine | |
1766 | * to issue the ADISC ELS command. | |
1767 | * | |
1768 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1769 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1770 | * will be stored into the context1 field of the IOCB for the completion | |
1771 | * callback function to the ADISC ELS command. | |
1772 | * | |
1773 | * Return code | |
1774 | * 0 - successfully issued adisc | |
1775 | * 1 - failed to issue adisc | |
1776 | **/ | |
dea3101e | 1777 | int |
2e0fef85 | 1778 | lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
1779 | uint8_t retry) |
1780 | { | |
2e0fef85 JS |
1781 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
1782 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
1783 | ADISC *ap; |
1784 | IOCB_t *icmd; | |
1785 | struct lpfc_iocbq *elsiocb; | |
2e0fef85 JS |
1786 | struct lpfc_sli *psli = &phba->sli; |
1787 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; | |
dea3101e JB |
1788 | uint8_t *pcmd; |
1789 | uint16_t cmdsize; | |
1790 | ||
92d7f7b0 | 1791 | cmdsize = (sizeof(uint32_t) + sizeof(ADISC)); |
2e0fef85 JS |
1792 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1793 | ndlp->nlp_DID, ELS_CMD_ADISC); | |
488d1469 | 1794 | if (!elsiocb) |
c9f8735b | 1795 | return 1; |
dea3101e JB |
1796 | |
1797 | icmd = &elsiocb->iocb; | |
1798 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1799 | ||
1800 | /* For ADISC request, remainder of payload is service parameters */ | |
1801 | *((uint32_t *) (pcmd)) = ELS_CMD_ADISC; | |
92d7f7b0 | 1802 | pcmd += sizeof(uint32_t); |
dea3101e JB |
1803 | |
1804 | /* Fill in ADISC payload */ | |
1805 | ap = (ADISC *) pcmd; | |
1806 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
1807 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
1808 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 1809 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 1810 | |
858c9f6c JS |
1811 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1812 | "Issue ADISC: did:x%x", | |
1813 | ndlp->nlp_DID, 0, 0); | |
1814 | ||
dea3101e JB |
1815 | phba->fc_stat.elsXmitADISC++; |
1816 | elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc; | |
2e0fef85 | 1817 | spin_lock_irq(shost->host_lock); |
dea3101e | 1818 | ndlp->nlp_flag |= NLP_ADISC_SND; |
2e0fef85 | 1819 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1820 | if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { |
2e0fef85 | 1821 | spin_lock_irq(shost->host_lock); |
dea3101e | 1822 | ndlp->nlp_flag &= ~NLP_ADISC_SND; |
2e0fef85 | 1823 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1824 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1825 | return 1; |
dea3101e | 1826 | } |
c9f8735b | 1827 | return 0; |
dea3101e JB |
1828 | } |
1829 | ||
e59058c4 JS |
1830 | /** |
1831 | * lpfc_cmpl_els_logo: Completion callback function for logo. | |
1832 | * @phba: pointer to lpfc hba data structure. | |
1833 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1834 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1835 | * | |
1836 | * This routine is the completion function for issuing the ELS Logout (LOGO) | |
1837 | * command. If no error status was reported from the LOGO response, the | |
1838 | * state machine of the associated ndlp shall be invoked for transition with | |
1839 | * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported, | |
1840 | * the lpfc_els_retry() routine will be invoked to retry the LOGO command. | |
1841 | **/ | |
dea3101e | 1842 | static void |
2e0fef85 JS |
1843 | lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1844 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1845 | { |
2e0fef85 JS |
1846 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
1847 | struct lpfc_vport *vport = ndlp->vport; | |
1848 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
1849 | IOCB_t *irsp; |
1850 | struct lpfc_sli *psli; | |
dea3101e JB |
1851 | |
1852 | psli = &phba->sli; | |
1853 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1854 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1855 | ||
1856 | irsp = &(rspiocb->iocb); | |
2e0fef85 | 1857 | spin_lock_irq(shost->host_lock); |
dea3101e | 1858 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 1859 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1860 | |
858c9f6c JS |
1861 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1862 | "LOGO cmpl: status:x%x/x%x did:x%x", | |
1863 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1864 | ndlp->nlp_DID); | |
dea3101e | 1865 | /* LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
1866 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1867 | "0105 LOGO completes to NPort x%x " | |
1868 | "Data: x%x x%x x%x x%x\n", | |
1869 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1870 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 1871 | /* Check to see if link went down during discovery */ |
2e0fef85 | 1872 | if (lpfc_els_chk_latt(vport)) |
dea3101e JB |
1873 | goto out; |
1874 | ||
92d7f7b0 JS |
1875 | if (ndlp->nlp_flag & NLP_TARGET_REMOVE) { |
1876 | /* NLP_EVT_DEVICE_RM should unregister the RPI | |
1877 | * which should abort all outstanding IOs. | |
1878 | */ | |
1879 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, | |
1880 | NLP_EVT_DEVICE_RM); | |
1881 | goto out; | |
1882 | } | |
1883 | ||
dea3101e JB |
1884 | if (irsp->ulpStatus) { |
1885 | /* Check for retry */ | |
2e0fef85 | 1886 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e JB |
1887 | /* ELS command is being retried */ |
1888 | goto out; | |
dea3101e JB |
1889 | /* LOGO failed */ |
1890 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ | |
858c9f6c | 1891 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 1892 | goto out; |
858c9f6c | 1893 | else |
2e0fef85 | 1894 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1895 | NLP_EVT_CMPL_LOGO); |
e47c9093 | 1896 | } else |
5024ab17 JW |
1897 | /* Good status, call state machine. |
1898 | * This will unregister the rpi if needed. | |
1899 | */ | |
2e0fef85 | 1900 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1901 | NLP_EVT_CMPL_LOGO); |
dea3101e JB |
1902 | out: |
1903 | lpfc_els_free_iocb(phba, cmdiocb); | |
1904 | return; | |
1905 | } | |
1906 | ||
e59058c4 JS |
1907 | /** |
1908 | * lpfc_issue_els_logo: Issue a logo to an node on a vport. | |
1909 | * @vport: pointer to a virtual N_Port data structure. | |
1910 | * @ndlp: pointer to a node-list data structure. | |
1911 | * @retry: number of retries to the command IOCB. | |
1912 | * | |
1913 | * This routine constructs and issues an ELS Logout (LOGO) iocb command | |
1914 | * to a remote node, referred by an @ndlp on a @vport. It constructs the | |
1915 | * payload of the IOCB, properly sets up the @ndlp state, and invokes the | |
1916 | * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command. | |
1917 | * | |
1918 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1919 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1920 | * will be stored into the context1 field of the IOCB for the completion | |
1921 | * callback function to the LOGO ELS command. | |
1922 | * | |
1923 | * Return code | |
1924 | * 0 - successfully issued logo | |
1925 | * 1 - failed to issue logo | |
1926 | **/ | |
dea3101e | 1927 | int |
2e0fef85 | 1928 | lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
1929 | uint8_t retry) |
1930 | { | |
2e0fef85 JS |
1931 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
1932 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
1933 | IOCB_t *icmd; |
1934 | struct lpfc_iocbq *elsiocb; | |
1935 | struct lpfc_sli_ring *pring; | |
1936 | struct lpfc_sli *psli; | |
1937 | uint8_t *pcmd; | |
1938 | uint16_t cmdsize; | |
92d7f7b0 | 1939 | int rc; |
dea3101e JB |
1940 | |
1941 | psli = &phba->sli; | |
1942 | pring = &psli->ring[LPFC_ELS_RING]; | |
1943 | ||
98c9ea5c JS |
1944 | spin_lock_irq(shost->host_lock); |
1945 | if (ndlp->nlp_flag & NLP_LOGO_SND) { | |
1946 | spin_unlock_irq(shost->host_lock); | |
1947 | return 0; | |
1948 | } | |
1949 | spin_unlock_irq(shost->host_lock); | |
1950 | ||
92d7f7b0 | 1951 | cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name); |
2e0fef85 JS |
1952 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1953 | ndlp->nlp_DID, ELS_CMD_LOGO); | |
488d1469 | 1954 | if (!elsiocb) |
c9f8735b | 1955 | return 1; |
dea3101e JB |
1956 | |
1957 | icmd = &elsiocb->iocb; | |
1958 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1959 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
92d7f7b0 | 1960 | pcmd += sizeof(uint32_t); |
dea3101e JB |
1961 | |
1962 | /* Fill in LOGO payload */ | |
2e0fef85 | 1963 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); |
92d7f7b0 JS |
1964 | pcmd += sizeof(uint32_t); |
1965 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
dea3101e | 1966 | |
858c9f6c JS |
1967 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1968 | "Issue LOGO: did:x%x", | |
1969 | ndlp->nlp_DID, 0, 0); | |
1970 | ||
dea3101e JB |
1971 | phba->fc_stat.elsXmitLOGO++; |
1972 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo; | |
2e0fef85 | 1973 | spin_lock_irq(shost->host_lock); |
dea3101e | 1974 | ndlp->nlp_flag |= NLP_LOGO_SND; |
2e0fef85 | 1975 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 JS |
1976 | rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); |
1977 | ||
1978 | if (rc == IOCB_ERROR) { | |
2e0fef85 | 1979 | spin_lock_irq(shost->host_lock); |
dea3101e | 1980 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 1981 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1982 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1983 | return 1; |
dea3101e | 1984 | } |
c9f8735b | 1985 | return 0; |
dea3101e JB |
1986 | } |
1987 | ||
e59058c4 JS |
1988 | /** |
1989 | * lpfc_cmpl_els_cmd: Completion callback function for generic els command. | |
1990 | * @phba: pointer to lpfc hba data structure. | |
1991 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1992 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1993 | * | |
1994 | * This routine is a generic completion callback function for ELS commands. | |
1995 | * Specifically, it is the callback function which does not need to perform | |
1996 | * any command specific operations. It is currently used by the ELS command | |
1997 | * issuing routines for the ELS State Change Request (SCR), | |
1998 | * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution | |
1999 | * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than | |
2000 | * certain debug loggings, this callback function simply invokes the | |
2001 | * lpfc_els_chk_latt() routine to check whether link went down during the | |
2002 | * discovery process. | |
2003 | **/ | |
dea3101e | 2004 | static void |
2e0fef85 JS |
2005 | lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2006 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2007 | { |
2e0fef85 | 2008 | struct lpfc_vport *vport = cmdiocb->vport; |
dea3101e JB |
2009 | IOCB_t *irsp; |
2010 | ||
2011 | irsp = &rspiocb->iocb; | |
2012 | ||
858c9f6c JS |
2013 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2014 | "ELS cmd cmpl: status:x%x/x%x did:x%x", | |
2015 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2016 | irsp->un.elsreq64.remoteID); | |
dea3101e | 2017 | /* ELS cmd tag <ulpIoTag> completes */ |
e8b62011 JS |
2018 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2019 | "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n", | |
2020 | irsp->ulpIoTag, irsp->ulpStatus, | |
2021 | irsp->un.ulpWord[4], irsp->ulpTimeout); | |
dea3101e | 2022 | /* Check to see if link went down during discovery */ |
2e0fef85 | 2023 | lpfc_els_chk_latt(vport); |
dea3101e JB |
2024 | lpfc_els_free_iocb(phba, cmdiocb); |
2025 | return; | |
2026 | } | |
2027 | ||
e59058c4 JS |
2028 | /** |
2029 | * lpfc_issue_els_scr: Issue a scr to an node on a vport. | |
2030 | * @vport: pointer to a host virtual N_Port data structure. | |
2031 | * @nportid: N_Port identifier to the remote node. | |
2032 | * @retry: number of retries to the command IOCB. | |
2033 | * | |
2034 | * This routine issues a State Change Request (SCR) to a fabric node | |
2035 | * on a @vport. The remote node @nportid is passed into the function. It | |
2036 | * first search the @vport node list to find the matching ndlp. If no such | |
2037 | * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An | |
2038 | * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb() | |
2039 | * routine is invoked to send the SCR IOCB. | |
2040 | * | |
2041 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2042 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2043 | * will be stored into the context1 field of the IOCB for the completion | |
2044 | * callback function to the SCR ELS command. | |
2045 | * | |
2046 | * Return code | |
2047 | * 0 - Successfully issued scr command | |
2048 | * 1 - Failed to issue scr command | |
2049 | **/ | |
dea3101e | 2050 | int |
2e0fef85 | 2051 | lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2052 | { |
2e0fef85 | 2053 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
2054 | IOCB_t *icmd; |
2055 | struct lpfc_iocbq *elsiocb; | |
2056 | struct lpfc_sli_ring *pring; | |
2057 | struct lpfc_sli *psli; | |
2058 | uint8_t *pcmd; | |
2059 | uint16_t cmdsize; | |
2060 | struct lpfc_nodelist *ndlp; | |
2061 | ||
2062 | psli = &phba->sli; | |
2063 | pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ | |
92d7f7b0 | 2064 | cmdsize = (sizeof(uint32_t) + sizeof(SCR)); |
dea3101e | 2065 | |
e47c9093 JS |
2066 | ndlp = lpfc_findnode_did(vport, nportid); |
2067 | if (!ndlp) { | |
2068 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2069 | if (!ndlp) | |
2070 | return 1; | |
2071 | lpfc_nlp_init(vport, ndlp, nportid); | |
2072 | lpfc_enqueue_node(vport, ndlp); | |
2073 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2074 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2075 | if (!ndlp) | |
2076 | return 1; | |
2077 | } | |
2e0fef85 JS |
2078 | |
2079 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2080 | ndlp->nlp_DID, ELS_CMD_SCR); | |
dea3101e | 2081 | |
488d1469 | 2082 | if (!elsiocb) { |
fa4066b6 JS |
2083 | /* This will trigger the release of the node just |
2084 | * allocated | |
2085 | */ | |
329f9bc7 | 2086 | lpfc_nlp_put(ndlp); |
c9f8735b | 2087 | return 1; |
dea3101e JB |
2088 | } |
2089 | ||
2090 | icmd = &elsiocb->iocb; | |
2091 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2092 | ||
2093 | *((uint32_t *) (pcmd)) = ELS_CMD_SCR; | |
92d7f7b0 | 2094 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2095 | |
2096 | /* For SCR, remainder of payload is SCR parameter page */ | |
92d7f7b0 | 2097 | memset(pcmd, 0, sizeof(SCR)); |
dea3101e JB |
2098 | ((SCR *) pcmd)->Function = SCR_FUNC_FULL; |
2099 | ||
858c9f6c JS |
2100 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2101 | "Issue SCR: did:x%x", | |
2102 | ndlp->nlp_DID, 0, 0); | |
2103 | ||
dea3101e JB |
2104 | phba->fc_stat.elsXmitSCR++; |
2105 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
dea3101e | 2106 | if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { |
fa4066b6 JS |
2107 | /* The additional lpfc_nlp_put will cause the following |
2108 | * lpfc_els_free_iocb routine to trigger the rlease of | |
2109 | * the node. | |
2110 | */ | |
329f9bc7 | 2111 | lpfc_nlp_put(ndlp); |
dea3101e | 2112 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2113 | return 1; |
dea3101e | 2114 | } |
fa4066b6 JS |
2115 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2116 | * trigger the release of node. | |
2117 | */ | |
329f9bc7 | 2118 | lpfc_nlp_put(ndlp); |
c9f8735b | 2119 | return 0; |
dea3101e JB |
2120 | } |
2121 | ||
e59058c4 JS |
2122 | /** |
2123 | * lpfc_issue_els_farpr: Issue a farp to an node on a vport. | |
2124 | * @vport: pointer to a host virtual N_Port data structure. | |
2125 | * @nportid: N_Port identifier to the remote node. | |
2126 | * @retry: number of retries to the command IOCB. | |
2127 | * | |
2128 | * This routine issues a Fibre Channel Address Resolution Response | |
2129 | * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid) | |
2130 | * is passed into the function. It first search the @vport node list to find | |
2131 | * the matching ndlp. If no such ndlp is found, a new ndlp shall be created | |
2132 | * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the | |
2133 | * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command. | |
2134 | * | |
2135 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2136 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2137 | * will be stored into the context1 field of the IOCB for the completion | |
2138 | * callback function to the PARPR ELS command. | |
2139 | * | |
2140 | * Return code | |
2141 | * 0 - Successfully issued farpr command | |
2142 | * 1 - Failed to issue farpr command | |
2143 | **/ | |
dea3101e | 2144 | static int |
2e0fef85 | 2145 | lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2146 | { |
2e0fef85 | 2147 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
2148 | IOCB_t *icmd; |
2149 | struct lpfc_iocbq *elsiocb; | |
2150 | struct lpfc_sli_ring *pring; | |
2151 | struct lpfc_sli *psli; | |
2152 | FARP *fp; | |
2153 | uint8_t *pcmd; | |
2154 | uint32_t *lp; | |
2155 | uint16_t cmdsize; | |
2156 | struct lpfc_nodelist *ondlp; | |
2157 | struct lpfc_nodelist *ndlp; | |
2158 | ||
2159 | psli = &phba->sli; | |
2160 | pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ | |
92d7f7b0 | 2161 | cmdsize = (sizeof(uint32_t) + sizeof(FARP)); |
dea3101e | 2162 | |
e47c9093 JS |
2163 | ndlp = lpfc_findnode_did(vport, nportid); |
2164 | if (!ndlp) { | |
2165 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2166 | if (!ndlp) | |
2167 | return 1; | |
2168 | lpfc_nlp_init(vport, ndlp, nportid); | |
2169 | lpfc_enqueue_node(vport, ndlp); | |
2170 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2171 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2172 | if (!ndlp) | |
2173 | return 1; | |
2174 | } | |
2e0fef85 JS |
2175 | |
2176 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2177 | ndlp->nlp_DID, ELS_CMD_RNID); | |
488d1469 | 2178 | if (!elsiocb) { |
fa4066b6 JS |
2179 | /* This will trigger the release of the node just |
2180 | * allocated | |
2181 | */ | |
329f9bc7 | 2182 | lpfc_nlp_put(ndlp); |
c9f8735b | 2183 | return 1; |
dea3101e JB |
2184 | } |
2185 | ||
2186 | icmd = &elsiocb->iocb; | |
2187 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2188 | ||
2189 | *((uint32_t *) (pcmd)) = ELS_CMD_FARPR; | |
92d7f7b0 | 2190 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2191 | |
2192 | /* Fill in FARPR payload */ | |
2193 | fp = (FARP *) (pcmd); | |
92d7f7b0 | 2194 | memset(fp, 0, sizeof(FARP)); |
dea3101e JB |
2195 | lp = (uint32_t *) pcmd; |
2196 | *lp++ = be32_to_cpu(nportid); | |
2e0fef85 | 2197 | *lp++ = be32_to_cpu(vport->fc_myDID); |
dea3101e JB |
2198 | fp->Rflags = 0; |
2199 | fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); | |
2200 | ||
92d7f7b0 JS |
2201 | memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2202 | memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2203 | ondlp = lpfc_findnode_did(vport, nportid); |
e47c9093 | 2204 | if (ondlp && NLP_CHK_NODE_ACT(ondlp)) { |
dea3101e | 2205 | memcpy(&fp->OportName, &ondlp->nlp_portname, |
92d7f7b0 | 2206 | sizeof(struct lpfc_name)); |
dea3101e | 2207 | memcpy(&fp->OnodeName, &ondlp->nlp_nodename, |
92d7f7b0 | 2208 | sizeof(struct lpfc_name)); |
dea3101e JB |
2209 | } |
2210 | ||
858c9f6c JS |
2211 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2212 | "Issue FARPR: did:x%x", | |
2213 | ndlp->nlp_DID, 0, 0); | |
2214 | ||
dea3101e JB |
2215 | phba->fc_stat.elsXmitFARPR++; |
2216 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
dea3101e | 2217 | if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { |
fa4066b6 JS |
2218 | /* The additional lpfc_nlp_put will cause the following |
2219 | * lpfc_els_free_iocb routine to trigger the release of | |
2220 | * the node. | |
2221 | */ | |
329f9bc7 | 2222 | lpfc_nlp_put(ndlp); |
dea3101e | 2223 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2224 | return 1; |
dea3101e | 2225 | } |
fa4066b6 JS |
2226 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2227 | * trigger the release of the node. | |
2228 | */ | |
329f9bc7 | 2229 | lpfc_nlp_put(ndlp); |
c9f8735b | 2230 | return 0; |
dea3101e JB |
2231 | } |
2232 | ||
e59058c4 JS |
2233 | /** |
2234 | * lpfc_cancel_retry_delay_tmo: Cancel the timer with delayed iocb-cmd retry. | |
2235 | * @vport: pointer to a host virtual N_Port data structure. | |
2236 | * @nlp: pointer to a node-list data structure. | |
2237 | * | |
2238 | * This routine cancels the timer with a delayed IOCB-command retry for | |
2239 | * a @vport's @ndlp. It stops the timer for the delayed function retrial and | |
2240 | * removes the ELS retry event if it presents. In addition, if the | |
2241 | * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB | |
2242 | * commands are sent for the @vport's nodes that require issuing discovery | |
2243 | * ADISC. | |
2244 | **/ | |
fdcebe28 | 2245 | void |
2e0fef85 | 2246 | lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) |
fdcebe28 | 2247 | { |
2e0fef85 | 2248 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
e47c9093 | 2249 | struct lpfc_work_evt *evtp; |
2e0fef85 | 2250 | |
0d2b6b83 JS |
2251 | if (!(nlp->nlp_flag & NLP_DELAY_TMO)) |
2252 | return; | |
2e0fef85 | 2253 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2254 | nlp->nlp_flag &= ~NLP_DELAY_TMO; |
2e0fef85 | 2255 | spin_unlock_irq(shost->host_lock); |
fdcebe28 JS |
2256 | del_timer_sync(&nlp->nlp_delayfunc); |
2257 | nlp->nlp_last_elscmd = 0; | |
e47c9093 | 2258 | if (!list_empty(&nlp->els_retry_evt.evt_listp)) { |
fdcebe28 | 2259 | list_del_init(&nlp->els_retry_evt.evt_listp); |
e47c9093 JS |
2260 | /* Decrement nlp reference count held for the delayed retry */ |
2261 | evtp = &nlp->els_retry_evt; | |
2262 | lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1); | |
2263 | } | |
fdcebe28 | 2264 | if (nlp->nlp_flag & NLP_NPR_2B_DISC) { |
2e0fef85 | 2265 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2266 | nlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 JS |
2267 | spin_unlock_irq(shost->host_lock); |
2268 | if (vport->num_disc_nodes) { | |
0d2b6b83 JS |
2269 | if (vport->port_state < LPFC_VPORT_READY) { |
2270 | /* Check if there are more ADISCs to be sent */ | |
2271 | lpfc_more_adisc(vport); | |
0d2b6b83 JS |
2272 | } else { |
2273 | /* Check if there are more PLOGIs to be sent */ | |
2274 | lpfc_more_plogi(vport); | |
90160e01 JS |
2275 | if (vport->num_disc_nodes == 0) { |
2276 | spin_lock_irq(shost->host_lock); | |
2277 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
2278 | spin_unlock_irq(shost->host_lock); | |
2279 | lpfc_can_disctmo(vport); | |
2280 | lpfc_end_rscn(vport); | |
2281 | } | |
fdcebe28 JS |
2282 | } |
2283 | } | |
2284 | } | |
2285 | return; | |
2286 | } | |
2287 | ||
e59058c4 JS |
2288 | /** |
2289 | * lpfc_els_retry_delay: Timer function with a ndlp delayed function timer. | |
2290 | * @ptr: holder for the pointer to the timer function associated data (ndlp). | |
2291 | * | |
2292 | * This routine is invoked by the ndlp delayed-function timer to check | |
2293 | * whether there is any pending ELS retry event(s) with the node. If not, it | |
2294 | * simply returns. Otherwise, if there is at least one ELS delayed event, it | |
2295 | * adds the delayed events to the HBA work list and invokes the | |
2296 | * lpfc_worker_wake_up() routine to wake up worker thread to process the | |
2297 | * event. Note that lpfc_nlp_get() is called before posting the event to | |
2298 | * the work list to hold reference count of ndlp so that it guarantees the | |
2299 | * reference to ndlp will still be available when the worker thread gets | |
2300 | * to the event associated with the ndlp. | |
2301 | **/ | |
dea3101e JB |
2302 | void |
2303 | lpfc_els_retry_delay(unsigned long ptr) | |
2304 | { | |
2e0fef85 JS |
2305 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr; |
2306 | struct lpfc_vport *vport = ndlp->vport; | |
2e0fef85 | 2307 | struct lpfc_hba *phba = vport->phba; |
92d7f7b0 | 2308 | unsigned long flags; |
2e0fef85 | 2309 | struct lpfc_work_evt *evtp = &ndlp->els_retry_evt; |
dea3101e | 2310 | |
92d7f7b0 | 2311 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e | 2312 | if (!list_empty(&evtp->evt_listp)) { |
92d7f7b0 | 2313 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e JB |
2314 | return; |
2315 | } | |
2316 | ||
fa4066b6 JS |
2317 | /* We need to hold the node by incrementing the reference |
2318 | * count until the queued work is done | |
2319 | */ | |
2320 | evtp->evt_arg1 = lpfc_nlp_get(ndlp); | |
5e9d9b82 JS |
2321 | if (evtp->evt_arg1) { |
2322 | evtp->evt = LPFC_EVT_ELS_RETRY; | |
2323 | list_add_tail(&evtp->evt_listp, &phba->work_list); | |
92d7f7b0 | 2324 | lpfc_worker_wake_up(phba); |
5e9d9b82 | 2325 | } |
92d7f7b0 | 2326 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e JB |
2327 | return; |
2328 | } | |
2329 | ||
e59058c4 JS |
2330 | /** |
2331 | * lpfc_els_retry_delay_handler: Work thread handler for ndlp delayed function. | |
2332 | * @ndlp: pointer to a node-list data structure. | |
2333 | * | |
2334 | * This routine is the worker-thread handler for processing the @ndlp delayed | |
2335 | * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves | |
2336 | * the last ELS command from the associated ndlp and invokes the proper ELS | |
2337 | * function according to the delayed ELS command to retry the command. | |
2338 | **/ | |
dea3101e JB |
2339 | void |
2340 | lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) | |
2341 | { | |
2e0fef85 JS |
2342 | struct lpfc_vport *vport = ndlp->vport; |
2343 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2344 | uint32_t cmd, did, retry; | |
dea3101e | 2345 | |
2e0fef85 | 2346 | spin_lock_irq(shost->host_lock); |
5024ab17 JW |
2347 | did = ndlp->nlp_DID; |
2348 | cmd = ndlp->nlp_last_elscmd; | |
2349 | ndlp->nlp_last_elscmd = 0; | |
dea3101e JB |
2350 | |
2351 | if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { | |
2e0fef85 | 2352 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
2353 | return; |
2354 | } | |
2355 | ||
2356 | ndlp->nlp_flag &= ~NLP_DELAY_TMO; | |
2e0fef85 | 2357 | spin_unlock_irq(shost->host_lock); |
1a169689 JS |
2358 | /* |
2359 | * If a discovery event readded nlp_delayfunc after timer | |
2360 | * firing and before processing the timer, cancel the | |
2361 | * nlp_delayfunc. | |
2362 | */ | |
2363 | del_timer_sync(&ndlp->nlp_delayfunc); | |
dea3101e JB |
2364 | retry = ndlp->nlp_retry; |
2365 | ||
2366 | switch (cmd) { | |
2367 | case ELS_CMD_FLOGI: | |
2e0fef85 | 2368 | lpfc_issue_els_flogi(vport, ndlp, retry); |
dea3101e JB |
2369 | break; |
2370 | case ELS_CMD_PLOGI: | |
2e0fef85 | 2371 | if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) { |
5024ab17 | 2372 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2373 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
6ad42535 | 2374 | } |
dea3101e JB |
2375 | break; |
2376 | case ELS_CMD_ADISC: | |
2e0fef85 | 2377 | if (!lpfc_issue_els_adisc(vport, ndlp, retry)) { |
5024ab17 | 2378 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2379 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
6ad42535 | 2380 | } |
dea3101e JB |
2381 | break; |
2382 | case ELS_CMD_PRLI: | |
2e0fef85 | 2383 | if (!lpfc_issue_els_prli(vport, ndlp, retry)) { |
5024ab17 | 2384 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2385 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
6ad42535 | 2386 | } |
dea3101e JB |
2387 | break; |
2388 | case ELS_CMD_LOGO: | |
2e0fef85 | 2389 | if (!lpfc_issue_els_logo(vport, ndlp, retry)) { |
5024ab17 | 2390 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2391 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
6ad42535 | 2392 | } |
dea3101e | 2393 | break; |
92d7f7b0 JS |
2394 | case ELS_CMD_FDISC: |
2395 | lpfc_issue_els_fdisc(vport, ndlp, retry); | |
2396 | break; | |
dea3101e JB |
2397 | } |
2398 | return; | |
2399 | } | |
2400 | ||
e59058c4 JS |
2401 | /** |
2402 | * lpfc_els_retry: Make retry decision on an els command iocb. | |
2403 | * @phba: pointer to lpfc hba data structure. | |
2404 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2405 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2406 | * | |
2407 | * This routine makes a retry decision on an ELS command IOCB, which has | |
2408 | * failed. The following ELS IOCBs use this function for retrying the command | |
2409 | * when previously issued command responsed with error status: FLOGI, PLOGI, | |
2410 | * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the | |
2411 | * returned error status, it makes the decision whether a retry shall be | |
2412 | * issued for the command, and whether a retry shall be made immediately or | |
2413 | * delayed. In the former case, the corresponding ELS command issuing-function | |
2414 | * is called to retry the command. In the later case, the ELS command shall | |
2415 | * be posted to the ndlp delayed event and delayed function timer set to the | |
2416 | * ndlp for the delayed command issusing. | |
2417 | * | |
2418 | * Return code | |
2419 | * 0 - No retry of els command is made | |
2420 | * 1 - Immediate or delayed retry of els command is made | |
2421 | **/ | |
dea3101e | 2422 | static int |
2e0fef85 JS |
2423 | lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2424 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2425 | { |
2e0fef85 JS |
2426 | struct lpfc_vport *vport = cmdiocb->vport; |
2427 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2428 | IOCB_t *irsp = &rspiocb->iocb; | |
2429 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2430 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
dea3101e JB |
2431 | uint32_t *elscmd; |
2432 | struct ls_rjt stat; | |
2e0fef85 | 2433 | int retry = 0, maxretry = lpfc_max_els_tries, delay = 0; |
98c9ea5c | 2434 | int logerr = 0; |
2e0fef85 | 2435 | uint32_t cmd = 0; |
488d1469 | 2436 | uint32_t did; |
dea3101e | 2437 | |
488d1469 | 2438 | |
dea3101e JB |
2439 | /* Note: context2 may be 0 for internal driver abort |
2440 | * of delays ELS command. | |
2441 | */ | |
2442 | ||
2443 | if (pcmd && pcmd->virt) { | |
2444 | elscmd = (uint32_t *) (pcmd->virt); | |
2445 | cmd = *elscmd++; | |
2446 | } | |
2447 | ||
e47c9093 | 2448 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
488d1469 JS |
2449 | did = ndlp->nlp_DID; |
2450 | else { | |
2451 | /* We should only hit this case for retrying PLOGI */ | |
2452 | did = irsp->un.elsreq64.remoteID; | |
2e0fef85 | 2453 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
2454 | if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp)) |
2455 | && (cmd != ELS_CMD_PLOGI)) | |
488d1469 JS |
2456 | return 1; |
2457 | } | |
2458 | ||
858c9f6c JS |
2459 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2460 | "Retry ELS: wd7:x%x wd4:x%x did:x%x", | |
2461 | *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID); | |
2462 | ||
dea3101e JB |
2463 | switch (irsp->ulpStatus) { |
2464 | case IOSTAT_FCP_RSP_ERROR: | |
2465 | case IOSTAT_REMOTE_STOP: | |
2466 | break; | |
2467 | ||
2468 | case IOSTAT_LOCAL_REJECT: | |
2469 | switch ((irsp->un.ulpWord[4] & 0xff)) { | |
2470 | case IOERR_LOOP_OPEN_FAILURE: | |
2e0fef85 | 2471 | if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0) |
92d7f7b0 | 2472 | delay = 1000; |
dea3101e JB |
2473 | retry = 1; |
2474 | break; | |
2475 | ||
92d7f7b0 | 2476 | case IOERR_ILLEGAL_COMMAND: |
7f5f3d0d JS |
2477 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2478 | "0124 Retry illegal cmd x%x " | |
2479 | "retry:x%x delay:x%x\n", | |
2480 | cmd, cmdiocb->retry, delay); | |
2481 | retry = 1; | |
2482 | /* All command's retry policy */ | |
2483 | maxretry = 8; | |
2484 | if (cmdiocb->retry > 2) | |
2485 | delay = 1000; | |
92d7f7b0 JS |
2486 | break; |
2487 | ||
dea3101e | 2488 | case IOERR_NO_RESOURCES: |
98c9ea5c | 2489 | logerr = 1; /* HBA out of resources */ |
858c9f6c JS |
2490 | retry = 1; |
2491 | if (cmdiocb->retry > 100) | |
2492 | delay = 100; | |
2493 | maxretry = 250; | |
2494 | break; | |
2495 | ||
2496 | case IOERR_ILLEGAL_FRAME: | |
92d7f7b0 | 2497 | delay = 100; |
dea3101e JB |
2498 | retry = 1; |
2499 | break; | |
2500 | ||
858c9f6c | 2501 | case IOERR_SEQUENCE_TIMEOUT: |
dea3101e JB |
2502 | case IOERR_INVALID_RPI: |
2503 | retry = 1; | |
2504 | break; | |
2505 | } | |
2506 | break; | |
2507 | ||
2508 | case IOSTAT_NPORT_RJT: | |
2509 | case IOSTAT_FABRIC_RJT: | |
2510 | if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
2511 | retry = 1; | |
2512 | break; | |
2513 | } | |
2514 | break; | |
2515 | ||
2516 | case IOSTAT_NPORT_BSY: | |
2517 | case IOSTAT_FABRIC_BSY: | |
98c9ea5c | 2518 | logerr = 1; /* Fabric / Remote NPort out of resources */ |
dea3101e JB |
2519 | retry = 1; |
2520 | break; | |
2521 | ||
2522 | case IOSTAT_LS_RJT: | |
2523 | stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]); | |
2524 | /* Added for Vendor specifc support | |
2525 | * Just keep retrying for these Rsn / Exp codes | |
2526 | */ | |
2527 | switch (stat.un.b.lsRjtRsnCode) { | |
2528 | case LSRJT_UNABLE_TPC: | |
2529 | if (stat.un.b.lsRjtRsnCodeExp == | |
2530 | LSEXP_CMD_IN_PROGRESS) { | |
2531 | if (cmd == ELS_CMD_PLOGI) { | |
92d7f7b0 | 2532 | delay = 1000; |
dea3101e JB |
2533 | maxretry = 48; |
2534 | } | |
2535 | retry = 1; | |
2536 | break; | |
2537 | } | |
2538 | if (cmd == ELS_CMD_PLOGI) { | |
92d7f7b0 | 2539 | delay = 1000; |
dea3101e JB |
2540 | maxretry = lpfc_max_els_tries + 1; |
2541 | retry = 1; | |
2542 | break; | |
2543 | } | |
92d7f7b0 JS |
2544 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
2545 | (cmd == ELS_CMD_FDISC) && | |
2546 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){ | |
e8b62011 JS |
2547 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2548 | "0125 FDISC Failed (x%x). " | |
2549 | "Fabric out of resources\n", | |
2550 | stat.un.lsRjtError); | |
92d7f7b0 JS |
2551 | lpfc_vport_set_state(vport, |
2552 | FC_VPORT_NO_FABRIC_RSCS); | |
2553 | } | |
dea3101e JB |
2554 | break; |
2555 | ||
2556 | case LSRJT_LOGICAL_BSY: | |
858c9f6c JS |
2557 | if ((cmd == ELS_CMD_PLOGI) || |
2558 | (cmd == ELS_CMD_PRLI)) { | |
92d7f7b0 | 2559 | delay = 1000; |
dea3101e | 2560 | maxretry = 48; |
92d7f7b0 | 2561 | } else if (cmd == ELS_CMD_FDISC) { |
51ef4c26 JS |
2562 | /* FDISC retry policy */ |
2563 | maxretry = 48; | |
2564 | if (cmdiocb->retry >= 32) | |
2565 | delay = 1000; | |
dea3101e JB |
2566 | } |
2567 | retry = 1; | |
2568 | break; | |
92d7f7b0 JS |
2569 | |
2570 | case LSRJT_LOGICAL_ERR: | |
7f5f3d0d JS |
2571 | /* There are some cases where switches return this |
2572 | * error when they are not ready and should be returning | |
2573 | * Logical Busy. We should delay every time. | |
2574 | */ | |
2575 | if (cmd == ELS_CMD_FDISC && | |
2576 | stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) { | |
2577 | maxretry = 3; | |
2578 | delay = 1000; | |
2579 | retry = 1; | |
2580 | break; | |
2581 | } | |
92d7f7b0 JS |
2582 | case LSRJT_PROTOCOL_ERR: |
2583 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
2584 | (cmd == ELS_CMD_FDISC) && | |
2585 | ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) || | |
2586 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID)) | |
2587 | ) { | |
e8b62011 | 2588 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 2589 | "0122 FDISC Failed (x%x). " |
e8b62011 JS |
2590 | "Fabric Detected Bad WWN\n", |
2591 | stat.un.lsRjtError); | |
92d7f7b0 JS |
2592 | lpfc_vport_set_state(vport, |
2593 | FC_VPORT_FABRIC_REJ_WWN); | |
2594 | } | |
2595 | break; | |
dea3101e JB |
2596 | } |
2597 | break; | |
2598 | ||
2599 | case IOSTAT_INTERMED_RSP: | |
2600 | case IOSTAT_BA_RJT: | |
2601 | break; | |
2602 | ||
2603 | default: | |
2604 | break; | |
2605 | } | |
2606 | ||
488d1469 | 2607 | if (did == FDMI_DID) |
dea3101e | 2608 | retry = 1; |
dea3101e | 2609 | |
98c9ea5c | 2610 | if ((cmd == ELS_CMD_FLOGI) && |
1b32f6aa JS |
2611 | (phba->fc_topology != TOPOLOGY_LOOP) && |
2612 | !lpfc_error_lost_link(irsp)) { | |
98c9ea5c JS |
2613 | /* FLOGI retry policy */ |
2614 | retry = 1; | |
2615 | maxretry = 48; | |
2616 | if (cmdiocb->retry >= 32) | |
2617 | delay = 1000; | |
2618 | } | |
2619 | ||
dea3101e JB |
2620 | if ((++cmdiocb->retry) >= maxretry) { |
2621 | phba->fc_stat.elsRetryExceeded++; | |
2622 | retry = 0; | |
2623 | } | |
2624 | ||
ed957684 JS |
2625 | if ((vport->load_flag & FC_UNLOADING) != 0) |
2626 | retry = 0; | |
2627 | ||
dea3101e JB |
2628 | if (retry) { |
2629 | ||
2630 | /* Retry ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
2631 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2632 | "0107 Retry ELS command x%x to remote " | |
2633 | "NPORT x%x Data: x%x x%x\n", | |
2634 | cmd, did, cmdiocb->retry, delay); | |
dea3101e | 2635 | |
858c9f6c JS |
2636 | if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) && |
2637 | ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || | |
2638 | ((irsp->un.ulpWord[4] & 0xff) != IOERR_NO_RESOURCES))) { | |
2639 | /* Don't reset timer for no resources */ | |
2640 | ||
dea3101e | 2641 | /* If discovery / RSCN timer is running, reset it */ |
2e0fef85 | 2642 | if (timer_pending(&vport->fc_disctmo) || |
92d7f7b0 | 2643 | (vport->fc_flag & FC_RSCN_MODE)) |
2e0fef85 | 2644 | lpfc_set_disctmo(vport); |
dea3101e JB |
2645 | } |
2646 | ||
2647 | phba->fc_stat.elsXmitRetry++; | |
58da1ffb | 2648 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) { |
dea3101e JB |
2649 | phba->fc_stat.elsDelayRetry++; |
2650 | ndlp->nlp_retry = cmdiocb->retry; | |
2651 | ||
92d7f7b0 JS |
2652 | /* delay is specified in milliseconds */ |
2653 | mod_timer(&ndlp->nlp_delayfunc, | |
2654 | jiffies + msecs_to_jiffies(delay)); | |
2e0fef85 | 2655 | spin_lock_irq(shost->host_lock); |
dea3101e | 2656 | ndlp->nlp_flag |= NLP_DELAY_TMO; |
2e0fef85 | 2657 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2658 | |
5024ab17 | 2659 | ndlp->nlp_prev_state = ndlp->nlp_state; |
858c9f6c JS |
2660 | if (cmd == ELS_CMD_PRLI) |
2661 | lpfc_nlp_set_state(vport, ndlp, | |
2662 | NLP_STE_REG_LOGIN_ISSUE); | |
2663 | else | |
2664 | lpfc_nlp_set_state(vport, ndlp, | |
2665 | NLP_STE_NPR_NODE); | |
dea3101e JB |
2666 | ndlp->nlp_last_elscmd = cmd; |
2667 | ||
c9f8735b | 2668 | return 1; |
dea3101e JB |
2669 | } |
2670 | switch (cmd) { | |
2671 | case ELS_CMD_FLOGI: | |
2e0fef85 | 2672 | lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry); |
c9f8735b | 2673 | return 1; |
92d7f7b0 JS |
2674 | case ELS_CMD_FDISC: |
2675 | lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry); | |
2676 | return 1; | |
dea3101e | 2677 | case ELS_CMD_PLOGI: |
58da1ffb | 2678 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
488d1469 | 2679 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2680 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 2681 | NLP_STE_PLOGI_ISSUE); |
488d1469 | 2682 | } |
2e0fef85 | 2683 | lpfc_issue_els_plogi(vport, did, cmdiocb->retry); |
c9f8735b | 2684 | return 1; |
dea3101e | 2685 | case ELS_CMD_ADISC: |
5024ab17 | 2686 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
2687 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
2688 | lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 2689 | return 1; |
dea3101e | 2690 | case ELS_CMD_PRLI: |
5024ab17 | 2691 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
2692 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
2693 | lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 2694 | return 1; |
dea3101e | 2695 | case ELS_CMD_LOGO: |
5024ab17 | 2696 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
2697 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
2698 | lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 2699 | return 1; |
dea3101e JB |
2700 | } |
2701 | } | |
dea3101e | 2702 | /* No retry ELS command <elsCmd> to remote NPORT <did> */ |
98c9ea5c JS |
2703 | if (logerr) { |
2704 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
2705 | "0137 No retry ELS command x%x to remote " | |
2706 | "NPORT x%x: Out of Resources: Error:x%x/%x\n", | |
2707 | cmd, did, irsp->ulpStatus, | |
2708 | irsp->un.ulpWord[4]); | |
2709 | } | |
2710 | else { | |
2711 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
a58cbd52 JS |
2712 | "0108 No retry ELS command x%x to remote " |
2713 | "NPORT x%x Retried:%d Error:x%x/%x\n", | |
2714 | cmd, did, cmdiocb->retry, irsp->ulpStatus, | |
2715 | irsp->un.ulpWord[4]); | |
98c9ea5c | 2716 | } |
c9f8735b | 2717 | return 0; |
dea3101e JB |
2718 | } |
2719 | ||
e59058c4 JS |
2720 | /** |
2721 | * lpfc_els_free_data: Free lpfc dma buffer and data structure with an iocb. | |
2722 | * @phba: pointer to lpfc hba data structure. | |
2723 | * @buf_ptr1: pointer to the lpfc DMA buffer data structure. | |
2724 | * | |
2725 | * This routine releases the lpfc DMA (Direct Memory Access) buffer(s) | |
2726 | * associated with a command IOCB back to the lpfc DMA buffer pool. It first | |
2727 | * checks to see whether there is a lpfc DMA buffer associated with the | |
2728 | * response of the command IOCB. If so, it will be released before releasing | |
2729 | * the lpfc DMA buffer associated with the IOCB itself. | |
2730 | * | |
2731 | * Return code | |
2732 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
2733 | **/ | |
09372820 | 2734 | static int |
87af33fe JS |
2735 | lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1) |
2736 | { | |
2737 | struct lpfc_dmabuf *buf_ptr; | |
2738 | ||
e59058c4 | 2739 | /* Free the response before processing the command. */ |
87af33fe JS |
2740 | if (!list_empty(&buf_ptr1->list)) { |
2741 | list_remove_head(&buf_ptr1->list, buf_ptr, | |
2742 | struct lpfc_dmabuf, | |
2743 | list); | |
2744 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
2745 | kfree(buf_ptr); | |
2746 | } | |
2747 | lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); | |
2748 | kfree(buf_ptr1); | |
2749 | return 0; | |
2750 | } | |
2751 | ||
e59058c4 JS |
2752 | /** |
2753 | * lpfc_els_free_bpl: Free lpfc dma buffer and data structure with bpl. | |
2754 | * @phba: pointer to lpfc hba data structure. | |
2755 | * @buf_ptr: pointer to the lpfc dma buffer data structure. | |
2756 | * | |
2757 | * This routine releases the lpfc Direct Memory Access (DMA) buffer | |
2758 | * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer | |
2759 | * pool. | |
2760 | * | |
2761 | * Return code | |
2762 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
2763 | **/ | |
09372820 | 2764 | static int |
87af33fe JS |
2765 | lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr) |
2766 | { | |
2767 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
2768 | kfree(buf_ptr); | |
2769 | return 0; | |
2770 | } | |
2771 | ||
e59058c4 JS |
2772 | /** |
2773 | * lpfc_els_free_iocb: Free a command iocb and its associated resources. | |
2774 | * @phba: pointer to lpfc hba data structure. | |
2775 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
2776 | * | |
2777 | * This routine frees a command IOCB and its associated resources. The | |
2778 | * command IOCB data structure contains the reference to various associated | |
2779 | * resources, these fields must be set to NULL if the associated reference | |
2780 | * not present: | |
2781 | * context1 - reference to ndlp | |
2782 | * context2 - reference to cmd | |
2783 | * context2->next - reference to rsp | |
2784 | * context3 - reference to bpl | |
2785 | * | |
2786 | * It first properly decrements the reference count held on ndlp for the | |
2787 | * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not | |
2788 | * set, it invokes the lpfc_els_free_data() routine to release the Direct | |
2789 | * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it | |
2790 | * adds the DMA buffer the @phba data structure for the delayed release. | |
2791 | * If reference to the Buffer Pointer List (BPL) is present, the | |
2792 | * lpfc_els_free_bpl() routine is invoked to release the DMA memory | |
2793 | * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is | |
2794 | * invoked to release the IOCB data structure back to @phba IOCBQ list. | |
2795 | * | |
2796 | * Return code | |
2797 | * 0 - Success (currently, always return 0) | |
2798 | **/ | |
dea3101e | 2799 | int |
329f9bc7 | 2800 | lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) |
dea3101e JB |
2801 | { |
2802 | struct lpfc_dmabuf *buf_ptr, *buf_ptr1; | |
a8adb832 JS |
2803 | struct lpfc_nodelist *ndlp; |
2804 | ||
2805 | ndlp = (struct lpfc_nodelist *)elsiocb->context1; | |
2806 | if (ndlp) { | |
2807 | if (ndlp->nlp_flag & NLP_DEFER_RM) { | |
2808 | lpfc_nlp_put(ndlp); | |
dea3101e | 2809 | |
a8adb832 JS |
2810 | /* If the ndlp is not being used by another discovery |
2811 | * thread, free it. | |
2812 | */ | |
2813 | if (!lpfc_nlp_not_used(ndlp)) { | |
2814 | /* If ndlp is being used by another discovery | |
2815 | * thread, just clear NLP_DEFER_RM | |
2816 | */ | |
2817 | ndlp->nlp_flag &= ~NLP_DEFER_RM; | |
2818 | } | |
2819 | } | |
2820 | else | |
2821 | lpfc_nlp_put(ndlp); | |
329f9bc7 JS |
2822 | elsiocb->context1 = NULL; |
2823 | } | |
dea3101e JB |
2824 | /* context2 = cmd, context2->next = rsp, context3 = bpl */ |
2825 | if (elsiocb->context2) { | |
0ff10d46 JS |
2826 | if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) { |
2827 | /* Firmware could still be in progress of DMAing | |
2828 | * payload, so don't free data buffer till after | |
2829 | * a hbeat. | |
2830 | */ | |
2831 | elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE; | |
2832 | buf_ptr = elsiocb->context2; | |
2833 | elsiocb->context2 = NULL; | |
2834 | if (buf_ptr) { | |
2835 | buf_ptr1 = NULL; | |
2836 | spin_lock_irq(&phba->hbalock); | |
2837 | if (!list_empty(&buf_ptr->list)) { | |
2838 | list_remove_head(&buf_ptr->list, | |
2839 | buf_ptr1, struct lpfc_dmabuf, | |
2840 | list); | |
2841 | INIT_LIST_HEAD(&buf_ptr1->list); | |
2842 | list_add_tail(&buf_ptr1->list, | |
2843 | &phba->elsbuf); | |
2844 | phba->elsbuf_cnt++; | |
2845 | } | |
2846 | INIT_LIST_HEAD(&buf_ptr->list); | |
2847 | list_add_tail(&buf_ptr->list, &phba->elsbuf); | |
2848 | phba->elsbuf_cnt++; | |
2849 | spin_unlock_irq(&phba->hbalock); | |
2850 | } | |
2851 | } else { | |
2852 | buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2; | |
2853 | lpfc_els_free_data(phba, buf_ptr1); | |
2854 | } | |
dea3101e JB |
2855 | } |
2856 | ||
2857 | if (elsiocb->context3) { | |
2858 | buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3; | |
87af33fe | 2859 | lpfc_els_free_bpl(phba, buf_ptr); |
dea3101e | 2860 | } |
604a3e30 | 2861 | lpfc_sli_release_iocbq(phba, elsiocb); |
dea3101e JB |
2862 | return 0; |
2863 | } | |
2864 | ||
e59058c4 JS |
2865 | /** |
2866 | * lpfc_cmpl_els_logo_acc: Completion callback function to logo acc response. | |
2867 | * @phba: pointer to lpfc hba data structure. | |
2868 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2869 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2870 | * | |
2871 | * This routine is the completion callback function to the Logout (LOGO) | |
2872 | * Accept (ACC) Response ELS command. This routine is invoked to indicate | |
2873 | * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to | |
2874 | * release the ndlp if it has the last reference remaining (reference count | |
2875 | * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1 | |
2876 | * field to NULL to inform the following lpfc_els_free_iocb() routine no | |
2877 | * ndlp reference count needs to be decremented. Otherwise, the ndlp | |
2878 | * reference use-count shall be decremented by the lpfc_els_free_iocb() | |
2879 | * routine. Finally, the lpfc_els_free_iocb() is invoked to release the | |
2880 | * IOCB data structure. | |
2881 | **/ | |
dea3101e | 2882 | static void |
2e0fef85 JS |
2883 | lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2884 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2885 | { |
2e0fef85 JS |
2886 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
2887 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c JS |
2888 | IOCB_t *irsp; |
2889 | ||
2890 | irsp = &rspiocb->iocb; | |
2891 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
2892 | "ACC LOGO cmpl: status:x%x/x%x did:x%x", | |
2893 | irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID); | |
dea3101e | 2894 | /* ACC to LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
2895 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2896 | "0109 ACC to LOGO completes to NPort x%x " | |
2897 | "Data: x%x x%x x%x\n", | |
2898 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
2899 | ndlp->nlp_rpi); | |
87af33fe JS |
2900 | |
2901 | if (ndlp->nlp_state == NLP_STE_NPR_NODE) { | |
2902 | /* NPort Recovery mode or node is just allocated */ | |
2903 | if (!lpfc_nlp_not_used(ndlp)) { | |
2904 | /* If the ndlp is being used by another discovery | |
2905 | * thread, just unregister the RPI. | |
2906 | */ | |
2907 | lpfc_unreg_rpi(vport, ndlp); | |
fa4066b6 JS |
2908 | } else { |
2909 | /* Indicate the node has already released, should | |
2910 | * not reference to it from within lpfc_els_free_iocb. | |
2911 | */ | |
2912 | cmdiocb->context1 = NULL; | |
87af33fe | 2913 | } |
dea3101e JB |
2914 | } |
2915 | lpfc_els_free_iocb(phba, cmdiocb); | |
2916 | return; | |
2917 | } | |
2918 | ||
e59058c4 JS |
2919 | /** |
2920 | * lpfc_mbx_cmpl_dflt_rpi: Completion callbk func for unreg dflt rpi mbox cmd. | |
2921 | * @phba: pointer to lpfc hba data structure. | |
2922 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
2923 | * | |
2924 | * This routine is the completion callback function for unregister default | |
2925 | * RPI (Remote Port Index) mailbox command to the @phba. It simply releases | |
2926 | * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and | |
2927 | * decrements the ndlp reference count held for this completion callback | |
2928 | * function. After that, it invokes the lpfc_nlp_not_used() to check | |
2929 | * whether there is only one reference left on the ndlp. If so, it will | |
2930 | * perform one more decrement and trigger the release of the ndlp. | |
2931 | **/ | |
858c9f6c JS |
2932 | void |
2933 | lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
2934 | { | |
2935 | struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); | |
2936 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
2937 | ||
2938 | pmb->context1 = NULL; | |
2939 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
2940 | kfree(mp); | |
2941 | mempool_free(pmb, phba->mbox_mem_pool); | |
58da1ffb | 2942 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
a8adb832 | 2943 | lpfc_nlp_put(ndlp); |
a8adb832 JS |
2944 | /* This is the end of the default RPI cleanup logic for this |
2945 | * ndlp. If no other discovery threads are using this ndlp. | |
2946 | * we should free all resources associated with it. | |
2947 | */ | |
2948 | lpfc_nlp_not_used(ndlp); | |
2949 | } | |
858c9f6c JS |
2950 | return; |
2951 | } | |
2952 | ||
e59058c4 JS |
2953 | /** |
2954 | * lpfc_cmpl_els_rsp: Completion callback function for els response iocb cmd. | |
2955 | * @phba: pointer to lpfc hba data structure. | |
2956 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2957 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2958 | * | |
2959 | * This routine is the completion callback function for ELS Response IOCB | |
2960 | * command. In normal case, this callback function just properly sets the | |
2961 | * nlp_flag bitmap in the ndlp data structure, if the mbox command reference | |
2962 | * field in the command IOCB is not NULL, the referred mailbox command will | |
2963 | * be send out, and then invokes the lpfc_els_free_iocb() routine to release | |
2964 | * the IOCB. Under error conditions, such as when a LS_RJT is returned or a | |
2965 | * link down event occurred during the discovery, the lpfc_nlp_not_used() | |
2966 | * routine shall be invoked trying to release the ndlp if no other threads | |
2967 | * are currently referring it. | |
2968 | **/ | |
dea3101e | 2969 | static void |
858c9f6c | 2970 | lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
329f9bc7 | 2971 | struct lpfc_iocbq *rspiocb) |
dea3101e | 2972 | { |
2e0fef85 JS |
2973 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
2974 | struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL; | |
2975 | struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL; | |
87af33fe JS |
2976 | IOCB_t *irsp; |
2977 | uint8_t *pcmd; | |
dea3101e | 2978 | LPFC_MBOXQ_t *mbox = NULL; |
2e0fef85 | 2979 | struct lpfc_dmabuf *mp = NULL; |
87af33fe | 2980 | uint32_t ls_rjt = 0; |
dea3101e | 2981 | |
33ccf8d1 JS |
2982 | irsp = &rspiocb->iocb; |
2983 | ||
dea3101e JB |
2984 | if (cmdiocb->context_un.mbox) |
2985 | mbox = cmdiocb->context_un.mbox; | |
2986 | ||
fa4066b6 JS |
2987 | /* First determine if this is a LS_RJT cmpl. Note, this callback |
2988 | * function can have cmdiocb->contest1 (ndlp) field set to NULL. | |
2989 | */ | |
87af33fe | 2990 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); |
58da1ffb JS |
2991 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
2992 | (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) { | |
fa4066b6 JS |
2993 | /* A LS_RJT associated with Default RPI cleanup has its own |
2994 | * seperate code path. | |
87af33fe JS |
2995 | */ |
2996 | if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
2997 | ls_rjt = 1; | |
2998 | } | |
2999 | ||
dea3101e | 3000 | /* Check to see if link went down during discovery */ |
58da1ffb | 3001 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) { |
dea3101e | 3002 | if (mbox) { |
14691150 JS |
3003 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3004 | if (mp) { | |
3005 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3006 | kfree(mp); | |
3007 | } | |
329f9bc7 | 3008 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 3009 | } |
58da1ffb JS |
3010 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3011 | (ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
fa4066b6 | 3012 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3013 | ndlp = NULL; |
fa4066b6 JS |
3014 | /* Indicate the node has already released, |
3015 | * should not reference to it from within | |
3016 | * the routine lpfc_els_free_iocb. | |
3017 | */ | |
3018 | cmdiocb->context1 = NULL; | |
3019 | } | |
dea3101e JB |
3020 | goto out; |
3021 | } | |
3022 | ||
858c9f6c | 3023 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
51ef4c26 | 3024 | "ELS rsp cmpl: status:x%x/x%x did:x%x", |
858c9f6c | 3025 | irsp->ulpStatus, irsp->un.ulpWord[4], |
51ef4c26 | 3026 | cmdiocb->iocb.un.elsreq64.remoteID); |
dea3101e | 3027 | /* ELS response tag <ulpIoTag> completes */ |
e8b62011 JS |
3028 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3029 | "0110 ELS response tag x%x completes " | |
3030 | "Data: x%x x%x x%x x%x x%x x%x x%x\n", | |
3031 | cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus, | |
3032 | rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout, | |
3033 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3034 | ndlp->nlp_rpi); | |
dea3101e JB |
3035 | if (mbox) { |
3036 | if ((rspiocb->iocb.ulpStatus == 0) | |
3037 | && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) { | |
2e0fef85 | 3038 | lpfc_unreg_rpi(vport, ndlp); |
e47c9093 JS |
3039 | /* Increment reference count to ndlp to hold the |
3040 | * reference to ndlp for the callback function. | |
3041 | */ | |
329f9bc7 | 3042 | mbox->context2 = lpfc_nlp_get(ndlp); |
2e0fef85 | 3043 | mbox->vport = vport; |
858c9f6c JS |
3044 | if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) { |
3045 | mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; | |
3046 | mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; | |
3047 | } | |
3048 | else { | |
3049 | mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; | |
3050 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
3051 | lpfc_nlp_set_state(vport, ndlp, | |
2e0fef85 | 3052 | NLP_STE_REG_LOGIN_ISSUE); |
858c9f6c | 3053 | } |
0b727fea | 3054 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
e47c9093 | 3055 | != MBX_NOT_FINISHED) |
dea3101e | 3056 | goto out; |
e47c9093 JS |
3057 | else |
3058 | /* Decrement the ndlp reference count we | |
3059 | * set for this failed mailbox command. | |
3060 | */ | |
3061 | lpfc_nlp_put(ndlp); | |
98c9ea5c JS |
3062 | |
3063 | /* ELS rsp: Cannot issue reg_login for <NPortid> */ | |
3064 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3065 | "0138 ELS rsp: Cannot issue reg_login for x%x " | |
3066 | "Data: x%x x%x x%x\n", | |
3067 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3068 | ndlp->nlp_rpi); | |
3069 | ||
fa4066b6 | 3070 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3071 | ndlp = NULL; |
fa4066b6 JS |
3072 | /* Indicate node has already been released, |
3073 | * should not reference to it from within | |
3074 | * the routine lpfc_els_free_iocb. | |
3075 | */ | |
3076 | cmdiocb->context1 = NULL; | |
3077 | } | |
dea3101e | 3078 | } else { |
858c9f6c JS |
3079 | /* Do not drop node for lpfc_els_abort'ed ELS cmds */ |
3080 | if (!lpfc_error_lost_link(irsp) && | |
3081 | ndlp->nlp_flag & NLP_ACC_REGLOGIN) { | |
fa4066b6 | 3082 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3083 | ndlp = NULL; |
fa4066b6 JS |
3084 | /* Indicate node has already been |
3085 | * released, should not reference | |
3086 | * to it from within the routine | |
3087 | * lpfc_els_free_iocb. | |
3088 | */ | |
3089 | cmdiocb->context1 = NULL; | |
3090 | } | |
dea3101e JB |
3091 | } |
3092 | } | |
14691150 JS |
3093 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3094 | if (mp) { | |
3095 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3096 | kfree(mp); | |
3097 | } | |
3098 | mempool_free(mbox, phba->mbox_mem_pool); | |
dea3101e JB |
3099 | } |
3100 | out: | |
58da1ffb | 3101 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
2e0fef85 | 3102 | spin_lock_irq(shost->host_lock); |
858c9f6c | 3103 | ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI); |
2e0fef85 | 3104 | spin_unlock_irq(shost->host_lock); |
87af33fe JS |
3105 | |
3106 | /* If the node is not being used by another discovery thread, | |
3107 | * and we are sending a reject, we are done with it. | |
3108 | * Release driver reference count here and free associated | |
3109 | * resources. | |
3110 | */ | |
3111 | if (ls_rjt) | |
fa4066b6 JS |
3112 | if (lpfc_nlp_not_used(ndlp)) |
3113 | /* Indicate node has already been released, | |
3114 | * should not reference to it from within | |
3115 | * the routine lpfc_els_free_iocb. | |
3116 | */ | |
3117 | cmdiocb->context1 = NULL; | |
dea3101e | 3118 | } |
87af33fe | 3119 | |
dea3101e JB |
3120 | lpfc_els_free_iocb(phba, cmdiocb); |
3121 | return; | |
3122 | } | |
3123 | ||
e59058c4 JS |
3124 | /** |
3125 | * lpfc_els_rsp_acc: Prepare and issue an acc response iocb command. | |
3126 | * @vport: pointer to a host virtual N_Port data structure. | |
3127 | * @flag: the els command code to be accepted. | |
3128 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3129 | * @ndlp: pointer to a node-list data structure. | |
3130 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3131 | * | |
3132 | * This routine prepares and issues an Accept (ACC) response IOCB | |
3133 | * command. It uses the @flag to properly set up the IOCB field for the | |
3134 | * specific ACC response command to be issued and invokes the | |
3135 | * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a | |
3136 | * @mbox pointer is passed in, it will be put into the context_un.mbox | |
3137 | * field of the IOCB for the completion callback function to issue the | |
3138 | * mailbox command to the HBA later when callback is invoked. | |
3139 | * | |
3140 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3141 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3142 | * will be stored into the context1 field of the IOCB for the completion | |
3143 | * callback function to the corresponding response ELS IOCB command. | |
3144 | * | |
3145 | * Return code | |
3146 | * 0 - Successfully issued acc response | |
3147 | * 1 - Failed to issue acc response | |
3148 | **/ | |
dea3101e | 3149 | int |
2e0fef85 JS |
3150 | lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, |
3151 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, | |
51ef4c26 | 3152 | LPFC_MBOXQ_t *mbox) |
dea3101e | 3153 | { |
2e0fef85 JS |
3154 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
3155 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
3156 | IOCB_t *icmd; |
3157 | IOCB_t *oldcmd; | |
3158 | struct lpfc_iocbq *elsiocb; | |
3159 | struct lpfc_sli_ring *pring; | |
3160 | struct lpfc_sli *psli; | |
3161 | uint8_t *pcmd; | |
3162 | uint16_t cmdsize; | |
3163 | int rc; | |
82d9a2a2 | 3164 | ELS_PKT *els_pkt_ptr; |
dea3101e JB |
3165 | |
3166 | psli = &phba->sli; | |
3167 | pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ | |
3168 | oldcmd = &oldiocb->iocb; | |
3169 | ||
3170 | switch (flag) { | |
3171 | case ELS_CMD_ACC: | |
92d7f7b0 | 3172 | cmdsize = sizeof(uint32_t); |
2e0fef85 JS |
3173 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3174 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3175 | if (!elsiocb) { |
2e0fef85 | 3176 | spin_lock_irq(shost->host_lock); |
5024ab17 | 3177 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3178 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 3179 | return 1; |
dea3101e | 3180 | } |
2e0fef85 | 3181 | |
dea3101e JB |
3182 | icmd = &elsiocb->iocb; |
3183 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3184 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3185 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3186 | pcmd += sizeof(uint32_t); |
858c9f6c JS |
3187 | |
3188 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3189 | "Issue ACC: did:x%x flg:x%x", | |
3190 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e JB |
3191 | break; |
3192 | case ELS_CMD_PLOGI: | |
92d7f7b0 | 3193 | cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t)); |
2e0fef85 JS |
3194 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3195 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3196 | if (!elsiocb) |
c9f8735b | 3197 | return 1; |
488d1469 | 3198 | |
dea3101e JB |
3199 | icmd = &elsiocb->iocb; |
3200 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3201 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3202 | ||
3203 | if (mbox) | |
3204 | elsiocb->context_un.mbox = mbox; | |
3205 | ||
3206 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 JS |
3207 | pcmd += sizeof(uint32_t); |
3208 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
858c9f6c JS |
3209 | |
3210 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3211 | "Issue ACC PLOGI: did:x%x flg:x%x", | |
3212 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e | 3213 | break; |
82d9a2a2 | 3214 | case ELS_CMD_PRLO: |
92d7f7b0 | 3215 | cmdsize = sizeof(uint32_t) + sizeof(PRLO); |
2e0fef85 | 3216 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
82d9a2a2 JS |
3217 | ndlp, ndlp->nlp_DID, ELS_CMD_PRLO); |
3218 | if (!elsiocb) | |
3219 | return 1; | |
3220 | ||
3221 | icmd = &elsiocb->iocb; | |
3222 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3223 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3224 | ||
3225 | memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt, | |
92d7f7b0 | 3226 | sizeof(uint32_t) + sizeof(PRLO)); |
82d9a2a2 JS |
3227 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC; |
3228 | els_pkt_ptr = (ELS_PKT *) pcmd; | |
3229 | els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED; | |
858c9f6c JS |
3230 | |
3231 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3232 | "Issue ACC PRLO: did:x%x flg:x%x", | |
3233 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
82d9a2a2 | 3234 | break; |
dea3101e | 3235 | default: |
c9f8735b | 3236 | return 1; |
dea3101e | 3237 | } |
dea3101e | 3238 | /* Xmit ELS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3239 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3240 | "0128 Xmit ELS ACC response tag x%x, XRI: x%x, " | |
3241 | "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x\n", | |
3242 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3243 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3244 | ndlp->nlp_rpi); | |
dea3101e | 3245 | if (ndlp->nlp_flag & NLP_LOGO_ACC) { |
2e0fef85 | 3246 | spin_lock_irq(shost->host_lock); |
c9f8735b | 3247 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3248 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
3249 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc; |
3250 | } else { | |
858c9f6c | 3251 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e JB |
3252 | } |
3253 | ||
3254 | phba->fc_stat.elsXmitACC++; | |
dea3101e | 3255 | rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); |
dea3101e JB |
3256 | if (rc == IOCB_ERROR) { |
3257 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3258 | return 1; |
dea3101e | 3259 | } |
c9f8735b | 3260 | return 0; |
dea3101e JB |
3261 | } |
3262 | ||
e59058c4 JS |
3263 | /** |
3264 | * lpfc_els_rsp_reject: Propare and issue a rjt response iocb command. | |
3265 | * @vport: pointer to a virtual N_Port data structure. | |
3266 | * @rejectError: | |
3267 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3268 | * @ndlp: pointer to a node-list data structure. | |
3269 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3270 | * | |
3271 | * This routine prepares and issue an Reject (RJT) response IOCB | |
3272 | * command. If a @mbox pointer is passed in, it will be put into the | |
3273 | * context_un.mbox field of the IOCB for the completion callback function | |
3274 | * to issue to the HBA later. | |
3275 | * | |
3276 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3277 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3278 | * will be stored into the context1 field of the IOCB for the completion | |
3279 | * callback function to the reject response ELS IOCB command. | |
3280 | * | |
3281 | * Return code | |
3282 | * 0 - Successfully issued reject response | |
3283 | * 1 - Failed to issue reject response | |
3284 | **/ | |
dea3101e | 3285 | int |
2e0fef85 | 3286 | lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, |
858c9f6c JS |
3287 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, |
3288 | LPFC_MBOXQ_t *mbox) | |
dea3101e | 3289 | { |
2e0fef85 | 3290 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
3291 | IOCB_t *icmd; |
3292 | IOCB_t *oldcmd; | |
3293 | struct lpfc_iocbq *elsiocb; | |
3294 | struct lpfc_sli_ring *pring; | |
3295 | struct lpfc_sli *psli; | |
3296 | uint8_t *pcmd; | |
3297 | uint16_t cmdsize; | |
3298 | int rc; | |
3299 | ||
3300 | psli = &phba->sli; | |
3301 | pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ | |
3302 | ||
92d7f7b0 | 3303 | cmdsize = 2 * sizeof(uint32_t); |
2e0fef85 JS |
3304 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3305 | ndlp->nlp_DID, ELS_CMD_LS_RJT); | |
488d1469 | 3306 | if (!elsiocb) |
c9f8735b | 3307 | return 1; |
dea3101e JB |
3308 | |
3309 | icmd = &elsiocb->iocb; | |
3310 | oldcmd = &oldiocb->iocb; | |
3311 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3312 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3313 | ||
3314 | *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; | |
92d7f7b0 | 3315 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3316 | *((uint32_t *) (pcmd)) = rejectError; |
3317 | ||
51ef4c26 | 3318 | if (mbox) |
858c9f6c | 3319 | elsiocb->context_un.mbox = mbox; |
858c9f6c | 3320 | |
dea3101e | 3321 | /* Xmit ELS RJT <err> response tag <ulpIoTag> */ |
e8b62011 JS |
3322 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3323 | "0129 Xmit ELS RJT x%x response tag x%x " | |
3324 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
3325 | "rpi x%x\n", | |
3326 | rejectError, elsiocb->iotag, | |
3327 | elsiocb->iocb.ulpContext, ndlp->nlp_DID, | |
3328 | ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); | |
858c9f6c JS |
3329 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3330 | "Issue LS_RJT: did:x%x flg:x%x err:x%x", | |
3331 | ndlp->nlp_DID, ndlp->nlp_flag, rejectError); | |
3332 | ||
dea3101e | 3333 | phba->fc_stat.elsXmitLSRJT++; |
858c9f6c | 3334 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 3335 | rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); |
51ef4c26 | 3336 | |
dea3101e JB |
3337 | if (rc == IOCB_ERROR) { |
3338 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3339 | return 1; |
dea3101e | 3340 | } |
c9f8735b | 3341 | return 0; |
dea3101e JB |
3342 | } |
3343 | ||
e59058c4 JS |
3344 | /** |
3345 | * lpfc_els_rsp_adisc_acc: Prepare and issue acc response to adisc iocb cmd. | |
3346 | * @vport: pointer to a virtual N_Port data structure. | |
3347 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3348 | * @ndlp: pointer to a node-list data structure. | |
3349 | * | |
3350 | * This routine prepares and issues an Accept (ACC) response to Address | |
3351 | * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB | |
3352 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
3353 | * | |
3354 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3355 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3356 | * will be stored into the context1 field of the IOCB for the completion | |
3357 | * callback function to the ADISC Accept response ELS IOCB command. | |
3358 | * | |
3359 | * Return code | |
3360 | * 0 - Successfully issued acc adisc response | |
3361 | * 1 - Failed to issue adisc acc response | |
3362 | **/ | |
dea3101e | 3363 | int |
2e0fef85 JS |
3364 | lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
3365 | struct lpfc_nodelist *ndlp) | |
dea3101e | 3366 | { |
2e0fef85 JS |
3367 | struct lpfc_hba *phba = vport->phba; |
3368 | struct lpfc_sli *psli = &phba->sli; | |
3369 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; | |
dea3101e | 3370 | ADISC *ap; |
2e0fef85 | 3371 | IOCB_t *icmd, *oldcmd; |
dea3101e | 3372 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
3373 | uint8_t *pcmd; |
3374 | uint16_t cmdsize; | |
3375 | int rc; | |
3376 | ||
92d7f7b0 | 3377 | cmdsize = sizeof(uint32_t) + sizeof(ADISC); |
2e0fef85 JS |
3378 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3379 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3380 | if (!elsiocb) |
c9f8735b | 3381 | return 1; |
dea3101e | 3382 | |
5b8bd0c9 JS |
3383 | icmd = &elsiocb->iocb; |
3384 | oldcmd = &oldiocb->iocb; | |
3385 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3386 | ||
dea3101e | 3387 | /* Xmit ADISC ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3388 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3389 | "0130 Xmit ADISC ACC response iotag x%x xri: " | |
3390 | "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n", | |
3391 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3392 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3393 | ndlp->nlp_rpi); | |
dea3101e JB |
3394 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3395 | ||
3396 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3397 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3398 | |
3399 | ap = (ADISC *) (pcmd); | |
3400 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
3401 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
3402 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 3403 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 3404 | |
858c9f6c JS |
3405 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3406 | "Issue ACC ADISC: did:x%x flg:x%x", | |
3407 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3408 | ||
dea3101e | 3409 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3410 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 3411 | rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); |
dea3101e JB |
3412 | if (rc == IOCB_ERROR) { |
3413 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3414 | return 1; |
dea3101e | 3415 | } |
c9f8735b | 3416 | return 0; |
dea3101e JB |
3417 | } |
3418 | ||
e59058c4 JS |
3419 | /** |
3420 | * lpfc_els_rsp_prli_acc: Prepare and issue acc response to prli iocb cmd. | |
3421 | * @vport: pointer to a virtual N_Port data structure. | |
3422 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3423 | * @ndlp: pointer to a node-list data structure. | |
3424 | * | |
3425 | * This routine prepares and issues an Accept (ACC) response to Process | |
3426 | * Login (PRLI) ELS command. It simply prepares the payload of the IOCB | |
3427 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
3428 | * | |
3429 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3430 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3431 | * will be stored into the context1 field of the IOCB for the completion | |
3432 | * callback function to the PRLI Accept response ELS IOCB command. | |
3433 | * | |
3434 | * Return code | |
3435 | * 0 - Successfully issued acc prli response | |
3436 | * 1 - Failed to issue acc prli response | |
3437 | **/ | |
dea3101e | 3438 | int |
2e0fef85 | 3439 | lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
5b8bd0c9 | 3440 | struct lpfc_nodelist *ndlp) |
dea3101e | 3441 | { |
2e0fef85 | 3442 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
3443 | PRLI *npr; |
3444 | lpfc_vpd_t *vpd; | |
3445 | IOCB_t *icmd; | |
3446 | IOCB_t *oldcmd; | |
3447 | struct lpfc_iocbq *elsiocb; | |
3448 | struct lpfc_sli_ring *pring; | |
3449 | struct lpfc_sli *psli; | |
3450 | uint8_t *pcmd; | |
3451 | uint16_t cmdsize; | |
3452 | int rc; | |
3453 | ||
3454 | psli = &phba->sli; | |
3455 | pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ | |
3456 | ||
92d7f7b0 | 3457 | cmdsize = sizeof(uint32_t) + sizeof(PRLI); |
2e0fef85 | 3458 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
92d7f7b0 | 3459 | ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK))); |
c9f8735b JW |
3460 | if (!elsiocb) |
3461 | return 1; | |
dea3101e | 3462 | |
5b8bd0c9 JS |
3463 | icmd = &elsiocb->iocb; |
3464 | oldcmd = &oldiocb->iocb; | |
3465 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
dea3101e | 3466 | /* Xmit PRLI ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3467 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3468 | "0131 Xmit PRLI ACC response tag x%x xri x%x, " | |
3469 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
3470 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3471 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3472 | ndlp->nlp_rpi); | |
dea3101e JB |
3473 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3474 | ||
3475 | *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); | |
92d7f7b0 | 3476 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3477 | |
3478 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
92d7f7b0 | 3479 | memset(pcmd, 0, sizeof(PRLI)); |
dea3101e JB |
3480 | |
3481 | npr = (PRLI *) pcmd; | |
3482 | vpd = &phba->vpd; | |
3483 | /* | |
0d2b6b83 JS |
3484 | * If the remote port is a target and our firmware version is 3.20 or |
3485 | * later, set the following bits for FC-TAPE support. | |
dea3101e | 3486 | */ |
0d2b6b83 JS |
3487 | if ((ndlp->nlp_type & NLP_FCP_TARGET) && |
3488 | (vpd->rev.feaLevelHigh >= 0x02)) { | |
dea3101e JB |
3489 | npr->ConfmComplAllowed = 1; |
3490 | npr->Retry = 1; | |
3491 | npr->TaskRetryIdReq = 1; | |
3492 | } | |
3493 | ||
3494 | npr->acceptRspCode = PRLI_REQ_EXECUTED; | |
3495 | npr->estabImagePair = 1; | |
3496 | npr->readXferRdyDis = 1; | |
3497 | npr->ConfmComplAllowed = 1; | |
3498 | ||
3499 | npr->prliType = PRLI_FCP_TYPE; | |
3500 | npr->initiatorFunc = 1; | |
3501 | ||
858c9f6c JS |
3502 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3503 | "Issue ACC PRLI: did:x%x flg:x%x", | |
3504 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3505 | ||
dea3101e | 3506 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3507 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 3508 | |
dea3101e | 3509 | rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); |
dea3101e JB |
3510 | if (rc == IOCB_ERROR) { |
3511 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3512 | return 1; |
dea3101e | 3513 | } |
c9f8735b | 3514 | return 0; |
dea3101e JB |
3515 | } |
3516 | ||
e59058c4 JS |
3517 | /** |
3518 | * lpfc_els_rsp_rnid_acc: Issue rnid acc response iocb command. | |
3519 | * @vport: pointer to a virtual N_Port data structure. | |
3520 | * @format: rnid command format. | |
3521 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3522 | * @ndlp: pointer to a node-list data structure. | |
3523 | * | |
3524 | * This routine issues a Request Node Identification Data (RNID) Accept | |
3525 | * (ACC) response. It constructs the RNID ACC response command according to | |
3526 | * the proper @format and then calls the lpfc_sli_issue_iocb() routine to | |
3527 | * issue the response. Note that this command does not need to hold the ndlp | |
3528 | * reference count for the callback. So, the ndlp reference count taken by | |
3529 | * the lpfc_prep_els_iocb() routine is put back and the context1 field of | |
3530 | * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that | |
3531 | * there is no ndlp reference available. | |
3532 | * | |
3533 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3534 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3535 | * will be stored into the context1 field of the IOCB for the completion | |
3536 | * callback function. However, for the RNID Accept Response ELS command, | |
3537 | * this is undone later by this routine after the IOCB is allocated. | |
3538 | * | |
3539 | * Return code | |
3540 | * 0 - Successfully issued acc rnid response | |
3541 | * 1 - Failed to issue acc rnid response | |
3542 | **/ | |
dea3101e | 3543 | static int |
2e0fef85 | 3544 | lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, |
329f9bc7 | 3545 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) |
dea3101e | 3546 | { |
2e0fef85 | 3547 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3548 | RNID *rn; |
2e0fef85 | 3549 | IOCB_t *icmd, *oldcmd; |
dea3101e JB |
3550 | struct lpfc_iocbq *elsiocb; |
3551 | struct lpfc_sli_ring *pring; | |
3552 | struct lpfc_sli *psli; | |
3553 | uint8_t *pcmd; | |
3554 | uint16_t cmdsize; | |
3555 | int rc; | |
3556 | ||
3557 | psli = &phba->sli; | |
3558 | pring = &psli->ring[LPFC_ELS_RING]; | |
3559 | ||
92d7f7b0 JS |
3560 | cmdsize = sizeof(uint32_t) + sizeof(uint32_t) |
3561 | + (2 * sizeof(struct lpfc_name)); | |
dea3101e | 3562 | if (format) |
92d7f7b0 | 3563 | cmdsize += sizeof(RNID_TOP_DISC); |
dea3101e | 3564 | |
2e0fef85 JS |
3565 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3566 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3567 | if (!elsiocb) |
c9f8735b | 3568 | return 1; |
dea3101e | 3569 | |
5b8bd0c9 JS |
3570 | icmd = &elsiocb->iocb; |
3571 | oldcmd = &oldiocb->iocb; | |
3572 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
dea3101e | 3573 | /* Xmit RNID ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3574 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3575 | "0132 Xmit RNID ACC response tag x%x xri x%x\n", | |
3576 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
dea3101e | 3577 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
dea3101e | 3578 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
92d7f7b0 | 3579 | pcmd += sizeof(uint32_t); |
dea3101e | 3580 | |
92d7f7b0 | 3581 | memset(pcmd, 0, sizeof(RNID)); |
dea3101e JB |
3582 | rn = (RNID *) (pcmd); |
3583 | rn->Format = format; | |
92d7f7b0 JS |
3584 | rn->CommonLen = (2 * sizeof(struct lpfc_name)); |
3585 | memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name)); | |
3586 | memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
dea3101e JB |
3587 | switch (format) { |
3588 | case 0: | |
3589 | rn->SpecificLen = 0; | |
3590 | break; | |
3591 | case RNID_TOPOLOGY_DISC: | |
92d7f7b0 | 3592 | rn->SpecificLen = sizeof(RNID_TOP_DISC); |
dea3101e | 3593 | memcpy(&rn->un.topologyDisc.portName, |
92d7f7b0 | 3594 | &vport->fc_portname, sizeof(struct lpfc_name)); |
dea3101e JB |
3595 | rn->un.topologyDisc.unitType = RNID_HBA; |
3596 | rn->un.topologyDisc.physPort = 0; | |
3597 | rn->un.topologyDisc.attachedNodes = 0; | |
3598 | break; | |
3599 | default: | |
3600 | rn->CommonLen = 0; | |
3601 | rn->SpecificLen = 0; | |
3602 | break; | |
3603 | } | |
3604 | ||
858c9f6c JS |
3605 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3606 | "Issue ACC RNID: did:x%x flg:x%x", | |
3607 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3608 | ||
dea3101e | 3609 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3610 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
329f9bc7 | 3611 | lpfc_nlp_put(ndlp); |
dea3101e JB |
3612 | elsiocb->context1 = NULL; /* Don't need ndlp for cmpl, |
3613 | * it could be freed */ | |
3614 | ||
dea3101e | 3615 | rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); |
dea3101e JB |
3616 | if (rc == IOCB_ERROR) { |
3617 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3618 | return 1; |
dea3101e | 3619 | } |
c9f8735b | 3620 | return 0; |
dea3101e JB |
3621 | } |
3622 | ||
e59058c4 JS |
3623 | /** |
3624 | * lpfc_els_disc_adisc: Issue remaining adisc iocbs to npr nodes of a vport. | |
3625 | * @vport: pointer to a host virtual N_Port data structure. | |
3626 | * | |
3627 | * This routine issues Address Discover (ADISC) ELS commands to those | |
3628 | * N_Ports which are in node port recovery state and ADISC has not been issued | |
3629 | * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the | |
3630 | * lpfc_issue_els_adisc() routine, the per @vport number of discover count | |
3631 | * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a | |
3632 | * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will | |
3633 | * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC | |
3634 | * IOCBs quit for later pick up. On the other hand, after walking through | |
3635 | * all the ndlps with the @vport and there is none ADISC IOCB issued, the | |
3636 | * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is | |
3637 | * no more ADISC need to be sent. | |
3638 | * | |
3639 | * Return code | |
3640 | * The number of N_Ports with adisc issued. | |
3641 | **/ | |
dea3101e | 3642 | int |
2e0fef85 | 3643 | lpfc_els_disc_adisc(struct lpfc_vport *vport) |
dea3101e | 3644 | { |
2e0fef85 | 3645 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 3646 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 3647 | int sentadisc = 0; |
dea3101e | 3648 | |
685f0bf7 | 3649 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ |
2e0fef85 | 3650 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 JS |
3651 | if (!NLP_CHK_NODE_ACT(ndlp)) |
3652 | continue; | |
685f0bf7 JS |
3653 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
3654 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
3655 | (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) { | |
2e0fef85 | 3656 | spin_lock_irq(shost->host_lock); |
685f0bf7 | 3657 | ndlp->nlp_flag &= ~NLP_NPR_ADISC; |
2e0fef85 | 3658 | spin_unlock_irq(shost->host_lock); |
685f0bf7 | 3659 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3660 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
3661 | lpfc_issue_els_adisc(vport, ndlp, 0); | |
685f0bf7 | 3662 | sentadisc++; |
2e0fef85 JS |
3663 | vport->num_disc_nodes++; |
3664 | if (vport->num_disc_nodes >= | |
3de2a653 | 3665 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
3666 | spin_lock_irq(shost->host_lock); |
3667 | vport->fc_flag |= FC_NLP_MORE; | |
3668 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 3669 | break; |
dea3101e JB |
3670 | } |
3671 | } | |
3672 | } | |
3673 | if (sentadisc == 0) { | |
2e0fef85 JS |
3674 | spin_lock_irq(shost->host_lock); |
3675 | vport->fc_flag &= ~FC_NLP_MORE; | |
3676 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 3677 | } |
2fe165b6 | 3678 | return sentadisc; |
dea3101e JB |
3679 | } |
3680 | ||
e59058c4 JS |
3681 | /** |
3682 | * lpfc_els_disc_plogi: Issue plogi for all npr nodes of a vport before adisc. | |
3683 | * @vport: pointer to a host virtual N_Port data structure. | |
3684 | * | |
3685 | * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports | |
3686 | * which are in node port recovery state, with a @vport. Each time an ELS | |
3687 | * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine, | |
3688 | * the per @vport number of discover count (num_disc_nodes) shall be | |
3689 | * incremented. If the num_disc_nodes reaches a pre-configured threshold | |
3690 | * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE | |
3691 | * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for | |
3692 | * later pick up. On the other hand, after walking through all the ndlps with | |
3693 | * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag | |
3694 | * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC | |
3695 | * PLOGI need to be sent. | |
3696 | * | |
3697 | * Return code | |
3698 | * The number of N_Ports with plogi issued. | |
3699 | **/ | |
dea3101e | 3700 | int |
2e0fef85 | 3701 | lpfc_els_disc_plogi(struct lpfc_vport *vport) |
dea3101e | 3702 | { |
2e0fef85 | 3703 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 3704 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 3705 | int sentplogi = 0; |
dea3101e | 3706 | |
2e0fef85 JS |
3707 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ |
3708 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
3709 | if (!NLP_CHK_NODE_ACT(ndlp)) |
3710 | continue; | |
685f0bf7 JS |
3711 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
3712 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
3713 | (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 && | |
3714 | (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) { | |
3715 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
2e0fef85 JS |
3716 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
3717 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); | |
685f0bf7 | 3718 | sentplogi++; |
2e0fef85 JS |
3719 | vport->num_disc_nodes++; |
3720 | if (vport->num_disc_nodes >= | |
3de2a653 | 3721 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
3722 | spin_lock_irq(shost->host_lock); |
3723 | vport->fc_flag |= FC_NLP_MORE; | |
3724 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 3725 | break; |
dea3101e JB |
3726 | } |
3727 | } | |
3728 | } | |
87af33fe JS |
3729 | if (sentplogi) { |
3730 | lpfc_set_disctmo(vport); | |
3731 | } | |
3732 | else { | |
2e0fef85 JS |
3733 | spin_lock_irq(shost->host_lock); |
3734 | vport->fc_flag &= ~FC_NLP_MORE; | |
3735 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 3736 | } |
2fe165b6 | 3737 | return sentplogi; |
dea3101e JB |
3738 | } |
3739 | ||
e59058c4 JS |
3740 | /** |
3741 | * lpfc_els_flush_rscn: Clean up any rscn activities with a vport. | |
3742 | * @vport: pointer to a host virtual N_Port data structure. | |
3743 | * | |
3744 | * This routine cleans up any Registration State Change Notification | |
3745 | * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the | |
3746 | * @vport together with the host_lock is used to prevent multiple thread | |
3747 | * trying to access the RSCN array on a same @vport at the same time. | |
3748 | **/ | |
92d7f7b0 | 3749 | void |
2e0fef85 | 3750 | lpfc_els_flush_rscn(struct lpfc_vport *vport) |
dea3101e | 3751 | { |
2e0fef85 JS |
3752 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
3753 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
3754 | int i; |
3755 | ||
7f5f3d0d JS |
3756 | spin_lock_irq(shost->host_lock); |
3757 | if (vport->fc_rscn_flush) { | |
3758 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
3759 | spin_unlock_irq(shost->host_lock); | |
3760 | return; | |
3761 | } | |
3762 | /* Indicate we are walking lpfc_els_flush_rscn on this vport */ | |
3763 | vport->fc_rscn_flush = 1; | |
3764 | spin_unlock_irq(shost->host_lock); | |
3765 | ||
2e0fef85 | 3766 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 | 3767 | lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]); |
2e0fef85 | 3768 | vport->fc_rscn_id_list[i] = NULL; |
dea3101e | 3769 | } |
2e0fef85 JS |
3770 | spin_lock_irq(shost->host_lock); |
3771 | vport->fc_rscn_id_cnt = 0; | |
3772 | vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY); | |
3773 | spin_unlock_irq(shost->host_lock); | |
3774 | lpfc_can_disctmo(vport); | |
7f5f3d0d JS |
3775 | /* Indicate we are done walking this fc_rscn_id_list */ |
3776 | vport->fc_rscn_flush = 0; | |
dea3101e JB |
3777 | } |
3778 | ||
e59058c4 JS |
3779 | /** |
3780 | * lpfc_rscn_payload_check: Check whether there is a pending rscn to a did. | |
3781 | * @vport: pointer to a host virtual N_Port data structure. | |
3782 | * @did: remote destination port identifier. | |
3783 | * | |
3784 | * This routine checks whether there is any pending Registration State | |
3785 | * Configuration Notification (RSCN) to a @did on @vport. | |
3786 | * | |
3787 | * Return code | |
3788 | * None zero - The @did matched with a pending rscn | |
3789 | * 0 - not able to match @did with a pending rscn | |
3790 | **/ | |
dea3101e | 3791 | int |
2e0fef85 | 3792 | lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) |
dea3101e JB |
3793 | { |
3794 | D_ID ns_did; | |
3795 | D_ID rscn_did; | |
dea3101e | 3796 | uint32_t *lp; |
92d7f7b0 | 3797 | uint32_t payload_len, i; |
7f5f3d0d | 3798 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e JB |
3799 | |
3800 | ns_did.un.word = did; | |
dea3101e JB |
3801 | |
3802 | /* Never match fabric nodes for RSCNs */ | |
3803 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
2e0fef85 | 3804 | return 0; |
dea3101e JB |
3805 | |
3806 | /* If we are doing a FULL RSCN rediscovery, match everything */ | |
2e0fef85 | 3807 | if (vport->fc_flag & FC_RSCN_DISCOVERY) |
c9f8735b | 3808 | return did; |
dea3101e | 3809 | |
7f5f3d0d JS |
3810 | spin_lock_irq(shost->host_lock); |
3811 | if (vport->fc_rscn_flush) { | |
3812 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
3813 | spin_unlock_irq(shost->host_lock); | |
3814 | return 0; | |
3815 | } | |
3816 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
3817 | vport->fc_rscn_flush = 1; | |
3818 | spin_unlock_irq(shost->host_lock); | |
2e0fef85 | 3819 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 JS |
3820 | lp = vport->fc_rscn_id_list[i]->virt; |
3821 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); | |
3822 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 3823 | while (payload_len) { |
92d7f7b0 JS |
3824 | rscn_did.un.word = be32_to_cpu(*lp++); |
3825 | payload_len -= sizeof(uint32_t); | |
dea3101e JB |
3826 | switch (rscn_did.un.b.resv) { |
3827 | case 0: /* Single N_Port ID effected */ | |
2e0fef85 | 3828 | if (ns_did.un.word == rscn_did.un.word) |
7f5f3d0d | 3829 | goto return_did_out; |
dea3101e JB |
3830 | break; |
3831 | case 1: /* Whole N_Port Area effected */ | |
3832 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) | |
3833 | && (ns_did.un.b.area == rscn_did.un.b.area)) | |
7f5f3d0d | 3834 | goto return_did_out; |
dea3101e JB |
3835 | break; |
3836 | case 2: /* Whole N_Port Domain effected */ | |
3837 | if (ns_did.un.b.domain == rscn_did.un.b.domain) | |
7f5f3d0d | 3838 | goto return_did_out; |
dea3101e JB |
3839 | break; |
3840 | default: | |
2e0fef85 | 3841 | /* Unknown Identifier in RSCN node */ |
e8b62011 JS |
3842 | lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, |
3843 | "0217 Unknown Identifier in " | |
3844 | "RSCN payload Data: x%x\n", | |
3845 | rscn_did.un.word); | |
92d7f7b0 | 3846 | case 3: /* Whole Fabric effected */ |
7f5f3d0d | 3847 | goto return_did_out; |
dea3101e JB |
3848 | } |
3849 | } | |
92d7f7b0 | 3850 | } |
7f5f3d0d JS |
3851 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ |
3852 | vport->fc_rscn_flush = 0; | |
92d7f7b0 | 3853 | return 0; |
7f5f3d0d JS |
3854 | return_did_out: |
3855 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ | |
3856 | vport->fc_rscn_flush = 0; | |
3857 | return did; | |
dea3101e JB |
3858 | } |
3859 | ||
e59058c4 JS |
3860 | /** |
3861 | * lpfc_rscn_recovery_check: Send recovery event to vport nodes matching rscn | |
3862 | * @vport: pointer to a host virtual N_Port data structure. | |
3863 | * | |
3864 | * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the | |
3865 | * state machine for a @vport's nodes that are with pending RSCN (Registration | |
3866 | * State Change Notification). | |
3867 | * | |
3868 | * Return code | |
3869 | * 0 - Successful (currently alway return 0) | |
3870 | **/ | |
dea3101e | 3871 | static int |
2e0fef85 | 3872 | lpfc_rscn_recovery_check(struct lpfc_vport *vport) |
dea3101e | 3873 | { |
685f0bf7 | 3874 | struct lpfc_nodelist *ndlp = NULL; |
dea3101e | 3875 | |
0d2b6b83 | 3876 | /* Move all affected nodes by pending RSCNs to NPR state. */ |
2e0fef85 | 3877 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 | 3878 | if (!NLP_CHK_NODE_ACT(ndlp) || |
0d2b6b83 JS |
3879 | (ndlp->nlp_state == NLP_STE_UNUSED_NODE) || |
3880 | !lpfc_rscn_payload_check(vport, ndlp->nlp_DID)) | |
685f0bf7 | 3881 | continue; |
2e0fef85 | 3882 | lpfc_disc_state_machine(vport, ndlp, NULL, |
0d2b6b83 JS |
3883 | NLP_EVT_DEVICE_RECOVERY); |
3884 | lpfc_cancel_retry_delay_tmo(vport, ndlp); | |
dea3101e | 3885 | } |
c9f8735b | 3886 | return 0; |
dea3101e JB |
3887 | } |
3888 | ||
e59058c4 JS |
3889 | /** |
3890 | * lpfc_els_rcv_rscn: Process an unsolicited rscn iocb. | |
3891 | * @vport: pointer to a host virtual N_Port data structure. | |
3892 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3893 | * @ndlp: pointer to a node-list data structure. | |
3894 | * | |
3895 | * This routine processes an unsolicited RSCN (Registration State Change | |
3896 | * Notification) IOCB. First, the payload of the unsolicited RSCN is walked | |
3897 | * to invoke fc_host_post_event() routine to the FC transport layer. If the | |
3898 | * discover state machine is about to begin discovery, it just accepts the | |
3899 | * RSCN and the discovery process will satisfy the RSCN. If this RSCN only | |
3900 | * contains N_Port IDs for other vports on this HBA, it just accepts the | |
3901 | * RSCN and ignore processing it. If the state machine is in the recovery | |
3902 | * state, the fc_rscn_id_list of this @vport is walked and the | |
3903 | * lpfc_rscn_recovery_check() routine is invoked to send recovery event for | |
3904 | * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn() | |
3905 | * routine is invoked to handle the RSCN event. | |
3906 | * | |
3907 | * Return code | |
3908 | * 0 - Just sent the acc response | |
3909 | * 1 - Sent the acc response and waited for name server completion | |
3910 | **/ | |
dea3101e | 3911 | static int |
2e0fef85 | 3912 | lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 3913 | struct lpfc_nodelist *ndlp) |
dea3101e | 3914 | { |
2e0fef85 JS |
3915 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
3916 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 3917 | struct lpfc_dmabuf *pcmd; |
92d7f7b0 | 3918 | uint32_t *lp, *datap; |
dea3101e | 3919 | IOCB_t *icmd; |
92d7f7b0 | 3920 | uint32_t payload_len, length, nportid, *cmd; |
7f5f3d0d | 3921 | int rscn_cnt; |
92d7f7b0 | 3922 | int rscn_id = 0, hba_id = 0; |
d2873e4c | 3923 | int i; |
dea3101e JB |
3924 | |
3925 | icmd = &cmdiocb->iocb; | |
3926 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
3927 | lp = (uint32_t *) pcmd->virt; | |
3928 | ||
92d7f7b0 JS |
3929 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); |
3930 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 3931 | /* RSCN received */ |
e8b62011 JS |
3932 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
3933 | "0214 RSCN received Data: x%x x%x x%x x%x\n", | |
7f5f3d0d JS |
3934 | vport->fc_flag, payload_len, *lp, |
3935 | vport->fc_rscn_id_cnt); | |
d2873e4c | 3936 | for (i = 0; i < payload_len/sizeof(uint32_t); i++) |
2e0fef85 | 3937 | fc_host_post_event(shost, fc_get_event_number(), |
d2873e4c JS |
3938 | FCH_EVT_RSCN, lp[i]); |
3939 | ||
dea3101e JB |
3940 | /* If we are about to begin discovery, just ACC the RSCN. |
3941 | * Discovery processing will satisfy it. | |
3942 | */ | |
2e0fef85 | 3943 | if (vport->port_state <= LPFC_NS_QRY) { |
858c9f6c JS |
3944 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
3945 | "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x", | |
3946 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
3947 | ||
51ef4c26 | 3948 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
c9f8735b | 3949 | return 0; |
dea3101e JB |
3950 | } |
3951 | ||
92d7f7b0 JS |
3952 | /* If this RSCN just contains NPortIDs for other vports on this HBA, |
3953 | * just ACC and ignore it. | |
3954 | */ | |
3955 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
3de2a653 | 3956 | !(vport->cfg_peer_port_login)) { |
92d7f7b0 JS |
3957 | i = payload_len; |
3958 | datap = lp; | |
3959 | while (i > 0) { | |
3960 | nportid = *datap++; | |
3961 | nportid = ((be32_to_cpu(nportid)) & Mask_DID); | |
3962 | i -= sizeof(uint32_t); | |
3963 | rscn_id++; | |
549e55cd JS |
3964 | if (lpfc_find_vport_by_did(phba, nportid)) |
3965 | hba_id++; | |
92d7f7b0 JS |
3966 | } |
3967 | if (rscn_id == hba_id) { | |
3968 | /* ALL NPortIDs in RSCN are on HBA */ | |
e8b62011 | 3969 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
d7c255b2 | 3970 | "0219 Ignore RSCN " |
e8b62011 JS |
3971 | "Data: x%x x%x x%x x%x\n", |
3972 | vport->fc_flag, payload_len, | |
7f5f3d0d | 3973 | *lp, vport->fc_rscn_id_cnt); |
858c9f6c JS |
3974 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
3975 | "RCV RSCN vport: did:x%x/ste:x%x flg:x%x", | |
3976 | ndlp->nlp_DID, vport->port_state, | |
3977 | ndlp->nlp_flag); | |
3978 | ||
92d7f7b0 | 3979 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, |
51ef4c26 | 3980 | ndlp, NULL); |
92d7f7b0 JS |
3981 | return 0; |
3982 | } | |
3983 | } | |
3984 | ||
7f5f3d0d JS |
3985 | spin_lock_irq(shost->host_lock); |
3986 | if (vport->fc_rscn_flush) { | |
3987 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
3988 | spin_unlock_irq(shost->host_lock); | |
3989 | vport->fc_flag |= FC_RSCN_DISCOVERY; | |
58da1ffb JS |
3990 | /* Send back ACC */ |
3991 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
7f5f3d0d JS |
3992 | return 0; |
3993 | } | |
3994 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
3995 | vport->fc_rscn_flush = 1; | |
3996 | spin_unlock_irq(shost->host_lock); | |
3997 | /* Get the array count after sucessfully have the token */ | |
3998 | rscn_cnt = vport->fc_rscn_id_cnt; | |
dea3101e JB |
3999 | /* If we are already processing an RSCN, save the received |
4000 | * RSCN payload buffer, cmdiocb->context2 to process later. | |
4001 | */ | |
2e0fef85 | 4002 | if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) { |
858c9f6c JS |
4003 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4004 | "RCV RSCN defer: did:x%x/ste:x%x flg:x%x", | |
4005 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4006 | ||
09372820 | 4007 | spin_lock_irq(shost->host_lock); |
92d7f7b0 JS |
4008 | vport->fc_flag |= FC_RSCN_DEFERRED; |
4009 | if ((rscn_cnt < FC_MAX_HOLD_RSCN) && | |
2e0fef85 | 4010 | !(vport->fc_flag & FC_RSCN_DISCOVERY)) { |
2e0fef85 JS |
4011 | vport->fc_flag |= FC_RSCN_MODE; |
4012 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
4013 | if (rscn_cnt) { |
4014 | cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt; | |
4015 | length = be32_to_cpu(*cmd & ~ELS_CMD_MASK); | |
4016 | } | |
4017 | if ((rscn_cnt) && | |
4018 | (payload_len + length <= LPFC_BPL_SIZE)) { | |
4019 | *cmd &= ELS_CMD_MASK; | |
7f5f3d0d | 4020 | *cmd |= cpu_to_be32(payload_len + length); |
92d7f7b0 JS |
4021 | memcpy(((uint8_t *)cmd) + length, lp, |
4022 | payload_len); | |
4023 | } else { | |
4024 | vport->fc_rscn_id_list[rscn_cnt] = pcmd; | |
4025 | vport->fc_rscn_id_cnt++; | |
4026 | /* If we zero, cmdiocb->context2, the calling | |
4027 | * routine will not try to free it. | |
4028 | */ | |
4029 | cmdiocb->context2 = NULL; | |
4030 | } | |
dea3101e | 4031 | /* Deferred RSCN */ |
e8b62011 JS |
4032 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4033 | "0235 Deferred RSCN " | |
4034 | "Data: x%x x%x x%x\n", | |
4035 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4036 | vport->port_state); | |
dea3101e | 4037 | } else { |
2e0fef85 JS |
4038 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
4039 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4040 | /* ReDiscovery RSCN */ |
e8b62011 JS |
4041 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4042 | "0234 ReDiscovery RSCN " | |
4043 | "Data: x%x x%x x%x\n", | |
4044 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4045 | vport->port_state); | |
dea3101e | 4046 | } |
7f5f3d0d JS |
4047 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4048 | vport->fc_rscn_flush = 0; | |
dea3101e | 4049 | /* Send back ACC */ |
51ef4c26 | 4050 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4051 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4052 | lpfc_rscn_recovery_check(vport); |
09372820 | 4053 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 4054 | vport->fc_flag &= ~FC_RSCN_DEFERRED; |
09372820 | 4055 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 4056 | return 0; |
dea3101e | 4057 | } |
858c9f6c JS |
4058 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4059 | "RCV RSCN: did:x%x/ste:x%x flg:x%x", | |
4060 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4061 | ||
2e0fef85 JS |
4062 | spin_lock_irq(shost->host_lock); |
4063 | vport->fc_flag |= FC_RSCN_MODE; | |
4064 | spin_unlock_irq(shost->host_lock); | |
4065 | vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd; | |
7f5f3d0d JS |
4066 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4067 | vport->fc_rscn_flush = 0; | |
dea3101e JB |
4068 | /* |
4069 | * If we zero, cmdiocb->context2, the calling routine will | |
4070 | * not try to free it. | |
4071 | */ | |
4072 | cmdiocb->context2 = NULL; | |
2e0fef85 | 4073 | lpfc_set_disctmo(vport); |
dea3101e | 4074 | /* Send back ACC */ |
51ef4c26 | 4075 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4076 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4077 | lpfc_rscn_recovery_check(vport); |
2e0fef85 | 4078 | return lpfc_els_handle_rscn(vport); |
dea3101e JB |
4079 | } |
4080 | ||
e59058c4 JS |
4081 | /** |
4082 | * lpfc_els_handle_rscn: Handle rscn for a vport. | |
4083 | * @vport: pointer to a host virtual N_Port data structure. | |
4084 | * | |
4085 | * This routine handles the Registration State Configuration Notification | |
4086 | * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall | |
4087 | * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise, | |
4088 | * if the ndlp to NameServer exists, a Common Transport (CT) command to the | |
4089 | * NameServer shall be issued. If CT command to the NameServer fails to be | |
4090 | * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any | |
4091 | * RSCN activities with the @vport. | |
4092 | * | |
4093 | * Return code | |
4094 | * 0 - Cleaned up rscn on the @vport | |
4095 | * 1 - Wait for plogi to name server before proceed | |
4096 | **/ | |
dea3101e | 4097 | int |
2e0fef85 | 4098 | lpfc_els_handle_rscn(struct lpfc_vport *vport) |
dea3101e JB |
4099 | { |
4100 | struct lpfc_nodelist *ndlp; | |
2e0fef85 | 4101 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4102 | |
92d7f7b0 JS |
4103 | /* Ignore RSCN if the port is being torn down. */ |
4104 | if (vport->load_flag & FC_UNLOADING) { | |
4105 | lpfc_els_flush_rscn(vport); | |
4106 | return 0; | |
4107 | } | |
4108 | ||
dea3101e | 4109 | /* Start timer for RSCN processing */ |
2e0fef85 | 4110 | lpfc_set_disctmo(vport); |
dea3101e JB |
4111 | |
4112 | /* RSCN processed */ | |
e8b62011 JS |
4113 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4114 | "0215 RSCN processed Data: x%x x%x x%x x%x\n", | |
4115 | vport->fc_flag, 0, vport->fc_rscn_id_cnt, | |
4116 | vport->port_state); | |
dea3101e JB |
4117 | |
4118 | /* To process RSCN, first compare RSCN data with NameServer */ | |
2e0fef85 | 4119 | vport->fc_ns_retry = 0; |
0ff10d46 JS |
4120 | vport->num_disc_nodes = 0; |
4121 | ||
2e0fef85 | 4122 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 JS |
4123 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
4124 | && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { | |
dea3101e | 4125 | /* Good ndlp, issue CT Request to NameServer */ |
92d7f7b0 | 4126 | if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0) |
dea3101e JB |
4127 | /* Wait for NameServer query cmpl before we can |
4128 | continue */ | |
c9f8735b | 4129 | return 1; |
dea3101e JB |
4130 | } else { |
4131 | /* If login to NameServer does not exist, issue one */ | |
4132 | /* Good status, issue PLOGI to NameServer */ | |
2e0fef85 | 4133 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 | 4134 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
dea3101e JB |
4135 | /* Wait for NameServer login cmpl before we can |
4136 | continue */ | |
c9f8735b | 4137 | return 1; |
2e0fef85 | 4138 | |
e47c9093 JS |
4139 | if (ndlp) { |
4140 | ndlp = lpfc_enable_node(vport, ndlp, | |
4141 | NLP_STE_PLOGI_ISSUE); | |
4142 | if (!ndlp) { | |
4143 | lpfc_els_flush_rscn(vport); | |
4144 | return 0; | |
4145 | } | |
4146 | ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; | |
dea3101e | 4147 | } else { |
e47c9093 JS |
4148 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
4149 | if (!ndlp) { | |
4150 | lpfc_els_flush_rscn(vport); | |
4151 | return 0; | |
4152 | } | |
2e0fef85 | 4153 | lpfc_nlp_init(vport, ndlp, NameServer_DID); |
5024ab17 | 4154 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 4155 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
dea3101e | 4156 | } |
e47c9093 JS |
4157 | ndlp->nlp_type |= NLP_FABRIC; |
4158 | lpfc_issue_els_plogi(vport, NameServer_DID, 0); | |
4159 | /* Wait for NameServer login cmpl before we can | |
4160 | * continue | |
4161 | */ | |
4162 | return 1; | |
dea3101e JB |
4163 | } |
4164 | ||
2e0fef85 | 4165 | lpfc_els_flush_rscn(vport); |
c9f8735b | 4166 | return 0; |
dea3101e JB |
4167 | } |
4168 | ||
e59058c4 JS |
4169 | /** |
4170 | * lpfc_els_rcv_flogi: Process an unsolicited flogi iocb. | |
4171 | * @vport: pointer to a host virtual N_Port data structure. | |
4172 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4173 | * @ndlp: pointer to a node-list data structure. | |
4174 | * | |
4175 | * This routine processes Fabric Login (FLOGI) IOCB received as an ELS | |
4176 | * unsolicited event. An unsolicited FLOGI can be received in a point-to- | |
4177 | * point topology. As an unsolicited FLOGI should not be received in a loop | |
4178 | * mode, any unsolicited FLOGI received in loop mode shall be ignored. The | |
4179 | * lpfc_check_sparm() routine is invoked to check the parameters in the | |
4180 | * unsolicited FLOGI. If parameters validation failed, the routine | |
4181 | * lpfc_els_rsp_reject() shall be called with reject reason code set to | |
4182 | * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the | |
4183 | * FLOGI shall be compared with the Port WWN of the @vport to determine who | |
4184 | * will initiate PLOGI. The higher lexicographical value party shall has | |
4185 | * higher priority (as the winning port) and will initiate PLOGI and | |
4186 | * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result | |
4187 | * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI | |
4188 | * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI. | |
4189 | * | |
4190 | * Return code | |
4191 | * 0 - Successfully processed the unsolicited flogi | |
4192 | * 1 - Failed to process the unsolicited flogi | |
4193 | **/ | |
dea3101e | 4194 | static int |
2e0fef85 | 4195 | lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 4196 | struct lpfc_nodelist *ndlp) |
dea3101e | 4197 | { |
2e0fef85 JS |
4198 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4199 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
4200 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
4201 | uint32_t *lp = (uint32_t *) pcmd->virt; | |
4202 | IOCB_t *icmd = &cmdiocb->iocb; | |
4203 | struct serv_parm *sp; | |
4204 | LPFC_MBOXQ_t *mbox; | |
4205 | struct ls_rjt stat; | |
4206 | uint32_t cmd, did; | |
4207 | int rc; | |
4208 | ||
4209 | cmd = *lp++; | |
4210 | sp = (struct serv_parm *) lp; | |
4211 | ||
4212 | /* FLOGI received */ | |
4213 | ||
2e0fef85 | 4214 | lpfc_set_disctmo(vport); |
dea3101e JB |
4215 | |
4216 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
4217 | /* We should never receive a FLOGI in loop mode, ignore it */ | |
4218 | did = icmd->un.elsreq64.remoteID; | |
4219 | ||
4220 | /* An FLOGI ELS command <elsCmd> was received from DID <did> in | |
4221 | Loop Mode */ | |
e8b62011 JS |
4222 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
4223 | "0113 An FLOGI ELS command x%x was " | |
4224 | "received from DID x%x in Loop Mode\n", | |
4225 | cmd, did); | |
c9f8735b | 4226 | return 1; |
dea3101e JB |
4227 | } |
4228 | ||
4229 | did = Fabric_DID; | |
4230 | ||
2e0fef85 | 4231 | if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3))) { |
dea3101e JB |
4232 | /* For a FLOGI we accept, then if our portname is greater |
4233 | * then the remote portname we initiate Nport login. | |
4234 | */ | |
4235 | ||
2e0fef85 | 4236 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 4237 | sizeof(struct lpfc_name)); |
dea3101e JB |
4238 | |
4239 | if (!rc) { | |
2e0fef85 JS |
4240 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
4241 | if (!mbox) | |
c9f8735b | 4242 | return 1; |
2e0fef85 | 4243 | |
dea3101e JB |
4244 | lpfc_linkdown(phba); |
4245 | lpfc_init_link(phba, mbox, | |
4246 | phba->cfg_topology, | |
4247 | phba->cfg_link_speed); | |
4248 | mbox->mb.un.varInitLnk.lipsr_AL_PA = 0; | |
4249 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
ed957684 | 4250 | mbox->vport = vport; |
0b727fea | 4251 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
5b8bd0c9 | 4252 | lpfc_set_loopback_flag(phba); |
dea3101e | 4253 | if (rc == MBX_NOT_FINISHED) { |
329f9bc7 | 4254 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 4255 | } |
c9f8735b | 4256 | return 1; |
2fe165b6 | 4257 | } else if (rc > 0) { /* greater than */ |
2e0fef85 JS |
4258 | spin_lock_irq(shost->host_lock); |
4259 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
4260 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4261 | } |
2e0fef85 JS |
4262 | spin_lock_irq(shost->host_lock); |
4263 | vport->fc_flag |= FC_PT2PT; | |
4264 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
4265 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
4266 | } else { |
4267 | /* Reject this request because invalid parameters */ | |
4268 | stat.un.b.lsRjtRsvd0 = 0; | |
4269 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4270 | stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; | |
4271 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4272 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4273 | NULL); | |
c9f8735b | 4274 | return 1; |
dea3101e JB |
4275 | } |
4276 | ||
4277 | /* Send back ACC */ | |
51ef4c26 | 4278 | lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL); |
dea3101e | 4279 | |
c9f8735b | 4280 | return 0; |
dea3101e JB |
4281 | } |
4282 | ||
e59058c4 JS |
4283 | /** |
4284 | * lpfc_els_rcv_rnid: Process an unsolicited rnid iocb. | |
4285 | * @vport: pointer to a host virtual N_Port data structure. | |
4286 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4287 | * @ndlp: pointer to a node-list data structure. | |
4288 | * | |
4289 | * This routine processes Request Node Identification Data (RNID) IOCB | |
4290 | * received as an ELS unsolicited event. Only when the RNID specified format | |
4291 | * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data) | |
4292 | * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to | |
4293 | * Accept (ACC) the RNID ELS command. All the other RNID formats are | |
4294 | * rejected by invoking the lpfc_els_rsp_reject() routine. | |
4295 | * | |
4296 | * Return code | |
4297 | * 0 - Successfully processed rnid iocb (currently always return 0) | |
4298 | **/ | |
dea3101e | 4299 | static int |
2e0fef85 JS |
4300 | lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4301 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
4302 | { |
4303 | struct lpfc_dmabuf *pcmd; | |
4304 | uint32_t *lp; | |
4305 | IOCB_t *icmd; | |
4306 | RNID *rn; | |
4307 | struct ls_rjt stat; | |
4308 | uint32_t cmd, did; | |
4309 | ||
4310 | icmd = &cmdiocb->iocb; | |
4311 | did = icmd->un.elsreq64.remoteID; | |
4312 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4313 | lp = (uint32_t *) pcmd->virt; | |
4314 | ||
4315 | cmd = *lp++; | |
4316 | rn = (RNID *) lp; | |
4317 | ||
4318 | /* RNID received */ | |
4319 | ||
4320 | switch (rn->Format) { | |
4321 | case 0: | |
4322 | case RNID_TOPOLOGY_DISC: | |
4323 | /* Send back ACC */ | |
2e0fef85 | 4324 | lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp); |
dea3101e JB |
4325 | break; |
4326 | default: | |
4327 | /* Reject this request because format not supported */ | |
4328 | stat.un.b.lsRjtRsvd0 = 0; | |
4329 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4330 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4331 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4332 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4333 | NULL); | |
dea3101e | 4334 | } |
c9f8735b | 4335 | return 0; |
dea3101e JB |
4336 | } |
4337 | ||
e59058c4 JS |
4338 | /** |
4339 | * lpfc_els_rcv_lirr: Process an unsolicited lirr iocb. | |
4340 | * @vport: pointer to a host virtual N_Port data structure. | |
4341 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4342 | * @ndlp: pointer to a node-list data structure. | |
4343 | * | |
4344 | * This routine processes a Link Incident Report Registration(LIRR) IOCB | |
4345 | * received as an ELS unsolicited event. Currently, this function just invokes | |
4346 | * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally. | |
4347 | * | |
4348 | * Return code | |
4349 | * 0 - Successfully processed lirr iocb (currently always return 0) | |
4350 | **/ | |
dea3101e | 4351 | static int |
2e0fef85 JS |
4352 | lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4353 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
4354 | { |
4355 | struct ls_rjt stat; | |
4356 | ||
4357 | /* For now, unconditionally reject this command */ | |
4358 | stat.un.b.lsRjtRsvd0 = 0; | |
4359 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4360 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4361 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 4362 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
4363 | return 0; |
4364 | } | |
4365 | ||
e59058c4 JS |
4366 | /** |
4367 | * lpfc_els_rsp_rps_acc: Completion callbk func for MBX_READ_LNK_STAT mbox cmd. | |
4368 | * @phba: pointer to lpfc hba data structure. | |
4369 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
4370 | * | |
4371 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
4372 | * mailbox command. This callback function is to actually send the Accept | |
4373 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
4374 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
4375 | * mailbox command, constructs the RPS response with the link statistics | |
4376 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
4377 | * response to the RPS. | |
4378 | * | |
4379 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4380 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4381 | * will be stored into the context1 field of the IOCB for the completion | |
4382 | * callback function to the RPS Accept Response ELS IOCB command. | |
4383 | * | |
4384 | **/ | |
082c0266 | 4385 | static void |
329f9bc7 | 4386 | lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
7bb3b137 | 4387 | { |
2e0fef85 JS |
4388 | struct lpfc_sli *psli = &phba->sli; |
4389 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; | |
7bb3b137 JW |
4390 | MAILBOX_t *mb; |
4391 | IOCB_t *icmd; | |
4392 | RPS_RSP *rps_rsp; | |
4393 | uint8_t *pcmd; | |
4394 | struct lpfc_iocbq *elsiocb; | |
4395 | struct lpfc_nodelist *ndlp; | |
4396 | uint16_t xri, status; | |
4397 | uint32_t cmdsize; | |
4398 | ||
7bb3b137 JW |
4399 | mb = &pmb->mb; |
4400 | ||
4401 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
4402 | xri = (uint16_t) ((unsigned long)(pmb->context1)); | |
041976fb RD |
4403 | pmb->context1 = NULL; |
4404 | pmb->context2 = NULL; | |
7bb3b137 JW |
4405 | |
4406 | if (mb->mbxStatus) { | |
329f9bc7 | 4407 | mempool_free(pmb, phba->mbox_mem_pool); |
7bb3b137 JW |
4408 | return; |
4409 | } | |
4410 | ||
4411 | cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t); | |
329f9bc7 | 4412 | mempool_free(pmb, phba->mbox_mem_pool); |
2e0fef85 JS |
4413 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, |
4414 | lpfc_max_els_tries, ndlp, | |
4415 | ndlp->nlp_DID, ELS_CMD_ACC); | |
fa4066b6 JS |
4416 | |
4417 | /* Decrement the ndlp reference count from previous mbox command */ | |
329f9bc7 | 4418 | lpfc_nlp_put(ndlp); |
fa4066b6 | 4419 | |
c9f8735b | 4420 | if (!elsiocb) |
7bb3b137 | 4421 | return; |
7bb3b137 JW |
4422 | |
4423 | icmd = &elsiocb->iocb; | |
4424 | icmd->ulpContext = xri; | |
4425 | ||
4426 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
4427 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 4428 | pcmd += sizeof(uint32_t); /* Skip past command */ |
7bb3b137 JW |
4429 | rps_rsp = (RPS_RSP *)pcmd; |
4430 | ||
4431 | if (phba->fc_topology != TOPOLOGY_LOOP) | |
4432 | status = 0x10; | |
4433 | else | |
4434 | status = 0x8; | |
2e0fef85 | 4435 | if (phba->pport->fc_flag & FC_FABRIC) |
7bb3b137 JW |
4436 | status |= 0x4; |
4437 | ||
4438 | rps_rsp->rsvd1 = 0; | |
09372820 JS |
4439 | rps_rsp->portStatus = cpu_to_be16(status); |
4440 | rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
4441 | rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
4442 | rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
4443 | rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
4444 | rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
4445 | rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
7bb3b137 | 4446 | /* Xmit ELS RPS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4447 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, |
4448 | "0118 Xmit ELS RPS ACC response tag x%x xri x%x, " | |
4449 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
4450 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
4451 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
4452 | ndlp->nlp_rpi); | |
858c9f6c | 4453 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 4454 | phba->fc_stat.elsXmitACC++; |
ed957684 | 4455 | if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) |
7bb3b137 | 4456 | lpfc_els_free_iocb(phba, elsiocb); |
7bb3b137 JW |
4457 | return; |
4458 | } | |
4459 | ||
e59058c4 JS |
4460 | /** |
4461 | * lpfc_els_rcv_rps: Process an unsolicited rps iocb. | |
4462 | * @vport: pointer to a host virtual N_Port data structure. | |
4463 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4464 | * @ndlp: pointer to a node-list data structure. | |
4465 | * | |
4466 | * This routine processes Read Port Status (RPS) IOCB received as an | |
4467 | * ELS unsolicited event. It first checks the remote port state. If the | |
4468 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
4469 | * state, it invokes the lpfc_els_rsp_reject() routine to send the reject | |
4470 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
4471 | * for reading the HBA link statistics. It is for the callback function, | |
4472 | * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
4473 | * to actually sending out RPS Accept (ACC) response. | |
4474 | * | |
4475 | * Return codes | |
4476 | * 0 - Successfully processed rps iocb (currently always return 0) | |
4477 | **/ | |
7bb3b137 | 4478 | static int |
2e0fef85 JS |
4479 | lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4480 | struct lpfc_nodelist *ndlp) | |
dea3101e | 4481 | { |
2e0fef85 | 4482 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4483 | uint32_t *lp; |
7bb3b137 JW |
4484 | uint8_t flag; |
4485 | LPFC_MBOXQ_t *mbox; | |
4486 | struct lpfc_dmabuf *pcmd; | |
4487 | RPS *rps; | |
4488 | struct ls_rjt stat; | |
4489 | ||
2fe165b6 | 4490 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
90160e01 JS |
4491 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) |
4492 | /* reject the unsolicited RPS request and done with it */ | |
4493 | goto reject_out; | |
7bb3b137 JW |
4494 | |
4495 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4496 | lp = (uint32_t *) pcmd->virt; | |
4497 | flag = (be32_to_cpu(*lp++) & 0xf); | |
4498 | rps = (RPS *) lp; | |
4499 | ||
4500 | if ((flag == 0) || | |
4501 | ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) || | |
2e0fef85 | 4502 | ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname, |
92d7f7b0 | 4503 | sizeof(struct lpfc_name)) == 0))) { |
2e0fef85 | 4504 | |
92d7f7b0 JS |
4505 | printk("Fix me....\n"); |
4506 | dump_stack(); | |
2e0fef85 JS |
4507 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); |
4508 | if (mbox) { | |
7bb3b137 JW |
4509 | lpfc_read_lnk_stat(phba, mbox); |
4510 | mbox->context1 = | |
92d7f7b0 | 4511 | (void *)((unsigned long) cmdiocb->iocb.ulpContext); |
329f9bc7 | 4512 | mbox->context2 = lpfc_nlp_get(ndlp); |
92d7f7b0 | 4513 | mbox->vport = vport; |
7bb3b137 | 4514 | mbox->mbox_cmpl = lpfc_els_rsp_rps_acc; |
fa4066b6 | 4515 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
0b727fea | 4516 | != MBX_NOT_FINISHED) |
7bb3b137 JW |
4517 | /* Mbox completion will send ELS Response */ |
4518 | return 0; | |
fa4066b6 JS |
4519 | /* Decrement reference count used for the failed mbox |
4520 | * command. | |
4521 | */ | |
329f9bc7 | 4522 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
4523 | mempool_free(mbox, phba->mbox_mem_pool); |
4524 | } | |
4525 | } | |
90160e01 JS |
4526 | |
4527 | reject_out: | |
4528 | /* issue rejection response */ | |
7bb3b137 JW |
4529 | stat.un.b.lsRjtRsvd0 = 0; |
4530 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4531 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4532 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 4533 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
4534 | return 0; |
4535 | } | |
4536 | ||
e59058c4 JS |
4537 | /** |
4538 | * lpfc_els_rsp_rpl_acc: Issue an accept rpl els command. | |
4539 | * @vport: pointer to a host virtual N_Port data structure. | |
4540 | * @cmdsize: size of the ELS command. | |
4541 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4542 | * @ndlp: pointer to a node-list data structure. | |
4543 | * | |
4544 | * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command. | |
4545 | * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL. | |
4546 | * | |
4547 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4548 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4549 | * will be stored into the context1 field of the IOCB for the completion | |
4550 | * callback function to the RPL Accept Response ELS command. | |
4551 | * | |
4552 | * Return code | |
4553 | * 0 - Successfully issued ACC RPL ELS command | |
4554 | * 1 - Failed to issue ACC RPL ELS command | |
4555 | **/ | |
082c0266 | 4556 | static int |
2e0fef85 JS |
4557 | lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, |
4558 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
7bb3b137 | 4559 | { |
2e0fef85 JS |
4560 | struct lpfc_hba *phba = vport->phba; |
4561 | IOCB_t *icmd, *oldcmd; | |
7bb3b137 JW |
4562 | RPL_RSP rpl_rsp; |
4563 | struct lpfc_iocbq *elsiocb; | |
2e0fef85 JS |
4564 | struct lpfc_sli *psli = &phba->sli; |
4565 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; | |
7bb3b137 | 4566 | uint8_t *pcmd; |
dea3101e | 4567 | |
2e0fef85 JS |
4568 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
4569 | ndlp->nlp_DID, ELS_CMD_ACC); | |
7bb3b137 | 4570 | |
488d1469 | 4571 | if (!elsiocb) |
7bb3b137 | 4572 | return 1; |
488d1469 | 4573 | |
7bb3b137 JW |
4574 | icmd = &elsiocb->iocb; |
4575 | oldcmd = &oldiocb->iocb; | |
4576 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
4577 | ||
4578 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
4579 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 4580 | pcmd += sizeof(uint16_t); |
7bb3b137 JW |
4581 | *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize); |
4582 | pcmd += sizeof(uint16_t); | |
4583 | ||
4584 | /* Setup the RPL ACC payload */ | |
4585 | rpl_rsp.listLen = be32_to_cpu(1); | |
4586 | rpl_rsp.index = 0; | |
4587 | rpl_rsp.port_num_blk.portNum = 0; | |
2e0fef85 JS |
4588 | rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID); |
4589 | memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname, | |
7bb3b137 | 4590 | sizeof(struct lpfc_name)); |
7bb3b137 | 4591 | memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t)); |
7bb3b137 | 4592 | /* Xmit ELS RPL ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4593 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4594 | "0120 Xmit ELS RPL ACC response tag x%x " | |
4595 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
4596 | "rpi x%x\n", | |
4597 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
4598 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
4599 | ndlp->nlp_rpi); | |
858c9f6c | 4600 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 JW |
4601 | phba->fc_stat.elsXmitACC++; |
4602 | if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { | |
4603 | lpfc_els_free_iocb(phba, elsiocb); | |
4604 | return 1; | |
4605 | } | |
4606 | return 0; | |
4607 | } | |
4608 | ||
e59058c4 JS |
4609 | /** |
4610 | * lpfc_els_rcv_rpl: Process an unsolicited rpl iocb. | |
4611 | * @vport: pointer to a host virtual N_Port data structure. | |
4612 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4613 | * @ndlp: pointer to a node-list data structure. | |
4614 | * | |
4615 | * This routine processes Read Port List (RPL) IOCB received as an ELS | |
4616 | * unsolicited event. It first checks the remote port state. If the remote | |
4617 | * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it | |
4618 | * invokes the lpfc_els_rsp_reject() routine to send reject response. | |
4619 | * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine | |
4620 | * to accept the RPL. | |
4621 | * | |
4622 | * Return code | |
4623 | * 0 - Successfully processed rpl iocb (currently always return 0) | |
4624 | **/ | |
7bb3b137 | 4625 | static int |
2e0fef85 JS |
4626 | lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4627 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
4628 | { |
4629 | struct lpfc_dmabuf *pcmd; | |
4630 | uint32_t *lp; | |
4631 | uint32_t maxsize; | |
4632 | uint16_t cmdsize; | |
4633 | RPL *rpl; | |
4634 | struct ls_rjt stat; | |
4635 | ||
2fe165b6 JW |
4636 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
4637 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { | |
90160e01 | 4638 | /* issue rejection response */ |
7bb3b137 JW |
4639 | stat.un.b.lsRjtRsvd0 = 0; |
4640 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4641 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4642 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4643 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4644 | NULL); | |
90160e01 JS |
4645 | /* rejected the unsolicited RPL request and done with it */ |
4646 | return 0; | |
7bb3b137 JW |
4647 | } |
4648 | ||
dea3101e JB |
4649 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
4650 | lp = (uint32_t *) pcmd->virt; | |
7bb3b137 | 4651 | rpl = (RPL *) (lp + 1); |
dea3101e | 4652 | |
7bb3b137 | 4653 | maxsize = be32_to_cpu(rpl->maxsize); |
dea3101e | 4654 | |
7bb3b137 JW |
4655 | /* We support only one port */ |
4656 | if ((rpl->index == 0) && | |
4657 | ((maxsize == 0) || | |
4658 | ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) { | |
4659 | cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP); | |
2fe165b6 | 4660 | } else { |
7bb3b137 JW |
4661 | cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t); |
4662 | } | |
2e0fef85 | 4663 | lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp); |
dea3101e JB |
4664 | |
4665 | return 0; | |
4666 | } | |
4667 | ||
e59058c4 JS |
4668 | /** |
4669 | * lpfc_els_rcv_farp: Process an unsolicited farp request els command. | |
4670 | * @vport: pointer to a virtual N_Port data structure. | |
4671 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4672 | * @ndlp: pointer to a node-list data structure. | |
4673 | * | |
4674 | * This routine processes Fibre Channel Address Resolution Protocol | |
4675 | * (FARP) Request IOCB received as an ELS unsolicited event. Currently, | |
4676 | * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such, | |
4677 | * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the | |
4678 | * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the | |
4679 | * remote PortName is compared against the FC PortName stored in the @vport | |
4680 | * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is | |
4681 | * compared against the FC NodeName stored in the @vport data structure. | |
4682 | * If any of these matches and the FARP_REQUEST_FARPR flag is set in the | |
4683 | * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is | |
4684 | * invoked to send out FARP Response to the remote node. Before sending the | |
4685 | * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP | |
4686 | * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi() | |
4687 | * routine is invoked to log into the remote port first. | |
4688 | * | |
4689 | * Return code | |
4690 | * 0 - Either the FARP Match Mode not supported or successfully processed | |
4691 | **/ | |
dea3101e | 4692 | static int |
2e0fef85 JS |
4693 | lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4694 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
4695 | { |
4696 | struct lpfc_dmabuf *pcmd; | |
4697 | uint32_t *lp; | |
4698 | IOCB_t *icmd; | |
4699 | FARP *fp; | |
4700 | uint32_t cmd, cnt, did; | |
4701 | ||
4702 | icmd = &cmdiocb->iocb; | |
4703 | did = icmd->un.elsreq64.remoteID; | |
4704 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4705 | lp = (uint32_t *) pcmd->virt; | |
4706 | ||
4707 | cmd = *lp++; | |
4708 | fp = (FARP *) lp; | |
dea3101e | 4709 | /* FARP-REQ received from DID <did> */ |
e8b62011 JS |
4710 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4711 | "0601 FARP-REQ received from DID x%x\n", did); | |
dea3101e JB |
4712 | /* We will only support match on WWPN or WWNN */ |
4713 | if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { | |
c9f8735b | 4714 | return 0; |
dea3101e JB |
4715 | } |
4716 | ||
4717 | cnt = 0; | |
4718 | /* If this FARP command is searching for my portname */ | |
4719 | if (fp->Mflags & FARP_MATCH_PORT) { | |
2e0fef85 | 4720 | if (memcmp(&fp->RportName, &vport->fc_portname, |
92d7f7b0 | 4721 | sizeof(struct lpfc_name)) == 0) |
dea3101e JB |
4722 | cnt = 1; |
4723 | } | |
4724 | ||
4725 | /* If this FARP command is searching for my nodename */ | |
4726 | if (fp->Mflags & FARP_MATCH_NODE) { | |
2e0fef85 | 4727 | if (memcmp(&fp->RnodeName, &vport->fc_nodename, |
92d7f7b0 | 4728 | sizeof(struct lpfc_name)) == 0) |
dea3101e JB |
4729 | cnt = 1; |
4730 | } | |
4731 | ||
4732 | if (cnt) { | |
4733 | if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || | |
4734 | (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { | |
4735 | /* Log back into the node before sending the FARP. */ | |
4736 | if (fp->Rflags & FARP_REQUEST_PLOGI) { | |
5024ab17 | 4737 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 4738 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 4739 | NLP_STE_PLOGI_ISSUE); |
2e0fef85 | 4740 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); |
dea3101e JB |
4741 | } |
4742 | ||
4743 | /* Send a FARP response to that node */ | |
2e0fef85 JS |
4744 | if (fp->Rflags & FARP_REQUEST_FARPR) |
4745 | lpfc_issue_els_farpr(vport, did, 0); | |
dea3101e JB |
4746 | } |
4747 | } | |
c9f8735b | 4748 | return 0; |
dea3101e JB |
4749 | } |
4750 | ||
e59058c4 JS |
4751 | /** |
4752 | * lpfc_els_rcv_farpr: Process an unsolicited farp response iocb. | |
4753 | * @vport: pointer to a host virtual N_Port data structure. | |
4754 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4755 | * @ndlp: pointer to a node-list data structure. | |
4756 | * | |
4757 | * This routine processes Fibre Channel Address Resolution Protocol | |
4758 | * Response (FARPR) IOCB received as an ELS unsolicited event. It simply | |
4759 | * invokes the lpfc_els_rsp_acc() routine to the remote node to accept | |
4760 | * the FARP response request. | |
4761 | * | |
4762 | * Return code | |
4763 | * 0 - Successfully processed FARPR IOCB (currently always return 0) | |
4764 | **/ | |
dea3101e | 4765 | static int |
2e0fef85 JS |
4766 | lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4767 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
4768 | { |
4769 | struct lpfc_dmabuf *pcmd; | |
4770 | uint32_t *lp; | |
4771 | IOCB_t *icmd; | |
4772 | uint32_t cmd, did; | |
4773 | ||
4774 | icmd = &cmdiocb->iocb; | |
4775 | did = icmd->un.elsreq64.remoteID; | |
4776 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4777 | lp = (uint32_t *) pcmd->virt; | |
4778 | ||
4779 | cmd = *lp++; | |
4780 | /* FARP-RSP received from DID <did> */ | |
e8b62011 JS |
4781 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4782 | "0600 FARP-RSP received from DID x%x\n", did); | |
dea3101e | 4783 | /* ACCEPT the Farp resp request */ |
51ef4c26 | 4784 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e JB |
4785 | |
4786 | return 0; | |
4787 | } | |
4788 | ||
e59058c4 JS |
4789 | /** |
4790 | * lpfc_els_rcv_fan: Process an unsolicited fan iocb command. | |
4791 | * @vport: pointer to a host virtual N_Port data structure. | |
4792 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4793 | * @fan_ndlp: pointer to a node-list data structure. | |
4794 | * | |
4795 | * This routine processes a Fabric Address Notification (FAN) IOCB | |
4796 | * command received as an ELS unsolicited event. The FAN ELS command will | |
4797 | * only be processed on a physical port (i.e., the @vport represents the | |
4798 | * physical port). The fabric NodeName and PortName from the FAN IOCB are | |
4799 | * compared against those in the phba data structure. If any of those is | |
4800 | * different, the lpfc_initial_flogi() routine is invoked to initialize | |
4801 | * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise, | |
4802 | * if both of those are identical, the lpfc_issue_fabric_reglogin() routine | |
4803 | * is invoked to register login to the fabric. | |
4804 | * | |
4805 | * Return code | |
4806 | * 0 - Successfully processed fan iocb (currently always return 0). | |
4807 | **/ | |
dea3101e | 4808 | static int |
2e0fef85 JS |
4809 | lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4810 | struct lpfc_nodelist *fan_ndlp) | |
dea3101e | 4811 | { |
0d2b6b83 | 4812 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4813 | uint32_t *lp; |
5024ab17 | 4814 | FAN *fp; |
dea3101e | 4815 | |
0d2b6b83 JS |
4816 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n"); |
4817 | lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt; | |
4818 | fp = (FAN *) ++lp; | |
5024ab17 | 4819 | /* FAN received; Fan does not have a reply sequence */ |
0d2b6b83 JS |
4820 | if ((vport == phba->pport) && |
4821 | (vport->port_state == LPFC_LOCAL_CFG_LINK)) { | |
5024ab17 | 4822 | if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName, |
0d2b6b83 | 4823 | sizeof(struct lpfc_name))) || |
5024ab17 | 4824 | (memcmp(&phba->fc_fabparam.portName, &fp->FportName, |
0d2b6b83 JS |
4825 | sizeof(struct lpfc_name)))) { |
4826 | /* This port has switched fabrics. FLOGI is required */ | |
2e0fef85 | 4827 | lpfc_initial_flogi(vport); |
0d2b6b83 JS |
4828 | } else { |
4829 | /* FAN verified - skip FLOGI */ | |
4830 | vport->fc_myDID = vport->fc_prevDID; | |
4831 | lpfc_issue_fabric_reglogin(vport); | |
5024ab17 | 4832 | } |
dea3101e | 4833 | } |
c9f8735b | 4834 | return 0; |
dea3101e JB |
4835 | } |
4836 | ||
e59058c4 JS |
4837 | /** |
4838 | * lpfc_els_timeout: Handler funciton to the els timer. | |
4839 | * @ptr: holder for the timer function associated data. | |
4840 | * | |
4841 | * This routine is invoked by the ELS timer after timeout. It posts the ELS | |
4842 | * timer timeout event by setting the WORKER_ELS_TMO bit to the work port | |
4843 | * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake | |
4844 | * up the worker thread. It is for the worker thread to invoke the routine | |
4845 | * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO. | |
4846 | **/ | |
dea3101e JB |
4847 | void |
4848 | lpfc_els_timeout(unsigned long ptr) | |
4849 | { | |
2e0fef85 JS |
4850 | struct lpfc_vport *vport = (struct lpfc_vport *) ptr; |
4851 | struct lpfc_hba *phba = vport->phba; | |
5e9d9b82 | 4852 | uint32_t tmo_posted; |
dea3101e JB |
4853 | unsigned long iflag; |
4854 | ||
2e0fef85 | 4855 | spin_lock_irqsave(&vport->work_port_lock, iflag); |
5e9d9b82 JS |
4856 | tmo_posted = vport->work_port_events & WORKER_ELS_TMO; |
4857 | if (!tmo_posted) | |
2e0fef85 | 4858 | vport->work_port_events |= WORKER_ELS_TMO; |
5e9d9b82 | 4859 | spin_unlock_irqrestore(&vport->work_port_lock, iflag); |
92d7f7b0 | 4860 | |
5e9d9b82 JS |
4861 | if (!tmo_posted) |
4862 | lpfc_worker_wake_up(phba); | |
dea3101e JB |
4863 | return; |
4864 | } | |
4865 | ||
e59058c4 JS |
4866 | /** |
4867 | * lpfc_els_timeout_handler: Process an els timeout event. | |
4868 | * @vport: pointer to a virtual N_Port data structure. | |
4869 | * | |
4870 | * This routine is the actual handler function that processes an ELS timeout | |
4871 | * event. It walks the ELS ring to get and abort all the IOCBs (except the | |
4872 | * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by | |
4873 | * invoking the lpfc_sli_issue_abort_iotag() routine. | |
4874 | **/ | |
dea3101e | 4875 | void |
2e0fef85 | 4876 | lpfc_els_timeout_handler(struct lpfc_vport *vport) |
dea3101e | 4877 | { |
2e0fef85 | 4878 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
4879 | struct lpfc_sli_ring *pring; |
4880 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
4881 | IOCB_t *cmd = NULL; | |
4882 | struct lpfc_dmabuf *pcmd; | |
2e0fef85 | 4883 | uint32_t els_command = 0; |
dea3101e | 4884 | uint32_t timeout; |
2e0fef85 | 4885 | uint32_t remote_ID = 0xffffffff; |
dea3101e | 4886 | |
dea3101e | 4887 | /* If the timer is already canceled do nothing */ |
2e0fef85 | 4888 | if ((vport->work_port_events & WORKER_ELS_TMO) == 0) { |
dea3101e JB |
4889 | return; |
4890 | } | |
2e0fef85 | 4891 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
4892 | timeout = (uint32_t)(phba->fc_ratov << 1); |
4893 | ||
4894 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
dea3101e JB |
4895 | |
4896 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
4897 | cmd = &piocb->iocb; | |
4898 | ||
2e0fef85 JS |
4899 | if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 || |
4900 | piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || | |
4901 | piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) | |
dea3101e | 4902 | continue; |
2e0fef85 JS |
4903 | |
4904 | if (piocb->vport != vport) | |
4905 | continue; | |
4906 | ||
dea3101e | 4907 | pcmd = (struct lpfc_dmabuf *) piocb->context2; |
2e0fef85 JS |
4908 | if (pcmd) |
4909 | els_command = *(uint32_t *) (pcmd->virt); | |
dea3101e | 4910 | |
92d7f7b0 JS |
4911 | if (els_command == ELS_CMD_FARP || |
4912 | els_command == ELS_CMD_FARPR || | |
4913 | els_command == ELS_CMD_FDISC) | |
4914 | continue; | |
4915 | ||
dea3101e | 4916 | if (piocb->drvrTimeout > 0) { |
92d7f7b0 | 4917 | if (piocb->drvrTimeout >= timeout) |
dea3101e | 4918 | piocb->drvrTimeout -= timeout; |
92d7f7b0 | 4919 | else |
dea3101e | 4920 | piocb->drvrTimeout = 0; |
dea3101e JB |
4921 | continue; |
4922 | } | |
4923 | ||
2e0fef85 JS |
4924 | remote_ID = 0xffffffff; |
4925 | if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR) | |
dea3101e | 4926 | remote_ID = cmd->un.elsreq64.remoteID; |
2e0fef85 JS |
4927 | else { |
4928 | struct lpfc_nodelist *ndlp; | |
4929 | ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext); | |
58da1ffb | 4930 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
2e0fef85 | 4931 | remote_ID = ndlp->nlp_DID; |
dea3101e | 4932 | } |
e8b62011 JS |
4933 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
4934 | "0127 ELS timeout Data: x%x x%x x%x " | |
4935 | "x%x\n", els_command, | |
4936 | remote_ID, cmd->ulpCommand, cmd->ulpIoTag); | |
07951076 | 4937 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
dea3101e | 4938 | } |
2e0fef85 | 4939 | spin_unlock_irq(&phba->hbalock); |
5a0e326d | 4940 | |
2e0fef85 JS |
4941 | if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt) |
4942 | mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); | |
dea3101e JB |
4943 | } |
4944 | ||
e59058c4 JS |
4945 | /** |
4946 | * lpfc_els_flush_cmd: Clean up the outstanding els commands to a vport. | |
4947 | * @vport: pointer to a host virtual N_Port data structure. | |
4948 | * | |
4949 | * This routine is used to clean up all the outstanding ELS commands on a | |
4950 | * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport() | |
4951 | * routine. After that, it walks the ELS transmit queue to remove all the | |
4952 | * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
4953 | * the IOCBs with a non-NULL completion callback function, the callback | |
4954 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
4955 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion | |
4956 | * callback function, the IOCB will simply be released. Finally, it walks | |
4957 | * the ELS transmit completion queue to issue an abort IOCB to any transmit | |
4958 | * completion queue IOCB that is associated with the @vport and is not | |
4959 | * an IOCB from libdfc (i.e., the management plane IOCBs that are not | |
4960 | * part of the discovery state machine) out to HBA by invoking the | |
4961 | * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the | |
4962 | * abort IOCB to any transmit completion queueed IOCB, it does not guarantee | |
4963 | * the IOCBs are aborted when this function returns. | |
4964 | **/ | |
dea3101e | 4965 | void |
2e0fef85 | 4966 | lpfc_els_flush_cmd(struct lpfc_vport *vport) |
dea3101e | 4967 | { |
2534ba75 | 4968 | LIST_HEAD(completions); |
2e0fef85 | 4969 | struct lpfc_hba *phba = vport->phba; |
329f9bc7 | 4970 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
dea3101e JB |
4971 | struct lpfc_iocbq *tmp_iocb, *piocb; |
4972 | IOCB_t *cmd = NULL; | |
92d7f7b0 JS |
4973 | |
4974 | lpfc_fabric_abort_vport(vport); | |
dea3101e | 4975 | |
2e0fef85 | 4976 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
4977 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { |
4978 | cmd = &piocb->iocb; | |
4979 | ||
4980 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { | |
4981 | continue; | |
4982 | } | |
4983 | ||
4984 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
329f9bc7 JS |
4985 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || |
4986 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
4987 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
4988 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
dea3101e | 4989 | continue; |
dea3101e | 4990 | |
2e0fef85 JS |
4991 | if (piocb->vport != vport) |
4992 | continue; | |
4993 | ||
2534ba75 | 4994 | list_move_tail(&piocb->list, &completions); |
1dcb58e5 | 4995 | pring->txq_cnt--; |
dea3101e JB |
4996 | } |
4997 | ||
4998 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
dea3101e JB |
4999 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { |
5000 | continue; | |
5001 | } | |
dea3101e | 5002 | |
2e0fef85 JS |
5003 | if (piocb->vport != vport) |
5004 | continue; | |
5005 | ||
07951076 | 5006 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
dea3101e | 5007 | } |
2e0fef85 | 5008 | spin_unlock_irq(&phba->hbalock); |
2534ba75 | 5009 | |
2e0fef85 | 5010 | while (!list_empty(&completions)) { |
2534ba75 JS |
5011 | piocb = list_get_first(&completions, struct lpfc_iocbq, list); |
5012 | cmd = &piocb->iocb; | |
92d7f7b0 | 5013 | list_del_init(&piocb->list); |
2534ba75 | 5014 | |
2e0fef85 JS |
5015 | if (!piocb->iocb_cmpl) |
5016 | lpfc_sli_release_iocbq(phba, piocb); | |
5017 | else { | |
2534ba75 JS |
5018 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; |
5019 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
5020 | (piocb->iocb_cmpl) (phba, piocb, piocb); | |
2e0fef85 | 5021 | } |
2534ba75 JS |
5022 | } |
5023 | ||
dea3101e JB |
5024 | return; |
5025 | } | |
5026 | ||
e59058c4 JS |
5027 | /** |
5028 | * lpfc_els_flush_all_cmd: Clean up all the outstanding els commands to a HBA. | |
5029 | * @phba: pointer to lpfc hba data structure. | |
5030 | * | |
5031 | * This routine is used to clean up all the outstanding ELS commands on a | |
5032 | * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba() | |
5033 | * routine. After that, it walks the ELS transmit queue to remove all the | |
5034 | * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
5035 | * the IOCBs with the completion callback function associated, the callback | |
5036 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
5037 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion | |
5038 | * callback function associated, the IOCB will simply be released. Finally, | |
5039 | * it walks the ELS transmit completion queue to issue an abort IOCB to any | |
5040 | * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the | |
5041 | * management plane IOCBs that are not part of the discovery state machine) | |
5042 | * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine. | |
5043 | **/ | |
549e55cd JS |
5044 | void |
5045 | lpfc_els_flush_all_cmd(struct lpfc_hba *phba) | |
5046 | { | |
5047 | LIST_HEAD(completions); | |
5048 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
5049 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
5050 | IOCB_t *cmd = NULL; | |
5051 | ||
5052 | lpfc_fabric_abort_hba(phba); | |
5053 | spin_lock_irq(&phba->hbalock); | |
5054 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { | |
5055 | cmd = &piocb->iocb; | |
5056 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
5057 | continue; | |
5058 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
5059 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || | |
5060 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
5061 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
5062 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
5063 | continue; | |
5064 | list_move_tail(&piocb->list, &completions); | |
5065 | pring->txq_cnt--; | |
5066 | } | |
5067 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
5068 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
5069 | continue; | |
5070 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); | |
5071 | } | |
5072 | spin_unlock_irq(&phba->hbalock); | |
5073 | while (!list_empty(&completions)) { | |
5074 | piocb = list_get_first(&completions, struct lpfc_iocbq, list); | |
5075 | cmd = &piocb->iocb; | |
5076 | list_del_init(&piocb->list); | |
5077 | if (!piocb->iocb_cmpl) | |
5078 | lpfc_sli_release_iocbq(phba, piocb); | |
5079 | else { | |
5080 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
5081 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
5082 | (piocb->iocb_cmpl) (phba, piocb, piocb); | |
5083 | } | |
5084 | } | |
5085 | return; | |
5086 | } | |
5087 | ||
ea2151b4 JS |
5088 | /** |
5089 | * lpfc_send_els_failure_event: Posts an ELS command failure event. | |
5090 | * @phba: Pointer to hba context object. | |
5091 | * @cmdiocbp: Pointer to command iocb which reported error. | |
5092 | * @rspiocbp: Pointer to response iocb which reported error. | |
5093 | * | |
5094 | * This function sends an event when there is an ELS command | |
5095 | * failure. | |
5096 | **/ | |
5097 | void | |
5098 | lpfc_send_els_failure_event(struct lpfc_hba *phba, | |
5099 | struct lpfc_iocbq *cmdiocbp, | |
5100 | struct lpfc_iocbq *rspiocbp) | |
5101 | { | |
5102 | struct lpfc_vport *vport = cmdiocbp->vport; | |
5103 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
5104 | struct lpfc_lsrjt_event lsrjt_event; | |
5105 | struct lpfc_fabric_event_header fabric_event; | |
5106 | struct ls_rjt stat; | |
5107 | struct lpfc_nodelist *ndlp; | |
5108 | uint32_t *pcmd; | |
5109 | ||
5110 | ndlp = cmdiocbp->context1; | |
5111 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) | |
5112 | return; | |
5113 | ||
5114 | if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) { | |
5115 | lsrjt_event.header.event_type = FC_REG_ELS_EVENT; | |
5116 | lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV; | |
5117 | memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname, | |
5118 | sizeof(struct lpfc_name)); | |
5119 | memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename, | |
5120 | sizeof(struct lpfc_name)); | |
5121 | pcmd = (uint32_t *) (((struct lpfc_dmabuf *) | |
5122 | cmdiocbp->context2)->virt); | |
5123 | lsrjt_event.command = *pcmd; | |
5124 | stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]); | |
5125 | lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode; | |
5126 | lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp; | |
5127 | fc_host_post_vendor_event(shost, | |
5128 | fc_get_event_number(), | |
5129 | sizeof(lsrjt_event), | |
5130 | (char *)&lsrjt_event, | |
5131 | SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); | |
5132 | return; | |
5133 | } | |
5134 | if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) || | |
5135 | (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) { | |
5136 | fabric_event.event_type = FC_REG_FABRIC_EVENT; | |
5137 | if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) | |
5138 | fabric_event.subcategory = LPFC_EVENT_PORT_BUSY; | |
5139 | else | |
5140 | fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY; | |
5141 | memcpy(fabric_event.wwpn, &ndlp->nlp_portname, | |
5142 | sizeof(struct lpfc_name)); | |
5143 | memcpy(fabric_event.wwnn, &ndlp->nlp_nodename, | |
5144 | sizeof(struct lpfc_name)); | |
5145 | fc_host_post_vendor_event(shost, | |
5146 | fc_get_event_number(), | |
5147 | sizeof(fabric_event), | |
5148 | (char *)&fabric_event, | |
5149 | SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); | |
5150 | return; | |
5151 | } | |
5152 | ||
5153 | } | |
5154 | ||
5155 | /** | |
5156 | * lpfc_send_els_event: Posts unsolicited els event. | |
5157 | * @vport: Pointer to vport object. | |
5158 | * @ndlp: Pointer FC node object. | |
5159 | * @cmd: ELS command code. | |
5160 | * | |
5161 | * This function posts an event when there is an incoming | |
5162 | * unsolicited ELS command. | |
5163 | **/ | |
5164 | static void | |
5165 | lpfc_send_els_event(struct lpfc_vport *vport, | |
5166 | struct lpfc_nodelist *ndlp, | |
5167 | uint32_t cmd) | |
5168 | { | |
5169 | struct lpfc_els_event_header els_data; | |
5170 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
5171 | ||
5172 | els_data.event_type = FC_REG_ELS_EVENT; | |
5173 | switch (cmd) { | |
5174 | case ELS_CMD_PLOGI: | |
5175 | els_data.subcategory = LPFC_EVENT_PLOGI_RCV; | |
5176 | break; | |
5177 | case ELS_CMD_PRLO: | |
5178 | els_data.subcategory = LPFC_EVENT_PRLO_RCV; | |
5179 | break; | |
5180 | case ELS_CMD_ADISC: | |
5181 | els_data.subcategory = LPFC_EVENT_ADISC_RCV; | |
5182 | break; | |
5183 | default: | |
5184 | return; | |
5185 | } | |
5186 | memcpy(els_data.wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); | |
5187 | memcpy(els_data.wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); | |
5188 | fc_host_post_vendor_event(shost, | |
5189 | fc_get_event_number(), | |
5190 | sizeof(els_data), | |
5191 | (char *)&els_data, | |
5192 | SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); | |
5193 | ||
5194 | return; | |
5195 | } | |
5196 | ||
5197 | ||
e59058c4 JS |
5198 | /** |
5199 | * lpfc_els_unsol_buffer: Process an unsolicited event data buffer. | |
5200 | * @phba: pointer to lpfc hba data structure. | |
5201 | * @pring: pointer to a SLI ring. | |
5202 | * @vport: pointer to a host virtual N_Port data structure. | |
5203 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
5204 | * | |
5205 | * This routine is used for processing the IOCB associated with a unsolicited | |
5206 | * event. It first determines whether there is an existing ndlp that matches | |
5207 | * the DID from the unsolicited IOCB. If not, it will create a new one with | |
5208 | * the DID from the unsolicited IOCB. The ELS command from the unsolicited | |
5209 | * IOCB is then used to invoke the proper routine and to set up proper state | |
5210 | * of the discovery state machine. | |
5211 | **/ | |
ed957684 JS |
5212 | static void |
5213 | lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
92d7f7b0 | 5214 | struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) |
dea3101e | 5215 | { |
87af33fe | 5216 | struct Scsi_Host *shost; |
dea3101e | 5217 | struct lpfc_nodelist *ndlp; |
dea3101e | 5218 | struct ls_rjt stat; |
92d7f7b0 | 5219 | uint32_t *payload; |
2e0fef85 | 5220 | uint32_t cmd, did, newnode, rjt_err = 0; |
ed957684 | 5221 | IOCB_t *icmd = &elsiocb->iocb; |
dea3101e | 5222 | |
e47c9093 | 5223 | if (!vport || !(elsiocb->context2)) |
dea3101e | 5224 | goto dropit; |
2e0fef85 | 5225 | |
dea3101e | 5226 | newnode = 0; |
92d7f7b0 JS |
5227 | payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt; |
5228 | cmd = *payload; | |
ed957684 | 5229 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0) |
495a714c | 5230 | lpfc_post_buffer(phba, pring, 1); |
dea3101e | 5231 | |
858c9f6c JS |
5232 | did = icmd->un.rcvels.remoteID; |
5233 | if (icmd->ulpStatus) { | |
5234 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
5235 | "RCV Unsol ELS: status:x%x/x%x did:x%x", | |
5236 | icmd->ulpStatus, icmd->un.ulpWord[4], did); | |
dea3101e | 5237 | goto dropit; |
858c9f6c | 5238 | } |
dea3101e JB |
5239 | |
5240 | /* Check to see if link went down during discovery */ | |
ed957684 | 5241 | if (lpfc_els_chk_latt(vport)) |
dea3101e | 5242 | goto dropit; |
dea3101e | 5243 | |
92d7f7b0 JS |
5244 | /* Ignore traffic recevied during vport shutdown. */ |
5245 | if (vport->load_flag & FC_UNLOADING) | |
5246 | goto dropit; | |
5247 | ||
2e0fef85 | 5248 | ndlp = lpfc_findnode_did(vport, did); |
c9f8735b | 5249 | if (!ndlp) { |
dea3101e | 5250 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b | 5251 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
ed957684 | 5252 | if (!ndlp) |
dea3101e | 5253 | goto dropit; |
dea3101e | 5254 | |
2e0fef85 | 5255 | lpfc_nlp_init(vport, ndlp, did); |
98c9ea5c | 5256 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
dea3101e | 5257 | newnode = 1; |
e47c9093 | 5258 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) |
dea3101e | 5259 | ndlp->nlp_type |= NLP_FABRIC; |
58da1ffb JS |
5260 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
5261 | ndlp = lpfc_enable_node(vport, ndlp, | |
5262 | NLP_STE_UNUSED_NODE); | |
5263 | if (!ndlp) | |
5264 | goto dropit; | |
5265 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
5266 | newnode = 1; | |
5267 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
5268 | ndlp->nlp_type |= NLP_FABRIC; | |
5269 | } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { | |
5270 | /* This is similar to the new node path */ | |
5271 | ndlp = lpfc_nlp_get(ndlp); | |
5272 | if (!ndlp) | |
5273 | goto dropit; | |
5274 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
5275 | newnode = 1; | |
87af33fe | 5276 | } |
dea3101e JB |
5277 | |
5278 | phba->fc_stat.elsRcvFrame++; | |
e47c9093 | 5279 | |
329f9bc7 | 5280 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
2e0fef85 | 5281 | elsiocb->vport = vport; |
dea3101e JB |
5282 | |
5283 | if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { | |
5284 | cmd &= ELS_CMD_MASK; | |
5285 | } | |
5286 | /* ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
5287 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5288 | "0112 ELS command x%x received from NPORT x%x " | |
5289 | "Data: x%x\n", cmd, did, vport->port_state); | |
dea3101e JB |
5290 | switch (cmd) { |
5291 | case ELS_CMD_PLOGI: | |
858c9f6c JS |
5292 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5293 | "RCV PLOGI: did:x%x/ste:x%x flg:x%x", | |
5294 | did, vport->port_state, ndlp->nlp_flag); | |
5295 | ||
dea3101e | 5296 | phba->fc_stat.elsRcvPLOGI++; |
858c9f6c JS |
5297 | ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); |
5298 | ||
ea2151b4 | 5299 | lpfc_send_els_event(vport, ndlp, cmd); |
858c9f6c | 5300 | if (vport->port_state < LPFC_DISC_AUTH) { |
1b32f6aa JS |
5301 | if (!(phba->pport->fc_flag & FC_PT2PT) || |
5302 | (phba->pport->fc_flag & FC_PT2PT_PLOGI)) { | |
5303 | rjt_err = LSRJT_UNABLE_TPC; | |
5304 | break; | |
5305 | } | |
5306 | /* We get here, and drop thru, if we are PT2PT with | |
5307 | * another NPort and the other side has initiated | |
5308 | * the PLOGI before responding to our FLOGI. | |
5309 | */ | |
dea3101e | 5310 | } |
87af33fe JS |
5311 | |
5312 | shost = lpfc_shost_from_vport(vport); | |
5313 | spin_lock_irq(shost->host_lock); | |
5314 | ndlp->nlp_flag &= ~NLP_TARGET_REMOVE; | |
5315 | spin_unlock_irq(shost->host_lock); | |
5316 | ||
2e0fef85 JS |
5317 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
5318 | NLP_EVT_RCV_PLOGI); | |
858c9f6c | 5319 | |
dea3101e JB |
5320 | break; |
5321 | case ELS_CMD_FLOGI: | |
858c9f6c JS |
5322 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5323 | "RCV FLOGI: did:x%x/ste:x%x flg:x%x", | |
5324 | did, vport->port_state, ndlp->nlp_flag); | |
5325 | ||
dea3101e | 5326 | phba->fc_stat.elsRcvFLOGI++; |
51ef4c26 | 5327 | lpfc_els_rcv_flogi(vport, elsiocb, ndlp); |
87af33fe | 5328 | if (newnode) |
98c9ea5c | 5329 | lpfc_nlp_put(ndlp); |
dea3101e JB |
5330 | break; |
5331 | case ELS_CMD_LOGO: | |
858c9f6c JS |
5332 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5333 | "RCV LOGO: did:x%x/ste:x%x flg:x%x", | |
5334 | did, vport->port_state, ndlp->nlp_flag); | |
5335 | ||
dea3101e | 5336 | phba->fc_stat.elsRcvLOGO++; |
2e0fef85 | 5337 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 5338 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
5339 | break; |
5340 | } | |
2e0fef85 | 5341 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO); |
dea3101e JB |
5342 | break; |
5343 | case ELS_CMD_PRLO: | |
858c9f6c JS |
5344 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5345 | "RCV PRLO: did:x%x/ste:x%x flg:x%x", | |
5346 | did, vport->port_state, ndlp->nlp_flag); | |
5347 | ||
dea3101e | 5348 | phba->fc_stat.elsRcvPRLO++; |
ea2151b4 | 5349 | lpfc_send_els_event(vport, ndlp, cmd); |
2e0fef85 | 5350 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 5351 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
5352 | break; |
5353 | } | |
2e0fef85 | 5354 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); |
dea3101e JB |
5355 | break; |
5356 | case ELS_CMD_RSCN: | |
5357 | phba->fc_stat.elsRcvRSCN++; | |
51ef4c26 | 5358 | lpfc_els_rcv_rscn(vport, elsiocb, ndlp); |
87af33fe | 5359 | if (newnode) |
98c9ea5c | 5360 | lpfc_nlp_put(ndlp); |
dea3101e JB |
5361 | break; |
5362 | case ELS_CMD_ADISC: | |
858c9f6c JS |
5363 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5364 | "RCV ADISC: did:x%x/ste:x%x flg:x%x", | |
5365 | did, vport->port_state, ndlp->nlp_flag); | |
5366 | ||
ea2151b4 | 5367 | lpfc_send_els_event(vport, ndlp, cmd); |
dea3101e | 5368 | phba->fc_stat.elsRcvADISC++; |
2e0fef85 | 5369 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 5370 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
5371 | break; |
5372 | } | |
2e0fef85 JS |
5373 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
5374 | NLP_EVT_RCV_ADISC); | |
dea3101e JB |
5375 | break; |
5376 | case ELS_CMD_PDISC: | |
858c9f6c JS |
5377 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5378 | "RCV PDISC: did:x%x/ste:x%x flg:x%x", | |
5379 | did, vport->port_state, ndlp->nlp_flag); | |
5380 | ||
dea3101e | 5381 | phba->fc_stat.elsRcvPDISC++; |
2e0fef85 | 5382 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 5383 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
5384 | break; |
5385 | } | |
2e0fef85 JS |
5386 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
5387 | NLP_EVT_RCV_PDISC); | |
dea3101e JB |
5388 | break; |
5389 | case ELS_CMD_FARPR: | |
858c9f6c JS |
5390 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5391 | "RCV FARPR: did:x%x/ste:x%x flg:x%x", | |
5392 | did, vport->port_state, ndlp->nlp_flag); | |
5393 | ||
dea3101e | 5394 | phba->fc_stat.elsRcvFARPR++; |
2e0fef85 | 5395 | lpfc_els_rcv_farpr(vport, elsiocb, ndlp); |
dea3101e JB |
5396 | break; |
5397 | case ELS_CMD_FARP: | |
858c9f6c JS |
5398 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5399 | "RCV FARP: did:x%x/ste:x%x flg:x%x", | |
5400 | did, vport->port_state, ndlp->nlp_flag); | |
5401 | ||
dea3101e | 5402 | phba->fc_stat.elsRcvFARP++; |
2e0fef85 | 5403 | lpfc_els_rcv_farp(vport, elsiocb, ndlp); |
dea3101e JB |
5404 | break; |
5405 | case ELS_CMD_FAN: | |
858c9f6c JS |
5406 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5407 | "RCV FAN: did:x%x/ste:x%x flg:x%x", | |
5408 | did, vport->port_state, ndlp->nlp_flag); | |
5409 | ||
dea3101e | 5410 | phba->fc_stat.elsRcvFAN++; |
2e0fef85 | 5411 | lpfc_els_rcv_fan(vport, elsiocb, ndlp); |
dea3101e | 5412 | break; |
dea3101e | 5413 | case ELS_CMD_PRLI: |
858c9f6c JS |
5414 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5415 | "RCV PRLI: did:x%x/ste:x%x flg:x%x", | |
5416 | did, vport->port_state, ndlp->nlp_flag); | |
5417 | ||
dea3101e | 5418 | phba->fc_stat.elsRcvPRLI++; |
2e0fef85 | 5419 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 5420 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
5421 | break; |
5422 | } | |
2e0fef85 | 5423 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI); |
dea3101e | 5424 | break; |
7bb3b137 | 5425 | case ELS_CMD_LIRR: |
858c9f6c JS |
5426 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5427 | "RCV LIRR: did:x%x/ste:x%x flg:x%x", | |
5428 | did, vport->port_state, ndlp->nlp_flag); | |
5429 | ||
7bb3b137 | 5430 | phba->fc_stat.elsRcvLIRR++; |
2e0fef85 | 5431 | lpfc_els_rcv_lirr(vport, elsiocb, ndlp); |
87af33fe | 5432 | if (newnode) |
98c9ea5c | 5433 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
5434 | break; |
5435 | case ELS_CMD_RPS: | |
858c9f6c JS |
5436 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5437 | "RCV RPS: did:x%x/ste:x%x flg:x%x", | |
5438 | did, vport->port_state, ndlp->nlp_flag); | |
5439 | ||
7bb3b137 | 5440 | phba->fc_stat.elsRcvRPS++; |
2e0fef85 | 5441 | lpfc_els_rcv_rps(vport, elsiocb, ndlp); |
87af33fe | 5442 | if (newnode) |
98c9ea5c | 5443 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
5444 | break; |
5445 | case ELS_CMD_RPL: | |
858c9f6c JS |
5446 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5447 | "RCV RPL: did:x%x/ste:x%x flg:x%x", | |
5448 | did, vport->port_state, ndlp->nlp_flag); | |
5449 | ||
7bb3b137 | 5450 | phba->fc_stat.elsRcvRPL++; |
2e0fef85 | 5451 | lpfc_els_rcv_rpl(vport, elsiocb, ndlp); |
87af33fe | 5452 | if (newnode) |
98c9ea5c | 5453 | lpfc_nlp_put(ndlp); |
7bb3b137 | 5454 | break; |
dea3101e | 5455 | case ELS_CMD_RNID: |
858c9f6c JS |
5456 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5457 | "RCV RNID: did:x%x/ste:x%x flg:x%x", | |
5458 | did, vport->port_state, ndlp->nlp_flag); | |
5459 | ||
dea3101e | 5460 | phba->fc_stat.elsRcvRNID++; |
2e0fef85 | 5461 | lpfc_els_rcv_rnid(vport, elsiocb, ndlp); |
87af33fe | 5462 | if (newnode) |
98c9ea5c | 5463 | lpfc_nlp_put(ndlp); |
dea3101e JB |
5464 | break; |
5465 | default: | |
858c9f6c JS |
5466 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5467 | "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x", | |
5468 | cmd, did, vport->port_state); | |
5469 | ||
dea3101e | 5470 | /* Unsupported ELS command, reject */ |
858c9f6c | 5471 | rjt_err = LSRJT_INVALID_CMD; |
dea3101e JB |
5472 | |
5473 | /* Unknown ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
5474 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
5475 | "0115 Unknown ELS command x%x " | |
5476 | "received from NPORT x%x\n", cmd, did); | |
87af33fe | 5477 | if (newnode) |
98c9ea5c | 5478 | lpfc_nlp_put(ndlp); |
dea3101e JB |
5479 | break; |
5480 | } | |
5481 | ||
5482 | /* check if need to LS_RJT received ELS cmd */ | |
5483 | if (rjt_err) { | |
92d7f7b0 | 5484 | memset(&stat, 0, sizeof(stat)); |
858c9f6c | 5485 | stat.un.b.lsRjtRsnCode = rjt_err; |
1f679caf | 5486 | stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; |
858c9f6c JS |
5487 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp, |
5488 | NULL); | |
dea3101e JB |
5489 | } |
5490 | ||
d7c255b2 JS |
5491 | lpfc_nlp_put(elsiocb->context1); |
5492 | elsiocb->context1 = NULL; | |
ed957684 JS |
5493 | return; |
5494 | ||
5495 | dropit: | |
98c9ea5c JS |
5496 | if (vport && !(vport->load_flag & FC_UNLOADING)) |
5497 | lpfc_printf_log(phba, KERN_ERR, LOG_ELS, | |
e8b62011 | 5498 | "(%d):0111 Dropping received ELS cmd " |
ed957684 | 5499 | "Data: x%x x%x x%x\n", |
98c9ea5c | 5500 | vport->vpi, icmd->ulpStatus, |
e8b62011 | 5501 | icmd->un.ulpWord[4], icmd->ulpTimeout); |
ed957684 JS |
5502 | phba->fc_stat.elsRcvDrop++; |
5503 | } | |
5504 | ||
e59058c4 JS |
5505 | /** |
5506 | * lpfc_find_vport_by_vpid: Find a vport on a HBA through vport identifier. | |
5507 | * @phba: pointer to lpfc hba data structure. | |
5508 | * @vpi: host virtual N_Port identifier. | |
5509 | * | |
5510 | * This routine finds a vport on a HBA (referred by @phba) through a | |
5511 | * @vpi. The function walks the HBA's vport list and returns the address | |
5512 | * of the vport with the matching @vpi. | |
5513 | * | |
5514 | * Return code | |
5515 | * NULL - No vport with the matching @vpi found | |
5516 | * Otherwise - Address to the vport with the matching @vpi. | |
5517 | **/ | |
92d7f7b0 JS |
5518 | static struct lpfc_vport * |
5519 | lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) | |
5520 | { | |
5521 | struct lpfc_vport *vport; | |
549e55cd | 5522 | unsigned long flags; |
92d7f7b0 | 5523 | |
549e55cd | 5524 | spin_lock_irqsave(&phba->hbalock, flags); |
92d7f7b0 | 5525 | list_for_each_entry(vport, &phba->port_list, listentry) { |
549e55cd JS |
5526 | if (vport->vpi == vpi) { |
5527 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
92d7f7b0 | 5528 | return vport; |
549e55cd | 5529 | } |
92d7f7b0 | 5530 | } |
549e55cd | 5531 | spin_unlock_irqrestore(&phba->hbalock, flags); |
92d7f7b0 JS |
5532 | return NULL; |
5533 | } | |
ed957684 | 5534 | |
e59058c4 JS |
5535 | /** |
5536 | * lpfc_els_unsol_event: Process an unsolicited event from an els sli ring. | |
5537 | * @phba: pointer to lpfc hba data structure. | |
5538 | * @pring: pointer to a SLI ring. | |
5539 | * @elsiocb: pointer to lpfc els iocb data structure. | |
5540 | * | |
5541 | * This routine is used to process an unsolicited event received from a SLI | |
5542 | * (Service Level Interface) ring. The actual processing of the data buffer | |
5543 | * associated with the unsolicited event is done by invoking the routine | |
5544 | * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the | |
5545 | * SLI ring on which the unsolicited event was received. | |
5546 | **/ | |
ed957684 JS |
5547 | void |
5548 | lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
5549 | struct lpfc_iocbq *elsiocb) | |
5550 | { | |
5551 | struct lpfc_vport *vport = phba->pport; | |
ed957684 | 5552 | IOCB_t *icmd = &elsiocb->iocb; |
ed957684 | 5553 | dma_addr_t paddr; |
92d7f7b0 JS |
5554 | struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2; |
5555 | struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3; | |
5556 | ||
d7c255b2 | 5557 | elsiocb->context1 = NULL; |
92d7f7b0 JS |
5558 | elsiocb->context2 = NULL; |
5559 | elsiocb->context3 = NULL; | |
ed957684 | 5560 | |
92d7f7b0 JS |
5561 | if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) { |
5562 | lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); | |
5563 | } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT && | |
5564 | (icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING) { | |
ed957684 JS |
5565 | phba->fc_stat.NoRcvBuf++; |
5566 | /* Not enough posted buffers; Try posting more buffers */ | |
92d7f7b0 | 5567 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) |
495a714c | 5568 | lpfc_post_buffer(phba, pring, 0); |
ed957684 JS |
5569 | return; |
5570 | } | |
5571 | ||
92d7f7b0 JS |
5572 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
5573 | (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX || | |
5574 | icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
5575 | if (icmd->unsli3.rcvsli3.vpi == 0xffff) | |
5576 | vport = phba->pport; | |
5577 | else { | |
5578 | uint16_t vpi = icmd->unsli3.rcvsli3.vpi; | |
5579 | vport = lpfc_find_vport_by_vpid(phba, vpi); | |
5580 | } | |
5581 | } | |
7f5f3d0d JS |
5582 | /* If there are no BDEs associated |
5583 | * with this IOCB, there is nothing to do. | |
5584 | */ | |
ed957684 JS |
5585 | if (icmd->ulpBdeCount == 0) |
5586 | return; | |
5587 | ||
7f5f3d0d JS |
5588 | /* type of ELS cmd is first 32bit word |
5589 | * in packet | |
5590 | */ | |
ed957684 | 5591 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
92d7f7b0 | 5592 | elsiocb->context2 = bdeBuf1; |
ed957684 JS |
5593 | } else { |
5594 | paddr = getPaddr(icmd->un.cont64[0].addrHigh, | |
5595 | icmd->un.cont64[0].addrLow); | |
92d7f7b0 JS |
5596 | elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring, |
5597 | paddr); | |
ed957684 JS |
5598 | } |
5599 | ||
92d7f7b0 JS |
5600 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); |
5601 | /* | |
5602 | * The different unsolicited event handlers would tell us | |
5603 | * if they are done with "mp" by setting context2 to NULL. | |
5604 | */ | |
dea3101e | 5605 | if (elsiocb->context2) { |
92d7f7b0 JS |
5606 | lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2); |
5607 | elsiocb->context2 = NULL; | |
dea3101e | 5608 | } |
ed957684 JS |
5609 | |
5610 | /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */ | |
92d7f7b0 | 5611 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) && |
ed957684 | 5612 | icmd->ulpBdeCount == 2) { |
92d7f7b0 JS |
5613 | elsiocb->context2 = bdeBuf2; |
5614 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); | |
ed957684 JS |
5615 | /* free mp if we are done with it */ |
5616 | if (elsiocb->context2) { | |
92d7f7b0 JS |
5617 | lpfc_in_buf_free(phba, elsiocb->context2); |
5618 | elsiocb->context2 = NULL; | |
5619 | } | |
5620 | } | |
5621 | } | |
5622 | ||
e59058c4 JS |
5623 | /** |
5624 | * lpfc_do_scr_ns_plogi: Issue a plogi to the name server for scr. | |
5625 | * @phba: pointer to lpfc hba data structure. | |
5626 | * @vport: pointer to a virtual N_Port data structure. | |
5627 | * | |
5628 | * This routine issues a Port Login (PLOGI) to the Name Server with | |
5629 | * State Change Request (SCR) for a @vport. This routine will create an | |
5630 | * ndlp for the Name Server associated to the @vport if such node does | |
5631 | * not already exist. The PLOGI to Name Server is issued by invoking the | |
5632 | * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface | |
5633 | * (FDMI) is configured to the @vport, a FDMI node will be created and | |
5634 | * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine. | |
5635 | **/ | |
92d7f7b0 JS |
5636 | void |
5637 | lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) | |
5638 | { | |
5639 | struct lpfc_nodelist *ndlp, *ndlp_fdmi; | |
5640 | ||
5641 | ndlp = lpfc_findnode_did(vport, NameServer_DID); | |
5642 | if (!ndlp) { | |
5643 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
5644 | if (!ndlp) { | |
5645 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
5646 | lpfc_disc_start(vport); | |
5647 | return; | |
5648 | } | |
5649 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
5650 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
5651 | "0251 NameServer login: no memory\n"); | |
92d7f7b0 JS |
5652 | return; |
5653 | } | |
5654 | lpfc_nlp_init(vport, ndlp, NameServer_DID); | |
e47c9093 JS |
5655 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
5656 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
5657 | if (!ndlp) { | |
5658 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
5659 | lpfc_disc_start(vport); | |
5660 | return; | |
5661 | } | |
5662 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
5663 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
5664 | "0348 NameServer login: node freed\n"); | |
5665 | return; | |
5666 | } | |
92d7f7b0 | 5667 | } |
58da1ffb | 5668 | ndlp->nlp_type |= NLP_FABRIC; |
92d7f7b0 JS |
5669 | |
5670 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); | |
5671 | ||
5672 | if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) { | |
5673 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
5674 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
5675 | "0252 Cannot issue NameServer login\n"); | |
92d7f7b0 JS |
5676 | return; |
5677 | } | |
5678 | ||
3de2a653 | 5679 | if (vport->cfg_fdmi_on) { |
92d7f7b0 JS |
5680 | ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool, |
5681 | GFP_KERNEL); | |
5682 | if (ndlp_fdmi) { | |
5683 | lpfc_nlp_init(vport, ndlp_fdmi, FDMI_DID); | |
5684 | ndlp_fdmi->nlp_type |= NLP_FABRIC; | |
58da1ffb JS |
5685 | lpfc_nlp_set_state(vport, ndlp_fdmi, |
5686 | NLP_STE_PLOGI_ISSUE); | |
92d7f7b0 JS |
5687 | lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID, |
5688 | 0); | |
5689 | } | |
5690 | } | |
5691 | return; | |
5692 | } | |
5693 | ||
e59058c4 JS |
5694 | /** |
5695 | * lpfc_cmpl_reg_new_vport: Completion callback function to register new vport. | |
5696 | * @phba: pointer to lpfc hba data structure. | |
5697 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
5698 | * | |
5699 | * This routine is the completion callback function to register new vport | |
5700 | * mailbox command. If the new vport mailbox command completes successfully, | |
5701 | * the fabric registration login shall be performed on physical port (the | |
5702 | * new vport created is actually a physical port, with VPI 0) or the port | |
5703 | * login to Name Server for State Change Request (SCR) will be performed | |
5704 | * on virtual port (real virtual port, with VPI greater than 0). | |
5705 | **/ | |
92d7f7b0 JS |
5706 | static void |
5707 | lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
5708 | { | |
5709 | struct lpfc_vport *vport = pmb->vport; | |
5710 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
5711 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
5712 | MAILBOX_t *mb = &pmb->mb; | |
5713 | ||
09372820 | 5714 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 5715 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; |
09372820 | 5716 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 JS |
5717 | |
5718 | if (mb->mbxStatus) { | |
e8b62011 JS |
5719 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
5720 | "0915 Register VPI failed: 0x%x\n", | |
5721 | mb->mbxStatus); | |
92d7f7b0 JS |
5722 | |
5723 | switch (mb->mbxStatus) { | |
5724 | case 0x11: /* unsupported feature */ | |
5725 | case 0x9603: /* max_vpi exceeded */ | |
7f5f3d0d | 5726 | case 0x9602: /* Link event since CLEAR_LA */ |
92d7f7b0 JS |
5727 | /* giving up on vport registration */ |
5728 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
5729 | spin_lock_irq(shost->host_lock); | |
5730 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
5731 | spin_unlock_irq(shost->host_lock); | |
5732 | lpfc_can_disctmo(vport); | |
5733 | break; | |
5734 | default: | |
5735 | /* Try to recover from this error */ | |
5736 | lpfc_mbx_unreg_vpi(vport); | |
09372820 | 5737 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 5738 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
09372820 | 5739 | spin_unlock_irq(shost->host_lock); |
7f5f3d0d JS |
5740 | if (vport->port_type == LPFC_PHYSICAL_PORT) |
5741 | lpfc_initial_flogi(vport); | |
5742 | else | |
5743 | lpfc_initial_fdisc(vport); | |
92d7f7b0 JS |
5744 | break; |
5745 | } | |
5746 | ||
5747 | } else { | |
5748 | if (vport == phba->pport) | |
5749 | lpfc_issue_fabric_reglogin(vport); | |
5750 | else | |
5751 | lpfc_do_scr_ns_plogi(phba, vport); | |
5752 | } | |
fa4066b6 JS |
5753 | |
5754 | /* Now, we decrement the ndlp reference count held for this | |
5755 | * callback function | |
5756 | */ | |
5757 | lpfc_nlp_put(ndlp); | |
5758 | ||
92d7f7b0 JS |
5759 | mempool_free(pmb, phba->mbox_mem_pool); |
5760 | return; | |
5761 | } | |
5762 | ||
e59058c4 JS |
5763 | /** |
5764 | * lpfc_register_new_vport: Register a new vport with a HBA. | |
5765 | * @phba: pointer to lpfc hba data structure. | |
5766 | * @vport: pointer to a host virtual N_Port data structure. | |
5767 | * @ndlp: pointer to a node-list data structure. | |
5768 | * | |
5769 | * This routine registers the @vport as a new virtual port with a HBA. | |
5770 | * It is done through a registering vpi mailbox command. | |
5771 | **/ | |
a6ababd2 | 5772 | static void |
92d7f7b0 JS |
5773 | lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, |
5774 | struct lpfc_nodelist *ndlp) | |
5775 | { | |
09372820 | 5776 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
92d7f7b0 JS |
5777 | LPFC_MBOXQ_t *mbox; |
5778 | ||
5779 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
5780 | if (mbox) { | |
5781 | lpfc_reg_vpi(phba, vport->vpi, vport->fc_myDID, mbox); | |
5782 | mbox->vport = vport; | |
5783 | mbox->context2 = lpfc_nlp_get(ndlp); | |
5784 | mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; | |
0b727fea | 5785 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
92d7f7b0 | 5786 | == MBX_NOT_FINISHED) { |
fa4066b6 JS |
5787 | /* mailbox command not success, decrement ndlp |
5788 | * reference count for this command | |
5789 | */ | |
5790 | lpfc_nlp_put(ndlp); | |
92d7f7b0 | 5791 | mempool_free(mbox, phba->mbox_mem_pool); |
92d7f7b0 | 5792 | |
e8b62011 JS |
5793 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
5794 | "0253 Register VPI: Can't send mbox\n"); | |
fa4066b6 | 5795 | goto mbox_err_exit; |
92d7f7b0 JS |
5796 | } |
5797 | } else { | |
e8b62011 JS |
5798 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
5799 | "0254 Register VPI: no memory\n"); | |
fa4066b6 | 5800 | goto mbox_err_exit; |
92d7f7b0 | 5801 | } |
fa4066b6 JS |
5802 | return; |
5803 | ||
5804 | mbox_err_exit: | |
5805 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
5806 | spin_lock_irq(shost->host_lock); | |
5807 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; | |
5808 | spin_unlock_irq(shost->host_lock); | |
5809 | return; | |
92d7f7b0 JS |
5810 | } |
5811 | ||
e59058c4 JS |
5812 | /** |
5813 | * lpfc_cmpl_els_fdisc: Completion function for fdisc iocb command. | |
5814 | * @phba: pointer to lpfc hba data structure. | |
5815 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5816 | * @rspiocb: pointer to lpfc response iocb data structure. | |
5817 | * | |
5818 | * This routine is the completion callback function to a Fabric Discover | |
5819 | * (FDISC) ELS command. Since all the FDISC ELS commands are issued | |
5820 | * single threaded, each FDISC completion callback function will reset | |
5821 | * the discovery timer for all vports such that the timers will not get | |
5822 | * unnecessary timeout. The function checks the FDISC IOCB status. If error | |
5823 | * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the | |
5824 | * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID | |
5825 | * assigned to the vport has been changed with the completion of the FDISC | |
5826 | * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index) | |
5827 | * are unregistered from the HBA, and then the lpfc_register_new_vport() | |
5828 | * routine is invoked to register new vport with the HBA. Otherwise, the | |
5829 | * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name | |
5830 | * Server for State Change Request (SCR). | |
5831 | **/ | |
92d7f7b0 JS |
5832 | static void |
5833 | lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
5834 | struct lpfc_iocbq *rspiocb) | |
5835 | { | |
5836 | struct lpfc_vport *vport = cmdiocb->vport; | |
5837 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
5838 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
5839 | struct lpfc_nodelist *np; | |
5840 | struct lpfc_nodelist *next_np; | |
5841 | IOCB_t *irsp = &rspiocb->iocb; | |
5842 | struct lpfc_iocbq *piocb; | |
5843 | ||
e8b62011 JS |
5844 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5845 | "0123 FDISC completes. x%x/x%x prevDID: x%x\n", | |
5846 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
5847 | vport->fc_prevDID); | |
92d7f7b0 JS |
5848 | /* Since all FDISCs are being single threaded, we |
5849 | * must reset the discovery timer for ALL vports | |
5850 | * waiting to send FDISC when one completes. | |
5851 | */ | |
5852 | list_for_each_entry(piocb, &phba->fabric_iocb_list, list) { | |
5853 | lpfc_set_disctmo(piocb->vport); | |
5854 | } | |
5855 | ||
858c9f6c JS |
5856 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
5857 | "FDISC cmpl: status:x%x/x%x prevdid:x%x", | |
5858 | irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID); | |
5859 | ||
92d7f7b0 JS |
5860 | if (irsp->ulpStatus) { |
5861 | /* Check for retry */ | |
5862 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) | |
5863 | goto out; | |
92d7f7b0 | 5864 | /* FDISC failed */ |
e8b62011 | 5865 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 5866 | "0126 FDISC failed. (%d/%d)\n", |
e8b62011 | 5867 | irsp->ulpStatus, irsp->un.ulpWord[4]); |
d7c255b2 JS |
5868 | goto fdisc_failed; |
5869 | } | |
92d7f7b0 JS |
5870 | if (vport->fc_vport->vport_state == FC_VPORT_INITIALIZING) |
5871 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
92d7f7b0 JS |
5872 | lpfc_nlp_put(ndlp); |
5873 | /* giving up on FDISC. Cancel discovery timer */ | |
5874 | lpfc_can_disctmo(vport); | |
d7c255b2 JS |
5875 | spin_lock_irq(shost->host_lock); |
5876 | vport->fc_flag |= FC_FABRIC; | |
5877 | if (vport->phba->fc_topology == TOPOLOGY_LOOP) | |
5878 | vport->fc_flag |= FC_PUBLIC_LOOP; | |
5879 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 | 5880 | |
d7c255b2 JS |
5881 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
5882 | lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); | |
5883 | if ((vport->fc_prevDID != vport->fc_myDID) && | |
5884 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
5885 | /* If our NportID changed, we need to ensure all | |
5886 | * remaining NPORTs get unreg_login'ed so we can | |
5887 | * issue unreg_vpi. | |
5888 | */ | |
5889 | list_for_each_entry_safe(np, next_np, | |
5890 | &vport->fc_nodes, nlp_listp) { | |
5891 | if (!NLP_CHK_NODE_ACT(ndlp) || | |
5892 | (np->nlp_state != NLP_STE_NPR_NODE) || | |
5893 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
5894 | continue; | |
09372820 | 5895 | spin_lock_irq(shost->host_lock); |
d7c255b2 | 5896 | np->nlp_flag &= ~NLP_NPR_ADISC; |
09372820 | 5897 | spin_unlock_irq(shost->host_lock); |
d7c255b2 | 5898 | lpfc_unreg_rpi(vport, np); |
92d7f7b0 | 5899 | } |
d7c255b2 JS |
5900 | lpfc_mbx_unreg_vpi(vport); |
5901 | spin_lock_irq(shost->host_lock); | |
5902 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
5903 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
5904 | } |
5905 | ||
d7c255b2 JS |
5906 | if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) |
5907 | lpfc_register_new_vport(phba, vport, ndlp); | |
5908 | else | |
5909 | lpfc_do_scr_ns_plogi(phba, vport); | |
5910 | goto out; | |
5911 | fdisc_failed: | |
5912 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
5913 | /* Cancel discovery timer */ | |
5914 | lpfc_can_disctmo(vport); | |
5915 | lpfc_nlp_put(ndlp); | |
92d7f7b0 JS |
5916 | out: |
5917 | lpfc_els_free_iocb(phba, cmdiocb); | |
5918 | } | |
5919 | ||
e59058c4 JS |
5920 | /** |
5921 | * lpfc_issue_els_fdisc: Issue a fdisc iocb command. | |
5922 | * @vport: pointer to a virtual N_Port data structure. | |
5923 | * @ndlp: pointer to a node-list data structure. | |
5924 | * @retry: number of retries to the command IOCB. | |
5925 | * | |
5926 | * This routine prepares and issues a Fabric Discover (FDISC) IOCB to | |
5927 | * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb() | |
5928 | * routine to issue the IOCB, which makes sure only one outstanding fabric | |
5929 | * IOCB will be sent off HBA at any given time. | |
5930 | * | |
5931 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5932 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5933 | * will be stored into the context1 field of the IOCB for the completion | |
5934 | * callback function to the FDISC ELS command. | |
5935 | * | |
5936 | * Return code | |
5937 | * 0 - Successfully issued fdisc iocb command | |
5938 | * 1 - Failed to issue fdisc iocb command | |
5939 | **/ | |
a6ababd2 | 5940 | static int |
92d7f7b0 JS |
5941 | lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
5942 | uint8_t retry) | |
5943 | { | |
5944 | struct lpfc_hba *phba = vport->phba; | |
5945 | IOCB_t *icmd; | |
5946 | struct lpfc_iocbq *elsiocb; | |
5947 | struct serv_parm *sp; | |
5948 | uint8_t *pcmd; | |
5949 | uint16_t cmdsize; | |
5950 | int did = ndlp->nlp_DID; | |
5951 | int rc; | |
92d7f7b0 JS |
5952 | |
5953 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); | |
5954 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, | |
5955 | ELS_CMD_FDISC); | |
5956 | if (!elsiocb) { | |
92d7f7b0 | 5957 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
5958 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
5959 | "0255 Issue FDISC: no IOCB\n"); | |
92d7f7b0 JS |
5960 | return 1; |
5961 | } | |
5962 | ||
5963 | icmd = &elsiocb->iocb; | |
5964 | icmd->un.elsreq64.myID = 0; | |
5965 | icmd->un.elsreq64.fl = 1; | |
5966 | ||
5967 | /* For FDISC, Let FDISC rsp set the NPortID for this VPI */ | |
5968 | icmd->ulpCt_h = 1; | |
5969 | icmd->ulpCt_l = 0; | |
5970 | ||
5971 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5972 | *((uint32_t *) (pcmd)) = ELS_CMD_FDISC; | |
5973 | pcmd += sizeof(uint32_t); /* CSP Word 1 */ | |
5974 | memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm)); | |
5975 | sp = (struct serv_parm *) pcmd; | |
5976 | /* Setup CSPs accordingly for Fabric */ | |
5977 | sp->cmn.e_d_tov = 0; | |
5978 | sp->cmn.w2.r_a_tov = 0; | |
5979 | sp->cls1.classValid = 0; | |
5980 | sp->cls2.seqDelivery = 1; | |
5981 | sp->cls3.seqDelivery = 1; | |
5982 | ||
5983 | pcmd += sizeof(uint32_t); /* CSP Word 2 */ | |
5984 | pcmd += sizeof(uint32_t); /* CSP Word 3 */ | |
5985 | pcmd += sizeof(uint32_t); /* CSP Word 4 */ | |
5986 | pcmd += sizeof(uint32_t); /* Port Name */ | |
5987 | memcpy(pcmd, &vport->fc_portname, 8); | |
5988 | pcmd += sizeof(uint32_t); /* Node Name */ | |
5989 | pcmd += sizeof(uint32_t); /* Node Name */ | |
5990 | memcpy(pcmd, &vport->fc_nodename, 8); | |
5991 | ||
5992 | lpfc_set_disctmo(vport); | |
5993 | ||
5994 | phba->fc_stat.elsXmitFDISC++; | |
5995 | elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc; | |
5996 | ||
858c9f6c JS |
5997 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
5998 | "Issue FDISC: did:x%x", | |
5999 | did, 0, 0); | |
6000 | ||
92d7f7b0 JS |
6001 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
6002 | if (rc == IOCB_ERROR) { | |
6003 | lpfc_els_free_iocb(phba, elsiocb); | |
92d7f7b0 | 6004 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
6005 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6006 | "0256 Issue FDISC: Cannot send IOCB\n"); | |
92d7f7b0 JS |
6007 | return 1; |
6008 | } | |
6009 | lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING); | |
6010 | vport->port_state = LPFC_FDISC; | |
6011 | return 0; | |
6012 | } | |
6013 | ||
e59058c4 JS |
6014 | /** |
6015 | * lpfc_cmpl_els_npiv_logo: Completion function with vport logo. | |
6016 | * @phba: pointer to lpfc hba data structure. | |
6017 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
6018 | * @rspiocb: pointer to lpfc response iocb data structure. | |
6019 | * | |
6020 | * This routine is the completion callback function to the issuing of a LOGO | |
6021 | * ELS command off a vport. It frees the command IOCB and then decrement the | |
6022 | * reference count held on ndlp for this completion function, indicating that | |
6023 | * the reference to the ndlp is no long needed. Note that the | |
6024 | * lpfc_els_free_iocb() routine decrements the ndlp reference held for this | |
6025 | * callback function and an additional explicit ndlp reference decrementation | |
6026 | * will trigger the actual release of the ndlp. | |
6027 | **/ | |
92d7f7b0 JS |
6028 | static void |
6029 | lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
6030 | struct lpfc_iocbq *rspiocb) | |
6031 | { | |
6032 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c | 6033 | IOCB_t *irsp; |
e47c9093 JS |
6034 | struct lpfc_nodelist *ndlp; |
6035 | ndlp = (struct lpfc_nodelist *)cmdiocb->context1; | |
858c9f6c JS |
6036 | |
6037 | irsp = &rspiocb->iocb; | |
6038 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
6039 | "LOGO npiv cmpl: status:x%x/x%x did:x%x", | |
6040 | irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID); | |
92d7f7b0 JS |
6041 | |
6042 | lpfc_els_free_iocb(phba, cmdiocb); | |
6043 | vport->unreg_vpi_cmpl = VPORT_ERROR; | |
e47c9093 JS |
6044 | |
6045 | /* Trigger the release of the ndlp after logo */ | |
6046 | lpfc_nlp_put(ndlp); | |
92d7f7b0 JS |
6047 | } |
6048 | ||
e59058c4 JS |
6049 | /** |
6050 | * lpfc_issue_els_npiv_logo: Issue a logo off a vport. | |
6051 | * @vport: pointer to a virtual N_Port data structure. | |
6052 | * @ndlp: pointer to a node-list data structure. | |
6053 | * | |
6054 | * This routine issues a LOGO ELS command to an @ndlp off a @vport. | |
6055 | * | |
6056 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
6057 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
6058 | * will be stored into the context1 field of the IOCB for the completion | |
6059 | * callback function to the LOGO ELS command. | |
6060 | * | |
6061 | * Return codes | |
6062 | * 0 - Successfully issued logo off the @vport | |
6063 | * 1 - Failed to issue logo off the @vport | |
6064 | **/ | |
92d7f7b0 JS |
6065 | int |
6066 | lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) | |
6067 | { | |
6068 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6069 | struct lpfc_hba *phba = vport->phba; | |
6070 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
6071 | IOCB_t *icmd; | |
6072 | struct lpfc_iocbq *elsiocb; | |
6073 | uint8_t *pcmd; | |
6074 | uint16_t cmdsize; | |
6075 | ||
6076 | cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name); | |
6077 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID, | |
6078 | ELS_CMD_LOGO); | |
6079 | if (!elsiocb) | |
6080 | return 1; | |
6081 | ||
6082 | icmd = &elsiocb->iocb; | |
6083 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
6084 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
6085 | pcmd += sizeof(uint32_t); | |
6086 | ||
6087 | /* Fill in LOGO payload */ | |
6088 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); | |
6089 | pcmd += sizeof(uint32_t); | |
6090 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
6091 | ||
858c9f6c JS |
6092 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
6093 | "Issue LOGO npiv did:x%x flg:x%x", | |
6094 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
6095 | ||
92d7f7b0 JS |
6096 | elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo; |
6097 | spin_lock_irq(shost->host_lock); | |
6098 | ndlp->nlp_flag |= NLP_LOGO_SND; | |
6099 | spin_unlock_irq(shost->host_lock); | |
6100 | if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { | |
6101 | spin_lock_irq(shost->host_lock); | |
6102 | ndlp->nlp_flag &= ~NLP_LOGO_SND; | |
6103 | spin_unlock_irq(shost->host_lock); | |
6104 | lpfc_els_free_iocb(phba, elsiocb); | |
6105 | return 1; | |
6106 | } | |
6107 | return 0; | |
6108 | } | |
6109 | ||
e59058c4 JS |
6110 | /** |
6111 | * lpfc_fabric_block_timeout: Handler function to the fabric block timer. | |
6112 | * @ptr: holder for the timer function associated data. | |
6113 | * | |
6114 | * This routine is invoked by the fabric iocb block timer after | |
6115 | * timeout. It posts the fabric iocb block timeout event by setting the | |
6116 | * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes | |
6117 | * lpfc_worker_wake_up() routine to wake up the worker thread. It is for | |
6118 | * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the | |
6119 | * posted event WORKER_FABRIC_BLOCK_TMO. | |
6120 | **/ | |
92d7f7b0 JS |
6121 | void |
6122 | lpfc_fabric_block_timeout(unsigned long ptr) | |
6123 | { | |
6124 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; | |
6125 | unsigned long iflags; | |
6126 | uint32_t tmo_posted; | |
5e9d9b82 | 6127 | |
92d7f7b0 JS |
6128 | spin_lock_irqsave(&phba->pport->work_port_lock, iflags); |
6129 | tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO; | |
6130 | if (!tmo_posted) | |
6131 | phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO; | |
6132 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); | |
6133 | ||
5e9d9b82 JS |
6134 | if (!tmo_posted) |
6135 | lpfc_worker_wake_up(phba); | |
6136 | return; | |
92d7f7b0 JS |
6137 | } |
6138 | ||
e59058c4 JS |
6139 | /** |
6140 | * lpfc_resume_fabric_iocbs: Issue a fabric iocb from driver internal list. | |
6141 | * @phba: pointer to lpfc hba data structure. | |
6142 | * | |
6143 | * This routine issues one fabric iocb from the driver internal list to | |
6144 | * the HBA. It first checks whether it's ready to issue one fabric iocb to | |
6145 | * the HBA (whether there is no outstanding fabric iocb). If so, it shall | |
6146 | * remove one pending fabric iocb from the driver internal list and invokes | |
6147 | * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA. | |
6148 | **/ | |
92d7f7b0 JS |
6149 | static void |
6150 | lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) | |
6151 | { | |
6152 | struct lpfc_iocbq *iocb; | |
6153 | unsigned long iflags; | |
6154 | int ret; | |
6155 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
6156 | IOCB_t *cmd; | |
6157 | ||
6158 | repeat: | |
6159 | iocb = NULL; | |
6160 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7f5f3d0d | 6161 | /* Post any pending iocb to the SLI layer */ |
92d7f7b0 JS |
6162 | if (atomic_read(&phba->fabric_iocb_count) == 0) { |
6163 | list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb), | |
6164 | list); | |
6165 | if (iocb) | |
7f5f3d0d | 6166 | /* Increment fabric iocb count to hold the position */ |
92d7f7b0 JS |
6167 | atomic_inc(&phba->fabric_iocb_count); |
6168 | } | |
6169 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
6170 | if (iocb) { | |
6171 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
6172 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
6173 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
6174 | ||
858c9f6c JS |
6175 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
6176 | "Fabric sched1: ste:x%x", | |
6177 | iocb->vport->port_state, 0, 0); | |
6178 | ||
92d7f7b0 JS |
6179 | ret = lpfc_sli_issue_iocb(phba, pring, iocb, 0); |
6180 | ||
6181 | if (ret == IOCB_ERROR) { | |
6182 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
6183 | iocb->fabric_iocb_cmpl = NULL; | |
6184 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
6185 | cmd = &iocb->iocb; | |
6186 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
6187 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
6188 | iocb->iocb_cmpl(phba, iocb, iocb); | |
6189 | ||
6190 | atomic_dec(&phba->fabric_iocb_count); | |
6191 | goto repeat; | |
6192 | } | |
6193 | } | |
6194 | ||
6195 | return; | |
6196 | } | |
6197 | ||
e59058c4 JS |
6198 | /** |
6199 | * lpfc_unblock_fabric_iocbs: Unblock issuing fabric iocb command. | |
6200 | * @phba: pointer to lpfc hba data structure. | |
6201 | * | |
6202 | * This routine unblocks the issuing fabric iocb command. The function | |
6203 | * will clear the fabric iocb block bit and then invoke the routine | |
6204 | * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb | |
6205 | * from the driver internal fabric iocb list. | |
6206 | **/ | |
92d7f7b0 JS |
6207 | void |
6208 | lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) | |
6209 | { | |
6210 | clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
6211 | ||
6212 | lpfc_resume_fabric_iocbs(phba); | |
6213 | return; | |
6214 | } | |
6215 | ||
e59058c4 JS |
6216 | /** |
6217 | * lpfc_block_fabric_iocbs: Block issuing fabric iocb command. | |
6218 | * @phba: pointer to lpfc hba data structure. | |
6219 | * | |
6220 | * This routine blocks the issuing fabric iocb for a specified amount of | |
6221 | * time (currently 100 ms). This is done by set the fabric iocb block bit | |
6222 | * and set up a timeout timer for 100ms. When the block bit is set, no more | |
6223 | * fabric iocb will be issued out of the HBA. | |
6224 | **/ | |
92d7f7b0 JS |
6225 | static void |
6226 | lpfc_block_fabric_iocbs(struct lpfc_hba *phba) | |
6227 | { | |
6228 | int blocked; | |
6229 | ||
6230 | blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7f5f3d0d | 6231 | /* Start a timer to unblock fabric iocbs after 100ms */ |
92d7f7b0 JS |
6232 | if (!blocked) |
6233 | mod_timer(&phba->fabric_block_timer, jiffies + HZ/10 ); | |
6234 | ||
6235 | return; | |
6236 | } | |
6237 | ||
e59058c4 JS |
6238 | /** |
6239 | * lpfc_cmpl_fabric_iocb: Completion callback function for fabric iocb. | |
6240 | * @phba: pointer to lpfc hba data structure. | |
6241 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
6242 | * @rspiocb: pointer to lpfc response iocb data structure. | |
6243 | * | |
6244 | * This routine is the callback function that is put to the fabric iocb's | |
6245 | * callback function pointer (iocb->iocb_cmpl). The original iocb's callback | |
6246 | * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback | |
6247 | * function first restores and invokes the original iocb's callback function | |
6248 | * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next | |
6249 | * fabric bound iocb from the driver internal fabric iocb list onto the wire. | |
6250 | **/ | |
92d7f7b0 JS |
6251 | static void |
6252 | lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
6253 | struct lpfc_iocbq *rspiocb) | |
6254 | { | |
6255 | struct ls_rjt stat; | |
6256 | ||
6257 | if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC) | |
6258 | BUG(); | |
6259 | ||
6260 | switch (rspiocb->iocb.ulpStatus) { | |
6261 | case IOSTAT_NPORT_RJT: | |
6262 | case IOSTAT_FABRIC_RJT: | |
6263 | if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
6264 | lpfc_block_fabric_iocbs(phba); | |
ed957684 | 6265 | } |
92d7f7b0 JS |
6266 | break; |
6267 | ||
6268 | case IOSTAT_NPORT_BSY: | |
6269 | case IOSTAT_FABRIC_BSY: | |
6270 | lpfc_block_fabric_iocbs(phba); | |
6271 | break; | |
6272 | ||
6273 | case IOSTAT_LS_RJT: | |
6274 | stat.un.lsRjtError = | |
6275 | be32_to_cpu(rspiocb->iocb.un.ulpWord[4]); | |
6276 | if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) || | |
6277 | (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY)) | |
6278 | lpfc_block_fabric_iocbs(phba); | |
6279 | break; | |
6280 | } | |
6281 | ||
6282 | if (atomic_read(&phba->fabric_iocb_count) == 0) | |
6283 | BUG(); | |
6284 | ||
6285 | cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl; | |
6286 | cmdiocb->fabric_iocb_cmpl = NULL; | |
6287 | cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
6288 | cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb); | |
6289 | ||
6290 | atomic_dec(&phba->fabric_iocb_count); | |
6291 | if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) { | |
7f5f3d0d JS |
6292 | /* Post any pending iocbs to HBA */ |
6293 | lpfc_resume_fabric_iocbs(phba); | |
92d7f7b0 JS |
6294 | } |
6295 | } | |
6296 | ||
e59058c4 JS |
6297 | /** |
6298 | * lpfc_issue_fabric_iocb: Issue a fabric iocb command. | |
6299 | * @phba: pointer to lpfc hba data structure. | |
6300 | * @iocb: pointer to lpfc command iocb data structure. | |
6301 | * | |
6302 | * This routine is used as the top-level API for issuing a fabric iocb command | |
6303 | * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver | |
6304 | * function makes sure that only one fabric bound iocb will be outstanding at | |
6305 | * any given time. As such, this function will first check to see whether there | |
6306 | * is already an outstanding fabric iocb on the wire. If so, it will put the | |
6307 | * newly issued iocb onto the driver internal fabric iocb list, waiting to be | |
6308 | * issued later. Otherwise, it will issue the iocb on the wire and update the | |
6309 | * fabric iocb count it indicate that there is one fabric iocb on the wire. | |
6310 | * | |
6311 | * Note, this implementation has a potential sending out fabric IOCBs out of | |
6312 | * order. The problem is caused by the construction of the "ready" boolen does | |
6313 | * not include the condition that the internal fabric IOCB list is empty. As | |
6314 | * such, it is possible a fabric IOCB issued by this routine might be "jump" | |
6315 | * ahead of the fabric IOCBs in the internal list. | |
6316 | * | |
6317 | * Return code | |
6318 | * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully | |
6319 | * IOCB_ERROR - failed to issue fabric iocb | |
6320 | **/ | |
a6ababd2 | 6321 | static int |
92d7f7b0 JS |
6322 | lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) |
6323 | { | |
6324 | unsigned long iflags; | |
6325 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
6326 | int ready; | |
6327 | int ret; | |
6328 | ||
6329 | if (atomic_read(&phba->fabric_iocb_count) > 1) | |
6330 | BUG(); | |
6331 | ||
6332 | spin_lock_irqsave(&phba->hbalock, iflags); | |
6333 | ready = atomic_read(&phba->fabric_iocb_count) == 0 && | |
6334 | !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
6335 | ||
7f5f3d0d JS |
6336 | if (ready) |
6337 | /* Increment fabric iocb count to hold the position */ | |
6338 | atomic_inc(&phba->fabric_iocb_count); | |
92d7f7b0 JS |
6339 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
6340 | if (ready) { | |
6341 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
6342 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
6343 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
6344 | ||
858c9f6c JS |
6345 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
6346 | "Fabric sched2: ste:x%x", | |
6347 | iocb->vport->port_state, 0, 0); | |
6348 | ||
92d7f7b0 JS |
6349 | ret = lpfc_sli_issue_iocb(phba, pring, iocb, 0); |
6350 | ||
6351 | if (ret == IOCB_ERROR) { | |
6352 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
6353 | iocb->fabric_iocb_cmpl = NULL; | |
6354 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
6355 | atomic_dec(&phba->fabric_iocb_count); | |
6356 | } | |
6357 | } else { | |
6358 | spin_lock_irqsave(&phba->hbalock, iflags); | |
6359 | list_add_tail(&iocb->list, &phba->fabric_iocb_list); | |
6360 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
6361 | ret = IOCB_SUCCESS; | |
6362 | } | |
6363 | return ret; | |
6364 | } | |
6365 | ||
e59058c4 JS |
6366 | /** |
6367 | * lpfc_fabric_abort_vport: Abort a vport's iocbs from driver fabric iocb list. | |
6368 | * @vport: pointer to a virtual N_Port data structure. | |
6369 | * | |
6370 | * This routine aborts all the IOCBs associated with a @vport from the | |
6371 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
6372 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
6373 | * list, removes each IOCB associated with the @vport off the list, set the | |
6374 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
6375 | * associated with the IOCB. | |
6376 | **/ | |
a6ababd2 | 6377 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport) |
92d7f7b0 JS |
6378 | { |
6379 | LIST_HEAD(completions); | |
6380 | struct lpfc_hba *phba = vport->phba; | |
6381 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
6382 | IOCB_t *cmd; | |
6383 | ||
6384 | spin_lock_irq(&phba->hbalock); | |
6385 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
6386 | list) { | |
6387 | ||
6388 | if (piocb->vport != vport) | |
6389 | continue; | |
6390 | ||
6391 | list_move_tail(&piocb->list, &completions); | |
6392 | } | |
6393 | spin_unlock_irq(&phba->hbalock); | |
6394 | ||
6395 | while (!list_empty(&completions)) { | |
6396 | piocb = list_get_first(&completions, struct lpfc_iocbq, list); | |
6397 | list_del_init(&piocb->list); | |
6398 | ||
6399 | cmd = &piocb->iocb; | |
6400 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
6401 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
6402 | (piocb->iocb_cmpl) (phba, piocb, piocb); | |
6403 | } | |
6404 | } | |
6405 | ||
e59058c4 JS |
6406 | /** |
6407 | * lpfc_fabric_abort_nport: Abort a ndlp's iocbs from driver fabric iocb list. | |
6408 | * @ndlp: pointer to a node-list data structure. | |
6409 | * | |
6410 | * This routine aborts all the IOCBs associated with an @ndlp from the | |
6411 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
6412 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
6413 | * list, removes each IOCB associated with the @ndlp off the list, set the | |
6414 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
6415 | * associated with the IOCB. | |
6416 | **/ | |
92d7f7b0 JS |
6417 | void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) |
6418 | { | |
6419 | LIST_HEAD(completions); | |
6420 | struct lpfc_hba *phba = ndlp->vport->phba; | |
6421 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
6422 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
6423 | IOCB_t *cmd; | |
6424 | ||
6425 | spin_lock_irq(&phba->hbalock); | |
6426 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
6427 | list) { | |
6428 | if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) { | |
6429 | ||
6430 | list_move_tail(&piocb->list, &completions); | |
ed957684 | 6431 | } |
dea3101e | 6432 | } |
92d7f7b0 JS |
6433 | spin_unlock_irq(&phba->hbalock); |
6434 | ||
6435 | while (!list_empty(&completions)) { | |
6436 | piocb = list_get_first(&completions, struct lpfc_iocbq, list); | |
6437 | list_del_init(&piocb->list); | |
6438 | ||
6439 | cmd = &piocb->iocb; | |
6440 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
6441 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
6442 | (piocb->iocb_cmpl) (phba, piocb, piocb); | |
6443 | } | |
6444 | } | |
6445 | ||
e59058c4 JS |
6446 | /** |
6447 | * lpfc_fabric_abort_hba: Abort all iocbs on driver fabric iocb list. | |
6448 | * @phba: pointer to lpfc hba data structure. | |
6449 | * | |
6450 | * This routine aborts all the IOCBs currently on the driver internal | |
6451 | * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS | |
6452 | * IOCB ring. This function takes the entire IOCB list off the fabric IOCB | |
6453 | * list, removes IOCBs off the list, set the status feild to | |
6454 | * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with | |
6455 | * the IOCB. | |
6456 | **/ | |
92d7f7b0 JS |
6457 | void lpfc_fabric_abort_hba(struct lpfc_hba *phba) |
6458 | { | |
6459 | LIST_HEAD(completions); | |
6460 | struct lpfc_iocbq *piocb; | |
6461 | IOCB_t *cmd; | |
6462 | ||
6463 | spin_lock_irq(&phba->hbalock); | |
6464 | list_splice_init(&phba->fabric_iocb_list, &completions); | |
6465 | spin_unlock_irq(&phba->hbalock); | |
6466 | ||
6467 | while (!list_empty(&completions)) { | |
6468 | piocb = list_get_first(&completions, struct lpfc_iocbq, list); | |
6469 | list_del_init(&piocb->list); | |
6470 | ||
6471 | cmd = &piocb->iocb; | |
6472 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
6473 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
6474 | (piocb->iocb_cmpl) (phba, piocb, piocb); | |
6475 | } | |
dea3101e | 6476 | } |