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