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