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