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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: | |
f0d9bccc JS |
180 | elsiocb->iocb_flag |= |
181 | ((LPFC_ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT) | |
c868595d JS |
182 | & LPFC_FIP_ELS_ID_MASK); |
183 | break; | |
184 | case ELS_CMD_FDISC: | |
f0d9bccc JS |
185 | elsiocb->iocb_flag |= |
186 | ((LPFC_ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT) | |
c868595d JS |
187 | & LPFC_FIP_ELS_ID_MASK); |
188 | break; | |
189 | case ELS_CMD_LOGO: | |
f0d9bccc JS |
190 | elsiocb->iocb_flag |= |
191 | ((LPFC_ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT) | |
c868595d JS |
192 | & LPFC_FIP_ELS_ID_MASK); |
193 | break; | |
194 | } | |
0c287589 | 195 | else |
c868595d | 196 | elsiocb->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK; |
0c287589 | 197 | |
dea3101e JB |
198 | icmd = &elsiocb->iocb; |
199 | ||
200 | /* fill in BDEs for command */ | |
201 | /* Allocate buffer for command payload */ | |
98c9ea5c JS |
202 | pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
203 | if (pcmd) | |
204 | pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys); | |
fa4066b6 JS |
205 | if (!pcmd || !pcmd->virt) |
206 | goto els_iocb_free_pcmb_exit; | |
dea3101e JB |
207 | |
208 | INIT_LIST_HEAD(&pcmd->list); | |
209 | ||
210 | /* Allocate buffer for response payload */ | |
211 | if (expectRsp) { | |
92d7f7b0 | 212 | prsp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
dea3101e JB |
213 | if (prsp) |
214 | prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, | |
215 | &prsp->phys); | |
fa4066b6 JS |
216 | if (!prsp || !prsp->virt) |
217 | goto els_iocb_free_prsp_exit; | |
dea3101e | 218 | INIT_LIST_HEAD(&prsp->list); |
e47c9093 | 219 | } else |
dea3101e | 220 | prsp = NULL; |
dea3101e JB |
221 | |
222 | /* Allocate buffer for Buffer ptr list */ | |
92d7f7b0 | 223 | pbuflist = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
dea3101e | 224 | if (pbuflist) |
ed957684 JS |
225 | pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI, |
226 | &pbuflist->phys); | |
fa4066b6 JS |
227 | if (!pbuflist || !pbuflist->virt) |
228 | goto els_iocb_free_pbuf_exit; | |
dea3101e JB |
229 | |
230 | INIT_LIST_HEAD(&pbuflist->list); | |
231 | ||
232 | icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys); | |
233 | icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys); | |
34b02dcd | 234 | icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
2e0fef85 | 235 | icmd->un.elsreq64.remoteID = did; /* DID */ |
dea3101e | 236 | if (expectRsp) { |
92d7f7b0 | 237 | icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); |
dea3101e | 238 | icmd->ulpCommand = CMD_ELS_REQUEST64_CR; |
2680eeaa | 239 | icmd->ulpTimeout = phba->fc_ratov * 2; |
dea3101e | 240 | } else { |
92d7f7b0 | 241 | icmd->un.elsreq64.bdl.bdeSize = sizeof(struct ulp_bde64); |
dea3101e JB |
242 | icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX; |
243 | } | |
dea3101e JB |
244 | icmd->ulpBdeCount = 1; |
245 | icmd->ulpLe = 1; | |
246 | icmd->ulpClass = CLASS3; | |
247 | ||
92d7f7b0 JS |
248 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
249 | icmd->un.elsreq64.myID = vport->fc_myDID; | |
250 | ||
251 | /* For ELS_REQUEST64_CR, use the VPI by default */ | |
da0436e9 | 252 | icmd->ulpContext = vport->vpi + phba->vpi_base; |
92d7f7b0 | 253 | icmd->ulpCt_h = 0; |
eada272d JS |
254 | /* The CT field must be 0=INVALID_RPI for the ECHO cmd */ |
255 | if (elscmd == ELS_CMD_ECHO) | |
256 | icmd->ulpCt_l = 0; /* context = invalid RPI */ | |
257 | else | |
258 | icmd->ulpCt_l = 1; /* context = VPI */ | |
92d7f7b0 JS |
259 | } |
260 | ||
dea3101e JB |
261 | bpl = (struct ulp_bde64 *) pbuflist->virt; |
262 | bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys)); | |
263 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys)); | |
264 | bpl->tus.f.bdeSize = cmdSize; | |
265 | bpl->tus.f.bdeFlags = 0; | |
266 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
267 | ||
268 | if (expectRsp) { | |
269 | bpl++; | |
270 | bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys)); | |
271 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys)); | |
272 | bpl->tus.f.bdeSize = FCELSSIZE; | |
34b02dcd | 273 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; |
dea3101e JB |
274 | bpl->tus.w = le32_to_cpu(bpl->tus.w); |
275 | } | |
276 | ||
fa4066b6 | 277 | /* prevent preparing iocb with NULL ndlp reference */ |
51ef4c26 | 278 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
fa4066b6 JS |
279 | if (!elsiocb->context1) |
280 | goto els_iocb_free_pbuf_exit; | |
329f9bc7 JS |
281 | elsiocb->context2 = pcmd; |
282 | elsiocb->context3 = pbuflist; | |
dea3101e | 283 | elsiocb->retry = retry; |
2e0fef85 | 284 | elsiocb->vport = vport; |
dea3101e JB |
285 | elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT; |
286 | ||
287 | if (prsp) { | |
288 | list_add(&prsp->list, &pcmd->list); | |
289 | } | |
dea3101e JB |
290 | if (expectRsp) { |
291 | /* Xmit ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
292 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
293 | "0116 Xmit ELS command x%x to remote " | |
294 | "NPORT x%x I/O tag: x%x, port state: x%x\n", | |
295 | elscmd, did, elsiocb->iotag, | |
296 | vport->port_state); | |
dea3101e JB |
297 | } else { |
298 | /* Xmit ELS response <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
299 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
300 | "0117 Xmit ELS response x%x to remote " | |
301 | "NPORT x%x I/O tag: x%x, size: x%x\n", | |
302 | elscmd, ndlp->nlp_DID, elsiocb->iotag, | |
303 | cmdSize); | |
dea3101e | 304 | } |
c9f8735b | 305 | return elsiocb; |
dea3101e | 306 | |
fa4066b6 | 307 | els_iocb_free_pbuf_exit: |
eaf15d5b JS |
308 | if (expectRsp) |
309 | lpfc_mbuf_free(phba, prsp->virt, prsp->phys); | |
fa4066b6 JS |
310 | kfree(pbuflist); |
311 | ||
312 | els_iocb_free_prsp_exit: | |
313 | lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); | |
314 | kfree(prsp); | |
315 | ||
316 | els_iocb_free_pcmb_exit: | |
317 | kfree(pcmd); | |
318 | lpfc_sli_release_iocbq(phba, elsiocb); | |
319 | return NULL; | |
320 | } | |
dea3101e | 321 | |
e59058c4 | 322 | /** |
3621a710 | 323 | * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport |
e59058c4 JS |
324 | * @vport: pointer to a host virtual N_Port data structure. |
325 | * | |
326 | * This routine issues a fabric registration login for a @vport. An | |
327 | * active ndlp node with Fabric_DID must already exist for this @vport. | |
328 | * The routine invokes two mailbox commands to carry out fabric registration | |
329 | * login through the HBA firmware: the first mailbox command requests the | |
330 | * HBA to perform link configuration for the @vport; and the second mailbox | |
331 | * command requests the HBA to perform the actual fabric registration login | |
332 | * with the @vport. | |
333 | * | |
334 | * Return code | |
335 | * 0 - successfully issued fabric registration login for @vport | |
336 | * -ENXIO -- failed to issue fabric registration login for @vport | |
337 | **/ | |
3772a991 | 338 | int |
92d7f7b0 | 339 | lpfc_issue_fabric_reglogin(struct lpfc_vport *vport) |
dea3101e | 340 | { |
2e0fef85 | 341 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 342 | LPFC_MBOXQ_t *mbox; |
14691150 | 343 | struct lpfc_dmabuf *mp; |
92d7f7b0 JS |
344 | struct lpfc_nodelist *ndlp; |
345 | struct serv_parm *sp; | |
dea3101e | 346 | int rc; |
98c9ea5c | 347 | int err = 0; |
dea3101e | 348 | |
92d7f7b0 JS |
349 | sp = &phba->fc_fabparam; |
350 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
e47c9093 | 351 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
98c9ea5c | 352 | err = 1; |
92d7f7b0 | 353 | goto fail; |
98c9ea5c | 354 | } |
92d7f7b0 JS |
355 | |
356 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
98c9ea5c JS |
357 | if (!mbox) { |
358 | err = 2; | |
92d7f7b0 | 359 | goto fail; |
98c9ea5c | 360 | } |
92d7f7b0 JS |
361 | |
362 | vport->port_state = LPFC_FABRIC_CFG_LINK; | |
363 | lpfc_config_link(phba, mbox); | |
364 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
365 | mbox->vport = vport; | |
366 | ||
0b727fea | 367 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
98c9ea5c JS |
368 | if (rc == MBX_NOT_FINISHED) { |
369 | err = 3; | |
92d7f7b0 | 370 | goto fail_free_mbox; |
98c9ea5c | 371 | } |
92d7f7b0 JS |
372 | |
373 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
98c9ea5c JS |
374 | if (!mbox) { |
375 | err = 4; | |
92d7f7b0 | 376 | goto fail; |
98c9ea5c | 377 | } |
3772a991 | 378 | rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox, 0); |
98c9ea5c JS |
379 | if (rc) { |
380 | err = 5; | |
92d7f7b0 | 381 | goto fail_free_mbox; |
98c9ea5c | 382 | } |
92d7f7b0 JS |
383 | |
384 | mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login; | |
385 | mbox->vport = vport; | |
e47c9093 JS |
386 | /* increment the reference count on ndlp to hold reference |
387 | * for the callback routine. | |
388 | */ | |
92d7f7b0 JS |
389 | mbox->context2 = lpfc_nlp_get(ndlp); |
390 | ||
0b727fea | 391 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
98c9ea5c JS |
392 | if (rc == MBX_NOT_FINISHED) { |
393 | err = 6; | |
92d7f7b0 | 394 | goto fail_issue_reg_login; |
98c9ea5c | 395 | } |
92d7f7b0 JS |
396 | |
397 | return 0; | |
398 | ||
399 | fail_issue_reg_login: | |
e47c9093 JS |
400 | /* decrement the reference count on ndlp just incremented |
401 | * for the failed mbox command. | |
402 | */ | |
92d7f7b0 JS |
403 | lpfc_nlp_put(ndlp); |
404 | mp = (struct lpfc_dmabuf *) mbox->context1; | |
405 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
406 | kfree(mp); | |
407 | fail_free_mbox: | |
408 | mempool_free(mbox, phba->mbox_mem_pool); | |
409 | ||
410 | fail: | |
411 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 | 412 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
98c9ea5c | 413 | "0249 Cannot issue Register Fabric login: Err %d\n", err); |
92d7f7b0 JS |
414 | return -ENXIO; |
415 | } | |
416 | ||
6fb120a7 JS |
417 | /** |
418 | * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login | |
419 | * @vport: pointer to a host virtual N_Port data structure. | |
420 | * | |
421 | * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for | |
422 | * the @vport. This mailbox command is necessary for FCoE only. | |
423 | * | |
424 | * Return code | |
425 | * 0 - successfully issued REG_VFI for @vport | |
426 | * A failure code otherwise. | |
427 | **/ | |
428 | static int | |
429 | lpfc_issue_reg_vfi(struct lpfc_vport *vport) | |
430 | { | |
431 | struct lpfc_hba *phba = vport->phba; | |
432 | LPFC_MBOXQ_t *mboxq; | |
433 | struct lpfc_nodelist *ndlp; | |
434 | struct serv_parm *sp; | |
435 | struct lpfc_dmabuf *dmabuf; | |
436 | int rc = 0; | |
437 | ||
438 | sp = &phba->fc_fabparam; | |
439 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
440 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { | |
441 | rc = -ENODEV; | |
442 | goto fail; | |
443 | } | |
444 | ||
445 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
446 | if (!dmabuf) { | |
447 | rc = -ENOMEM; | |
448 | goto fail; | |
449 | } | |
450 | dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys); | |
451 | if (!dmabuf->virt) { | |
452 | rc = -ENOMEM; | |
453 | goto fail_free_dmabuf; | |
454 | } | |
455 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
456 | if (!mboxq) { | |
457 | rc = -ENOMEM; | |
458 | goto fail_free_coherent; | |
459 | } | |
460 | vport->port_state = LPFC_FABRIC_CFG_LINK; | |
461 | memcpy(dmabuf->virt, &phba->fc_fabparam, sizeof(vport->fc_sparam)); | |
462 | lpfc_reg_vfi(mboxq, vport, dmabuf->phys); | |
463 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi; | |
464 | mboxq->vport = vport; | |
465 | mboxq->context1 = dmabuf; | |
466 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
467 | if (rc == MBX_NOT_FINISHED) { | |
468 | rc = -ENXIO; | |
469 | goto fail_free_mbox; | |
470 | } | |
471 | return 0; | |
472 | ||
473 | fail_free_mbox: | |
474 | mempool_free(mboxq, phba->mbox_mem_pool); | |
475 | fail_free_coherent: | |
476 | lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); | |
477 | fail_free_dmabuf: | |
478 | kfree(dmabuf); | |
479 | fail: | |
480 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
481 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
482 | "0289 Issue Register VFI failed: Err %d\n", rc); | |
483 | return rc; | |
484 | } | |
485 | ||
e59058c4 | 486 | /** |
3621a710 | 487 | * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port |
e59058c4 JS |
488 | * @vport: pointer to a host virtual N_Port data structure. |
489 | * @ndlp: pointer to a node-list data structure. | |
490 | * @sp: pointer to service parameter data structure. | |
491 | * @irsp: pointer to the IOCB within the lpfc response IOCB. | |
492 | * | |
493 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
494 | * function to handle the completion of a Fabric Login (FLOGI) into a fabric | |
495 | * port in a fabric topology. It properly sets up the parameters to the @ndlp | |
496 | * from the IOCB response. It also check the newly assigned N_Port ID to the | |
497 | * @vport against the previously assigned N_Port ID. If it is different from | |
498 | * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine | |
499 | * is invoked on all the remaining nodes with the @vport to unregister the | |
500 | * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin() | |
501 | * is invoked to register login to the fabric. | |
502 | * | |
503 | * Return code | |
504 | * 0 - Success (currently, always return 0) | |
505 | **/ | |
92d7f7b0 JS |
506 | static int |
507 | lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, | |
508 | struct serv_parm *sp, IOCB_t *irsp) | |
509 | { | |
510 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
511 | struct lpfc_hba *phba = vport->phba; | |
512 | struct lpfc_nodelist *np; | |
513 | struct lpfc_nodelist *next_np; | |
514 | ||
2e0fef85 JS |
515 | spin_lock_irq(shost->host_lock); |
516 | vport->fc_flag |= FC_FABRIC; | |
517 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
518 | |
519 | phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov); | |
520 | if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ | |
521 | phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000; | |
522 | ||
12265f68 | 523 | phba->fc_edtovResol = sp->cmn.edtovResolution; |
dea3101e JB |
524 | phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000; |
525 | ||
526 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
2e0fef85 JS |
527 | spin_lock_irq(shost->host_lock); |
528 | vport->fc_flag |= FC_PUBLIC_LOOP; | |
529 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
530 | } |
531 | ||
2e0fef85 | 532 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
dea3101e | 533 | memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name)); |
92d7f7b0 | 534 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name)); |
dea3101e JB |
535 | ndlp->nlp_class_sup = 0; |
536 | if (sp->cls1.classValid) | |
537 | ndlp->nlp_class_sup |= FC_COS_CLASS1; | |
538 | if (sp->cls2.classValid) | |
539 | ndlp->nlp_class_sup |= FC_COS_CLASS2; | |
540 | if (sp->cls3.classValid) | |
541 | ndlp->nlp_class_sup |= FC_COS_CLASS3; | |
542 | if (sp->cls4.classValid) | |
543 | ndlp->nlp_class_sup |= FC_COS_CLASS4; | |
544 | ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | | |
545 | sp->cmn.bbRcvSizeLsb; | |
546 | memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); | |
547 | ||
92d7f7b0 JS |
548 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
549 | if (sp->cmn.response_multiple_NPort) { | |
e8b62011 JS |
550 | lpfc_printf_vlog(vport, KERN_WARNING, |
551 | LOG_ELS | LOG_VPORT, | |
552 | "1816 FLOGI NPIV supported, " | |
553 | "response data 0x%x\n", | |
554 | sp->cmn.response_multiple_NPort); | |
92d7f7b0 | 555 | phba->link_flag |= LS_NPIV_FAB_SUPPORTED; |
92d7f7b0 JS |
556 | } else { |
557 | /* Because we asked f/w for NPIV it still expects us | |
e8b62011 JS |
558 | to call reg_vnpid atleast for the physcial host */ |
559 | lpfc_printf_vlog(vport, KERN_WARNING, | |
560 | LOG_ELS | LOG_VPORT, | |
561 | "1817 Fabric does not support NPIV " | |
562 | "- configuring single port mode.\n"); | |
92d7f7b0 JS |
563 | phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; |
564 | } | |
565 | } | |
dea3101e | 566 | |
92d7f7b0 JS |
567 | if ((vport->fc_prevDID != vport->fc_myDID) && |
568 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
dea3101e | 569 | |
92d7f7b0 JS |
570 | /* If our NportID changed, we need to ensure all |
571 | * remaining NPORTs get unreg_login'ed. | |
572 | */ | |
573 | list_for_each_entry_safe(np, next_np, | |
574 | &vport->fc_nodes, nlp_listp) { | |
d7c255b2 | 575 | if (!NLP_CHK_NODE_ACT(np)) |
e47c9093 | 576 | continue; |
92d7f7b0 JS |
577 | if ((np->nlp_state != NLP_STE_NPR_NODE) || |
578 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
579 | continue; | |
580 | spin_lock_irq(shost->host_lock); | |
581 | np->nlp_flag &= ~NLP_NPR_ADISC; | |
582 | spin_unlock_irq(shost->host_lock); | |
583 | lpfc_unreg_rpi(vport, np); | |
584 | } | |
78730cfe | 585 | lpfc_cleanup_pending_mbox(vport); |
5af5eee7 JS |
586 | |
587 | if (phba->sli_rev == LPFC_SLI_REV4) | |
588 | lpfc_sli4_unreg_all_rpis(vport); | |
589 | ||
92d7f7b0 JS |
590 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
591 | lpfc_mbx_unreg_vpi(vport); | |
09372820 | 592 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 593 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
09372820 | 594 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 | 595 | } |
ecfd03c6 JS |
596 | /* |
597 | * If VPI is unreged, driver need to do INIT_VPI | |
598 | * before re-registering | |
599 | */ | |
600 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
601 | spin_lock_irq(shost->host_lock); | |
602 | vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; | |
603 | spin_unlock_irq(shost->host_lock); | |
604 | } | |
38b92ef8 JS |
605 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
606 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
607 | /* | |
608 | * Driver needs to re-reg VPI in order for f/w | |
609 | * to update the MAC address. | |
610 | */ | |
611 | lpfc_register_new_vport(phba, vport, ndlp); | |
612 | return 0; | |
92d7f7b0 | 613 | } |
dea3101e | 614 | |
6fb120a7 JS |
615 | if (phba->sli_rev < LPFC_SLI_REV4) { |
616 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); | |
617 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED && | |
618 | vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) | |
619 | lpfc_register_new_vport(phba, vport, ndlp); | |
620 | else | |
621 | lpfc_issue_fabric_reglogin(vport); | |
622 | } else { | |
623 | ndlp->nlp_type |= NLP_FABRIC; | |
624 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); | |
695a814e JS |
625 | if ((!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) && |
626 | (vport->vpi_state & LPFC_VPI_REGISTERED)) { | |
6fb120a7 JS |
627 | lpfc_start_fdiscs(phba); |
628 | lpfc_do_scr_ns_plogi(phba, vport); | |
695a814e | 629 | } else if (vport->fc_flag & FC_VFI_REGISTERED) |
ecfd03c6 | 630 | lpfc_issue_init_vpi(vport); |
695a814e | 631 | else |
6fb120a7 | 632 | lpfc_issue_reg_vfi(vport); |
92d7f7b0 | 633 | } |
dea3101e | 634 | return 0; |
dea3101e | 635 | } |
e59058c4 | 636 | /** |
3621a710 | 637 | * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port |
e59058c4 JS |
638 | * @vport: pointer to a host virtual N_Port data structure. |
639 | * @ndlp: pointer to a node-list data structure. | |
640 | * @sp: pointer to service parameter data structure. | |
641 | * | |
642 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
643 | * function to handle the completion of a Fabric Login (FLOGI) into an N_Port | |
644 | * in a point-to-point topology. First, the @vport's N_Port Name is compared | |
645 | * with the received N_Port Name: if the @vport's N_Port Name is greater than | |
646 | * the received N_Port Name lexicographically, this node shall assign local | |
647 | * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and | |
648 | * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise, | |
649 | * this node shall just wait for the remote node to issue PLOGI and assign | |
650 | * N_Port IDs. | |
651 | * | |
652 | * Return code | |
653 | * 0 - Success | |
654 | * -ENXIO - Fail | |
655 | **/ | |
dea3101e | 656 | static int |
2e0fef85 JS |
657 | lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
658 | struct serv_parm *sp) | |
dea3101e | 659 | { |
2e0fef85 JS |
660 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
661 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
662 | LPFC_MBOXQ_t *mbox; |
663 | int rc; | |
664 | ||
2e0fef85 JS |
665 | spin_lock_irq(shost->host_lock); |
666 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
667 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
668 | |
669 | phba->fc_edtov = FF_DEF_EDTOV; | |
670 | phba->fc_ratov = FF_DEF_RATOV; | |
2e0fef85 | 671 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 672 | sizeof(vport->fc_portname)); |
dea3101e JB |
673 | if (rc >= 0) { |
674 | /* This side will initiate the PLOGI */ | |
2e0fef85 JS |
675 | spin_lock_irq(shost->host_lock); |
676 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
677 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
678 | |
679 | /* | |
680 | * N_Port ID cannot be 0, set our to LocalID the other | |
681 | * side will be RemoteID. | |
682 | */ | |
683 | ||
684 | /* not equal */ | |
685 | if (rc) | |
2e0fef85 | 686 | vport->fc_myDID = PT2PT_LocalID; |
dea3101e JB |
687 | |
688 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
689 | if (!mbox) | |
690 | goto fail; | |
691 | ||
692 | lpfc_config_link(phba, mbox); | |
693 | ||
694 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
ed957684 | 695 | mbox->vport = vport; |
0b727fea | 696 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
dea3101e JB |
697 | if (rc == MBX_NOT_FINISHED) { |
698 | mempool_free(mbox, phba->mbox_mem_pool); | |
699 | goto fail; | |
700 | } | |
e47c9093 JS |
701 | /* Decrement ndlp reference count indicating that ndlp can be |
702 | * safely released when other references to it are done. | |
703 | */ | |
329f9bc7 | 704 | lpfc_nlp_put(ndlp); |
dea3101e | 705 | |
2e0fef85 | 706 | ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID); |
dea3101e JB |
707 | if (!ndlp) { |
708 | /* | |
709 | * Cannot find existing Fabric ndlp, so allocate a | |
710 | * new one | |
711 | */ | |
712 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
713 | if (!ndlp) | |
714 | goto fail; | |
2e0fef85 | 715 | lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID); |
e47c9093 JS |
716 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
717 | ndlp = lpfc_enable_node(vport, ndlp, | |
718 | NLP_STE_UNUSED_NODE); | |
719 | if(!ndlp) | |
720 | goto fail; | |
dea3101e JB |
721 | } |
722 | ||
723 | memcpy(&ndlp->nlp_portname, &sp->portName, | |
2e0fef85 | 724 | sizeof(struct lpfc_name)); |
dea3101e | 725 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, |
2e0fef85 | 726 | sizeof(struct lpfc_name)); |
e47c9093 | 727 | /* Set state will put ndlp onto node list if not already done */ |
2e0fef85 JS |
728 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
729 | spin_lock_irq(shost->host_lock); | |
dea3101e | 730 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 731 | spin_unlock_irq(shost->host_lock); |
e47c9093 JS |
732 | } else |
733 | /* This side will wait for the PLOGI, decrement ndlp reference | |
734 | * count indicating that ndlp can be released when other | |
735 | * references to it are done. | |
736 | */ | |
329f9bc7 | 737 | lpfc_nlp_put(ndlp); |
dea3101e | 738 | |
09372820 JS |
739 | /* If we are pt2pt with another NPort, force NPIV off! */ |
740 | phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; | |
741 | ||
2e0fef85 JS |
742 | spin_lock_irq(shost->host_lock); |
743 | vport->fc_flag |= FC_PT2PT; | |
744 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
745 | |
746 | /* Start discovery - this should just do CLEAR_LA */ | |
2e0fef85 | 747 | lpfc_disc_start(vport); |
dea3101e | 748 | return 0; |
92d7f7b0 | 749 | fail: |
dea3101e JB |
750 | return -ENXIO; |
751 | } | |
752 | ||
e59058c4 | 753 | /** |
3621a710 | 754 | * lpfc_cmpl_els_flogi - Completion callback function for flogi |
e59058c4 JS |
755 | * @phba: pointer to lpfc hba data structure. |
756 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
757 | * @rspiocb: pointer to lpfc response iocb data structure. | |
758 | * | |
759 | * This routine is the top-level completion callback function for issuing | |
760 | * a Fabric Login (FLOGI) command. If the response IOCB reported error, | |
761 | * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If | |
762 | * retry has been made (either immediately or delayed with lpfc_els_retry() | |
763 | * returning 1), the command IOCB will be released and function returned. | |
764 | * If the retry attempt has been given up (possibly reach the maximum | |
765 | * number of retries), one additional decrement of ndlp reference shall be | |
766 | * invoked before going out after releasing the command IOCB. This will | |
767 | * actually release the remote node (Note, lpfc_els_free_iocb() will also | |
768 | * invoke one decrement of ndlp reference count). If no error reported in | |
769 | * the IOCB status, the command Port ID field is used to determine whether | |
770 | * this is a point-to-point topology or a fabric topology: if the Port ID | |
771 | * field is assigned, it is a fabric topology; otherwise, it is a | |
772 | * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or | |
773 | * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the | |
774 | * specific topology completion conditions. | |
775 | **/ | |
dea3101e | 776 | static void |
329f9bc7 JS |
777 | lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
778 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 779 | { |
2e0fef85 JS |
780 | struct lpfc_vport *vport = cmdiocb->vport; |
781 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
782 | IOCB_t *irsp = &rspiocb->iocb; |
783 | struct lpfc_nodelist *ndlp = cmdiocb->context1; | |
784 | struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp; | |
785 | struct serv_parm *sp; | |
0c9ab6f5 | 786 | uint16_t fcf_index; |
dea3101e JB |
787 | int rc; |
788 | ||
789 | /* Check to see if link went down during discovery */ | |
2e0fef85 | 790 | if (lpfc_els_chk_latt(vport)) { |
fa4066b6 JS |
791 | /* One additional decrement on node reference count to |
792 | * trigger the release of the node | |
793 | */ | |
329f9bc7 | 794 | lpfc_nlp_put(ndlp); |
dea3101e JB |
795 | goto out; |
796 | } | |
797 | ||
858c9f6c JS |
798 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
799 | "FLOGI cmpl: status:x%x/x%x state:x%x", | |
800 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
801 | vport->port_state); | |
802 | ||
dea3101e | 803 | if (irsp->ulpStatus) { |
0c9ab6f5 | 804 | /* |
a93ff37a | 805 | * In case of FIP mode, perform roundrobin FCF failover |
0c9ab6f5 JS |
806 | * due to new FCF discovery |
807 | */ | |
808 | if ((phba->hba_flag & HBA_FIP_SUPPORT) && | |
dbb6b3ab JS |
809 | (phba->fcf.fcf_flag & FCF_DISCOVERY) && |
810 | (irsp->ulpStatus != IOSTAT_LOCAL_REJECT) && | |
811 | (irsp->un.ulpWord[4] != IOERR_SLI_ABORTED)) { | |
0c9ab6f5 | 812 | lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, |
a93ff37a JS |
813 | "2611 FLOGI failed on FCF (x%x), " |
814 | "status:x%x/x%x, tmo:x%x, perform " | |
815 | "roundrobin FCF failover\n", | |
38b92ef8 JS |
816 | phba->fcf.current_rec.fcf_indx, |
817 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
818 | irsp->ulpTimeout); | |
0c9ab6f5 | 819 | fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); |
a93ff37a JS |
820 | rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index); |
821 | if (rc) | |
822 | goto out; | |
0c9ab6f5 JS |
823 | } |
824 | ||
38b92ef8 JS |
825 | /* FLOGI failure */ |
826 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
827 | "2858 FLOGI failure Status:x%x/x%x TMO:x%x\n", | |
828 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
829 | irsp->ulpTimeout); | |
830 | ||
dea3101e | 831 | /* Check for retry */ |
2e0fef85 | 832 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e | 833 | goto out; |
2e0fef85 | 834 | |
dea3101e | 835 | /* FLOGI failed, so there is no fabric */ |
2e0fef85 JS |
836 | spin_lock_irq(shost->host_lock); |
837 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
838 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 839 | |
329f9bc7 | 840 | /* If private loop, then allow max outstanding els to be |
dea3101e JB |
841 | * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no |
842 | * alpa map would take too long otherwise. | |
843 | */ | |
844 | if (phba->alpa_map[0] == 0) { | |
3de2a653 | 845 | vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS; |
dea3101e JB |
846 | } |
847 | ||
848 | /* FLOGI failure */ | |
e40a02c1 JS |
849 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
850 | "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n", | |
e8b62011 JS |
851 | irsp->ulpStatus, irsp->un.ulpWord[4], |
852 | irsp->ulpTimeout); | |
dea3101e JB |
853 | goto flogifail; |
854 | } | |
695a814e JS |
855 | spin_lock_irq(shost->host_lock); |
856 | vport->fc_flag &= ~FC_VPORT_CVL_RCVD; | |
4b40c59e | 857 | vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; |
695a814e | 858 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
859 | |
860 | /* | |
861 | * The FLogI succeeded. Sync the data for the CPU before | |
862 | * accessing it. | |
863 | */ | |
864 | prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); | |
865 | ||
866 | sp = prsp->virt + sizeof(uint32_t); | |
867 | ||
868 | /* FLOGI completes successfully */ | |
e8b62011 | 869 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
af901ca1 | 870 | "0101 FLOGI completes successfully " |
e8b62011 JS |
871 | "Data: x%x x%x x%x x%x\n", |
872 | irsp->un.ulpWord[4], sp->cmn.e_d_tov, | |
873 | sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution); | |
dea3101e | 874 | |
2e0fef85 | 875 | if (vport->port_state == LPFC_FLOGI) { |
dea3101e JB |
876 | /* |
877 | * If Common Service Parameters indicate Nport | |
878 | * we are point to point, if Fport we are Fabric. | |
879 | */ | |
880 | if (sp->cmn.fPort) | |
2e0fef85 | 881 | rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp); |
dbb6b3ab | 882 | else if (!(phba->hba_flag & HBA_FCOE_SUPPORT)) |
2e0fef85 | 883 | rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp); |
dbb6b3ab JS |
884 | else { |
885 | lpfc_printf_vlog(vport, KERN_ERR, | |
886 | LOG_FIP | LOG_ELS, | |
887 | "2831 FLOGI response with cleared Fabric " | |
888 | "bit fcf_index 0x%x " | |
889 | "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x " | |
890 | "Fabric Name " | |
891 | "%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
892 | phba->fcf.current_rec.fcf_indx, | |
893 | phba->fcf.current_rec.switch_name[0], | |
894 | phba->fcf.current_rec.switch_name[1], | |
895 | phba->fcf.current_rec.switch_name[2], | |
896 | phba->fcf.current_rec.switch_name[3], | |
897 | phba->fcf.current_rec.switch_name[4], | |
898 | phba->fcf.current_rec.switch_name[5], | |
899 | phba->fcf.current_rec.switch_name[6], | |
900 | phba->fcf.current_rec.switch_name[7], | |
901 | phba->fcf.current_rec.fabric_name[0], | |
902 | phba->fcf.current_rec.fabric_name[1], | |
903 | phba->fcf.current_rec.fabric_name[2], | |
904 | phba->fcf.current_rec.fabric_name[3], | |
905 | phba->fcf.current_rec.fabric_name[4], | |
906 | phba->fcf.current_rec.fabric_name[5], | |
907 | phba->fcf.current_rec.fabric_name[6], | |
908 | phba->fcf.current_rec.fabric_name[7]); | |
909 | lpfc_nlp_put(ndlp); | |
910 | spin_lock_irq(&phba->hbalock); | |
911 | phba->fcf.fcf_flag &= ~FCF_DISCOVERY; | |
a93ff37a | 912 | phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO); |
dbb6b3ab JS |
913 | spin_unlock_irq(&phba->hbalock); |
914 | goto out; | |
915 | } | |
0c9ab6f5 JS |
916 | if (!rc) { |
917 | /* Mark the FCF discovery process done */ | |
999d813f JS |
918 | if (phba->hba_flag & HBA_FIP_SUPPORT) |
919 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP | | |
920 | LOG_ELS, | |
a93ff37a JS |
921 | "2769 FLOGI to FCF (x%x) " |
922 | "completed successfully\n", | |
999d813f | 923 | phba->fcf.current_rec.fcf_indx); |
0c9ab6f5 JS |
924 | spin_lock_irq(&phba->hbalock); |
925 | phba->fcf.fcf_flag &= ~FCF_DISCOVERY; | |
a93ff37a | 926 | phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO); |
0c9ab6f5 | 927 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 928 | goto out; |
0c9ab6f5 | 929 | } |
dea3101e JB |
930 | } |
931 | ||
932 | flogifail: | |
329f9bc7 | 933 | lpfc_nlp_put(ndlp); |
dea3101e | 934 | |
858c9f6c | 935 | if (!lpfc_error_lost_link(irsp)) { |
dea3101e | 936 | /* FLOGI failed, so just use loop map to make discovery list */ |
2e0fef85 | 937 | lpfc_disc_list_loopmap(vport); |
dea3101e JB |
938 | |
939 | /* Start discovery */ | |
2e0fef85 | 940 | lpfc_disc_start(vport); |
87af33fe JS |
941 | } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || |
942 | ((irsp->un.ulpWord[4] != IOERR_SLI_ABORTED) && | |
943 | (irsp->un.ulpWord[4] != IOERR_SLI_DOWN))) && | |
944 | (phba->link_state != LPFC_CLEAR_LA)) { | |
945 | /* If FLOGI failed enable link interrupt. */ | |
946 | lpfc_issue_clear_la(phba, vport); | |
dea3101e | 947 | } |
dea3101e JB |
948 | out: |
949 | lpfc_els_free_iocb(phba, cmdiocb); | |
950 | } | |
951 | ||
e59058c4 | 952 | /** |
3621a710 | 953 | * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport |
e59058c4 JS |
954 | * @vport: pointer to a host virtual N_Port data structure. |
955 | * @ndlp: pointer to a node-list data structure. | |
956 | * @retry: number of retries to the command IOCB. | |
957 | * | |
958 | * This routine issues a Fabric Login (FLOGI) Request ELS command | |
959 | * for a @vport. The initiator service parameters are put into the payload | |
960 | * of the FLOGI Request IOCB and the top-level callback function pointer | |
961 | * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback | |
962 | * function field. The lpfc_issue_fabric_iocb routine is invoked to send | |
963 | * out FLOGI ELS command with one outstanding fabric IOCB at a time. | |
964 | * | |
965 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
966 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
967 | * will be stored into the context1 field of the IOCB for the completion | |
968 | * callback function to the FLOGI ELS command. | |
969 | * | |
970 | * Return code | |
971 | * 0 - successfully issued flogi iocb for @vport | |
972 | * 1 - failed to issue flogi iocb for @vport | |
973 | **/ | |
dea3101e | 974 | static int |
2e0fef85 | 975 | lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
976 | uint8_t retry) |
977 | { | |
2e0fef85 | 978 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
979 | struct serv_parm *sp; |
980 | IOCB_t *icmd; | |
981 | struct lpfc_iocbq *elsiocb; | |
982 | struct lpfc_sli_ring *pring; | |
983 | uint8_t *pcmd; | |
984 | uint16_t cmdsize; | |
985 | uint32_t tmo; | |
986 | int rc; | |
987 | ||
988 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
989 | ||
92d7f7b0 | 990 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
2e0fef85 JS |
991 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
992 | ndlp->nlp_DID, ELS_CMD_FLOGI); | |
92d7f7b0 | 993 | |
488d1469 | 994 | if (!elsiocb) |
c9f8735b | 995 | return 1; |
dea3101e JB |
996 | |
997 | icmd = &elsiocb->iocb; | |
998 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
999 | ||
1000 | /* For FLOGI request, remainder of payload is service parameters */ | |
1001 | *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI; | |
92d7f7b0 JS |
1002 | pcmd += sizeof(uint32_t); |
1003 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e JB |
1004 | sp = (struct serv_parm *) pcmd; |
1005 | ||
1006 | /* Setup CSPs accordingly for Fabric */ | |
1007 | sp->cmn.e_d_tov = 0; | |
1008 | sp->cmn.w2.r_a_tov = 0; | |
1009 | sp->cls1.classValid = 0; | |
1010 | sp->cls2.seqDelivery = 1; | |
1011 | sp->cls3.seqDelivery = 1; | |
1012 | if (sp->cmn.fcphLow < FC_PH3) | |
1013 | sp->cmn.fcphLow = FC_PH3; | |
1014 | if (sp->cmn.fcphHigh < FC_PH3) | |
1015 | sp->cmn.fcphHigh = FC_PH3; | |
1016 | ||
6fb120a7 JS |
1017 | if (phba->sli_rev == LPFC_SLI_REV4) { |
1018 | elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1); | |
1019 | elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1); | |
1020 | /* FLOGI needs to be 3 for WQE FCFI */ | |
1021 | /* Set the fcfi to the fcfi we registered with */ | |
1022 | elsiocb->iocb.ulpContext = phba->fcf.fcfi; | |
1023 | } else if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { | |
92d7f7b0 | 1024 | sp->cmn.request_multiple_Nport = 1; |
92d7f7b0 JS |
1025 | /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */ |
1026 | icmd->ulpCt_h = 1; | |
1027 | icmd->ulpCt_l = 0; | |
1028 | } | |
1029 | ||
858c9f6c JS |
1030 | if (phba->fc_topology != TOPOLOGY_LOOP) { |
1031 | icmd->un.elsreq64.myID = 0; | |
1032 | icmd->un.elsreq64.fl = 1; | |
1033 | } | |
1034 | ||
dea3101e JB |
1035 | tmo = phba->fc_ratov; |
1036 | phba->fc_ratov = LPFC_DISC_FLOGI_TMO; | |
2e0fef85 | 1037 | lpfc_set_disctmo(vport); |
dea3101e JB |
1038 | phba->fc_ratov = tmo; |
1039 | ||
1040 | phba->fc_stat.elsXmitFLOGI++; | |
1041 | elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi; | |
858c9f6c JS |
1042 | |
1043 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
1044 | "Issue FLOGI: opt:x%x", | |
1045 | phba->sli3_options, 0, 0); | |
1046 | ||
92d7f7b0 | 1047 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
dea3101e JB |
1048 | if (rc == IOCB_ERROR) { |
1049 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 1050 | return 1; |
dea3101e | 1051 | } |
c9f8735b | 1052 | return 0; |
dea3101e JB |
1053 | } |
1054 | ||
e59058c4 | 1055 | /** |
3621a710 | 1056 | * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs |
e59058c4 JS |
1057 | * @phba: pointer to lpfc hba data structure. |
1058 | * | |
1059 | * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs | |
1060 | * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq | |
1061 | * list and issues an abort IOCB commond on each outstanding IOCB that | |
1062 | * contains a active Fabric_DID ndlp. Note that this function is to issue | |
1063 | * the abort IOCB command on all the outstanding IOCBs, thus when this | |
1064 | * function returns, it does not guarantee all the IOCBs are actually aborted. | |
1065 | * | |
1066 | * Return code | |
3ad2f3fb | 1067 | * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0) |
e59058c4 | 1068 | **/ |
dea3101e | 1069 | int |
2e0fef85 | 1070 | lpfc_els_abort_flogi(struct lpfc_hba *phba) |
dea3101e JB |
1071 | { |
1072 | struct lpfc_sli_ring *pring; | |
1073 | struct lpfc_iocbq *iocb, *next_iocb; | |
1074 | struct lpfc_nodelist *ndlp; | |
1075 | IOCB_t *icmd; | |
1076 | ||
1077 | /* Abort outstanding I/O on NPort <nlp_DID> */ | |
1078 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
e8b62011 JS |
1079 | "0201 Abort outstanding I/O on NPort x%x\n", |
1080 | Fabric_DID); | |
dea3101e JB |
1081 | |
1082 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
1083 | ||
1084 | /* | |
1085 | * Check the txcmplq for an iocb that matches the nport the driver is | |
1086 | * searching for. | |
1087 | */ | |
2e0fef85 | 1088 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
1089 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { |
1090 | icmd = &iocb->iocb; | |
2e0fef85 JS |
1091 | if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR && |
1092 | icmd->un.elsreq64.bdl.ulpIoTag32) { | |
dea3101e | 1093 | ndlp = (struct lpfc_nodelist *)(iocb->context1); |
58da1ffb JS |
1094 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
1095 | (ndlp->nlp_DID == Fabric_DID)) | |
07951076 | 1096 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); |
dea3101e JB |
1097 | } |
1098 | } | |
2e0fef85 | 1099 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
1100 | |
1101 | return 0; | |
1102 | } | |
1103 | ||
e59058c4 | 1104 | /** |
3621a710 | 1105 | * lpfc_initial_flogi - Issue an initial fabric login for a vport |
e59058c4 JS |
1106 | * @vport: pointer to a host virtual N_Port data structure. |
1107 | * | |
1108 | * This routine issues an initial Fabric Login (FLOGI) for the @vport | |
1109 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
1110 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
1111 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
1112 | * it will just be enabled and made active. The lpfc_issue_els_flogi() routine | |
1113 | * is then invoked with the @vport and the ndlp to perform the FLOGI for the | |
1114 | * @vport. | |
1115 | * | |
1116 | * Return code | |
1117 | * 0 - failed to issue initial flogi for @vport | |
1118 | * 1 - successfully issued initial flogi for @vport | |
1119 | **/ | |
dea3101e | 1120 | int |
2e0fef85 | 1121 | lpfc_initial_flogi(struct lpfc_vport *vport) |
dea3101e | 1122 | { |
2e0fef85 | 1123 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
1124 | struct lpfc_nodelist *ndlp; |
1125 | ||
98c9ea5c JS |
1126 | vport->port_state = LPFC_FLOGI; |
1127 | lpfc_set_disctmo(vport); | |
1128 | ||
c9f8735b | 1129 | /* First look for the Fabric ndlp */ |
2e0fef85 | 1130 | ndlp = lpfc_findnode_did(vport, Fabric_DID); |
c9f8735b | 1131 | if (!ndlp) { |
dea3101e | 1132 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b JW |
1133 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
1134 | if (!ndlp) | |
1135 | return 0; | |
2e0fef85 | 1136 | lpfc_nlp_init(vport, ndlp, Fabric_DID); |
6fb120a7 JS |
1137 | /* Set the node type */ |
1138 | ndlp->nlp_type |= NLP_FABRIC; | |
e47c9093 JS |
1139 | /* Put ndlp onto node list */ |
1140 | lpfc_enqueue_node(vport, ndlp); | |
1141 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
1142 | /* re-setup ndlp without removing from node list */ | |
1143 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
1144 | if (!ndlp) | |
1145 | return 0; | |
dea3101e | 1146 | } |
87af33fe | 1147 | |
5ac6b303 | 1148 | if (lpfc_issue_els_flogi(vport, ndlp, 0)) { |
fa4066b6 JS |
1149 | /* This decrement of reference count to node shall kick off |
1150 | * the release of the node. | |
1151 | */ | |
329f9bc7 | 1152 | lpfc_nlp_put(ndlp); |
5ac6b303 JS |
1153 | return 0; |
1154 | } | |
c9f8735b | 1155 | return 1; |
dea3101e JB |
1156 | } |
1157 | ||
e59058c4 | 1158 | /** |
3621a710 | 1159 | * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport |
e59058c4 JS |
1160 | * @vport: pointer to a host virtual N_Port data structure. |
1161 | * | |
1162 | * This routine issues an initial Fabric Discover (FDISC) for the @vport | |
1163 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
1164 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
1165 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
1166 | * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine | |
1167 | * is then invoked with the @vport and the ndlp to perform the FDISC for the | |
1168 | * @vport. | |
1169 | * | |
1170 | * Return code | |
1171 | * 0 - failed to issue initial fdisc for @vport | |
1172 | * 1 - successfully issued initial fdisc for @vport | |
1173 | **/ | |
92d7f7b0 JS |
1174 | int |
1175 | lpfc_initial_fdisc(struct lpfc_vport *vport) | |
1176 | { | |
1177 | struct lpfc_hba *phba = vport->phba; | |
1178 | struct lpfc_nodelist *ndlp; | |
1179 | ||
1180 | /* First look for the Fabric ndlp */ | |
1181 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
1182 | if (!ndlp) { | |
1183 | /* Cannot find existing Fabric ndlp, so allocate a new one */ | |
1184 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
1185 | if (!ndlp) | |
1186 | return 0; | |
1187 | lpfc_nlp_init(vport, ndlp, Fabric_DID); | |
e47c9093 JS |
1188 | /* Put ndlp onto node list */ |
1189 | lpfc_enqueue_node(vport, ndlp); | |
1190 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
1191 | /* re-setup ndlp without removing from node list */ | |
1192 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
1193 | if (!ndlp) | |
1194 | return 0; | |
92d7f7b0 | 1195 | } |
e47c9093 | 1196 | |
92d7f7b0 | 1197 | if (lpfc_issue_els_fdisc(vport, ndlp, 0)) { |
fa4066b6 JS |
1198 | /* decrement node reference count to trigger the release of |
1199 | * the node. | |
1200 | */ | |
92d7f7b0 | 1201 | lpfc_nlp_put(ndlp); |
fa4066b6 | 1202 | return 0; |
92d7f7b0 JS |
1203 | } |
1204 | return 1; | |
1205 | } | |
87af33fe | 1206 | |
e59058c4 | 1207 | /** |
3621a710 | 1208 | * lpfc_more_plogi - Check and issue remaining plogis for a vport |
e59058c4 JS |
1209 | * @vport: pointer to a host virtual N_Port data structure. |
1210 | * | |
1211 | * This routine checks whether there are more remaining Port Logins | |
1212 | * (PLOGI) to be issued for the @vport. If so, it will invoke the routine | |
1213 | * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes | |
1214 | * to issue ELS PLOGIs up to the configured discover threads with the | |
1215 | * @vport (@vport->cfg_discovery_threads). The function also decrement | |
1216 | * the @vport's num_disc_node by 1 if it is not already 0. | |
1217 | **/ | |
87af33fe | 1218 | void |
2e0fef85 | 1219 | lpfc_more_plogi(struct lpfc_vport *vport) |
dea3101e JB |
1220 | { |
1221 | int sentplogi; | |
1222 | ||
2e0fef85 JS |
1223 | if (vport->num_disc_nodes) |
1224 | vport->num_disc_nodes--; | |
dea3101e JB |
1225 | |
1226 | /* Continue discovery with <num_disc_nodes> PLOGIs to go */ | |
e8b62011 JS |
1227 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
1228 | "0232 Continue discovery with %d PLOGIs to go " | |
1229 | "Data: x%x x%x x%x\n", | |
1230 | vport->num_disc_nodes, vport->fc_plogi_cnt, | |
1231 | vport->fc_flag, vport->port_state); | |
dea3101e | 1232 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 JS |
1233 | if (vport->fc_flag & FC_NLP_MORE) |
1234 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ | |
1235 | sentplogi = lpfc_els_disc_plogi(vport); | |
1236 | ||
dea3101e JB |
1237 | return; |
1238 | } | |
1239 | ||
e59058c4 | 1240 | /** |
3621a710 | 1241 | * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp |
e59058c4 JS |
1242 | * @phba: pointer to lpfc hba data structure. |
1243 | * @prsp: pointer to response IOCB payload. | |
1244 | * @ndlp: pointer to a node-list data structure. | |
1245 | * | |
1246 | * This routine checks and indicates whether the WWPN of an N_Port, retrieved | |
1247 | * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt. | |
1248 | * The following cases are considered N_Port confirmed: | |
1249 | * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches | |
1250 | * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but | |
1251 | * it does not have WWPN assigned either. If the WWPN is confirmed, the | |
1252 | * pointer to the @ndlp will be returned. If the WWPN is not confirmed: | |
1253 | * 1) if there is a node on vport list other than the @ndlp with the same | |
1254 | * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked | |
1255 | * on that node to release the RPI associated with the node; 2) if there is | |
1256 | * no node found on vport list with the same WWPN of the N_Port PLOGI logged | |
1257 | * into, a new node shall be allocated (or activated). In either case, the | |
1258 | * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall | |
1259 | * be released and the new_ndlp shall be put on to the vport node list and | |
1260 | * its pointer returned as the confirmed node. | |
1261 | * | |
1262 | * Note that before the @ndlp got "released", the keepDID from not-matching | |
1263 | * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID | |
1264 | * of the @ndlp. This is because the release of @ndlp is actually to put it | |
1265 | * into an inactive state on the vport node list and the vport node list | |
1266 | * management algorithm does not allow two node with a same DID. | |
1267 | * | |
1268 | * Return code | |
1269 | * pointer to the PLOGI N_Port @ndlp | |
1270 | **/ | |
488d1469 | 1271 | static struct lpfc_nodelist * |
92d7f7b0 | 1272 | lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, |
488d1469 JS |
1273 | struct lpfc_nodelist *ndlp) |
1274 | { | |
2e0fef85 | 1275 | struct lpfc_vport *vport = ndlp->vport; |
488d1469 | 1276 | struct lpfc_nodelist *new_ndlp; |
0ff10d46 JS |
1277 | struct lpfc_rport_data *rdata; |
1278 | struct fc_rport *rport; | |
488d1469 | 1279 | struct serv_parm *sp; |
92d7f7b0 | 1280 | uint8_t name[sizeof(struct lpfc_name)]; |
58da1ffb | 1281 | uint32_t rc, keepDID = 0; |
38b92ef8 JS |
1282 | int put_node; |
1283 | int put_rport; | |
488d1469 | 1284 | |
2fb9bd8b JS |
1285 | /* Fabric nodes can have the same WWPN so we don't bother searching |
1286 | * by WWPN. Just return the ndlp that was given to us. | |
1287 | */ | |
1288 | if (ndlp->nlp_type & NLP_FABRIC) | |
1289 | return ndlp; | |
1290 | ||
92d7f7b0 | 1291 | sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t)); |
685f0bf7 | 1292 | memset(name, 0, sizeof(struct lpfc_name)); |
488d1469 | 1293 | |
685f0bf7 | 1294 | /* Now we find out if the NPort we are logging into, matches the WWPN |
488d1469 JS |
1295 | * we have for that ndlp. If not, we have some work to do. |
1296 | */ | |
2e0fef85 | 1297 | new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName); |
488d1469 | 1298 | |
e47c9093 | 1299 | if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp)) |
488d1469 | 1300 | return ndlp; |
488d1469 JS |
1301 | |
1302 | if (!new_ndlp) { | |
2e0fef85 JS |
1303 | rc = memcmp(&ndlp->nlp_portname, name, |
1304 | sizeof(struct lpfc_name)); | |
92795650 JS |
1305 | if (!rc) |
1306 | return ndlp; | |
488d1469 JS |
1307 | new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC); |
1308 | if (!new_ndlp) | |
1309 | return ndlp; | |
2e0fef85 | 1310 | lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID); |
e47c9093 | 1311 | } else if (!NLP_CHK_NODE_ACT(new_ndlp)) { |
58da1ffb JS |
1312 | rc = memcmp(&ndlp->nlp_portname, name, |
1313 | sizeof(struct lpfc_name)); | |
1314 | if (!rc) | |
1315 | return ndlp; | |
e47c9093 JS |
1316 | new_ndlp = lpfc_enable_node(vport, new_ndlp, |
1317 | NLP_STE_UNUSED_NODE); | |
1318 | if (!new_ndlp) | |
1319 | return ndlp; | |
58da1ffb JS |
1320 | keepDID = new_ndlp->nlp_DID; |
1321 | } else | |
1322 | keepDID = new_ndlp->nlp_DID; | |
488d1469 | 1323 | |
2e0fef85 | 1324 | lpfc_unreg_rpi(vport, new_ndlp); |
488d1469 | 1325 | new_ndlp->nlp_DID = ndlp->nlp_DID; |
92795650 | 1326 | new_ndlp->nlp_prev_state = ndlp->nlp_prev_state; |
0ff10d46 JS |
1327 | |
1328 | if (ndlp->nlp_flag & NLP_NPR_2B_DISC) | |
1329 | new_ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
1330 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; | |
1331 | ||
e47c9093 | 1332 | /* Set state will put new_ndlp on to node list if not already done */ |
2e0fef85 | 1333 | lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state); |
488d1469 | 1334 | |
2e0fef85 | 1335 | /* Move this back to NPR state */ |
87af33fe JS |
1336 | if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) { |
1337 | /* The new_ndlp is replacing ndlp totally, so we need | |
1338 | * to put ndlp on UNUSED list and try to free it. | |
1339 | */ | |
0ff10d46 JS |
1340 | |
1341 | /* Fix up the rport accordingly */ | |
1342 | rport = ndlp->rport; | |
1343 | if (rport) { | |
1344 | rdata = rport->dd_data; | |
1345 | if (rdata->pnode == ndlp) { | |
1346 | lpfc_nlp_put(ndlp); | |
1347 | ndlp->rport = NULL; | |
1348 | rdata->pnode = lpfc_nlp_get(new_ndlp); | |
1349 | new_ndlp->rport = rport; | |
1350 | } | |
1351 | new_ndlp->nlp_type = ndlp->nlp_type; | |
1352 | } | |
58da1ffb JS |
1353 | /* We shall actually free the ndlp with both nlp_DID and |
1354 | * nlp_portname fields equals 0 to avoid any ndlp on the | |
1355 | * nodelist never to be used. | |
1356 | */ | |
1357 | if (ndlp->nlp_DID == 0) { | |
1358 | spin_lock_irq(&phba->ndlp_lock); | |
1359 | NLP_SET_FREE_REQ(ndlp); | |
1360 | spin_unlock_irq(&phba->ndlp_lock); | |
1361 | } | |
0ff10d46 | 1362 | |
58da1ffb JS |
1363 | /* Two ndlps cannot have the same did on the nodelist */ |
1364 | ndlp->nlp_DID = keepDID; | |
2e0fef85 | 1365 | lpfc_drop_node(vport, ndlp); |
87af33fe | 1366 | } |
92795650 | 1367 | else { |
2e0fef85 | 1368 | lpfc_unreg_rpi(vport, ndlp); |
58da1ffb JS |
1369 | /* Two ndlps cannot have the same did */ |
1370 | ndlp->nlp_DID = keepDID; | |
2e0fef85 | 1371 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
38b92ef8 JS |
1372 | /* Since we are swapping the ndlp passed in with the new one |
1373 | * and the did has already been swapped, copy over the | |
1374 | * state and names. | |
1375 | */ | |
1376 | memcpy(&new_ndlp->nlp_portname, &ndlp->nlp_portname, | |
1377 | sizeof(struct lpfc_name)); | |
1378 | memcpy(&new_ndlp->nlp_nodename, &ndlp->nlp_nodename, | |
1379 | sizeof(struct lpfc_name)); | |
1380 | new_ndlp->nlp_state = ndlp->nlp_state; | |
1381 | /* Fix up the rport accordingly */ | |
1382 | rport = ndlp->rport; | |
1383 | if (rport) { | |
1384 | rdata = rport->dd_data; | |
1385 | put_node = rdata->pnode != NULL; | |
1386 | put_rport = ndlp->rport != NULL; | |
1387 | rdata->pnode = NULL; | |
1388 | ndlp->rport = NULL; | |
1389 | if (put_node) | |
1390 | lpfc_nlp_put(ndlp); | |
1391 | if (put_rport) | |
1392 | put_device(&rport->dev); | |
1393 | } | |
92795650 | 1394 | } |
488d1469 JS |
1395 | return new_ndlp; |
1396 | } | |
1397 | ||
e59058c4 | 1398 | /** |
3621a710 | 1399 | * lpfc_end_rscn - Check and handle more rscn for a vport |
e59058c4 JS |
1400 | * @vport: pointer to a host virtual N_Port data structure. |
1401 | * | |
1402 | * This routine checks whether more Registration State Change | |
1403 | * Notifications (RSCNs) came in while the discovery state machine was in | |
1404 | * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be | |
1405 | * invoked to handle the additional RSCNs for the @vport. Otherwise, the | |
1406 | * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of | |
1407 | * handling the RSCNs. | |
1408 | **/ | |
87af33fe JS |
1409 | void |
1410 | lpfc_end_rscn(struct lpfc_vport *vport) | |
1411 | { | |
1412 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
1413 | ||
1414 | if (vport->fc_flag & FC_RSCN_MODE) { | |
1415 | /* | |
1416 | * Check to see if more RSCNs came in while we were | |
1417 | * processing this one. | |
1418 | */ | |
1419 | if (vport->fc_rscn_id_cnt || | |
1420 | (vport->fc_flag & FC_RSCN_DISCOVERY) != 0) | |
1421 | lpfc_els_handle_rscn(vport); | |
1422 | else { | |
1423 | spin_lock_irq(shost->host_lock); | |
1424 | vport->fc_flag &= ~FC_RSCN_MODE; | |
1425 | spin_unlock_irq(shost->host_lock); | |
1426 | } | |
1427 | } | |
1428 | } | |
1429 | ||
e59058c4 | 1430 | /** |
3621a710 | 1431 | * lpfc_cmpl_els_plogi - Completion callback function for plogi |
e59058c4 JS |
1432 | * @phba: pointer to lpfc hba data structure. |
1433 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1434 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1435 | * | |
1436 | * This routine is the completion callback function for issuing the Port | |
1437 | * Login (PLOGI) command. For PLOGI completion, there must be an active | |
1438 | * ndlp on the vport node list that matches the remote node ID from the | |
1439 | * PLOGI reponse IOCB. If such ndlp does not exist, the PLOGI is simply | |
1440 | * ignored and command IOCB released. The PLOGI response IOCB status is | |
1441 | * checked for error conditons. If there is error status reported, PLOGI | |
1442 | * retry shall be attempted by invoking the lpfc_els_retry() routine. | |
1443 | * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on | |
1444 | * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine | |
1445 | * (DSM) is set for this PLOGI completion. Finally, it checks whether | |
1446 | * there are additional N_Port nodes with the vport that need to perform | |
1447 | * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition | |
1448 | * PLOGIs. | |
1449 | **/ | |
dea3101e | 1450 | static void |
2e0fef85 JS |
1451 | lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1452 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1453 | { |
2e0fef85 JS |
1454 | struct lpfc_vport *vport = cmdiocb->vport; |
1455 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 1456 | IOCB_t *irsp; |
dea3101e | 1457 | struct lpfc_nodelist *ndlp; |
92795650 | 1458 | struct lpfc_dmabuf *prsp; |
dea3101e JB |
1459 | int disc, rc, did, type; |
1460 | ||
dea3101e JB |
1461 | /* we pass cmdiocb to state machine which needs rspiocb as well */ |
1462 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1463 | ||
1464 | irsp = &rspiocb->iocb; | |
858c9f6c JS |
1465 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1466 | "PLOGI cmpl: status:x%x/x%x did:x%x", | |
1467 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1468 | irsp->un.elsreq64.remoteID); | |
1469 | ||
2e0fef85 | 1470 | ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID); |
e47c9093 | 1471 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
e8b62011 JS |
1472 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1473 | "0136 PLOGI completes to NPort x%x " | |
1474 | "with no ndlp. Data: x%x x%x x%x\n", | |
1475 | irsp->un.elsreq64.remoteID, | |
1476 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1477 | irsp->ulpIoTag); | |
488d1469 | 1478 | goto out; |
ed957684 | 1479 | } |
dea3101e JB |
1480 | |
1481 | /* Since ndlp can be freed in the disc state machine, note if this node | |
1482 | * is being used during discovery. | |
1483 | */ | |
2e0fef85 | 1484 | spin_lock_irq(shost->host_lock); |
dea3101e | 1485 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
488d1469 | 1486 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 | 1487 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1488 | rc = 0; |
1489 | ||
1490 | /* PLOGI completes to NPort <nlp_DID> */ | |
e8b62011 JS |
1491 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1492 | "0102 PLOGI completes to NPort x%x " | |
1493 | "Data: x%x x%x x%x x%x x%x\n", | |
1494 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1495 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 1496 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
1497 | if (lpfc_els_chk_latt(vport)) { |
1498 | spin_lock_irq(shost->host_lock); | |
dea3101e | 1499 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1500 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1501 | goto out; |
1502 | } | |
1503 | ||
1504 | /* ndlp could be freed in DSM, save these values now */ | |
1505 | type = ndlp->nlp_type; | |
1506 | did = ndlp->nlp_DID; | |
1507 | ||
1508 | if (irsp->ulpStatus) { | |
1509 | /* Check for retry */ | |
1510 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1511 | /* ELS command is being retried */ | |
1512 | if (disc) { | |
2e0fef85 | 1513 | spin_lock_irq(shost->host_lock); |
dea3101e | 1514 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1515 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1516 | } |
1517 | goto out; | |
1518 | } | |
2a9bf3d0 JS |
1519 | /* PLOGI failed Don't print the vport to vport rjts */ |
1520 | if (irsp->ulpStatus != IOSTAT_LS_RJT || | |
1521 | (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) && | |
1522 | ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) || | |
1523 | (phba)->pport->cfg_log_verbose & LOG_ELS) | |
1524 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
e40a02c1 JS |
1525 | "2753 PLOGI failure DID:%06X Status:x%x/x%x\n", |
1526 | ndlp->nlp_DID, irsp->ulpStatus, | |
1527 | irsp->un.ulpWord[4]); | |
dea3101e | 1528 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 1529 | if (lpfc_error_lost_link(irsp)) |
c9f8735b | 1530 | rc = NLP_STE_FREED_NODE; |
e47c9093 | 1531 | else |
2e0fef85 | 1532 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1533 | NLP_EVT_CMPL_PLOGI); |
dea3101e JB |
1534 | } else { |
1535 | /* Good status, call state machine */ | |
92795650 | 1536 | prsp = list_entry(((struct lpfc_dmabuf *) |
92d7f7b0 JS |
1537 | cmdiocb->context2)->list.next, |
1538 | struct lpfc_dmabuf, list); | |
1539 | ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp); | |
2e0fef85 | 1540 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1541 | NLP_EVT_CMPL_PLOGI); |
dea3101e JB |
1542 | } |
1543 | ||
2e0fef85 | 1544 | if (disc && vport->num_disc_nodes) { |
dea3101e | 1545 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 | 1546 | lpfc_more_plogi(vport); |
dea3101e | 1547 | |
2e0fef85 JS |
1548 | if (vport->num_disc_nodes == 0) { |
1549 | spin_lock_irq(shost->host_lock); | |
1550 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
1551 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 1552 | |
2e0fef85 | 1553 | lpfc_can_disctmo(vport); |
87af33fe | 1554 | lpfc_end_rscn(vport); |
dea3101e JB |
1555 | } |
1556 | } | |
1557 | ||
1558 | out: | |
1559 | lpfc_els_free_iocb(phba, cmdiocb); | |
1560 | return; | |
1561 | } | |
1562 | ||
e59058c4 | 1563 | /** |
3621a710 | 1564 | * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport |
e59058c4 JS |
1565 | * @vport: pointer to a host virtual N_Port data structure. |
1566 | * @did: destination port identifier. | |
1567 | * @retry: number of retries to the command IOCB. | |
1568 | * | |
1569 | * This routine issues a Port Login (PLOGI) command to a remote N_Port | |
1570 | * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port, | |
1571 | * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list. | |
1572 | * This routine constructs the proper feilds of the PLOGI IOCB and invokes | |
1573 | * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command. | |
1574 | * | |
1575 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1576 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1577 | * will be stored into the context1 field of the IOCB for the completion | |
1578 | * callback function to the PLOGI ELS command. | |
1579 | * | |
1580 | * Return code | |
1581 | * 0 - Successfully issued a plogi for @vport | |
1582 | * 1 - failed to issue a plogi for @vport | |
1583 | **/ | |
dea3101e | 1584 | int |
2e0fef85 | 1585 | lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) |
dea3101e | 1586 | { |
2e0fef85 | 1587 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
1588 | struct serv_parm *sp; |
1589 | IOCB_t *icmd; | |
98c9ea5c | 1590 | struct lpfc_nodelist *ndlp; |
dea3101e | 1591 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
1592 | struct lpfc_sli *psli; |
1593 | uint8_t *pcmd; | |
1594 | uint16_t cmdsize; | |
92d7f7b0 | 1595 | int ret; |
dea3101e JB |
1596 | |
1597 | psli = &phba->sli; | |
dea3101e | 1598 | |
98c9ea5c | 1599 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
1600 | if (ndlp && !NLP_CHK_NODE_ACT(ndlp)) |
1601 | ndlp = NULL; | |
98c9ea5c | 1602 | |
e47c9093 | 1603 | /* If ndlp is not NULL, we will bump the reference count on it */ |
92d7f7b0 | 1604 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
98c9ea5c | 1605 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, |
2e0fef85 | 1606 | ELS_CMD_PLOGI); |
c9f8735b JW |
1607 | if (!elsiocb) |
1608 | return 1; | |
dea3101e JB |
1609 | |
1610 | icmd = &elsiocb->iocb; | |
1611 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1612 | ||
1613 | /* For PLOGI request, remainder of payload is service parameters */ | |
1614 | *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI; | |
92d7f7b0 JS |
1615 | pcmd += sizeof(uint32_t); |
1616 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e JB |
1617 | sp = (struct serv_parm *) pcmd; |
1618 | ||
5ac6b303 JS |
1619 | /* |
1620 | * If we are a N-port connected to a Fabric, fix-up paramm's so logins | |
1621 | * to device on remote loops work. | |
1622 | */ | |
1623 | if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP)) | |
1624 | sp->cmn.altBbCredit = 1; | |
1625 | ||
dea3101e JB |
1626 | if (sp->cmn.fcphLow < FC_PH_4_3) |
1627 | sp->cmn.fcphLow = FC_PH_4_3; | |
1628 | ||
1629 | if (sp->cmn.fcphHigh < FC_PH3) | |
1630 | sp->cmn.fcphHigh = FC_PH3; | |
1631 | ||
858c9f6c JS |
1632 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1633 | "Issue PLOGI: did:x%x", | |
1634 | did, 0, 0); | |
1635 | ||
dea3101e JB |
1636 | phba->fc_stat.elsXmitPLOGI++; |
1637 | elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi; | |
3772a991 | 1638 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
1639 | |
1640 | if (ret == IOCB_ERROR) { | |
dea3101e | 1641 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1642 | return 1; |
dea3101e | 1643 | } |
c9f8735b | 1644 | return 0; |
dea3101e JB |
1645 | } |
1646 | ||
e59058c4 | 1647 | /** |
3621a710 | 1648 | * lpfc_cmpl_els_prli - Completion callback function for prli |
e59058c4 JS |
1649 | * @phba: pointer to lpfc hba data structure. |
1650 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1651 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1652 | * | |
1653 | * This routine is the completion callback function for a Process Login | |
1654 | * (PRLI) ELS command. The PRLI response IOCB status is checked for error | |
1655 | * status. If there is error status reported, PRLI retry shall be attempted | |
1656 | * by invoking the lpfc_els_retry() routine. Otherwise, the state | |
1657 | * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this | |
1658 | * ndlp to mark the PRLI completion. | |
1659 | **/ | |
dea3101e | 1660 | static void |
2e0fef85 JS |
1661 | lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1662 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1663 | { |
2e0fef85 JS |
1664 | struct lpfc_vport *vport = cmdiocb->vport; |
1665 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
1666 | IOCB_t *irsp; |
1667 | struct lpfc_sli *psli; | |
1668 | struct lpfc_nodelist *ndlp; | |
1669 | ||
1670 | psli = &phba->sli; | |
1671 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1672 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1673 | ||
1674 | irsp = &(rspiocb->iocb); | |
1675 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2e0fef85 | 1676 | spin_lock_irq(shost->host_lock); |
dea3101e | 1677 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 1678 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1679 | |
858c9f6c JS |
1680 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1681 | "PRLI cmpl: status:x%x/x%x did:x%x", | |
1682 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1683 | ndlp->nlp_DID); | |
dea3101e | 1684 | /* PRLI completes to NPort <nlp_DID> */ |
e8b62011 JS |
1685 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1686 | "0103 PRLI completes to NPort x%x " | |
1687 | "Data: x%x x%x x%x x%x\n", | |
1688 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1689 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 1690 | |
2e0fef85 | 1691 | vport->fc_prli_sent--; |
dea3101e | 1692 | /* Check to see if link went down during discovery */ |
2e0fef85 | 1693 | if (lpfc_els_chk_latt(vport)) |
dea3101e JB |
1694 | goto out; |
1695 | ||
1696 | if (irsp->ulpStatus) { | |
1697 | /* Check for retry */ | |
1698 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1699 | /* ELS command is being retried */ | |
1700 | goto out; | |
1701 | } | |
1702 | /* PRLI failed */ | |
e40a02c1 JS |
1703 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1704 | "2754 PRLI failure DID:%06X Status:x%x/x%x\n", | |
1705 | ndlp->nlp_DID, irsp->ulpStatus, | |
1706 | irsp->un.ulpWord[4]); | |
dea3101e | 1707 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 1708 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 1709 | goto out; |
e47c9093 | 1710 | else |
2e0fef85 | 1711 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1712 | NLP_EVT_CMPL_PRLI); |
e47c9093 | 1713 | } else |
dea3101e | 1714 | /* Good status, call state machine */ |
2e0fef85 | 1715 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1716 | NLP_EVT_CMPL_PRLI); |
dea3101e JB |
1717 | out: |
1718 | lpfc_els_free_iocb(phba, cmdiocb); | |
1719 | return; | |
1720 | } | |
1721 | ||
e59058c4 | 1722 | /** |
3621a710 | 1723 | * lpfc_issue_els_prli - Issue a prli iocb command for a vport |
e59058c4 JS |
1724 | * @vport: pointer to a host virtual N_Port data structure. |
1725 | * @ndlp: pointer to a node-list data structure. | |
1726 | * @retry: number of retries to the command IOCB. | |
1727 | * | |
1728 | * This routine issues a Process Login (PRLI) ELS command for the | |
1729 | * @vport. The PRLI service parameters are set up in the payload of the | |
1730 | * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine | |
1731 | * is put to the IOCB completion callback func field before invoking the | |
1732 | * routine lpfc_sli_issue_iocb() to send out PRLI command. | |
1733 | * | |
1734 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1735 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1736 | * will be stored into the context1 field of the IOCB for the completion | |
1737 | * callback function to the PRLI ELS command. | |
1738 | * | |
1739 | * Return code | |
1740 | * 0 - successfully issued prli iocb command for @vport | |
1741 | * 1 - failed to issue prli iocb command for @vport | |
1742 | **/ | |
dea3101e | 1743 | int |
2e0fef85 | 1744 | lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
1745 | uint8_t retry) |
1746 | { | |
2e0fef85 JS |
1747 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
1748 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
1749 | PRLI *npr; |
1750 | IOCB_t *icmd; | |
1751 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
1752 | uint8_t *pcmd; |
1753 | uint16_t cmdsize; | |
1754 | ||
92d7f7b0 | 1755 | cmdsize = (sizeof(uint32_t) + sizeof(PRLI)); |
2e0fef85 JS |
1756 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1757 | ndlp->nlp_DID, ELS_CMD_PRLI); | |
488d1469 | 1758 | if (!elsiocb) |
c9f8735b | 1759 | return 1; |
dea3101e JB |
1760 | |
1761 | icmd = &elsiocb->iocb; | |
1762 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1763 | ||
1764 | /* For PRLI request, remainder of payload is service parameters */ | |
92d7f7b0 | 1765 | memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t))); |
dea3101e | 1766 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLI; |
92d7f7b0 | 1767 | pcmd += sizeof(uint32_t); |
dea3101e JB |
1768 | |
1769 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
1770 | npr = (PRLI *) pcmd; | |
1771 | /* | |
1772 | * If our firmware version is 3.20 or later, | |
1773 | * set the following bits for FC-TAPE support. | |
1774 | */ | |
1775 | if (phba->vpd.rev.feaLevelHigh >= 0x02) { | |
1776 | npr->ConfmComplAllowed = 1; | |
1777 | npr->Retry = 1; | |
1778 | npr->TaskRetryIdReq = 1; | |
1779 | } | |
1780 | npr->estabImagePair = 1; | |
1781 | npr->readXferRdyDis = 1; | |
1782 | ||
1783 | /* For FCP support */ | |
1784 | npr->prliType = PRLI_FCP_TYPE; | |
1785 | npr->initiatorFunc = 1; | |
1786 | ||
858c9f6c JS |
1787 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1788 | "Issue PRLI: did:x%x", | |
1789 | ndlp->nlp_DID, 0, 0); | |
1790 | ||
dea3101e JB |
1791 | phba->fc_stat.elsXmitPRLI++; |
1792 | elsiocb->iocb_cmpl = lpfc_cmpl_els_prli; | |
2e0fef85 | 1793 | spin_lock_irq(shost->host_lock); |
dea3101e | 1794 | ndlp->nlp_flag |= NLP_PRLI_SND; |
2e0fef85 | 1795 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
1796 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
1797 | IOCB_ERROR) { | |
2e0fef85 | 1798 | spin_lock_irq(shost->host_lock); |
dea3101e | 1799 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 1800 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1801 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1802 | return 1; |
dea3101e | 1803 | } |
2e0fef85 | 1804 | vport->fc_prli_sent++; |
c9f8735b | 1805 | return 0; |
dea3101e JB |
1806 | } |
1807 | ||
90160e01 | 1808 | /** |
3621a710 | 1809 | * lpfc_rscn_disc - Perform rscn discovery for a vport |
90160e01 JS |
1810 | * @vport: pointer to a host virtual N_Port data structure. |
1811 | * | |
1812 | * This routine performs Registration State Change Notification (RSCN) | |
1813 | * discovery for a @vport. If the @vport's node port recovery count is not | |
1814 | * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all | |
1815 | * the nodes that need recovery. If none of the PLOGI were needed through | |
1816 | * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be | |
1817 | * invoked to check and handle possible more RSCN came in during the period | |
1818 | * of processing the current ones. | |
1819 | **/ | |
1820 | static void | |
1821 | lpfc_rscn_disc(struct lpfc_vport *vport) | |
1822 | { | |
1823 | lpfc_can_disctmo(vport); | |
1824 | ||
1825 | /* RSCN discovery */ | |
1826 | /* go thru NPR nodes and issue ELS PLOGIs */ | |
1827 | if (vport->fc_npr_cnt) | |
1828 | if (lpfc_els_disc_plogi(vport)) | |
1829 | return; | |
1830 | ||
1831 | lpfc_end_rscn(vport); | |
1832 | } | |
1833 | ||
1834 | /** | |
3621a710 | 1835 | * lpfc_adisc_done - Complete the adisc phase of discovery |
90160e01 JS |
1836 | * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs. |
1837 | * | |
1838 | * This function is called when the final ADISC is completed during discovery. | |
1839 | * This function handles clearing link attention or issuing reg_vpi depending | |
1840 | * on whether npiv is enabled. This function also kicks off the PLOGI phase of | |
1841 | * discovery. | |
1842 | * This function is called with no locks held. | |
1843 | **/ | |
1844 | static void | |
1845 | lpfc_adisc_done(struct lpfc_vport *vport) | |
1846 | { | |
1847 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
1848 | struct lpfc_hba *phba = vport->phba; | |
1849 | ||
1850 | /* | |
1851 | * For NPIV, cmpl_reg_vpi will set port_state to READY, | |
1852 | * and continue discovery. | |
1853 | */ | |
1854 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
6fb120a7 JS |
1855 | !(vport->fc_flag & FC_RSCN_MODE) && |
1856 | (phba->sli_rev < LPFC_SLI_REV4)) { | |
90160e01 JS |
1857 | lpfc_issue_reg_vpi(phba, vport); |
1858 | return; | |
1859 | } | |
1860 | /* | |
1861 | * For SLI2, we need to set port_state to READY | |
1862 | * and continue discovery. | |
1863 | */ | |
1864 | if (vport->port_state < LPFC_VPORT_READY) { | |
1865 | /* If we get here, there is nothing to ADISC */ | |
1866 | if (vport->port_type == LPFC_PHYSICAL_PORT) | |
1867 | lpfc_issue_clear_la(phba, vport); | |
1868 | if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { | |
1869 | vport->num_disc_nodes = 0; | |
1870 | /* go thru NPR list, issue ELS PLOGIs */ | |
1871 | if (vport->fc_npr_cnt) | |
1872 | lpfc_els_disc_plogi(vport); | |
1873 | if (!vport->num_disc_nodes) { | |
1874 | spin_lock_irq(shost->host_lock); | |
1875 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
1876 | spin_unlock_irq(shost->host_lock); | |
1877 | lpfc_can_disctmo(vport); | |
1878 | lpfc_end_rscn(vport); | |
1879 | } | |
1880 | } | |
1881 | vport->port_state = LPFC_VPORT_READY; | |
1882 | } else | |
1883 | lpfc_rscn_disc(vport); | |
1884 | } | |
1885 | ||
e59058c4 | 1886 | /** |
3621a710 | 1887 | * lpfc_more_adisc - Issue more adisc as needed |
e59058c4 JS |
1888 | * @vport: pointer to a host virtual N_Port data structure. |
1889 | * | |
1890 | * This routine determines whether there are more ndlps on a @vport | |
1891 | * node list need to have Address Discover (ADISC) issued. If so, it will | |
1892 | * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's | |
1893 | * remaining nodes which need to have ADISC sent. | |
1894 | **/ | |
0ff10d46 | 1895 | void |
2e0fef85 | 1896 | lpfc_more_adisc(struct lpfc_vport *vport) |
dea3101e JB |
1897 | { |
1898 | int sentadisc; | |
1899 | ||
2e0fef85 JS |
1900 | if (vport->num_disc_nodes) |
1901 | vport->num_disc_nodes--; | |
dea3101e | 1902 | /* Continue discovery with <num_disc_nodes> ADISCs to go */ |
e8b62011 JS |
1903 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
1904 | "0210 Continue discovery with %d ADISCs to go " | |
1905 | "Data: x%x x%x x%x\n", | |
1906 | vport->num_disc_nodes, vport->fc_adisc_cnt, | |
1907 | vport->fc_flag, vport->port_state); | |
dea3101e | 1908 | /* Check to see if there are more ADISCs to be sent */ |
2e0fef85 JS |
1909 | if (vport->fc_flag & FC_NLP_MORE) { |
1910 | lpfc_set_disctmo(vport); | |
1911 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ | |
1912 | sentadisc = lpfc_els_disc_adisc(vport); | |
dea3101e | 1913 | } |
90160e01 JS |
1914 | if (!vport->num_disc_nodes) |
1915 | lpfc_adisc_done(vport); | |
dea3101e JB |
1916 | return; |
1917 | } | |
1918 | ||
e59058c4 | 1919 | /** |
3621a710 | 1920 | * lpfc_cmpl_els_adisc - Completion callback function for adisc |
e59058c4 JS |
1921 | * @phba: pointer to lpfc hba data structure. |
1922 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1923 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1924 | * | |
1925 | * This routine is the completion function for issuing the Address Discover | |
1926 | * (ADISC) command. It first checks to see whether link went down during | |
1927 | * the discovery process. If so, the node will be marked as node port | |
1928 | * recovery for issuing discover IOCB by the link attention handler and | |
1929 | * exit. Otherwise, the response status is checked. If error was reported | |
1930 | * in the response status, the ADISC command shall be retried by invoking | |
1931 | * the lpfc_els_retry() routine. Otherwise, if no error was reported in | |
1932 | * the response status, the state machine is invoked to set transition | |
1933 | * with respect to NLP_EVT_CMPL_ADISC event. | |
1934 | **/ | |
dea3101e | 1935 | static void |
2e0fef85 JS |
1936 | lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1937 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1938 | { |
2e0fef85 JS |
1939 | struct lpfc_vport *vport = cmdiocb->vport; |
1940 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 1941 | IOCB_t *irsp; |
dea3101e | 1942 | struct lpfc_nodelist *ndlp; |
2e0fef85 | 1943 | int disc; |
dea3101e JB |
1944 | |
1945 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1946 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1947 | ||
1948 | irsp = &(rspiocb->iocb); | |
1949 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
dea3101e | 1950 | |
858c9f6c JS |
1951 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1952 | "ADISC cmpl: status:x%x/x%x did:x%x", | |
1953 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1954 | ndlp->nlp_DID); | |
1955 | ||
dea3101e JB |
1956 | /* Since ndlp can be freed in the disc state machine, note if this node |
1957 | * is being used during discovery. | |
1958 | */ | |
2e0fef85 | 1959 | spin_lock_irq(shost->host_lock); |
dea3101e | 1960 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
c9f8735b | 1961 | ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC); |
2e0fef85 | 1962 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1963 | /* ADISC completes to NPort <nlp_DID> */ |
e8b62011 JS |
1964 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1965 | "0104 ADISC completes to NPort x%x " | |
1966 | "Data: x%x x%x x%x x%x x%x\n", | |
1967 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1968 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 1969 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
1970 | if (lpfc_els_chk_latt(vport)) { |
1971 | spin_lock_irq(shost->host_lock); | |
dea3101e | 1972 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1973 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1974 | goto out; |
1975 | } | |
1976 | ||
1977 | if (irsp->ulpStatus) { | |
1978 | /* Check for retry */ | |
1979 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1980 | /* ELS command is being retried */ | |
1981 | if (disc) { | |
2e0fef85 | 1982 | spin_lock_irq(shost->host_lock); |
dea3101e | 1983 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 JS |
1984 | spin_unlock_irq(shost->host_lock); |
1985 | lpfc_set_disctmo(vport); | |
dea3101e JB |
1986 | } |
1987 | goto out; | |
1988 | } | |
1989 | /* ADISC failed */ | |
e40a02c1 JS |
1990 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1991 | "2755 ADISC failure DID:%06X Status:x%x/x%x\n", | |
1992 | ndlp->nlp_DID, irsp->ulpStatus, | |
1993 | irsp->un.ulpWord[4]); | |
dea3101e | 1994 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 1995 | if (!lpfc_error_lost_link(irsp)) |
2e0fef85 | 1996 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
858c9f6c | 1997 | NLP_EVT_CMPL_ADISC); |
e47c9093 | 1998 | } else |
dea3101e | 1999 | /* Good status, call state machine */ |
2e0fef85 | 2000 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
dea3101e | 2001 | NLP_EVT_CMPL_ADISC); |
dea3101e | 2002 | |
90160e01 JS |
2003 | /* Check to see if there are more ADISCs to be sent */ |
2004 | if (disc && vport->num_disc_nodes) | |
2e0fef85 | 2005 | lpfc_more_adisc(vport); |
dea3101e JB |
2006 | out: |
2007 | lpfc_els_free_iocb(phba, cmdiocb); | |
2008 | return; | |
2009 | } | |
2010 | ||
e59058c4 | 2011 | /** |
3621a710 | 2012 | * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport |
e59058c4 JS |
2013 | * @vport: pointer to a virtual N_Port data structure. |
2014 | * @ndlp: pointer to a node-list data structure. | |
2015 | * @retry: number of retries to the command IOCB. | |
2016 | * | |
2017 | * This routine issues an Address Discover (ADISC) for an @ndlp on a | |
2018 | * @vport. It prepares the payload of the ADISC ELS command, updates the | |
2019 | * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine | |
2020 | * to issue the ADISC ELS command. | |
2021 | * | |
2022 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2023 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2024 | * will be stored into the context1 field of the IOCB for the completion | |
2025 | * callback function to the ADISC ELS command. | |
2026 | * | |
2027 | * Return code | |
2028 | * 0 - successfully issued adisc | |
2029 | * 1 - failed to issue adisc | |
2030 | **/ | |
dea3101e | 2031 | int |
2e0fef85 | 2032 | lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
2033 | uint8_t retry) |
2034 | { | |
2e0fef85 JS |
2035 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2036 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
2037 | ADISC *ap; |
2038 | IOCB_t *icmd; | |
2039 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2040 | uint8_t *pcmd; |
2041 | uint16_t cmdsize; | |
2042 | ||
92d7f7b0 | 2043 | cmdsize = (sizeof(uint32_t) + sizeof(ADISC)); |
2e0fef85 JS |
2044 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2045 | ndlp->nlp_DID, ELS_CMD_ADISC); | |
488d1469 | 2046 | if (!elsiocb) |
c9f8735b | 2047 | return 1; |
dea3101e JB |
2048 | |
2049 | icmd = &elsiocb->iocb; | |
2050 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2051 | ||
2052 | /* For ADISC request, remainder of payload is service parameters */ | |
2053 | *((uint32_t *) (pcmd)) = ELS_CMD_ADISC; | |
92d7f7b0 | 2054 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2055 | |
2056 | /* Fill in ADISC payload */ | |
2057 | ap = (ADISC *) pcmd; | |
2058 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
2059 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2060 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2061 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 2062 | |
858c9f6c JS |
2063 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2064 | "Issue ADISC: did:x%x", | |
2065 | ndlp->nlp_DID, 0, 0); | |
2066 | ||
dea3101e JB |
2067 | phba->fc_stat.elsXmitADISC++; |
2068 | elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc; | |
2e0fef85 | 2069 | spin_lock_irq(shost->host_lock); |
dea3101e | 2070 | ndlp->nlp_flag |= NLP_ADISC_SND; |
2e0fef85 | 2071 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
2072 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2073 | IOCB_ERROR) { | |
2e0fef85 | 2074 | spin_lock_irq(shost->host_lock); |
dea3101e | 2075 | ndlp->nlp_flag &= ~NLP_ADISC_SND; |
2e0fef85 | 2076 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2077 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2078 | return 1; |
dea3101e | 2079 | } |
c9f8735b | 2080 | return 0; |
dea3101e JB |
2081 | } |
2082 | ||
e59058c4 | 2083 | /** |
3621a710 | 2084 | * lpfc_cmpl_els_logo - Completion callback function for logo |
e59058c4 JS |
2085 | * @phba: pointer to lpfc hba data structure. |
2086 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2087 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2088 | * | |
2089 | * This routine is the completion function for issuing the ELS Logout (LOGO) | |
2090 | * command. If no error status was reported from the LOGO response, the | |
2091 | * state machine of the associated ndlp shall be invoked for transition with | |
2092 | * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported, | |
2093 | * the lpfc_els_retry() routine will be invoked to retry the LOGO command. | |
2094 | **/ | |
dea3101e | 2095 | static void |
2e0fef85 JS |
2096 | lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2097 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2098 | { |
2e0fef85 JS |
2099 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
2100 | struct lpfc_vport *vport = ndlp->vport; | |
2101 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
2102 | IOCB_t *irsp; |
2103 | struct lpfc_sli *psli; | |
dea3101e JB |
2104 | |
2105 | psli = &phba->sli; | |
2106 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
2107 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
2108 | ||
2109 | irsp = &(rspiocb->iocb); | |
2e0fef85 | 2110 | spin_lock_irq(shost->host_lock); |
dea3101e | 2111 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 2112 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2113 | |
858c9f6c JS |
2114 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2115 | "LOGO cmpl: status:x%x/x%x did:x%x", | |
2116 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2117 | ndlp->nlp_DID); | |
dea3101e | 2118 | /* LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
2119 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2120 | "0105 LOGO completes to NPort x%x " | |
2121 | "Data: x%x x%x x%x x%x\n", | |
2122 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
2123 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 2124 | /* Check to see if link went down during discovery */ |
2e0fef85 | 2125 | if (lpfc_els_chk_latt(vport)) |
dea3101e JB |
2126 | goto out; |
2127 | ||
92d7f7b0 JS |
2128 | if (ndlp->nlp_flag & NLP_TARGET_REMOVE) { |
2129 | /* NLP_EVT_DEVICE_RM should unregister the RPI | |
2130 | * which should abort all outstanding IOs. | |
2131 | */ | |
2132 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, | |
2133 | NLP_EVT_DEVICE_RM); | |
2134 | goto out; | |
2135 | } | |
2136 | ||
dea3101e JB |
2137 | if (irsp->ulpStatus) { |
2138 | /* Check for retry */ | |
2e0fef85 | 2139 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e JB |
2140 | /* ELS command is being retried */ |
2141 | goto out; | |
dea3101e | 2142 | /* LOGO failed */ |
e40a02c1 JS |
2143 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2144 | "2756 LOGO failure DID:%06X Status:x%x/x%x\n", | |
2145 | ndlp->nlp_DID, irsp->ulpStatus, | |
2146 | irsp->un.ulpWord[4]); | |
dea3101e | 2147 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
858c9f6c | 2148 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 2149 | goto out; |
858c9f6c | 2150 | else |
2e0fef85 | 2151 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 2152 | NLP_EVT_CMPL_LOGO); |
e47c9093 | 2153 | } else |
5024ab17 JW |
2154 | /* Good status, call state machine. |
2155 | * This will unregister the rpi if needed. | |
2156 | */ | |
2e0fef85 | 2157 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 2158 | NLP_EVT_CMPL_LOGO); |
dea3101e JB |
2159 | out: |
2160 | lpfc_els_free_iocb(phba, cmdiocb); | |
2161 | return; | |
2162 | } | |
2163 | ||
e59058c4 | 2164 | /** |
3621a710 | 2165 | * lpfc_issue_els_logo - Issue a logo to an node on a vport |
e59058c4 JS |
2166 | * @vport: pointer to a virtual N_Port data structure. |
2167 | * @ndlp: pointer to a node-list data structure. | |
2168 | * @retry: number of retries to the command IOCB. | |
2169 | * | |
2170 | * This routine constructs and issues an ELS Logout (LOGO) iocb command | |
2171 | * to a remote node, referred by an @ndlp on a @vport. It constructs the | |
2172 | * payload of the IOCB, properly sets up the @ndlp state, and invokes the | |
2173 | * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command. | |
2174 | * | |
2175 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2176 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2177 | * will be stored into the context1 field of the IOCB for the completion | |
2178 | * callback function to the LOGO ELS command. | |
2179 | * | |
2180 | * Return code | |
2181 | * 0 - successfully issued logo | |
2182 | * 1 - failed to issue logo | |
2183 | **/ | |
dea3101e | 2184 | int |
2e0fef85 | 2185 | lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
2186 | uint8_t retry) |
2187 | { | |
2e0fef85 JS |
2188 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2189 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
2190 | IOCB_t *icmd; |
2191 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2192 | uint8_t *pcmd; |
2193 | uint16_t cmdsize; | |
92d7f7b0 | 2194 | int rc; |
dea3101e | 2195 | |
98c9ea5c JS |
2196 | spin_lock_irq(shost->host_lock); |
2197 | if (ndlp->nlp_flag & NLP_LOGO_SND) { | |
2198 | spin_unlock_irq(shost->host_lock); | |
2199 | return 0; | |
2200 | } | |
2201 | spin_unlock_irq(shost->host_lock); | |
2202 | ||
92d7f7b0 | 2203 | cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name); |
2e0fef85 JS |
2204 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2205 | ndlp->nlp_DID, ELS_CMD_LOGO); | |
488d1469 | 2206 | if (!elsiocb) |
c9f8735b | 2207 | return 1; |
dea3101e JB |
2208 | |
2209 | icmd = &elsiocb->iocb; | |
2210 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2211 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
92d7f7b0 | 2212 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2213 | |
2214 | /* Fill in LOGO payload */ | |
2e0fef85 | 2215 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); |
92d7f7b0 JS |
2216 | pcmd += sizeof(uint32_t); |
2217 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
dea3101e | 2218 | |
858c9f6c JS |
2219 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2220 | "Issue LOGO: did:x%x", | |
2221 | ndlp->nlp_DID, 0, 0); | |
2222 | ||
dea3101e JB |
2223 | phba->fc_stat.elsXmitLOGO++; |
2224 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo; | |
2e0fef85 | 2225 | spin_lock_irq(shost->host_lock); |
dea3101e | 2226 | ndlp->nlp_flag |= NLP_LOGO_SND; |
2e0fef85 | 2227 | spin_unlock_irq(shost->host_lock); |
3772a991 | 2228 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
2229 | |
2230 | if (rc == IOCB_ERROR) { | |
2e0fef85 | 2231 | spin_lock_irq(shost->host_lock); |
dea3101e | 2232 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 2233 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2234 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2235 | return 1; |
dea3101e | 2236 | } |
c9f8735b | 2237 | return 0; |
dea3101e JB |
2238 | } |
2239 | ||
e59058c4 | 2240 | /** |
3621a710 | 2241 | * lpfc_cmpl_els_cmd - Completion callback function for generic els command |
e59058c4 JS |
2242 | * @phba: pointer to lpfc hba data structure. |
2243 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2244 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2245 | * | |
2246 | * This routine is a generic completion callback function for ELS commands. | |
2247 | * Specifically, it is the callback function which does not need to perform | |
2248 | * any command specific operations. It is currently used by the ELS command | |
2249 | * issuing routines for the ELS State Change Request (SCR), | |
2250 | * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution | |
2251 | * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than | |
2252 | * certain debug loggings, this callback function simply invokes the | |
2253 | * lpfc_els_chk_latt() routine to check whether link went down during the | |
2254 | * discovery process. | |
2255 | **/ | |
dea3101e | 2256 | static void |
2e0fef85 JS |
2257 | lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2258 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2259 | { |
2e0fef85 | 2260 | struct lpfc_vport *vport = cmdiocb->vport; |
dea3101e JB |
2261 | IOCB_t *irsp; |
2262 | ||
2263 | irsp = &rspiocb->iocb; | |
2264 | ||
858c9f6c JS |
2265 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2266 | "ELS cmd cmpl: status:x%x/x%x did:x%x", | |
2267 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2268 | irsp->un.elsreq64.remoteID); | |
dea3101e | 2269 | /* ELS cmd tag <ulpIoTag> completes */ |
e8b62011 JS |
2270 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2271 | "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n", | |
2272 | irsp->ulpIoTag, irsp->ulpStatus, | |
2273 | irsp->un.ulpWord[4], irsp->ulpTimeout); | |
dea3101e | 2274 | /* Check to see if link went down during discovery */ |
2e0fef85 | 2275 | lpfc_els_chk_latt(vport); |
dea3101e JB |
2276 | lpfc_els_free_iocb(phba, cmdiocb); |
2277 | return; | |
2278 | } | |
2279 | ||
e59058c4 | 2280 | /** |
3621a710 | 2281 | * lpfc_issue_els_scr - Issue a scr to an node on a vport |
e59058c4 JS |
2282 | * @vport: pointer to a host virtual N_Port data structure. |
2283 | * @nportid: N_Port identifier to the remote node. | |
2284 | * @retry: number of retries to the command IOCB. | |
2285 | * | |
2286 | * This routine issues a State Change Request (SCR) to a fabric node | |
2287 | * on a @vport. The remote node @nportid is passed into the function. It | |
2288 | * first search the @vport node list to find the matching ndlp. If no such | |
2289 | * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An | |
2290 | * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb() | |
2291 | * routine is invoked to send the SCR IOCB. | |
2292 | * | |
2293 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2294 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2295 | * will be stored into the context1 field of the IOCB for the completion | |
2296 | * callback function to the SCR ELS command. | |
2297 | * | |
2298 | * Return code | |
2299 | * 0 - Successfully issued scr command | |
2300 | * 1 - Failed to issue scr command | |
2301 | **/ | |
dea3101e | 2302 | int |
2e0fef85 | 2303 | lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2304 | { |
2e0fef85 | 2305 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
2306 | IOCB_t *icmd; |
2307 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2308 | struct lpfc_sli *psli; |
2309 | uint8_t *pcmd; | |
2310 | uint16_t cmdsize; | |
2311 | struct lpfc_nodelist *ndlp; | |
2312 | ||
2313 | psli = &phba->sli; | |
92d7f7b0 | 2314 | cmdsize = (sizeof(uint32_t) + sizeof(SCR)); |
dea3101e | 2315 | |
e47c9093 JS |
2316 | ndlp = lpfc_findnode_did(vport, nportid); |
2317 | if (!ndlp) { | |
2318 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2319 | if (!ndlp) | |
2320 | return 1; | |
2321 | lpfc_nlp_init(vport, ndlp, nportid); | |
2322 | lpfc_enqueue_node(vport, ndlp); | |
2323 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2324 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2325 | if (!ndlp) | |
2326 | return 1; | |
2327 | } | |
2e0fef85 JS |
2328 | |
2329 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2330 | ndlp->nlp_DID, ELS_CMD_SCR); | |
dea3101e | 2331 | |
488d1469 | 2332 | if (!elsiocb) { |
fa4066b6 JS |
2333 | /* This will trigger the release of the node just |
2334 | * allocated | |
2335 | */ | |
329f9bc7 | 2336 | lpfc_nlp_put(ndlp); |
c9f8735b | 2337 | return 1; |
dea3101e JB |
2338 | } |
2339 | ||
2340 | icmd = &elsiocb->iocb; | |
2341 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2342 | ||
2343 | *((uint32_t *) (pcmd)) = ELS_CMD_SCR; | |
92d7f7b0 | 2344 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2345 | |
2346 | /* For SCR, remainder of payload is SCR parameter page */ | |
92d7f7b0 | 2347 | memset(pcmd, 0, sizeof(SCR)); |
dea3101e JB |
2348 | ((SCR *) pcmd)->Function = SCR_FUNC_FULL; |
2349 | ||
858c9f6c JS |
2350 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2351 | "Issue SCR: did:x%x", | |
2352 | ndlp->nlp_DID, 0, 0); | |
2353 | ||
dea3101e JB |
2354 | phba->fc_stat.elsXmitSCR++; |
2355 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2356 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2357 | IOCB_ERROR) { | |
fa4066b6 JS |
2358 | /* The additional lpfc_nlp_put will cause the following |
2359 | * lpfc_els_free_iocb routine to trigger the rlease of | |
2360 | * the node. | |
2361 | */ | |
329f9bc7 | 2362 | lpfc_nlp_put(ndlp); |
dea3101e | 2363 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2364 | return 1; |
dea3101e | 2365 | } |
fa4066b6 JS |
2366 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2367 | * trigger the release of node. | |
2368 | */ | |
329f9bc7 | 2369 | lpfc_nlp_put(ndlp); |
c9f8735b | 2370 | return 0; |
dea3101e JB |
2371 | } |
2372 | ||
e59058c4 | 2373 | /** |
3621a710 | 2374 | * lpfc_issue_els_farpr - Issue a farp to an node on a vport |
e59058c4 JS |
2375 | * @vport: pointer to a host virtual N_Port data structure. |
2376 | * @nportid: N_Port identifier to the remote node. | |
2377 | * @retry: number of retries to the command IOCB. | |
2378 | * | |
2379 | * This routine issues a Fibre Channel Address Resolution Response | |
2380 | * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid) | |
2381 | * is passed into the function. It first search the @vport node list to find | |
2382 | * the matching ndlp. If no such ndlp is found, a new ndlp shall be created | |
2383 | * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the | |
2384 | * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command. | |
2385 | * | |
2386 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2387 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2388 | * will be stored into the context1 field of the IOCB for the completion | |
2389 | * callback function to the PARPR ELS command. | |
2390 | * | |
2391 | * Return code | |
2392 | * 0 - Successfully issued farpr command | |
2393 | * 1 - Failed to issue farpr command | |
2394 | **/ | |
dea3101e | 2395 | static int |
2e0fef85 | 2396 | lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2397 | { |
2e0fef85 | 2398 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
2399 | IOCB_t *icmd; |
2400 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2401 | struct lpfc_sli *psli; |
2402 | FARP *fp; | |
2403 | uint8_t *pcmd; | |
2404 | uint32_t *lp; | |
2405 | uint16_t cmdsize; | |
2406 | struct lpfc_nodelist *ondlp; | |
2407 | struct lpfc_nodelist *ndlp; | |
2408 | ||
2409 | psli = &phba->sli; | |
92d7f7b0 | 2410 | cmdsize = (sizeof(uint32_t) + sizeof(FARP)); |
dea3101e | 2411 | |
e47c9093 JS |
2412 | ndlp = lpfc_findnode_did(vport, nportid); |
2413 | if (!ndlp) { | |
2414 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2415 | if (!ndlp) | |
2416 | return 1; | |
2417 | lpfc_nlp_init(vport, ndlp, nportid); | |
2418 | lpfc_enqueue_node(vport, ndlp); | |
2419 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2420 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2421 | if (!ndlp) | |
2422 | return 1; | |
2423 | } | |
2e0fef85 JS |
2424 | |
2425 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2426 | ndlp->nlp_DID, ELS_CMD_RNID); | |
488d1469 | 2427 | if (!elsiocb) { |
fa4066b6 JS |
2428 | /* This will trigger the release of the node just |
2429 | * allocated | |
2430 | */ | |
329f9bc7 | 2431 | lpfc_nlp_put(ndlp); |
c9f8735b | 2432 | return 1; |
dea3101e JB |
2433 | } |
2434 | ||
2435 | icmd = &elsiocb->iocb; | |
2436 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2437 | ||
2438 | *((uint32_t *) (pcmd)) = ELS_CMD_FARPR; | |
92d7f7b0 | 2439 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2440 | |
2441 | /* Fill in FARPR payload */ | |
2442 | fp = (FARP *) (pcmd); | |
92d7f7b0 | 2443 | memset(fp, 0, sizeof(FARP)); |
dea3101e JB |
2444 | lp = (uint32_t *) pcmd; |
2445 | *lp++ = be32_to_cpu(nportid); | |
2e0fef85 | 2446 | *lp++ = be32_to_cpu(vport->fc_myDID); |
dea3101e JB |
2447 | fp->Rflags = 0; |
2448 | fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); | |
2449 | ||
92d7f7b0 JS |
2450 | memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2451 | memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2452 | ondlp = lpfc_findnode_did(vport, nportid); |
e47c9093 | 2453 | if (ondlp && NLP_CHK_NODE_ACT(ondlp)) { |
dea3101e | 2454 | memcpy(&fp->OportName, &ondlp->nlp_portname, |
92d7f7b0 | 2455 | sizeof(struct lpfc_name)); |
dea3101e | 2456 | memcpy(&fp->OnodeName, &ondlp->nlp_nodename, |
92d7f7b0 | 2457 | sizeof(struct lpfc_name)); |
dea3101e JB |
2458 | } |
2459 | ||
858c9f6c JS |
2460 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2461 | "Issue FARPR: did:x%x", | |
2462 | ndlp->nlp_DID, 0, 0); | |
2463 | ||
dea3101e JB |
2464 | phba->fc_stat.elsXmitFARPR++; |
2465 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2466 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2467 | IOCB_ERROR) { | |
fa4066b6 JS |
2468 | /* The additional lpfc_nlp_put will cause the following |
2469 | * lpfc_els_free_iocb routine to trigger the release of | |
2470 | * the node. | |
2471 | */ | |
329f9bc7 | 2472 | lpfc_nlp_put(ndlp); |
dea3101e | 2473 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2474 | return 1; |
dea3101e | 2475 | } |
fa4066b6 JS |
2476 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2477 | * trigger the release of the node. | |
2478 | */ | |
329f9bc7 | 2479 | lpfc_nlp_put(ndlp); |
c9f8735b | 2480 | return 0; |
dea3101e JB |
2481 | } |
2482 | ||
e59058c4 | 2483 | /** |
3621a710 | 2484 | * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry |
e59058c4 JS |
2485 | * @vport: pointer to a host virtual N_Port data structure. |
2486 | * @nlp: pointer to a node-list data structure. | |
2487 | * | |
2488 | * This routine cancels the timer with a delayed IOCB-command retry for | |
2489 | * a @vport's @ndlp. It stops the timer for the delayed function retrial and | |
2490 | * removes the ELS retry event if it presents. In addition, if the | |
2491 | * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB | |
2492 | * commands are sent for the @vport's nodes that require issuing discovery | |
2493 | * ADISC. | |
2494 | **/ | |
fdcebe28 | 2495 | void |
2e0fef85 | 2496 | lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) |
fdcebe28 | 2497 | { |
2e0fef85 | 2498 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
e47c9093 | 2499 | struct lpfc_work_evt *evtp; |
2e0fef85 | 2500 | |
0d2b6b83 JS |
2501 | if (!(nlp->nlp_flag & NLP_DELAY_TMO)) |
2502 | return; | |
2e0fef85 | 2503 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2504 | nlp->nlp_flag &= ~NLP_DELAY_TMO; |
2e0fef85 | 2505 | spin_unlock_irq(shost->host_lock); |
fdcebe28 JS |
2506 | del_timer_sync(&nlp->nlp_delayfunc); |
2507 | nlp->nlp_last_elscmd = 0; | |
e47c9093 | 2508 | if (!list_empty(&nlp->els_retry_evt.evt_listp)) { |
fdcebe28 | 2509 | list_del_init(&nlp->els_retry_evt.evt_listp); |
e47c9093 JS |
2510 | /* Decrement nlp reference count held for the delayed retry */ |
2511 | evtp = &nlp->els_retry_evt; | |
2512 | lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1); | |
2513 | } | |
fdcebe28 | 2514 | if (nlp->nlp_flag & NLP_NPR_2B_DISC) { |
2e0fef85 | 2515 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2516 | nlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 JS |
2517 | spin_unlock_irq(shost->host_lock); |
2518 | if (vport->num_disc_nodes) { | |
0d2b6b83 JS |
2519 | if (vport->port_state < LPFC_VPORT_READY) { |
2520 | /* Check if there are more ADISCs to be sent */ | |
2521 | lpfc_more_adisc(vport); | |
0d2b6b83 JS |
2522 | } else { |
2523 | /* Check if there are more PLOGIs to be sent */ | |
2524 | lpfc_more_plogi(vport); | |
90160e01 JS |
2525 | if (vport->num_disc_nodes == 0) { |
2526 | spin_lock_irq(shost->host_lock); | |
2527 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
2528 | spin_unlock_irq(shost->host_lock); | |
2529 | lpfc_can_disctmo(vport); | |
2530 | lpfc_end_rscn(vport); | |
2531 | } | |
fdcebe28 JS |
2532 | } |
2533 | } | |
2534 | } | |
2535 | return; | |
2536 | } | |
2537 | ||
e59058c4 | 2538 | /** |
3621a710 | 2539 | * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer |
e59058c4 JS |
2540 | * @ptr: holder for the pointer to the timer function associated data (ndlp). |
2541 | * | |
2542 | * This routine is invoked by the ndlp delayed-function timer to check | |
2543 | * whether there is any pending ELS retry event(s) with the node. If not, it | |
2544 | * simply returns. Otherwise, if there is at least one ELS delayed event, it | |
2545 | * adds the delayed events to the HBA work list and invokes the | |
2546 | * lpfc_worker_wake_up() routine to wake up worker thread to process the | |
2547 | * event. Note that lpfc_nlp_get() is called before posting the event to | |
2548 | * the work list to hold reference count of ndlp so that it guarantees the | |
2549 | * reference to ndlp will still be available when the worker thread gets | |
2550 | * to the event associated with the ndlp. | |
2551 | **/ | |
dea3101e JB |
2552 | void |
2553 | lpfc_els_retry_delay(unsigned long ptr) | |
2554 | { | |
2e0fef85 JS |
2555 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr; |
2556 | struct lpfc_vport *vport = ndlp->vport; | |
2e0fef85 | 2557 | struct lpfc_hba *phba = vport->phba; |
92d7f7b0 | 2558 | unsigned long flags; |
2e0fef85 | 2559 | struct lpfc_work_evt *evtp = &ndlp->els_retry_evt; |
dea3101e | 2560 | |
92d7f7b0 | 2561 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e | 2562 | if (!list_empty(&evtp->evt_listp)) { |
92d7f7b0 | 2563 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e JB |
2564 | return; |
2565 | } | |
2566 | ||
fa4066b6 JS |
2567 | /* We need to hold the node by incrementing the reference |
2568 | * count until the queued work is done | |
2569 | */ | |
2570 | evtp->evt_arg1 = lpfc_nlp_get(ndlp); | |
5e9d9b82 JS |
2571 | if (evtp->evt_arg1) { |
2572 | evtp->evt = LPFC_EVT_ELS_RETRY; | |
2573 | list_add_tail(&evtp->evt_listp, &phba->work_list); | |
92d7f7b0 | 2574 | lpfc_worker_wake_up(phba); |
5e9d9b82 | 2575 | } |
92d7f7b0 | 2576 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e JB |
2577 | return; |
2578 | } | |
2579 | ||
e59058c4 | 2580 | /** |
3621a710 | 2581 | * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function |
e59058c4 JS |
2582 | * @ndlp: pointer to a node-list data structure. |
2583 | * | |
2584 | * This routine is the worker-thread handler for processing the @ndlp delayed | |
2585 | * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves | |
2586 | * the last ELS command from the associated ndlp and invokes the proper ELS | |
2587 | * function according to the delayed ELS command to retry the command. | |
2588 | **/ | |
dea3101e JB |
2589 | void |
2590 | lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) | |
2591 | { | |
2e0fef85 JS |
2592 | struct lpfc_vport *vport = ndlp->vport; |
2593 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2594 | uint32_t cmd, did, retry; | |
dea3101e | 2595 | |
2e0fef85 | 2596 | spin_lock_irq(shost->host_lock); |
5024ab17 JW |
2597 | did = ndlp->nlp_DID; |
2598 | cmd = ndlp->nlp_last_elscmd; | |
2599 | ndlp->nlp_last_elscmd = 0; | |
dea3101e JB |
2600 | |
2601 | if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { | |
2e0fef85 | 2602 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
2603 | return; |
2604 | } | |
2605 | ||
2606 | ndlp->nlp_flag &= ~NLP_DELAY_TMO; | |
2e0fef85 | 2607 | spin_unlock_irq(shost->host_lock); |
1a169689 JS |
2608 | /* |
2609 | * If a discovery event readded nlp_delayfunc after timer | |
2610 | * firing and before processing the timer, cancel the | |
2611 | * nlp_delayfunc. | |
2612 | */ | |
2613 | del_timer_sync(&ndlp->nlp_delayfunc); | |
dea3101e | 2614 | retry = ndlp->nlp_retry; |
4d9ab994 | 2615 | ndlp->nlp_retry = 0; |
dea3101e JB |
2616 | |
2617 | switch (cmd) { | |
2618 | case ELS_CMD_FLOGI: | |
2e0fef85 | 2619 | lpfc_issue_els_flogi(vport, ndlp, retry); |
dea3101e JB |
2620 | break; |
2621 | case ELS_CMD_PLOGI: | |
2e0fef85 | 2622 | if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) { |
5024ab17 | 2623 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2624 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
6ad42535 | 2625 | } |
dea3101e JB |
2626 | break; |
2627 | case ELS_CMD_ADISC: | |
2e0fef85 | 2628 | if (!lpfc_issue_els_adisc(vport, ndlp, retry)) { |
5024ab17 | 2629 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2630 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
6ad42535 | 2631 | } |
dea3101e JB |
2632 | break; |
2633 | case ELS_CMD_PRLI: | |
2e0fef85 | 2634 | if (!lpfc_issue_els_prli(vport, ndlp, retry)) { |
5024ab17 | 2635 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2636 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
6ad42535 | 2637 | } |
dea3101e JB |
2638 | break; |
2639 | case ELS_CMD_LOGO: | |
2e0fef85 | 2640 | if (!lpfc_issue_els_logo(vport, ndlp, retry)) { |
5024ab17 | 2641 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2642 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
6ad42535 | 2643 | } |
dea3101e | 2644 | break; |
92d7f7b0 JS |
2645 | case ELS_CMD_FDISC: |
2646 | lpfc_issue_els_fdisc(vport, ndlp, retry); | |
2647 | break; | |
dea3101e JB |
2648 | } |
2649 | return; | |
2650 | } | |
2651 | ||
e59058c4 | 2652 | /** |
3621a710 | 2653 | * lpfc_els_retry - Make retry decision on an els command iocb |
e59058c4 JS |
2654 | * @phba: pointer to lpfc hba data structure. |
2655 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2656 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2657 | * | |
2658 | * This routine makes a retry decision on an ELS command IOCB, which has | |
2659 | * failed. The following ELS IOCBs use this function for retrying the command | |
2660 | * when previously issued command responsed with error status: FLOGI, PLOGI, | |
2661 | * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the | |
2662 | * returned error status, it makes the decision whether a retry shall be | |
2663 | * issued for the command, and whether a retry shall be made immediately or | |
2664 | * delayed. In the former case, the corresponding ELS command issuing-function | |
2665 | * is called to retry the command. In the later case, the ELS command shall | |
2666 | * be posted to the ndlp delayed event and delayed function timer set to the | |
2667 | * ndlp for the delayed command issusing. | |
2668 | * | |
2669 | * Return code | |
2670 | * 0 - No retry of els command is made | |
2671 | * 1 - Immediate or delayed retry of els command is made | |
2672 | **/ | |
dea3101e | 2673 | static int |
2e0fef85 JS |
2674 | lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2675 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2676 | { |
2e0fef85 JS |
2677 | struct lpfc_vport *vport = cmdiocb->vport; |
2678 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2679 | IOCB_t *irsp = &rspiocb->iocb; | |
2680 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2681 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
dea3101e JB |
2682 | uint32_t *elscmd; |
2683 | struct ls_rjt stat; | |
2e0fef85 | 2684 | int retry = 0, maxretry = lpfc_max_els_tries, delay = 0; |
98c9ea5c | 2685 | int logerr = 0; |
2e0fef85 | 2686 | uint32_t cmd = 0; |
488d1469 | 2687 | uint32_t did; |
dea3101e | 2688 | |
488d1469 | 2689 | |
dea3101e JB |
2690 | /* Note: context2 may be 0 for internal driver abort |
2691 | * of delays ELS command. | |
2692 | */ | |
2693 | ||
2694 | if (pcmd && pcmd->virt) { | |
2695 | elscmd = (uint32_t *) (pcmd->virt); | |
2696 | cmd = *elscmd++; | |
2697 | } | |
2698 | ||
e47c9093 | 2699 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
488d1469 JS |
2700 | did = ndlp->nlp_DID; |
2701 | else { | |
2702 | /* We should only hit this case for retrying PLOGI */ | |
2703 | did = irsp->un.elsreq64.remoteID; | |
2e0fef85 | 2704 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
2705 | if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp)) |
2706 | && (cmd != ELS_CMD_PLOGI)) | |
488d1469 JS |
2707 | return 1; |
2708 | } | |
2709 | ||
858c9f6c JS |
2710 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2711 | "Retry ELS: wd7:x%x wd4:x%x did:x%x", | |
2712 | *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID); | |
2713 | ||
dea3101e JB |
2714 | switch (irsp->ulpStatus) { |
2715 | case IOSTAT_FCP_RSP_ERROR: | |
2716 | case IOSTAT_REMOTE_STOP: | |
2717 | break; | |
2718 | ||
2719 | case IOSTAT_LOCAL_REJECT: | |
2720 | switch ((irsp->un.ulpWord[4] & 0xff)) { | |
2721 | case IOERR_LOOP_OPEN_FAILURE: | |
eaf15d5b JS |
2722 | if (cmd == ELS_CMD_FLOGI) { |
2723 | if (PCI_DEVICE_ID_HORNET == | |
2724 | phba->pcidev->device) { | |
2725 | phba->fc_topology = TOPOLOGY_LOOP; | |
2726 | phba->pport->fc_myDID = 0; | |
2727 | phba->alpa_map[0] = 0; | |
2728 | phba->alpa_map[1] = 0; | |
2729 | } | |
2730 | } | |
2e0fef85 | 2731 | if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0) |
92d7f7b0 | 2732 | delay = 1000; |
dea3101e JB |
2733 | retry = 1; |
2734 | break; | |
2735 | ||
92d7f7b0 | 2736 | case IOERR_ILLEGAL_COMMAND: |
7f5f3d0d JS |
2737 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2738 | "0124 Retry illegal cmd x%x " | |
2739 | "retry:x%x delay:x%x\n", | |
2740 | cmd, cmdiocb->retry, delay); | |
2741 | retry = 1; | |
2742 | /* All command's retry policy */ | |
2743 | maxretry = 8; | |
2744 | if (cmdiocb->retry > 2) | |
2745 | delay = 1000; | |
92d7f7b0 JS |
2746 | break; |
2747 | ||
dea3101e | 2748 | case IOERR_NO_RESOURCES: |
98c9ea5c | 2749 | logerr = 1; /* HBA out of resources */ |
858c9f6c JS |
2750 | retry = 1; |
2751 | if (cmdiocb->retry > 100) | |
2752 | delay = 100; | |
2753 | maxretry = 250; | |
2754 | break; | |
2755 | ||
2756 | case IOERR_ILLEGAL_FRAME: | |
92d7f7b0 | 2757 | delay = 100; |
dea3101e JB |
2758 | retry = 1; |
2759 | break; | |
2760 | ||
858c9f6c | 2761 | case IOERR_SEQUENCE_TIMEOUT: |
dea3101e JB |
2762 | case IOERR_INVALID_RPI: |
2763 | retry = 1; | |
2764 | break; | |
2765 | } | |
2766 | break; | |
2767 | ||
2768 | case IOSTAT_NPORT_RJT: | |
2769 | case IOSTAT_FABRIC_RJT: | |
2770 | if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
2771 | retry = 1; | |
2772 | break; | |
2773 | } | |
2774 | break; | |
2775 | ||
2776 | case IOSTAT_NPORT_BSY: | |
2777 | case IOSTAT_FABRIC_BSY: | |
98c9ea5c | 2778 | logerr = 1; /* Fabric / Remote NPort out of resources */ |
dea3101e JB |
2779 | retry = 1; |
2780 | break; | |
2781 | ||
2782 | case IOSTAT_LS_RJT: | |
2783 | stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]); | |
2784 | /* Added for Vendor specifc support | |
2785 | * Just keep retrying for these Rsn / Exp codes | |
2786 | */ | |
2787 | switch (stat.un.b.lsRjtRsnCode) { | |
2788 | case LSRJT_UNABLE_TPC: | |
2789 | if (stat.un.b.lsRjtRsnCodeExp == | |
2790 | LSEXP_CMD_IN_PROGRESS) { | |
2791 | if (cmd == ELS_CMD_PLOGI) { | |
92d7f7b0 | 2792 | delay = 1000; |
dea3101e JB |
2793 | maxretry = 48; |
2794 | } | |
2795 | retry = 1; | |
2796 | break; | |
2797 | } | |
ffc95493 JS |
2798 | if (stat.un.b.lsRjtRsnCodeExp == |
2799 | LSEXP_CANT_GIVE_DATA) { | |
2800 | if (cmd == ELS_CMD_PLOGI) { | |
2801 | delay = 1000; | |
2802 | maxretry = 48; | |
2803 | } | |
2804 | retry = 1; | |
2805 | break; | |
2806 | } | |
dea3101e | 2807 | if (cmd == ELS_CMD_PLOGI) { |
92d7f7b0 | 2808 | delay = 1000; |
dea3101e JB |
2809 | maxretry = lpfc_max_els_tries + 1; |
2810 | retry = 1; | |
2811 | break; | |
2812 | } | |
92d7f7b0 JS |
2813 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
2814 | (cmd == ELS_CMD_FDISC) && | |
2815 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){ | |
e8b62011 JS |
2816 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2817 | "0125 FDISC Failed (x%x). " | |
2818 | "Fabric out of resources\n", | |
2819 | stat.un.lsRjtError); | |
92d7f7b0 JS |
2820 | lpfc_vport_set_state(vport, |
2821 | FC_VPORT_NO_FABRIC_RSCS); | |
2822 | } | |
dea3101e JB |
2823 | break; |
2824 | ||
2825 | case LSRJT_LOGICAL_BSY: | |
858c9f6c JS |
2826 | if ((cmd == ELS_CMD_PLOGI) || |
2827 | (cmd == ELS_CMD_PRLI)) { | |
92d7f7b0 | 2828 | delay = 1000; |
dea3101e | 2829 | maxretry = 48; |
92d7f7b0 | 2830 | } else if (cmd == ELS_CMD_FDISC) { |
51ef4c26 JS |
2831 | /* FDISC retry policy */ |
2832 | maxretry = 48; | |
2833 | if (cmdiocb->retry >= 32) | |
2834 | delay = 1000; | |
dea3101e JB |
2835 | } |
2836 | retry = 1; | |
2837 | break; | |
92d7f7b0 JS |
2838 | |
2839 | case LSRJT_LOGICAL_ERR: | |
7f5f3d0d JS |
2840 | /* There are some cases where switches return this |
2841 | * error when they are not ready and should be returning | |
2842 | * Logical Busy. We should delay every time. | |
2843 | */ | |
2844 | if (cmd == ELS_CMD_FDISC && | |
2845 | stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) { | |
2846 | maxretry = 3; | |
2847 | delay = 1000; | |
2848 | retry = 1; | |
2849 | break; | |
2850 | } | |
92d7f7b0 JS |
2851 | case LSRJT_PROTOCOL_ERR: |
2852 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
2853 | (cmd == ELS_CMD_FDISC) && | |
2854 | ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) || | |
2855 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID)) | |
2856 | ) { | |
e8b62011 | 2857 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 2858 | "0122 FDISC Failed (x%x). " |
e8b62011 JS |
2859 | "Fabric Detected Bad WWN\n", |
2860 | stat.un.lsRjtError); | |
92d7f7b0 JS |
2861 | lpfc_vport_set_state(vport, |
2862 | FC_VPORT_FABRIC_REJ_WWN); | |
2863 | } | |
2864 | break; | |
dea3101e JB |
2865 | } |
2866 | break; | |
2867 | ||
2868 | case IOSTAT_INTERMED_RSP: | |
2869 | case IOSTAT_BA_RJT: | |
2870 | break; | |
2871 | ||
2872 | default: | |
2873 | break; | |
2874 | } | |
2875 | ||
488d1469 | 2876 | if (did == FDMI_DID) |
dea3101e | 2877 | retry = 1; |
dea3101e | 2878 | |
695a814e | 2879 | if (((cmd == ELS_CMD_FLOGI) || (cmd == ELS_CMD_FDISC)) && |
1b32f6aa JS |
2880 | (phba->fc_topology != TOPOLOGY_LOOP) && |
2881 | !lpfc_error_lost_link(irsp)) { | |
98c9ea5c JS |
2882 | /* FLOGI retry policy */ |
2883 | retry = 1; | |
6669f9bb JS |
2884 | /* retry forever */ |
2885 | maxretry = 0; | |
2886 | if (cmdiocb->retry >= 100) | |
2887 | delay = 5000; | |
2888 | else if (cmdiocb->retry >= 32) | |
98c9ea5c JS |
2889 | delay = 1000; |
2890 | } | |
2891 | ||
6669f9bb JS |
2892 | cmdiocb->retry++; |
2893 | if (maxretry && (cmdiocb->retry >= maxretry)) { | |
dea3101e JB |
2894 | phba->fc_stat.elsRetryExceeded++; |
2895 | retry = 0; | |
2896 | } | |
2897 | ||
ed957684 JS |
2898 | if ((vport->load_flag & FC_UNLOADING) != 0) |
2899 | retry = 0; | |
2900 | ||
dea3101e | 2901 | if (retry) { |
38b92ef8 JS |
2902 | if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) { |
2903 | /* Stop retrying PLOGI and FDISC if in FCF discovery */ | |
2904 | if (phba->fcf.fcf_flag & FCF_DISCOVERY) { | |
2905 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
2906 | "2849 Stop retry ELS command " | |
2907 | "x%x to remote NPORT x%x, " | |
2908 | "Data: x%x x%x\n", cmd, did, | |
2909 | cmdiocb->retry, delay); | |
2910 | return 0; | |
2911 | } | |
2912 | } | |
dea3101e JB |
2913 | |
2914 | /* Retry ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
2915 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2916 | "0107 Retry ELS command x%x to remote " | |
2917 | "NPORT x%x Data: x%x x%x\n", | |
2918 | cmd, did, cmdiocb->retry, delay); | |
dea3101e | 2919 | |
858c9f6c JS |
2920 | if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) && |
2921 | ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || | |
2922 | ((irsp->un.ulpWord[4] & 0xff) != IOERR_NO_RESOURCES))) { | |
2923 | /* Don't reset timer for no resources */ | |
2924 | ||
dea3101e | 2925 | /* If discovery / RSCN timer is running, reset it */ |
2e0fef85 | 2926 | if (timer_pending(&vport->fc_disctmo) || |
92d7f7b0 | 2927 | (vport->fc_flag & FC_RSCN_MODE)) |
2e0fef85 | 2928 | lpfc_set_disctmo(vport); |
dea3101e JB |
2929 | } |
2930 | ||
2931 | phba->fc_stat.elsXmitRetry++; | |
58da1ffb | 2932 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) { |
dea3101e JB |
2933 | phba->fc_stat.elsDelayRetry++; |
2934 | ndlp->nlp_retry = cmdiocb->retry; | |
2935 | ||
92d7f7b0 JS |
2936 | /* delay is specified in milliseconds */ |
2937 | mod_timer(&ndlp->nlp_delayfunc, | |
2938 | jiffies + msecs_to_jiffies(delay)); | |
2e0fef85 | 2939 | spin_lock_irq(shost->host_lock); |
dea3101e | 2940 | ndlp->nlp_flag |= NLP_DELAY_TMO; |
2e0fef85 | 2941 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2942 | |
5024ab17 | 2943 | ndlp->nlp_prev_state = ndlp->nlp_state; |
858c9f6c JS |
2944 | if (cmd == ELS_CMD_PRLI) |
2945 | lpfc_nlp_set_state(vport, ndlp, | |
2946 | NLP_STE_REG_LOGIN_ISSUE); | |
2947 | else | |
2948 | lpfc_nlp_set_state(vport, ndlp, | |
2949 | NLP_STE_NPR_NODE); | |
dea3101e JB |
2950 | ndlp->nlp_last_elscmd = cmd; |
2951 | ||
c9f8735b | 2952 | return 1; |
dea3101e JB |
2953 | } |
2954 | switch (cmd) { | |
2955 | case ELS_CMD_FLOGI: | |
2e0fef85 | 2956 | lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry); |
c9f8735b | 2957 | return 1; |
92d7f7b0 JS |
2958 | case ELS_CMD_FDISC: |
2959 | lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry); | |
2960 | return 1; | |
dea3101e | 2961 | case ELS_CMD_PLOGI: |
58da1ffb | 2962 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
488d1469 | 2963 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2964 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 2965 | NLP_STE_PLOGI_ISSUE); |
488d1469 | 2966 | } |
2e0fef85 | 2967 | lpfc_issue_els_plogi(vport, did, cmdiocb->retry); |
c9f8735b | 2968 | return 1; |
dea3101e | 2969 | case ELS_CMD_ADISC: |
5024ab17 | 2970 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
2971 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
2972 | lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 2973 | return 1; |
dea3101e | 2974 | case ELS_CMD_PRLI: |
5024ab17 | 2975 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
2976 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
2977 | lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 2978 | return 1; |
dea3101e | 2979 | case ELS_CMD_LOGO: |
5024ab17 | 2980 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
2981 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
2982 | lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 2983 | return 1; |
dea3101e JB |
2984 | } |
2985 | } | |
dea3101e | 2986 | /* No retry ELS command <elsCmd> to remote NPORT <did> */ |
98c9ea5c JS |
2987 | if (logerr) { |
2988 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
2989 | "0137 No retry ELS command x%x to remote " | |
2990 | "NPORT x%x: Out of Resources: Error:x%x/%x\n", | |
2991 | cmd, did, irsp->ulpStatus, | |
2992 | irsp->un.ulpWord[4]); | |
2993 | } | |
2994 | else { | |
2995 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
a58cbd52 JS |
2996 | "0108 No retry ELS command x%x to remote " |
2997 | "NPORT x%x Retried:%d Error:x%x/%x\n", | |
2998 | cmd, did, cmdiocb->retry, irsp->ulpStatus, | |
2999 | irsp->un.ulpWord[4]); | |
98c9ea5c | 3000 | } |
c9f8735b | 3001 | return 0; |
dea3101e JB |
3002 | } |
3003 | ||
e59058c4 | 3004 | /** |
3621a710 | 3005 | * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb |
e59058c4 JS |
3006 | * @phba: pointer to lpfc hba data structure. |
3007 | * @buf_ptr1: pointer to the lpfc DMA buffer data structure. | |
3008 | * | |
3009 | * This routine releases the lpfc DMA (Direct Memory Access) buffer(s) | |
3010 | * associated with a command IOCB back to the lpfc DMA buffer pool. It first | |
3011 | * checks to see whether there is a lpfc DMA buffer associated with the | |
3012 | * response of the command IOCB. If so, it will be released before releasing | |
3013 | * the lpfc DMA buffer associated with the IOCB itself. | |
3014 | * | |
3015 | * Return code | |
3016 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
3017 | **/ | |
09372820 | 3018 | static int |
87af33fe JS |
3019 | lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1) |
3020 | { | |
3021 | struct lpfc_dmabuf *buf_ptr; | |
3022 | ||
e59058c4 | 3023 | /* Free the response before processing the command. */ |
87af33fe JS |
3024 | if (!list_empty(&buf_ptr1->list)) { |
3025 | list_remove_head(&buf_ptr1->list, buf_ptr, | |
3026 | struct lpfc_dmabuf, | |
3027 | list); | |
3028 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
3029 | kfree(buf_ptr); | |
3030 | } | |
3031 | lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); | |
3032 | kfree(buf_ptr1); | |
3033 | return 0; | |
3034 | } | |
3035 | ||
e59058c4 | 3036 | /** |
3621a710 | 3037 | * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl |
e59058c4 JS |
3038 | * @phba: pointer to lpfc hba data structure. |
3039 | * @buf_ptr: pointer to the lpfc dma buffer data structure. | |
3040 | * | |
3041 | * This routine releases the lpfc Direct Memory Access (DMA) buffer | |
3042 | * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer | |
3043 | * pool. | |
3044 | * | |
3045 | * Return code | |
3046 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
3047 | **/ | |
09372820 | 3048 | static int |
87af33fe JS |
3049 | lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr) |
3050 | { | |
3051 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
3052 | kfree(buf_ptr); | |
3053 | return 0; | |
3054 | } | |
3055 | ||
e59058c4 | 3056 | /** |
3621a710 | 3057 | * lpfc_els_free_iocb - Free a command iocb and its associated resources |
e59058c4 JS |
3058 | * @phba: pointer to lpfc hba data structure. |
3059 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
3060 | * | |
3061 | * This routine frees a command IOCB and its associated resources. The | |
3062 | * command IOCB data structure contains the reference to various associated | |
3063 | * resources, these fields must be set to NULL if the associated reference | |
3064 | * not present: | |
3065 | * context1 - reference to ndlp | |
3066 | * context2 - reference to cmd | |
3067 | * context2->next - reference to rsp | |
3068 | * context3 - reference to bpl | |
3069 | * | |
3070 | * It first properly decrements the reference count held on ndlp for the | |
3071 | * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not | |
3072 | * set, it invokes the lpfc_els_free_data() routine to release the Direct | |
3073 | * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it | |
3074 | * adds the DMA buffer the @phba data structure for the delayed release. | |
3075 | * If reference to the Buffer Pointer List (BPL) is present, the | |
3076 | * lpfc_els_free_bpl() routine is invoked to release the DMA memory | |
3077 | * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is | |
3078 | * invoked to release the IOCB data structure back to @phba IOCBQ list. | |
3079 | * | |
3080 | * Return code | |
3081 | * 0 - Success (currently, always return 0) | |
3082 | **/ | |
dea3101e | 3083 | int |
329f9bc7 | 3084 | lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) |
dea3101e JB |
3085 | { |
3086 | struct lpfc_dmabuf *buf_ptr, *buf_ptr1; | |
a8adb832 JS |
3087 | struct lpfc_nodelist *ndlp; |
3088 | ||
3089 | ndlp = (struct lpfc_nodelist *)elsiocb->context1; | |
3090 | if (ndlp) { | |
3091 | if (ndlp->nlp_flag & NLP_DEFER_RM) { | |
3092 | lpfc_nlp_put(ndlp); | |
dea3101e | 3093 | |
a8adb832 JS |
3094 | /* If the ndlp is not being used by another discovery |
3095 | * thread, free it. | |
3096 | */ | |
3097 | if (!lpfc_nlp_not_used(ndlp)) { | |
3098 | /* If ndlp is being used by another discovery | |
3099 | * thread, just clear NLP_DEFER_RM | |
3100 | */ | |
3101 | ndlp->nlp_flag &= ~NLP_DEFER_RM; | |
3102 | } | |
3103 | } | |
3104 | else | |
3105 | lpfc_nlp_put(ndlp); | |
329f9bc7 JS |
3106 | elsiocb->context1 = NULL; |
3107 | } | |
dea3101e JB |
3108 | /* context2 = cmd, context2->next = rsp, context3 = bpl */ |
3109 | if (elsiocb->context2) { | |
0ff10d46 JS |
3110 | if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) { |
3111 | /* Firmware could still be in progress of DMAing | |
3112 | * payload, so don't free data buffer till after | |
3113 | * a hbeat. | |
3114 | */ | |
3115 | elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE; | |
3116 | buf_ptr = elsiocb->context2; | |
3117 | elsiocb->context2 = NULL; | |
3118 | if (buf_ptr) { | |
3119 | buf_ptr1 = NULL; | |
3120 | spin_lock_irq(&phba->hbalock); | |
3121 | if (!list_empty(&buf_ptr->list)) { | |
3122 | list_remove_head(&buf_ptr->list, | |
3123 | buf_ptr1, struct lpfc_dmabuf, | |
3124 | list); | |
3125 | INIT_LIST_HEAD(&buf_ptr1->list); | |
3126 | list_add_tail(&buf_ptr1->list, | |
3127 | &phba->elsbuf); | |
3128 | phba->elsbuf_cnt++; | |
3129 | } | |
3130 | INIT_LIST_HEAD(&buf_ptr->list); | |
3131 | list_add_tail(&buf_ptr->list, &phba->elsbuf); | |
3132 | phba->elsbuf_cnt++; | |
3133 | spin_unlock_irq(&phba->hbalock); | |
3134 | } | |
3135 | } else { | |
3136 | buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2; | |
3137 | lpfc_els_free_data(phba, buf_ptr1); | |
3138 | } | |
dea3101e JB |
3139 | } |
3140 | ||
3141 | if (elsiocb->context3) { | |
3142 | buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3; | |
87af33fe | 3143 | lpfc_els_free_bpl(phba, buf_ptr); |
dea3101e | 3144 | } |
604a3e30 | 3145 | lpfc_sli_release_iocbq(phba, elsiocb); |
dea3101e JB |
3146 | return 0; |
3147 | } | |
3148 | ||
e59058c4 | 3149 | /** |
3621a710 | 3150 | * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response |
e59058c4 JS |
3151 | * @phba: pointer to lpfc hba data structure. |
3152 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3153 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3154 | * | |
3155 | * This routine is the completion callback function to the Logout (LOGO) | |
3156 | * Accept (ACC) Response ELS command. This routine is invoked to indicate | |
3157 | * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to | |
3158 | * release the ndlp if it has the last reference remaining (reference count | |
3159 | * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1 | |
3160 | * field to NULL to inform the following lpfc_els_free_iocb() routine no | |
3161 | * ndlp reference count needs to be decremented. Otherwise, the ndlp | |
3162 | * reference use-count shall be decremented by the lpfc_els_free_iocb() | |
3163 | * routine. Finally, the lpfc_els_free_iocb() is invoked to release the | |
3164 | * IOCB data structure. | |
3165 | **/ | |
dea3101e | 3166 | static void |
2e0fef85 JS |
3167 | lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
3168 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 3169 | { |
2e0fef85 JS |
3170 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
3171 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c JS |
3172 | IOCB_t *irsp; |
3173 | ||
3174 | irsp = &rspiocb->iocb; | |
3175 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3176 | "ACC LOGO cmpl: status:x%x/x%x did:x%x", | |
3177 | irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID); | |
dea3101e | 3178 | /* ACC to LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
3179 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3180 | "0109 ACC to LOGO completes to NPort x%x " | |
3181 | "Data: x%x x%x x%x\n", | |
3182 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3183 | ndlp->nlp_rpi); | |
87af33fe JS |
3184 | |
3185 | if (ndlp->nlp_state == NLP_STE_NPR_NODE) { | |
3186 | /* NPort Recovery mode or node is just allocated */ | |
3187 | if (!lpfc_nlp_not_used(ndlp)) { | |
3188 | /* If the ndlp is being used by another discovery | |
3189 | * thread, just unregister the RPI. | |
3190 | */ | |
3191 | lpfc_unreg_rpi(vport, ndlp); | |
fa4066b6 JS |
3192 | } else { |
3193 | /* Indicate the node has already released, should | |
3194 | * not reference to it from within lpfc_els_free_iocb. | |
3195 | */ | |
3196 | cmdiocb->context1 = NULL; | |
87af33fe | 3197 | } |
dea3101e JB |
3198 | } |
3199 | lpfc_els_free_iocb(phba, cmdiocb); | |
3200 | return; | |
3201 | } | |
3202 | ||
e59058c4 | 3203 | /** |
3621a710 | 3204 | * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd |
e59058c4 JS |
3205 | * @phba: pointer to lpfc hba data structure. |
3206 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
3207 | * | |
3208 | * This routine is the completion callback function for unregister default | |
3209 | * RPI (Remote Port Index) mailbox command to the @phba. It simply releases | |
3210 | * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and | |
3211 | * decrements the ndlp reference count held for this completion callback | |
3212 | * function. After that, it invokes the lpfc_nlp_not_used() to check | |
3213 | * whether there is only one reference left on the ndlp. If so, it will | |
3214 | * perform one more decrement and trigger the release of the ndlp. | |
3215 | **/ | |
858c9f6c JS |
3216 | void |
3217 | lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
3218 | { | |
3219 | struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); | |
3220 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
3221 | ||
6fb120a7 JS |
3222 | /* |
3223 | * This routine is used to register and unregister in previous SLI | |
3224 | * modes. | |
3225 | */ | |
3226 | if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) && | |
3227 | (phba->sli_rev == LPFC_SLI_REV4)) | |
3228 | lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi); | |
3229 | ||
858c9f6c | 3230 | pmb->context1 = NULL; |
d439d286 JS |
3231 | pmb->context2 = NULL; |
3232 | ||
858c9f6c JS |
3233 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
3234 | kfree(mp); | |
3235 | mempool_free(pmb, phba->mbox_mem_pool); | |
58da1ffb | 3236 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
a8adb832 | 3237 | lpfc_nlp_put(ndlp); |
a8adb832 JS |
3238 | /* This is the end of the default RPI cleanup logic for this |
3239 | * ndlp. If no other discovery threads are using this ndlp. | |
3240 | * we should free all resources associated with it. | |
3241 | */ | |
3242 | lpfc_nlp_not_used(ndlp); | |
3243 | } | |
3772a991 | 3244 | |
858c9f6c JS |
3245 | return; |
3246 | } | |
3247 | ||
e59058c4 | 3248 | /** |
3621a710 | 3249 | * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd |
e59058c4 JS |
3250 | * @phba: pointer to lpfc hba data structure. |
3251 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3252 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3253 | * | |
3254 | * This routine is the completion callback function for ELS Response IOCB | |
3255 | * command. In normal case, this callback function just properly sets the | |
3256 | * nlp_flag bitmap in the ndlp data structure, if the mbox command reference | |
3257 | * field in the command IOCB is not NULL, the referred mailbox command will | |
3258 | * be send out, and then invokes the lpfc_els_free_iocb() routine to release | |
3259 | * the IOCB. Under error conditions, such as when a LS_RJT is returned or a | |
3260 | * link down event occurred during the discovery, the lpfc_nlp_not_used() | |
3261 | * routine shall be invoked trying to release the ndlp if no other threads | |
3262 | * are currently referring it. | |
3263 | **/ | |
dea3101e | 3264 | static void |
858c9f6c | 3265 | lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
329f9bc7 | 3266 | struct lpfc_iocbq *rspiocb) |
dea3101e | 3267 | { |
2e0fef85 JS |
3268 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
3269 | struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL; | |
3270 | struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL; | |
87af33fe JS |
3271 | IOCB_t *irsp; |
3272 | uint8_t *pcmd; | |
dea3101e | 3273 | LPFC_MBOXQ_t *mbox = NULL; |
2e0fef85 | 3274 | struct lpfc_dmabuf *mp = NULL; |
87af33fe | 3275 | uint32_t ls_rjt = 0; |
dea3101e | 3276 | |
33ccf8d1 JS |
3277 | irsp = &rspiocb->iocb; |
3278 | ||
dea3101e JB |
3279 | if (cmdiocb->context_un.mbox) |
3280 | mbox = cmdiocb->context_un.mbox; | |
3281 | ||
fa4066b6 JS |
3282 | /* First determine if this is a LS_RJT cmpl. Note, this callback |
3283 | * function can have cmdiocb->contest1 (ndlp) field set to NULL. | |
3284 | */ | |
87af33fe | 3285 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); |
58da1ffb JS |
3286 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3287 | (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) { | |
fa4066b6 | 3288 | /* A LS_RJT associated with Default RPI cleanup has its own |
3ad2f3fb | 3289 | * separate code path. |
87af33fe JS |
3290 | */ |
3291 | if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
3292 | ls_rjt = 1; | |
3293 | } | |
3294 | ||
dea3101e | 3295 | /* Check to see if link went down during discovery */ |
58da1ffb | 3296 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) { |
dea3101e | 3297 | if (mbox) { |
14691150 JS |
3298 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3299 | if (mp) { | |
3300 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3301 | kfree(mp); | |
3302 | } | |
329f9bc7 | 3303 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 3304 | } |
58da1ffb JS |
3305 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3306 | (ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
fa4066b6 | 3307 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3308 | ndlp = NULL; |
fa4066b6 JS |
3309 | /* Indicate the node has already released, |
3310 | * should not reference to it from within | |
3311 | * the routine lpfc_els_free_iocb. | |
3312 | */ | |
3313 | cmdiocb->context1 = NULL; | |
3314 | } | |
dea3101e JB |
3315 | goto out; |
3316 | } | |
3317 | ||
858c9f6c | 3318 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
51ef4c26 | 3319 | "ELS rsp cmpl: status:x%x/x%x did:x%x", |
858c9f6c | 3320 | irsp->ulpStatus, irsp->un.ulpWord[4], |
51ef4c26 | 3321 | cmdiocb->iocb.un.elsreq64.remoteID); |
dea3101e | 3322 | /* ELS response tag <ulpIoTag> completes */ |
e8b62011 JS |
3323 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3324 | "0110 ELS response tag x%x completes " | |
3325 | "Data: x%x x%x x%x x%x x%x x%x x%x\n", | |
3326 | cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus, | |
3327 | rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout, | |
3328 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3329 | ndlp->nlp_rpi); | |
dea3101e JB |
3330 | if (mbox) { |
3331 | if ((rspiocb->iocb.ulpStatus == 0) | |
3332 | && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) { | |
2e0fef85 | 3333 | lpfc_unreg_rpi(vport, ndlp); |
e47c9093 JS |
3334 | /* Increment reference count to ndlp to hold the |
3335 | * reference to ndlp for the callback function. | |
3336 | */ | |
329f9bc7 | 3337 | mbox->context2 = lpfc_nlp_get(ndlp); |
2e0fef85 | 3338 | mbox->vport = vport; |
858c9f6c JS |
3339 | if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) { |
3340 | mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; | |
3341 | mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; | |
3342 | } | |
3343 | else { | |
3344 | mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; | |
3345 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
3346 | lpfc_nlp_set_state(vport, ndlp, | |
2e0fef85 | 3347 | NLP_STE_REG_LOGIN_ISSUE); |
858c9f6c | 3348 | } |
0b727fea | 3349 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
e47c9093 | 3350 | != MBX_NOT_FINISHED) |
dea3101e | 3351 | goto out; |
e47c9093 JS |
3352 | else |
3353 | /* Decrement the ndlp reference count we | |
3354 | * set for this failed mailbox command. | |
3355 | */ | |
3356 | lpfc_nlp_put(ndlp); | |
98c9ea5c JS |
3357 | |
3358 | /* ELS rsp: Cannot issue reg_login for <NPortid> */ | |
3359 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3360 | "0138 ELS rsp: Cannot issue reg_login for x%x " | |
3361 | "Data: x%x x%x x%x\n", | |
3362 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3363 | ndlp->nlp_rpi); | |
3364 | ||
fa4066b6 | 3365 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3366 | ndlp = NULL; |
fa4066b6 JS |
3367 | /* Indicate node has already been released, |
3368 | * should not reference to it from within | |
3369 | * the routine lpfc_els_free_iocb. | |
3370 | */ | |
3371 | cmdiocb->context1 = NULL; | |
3372 | } | |
dea3101e | 3373 | } else { |
858c9f6c JS |
3374 | /* Do not drop node for lpfc_els_abort'ed ELS cmds */ |
3375 | if (!lpfc_error_lost_link(irsp) && | |
3376 | ndlp->nlp_flag & NLP_ACC_REGLOGIN) { | |
fa4066b6 | 3377 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3378 | ndlp = NULL; |
fa4066b6 JS |
3379 | /* Indicate node has already been |
3380 | * released, should not reference | |
3381 | * to it from within the routine | |
3382 | * lpfc_els_free_iocb. | |
3383 | */ | |
3384 | cmdiocb->context1 = NULL; | |
3385 | } | |
dea3101e JB |
3386 | } |
3387 | } | |
14691150 JS |
3388 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3389 | if (mp) { | |
3390 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3391 | kfree(mp); | |
3392 | } | |
3393 | mempool_free(mbox, phba->mbox_mem_pool); | |
dea3101e JB |
3394 | } |
3395 | out: | |
58da1ffb | 3396 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
2e0fef85 | 3397 | spin_lock_irq(shost->host_lock); |
858c9f6c | 3398 | ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI); |
2e0fef85 | 3399 | spin_unlock_irq(shost->host_lock); |
87af33fe JS |
3400 | |
3401 | /* If the node is not being used by another discovery thread, | |
3402 | * and we are sending a reject, we are done with it. | |
3403 | * Release driver reference count here and free associated | |
3404 | * resources. | |
3405 | */ | |
3406 | if (ls_rjt) | |
fa4066b6 JS |
3407 | if (lpfc_nlp_not_used(ndlp)) |
3408 | /* Indicate node has already been released, | |
3409 | * should not reference to it from within | |
3410 | * the routine lpfc_els_free_iocb. | |
3411 | */ | |
3412 | cmdiocb->context1 = NULL; | |
dea3101e | 3413 | } |
87af33fe | 3414 | |
dea3101e JB |
3415 | lpfc_els_free_iocb(phba, cmdiocb); |
3416 | return; | |
3417 | } | |
3418 | ||
e59058c4 | 3419 | /** |
3621a710 | 3420 | * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command |
e59058c4 JS |
3421 | * @vport: pointer to a host virtual N_Port data structure. |
3422 | * @flag: the els command code to be accepted. | |
3423 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3424 | * @ndlp: pointer to a node-list data structure. | |
3425 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3426 | * | |
3427 | * This routine prepares and issues an Accept (ACC) response IOCB | |
3428 | * command. It uses the @flag to properly set up the IOCB field for the | |
3429 | * specific ACC response command to be issued and invokes the | |
3430 | * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a | |
3431 | * @mbox pointer is passed in, it will be put into the context_un.mbox | |
3432 | * field of the IOCB for the completion callback function to issue the | |
3433 | * mailbox command to the HBA later when callback is invoked. | |
3434 | * | |
3435 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3436 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3437 | * will be stored into the context1 field of the IOCB for the completion | |
3438 | * callback function to the corresponding response ELS IOCB command. | |
3439 | * | |
3440 | * Return code | |
3441 | * 0 - Successfully issued acc response | |
3442 | * 1 - Failed to issue acc response | |
3443 | **/ | |
dea3101e | 3444 | int |
2e0fef85 JS |
3445 | lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, |
3446 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, | |
51ef4c26 | 3447 | LPFC_MBOXQ_t *mbox) |
dea3101e | 3448 | { |
2e0fef85 JS |
3449 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
3450 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
3451 | IOCB_t *icmd; |
3452 | IOCB_t *oldcmd; | |
3453 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3454 | struct lpfc_sli *psli; |
3455 | uint8_t *pcmd; | |
3456 | uint16_t cmdsize; | |
3457 | int rc; | |
82d9a2a2 | 3458 | ELS_PKT *els_pkt_ptr; |
dea3101e JB |
3459 | |
3460 | psli = &phba->sli; | |
dea3101e JB |
3461 | oldcmd = &oldiocb->iocb; |
3462 | ||
3463 | switch (flag) { | |
3464 | case ELS_CMD_ACC: | |
92d7f7b0 | 3465 | cmdsize = sizeof(uint32_t); |
2e0fef85 JS |
3466 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3467 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3468 | if (!elsiocb) { |
2e0fef85 | 3469 | spin_lock_irq(shost->host_lock); |
5024ab17 | 3470 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3471 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 3472 | return 1; |
dea3101e | 3473 | } |
2e0fef85 | 3474 | |
dea3101e JB |
3475 | icmd = &elsiocb->iocb; |
3476 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3477 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3478 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3479 | pcmd += sizeof(uint32_t); |
858c9f6c JS |
3480 | |
3481 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3482 | "Issue ACC: did:x%x flg:x%x", | |
3483 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e JB |
3484 | break; |
3485 | case ELS_CMD_PLOGI: | |
92d7f7b0 | 3486 | cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t)); |
2e0fef85 JS |
3487 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3488 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3489 | if (!elsiocb) |
c9f8735b | 3490 | return 1; |
488d1469 | 3491 | |
dea3101e JB |
3492 | icmd = &elsiocb->iocb; |
3493 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3494 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3495 | ||
3496 | if (mbox) | |
3497 | elsiocb->context_un.mbox = mbox; | |
3498 | ||
3499 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 JS |
3500 | pcmd += sizeof(uint32_t); |
3501 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
858c9f6c JS |
3502 | |
3503 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3504 | "Issue ACC PLOGI: did:x%x flg:x%x", | |
3505 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e | 3506 | break; |
82d9a2a2 | 3507 | case ELS_CMD_PRLO: |
92d7f7b0 | 3508 | cmdsize = sizeof(uint32_t) + sizeof(PRLO); |
2e0fef85 | 3509 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
82d9a2a2 JS |
3510 | ndlp, ndlp->nlp_DID, ELS_CMD_PRLO); |
3511 | if (!elsiocb) | |
3512 | return 1; | |
3513 | ||
3514 | icmd = &elsiocb->iocb; | |
3515 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3516 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3517 | ||
3518 | memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt, | |
92d7f7b0 | 3519 | sizeof(uint32_t) + sizeof(PRLO)); |
82d9a2a2 JS |
3520 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC; |
3521 | els_pkt_ptr = (ELS_PKT *) pcmd; | |
3522 | els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED; | |
858c9f6c JS |
3523 | |
3524 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3525 | "Issue ACC PRLO: did:x%x flg:x%x", | |
3526 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
82d9a2a2 | 3527 | break; |
dea3101e | 3528 | default: |
c9f8735b | 3529 | return 1; |
dea3101e | 3530 | } |
dea3101e | 3531 | /* Xmit ELS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3532 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3533 | "0128 Xmit ELS ACC response tag x%x, XRI: x%x, " | |
3534 | "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x\n", | |
3535 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3536 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3537 | ndlp->nlp_rpi); | |
dea3101e | 3538 | if (ndlp->nlp_flag & NLP_LOGO_ACC) { |
2e0fef85 | 3539 | spin_lock_irq(shost->host_lock); |
c9f8735b | 3540 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3541 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
3542 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc; |
3543 | } else { | |
858c9f6c | 3544 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e JB |
3545 | } |
3546 | ||
3547 | phba->fc_stat.elsXmitACC++; | |
3772a991 | 3548 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3549 | if (rc == IOCB_ERROR) { |
3550 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3551 | return 1; |
dea3101e | 3552 | } |
c9f8735b | 3553 | return 0; |
dea3101e JB |
3554 | } |
3555 | ||
e59058c4 | 3556 | /** |
3621a710 | 3557 | * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command |
e59058c4 JS |
3558 | * @vport: pointer to a virtual N_Port data structure. |
3559 | * @rejectError: | |
3560 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3561 | * @ndlp: pointer to a node-list data structure. | |
3562 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3563 | * | |
3564 | * This routine prepares and issue an Reject (RJT) response IOCB | |
3565 | * command. If a @mbox pointer is passed in, it will be put into the | |
3566 | * context_un.mbox field of the IOCB for the completion callback function | |
3567 | * to issue to the HBA later. | |
3568 | * | |
3569 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3570 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3571 | * will be stored into the context1 field of the IOCB for the completion | |
3572 | * callback function to the reject response ELS IOCB command. | |
3573 | * | |
3574 | * Return code | |
3575 | * 0 - Successfully issued reject response | |
3576 | * 1 - Failed to issue reject response | |
3577 | **/ | |
dea3101e | 3578 | int |
2e0fef85 | 3579 | lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, |
858c9f6c JS |
3580 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, |
3581 | LPFC_MBOXQ_t *mbox) | |
dea3101e | 3582 | { |
2e0fef85 | 3583 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
3584 | IOCB_t *icmd; |
3585 | IOCB_t *oldcmd; | |
3586 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3587 | struct lpfc_sli *psli; |
3588 | uint8_t *pcmd; | |
3589 | uint16_t cmdsize; | |
3590 | int rc; | |
3591 | ||
3592 | psli = &phba->sli; | |
92d7f7b0 | 3593 | cmdsize = 2 * sizeof(uint32_t); |
2e0fef85 JS |
3594 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3595 | ndlp->nlp_DID, ELS_CMD_LS_RJT); | |
488d1469 | 3596 | if (!elsiocb) |
c9f8735b | 3597 | return 1; |
dea3101e JB |
3598 | |
3599 | icmd = &elsiocb->iocb; | |
3600 | oldcmd = &oldiocb->iocb; | |
3601 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3602 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3603 | ||
3604 | *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; | |
92d7f7b0 | 3605 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3606 | *((uint32_t *) (pcmd)) = rejectError; |
3607 | ||
51ef4c26 | 3608 | if (mbox) |
858c9f6c | 3609 | elsiocb->context_un.mbox = mbox; |
858c9f6c | 3610 | |
dea3101e | 3611 | /* Xmit ELS RJT <err> response tag <ulpIoTag> */ |
e8b62011 JS |
3612 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3613 | "0129 Xmit ELS RJT x%x response tag x%x " | |
3614 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
3615 | "rpi x%x\n", | |
3616 | rejectError, elsiocb->iotag, | |
3617 | elsiocb->iocb.ulpContext, ndlp->nlp_DID, | |
3618 | ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); | |
858c9f6c JS |
3619 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3620 | "Issue LS_RJT: did:x%x flg:x%x err:x%x", | |
3621 | ndlp->nlp_DID, ndlp->nlp_flag, rejectError); | |
3622 | ||
dea3101e | 3623 | phba->fc_stat.elsXmitLSRJT++; |
858c9f6c | 3624 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 3625 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
51ef4c26 | 3626 | |
dea3101e JB |
3627 | if (rc == IOCB_ERROR) { |
3628 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3629 | return 1; |
dea3101e | 3630 | } |
c9f8735b | 3631 | return 0; |
dea3101e JB |
3632 | } |
3633 | ||
e59058c4 | 3634 | /** |
3621a710 | 3635 | * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd |
e59058c4 JS |
3636 | * @vport: pointer to a virtual N_Port data structure. |
3637 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3638 | * @ndlp: pointer to a node-list data structure. | |
3639 | * | |
3640 | * This routine prepares and issues an Accept (ACC) response to Address | |
3641 | * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB | |
3642 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
3643 | * | |
3644 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3645 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3646 | * will be stored into the context1 field of the IOCB for the completion | |
3647 | * callback function to the ADISC Accept response ELS IOCB command. | |
3648 | * | |
3649 | * Return code | |
3650 | * 0 - Successfully issued acc adisc response | |
3651 | * 1 - Failed to issue adisc acc response | |
3652 | **/ | |
dea3101e | 3653 | int |
2e0fef85 JS |
3654 | lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
3655 | struct lpfc_nodelist *ndlp) | |
dea3101e | 3656 | { |
2e0fef85 | 3657 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3658 | ADISC *ap; |
2e0fef85 | 3659 | IOCB_t *icmd, *oldcmd; |
dea3101e | 3660 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
3661 | uint8_t *pcmd; |
3662 | uint16_t cmdsize; | |
3663 | int rc; | |
3664 | ||
92d7f7b0 | 3665 | cmdsize = sizeof(uint32_t) + sizeof(ADISC); |
2e0fef85 JS |
3666 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3667 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3668 | if (!elsiocb) |
c9f8735b | 3669 | return 1; |
dea3101e | 3670 | |
5b8bd0c9 JS |
3671 | icmd = &elsiocb->iocb; |
3672 | oldcmd = &oldiocb->iocb; | |
3673 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3674 | ||
dea3101e | 3675 | /* Xmit ADISC ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3676 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3677 | "0130 Xmit ADISC ACC response iotag x%x xri: " | |
3678 | "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n", | |
3679 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3680 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3681 | ndlp->nlp_rpi); | |
dea3101e JB |
3682 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3683 | ||
3684 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3685 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3686 | |
3687 | ap = (ADISC *) (pcmd); | |
3688 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
3689 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
3690 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 3691 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 3692 | |
858c9f6c JS |
3693 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3694 | "Issue ACC ADISC: did:x%x flg:x%x", | |
3695 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3696 | ||
dea3101e | 3697 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3698 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 3699 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3700 | if (rc == IOCB_ERROR) { |
3701 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3702 | return 1; |
dea3101e | 3703 | } |
c9f8735b | 3704 | return 0; |
dea3101e JB |
3705 | } |
3706 | ||
e59058c4 | 3707 | /** |
3621a710 | 3708 | * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd |
e59058c4 JS |
3709 | * @vport: pointer to a virtual N_Port data structure. |
3710 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3711 | * @ndlp: pointer to a node-list data structure. | |
3712 | * | |
3713 | * This routine prepares and issues an Accept (ACC) response to Process | |
3714 | * Login (PRLI) ELS command. It simply prepares the payload of the IOCB | |
3715 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
3716 | * | |
3717 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3718 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3719 | * will be stored into the context1 field of the IOCB for the completion | |
3720 | * callback function to the PRLI Accept response ELS IOCB command. | |
3721 | * | |
3722 | * Return code | |
3723 | * 0 - Successfully issued acc prli response | |
3724 | * 1 - Failed to issue acc prli response | |
3725 | **/ | |
dea3101e | 3726 | int |
2e0fef85 | 3727 | lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
5b8bd0c9 | 3728 | struct lpfc_nodelist *ndlp) |
dea3101e | 3729 | { |
2e0fef85 | 3730 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
3731 | PRLI *npr; |
3732 | lpfc_vpd_t *vpd; | |
3733 | IOCB_t *icmd; | |
3734 | IOCB_t *oldcmd; | |
3735 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3736 | struct lpfc_sli *psli; |
3737 | uint8_t *pcmd; | |
3738 | uint16_t cmdsize; | |
3739 | int rc; | |
3740 | ||
3741 | psli = &phba->sli; | |
dea3101e | 3742 | |
92d7f7b0 | 3743 | cmdsize = sizeof(uint32_t) + sizeof(PRLI); |
2e0fef85 | 3744 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
92d7f7b0 | 3745 | ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK))); |
c9f8735b JW |
3746 | if (!elsiocb) |
3747 | return 1; | |
dea3101e | 3748 | |
5b8bd0c9 JS |
3749 | icmd = &elsiocb->iocb; |
3750 | oldcmd = &oldiocb->iocb; | |
3751 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
dea3101e | 3752 | /* Xmit PRLI ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3753 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3754 | "0131 Xmit PRLI ACC response tag x%x xri x%x, " | |
3755 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
3756 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3757 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3758 | ndlp->nlp_rpi); | |
dea3101e JB |
3759 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3760 | ||
3761 | *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); | |
92d7f7b0 | 3762 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3763 | |
3764 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
92d7f7b0 | 3765 | memset(pcmd, 0, sizeof(PRLI)); |
dea3101e JB |
3766 | |
3767 | npr = (PRLI *) pcmd; | |
3768 | vpd = &phba->vpd; | |
3769 | /* | |
0d2b6b83 JS |
3770 | * If the remote port is a target and our firmware version is 3.20 or |
3771 | * later, set the following bits for FC-TAPE support. | |
dea3101e | 3772 | */ |
0d2b6b83 JS |
3773 | if ((ndlp->nlp_type & NLP_FCP_TARGET) && |
3774 | (vpd->rev.feaLevelHigh >= 0x02)) { | |
dea3101e JB |
3775 | npr->ConfmComplAllowed = 1; |
3776 | npr->Retry = 1; | |
3777 | npr->TaskRetryIdReq = 1; | |
3778 | } | |
3779 | ||
3780 | npr->acceptRspCode = PRLI_REQ_EXECUTED; | |
3781 | npr->estabImagePair = 1; | |
3782 | npr->readXferRdyDis = 1; | |
3783 | npr->ConfmComplAllowed = 1; | |
3784 | ||
3785 | npr->prliType = PRLI_FCP_TYPE; | |
3786 | npr->initiatorFunc = 1; | |
3787 | ||
858c9f6c JS |
3788 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3789 | "Issue ACC PRLI: did:x%x flg:x%x", | |
3790 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3791 | ||
dea3101e | 3792 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3793 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 3794 | |
3772a991 | 3795 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3796 | if (rc == IOCB_ERROR) { |
3797 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3798 | return 1; |
dea3101e | 3799 | } |
c9f8735b | 3800 | return 0; |
dea3101e JB |
3801 | } |
3802 | ||
e59058c4 | 3803 | /** |
3621a710 | 3804 | * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command |
e59058c4 JS |
3805 | * @vport: pointer to a virtual N_Port data structure. |
3806 | * @format: rnid command format. | |
3807 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3808 | * @ndlp: pointer to a node-list data structure. | |
3809 | * | |
3810 | * This routine issues a Request Node Identification Data (RNID) Accept | |
3811 | * (ACC) response. It constructs the RNID ACC response command according to | |
3812 | * the proper @format and then calls the lpfc_sli_issue_iocb() routine to | |
3813 | * issue the response. Note that this command does not need to hold the ndlp | |
3814 | * reference count for the callback. So, the ndlp reference count taken by | |
3815 | * the lpfc_prep_els_iocb() routine is put back and the context1 field of | |
3816 | * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that | |
3817 | * there is no ndlp reference available. | |
3818 | * | |
3819 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3820 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3821 | * will be stored into the context1 field of the IOCB for the completion | |
3822 | * callback function. However, for the RNID Accept Response ELS command, | |
3823 | * this is undone later by this routine after the IOCB is allocated. | |
3824 | * | |
3825 | * Return code | |
3826 | * 0 - Successfully issued acc rnid response | |
3827 | * 1 - Failed to issue acc rnid response | |
3828 | **/ | |
dea3101e | 3829 | static int |
2e0fef85 | 3830 | lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, |
329f9bc7 | 3831 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) |
dea3101e | 3832 | { |
2e0fef85 | 3833 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3834 | RNID *rn; |
2e0fef85 | 3835 | IOCB_t *icmd, *oldcmd; |
dea3101e | 3836 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
3837 | struct lpfc_sli *psli; |
3838 | uint8_t *pcmd; | |
3839 | uint16_t cmdsize; | |
3840 | int rc; | |
3841 | ||
3842 | psli = &phba->sli; | |
92d7f7b0 JS |
3843 | cmdsize = sizeof(uint32_t) + sizeof(uint32_t) |
3844 | + (2 * sizeof(struct lpfc_name)); | |
dea3101e | 3845 | if (format) |
92d7f7b0 | 3846 | cmdsize += sizeof(RNID_TOP_DISC); |
dea3101e | 3847 | |
2e0fef85 JS |
3848 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3849 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3850 | if (!elsiocb) |
c9f8735b | 3851 | return 1; |
dea3101e | 3852 | |
5b8bd0c9 JS |
3853 | icmd = &elsiocb->iocb; |
3854 | oldcmd = &oldiocb->iocb; | |
3855 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
dea3101e | 3856 | /* Xmit RNID ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3857 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3858 | "0132 Xmit RNID ACC response tag x%x xri x%x\n", | |
3859 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
dea3101e | 3860 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
dea3101e | 3861 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
92d7f7b0 | 3862 | pcmd += sizeof(uint32_t); |
dea3101e | 3863 | |
92d7f7b0 | 3864 | memset(pcmd, 0, sizeof(RNID)); |
dea3101e JB |
3865 | rn = (RNID *) (pcmd); |
3866 | rn->Format = format; | |
92d7f7b0 JS |
3867 | rn->CommonLen = (2 * sizeof(struct lpfc_name)); |
3868 | memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name)); | |
3869 | memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
dea3101e JB |
3870 | switch (format) { |
3871 | case 0: | |
3872 | rn->SpecificLen = 0; | |
3873 | break; | |
3874 | case RNID_TOPOLOGY_DISC: | |
92d7f7b0 | 3875 | rn->SpecificLen = sizeof(RNID_TOP_DISC); |
dea3101e | 3876 | memcpy(&rn->un.topologyDisc.portName, |
92d7f7b0 | 3877 | &vport->fc_portname, sizeof(struct lpfc_name)); |
dea3101e JB |
3878 | rn->un.topologyDisc.unitType = RNID_HBA; |
3879 | rn->un.topologyDisc.physPort = 0; | |
3880 | rn->un.topologyDisc.attachedNodes = 0; | |
3881 | break; | |
3882 | default: | |
3883 | rn->CommonLen = 0; | |
3884 | rn->SpecificLen = 0; | |
3885 | break; | |
3886 | } | |
3887 | ||
858c9f6c JS |
3888 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3889 | "Issue ACC RNID: did:x%x flg:x%x", | |
3890 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3891 | ||
dea3101e | 3892 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3893 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
329f9bc7 | 3894 | lpfc_nlp_put(ndlp); |
dea3101e JB |
3895 | elsiocb->context1 = NULL; /* Don't need ndlp for cmpl, |
3896 | * it could be freed */ | |
3897 | ||
3772a991 | 3898 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3899 | if (rc == IOCB_ERROR) { |
3900 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3901 | return 1; |
dea3101e | 3902 | } |
c9f8735b | 3903 | return 0; |
dea3101e JB |
3904 | } |
3905 | ||
12265f68 JS |
3906 | /** |
3907 | * lpfc_els_rsp_echo_acc - Issue echo acc response | |
3908 | * @vport: pointer to a virtual N_Port data structure. | |
3909 | * @data: pointer to echo data to return in the accept. | |
3910 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3911 | * @ndlp: pointer to a node-list data structure. | |
3912 | * | |
3913 | * Return code | |
3914 | * 0 - Successfully issued acc echo response | |
3915 | * 1 - Failed to issue acc echo response | |
3916 | **/ | |
3917 | static int | |
3918 | lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data, | |
3919 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
3920 | { | |
3921 | struct lpfc_hba *phba = vport->phba; | |
3922 | struct lpfc_iocbq *elsiocb; | |
3923 | struct lpfc_sli *psli; | |
3924 | uint8_t *pcmd; | |
3925 | uint16_t cmdsize; | |
3926 | int rc; | |
3927 | ||
3928 | psli = &phba->sli; | |
3929 | cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len; | |
3930 | ||
3931 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, | |
3932 | ndlp->nlp_DID, ELS_CMD_ACC); | |
3933 | if (!elsiocb) | |
3934 | return 1; | |
3935 | ||
3936 | elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri */ | |
3937 | /* Xmit ECHO ACC response tag <ulpIoTag> */ | |
3938 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
3939 | "2876 Xmit ECHO ACC response tag x%x xri x%x\n", | |
3940 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
3941 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3942 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
3943 | pcmd += sizeof(uint32_t); | |
3944 | memcpy(pcmd, data, cmdsize - sizeof(uint32_t)); | |
3945 | ||
3946 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3947 | "Issue ACC ECHO: did:x%x flg:x%x", | |
3948 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3949 | ||
3950 | phba->fc_stat.elsXmitACC++; | |
3951 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
3952 | lpfc_nlp_put(ndlp); | |
3953 | elsiocb->context1 = NULL; /* Don't need ndlp for cmpl, | |
3954 | * it could be freed */ | |
3955 | ||
3956 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); | |
3957 | if (rc == IOCB_ERROR) { | |
3958 | lpfc_els_free_iocb(phba, elsiocb); | |
3959 | return 1; | |
3960 | } | |
3961 | return 0; | |
3962 | } | |
3963 | ||
e59058c4 | 3964 | /** |
3621a710 | 3965 | * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport |
e59058c4 JS |
3966 | * @vport: pointer to a host virtual N_Port data structure. |
3967 | * | |
3968 | * This routine issues Address Discover (ADISC) ELS commands to those | |
3969 | * N_Ports which are in node port recovery state and ADISC has not been issued | |
3970 | * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the | |
3971 | * lpfc_issue_els_adisc() routine, the per @vport number of discover count | |
3972 | * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a | |
3973 | * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will | |
3974 | * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC | |
3975 | * IOCBs quit for later pick up. On the other hand, after walking through | |
3976 | * all the ndlps with the @vport and there is none ADISC IOCB issued, the | |
3977 | * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is | |
3978 | * no more ADISC need to be sent. | |
3979 | * | |
3980 | * Return code | |
3981 | * The number of N_Ports with adisc issued. | |
3982 | **/ | |
dea3101e | 3983 | int |
2e0fef85 | 3984 | lpfc_els_disc_adisc(struct lpfc_vport *vport) |
dea3101e | 3985 | { |
2e0fef85 | 3986 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 3987 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 3988 | int sentadisc = 0; |
dea3101e | 3989 | |
685f0bf7 | 3990 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ |
2e0fef85 | 3991 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 JS |
3992 | if (!NLP_CHK_NODE_ACT(ndlp)) |
3993 | continue; | |
685f0bf7 JS |
3994 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
3995 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
3996 | (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) { | |
2e0fef85 | 3997 | spin_lock_irq(shost->host_lock); |
685f0bf7 | 3998 | ndlp->nlp_flag &= ~NLP_NPR_ADISC; |
2e0fef85 | 3999 | spin_unlock_irq(shost->host_lock); |
685f0bf7 | 4000 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
4001 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
4002 | lpfc_issue_els_adisc(vport, ndlp, 0); | |
685f0bf7 | 4003 | sentadisc++; |
2e0fef85 JS |
4004 | vport->num_disc_nodes++; |
4005 | if (vport->num_disc_nodes >= | |
3de2a653 | 4006 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
4007 | spin_lock_irq(shost->host_lock); |
4008 | vport->fc_flag |= FC_NLP_MORE; | |
4009 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 4010 | break; |
dea3101e JB |
4011 | } |
4012 | } | |
4013 | } | |
4014 | if (sentadisc == 0) { | |
2e0fef85 JS |
4015 | spin_lock_irq(shost->host_lock); |
4016 | vport->fc_flag &= ~FC_NLP_MORE; | |
4017 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4018 | } |
2fe165b6 | 4019 | return sentadisc; |
dea3101e JB |
4020 | } |
4021 | ||
e59058c4 | 4022 | /** |
3621a710 | 4023 | * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc |
e59058c4 JS |
4024 | * @vport: pointer to a host virtual N_Port data structure. |
4025 | * | |
4026 | * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports | |
4027 | * which are in node port recovery state, with a @vport. Each time an ELS | |
4028 | * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine, | |
4029 | * the per @vport number of discover count (num_disc_nodes) shall be | |
4030 | * incremented. If the num_disc_nodes reaches a pre-configured threshold | |
4031 | * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE | |
4032 | * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for | |
4033 | * later pick up. On the other hand, after walking through all the ndlps with | |
4034 | * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag | |
4035 | * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC | |
4036 | * PLOGI need to be sent. | |
4037 | * | |
4038 | * Return code | |
4039 | * The number of N_Ports with plogi issued. | |
4040 | **/ | |
dea3101e | 4041 | int |
2e0fef85 | 4042 | lpfc_els_disc_plogi(struct lpfc_vport *vport) |
dea3101e | 4043 | { |
2e0fef85 | 4044 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 4045 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 4046 | int sentplogi = 0; |
dea3101e | 4047 | |
2e0fef85 JS |
4048 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ |
4049 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
4050 | if (!NLP_CHK_NODE_ACT(ndlp)) |
4051 | continue; | |
685f0bf7 JS |
4052 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
4053 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
4054 | (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 && | |
4055 | (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) { | |
4056 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
2e0fef85 JS |
4057 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
4058 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); | |
685f0bf7 | 4059 | sentplogi++; |
2e0fef85 JS |
4060 | vport->num_disc_nodes++; |
4061 | if (vport->num_disc_nodes >= | |
3de2a653 | 4062 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
4063 | spin_lock_irq(shost->host_lock); |
4064 | vport->fc_flag |= FC_NLP_MORE; | |
4065 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 4066 | break; |
dea3101e JB |
4067 | } |
4068 | } | |
4069 | } | |
87af33fe JS |
4070 | if (sentplogi) { |
4071 | lpfc_set_disctmo(vport); | |
4072 | } | |
4073 | else { | |
2e0fef85 JS |
4074 | spin_lock_irq(shost->host_lock); |
4075 | vport->fc_flag &= ~FC_NLP_MORE; | |
4076 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4077 | } |
2fe165b6 | 4078 | return sentplogi; |
dea3101e JB |
4079 | } |
4080 | ||
e59058c4 | 4081 | /** |
3621a710 | 4082 | * lpfc_els_flush_rscn - Clean up any rscn activities with a vport |
e59058c4 JS |
4083 | * @vport: pointer to a host virtual N_Port data structure. |
4084 | * | |
4085 | * This routine cleans up any Registration State Change Notification | |
4086 | * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the | |
4087 | * @vport together with the host_lock is used to prevent multiple thread | |
4088 | * trying to access the RSCN array on a same @vport at the same time. | |
4089 | **/ | |
92d7f7b0 | 4090 | void |
2e0fef85 | 4091 | lpfc_els_flush_rscn(struct lpfc_vport *vport) |
dea3101e | 4092 | { |
2e0fef85 JS |
4093 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4094 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
4095 | int i; |
4096 | ||
7f5f3d0d JS |
4097 | spin_lock_irq(shost->host_lock); |
4098 | if (vport->fc_rscn_flush) { | |
4099 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
4100 | spin_unlock_irq(shost->host_lock); | |
4101 | return; | |
4102 | } | |
4103 | /* Indicate we are walking lpfc_els_flush_rscn on this vport */ | |
4104 | vport->fc_rscn_flush = 1; | |
4105 | spin_unlock_irq(shost->host_lock); | |
4106 | ||
2e0fef85 | 4107 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 | 4108 | lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]); |
2e0fef85 | 4109 | vport->fc_rscn_id_list[i] = NULL; |
dea3101e | 4110 | } |
2e0fef85 JS |
4111 | spin_lock_irq(shost->host_lock); |
4112 | vport->fc_rscn_id_cnt = 0; | |
4113 | vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY); | |
4114 | spin_unlock_irq(shost->host_lock); | |
4115 | lpfc_can_disctmo(vport); | |
7f5f3d0d JS |
4116 | /* Indicate we are done walking this fc_rscn_id_list */ |
4117 | vport->fc_rscn_flush = 0; | |
dea3101e JB |
4118 | } |
4119 | ||
e59058c4 | 4120 | /** |
3621a710 | 4121 | * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did |
e59058c4 JS |
4122 | * @vport: pointer to a host virtual N_Port data structure. |
4123 | * @did: remote destination port identifier. | |
4124 | * | |
4125 | * This routine checks whether there is any pending Registration State | |
4126 | * Configuration Notification (RSCN) to a @did on @vport. | |
4127 | * | |
4128 | * Return code | |
4129 | * None zero - The @did matched with a pending rscn | |
4130 | * 0 - not able to match @did with a pending rscn | |
4131 | **/ | |
dea3101e | 4132 | int |
2e0fef85 | 4133 | lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) |
dea3101e JB |
4134 | { |
4135 | D_ID ns_did; | |
4136 | D_ID rscn_did; | |
dea3101e | 4137 | uint32_t *lp; |
92d7f7b0 | 4138 | uint32_t payload_len, i; |
7f5f3d0d | 4139 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e JB |
4140 | |
4141 | ns_did.un.word = did; | |
dea3101e JB |
4142 | |
4143 | /* Never match fabric nodes for RSCNs */ | |
4144 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
2e0fef85 | 4145 | return 0; |
dea3101e JB |
4146 | |
4147 | /* If we are doing a FULL RSCN rediscovery, match everything */ | |
2e0fef85 | 4148 | if (vport->fc_flag & FC_RSCN_DISCOVERY) |
c9f8735b | 4149 | return did; |
dea3101e | 4150 | |
7f5f3d0d JS |
4151 | spin_lock_irq(shost->host_lock); |
4152 | if (vport->fc_rscn_flush) { | |
4153 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
4154 | spin_unlock_irq(shost->host_lock); | |
4155 | return 0; | |
4156 | } | |
4157 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
4158 | vport->fc_rscn_flush = 1; | |
4159 | spin_unlock_irq(shost->host_lock); | |
2e0fef85 | 4160 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 JS |
4161 | lp = vport->fc_rscn_id_list[i]->virt; |
4162 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); | |
4163 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 4164 | while (payload_len) { |
92d7f7b0 JS |
4165 | rscn_did.un.word = be32_to_cpu(*lp++); |
4166 | payload_len -= sizeof(uint32_t); | |
eaf15d5b JS |
4167 | switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) { |
4168 | case RSCN_ADDRESS_FORMAT_PORT: | |
6fb120a7 JS |
4169 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
4170 | && (ns_did.un.b.area == rscn_did.un.b.area) | |
4171 | && (ns_did.un.b.id == rscn_did.un.b.id)) | |
7f5f3d0d | 4172 | goto return_did_out; |
dea3101e | 4173 | break; |
eaf15d5b | 4174 | case RSCN_ADDRESS_FORMAT_AREA: |
dea3101e JB |
4175 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
4176 | && (ns_did.un.b.area == rscn_did.un.b.area)) | |
7f5f3d0d | 4177 | goto return_did_out; |
dea3101e | 4178 | break; |
eaf15d5b | 4179 | case RSCN_ADDRESS_FORMAT_DOMAIN: |
dea3101e | 4180 | if (ns_did.un.b.domain == rscn_did.un.b.domain) |
7f5f3d0d | 4181 | goto return_did_out; |
dea3101e | 4182 | break; |
eaf15d5b | 4183 | case RSCN_ADDRESS_FORMAT_FABRIC: |
7f5f3d0d | 4184 | goto return_did_out; |
dea3101e JB |
4185 | } |
4186 | } | |
92d7f7b0 | 4187 | } |
7f5f3d0d JS |
4188 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ |
4189 | vport->fc_rscn_flush = 0; | |
92d7f7b0 | 4190 | return 0; |
7f5f3d0d JS |
4191 | return_did_out: |
4192 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ | |
4193 | vport->fc_rscn_flush = 0; | |
4194 | return did; | |
dea3101e JB |
4195 | } |
4196 | ||
e59058c4 | 4197 | /** |
3621a710 | 4198 | * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn |
e59058c4 JS |
4199 | * @vport: pointer to a host virtual N_Port data structure. |
4200 | * | |
4201 | * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the | |
4202 | * state machine for a @vport's nodes that are with pending RSCN (Registration | |
4203 | * State Change Notification). | |
4204 | * | |
4205 | * Return code | |
4206 | * 0 - Successful (currently alway return 0) | |
4207 | **/ | |
dea3101e | 4208 | static int |
2e0fef85 | 4209 | lpfc_rscn_recovery_check(struct lpfc_vport *vport) |
dea3101e | 4210 | { |
685f0bf7 | 4211 | struct lpfc_nodelist *ndlp = NULL; |
dea3101e | 4212 | |
0d2b6b83 | 4213 | /* Move all affected nodes by pending RSCNs to NPR state. */ |
2e0fef85 | 4214 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 | 4215 | if (!NLP_CHK_NODE_ACT(ndlp) || |
0d2b6b83 JS |
4216 | (ndlp->nlp_state == NLP_STE_UNUSED_NODE) || |
4217 | !lpfc_rscn_payload_check(vport, ndlp->nlp_DID)) | |
685f0bf7 | 4218 | continue; |
2e0fef85 | 4219 | lpfc_disc_state_machine(vport, ndlp, NULL, |
0d2b6b83 JS |
4220 | NLP_EVT_DEVICE_RECOVERY); |
4221 | lpfc_cancel_retry_delay_tmo(vport, ndlp); | |
dea3101e | 4222 | } |
c9f8735b | 4223 | return 0; |
dea3101e JB |
4224 | } |
4225 | ||
ddcc50f0 | 4226 | /** |
3621a710 | 4227 | * lpfc_send_rscn_event - Send an RSCN event to management application |
ddcc50f0 JS |
4228 | * @vport: pointer to a host virtual N_Port data structure. |
4229 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4230 | * | |
4231 | * lpfc_send_rscn_event sends an RSCN netlink event to management | |
4232 | * applications. | |
4233 | */ | |
4234 | static void | |
4235 | lpfc_send_rscn_event(struct lpfc_vport *vport, | |
4236 | struct lpfc_iocbq *cmdiocb) | |
4237 | { | |
4238 | struct lpfc_dmabuf *pcmd; | |
4239 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
4240 | uint32_t *payload_ptr; | |
4241 | uint32_t payload_len; | |
4242 | struct lpfc_rscn_event_header *rscn_event_data; | |
4243 | ||
4244 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4245 | payload_ptr = (uint32_t *) pcmd->virt; | |
4246 | payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK); | |
4247 | ||
4248 | rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) + | |
4249 | payload_len, GFP_KERNEL); | |
4250 | if (!rscn_event_data) { | |
4251 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
4252 | "0147 Failed to allocate memory for RSCN event\n"); | |
4253 | return; | |
4254 | } | |
4255 | rscn_event_data->event_type = FC_REG_RSCN_EVENT; | |
4256 | rscn_event_data->payload_length = payload_len; | |
4257 | memcpy(rscn_event_data->rscn_payload, payload_ptr, | |
4258 | payload_len); | |
4259 | ||
4260 | fc_host_post_vendor_event(shost, | |
4261 | fc_get_event_number(), | |
4262 | sizeof(struct lpfc_els_event_header) + payload_len, | |
4263 | (char *)rscn_event_data, | |
4264 | LPFC_NL_VENDOR_ID); | |
4265 | ||
4266 | kfree(rscn_event_data); | |
4267 | } | |
4268 | ||
e59058c4 | 4269 | /** |
3621a710 | 4270 | * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb |
e59058c4 JS |
4271 | * @vport: pointer to a host virtual N_Port data structure. |
4272 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4273 | * @ndlp: pointer to a node-list data structure. | |
4274 | * | |
4275 | * This routine processes an unsolicited RSCN (Registration State Change | |
4276 | * Notification) IOCB. First, the payload of the unsolicited RSCN is walked | |
4277 | * to invoke fc_host_post_event() routine to the FC transport layer. If the | |
4278 | * discover state machine is about to begin discovery, it just accepts the | |
4279 | * RSCN and the discovery process will satisfy the RSCN. If this RSCN only | |
4280 | * contains N_Port IDs for other vports on this HBA, it just accepts the | |
4281 | * RSCN and ignore processing it. If the state machine is in the recovery | |
4282 | * state, the fc_rscn_id_list of this @vport is walked and the | |
4283 | * lpfc_rscn_recovery_check() routine is invoked to send recovery event for | |
4284 | * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn() | |
4285 | * routine is invoked to handle the RSCN event. | |
4286 | * | |
4287 | * Return code | |
4288 | * 0 - Just sent the acc response | |
4289 | * 1 - Sent the acc response and waited for name server completion | |
4290 | **/ | |
dea3101e | 4291 | static int |
2e0fef85 | 4292 | lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 4293 | struct lpfc_nodelist *ndlp) |
dea3101e | 4294 | { |
2e0fef85 JS |
4295 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4296 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 4297 | struct lpfc_dmabuf *pcmd; |
92d7f7b0 | 4298 | uint32_t *lp, *datap; |
dea3101e | 4299 | IOCB_t *icmd; |
92d7f7b0 | 4300 | uint32_t payload_len, length, nportid, *cmd; |
7f5f3d0d | 4301 | int rscn_cnt; |
92d7f7b0 | 4302 | int rscn_id = 0, hba_id = 0; |
d2873e4c | 4303 | int i; |
dea3101e JB |
4304 | |
4305 | icmd = &cmdiocb->iocb; | |
4306 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4307 | lp = (uint32_t *) pcmd->virt; | |
4308 | ||
92d7f7b0 JS |
4309 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); |
4310 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 4311 | /* RSCN received */ |
e8b62011 JS |
4312 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4313 | "0214 RSCN received Data: x%x x%x x%x x%x\n", | |
7f5f3d0d JS |
4314 | vport->fc_flag, payload_len, *lp, |
4315 | vport->fc_rscn_id_cnt); | |
ddcc50f0 JS |
4316 | |
4317 | /* Send an RSCN event to the management application */ | |
4318 | lpfc_send_rscn_event(vport, cmdiocb); | |
4319 | ||
d2873e4c | 4320 | for (i = 0; i < payload_len/sizeof(uint32_t); i++) |
2e0fef85 | 4321 | fc_host_post_event(shost, fc_get_event_number(), |
d2873e4c JS |
4322 | FCH_EVT_RSCN, lp[i]); |
4323 | ||
dea3101e JB |
4324 | /* If we are about to begin discovery, just ACC the RSCN. |
4325 | * Discovery processing will satisfy it. | |
4326 | */ | |
2e0fef85 | 4327 | if (vport->port_state <= LPFC_NS_QRY) { |
858c9f6c JS |
4328 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4329 | "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x", | |
4330 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4331 | ||
51ef4c26 | 4332 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
c9f8735b | 4333 | return 0; |
dea3101e JB |
4334 | } |
4335 | ||
92d7f7b0 JS |
4336 | /* If this RSCN just contains NPortIDs for other vports on this HBA, |
4337 | * just ACC and ignore it. | |
4338 | */ | |
4339 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
3de2a653 | 4340 | !(vport->cfg_peer_port_login)) { |
92d7f7b0 JS |
4341 | i = payload_len; |
4342 | datap = lp; | |
4343 | while (i > 0) { | |
4344 | nportid = *datap++; | |
4345 | nportid = ((be32_to_cpu(nportid)) & Mask_DID); | |
4346 | i -= sizeof(uint32_t); | |
4347 | rscn_id++; | |
549e55cd JS |
4348 | if (lpfc_find_vport_by_did(phba, nportid)) |
4349 | hba_id++; | |
92d7f7b0 JS |
4350 | } |
4351 | if (rscn_id == hba_id) { | |
4352 | /* ALL NPortIDs in RSCN are on HBA */ | |
e8b62011 | 4353 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
d7c255b2 | 4354 | "0219 Ignore RSCN " |
e8b62011 JS |
4355 | "Data: x%x x%x x%x x%x\n", |
4356 | vport->fc_flag, payload_len, | |
7f5f3d0d | 4357 | *lp, vport->fc_rscn_id_cnt); |
858c9f6c JS |
4358 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4359 | "RCV RSCN vport: did:x%x/ste:x%x flg:x%x", | |
4360 | ndlp->nlp_DID, vport->port_state, | |
4361 | ndlp->nlp_flag); | |
4362 | ||
92d7f7b0 | 4363 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, |
51ef4c26 | 4364 | ndlp, NULL); |
92d7f7b0 JS |
4365 | return 0; |
4366 | } | |
4367 | } | |
4368 | ||
7f5f3d0d JS |
4369 | spin_lock_irq(shost->host_lock); |
4370 | if (vport->fc_rscn_flush) { | |
4371 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
7f5f3d0d | 4372 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
97957244 | 4373 | spin_unlock_irq(shost->host_lock); |
58da1ffb JS |
4374 | /* Send back ACC */ |
4375 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
7f5f3d0d JS |
4376 | return 0; |
4377 | } | |
4378 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
4379 | vport->fc_rscn_flush = 1; | |
4380 | spin_unlock_irq(shost->host_lock); | |
af901ca1 | 4381 | /* Get the array count after successfully have the token */ |
7f5f3d0d | 4382 | rscn_cnt = vport->fc_rscn_id_cnt; |
dea3101e JB |
4383 | /* If we are already processing an RSCN, save the received |
4384 | * RSCN payload buffer, cmdiocb->context2 to process later. | |
4385 | */ | |
2e0fef85 | 4386 | if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) { |
858c9f6c JS |
4387 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4388 | "RCV RSCN defer: did:x%x/ste:x%x flg:x%x", | |
4389 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4390 | ||
09372820 | 4391 | spin_lock_irq(shost->host_lock); |
92d7f7b0 JS |
4392 | vport->fc_flag |= FC_RSCN_DEFERRED; |
4393 | if ((rscn_cnt < FC_MAX_HOLD_RSCN) && | |
2e0fef85 | 4394 | !(vport->fc_flag & FC_RSCN_DISCOVERY)) { |
2e0fef85 JS |
4395 | vport->fc_flag |= FC_RSCN_MODE; |
4396 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
4397 | if (rscn_cnt) { |
4398 | cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt; | |
4399 | length = be32_to_cpu(*cmd & ~ELS_CMD_MASK); | |
4400 | } | |
4401 | if ((rscn_cnt) && | |
4402 | (payload_len + length <= LPFC_BPL_SIZE)) { | |
4403 | *cmd &= ELS_CMD_MASK; | |
7f5f3d0d | 4404 | *cmd |= cpu_to_be32(payload_len + length); |
92d7f7b0 JS |
4405 | memcpy(((uint8_t *)cmd) + length, lp, |
4406 | payload_len); | |
4407 | } else { | |
4408 | vport->fc_rscn_id_list[rscn_cnt] = pcmd; | |
4409 | vport->fc_rscn_id_cnt++; | |
4410 | /* If we zero, cmdiocb->context2, the calling | |
4411 | * routine will not try to free it. | |
4412 | */ | |
4413 | cmdiocb->context2 = NULL; | |
4414 | } | |
dea3101e | 4415 | /* Deferred RSCN */ |
e8b62011 JS |
4416 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4417 | "0235 Deferred RSCN " | |
4418 | "Data: x%x x%x x%x\n", | |
4419 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4420 | vport->port_state); | |
dea3101e | 4421 | } else { |
2e0fef85 JS |
4422 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
4423 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4424 | /* ReDiscovery RSCN */ |
e8b62011 JS |
4425 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4426 | "0234 ReDiscovery RSCN " | |
4427 | "Data: x%x x%x x%x\n", | |
4428 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4429 | vport->port_state); | |
dea3101e | 4430 | } |
7f5f3d0d JS |
4431 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4432 | vport->fc_rscn_flush = 0; | |
dea3101e | 4433 | /* Send back ACC */ |
51ef4c26 | 4434 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4435 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4436 | lpfc_rscn_recovery_check(vport); |
09372820 | 4437 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 4438 | vport->fc_flag &= ~FC_RSCN_DEFERRED; |
09372820 | 4439 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 4440 | return 0; |
dea3101e | 4441 | } |
858c9f6c JS |
4442 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4443 | "RCV RSCN: did:x%x/ste:x%x flg:x%x", | |
4444 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4445 | ||
2e0fef85 JS |
4446 | spin_lock_irq(shost->host_lock); |
4447 | vport->fc_flag |= FC_RSCN_MODE; | |
4448 | spin_unlock_irq(shost->host_lock); | |
4449 | vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd; | |
7f5f3d0d JS |
4450 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4451 | vport->fc_rscn_flush = 0; | |
dea3101e JB |
4452 | /* |
4453 | * If we zero, cmdiocb->context2, the calling routine will | |
4454 | * not try to free it. | |
4455 | */ | |
4456 | cmdiocb->context2 = NULL; | |
2e0fef85 | 4457 | lpfc_set_disctmo(vport); |
dea3101e | 4458 | /* Send back ACC */ |
51ef4c26 | 4459 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4460 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4461 | lpfc_rscn_recovery_check(vport); |
2e0fef85 | 4462 | return lpfc_els_handle_rscn(vport); |
dea3101e JB |
4463 | } |
4464 | ||
e59058c4 | 4465 | /** |
3621a710 | 4466 | * lpfc_els_handle_rscn - Handle rscn for a vport |
e59058c4 JS |
4467 | * @vport: pointer to a host virtual N_Port data structure. |
4468 | * | |
4469 | * This routine handles the Registration State Configuration Notification | |
4470 | * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall | |
4471 | * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise, | |
4472 | * if the ndlp to NameServer exists, a Common Transport (CT) command to the | |
4473 | * NameServer shall be issued. If CT command to the NameServer fails to be | |
4474 | * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any | |
4475 | * RSCN activities with the @vport. | |
4476 | * | |
4477 | * Return code | |
4478 | * 0 - Cleaned up rscn on the @vport | |
4479 | * 1 - Wait for plogi to name server before proceed | |
4480 | **/ | |
dea3101e | 4481 | int |
2e0fef85 | 4482 | lpfc_els_handle_rscn(struct lpfc_vport *vport) |
dea3101e JB |
4483 | { |
4484 | struct lpfc_nodelist *ndlp; | |
2e0fef85 | 4485 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4486 | |
92d7f7b0 JS |
4487 | /* Ignore RSCN if the port is being torn down. */ |
4488 | if (vport->load_flag & FC_UNLOADING) { | |
4489 | lpfc_els_flush_rscn(vport); | |
4490 | return 0; | |
4491 | } | |
4492 | ||
dea3101e | 4493 | /* Start timer for RSCN processing */ |
2e0fef85 | 4494 | lpfc_set_disctmo(vport); |
dea3101e JB |
4495 | |
4496 | /* RSCN processed */ | |
e8b62011 JS |
4497 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4498 | "0215 RSCN processed Data: x%x x%x x%x x%x\n", | |
4499 | vport->fc_flag, 0, vport->fc_rscn_id_cnt, | |
4500 | vport->port_state); | |
dea3101e JB |
4501 | |
4502 | /* To process RSCN, first compare RSCN data with NameServer */ | |
2e0fef85 | 4503 | vport->fc_ns_retry = 0; |
0ff10d46 JS |
4504 | vport->num_disc_nodes = 0; |
4505 | ||
2e0fef85 | 4506 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 JS |
4507 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
4508 | && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { | |
dea3101e | 4509 | /* Good ndlp, issue CT Request to NameServer */ |
92d7f7b0 | 4510 | if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0) |
dea3101e JB |
4511 | /* Wait for NameServer query cmpl before we can |
4512 | continue */ | |
c9f8735b | 4513 | return 1; |
dea3101e JB |
4514 | } else { |
4515 | /* If login to NameServer does not exist, issue one */ | |
4516 | /* Good status, issue PLOGI to NameServer */ | |
2e0fef85 | 4517 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 | 4518 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
dea3101e JB |
4519 | /* Wait for NameServer login cmpl before we can |
4520 | continue */ | |
c9f8735b | 4521 | return 1; |
2e0fef85 | 4522 | |
e47c9093 JS |
4523 | if (ndlp) { |
4524 | ndlp = lpfc_enable_node(vport, ndlp, | |
4525 | NLP_STE_PLOGI_ISSUE); | |
4526 | if (!ndlp) { | |
4527 | lpfc_els_flush_rscn(vport); | |
4528 | return 0; | |
4529 | } | |
4530 | ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; | |
dea3101e | 4531 | } else { |
e47c9093 JS |
4532 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
4533 | if (!ndlp) { | |
4534 | lpfc_els_flush_rscn(vport); | |
4535 | return 0; | |
4536 | } | |
2e0fef85 | 4537 | lpfc_nlp_init(vport, ndlp, NameServer_DID); |
5024ab17 | 4538 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 4539 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
dea3101e | 4540 | } |
e47c9093 JS |
4541 | ndlp->nlp_type |= NLP_FABRIC; |
4542 | lpfc_issue_els_plogi(vport, NameServer_DID, 0); | |
4543 | /* Wait for NameServer login cmpl before we can | |
4544 | * continue | |
4545 | */ | |
4546 | return 1; | |
dea3101e JB |
4547 | } |
4548 | ||
2e0fef85 | 4549 | lpfc_els_flush_rscn(vport); |
c9f8735b | 4550 | return 0; |
dea3101e JB |
4551 | } |
4552 | ||
e59058c4 | 4553 | /** |
3621a710 | 4554 | * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb |
e59058c4 JS |
4555 | * @vport: pointer to a host virtual N_Port data structure. |
4556 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4557 | * @ndlp: pointer to a node-list data structure. | |
4558 | * | |
4559 | * This routine processes Fabric Login (FLOGI) IOCB received as an ELS | |
4560 | * unsolicited event. An unsolicited FLOGI can be received in a point-to- | |
4561 | * point topology. As an unsolicited FLOGI should not be received in a loop | |
4562 | * mode, any unsolicited FLOGI received in loop mode shall be ignored. The | |
4563 | * lpfc_check_sparm() routine is invoked to check the parameters in the | |
4564 | * unsolicited FLOGI. If parameters validation failed, the routine | |
4565 | * lpfc_els_rsp_reject() shall be called with reject reason code set to | |
4566 | * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the | |
4567 | * FLOGI shall be compared with the Port WWN of the @vport to determine who | |
4568 | * will initiate PLOGI. The higher lexicographical value party shall has | |
4569 | * higher priority (as the winning port) and will initiate PLOGI and | |
4570 | * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result | |
4571 | * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI | |
4572 | * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI. | |
4573 | * | |
4574 | * Return code | |
4575 | * 0 - Successfully processed the unsolicited flogi | |
4576 | * 1 - Failed to process the unsolicited flogi | |
4577 | **/ | |
dea3101e | 4578 | static int |
2e0fef85 | 4579 | lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 4580 | struct lpfc_nodelist *ndlp) |
dea3101e | 4581 | { |
2e0fef85 JS |
4582 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4583 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
4584 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
4585 | uint32_t *lp = (uint32_t *) pcmd->virt; | |
4586 | IOCB_t *icmd = &cmdiocb->iocb; | |
4587 | struct serv_parm *sp; | |
4588 | LPFC_MBOXQ_t *mbox; | |
4589 | struct ls_rjt stat; | |
4590 | uint32_t cmd, did; | |
4591 | int rc; | |
4592 | ||
4593 | cmd = *lp++; | |
4594 | sp = (struct serv_parm *) lp; | |
4595 | ||
4596 | /* FLOGI received */ | |
4597 | ||
2e0fef85 | 4598 | lpfc_set_disctmo(vport); |
dea3101e JB |
4599 | |
4600 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
4601 | /* We should never receive a FLOGI in loop mode, ignore it */ | |
4602 | did = icmd->un.elsreq64.remoteID; | |
4603 | ||
4604 | /* An FLOGI ELS command <elsCmd> was received from DID <did> in | |
4605 | Loop Mode */ | |
e8b62011 JS |
4606 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
4607 | "0113 An FLOGI ELS command x%x was " | |
4608 | "received from DID x%x in Loop Mode\n", | |
4609 | cmd, did); | |
c9f8735b | 4610 | return 1; |
dea3101e JB |
4611 | } |
4612 | ||
4613 | did = Fabric_DID; | |
4614 | ||
341af102 | 4615 | if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1))) { |
dea3101e JB |
4616 | /* For a FLOGI we accept, then if our portname is greater |
4617 | * then the remote portname we initiate Nport login. | |
4618 | */ | |
4619 | ||
2e0fef85 | 4620 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 4621 | sizeof(struct lpfc_name)); |
dea3101e JB |
4622 | |
4623 | if (!rc) { | |
2e0fef85 JS |
4624 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
4625 | if (!mbox) | |
c9f8735b | 4626 | return 1; |
2e0fef85 | 4627 | |
dea3101e JB |
4628 | lpfc_linkdown(phba); |
4629 | lpfc_init_link(phba, mbox, | |
4630 | phba->cfg_topology, | |
4631 | phba->cfg_link_speed); | |
04c68496 | 4632 | mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; |
dea3101e | 4633 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
ed957684 | 4634 | mbox->vport = vport; |
0b727fea | 4635 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
5b8bd0c9 | 4636 | lpfc_set_loopback_flag(phba); |
dea3101e | 4637 | if (rc == MBX_NOT_FINISHED) { |
329f9bc7 | 4638 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 4639 | } |
c9f8735b | 4640 | return 1; |
2fe165b6 | 4641 | } else if (rc > 0) { /* greater than */ |
2e0fef85 JS |
4642 | spin_lock_irq(shost->host_lock); |
4643 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
4644 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4645 | } |
2e0fef85 JS |
4646 | spin_lock_irq(shost->host_lock); |
4647 | vport->fc_flag |= FC_PT2PT; | |
4648 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
4649 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
4650 | } else { |
4651 | /* Reject this request because invalid parameters */ | |
4652 | stat.un.b.lsRjtRsvd0 = 0; | |
4653 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4654 | stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; | |
4655 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4656 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4657 | NULL); | |
c9f8735b | 4658 | return 1; |
dea3101e JB |
4659 | } |
4660 | ||
4661 | /* Send back ACC */ | |
51ef4c26 | 4662 | lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL); |
dea3101e | 4663 | |
c9f8735b | 4664 | return 0; |
dea3101e JB |
4665 | } |
4666 | ||
e59058c4 | 4667 | /** |
3621a710 | 4668 | * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb |
e59058c4 JS |
4669 | * @vport: pointer to a host virtual N_Port data structure. |
4670 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4671 | * @ndlp: pointer to a node-list data structure. | |
4672 | * | |
4673 | * This routine processes Request Node Identification Data (RNID) IOCB | |
4674 | * received as an ELS unsolicited event. Only when the RNID specified format | |
4675 | * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data) | |
4676 | * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to | |
4677 | * Accept (ACC) the RNID ELS command. All the other RNID formats are | |
4678 | * rejected by invoking the lpfc_els_rsp_reject() routine. | |
4679 | * | |
4680 | * Return code | |
4681 | * 0 - Successfully processed rnid iocb (currently always return 0) | |
4682 | **/ | |
dea3101e | 4683 | static int |
2e0fef85 JS |
4684 | lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4685 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
4686 | { |
4687 | struct lpfc_dmabuf *pcmd; | |
4688 | uint32_t *lp; | |
4689 | IOCB_t *icmd; | |
4690 | RNID *rn; | |
4691 | struct ls_rjt stat; | |
4692 | uint32_t cmd, did; | |
4693 | ||
4694 | icmd = &cmdiocb->iocb; | |
4695 | did = icmd->un.elsreq64.remoteID; | |
4696 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4697 | lp = (uint32_t *) pcmd->virt; | |
4698 | ||
4699 | cmd = *lp++; | |
4700 | rn = (RNID *) lp; | |
4701 | ||
4702 | /* RNID received */ | |
4703 | ||
4704 | switch (rn->Format) { | |
4705 | case 0: | |
4706 | case RNID_TOPOLOGY_DISC: | |
4707 | /* Send back ACC */ | |
2e0fef85 | 4708 | lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp); |
dea3101e JB |
4709 | break; |
4710 | default: | |
4711 | /* Reject this request because format not supported */ | |
4712 | stat.un.b.lsRjtRsvd0 = 0; | |
4713 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4714 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4715 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4716 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4717 | NULL); | |
dea3101e | 4718 | } |
c9f8735b | 4719 | return 0; |
dea3101e JB |
4720 | } |
4721 | ||
12265f68 JS |
4722 | /** |
4723 | * lpfc_els_rcv_echo - Process an unsolicited echo iocb | |
4724 | * @vport: pointer to a host virtual N_Port data structure. | |
4725 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4726 | * @ndlp: pointer to a node-list data structure. | |
4727 | * | |
4728 | * Return code | |
4729 | * 0 - Successfully processed echo iocb (currently always return 0) | |
4730 | **/ | |
4731 | static int | |
4732 | lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
4733 | struct lpfc_nodelist *ndlp) | |
4734 | { | |
4735 | uint8_t *pcmd; | |
4736 | ||
4737 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); | |
4738 | ||
4739 | /* skip over first word of echo command to find echo data */ | |
4740 | pcmd += sizeof(uint32_t); | |
4741 | ||
4742 | lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp); | |
4743 | return 0; | |
4744 | } | |
4745 | ||
e59058c4 | 4746 | /** |
3621a710 | 4747 | * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb |
e59058c4 JS |
4748 | * @vport: pointer to a host virtual N_Port data structure. |
4749 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4750 | * @ndlp: pointer to a node-list data structure. | |
4751 | * | |
4752 | * This routine processes a Link Incident Report Registration(LIRR) IOCB | |
4753 | * received as an ELS unsolicited event. Currently, this function just invokes | |
4754 | * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally. | |
4755 | * | |
4756 | * Return code | |
4757 | * 0 - Successfully processed lirr iocb (currently always return 0) | |
4758 | **/ | |
dea3101e | 4759 | static int |
2e0fef85 JS |
4760 | lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4761 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
4762 | { |
4763 | struct ls_rjt stat; | |
4764 | ||
4765 | /* For now, unconditionally reject this command */ | |
4766 | stat.un.b.lsRjtRsvd0 = 0; | |
4767 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4768 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4769 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 4770 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
4771 | return 0; |
4772 | } | |
4773 | ||
5ffc266e JS |
4774 | /** |
4775 | * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb | |
4776 | * @vport: pointer to a host virtual N_Port data structure. | |
4777 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4778 | * @ndlp: pointer to a node-list data structure. | |
4779 | * | |
4780 | * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB | |
4781 | * received as an ELS unsolicited event. A request to RRQ shall only | |
4782 | * be accepted if the Originator Nx_Port N_Port_ID or the Responder | |
4783 | * Nx_Port N_Port_ID of the target Exchange is the same as the | |
4784 | * N_Port_ID of the Nx_Port that makes the request. If the RRQ is | |
4785 | * not accepted, an LS_RJT with reason code "Unable to perform | |
4786 | * command request" and reason code explanation "Invalid Originator | |
4787 | * S_ID" shall be returned. For now, we just unconditionally accept | |
4788 | * RRQ from the target. | |
4789 | **/ | |
4790 | static void | |
4791 | lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
4792 | struct lpfc_nodelist *ndlp) | |
4793 | { | |
4794 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
4795 | } | |
4796 | ||
12265f68 JS |
4797 | /** |
4798 | * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd | |
4799 | * @phba: pointer to lpfc hba data structure. | |
4800 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
4801 | * | |
4802 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
4803 | * mailbox command. This callback function is to actually send the Accept | |
4804 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
4805 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
4806 | * mailbox command, constructs the RPS response with the link statistics | |
4807 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
4808 | * response to the RPS. | |
4809 | * | |
4810 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4811 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4812 | * will be stored into the context1 field of the IOCB for the completion | |
4813 | * callback function to the RPS Accept Response ELS IOCB command. | |
4814 | * | |
4815 | **/ | |
4816 | static void | |
4817 | lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
4818 | { | |
4819 | MAILBOX_t *mb; | |
4820 | IOCB_t *icmd; | |
4821 | struct RLS_RSP *rls_rsp; | |
4822 | uint8_t *pcmd; | |
4823 | struct lpfc_iocbq *elsiocb; | |
4824 | struct lpfc_nodelist *ndlp; | |
4825 | uint16_t xri; | |
4826 | uint32_t cmdsize; | |
4827 | ||
4828 | mb = &pmb->u.mb; | |
4829 | ||
4830 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
4831 | xri = (uint16_t) ((unsigned long)(pmb->context1)); | |
4832 | pmb->context1 = NULL; | |
4833 | pmb->context2 = NULL; | |
4834 | ||
4835 | if (mb->mbxStatus) { | |
4836 | mempool_free(pmb, phba->mbox_mem_pool); | |
4837 | return; | |
4838 | } | |
4839 | ||
4840 | cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t); | |
4841 | mempool_free(pmb, phba->mbox_mem_pool); | |
4842 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, | |
4843 | lpfc_max_els_tries, ndlp, | |
4844 | ndlp->nlp_DID, ELS_CMD_ACC); | |
4845 | ||
4846 | /* Decrement the ndlp reference count from previous mbox command */ | |
4847 | lpfc_nlp_put(ndlp); | |
4848 | ||
4849 | if (!elsiocb) | |
4850 | return; | |
4851 | ||
4852 | icmd = &elsiocb->iocb; | |
4853 | icmd->ulpContext = xri; | |
4854 | ||
4855 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
4856 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
4857 | pcmd += sizeof(uint32_t); /* Skip past command */ | |
4858 | rls_rsp = (struct RLS_RSP *)pcmd; | |
4859 | ||
4860 | rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
4861 | rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
4862 | rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
4863 | rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
4864 | rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
4865 | rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
4866 | ||
4867 | /* Xmit ELS RLS ACC response tag <ulpIoTag> */ | |
4868 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, | |
4869 | "2874 Xmit ELS RLS ACC response tag x%x xri x%x, " | |
4870 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
4871 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
4872 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
4873 | ndlp->nlp_rpi); | |
4874 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
4875 | phba->fc_stat.elsXmitACC++; | |
4876 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) | |
4877 | lpfc_els_free_iocb(phba, elsiocb); | |
4878 | } | |
4879 | ||
e59058c4 | 4880 | /** |
3621a710 | 4881 | * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd |
e59058c4 JS |
4882 | * @phba: pointer to lpfc hba data structure. |
4883 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
4884 | * | |
4885 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
4886 | * mailbox command. This callback function is to actually send the Accept | |
4887 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
4888 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
4889 | * mailbox command, constructs the RPS response with the link statistics | |
4890 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
4891 | * response to the RPS. | |
4892 | * | |
4893 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4894 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4895 | * will be stored into the context1 field of the IOCB for the completion | |
4896 | * callback function to the RPS Accept Response ELS IOCB command. | |
4897 | * | |
4898 | **/ | |
082c0266 | 4899 | static void |
329f9bc7 | 4900 | lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
7bb3b137 | 4901 | { |
7bb3b137 JW |
4902 | MAILBOX_t *mb; |
4903 | IOCB_t *icmd; | |
4904 | RPS_RSP *rps_rsp; | |
4905 | uint8_t *pcmd; | |
4906 | struct lpfc_iocbq *elsiocb; | |
4907 | struct lpfc_nodelist *ndlp; | |
4908 | uint16_t xri, status; | |
4909 | uint32_t cmdsize; | |
4910 | ||
04c68496 | 4911 | mb = &pmb->u.mb; |
7bb3b137 JW |
4912 | |
4913 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
4914 | xri = (uint16_t) ((unsigned long)(pmb->context1)); | |
041976fb RD |
4915 | pmb->context1 = NULL; |
4916 | pmb->context2 = NULL; | |
7bb3b137 JW |
4917 | |
4918 | if (mb->mbxStatus) { | |
329f9bc7 | 4919 | mempool_free(pmb, phba->mbox_mem_pool); |
7bb3b137 JW |
4920 | return; |
4921 | } | |
4922 | ||
4923 | cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t); | |
329f9bc7 | 4924 | mempool_free(pmb, phba->mbox_mem_pool); |
2e0fef85 JS |
4925 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, |
4926 | lpfc_max_els_tries, ndlp, | |
4927 | ndlp->nlp_DID, ELS_CMD_ACC); | |
fa4066b6 JS |
4928 | |
4929 | /* Decrement the ndlp reference count from previous mbox command */ | |
329f9bc7 | 4930 | lpfc_nlp_put(ndlp); |
fa4066b6 | 4931 | |
c9f8735b | 4932 | if (!elsiocb) |
7bb3b137 | 4933 | return; |
7bb3b137 JW |
4934 | |
4935 | icmd = &elsiocb->iocb; | |
4936 | icmd->ulpContext = xri; | |
4937 | ||
4938 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
4939 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 4940 | pcmd += sizeof(uint32_t); /* Skip past command */ |
7bb3b137 JW |
4941 | rps_rsp = (RPS_RSP *)pcmd; |
4942 | ||
4943 | if (phba->fc_topology != TOPOLOGY_LOOP) | |
4944 | status = 0x10; | |
4945 | else | |
4946 | status = 0x8; | |
2e0fef85 | 4947 | if (phba->pport->fc_flag & FC_FABRIC) |
7bb3b137 JW |
4948 | status |= 0x4; |
4949 | ||
4950 | rps_rsp->rsvd1 = 0; | |
09372820 JS |
4951 | rps_rsp->portStatus = cpu_to_be16(status); |
4952 | rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
4953 | rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
4954 | rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
4955 | rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
4956 | rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
4957 | rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
7bb3b137 | 4958 | /* Xmit ELS RPS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4959 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, |
4960 | "0118 Xmit ELS RPS ACC response tag x%x xri x%x, " | |
4961 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
4962 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
4963 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
4964 | ndlp->nlp_rpi); | |
858c9f6c | 4965 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 4966 | phba->fc_stat.elsXmitACC++; |
3772a991 | 4967 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) |
7bb3b137 | 4968 | lpfc_els_free_iocb(phba, elsiocb); |
7bb3b137 JW |
4969 | return; |
4970 | } | |
4971 | ||
e59058c4 | 4972 | /** |
12265f68 JS |
4973 | * lpfc_els_rcv_rls - Process an unsolicited rls iocb |
4974 | * @vport: pointer to a host virtual N_Port data structure. | |
4975 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4976 | * @ndlp: pointer to a node-list data structure. | |
4977 | * | |
4978 | * This routine processes Read Port Status (RPL) IOCB received as an | |
4979 | * ELS unsolicited event. It first checks the remote port state. If the | |
4980 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
4981 | * state, it invokes the lpfc_els_rsl_reject() routine to send the reject | |
4982 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
4983 | * for reading the HBA link statistics. It is for the callback function, | |
4984 | * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
4985 | * to actually sending out RPL Accept (ACC) response. | |
4986 | * | |
4987 | * Return codes | |
4988 | * 0 - Successfully processed rls iocb (currently always return 0) | |
4989 | **/ | |
4990 | static int | |
4991 | lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
4992 | struct lpfc_nodelist *ndlp) | |
4993 | { | |
4994 | struct lpfc_hba *phba = vport->phba; | |
4995 | LPFC_MBOXQ_t *mbox; | |
4996 | struct lpfc_dmabuf *pcmd; | |
4997 | struct ls_rjt stat; | |
4998 | ||
4999 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && | |
5000 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) | |
5001 | /* reject the unsolicited RPS request and done with it */ | |
5002 | goto reject_out; | |
5003 | ||
5004 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5005 | ||
5006 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); | |
5007 | if (mbox) { | |
5008 | lpfc_read_lnk_stat(phba, mbox); | |
5009 | mbox->context1 = | |
5010 | (void *)((unsigned long) cmdiocb->iocb.ulpContext); | |
5011 | mbox->context2 = lpfc_nlp_get(ndlp); | |
5012 | mbox->vport = vport; | |
5013 | mbox->mbox_cmpl = lpfc_els_rsp_rls_acc; | |
5014 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) | |
5015 | != MBX_NOT_FINISHED) | |
5016 | /* Mbox completion will send ELS Response */ | |
5017 | return 0; | |
5018 | /* Decrement reference count used for the failed mbox | |
5019 | * command. | |
5020 | */ | |
5021 | lpfc_nlp_put(ndlp); | |
5022 | mempool_free(mbox, phba->mbox_mem_pool); | |
5023 | } | |
5024 | reject_out: | |
5025 | /* issue rejection response */ | |
5026 | stat.un.b.lsRjtRsvd0 = 0; | |
5027 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5028 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5029 | stat.un.b.vendorUnique = 0; | |
5030 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); | |
5031 | return 0; | |
5032 | } | |
5033 | ||
5034 | /** | |
5035 | * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb | |
5036 | * @vport: pointer to a host virtual N_Port data structure. | |
5037 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5038 | * @ndlp: pointer to a node-list data structure. | |
5039 | * | |
5040 | * This routine processes Read Timout Value (RTV) IOCB received as an | |
5041 | * ELS unsolicited event. It first checks the remote port state. If the | |
5042 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5043 | * state, it invokes the lpfc_els_rsl_reject() routine to send the reject | |
5044 | * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout | |
5045 | * Value (RTV) unsolicited IOCB event. | |
5046 | * | |
5047 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5048 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5049 | * will be stored into the context1 field of the IOCB for the completion | |
5050 | * callback function to the RPS Accept Response ELS IOCB command. | |
5051 | * | |
5052 | * Return codes | |
5053 | * 0 - Successfully processed rtv iocb (currently always return 0) | |
5054 | **/ | |
5055 | static int | |
5056 | lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5057 | struct lpfc_nodelist *ndlp) | |
5058 | { | |
5059 | struct lpfc_hba *phba = vport->phba; | |
5060 | struct ls_rjt stat; | |
5061 | struct RTV_RSP *rtv_rsp; | |
5062 | uint8_t *pcmd; | |
5063 | struct lpfc_iocbq *elsiocb; | |
5064 | uint32_t cmdsize; | |
5065 | ||
5066 | ||
5067 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && | |
5068 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) | |
5069 | /* reject the unsolicited RPS request and done with it */ | |
5070 | goto reject_out; | |
5071 | ||
5072 | cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t); | |
5073 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, | |
5074 | lpfc_max_els_tries, ndlp, | |
5075 | ndlp->nlp_DID, ELS_CMD_ACC); | |
5076 | ||
5077 | if (!elsiocb) | |
5078 | return 1; | |
5079 | ||
5080 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5081 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
5082 | pcmd += sizeof(uint32_t); /* Skip past command */ | |
5083 | ||
5084 | /* use the command's xri in the response */ | |
5085 | elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; | |
5086 | ||
5087 | rtv_rsp = (struct RTV_RSP *)pcmd; | |
5088 | ||
5089 | /* populate RTV payload */ | |
5090 | rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */ | |
5091 | rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov); | |
5092 | bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0); | |
5093 | bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */ | |
5094 | rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov); | |
5095 | ||
5096 | /* Xmit ELS RLS ACC response tag <ulpIoTag> */ | |
5097 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, | |
5098 | "2875 Xmit ELS RTV ACC response tag x%x xri x%x, " | |
5099 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, " | |
5100 | "Data: x%x x%x x%x\n", | |
5101 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5102 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5103 | ndlp->nlp_rpi, | |
5104 | rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov); | |
5105 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
5106 | phba->fc_stat.elsXmitACC++; | |
5107 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) | |
5108 | lpfc_els_free_iocb(phba, elsiocb); | |
5109 | return 0; | |
5110 | ||
5111 | reject_out: | |
5112 | /* issue rejection response */ | |
5113 | stat.un.b.lsRjtRsvd0 = 0; | |
5114 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5115 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5116 | stat.un.b.vendorUnique = 0; | |
5117 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); | |
5118 | return 0; | |
5119 | } | |
5120 | ||
5121 | /* lpfc_els_rcv_rps - Process an unsolicited rps iocb | |
e59058c4 JS |
5122 | * @vport: pointer to a host virtual N_Port data structure. |
5123 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5124 | * @ndlp: pointer to a node-list data structure. | |
5125 | * | |
5126 | * This routine processes Read Port Status (RPS) IOCB received as an | |
5127 | * ELS unsolicited event. It first checks the remote port state. If the | |
5128 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5129 | * state, it invokes the lpfc_els_rsp_reject() routine to send the reject | |
5130 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
5131 | * for reading the HBA link statistics. It is for the callback function, | |
5132 | * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
5133 | * to actually sending out RPS Accept (ACC) response. | |
5134 | * | |
5135 | * Return codes | |
5136 | * 0 - Successfully processed rps iocb (currently always return 0) | |
5137 | **/ | |
7bb3b137 | 5138 | static int |
2e0fef85 JS |
5139 | lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5140 | struct lpfc_nodelist *ndlp) | |
dea3101e | 5141 | { |
2e0fef85 | 5142 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 5143 | uint32_t *lp; |
7bb3b137 JW |
5144 | uint8_t flag; |
5145 | LPFC_MBOXQ_t *mbox; | |
5146 | struct lpfc_dmabuf *pcmd; | |
5147 | RPS *rps; | |
5148 | struct ls_rjt stat; | |
5149 | ||
2fe165b6 | 5150 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
90160e01 JS |
5151 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) |
5152 | /* reject the unsolicited RPS request and done with it */ | |
5153 | goto reject_out; | |
7bb3b137 JW |
5154 | |
5155 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5156 | lp = (uint32_t *) pcmd->virt; | |
5157 | flag = (be32_to_cpu(*lp++) & 0xf); | |
5158 | rps = (RPS *) lp; | |
5159 | ||
5160 | if ((flag == 0) || | |
5161 | ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) || | |
2e0fef85 | 5162 | ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname, |
92d7f7b0 | 5163 | sizeof(struct lpfc_name)) == 0))) { |
2e0fef85 | 5164 | |
92d7f7b0 JS |
5165 | printk("Fix me....\n"); |
5166 | dump_stack(); | |
2e0fef85 JS |
5167 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); |
5168 | if (mbox) { | |
7bb3b137 JW |
5169 | lpfc_read_lnk_stat(phba, mbox); |
5170 | mbox->context1 = | |
92d7f7b0 | 5171 | (void *)((unsigned long) cmdiocb->iocb.ulpContext); |
329f9bc7 | 5172 | mbox->context2 = lpfc_nlp_get(ndlp); |
92d7f7b0 | 5173 | mbox->vport = vport; |
7bb3b137 | 5174 | mbox->mbox_cmpl = lpfc_els_rsp_rps_acc; |
fa4066b6 | 5175 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
0b727fea | 5176 | != MBX_NOT_FINISHED) |
7bb3b137 JW |
5177 | /* Mbox completion will send ELS Response */ |
5178 | return 0; | |
fa4066b6 JS |
5179 | /* Decrement reference count used for the failed mbox |
5180 | * command. | |
5181 | */ | |
329f9bc7 | 5182 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
5183 | mempool_free(mbox, phba->mbox_mem_pool); |
5184 | } | |
5185 | } | |
90160e01 JS |
5186 | |
5187 | reject_out: | |
5188 | /* issue rejection response */ | |
7bb3b137 JW |
5189 | stat.un.b.lsRjtRsvd0 = 0; |
5190 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5191 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5192 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 5193 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
5194 | return 0; |
5195 | } | |
5196 | ||
e59058c4 | 5197 | /** |
3621a710 | 5198 | * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command |
e59058c4 JS |
5199 | * @vport: pointer to a host virtual N_Port data structure. |
5200 | * @cmdsize: size of the ELS command. | |
5201 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
5202 | * @ndlp: pointer to a node-list data structure. | |
5203 | * | |
5204 | * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command. | |
5205 | * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL. | |
5206 | * | |
5207 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5208 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5209 | * will be stored into the context1 field of the IOCB for the completion | |
5210 | * callback function to the RPL Accept Response ELS command. | |
5211 | * | |
5212 | * Return code | |
5213 | * 0 - Successfully issued ACC RPL ELS command | |
5214 | * 1 - Failed to issue ACC RPL ELS command | |
5215 | **/ | |
082c0266 | 5216 | static int |
2e0fef85 JS |
5217 | lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, |
5218 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
7bb3b137 | 5219 | { |
2e0fef85 JS |
5220 | struct lpfc_hba *phba = vport->phba; |
5221 | IOCB_t *icmd, *oldcmd; | |
7bb3b137 JW |
5222 | RPL_RSP rpl_rsp; |
5223 | struct lpfc_iocbq *elsiocb; | |
7bb3b137 | 5224 | uint8_t *pcmd; |
dea3101e | 5225 | |
2e0fef85 JS |
5226 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
5227 | ndlp->nlp_DID, ELS_CMD_ACC); | |
7bb3b137 | 5228 | |
488d1469 | 5229 | if (!elsiocb) |
7bb3b137 | 5230 | return 1; |
488d1469 | 5231 | |
7bb3b137 JW |
5232 | icmd = &elsiocb->iocb; |
5233 | oldcmd = &oldiocb->iocb; | |
5234 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
5235 | ||
5236 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5237 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 5238 | pcmd += sizeof(uint16_t); |
7bb3b137 JW |
5239 | *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize); |
5240 | pcmd += sizeof(uint16_t); | |
5241 | ||
5242 | /* Setup the RPL ACC payload */ | |
5243 | rpl_rsp.listLen = be32_to_cpu(1); | |
5244 | rpl_rsp.index = 0; | |
5245 | rpl_rsp.port_num_blk.portNum = 0; | |
2e0fef85 JS |
5246 | rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID); |
5247 | memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname, | |
7bb3b137 | 5248 | sizeof(struct lpfc_name)); |
7bb3b137 | 5249 | memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t)); |
7bb3b137 | 5250 | /* Xmit ELS RPL ACC response tag <ulpIoTag> */ |
e8b62011 JS |
5251 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5252 | "0120 Xmit ELS RPL ACC response tag x%x " | |
5253 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
5254 | "rpi x%x\n", | |
5255 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5256 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5257 | ndlp->nlp_rpi); | |
858c9f6c | 5258 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 5259 | phba->fc_stat.elsXmitACC++; |
3772a991 JS |
5260 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
5261 | IOCB_ERROR) { | |
7bb3b137 JW |
5262 | lpfc_els_free_iocb(phba, elsiocb); |
5263 | return 1; | |
5264 | } | |
5265 | return 0; | |
5266 | } | |
5267 | ||
e59058c4 | 5268 | /** |
3621a710 | 5269 | * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb |
e59058c4 JS |
5270 | * @vport: pointer to a host virtual N_Port data structure. |
5271 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5272 | * @ndlp: pointer to a node-list data structure. | |
5273 | * | |
5274 | * This routine processes Read Port List (RPL) IOCB received as an ELS | |
5275 | * unsolicited event. It first checks the remote port state. If the remote | |
5276 | * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it | |
5277 | * invokes the lpfc_els_rsp_reject() routine to send reject response. | |
5278 | * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine | |
5279 | * to accept the RPL. | |
5280 | * | |
5281 | * Return code | |
5282 | * 0 - Successfully processed rpl iocb (currently always return 0) | |
5283 | **/ | |
7bb3b137 | 5284 | static int |
2e0fef85 JS |
5285 | lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5286 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
5287 | { |
5288 | struct lpfc_dmabuf *pcmd; | |
5289 | uint32_t *lp; | |
5290 | uint32_t maxsize; | |
5291 | uint16_t cmdsize; | |
5292 | RPL *rpl; | |
5293 | struct ls_rjt stat; | |
5294 | ||
2fe165b6 JW |
5295 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
5296 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { | |
90160e01 | 5297 | /* issue rejection response */ |
7bb3b137 JW |
5298 | stat.un.b.lsRjtRsvd0 = 0; |
5299 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5300 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5301 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
5302 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
5303 | NULL); | |
90160e01 JS |
5304 | /* rejected the unsolicited RPL request and done with it */ |
5305 | return 0; | |
7bb3b137 JW |
5306 | } |
5307 | ||
dea3101e JB |
5308 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
5309 | lp = (uint32_t *) pcmd->virt; | |
7bb3b137 | 5310 | rpl = (RPL *) (lp + 1); |
7bb3b137 | 5311 | maxsize = be32_to_cpu(rpl->maxsize); |
dea3101e | 5312 | |
7bb3b137 JW |
5313 | /* We support only one port */ |
5314 | if ((rpl->index == 0) && | |
5315 | ((maxsize == 0) || | |
5316 | ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) { | |
5317 | cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP); | |
2fe165b6 | 5318 | } else { |
7bb3b137 JW |
5319 | cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t); |
5320 | } | |
2e0fef85 | 5321 | lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp); |
dea3101e JB |
5322 | |
5323 | return 0; | |
5324 | } | |
5325 | ||
e59058c4 | 5326 | /** |
3621a710 | 5327 | * lpfc_els_rcv_farp - Process an unsolicited farp request els command |
e59058c4 JS |
5328 | * @vport: pointer to a virtual N_Port data structure. |
5329 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5330 | * @ndlp: pointer to a node-list data structure. | |
5331 | * | |
5332 | * This routine processes Fibre Channel Address Resolution Protocol | |
5333 | * (FARP) Request IOCB received as an ELS unsolicited event. Currently, | |
5334 | * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such, | |
5335 | * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the | |
5336 | * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the | |
5337 | * remote PortName is compared against the FC PortName stored in the @vport | |
5338 | * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is | |
5339 | * compared against the FC NodeName stored in the @vport data structure. | |
5340 | * If any of these matches and the FARP_REQUEST_FARPR flag is set in the | |
5341 | * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is | |
5342 | * invoked to send out FARP Response to the remote node. Before sending the | |
5343 | * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP | |
5344 | * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi() | |
5345 | * routine is invoked to log into the remote port first. | |
5346 | * | |
5347 | * Return code | |
5348 | * 0 - Either the FARP Match Mode not supported or successfully processed | |
5349 | **/ | |
dea3101e | 5350 | static int |
2e0fef85 JS |
5351 | lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5352 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
5353 | { |
5354 | struct lpfc_dmabuf *pcmd; | |
5355 | uint32_t *lp; | |
5356 | IOCB_t *icmd; | |
5357 | FARP *fp; | |
5358 | uint32_t cmd, cnt, did; | |
5359 | ||
5360 | icmd = &cmdiocb->iocb; | |
5361 | did = icmd->un.elsreq64.remoteID; | |
5362 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5363 | lp = (uint32_t *) pcmd->virt; | |
5364 | ||
5365 | cmd = *lp++; | |
5366 | fp = (FARP *) lp; | |
dea3101e | 5367 | /* FARP-REQ received from DID <did> */ |
e8b62011 JS |
5368 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5369 | "0601 FARP-REQ received from DID x%x\n", did); | |
dea3101e JB |
5370 | /* We will only support match on WWPN or WWNN */ |
5371 | if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { | |
c9f8735b | 5372 | return 0; |
dea3101e JB |
5373 | } |
5374 | ||
5375 | cnt = 0; | |
5376 | /* If this FARP command is searching for my portname */ | |
5377 | if (fp->Mflags & FARP_MATCH_PORT) { | |
2e0fef85 | 5378 | if (memcmp(&fp->RportName, &vport->fc_portname, |
92d7f7b0 | 5379 | sizeof(struct lpfc_name)) == 0) |
dea3101e JB |
5380 | cnt = 1; |
5381 | } | |
5382 | ||
5383 | /* If this FARP command is searching for my nodename */ | |
5384 | if (fp->Mflags & FARP_MATCH_NODE) { | |
2e0fef85 | 5385 | if (memcmp(&fp->RnodeName, &vport->fc_nodename, |
92d7f7b0 | 5386 | sizeof(struct lpfc_name)) == 0) |
dea3101e JB |
5387 | cnt = 1; |
5388 | } | |
5389 | ||
5390 | if (cnt) { | |
5391 | if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || | |
5392 | (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { | |
5393 | /* Log back into the node before sending the FARP. */ | |
5394 | if (fp->Rflags & FARP_REQUEST_PLOGI) { | |
5024ab17 | 5395 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 5396 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 5397 | NLP_STE_PLOGI_ISSUE); |
2e0fef85 | 5398 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); |
dea3101e JB |
5399 | } |
5400 | ||
5401 | /* Send a FARP response to that node */ | |
2e0fef85 JS |
5402 | if (fp->Rflags & FARP_REQUEST_FARPR) |
5403 | lpfc_issue_els_farpr(vport, did, 0); | |
dea3101e JB |
5404 | } |
5405 | } | |
c9f8735b | 5406 | return 0; |
dea3101e JB |
5407 | } |
5408 | ||
e59058c4 | 5409 | /** |
3621a710 | 5410 | * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb |
e59058c4 JS |
5411 | * @vport: pointer to a host virtual N_Port data structure. |
5412 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5413 | * @ndlp: pointer to a node-list data structure. | |
5414 | * | |
5415 | * This routine processes Fibre Channel Address Resolution Protocol | |
5416 | * Response (FARPR) IOCB received as an ELS unsolicited event. It simply | |
5417 | * invokes the lpfc_els_rsp_acc() routine to the remote node to accept | |
5418 | * the FARP response request. | |
5419 | * | |
5420 | * Return code | |
5421 | * 0 - Successfully processed FARPR IOCB (currently always return 0) | |
5422 | **/ | |
dea3101e | 5423 | static int |
2e0fef85 JS |
5424 | lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5425 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
5426 | { |
5427 | struct lpfc_dmabuf *pcmd; | |
5428 | uint32_t *lp; | |
5429 | IOCB_t *icmd; | |
5430 | uint32_t cmd, did; | |
5431 | ||
5432 | icmd = &cmdiocb->iocb; | |
5433 | did = icmd->un.elsreq64.remoteID; | |
5434 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5435 | lp = (uint32_t *) pcmd->virt; | |
5436 | ||
5437 | cmd = *lp++; | |
5438 | /* FARP-RSP received from DID <did> */ | |
e8b62011 JS |
5439 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5440 | "0600 FARP-RSP received from DID x%x\n", did); | |
dea3101e | 5441 | /* ACCEPT the Farp resp request */ |
51ef4c26 | 5442 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e JB |
5443 | |
5444 | return 0; | |
5445 | } | |
5446 | ||
e59058c4 | 5447 | /** |
3621a710 | 5448 | * lpfc_els_rcv_fan - Process an unsolicited fan iocb command |
e59058c4 JS |
5449 | * @vport: pointer to a host virtual N_Port data structure. |
5450 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5451 | * @fan_ndlp: pointer to a node-list data structure. | |
5452 | * | |
5453 | * This routine processes a Fabric Address Notification (FAN) IOCB | |
5454 | * command received as an ELS unsolicited event. The FAN ELS command will | |
5455 | * only be processed on a physical port (i.e., the @vport represents the | |
5456 | * physical port). The fabric NodeName and PortName from the FAN IOCB are | |
5457 | * compared against those in the phba data structure. If any of those is | |
5458 | * different, the lpfc_initial_flogi() routine is invoked to initialize | |
5459 | * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise, | |
5460 | * if both of those are identical, the lpfc_issue_fabric_reglogin() routine | |
5461 | * is invoked to register login to the fabric. | |
5462 | * | |
5463 | * Return code | |
5464 | * 0 - Successfully processed fan iocb (currently always return 0). | |
5465 | **/ | |
dea3101e | 5466 | static int |
2e0fef85 JS |
5467 | lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5468 | struct lpfc_nodelist *fan_ndlp) | |
dea3101e | 5469 | { |
0d2b6b83 | 5470 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 5471 | uint32_t *lp; |
5024ab17 | 5472 | FAN *fp; |
dea3101e | 5473 | |
0d2b6b83 JS |
5474 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n"); |
5475 | lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt; | |
5476 | fp = (FAN *) ++lp; | |
5024ab17 | 5477 | /* FAN received; Fan does not have a reply sequence */ |
0d2b6b83 JS |
5478 | if ((vport == phba->pport) && |
5479 | (vport->port_state == LPFC_LOCAL_CFG_LINK)) { | |
5024ab17 | 5480 | if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName, |
0d2b6b83 | 5481 | sizeof(struct lpfc_name))) || |
5024ab17 | 5482 | (memcmp(&phba->fc_fabparam.portName, &fp->FportName, |
0d2b6b83 JS |
5483 | sizeof(struct lpfc_name)))) { |
5484 | /* This port has switched fabrics. FLOGI is required */ | |
2e0fef85 | 5485 | lpfc_initial_flogi(vport); |
0d2b6b83 JS |
5486 | } else { |
5487 | /* FAN verified - skip FLOGI */ | |
5488 | vport->fc_myDID = vport->fc_prevDID; | |
6fb120a7 JS |
5489 | if (phba->sli_rev < LPFC_SLI_REV4) |
5490 | lpfc_issue_fabric_reglogin(vport); | |
5491 | else | |
5492 | lpfc_issue_reg_vfi(vport); | |
5024ab17 | 5493 | } |
dea3101e | 5494 | } |
c9f8735b | 5495 | return 0; |
dea3101e JB |
5496 | } |
5497 | ||
e59058c4 | 5498 | /** |
3621a710 | 5499 | * lpfc_els_timeout - Handler funciton to the els timer |
e59058c4 JS |
5500 | * @ptr: holder for the timer function associated data. |
5501 | * | |
5502 | * This routine is invoked by the ELS timer after timeout. It posts the ELS | |
5503 | * timer timeout event by setting the WORKER_ELS_TMO bit to the work port | |
5504 | * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake | |
5505 | * up the worker thread. It is for the worker thread to invoke the routine | |
5506 | * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO. | |
5507 | **/ | |
dea3101e JB |
5508 | void |
5509 | lpfc_els_timeout(unsigned long ptr) | |
5510 | { | |
2e0fef85 JS |
5511 | struct lpfc_vport *vport = (struct lpfc_vport *) ptr; |
5512 | struct lpfc_hba *phba = vport->phba; | |
5e9d9b82 | 5513 | uint32_t tmo_posted; |
dea3101e JB |
5514 | unsigned long iflag; |
5515 | ||
2e0fef85 | 5516 | spin_lock_irqsave(&vport->work_port_lock, iflag); |
5e9d9b82 JS |
5517 | tmo_posted = vport->work_port_events & WORKER_ELS_TMO; |
5518 | if (!tmo_posted) | |
2e0fef85 | 5519 | vport->work_port_events |= WORKER_ELS_TMO; |
5e9d9b82 | 5520 | spin_unlock_irqrestore(&vport->work_port_lock, iflag); |
92d7f7b0 | 5521 | |
5e9d9b82 JS |
5522 | if (!tmo_posted) |
5523 | lpfc_worker_wake_up(phba); | |
dea3101e JB |
5524 | return; |
5525 | } | |
5526 | ||
2a9bf3d0 | 5527 | |
e59058c4 | 5528 | /** |
3621a710 | 5529 | * lpfc_els_timeout_handler - Process an els timeout event |
e59058c4 JS |
5530 | * @vport: pointer to a virtual N_Port data structure. |
5531 | * | |
5532 | * This routine is the actual handler function that processes an ELS timeout | |
5533 | * event. It walks the ELS ring to get and abort all the IOCBs (except the | |
5534 | * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by | |
5535 | * invoking the lpfc_sli_issue_abort_iotag() routine. | |
5536 | **/ | |
dea3101e | 5537 | void |
2e0fef85 | 5538 | lpfc_els_timeout_handler(struct lpfc_vport *vport) |
dea3101e | 5539 | { |
2e0fef85 | 5540 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
5541 | struct lpfc_sli_ring *pring; |
5542 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
5543 | IOCB_t *cmd = NULL; | |
5544 | struct lpfc_dmabuf *pcmd; | |
2e0fef85 | 5545 | uint32_t els_command = 0; |
dea3101e | 5546 | uint32_t timeout; |
2e0fef85 | 5547 | uint32_t remote_ID = 0xffffffff; |
2a9bf3d0 JS |
5548 | LIST_HEAD(txcmplq_completions); |
5549 | LIST_HEAD(abort_list); | |
5550 | ||
dea3101e | 5551 | |
dea3101e JB |
5552 | timeout = (uint32_t)(phba->fc_ratov << 1); |
5553 | ||
5554 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
dea3101e | 5555 | |
2a9bf3d0 JS |
5556 | spin_lock_irq(&phba->hbalock); |
5557 | list_splice_init(&pring->txcmplq, &txcmplq_completions); | |
5558 | spin_unlock_irq(&phba->hbalock); | |
5559 | ||
5560 | list_for_each_entry_safe(piocb, tmp_iocb, &txcmplq_completions, list) { | |
dea3101e JB |
5561 | cmd = &piocb->iocb; |
5562 | ||
2e0fef85 JS |
5563 | if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 || |
5564 | piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || | |
5565 | piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) | |
dea3101e | 5566 | continue; |
2e0fef85 JS |
5567 | |
5568 | if (piocb->vport != vport) | |
5569 | continue; | |
5570 | ||
dea3101e | 5571 | pcmd = (struct lpfc_dmabuf *) piocb->context2; |
2e0fef85 JS |
5572 | if (pcmd) |
5573 | els_command = *(uint32_t *) (pcmd->virt); | |
dea3101e | 5574 | |
92d7f7b0 JS |
5575 | if (els_command == ELS_CMD_FARP || |
5576 | els_command == ELS_CMD_FARPR || | |
5577 | els_command == ELS_CMD_FDISC) | |
5578 | continue; | |
5579 | ||
dea3101e | 5580 | if (piocb->drvrTimeout > 0) { |
92d7f7b0 | 5581 | if (piocb->drvrTimeout >= timeout) |
dea3101e | 5582 | piocb->drvrTimeout -= timeout; |
92d7f7b0 | 5583 | else |
dea3101e | 5584 | piocb->drvrTimeout = 0; |
dea3101e JB |
5585 | continue; |
5586 | } | |
5587 | ||
2e0fef85 JS |
5588 | remote_ID = 0xffffffff; |
5589 | if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR) | |
dea3101e | 5590 | remote_ID = cmd->un.elsreq64.remoteID; |
2e0fef85 JS |
5591 | else { |
5592 | struct lpfc_nodelist *ndlp; | |
5593 | ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext); | |
58da1ffb | 5594 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
2e0fef85 | 5595 | remote_ID = ndlp->nlp_DID; |
dea3101e | 5596 | } |
2a9bf3d0 JS |
5597 | list_add_tail(&piocb->dlist, &abort_list); |
5598 | } | |
5599 | spin_lock_irq(&phba->hbalock); | |
5600 | list_splice(&txcmplq_completions, &pring->txcmplq); | |
5601 | spin_unlock_irq(&phba->hbalock); | |
5602 | ||
5603 | list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { | |
e8b62011 | 5604 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2a9bf3d0 JS |
5605 | "0127 ELS timeout Data: x%x x%x x%x " |
5606 | "x%x\n", els_command, | |
5607 | remote_ID, cmd->ulpCommand, cmd->ulpIoTag); | |
5608 | spin_lock_irq(&phba->hbalock); | |
5609 | list_del_init(&piocb->dlist); | |
07951076 | 5610 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
2a9bf3d0 | 5611 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 5612 | } |
5a0e326d | 5613 | |
2e0fef85 JS |
5614 | if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt) |
5615 | mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); | |
dea3101e JB |
5616 | } |
5617 | ||
e59058c4 | 5618 | /** |
3621a710 | 5619 | * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport |
e59058c4 JS |
5620 | * @vport: pointer to a host virtual N_Port data structure. |
5621 | * | |
5622 | * This routine is used to clean up all the outstanding ELS commands on a | |
5623 | * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport() | |
5624 | * routine. After that, it walks the ELS transmit queue to remove all the | |
5625 | * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
5626 | * the IOCBs with a non-NULL completion callback function, the callback | |
5627 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
5628 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion | |
5629 | * callback function, the IOCB will simply be released. Finally, it walks | |
5630 | * the ELS transmit completion queue to issue an abort IOCB to any transmit | |
5631 | * completion queue IOCB that is associated with the @vport and is not | |
5632 | * an IOCB from libdfc (i.e., the management plane IOCBs that are not | |
5633 | * part of the discovery state machine) out to HBA by invoking the | |
5634 | * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the | |
5635 | * abort IOCB to any transmit completion queueed IOCB, it does not guarantee | |
5636 | * the IOCBs are aborted when this function returns. | |
5637 | **/ | |
dea3101e | 5638 | void |
2e0fef85 | 5639 | lpfc_els_flush_cmd(struct lpfc_vport *vport) |
dea3101e | 5640 | { |
2534ba75 | 5641 | LIST_HEAD(completions); |
2e0fef85 | 5642 | struct lpfc_hba *phba = vport->phba; |
329f9bc7 | 5643 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
dea3101e JB |
5644 | struct lpfc_iocbq *tmp_iocb, *piocb; |
5645 | IOCB_t *cmd = NULL; | |
92d7f7b0 JS |
5646 | |
5647 | lpfc_fabric_abort_vport(vport); | |
dea3101e | 5648 | |
2e0fef85 | 5649 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
5650 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { |
5651 | cmd = &piocb->iocb; | |
5652 | ||
5653 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { | |
5654 | continue; | |
5655 | } | |
5656 | ||
5657 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
329f9bc7 JS |
5658 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || |
5659 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
5660 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
5661 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
dea3101e | 5662 | continue; |
dea3101e | 5663 | |
2e0fef85 JS |
5664 | if (piocb->vport != vport) |
5665 | continue; | |
5666 | ||
2534ba75 | 5667 | list_move_tail(&piocb->list, &completions); |
1dcb58e5 | 5668 | pring->txq_cnt--; |
dea3101e JB |
5669 | } |
5670 | ||
5671 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
dea3101e JB |
5672 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { |
5673 | continue; | |
5674 | } | |
dea3101e | 5675 | |
2e0fef85 JS |
5676 | if (piocb->vport != vport) |
5677 | continue; | |
5678 | ||
07951076 | 5679 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
dea3101e | 5680 | } |
2e0fef85 | 5681 | spin_unlock_irq(&phba->hbalock); |
2534ba75 | 5682 | |
a257bf90 JS |
5683 | /* Cancell all the IOCBs from the completions list */ |
5684 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
5685 | IOERR_SLI_ABORTED); | |
2534ba75 | 5686 | |
dea3101e JB |
5687 | return; |
5688 | } | |
5689 | ||
e59058c4 | 5690 | /** |
3621a710 | 5691 | * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA |
e59058c4 JS |
5692 | * @phba: pointer to lpfc hba data structure. |
5693 | * | |
5694 | * This routine is used to clean up all the outstanding ELS commands on a | |
5695 | * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba() | |
5696 | * routine. After that, it walks the ELS transmit queue to remove all the | |
5697 | * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
5698 | * the IOCBs with the completion callback function associated, the callback | |
5699 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
5700 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion | |
5701 | * callback function associated, the IOCB will simply be released. Finally, | |
5702 | * it walks the ELS transmit completion queue to issue an abort IOCB to any | |
5703 | * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the | |
5704 | * management plane IOCBs that are not part of the discovery state machine) | |
5705 | * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine. | |
5706 | **/ | |
549e55cd JS |
5707 | void |
5708 | lpfc_els_flush_all_cmd(struct lpfc_hba *phba) | |
5709 | { | |
5710 | LIST_HEAD(completions); | |
5711 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
5712 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
5713 | IOCB_t *cmd = NULL; | |
5714 | ||
5715 | lpfc_fabric_abort_hba(phba); | |
5716 | spin_lock_irq(&phba->hbalock); | |
5717 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { | |
5718 | cmd = &piocb->iocb; | |
5719 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
5720 | continue; | |
5721 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
5722 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || | |
5723 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
5724 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
5725 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
5726 | continue; | |
5727 | list_move_tail(&piocb->list, &completions); | |
5728 | pring->txq_cnt--; | |
5729 | } | |
5730 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
5731 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
5732 | continue; | |
5733 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); | |
5734 | } | |
5735 | spin_unlock_irq(&phba->hbalock); | |
a257bf90 JS |
5736 | |
5737 | /* Cancel all the IOCBs from the completions list */ | |
5738 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
5739 | IOERR_SLI_ABORTED); | |
5740 | ||
549e55cd JS |
5741 | return; |
5742 | } | |
5743 | ||
ea2151b4 | 5744 | /** |
3621a710 | 5745 | * lpfc_send_els_failure_event - Posts an ELS command failure event |
ea2151b4 JS |
5746 | * @phba: Pointer to hba context object. |
5747 | * @cmdiocbp: Pointer to command iocb which reported error. | |
5748 | * @rspiocbp: Pointer to response iocb which reported error. | |
5749 | * | |
5750 | * This function sends an event when there is an ELS command | |
5751 | * failure. | |
5752 | **/ | |
5753 | void | |
5754 | lpfc_send_els_failure_event(struct lpfc_hba *phba, | |
5755 | struct lpfc_iocbq *cmdiocbp, | |
5756 | struct lpfc_iocbq *rspiocbp) | |
5757 | { | |
5758 | struct lpfc_vport *vport = cmdiocbp->vport; | |
5759 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
5760 | struct lpfc_lsrjt_event lsrjt_event; | |
5761 | struct lpfc_fabric_event_header fabric_event; | |
5762 | struct ls_rjt stat; | |
5763 | struct lpfc_nodelist *ndlp; | |
5764 | uint32_t *pcmd; | |
5765 | ||
5766 | ndlp = cmdiocbp->context1; | |
5767 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) | |
5768 | return; | |
5769 | ||
5770 | if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) { | |
5771 | lsrjt_event.header.event_type = FC_REG_ELS_EVENT; | |
5772 | lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV; | |
5773 | memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname, | |
5774 | sizeof(struct lpfc_name)); | |
5775 | memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename, | |
5776 | sizeof(struct lpfc_name)); | |
5777 | pcmd = (uint32_t *) (((struct lpfc_dmabuf *) | |
5778 | cmdiocbp->context2)->virt); | |
49198b37 | 5779 | lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0; |
ea2151b4 JS |
5780 | stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]); |
5781 | lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode; | |
5782 | lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp; | |
5783 | fc_host_post_vendor_event(shost, | |
5784 | fc_get_event_number(), | |
5785 | sizeof(lsrjt_event), | |
5786 | (char *)&lsrjt_event, | |
ddcc50f0 | 5787 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
5788 | return; |
5789 | } | |
5790 | if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) || | |
5791 | (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) { | |
5792 | fabric_event.event_type = FC_REG_FABRIC_EVENT; | |
5793 | if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) | |
5794 | fabric_event.subcategory = LPFC_EVENT_PORT_BUSY; | |
5795 | else | |
5796 | fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY; | |
5797 | memcpy(fabric_event.wwpn, &ndlp->nlp_portname, | |
5798 | sizeof(struct lpfc_name)); | |
5799 | memcpy(fabric_event.wwnn, &ndlp->nlp_nodename, | |
5800 | sizeof(struct lpfc_name)); | |
5801 | fc_host_post_vendor_event(shost, | |
5802 | fc_get_event_number(), | |
5803 | sizeof(fabric_event), | |
5804 | (char *)&fabric_event, | |
ddcc50f0 | 5805 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
5806 | return; |
5807 | } | |
5808 | ||
5809 | } | |
5810 | ||
5811 | /** | |
3621a710 | 5812 | * lpfc_send_els_event - Posts unsolicited els event |
ea2151b4 JS |
5813 | * @vport: Pointer to vport object. |
5814 | * @ndlp: Pointer FC node object. | |
5815 | * @cmd: ELS command code. | |
5816 | * | |
5817 | * This function posts an event when there is an incoming | |
5818 | * unsolicited ELS command. | |
5819 | **/ | |
5820 | static void | |
5821 | lpfc_send_els_event(struct lpfc_vport *vport, | |
5822 | struct lpfc_nodelist *ndlp, | |
ddcc50f0 | 5823 | uint32_t *payload) |
ea2151b4 | 5824 | { |
ddcc50f0 JS |
5825 | struct lpfc_els_event_header *els_data = NULL; |
5826 | struct lpfc_logo_event *logo_data = NULL; | |
ea2151b4 JS |
5827 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
5828 | ||
ddcc50f0 JS |
5829 | if (*payload == ELS_CMD_LOGO) { |
5830 | logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL); | |
5831 | if (!logo_data) { | |
5832 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
5833 | "0148 Failed to allocate memory " | |
5834 | "for LOGO event\n"); | |
5835 | return; | |
5836 | } | |
5837 | els_data = &logo_data->header; | |
5838 | } else { | |
5839 | els_data = kmalloc(sizeof(struct lpfc_els_event_header), | |
5840 | GFP_KERNEL); | |
5841 | if (!els_data) { | |
5842 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
5843 | "0149 Failed to allocate memory " | |
5844 | "for ELS event\n"); | |
5845 | return; | |
5846 | } | |
5847 | } | |
5848 | els_data->event_type = FC_REG_ELS_EVENT; | |
5849 | switch (*payload) { | |
ea2151b4 | 5850 | case ELS_CMD_PLOGI: |
ddcc50f0 | 5851 | els_data->subcategory = LPFC_EVENT_PLOGI_RCV; |
ea2151b4 JS |
5852 | break; |
5853 | case ELS_CMD_PRLO: | |
ddcc50f0 | 5854 | els_data->subcategory = LPFC_EVENT_PRLO_RCV; |
ea2151b4 JS |
5855 | break; |
5856 | case ELS_CMD_ADISC: | |
ddcc50f0 JS |
5857 | els_data->subcategory = LPFC_EVENT_ADISC_RCV; |
5858 | break; | |
5859 | case ELS_CMD_LOGO: | |
5860 | els_data->subcategory = LPFC_EVENT_LOGO_RCV; | |
5861 | /* Copy the WWPN in the LOGO payload */ | |
5862 | memcpy(logo_data->logo_wwpn, &payload[2], | |
5863 | sizeof(struct lpfc_name)); | |
ea2151b4 JS |
5864 | break; |
5865 | default: | |
e916141c | 5866 | kfree(els_data); |
ea2151b4 JS |
5867 | return; |
5868 | } | |
ddcc50f0 JS |
5869 | memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); |
5870 | memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); | |
5871 | if (*payload == ELS_CMD_LOGO) { | |
5872 | fc_host_post_vendor_event(shost, | |
5873 | fc_get_event_number(), | |
5874 | sizeof(struct lpfc_logo_event), | |
5875 | (char *)logo_data, | |
5876 | LPFC_NL_VENDOR_ID); | |
5877 | kfree(logo_data); | |
5878 | } else { | |
5879 | fc_host_post_vendor_event(shost, | |
5880 | fc_get_event_number(), | |
5881 | sizeof(struct lpfc_els_event_header), | |
5882 | (char *)els_data, | |
5883 | LPFC_NL_VENDOR_ID); | |
5884 | kfree(els_data); | |
5885 | } | |
ea2151b4 JS |
5886 | |
5887 | return; | |
5888 | } | |
5889 | ||
5890 | ||
e59058c4 | 5891 | /** |
3621a710 | 5892 | * lpfc_els_unsol_buffer - Process an unsolicited event data buffer |
e59058c4 JS |
5893 | * @phba: pointer to lpfc hba data structure. |
5894 | * @pring: pointer to a SLI ring. | |
5895 | * @vport: pointer to a host virtual N_Port data structure. | |
5896 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
5897 | * | |
5898 | * This routine is used for processing the IOCB associated with a unsolicited | |
5899 | * event. It first determines whether there is an existing ndlp that matches | |
5900 | * the DID from the unsolicited IOCB. If not, it will create a new one with | |
5901 | * the DID from the unsolicited IOCB. The ELS command from the unsolicited | |
5902 | * IOCB is then used to invoke the proper routine and to set up proper state | |
5903 | * of the discovery state machine. | |
5904 | **/ | |
ed957684 JS |
5905 | static void |
5906 | lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
92d7f7b0 | 5907 | struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) |
dea3101e | 5908 | { |
87af33fe | 5909 | struct Scsi_Host *shost; |
dea3101e | 5910 | struct lpfc_nodelist *ndlp; |
dea3101e | 5911 | struct ls_rjt stat; |
92d7f7b0 | 5912 | uint32_t *payload; |
2e0fef85 | 5913 | uint32_t cmd, did, newnode, rjt_err = 0; |
ed957684 | 5914 | IOCB_t *icmd = &elsiocb->iocb; |
dea3101e | 5915 | |
e47c9093 | 5916 | if (!vport || !(elsiocb->context2)) |
dea3101e | 5917 | goto dropit; |
2e0fef85 | 5918 | |
dea3101e | 5919 | newnode = 0; |
92d7f7b0 JS |
5920 | payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt; |
5921 | cmd = *payload; | |
ed957684 | 5922 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0) |
495a714c | 5923 | lpfc_post_buffer(phba, pring, 1); |
dea3101e | 5924 | |
858c9f6c JS |
5925 | did = icmd->un.rcvels.remoteID; |
5926 | if (icmd->ulpStatus) { | |
5927 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
5928 | "RCV Unsol ELS: status:x%x/x%x did:x%x", | |
5929 | icmd->ulpStatus, icmd->un.ulpWord[4], did); | |
dea3101e | 5930 | goto dropit; |
858c9f6c | 5931 | } |
dea3101e JB |
5932 | |
5933 | /* Check to see if link went down during discovery */ | |
ed957684 | 5934 | if (lpfc_els_chk_latt(vport)) |
dea3101e | 5935 | goto dropit; |
dea3101e | 5936 | |
c868595d | 5937 | /* Ignore traffic received during vport shutdown. */ |
92d7f7b0 JS |
5938 | if (vport->load_flag & FC_UNLOADING) |
5939 | goto dropit; | |
5940 | ||
2e0fef85 | 5941 | ndlp = lpfc_findnode_did(vport, did); |
c9f8735b | 5942 | if (!ndlp) { |
dea3101e | 5943 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b | 5944 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
ed957684 | 5945 | if (!ndlp) |
dea3101e | 5946 | goto dropit; |
dea3101e | 5947 | |
2e0fef85 | 5948 | lpfc_nlp_init(vport, ndlp, did); |
98c9ea5c | 5949 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
dea3101e | 5950 | newnode = 1; |
e47c9093 | 5951 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) |
dea3101e | 5952 | ndlp->nlp_type |= NLP_FABRIC; |
58da1ffb JS |
5953 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
5954 | ndlp = lpfc_enable_node(vport, ndlp, | |
5955 | NLP_STE_UNUSED_NODE); | |
5956 | if (!ndlp) | |
5957 | goto dropit; | |
5958 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
5959 | newnode = 1; | |
5960 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
5961 | ndlp->nlp_type |= NLP_FABRIC; | |
5962 | } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { | |
5963 | /* This is similar to the new node path */ | |
5964 | ndlp = lpfc_nlp_get(ndlp); | |
5965 | if (!ndlp) | |
5966 | goto dropit; | |
5967 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
5968 | newnode = 1; | |
87af33fe | 5969 | } |
dea3101e JB |
5970 | |
5971 | phba->fc_stat.elsRcvFrame++; | |
e47c9093 | 5972 | |
329f9bc7 | 5973 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
2e0fef85 | 5974 | elsiocb->vport = vport; |
dea3101e JB |
5975 | |
5976 | if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { | |
5977 | cmd &= ELS_CMD_MASK; | |
5978 | } | |
5979 | /* ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
5980 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5981 | "0112 ELS command x%x received from NPORT x%x " | |
5982 | "Data: x%x\n", cmd, did, vport->port_state); | |
dea3101e JB |
5983 | switch (cmd) { |
5984 | case ELS_CMD_PLOGI: | |
858c9f6c JS |
5985 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5986 | "RCV PLOGI: did:x%x/ste:x%x flg:x%x", | |
5987 | did, vport->port_state, ndlp->nlp_flag); | |
5988 | ||
dea3101e | 5989 | phba->fc_stat.elsRcvPLOGI++; |
858c9f6c JS |
5990 | ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); |
5991 | ||
ddcc50f0 | 5992 | lpfc_send_els_event(vport, ndlp, payload); |
858c9f6c | 5993 | if (vport->port_state < LPFC_DISC_AUTH) { |
1b32f6aa JS |
5994 | if (!(phba->pport->fc_flag & FC_PT2PT) || |
5995 | (phba->pport->fc_flag & FC_PT2PT_PLOGI)) { | |
5996 | rjt_err = LSRJT_UNABLE_TPC; | |
5997 | break; | |
5998 | } | |
5999 | /* We get here, and drop thru, if we are PT2PT with | |
6000 | * another NPort and the other side has initiated | |
6001 | * the PLOGI before responding to our FLOGI. | |
6002 | */ | |
dea3101e | 6003 | } |
87af33fe JS |
6004 | |
6005 | shost = lpfc_shost_from_vport(vport); | |
6006 | spin_lock_irq(shost->host_lock); | |
6007 | ndlp->nlp_flag &= ~NLP_TARGET_REMOVE; | |
6008 | spin_unlock_irq(shost->host_lock); | |
6009 | ||
2e0fef85 JS |
6010 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6011 | NLP_EVT_RCV_PLOGI); | |
858c9f6c | 6012 | |
dea3101e JB |
6013 | break; |
6014 | case ELS_CMD_FLOGI: | |
858c9f6c JS |
6015 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6016 | "RCV FLOGI: did:x%x/ste:x%x flg:x%x", | |
6017 | did, vport->port_state, ndlp->nlp_flag); | |
6018 | ||
dea3101e | 6019 | phba->fc_stat.elsRcvFLOGI++; |
51ef4c26 | 6020 | lpfc_els_rcv_flogi(vport, elsiocb, ndlp); |
87af33fe | 6021 | if (newnode) |
98c9ea5c | 6022 | lpfc_nlp_put(ndlp); |
dea3101e JB |
6023 | break; |
6024 | case ELS_CMD_LOGO: | |
858c9f6c JS |
6025 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6026 | "RCV LOGO: did:x%x/ste:x%x flg:x%x", | |
6027 | did, vport->port_state, ndlp->nlp_flag); | |
6028 | ||
dea3101e | 6029 | phba->fc_stat.elsRcvLOGO++; |
ddcc50f0 | 6030 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 6031 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6032 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6033 | break; |
6034 | } | |
2e0fef85 | 6035 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO); |
dea3101e JB |
6036 | break; |
6037 | case ELS_CMD_PRLO: | |
858c9f6c JS |
6038 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6039 | "RCV PRLO: did:x%x/ste:x%x flg:x%x", | |
6040 | did, vport->port_state, ndlp->nlp_flag); | |
6041 | ||
dea3101e | 6042 | phba->fc_stat.elsRcvPRLO++; |
ddcc50f0 | 6043 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 6044 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6045 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6046 | break; |
6047 | } | |
2e0fef85 | 6048 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); |
dea3101e JB |
6049 | break; |
6050 | case ELS_CMD_RSCN: | |
6051 | phba->fc_stat.elsRcvRSCN++; | |
51ef4c26 | 6052 | lpfc_els_rcv_rscn(vport, elsiocb, ndlp); |
87af33fe | 6053 | if (newnode) |
98c9ea5c | 6054 | lpfc_nlp_put(ndlp); |
dea3101e JB |
6055 | break; |
6056 | case ELS_CMD_ADISC: | |
858c9f6c JS |
6057 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6058 | "RCV ADISC: did:x%x/ste:x%x flg:x%x", | |
6059 | did, vport->port_state, ndlp->nlp_flag); | |
6060 | ||
ddcc50f0 | 6061 | lpfc_send_els_event(vport, ndlp, payload); |
dea3101e | 6062 | phba->fc_stat.elsRcvADISC++; |
2e0fef85 | 6063 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6064 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6065 | break; |
6066 | } | |
2e0fef85 JS |
6067 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6068 | NLP_EVT_RCV_ADISC); | |
dea3101e JB |
6069 | break; |
6070 | case ELS_CMD_PDISC: | |
858c9f6c JS |
6071 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6072 | "RCV PDISC: did:x%x/ste:x%x flg:x%x", | |
6073 | did, vport->port_state, ndlp->nlp_flag); | |
6074 | ||
dea3101e | 6075 | phba->fc_stat.elsRcvPDISC++; |
2e0fef85 | 6076 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6077 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6078 | break; |
6079 | } | |
2e0fef85 JS |
6080 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6081 | NLP_EVT_RCV_PDISC); | |
dea3101e JB |
6082 | break; |
6083 | case ELS_CMD_FARPR: | |
858c9f6c JS |
6084 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6085 | "RCV FARPR: did:x%x/ste:x%x flg:x%x", | |
6086 | did, vport->port_state, ndlp->nlp_flag); | |
6087 | ||
dea3101e | 6088 | phba->fc_stat.elsRcvFARPR++; |
2e0fef85 | 6089 | lpfc_els_rcv_farpr(vport, elsiocb, ndlp); |
dea3101e JB |
6090 | break; |
6091 | case ELS_CMD_FARP: | |
858c9f6c JS |
6092 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6093 | "RCV FARP: did:x%x/ste:x%x flg:x%x", | |
6094 | did, vport->port_state, ndlp->nlp_flag); | |
6095 | ||
dea3101e | 6096 | phba->fc_stat.elsRcvFARP++; |
2e0fef85 | 6097 | lpfc_els_rcv_farp(vport, elsiocb, ndlp); |
dea3101e JB |
6098 | break; |
6099 | case ELS_CMD_FAN: | |
858c9f6c JS |
6100 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6101 | "RCV FAN: did:x%x/ste:x%x flg:x%x", | |
6102 | did, vport->port_state, ndlp->nlp_flag); | |
6103 | ||
dea3101e | 6104 | phba->fc_stat.elsRcvFAN++; |
2e0fef85 | 6105 | lpfc_els_rcv_fan(vport, elsiocb, ndlp); |
dea3101e | 6106 | break; |
dea3101e | 6107 | case ELS_CMD_PRLI: |
858c9f6c JS |
6108 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6109 | "RCV PRLI: did:x%x/ste:x%x flg:x%x", | |
6110 | did, vport->port_state, ndlp->nlp_flag); | |
6111 | ||
dea3101e | 6112 | phba->fc_stat.elsRcvPRLI++; |
2e0fef85 | 6113 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6114 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6115 | break; |
6116 | } | |
2e0fef85 | 6117 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI); |
dea3101e | 6118 | break; |
7bb3b137 | 6119 | case ELS_CMD_LIRR: |
858c9f6c JS |
6120 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6121 | "RCV LIRR: did:x%x/ste:x%x flg:x%x", | |
6122 | did, vport->port_state, ndlp->nlp_flag); | |
6123 | ||
7bb3b137 | 6124 | phba->fc_stat.elsRcvLIRR++; |
2e0fef85 | 6125 | lpfc_els_rcv_lirr(vport, elsiocb, ndlp); |
87af33fe | 6126 | if (newnode) |
98c9ea5c | 6127 | lpfc_nlp_put(ndlp); |
7bb3b137 | 6128 | break; |
12265f68 JS |
6129 | case ELS_CMD_RLS: |
6130 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6131 | "RCV RLS: did:x%x/ste:x%x flg:x%x", | |
6132 | did, vport->port_state, ndlp->nlp_flag); | |
6133 | ||
6134 | phba->fc_stat.elsRcvRLS++; | |
6135 | lpfc_els_rcv_rls(vport, elsiocb, ndlp); | |
6136 | if (newnode) | |
6137 | lpfc_nlp_put(ndlp); | |
6138 | break; | |
7bb3b137 | 6139 | case ELS_CMD_RPS: |
858c9f6c JS |
6140 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6141 | "RCV RPS: did:x%x/ste:x%x flg:x%x", | |
6142 | did, vport->port_state, ndlp->nlp_flag); | |
6143 | ||
7bb3b137 | 6144 | phba->fc_stat.elsRcvRPS++; |
2e0fef85 | 6145 | lpfc_els_rcv_rps(vport, elsiocb, ndlp); |
87af33fe | 6146 | if (newnode) |
98c9ea5c | 6147 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
6148 | break; |
6149 | case ELS_CMD_RPL: | |
858c9f6c JS |
6150 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6151 | "RCV RPL: did:x%x/ste:x%x flg:x%x", | |
6152 | did, vport->port_state, ndlp->nlp_flag); | |
6153 | ||
7bb3b137 | 6154 | phba->fc_stat.elsRcvRPL++; |
2e0fef85 | 6155 | lpfc_els_rcv_rpl(vport, elsiocb, ndlp); |
87af33fe | 6156 | if (newnode) |
98c9ea5c | 6157 | lpfc_nlp_put(ndlp); |
7bb3b137 | 6158 | break; |
dea3101e | 6159 | case ELS_CMD_RNID: |
858c9f6c JS |
6160 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6161 | "RCV RNID: did:x%x/ste:x%x flg:x%x", | |
6162 | did, vport->port_state, ndlp->nlp_flag); | |
6163 | ||
dea3101e | 6164 | phba->fc_stat.elsRcvRNID++; |
2e0fef85 | 6165 | lpfc_els_rcv_rnid(vport, elsiocb, ndlp); |
87af33fe | 6166 | if (newnode) |
98c9ea5c | 6167 | lpfc_nlp_put(ndlp); |
dea3101e | 6168 | break; |
12265f68 JS |
6169 | case ELS_CMD_RTV: |
6170 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6171 | "RCV RTV: did:x%x/ste:x%x flg:x%x", | |
6172 | did, vport->port_state, ndlp->nlp_flag); | |
6173 | phba->fc_stat.elsRcvRTV++; | |
6174 | lpfc_els_rcv_rtv(vport, elsiocb, ndlp); | |
6175 | if (newnode) | |
6176 | lpfc_nlp_put(ndlp); | |
6177 | break; | |
5ffc266e JS |
6178 | case ELS_CMD_RRQ: |
6179 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6180 | "RCV RRQ: did:x%x/ste:x%x flg:x%x", | |
6181 | did, vport->port_state, ndlp->nlp_flag); | |
6182 | ||
6183 | phba->fc_stat.elsRcvRRQ++; | |
6184 | lpfc_els_rcv_rrq(vport, elsiocb, ndlp); | |
6185 | if (newnode) | |
6186 | lpfc_nlp_put(ndlp); | |
6187 | break; | |
12265f68 JS |
6188 | case ELS_CMD_ECHO: |
6189 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6190 | "RCV ECHO: did:x%x/ste:x%x flg:x%x", | |
6191 | did, vport->port_state, ndlp->nlp_flag); | |
6192 | ||
6193 | phba->fc_stat.elsRcvECHO++; | |
6194 | lpfc_els_rcv_echo(vport, elsiocb, ndlp); | |
6195 | if (newnode) | |
6196 | lpfc_nlp_put(ndlp); | |
6197 | break; | |
dea3101e | 6198 | default: |
858c9f6c JS |
6199 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6200 | "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x", | |
6201 | cmd, did, vport->port_state); | |
6202 | ||
dea3101e | 6203 | /* Unsupported ELS command, reject */ |
63e801ce | 6204 | rjt_err = LSRJT_CMD_UNSUPPORTED; |
dea3101e JB |
6205 | |
6206 | /* Unknown ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
6207 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6208 | "0115 Unknown ELS command x%x " | |
6209 | "received from NPORT x%x\n", cmd, did); | |
87af33fe | 6210 | if (newnode) |
98c9ea5c | 6211 | lpfc_nlp_put(ndlp); |
dea3101e JB |
6212 | break; |
6213 | } | |
6214 | ||
6215 | /* check if need to LS_RJT received ELS cmd */ | |
6216 | if (rjt_err) { | |
92d7f7b0 | 6217 | memset(&stat, 0, sizeof(stat)); |
858c9f6c | 6218 | stat.un.b.lsRjtRsnCode = rjt_err; |
1f679caf | 6219 | stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; |
858c9f6c JS |
6220 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp, |
6221 | NULL); | |
dea3101e JB |
6222 | } |
6223 | ||
d7c255b2 JS |
6224 | lpfc_nlp_put(elsiocb->context1); |
6225 | elsiocb->context1 = NULL; | |
ed957684 JS |
6226 | return; |
6227 | ||
6228 | dropit: | |
98c9ea5c | 6229 | if (vport && !(vport->load_flag & FC_UNLOADING)) |
6fb120a7 JS |
6230 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6231 | "0111 Dropping received ELS cmd " | |
ed957684 | 6232 | "Data: x%x x%x x%x\n", |
6fb120a7 | 6233 | icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout); |
ed957684 JS |
6234 | phba->fc_stat.elsRcvDrop++; |
6235 | } | |
6236 | ||
e59058c4 | 6237 | /** |
3621a710 | 6238 | * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier |
e59058c4 JS |
6239 | * @phba: pointer to lpfc hba data structure. |
6240 | * @vpi: host virtual N_Port identifier. | |
6241 | * | |
6242 | * This routine finds a vport on a HBA (referred by @phba) through a | |
6243 | * @vpi. The function walks the HBA's vport list and returns the address | |
6244 | * of the vport with the matching @vpi. | |
6245 | * | |
6246 | * Return code | |
6247 | * NULL - No vport with the matching @vpi found | |
6248 | * Otherwise - Address to the vport with the matching @vpi. | |
6249 | **/ | |
6669f9bb | 6250 | struct lpfc_vport * |
92d7f7b0 JS |
6251 | lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) |
6252 | { | |
6253 | struct lpfc_vport *vport; | |
549e55cd | 6254 | unsigned long flags; |
92d7f7b0 | 6255 | |
549e55cd | 6256 | spin_lock_irqsave(&phba->hbalock, flags); |
92d7f7b0 | 6257 | list_for_each_entry(vport, &phba->port_list, listentry) { |
549e55cd JS |
6258 | if (vport->vpi == vpi) { |
6259 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
92d7f7b0 | 6260 | return vport; |
549e55cd | 6261 | } |
92d7f7b0 | 6262 | } |
549e55cd | 6263 | spin_unlock_irqrestore(&phba->hbalock, flags); |
92d7f7b0 JS |
6264 | return NULL; |
6265 | } | |
ed957684 | 6266 | |
e59058c4 | 6267 | /** |
3621a710 | 6268 | * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring |
e59058c4 JS |
6269 | * @phba: pointer to lpfc hba data structure. |
6270 | * @pring: pointer to a SLI ring. | |
6271 | * @elsiocb: pointer to lpfc els iocb data structure. | |
6272 | * | |
6273 | * This routine is used to process an unsolicited event received from a SLI | |
6274 | * (Service Level Interface) ring. The actual processing of the data buffer | |
6275 | * associated with the unsolicited event is done by invoking the routine | |
6276 | * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the | |
6277 | * SLI ring on which the unsolicited event was received. | |
6278 | **/ | |
ed957684 JS |
6279 | void |
6280 | lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
6281 | struct lpfc_iocbq *elsiocb) | |
6282 | { | |
6283 | struct lpfc_vport *vport = phba->pport; | |
ed957684 | 6284 | IOCB_t *icmd = &elsiocb->iocb; |
ed957684 | 6285 | dma_addr_t paddr; |
92d7f7b0 JS |
6286 | struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2; |
6287 | struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3; | |
6288 | ||
d7c255b2 | 6289 | elsiocb->context1 = NULL; |
92d7f7b0 JS |
6290 | elsiocb->context2 = NULL; |
6291 | elsiocb->context3 = NULL; | |
ed957684 | 6292 | |
92d7f7b0 JS |
6293 | if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) { |
6294 | lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); | |
6295 | } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT && | |
6296 | (icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING) { | |
ed957684 JS |
6297 | phba->fc_stat.NoRcvBuf++; |
6298 | /* Not enough posted buffers; Try posting more buffers */ | |
92d7f7b0 | 6299 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) |
495a714c | 6300 | lpfc_post_buffer(phba, pring, 0); |
ed957684 JS |
6301 | return; |
6302 | } | |
6303 | ||
92d7f7b0 JS |
6304 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
6305 | (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX || | |
6306 | icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
6307 | if (icmd->unsli3.rcvsli3.vpi == 0xffff) | |
6308 | vport = phba->pport; | |
6fb120a7 JS |
6309 | else |
6310 | vport = lpfc_find_vport_by_vpid(phba, | |
6311 | icmd->unsli3.rcvsli3.vpi - phba->vpi_base); | |
92d7f7b0 | 6312 | } |
7f5f3d0d JS |
6313 | /* If there are no BDEs associated |
6314 | * with this IOCB, there is nothing to do. | |
6315 | */ | |
ed957684 JS |
6316 | if (icmd->ulpBdeCount == 0) |
6317 | return; | |
6318 | ||
7f5f3d0d JS |
6319 | /* type of ELS cmd is first 32bit word |
6320 | * in packet | |
6321 | */ | |
ed957684 | 6322 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
92d7f7b0 | 6323 | elsiocb->context2 = bdeBuf1; |
ed957684 JS |
6324 | } else { |
6325 | paddr = getPaddr(icmd->un.cont64[0].addrHigh, | |
6326 | icmd->un.cont64[0].addrLow); | |
92d7f7b0 JS |
6327 | elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring, |
6328 | paddr); | |
ed957684 JS |
6329 | } |
6330 | ||
92d7f7b0 JS |
6331 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); |
6332 | /* | |
6333 | * The different unsolicited event handlers would tell us | |
6334 | * if they are done with "mp" by setting context2 to NULL. | |
6335 | */ | |
dea3101e | 6336 | if (elsiocb->context2) { |
92d7f7b0 JS |
6337 | lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2); |
6338 | elsiocb->context2 = NULL; | |
dea3101e | 6339 | } |
ed957684 JS |
6340 | |
6341 | /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */ | |
92d7f7b0 | 6342 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) && |
ed957684 | 6343 | icmd->ulpBdeCount == 2) { |
92d7f7b0 JS |
6344 | elsiocb->context2 = bdeBuf2; |
6345 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); | |
ed957684 JS |
6346 | /* free mp if we are done with it */ |
6347 | if (elsiocb->context2) { | |
92d7f7b0 JS |
6348 | lpfc_in_buf_free(phba, elsiocb->context2); |
6349 | elsiocb->context2 = NULL; | |
6350 | } | |
6351 | } | |
6352 | } | |
6353 | ||
e59058c4 | 6354 | /** |
3621a710 | 6355 | * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr |
e59058c4 JS |
6356 | * @phba: pointer to lpfc hba data structure. |
6357 | * @vport: pointer to a virtual N_Port data structure. | |
6358 | * | |
6359 | * This routine issues a Port Login (PLOGI) to the Name Server with | |
6360 | * State Change Request (SCR) for a @vport. This routine will create an | |
6361 | * ndlp for the Name Server associated to the @vport if such node does | |
6362 | * not already exist. The PLOGI to Name Server is issued by invoking the | |
6363 | * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface | |
6364 | * (FDMI) is configured to the @vport, a FDMI node will be created and | |
6365 | * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine. | |
6366 | **/ | |
92d7f7b0 JS |
6367 | void |
6368 | lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) | |
6369 | { | |
6370 | struct lpfc_nodelist *ndlp, *ndlp_fdmi; | |
6371 | ||
6372 | ndlp = lpfc_findnode_did(vport, NameServer_DID); | |
6373 | if (!ndlp) { | |
6374 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
6375 | if (!ndlp) { | |
6376 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
6377 | lpfc_disc_start(vport); | |
6378 | return; | |
6379 | } | |
6380 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
6381 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6382 | "0251 NameServer login: no memory\n"); | |
92d7f7b0 JS |
6383 | return; |
6384 | } | |
6385 | lpfc_nlp_init(vport, ndlp, NameServer_DID); | |
e47c9093 JS |
6386 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
6387 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
6388 | if (!ndlp) { | |
6389 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
6390 | lpfc_disc_start(vport); | |
6391 | return; | |
6392 | } | |
6393 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6394 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6395 | "0348 NameServer login: node freed\n"); | |
6396 | return; | |
6397 | } | |
92d7f7b0 | 6398 | } |
58da1ffb | 6399 | ndlp->nlp_type |= NLP_FABRIC; |
92d7f7b0 JS |
6400 | |
6401 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); | |
6402 | ||
6403 | if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) { | |
6404 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
6405 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6406 | "0252 Cannot issue NameServer login\n"); | |
92d7f7b0 JS |
6407 | return; |
6408 | } | |
6409 | ||
3de2a653 | 6410 | if (vport->cfg_fdmi_on) { |
63e801ce JS |
6411 | /* If this is the first time, allocate an ndlp and initialize |
6412 | * it. Otherwise, make sure the node is enabled and then do the | |
6413 | * login. | |
6414 | */ | |
6415 | ndlp_fdmi = lpfc_findnode_did(vport, FDMI_DID); | |
6416 | if (!ndlp_fdmi) { | |
6417 | ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool, | |
6418 | GFP_KERNEL); | |
6419 | if (ndlp_fdmi) { | |
6420 | lpfc_nlp_init(vport, ndlp_fdmi, FDMI_DID); | |
6421 | ndlp_fdmi->nlp_type |= NLP_FABRIC; | |
6422 | } else | |
6423 | return; | |
6424 | } | |
6425 | if (!NLP_CHK_NODE_ACT(ndlp_fdmi)) | |
6426 | ndlp_fdmi = lpfc_enable_node(vport, | |
6427 | ndlp_fdmi, | |
6428 | NLP_STE_NPR_NODE); | |
6429 | ||
92d7f7b0 | 6430 | if (ndlp_fdmi) { |
58da1ffb | 6431 | lpfc_nlp_set_state(vport, ndlp_fdmi, |
63e801ce JS |
6432 | NLP_STE_PLOGI_ISSUE); |
6433 | lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID, 0); | |
92d7f7b0 JS |
6434 | } |
6435 | } | |
92d7f7b0 JS |
6436 | } |
6437 | ||
e59058c4 | 6438 | /** |
3621a710 | 6439 | * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport |
e59058c4 JS |
6440 | * @phba: pointer to lpfc hba data structure. |
6441 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
6442 | * | |
6443 | * This routine is the completion callback function to register new vport | |
6444 | * mailbox command. If the new vport mailbox command completes successfully, | |
6445 | * the fabric registration login shall be performed on physical port (the | |
6446 | * new vport created is actually a physical port, with VPI 0) or the port | |
6447 | * login to Name Server for State Change Request (SCR) will be performed | |
6448 | * on virtual port (real virtual port, with VPI greater than 0). | |
6449 | **/ | |
92d7f7b0 JS |
6450 | static void |
6451 | lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
6452 | { | |
6453 | struct lpfc_vport *vport = pmb->vport; | |
6454 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6455 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
04c68496 | 6456 | MAILBOX_t *mb = &pmb->u.mb; |
695a814e | 6457 | int rc; |
92d7f7b0 | 6458 | |
09372820 | 6459 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 6460 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; |
09372820 | 6461 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 JS |
6462 | |
6463 | if (mb->mbxStatus) { | |
e8b62011 | 6464 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
38b92ef8 JS |
6465 | "0915 Register VPI failed : Status: x%x" |
6466 | " upd bit: x%x \n", mb->mbxStatus, | |
6467 | mb->un.varRegVpi.upd); | |
6468 | if (phba->sli_rev == LPFC_SLI_REV4 && | |
6469 | mb->un.varRegVpi.upd) | |
6470 | goto mbox_err_exit ; | |
92d7f7b0 JS |
6471 | |
6472 | switch (mb->mbxStatus) { | |
6473 | case 0x11: /* unsupported feature */ | |
6474 | case 0x9603: /* max_vpi exceeded */ | |
7f5f3d0d | 6475 | case 0x9602: /* Link event since CLEAR_LA */ |
92d7f7b0 JS |
6476 | /* giving up on vport registration */ |
6477 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6478 | spin_lock_irq(shost->host_lock); | |
6479 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
6480 | spin_unlock_irq(shost->host_lock); | |
6481 | lpfc_can_disctmo(vport); | |
6482 | break; | |
695a814e JS |
6483 | /* If reg_vpi fail with invalid VPI status, re-init VPI */ |
6484 | case 0x20: | |
6485 | spin_lock_irq(shost->host_lock); | |
6486 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
6487 | spin_unlock_irq(shost->host_lock); | |
6488 | lpfc_init_vpi(phba, pmb, vport->vpi); | |
6489 | pmb->vport = vport; | |
6490 | pmb->mbox_cmpl = lpfc_init_vpi_cmpl; | |
6491 | rc = lpfc_sli_issue_mbox(phba, pmb, | |
6492 | MBX_NOWAIT); | |
6493 | if (rc == MBX_NOT_FINISHED) { | |
6494 | lpfc_printf_vlog(vport, | |
6495 | KERN_ERR, LOG_MBOX, | |
6496 | "2732 Failed to issue INIT_VPI" | |
6497 | " mailbox command\n"); | |
6498 | } else { | |
6499 | lpfc_nlp_put(ndlp); | |
6500 | return; | |
6501 | } | |
6502 | ||
92d7f7b0 JS |
6503 | default: |
6504 | /* Try to recover from this error */ | |
5af5eee7 JS |
6505 | if (phba->sli_rev == LPFC_SLI_REV4) |
6506 | lpfc_sli4_unreg_all_rpis(vport); | |
92d7f7b0 | 6507 | lpfc_mbx_unreg_vpi(vport); |
09372820 | 6508 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 6509 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
09372820 | 6510 | spin_unlock_irq(shost->host_lock); |
4b40c59e JS |
6511 | if (vport->port_type == LPFC_PHYSICAL_PORT |
6512 | && !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) | |
7f5f3d0d JS |
6513 | lpfc_initial_flogi(vport); |
6514 | else | |
6515 | lpfc_initial_fdisc(vport); | |
92d7f7b0 JS |
6516 | break; |
6517 | } | |
92d7f7b0 | 6518 | } else { |
695a814e | 6519 | spin_lock_irq(shost->host_lock); |
1987807d | 6520 | vport->vpi_state |= LPFC_VPI_REGISTERED; |
695a814e JS |
6521 | spin_unlock_irq(shost->host_lock); |
6522 | if (vport == phba->pport) { | |
6fb120a7 JS |
6523 | if (phba->sli_rev < LPFC_SLI_REV4) |
6524 | lpfc_issue_fabric_reglogin(vport); | |
695a814e | 6525 | else { |
fc2b989b JS |
6526 | /* |
6527 | * If the physical port is instantiated using | |
6528 | * FDISC, do not start vport discovery. | |
6529 | */ | |
6530 | if (vport->port_state != LPFC_FDISC) | |
6531 | lpfc_start_fdiscs(phba); | |
695a814e JS |
6532 | lpfc_do_scr_ns_plogi(phba, vport); |
6533 | } | |
6534 | } else | |
92d7f7b0 JS |
6535 | lpfc_do_scr_ns_plogi(phba, vport); |
6536 | } | |
38b92ef8 | 6537 | mbox_err_exit: |
fa4066b6 JS |
6538 | /* Now, we decrement the ndlp reference count held for this |
6539 | * callback function | |
6540 | */ | |
6541 | lpfc_nlp_put(ndlp); | |
6542 | ||
92d7f7b0 JS |
6543 | mempool_free(pmb, phba->mbox_mem_pool); |
6544 | return; | |
6545 | } | |
6546 | ||
e59058c4 | 6547 | /** |
3621a710 | 6548 | * lpfc_register_new_vport - Register a new vport with a HBA |
e59058c4 JS |
6549 | * @phba: pointer to lpfc hba data structure. |
6550 | * @vport: pointer to a host virtual N_Port data structure. | |
6551 | * @ndlp: pointer to a node-list data structure. | |
6552 | * | |
6553 | * This routine registers the @vport as a new virtual port with a HBA. | |
6554 | * It is done through a registering vpi mailbox command. | |
6555 | **/ | |
695a814e | 6556 | void |
92d7f7b0 JS |
6557 | lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, |
6558 | struct lpfc_nodelist *ndlp) | |
6559 | { | |
09372820 | 6560 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
92d7f7b0 JS |
6561 | LPFC_MBOXQ_t *mbox; |
6562 | ||
6563 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
6564 | if (mbox) { | |
6fb120a7 | 6565 | lpfc_reg_vpi(vport, mbox); |
92d7f7b0 JS |
6566 | mbox->vport = vport; |
6567 | mbox->context2 = lpfc_nlp_get(ndlp); | |
6568 | mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; | |
0b727fea | 6569 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
92d7f7b0 | 6570 | == MBX_NOT_FINISHED) { |
fa4066b6 JS |
6571 | /* mailbox command not success, decrement ndlp |
6572 | * reference count for this command | |
6573 | */ | |
6574 | lpfc_nlp_put(ndlp); | |
92d7f7b0 | 6575 | mempool_free(mbox, phba->mbox_mem_pool); |
92d7f7b0 | 6576 | |
e8b62011 JS |
6577 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
6578 | "0253 Register VPI: Can't send mbox\n"); | |
fa4066b6 | 6579 | goto mbox_err_exit; |
92d7f7b0 JS |
6580 | } |
6581 | } else { | |
e8b62011 JS |
6582 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
6583 | "0254 Register VPI: no memory\n"); | |
fa4066b6 | 6584 | goto mbox_err_exit; |
92d7f7b0 | 6585 | } |
fa4066b6 JS |
6586 | return; |
6587 | ||
6588 | mbox_err_exit: | |
6589 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6590 | spin_lock_irq(shost->host_lock); | |
6591 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; | |
6592 | spin_unlock_irq(shost->host_lock); | |
6593 | return; | |
92d7f7b0 JS |
6594 | } |
6595 | ||
695a814e | 6596 | /** |
0c9ab6f5 | 6597 | * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer |
695a814e JS |
6598 | * @phba: pointer to lpfc hba data structure. |
6599 | * | |
0c9ab6f5 | 6600 | * This routine cancels the retry delay timers to all the vports. |
695a814e JS |
6601 | **/ |
6602 | void | |
0c9ab6f5 | 6603 | lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba) |
695a814e JS |
6604 | { |
6605 | struct lpfc_vport **vports; | |
6606 | struct lpfc_nodelist *ndlp; | |
695a814e | 6607 | uint32_t link_state; |
0c9ab6f5 | 6608 | int i; |
695a814e JS |
6609 | |
6610 | /* Treat this failure as linkdown for all vports */ | |
6611 | link_state = phba->link_state; | |
6612 | lpfc_linkdown(phba); | |
6613 | phba->link_state = link_state; | |
6614 | ||
6615 | vports = lpfc_create_vport_work_array(phba); | |
6616 | ||
6617 | if (vports) { | |
6618 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
6619 | ndlp = lpfc_findnode_did(vports[i], Fabric_DID); | |
6620 | if (ndlp) | |
6621 | lpfc_cancel_retry_delay_tmo(vports[i], ndlp); | |
6622 | lpfc_els_flush_cmd(vports[i]); | |
6623 | } | |
6624 | lpfc_destroy_vport_work_array(phba, vports); | |
6625 | } | |
0c9ab6f5 JS |
6626 | } |
6627 | ||
6628 | /** | |
6629 | * lpfc_retry_pport_discovery - Start timer to retry FLOGI. | |
6630 | * @phba: pointer to lpfc hba data structure. | |
6631 | * | |
6632 | * This routine abort all pending discovery commands and | |
6633 | * start a timer to retry FLOGI for the physical port | |
6634 | * discovery. | |
6635 | **/ | |
6636 | void | |
6637 | lpfc_retry_pport_discovery(struct lpfc_hba *phba) | |
6638 | { | |
6639 | struct lpfc_nodelist *ndlp; | |
6640 | struct Scsi_Host *shost; | |
6641 | ||
6642 | /* Cancel the all vports retry delay retry timers */ | |
6643 | lpfc_cancel_all_vport_retry_delay_timer(phba); | |
695a814e JS |
6644 | |
6645 | /* If fabric require FLOGI, then re-instantiate physical login */ | |
6646 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); | |
6647 | if (!ndlp) | |
6648 | return; | |
6649 | ||
695a814e JS |
6650 | shost = lpfc_shost_from_vport(phba->pport); |
6651 | mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); | |
6652 | spin_lock_irq(shost->host_lock); | |
6653 | ndlp->nlp_flag |= NLP_DELAY_TMO; | |
6654 | spin_unlock_irq(shost->host_lock); | |
6655 | ndlp->nlp_last_elscmd = ELS_CMD_FLOGI; | |
6656 | phba->pport->port_state = LPFC_FLOGI; | |
6657 | return; | |
6658 | } | |
6659 | ||
6660 | /** | |
6661 | * lpfc_fabric_login_reqd - Check if FLOGI required. | |
6662 | * @phba: pointer to lpfc hba data structure. | |
6663 | * @cmdiocb: pointer to FDISC command iocb. | |
6664 | * @rspiocb: pointer to FDISC response iocb. | |
6665 | * | |
6666 | * This routine checks if a FLOGI is reguired for FDISC | |
6667 | * to succeed. | |
6668 | **/ | |
6669 | static int | |
6670 | lpfc_fabric_login_reqd(struct lpfc_hba *phba, | |
6671 | struct lpfc_iocbq *cmdiocb, | |
6672 | struct lpfc_iocbq *rspiocb) | |
6673 | { | |
6674 | ||
6675 | if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) || | |
6676 | (rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED)) | |
6677 | return 0; | |
6678 | else | |
6679 | return 1; | |
6680 | } | |
6681 | ||
e59058c4 | 6682 | /** |
3621a710 | 6683 | * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command |
e59058c4 JS |
6684 | * @phba: pointer to lpfc hba data structure. |
6685 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
6686 | * @rspiocb: pointer to lpfc response iocb data structure. | |
6687 | * | |
6688 | * This routine is the completion callback function to a Fabric Discover | |
6689 | * (FDISC) ELS command. Since all the FDISC ELS commands are issued | |
6690 | * single threaded, each FDISC completion callback function will reset | |
6691 | * the discovery timer for all vports such that the timers will not get | |
6692 | * unnecessary timeout. The function checks the FDISC IOCB status. If error | |
6693 | * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the | |
6694 | * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID | |
6695 | * assigned to the vport has been changed with the completion of the FDISC | |
6696 | * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index) | |
6697 | * are unregistered from the HBA, and then the lpfc_register_new_vport() | |
6698 | * routine is invoked to register new vport with the HBA. Otherwise, the | |
6699 | * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name | |
6700 | * Server for State Change Request (SCR). | |
6701 | **/ | |
92d7f7b0 JS |
6702 | static void |
6703 | lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
6704 | struct lpfc_iocbq *rspiocb) | |
6705 | { | |
6706 | struct lpfc_vport *vport = cmdiocb->vport; | |
6707 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6708 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
6709 | struct lpfc_nodelist *np; | |
6710 | struct lpfc_nodelist *next_np; | |
6711 | IOCB_t *irsp = &rspiocb->iocb; | |
6712 | struct lpfc_iocbq *piocb; | |
6713 | ||
e8b62011 JS |
6714 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
6715 | "0123 FDISC completes. x%x/x%x prevDID: x%x\n", | |
6716 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
6717 | vport->fc_prevDID); | |
92d7f7b0 JS |
6718 | /* Since all FDISCs are being single threaded, we |
6719 | * must reset the discovery timer for ALL vports | |
6720 | * waiting to send FDISC when one completes. | |
6721 | */ | |
6722 | list_for_each_entry(piocb, &phba->fabric_iocb_list, list) { | |
6723 | lpfc_set_disctmo(piocb->vport); | |
6724 | } | |
6725 | ||
858c9f6c JS |
6726 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
6727 | "FDISC cmpl: status:x%x/x%x prevdid:x%x", | |
6728 | irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID); | |
6729 | ||
92d7f7b0 | 6730 | if (irsp->ulpStatus) { |
695a814e JS |
6731 | |
6732 | if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) { | |
6733 | lpfc_retry_pport_discovery(phba); | |
6734 | goto out; | |
6735 | } | |
6736 | ||
92d7f7b0 JS |
6737 | /* Check for retry */ |
6738 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) | |
6739 | goto out; | |
92d7f7b0 | 6740 | /* FDISC failed */ |
e8b62011 | 6741 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 6742 | "0126 FDISC failed. (%d/%d)\n", |
e8b62011 | 6743 | irsp->ulpStatus, irsp->un.ulpWord[4]); |
d7c255b2 JS |
6744 | goto fdisc_failed; |
6745 | } | |
d7c255b2 | 6746 | spin_lock_irq(shost->host_lock); |
695a814e | 6747 | vport->fc_flag &= ~FC_VPORT_CVL_RCVD; |
4b40c59e | 6748 | vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; |
d7c255b2 JS |
6749 | vport->fc_flag |= FC_FABRIC; |
6750 | if (vport->phba->fc_topology == TOPOLOGY_LOOP) | |
6751 | vport->fc_flag |= FC_PUBLIC_LOOP; | |
6752 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 | 6753 | |
d7c255b2 JS |
6754 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
6755 | lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); | |
6756 | if ((vport->fc_prevDID != vport->fc_myDID) && | |
6757 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
6758 | /* If our NportID changed, we need to ensure all | |
6759 | * remaining NPORTs get unreg_login'ed so we can | |
6760 | * issue unreg_vpi. | |
6761 | */ | |
6762 | list_for_each_entry_safe(np, next_np, | |
6763 | &vport->fc_nodes, nlp_listp) { | |
6764 | if (!NLP_CHK_NODE_ACT(ndlp) || | |
6765 | (np->nlp_state != NLP_STE_NPR_NODE) || | |
6766 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
6767 | continue; | |
09372820 | 6768 | spin_lock_irq(shost->host_lock); |
d7c255b2 | 6769 | np->nlp_flag &= ~NLP_NPR_ADISC; |
09372820 | 6770 | spin_unlock_irq(shost->host_lock); |
d7c255b2 | 6771 | lpfc_unreg_rpi(vport, np); |
92d7f7b0 | 6772 | } |
78730cfe | 6773 | lpfc_cleanup_pending_mbox(vport); |
5af5eee7 JS |
6774 | |
6775 | if (phba->sli_rev == LPFC_SLI_REV4) | |
6776 | lpfc_sli4_unreg_all_rpis(vport); | |
6777 | ||
d7c255b2 JS |
6778 | lpfc_mbx_unreg_vpi(vport); |
6779 | spin_lock_irq(shost->host_lock); | |
6780 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
0f65ff68 JS |
6781 | if (phba->sli_rev == LPFC_SLI_REV4) |
6782 | vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; | |
4b40c59e JS |
6783 | else |
6784 | vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG; | |
d7c255b2 | 6785 | spin_unlock_irq(shost->host_lock); |
38b92ef8 JS |
6786 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
6787 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
6788 | /* | |
6789 | * Driver needs to re-reg VPI in order for f/w | |
6790 | * to update the MAC address. | |
6791 | */ | |
6792 | lpfc_register_new_vport(phba, vport, ndlp); | |
5ac6b303 | 6793 | goto out; |
92d7f7b0 JS |
6794 | } |
6795 | ||
ecfd03c6 JS |
6796 | if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI) |
6797 | lpfc_issue_init_vpi(vport); | |
6798 | else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) | |
d7c255b2 JS |
6799 | lpfc_register_new_vport(phba, vport, ndlp); |
6800 | else | |
6801 | lpfc_do_scr_ns_plogi(phba, vport); | |
6802 | goto out; | |
6803 | fdisc_failed: | |
6804 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6805 | /* Cancel discovery timer */ | |
6806 | lpfc_can_disctmo(vport); | |
6807 | lpfc_nlp_put(ndlp); | |
92d7f7b0 JS |
6808 | out: |
6809 | lpfc_els_free_iocb(phba, cmdiocb); | |
6810 | } | |
6811 | ||
e59058c4 | 6812 | /** |
3621a710 | 6813 | * lpfc_issue_els_fdisc - Issue a fdisc iocb command |
e59058c4 JS |
6814 | * @vport: pointer to a virtual N_Port data structure. |
6815 | * @ndlp: pointer to a node-list data structure. | |
6816 | * @retry: number of retries to the command IOCB. | |
6817 | * | |
6818 | * This routine prepares and issues a Fabric Discover (FDISC) IOCB to | |
6819 | * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb() | |
6820 | * routine to issue the IOCB, which makes sure only one outstanding fabric | |
6821 | * IOCB will be sent off HBA at any given time. | |
6822 | * | |
6823 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
6824 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
6825 | * will be stored into the context1 field of the IOCB for the completion | |
6826 | * callback function to the FDISC ELS command. | |
6827 | * | |
6828 | * Return code | |
6829 | * 0 - Successfully issued fdisc iocb command | |
6830 | * 1 - Failed to issue fdisc iocb command | |
6831 | **/ | |
a6ababd2 | 6832 | static int |
92d7f7b0 JS |
6833 | lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
6834 | uint8_t retry) | |
6835 | { | |
6836 | struct lpfc_hba *phba = vport->phba; | |
6837 | IOCB_t *icmd; | |
6838 | struct lpfc_iocbq *elsiocb; | |
6839 | struct serv_parm *sp; | |
6840 | uint8_t *pcmd; | |
6841 | uint16_t cmdsize; | |
6842 | int did = ndlp->nlp_DID; | |
6843 | int rc; | |
92d7f7b0 | 6844 | |
5ffc266e | 6845 | vport->port_state = LPFC_FDISC; |
92d7f7b0 JS |
6846 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
6847 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, | |
6848 | ELS_CMD_FDISC); | |
6849 | if (!elsiocb) { | |
92d7f7b0 | 6850 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
6851 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6852 | "0255 Issue FDISC: no IOCB\n"); | |
92d7f7b0 JS |
6853 | return 1; |
6854 | } | |
6855 | ||
6856 | icmd = &elsiocb->iocb; | |
6857 | icmd->un.elsreq64.myID = 0; | |
6858 | icmd->un.elsreq64.fl = 1; | |
6859 | ||
f1126688 JS |
6860 | if (phba->sli_rev == LPFC_SLI_REV4) { |
6861 | /* FDISC needs to be 1 for WQE VPI */ | |
6862 | elsiocb->iocb.ulpCt_h = (SLI4_CT_VPI >> 1) & 1; | |
6863 | elsiocb->iocb.ulpCt_l = SLI4_CT_VPI & 1 ; | |
6864 | /* Set the ulpContext to the vpi */ | |
6865 | elsiocb->iocb.ulpContext = vport->vpi + phba->vpi_base; | |
6866 | } else { | |
6867 | /* For FDISC, Let FDISC rsp set the NPortID for this VPI */ | |
6868 | icmd->ulpCt_h = 1; | |
6869 | icmd->ulpCt_l = 0; | |
6870 | } | |
92d7f7b0 JS |
6871 | |
6872 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
6873 | *((uint32_t *) (pcmd)) = ELS_CMD_FDISC; | |
6874 | pcmd += sizeof(uint32_t); /* CSP Word 1 */ | |
6875 | memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm)); | |
6876 | sp = (struct serv_parm *) pcmd; | |
6877 | /* Setup CSPs accordingly for Fabric */ | |
6878 | sp->cmn.e_d_tov = 0; | |
6879 | sp->cmn.w2.r_a_tov = 0; | |
6880 | sp->cls1.classValid = 0; | |
6881 | sp->cls2.seqDelivery = 1; | |
6882 | sp->cls3.seqDelivery = 1; | |
6883 | ||
6884 | pcmd += sizeof(uint32_t); /* CSP Word 2 */ | |
6885 | pcmd += sizeof(uint32_t); /* CSP Word 3 */ | |
6886 | pcmd += sizeof(uint32_t); /* CSP Word 4 */ | |
6887 | pcmd += sizeof(uint32_t); /* Port Name */ | |
6888 | memcpy(pcmd, &vport->fc_portname, 8); | |
6889 | pcmd += sizeof(uint32_t); /* Node Name */ | |
6890 | pcmd += sizeof(uint32_t); /* Node Name */ | |
6891 | memcpy(pcmd, &vport->fc_nodename, 8); | |
6892 | ||
6893 | lpfc_set_disctmo(vport); | |
6894 | ||
6895 | phba->fc_stat.elsXmitFDISC++; | |
6896 | elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc; | |
6897 | ||
858c9f6c JS |
6898 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
6899 | "Issue FDISC: did:x%x", | |
6900 | did, 0, 0); | |
6901 | ||
92d7f7b0 JS |
6902 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
6903 | if (rc == IOCB_ERROR) { | |
6904 | lpfc_els_free_iocb(phba, elsiocb); | |
92d7f7b0 | 6905 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
6906 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6907 | "0256 Issue FDISC: Cannot send IOCB\n"); | |
92d7f7b0 JS |
6908 | return 1; |
6909 | } | |
6910 | lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING); | |
92d7f7b0 JS |
6911 | return 0; |
6912 | } | |
6913 | ||
e59058c4 | 6914 | /** |
3621a710 | 6915 | * lpfc_cmpl_els_npiv_logo - Completion function with vport logo |
e59058c4 JS |
6916 | * @phba: pointer to lpfc hba data structure. |
6917 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
6918 | * @rspiocb: pointer to lpfc response iocb data structure. | |
6919 | * | |
6920 | * This routine is the completion callback function to the issuing of a LOGO | |
6921 | * ELS command off a vport. It frees the command IOCB and then decrement the | |
6922 | * reference count held on ndlp for this completion function, indicating that | |
6923 | * the reference to the ndlp is no long needed. Note that the | |
6924 | * lpfc_els_free_iocb() routine decrements the ndlp reference held for this | |
6925 | * callback function and an additional explicit ndlp reference decrementation | |
6926 | * will trigger the actual release of the ndlp. | |
6927 | **/ | |
92d7f7b0 JS |
6928 | static void |
6929 | lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
6930 | struct lpfc_iocbq *rspiocb) | |
6931 | { | |
6932 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c | 6933 | IOCB_t *irsp; |
e47c9093 JS |
6934 | struct lpfc_nodelist *ndlp; |
6935 | ndlp = (struct lpfc_nodelist *)cmdiocb->context1; | |
858c9f6c JS |
6936 | |
6937 | irsp = &rspiocb->iocb; | |
6938 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
6939 | "LOGO npiv cmpl: status:x%x/x%x did:x%x", | |
6940 | irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID); | |
92d7f7b0 JS |
6941 | |
6942 | lpfc_els_free_iocb(phba, cmdiocb); | |
6943 | vport->unreg_vpi_cmpl = VPORT_ERROR; | |
e47c9093 JS |
6944 | |
6945 | /* Trigger the release of the ndlp after logo */ | |
6946 | lpfc_nlp_put(ndlp); | |
92d7f7b0 JS |
6947 | } |
6948 | ||
e59058c4 | 6949 | /** |
3621a710 | 6950 | * lpfc_issue_els_npiv_logo - Issue a logo off a vport |
e59058c4 JS |
6951 | * @vport: pointer to a virtual N_Port data structure. |
6952 | * @ndlp: pointer to a node-list data structure. | |
6953 | * | |
6954 | * This routine issues a LOGO ELS command to an @ndlp off a @vport. | |
6955 | * | |
6956 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
6957 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
6958 | * will be stored into the context1 field of the IOCB for the completion | |
6959 | * callback function to the LOGO ELS command. | |
6960 | * | |
6961 | * Return codes | |
6962 | * 0 - Successfully issued logo off the @vport | |
6963 | * 1 - Failed to issue logo off the @vport | |
6964 | **/ | |
92d7f7b0 JS |
6965 | int |
6966 | lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) | |
6967 | { | |
6968 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6969 | struct lpfc_hba *phba = vport->phba; | |
92d7f7b0 JS |
6970 | IOCB_t *icmd; |
6971 | struct lpfc_iocbq *elsiocb; | |
6972 | uint8_t *pcmd; | |
6973 | uint16_t cmdsize; | |
6974 | ||
6975 | cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name); | |
6976 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID, | |
6977 | ELS_CMD_LOGO); | |
6978 | if (!elsiocb) | |
6979 | return 1; | |
6980 | ||
6981 | icmd = &elsiocb->iocb; | |
6982 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
6983 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
6984 | pcmd += sizeof(uint32_t); | |
6985 | ||
6986 | /* Fill in LOGO payload */ | |
6987 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); | |
6988 | pcmd += sizeof(uint32_t); | |
6989 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
6990 | ||
858c9f6c JS |
6991 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
6992 | "Issue LOGO npiv did:x%x flg:x%x", | |
6993 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
6994 | ||
92d7f7b0 JS |
6995 | elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo; |
6996 | spin_lock_irq(shost->host_lock); | |
6997 | ndlp->nlp_flag |= NLP_LOGO_SND; | |
6998 | spin_unlock_irq(shost->host_lock); | |
3772a991 JS |
6999 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
7000 | IOCB_ERROR) { | |
92d7f7b0 JS |
7001 | spin_lock_irq(shost->host_lock); |
7002 | ndlp->nlp_flag &= ~NLP_LOGO_SND; | |
7003 | spin_unlock_irq(shost->host_lock); | |
7004 | lpfc_els_free_iocb(phba, elsiocb); | |
7005 | return 1; | |
7006 | } | |
7007 | return 0; | |
7008 | } | |
7009 | ||
e59058c4 | 7010 | /** |
3621a710 | 7011 | * lpfc_fabric_block_timeout - Handler function to the fabric block timer |
e59058c4 JS |
7012 | * @ptr: holder for the timer function associated data. |
7013 | * | |
7014 | * This routine is invoked by the fabric iocb block timer after | |
7015 | * timeout. It posts the fabric iocb block timeout event by setting the | |
7016 | * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes | |
7017 | * lpfc_worker_wake_up() routine to wake up the worker thread. It is for | |
7018 | * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the | |
7019 | * posted event WORKER_FABRIC_BLOCK_TMO. | |
7020 | **/ | |
92d7f7b0 JS |
7021 | void |
7022 | lpfc_fabric_block_timeout(unsigned long ptr) | |
7023 | { | |
7024 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; | |
7025 | unsigned long iflags; | |
7026 | uint32_t tmo_posted; | |
5e9d9b82 | 7027 | |
92d7f7b0 JS |
7028 | spin_lock_irqsave(&phba->pport->work_port_lock, iflags); |
7029 | tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO; | |
7030 | if (!tmo_posted) | |
7031 | phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO; | |
7032 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); | |
7033 | ||
5e9d9b82 JS |
7034 | if (!tmo_posted) |
7035 | lpfc_worker_wake_up(phba); | |
7036 | return; | |
92d7f7b0 JS |
7037 | } |
7038 | ||
e59058c4 | 7039 | /** |
3621a710 | 7040 | * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list |
e59058c4 JS |
7041 | * @phba: pointer to lpfc hba data structure. |
7042 | * | |
7043 | * This routine issues one fabric iocb from the driver internal list to | |
7044 | * the HBA. It first checks whether it's ready to issue one fabric iocb to | |
7045 | * the HBA (whether there is no outstanding fabric iocb). If so, it shall | |
7046 | * remove one pending fabric iocb from the driver internal list and invokes | |
7047 | * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA. | |
7048 | **/ | |
92d7f7b0 JS |
7049 | static void |
7050 | lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) | |
7051 | { | |
7052 | struct lpfc_iocbq *iocb; | |
7053 | unsigned long iflags; | |
7054 | int ret; | |
92d7f7b0 JS |
7055 | IOCB_t *cmd; |
7056 | ||
7057 | repeat: | |
7058 | iocb = NULL; | |
7059 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7f5f3d0d | 7060 | /* Post any pending iocb to the SLI layer */ |
92d7f7b0 JS |
7061 | if (atomic_read(&phba->fabric_iocb_count) == 0) { |
7062 | list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb), | |
7063 | list); | |
7064 | if (iocb) | |
7f5f3d0d | 7065 | /* Increment fabric iocb count to hold the position */ |
92d7f7b0 JS |
7066 | atomic_inc(&phba->fabric_iocb_count); |
7067 | } | |
7068 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7069 | if (iocb) { | |
7070 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
7071 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
7072 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
7073 | ||
858c9f6c JS |
7074 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
7075 | "Fabric sched1: ste:x%x", | |
7076 | iocb->vport->port_state, 0, 0); | |
7077 | ||
3772a991 | 7078 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
7079 | |
7080 | if (ret == IOCB_ERROR) { | |
7081 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
7082 | iocb->fabric_iocb_cmpl = NULL; | |
7083 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7084 | cmd = &iocb->iocb; | |
7085 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
7086 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
7087 | iocb->iocb_cmpl(phba, iocb, iocb); | |
7088 | ||
7089 | atomic_dec(&phba->fabric_iocb_count); | |
7090 | goto repeat; | |
7091 | } | |
7092 | } | |
7093 | ||
7094 | return; | |
7095 | } | |
7096 | ||
e59058c4 | 7097 | /** |
3621a710 | 7098 | * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command |
e59058c4 JS |
7099 | * @phba: pointer to lpfc hba data structure. |
7100 | * | |
7101 | * This routine unblocks the issuing fabric iocb command. The function | |
7102 | * will clear the fabric iocb block bit and then invoke the routine | |
7103 | * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb | |
7104 | * from the driver internal fabric iocb list. | |
7105 | **/ | |
92d7f7b0 JS |
7106 | void |
7107 | lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) | |
7108 | { | |
7109 | clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7110 | ||
7111 | lpfc_resume_fabric_iocbs(phba); | |
7112 | return; | |
7113 | } | |
7114 | ||
e59058c4 | 7115 | /** |
3621a710 | 7116 | * lpfc_block_fabric_iocbs - Block issuing fabric iocb command |
e59058c4 JS |
7117 | * @phba: pointer to lpfc hba data structure. |
7118 | * | |
7119 | * This routine blocks the issuing fabric iocb for a specified amount of | |
7120 | * time (currently 100 ms). This is done by set the fabric iocb block bit | |
7121 | * and set up a timeout timer for 100ms. When the block bit is set, no more | |
7122 | * fabric iocb will be issued out of the HBA. | |
7123 | **/ | |
92d7f7b0 JS |
7124 | static void |
7125 | lpfc_block_fabric_iocbs(struct lpfc_hba *phba) | |
7126 | { | |
7127 | int blocked; | |
7128 | ||
7129 | blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7f5f3d0d | 7130 | /* Start a timer to unblock fabric iocbs after 100ms */ |
92d7f7b0 JS |
7131 | if (!blocked) |
7132 | mod_timer(&phba->fabric_block_timer, jiffies + HZ/10 ); | |
7133 | ||
7134 | return; | |
7135 | } | |
7136 | ||
e59058c4 | 7137 | /** |
3621a710 | 7138 | * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb |
e59058c4 JS |
7139 | * @phba: pointer to lpfc hba data structure. |
7140 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7141 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7142 | * | |
7143 | * This routine is the callback function that is put to the fabric iocb's | |
7144 | * callback function pointer (iocb->iocb_cmpl). The original iocb's callback | |
7145 | * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback | |
7146 | * function first restores and invokes the original iocb's callback function | |
7147 | * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next | |
7148 | * fabric bound iocb from the driver internal fabric iocb list onto the wire. | |
7149 | **/ | |
92d7f7b0 JS |
7150 | static void |
7151 | lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7152 | struct lpfc_iocbq *rspiocb) | |
7153 | { | |
7154 | struct ls_rjt stat; | |
7155 | ||
7156 | if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC) | |
7157 | BUG(); | |
7158 | ||
7159 | switch (rspiocb->iocb.ulpStatus) { | |
7160 | case IOSTAT_NPORT_RJT: | |
7161 | case IOSTAT_FABRIC_RJT: | |
7162 | if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
7163 | lpfc_block_fabric_iocbs(phba); | |
ed957684 | 7164 | } |
92d7f7b0 JS |
7165 | break; |
7166 | ||
7167 | case IOSTAT_NPORT_BSY: | |
7168 | case IOSTAT_FABRIC_BSY: | |
7169 | lpfc_block_fabric_iocbs(phba); | |
7170 | break; | |
7171 | ||
7172 | case IOSTAT_LS_RJT: | |
7173 | stat.un.lsRjtError = | |
7174 | be32_to_cpu(rspiocb->iocb.un.ulpWord[4]); | |
7175 | if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) || | |
7176 | (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY)) | |
7177 | lpfc_block_fabric_iocbs(phba); | |
7178 | break; | |
7179 | } | |
7180 | ||
7181 | if (atomic_read(&phba->fabric_iocb_count) == 0) | |
7182 | BUG(); | |
7183 | ||
7184 | cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl; | |
7185 | cmdiocb->fabric_iocb_cmpl = NULL; | |
7186 | cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7187 | cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb); | |
7188 | ||
7189 | atomic_dec(&phba->fabric_iocb_count); | |
7190 | if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) { | |
7f5f3d0d JS |
7191 | /* Post any pending iocbs to HBA */ |
7192 | lpfc_resume_fabric_iocbs(phba); | |
92d7f7b0 JS |
7193 | } |
7194 | } | |
7195 | ||
e59058c4 | 7196 | /** |
3621a710 | 7197 | * lpfc_issue_fabric_iocb - Issue a fabric iocb command |
e59058c4 JS |
7198 | * @phba: pointer to lpfc hba data structure. |
7199 | * @iocb: pointer to lpfc command iocb data structure. | |
7200 | * | |
7201 | * This routine is used as the top-level API for issuing a fabric iocb command | |
7202 | * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver | |
7203 | * function makes sure that only one fabric bound iocb will be outstanding at | |
7204 | * any given time. As such, this function will first check to see whether there | |
7205 | * is already an outstanding fabric iocb on the wire. If so, it will put the | |
7206 | * newly issued iocb onto the driver internal fabric iocb list, waiting to be | |
7207 | * issued later. Otherwise, it will issue the iocb on the wire and update the | |
7208 | * fabric iocb count it indicate that there is one fabric iocb on the wire. | |
7209 | * | |
7210 | * Note, this implementation has a potential sending out fabric IOCBs out of | |
7211 | * order. The problem is caused by the construction of the "ready" boolen does | |
7212 | * not include the condition that the internal fabric IOCB list is empty. As | |
7213 | * such, it is possible a fabric IOCB issued by this routine might be "jump" | |
7214 | * ahead of the fabric IOCBs in the internal list. | |
7215 | * | |
7216 | * Return code | |
7217 | * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully | |
7218 | * IOCB_ERROR - failed to issue fabric iocb | |
7219 | **/ | |
a6ababd2 | 7220 | static int |
92d7f7b0 JS |
7221 | lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) |
7222 | { | |
7223 | unsigned long iflags; | |
92d7f7b0 JS |
7224 | int ready; |
7225 | int ret; | |
7226 | ||
7227 | if (atomic_read(&phba->fabric_iocb_count) > 1) | |
7228 | BUG(); | |
7229 | ||
7230 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7231 | ready = atomic_read(&phba->fabric_iocb_count) == 0 && | |
7232 | !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7233 | ||
7f5f3d0d JS |
7234 | if (ready) |
7235 | /* Increment fabric iocb count to hold the position */ | |
7236 | atomic_inc(&phba->fabric_iocb_count); | |
92d7f7b0 JS |
7237 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
7238 | if (ready) { | |
7239 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
7240 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
7241 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
7242 | ||
858c9f6c JS |
7243 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
7244 | "Fabric sched2: ste:x%x", | |
7245 | iocb->vport->port_state, 0, 0); | |
7246 | ||
3772a991 | 7247 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
7248 | |
7249 | if (ret == IOCB_ERROR) { | |
7250 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
7251 | iocb->fabric_iocb_cmpl = NULL; | |
7252 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7253 | atomic_dec(&phba->fabric_iocb_count); | |
7254 | } | |
7255 | } else { | |
7256 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7257 | list_add_tail(&iocb->list, &phba->fabric_iocb_list); | |
7258 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7259 | ret = IOCB_SUCCESS; | |
7260 | } | |
7261 | return ret; | |
7262 | } | |
7263 | ||
e59058c4 | 7264 | /** |
3621a710 | 7265 | * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list |
e59058c4 JS |
7266 | * @vport: pointer to a virtual N_Port data structure. |
7267 | * | |
7268 | * This routine aborts all the IOCBs associated with a @vport from the | |
7269 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
7270 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
7271 | * list, removes each IOCB associated with the @vport off the list, set the | |
7272 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
7273 | * associated with the IOCB. | |
7274 | **/ | |
a6ababd2 | 7275 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport) |
92d7f7b0 JS |
7276 | { |
7277 | LIST_HEAD(completions); | |
7278 | struct lpfc_hba *phba = vport->phba; | |
7279 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
92d7f7b0 JS |
7280 | |
7281 | spin_lock_irq(&phba->hbalock); | |
7282 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
7283 | list) { | |
7284 | ||
7285 | if (piocb->vport != vport) | |
7286 | continue; | |
7287 | ||
7288 | list_move_tail(&piocb->list, &completions); | |
7289 | } | |
7290 | spin_unlock_irq(&phba->hbalock); | |
7291 | ||
a257bf90 JS |
7292 | /* Cancel all the IOCBs from the completions list */ |
7293 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7294 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
7295 | } |
7296 | ||
e59058c4 | 7297 | /** |
3621a710 | 7298 | * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list |
e59058c4 JS |
7299 | * @ndlp: pointer to a node-list data structure. |
7300 | * | |
7301 | * This routine aborts all the IOCBs associated with an @ndlp from the | |
7302 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
7303 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
7304 | * list, removes each IOCB associated with the @ndlp off the list, set the | |
7305 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
7306 | * associated with the IOCB. | |
7307 | **/ | |
92d7f7b0 JS |
7308 | void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) |
7309 | { | |
7310 | LIST_HEAD(completions); | |
a257bf90 | 7311 | struct lpfc_hba *phba = ndlp->phba; |
92d7f7b0 JS |
7312 | struct lpfc_iocbq *tmp_iocb, *piocb; |
7313 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
92d7f7b0 JS |
7314 | |
7315 | spin_lock_irq(&phba->hbalock); | |
7316 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
7317 | list) { | |
7318 | if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) { | |
7319 | ||
7320 | list_move_tail(&piocb->list, &completions); | |
ed957684 | 7321 | } |
dea3101e | 7322 | } |
92d7f7b0 JS |
7323 | spin_unlock_irq(&phba->hbalock); |
7324 | ||
a257bf90 JS |
7325 | /* Cancel all the IOCBs from the completions list */ |
7326 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7327 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
7328 | } |
7329 | ||
e59058c4 | 7330 | /** |
3621a710 | 7331 | * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list |
e59058c4 JS |
7332 | * @phba: pointer to lpfc hba data structure. |
7333 | * | |
7334 | * This routine aborts all the IOCBs currently on the driver internal | |
7335 | * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS | |
7336 | * IOCB ring. This function takes the entire IOCB list off the fabric IOCB | |
7337 | * list, removes IOCBs off the list, set the status feild to | |
7338 | * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with | |
7339 | * the IOCB. | |
7340 | **/ | |
92d7f7b0 JS |
7341 | void lpfc_fabric_abort_hba(struct lpfc_hba *phba) |
7342 | { | |
7343 | LIST_HEAD(completions); | |
92d7f7b0 JS |
7344 | |
7345 | spin_lock_irq(&phba->hbalock); | |
7346 | list_splice_init(&phba->fabric_iocb_list, &completions); | |
7347 | spin_unlock_irq(&phba->hbalock); | |
7348 | ||
a257bf90 JS |
7349 | /* Cancel all the IOCBs from the completions list */ |
7350 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7351 | IOERR_SLI_ABORTED); | |
dea3101e | 7352 | } |
6fb120a7 JS |
7353 | |
7354 | /** | |
7355 | * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort | |
7356 | * @phba: pointer to lpfc hba data structure. | |
7357 | * @axri: pointer to the els xri abort wcqe structure. | |
7358 | * | |
7359 | * This routine is invoked by the worker thread to process a SLI4 slow-path | |
7360 | * ELS aborted xri. | |
7361 | **/ | |
7362 | void | |
7363 | lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba, | |
7364 | struct sli4_wcqe_xri_aborted *axri) | |
7365 | { | |
7366 | uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); | |
7367 | struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; | |
7368 | unsigned long iflag = 0; | |
589a52d6 | 7369 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
6fb120a7 | 7370 | |
0f65ff68 JS |
7371 | spin_lock_irqsave(&phba->hbalock, iflag); |
7372 | spin_lock(&phba->sli4_hba.abts_sgl_list_lock); | |
6fb120a7 JS |
7373 | list_for_each_entry_safe(sglq_entry, sglq_next, |
7374 | &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { | |
7375 | if (sglq_entry->sli4_xritag == xri) { | |
7376 | list_del(&sglq_entry->list); | |
6fb120a7 JS |
7377 | list_add_tail(&sglq_entry->list, |
7378 | &phba->sli4_hba.lpfc_sgl_list); | |
0f65ff68 JS |
7379 | sglq_entry->state = SGL_FREED; |
7380 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); | |
6fb120a7 | 7381 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
589a52d6 JS |
7382 | |
7383 | /* Check if TXQ queue needs to be serviced */ | |
7384 | if (pring->txq_cnt) | |
7385 | lpfc_worker_wake_up(phba); | |
6fb120a7 JS |
7386 | return; |
7387 | } | |
7388 | } | |
0f65ff68 JS |
7389 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); |
7390 | sglq_entry = __lpfc_get_active_sglq(phba, xri); | |
7391 | if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) { | |
7392 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7393 | return; | |
7394 | } | |
7395 | sglq_entry->state = SGL_XRI_ABORTED; | |
7396 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7397 | return; | |
6fb120a7 | 7398 | } |